KiCad PCB EDA Suite
KIGFX::OPENGL_GAL Class Reference

Class OpenGL_GAL is the OpenGL implementation of the Graphics Abstraction Layer. More...

#include <opengl_gal.h>

Inheritance diagram for KIGFX::OPENGL_GAL:
KIGFX::GAL KIGFX::GAL_DISPLAY_OPTIONS_OBSERVER

Classes

struct  TessParams
 

Public Member Functions

 OPENGL_GAL (GAL_DISPLAY_OPTIONS &aDisplayOptions, wxWindow *aParent, wxEvtHandler *aMouseListener=nullptr, wxEvtHandler *aPaintListener=nullptr, const wxString &aName=wxT("GLCanvas"))
 Constructor OPENGL_GAL. More...
 
virtual ~OPENGL_GAL ()
 
virtual bool IsInitialized () const override
 Returns the initalization status for the canvas. More...
 
bool IsVisible () const override
 > More...
 
virtual void BeginDrawing () override
 Begin the drawing, needs to be called for every new frame. More...
 
virtual void EndDrawing () override
 End the drawing, needs to be called for every new frame. More...
 
virtual void BeginUpdate () override
 Enables item update mode. More...
 
virtual void EndUpdate () override
 Disables item update mode. More...
 
virtual void DrawLine (const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint) override
 Draw a line. More...
 
virtual void DrawSegment (const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint, double aWidth) override
 Draw a rounded segment. More...
 
virtual void DrawCircle (const VECTOR2D &aCenterPoint, double aRadius) override
 Draw a circle using world coordinates. More...
 
virtual void DrawArc (const VECTOR2D &aCenterPoint, double aRadius, double aStartAngle, double aEndAngle) override
 Draw an arc. More...
 
virtual void DrawArcSegment (const VECTOR2D &aCenterPoint, double aRadius, double aStartAngle, double aEndAngle, double aWidth) override
 Draw an arc segment. More...
 
virtual void DrawRectangle (const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint) override
 Draw a rectangle. More...
 
virtual void DrawPolyline (const std::deque< VECTOR2D > &aPointList) override
 Draw a polyline. More...
 
virtual void DrawPolyline (const VECTOR2D aPointList[], int aListSize) override
 
virtual void DrawPolyline (const SHAPE_LINE_CHAIN &aLineChain) override
 
virtual void DrawPolygon (const std::deque< VECTOR2D > &aPointList) override
 Draw a polygon. More...
 
virtual void DrawPolygon (const VECTOR2D aPointList[], int aListSize) override
 
virtual void DrawPolygon (const SHAPE_POLY_SET &aPolySet) override
 
virtual void DrawCurve (const VECTOR2D &startPoint, const VECTOR2D &controlPointA, const VECTOR2D &controlPointB, const VECTOR2D &endPoint) override
 Draw a cubic bezier spline. More...
 
virtual void BitmapText (const wxString &aText, const VECTOR2D &aPosition, double aRotationAngle) override
 Draws a text using a bitmap font. More...
 
virtual void DrawGrid () override
 > More...
 
virtual void ResizeScreen (int aWidth, int aHeight) override
 Resizes the canvas. More...
 
virtual bool Show (bool aShow) override
 Shows/hides the GAL canvas. More...
 
virtual void Flush () override
 Force all remaining objects to be drawn. More...
 
virtual void ClearScreen () override
 Clear the screen. More...
 
virtual void Transform (const MATRIX3x3D &aTransformation) override
 Transform the context. More...
 
virtual void Rotate (double aAngle) override
 Rotate the context. More...
 
virtual void Translate (const VECTOR2D &aTranslation) override
 Translate the context. More...
 
virtual void Scale (const VECTOR2D &aScale) override
 Scale the context. More...
 
virtual void Save () override
 Save the context. More...
 
virtual void Restore () override
 Restore the context. More...
 
virtual int BeginGroup () override
 Begin a group. More...
 
virtual void EndGroup () override
 End the group. More...
 
virtual void DrawGroup (int aGroupNumber) override
 Draw the stored group. More...
 
virtual void ChangeGroupColor (int aGroupNumber, const COLOR4D &aNewColor) override
 Changes the color used to draw the group. More...
 
virtual void ChangeGroupDepth (int aGroupNumber, int aDepth) override
 Changes the depth (Z-axis position) of the group. More...
 
virtual void DeleteGroup (int aGroupNumber) override
 Delete the group from the memory. More...
 
virtual void ClearCache () override
 Delete all data created during caching of graphic items. More...
 
virtual void SaveScreen () override
 Save the screen contents. More...
 
virtual void RestoreScreen () override
 Restore the screen contents. More...
 
virtual void SetTarget (RENDER_TARGET aTarget) override
 Sets the target for rendering. More...
 
virtual RENDER_TARGET GetTarget () const override
 Gets the currently used target for rendering. More...
 
virtual void ClearTarget (RENDER_TARGET aTarget) override
 Clears the target for rendering. More...
 
virtual void SetNegativeDrawMode (bool aSetting) override
 Sets negative draw mode in the renderer. More...
 
virtual void DrawCursor (const VECTOR2D &aCursorPosition) override
 Draw the cursor. More...
 
void PostPaint ()
 Function PostPaint posts an event to m_paint_listener. More...
 
void SetMouseListener (wxEvtHandler *aMouseListener)
 
void SetPaintListener (wxEvtHandler *aPaintListener)
 Parameters passed to the GLU tesselator. More...
 
const VECTOR2IGetScreenPixelSize () const
 Returns GAL canvas size in pixels. More...
 
void SetClearColor (const COLOR4D &aColor)
 
const COLOR4DGetClearColor () const
 
virtual void SetIsFill (bool aIsFillEnabled)
 Enable/disable fill. More...
 
virtual void SetIsStroke (bool aIsStrokeEnabled)
 Enable/disable stroked outlines. More...
 
virtual void SetFillColor (const COLOR4D &aColor)
 Set the fill color. More...
 
virtual void SetStrokeColor (const COLOR4D &aColor)
 Set the stroke color. More...
 
const COLOR4DGetStrokeColor () const
 Get the stroke color. More...
 
virtual void SetLineWidth (double aLineWidth)
 Set the line width. More...
 
double GetLineWidth () const
 Get the line width. More...
 
virtual void SetLayerDepth (double aLayerDepth)
 Set the depth of the layer (position on the z-axis) More...
 
const STROKE_FONTGetStrokeFont () const
 
virtual void StrokeText (const wxString &aText, const VECTOR2D &aPosition, double aRotationAngle)
 Draws a vector type text using preloaded Newstroke font. More...
 
VECTOR2D GetTextLineSize (const UTF8 &aText) const
 Compute the X and Y size of a given text. More...
 
double GetOverbarVerticalPosition () const
 Compute the vertical position of an overbar, sometimes used in texts. More...
 
virtual void SetTextAttributes (const EDA_TEXT *aText)
 Loads attributes of the given text (bold/italic/underline/mirrored and so on). More...
 
void ResetTextAttributes ()
 Reset text attributes to default styling. More...
 
void SetGlyphSize (const VECTOR2D aGlyphSize)
 Set the font glyph size. More...
 
const VECTOR2DGetGlyphSize () const
 
void SetFontBold (const bool aBold)
 Set bold property of current font. More...
 
bool IsFontBold () const
 Returns true if current font has 'bold' attribute enabled. More...
 
void SetFontItalic (const bool aItalic)
 Set italic property of current font. More...
 
bool IsFontItalic () const
 Returns true if current font has 'italic' attribute enabled. More...
 
void SetTextMirrored (const bool aMirrored)
 Set a mirrored property of text. More...
 
bool IsTextMirrored () const
 Returns true if text should displayed mirrored. More...
 
void SetHorizontalJustify (const EDA_TEXT_HJUSTIFY_T aHorizontalJustify)
 Set the horizontal justify for text drawing. More...
 
EDA_TEXT_HJUSTIFY_T GetHorizontalJustify () const
 Returns current text horizontal justification setting. More...
 
void SetVerticalJustify (const EDA_TEXT_VJUSTIFY_T aVerticalJustify)
 Set the vertical justify for text drawing. More...
 
EDA_TEXT_VJUSTIFY_T GetVerticalJustify () const
 Returns current text vertical justification setting. More...
 
virtual void ComputeWorldScreenMatrix ()
 Compute the world <-> screen transformation matrix. More...
 
const MATRIX3x3DGetWorldScreenMatrix () const
 Get the world <-> screen transformation matrix. More...
 
const MATRIX3x3DGetScreenWorldMatrix () const
 Get the screen <-> world transformation matrix. More...
 
void SetWorldScreenMatrix (const MATRIX3x3D &aMatrix)
 Set the world <-> screen transformation matrix. More...
 
void SetWorldUnitLength (double aWorldUnitLength)
 Set the unit length. More...
 
void SetScreenDPI (double aScreenDPI)
 Set the dots per inch of the screen. More...
 
void SetLookAtPoint (const VECTOR2D &aPoint)
 Set the Point in world space to look at. More...
 
const VECTOR2DGetLookAtPoint () const
 Get the look at point. More...
 
void SetZoomFactor (double aZoomFactor)
 Set the zoom factor of the scene. More...
 
double GetZoomFactor () const
 Get the zoom factor. More...
 
void SetDepthRange (const VECTOR2D &aDepthRange)
 Set the range of the layer depth. More...
 
double GetMinDepth () const
 Returns the minimum depth in the currently used range (the top). More...
 
double GetMaxDepth () const
 Returns the maximum depth in the currently used range (the bottom). More...
 
double GetWorldScale () const
 Get the world scale. More...
 
void SetFlip (bool xAxis, bool yAxis)
 Sets flipping of the screen. More...
 
void SetGridVisibility (bool aVisibility)
 Sets the visibility setting of the grid. More...
 
void SetGridOrigin (const VECTOR2D &aGridOrigin)
 Set the origin point for the grid. More...
 
void SetGridSize (const VECTOR2D &aGridSize)
 Set the grid size. More...
 
const VECTOR2DGetGridSize () const
 Returns the grid size. More...
 
void SetGridColor (const COLOR4D &aGridColor)
 Set the grid color. More...
 
void SetAxesColor (const COLOR4D &aAxesColor)
 Set the axes color. More...
 
void SetAxesEnabled (bool aAxesEnabled)
 Enables drawing the axes. More...
 
void SetCoarseGrid (int aInterval)
 Draw every tick line wider. More...
 
double GetGridLineWidth () const
 Get the grid line width. More...
 
VECTOR2D GetGridPoint (const VECTOR2D &aPoint) const
 Function GetGridPoint() For a given point it returns the nearest point belonging to the grid in world coordinates. More...
 
VECTOR2D ToWorld (const VECTOR2D &aPoint) const
 Compute the point position in world coordinates from given screen coordinates. More...
 
VECTOR2D ToScreen (const VECTOR2D &aPoint) const
 Compute the point position in screen coordinates from given world coordinates. More...
 
void SetCursorEnabled (bool aCursorEnabled)
 Enable/disable cursor. More...
 
bool IsCursorEnabled () const
 Returns information about cursor visibility. More...
 
void SetCursorColor (const COLOR4D &aCursorColor)
 Set the cursor color. More...
 
void AdvanceDepth ()
 Changes the current depth to deeper, so it is possible to draw objects right beneath other. More...
 
void PushDepth ()
 Stores current drawing depth on the depth stack. More...
 
void PopDepth ()
 Restores previously stored drawing depth for the depth stack. More...
 

Static Public Attributes

static const double METRIC_UNIT_LENGTH = 1e9
 

Protected Member Functions

void computeWorldScale ()
 Compute the scaling factor for the world->screen matrix. More...
 
double computeMinGridSpacing () const
 compute minimum grid spacing from the grid settings More...
 
virtual void drawGridLine (const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
 Draw a grid line (usually a simplified line function). More...
 
COLOR4D getCursorColor () const
 Gets the actual cursor color to draw. More...
 
void OnGalDisplayOptionsChanged (const GAL_DISPLAY_OPTIONS &aOptions) override
 Handler for observer settings changes. More...
 

Protected Attributes

GAL_DISPLAY_OPTIONSoptions
 
UTIL::LINK observerLink
 
std::stack< double > depthStack
 Stored depth values. More...
 
VECTOR2I screenSize
 Screen size in screen coordinates. More...
 
double worldUnitLength
 The unit length of the world coordinates [inch]. More...
 
double screenDPI
 The dots per inch of the screen. More...
 
VECTOR2D lookAtPoint
 Point to be looked at in world space. More...
 
double zoomFactor
 The zoom factor. More...
 
MATRIX3x3D worldScreenMatrix
 World transformation. More...
 
MATRIX3x3D screenWorldMatrix
 Screen transformation. More...
 
double worldScale
 The scale factor world->screen. More...
 
bool globalFlipX
 Flag for X axis flipping. More...
 
bool globalFlipY
 Flag for Y axis flipping. More...
 
double lineWidth
 The line width. More...
 
bool isFillEnabled
 Is filling of graphic objects enabled ? More...
 
bool isStrokeEnabled
 Are the outlines stroked ? More...
 
COLOR4D fillColor
 The fill color. More...
 
COLOR4D strokeColor
 The color of the outlines. More...
 
COLOR4D m_clearColor
 
double layerDepth
 The actual layer depth. More...
 
VECTOR2D depthRange
 Range of the depth. More...
 
bool gridVisibility
 Should the grid be shown. More...
 
GRID_STYLE gridStyle
 Grid display style. More...
 
VECTOR2D gridSize
 The grid size. More...
 
VECTOR2D gridOrigin
 The grid origin. More...
 
VECTOR2D gridOffset
 The grid offset to compensate cursor position. More...
 
COLOR4D gridColor
 Color of the grid. More...
 
COLOR4D axesColor
 Color of the axes. More...
 
bool axesEnabled
 Should the axes be drawn. More...
 
int gridTick
 Every tick line gets the double width. More...
 
double gridLineWidth
 Line width of the grid. More...
 
int gridMinSpacing
 Minimum screen size of the grid (pixels) below which the grid is not drawn. More...
 
bool isCursorEnabled
 Is the cursor enabled? More...
 
bool forceDisplayCursor
 Always show cursor. More...
 
COLOR4D cursorColor
 Cursor color. More...
 
bool fullscreenCursor
 Shape of the cursor (fullscreen or small cross) More...
 
VECTOR2D cursorPosition
 Current cursor position (world coordinates) More...
 
STROKE_FONT strokeFont
 Instance of object that stores information about how to draw texts. More...
 

Static Protected Attributes

static const int MIN_DEPTH = -1024
 Possible depth range. More...
 
static const int MAX_DEPTH = 1023
 
static const int GRID_DEPTH = MAX_DEPTH - 1
 Depth level on which the grid is drawn. More...
 

Private Types

typedef GAL super
 Super class definition. More...
 
typedef std::unordered_map< unsigned int, std::shared_ptr< VERTEX_ITEM > > GROUPS_MAP
 

Private Member Functions

bool updatedGalDisplayOptions (const GAL_DISPLAY_OPTIONS &aOptions) override
 Function updatedGalDisplayOptions. More...
 
void drawLineQuad (const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
 Draw a quad for the line. More...
 
void drawSemiCircle (const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
 Draw a semicircle. More...
 
void drawFilledSemiCircle (const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
 Draw a filled semicircle. More...
 
void drawStrokedSemiCircle (const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
 Draw a stroked semicircle. More...
 
void drawPolyline (std::function< VECTOR2D(int)> aPointGetter, int aPointCount)
 Generic way of drawing a polyline stored in different containers. More...
 
void drawPolygon (GLdouble *aPoints, int aPointCount)
 Draws a filled polygon. More...
 
int drawBitmapChar (unsigned long aChar)
 Draws a single character using bitmap font. More...
 
void drawBitmapOverbar (double aLength, double aHeight)
 Draws an overbar over the currently drawn text. More...
 
std::pair< VECTOR2D, float > computeBitmapTextSize (const wxString &aText) const
 Computes a size of text drawn using bitmap font with current text setting applied. More...
 
void onPaint (wxPaintEvent &aEvent)
 This is the OnPaint event handler. More...
 
void skipMouseEvent (wxMouseEvent &aEvent)
 Skip the mouse event to the parent. More...
 
void blitCursor ()
 Blits cursor into the current screen. More...
 
unsigned int getNewGroupNumber ()
 Returns a valid key that can be used as a new group number. More...
 
double calcAngleStep (double aRadius) const
 Compute the angle step when drawing arcs/circles approximated with lines. More...
 
void init ()
 Basic OpenGL initialization. More...
 

Private Attributes

wxGLContext * glPrivContext
 Canvas-specific OpenGL context. More...
 
wxEvtHandler * mouseListener
 
wxEvtHandler * paintListener
 
GROUPS_MAP groups
 Stores informations about VBO objects (groups) More...
 
unsigned int groupCounter
 Counter used for generating keys for groups. More...
 
VERTEX_MANAGERcurrentManager
 Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs) More...
 
VERTEX_MANAGERcachedManager
 Container for storing cached VERTEX_ITEMs. More...
 
VERTEX_MANAGERnonCachedManager
 Container for storing non-cached VERTEX_ITEMs. More...
 
VERTEX_MANAGERoverlayManager
 Container for storing overlaid VERTEX_ITEMs. More...
 
OPENGL_COMPOSITORcompositor
 Handles multiple rendering targets. More...
 
unsigned int mainBuffer
 Main rendering target. More...
 
unsigned int overlayBuffer
 Auxiliary rendering target (for menus etc.) More...
 
RENDER_TARGET currentTarget
 Current rendering target. More...
 
bool isFramebufferInitialized
 Are the framebuffers initialized? More...
 
bool isBitmapFontInitialized
 Is the shader set to use bitmap fonts? More...
 
bool isInitialized
 Basic initialization flag, has to be done when the window is visible. More...
 
bool isGrouping
 Was a group started? More...
 
GLUtesselator * tesselator
 The tessellator. More...
 
std::deque< boost::shared_array< GLdouble > > tessIntersects
 Storage for intersecting points. More...
 

Static Private Attributes

static const int CIRCLE_POINTS = 64
 The number of points for circle approximation. More...
 
static const int CURVE_POINTS = 32
 The number of points for curve approximation. More...
 
static wxGLContext * glMainContext = NULL
 Parent OpenGL context. More...
 
static int instanceCounter = 0
 GL GAL instance counter. More...
 
static GLuint fontTexture = 0
 Bitmap font texture handle (shared) More...
 
static SHADERshader = NULL
 There is only one shader used for different objects. More...
 
static bool isBitmapFontLoaded = false
 Is the bitmap font texture loaded? More...
 

Detailed Description

Class OpenGL_GAL is the OpenGL implementation of the Graphics Abstraction Layer.

This is a direct OpenGL-implementation and uses low-level graphics primitives like triangles and quads. The purpose is to provide a fast graphics interface, that takes advantage of modern graphics card GPUs. All methods here benefit thus from the hardware acceleration.

Definition at line 65 of file opengl_gal.h.

Member Typedef Documentation

typedef std::unordered_map< unsigned int, std::shared_ptr<VERTEX_ITEM> > KIGFX::OPENGL_GAL::GROUPS_MAP
private

Definition at line 302 of file opengl_gal.h.

typedef GAL KIGFX::OPENGL_GAL::super
private

Super class definition.

Definition at line 288 of file opengl_gal.h.

Constructor & Destructor Documentation

OPENGL_GAL::OPENGL_GAL ( GAL_DISPLAY_OPTIONS aDisplayOptions,
wxWindow *  aParent,
wxEvtHandler *  aMouseListener = nullptr,
wxEvtHandler *  aPaintListener = nullptr,
const wxString &  aName = wxT( "GLCanvas" ) 
)

Constructor OPENGL_GAL.

