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 HIDPI_GL_CANVAS 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...
 
virtual wxSize GetClientSize () const
 
virtual float GetBackingScaleFactor () const
 

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 (const 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...
 
void drawTriangulatedPolyset (const SHAPE_POLY_SET &aPoly)
 Draws a set of polygons with a cached triangulation. 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 UTF8 &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 64 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 301 of file opengl_gal.h.

typedef GAL KIGFX::OPENGL_GAL::super
private

Super class definition.

Definition at line 287 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 67 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.

69  :
70  GAL( aDisplayOptions ),
71  HIDPI_GL_CANVAS( aParent, wxID_ANY, (int*) glAttributes, wxDefaultPosition, wxDefaultSize,
72  wxEXPAND, aName ),
73  mouseListener( aMouseListener ), paintListener( aPaintListener ), currentManager( nullptr ),
74  cachedManager( nullptr ), nonCachedManager( nullptr ), overlayManager( nullptr ), mainBuffer( 0 ), overlayBuffer( 0 )
75 {
76 // IsDisplayAttr() handles WX_GL_{MAJOR,MINOR}_VERSION correctly only in 3.0.4
77 // starting with 3.1.0 one should use wxGLContext::IsOk() (done by GL_CONTEXT_MANAGER)
78 #if wxCHECK_VERSION( 3, 0, 3 ) and !wxCHECK_VERSION( 3, 1, 0 )
79  const int attr[] = { WX_GL_MAJOR_VERSION, 2, WX_GL_MINOR_VERSION, 1, 0 };
80 
81  if( !IsDisplaySupported( attr ) )
82  throw std::runtime_error( "OpenGL 2.1 or higher is required!" );
83 #endif /* wxCHECK_VERSION( 3, 0, 3 ) */
84 
85  if( glMainContext == NULL )
86  {
88 
89  if( !glMainContext )
90  throw std::runtime_error( "Could not create the main OpenGL context" );
91 
93  shader = new SHADER();
94  }
95  else
96  {
98 
99  if( !glPrivContext )
100  throw std::runtime_error( "Could not create a private OpenGL context" );
101  }
102 
103  ++instanceCounter;
104 
107 
108  // Initialize the flags
109  isFramebufferInitialized = false;
110  isBitmapFontInitialized = false;
111  isInitialized = false;
112  isGrouping = false;
113  groupCounter = 0;
114 
115  // Connecting the event handlers
116  Connect( wxEVT_PAINT, wxPaintEventHandler( OPENGL_GAL::onPaint ) );
117 
118  // Mouse events are skipped to the parent
119  Connect( wxEVT_MOTION, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
120  Connect( wxEVT_LEFT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
121  Connect( wxEVT_LEFT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
122  Connect( wxEVT_LEFT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
123  Connect( wxEVT_MIDDLE_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
124  Connect( wxEVT_MIDDLE_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
125  Connect( wxEVT_MIDDLE_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
126  Connect( wxEVT_RIGHT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
127  Connect( wxEVT_RIGHT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
128  Connect( wxEVT_RIGHT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
129  Connect( wxEVT_MOUSEWHEEL, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
130 #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
131  Connect( wxEVT_MAGNIFY, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
132 #endif
133 #if defined _WIN32 || defined _WIN64
134  Connect( wxEVT_ENTER_WINDOW, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
135 #endif
136 
137  SetSize( aParent->GetClientSize() );
138  screenSize = VECTOR2I( aParent->GetClientSize() );
139 
140  // Grid color settings are different in Cairo and OpenGL
141  SetGridColor( COLOR4D( 0.8, 0.8, 0.8, 0.1 ) );
142  SetAxesColor( COLOR4D( BLUE ) );
143 
144  // Tesselator initialization
145  tesselator = gluNewTess();
147 
148  if( tesselator == NULL )
149  throw std::runtime_error( "Could not create the tesselator" );
150 
151  gluTessProperty( tesselator, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_POSITIVE );
152 
154 }
Definition: colors.h:57
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:316
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:292
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:312
bool isBitmapFontInitialized
Is the shader set to use bitmap fonts?
Definition: opengl_gal.h:321
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:307
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:324
OPENGL_ANTIALIASING_MODE gl_antialiasing_mode
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
Auxiliary rendering target (noncached)
Definition: definitions.h:42
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:294
void SetAntialiasingMode(OPENGL_ANTIALIASING_MODE aMode)
HIDPI_GL_CANVAS(wxWindow *parent, wxWindowID id=wxID_ANY, const int *attribList=NULL, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxString &name=wxGLCanvasName, const wxPalette &palette=wxNullPalette)
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:310
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:311
wxEvtHandler * mouseListener
Definition: opengl_gal.h:295
void SetAxesColor(const COLOR4D &aAxesColor)
Set the axes color.
static const int glAttributes[]
Definition: opengl_gal.cpp:58
void onPaint(wxPaintEvent &aEvent)
This is the OnPaint event handler.
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:319
Class SHADER provides the access to the OpenGL shaders.
Definition: shader.h:74
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:331
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
wxEvtHandler * paintListener
Definition: opengl_gal.h:296
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:322
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:303
VECTOR2I screenSize
Screen size in screen coordinates.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
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 157 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().

158 {
160 
161  --instanceCounter;
162  glFlush();
163  gluDeleteTess( tesselator );
164  ClearCache();
165 
166  delete compositor;
167 
168  if( isInitialized )
169  {
170  delete cachedManager;
171  delete nonCachedManager;
172  delete overlayManager;
173  }
174 
176 
177  // If it was the main context, then it will be deleted
178  // when the last OpenGL GAL instance is destroyed (a few lines below)
181 
182  // Are we destroying the last GAL instance?
183  if( instanceCounter == 0 )
184  {
186 
187  if( isBitmapFontLoaded )
188  {
189  glDeleteTextures( 1, &fontTexture );
190  isBitmapFontLoaded = false;
191  }
192 
193  delete shader;
194 
197  glMainContext = NULL;
198  }
199 }
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:316
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:292
static GLuint fontTexture
Bitmap font texture handle (shared)
Definition: opengl_gal.h:298
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:307
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:306
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:294
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:310
virtual void ClearCache() override
Delete all data created during caching of graphic items.
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:331
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:305
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:322
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
void DestroyCtx(wxGLContext *aContext)
Function DestroyCtx destroys a managed OpenGL context.
static bool isBitmapFontLoaded
Is the bitmap font texture loaded?
Definition: opengl_gal.h:320

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 223 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.

Referenced by IsVisible().

