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 IsOpenGlEngine () override
 Returns true if the GAL engine is a opengl based type. More...
 
virtual bool IsInitialized () const override
 Returns the initalization status for the canvas. More...
 
bool IsVisible () const override
 

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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 DrawPolygon (const SHAPE_LINE_CHAIN &aPolySet) override
 
virtual void DrawCurve (const VECTOR2D &startPoint, const VECTOR2D &controlPointA, const VECTOR2D &controlPointB, const VECTOR2D &endPoint, double aFilterValue=0.0) override
 Draw a cubic bezier spline. More...
 
virtual void DrawBitmap (const BITMAP_BASE &aBitmap) override
 Draw a bitmap image. 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
 

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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 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 ComputeWorldScreenMatrix () override
 Compute the world <-> screen transformation matrix. 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)
 
virtual void EnableDepthTest (bool aEnabled=false) override
 Parameters passed to the GLU tesselator. More...
 
virtual bool IsCairoEngine ()
 Returns true if the GAL engine is a cairo based type. 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...
 
const COLOR4DGetFillColor () const
 Get 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 (float aLineWidth)
 Set the line width. More...
 
float 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...
 
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 SetScreenSize (const VECTOR2I &aSize)
 
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 SetRotation (double aRotation)
 Set the rotation angle. More...
 
double GetRotation () const
 Get the rotation angle. 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...
 
bool IsFlippedX () const
 Return true if flip flag for the X axis is set. More...
 
bool IsFlippedY () const
 Return true if flip flag for the Y axis is set. 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...
 
float 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 GetNativePixelSize () const
 
virtual float GetBackingScaleFactor () const
 
void SetScaleFactor (double aFactor)
 Set the canvas scale factor, probably for a hi-DPI display. More...
 
double GetScaleFactor () const
 Get the current scale factor. More...
 

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...
 
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...
 
double rotation
 Rotation transformation (radians) 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...
 
float 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...
 
float 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

void lockContext (int aClientCookie) override
 Private: use GAL_CONTEXT_LOCKER RAII object. More...
 
void unlockContext (int aClientCookie) override
 
virtual void beginUpdate () override
 
virtual void endUpdate () override
 
virtual void beginDrawing () override
 
virtual void endDrawing () override
 
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...
 
double getWorldPixelSize () const
 
VECTOR2D getScreenPixelSize () const
 
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...
 
SHADERshader
 There is only one shader used for different objects. 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...
 
bool isContextLocked
 Used for assertion checking. More...
 
int lockClientCookie
 
GLint ufm_worldPixelSize
 
GLint ufm_screenPixelSize
 
GLint ufm_pixelSizeMultiplier
 
std::unique_ptr< GL_BITMAP_CACHEbitmapCache
 
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 bool isBitmapFontLoaded = false
 Is the bitmap font texture loaded? More...
 

Detailed Description

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

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

Definition at line 65 of file opengl_gal.h.

Member Typedef Documentation

◆ GROUPS_MAP

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

Definition at line 295 of file opengl_gal.h.

◆ super

typedef GAL KIGFX::OPENGL_GAL::super
private

Super class definition.

Definition at line 281 of file opengl_gal.h.

Constructor & Destructor Documentation

◆ OPENGL_GAL()

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 191 of file opengl_gal.cpp.