Parameters
aParentis the wxWidgets immediate wxWindow parent of this object.
aMouseListeneris the wxEvtHandler that should receive the mouse events, this can be can be any wxWindow, but is often a wxFrame container.
aPaintListeneris the wxEvtHandler that should receive the paint event. This can be any wxWindow, but is often a derived instance of this class or a containing wxFrame. The "paint event" here is a wxCommandEvent holding EVT_GAL_REDRAW, as sent by PostPaint().
aNameis the name of this window for use by wxWindow::FindWindowByName()

Definition at line 66 of file opengl_gal.cpp.

References BLUE, compositor, GL_CONTEXT_MANAGER::CreateCtx(), GL_CONTEXT_MANAGER::Get(), KIGFX::GAL_DISPLAY_OPTIONS::gl_antialiasing_mode, glMainContext, glPrivContext, groupCounter, InitTesselatorCallbacks(), instanceCounter, isBitmapFontInitialized, isFramebufferInitialized, isGrouping, isInitialized, onPaint(), KIGFX::GAL::options, KIGFX::GAL::screenSize, KIGFX::OPENGL_COMPOSITOR::SetAntialiasingMode(), KIGFX::GAL::SetAxesColor(), KIGFX::GAL::SetGridColor(), SetTarget(), shader, skipMouseEvent(), KIGFX::TARGET_NONCACHED, and tesselator.

68  :
69  GAL( aDisplayOptions ),
70  wxGLCanvas( aParent, wxID_ANY, (int*) glAttributes, wxDefaultPosition, wxDefaultSize,
71  wxEXPAND, aName ),
72  mouseListener( aMouseListener ), paintListener( aPaintListener ), currentManager( nullptr ),
73  cachedManager( nullptr ), nonCachedManager( nullptr ), overlayManager( nullptr )
74 {
75  if( glMainContext == NULL )
76  {
79  shader = new SHADER();
80  }
81  else
82  {
84  }
85 
87 
90 
91  // Initialize the flags
94  isInitialized = false;
95  isGrouping = false;
96  groupCounter = 0;
97 
98 #ifdef RETINA_OPENGL_PATCH
99  SetViewWantsBestResolution( true );
100 #endif
101 
102  // Connecting the event handlers
103  Connect( wxEVT_PAINT, wxPaintEventHandler( OPENGL_GAL::onPaint ) );
104 
105  // Mouse events are skipped to the parent
106  Connect( wxEVT_MOTION, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
107  Connect( wxEVT_LEFT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
108  Connect( wxEVT_LEFT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
109  Connect( wxEVT_LEFT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
110  Connect( wxEVT_MIDDLE_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
111  Connect( wxEVT_MIDDLE_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
112  Connect( wxEVT_MIDDLE_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
113  Connect( wxEVT_RIGHT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
114  Connect( wxEVT_RIGHT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
115  Connect( wxEVT_RIGHT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
116  Connect( wxEVT_MOUSEWHEEL, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
117 #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
118  Connect( wxEVT_MAGNIFY, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
119 #endif
120 #if defined _WIN32 || defined _WIN64
121  Connect( wxEVT_ENTER_WINDOW, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
122 #endif
123 
124  SetSize( aParent->GetClientSize() );
125  screenSize = VECTOR2I( aParent->GetClientSize() );
126 
127  // Grid color settings are different in Cairo and OpenGL
128  SetGridColor( COLOR4D( 0.8, 0.8, 0.8, 0.1 ) );
129  SetAxesColor( COLOR4D( BLUE ) );
130 
131  // Tesselator initialization
132  tesselator = gluNewTess();
134 
135  if( tesselator == NULL )
136  throw std::runtime_error( "Could not create the tesselator" );
137 
138  gluTessProperty( tesselator, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_POSITIVE );
139 
141 }
Definition: colors.h:57
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:317
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:293
bool isBitmapFontInitialized
Is the shader set to use bitmap fonts?
Definition: opengl_gal.h:322
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
GAL_DISPLAY_OPTIONS & options
static void InitTesselatorCallbacks(GLUtesselator *aTesselator)
VECTOR2< int > VECTOR2I
Definition: vector2d.h:589
bool isGrouping
Was a group started?
Definition: opengl_gal.h:325
OPENGL_ANTIALIASING_MODE gl_antialiasing_mode
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
Auxiliary rendering target (noncached)
Definition: definitions.h:42
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:295
void SetAntialiasingMode(OPENGL_ANTIALIASING_MODE aMode)
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
GAL(GAL_DISPLAY_OPTIONS &aOptions)
void SetGridColor(const COLOR4D &aGridColor)
Set the grid color.
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
wxEvtHandler * mouseListener
Definition: opengl_gal.h:296
void SetAxesColor(const COLOR4D &aAxesColor)
Set the axes color.
static const int glAttributes[]
Definition: opengl_gal.cpp:57
void onPaint(wxPaintEvent &aEvent)
This is the OnPaint event handler.
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:320
Class SHADER provides the access to the OpenGL shaders.
Definition: shader.h:74
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:332
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
wxEvtHandler * paintListener
Definition: opengl_gal.h:297
virtual void SetTarget(RENDER_TARGET aTarget) override
Sets the target for rendering.
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:304
VECTOR2I screenSize
Screen size in screen coordinates.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
wxGLContext * CreateCtx(wxGLCanvas *aCanvas, const wxGLContext *aOther=NULL)
Function CreateCtx creates a managed OpenGL context.
void skipMouseEvent(wxMouseEvent &aEvent)
Skip the mouse event to the parent.
Class COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:39
OPENGL_GAL::~OPENGL_GAL ( )
virtual

Definition at line 144 of file opengl_gal.cpp.

References cachedManager, ClearCache(), compositor, GL_CONTEXT_MANAGER::DestroyCtx(), fontTexture, GL_CONTEXT_MANAGER::Get(), glMainContext, glPrivContext, instanceCounter, isBitmapFontLoaded, isInitialized, GL_CONTEXT_MANAGER::LockCtx(), nonCachedManager, overlayManager, shader, tesselator, and GL_CONTEXT_MANAGER::UnlockCtx().

145 {
147 
148  --instanceCounter;
149  glFlush();
150  gluDeleteTess( tesselator );
151  ClearCache();
152 
153  delete compositor;
154 
155  if( isInitialized )
156  {
157  delete cachedManager;
158  delete nonCachedManager;
159  delete overlayManager;
160  }
161 
163 
164  // If it was the main context, then it will be deleted
165  // when the last OpenGL GAL instance is destroyed (a few lines below)
168 
169  // Are we destroying the last GAL instance?
170  if( instanceCounter == 0 )
171  {
173 
174  if( isBitmapFontLoaded )
175  {
176  glDeleteTextures( 1, &fontTexture );
177  isBitmapFontLoaded = false;
178  }
179 
180  delete shader;
181 
184  glMainContext = NULL;
185  }
186 }
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:317
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:293
static GLuint fontTexture
Bitmap font texture handle (shared)
Definition: opengl_gal.h:299
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
void UnlockCtx(wxGLContext *aContext)
Function UnlockCtx allows other canvases to bind an OpenGL context.
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:295
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
virtual void ClearCache() override
Delete all data created during caching of graphic items.
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:332
void LockCtx(wxGLContext *aContext, wxGLCanvas *aCanvas)
Function LockCtx sets a context as current and prevents other canvases from switching it...
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
void DestroyCtx(wxGLContext *aContext)
Function DestroyCtx destroys a managed OpenGL context.
static bool isBitmapFontLoaded
Is the bitmap font texture loaded?
Definition: opengl_gal.h:321

Member Function Documentation

void KIGFX::GAL::AdvanceDepth ( )
inlineinherited

Changes the current depth to deeper, so it is possible to draw objects right beneath other.

Definition at line 963 of file graphics_abstraction_layer.h.

References KIGFX::GAL::layerDepth.

964  {
965  layerDepth -= 0.05;
966  }
double layerDepth
The actual layer depth.
void OPENGL_GAL::BeginDrawing ( )
overridevirtual

Begin the drawing, needs to be called for every new frame.

Reimplemented from KIGFX::GAL.

Definition at line 210 of file opengl_gal.cpp.

References KIGFX::SHADER::AddParameter(), KIGFX::OPENGL_COMPOSITOR::Begin(), KIGFX::VERTEX_MANAGER::BeginDrawing(), cachedManager, checkGlError(), KIGFX::VERTEX_MANAGER::Clear(), compositor, KIGFX::GAL::ComputeWorldScreenMatrix(), KIGFX::OPENGL_COMPOSITOR::CreateBuffer(), KIGFX::SHADER::Deactivate(), KIGFX::GAL::depthRange, KIGFX::OPENGL_COMPOSITOR::DIRECT_RENDERING, KIGFX::GAL::fillColor, KIGFX::BUILTIN_FONT::font_image, fontTexture, GL_CONTEXT_MANAGER::Get(), glPrivContext, KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::height, init(), KIGFX::OPENGL_COMPOSITOR::Initialize(), isBitmapFontInitialized, isBitmapFontLoaded, isFramebufferInitialized, isInitialized, GL_CONTEXT_MANAGER::LockCtx(), MATRIX3x3< T >::m_data, mainBuffer, PROF_COUNTER::msecs(), nonCachedManager, overlayBuffer, overlayManager, KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::pixels, KIGFX::GAL::screenSize, KIGFX::OPENGL_COMPOSITOR::SetBuffer(), KIGFX::GAL::SetFillColor(), KIGFX::SHADER::SetParameter(), KIGFX::GAL::SetStrokeColor(), shader, PROF_COUNTER::Stop(), KIGFX::GAL::strokeColor, GL_CONTEXT_MANAGER::UnlockCtx(), KIGFX::SHADER::Use(), KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::width, KIGFX::GAL::worldScreenMatrix, VECTOR2< T >::x, and VECTOR2< T >::y.

211 {
212  if( !IsShownOnScreen() )
213  return;
214 
215 #ifdef __WXDEBUG__
216  PROF_COUNTER totalRealTime( "OPENGL_GAL::BeginDrawing()", true );
217 #endif /* __WXDEBUG__ */
218 
219  if( !isInitialized )
220  init();
221 
223 
224  // Set up the view port
225  glMatrixMode( GL_PROJECTION );
226  glLoadIdentity();
227 
228  // Create the screen transformation (Do the RH-LH conversion here)
229  glOrtho( 0, (GLint) screenSize.x, (GLsizei) screenSize.y, 0, -depthRange.x, -depthRange.y );
230 
232  {
233  try
234  {
235  // Prepare rendering target buffers
239  }
240  catch( std::runtime_error& )
241  {
243  throw; // DRAW_PANEL_GAL will handle it
244  }
245 
247  }
248 
249  compositor->Begin();
250 
251  // Disable 2D Textures
252  glDisable( GL_TEXTURE_2D );
253 
254  glShadeModel( GL_FLAT );
255 
256  // Enable the depth buffer
257  glEnable( GL_DEPTH_TEST );
258  glDepthFunc( GL_LESS );
259 
260  // Setup blending, required for transparent objects
261  glEnable( GL_BLEND );
262  glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
263 
264  glMatrixMode( GL_MODELVIEW );
265 
266  // Set up the world <-> screen transformation
268  GLdouble matrixData[16] = { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 };
269  matrixData[0] = worldScreenMatrix.m_data[0][0];
270  matrixData[1] = worldScreenMatrix.m_data[1][0];
271  matrixData[2] = worldScreenMatrix.m_data[2][0];
272  matrixData[4] = worldScreenMatrix.m_data[0][1];
273  matrixData[5] = worldScreenMatrix.m_data[1][1];
274  matrixData[6] = worldScreenMatrix.m_data[2][1];
275  matrixData[12] = worldScreenMatrix.m_data[0][2];
276  matrixData[13] = worldScreenMatrix.m_data[1][2];
277  matrixData[14] = worldScreenMatrix.m_data[2][2];
278  glLoadMatrixd( matrixData );
279 
280  // Set defaults
283 
284  // Remove all previously stored items
287 
291 
293  {
294  // Keep bitmap font texture always bound to the second texturing unit
295  const GLint FONT_TEXTURE_UNIT = 2;
296 
297  // Either load the font atlas to video memory, or simply bind it to a texture unit
298  if( !isBitmapFontLoaded )
299  {
300  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
301  glGenTextures( 1, &fontTexture );
302  glBindTexture( GL_TEXTURE_2D, fontTexture );
303  glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB8, font_image.width, font_image.height,
304  0, GL_RGB, GL_UNSIGNED_BYTE, font_image.pixels );
305  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
306  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
307  checkGlError( "loading bitmap font" );
308 
309  glActiveTexture( GL_TEXTURE0 );
310 
311  isBitmapFontLoaded = true;
312  }
313  else
314  {
315  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
316  glBindTexture( GL_TEXTURE_2D, fontTexture );
317  glActiveTexture( GL_TEXTURE0 );
318  }
319 
320  // Set shader parameter
321  GLint ufm_fontTexture = shader->AddParameter( "fontTexture" );
322  GLint ufm_fontTextureWidth = shader->AddParameter( "fontTextureWidth" );
323  shader->Use();
324  shader->SetParameter( ufm_fontTexture, (int) FONT_TEXTURE_UNIT );
325  shader->SetParameter( ufm_fontTextureWidth, (int) font_image.width );
326  shader->Deactivate();
327  checkGlError( "setting bitmap font sampler as shader parameter" );
328 
330  }
331 
332  // Something betreen BeginDrawing and EndDrawing seems to depend on
333  // this texture unit being active, but it does not assure it itself.
334  glActiveTexture( GL_TEXTURE0 );
335 
336  // Unbind buffers - set compositor for direct drawing
338 
339 #ifdef __WXDEBUG__
340  totalRealTime.Stop();
341  wxLogTrace( "GAL_PROFILE",
342  wxT( "OPENGL_GAL::BeginDrawing(): %.1f ms" ), totalRealTime.msecs() );
343 #endif /* __WXDEBUG__ */
344 
345  //enableGlDebug( true );
346 }
virtual void SetFillColor(const COLOR4D &aColor)
Set the fill color.
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:317
void Clear() const
Function Clear() removes all the stored vertices from the container.
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:313
virtual void Begin() override
Function Begin() Call this at the beginning of each frame.
bool isBitmapFontInitialized
Is the shader set to use bitmap fonts?
Definition: opengl_gal.h:322
void Use()
Use the shader.
Definition: shader.h:130
void SetParameter(int aParameterNumber, float aValue) const
Set a parameter of the shader.
Definition: shader.cpp:137
static GLuint fontTexture
Bitmap font texture handle (shared)
Definition: opengl_gal.h:299
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
COLOR4D fillColor
The fill color.
VECTOR2D depthRange
Range of the depth.
int checkGlError(const std::string &aInfo, bool aThrow)
Checks if one of recent OpenGL operations has failed.
Definition: utils.cpp:30
static const unsigned int DIRECT_RENDERING
virtual void ComputeWorldScreenMatrix()
Compute the world <-> screen transformation matrix.
The class PROF_COUNTER is a small class to help profiling.
Definition: profile.h:45
void UnlockCtx(wxGLContext *aContext)
Function UnlockCtx allows other canvases to bind an OpenGL context.
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
T m_data[3][3]
Definition: matrix3x3.h:64
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
void init()
Basic OpenGL initialization.
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:312
COLOR4D strokeColor
The color of the outlines.
int AddParameter(const std::string &aParameterName)
Add a parameter to the parameter queue.
Definition: shader.cpp:124
void Deactivate()
Deactivate the shader and use the default OpenGL program.
Definition: shader.h:139
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:320
FONT_IMAGE_TYPE font_image
Definition: gl_resources.cpp:4
unsigned char pixels[1024 *1024 *3]
Definition: gl_resources.h:38
MATRIX3x3D worldScreenMatrix
World transformation.
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
void BeginDrawing() const
Function BeginDrawing() prepares buffers and items to start drawing.
void LockCtx(wxGLContext *aContext, wxGLCanvas *aCanvas)
Function LockCtx sets a context as current and prevents other canvases from switching it...
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
virtual void Initialize() override
Function Reset() performs primary initialiation, necessary to use the object.
virtual void SetStrokeColor(const COLOR4D &aColor)
Set the stroke color.
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
VECTOR2I screenSize
Screen size in screen coordinates.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
virtual unsigned int CreateBuffer() override
Function CreateBuffer() prepares a new buffer that may be used as a rendering target.
static bool isBitmapFontLoaded
Is the bitmap font texture loaded?
Definition: opengl_gal.h:321
int OPENGL_GAL::BeginGroup ( )
overridevirtual

Begin a group.

A group is a collection of graphic items. Hierarchical groups are possible, attributes and transformations can be used.

Returns
the number of the group.

Reimplemented from KIGFX::GAL.

Definition at line 1208 of file opengl_gal.cpp.

References getNewGroupNumber(), groups, and isGrouping.

1209 {
1210  isGrouping = true;
1211 
1212  std::shared_ptr<VERTEX_ITEM> newItem = std::make_shared<VERTEX_ITEM>( *cachedManager );
1213  int groupNumber = getNewGroupNumber();
1214  groups.insert( std::make_pair( groupNumber, newItem ) );
1215 
1216  return groupNumber;
1217 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:325
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
unsigned int getNewGroupNumber()
Returns a valid key that can be used as a new group number.
void OPENGL_GAL::BeginUpdate ( )
overridevirtual

Enables item update mode.

Reimplemented from KIGFX::GAL.

Definition at line 383 of file opengl_gal.cpp.

References cachedManager, GL_CONTEXT_MANAGER::Get(), glPrivContext, init(), isInitialized, GL_CONTEXT_MANAGER::LockCtx(), and KIGFX::VERTEX_MANAGER::Map().

384 {
385  if( !IsShownOnScreen() )
386  return;
387 
388  if( !isInitialized )
389  init();
390 
392  cachedManager->Map();
393 }
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
void init()
Basic OpenGL initialization.
void Map()
Function Map() maps vertex buffer.
void LockCtx(wxGLContext *aContext, wxGLCanvas *aCanvas)
Function LockCtx sets a context as current and prevents other canvases from switching it...
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
void OPENGL_GAL::BitmapText ( const wxString &  aText,
const VECTOR2D aPosition,
double  aRotationAngle 
)
overridevirtual

Draws a text using a bitmap font.

It should be faster than StrokeText(), but can be used only for non-Gerber elements.

Parameters
aTextis the text to be drawn.
aPositionis the text position in world coordinates.
aRotationAngleis the text rotation angle.

Reimplemented from KIGFX::GAL.

Definition at line 834 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), computeBitmapTextSize(), currentManager, drawBitmapChar(), drawBitmapOverbar(), KIGFX::COLOR4D::g, KIGFX::GAL::GetGlyphSize(), KIGFX::GAL::GetHorizontalJustify(), KIGFX::GAL::GetVerticalJustify(), KIGFX::GAL::globalFlipX, KIGFX::GAL::globalFlipY, GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_HJUSTIFY_LEFT, GR_TEXT_HJUSTIFY_RIGHT, GR_TEXT_VJUSTIFY_BOTTOM, GR_TEXT_VJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_TOP, KIGFX::GAL::IsTextMirrored(), KIGFX::GAL::layerDepth, KIGFX::BUILTIN_FONT::LookupGlyph(), KIGFX::COLOR4D::r, Restore(), KIGFX::VERTEX_MANAGER::Rotate(), Save(), KIGFX::VERTEX_MANAGER::Scale(), KIGFX::GAL::strokeColor, KIGFX::VERTEX_MANAGER::Translate(), Translate(), VECTOR2< T >::x, and VECTOR2< T >::y.