224 {
225  if( !IsShownOnScreen() )
226  return;
227 
228 #ifdef __WXDEBUG__
229  PROF_COUNTER totalRealTime( "OPENGL_GAL::BeginDrawing()", true );
230 #endif /* __WXDEBUG__ */
231 
232  if( !isInitialized )
233  init();
234 
236 
237  // Set up the view port
238  glMatrixMode( GL_PROJECTION );
239  glLoadIdentity();
240 
241  // Create the screen transformation (Do the RH-LH conversion here)
242  glOrtho( 0, (GLint) screenSize.x, (GLsizei) screenSize.y, 0, -depthRange.x, -depthRange.y );
243 
245  {
246  try
247  {
248  // Prepare rendering target buffers
252  }
253  catch( std::runtime_error& )
254  {
256  throw; // DRAW_PANEL_GAL will handle it
257  }
258 
260  }
261 
262  compositor->Begin();
263 
264  // Disable 2D Textures
265  glDisable( GL_TEXTURE_2D );
266 
267  glShadeModel( GL_FLAT );
268 
269  // Enable the depth buffer
270  glEnable( GL_DEPTH_TEST );
271  glDepthFunc( GL_LESS );
272 
273  // Setup blending, required for transparent objects
274  glEnable( GL_BLEND );
275  glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
276 
277  glMatrixMode( GL_MODELVIEW );
278 
279  // Set up the world <-> screen transformation
281  GLdouble matrixData[16] = { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 };
282  matrixData[0] = worldScreenMatrix.m_data[0][0];
283  matrixData[1] = worldScreenMatrix.m_data[1][0];
284  matrixData[2] = worldScreenMatrix.m_data[2][0];
285  matrixData[4] = worldScreenMatrix.m_data[0][1];
286  matrixData[5] = worldScreenMatrix.m_data[1][1];
287  matrixData[6] = worldScreenMatrix.m_data[2][1];
288  matrixData[12] = worldScreenMatrix.m_data[0][2];
289  matrixData[13] = worldScreenMatrix.m_data[1][2];
290  matrixData[14] = worldScreenMatrix.m_data[2][2];
291  glLoadMatrixd( matrixData );
292 
293  // Set defaults
296 
297  // Remove all previously stored items
300 
304 
306  {
307  // Keep bitmap font texture always bound to the second texturing unit
308  const GLint FONT_TEXTURE_UNIT = 2;
309 
310  // Either load the font atlas to video memory, or simply bind it to a texture unit
311  if( !isBitmapFontLoaded )
312  {
313  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
314  glGenTextures( 1, &fontTexture );
315  glBindTexture( GL_TEXTURE_2D, fontTexture );
316  glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB8, font_image.width, font_image.height,
317  0, GL_RGB, GL_UNSIGNED_BYTE, font_image.pixels );
318  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
319  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
320  checkGlError( "loading bitmap font" );
321 
322  glActiveTexture( GL_TEXTURE0 );
323 
324  isBitmapFontLoaded = true;
325  }
326  else
327  {
328  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
329  glBindTexture( GL_TEXTURE_2D, fontTexture );
330  glActiveTexture( GL_TEXTURE0 );
331  }
332 
333  // Set shader parameter
334  GLint ufm_fontTexture = shader->AddParameter( "fontTexture" );
335  GLint ufm_fontTextureWidth = shader->AddParameter( "fontTextureWidth" );
336  shader->Use();
337  shader->SetParameter( ufm_fontTexture, (int) FONT_TEXTURE_UNIT );
338  shader->SetParameter( ufm_fontTextureWidth, (int) font_image.width );
339  shader->Deactivate();
340  checkGlError( "setting bitmap font sampler as shader parameter" );
341 
343  }
344 
345  // Something betreen BeginDrawing and EndDrawing seems to depend on
346  // this texture unit being active, but it does not assure it itself.
347  glActiveTexture( GL_TEXTURE0 );
348 
349  // Unbind buffers - set compositor for direct drawing
351 
352 #ifdef __WXDEBUG__
353  totalRealTime.Stop();
354  wxLogTrace( "GAL_PROFILE",
355  wxT( "OPENGL_GAL::BeginDrawing(): %.1f ms" ), totalRealTime.msecs() );
356 #endif /* __WXDEBUG__ */
357 }
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:316
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:312
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:321
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:298
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:307
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:306
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:310
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:311
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:319
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:305
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:322
VECTOR2I screenSize
Screen size in screen coordinates.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
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:320
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 1270 of file opengl_gal.cpp.

References getNewGroupNumber(), groups, and isGrouping.

Referenced by IsVisible().

1271 {
1272  isGrouping = true;
1273 
1274  std::shared_ptr<VERTEX_ITEM> newItem = std::make_shared<VERTEX_ITEM>( *cachedManager );
1275  int groupNumber = getNewGroupNumber();
1276  groups.insert( std::make_pair( groupNumber, newItem ) );
1277 
1278  return groupNumber;
1279 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:324
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:302
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 394 of file opengl_gal.cpp.

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

Referenced by IsVisible().

395 {
396  if( !IsShownOnScreen() )
397  return;
398 
399  if( !isInitialized )
400  init();
401 
403  cachedManager->Map();
404 }
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:305
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:322
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
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 902 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, i, KIGFX::GAL::IsTextMirrored(), KIGFX::GAL::layerDepth, ProcessOverbars(), 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.

Referenced by IsVisible().

904 {
905  wxASSERT_MSG( !IsTextMirrored(), "No support for mirrored text using bitmap fonts." );
906 
907  auto processedText = ProcessOverbars( aText );
908  const auto& text = processedText.first;
909  const auto& overbars = processedText.second;
910 
911  // Compute text size, so it can be properly justified
912  VECTOR2D textSize;
913  float commonOffset;
914  std::tie( textSize, commonOffset ) = computeBitmapTextSize( text );
915 
916  const double SCALE = 1.4 * GetGlyphSize().y / textSize.y;
917  bool overbar = false;
918 
919  int overbarLength = 0;
920  double overbarHeight = textSize.y;
921 
922  Save();
923 
925  currentManager->Translate( aPosition.x, aPosition.y, layerDepth );
926  currentManager->Rotate( aRotationAngle, 0.0f, 0.0f, -1.0f );
927 
928  double sx = SCALE * ( globalFlipX ? -1.0 : 1.0 );
929  double sy = SCALE * ( globalFlipY ? -1.0 : 1.0 );
930 
931  currentManager->Scale( sx, sy, 0 );
932  currentManager->Translate( 0, -commonOffset, 0 );
933 
934  switch( GetHorizontalJustify() )
935  {
937  Translate( VECTOR2D( -textSize.x / 2.0, 0 ) );
938  break;
939 
941  //if( !IsTextMirrored() )
942  Translate( VECTOR2D( -textSize.x, 0 ) );
943  break;
944 
946  //if( IsTextMirrored() )
947  //Translate( VECTOR2D( -textSize.x, 0 ) );
948  break;
949  }
950 
951  switch( GetVerticalJustify() )
952  {
954  Translate( VECTOR2D( 0, -textSize.y ) );
955  overbarHeight = -textSize.y / 2.0;
956  break;
957 
959  Translate( VECTOR2D( 0, -textSize.y / 2.0 ) );
960  overbarHeight = 0;
961  break;
962 
964  break;
965  }
966 
967  int i = 0;
968 
969  for( UTF8::uni_iter chIt = text.ubegin(), end = text.uend(); chIt < end; ++chIt )
970  {
971  unsigned int c = *chIt;
972  wxASSERT_MSG( c != '\n' && c != '\r', wxT( "No support for multiline bitmap text yet" ) );
973 
974  // Handle overbar
975  if( overbars[i] && !overbar )
976  {
977  overbar = true; // beginning of an overbar
978  }
979  else if( overbar && !overbars[i] )
980  {
981  overbar = false; // end of an overbar
982  drawBitmapOverbar( overbarLength, overbarHeight );
983  overbarLength = 0;
984  }
985 
986  if( overbar )
987  overbarLength += drawBitmapChar( c );
988  else
989  drawBitmapChar( c );
990 
991  ++i;
992  }
993 
994  // Handle the case when overbar is active till the end of the drawn text
995  currentManager->Translate( 0, commonOffset, 0 );
996 
997  if( overbar && overbarLength > 0 )
998  drawBitmapOverbar( overbarLength, overbarHeight );
999 
1000  Restore();
1001 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
EDA_TEXT_HJUSTIFY_T GetHorizontalJustify() const
Returns current text horizontal justification setting.
EDA_TEXT_VJUSTIFY_T GetVerticalJustify() const
Returns current text vertical justification setting.
std::pair< UTF8, std::vector< bool > > ProcessOverbars(const UTF8 &aText)
Processes a text to extract the raw text and overbar flags.
Definition: text_utils.cpp:27
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:292
bool globalFlipX
Flag for X axis flipping.
double b
Blue component.
Definition: color4d.h:293
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:294
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
std::pair< VECTOR2D, float > computeBitmapTextSize(const UTF8 &aText) const
Computes a size of text drawn using bitmap font with current text setting applied.
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...
class uni_iter is a non-mutating iterator that walks through unicode code points in the UTF8 encoded ...
Definition: utf8.h:207
bool globalFlipY
Flag for Y axis flipping.
int drawBitmapChar(unsigned long aChar)
Draws a single character using bitmap font.
size_t i
Definition: json11.cpp:597
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...
double r
Red component.
Definition: color4d.h:291
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 1747 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().

1748 {
1749  if( !IsCursorEnabled() )
1750  return;
1751 
1753 
1754  const int cursorSize = fullscreenCursor ? 8000 : 80;
1755 
1756  VECTOR2D cursorBegin = cursorPosition - cursorSize / ( 2 * worldScale );
1757  VECTOR2D cursorEnd = cursorPosition + cursorSize / ( 2 * worldScale );
1758  VECTOR2D cursorCenter = ( cursorBegin + cursorEnd ) / 2;
1759 
1760  const COLOR4D cColor = getCursorColor();
1761  const COLOR4D color( cColor.r * cColor.a, cColor.g * cColor.a,
1762  cColor.b * cColor.a, 1.0 );
1763 
1764  glActiveTexture( GL_TEXTURE0 );
1765  glDisable( GL_TEXTURE_2D );
1766  glLineWidth( 1.0 );
1767  glColor4d( color.r, color.g, color.b, color.a );
1768 
1769  glBegin( GL_LINES );
1770  glVertex2d( cursorCenter.x, cursorBegin.y );
1771  glVertex2d( cursorCenter.x, cursorEnd.y );
1772 
1773  glVertex2d( cursorBegin.x, cursorCenter.y );
1774  glVertex2d( cursorEnd.x, cursorCenter.y );
1775  glEnd();
1776 }
bool IsCursorEnabled() const
Returns information about cursor visibility.
VECTOR2D cursorPosition
Current cursor position (world coordinates)
int color
Definition: DXF_plotter.cpp:62
double g
Green component.
Definition: color4d.h:292
static const unsigned int DIRECT_RENDERING
double b
Blue component.
Definition: color4d.h:293
double a
Alpha component.
Definition: color4d.h:294
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:310
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:291
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 454 of file opengl_gal.h.