193  :
194  GAL( aDisplayOptions ),
195  HIDPI_GL_CANVAS( aParent, wxID_ANY, (int*) glAttributes, wxDefaultPosition, wxDefaultSize,
196  wxEXPAND, aName ),
197  mouseListener( aMouseListener ),
198  paintListener( aPaintListener ),
199  currentManager( nullptr ),
200  cachedManager( nullptr ),
201  nonCachedManager( nullptr ),
202  overlayManager( nullptr ),
203  mainBuffer( 0 ),
204  overlayBuffer( 0 ),
205  isContextLocked( false ),
206  lockClientCookie( 0 )
207 {
208 // IsDisplayAttr() handles WX_GL_{MAJOR,MINOR}_VERSION correctly only in 3.0.4
209 // starting with 3.1.0 one should use wxGLContext::IsOk() (done by GL_CONTEXT_MANAGER)
210 #if wxCHECK_VERSION( 3, 0, 3 ) and !wxCHECK_VERSION( 3, 1, 0 )
211  const int attr[] = { WX_GL_MAJOR_VERSION, 2, WX_GL_MINOR_VERSION, 1, 0 };
212 
213  if( !IsDisplaySupported( attr ) )
214  throw std::runtime_error( "OpenGL 2.1 or higher is required!" );
215 #endif /* wxCHECK_VERSION( 3, 0, 3 ) */
216 
217  if( glMainContext == NULL )
218  {
220 
221  if( !glMainContext )
222  throw std::runtime_error( "Could not create the main OpenGL context" );
223 
225  }
226  else
227  {
229 
230  if( !glPrivContext )
231  throw std::runtime_error( "Could not create a private OpenGL context" );
232  }
233 
234  shader = new SHADER();
235  ++instanceCounter;
236 
237  bitmapCache = std::make_unique<GL_BITMAP_CACHE>( );
238 
241 
242  // Initialize the flags
243  isFramebufferInitialized = false;
244  isBitmapFontInitialized = false;
245  isInitialized = false;
246  isGrouping = false;
247  groupCounter = 0;
248 
249  // Connecting the event handlers
250  Connect( wxEVT_PAINT, wxPaintEventHandler( OPENGL_GAL::onPaint ) );
251 
252  // Mouse events are skipped to the parent
253  Connect( wxEVT_MOTION, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
254  Connect( wxEVT_LEFT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
255  Connect( wxEVT_LEFT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
256  Connect( wxEVT_LEFT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
257  Connect( wxEVT_MIDDLE_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
258  Connect( wxEVT_MIDDLE_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
259  Connect( wxEVT_MIDDLE_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
260  Connect( wxEVT_RIGHT_DOWN, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
261  Connect( wxEVT_RIGHT_UP, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
262  Connect( wxEVT_RIGHT_DCLICK, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
263  Connect( wxEVT_MOUSEWHEEL, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
264 #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
265  Connect( wxEVT_MAGNIFY, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
266 #endif
267 #if defined _WIN32 || defined _WIN64
268  Connect( wxEVT_ENTER_WINDOW, wxMouseEventHandler( OPENGL_GAL::skipMouseEvent ) );
269 #endif
270 
271  SetSize( aParent->GetClientSize() );
273 
274  // Grid color settings are different in Cairo and OpenGL
275  SetGridColor( COLOR4D( 0.8, 0.8, 0.8, 0.1 ) );
276  SetAxesColor( COLOR4D( BLUE ) );
277 
278  // Tesselator initialization
279  tesselator = gluNewTess();
281 
282  if( tesselator == NULL )
283  throw std::runtime_error( "Could not create the tesselator" );
284 
285  gluTessProperty( tesselator, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_POSITIVE );
286 
288 
289  // Avoid unitialized variables:
290  ufm_worldPixelSize = 1;
293 }
Definition: colors.h:57
virtual wxSize GetNativePixelSize() const
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:286
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:306
bool isBitmapFontInitialized
Is the shader set to use bitmap fonts?
Definition: opengl_gal.h:315
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
GAL_DISPLAY_OPTIONS & options
std::unique_ptr< GL_BITMAP_CACHE > bitmapCache
Definition: opengl_gal.h:325
static void InitTesselatorCallbacks(GLUtesselator *aTesselator)
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:310
VECTOR2< int > VECTOR2I
Definition: vector2d.h:594
bool isGrouping
Was a group started?
Definition: opengl_gal.h:318
OPENGL_ANTIALIASING_MODE gl_antialiasing_mode
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
Auxiliary rendering target (noncached)
Definition: definitions.h:49
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:288
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:304
#define NULL
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:305
wxEvtHandler * mouseListener
Definition: opengl_gal.h:289
void SetAxesColor(const COLOR4D &aAxesColor)
Set the axes color.
static const int glAttributes[]
Definition: opengl_gal.cpp:74
void onPaint(wxPaintEvent &aEvent)
This is the OnPaint event handler.
GLint ufm_screenPixelSize
Definition: opengl_gal.h:322
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:313
Class SHADER provides the access to the OpenGL shaders.
Definition: shader.h:76
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:348
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
GLint ufm_worldPixelSize
Definition: opengl_gal.h:321
wxEvtHandler * paintListener
Definition: opengl_gal.h:290
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:316
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:297
VECTOR2I screenSize
Screen size in screen coordinates.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:287
wxGLContext * CreateCtx(wxGLCanvas *aCanvas, const wxGLContext *aOther=NULL)
Function CreateCtx creates a managed OpenGL context.
GLint ufm_pixelSizeMultiplier
Definition: opengl_gal.h:323
void skipMouseEvent(wxMouseEvent &aEvent)
Skip the mouse event to the parent.
COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:40

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

◆ ~OPENGL_GAL()

OPENGL_GAL::~OPENGL_GAL ( )
virtual

Definition at line 296 of file opengl_gal.cpp.

297 {
299 
300  --instanceCounter;
301  glFlush();
302  gluDeleteTess( tesselator );
303  ClearCache();
304 
305  delete compositor;
306 
307  if( isInitialized )
308  {
309  delete cachedManager;
310  delete nonCachedManager;
311  delete overlayManager;
312  }
313 
315 
316  // If it was the main context, then it will be deleted
317  // when the last OpenGL GAL instance is destroyed (a few lines below)
320 
321  delete shader;
322 
323  // Are we destroying the last GAL instance?
324  if( instanceCounter == 0 )
325  {
327 
328  if( isBitmapFontLoaded )
329  {
330  glDeleteTextures( 1, &fontTexture );
331  isBitmapFontLoaded = false;
332  }
333 
337  }
338 }
static wxGLContext * glMainContext
Parent OpenGL context.
Definition: opengl_gal.h:286
static GLuint fontTexture
Bitmap font texture handle (shared)
Definition: opengl_gal.h:292
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:310
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:300
static int instanceCounter
GL GAL instance counter.
Definition: opengl_gal.h:288
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:304
#define NULL
virtual void ClearCache() override
Delete all data created during caching of graphic items.
GLUtesselator * tesselator
The tessellator.
Definition: opengl_gal.h:348
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:299
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:316
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:287
void DestroyCtx(wxGLContext *aContext)
Function DestroyCtx destroys a managed OpenGL context.
static bool isBitmapFontLoaded
Is the bitmap font texture loaded?
Definition: opengl_gal.h:314

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

Member Function Documentation

◆ AdvanceDepth()

void KIGFX::GAL::AdvanceDepth ( )
inlineinherited

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

Definition at line 1016 of file graphics_abstraction_layer.h.