836 {
837  wxASSERT_MSG( !IsTextMirrored(), "No support for mirrored text using bitmap fonts." );
838 
839  // Compute text size, so it can be properly justified
840  VECTOR2D textSize;
841  float commonOffset;
842  std::tie( textSize, commonOffset ) = computeBitmapTextSize( aText );
843 
844  const double SCALE = GetGlyphSize().y / textSize.y;
845  int tildas = 0;
846  bool overbar = false;
847 
848  int overbarLength = 0;
849  double overbarHeight = textSize.y;
850 
851  Save();
852 
854  currentManager->Translate( aPosition.x, aPosition.y, layerDepth );
855  currentManager->Rotate( aRotationAngle, 0.0f, 0.0f, -1.0f );
856 
857  double sx = SCALE * ( globalFlipX ? -1.0 : 1.0 );
858  double sy = SCALE * ( globalFlipY ? -1.0 : 1.0 );
859 
860  currentManager->Scale( sx, sy, 0 );
861  currentManager->Translate( 0, -commonOffset, 0 );
862 
863  switch( GetHorizontalJustify() )
864  {
866  Translate( VECTOR2D( -textSize.x / 2.0, 0 ) );
867  break;
868 
870  //if( !IsTextMirrored() )
871  Translate( VECTOR2D( -textSize.x, 0 ) );
872  break;
873 
875  //if( IsTextMirrored() )
876  //Translate( VECTOR2D( -textSize.x, 0 ) );
877  break;
878  }
879 
880  switch( GetVerticalJustify() )
881  {
883  Translate( VECTOR2D( 0, -textSize.y ) );
884  overbarHeight = -textSize.y / 2.0;
885  break;
886 
888  Translate( VECTOR2D( 0, -textSize.y / 2.0 ) );
889  overbarHeight = 0;
890  break;
891 
893  break;
894  }
895 
896  for( unsigned int ii = 0; ii < aText.length(); ++ii )
897  {
898  unsigned int c = aText[ii];
899 
900  wxASSERT_MSG( LookupGlyph(c) != nullptr, wxT( "Missing character in bitmap font atlas." ) );
901  wxASSERT_MSG( c != '\n' && c != '\r', wxT( "No support for multiline bitmap text yet" ) );
902 
903  // Handle overbar
904  if( c == '~' )
905  {
906  overbar = !overbar;
907  ++tildas;
908  continue;
909  }
910  else if( tildas > 0 )
911  {
912  if( tildas % 2 == 1 )
913  {
914  if( overbar ) // Overbar begins
915  overbarLength = 0;
916  else if( overbarLength > 0 ) // Overbar finishes
917  drawBitmapOverbar( overbarLength, overbarHeight );
918 
919  --tildas;
920  }
921 
922  // Draw tilda characters if there are any remaining
923  for( int jj = 0; jj < tildas / 2; ++jj )
924  overbarLength += drawBitmapChar( '~' );
925 
926  tildas = 0;
927  }
928 
929  overbarLength += drawBitmapChar( c );
930  }
931 
932  // Handle the case when overbar is active till the end of the drawn text
933  currentManager->Translate( 0, commonOffset, 0 );
934 
935  if( overbar )
936  drawBitmapOverbar( overbarLength, overbarHeight );
937 
938  Restore();
939 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
EDA_TEXT_HJUSTIFY_T GetHorizontalJustify() const
Returns current text horizontal justification setting.
EDA_TEXT_VJUSTIFY_T GetVerticalJustify() const
Returns current text vertical justification setting.
double layerDepth
The actual layer depth.
virtual void Translate(const VECTOR2D &aTranslation) override
Translate the context.
virtual void Restore() override
Restore the context.
void Rotate(GLfloat aAngle, GLfloat aX, GLfloat aY, GLfloat aZ)
Function Rotate() multiplies the current matrix by a rotation matrix, so the newly vertices will be r...
double g
Green component.
Definition: color4d.h:287
bool globalFlipX
Flag for X axis flipping.
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
double b
Blue component.
Definition: color4d.h:288
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:289
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
COLOR4D strokeColor
The color of the outlines.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
const VECTOR2D & GetGlyphSize() const
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
bool globalFlipY
Flag for Y axis flipping.
int drawBitmapChar(unsigned long aChar)
Draws a single character using bitmap font.
void Scale(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Scale() multiplies the current matrix by a scaling matrix, so the newly vertices will be sca...
std::pair< VECTOR2D, float > computeBitmapTextSize(const wxString &aText) const
Computes a size of text drawn using bitmap font with current text setting applied.
double r
Red component.
Definition: color4d.h:286
bool IsTextMirrored() const
Returns true if text should displayed mirrored.
void drawBitmapOverbar(double aLength, double aHeight)
Draws an overbar over the currently drawn text.
void OPENGL_GAL::blitCursor ( )
private

Blits cursor into the current screen.

Definition at line 1691 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, color, compositor, KIGFX::GAL::cursorPosition, KIGFX::OPENGL_COMPOSITOR::DIRECT_RENDERING, KIGFX::GAL::fullscreenCursor, KIGFX::COLOR4D::g, KIGFX::GAL::getCursorColor(), KIGFX::GAL::IsCursorEnabled(), KIGFX::COLOR4D::r, KIGFX::OPENGL_COMPOSITOR::SetBuffer(), KIGFX::GAL::worldScale, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by EndDrawing().

1692 {
1693  if( !IsCursorEnabled() )
1694  return;
1695 
1697 
1698  const int cursorSize = fullscreenCursor ? 8000 : 80;
1699 
1700  VECTOR2D cursorBegin = cursorPosition - cursorSize / ( 2 * worldScale );
1701  VECTOR2D cursorEnd = cursorPosition + cursorSize / ( 2 * worldScale );
1702  VECTOR2D cursorCenter = ( cursorBegin + cursorEnd ) / 2;
1703 
1704  const COLOR4D cColor = getCursorColor();
1705  const COLOR4D color( cColor.r * cColor.a, cColor.g * cColor.a,
1706  cColor.b * cColor.a, 1.0 );
1707 
1708  glActiveTexture( GL_TEXTURE0 );
1709  glDisable( GL_TEXTURE_2D );
1710  glLineWidth( 1.0 );
1711  glColor4d( color.r, color.g, color.b, color.a );
1712 
1713  glBegin( GL_LINES );
1714  glVertex2d( cursorCenter.x, cursorBegin.y );
1715  glVertex2d( cursorCenter.x, cursorEnd.y );
1716 
1717  glVertex2d( cursorBegin.x, cursorCenter.y );
1718  glVertex2d( cursorEnd.x, cursorCenter.y );
1719  glEnd();
1720 }
bool IsCursorEnabled() const
Returns information about cursor visibility.
VECTOR2D cursorPosition
Current cursor position (world coordinates)
double g
Green component.
Definition: color4d.h:287
static const unsigned int DIRECT_RENDERING
double b
Blue component.
Definition: color4d.h:288
double a
Alpha component.
Definition: color4d.h:289
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
bool fullscreenCursor
Shape of the cursor (fullscreen or small cross)
COLOR4D getCursorColor() const
Gets the actual cursor color to draw.
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
double worldScale
The scale factor world->screen.
double r
Red component.
Definition: color4d.h:286
Class COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:39
double KIGFX::OPENGL_GAL::calcAngleStep ( double  aRadius) const
inlineprivate

Compute the angle step when drawing arcs/circles approximated with lines.

Definition at line 449 of file opengl_gal.h.

References min.

Referenced by DrawArc(), and DrawArcSegment().

450  {
451  // Bigger arcs need smaller alpha increment to make them look smooth
452  return std::min( 1e6 / aRadius, 2.0 * M_PI / CIRCLE_POINTS );
453  }
CIRCLE_POINTS
#define min(a, b)
Definition: auxiliary.h:85
void OPENGL_GAL::ChangeGroupColor ( int  aGroupNumber,
const COLOR4D aNewColor 
)
overridevirtual

Changes the color used to draw the group.

Parameters
aGroupNumberis the group number.
aNewColoris the new color.

Reimplemented from KIGFX::GAL.

Definition at line 1233 of file opengl_gal.cpp.

References cachedManager, KIGFX::VERTEX_MANAGER::ChangeItemColor(), and groups.

1234 {
1235  cachedManager->ChangeItemColor( *groups[aGroupNumber], aNewColor );
1236 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
void ChangeItemColor(const VERTEX_ITEM &aItem, const COLOR4D &aColor) const
Function ChangeItemColor() changes the color of all vertices owned by an item.
void OPENGL_GAL::ChangeGroupDepth ( int  aGroupNumber,
int  aDepth 
)
overridevirtual

Changes the depth (Z-axis position) of the group.

Parameters
aGroupNumberis the group number.
aDepthis the new depth.

Reimplemented from KIGFX::GAL.

Definition at line 1239 of file opengl_gal.cpp.

References cachedManager, KIGFX::VERTEX_MANAGER::ChangeItemDepth(), and groups.

1240 {
1241  cachedManager->ChangeItemDepth( *groups[aGroupNumber], aDepth );
1242 }
void ChangeItemDepth(const VERTEX_ITEM &aItem, GLfloat aDepth) const
Function ChangeItemDepth() changes the depth of all vertices owned by an item.
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
void OPENGL_GAL::ClearCache ( )
overridevirtual

Delete all data created during caching of graphic items.

Reimplemented from KIGFX::GAL.

Definition at line 1252 of file opengl_gal.cpp.

References cachedManager, KIGFX::VERTEX_MANAGER::Clear(), groups, and isInitialized.

Referenced by ~OPENGL_GAL().

1253 {
1254  groups.clear();
1255 
1256  if( isInitialized )
1257  cachedManager->Clear();
1258 }
void Clear() const
Function Clear() removes all the stored vertices from the container.
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
void OPENGL_GAL::ClearScreen ( )
overridevirtual

Clear the screen.

Parameters
aColoris the color used for clearing.

Reimplemented from KIGFX::GAL.

Definition at line 1151 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, compositor, KIGFX::OPENGL_COMPOSITOR::DIRECT_RENDERING, KIGFX::COLOR4D::g, KIGFX::GAL::m_clearColor, KIGFX::COLOR4D::r, and KIGFX::OPENGL_COMPOSITOR::SetBuffer().

1152 {
1153  // Clear screen
1155  glClearColor( m_clearColor.r, m_clearColor.g, m_clearColor.b, m_clearColor.a );
1156  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
1157 }
double g
Green component.
Definition: color4d.h:287
static const unsigned int DIRECT_RENDERING
double b
Blue component.
Definition: color4d.h:288
double a
Alpha component.
Definition: color4d.h:289
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::ClearTarget ( RENDER_TARGET  aTarget)
overridevirtual

Clears the target for rendering.

Parameters
aTargetis the target to be cleared.

Reimplemented from KIGFX::GAL.

Definition at line 1301 of file opengl_gal.cpp.

References KIGFX::COLOR4D::BLACK, KIGFX::OPENGL_COMPOSITOR::ClearBuffer(), compositor, KIGFX::OPENGL_COMPOSITOR::GetBuffer(), KIGFX::GAL::m_clearColor, mainBuffer, overlayBuffer, KIGFX::OPENGL_COMPOSITOR::SetBuffer(), KIGFX::TARGET_CACHED, KIGFX::TARGET_NONCACHED, and KIGFX::TARGET_OVERLAY.

1302 {
1303  // Save the current state
1304  unsigned int oldTarget = compositor->GetBuffer();
1305 
1306  switch( aTarget )
1307  {
1308  // Cached and noncached items are rendered to the same buffer
1309  default:
1310  case TARGET_CACHED:
1311  case TARGET_NONCACHED:
1313  break;
1314 
1315  case TARGET_OVERLAY:
1317  break;
1318  }
1319 
1320 
1321  if( aTarget != TARGET_OVERLAY )
1323  else
1325 
1326  // Restore the previous state
1327  compositor->SetBuffer( oldTarget );
1328 }
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:313
static const COLOR4D BLACK
Definition: color4d.h:296
Auxiliary rendering target (noncached)
Definition: definitions.h:42
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:312
virtual void ClearBuffer(const COLOR4D &aColor) override
Function ClearBuffer() clears the selected buffer (set by the SetBuffer() function).
Items that may change while the view stays the same (noncached)
Definition: definitions.h:43
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
Main rendering target (cached)
Definition: definitions.h:41
virtual unsigned int GetBuffer() const override
Function GetBuffer() returns currently used buffer handle.
std::pair< VECTOR2D, float > OPENGL_GAL::computeBitmapTextSize ( const wxString &  aText) const
private

Computes a size of text drawn using bitmap font with current text setting applied.

Parameters
aTextis the text to be drawn.
Returns
Pair containing text bounding box and common Y axis offset. The values are expressed as a number of pixels on the bitmap font texture and need to be scaled before drawing.

Definition at line 1624 of file opengl_gal.cpp.

References KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::advance, KIGFX::BUILTIN_FONT::font_information, KIGFX::BUILTIN_FONT::LookupGlyph(), max, KIGFX::BUILTIN_FONT::FONT_INFO_TYPE::max_y, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::maxy, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::miny, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by BitmapText().

1625 {
1626  VECTOR2D textSize( 0, 0 );
1627  float commonOffset = std::numeric_limits<float>::max();
1628  bool wasTilda = false;
1629 
1630  for( unsigned int i = 0; i < aText.length(); ++i )
1631  {
1632  // Remove overbar control characters
1633  if( aText[i] == '~' )
1634  {
1635  if( !wasTilda )
1636  {
1637  // Only double tildas are counted as characters, so skip it as it might
1638  // be an overbar control character
1639  wasTilda = true;
1640  continue;
1641  }
1642  else
1643  {
1644  // Double tilda detected, reset the state and process as a normal character
1645  wasTilda = false;
1646  }
1647  }
1648 
1649  unsigned int c = aText[i];
1650 
1651  const FONT_GLYPH_TYPE* glyph = LookupGlyph( c );
1652  wxASSERT( glyph );
1653 
1654  // a few chars
1655  if( !glyph || // Not coded in font
1656  c == '-' || c == '_' ) // Strange size of these 2 chars
1657  {
1658  c = 'x'; // For calculation of the char size, replace by a medium sized char
1659  glyph = LookupGlyph( c );
1660  }
1661 
1662 
1663  if( glyph )
1664  {
1665  textSize.x += glyph->advance;
1666  textSize.y = std::max<float>( textSize.y, font_information.max_y - glyph->miny );
1667  commonOffset = std::min<float>( font_information.max_y - glyph->maxy, commonOffset );
1668  }
1669  }
1670 
1671  textSize.y -= commonOffset;
1672 
1673  return std::make_pair( textSize, commonOffset );
1674 }
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
FONT_INFO_TYPE font_information
Definition: gl_resources.cpp:3
#define max(a, b)
Definition: auxiliary.h:86
double GAL::computeMinGridSpacing ( ) const
protectedinherited

compute minimum grid spacing from the grid settings

Returns
the minimum spacing to use for drawing the grid

Definition at line 205 of file graphics_abstraction_layer.cpp.

References KIGFX::GAL::gridMinSpacing.

Referenced by DrawGrid(), and KIGFX::GAL::DrawGrid().

206 {
207  // just return the current value. This could be cleverer and take
208  // into account other settings in future
209  return gridMinSpacing;
210 }
int gridMinSpacing
Minimum screen size of the grid (pixels) below which the grid is not drawn.
void KIGFX::GAL::computeWorldScale ( )
inlineprotectedinherited

Compute the scaling factor for the world->screen matrix.

Definition at line 1044 of file graphics_abstraction_layer.h.

References KIGFX::GAL::zoomFactor.

Referenced by KIGFX::GAL::ComputeWorldScreenMatrix(), and KIGFX::GAL::GAL().

1045  {
1047  }
double zoomFactor
The zoom factor.
double worldUnitLength
The unit length of the world coordinates [inch].
double worldScale
The scale factor world->screen.
double screenDPI
The dots per inch of the screen.
void GAL::ComputeWorldScreenMatrix ( )
virtualinherited

Compute the world <-> screen transformation matrix.

Definition at line 177 of file graphics_abstraction_layer.cpp.

References KIGFX::GAL::computeWorldScale(), KIGFX::GAL::globalFlipX, KIGFX::GAL::globalFlipY, MATRIX3x3< T >::Inverse(), KIGFX::GAL::lookAtPoint, scale, KIGFX::GAL::screenSize, KIGFX::GAL::screenWorldMatrix, MATRIX3x3< T >::SetIdentity(), MATRIX3x3< T >::SetScale(), MATRIX3x3< T >::SetTranslation(), KIGFX::GAL::worldScale, and KIGFX::GAL::worldScreenMatrix.

Referenced by BeginDrawing(), KIGFX::CAIRO_GAL::initSurface(), KIGFX::VIEW::SetCenter(), and KIGFX::VIEW::SetScale().

178 {
180 
182 
183  MATRIX3x3D translation;
184  translation.SetIdentity();
185  translation.SetTranslation( 0.5 * VECTOR2D( screenSize ) );
186 
188  scale.SetIdentity();
189  scale.SetScale( VECTOR2D( worldScale, worldScale ) );
190 
191  MATRIX3x3D flip;
192 
193  flip.SetIdentity();
194  flip.SetScale( VECTOR2D( globalFlipX ? -1.0 : 1.0, globalFlipY ? -1.0 : 1.0 ) );
195 
196  MATRIX3x3D lookat;
197  lookat.SetIdentity();
198  lookat.SetTranslation( -lookAtPoint );
199 
200  worldScreenMatrix = translation * flip * scale * lookat * worldScreenMatrix;
201  screenWorldMatrix = worldScreenMatrix.Inverse();
202 }
MATRIX3x3 Inverse() const
Determine the inverse of the matrix.
Definition: matrix3x3.h:343
MATRIX3x3D screenWorldMatrix
Screen transformation.
bool globalFlipX
Flag for X axis flipping.
void SetIdentity()
Set the matrix to the identity matrix.
Definition: matrix3x3.h:214
VECTOR2D lookAtPoint
Point to be looked at in world space.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
MATRIX3x3D worldScreenMatrix
World transformation.
void computeWorldScale()
Compute the scaling factor for the world->screen matrix.
const int scale
void SetScale(VECTOR2< T > aScale)
Set the scale components of the matrix.
Definition: matrix3x3.h:261
bool globalFlipY
Flag for Y axis flipping.
double worldScale
The scale factor world->screen.
VECTOR2I screenSize
Screen size in screen coordinates.
void SetTranslation(VECTOR2< T > aTranslation)
Set the translation components of the matrix.
Definition: matrix3x3.h:230
void OPENGL_GAL::DeleteGroup ( int  aGroupNumber)
overridevirtual

Delete the group from the memory.

Parameters
aGroupNumberis the group number.

Reimplemented from KIGFX::GAL.

Definition at line 1245 of file opengl_gal.cpp.

References groups.

1246 {
1247  // Frees memory in the container as well
1248  groups.erase( aGroupNumber );
1249 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
void OPENGL_GAL::DrawArc ( const VECTOR2D aCenterPoint,
double  aRadius,
double  aStartAngle,
double  aEndAngle 
)
overridevirtual

Draw an arc.

Parameters
aCenterPointis the center point of the arc.
aRadiusis the arc radius.
aStartAngleis the start angle of the arc.
aEndAngleis the end angle of the arc.

Reimplemented from KIGFX::GAL.