References init(), and min.

Referenced by DrawArc(), and DrawArcSegment().

455  {
456  // Bigger arcs need smaller alpha increment to make them look smooth
457  return std::min( 1e6 / aRadius, 2.0 * M_PI / CIRCLE_POINTS );
458  }
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 1295 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1296 {
1297  cachedManager->ChangeItemColor( *groups[aGroupNumber], aNewColor );
1298 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:302
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
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 1301 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1302 {
1303  cachedManager->ChangeItemDepth( *groups[aGroupNumber], aDepth );
1304 }
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:302
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
void OPENGL_GAL::ClearCache ( )
overridevirtual

Delete all data created during caching of graphic items.

Reimplemented from KIGFX::GAL.

Definition at line 1314 of file opengl_gal.cpp.

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

Referenced by IsVisible(), and ~OPENGL_GAL().

1315 {
1316  groups.clear();
1317 
1318  if( isInitialized )
1319  cachedManager->Clear();
1320 }
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:302
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:322
void OPENGL_GAL::ClearScreen ( )
overridevirtual

Clear the screen.

Parameters
aColoris the color used for clearing.

Reimplemented from KIGFX::GAL.

Definition at line 1212 of file opengl_gal.cpp.

References compositor, KIGFX::OPENGL_COMPOSITOR::DIRECT_RENDERING, and KIGFX::OPENGL_COMPOSITOR::SetBuffer().

Referenced by IsVisible().

1213 {
1214  // Clear screen
1216  // NOTE: Black used here instead of m_clearColor; it will be composited later
1217  glClearColor( 0, 0, 0, 1 );
1218  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
1219 }
static const unsigned int DIRECT_RENDERING
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:310
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
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 1363 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.

Referenced by IsVisible().

1364 {
1365  // Save the current state
1366  unsigned int oldTarget = compositor->GetBuffer();
1367 
1368  switch( aTarget )
1369  {
1370  // Cached and noncached items are rendered to the same buffer
1371  default:
1372  case TARGET_CACHED:
1373  case TARGET_NONCACHED:
1375  break;
1376 
1377  case TARGET_OVERLAY:
1379  break;
1380  }
1381 
1382 
1383  if( aTarget != TARGET_OVERLAY )
1385  else
1387 
1388  // Restore the previous state
1389  compositor->SetBuffer( oldTarget );
1390 }
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:312
static const COLOR4D BLACK
Definition: color4d.h:301
Auxiliary rendering target (noncached)
Definition: definitions.h:42
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:310
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:311
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 UTF8 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 1699 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, UTF8::ubegin(), UTF8::uend(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by BitmapText().

1700 {
1701  VECTOR2D textSize( 0, 0 );
1702  float commonOffset = std::numeric_limits<float>::max();
1703  static const auto defaultGlyph = LookupGlyph( '(' ); // for strange chars
1704 
1705  for( UTF8::uni_iter chIt = aText.ubegin(), end = aText.uend(); chIt < end; ++chIt )
1706  {
1707  unsigned int c = *chIt;
1708 
1709  const FONT_GLYPH_TYPE* glyph = LookupGlyph( c );
1710  wxASSERT( c == ' ' || glyph ); // space is not in the atlas
1711 
1712  // a few chars
1713  if( !glyph || // Not coded in font
1714  c == '-' || c == '_' ) // Strange size of these 2 chars
1715  {
1716  glyph = defaultGlyph;
1717  }
1718 
1719  if( glyph )
1720  {
1721  textSize.x += glyph->advance;
1722  }
1723  }
1724 
1725  textSize.y = std::max<float>( textSize.y, font_information.max_y - defaultGlyph->miny );
1726  commonOffset = std::min<float>( font_information.max_y - defaultGlyph->maxy, commonOffset );
1727  textSize.y -= commonOffset;
1728 
1729  return std::make_pair( textSize, commonOffset );
1730 }
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
uni_iter ubegin() const
Function ubegin returns a uni_iter initialized to the start of "this" UTF8 byte sequence.
Definition: utf8.h:285
FONT_INFO_TYPE font_information
Definition: gl_resources.cpp:3
class uni_iter is a non-mutating iterator that walks through unicode code points in the UTF8 encoded ...
Definition: utf8.h:207
uni_iter uend() const
Function uend returns a uni_iter initialized to the end of "this" UTF8 byte sequence.
Definition: utf8.h:294
#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 KIGFX::GAL::computeWorldScale(), 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::computeMinGridSpacing(), and 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::GAL::ClearCache(), 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 1307 of file opengl_gal.cpp.

References groups.

Referenced by IsVisible().

1308 {
1309  // Frees memory in the container as well
1310  groups.erase( aGroupNumber );
1311 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:302
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 544 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.

Referenced by IsVisible().

546 {
547  if( aRadius <= 0 )
548  return;
549 
550  // Swap the angles, if start angle is greater than end angle
551  SWAP( aStartAngle, >, aEndAngle );
552 
553  const double alphaIncrement = calcAngleStep( aRadius );
554 
555  Save();
556  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
557 
558  if( isStrokeEnabled )
559  {
561 
562  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
563  double alpha;
564 
565  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
566  {
567  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
568  DrawLine( p, p_next );
569 
570  p = p_next;
571  }
572 
573  // Draw the last missing part
574  if( alpha != aEndAngle )
575  {
576  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
577  DrawLine( p, p_last );
578  }
579  }
580 
581  if( isFillEnabled )
582  {
583  double alpha;
586 
587  // Triangle fan
588  for( alpha = aStartAngle; ( alpha + alphaIncrement ) < aEndAngle; )
589  {
590  currentManager->Reserve( 3 );
591  currentManager->Vertex( 0.0, 0.0, 0.0 );
592  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
593  alpha += alphaIncrement;
594  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
595  }
596 
597  // The last missing triangle
598  const VECTOR2D endPoint( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
599 
600  currentManager->Reserve( 3 );
601  currentManager->Vertex( 0.0, 0.0, 0.0 );
602  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, 0.0 );
603  currentManager->Vertex( endPoint.x, endPoint.y, 0.0 );
604  }
605 
606  Restore();
607 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:454
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:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:294
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:417
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:291
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 610 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, calcAngleStep(), KIGFX::VERTEX_MANAGER::Color(), currentManager, DrawCircle(), 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.

Referenced by IsVisible().

612 {
613  if( aRadius <= 0 )
614  {
615  // Arcs of zero radius are a circle of aWidth diameter
616  if( aWidth > 0 )
617  DrawCircle( aCenterPoint, aWidth / 2.0 );
618 
619  return;
620  }
621 
622  // Swap the angles, if start angle is greater than end angle
623  SWAP( aStartAngle, >, aEndAngle );
624 
625  const double alphaIncrement = calcAngleStep( aRadius );
626 
627  Save();
628  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
629 
630  if( isStrokeEnabled )
631  {
633 
634  double width = aWidth / 2.0;
635  VECTOR2D startPoint( cos( aStartAngle ) * aRadius,
636  sin( aStartAngle ) * aRadius );
637  VECTOR2D endPoint( cos( aEndAngle ) * aRadius,
638  sin( aEndAngle ) * aRadius );
639 
640  drawStrokedSemiCircle( startPoint, width, aStartAngle + M_PI );
641  drawStrokedSemiCircle( endPoint, width, aEndAngle );
642 
643  VECTOR2D pOuter( cos( aStartAngle ) * ( aRadius + width ),
644  sin( aStartAngle ) * ( aRadius + width ) );
645 
646  VECTOR2D pInner( cos( aStartAngle ) * ( aRadius - width ),
647  sin( aStartAngle ) * ( aRadius - width ) );
648 
649  double alpha;
650 
651  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
652  {
653  VECTOR2D pNextOuter( cos( alpha ) * ( aRadius + width ),
654  sin( alpha ) * ( aRadius + width ) );
655  VECTOR2D pNextInner( cos( alpha ) * ( aRadius - width ),
656  sin( alpha ) * ( aRadius - width ) );
657 
658  DrawLine( pOuter, pNextOuter );
659  DrawLine( pInner, pNextInner );
660 
661  pOuter = pNextOuter;
662  pInner = pNextInner;
663  }
664 
665  // Draw the last missing part
666  if( alpha != aEndAngle )
667  {
668  VECTOR2D pLastOuter( cos( aEndAngle ) * ( aRadius + width ),
669  sin( aEndAngle ) * ( aRadius + width ) );
670  VECTOR2D pLastInner( cos( aEndAngle ) * ( aRadius - width ),
671  sin( aEndAngle ) * ( aRadius - width ) );
672 
673  DrawLine( pOuter, pLastOuter );
674  DrawLine( pInner, pLastInner );
675  }
676  }
677 
678  if( isFillEnabled )
679  {
681  SetLineWidth( aWidth );
682 
683  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
684  double alpha;
685 
686  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
687  {
688  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
689  DrawLine( p, p_next );
690 
691  p = p_next;
692  }
693 
694  // Draw the last missing part
695  if( alpha != aEndAngle )
696  {
697  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
698  DrawLine( p, p_last );
699  }
700  }
701 
702  Restore();
703 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:454
virtual void Restore() override
Restore the context.
double g
Green component.
Definition: color4d.h:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:294
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:417
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:291
virtual void DrawCircle(const VECTOR2D &aCenterPoint, double aRadius) override
Draw a circle using world coordinates.
Definition: opengl_gal.cpp:484
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 1602 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, H, 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().