1017  {
1018  layerDepth -= 0.05;
1019  }
double layerDepth
The actual layer depth.

References KIGFX::GAL::layerDepth.

Referenced by KIGFX::VIEW_GROUP::ViewDraw().

◆ beginDrawing()

void OPENGL_GAL::beginDrawing ( )
overrideprivatevirtual

Reimplemented from KIGFX::GAL.

Definition at line 382 of file opengl_gal.cpp.

383 {
384 #ifdef __WXDEBUG__
385  PROF_COUNTER totalRealTime( "OPENGL_GAL::beginDrawing()", true );
386 #endif /* __WXDEBUG__ */
387 
388  wxASSERT_MSG( isContextLocked, "GAL_DRAWING_CONTEXT RAII object should have locked context. "
389  "Calling GAL::beginDrawing() directly is not allowed." );
390 
391  wxASSERT_MSG( IsVisible(), "GAL::beginDrawing() must not be entered when GAL is not visible. "
392  "Other drawing routines will expect everything to be initialized "
393  "which will not be the case." );
394 
395  if( !isInitialized )
396  init();
397 
398  // Set up the view port
399  glMatrixMode( GL_PROJECTION );
400  glLoadIdentity();
401 
402  // Create the screen transformation (Do the RH-LH conversion here)
403  glOrtho( 0, (GLint) screenSize.x, (GLsizei) screenSize.y, 0, -depthRange.x, -depthRange.y );
404 
406  {
407  // Prepare rendering target buffers
411 
413  }
414 
415  compositor->Begin();
416 
417  // Disable 2D Textures
418  glDisable( GL_TEXTURE_2D );
419 
420  glShadeModel( GL_FLAT );
421 
422  // Enable the depth buffer
423  glEnable( GL_DEPTH_TEST );
424  glDepthFunc( GL_LESS );
425 
426  // Setup blending, required for transparent objects
427  glEnable( GL_BLEND );
428  glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
429 
430  glMatrixMode( GL_MODELVIEW );
431 
432  // Set up the world <-> screen transformation
434  GLdouble matrixData[16] = { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 };
435  matrixData[0] = worldScreenMatrix.m_data[0][0];
436  matrixData[1] = worldScreenMatrix.m_data[1][0];
437  matrixData[2] = worldScreenMatrix.m_data[2][0];
438  matrixData[4] = worldScreenMatrix.m_data[0][1];
439  matrixData[5] = worldScreenMatrix.m_data[1][1];
440  matrixData[6] = worldScreenMatrix.m_data[2][1];
441  matrixData[12] = worldScreenMatrix.m_data[0][2];
442  matrixData[13] = worldScreenMatrix.m_data[1][2];
443  matrixData[14] = worldScreenMatrix.m_data[2][2];
444  glLoadMatrixd( matrixData );
445 
446  // Set defaults
449 
450  // Remove all previously stored items
453 
457 
459  {
460  // Keep bitmap font texture always bound to the second texturing unit
461  const GLint FONT_TEXTURE_UNIT = 2;
462 
463  // Either load the font atlas to video memory, or simply bind it to a texture unit
464  if( !isBitmapFontLoaded )
465  {
466  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
467  glGenTextures( 1, &fontTexture );
468  glBindTexture( GL_TEXTURE_2D, fontTexture );
469  glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB8, font_image.width, font_image.height,
470  0, GL_RGB, GL_UNSIGNED_BYTE, font_image.pixels );
471  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
472  glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
473  checkGlError( "loading bitmap font" );
474 
475  glActiveTexture( GL_TEXTURE0 );
476 
477  isBitmapFontLoaded = true;
478  }
479  else
480  {
481  glActiveTexture( GL_TEXTURE0 + FONT_TEXTURE_UNIT );
482  glBindTexture( GL_TEXTURE_2D, fontTexture );
483  glActiveTexture( GL_TEXTURE0 );
484  }
485 
486  // Set shader parameter
487  GLint ufm_fontTexture = shader->AddParameter( "fontTexture" );
488  GLint ufm_fontTextureWidth = shader->AddParameter( "fontTextureWidth" );
489  ufm_worldPixelSize = shader->AddParameter( "worldPixelSize" );
490  ufm_screenPixelSize = shader->AddParameter( "screenPixelSize" );
491  ufm_pixelSizeMultiplier = shader->AddParameter( "pixelSizeMultiplier" );
492 
493  shader->Use();
494  shader->SetParameter( ufm_fontTexture, (int) FONT_TEXTURE_UNIT );
495  shader->SetParameter( ufm_fontTextureWidth, (int) font_image.width );
496  shader->Deactivate();
497  checkGlError( "setting bitmap font sampler as shader parameter" );
498 
500  }
501 
502  shader->Use();
505  double pixelSizeMultiplier = compositor->GetAntialiasSupersamplingFactor();
506  shader->SetParameter( ufm_pixelSizeMultiplier, (float) pixelSizeMultiplier );
507  shader->Deactivate();
508 
509  // Something betreen BeginDrawing and EndDrawing seems to depend on
510  // this texture unit being active, but it does not assure it itself.
511  glActiveTexture( GL_TEXTURE0 );
512 
513  // Unbind buffers - set compositor for direct drawing
515 
516 #ifdef __WXDEBUG__
517  totalRealTime.Stop();
518  wxLogTrace( "GAL_PROFILE", wxT( "OPENGL_GAL::beginDrawing(): %.1f ms" ), totalRealTime.msecs() );
519 #endif /* __WXDEBUG__ */
520 }
virtual void SetFillColor(const COLOR4D &aColor)
Set the fill color.
int GetAntialiasSupersamplingFactor() const
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:306
virtual void Begin() override
Function Begin() Call this at the beginning of each frame.
void BeginDrawing() const
Function BeginDrawing() prepares buffers and items to start drawing.
bool isBitmapFontInitialized
Is the shader set to use bitmap fonts?
Definition: opengl_gal.h:315
void Use()
Use the shader.
Definition: shader.h:132
static GLuint fontTexture
Bitmap font texture handle (shared)
Definition: opengl_gal.h:292
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
VECTOR2D getScreenPixelSize() const
Definition: opengl_gal.cpp:375
virtual void ComputeWorldScreenMatrix() override
Compute the world <-> screen transformation matrix.
void SetParameter(int aParameterNumber, float aValue) const
Set a parameter of the shader.
Definition: shader.cpp:139
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
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
SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:310
static const unsigned int DIRECT_RENDERING
The class PROF_COUNTER is a small class to help profiling.
Definition: profile.h:44
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
T m_data[3][3]
Definition: matrix3x3.h:64
double getWorldPixelSize() const
Definition: opengl_gal.cpp:368
void init()
Basic OpenGL initialization.
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:305
COLOR4D strokeColor
The color of the outlines.
int AddParameter(const std::string &aParameterName)
Add a parameter to the parameter queue.
Definition: shader.cpp:126
GLint ufm_screenPixelSize
Definition: opengl_gal.h:322
void Deactivate()
Deactivate the shader and use the default OpenGL program.
Definition: shader.h:141
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:313
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.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
virtual void Initialize() override
Function Reset() performs primary initialiation, necessary to use the object.
GLint ufm_worldPixelSize
Definition: opengl_gal.h:321
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:316
virtual float GetBackingScaleFactor() const
VECTOR2I screenSize
Screen size in screen coordinates.
virtual unsigned int CreateBuffer() override
Function CreateBuffer() prepares a new buffer that may be used as a rendering target.
bool IsVisible() const override
Definition: opengl_gal.h:99
GLint ufm_pixelSizeMultiplier
Definition: opengl_gal.h:323
void Clear() const
Function Clear() removes all the stored vertices from the container.
static bool isBitmapFontLoaded
Is the bitmap font texture loaded?
Definition: opengl_gal.h:314