Definition at line 529 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, calcAngleStep(), KIGFX::VERTEX_MANAGER::Color(), currentManager, DrawLine(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::GAL::isStrokeEnabled, KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Reserve(), Restore(), Save(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_NONE, KIGFX::GAL::strokeColor, SWAP, KIGFX::VERTEX_MANAGER::Translate(), KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

531 {
532  if( aRadius <= 0 )
533  return;
534 
535  // Swap the angles, if start angle is greater than end angle
536  SWAP( aStartAngle, >, aEndAngle );
537 
538  const double alphaIncrement = calcAngleStep( aRadius );
539 
540  Save();
541  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
542 
543  if( isStrokeEnabled )
544  {
546 
547  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
548  double alpha;
549 
550  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
551  {
552  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
553  DrawLine( p, p_next );
554 
555  p = p_next;
556  }
557 
558  // Draw the last missing part
559  if( alpha != aEndAngle )
560  {
561  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
562  DrawLine( p, p_last );
563  }
564  }
565 
566  if( isFillEnabled )
567  {
568  double alpha;
571 
572  // Triangle fan
573  for( alpha = aStartAngle; ( alpha + alphaIncrement ) < aEndAngle; )
574  {
575  currentManager->Reserve( 3 );
576  currentManager->Vertex( 0.0, 0.0, 0.0 );
577  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
578  alpha += alphaIncrement;
579  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
580  }
581 
582  // The last missing triangle
583  const VECTOR2D endPoint( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
584 
585  currentManager->Reserve( 3 );
586  currentManager->Vertex( 0.0, 0.0, 0.0 );
587  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
588  currentManager->Vertex( endPoint.x, endPoint.y, 0.0 );
589  }
590 
591  Restore();
592 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:449
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
virtual void Restore() override
Restore the context.
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:289
bool isStrokeEnabled
Are the outlines stroked ?
COLOR4D strokeColor
The color of the outlines.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
virtual void DrawLine(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint) override
Draw a line.
Definition: opengl_gal.cpp:406
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
bool isFillEnabled
Is filling of graphic objects enabled ?
#define SWAP(varA, condition, varB)
Swap the variables if a condition is met.
Definition: definitions.h:31
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::DrawArcSegment ( const VECTOR2D aCenterPoint,
double  aRadius,
double  aStartAngle,
double  aEndAngle,
double  aWidth 
)
overridevirtual

Draw an arc segment.

This method differs from DrawArc() in what happens when fill/stroke are on or off. DrawArc() draws a "pie piece" when fill is turned on, and a thick stroke when fill is off. DrawArcSegment() with fill on behaves like DrawArc() with fill off. DrawArcSegment() with fill off draws the outline of what it would have drawn with fill on.

Parameters
aCenterPointis the center point of the arc.
aRadiusis the arc radius.
aStartAngleis the start angle of the arc.
aEndAngleis the end angle of the arc.
aWidthis the thickness of the arc (pen size).

Reimplemented from KIGFX::GAL.

Definition at line 595 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, calcAngleStep(), KIGFX::VERTEX_MANAGER::Color(), currentManager, DrawLine(), drawStrokedSemiCircle(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::GAL::isStrokeEnabled, KIGFX::COLOR4D::r, Restore(), Save(), KIGFX::GAL::SetLineWidth(), KIGFX::GAL::strokeColor, SWAP, KIGFX::VERTEX_MANAGER::Translate(), VECTOR2< T >::x, and VECTOR2< T >::y.

597 {
598  if( aRadius <= 0 )
599  return;
600 
601  // Swap the angles, if start angle is greater than end angle
602  SWAP( aStartAngle, >, aEndAngle );
603 
604  const double alphaIncrement = calcAngleStep( aRadius );
605 
606  Save();
607  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
608 
609  if( isStrokeEnabled )
610  {
612 
613  double width = aWidth / 2.0;
614  VECTOR2D startPoint( cos( aStartAngle ) * aRadius,
615  sin( aStartAngle ) * aRadius );
616  VECTOR2D endPoint( cos( aEndAngle ) * aRadius,
617  sin( aEndAngle ) * aRadius );
618 
619  drawStrokedSemiCircle( startPoint, width, aStartAngle + M_PI );
620  drawStrokedSemiCircle( endPoint, width, aEndAngle );
621 
622  VECTOR2D pOuter( cos( aStartAngle ) * ( aRadius + width ),
623  sin( aStartAngle ) * ( aRadius + width ) );
624 
625  VECTOR2D pInner( cos( aStartAngle ) * ( aRadius - width ),
626  sin( aStartAngle ) * ( aRadius - width ) );
627 
628  double alpha;
629 
630  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
631  {
632  VECTOR2D pNextOuter( cos( alpha ) * ( aRadius + width ),
633  sin( alpha ) * ( aRadius + width ) );
634  VECTOR2D pNextInner( cos( alpha ) * ( aRadius - width ),
635  sin( alpha ) * ( aRadius - width ) );
636 
637  DrawLine( pOuter, pNextOuter );
638  DrawLine( pInner, pNextInner );
639 
640  pOuter = pNextOuter;
641  pInner = pNextInner;
642  }
643 
644  // Draw the last missing part
645  if( alpha != aEndAngle )
646  {
647  VECTOR2D pLastOuter( cos( aEndAngle ) * ( aRadius + width ),
648  sin( aEndAngle ) * ( aRadius + width ) );
649  VECTOR2D pLastInner( cos( aEndAngle ) * ( aRadius - width ),
650  sin( aEndAngle ) * ( aRadius - width ) );
651 
652  DrawLine( pOuter, pLastOuter );
653  DrawLine( pInner, pLastInner );
654  }
655  }
656 
657  if( isFillEnabled )
658  {
660  SetLineWidth( aWidth );
661 
662  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
663  double alpha;
664 
665  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
666  {
667  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
668  DrawLine( p, p_next );
669 
670  p = p_next;
671  }
672 
673  // Draw the last missing part
674  if( alpha != aEndAngle )
675  {
676  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
677  DrawLine( p, p_last );
678  }
679  }
680 
681  Restore();
682 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:449
virtual void Restore() override
Restore the context.
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:289
virtual void SetLineWidth(double aLineWidth)
Set the line width.
bool isStrokeEnabled
Are the outlines stroked ?
COLOR4D strokeColor
The color of the outlines.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
virtual void DrawLine(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint) override
Draw a line.
Definition: opengl_gal.cpp:406
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
void drawStrokedSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a stroked semicircle.
bool isFillEnabled
Is filling of graphic objects enabled ?
#define SWAP(varA, condition, varB)
Swap the variables if a condition is met.
Definition: definitions.h:31
double r
Red component.
Definition: color4d.h:286
int OPENGL_GAL::drawBitmapChar ( unsigned long  aChar)
private

Draws a single character using bitmap font.

Its main purpose is to be used in BitmapText() function.

Parameters
aCharis the character to be drawn.
Returns
Width of the drawn glyph.

Definition at line 1535 of file opengl_gal.cpp.

References KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::advance, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::atlas_h, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::atlas_w, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::atlas_x, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::atlas_y, currentManager, KIGFX::BUILTIN_FONT::font_image, KIGFX::BUILTIN_FONT::font_information, KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::height, KIGFX::BUILTIN_FONT::LookupGlyph(), KIGFX::BUILTIN_FONT::FONT_INFO_TYPE::max_y, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::maxy, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::minx, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::miny, KIGFX::VERTEX_MANAGER::Reserve(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_FONT, KIGFX::BUILTIN_FONT::FONT_INFO_TYPE::smooth_pixels, Translate(), KIGFX::VERTEX_MANAGER::Vertex(), and KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::width.

Referenced by BitmapText().

1536 {
1537  const float TEX_X = font_image.width;
1538  const float TEX_Y = font_image.height;
1539 
1540  const FONT_GLYPH_TYPE* glyph = LookupGlyph(aChar);
1541  wxASSERT( glyph );
1542 
1543  if( !glyph ) return 0;
1544 
1545  const float X = glyph->atlas_x + font_information.smooth_pixels;
1546  const float Y = glyph->atlas_y + font_information.smooth_pixels;
1547  const float XOFF = glyph->minx;
1548 
1549  // adjust for height rounding
1550  const float round_adjust = ( glyph->maxy - glyph->miny )
1551  - float( glyph->atlas_h - font_information.smooth_pixels * 2 );
1552  const float top_adjust = font_information.max_y - glyph->maxy;
1553  const float YOFF = round_adjust + top_adjust;
1554  const float W = glyph->atlas_w - font_information.smooth_pixels *2;
1555  const float H = glyph->atlas_h - font_information.smooth_pixels *2;
1556  const float B = 0;
1557 
1558  currentManager->Reserve( 6 );
1559  Translate( VECTOR2D( XOFF, YOFF ) );
1560  /* Glyph:
1561  * v0 v1
1562  * +--+
1563  * | /|
1564  * |/ |
1565  * +--+
1566  * v2 v3
1567  */
1568  currentManager->Shader( SHADER_FONT, X / TEX_X, ( Y + H ) / TEX_Y );
1569  currentManager->Vertex( -B, -B, 0 ); // v0
1570 
1571  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1572  currentManager->Vertex( W + B, -B, 0 ); // v1
1573 
1574  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1575  currentManager->Vertex( -B, H + B, 0 ); // v2
1576 
1577 
1578  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1579  currentManager->Vertex( W + B, -B, 0 ); // v1
1580 
1581  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1582  currentManager->Vertex( -B, H + B, 0 ); // v2
1583 
1584  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, Y / TEX_Y );
1585  currentManager->Vertex( W + B, H + B, 0 ); // v3
1586 
1587  Translate( VECTOR2D( -XOFF + glyph->advance, -YOFF ) );
1588 
1589  return glyph->advance;
1590 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
virtual void Translate(const VECTOR2D &aTranslation) override
Translate the context.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
FONT_IMAGE_TYPE font_image
Definition: gl_resources.cpp:4
FONT_INFO_TYPE font_information
Definition: gl_resources.cpp:3
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
void OPENGL_GAL::drawBitmapOverbar ( double  aLength,
double  aHeight 
)
private

Draws an overbar over the currently drawn text.

Its main purpose is to be used in BitmapText() function. This method requires appropriate scaling to be applied (as is done in BitmapText() function). The current X coordinate will be the overbar ending.

Parameters
aLengthis the width of the overbar.
aHeightis the height for the overbar.

Definition at line 1593 of file opengl_gal.cpp.

References KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, KIGFX::COLOR4D::g, KIGFX::BUILTIN_FONT::LookupGlyph(), KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::maxy, KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::miny, KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Reserve(), Restore(), Save(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::GAL::strokeColor, Translate(), and KIGFX::VERTEX_MANAGER::Vertex().

Referenced by BitmapText().

1594 {
1595  // To draw an overbar, simply draw an overbar
1596  const FONT_GLYPH_TYPE* glyph = LookupGlyph( '_' );
1597  wxASSERT( glyph );
1598 
1599  if( !glyph )
1600  return;
1601 
1602  const float H = glyph->maxy - glyph->miny;
1603 
1604  Save();
1605 
1606  Translate( VECTOR2D( -aLength, -aHeight-1.5*H ) );
1607 
1608  currentManager->Reserve( 6 );
1610 
1611  currentManager->Shader( 0 );
1612 
1613  currentManager->Vertex( 0, 0, 0 ); // v0
1614  currentManager->Vertex( aLength, 0, 0 ); // v1
1615  currentManager->Vertex( 0, H, 0 ); // v2
1616 
1617  currentManager->Vertex( aLength, 0, 0 ); // v1
1618  currentManager->Vertex( 0, H, 0 ); // v2
1619  currentManager->Vertex( aLength, H, 0 ); // v3
1620 
1621  Restore();
1622 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
virtual void Translate(const VECTOR2D &aTranslation) override
Translate the context.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
virtual void Restore() override
Restore the context.
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
double g
Green component.
Definition: color4d.h:287
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
double b
Blue component.
Definition: color4d.h:288
virtual void Save() override
Save the context.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::DrawCircle ( const VECTOR2D aCenterPoint,
double  aRadius 
)
overridevirtual

Draw a circle using world coordinates.

Parameters
aCenterPointis the center point of the circle.
aRadiusis the radius of the circle.

Reimplemented from KIGFX::GAL.

Definition at line 469 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::GAL::isStrokeEnabled, KIGFX::GAL::layerDepth, KIGFX::GAL::lineWidth, KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Reserve(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_FILLED_CIRCLE, KIGFX::SHADER_STROKED_CIRCLE, KIGFX::GAL::strokeColor, KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

470 {
471  if( isFillEnabled )
472  {
473  currentManager->Reserve( 3 );
475 
476  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
477  * Parameters given to Shader() are indices of the triangle's vertices
478  * (if you want to understand more, check the vertex shader source [shader.vert]).
479  * Shader uses this coordinates to determine if fragments are inside the circle or not.
480  * v2
481  * /\
482  * //\\
483  * v0 /_\/_\ v1
484  */
486  currentManager->Vertex( aCenterPoint.x - aRadius * sqrt( 3.0f ), // v0
487  aCenterPoint.y - aRadius, layerDepth );
488 
490  currentManager->Vertex( aCenterPoint.x + aRadius * sqrt( 3.0f), // v1
491  aCenterPoint.y - aRadius, layerDepth );
492 
494  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y + aRadius * 2.0f, // v2
495  layerDepth );
496  }
497 
498  if( isStrokeEnabled )
499  {
500  currentManager->Reserve( 3 );
502 
503  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
504  * Parameters given to Shader() are indices of the triangle's vertices
505  * (if you want to understand more, check the vertex shader source [shader.vert]).
506  * and the line width. Shader uses this coordinates to determine if fragments are
507  * inside the circle or not.
508  * v2
509  * /\
510  * //\\
511  * v0 /_\/_\ v1
512  */
513  double outerRadius = aRadius + ( lineWidth / 2 );
515  currentManager->Vertex( aCenterPoint.x - outerRadius * sqrt( 3.0f ), // v0
516  aCenterPoint.y - outerRadius, layerDepth );
517 
519  currentManager->Vertex( aCenterPoint.x + outerRadius * sqrt( 3.0f ), // v1
520  aCenterPoint.y - outerRadius, layerDepth );
521 
523  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y + outerRadius * 2.0f, // v2
524  layerDepth );
525  }
526 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double layerDepth
The actual layer depth.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
double lineWidth
The line width.
double a
Alpha component.
Definition: color4d.h:289
bool isStrokeEnabled
Are the outlines stroked ?
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
bool isFillEnabled
Is filling of graphic objects enabled ?
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::DrawCursor ( const VECTOR2D aCursorPosition)
overridevirtual

Draw the cursor.

Parameters
aCursorPositionis the cursor position in screen coordinates.

Reimplemented from KIGFX::GAL.

Definition at line 1331 of file opengl_gal.cpp.

References KIGFX::GAL::cursorPosition.

1332 {
1333  // Now we should only store the position of the mouse cursor
1334  // The real drawing routines are in blitCursor()
1335  //VECTOR2D screenCursor = worldScreenMatrix * aCursorPosition;
1336  //cursorPosition = screenWorldMatrix * VECTOR2D( screenCursor.x, screenCursor.y );
1337  cursorPosition = aCursorPosition;
1338 }
VECTOR2D cursorPosition
Current cursor position (world coordinates)
void OPENGL_GAL::DrawCurve ( const VECTOR2D startPoint,
const VECTOR2D controlPointA,
const VECTOR2D controlPointB,
const VECTOR2D endPoint 
)
overridevirtual

Draw a cubic bezier spline.

Parameters
startPointis the start point of the spline.
controlPointAis the first control point.
controlPointBis the second control point.
endPointis the end point of the spline.

Reimplemented from KIGFX::GAL.

Definition at line 802 of file opengl_gal.cpp.

References CURVE_POINTS, and DrawPolyline().

804 {
805  // FIXME The drawing quality needs to be improved
806  // FIXME Perhaps choose a quad/triangle strip instead?
807  // FIXME Brute force method, use a better (recursive?) algorithm
808 
809  std::deque<VECTOR2D> pointList;
810 
811  double t = 0.0;
812  double dt = 1.0 / (double) CURVE_POINTS;
813 
814  for( int i = 0; i <= CURVE_POINTS; i++ )
815  {
816  double omt = 1.0 - t;
817  double omt2 = omt * omt;
818  double omt3 = omt * omt2;
819  double t2 = t * t;
820  double t3 = t * t2;
821 
822  VECTOR2D vertex = omt3 * aStartPoint + 3.0 * t * omt2 * aControlPointA
823  + 3.0 * t2 * omt * aControlPointB + t3 * aEndPoint;
824 
825  pointList.push_back( vertex );
826 
827  t += dt;
828  }
829 
830  DrawPolyline( pointList );
831 }
static const int CURVE_POINTS
The number of points for curve approximation.
Definition: opengl_gal.h:291
virtual void DrawPolyline(const std::deque< VECTOR2D > &aPointList) override
Draw a polyline.
Definition: opengl_gal.cpp:723
void OPENGL_GAL::drawFilledSemiCircle ( const VECTOR2D aCenterPoint,
double  aRadius,
double  aAngle 
)
private

Draw a filled semicircle.

Parameters
aCenterPointis the center point.
aRadiusis the radius of the semicircle.
aAngleis the angle of the semicircle.

Definition at line 1409 of file opengl_gal.cpp.

References currentManager, KIGFX::GAL::layerDepth, KIGFX::VERTEX_MANAGER::Reserve(), Restore(), KIGFX::VERTEX_MANAGER::Rotate(), Save(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_FILLED_CIRCLE, KIGFX::VERTEX_MANAGER::Translate(), KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DrawLine(), drawPolyline(), DrawSegment(), and drawSemiCircle().

1411 {
1412  Save();
1413 
1414  currentManager->Reserve( 3 );
1415  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1416  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1417 
1418  /* Draw a triangle that contains the semicircle, then shade it to leave only
1419  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1420  * (if you want to understand more, check the vertex shader source [shader.vert]).
1421  * Shader uses these coordinates to determine if fragments are inside the semicircle or not.
1422  * v2
1423  * /\
1424  * /__\
1425  * v0 //__\\ v1
1426  */
1428  currentManager->Vertex( -aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1429 
1431  currentManager->Vertex( aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1432 
1434  currentManager->Vertex( 0.0f, aRadius * 2.0f, layerDepth ); // v2
1435 
1436  Restore();
1437 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double layerDepth
The actual layer depth.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
virtual void Restore() override
Restore the context.
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
void Rotate(GLfloat aAngle, GLfloat aX, GLfloat aY, GLfloat aZ)
Function Rotate() multiplies the current matrix by a rotation matrix, so the newly vertices will be r...
virtual void Save() override
Save the context.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
void OPENGL_GAL::DrawGrid ( )
overridevirtual

>

Draw the grid

Reimplemented from KIGFX::GAL.

Definition at line 942 of file opengl_gal.cpp.

References KIGFX::GAL::axesColor, KIGFX::GAL::axesEnabled, KIGFX::COLOR4D::b, compositor, KIGFX::GAL::computeMinGridSpacing(), KIGFX::DOTS, KIGFX::COLOR4D::g, KIGFX::GAL::gridColor, KIGFX::GAL::gridLineWidth, KIGFX::GAL::gridOrigin, KIGFX::GAL::gridSize, KIGFX::GAL::gridStyle, KIGFX::GAL::gridTick, KIGFX::GAL::gridVisibility, KiROUND(), mainBuffer, max, KIGFX::COLOR4D::r, KIGFX::GAL::screenSize, KIGFX::GAL::screenWorldMatrix, KIGFX::OPENGL_COMPOSITOR::SetBuffer(), SetTarget(), KIGFX::SMALL_CROSS, KIGFX::TARGET_NONCACHED, KIGFX::GAL::worldScale, VECTOR2< T >::x, and VECTOR2< T >::y.