1603 {
1604  const float TEX_X = font_image.width;
1605  const float TEX_Y = font_image.height;
1606 
1607  // handle space
1608  if( aChar == ' ' )
1609  {
1610  const FONT_GLYPH_TYPE* g = LookupGlyph( 'x' );
1611  wxASSERT( g );
1612  Translate( VECTOR2D( g->advance, 0 ) );
1613  return g->advance;
1614  }
1615 
1616  const FONT_GLYPH_TYPE* glyph = LookupGlyph( aChar );
1617  wxASSERT( glyph );
1618 
1619  if( !glyph )
1620  return 0;
1621 
1622  const float X = glyph->atlas_x + font_information.smooth_pixels;
1623  const float Y = glyph->atlas_y + font_information.smooth_pixels;
1624  const float XOFF = glyph->minx;
1625 
1626  // adjust for height rounding
1627  const float round_adjust = ( glyph->maxy - glyph->miny )
1628  - float( glyph->atlas_h - font_information.smooth_pixels * 2 );
1629  const float top_adjust = font_information.max_y - glyph->maxy;
1630  const float YOFF = round_adjust + top_adjust;
1631  const float W = glyph->atlas_w - font_information.smooth_pixels *2;
1632  const float H = glyph->atlas_h - font_information.smooth_pixels *2;
1633  const float B = 0;
1634 
1635  currentManager->Reserve( 6 );
1636  Translate( VECTOR2D( XOFF, YOFF ) );
1637  /* Glyph:
1638  * v0 v1
1639  * +--+
1640  * | /|
1641  * |/ |
1642  * +--+
1643  * v2 v3
1644  */
1645  currentManager->Shader( SHADER_FONT, X / TEX_X, ( Y + H ) / TEX_Y );
1646  currentManager->Vertex( -B, -B, 0 ); // v0
1647 
1648  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1649  currentManager->Vertex( W + B, -B, 0 ); // v1
1650 
1651  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1652  currentManager->Vertex( -B, H + B, 0 ); // v2
1653 
1654 
1655  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1656  currentManager->Vertex( W + B, -B, 0 ); // v1
1657 
1658  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1659  currentManager->Vertex( -B, H + B, 0 ); // v2
1660 
1661  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, Y / TEX_Y );
1662  currentManager->Vertex( W + B, H + B, 0 ); // v3
1663 
1664  Translate( VECTOR2D( -XOFF + glyph->advance, -YOFF ) );
1665 
1666  return glyph->advance;
1667 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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
#define H(x, y, z)
Definition: md5_hash.cpp:17
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 1670 of file opengl_gal.cpp.

References KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, KIGFX::COLOR4D::g, H, 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().

1671 {
1672  // To draw an overbar, simply draw an overbar
1673  const FONT_GLYPH_TYPE* glyph = LookupGlyph( '_' );
1674  wxCHECK( glyph, /* void */ );
1675 
1676  const float H = glyph->maxy - glyph->miny;
1677 
1678  Save();
1679 
1680  Translate( VECTOR2D( -aLength, -aHeight-1.5*H ) );
1681 
1682  currentManager->Reserve( 6 );
1684 
1685  currentManager->Shader( 0 );
1686 
1687  currentManager->Vertex( 0, 0, 0 ); // v0
1688  currentManager->Vertex( aLength, 0, 0 ); // v1
1689  currentManager->Vertex( 0, H, 0 ); // v2
1690 
1691  currentManager->Vertex( aLength, 0, 0 ); // v1
1692  currentManager->Vertex( 0, H, 0 ); // v2
1693  currentManager->Vertex( aLength, H, 0 ); // v3
1694 
1695  Restore();
1696 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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:292
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
double b
Blue component.
Definition: color4d.h:293
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...
#define H(x, y, z)
Definition: md5_hash.cpp:17
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:291
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 484 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.

Referenced by DrawArcSegment(), and IsVisible().

485 {
486  if( isFillEnabled )
487  {
488  currentManager->Reserve( 3 );
490 
491  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
492  * Parameters given to Shader() are indices of the triangle's vertices
493  * (if you want to understand more, check the vertex shader source [shader.vert]).
494  * Shader uses this coordinates to determine if fragments are inside the circle or not.
495  * v2
496  * /\
497  * //\\
498  * v0 /_\/_\ v1
499  */
501  currentManager->Vertex( aCenterPoint.x - aRadius * sqrt( 3.0f ), // v0
502  aCenterPoint.y - aRadius, layerDepth );
503 
505  currentManager->Vertex( aCenterPoint.x + aRadius * sqrt( 3.0f), // v1
506  aCenterPoint.y - aRadius, layerDepth );
507 
509  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y + aRadius * 2.0f, // v2
510  layerDepth );
511  }
512 
513  if( isStrokeEnabled )
514  {
515  currentManager->Reserve( 3 );
517 
518  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
519  * Parameters given to Shader() are indices of the triangle's vertices
520  * (if you want to understand more, check the vertex shader source [shader.vert]).
521  * and the line width. Shader uses this coordinates to determine if fragments are
522  * inside the circle or not.
523  * v2
524  * /\
525  * //\\
526  * v0 /_\/_\ v1
527  */
528  double outerRadius = aRadius + ( lineWidth / 2 );
530  currentManager->Vertex( aCenterPoint.x - outerRadius * sqrt( 3.0f ), // v0
531  aCenterPoint.y - outerRadius, layerDepth );
532 
534  currentManager->Vertex( aCenterPoint.x + outerRadius * sqrt( 3.0f ), // v1
535  aCenterPoint.y - outerRadius, layerDepth );
536 
538  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y + outerRadius * 2.0f, // v2
539  layerDepth );
540  }
541 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
double lineWidth
The line width.
double a
Alpha component.
Definition: color4d.h:294
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:291
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 1393 of file opengl_gal.cpp.

References KIGFX::GAL::cursorPosition.

Referenced by SetNegativeDrawMode().

1394 {
1395  // Now we should only store the position of the mouse cursor
1396  // The real drawing routines are in blitCursor()
1397  //VECTOR2D screenCursor = worldScreenMatrix * aCursorPosition;
1398  //cursorPosition = screenWorldMatrix * VECTOR2D( screenCursor.x, screenCursor.y );
1399  cursorPosition = aCursorPosition;
1400 }
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 870 of file opengl_gal.cpp.

References CURVE_POINTS, DrawPolyline(), and i.

Referenced by IsVisible().

872 {
873  // FIXME The drawing quality needs to be improved
874  // FIXME Perhaps choose a quad/triangle strip instead?
875  // FIXME Brute force method, use a better (recursive?) algorithm
876 
877  std::deque<VECTOR2D> pointList;
878 
879  double t = 0.0;
880  double dt = 1.0 / (double) CURVE_POINTS;
881 
882  for( int i = 0; i <= CURVE_POINTS; i++ )
883  {
884  double omt = 1.0 - t;
885  double omt2 = omt * omt;
886  double omt3 = omt * omt2;
887  double t2 = t * t;
888  double t3 = t * t2;
889 
890  VECTOR2D vertex = omt3 * aStartPoint + 3.0 * t * omt2 * aControlPointA
891  + 3.0 * t2 * omt * aControlPointB + t3 * aEndPoint;
892 
893  pointList.push_back( vertex );
894 
895  t += dt;
896  }
897 
898  DrawPolyline( pointList );
899 }
static const int CURVE_POINTS
The number of points for curve approximation.
Definition: opengl_gal.h:290
virtual void DrawPolyline(const std::deque< VECTOR2D > &aPointList) override
Draw a polyline.
Definition: opengl_gal.cpp:744
size_t i
Definition: json11.cpp:597
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 1471 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().