References KIGFX::SHADER::AddParameter(), KIGFX::OPENGL_COMPOSITOR::Begin(), KIGFX::VERTEX_MANAGER::BeginDrawing(), cachedManager, checkGlError(), KIGFX::VERTEX_MANAGER::Clear(), compositor, 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, KIGFX::OPENGL_COMPOSITOR::GetAntialiasSupersamplingFactor(), HIDPI_GL_CANVAS::GetBackingScaleFactor(), getScreenPixelSize(), getWorldPixelSize(), KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::height, init(), KIGFX::OPENGL_COMPOSITOR::Initialize(), isBitmapFontInitialized, isBitmapFontLoaded, isContextLocked, isFramebufferInitialized, isInitialized, IsVisible(), 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, ufm_pixelSizeMultiplier, ufm_screenPixelSize, ufm_worldPixelSize, KIGFX::SHADER::Use(), KIGFX::BUILTIN_FONT::FONT_IMAGE_TYPE::width, KIGFX::GAL::worldScreenMatrix, VECTOR2< T >::x, and VECTOR2< T >::y.

◆ BeginGroup()

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 1485 of file opengl_gal.cpp.

1486 {
1487  isGrouping = true;
1488 
1489  std::shared_ptr<VERTEX_ITEM> newItem = std::make_shared<VERTEX_ITEM>( *cachedManager );
1490  int groupNumber = getNewGroupNumber();
1491  groups.insert( std::make_pair( groupNumber, newItem ) );
1492 
1493  return groupNumber;
1494 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:318
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
unsigned int getNewGroupNumber()
Returns a valid key that can be used as a new group number.

References cachedManager, getNewGroupNumber(), groups, and isGrouping.

◆ beginUpdate()

void OPENGL_GAL::beginUpdate ( )
overrideprivatevirtual

Reimplemented from KIGFX::GAL.

Definition at line 582 of file opengl_gal.cpp.