943 {
946 
947  // sub-pixel lines all render the same
948  double minorLineWidth = std::max( 1.0, gridLineWidth );
949  double majorLineWidth = minorLineWidth * 2.0;
950 
951  // Draw the axis and grid
952  // For the drawing the start points, end points and increments have
953  // to be calculated in world coordinates
954  VECTOR2D worldStartPoint = screenWorldMatrix * VECTOR2D( 0.0, 0.0 );
955  VECTOR2D worldEndPoint = screenWorldMatrix * VECTOR2D( screenSize );
956 
957  // Draw axes if desired
958  if( axesEnabled )
959  {
960  glLineWidth( minorLineWidth );
961  glColor4d( axesColor.r, axesColor.g, axesColor.b, 1.0 );
962 
963  glBegin( GL_LINES );
964  glVertex2d( worldStartPoint.x, 0 );
965  glVertex2d( worldEndPoint.x, 0 );
966  glEnd();
967 
968  glBegin( GL_LINES );
969  glVertex2d( 0, worldStartPoint.y );
970  glVertex2d( 0, worldEndPoint.y );
971  glEnd();
972  }
973 
974  if( !gridVisibility )
975  return;
976 
977  int gridScreenSizeDense = KiROUND( gridSize.x * worldScale );
978  int gridScreenSizeCoarse = KiROUND( gridSize.x * static_cast<double>( gridTick ) * worldScale );
979 
980  const double gridThreshold = computeMinGridSpacing();
981 
982  // Check if the grid would not be too dense
983  if( std::max( gridScreenSizeDense, gridScreenSizeCoarse ) < gridThreshold )
984  return;
985 
986  // Compute grid staring and ending indexes to draw grid points on the
987  // visible screen area
988  // Note: later any point coordinate will be offsetted by gridOrigin
989  int gridStartX = KiROUND( (worldStartPoint.x-gridOrigin.x) / gridSize.x );
990  int gridEndX = KiROUND( (worldEndPoint.x-gridOrigin.x) / gridSize.x );
991  int gridStartY = KiROUND( (worldStartPoint.y-gridOrigin.y) / gridSize.y );
992  int gridEndY = KiROUND( (worldEndPoint.y-gridOrigin.y) / gridSize.y );
993 
994  // Ensure start coordinate > end coordinate
995  if( gridStartX > gridEndX )
996  std::swap( gridStartX, gridEndX );
997 
998  if( gridStartY > gridEndY )
999  std::swap( gridStartY, gridEndY );
1000 
1001  glDisable( GL_DEPTH_TEST );
1002  glDisable( GL_TEXTURE_2D );
1003 
1004  if( gridStyle == GRID_STYLE::DOTS )
1005  {
1006  glEnable( GL_STENCIL_TEST );
1007  glStencilFunc( GL_ALWAYS, 1, 1 );
1008  glStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
1009  glColor4d( 0.0, 0.0, 0.0, 0.0 );
1010  }
1011  else
1012  {
1013  glColor4d( gridColor.r, gridColor.g, gridColor.b, 1.0 );
1014  }
1015 
1017  {
1018  glLineWidth( minorLineWidth );
1019 
1020  // calculate a line len = 2 minorLineWidth, in internal unit value
1021  // (in fact the size of cross is lineLen*2)
1022  int lineLen = KiROUND( minorLineWidth / worldScale *2 );
1023 
1024  // Vertical positions
1025  for( int j = gridStartY-1; j <= gridEndY; j++ )
1026  {
1027  if( ( j % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1028  || gridScreenSizeDense > gridThreshold )
1029  {
1030  int posY = j * gridSize.y + gridOrigin.y;
1031 
1032  // Horizontal positions
1033  for( int i = gridStartX-1; i <= gridEndX; i++ )
1034  {
1035  if( ( i % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1036  || gridScreenSizeDense > gridThreshold )
1037  {
1038  int posX = i * gridSize.x + gridOrigin.x;
1039 
1040  glBegin( GL_LINES );
1041  glVertex2d( posX -lineLen, posY );
1042  glVertex2d( posX + lineLen, posY );
1043  glVertex2d( posX, posY - lineLen );
1044  glVertex2d( posX, posY + lineLen );
1045  glEnd();
1046  }
1047  }
1048  }
1049  }
1050  }
1051  else
1052  {
1053  // Vertical lines
1054  for( int j = gridStartY-1; j <= gridEndY; j++ )
1055  {
1056  const double y = j * gridSize.y + gridOrigin.y;
1057 
1058  // If axes are drawn, skip the lines that would cover them
1059  if( axesEnabled && y == 0 )
1060  continue;
1061 
1062  if( j % gridTick == 0 && gridScreenSizeDense > gridThreshold )
1063  glLineWidth( majorLineWidth );
1064  else
1065  glLineWidth( minorLineWidth );
1066 
1067  if( ( j % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1068  || gridScreenSizeDense > gridThreshold )
1069  {
1070  glBegin( GL_LINES );
1071  glVertex2d( gridStartX * gridSize.x + gridOrigin.x, y );
1072  glVertex2d( gridEndX * gridSize.x + gridOrigin.x, y );
1073  glEnd();
1074  }
1075  }
1076 
1077  if( gridStyle == GRID_STYLE::DOTS )
1078  {
1079  glStencilFunc( GL_NOTEQUAL, 0, 1 );
1080  glColor4d( gridColor.r, gridColor.g, gridColor.b, 1.0 );
1081  }
1082 
1083  // Horizontal lines
1084  for( int i = gridStartX-1; i <= gridEndX; i++ )
1085  {
1086  const double x = i * gridSize.x + gridOrigin.x;
1087 
1088  // If axes are drawn, skip the lines that would cover them
1089  if( axesEnabled && x == 0 )
1090  continue;
1091 
1092  if( i % gridTick == 0 && gridScreenSizeDense > gridThreshold )
1093  glLineWidth( majorLineWidth );
1094  else
1095  glLineWidth( minorLineWidth );
1096 
1097  if( ( i % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1098  || gridScreenSizeDense > gridThreshold )
1099  {
1100  glBegin( GL_LINES );
1101  glVertex2d( x, gridStartY * gridSize.y + gridOrigin.y );
1102  glVertex2d( x, gridEndY * gridSize.y + gridOrigin.y );
1103  glEnd();
1104  }
1105  }
1106 
1107  if( gridStyle == GRID_STYLE::DOTS )
1108  glDisable( GL_STENCIL_TEST );
1109  }
1110 
1111  glEnable( GL_DEPTH_TEST );
1112  glEnable( GL_TEXTURE_2D );
1113 }
double computeMinGridSpacing() const
compute minimum grid spacing from the grid settings
int gridTick
Every tick line gets the double width.
bool axesEnabled
Should the axes be drawn.
static int KiROUND(double v)
KiROUND rounds a floating point number to an int using "round halfway cases away from zero"...
Definition: common.h:106
GRID_STYLE gridStyle
Grid display style.
double g
Green component.
Definition: color4d.h:287
MATRIX3x3D screenWorldMatrix
Screen transformation.
double b
Blue component.
Definition: color4d.h:288
Auxiliary rendering target (noncached)
Definition: definitions.h:42
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:312
COLOR4D axesColor
Color of the axes.
VECTOR2D gridOrigin
The grid origin.
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
Use dots for the grid.
Use small cross instead of dots for the grid.
virtual void SetTarget(RENDER_TARGET aTarget) override
Sets the target for rendering.
COLOR4D gridColor
Color of the grid.
bool gridVisibility
Should the grid be shown.
#define max(a, b)
Definition: auxiliary.h:86
double worldScale
The scale factor world->screen.
VECTOR2D gridSize
The grid size.
VECTOR2I screenSize
Screen size in screen coordinates.
double r
Red component.
Definition: color4d.h:286
double gridLineWidth
Line width of the grid.
virtual void KIGFX::GAL::drawGridLine ( const VECTOR2D aStartPoint,
const VECTOR2D aEndPoint 
)
inlineprotectedvirtualinherited

Draw a grid line (usually a simplified line function).

Parameters
aStartPointis the start point of the line.
aEndPointis the end point of the line.

Reimplemented in KIGFX::CAIRO_GAL.

Definition at line 1062 of file graphics_abstraction_layer.h.

Referenced by KIGFX::GAL::DrawGrid().

1062 {};
void OPENGL_GAL::DrawGroup ( int  aGroupNumber)
overridevirtual

Draw the stored group.

Parameters
aGroupNumberis the group number.

Reimplemented from KIGFX::GAL.

Definition at line 1227 of file opengl_gal.cpp.

References cachedManager, KIGFX::VERTEX_MANAGER::DrawItem(), and groups.

1228 {
1229  cachedManager->DrawItem( *groups[aGroupNumber] );
1230 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
void DrawItem(const VERTEX_ITEM &aItem) const
Function DrawItem() draws an item to the buffer.
void OPENGL_GAL::DrawLine ( const VECTOR2D aStartPoint,
const VECTOR2D aEndPoint 
)
overridevirtual

Draw a line.

Start and end points are defined as 2D-Vectors.

Parameters
aStartPointis the start point of the line.
aEndPointis the end point of the line.

Reimplemented from KIGFX::GAL.

Definition at line 406 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, VECTOR2< T >::Angle(), KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawFilledSemiCircle(), drawLineQuad(), KIGFX::COLOR4D::g, KIGFX::GAL::lineWidth, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

Referenced by DrawArc(), and DrawArcSegment().

407 {
408  const VECTOR2D startEndVector = aEndPoint - aStartPoint;
409  double lineAngle = startEndVector.Angle();
410 
412 
413  drawLineQuad( aStartPoint, aEndPoint );
414 
415  // Line caps
416  if( lineWidth > 1.0 )
417  {
418  drawFilledSemiCircle( aStartPoint, lineWidth / 2, lineAngle + M_PI / 2 );
419  drawFilledSemiCircle( aEndPoint, lineWidth / 2, lineAngle - M_PI / 2 );
420  }
421 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:287
double b
Blue component.
Definition: color4d.h:288
double lineWidth
The line width.
double Angle() const
Function Angle computes the angle of the vector.
Definition: vector2d.h:308
double a
Alpha component.
Definition: color4d.h:289
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
double r
Red component.
Definition: color4d.h:286
void drawFilledSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a filled semicircle.
void OPENGL_GAL::drawLineQuad ( const VECTOR2D aStartPoint,
const VECTOR2D aEndPoint 
)
private

Draw a quad for the line.

Parameters
aStartPointis the start point of the line.
aEndPointis the end point of the line.

Definition at line 1341 of file opengl_gal.cpp.

References currentManager, VECTOR2< T >::EuclideanNorm(), KIGFX::VERTEX_MANAGER::GetTransformation(), KIGFX::GAL::layerDepth, KIGFX::GAL::lineWidth, KIGFX::VERTEX_MANAGER::Reserve(), scale, KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_LINE, KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DrawLine(), drawPolyline(), and DrawSegment().

1342 {
1343  /* Helper drawing: ____--- v3 ^
1344  * ____---- ... \ \
1345  * ____---- ... \ end \
1346  * v1 ____---- ... ____---- \ width
1347  * ---- ...___---- \ \
1348  * \ ___...-- \ v
1349  * \ ____----... ____---- v2
1350  * ---- ... ____----
1351  * start \ ... ____----
1352  * \... ____----
1353  * ----
1354  * v0
1355  * dots mark triangles' hypotenuses
1356  */
1357 
1358  VECTOR2D startEndVector = aEndPoint - aStartPoint;
1359  double lineLength = startEndVector.EuclideanNorm();
1360 
1361  if( lineLength <= 0.0 )
1362  return;
1363 
1364  double scale = 0.5 * lineWidth / lineLength;
1365 
1366  // The perpendicular vector also needs transformations
1367  glm::vec4 vector = currentManager->GetTransformation() *
1368  glm::vec4( -startEndVector.y * scale, startEndVector.x * scale, 0.0, 0.0 );
1369 
1370  currentManager->Reserve( 6 );
1371 
1372  // Line width is maintained by the vertex shader
1373  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1374  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
1375 
1376  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1377  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v1
1378 
1379  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1380  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
1381 
1382  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1383  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
1384 
1385  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1386  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
1387 
1388  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1389  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v2
1390 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double layerDepth
The actual layer depth.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
double lineWidth
The line width.
T EuclideanNorm() const
Destructor.
Definition: vector2d.h:294
const int scale
const glm::mat4 & GetTransformation() const
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
void OPENGL_GAL::DrawPolygon ( const std::deque< VECTOR2D > &  aPointList)
overridevirtual

Draw a polygon.

Parameters
aPointListis the list of the polygon points.

Reimplemented from KIGFX::GAL.

Definition at line 746 of file opengl_gal.cpp.

References drawPolygon(), and KIGFX::GAL::layerDepth.

747 {
748  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aPointList.size()] );
749  GLdouble* ptr = points.get();
750 
751  for( const VECTOR2D& p : aPointList )
752  {
753  *ptr++ = p.x;
754  *ptr++ = p.y;
755  *ptr++ = layerDepth;
756  }
757 
758  drawPolygon( points.get(), aPointList.size() );
759 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.
void OPENGL_GAL::DrawPolygon ( const VECTOR2D  aPointList[],
int  aListSize 
)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 762 of file opengl_gal.cpp.

References drawPolygon(), KIGFX::GAL::layerDepth, VECTOR2< T >::x, and VECTOR2< T >::y.

763 {
764  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aListSize] );
765  GLdouble* target = points.get();
766  const VECTOR2D* src = aPointList;
767 
768  for( int i = 0; i < aListSize; ++i )
769  {
770  *target++ = src->x;
771  *target++ = src->y;
772  *target++ = layerDepth;
773  ++src;
774  }
775 
776  drawPolygon( points.get(), aListSize );
777 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.
void OPENGL_GAL::DrawPolygon ( const SHAPE_POLY_SET aPolySet)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 780 of file opengl_gal.cpp.

References SHAPE_POLY_SET::COutline(), SHAPE_LINE_CHAIN::CPoint(), drawPolygon(), KIGFX::GAL::layerDepth, SHAPE_POLY_SET::OutlineCount(), SHAPE_LINE_CHAIN::PointCount(), VECTOR2< T >::x, and VECTOR2< T >::y.

781 {
782  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
783  {
784  const SHAPE_LINE_CHAIN& outline = aPolySet.COutline( j );
785  const int pointCount = outline.PointCount();
786  std::unique_ptr<GLdouble[]> points( new GLdouble[3 * pointCount] );
787  GLdouble* ptr = points.get();
788 
789  for( int i = 0; i < outline.PointCount(); ++i )
790  {
791  const VECTOR2I& p = outline.CPoint( i );
792  *ptr++ = p.x;
793  *ptr++ = p.y;
794  *ptr++ = layerDepth;
795  }
796 
797  drawPolygon( points.get(), pointCount );
798  }
799 }
double layerDepth
The actual layer depth.
int PointCount() const
Function PointCount()
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.
int OutlineCount() const
Returns the number of outlines in the set
const SHAPE_LINE_CHAIN & COutline(int aIndex) const
Class SHAPE_LINE_CHAIN.
const VECTOR2I & CPoint(int aIndex) const
Function CPoint()
void OPENGL_GAL::drawPolygon ( GLdouble *  aPoints,
int  aPointCount 
)
private

Draws a filled polygon.

It does not need the last point to have the same coordinates as the first one.

Parameters
aPointsis the vertices data (3 coordinates: x, y, z).
aPointCountis the number of points.

Definition at line 1474 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawPolyline(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isStrokeEnabled, KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_NONE, tesselator, and tessIntersects.

Referenced by DrawPolygon().

1475 {
1478 
1479  // Any non convex polygon needs to be tesselated
1480  // for this purpose the GLU standard functions are used
1481  TessParams params = { currentManager, tessIntersects };
1482  gluTessBeginPolygon( tesselator, &params );
1483  gluTessBeginContour( tesselator );
1484 
1485  GLdouble* point = aPoints;
1486 
1487  for( int i = 0; i < aPointCount; ++i )
1488  {
1489  gluTessVertex( tesselator, point, point );
1490  point += 3; // 3 coordinates
1491  }
1492 
1493  gluTessEndContour( tesselator );
1494  gluTessEndPolygon( tesselator );
1495 
1496  // Free allocated intersecting points
1497  tessIntersects.clear();
1498 
1499  if( isStrokeEnabled )
1500  drawPolyline( [&](int idx) { return VECTOR2D( aPoints[idx * 3], aPoints[idx * 3 + 1] ); },
1501  aPointCount );
1502 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void drawPolyline(std::function< VECTOR2D(int)> aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
double a
Alpha component.
Definition: color4d.h:289
bool isStrokeEnabled
Are the outlines stroked ?
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:332
std::deque< boost::shared_array< GLdouble > > tessIntersects
Storage for intersecting points.
Definition: opengl_gal.h:334
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::DrawPolyline ( const std::deque< VECTOR2D > &  aPointList)
overridevirtual

Draw a polyline.

Parameters
aPointListis a list of 2D-Vectors containing the polyline points.

Reimplemented from KIGFX::GAL.

Definition at line 723 of file opengl_gal.cpp.

References drawPolyline().

Referenced by DrawCurve(), and DrawRectangle().

724 {
725  drawPolyline( [&](int idx) { return aPointList[idx]; }, aPointList.size() );
726 }
void drawPolyline(std::function< VECTOR2D(int)> aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
void OPENGL_GAL::DrawPolyline ( const VECTOR2D  aPointList[],
int  aListSize 
)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 729 of file opengl_gal.cpp.

References drawPolyline().

730 {
731  drawPolyline( [&](int idx) { return aPointList[idx]; }, aListSize );
732 }
void drawPolyline(std::function< VECTOR2D(int)> aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
void OPENGL_GAL::DrawPolyline ( const SHAPE_LINE_CHAIN aLineChain)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 735 of file opengl_gal.cpp.

References SHAPE_LINE_CHAIN::CPoint(), drawPolyline(), SHAPE_LINE_CHAIN::IsClosed(), and SHAPE_LINE_CHAIN::PointCount().

736 {
737  auto numPoints = aLineChain.PointCount();
738 
739  if( aLineChain.IsClosed() )
740  numPoints += 1;
741 
742  drawPolyline( [&](int idx) { return aLineChain.CPoint(idx); }, numPoints );
743 }
void drawPolyline(std::function< VECTOR2D(int)> aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
int PointCount() const
Function PointCount()
bool IsClosed() const
Function IsClosed()
const VECTOR2I & CPoint(int aIndex) const
Function CPoint()
void OPENGL_GAL::drawPolyline ( std::function< VECTOR2D(int)>  aPointGetter,
int  aPointCount 
)
private

Generic way of drawing a polyline stored in different containers.

Parameters
aPointGetteris a function to obtain coordinates of n-th vertex.
aPointCountis the number of points to be drawn.

Definition at line 1505 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, VECTOR2< T >::Angle(), KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawFilledSemiCircle(), drawLineQuad(), KIGFX::COLOR4D::g, KIGFX::GAL::lineWidth, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

Referenced by drawPolygon(), and DrawPolyline().

1506 {
1507  if( aPointCount < 2 )
1508  return;
1509 
1511  int i;
1512 
1513  for( i = 1; i < aPointCount; ++i )
1514  {
1515  auto start = aPointGetter( i - 1 );
1516  auto end = aPointGetter( i );
1517  const VECTOR2D startEndVector = ( end - start );
1518  double lineAngle = startEndVector.Angle();
1519 
1520  drawLineQuad( start, end );
1521 
1522  // There is no need to draw line caps on both ends of polyline's segments
1523  drawFilledSemiCircle( start, lineWidth / 2, lineAngle + M_PI / 2 );
1524  }
1525 
1526  // ..and now - draw the ending cap
1527  auto start = aPointGetter( i - 2 );
1528  auto end = aPointGetter( i - 1 );
1529  const VECTOR2D startEndVector = ( end - start );
1530  double lineAngle = startEndVector.Angle();
1531  drawFilledSemiCircle( end, lineWidth / 2, lineAngle - M_PI / 2 );
1532 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:287
double b
Blue component.
Definition: color4d.h:288
double lineWidth
The line width.
double Angle() const
Function Angle computes the angle of the vector.
Definition: vector2d.h:308
double a
Alpha component.
Definition: color4d.h:289
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
double r
Red component.
Definition: color4d.h:286
void drawFilledSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a filled semicircle.
void OPENGL_GAL::DrawRectangle ( const VECTOR2D aStartPoint,
const VECTOR2D aEndPoint 
)
overridevirtual

Draw a rectangle.