1473 {
1474  Save();
1475 
1476  currentManager->Reserve( 3 );
1477  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1478  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1479 
1480  /* Draw a triangle that contains the semicircle, then shade it to leave only
1481  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1482  * (if you want to understand more, check the vertex shader source [shader.vert]).
1483  * Shader uses these coordinates to determine if fragments are inside the semicircle or not.
1484  * v2
1485  * /\
1486  * /__\
1487  * v0 //__\\ v1
1488  */
1490  currentManager->Vertex( -aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1491 
1493  currentManager->Vertex( aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1494 
1496  currentManager->Vertex( 0.0f, aRadius * 2.0f, layerDepth ); // v2
1497 
1498  Restore();
1499 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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 1004 of file opengl_gal.cpp.

References KIGFX::COLOR4D::a, 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, i, 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.

Referenced by IsVisible().

1005 {
1008 
1009  // sub-pixel lines all render the same
1010  double minorLineWidth = std::max( 1.0, gridLineWidth );
1011  double majorLineWidth = minorLineWidth * 2.0;
1012 
1013  // Draw the axis and grid
1014  // For the drawing the start points, end points and increments have
1015  // to be calculated in world coordinates
1016  VECTOR2D worldStartPoint = screenWorldMatrix * VECTOR2D( 0.0, 0.0 );
1017  VECTOR2D worldEndPoint = screenWorldMatrix * VECTOR2D( screenSize );
1018 
1019  // Draw axes if desired
1020  if( axesEnabled )
1021  {
1022  glLineWidth( minorLineWidth );
1023  glColor4d( axesColor.r, axesColor.g, axesColor.b, axesColor.a );
1024 
1025  glBegin( GL_LINES );
1026  glVertex2d( worldStartPoint.x, 0 );
1027  glVertex2d( worldEndPoint.x, 0 );
1028  glEnd();
1029 
1030  glBegin( GL_LINES );
1031  glVertex2d( 0, worldStartPoint.y );
1032  glVertex2d( 0, worldEndPoint.y );
1033  glEnd();
1034  }
1035 
1036  if( !gridVisibility )
1037  return;
1038 
1039  int gridScreenSizeDense = KiROUND( gridSize.x * worldScale );
1040  int gridScreenSizeCoarse = KiROUND( gridSize.x * static_cast<double>( gridTick ) * worldScale );
1041 
1042  const double gridThreshold = computeMinGridSpacing();
1043 
1044  // Check if the grid would not be too dense
1045  if( std::max( gridScreenSizeDense, gridScreenSizeCoarse ) < gridThreshold )
1046  return;
1047 
1048  // Compute grid staring and ending indexes to draw grid points on the
1049  // visible screen area
1050  // Note: later any point coordinate will be offsetted by gridOrigin
1051  int gridStartX = KiROUND( ( worldStartPoint.x - gridOrigin.x ) / gridSize.x );
1052  int gridEndX = KiROUND( ( worldEndPoint.x - gridOrigin.x ) / gridSize.x );
1053  int gridStartY = KiROUND( ( worldStartPoint.y - gridOrigin.y ) / gridSize.y );
1054  int gridEndY = KiROUND( ( worldEndPoint.y - gridOrigin.y ) / gridSize.y );
1055 
1056  // Ensure start coordinate > end coordinate
1057  if( gridStartX > gridEndX )
1058  std::swap( gridStartX, gridEndX );
1059 
1060  if( gridStartY > gridEndY )
1061  std::swap( gridStartY, gridEndY );
1062 
1063  // Ensure the grid fills the screen
1064  --gridStartX; ++gridEndX;
1065  --gridStartY; ++gridEndY;
1066 
1067  glDisable( GL_DEPTH_TEST );
1068  glDisable( GL_TEXTURE_2D );
1069 
1070  if( gridStyle == GRID_STYLE::DOTS )
1071  {
1072  glEnable( GL_STENCIL_TEST );
1073  glStencilFunc( GL_ALWAYS, 1, 1 );
1074  glStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
1075  glColor4d( 0.0, 0.0, 0.0, 0.0 );
1076  }
1077  else
1078  {
1079  glColor4d( gridColor.r, gridColor.g, gridColor.b, gridColor.a );
1080  }
1081 
1083  {
1084  glLineWidth( minorLineWidth );
1085 
1086  // calculate a line len = 2 minorLineWidth, in internal unit value
1087  // (in fact the size of cross is lineLen*2)
1088  int lineLen = KiROUND( minorLineWidth / worldScale * 2 );
1089 
1090  // Vertical positions
1091  for( int j = gridStartY; j <= gridEndY; j++ )
1092  {
1093  if( ( j % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1094  || gridScreenSizeDense > gridThreshold )
1095  {
1096  int posY = j * gridSize.y + gridOrigin.y;
1097 
1098  // Horizontal positions
1099  for( int i = gridStartX; i <= gridEndX; i++ )
1100  {
1101  if( ( i % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1102  || gridScreenSizeDense > gridThreshold )
1103  {
1104  int posX = i * gridSize.x + gridOrigin.x;
1105 
1106  glBegin( GL_LINES );
1107  glVertex2d( posX -lineLen, posY );
1108  glVertex2d( posX + lineLen, posY );
1109  glVertex2d( posX, posY - lineLen );
1110  glVertex2d( posX, posY + lineLen );
1111  glEnd();
1112  }
1113  }
1114  }
1115  }
1116  }
1117  else
1118  {
1119  // Vertical lines
1120  for( int j = gridStartY; j <= gridEndY; j++ )
1121  {
1122  const double y = j * gridSize.y + gridOrigin.y;
1123 
1124  // If axes are drawn, skip the lines that would cover them
1125  if( axesEnabled && y == 0 )
1126  continue;
1127 
1128  if( j % gridTick == 0 && gridScreenSizeDense > gridThreshold )
1129  glLineWidth( majorLineWidth );
1130  else
1131  glLineWidth( minorLineWidth );
1132 
1133  if( ( j % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1134  || gridScreenSizeDense > gridThreshold )
1135  {
1136  glBegin( GL_LINES );
1137  glVertex2d( gridStartX * gridSize.x + gridOrigin.x, y );
1138  glVertex2d( gridEndX * gridSize.x + gridOrigin.x, y );
1139  glEnd();
1140  }
1141  }
1142 
1143  if( gridStyle == GRID_STYLE::DOTS )
1144  {
1145  glStencilFunc( GL_NOTEQUAL, 0, 1 );
1146  glColor4d( gridColor.r, gridColor.g, gridColor.b, gridColor.a );
1147  }
1148 
1149  // Horizontal lines
1150  for( int i = gridStartX; i <= gridEndX; i++ )
1151  {
1152  const double x = i * gridSize.x + gridOrigin.x;
1153 
1154  // If axes are drawn, skip the lines that would cover them
1155  if( axesEnabled && x == 0 )
1156  continue;
1157 
1158  if( i % gridTick == 0 && gridScreenSizeDense > gridThreshold )
1159  glLineWidth( majorLineWidth );
1160  else
1161  glLineWidth( minorLineWidth );
1162 
1163  if( ( i % gridTick == 0 && gridScreenSizeCoarse > gridThreshold )
1164  || gridScreenSizeDense > gridThreshold )
1165  {
1166  glBegin( GL_LINES );
1167  glVertex2d( x, gridStartY * gridSize.y + gridOrigin.y );
1168  glVertex2d( x, gridEndY * gridSize.y + gridOrigin.y );
1169  glEnd();
1170  }
1171  }
1172 
1173  if( gridStyle == GRID_STYLE::DOTS )
1174  glDisable( GL_STENCIL_TEST );
1175  }
1176 
1177  glEnable( GL_DEPTH_TEST );
1178  glEnable( GL_TEXTURE_2D );
1179 }
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)
Round a floating point number to an integer using "round halfway cases away from zero".
Definition: common.h:106
GRID_STYLE gridStyle
Grid display style.
double g
Green component.
Definition: color4d.h:292
MATRIX3x3D screenWorldMatrix
Screen transformation.
double b
Blue component.
Definition: color4d.h:293
Auxiliary rendering target (noncached)
Definition: definitions.h:42
double a
Alpha component.
Definition: color4d.h:294
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:310
VECTOR2< double > VECTOR2D
Definition: vector2d.h:588
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:311
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.
size_t i
Definition: json11.cpp:597
VECTOR2I screenSize
Screen size in screen coordinates.
double r
Red component.
Definition: color4d.h:291
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 1289 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1290 {
1291  cachedManager->DrawItem( *groups[aGroupNumber] );
1292 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:302
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
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 417 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(), DrawArcSegment(), and IsVisible().