583 {
584  wxASSERT_MSG( isContextLocked, "GAL_UPDATE_CONTEXT RAII object should have locked context. "
585  "Calling this from anywhere else is not allowed." );
586 
587  wxASSERT_MSG( IsVisible(), "GAL::beginUpdate() must not be entered when GAL is not visible. "
588  "Other update routines will expect everything to be initialized "
589  "which will not be the case." );
590 
591  if( !isInitialized )
592  init();
593 
594  cachedManager->Map();
595 }
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
void init()
Basic OpenGL initialization.
void Map()
Function Map() maps vertex buffer.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:316
bool IsVisible() const override
Definition: opengl_gal.h:99

References cachedManager, init(), isContextLocked, isInitialized, IsVisible(), and KIGFX::VERTEX_MANAGER::Map().

◆ BitmapText()

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 1123 of file opengl_gal.cpp.

1125 {
1126  wxASSERT_MSG( !IsTextMirrored(), "No support for mirrored text using bitmap fonts." );
1127 
1128  const UTF8 text( aText );
1129  // Compute text size, so it can be properly justified
1130  VECTOR2D textSize;
1131  float commonOffset;
1132  std::tie( textSize, commonOffset ) = computeBitmapTextSize( text );
1133 
1134  const double SCALE = 1.4 * GetGlyphSize().y / textSize.y;
1135  bool overbar = false;
1136 
1137  int overbarLength = 0;
1138  double overbarHeight = textSize.y;
1139 
1140  Save();
1141 
1143  currentManager->Translate( aPosition.x, aPosition.y, layerDepth );
1144  currentManager->Rotate( aRotationAngle, 0.0f, 0.0f, -1.0f );
1145 
1146  double sx = SCALE * ( globalFlipX ? -1.0 : 1.0 );
1147  double sy = SCALE * ( globalFlipY ? -1.0 : 1.0 );
1148 
1149  currentManager->Scale( sx, sy, 0 );
1150  currentManager->Translate( 0, -commonOffset, 0 );
1151 
1152  switch( GetHorizontalJustify() )
1153  {
1155  Translate( VECTOR2D( -textSize.x / 2.0, 0 ) );
1156  break;
1157 
1159  //if( !IsTextMirrored() )
1160  Translate( VECTOR2D( -textSize.x, 0 ) );
1161  break;
1162 
1163  case GR_TEXT_HJUSTIFY_LEFT:
1164  //if( IsTextMirrored() )
1165  //Translate( VECTOR2D( -textSize.x, 0 ) );
1166  break;
1167  }
1168 
1169  switch( GetVerticalJustify() )
1170  {
1171  case GR_TEXT_VJUSTIFY_TOP:
1172  Translate( VECTOR2D( 0, -textSize.y ) );
1173  overbarHeight = -textSize.y / 2.0;
1174  break;
1175 
1177  Translate( VECTOR2D( 0, -textSize.y / 2.0 ) );
1178  overbarHeight = 0;
1179  break;
1180 
1182  break;
1183  }
1184 
1185  int i = 0;
1186 
1187  for( UTF8::uni_iter chIt = text.ubegin(), end = text.uend(); chIt < end; ++chIt )
1188  {
1189  unsigned int c = *chIt;
1190  wxASSERT_MSG( c != '\n' && c != '\r', wxT( "No support for multiline bitmap text yet" ) );
1191 
1192  bool wasOverbar = overbar;
1193 
1194  if( c == '~' )
1195  {
1196  if( ++chIt == end )
1197  break;
1198 
1199  c = *chIt;
1200 
1201  if( c == '~' )
1202  {
1203  // double ~ is really a ~ so go ahead and process the second one
1204 
1205  // so what's a triple ~? It could be a real ~ followed by an overbar, or
1206  // it could be an overbar followed by a real ~. The old algorithm did the
1207  // former so we will too....
1208  }
1209  else
1210  {
1211  overbar = !overbar;
1212  }
1213  }
1214 
1215  if( wasOverbar && !overbar )
1216  {
1217  drawBitmapOverbar( overbarLength, overbarHeight );
1218  overbarLength = 0;
1219  }
1220 
1221  if( overbar )
1222  overbarLength += drawBitmapChar( c );
1223  else
1224  drawBitmapChar( c );
1225 
1226  ++i;
1227  }
1228 
1229  // Handle the case when overbar is active till the end of the drawn text
1230  currentManager->Translate( 0, commonOffset, 0 );
1231 
1232  if( overbar && overbarLength > 0 )
1233  drawBitmapOverbar( overbarLength, overbarHeight );
1234 
1235  Restore();
1236 }
UTF8 is an 8 bit string that is assuredly encoded in UTF8, and supplies special conversion support to...
Definition: utf8.h:73
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
double layerDepth
The actual layer depth.
bool IsTextMirrored() const
Returns true if text should displayed mirrored.
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:303
bool globalFlipX
Flag for X axis flipping.
EDA_TEXT_HJUSTIFY_T GetHorizontalJustify() const
Returns current text horizontal justification setting.
double b
Blue component.
Definition: color4d.h:304
const VECTOR2D & GetGlyphSize() const
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:305
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
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.
uni_iter is a non-mutating iterator that walks through unicode code points in the UTF8 encoded string...
Definition: utf8.h:207
bool globalFlipY
Flag for Y axis flipping.
EDA_TEXT_VJUSTIFY_T GetVerticalJustify() const
Returns current text vertical justification setting.
int drawBitmapChar(unsigned long aChar)
Draws a single character using bitmap font.
void Scale(GLfloat aX, GLfloat aY, GLfloat aZ)
Function Scale() multiplies the current matrix by a scaling matrix, so the newly vertices will be sca...
double r
Red component.
Definition: color4d.h:302
std::pair< VECTOR2D, float > computeBitmapTextSize(const UTF8 &aText) const
Computes a size of text drawn using bitmap font with current text setting applied.
void drawBitmapOverbar(double aLength, double aHeight)
Draws an overbar over the currently drawn text.