Parameters
aStartPointis the start point of the rectangle.
aEndPointis the end point of the rectangle.

Reimplemented from KIGFX::GAL.

Definition at line 685 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, DrawPolyline(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::GAL::isStrokeEnabled, KIGFX::GAL::layerDepth, KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Reserve(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_NONE, KIGFX::GAL::strokeColor, KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

686 {
687  // Compute the diagonal points of the rectangle
688  VECTOR2D diagonalPointA( aEndPoint.x, aStartPoint.y );
689  VECTOR2D diagonalPointB( aStartPoint.x, aEndPoint.y );
690 
691  // Stroke the outline
692  if( isStrokeEnabled )
693  {
695 
696  std::deque<VECTOR2D> pointList;
697  pointList.push_back( aStartPoint );
698  pointList.push_back( diagonalPointA );
699  pointList.push_back( aEndPoint );
700  pointList.push_back( diagonalPointB );
701  pointList.push_back( aStartPoint );
702  DrawPolyline( pointList );
703  }
704 
705  // Fill the rectangle
706  if( isFillEnabled )
707  {
708  currentManager->Reserve( 6 );
711 
712  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
713  currentManager->Vertex( diagonalPointA.x, diagonalPointA.y, layerDepth );
714  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
715 
716  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
717  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
718  currentManager->Vertex( diagonalPointB.x, diagonalPointB.y, layerDepth );
719  }
720 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double layerDepth
The actual layer depth.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
double a
Alpha component.
Definition: color4d.h:289
bool isStrokeEnabled
Are the outlines stroked ?
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
bool isFillEnabled
Is filling of graphic objects enabled ?
virtual void DrawPolyline(const std::deque< VECTOR2D > &aPointList) override
Draw a polyline.
Definition: opengl_gal.cpp:723
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
double r
Red component.
Definition: color4d.h:286
void OPENGL_GAL::DrawSegment ( const VECTOR2D aStartPoint,
const VECTOR2D aEndPoint,
double  aWidth 
)
overridevirtual

Draw a rounded segment.

Start and end points are defined as 2D-Vectors.

Parameters
aStartPointis the start point of the segment.
aEndPointis the end point of the segment.
aWidthis a width of the segment

Reimplemented from KIGFX::GAL.

Definition at line 424 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, VECTOR2< T >::Angle(), KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawFilledSemiCircle(), drawLineQuad(), drawStrokedSemiCircle(), VECTOR2< T >::EuclideanNorm(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::COLOR4D::r, Restore(), KIGFX::VERTEX_MANAGER::Rotate(), Save(), KIGFX::GAL::SetLineWidth(), KIGFX::GAL::strokeColor, and KIGFX::VERTEX_MANAGER::Translate().

426 {
427  VECTOR2D startEndVector = aEndPoint - aStartPoint;
428  double lineAngle = startEndVector.Angle();
429 
430  if( isFillEnabled )
431  {
432  // Filled tracks
434 
435  SetLineWidth( aWidth );
436  drawLineQuad( aStartPoint, aEndPoint );
437 
438  // Draw line caps
439  drawFilledSemiCircle( aStartPoint, aWidth / 2, lineAngle + M_PI / 2 );
440  drawFilledSemiCircle( aEndPoint, aWidth / 2, lineAngle - M_PI / 2 );
441  }
442  else
443  {
444  // Outlined tracks
445  double lineLength = startEndVector.EuclideanNorm();
446 
448 
449  Save();
450 
451  currentManager->Translate( aStartPoint.x, aStartPoint.y, 0.0 );
452  currentManager->Rotate( lineAngle, 0.0f, 0.0f, 1.0f );
453 
454  drawLineQuad( VECTOR2D( 0.0, aWidth / 2.0 ),
455  VECTOR2D( lineLength, aWidth / 2.0 ) );
456 
457  drawLineQuad( VECTOR2D( 0.0, -aWidth / 2.0 ),
458  VECTOR2D( lineLength, -aWidth / 2.0 ) );
459 
460  // Draw line caps
461  drawStrokedSemiCircle( VECTOR2D( 0.0, 0.0 ), aWidth / 2, M_PI / 2 );
462  drawStrokedSemiCircle( VECTOR2D( lineLength, 0.0 ), aWidth / 2, -M_PI / 2 );
463 
464  Restore();
465  }
466 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
virtual void Restore() override
Restore the context.
void Rotate(GLfloat aAngle, GLfloat aX, GLfloat aY, GLfloat aZ)
Function Rotate() multiplies the current matrix by a rotation matrix, so the newly vertices will be r...
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
double Angle() const
Function Angle computes the angle of the vector.
Definition: vector2d.h:308
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:289
virtual void SetLineWidth(double aLineWidth)
Set the line width.
T EuclideanNorm() const
Destructor.
Definition: vector2d.h:294
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
COLOR4D strokeColor
The color of the outlines.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
void drawStrokedSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a stroked semicircle.
bool isFillEnabled
Is filling of graphic objects enabled ?
double r
Red component.
Definition: color4d.h:286
void drawFilledSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a filled semicircle.
void OPENGL_GAL::drawSemiCircle ( const VECTOR2D aCenterPoint,
double  aRadius,
double  aAngle 
)
private

Draw a semicircle.

Depending on settings (isStrokeEnabled & isFilledEnabled) it runs the proper function (drawStrokedSemiCircle or drawFilledSemiCircle).

Parameters
aCenterPointis the center point.
aRadiusis the radius of the semicircle.
aAngleis the angle of the semicircle.

Definition at line 1393 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawFilledSemiCircle(), drawStrokedSemiCircle(), KIGFX::GAL::fillColor, KIGFX::COLOR4D::g, KIGFX::GAL::isFillEnabled, KIGFX::GAL::isStrokeEnabled, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

1394 {
1395  if( isFillEnabled )
1396  {
1398  drawFilledSemiCircle( aCenterPoint, aRadius, aAngle );
1399  }
1400 
1401  if( isStrokeEnabled )
1402  {
1404  drawStrokedSemiCircle( aCenterPoint, aRadius, aAngle );
1405  }
1406 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double g
Green component.
Definition: color4d.h:287
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:288
double a
Alpha component.
Definition: color4d.h:289
bool isStrokeEnabled
Are the outlines stroked ?
COLOR4D strokeColor
The color of the outlines.
void Color(const COLOR4D &aColor)
Function Color() changes currently used color that will be applied to newly added vertices...
void drawStrokedSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a stroked semicircle.
bool isFillEnabled
Is filling of graphic objects enabled ?
double r
Red component.
Definition: color4d.h:286
void drawFilledSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a filled semicircle.
void OPENGL_GAL::drawStrokedSemiCircle ( const VECTOR2D aCenterPoint,
double  aRadius,
double  aAngle 
)
private

Draw a stroked semicircle.

Parameters
aCenterPointis the center point.
aRadiusis the radius of the semicircle.
aAngleis the angle of the semicircle.

Definition at line 1440 of file opengl_gal.cpp.

References currentManager, KIGFX::GAL::layerDepth, KIGFX::GAL::lineWidth, KIGFX::VERTEX_MANAGER::Reserve(), Restore(), KIGFX::VERTEX_MANAGER::Rotate(), Save(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_STROKED_CIRCLE, KIGFX::VERTEX_MANAGER::Translate(), KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DrawArcSegment(), DrawSegment(), and drawSemiCircle().

1442 {
1443  double outerRadius = aRadius + ( lineWidth / 2 );
1444 
1445  Save();
1446 
1447  currentManager->Reserve( 3 );
1448  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1449  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1450 
1451  /* Draw a triangle that contains the semicircle, then shade it to leave only
1452  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1453  * (if you want to understand more, check the vertex shader source [shader.vert]), the
1454  * radius and the line width. Shader uses these coordinates to determine if fragments are
1455  * inside the semicircle or not.
1456  * v2
1457  * /\
1458  * /__\
1459  * v0 //__\\ v1
1460  */
1462  currentManager->Vertex( -outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1463 
1465  currentManager->Vertex( outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1466 
1468  currentManager->Vertex( 0.0f, outerRadius * 2.0f, layerDepth ); // v2
1469 
1470  Restore();
1471 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
double layerDepth
The actual layer depth.
bool Reserve(unsigned int aSize)
Function Reserve() allocates space for vertices, so it will be used with subsequent Vertex() calls...
virtual void Restore() override
Restore the context.
bool Vertex(const VERTEX &aVertex)
Function Vertex() adds a vertex with the given coordinates to the currently set item.
void Rotate(GLfloat aAngle, GLfloat aX, GLfloat aY, GLfloat aZ)
Function Rotate() multiplies the current matrix by a rotation matrix, so the newly vertices will be r...
double lineWidth
The line width.
virtual void Save() override
Save the context.
void Translate(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Translate() multiplies the current matrix by a translation matrix, so newly vertices will be...
void Shader(GLfloat aShaderType, GLfloat aParam1=0.0f, GLfloat aParam2=0.0f, GLfloat aParam3=0.0f)
Function Shader() changes currently used shader and its parameters that will be applied to newly adde...
void OPENGL_GAL::EndDrawing ( )
overridevirtual

End the drawing, needs to be called for every new frame.

Reimplemented from KIGFX::GAL.

Definition at line 349 of file opengl_gal.cpp.

References blitCursor(), cachedManager, compositor, KIGFX::OPENGL_COMPOSITOR::DrawBuffer(), KIGFX::VERTEX_MANAGER::EndDrawing(), GL_CONTEXT_MANAGER::Get(), glPrivContext, mainBuffer, PROF_COUNTER::msecs(), nonCachedManager, overlayBuffer, overlayManager, KIGFX::OPENGL_COMPOSITOR::Present(), KIGFX::OPENGL_COMPOSITOR::SetBuffer(), PROF_COUNTER::Stop(), and GL_CONTEXT_MANAGER::UnlockCtx().

350 {
351 #ifdef __WXDEBUG__
352  PROF_COUNTER totalRealTime( "OPENGL_GAL::EndDrawing()", true );
353 #endif /* __WXDEBUG__ */
354 
355  // Cached & non-cached containers are rendered to the same buffer
359 
360  // Overlay container is rendered to a different buffer
363 
364  // Be sure that the framebuffer is not colorized (happens on specific GPU&drivers combinations)
365  glColor4d( 1.0, 1.0, 1.0, 1.0 );
366 
367  // Draw the remaining contents, blit the rendering targets to the screen, swap the buffers
370  compositor->Present();
371  blitCursor();
372 
373  SwapBuffers();
375 
376 #ifdef __WXDEBUG__
377  totalRealTime.Stop();
378  wxLogTrace( "GAL_PROFILE", wxT( "OPENGL_GAL::EndDrawing(): %.1f ms" ), totalRealTime.msecs() );
379 #endif /* __WXDEBUG__ */
380 }
virtual void DrawBuffer(unsigned int aBufferHandle) override
Function DrawBuffer() draws the selected buffer to the output buffer.
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:313
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
The class PROF_COUNTER is a small class to help profiling.
Definition: profile.h:45
void UnlockCtx(wxGLContext *aContext)
Function UnlockCtx allows other canvases to bind an OpenGL context.
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
virtual void Present() override
Function Present() Call this to present the output buffer to the screen.
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:312
void EndDrawing() const
Function EndDrawing() finishes drawing operations.
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
void blitCursor()
Blits cursor into the current screen.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
void OPENGL_GAL::EndGroup ( )
overridevirtual

End the group.

Reimplemented from KIGFX::GAL.

Definition at line 1220 of file opengl_gal.cpp.

References cachedManager, KIGFX::VERTEX_MANAGER::FinishItem(), and isGrouping.

1221 {
1223  isGrouping = false;
1224 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:325
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
void FinishItem() const
Function FinishItem() does the cleaning after adding an item.
void OPENGL_GAL::EndUpdate ( )
overridevirtual

Disables item update mode.

Reimplemented from KIGFX::GAL.

Definition at line 396 of file opengl_gal.cpp.

References cachedManager, GL_CONTEXT_MANAGER::Get(), glPrivContext, isInitialized, GL_CONTEXT_MANAGER::UnlockCtx(), and KIGFX::VERTEX_MANAGER::Unmap().

397 {
398  if( !isInitialized )
399  return;
400 
401  cachedManager->Unmap();
403 }
void UnlockCtx(wxGLContext *aContext)
Function UnlockCtx allows other canvases to bind an OpenGL context.
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
void Unmap()
Function Unmap() unmaps vertex buffer.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
void OPENGL_GAL::Flush ( )
overridevirtual

Force all remaining objects to be drawn.

Reimplemented from KIGFX::GAL.

Definition at line 1145 of file opengl_gal.cpp.

1146 {
1147  glFlush();
1148 }
const COLOR4D& KIGFX::GAL::GetClearColor ( ) const
inlineinherited

Definition at line 206 of file graphics_abstraction_layer.h.

References KIGFX::GAL::m_clearColor.

207  {
208  return m_clearColor;
209  }
COLOR4D GAL::getCursorColor ( ) const
protectedinherited

Gets the actual cursor color to draw.

Definition at line 417 of file graphics_abstraction_layer.cpp.

References color, KIGFX::GAL::cursorColor, and KIGFX::GAL::isCursorEnabled.

Referenced by KIGFX::CAIRO_GAL::blitCursor(), and blitCursor().

418 {
419  auto color = cursorColor;
420 
421  // dim the cursor if it's only on because it was forced
422  // (this helps to provide a hint for active tools)
423  if( !isCursorEnabled )
424  {
425  color.a = color.a * 0.5;
426  }
427 
428  return color;
429 }
bool isCursorEnabled
Is the cursor enabled?
COLOR4D cursorColor
Cursor color.
double KIGFX::GAL::GetGridLineWidth ( ) const
inlineinherited

Get the grid line width.

Returns
the grid line width

Definition at line 884 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridLineWidth.

885  {
886  return gridLineWidth;
887  }
double gridLineWidth
Line width of the grid.
VECTOR2D GAL::GetGridPoint ( const VECTOR2D aPoint) const
inherited

Function GetGridPoint() For a given point it returns the nearest point belonging to the grid in world coordinates.

Parameters
aPointis the point for which the grid point is searched.
Returns
The nearest grid point in world coordinates.

Definition at line 395 of file graphics_abstraction_layer.cpp.

References KIGFX::GAL::gridOffset, KIGFX::GAL::gridSize, KiROUND(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by EDIT_POINTS_FACTORY::buildForPolyOutline(), and KIGFX::WX_VIEW_CONTROLS::GetRawCursorPosition().

396 {
397 #if 0
398  // This old code expects a non zero grid size, which can be wrong here.
399  return VECTOR2D( KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x,
400  KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y );
401 #else
402  // if grid size == 0.0 there is no grid, so use aPoint as grid reference position
403  double cx = gridSize.x > 0.0 ? KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x
404  : aPoint.x;
405  double cy = gridSize.y > 0.0 ? KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y
406  : aPoint.y;
407 
408  return VECTOR2D( cx, cy );
409 #endif
410 }
VECTOR2D gridOffset
The grid offset to compensate cursor position.
static int KiROUND(double v)
KiROUND rounds a floating point number to an int using "round halfway cases away from zero"...
Definition: common.h:106
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
VECTOR2D gridSize
The grid size.
const VECTOR2D& KIGFX::GAL::GetGridSize ( ) const
inlineinherited

Returns the grid size.

Returns
A vector containing the grid size in x and y direction.

Definition at line 836 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridSize.

837  {
838  return gridSize;
839  }
VECTOR2D gridSize
The grid size.
EDA_TEXT_HJUSTIFY_T KIGFX::GAL::GetHorizontalJustify ( ) const
inlineinherited

Returns current text horizontal justification setting.

Definition at line 468 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_horizontalJustify, and KIGFX::GAL::textProperties.

Referenced by BitmapText(), and KIGFX::STROKE_FONT::drawSingleLineText().

469  {
471  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
EDA_TEXT_HJUSTIFY_T m_horizontalJustify
Horizontal justification.
double KIGFX::GAL::GetLineWidth ( void  ) const
inlineinherited
const VECTOR2D& KIGFX::GAL::GetLookAtPoint ( ) const
inlineinherited

Get the look at point.

Returns
the look at point.

Definition at line 663 of file graphics_abstraction_layer.h.

References KIGFX::GAL::lookAtPoint.

664  {
665  return lookAtPoint;
666  }
VECTOR2D lookAtPoint
Point to be looked at in world space.
double KIGFX::GAL::GetMaxDepth ( ) const
inlineinherited

Returns the maximum depth in the currently used range (the bottom).

Definition at line 712 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthRange, and VECTOR2< T >::y.

713  {
714  return depthRange.y;
715  }
VECTOR2D depthRange
Range of the depth.
double KIGFX::GAL::GetMinDepth ( ) const
inlineinherited

Returns the minimum depth in the currently used range (the top).

Definition at line 704 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthRange, and VECTOR2< T >::x.

705  {
706  return depthRange.x;
707  }
VECTOR2D depthRange
Range of the depth.
unsigned int OPENGL_GAL::getNewGroupNumber ( )
private

Returns a valid key that can be used as a new group number.

Returns
An unique group number that is not used by any other group.

Definition at line 1723 of file opengl_gal.cpp.

References groupCounter, groups, and max.

Referenced by BeginGroup().

1724 {
1725  wxASSERT_MSG( groups.size() < std::numeric_limits<unsigned int>::max(),
1726  wxT( "There are no free slots to store a group" ) );
1727 
1728  while( groups.find( groupCounter ) != groups.end() )
1729  {
1730  groupCounter++;
1731  }
1732 
1733  return groupCounter++;
1734 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:303
#define max(a, b)
Definition: auxiliary.h:86
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:304
double KIGFX::GAL::GetOverbarVerticalPosition ( ) const
inlineinherited

Compute the vertical position of an overbar, sometimes used in texts.

This is the distance between the text base line and the overbar.

Returns
the relative position of the overbar axis.

Definition at line 363 of file graphics_abstraction_layer.h.

References KIGFX::STROKE_FONT::computeOverbarVerticalPosition(), and KIGFX::GAL::strokeFont.

364  {
366  }
STROKE_FONT strokeFont
Instance of object that stores information about how to draw texts.
double computeOverbarVerticalPosition() const
Compute the vertical position of an overbar, sometimes used in texts.
const VECTOR2I& KIGFX::GAL::GetScreenPixelSize ( ) const
inlineinherited

Returns GAL canvas size in pixels.

Definition at line 193 of file graphics_abstraction_layer.h.

References KIGFX::GAL::screenSize.

Referenced by KIGFX::WX_VIEW_CONTROLS::CenterOnCursor(), KIGFX::VIEW::GetScreenPixelSize(), KIGFX::VIEW::GetViewport(), KIGFX::VIEW::Redraw(), KIGFX::VIEW::SetViewport(), and KIGFX::WX_VIEW_CONTROLS::WarpCursor().

194  {
195  return screenSize;
196  }
VECTOR2I screenSize
Screen size in screen coordinates.
const MATRIX3x3D& KIGFX::GAL::GetScreenWorldMatrix ( ) const
inlineinherited

Get the screen <-> world transformation matrix.

Returns
the transformation matrix.

Definition at line 604 of file graphics_abstraction_layer.h.

References KIGFX::GAL::screenWorldMatrix.