418 {
419  const VECTOR2D startEndVector = aEndPoint - aStartPoint;
420  double lineAngle = startEndVector.Angle();
421 
423 
424  drawLineQuad( aStartPoint, aEndPoint );
425 
426  // Line caps
427  if( lineWidth > 1.0 )
428  {
429  drawFilledSemiCircle( aStartPoint, lineWidth / 2, lineAngle + M_PI / 2 );
430  drawFilledSemiCircle( aEndPoint, lineWidth / 2, lineAngle - M_PI / 2 );
431  }
432 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:292
double b
Blue component.
Definition: color4d.h:293
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:294
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:291
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 1403 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().

1404 {
1405  /* Helper drawing: ____--- v3 ^
1406  * ____---- ... \ \
1407  * ____---- ... \ end \
1408  * v1 ____---- ... ____---- \ width
1409  * ---- ...___---- \ \
1410  * \ ___...-- \ v
1411  * \ ____----... ____---- v2
1412  * ---- ... ____----
1413  * start \ ... ____----
1414  * \... ____----
1415  * ----
1416  * v0
1417  * dots mark triangles' hypotenuses
1418  */
1419 
1420  VECTOR2D startEndVector = aEndPoint - aStartPoint;
1421  double lineLength = startEndVector.EuclideanNorm();
1422 
1423  if( lineLength <= 0.0 )
1424  return;
1425 
1426  double scale = 0.5 * lineWidth / lineLength;
1427 
1428  // The perpendicular vector also needs transformations
1429  glm::vec4 vector = currentManager->GetTransformation() *
1430  glm::vec4( -startEndVector.y * scale, startEndVector.x * scale, 0.0, 0.0 );
1431 
1432  currentManager->Reserve( 6 );
1433 
1434  // Line width is maintained by the vertex shader
1435  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1436  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
1437 
1438  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1439  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v1
1440 
1441  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1442  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
1443 
1444  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1445  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
1446 
1447  currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
1448  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
1449 
1450  currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
1451  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v2
1452 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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 767 of file opengl_gal.cpp.

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

Referenced by IsVisible().

768 {
769  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aPointList.size()] );
770  GLdouble* ptr = points.get();
771 
772  for( const VECTOR2D& p : aPointList )
773  {
774  *ptr++ = p.x;
775  *ptr++ = p.y;
776  *ptr++ = layerDepth;
777  }
778 
779  drawPolygon( points.get(), aPointList.size() );
780 }
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 783 of file opengl_gal.cpp.

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

784 {
785  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aListSize] );
786  GLdouble* target = points.get();
787  const VECTOR2D* src = aPointList;
788 
789  for( int i = 0; i < aListSize; ++i )
790  {
791  *target++ = src->x;
792  *target++ = src->y;
793  *target++ = layerDepth;
794  ++src;
795  }
796 
797  drawPolygon( points.get(), aListSize );
798 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.
size_t i
Definition: json11.cpp:597
void OPENGL_GAL::DrawPolygon ( const SHAPE_POLY_SET aPolySet)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 838 of file opengl_gal.cpp.

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

839 {
840  if ( aPolySet.IsTriangulationUpToDate() )
841  {
842  drawTriangulatedPolyset( aPolySet );
843  return;
844  }
845 
846  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
847  {
848  const SHAPE_LINE_CHAIN& outline = aPolySet.COutline( j );
849 
850  if( outline.SegmentCount() == 0 )
851  continue;
852 
853  const int pointCount = outline.SegmentCount() + 1;
854  std::unique_ptr<GLdouble[]> points( new GLdouble[3 * pointCount] );
855  GLdouble* ptr = points.get();
856 
857  for( int i = 0; i < pointCount; ++i )
858  {
859  const VECTOR2I& p = outline.CPoint( i );
860  *ptr++ = p.x;
861  *ptr++ = p.y;
862  *ptr++ = layerDepth;
863  }
864 
865  drawPolygon( points.get(), pointCount );
866  }
867 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.
bool IsTriangulationUpToDate() const
int OutlineCount() const
Returns the number of outlines in the set
const SHAPE_LINE_CHAIN & COutline(int aIndex) const
void drawTriangulatedPolyset(const SHAPE_POLY_SET &aPoly)
Draws a set of polygons with a cached triangulation.
Definition: opengl_gal.cpp:800
Class SHAPE_LINE_CHAIN.
size_t i
Definition: json11.cpp:597
const VECTOR2I & CPoint(int aIndex) const
Function CPoint()
int SegmentCount() const
Function SegmentCount()
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 1536 of file opengl_gal.cpp.

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

Referenced by DrawPolygon().

1537 {
1538  if( isFillEnabled )
1539  {
1542 
1543  // Any non convex polygon needs to be tesselated
1544  // for this purpose the GLU standard functions are used
1545  TessParams params = { currentManager, tessIntersects };
1546  gluTessBeginPolygon( tesselator, &params );
1547  gluTessBeginContour( tesselator );
1548 
1549  GLdouble* point = aPoints;
1550 
1551  for( int i = 0; i < aPointCount; ++i )
1552  {
1553  gluTessVertex( tesselator, point, point );
1554  point += 3; // 3 coordinates
1555  }
1556 
1557  gluTessEndContour( tesselator );
1558  gluTessEndPolygon( tesselator );
1559 
1560  // Free allocated intersecting points
1561  tessIntersects.clear();
1562  }
1563 
1564  if( isStrokeEnabled )
1565  {
1566  drawPolyline( [&](int idx) { return VECTOR2D( aPoints[idx * 3], aPoints[idx * 3 + 1] ); },
1567  aPointCount );
1568  }
1569 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
double g
Green component.
Definition: color4d.h:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
double a
Alpha component.
Definition: color4d.h:294
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:331
bool isFillEnabled
Is filling of graphic objects enabled ?
std::deque< boost::shared_array< GLdouble > > tessIntersects
Storage for intersecting points.
Definition: opengl_gal.h:333
size_t i
Definition: json11.cpp:597
void drawPolyline(const std::function< VECTOR2D(int)> &aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
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:291
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 744 of file opengl_gal.cpp.

References drawPolyline().

Referenced by DrawCurve(), DrawRectangle(), drawTriangulatedPolyset(), and IsVisible().

745 {
746  drawPolyline( [&](int idx) { return aPointList[idx]; }, aPointList.size() );
747 }
void drawPolyline(const 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 750 of file opengl_gal.cpp.

References drawPolyline().

751 {
752  drawPolyline( [&](int idx) { return aPointList[idx]; }, aListSize );
753 }
void drawPolyline(const 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 756 of file opengl_gal.cpp.

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

757 {
758  auto numPoints = aLineChain.PointCount();
759 
760  if( aLineChain.IsClosed() )
761  numPoints += 1;
762 
763  drawPolyline( [&](int idx) { return aLineChain.CPoint(idx); }, numPoints );
764 }
int PointCount() const
Function PointCount()
bool IsClosed() const
Function IsClosed()
void drawPolyline(const std::function< VECTOR2D(int)> &aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
const VECTOR2I & CPoint(int aIndex) const
Function CPoint()
void OPENGL_GAL::drawPolyline ( const 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 1572 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, i, KIGFX::GAL::lineWidth, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

Referenced by drawPolygon(), and DrawPolyline().

1573 {
1574  if( aPointCount < 2 )
1575  return;
1576 
1578  int i;
1579 
1580  for( i = 1; i < aPointCount; ++i )
1581  {
1582  auto start = aPointGetter( i - 1 );
1583  auto end = aPointGetter( i );
1584  const VECTOR2D startEndVector = ( end - start );
1585  double lineAngle = startEndVector.Angle();
1586 
1587  drawLineQuad( start, end );
1588 
1589  // There is no need to draw line caps on both ends of polyline's segments
1590  drawFilledSemiCircle( start, lineWidth / 2, lineAngle + M_PI / 2 );
1591  }
1592 
1593  // ..and now - draw the ending cap
1594  auto start = aPointGetter( i - 2 );
1595  auto end = aPointGetter( i - 1 );
1596  const VECTOR2D startEndVector = ( end - start );
1597  double lineAngle = startEndVector.Angle();
1598  drawFilledSemiCircle( end, lineWidth / 2, lineAngle - M_PI / 2 );
1599 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:292
double b
Blue component.
Definition: color4d.h:293
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:294
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...
size_t i
Definition: json11.cpp:597
double r
Red component.
Definition: color4d.h:291
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 706 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.