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), computeBitmapTextSize(), currentManager, drawBitmapChar(), drawBitmapOverbar(), KIGFX::COLOR4D::g, KIGFX::GAL::GetGlyphSize(), KIGFX::GAL::GetHorizontalJustify(), KIGFX::GAL::GetVerticalJustify(), KIGFX::GAL::globalFlipX, KIGFX::GAL::globalFlipY, GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_HJUSTIFY_LEFT, GR_TEXT_HJUSTIFY_RIGHT, GR_TEXT_VJUSTIFY_BOTTOM, GR_TEXT_VJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_TOP, KIGFX::GAL::IsTextMirrored(), KIGFX::GAL::layerDepth, KIGFX::COLOR4D::r, Restore(), KIGFX::VERTEX_MANAGER::Rotate(), Save(), KIGFX::VERTEX_MANAGER::Scale(), KIGFX::GAL::strokeColor, Translate(), KIGFX::VERTEX_MANAGER::Translate(), UTF8::ubegin(), UTF8::uend(), VECTOR2< T >::x, and VECTOR2< T >::y.

◆ blitCursor()

void OPENGL_GAL::blitCursor ( )
private

Blits cursor into the current screen.

Definition at line 1946 of file opengl_gal.cpp.

1947 {
1948  if( !IsCursorEnabled() )
1949  return;
1950 
1952 
1953  const int cursorSize = fullscreenCursor ? 8000 : 80;
1954 
1955  VECTOR2D cursorBegin = cursorPosition - cursorSize / ( 2 * worldScale );
1956  VECTOR2D cursorEnd = cursorPosition + cursorSize / ( 2 * worldScale );
1957  VECTOR2D cursorCenter = ( cursorBegin + cursorEnd ) / 2;
1958 
1959  const COLOR4D cColor = getCursorColor();
1960  const COLOR4D color( cColor.r * cColor.a, cColor.g * cColor.a,
1961  cColor.b * cColor.a, 1.0 );
1962 
1963  glActiveTexture( GL_TEXTURE0 );
1964  glDisable( GL_TEXTURE_2D );
1965  glLineWidth( 1.0 );
1966  glColor4d( color.r, color.g, color.b, color.a );
1967 
1968  glBegin( GL_LINES );
1969  glVertex2d( cursorCenter.x, cursorBegin.y );
1970  glVertex2d( cursorCenter.x, cursorEnd.y );
1971 
1972  glVertex2d( cursorBegin.x, cursorCenter.y );
1973  glVertex2d( cursorEnd.x, cursorCenter.y );
1974  glEnd();
1975 }
VECTOR2D cursorPosition
Current cursor position (world coordinates)
int color
Definition: DXF_plotter.cpp:61
double g
Green component.
Definition: color4d.h:303
static const unsigned int DIRECT_RENDERING
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
bool fullscreenCursor
Shape of the cursor (fullscreen or small cross)
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
COLOR4D getCursorColor() const
Gets the actual cursor color to draw.
double worldScale
The scale factor world->screen.
double r
Red component.
Definition: color4d.h:302
bool IsCursorEnabled() const
Returns information about cursor visibility.
COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:40

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().

◆ calcAngleStep()

double KIGFX::OPENGL_GAL::calcAngleStep ( double  aRadius) const
inlineprivate

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

Definition at line 471 of file opengl_gal.h.

472  {
473  // Bigger arcs need smaller alpha increment to make them look smooth
474  return std::min( 1e6 / aRadius, 2.0 * M_PI / CIRCLE_POINTS );
475  }
CIRCLE_POINTS

Referenced by DrawArc(), and DrawArcSegment().

◆ ChangeGroupColor()

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 1511 of file opengl_gal.cpp.

1512 {
1513  if( groups[aGroupNumber] )
1514  cachedManager->ChangeItemColor( *groups[aGroupNumber], aNewColor );
1515 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
void ChangeItemColor(const VERTEX_ITEM &aItem, const COLOR4D &aColor) const
Function ChangeItemColor() changes the color of all vertices owned by an item.

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

◆ ChangeGroupDepth()

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 1518 of file opengl_gal.cpp.

1519 {
1520  if( groups[aGroupNumber] )
1521  cachedManager->ChangeItemDepth( *groups[aGroupNumber], aDepth );
1522 }
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:296
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299

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

◆ ClearCache()

void OPENGL_GAL::ClearCache ( )
overridevirtual

Delete all data created during caching of graphic items.

Reimplemented from KIGFX::GAL.

Definition at line 1532 of file opengl_gal.cpp.

1533 {
1534  bitmapCache = std::make_unique<GL_BITMAP_CACHE>( );
1535 
1536  groups.clear();
1537 
1538  if( isInitialized )
1539  cachedManager->Clear();
1540 }
std::unique_ptr< GL_BITMAP_CACHE > bitmapCache
Definition: opengl_gal.h:325
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:316
void Clear() const
Function Clear() removes all the stored vertices from the container.