Referenced by KIGFX::VIEW::ToWorld().

605  {
606  return screenWorldMatrix;
607  }
MATRIX3x3D screenWorldMatrix
Screen transformation.
const COLOR4D& KIGFX::GAL::GetStrokeColor ( ) const
inlineinherited

Get the stroke color.

Returns
the color for stroking the outline.

Definition at line 266 of file graphics_abstraction_layer.h.

References KIGFX::GAL::strokeColor.

267  {
268  return strokeColor;
269  }
COLOR4D strokeColor
The color of the outlines.
const STROKE_FONT& KIGFX::GAL::GetStrokeFont ( ) const
inlineinherited

Definition at line 308 of file graphics_abstraction_layer.h.

References KIGFX::GAL::strokeFont.

Referenced by EDA_TEXT::GetTextBox().

309  {
310  return strokeFont;
311  }
STROKE_FONT strokeFont
Instance of object that stores information about how to draw texts.
RENDER_TARGET OPENGL_GAL::GetTarget ( ) const
overridevirtual

Gets the currently used target for rendering.

Returns
The current rendering target.

Reimplemented from KIGFX::GAL.

Definition at line 1295 of file opengl_gal.cpp.

References currentTarget.

1296 {
1297  return currentTarget;
1298 }
RENDER_TARGET currentTarget
Current rendering target.
Definition: opengl_gal.h:314
VECTOR2D GAL::GetTextLineSize ( const UTF8 aText) const
inherited

Compute the X and Y size of a given text.

The text is expected to be a only one line text.

Parameters
aTextis the text string (one line).
Returns
is the text size.

Definition at line 168 of file graphics_abstraction_layer.cpp.

References KIGFX::STROKE_FONT::computeTextLineSize(), and KIGFX::GAL::strokeFont.

Referenced by GraphicTextWidth(), and EDA_TEXT::LenSize().

169 {
170  // Compute the X and Y size of a given text.
171  // Because computeTextLineSize expects a one line text,
172  // aText is expected to be only one line text.
173  return strokeFont.computeTextLineSize( aText );
174 }
STROKE_FONT strokeFont
Instance of object that stores information about how to draw texts.
VECTOR2D computeTextLineSize(const UTF8 &aText) const
Compute the X and Y size of a given text.
EDA_TEXT_VJUSTIFY_T KIGFX::GAL::GetVerticalJustify ( ) const
inlineinherited

Returns current text vertical justification setting.

Definition at line 486 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_verticalJustify, and KIGFX::GAL::textProperties.

Referenced by BitmapText(), and KIGFX::STROKE_FONT::Draw().

487  {
489  }
EDA_TEXT_VJUSTIFY_T m_verticalJustify
Vertical justification.
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
double KIGFX::GAL::GetWorldScale ( ) const
inlineinherited
const MATRIX3x3D& KIGFX::GAL::GetWorldScreenMatrix ( ) const
inlineinherited

Get the world <-> screen transformation matrix.

Returns
the transformation matrix.

Definition at line 594 of file graphics_abstraction_layer.h.

References KIGFX::GAL::worldScreenMatrix.

Referenced by KIGFX::VIEW::ToScreen().

595  {
596  return worldScreenMatrix;
597  }
MATRIX3x3D worldScreenMatrix
World transformation.
double KIGFX::GAL::GetZoomFactor ( ) const
inlineinherited

Get the zoom factor.

Returns
the zoom factor.

Definition at line 683 of file graphics_abstraction_layer.h.

References KIGFX::GAL::zoomFactor.

Referenced by EDA_DRAW_PANEL_GAL::GetLegacyZoom(), EDA_DRAW_FRAME::GetZoomLevelIndicator(), EDA_DRAW_FRAME::UseGalCanvas(), and COMMON_TOOLS::ZoomPreset().

684  {
685  return zoomFactor;
686  }
double zoomFactor
The zoom factor.
void OPENGL_GAL::init ( )
private

Basic OpenGL initialization.

Definition at line 1737 of file opengl_gal.cpp.

References cachedManager, KIGFX::BUILTIN_FONT::font_image, GL_CONTEXT_MANAGER::Get(), glPrivContext, KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::height, isInitialized, KIGFX::SHADER::IsLinked(), KIGFX::BUILTIN_SHADERS::kicad_fragment_shader, KIGFX::BUILTIN_SHADERS::kicad_vertex_shader, KIGFX::SHADER::Link(), KIGFX::SHADER::LoadShaderFromStrings(), GL_CONTEXT_MANAGER::LockCtx(), nonCachedManager, overlayManager, KIGFX::VERTEX_MANAGER::SetShader(), shader, KIGFX::SHADER_TYPE_FRAGMENT, KIGFX::SHADER_TYPE_VERTEX, GL_CONTEXT_MANAGER::UnlockCtx(), and KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::width.

Referenced by BeginDrawing(), and BeginUpdate().

1738 {
1739  wxASSERT( IsShownOnScreen() );
1740 
1742 
1743  GLenum err = glewInit();
1744 
1745  try
1746  {
1747  if( GLEW_OK != err )
1748  throw std::runtime_error( (const char*) glewGetErrorString( err ) );
1749 
1750  // Check the OpenGL version (minimum 2.1 is required)
1751  if( !GLEW_VERSION_2_1 )
1752  throw std::runtime_error( "OpenGL 2.1 or higher is required!" );
1753 
1754  // Framebuffers have to be supported
1755  if( !GLEW_EXT_framebuffer_object )
1756  throw std::runtime_error( "Framebuffer objects are not supported!" );
1757 
1758  // Vertex buffer has to be supported
1759  if( !GLEW_ARB_vertex_buffer_object )
1760  throw std::runtime_error( "Vertex buffer objects are not supported!" );
1761 
1762  // Prepare shaders
1764  throw std::runtime_error( "Cannot compile vertex shader!" );
1765 
1767  throw std::runtime_error( "Cannot compile fragment shader!" );
1768 
1769  if( !shader->IsLinked() && !shader->Link() )
1770  throw std::runtime_error( "Cannot link the shaders!" );
1771 
1772  // Check if video card supports textures big enough to fit the font atlas
1773  int maxTextureSize;
1774  glGetIntegerv( GL_MAX_TEXTURE_SIZE, &maxTextureSize );
1775 
1776  if( maxTextureSize < (int) font_image.width || maxTextureSize < (int)font_image.height )
1777  {
1778  // TODO implement software texture scaling
1779  // for bitmap fonts and use a higher resolution texture?
1780  throw std::runtime_error( "Requested texture size is not supported" );
1781  }
1782  }
1783  catch( std::runtime_error& )
1784  {
1786  throw;
1787  }
1788 
1789  cachedManager = new VERTEX_MANAGER( true );
1790  nonCachedManager = new VERTEX_MANAGER( false );
1791  overlayManager = new VERTEX_MANAGER( false );
1792 
1793  // Make VBOs use shaders
1797 
1799  isInitialized = true;
1800 }
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:317
bool IsLinked() const
Returns true if shaders are linked correctly.
Definition: shader.h:122
bool LoadShaderFromStrings(SHADER_TYPE aShaderType, Args &&...aArgs)
Add a shader and compile the shader sources.
Definition: shader.h:97
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
Fragment shader.
Definition: shader.h:45
bool Link()
Link the shaders.
Definition: shader.cpp:96
void UnlockCtx(wxGLContext *aContext)
Function UnlockCtx allows other canvases to bind an OpenGL context.
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
FONT_IMAGE_TYPE font_image
Definition: gl_resources.cpp:4
Vertex shader.
Definition: shader.h:44
void LockCtx(wxGLContext *aContext, wxGLCanvas *aCanvas)
Function LockCtx sets a context as current and prevents other canvases from switching it...
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:323
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:294
void SetShader(SHADER &aShader) const
Function SetShader() sets a shader program that is going to be used during rendering.
bool KIGFX::GAL::IsCursorEnabled ( ) const
inlineinherited

Returns information about cursor visibility.

Returns
True if cursor is visible.

Definition at line 937 of file graphics_abstraction_layer.h.

References KIGFX::GAL::forceDisplayCursor, and KIGFX::GAL::isCursorEnabled.

Referenced by KIGFX::CAIRO_GAL::blitCursor(), and blitCursor().

938  {
940  }
bool isCursorEnabled
Is the cursor enabled?
bool forceDisplayCursor
Always show cursor.
bool KIGFX::GAL::IsFontBold ( ) const
inlineinherited

Returns true if current font has 'bold' attribute enabled.

Definition at line 414 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_bold, and KIGFX::GAL::textProperties.

Referenced by KIGFX::STROKE_FONT::Draw().

415  {
416  return textProperties.m_bold;
417  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
bool KIGFX::GAL::IsFontItalic ( ) const
inlineinherited

Returns true if current font has 'italic' attribute enabled.

Definition at line 432 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_italic, and KIGFX::GAL::textProperties.

Referenced by KIGFX::STROKE_FONT::ComputeStringBoundaryLimits(), and KIGFX::STROKE_FONT::drawSingleLineText().

433  {
434  return textProperties.m_italic;
435  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
virtual bool KIGFX::OPENGL_GAL::IsInitialized ( ) const
inlineoverridevirtual

Returns the initalization status for the canvas.

Reimplemented from KIGFX::GAL.

Definition at line 90 of file opengl_gal.h.

91  {
92  // is*Initialized flags, but it is enough for OpenGL to show up
93  return IsShownOnScreen();
94  }
bool KIGFX::GAL::IsTextMirrored ( ) const
inlineinherited

Returns true if text should displayed mirrored.

Definition at line 450 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_mirrored, and KIGFX::GAL::textProperties.

Referenced by BitmapText(), and KIGFX::STROKE_FONT::drawSingleLineText().

451  {
452  return textProperties.m_mirrored;
453  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
bool KIGFX::OPENGL_GAL::IsVisible ( ) const
inlineoverridevirtual

>

Returns true if the GAL canvas is visible on the screen.

Reimplemented from KIGFX::GAL.

Definition at line 97 of file opengl_gal.h.

98  {
99  return IsShownOnScreen();
100  }
void GAL::OnGalDisplayOptionsChanged ( const GAL_DISPLAY_OPTIONS aOptions)
overrideprotectedvirtualinherited

Handler for observer settings changes.

Implements KIGFX::GAL_DISPLAY_OPTIONS_OBSERVER.

Definition at line 88 of file graphics_abstraction_layer.cpp.

References KIGFX::GAL::updatedGalDisplayOptions().

89 {
90  // defer to the child class first
91  updatedGalDisplayOptions( aOptions );
92 
93  // there is no refresh to do at this level
94 }
virtual bool updatedGalDisplayOptions(const GAL_DISPLAY_OPTIONS &aOptions)
Function updatedGalDisplayOptions.
void OPENGL_GAL::onPaint ( wxPaintEvent &  aEvent)
private

This is the OnPaint event handler.

Parameters
aEventis the OnPaint event.

Definition at line 1677 of file opengl_gal.cpp.

References PostPaint().

Referenced by OPENGL_GAL().

1678 {
1679  PostPaint();
1680 }
void PostPaint()
Function PostPaint posts an event to m_paint_listener.
Definition: opengl_gal.h:257
void KIGFX::GAL::PopDepth ( )
inlineinherited

Restores previously stored drawing depth for the depth stack.

Definition at line 979 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthStack, and KIGFX::GAL::layerDepth.

980  {
981  layerDepth = depthStack.top();
982  depthStack.pop();
983  }
double layerDepth
The actual layer depth.
std::stack< double > depthStack
Stored depth values.
void KIGFX::OPENGL_GAL::PostPaint ( )
inline

Function PostPaint posts an event to m_paint_listener.

A post is used so that the actual drawing function can use a device context type that is not specific to the wxEVT_PAINT event.

Definition at line 257 of file opengl_gal.h.

References paintListener.

Referenced by onPaint().

258  {
259  if( paintListener )
260  {
261  wxPaintEvent redrawEvent;
262  wxPostEvent( paintListener, redrawEvent );
263  }
264  }
wxEvtHandler * paintListener
Definition: opengl_gal.h:297
void KIGFX::GAL::PushDepth ( )
inlineinherited

Stores current drawing depth on the depth stack.

Definition at line 971 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthStack, and KIGFX::GAL::layerDepth.

972  {
973  depthStack.push( layerDepth );
974  }
double layerDepth
The actual layer depth.
std::stack< double > depthStack
Stored depth values.
void GAL::ResetTextAttributes ( )
inherited

Reset text attributes to default styling.

Normally, custom attributes will be set individually after this, otherwise you can use SetTextAttributes()

Definition at line 153 of file graphics_abstraction_layer.cpp.

References GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_CENTER, KIGFX::GAL::SetFontBold(), KIGFX::GAL::SetFontItalic(), KIGFX::GAL::SetGlyphSize(), KIGFX::GAL::SetHorizontalJustify(), KIGFX::GAL::SetTextMirrored(), and KIGFX::GAL::SetVerticalJustify().

Referenced by KIGFX::PCB_PAINTER::draw(), and KIGFX::GAL::GAL().

154 {
155  // Tiny but non-zero - this will always need setting
156  // there is no built-in default
157  SetGlyphSize( { 1.0, 1.0 } );
158 
161 
162  SetFontBold( false );
163  SetFontItalic( false );
164  SetTextMirrored( false );
165 }
void SetFontItalic(const bool aItalic)
Set italic property of current font.
void SetFontBold(const bool aBold)
Set bold property of current font.
void SetTextMirrored(const bool aMirrored)
Set a mirrored property of text.
void SetVerticalJustify(const EDA_TEXT_VJUSTIFY_T aVerticalJustify)
Set the vertical justify for text drawing.
void SetGlyphSize(const VECTOR2D aGlyphSize)
Set the font glyph size.
void SetHorizontalJustify(const EDA_TEXT_HJUSTIFY_T aHorizontalJustify)
Set the horizontal justify for text drawing.
void OPENGL_GAL::ResizeScreen ( int  aWidth,
int  aHeight 
)
overridevirtual

Resizes the canvas.

Reimplemented from KIGFX::GAL.

Definition at line 1116 of file opengl_gal.cpp.

References compositor, isFramebufferInitialized, KIGFX::OPENGL_COMPOSITOR::Resize(), and KIGFX::GAL::screenSize.

1117 {
1118  screenSize = VECTOR2I( aWidth, aHeight );
1119 
1120 #ifdef RETINA_OPENGL_PATCH
1121  const float scaleFactor = GetBackingScaleFactor();
1122 #else
1123  const float scaleFactor = 1.0f;
1124 #endif
1125 
1126  // Resize framebuffers
1127  compositor->Resize( aWidth * scaleFactor, aHeight * scaleFactor );
1128  isFramebufferInitialized = false;
1129 
1130  wxGLCanvas::SetSize( aWidth, aHeight );
1131 }
VECTOR2< int > VECTOR2I
Definition: vector2d.h:589
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:311
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:320
virtual void Resize(unsigned int aWidth, unsigned int aHeight) override
Function Resize() clears the state of COMPOSITOR, so it has to be reinitialized again with the new di...
VECTOR2I screenSize
Screen size in screen coordinates.
void OPENGL_GAL::Restore ( )
overridevirtual

Restore the context.

Reimplemented from KIGFX::GAL.

Definition at line 1202 of file opengl_gal.cpp.

References currentManager, and KIGFX::VERTEX_MANAGER::PopMatrix().

Referenced by BitmapText(), DrawArc(), DrawArcSegment(), drawBitmapOverbar(), drawFilledSemiCircle(), DrawSegment(), and drawStrokedSemiCircle().

1203 {
1205 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void PopMatrix()
Function PopMatrix() pops the current transformation matrix stack.
void OPENGL_GAL::RestoreScreen ( )
overridevirtual

Restore the screen contents.

Reimplemented from KIGFX::GAL.

Definition at line 1267 of file opengl_gal.cpp.

1268 {
1269  wxASSERT_MSG( false, wxT( "Not implemented yet" ) );
1270 }
void OPENGL_GAL::Rotate ( double  aAngle)
overridevirtual

Rotate the context.

Parameters
aAngleis the rotation angle in radians.

Reimplemented from KIGFX::GAL.

Definition at line 1178 of file opengl_gal.cpp.

References currentManager, and KIGFX::VERTEX_MANAGER::Rotate().

1179 {
1180  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1181 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void Rotate(GLfloat aAngle, GLfloat aX, GLfloat aY, GLfloat aZ)
Function Rotate() multiplies the current matrix by a rotation matrix, so the newly vertices will be r...
void OPENGL_GAL::Save ( )
overridevirtual

Save the context.

Reimplemented from KIGFX::GAL.

Definition at line 1196 of file opengl_gal.cpp.

References currentManager, and KIGFX::VERTEX_MANAGER::PushMatrix().

Referenced by BitmapText(), DrawArc(), DrawArcSegment(), drawBitmapOverbar(), drawFilledSemiCircle(), DrawSegment(), and drawStrokedSemiCircle().

1197 {
1199 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void PushMatrix()
Function PushMatrix() pushes the current transformation matrix stack.
void OPENGL_GAL::SaveScreen ( )
overridevirtual

Save the screen contents.

Reimplemented from KIGFX::GAL.

Definition at line 1261 of file opengl_gal.cpp.

1262 {
1263  wxASSERT_MSG( false, wxT( "Not implemented yet" ) );
1264 }
void OPENGL_GAL::Scale ( const VECTOR2D aScale)
overridevirtual

Scale the context.

Parameters
aScaleis the scale factor for the x- and y-axis.

Reimplemented from KIGFX::GAL.

Definition at line 1190 of file opengl_gal.cpp.

References currentManager, KIGFX::VERTEX_MANAGER::Scale(), VECTOR2< T >::x, and VECTOR2< T >::y.

1191 {
1192  currentManager->Scale( aScale.x, aScale.y, 0.0f );
1193 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
void Scale(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Scale() multiplies the current matrix by a scaling matrix, so the newly vertices will be sca...
void KIGFX::GAL::SetAxesColor ( const COLOR4D aAxesColor)
inlineinherited

Set the axes color.

Parameters
aAxesColoris the color to draw the axes if enabled.

Definition at line 856 of file graphics_abstraction_layer.h.

References KIGFX::GAL::axesColor.

Referenced by KIGFX::CAIRO_GAL::CAIRO_GAL(), and OPENGL_GAL().

857  {
858  axesColor = aAxesColor;
859  }
COLOR4D axesColor
Color of the axes.
void KIGFX::GAL::SetAxesEnabled ( bool  aAxesEnabled)
inlineinherited

Enables drawing the axes.

Definition at line 864 of file graphics_abstraction_layer.h.

References KIGFX::GAL::axesEnabled.

Referenced by KIGFX::GAL::GAL(), and FOOTPRINT_EDIT_FRAME::UseGalCanvas().

865  {
866  axesEnabled = aAxesEnabled;
867  }
bool axesEnabled
Should the axes be drawn.
void KIGFX::GAL::SetClearColor ( const COLOR4D aColor)
inlineinherited

Definition at line 201 of file graphics_abstraction_layer.h.

References KIGFX::GAL::m_clearColor.

Referenced by EDA_DRAW_PANEL_GAL::onPaint().

202  {
203  m_clearColor = aColor;
204  }
void KIGFX::GAL::SetCoarseGrid ( int  aInterval)
inlineinherited

Draw every tick line wider.

Parameters
aIntervalincrease the width of every aInterval line, if 0 do not use this feature.

Definition at line 874 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridTick.

Referenced by KIGFX::GAL::GAL().

875  {
876  gridTick = aInterval;
877  }
int gridTick
Every tick line gets the double width.
void KIGFX::GAL::SetCursorColor ( const COLOR4D aCursorColor)
inlineinherited

Set the cursor color.

Parameters
aCursorColoris the color of the cursor.