Referenced by IsVisible().

707 {
708  // Compute the diagonal points of the rectangle
709  VECTOR2D diagonalPointA( aEndPoint.x, aStartPoint.y );
710  VECTOR2D diagonalPointB( aStartPoint.x, aEndPoint.y );
711 
712  // Stroke the outline
713  if( isStrokeEnabled )
714  {
716 
717  std::deque<VECTOR2D> pointList;
718  pointList.push_back( aStartPoint );
719  pointList.push_back( diagonalPointA );
720  pointList.push_back( aEndPoint );
721  pointList.push_back( diagonalPointB );
722  pointList.push_back( aStartPoint );
723  DrawPolyline( pointList );
724  }
725 
726  // Fill the rectangle
727  if( isFillEnabled )
728  {
729  currentManager->Reserve( 6 );
732 
733  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
734  currentManager->Vertex( diagonalPointA.x, diagonalPointA.y, layerDepth );
735  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
736 
737  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
738  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
739  currentManager->Vertex( diagonalPointB.x, diagonalPointB.y, layerDepth );
740  }
741 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
double a
Alpha component.
Definition: color4d.h:294
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:744
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:291
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 435 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().

Referenced by IsVisible().

437 {
438  VECTOR2D startEndVector = aEndPoint - aStartPoint;
439  double lineAngle = startEndVector.Angle();
440 
441  // Width must be nonzero for anything to appear
442  if( aWidth <= 0 )
443  aWidth = 1.0;
444 
445  if( isFillEnabled )
446  {
447  // Filled tracks
449 
450  SetLineWidth( aWidth );
451  drawLineQuad( aStartPoint, aEndPoint );
452 
453  // Draw line caps
454  drawFilledSemiCircle( aStartPoint, aWidth / 2, lineAngle + M_PI / 2 );
455  drawFilledSemiCircle( aEndPoint, aWidth / 2, lineAngle - M_PI / 2 );
456  }
457  else
458  {
459  // Outlined tracks
460  double lineLength = startEndVector.EuclideanNorm();
461 
463 
464  Save();
465 
466  currentManager->Translate( aStartPoint.x, aStartPoint.y, 0.0 );
467  currentManager->Rotate( lineAngle, 0.0f, 0.0f, 1.0f );
468 
469  drawLineQuad( VECTOR2D( 0.0, aWidth / 2.0 ),
470  VECTOR2D( lineLength, aWidth / 2.0 ) );
471 
472  drawLineQuad( VECTOR2D( 0.0, -aWidth / 2.0 ),
473  VECTOR2D( lineLength, -aWidth / 2.0 ) );
474 
475  // Draw line caps
476  drawStrokedSemiCircle( VECTOR2D( 0.0, 0.0 ), aWidth / 2, M_PI / 2 );
477  drawStrokedSemiCircle( VECTOR2D( lineLength, 0.0 ), aWidth / 2, -M_PI / 2 );
478 
479  Restore();
480  }
481 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
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:294
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:291
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 1455 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.

1456 {
1457  if( isFillEnabled )
1458  {
1460  drawFilledSemiCircle( aCenterPoint, aRadius, aAngle );
1461  }
1462 
1463  if( isStrokeEnabled )
1464  {
1466  drawStrokedSemiCircle( aCenterPoint, aRadius, aAngle );
1467  }
1468 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
double g
Green component.
Definition: color4d.h:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
double a
Alpha component.
Definition: color4d.h:294
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:291
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 1502 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().

1504 {
1505  double outerRadius = aRadius + ( lineWidth / 2 );
1506 
1507  Save();
1508 
1509  currentManager->Reserve( 3 );
1510  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1511  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1512 
1513  /* Draw a triangle that contains the semicircle, then shade it to leave only
1514  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1515  * (if you want to understand more, check the vertex shader source [shader.vert]), the
1516  * radius and the line width. Shader uses these coordinates to determine if fragments are
1517  * inside the semicircle or not.
1518  * v2
1519  * /\
1520  * /__\
1521  * v0 //__\\ v1
1522  */
1524  currentManager->Vertex( -outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1525 
1527  currentManager->Vertex( outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1528 
1530  currentManager->Vertex( 0.0f, outerRadius * 2.0f, layerDepth ); // v2
1531 
1532  Restore();
1533 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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::drawTriangulatedPolyset ( const SHAPE_POLY_SET aPoly)
private

Draws a set of polygons with a cached triangulation.

Way faster than drawPolygon.

Definition at line 800 of file opengl_gal.cpp.

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

Referenced by DrawPolygon().

801 {
804 
805 
806  if ( isFillEnabled )
807  {
808  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
809  {
810  auto triPoly = aPolySet.TriangulatedPolygon( j );
811 
812  for( int i = 0; i < triPoly->GetTriangleCount(); i++ )
813  {
814  VECTOR2I a, b, c;
815  triPoly->GetTriangle( i ,a,b,c);
816  currentManager->Vertex( a.x, a.y, layerDepth );
817  currentManager->Vertex( b.x, b.y, layerDepth );
818  currentManager->Vertex( c.x, c.y, layerDepth );
819  }
820  }
821  }
822 
823  if( isStrokeEnabled )
824  {
825  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
826  {
827  const auto& poly = aPolySet.Polygon( j );
828 
829  for( const auto& lc : poly )
830  {
831  DrawPolyline( lc );
832  }
833  }
834  }
835 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
double layerDepth
The actual layer depth.
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:292
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:293
double a
Alpha component.
Definition: color4d.h:294
bool isStrokeEnabled
Are the outlines stroked ?
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:744
size_t i
Definition: json11.cpp:597
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:291
void OPENGL_GAL::EndDrawing ( )
overridevirtual

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

Reimplemented from KIGFX::GAL.

Definition at line 360 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().

Referenced by IsVisible().

361 {
362 #ifdef __WXDEBUG__
363  PROF_COUNTER totalRealTime( "OPENGL_GAL::EndDrawing()", true );
364 #endif /* __WXDEBUG__ */
365 
366  // Cached & non-cached containers are rendered to the same buffer
370 
371  // Overlay container is rendered to a different buffer
374 
375  // Be sure that the framebuffer is not colorized (happens on specific GPU&drivers combinations)
376  glColor4d( 1.0, 1.0, 1.0, 1.0 );
377 
378  // Draw the remaining contents, blit the rendering targets to the screen, swap the buffers
381  compositor->Present();
382  blitCursor();
383 
384  SwapBuffers();
386 
387 #ifdef __WXDEBUG__
388  totalRealTime.Stop();
389  wxLogTrace( "GAL_PROFILE", wxT( "OPENGL_GAL::EndDrawing(): %.1f ms" ), totalRealTime.msecs() );
390 #endif /* __WXDEBUG__ */
391 }
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:312
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:307
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:306
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:310
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:311
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:305
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
void OPENGL_GAL::EndGroup ( )
overridevirtual

End the group.

Reimplemented from KIGFX::GAL.

Definition at line 1282 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1283 {
1285  isGrouping = false;
1286 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:324
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:305
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 407 of file opengl_gal.cpp.

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

Referenced by IsVisible().

408 {
409  if( !isInitialized )
410  return;
411 
412  cachedManager->Unmap();
414 }
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:305
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:322
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
void OPENGL_GAL::Flush ( )
overridevirtual

Force all remaining objects to be drawn.

Reimplemented from KIGFX::GAL.

Definition at line 1206 of file opengl_gal.cpp.

Referenced by IsVisible().

1207 {
1208  glFlush();
1209 }
float HIDPI_GL_CANVAS::GetBackingScaleFactor ( ) const
virtualinherited

Definition at line 59 of file hidpi_gl_canvas.cpp.

Referenced by HIDPI_GL_CANVAS::GetClientSize(), and ResizeScreen().

60 {
61 #ifdef RETINA_OPENGL_PATCH
62  // this is ugly, but original method isn't marked const although it doesn't modify anything
63  // => clean up when it officially has arrived in wxWidgets
64  return static_cast< wxGLCanvas* >( const_cast< HIDPI_GL_CANVAS* >( this ))->GetBackingScaleFactor();
65 #else
66  return 1.0f;
67 #endif
68 }
wxGLCanvas wrapper for HiDPI/Retina support.
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  }
wxSize HIDPI_GL_CANVAS::GetClientSize ( ) const
virtualinherited

Definition at line 46 of file hidpi_gl_canvas.cpp.

References HIDPI_GL_CANVAS::GetBackingScaleFactor().