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

Referenced by ~OPENGL_GAL().

◆ ClearScreen()

void OPENGL_GAL::ClearScreen ( )
overridevirtual

Clear the screen.

Parameters
aColoris the color used for clearing.

Reimplemented from KIGFX::GAL.

Definition at line 1427 of file opengl_gal.cpp.

1428 {
1429  // Clear screen
1431  // NOTE: Black used here instead of m_clearColor; it will be composited later
1432  glClearColor( 0, 0, 0, 1 );
1433  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
1434 }
static const unsigned int DIRECT_RENDERING
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.

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

◆ ClearTarget()

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 1571 of file opengl_gal.cpp.

1572 {
1573  // Save the current state
1574  unsigned int oldTarget = compositor->GetBuffer();
1575 
1576  switch( aTarget )
1577  {
1578  // Cached and noncached items are rendered to the same buffer
1579  default:
1580  case TARGET_CACHED:
1581  case TARGET_NONCACHED:
1583  break;
1584 
1585  case TARGET_OVERLAY:
1587  break;
1588  }
1589 
1590 
1591  if( aTarget != TARGET_OVERLAY )
1593  else
1595 
1596  // Restore the previous state
1597  compositor->SetBuffer( oldTarget );
1598 }
unsigned int overlayBuffer
Auxiliary rendering target (for menus etc.)
Definition: opengl_gal.h:306
Auxiliary rendering target (noncached)
Definition: definitions.h:49
static const COLOR4D BLACK
Definition: color4d.h:312
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:305
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:50
virtual void SetBuffer(unsigned int aBufferHandle) override
Function SetBuffer() sets the selected buffer as the rendering target.
Main rendering target (cached)
Definition: definitions.h:48
virtual unsigned int GetBuffer() const override
Function GetBuffer() returns currently used buffer handle.

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.

◆ computeBitmapTextSize()

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 1896 of file opengl_gal.cpp.

1897 {
1898  VECTOR2D textSize( 0, 0 );
1899  float commonOffset = std::numeric_limits<float>::max();
1900  static const auto defaultGlyph = LookupGlyph( '(' ); // for strange chars
1901 
1902  for( UTF8::uni_iter chIt = aText.ubegin(), end = aText.uend(); chIt < end; ++chIt )
1903  {
1904  unsigned int c = *chIt;
1905 
1906  const FONT_GLYPH_TYPE* glyph = LookupGlyph( c );
1907  // Debug: show not coded char in the atlas
1908  // Be carefull before allowing the assert: it usually crash kicad
1909  // when the assert is made during a paint event.
1910  // wxASSERT_MSG( glyph, wxString::Format( "missing char in font: code 0x%x <%c>", c, c ) );
1911 
1912  if( !glyph || // Not coded in font
1913  c == '-' || c == '_' ) // Strange size of these 2 chars
1914  {
1915  glyph = defaultGlyph;
1916  }
1917 
1918  if( glyph )
1919  {
1920  textSize.x += glyph->advance;
1921  }
1922  }
1923 
1924  textSize.y = std::max<float>( textSize.y, font_information.max_y - defaultGlyph->miny );
1925  commonOffset = std::min<float>( font_information.max_y - defaultGlyph->maxy, commonOffset );
1926  textSize.y -= commonOffset;
1927 
1928  return std::make_pair( textSize, commonOffset );
1929 }
uni_iter uend() const
Function uend returns a uni_iter initialized to the end of "this" UTF8 byte sequence.
Definition: utf8.h:294
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
uni_iter is a non-mutating iterator that walks through unicode code points in the UTF8 encoded string...
Definition: utf8.h:207

References KIGFX::BUILTIN_FONT::FONT_GLYPH_TYPE::advance, KIGFX::BUILTIN_FONT::font_information, KIGFX::BUILTIN_FONT::LookupGlyph(), KIGFX::BUILTIN_FONT::FONT_INFO_TYPE::max_y, UTF8::ubegin(), UTF8::uend(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by BitmapText().

◆ computeMinGridSpacing()

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 210 of file graphics_abstraction_layer.cpp.

211 {
212  // just return the current value. This could be cleverer and take
213  // into account other settings in future
214  return gridMinSpacing;
215 }
int gridMinSpacing
Minimum screen size of the grid (pixels) below which the grid is not drawn.

References KIGFX::GAL::gridMinSpacing.

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

◆ computeWorldScale()

void KIGFX::GAL::computeWorldScale ( )
inlineprotectedinherited

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

Definition at line 1118 of file graphics_abstraction_layer.h.

1119  {
1121  }
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.

References KIGFX::GAL::screenDPI, KIGFX::GAL::worldScale, KIGFX::GAL::worldUnitLength, and KIGFX::GAL::zoomFactor.

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

◆ ComputeWorldScreenMatrix()

void OPENGL_GAL::ComputeWorldScreenMatrix ( )
overridevirtual

Compute the world <-> screen transformation matrix.

Reimplemented from KIGFX::GAL.

Definition at line 2119 of file opengl_gal.cpp.