Definition at line 947 of file graphics_abstraction_layer.h.

References KIGFX::GAL::cursorColor.

Referenced by KIGFX::GAL::GAL(), EDA_DRAW_PANEL_GAL::onPaint(), and PCB_DRAW_PANEL_GAL::UseColorScheme().

948  {
949  cursorColor = aCursorColor;
950  }
COLOR4D cursorColor
Cursor color.
void KIGFX::GAL::SetCursorEnabled ( bool  aCursorEnabled)
inlineinherited

Enable/disable cursor.

Parameters
aCursorEnabledis true if the cursor should be drawn, else false.

Definition at line 928 of file graphics_abstraction_layer.h.

References KIGFX::GAL::isCursorEnabled.

Referenced by KIGFX::GAL::GAL(), and KIGFX::VIEW_CONTROLS::ShowCursor().

929  {
930  isCursorEnabled = aCursorEnabled;
931  }
bool isCursorEnabled
Is the cursor enabled?
void KIGFX::GAL::SetDepthRange ( const VECTOR2D aDepthRange)
inlineinherited

Set the range of the layer depth.

Usually required for the OpenGL implementation, any object outside this range is not drawn.

Parameters
aDepthRangeis the depth range where component x is the near clipping plane and y is the far clipping plane.

Definition at line 696 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthRange.

Referenced by KIGFX::GAL::GAL().

697  {
698  depthRange = aDepthRange;
699  }
VECTOR2D depthRange
Range of the depth.
virtual void KIGFX::GAL::SetFillColor ( const COLOR4D aColor)
inlinevirtualinherited

Set the fill color.

Parameters
aColoris the color for filling.

Reimplemented in KIGFX::CAIRO_GAL.

Definition at line 246 of file graphics_abstraction_layer.h.

References KIGFX::GAL::fillColor.

Referenced by BeginDrawing(), KIGFX::WORKSHEET_VIEWITEM::draw(), KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::GAL::DrawGrid(), KIGFX::GAL::GAL(), KIGFX::PREVIEW::SIMPLE_OVERLAY_ITEM::setupGal(), and EDIT_POINTS::ViewDraw().

247  {
248  fillColor = aColor;
249  }
COLOR4D fillColor
The fill color.
void KIGFX::GAL::SetFlip ( bool  xAxis,
bool  yAxis 
)
inlineinherited

Sets flipping of the screen.

Parameters
xAxisis the flip flag for the X axis.
yAxisis the flip flag for the Y axis.

Definition at line 733 of file graphics_abstraction_layer.h.

References KIGFX::GAL::globalFlipX, and KIGFX::GAL::globalFlipY.

Referenced by KIGFX::GAL::GAL(), and KIGFX::VIEW::SetMirror().

734  {
735  globalFlipX = xAxis;
736  globalFlipY = yAxis;
737  }
bool globalFlipX
Flag for X axis flipping.
bool globalFlipY
Flag for Y axis flipping.
void KIGFX::GAL::SetFontBold ( const bool  aBold)
inlineinherited

Set bold property of current font.

Parameters
aBoldtells if the font should be bold or not.

Definition at line 406 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_bold, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), GraphicTextWidth(), EDA_TEXT::LenSize(), KIGFX::GAL::ResetTextAttributes(), and KIGFX::GAL::SetTextAttributes().

407  {
408  textProperties.m_bold = aBold;
409  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
void KIGFX::GAL::SetFontItalic ( const bool  aItalic)
inlineinherited

Set italic property of current font.

Parameters
aItalictells if the font should be italic or not.

Definition at line 424 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_italic, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), GraphicTextWidth(), EDA_TEXT::LenSize(), KIGFX::GAL::ResetTextAttributes(), and KIGFX::GAL::SetTextAttributes().

425  {
426  textProperties.m_italic = aItalic;
427  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
void KIGFX::GAL::SetGlyphSize ( const VECTOR2D  aGlyphSize)
inlineinherited

Set the font glyph size.

Parameters
aGlyphSizeis the new font glyph size.

Definition at line 388 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_glyphSize, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), GraphicTextWidth(), EDA_TEXT::LenSize(), KIGFX::GAL::ResetTextAttributes(), KIGFX::PREVIEW::SetConstantGlyphHeight(), and KIGFX::GAL::SetTextAttributes().

389  {
390  textProperties.m_glyphSize = aGlyphSize;
391  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
VECTOR2D m_glyphSize
Size of the glyphs.
void KIGFX::GAL::SetGridColor ( const COLOR4D aGridColor)
inlineinherited

Set the grid color.

Parameters
aGridColoris the grid color, it should have a low alpha value for the best effect.

Definition at line 846 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridColor.

Referenced by KIGFX::CAIRO_GAL::CAIRO_GAL(), PCB_LAYER_WIDGET::OnRenderColorChange(), OPENGL_GAL(), GERBVIEW_FRAME::SetGridColor(), and GERBVIEW_FRAME::UseGalCanvas().

847  {
848  gridColor = aGridColor;
849  }
COLOR4D gridColor
Color of the grid.
void KIGFX::GAL::SetGridOrigin ( const VECTOR2D aGridOrigin)
inlineinherited

Set the origin point for the grid.

Parameters
aGridOriginis a vector containing the grid origin point, in world coordinates.

Definition at line 807 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridOffset, KIGFX::GAL::gridOrigin, KIGFX::GAL::gridSize, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by PCB_BASE_EDIT_FRAME::SetBoard(), setOrigin(), and EDA_DRAW_FRAME::UseGalCanvas().

808  {
809  gridOrigin = aGridOrigin;
810 
811  if( gridSize.x == 0.0 || gridSize.y == 0.0 )
812  gridOffset = VECTOR2D(0.0, 0.0);
813  else
814  gridOffset = VECTOR2D( (long) gridOrigin.x % (long) gridSize.x,
815  (long) gridOrigin.y % (long) gridSize.y );
816  }
VECTOR2D gridOffset
The grid offset to compensate cursor position.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
VECTOR2D gridOrigin
The grid origin.
VECTOR2D gridSize
The grid size.
void KIGFX::GAL::SetGridSize ( const VECTOR2D aGridSize)
inlineinherited

Set the grid size.

Parameters
aGridSizeis a vector containing the grid size in x and y direction.

Definition at line 823 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridOffset, KIGFX::GAL::gridOrigin, KIGFX::GAL::gridSize, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DIALOG_PAD_PROPERTIES::prepareCanvas(), COMMON_TOOLS::updateGrid(), PCBNEW_CONTROL::updateGrid(), and EDA_DRAW_FRAME::UseGalCanvas().

824  {
825  gridSize = aGridSize;
826 
827  gridOffset = VECTOR2D( (long) gridOrigin.x % (long) gridSize.x,
828  (long) gridOrigin.y % (long) gridSize.y );
829  }
VECTOR2D gridOffset
The grid offset to compensate cursor position.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
VECTOR2D gridOrigin
The grid origin.
VECTOR2D gridSize
The grid size.
void KIGFX::GAL::SetGridVisibility ( bool  aVisibility)
inlineinherited

Sets the visibility setting of the grid.

Parameters
aVisibilityis the new visibility setting of the grid.

Definition at line 797 of file graphics_abstraction_layer.h.

References KIGFX::GAL::gridVisibility.

Referenced by KIGFX::GAL::GAL(), PCB_LAYER_WIDGET::OnRenderEnable(), GERBER_LAYER_WIDGET::OnRenderEnable(), EDA_DRAW_FRAME::OnToggleGridState(), and EDA_DRAW_FRAME::UseGalCanvas().

798  {
799  gridVisibility = aVisibility;
800  }
bool gridVisibility
Should the grid be shown.
void KIGFX::GAL::SetHorizontalJustify ( const EDA_TEXT_HJUSTIFY_T  aHorizontalJustify)
inlineinherited

Set the horizontal justify for text drawing.

Parameters
aHorizontalJustifyis the horizontal justify value.

Definition at line 460 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_horizontalJustify, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::GAL::ResetTextAttributes(), and KIGFX::GAL::SetTextAttributes().

461  {
462  textProperties.m_horizontalJustify = aHorizontalJustify;
463  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
EDA_TEXT_HJUSTIFY_T m_horizontalJustify
Horizontal justification.
virtual void KIGFX::GAL::SetIsFill ( bool  aIsFillEnabled)
inlinevirtualinherited

Enable/disable fill.

Parameters
aIsFillEnabledis true, when the graphics objects should be filled, else false.

Reimplemented in KIGFX::CAIRO_GAL.

Definition at line 226 of file graphics_abstraction_layer.h.

References KIGFX::GAL::isFillEnabled.

Referenced by KIGFX::WORKSHEET_VIEWITEM::draw(), KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::WORKSHEET_VIEWITEM::drawBorder(), KIGFX::GERBVIEW_PAINTER::drawFlashedShape(), DrawGraphicText(), KIGFX::GAL::DrawGrid(), KIGFX::GAL::GAL(), and KIGFX::PREVIEW::SIMPLE_OVERLAY_ITEM::setupGal().

227  {
228  isFillEnabled = aIsFillEnabled;
229  }
bool isFillEnabled
Is filling of graphic objects enabled ?
virtual void KIGFX::GAL::SetIsStroke ( bool  aIsStrokeEnabled)
inlinevirtualinherited
virtual void KIGFX::GAL::SetLayerDepth ( double  aLayerDepth)
inlinevirtualinherited

Set the depth of the layer (position on the z-axis)

Parameters
aLayerDepththe layer depth for the objects.

Reimplemented in KIGFX::CAIRO_GAL.

Definition at line 296 of file graphics_abstraction_layer.h.

References KIGFX::GAL::depthRange, KIGFX::GAL::layerDepth, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by KIGFX::VIEW::draw(), KIGFX::GAL::DrawGrid(), KIGFX::GAL::GAL(), KIGFX::VIEW::redrawRect(), KIGFX::CAIRO_GAL::SetLayerDepth(), KIGFX::VIEW::updateItemGeometry(), and ROUTER_PREVIEW_ITEM::ViewDraw().

297  {
298  assert( aLayerDepth <= depthRange.y );
299  assert( aLayerDepth >= depthRange.x );
300 
301  layerDepth = aLayerDepth;
302  }
double layerDepth
The actual layer depth.
VECTOR2D depthRange
Range of the depth.
void KIGFX::GAL::SetLookAtPoint ( const VECTOR2D aPoint)
inlineinherited

Set the Point in world space to look at.

This point corresponds with the center of the actual drawing area.

Parameters
aPointis the look at point (center of the actual drawing area).

Definition at line 653 of file graphics_abstraction_layer.h.

References KIGFX::GAL::lookAtPoint.

Referenced by KIGFX::GAL::GAL(), and KIGFX::VIEW::SetCenter().

654  {
655  lookAtPoint = aPoint;
656  }
VECTOR2D lookAtPoint
Point to be looked at in world space.
void KIGFX::OPENGL_GAL::SetMouseListener ( wxEvtHandler *  aMouseListener)
inline

Definition at line 266 of file opengl_gal.h.

References mouseListener.

267  {
268  mouseListener = aMouseListener;
269  }
wxEvtHandler * mouseListener
Definition: opengl_gal.h:296
virtual void KIGFX::OPENGL_GAL::SetNegativeDrawMode ( bool  aSetting)
inlineoverridevirtual

Sets negative draw mode in the renderer.

When negative mode is enabled, drawn items will subtract from previously drawn items. This is mainly needed for Gerber negative item support in Cairo, since unlike in OpenGL, objects drawn with zero opacity on top of other objects would not normally mask objects in Cairo. This method is a no-op in OpenGL.

Parameters
aSettingis true if negative mode should be enabled

Reimplemented from KIGFX::GAL.

Definition at line 243 of file opengl_gal.h.

243 {}
void KIGFX::OPENGL_GAL::SetPaintListener ( wxEvtHandler *  aPaintListener)
inline

Parameters passed to the GLU tesselator.

Definition at line 271 of file opengl_gal.h.

References paintListener.

void KIGFX::GAL::SetScreenDPI ( double  aScreenDPI)
inlineinherited

Set the dots per inch of the screen.

This value depends on the user screen, it should be configurable by the application. For instance a typical notebook with HD+ resolution (1600x900) has 106 DPI.

Parameters
aScreenDPIare the screen DPI.

Definition at line 641 of file graphics_abstraction_layer.h.

References KIGFX::GAL::screenDPI.

Referenced by KIGFX::GAL::GAL().

642  {
643  screenDPI = aScreenDPI;
644  }
double screenDPI
The dots per inch of the screen.
virtual void KIGFX::GAL::SetStrokeColor ( const COLOR4D aColor)
inlinevirtualinherited

Set the stroke color.

Parameters
aColoris the color for stroking the outline.

Reimplemented in KIGFX::CAIRO_GAL.

Definition at line 256 of file graphics_abstraction_layer.h.

References KIGFX::GAL::strokeColor.

Referenced by BeginDrawing(), KIGFX::WORKSHEET_VIEWITEM::draw(), KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::WORKSHEET_VIEWITEM::drawBorder(), KIGFX::GAL::DrawGrid(), KIGFX::GAL::GAL(), and KIGFX::PREVIEW::SIMPLE_OVERLAY_ITEM::setupGal().

257  {
258  strokeColor = aColor;
259  }
COLOR4D strokeColor
The color of the outlines.
void OPENGL_GAL::SetTarget ( RENDER_TARGET  aTarget)
overridevirtual

Sets the target for rendering.

Parameters
aTargetis the new target for rendering.

Reimplemented from KIGFX::GAL.

Definition at line 1273 of file opengl_gal.cpp.

References cachedManager, currentManager, currentTarget, nonCachedManager, overlayManager, KIGFX::TARGET_CACHED, KIGFX::TARGET_NONCACHED, and KIGFX::TARGET_OVERLAY.

Referenced by DrawGrid(), and OPENGL_GAL().

1274 {
1275  switch( aTarget )
1276  {
1277  default:
1278  case TARGET_CACHED:
1280  break;
1281 
1282  case TARGET_NONCACHED:
1284  break;
1285 
1286  case TARGET_OVERLAY:
1288  break;
1289  }
1290 
1291  currentTarget = aTarget;
1292 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:305
RENDER_TARGET currentTarget
Current rendering target.
Definition: opengl_gal.h:314
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:308
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:307
Auxiliary rendering target (noncached)
Definition: definitions.h:42
Items that may change while the view stays the same (noncached)
Definition: definitions.h:43
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
Main rendering target (cached)
Definition: definitions.h:41
void GAL::SetTextAttributes ( const EDA_TEXT aText)
virtualinherited

Loads attributes of the given text (bold/italic/underline/mirrored and so on).

Parameters
aTextis the text item.

Definition at line 142 of file graphics_abstraction_layer.cpp.

References EDA_TEXT::GetHorizJustify(), EDA_TEXT::GetTextSize(), EDA_TEXT::GetVertJustify(), EDA_TEXT::IsBold(), EDA_TEXT::IsItalic(), EDA_TEXT::IsMirrored(), KIGFX::GAL::SetFontBold(), KIGFX::GAL::SetFontItalic(), KIGFX::GAL::SetGlyphSize(), KIGFX::GAL::SetHorizontalJustify(), KIGFX::GAL::SetTextMirrored(), and KIGFX::GAL::SetVerticalJustify().

Referenced by KIGFX::WORKSHEET_VIEWITEM::draw(), KIGFX::PCB_PAINTER::draw(), and DrawGraphicText().

143 {
144  SetGlyphSize( VECTOR2D( aText->GetTextSize() ) );
147  SetFontBold( aText->IsBold() );
148  SetFontItalic( aText->IsItalic() );
149  SetTextMirrored( aText->IsMirrored() );
150 }
void SetFontItalic(const bool aItalic)
Set italic property of current font.
bool IsItalic() const
Definition: eda_text.h:170
EDA_TEXT_HJUSTIFY_T GetHorizJustify() const
Definition: eda_text.h:190
bool IsBold() const
Definition: eda_text.h:173
void SetFontBold(const bool aBold)
Set bold property of current font.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
void SetTextMirrored(const bool aMirrored)
Set a mirrored property of text.
void SetVerticalJustify(const EDA_TEXT_VJUSTIFY_T aVerticalJustify)
Set the vertical justify for text drawing.
EDA_TEXT_VJUSTIFY_T GetVertJustify() const
Definition: eda_text.h:191
bool IsMirrored() const
Definition: eda_text.h:179
void SetGlyphSize(const VECTOR2D aGlyphSize)
Set the font glyph size.
const wxSize & GetTextSize() const
Definition: eda_text.h:215
void SetHorizontalJustify(const EDA_TEXT_HJUSTIFY_T aHorizontalJustify)
Set the horizontal justify for text drawing.
void KIGFX::GAL::SetTextMirrored ( const bool  aMirrored)
inlineinherited

Set a mirrored property of text.

Parameters
aMirroredtells if the text should be mirrored or not.

Definition at line 442 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_mirrored, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::GAL::ResetTextAttributes(), and KIGFX::GAL::SetTextAttributes().

443  {
444  textProperties.m_mirrored = aMirrored;
445  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
void KIGFX::GAL::SetVerticalJustify ( const EDA_TEXT_VJUSTIFY_T  aVerticalJustify)
inlineinherited

Set the vertical justify for text drawing.

Parameters
aVerticalJustifyis the vertical justify value.

Definition at line 478 of file graphics_abstraction_layer.h.

References KIGFX::GAL::TEXT_PROPERTIES::m_verticalJustify, and KIGFX::GAL::textProperties.

Referenced by KIGFX::GERBVIEW_PAINTER::draw(), KIGFX::PCB_PAINTER::draw(), KIGFX::GAL::ResetTextAttributes(), and KIGFX::GAL::SetTextAttributes().

479  {
480  textProperties.m_verticalJustify = aVerticalJustify;
481  }
EDA_TEXT_VJUSTIFY_T m_verticalJustify
Vertical justification.
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
void KIGFX::GAL::SetWorldScreenMatrix ( const MATRIX3x3D aMatrix)
inlineinherited

Set the world <-> screen transformation matrix.

Parameters
aMatrixis the 3x3 world <-> screen transformation matrix.

Definition at line 614 of file graphics_abstraction_layer.h.

References KIGFX::GAL::worldScreenMatrix.

615  {
616  worldScreenMatrix = aMatrix;
617  }
MATRIX3x3D worldScreenMatrix
World transformation.
void KIGFX::GAL::SetWorldUnitLength ( double  aWorldUnitLength)
inlineinherited

Set the unit length.

This defines the length [inch] per one integer. For instance a value 0.001 means that the coordinate [1000, 1000] corresponds with a point at (1 inch, 1 inch) or 1 mil resolution per integer.

Parameters
aWorldUnitLengthis the world Unit length.

Definition at line 628 of file graphics_abstraction_layer.h.

References KIGFX::GAL::worldUnitLength.

Referenced by KIGFX::GAL::GAL().

629  {
630  worldUnitLength = aWorldUnitLength;
631  }
double worldUnitLength
The unit length of the world coordinates [inch].
void KIGFX::GAL::SetZoomFactor ( double  aZoomFactor)
inlineinherited

Set the zoom factor of the scene.

Parameters
aZoomFactoris the zoom factor.

Definition at line 673 of file graphics_abstraction_layer.h.

References KIGFX::GAL::zoomFactor.

Referenced by KIGFX::GAL::GAL(), and KIGFX::VIEW::SetScale().

674  {
675  zoomFactor = aZoomFactor;
676  }
double zoomFactor
The zoom factor.
bool OPENGL_GAL::Show ( bool  aShow)
overridevirtual

Shows/hides the GAL canvas.

Reimplemented from KIGFX::GAL.

Definition at line 1134 of file opengl_gal.cpp.

1135 {