Referenced by C3D_MODEL_VIEWER::OnMouseMove(), EDA_3D_CANVAS::OnMouseMove(), C3D_MODEL_VIEWER::OnPaint(), and EDA_3D_CANVAS::OnPaint().

47 {
48  wxSize size = wxGLCanvas::GetClientSize();
49 
50 #ifdef RETINA_OPENGL_PATCH
51  const float scaleFactor = GetBackingScaleFactor();
52  size.x *= scaleFactor;
53  size.y *= scaleFactor;
54 #endif
55 
56  return size;
57 }
virtual float GetBackingScaleFactor() const
COLOR4D GAL::getCursorColor ( ) const
protectedinherited

Gets the actual cursor color to draw.

Definition at line 421 of file graphics_abstraction_layer.cpp.

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

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

422 {
423  auto color = cursorColor;
424 
425  // dim the cursor if it's only on because it was forced
426  // (this helps to provide a hint for active tools)
427  if( !isCursorEnabled )
428  {
429  color.a = color.a * 0.5;
430  }
431 
432  return color;
433 }
bool isCursorEnabled
Is the cursor enabled?
int color
Definition: DXF_plotter.cpp:62
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::DrawGrid(), KIGFX::GAL::GetGridPoint(), and 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 399 of file graphics_abstraction_layer.cpp.

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

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

400 {
401 #if 0
402  // This old code expects a non zero grid size, which can be wrong here.
403  return VECTOR2D( KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x,
404  KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y );
405 #else
406  // if grid size == 0.0 there is no grid, so use aPoint as grid reference position
407  double cx = gridSize.x > 0.0 ? KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x
408  : aPoint.x;
409  double cy = gridSize.y > 0.0 ? KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y
410  : aPoint.y;
411 
412  return VECTOR2D( cx, cy );
413 #endif
414 }
VECTOR2D gridOffset
The grid offset to compensate cursor position.
static int KiROUND(double v)
Round a floating point number to an integer 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 1779 of file opengl_gal.cpp.

References groupCounter, groups, and max.

Referenced by BeginGroup().

1780 {
1781  wxASSERT_MSG( groups.size() < std::numeric_limits<unsigned int>::max(),
1782  wxT( "There are no free slots to store a group" ) );
1783 
1784  while( groups.find( groupCounter ) != groups.end() )
1785  {
1786  groupCounter++;
1787  }
1788 
1789  return groupCounter++;
1790 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:302
#define max(a, b)
Definition: auxiliary.h:86
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:303
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(), KIGFX::GAL::ResetTextAttributes(), KIGFX::GAL::SetTextAttributes(), 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
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 1357 of file opengl_gal.cpp.

References currentTarget.

Referenced by IsVisible().

1358 {
1359  return currentTarget;
1360 }
RENDER_TARGET currentTarget
Current rendering target.
Definition: opengl_gal.h:313
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 KIGFX::GAL::BitmapText(), 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 COMMON_TOOLS::doZoomToPreset(), EDA_DRAW_PANEL_GAL::GetLegacyZoom(), EDA_DRAW_FRAME::GetZoomLevelIndicator(), and EDA_DRAW_FRAME::UseGalCanvas().

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

Basic OpenGL initialization.

Definition at line 1793 of file opengl_gal.cpp.

References cachedManager, enableGlDebug(), err, 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(), BeginUpdate(), and calcAngleStep().

1794 {
1795  wxASSERT( IsShownOnScreen() );
1796 
1798 
1799  GLenum err = glewInit();
1800 
1801  try
1802  {
1803  if( GLEW_OK != err )
1804  throw std::runtime_error( (const char*) glewGetErrorString( err ) );
1805 
1806  // Check the OpenGL version (minimum 2.1 is required)
1807  if( !GLEW_VERSION_2_1 )
1808  throw std::runtime_error( "OpenGL 2.1 or higher is required!" );
1809 
1810 #if defined (__LINUX__) // calling enableGlDebug crashes opengl on some OS (OSX and some Windows)
1811 #ifdef DEBUG
1812  if( GLEW_ARB_debug_output )
1813  enableGlDebug( true );
1814 #endif
1815 #endif
1816 
1817  // Framebuffers have to be supported
1818  if( !GLEW_EXT_framebuffer_object )
1819  throw std::runtime_error( "Framebuffer objects are not supported!" );
1820 
1821  // Vertex buffer has to be supported
1822  if( !GLEW_ARB_vertex_buffer_object )
1823  throw std::runtime_error( "Vertex buffer objects are not supported!" );
1824 
1825  // Prepare shaders
1827  throw std::runtime_error( "Cannot compile vertex shader!" );
1828 
1830  throw std::runtime_error( "Cannot compile fragment shader!" );
1831 
1832  if( !shader->IsLinked() && !shader->Link() )
1833  throw std::runtime_error( "Cannot link the shaders!" );
1834 
1835  // Check if video card supports textures big enough to fit the font atlas
1836  int maxTextureSize;
1837  glGetIntegerv( GL_MAX_TEXTURE_SIZE, &maxTextureSize );
1838 
1839  if( maxTextureSize < (int) font_image.width || maxTextureSize < (int)font_image.height )
1840  {
1841  // TODO implement software texture scaling
1842  // for bitmap fonts and use a higher resolution texture?
1843  throw std::runtime_error( "Requested texture size is not supported" );
1844  }
1845  }
1846  catch( std::runtime_error& )
1847  {
1849  throw;
1850  }
1851 
1852  cachedManager = new VERTEX_MANAGER( true );
1853  nonCachedManager = new VERTEX_MANAGER( false );
1854  overlayManager = new VERTEX_MANAGER( false );
1855 
1856  // Make VBOs use shaders
1860 
1862  isInitialized = true;
1863 }
static SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:316
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:307
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.
void enableGlDebug(bool aEnable)
Enables/disables OpenGL driver messages output.
Definition: utils.cpp:103
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:306
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
string & err
Definition: json11.cpp:598
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:305
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:322
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:293
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 89 of file opengl_gal.h.

90  {
91  // is*Initialized flags, but it is enough for OpenGL to show up
92  return IsShownOnScreen();
93  }
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
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 1733 of file opengl_gal.cpp.

References PostPaint().

Referenced by OPENGL_GAL().

1734 {
1735  PostPaint();
1736 }
void PostPaint()
Function PostPaint posts an event to m_paint_listener.
Definition: opengl_gal.h:256
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 256 of file opengl_gal.h.

References paintListener.

Referenced by onPaint().

257  {
258  if( paintListener )
259  {
260  wxPaintEvent redrawEvent;
261  wxPostEvent( paintListener, redrawEvent );
262  }
263  }
wxEvtHandler * paintListener
Definition: opengl_gal.h:296
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(), KIGFX::GAL::GAL(), and KIGFX::GAL::GetOverbarVerticalPosition().

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 1182 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1183 {
1184  screenSize = VECTOR2I( aWidth, aHeight );
1185 
1186  // Resize framebuffers
1187  const float scaleFactor = GetBackingScaleFactor();
1188  compositor->Resize( aWidth * scaleFactor, aHeight * scaleFactor );
1189  isFramebufferInitialized = false;
1190 
1191  wxGLCanvas::SetSize( aWidth, aHeight );
1192 }
VECTOR2< int > VECTOR2I
Definition: vector2d.h:589
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:310
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:319
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...
virtual float GetBackingScaleFactor() const
VECTOR2I screenSize
Screen size in screen coordinates.
void OPENGL_GAL::Restore ( )
overridevirtual

Restore the context.

Reimplemented from KIGFX::GAL.

Definition at line 1264 of file opengl_gal.cpp.

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

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

1265 {
1267 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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 1329 of file opengl_gal.cpp.

Referenced by IsVisible().

1330 {
1331  wxASSERT_MSG( false, wxT( "Not implemented yet" ) );
1332 }
void OPENGL_GAL::Rotate ( double  aAngle)
overridevirtual

Rotate the context.

Parameters
aAngleis the rotation angle in radians.

Reimplemented from KIGFX::GAL.

Definition at line 1240 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1241 {
1242  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1243 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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 1258 of file opengl_gal.cpp.

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

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

1259 {
1261 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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 1323 of file opengl_gal.cpp.

Referenced by IsVisible().

1324 {
1325  wxASSERT_MSG( false, wxT( "Not implemented yet" ) );
1326 }
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 1252 of file opengl_gal.cpp.

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

Referenced by IsVisible().

1253 {
1254  currentManager->Scale( aScale.x, aScale.y, 0.0f );
1255 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:304
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(), PCB_DRAW_PANEL_GAL::UseColorScheme(), 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 PCBNEW_CONTROL::DoSetGridOrigin(), PCB_BASE_EDIT_FRAME::SetBoard(), 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().