2120 {
2121  auto pixelSize = worldScale;
2122 
2123  lookAtPoint.x = roundr( lookAtPoint.x, pixelSize );
2124  lookAtPoint.y = roundr( lookAtPoint.y, pixelSize );
2125 
2127 }
virtual void ComputeWorldScreenMatrix()
Compute the world <-> screen transformation matrix.
VECTOR2D lookAtPoint
Point to be looked at in world space.
double worldScale
The scale factor world->screen.
static double roundr(double f, double r)

References KIGFX::GAL::ComputeWorldScreenMatrix(), KIGFX::GAL::lookAtPoint, roundr(), KIGFX::GAL::worldScale, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by beginDrawing().

◆ DeleteGroup()

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 1525 of file opengl_gal.cpp.

1526 {
1527  // Frees memory in the container as well
1528  groups.erase( aGroupNumber );
1529 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296

References groups.

◆ DrawArc()

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 717 of file opengl_gal.cpp.

719 {
720  if( aRadius <= 0 )
721  return;
722 
723  // Swap the angles, if start angle is greater than end angle
724  SWAP( aStartAngle, >, aEndAngle );
725 
726  const double alphaIncrement = calcAngleStep( aRadius );
727 
728  Save();
729  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
730 
731  if( isFillEnabled )
732  {
733  double alpha;
736 
737  // Triangle fan
738  for( alpha = aStartAngle; ( alpha + alphaIncrement ) < aEndAngle; )
739  {
740  currentManager->Reserve( 3 );
741  currentManager->Vertex( 0.0, 0.0, layerDepth );
742  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, layerDepth );
743  alpha += alphaIncrement;
744  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, layerDepth );
745  }
746 
747  // The last missing triangle
748  const VECTOR2D endPoint( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
749 
750  currentManager->Reserve( 3 );
751  currentManager->Vertex( 0.0, 0.0, layerDepth );
752  currentManager->Vertex( cos( alpha ) * aRadius, sin( alpha ) * aRadius, layerDepth );
753  currentManager->Vertex( endPoint.x, endPoint.y, layerDepth );
754  }
755 
756  if( isStrokeEnabled )
757  {
759 
760  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
761  double alpha;
762 
763  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
764  {
765  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
766  DrawLine( p, p_next );
767 
768  p = p_next;
769  }
770 
771  // Draw the last missing part
772  if( alpha != aEndAngle )
773  {
774  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
775  DrawLine( p, p_last );
776  }
777  }
778 
779  Restore();
780 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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.
double g
Green component.
Definition: color4d.h:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:305
bool isStrokeEnabled
Are the outlines stroked ?
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:471
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:607
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:302

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::GAL::layerDepth, 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.

◆ DrawArcSegment()

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.

TODO: Unify Arc routines

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 783 of file opengl_gal.cpp.

785 {
786  if( aRadius <= 0 )
787  {
788  // Arcs of zero radius are a circle of aWidth diameter
789  if( aWidth > 0 )
790  DrawCircle( aCenterPoint, aWidth / 2.0 );
791 
792  return;
793  }
794 
795  // Swap the angles, if start angle is greater than end angle
796  SWAP( aStartAngle, >, aEndAngle );
797 
798  const double alphaIncrement = calcAngleStep( aRadius );
799 
800  Save();
801  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0 );
802 
803  if( isStrokeEnabled )
804  {
806 
807  double width = aWidth / 2.0;
808  VECTOR2D startPoint( cos( aStartAngle ) * aRadius,
809  sin( aStartAngle ) * aRadius );
810  VECTOR2D endPoint( cos( aEndAngle ) * aRadius,
811  sin( aEndAngle ) * aRadius );
812 
813  drawStrokedSemiCircle( startPoint, width, aStartAngle + M_PI );
814  drawStrokedSemiCircle( endPoint, width, aEndAngle );
815 
816  VECTOR2D pOuter( cos( aStartAngle ) * ( aRadius + width ),
817  sin( aStartAngle ) * ( aRadius + width ) );
818 
819  VECTOR2D pInner( cos( aStartAngle ) * ( aRadius - width ),
820  sin( aStartAngle ) * ( aRadius - width ) );
821 
822  double alpha;
823 
824  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
825  {
826  VECTOR2D pNextOuter( cos( alpha ) * ( aRadius + width ),
827  sin( alpha ) * ( aRadius + width ) );
828  VECTOR2D pNextInner( cos( alpha ) * ( aRadius - width ),
829  sin( alpha ) * ( aRadius - width ) );
830 
831  DrawLine( pOuter, pNextOuter );
832  DrawLine( pInner, pNextInner );
833 
834  pOuter = pNextOuter;
835  pInner = pNextInner;
836  }
837 
838  // Draw the last missing part
839  if( alpha != aEndAngle )
840  {
841  VECTOR2D pLastOuter( cos( aEndAngle ) * ( aRadius + width ),
842  sin( aEndAngle ) * ( aRadius + width ) );
843  VECTOR2D pLastInner( cos( aEndAngle ) * ( aRadius - width ),
844  sin( aEndAngle ) * ( aRadius - width ) );
845 
846  DrawLine( pOuter, pLastOuter );
847  DrawLine( pInner, pLastInner );
848  }
849  }
850 
851  if( isFillEnabled )
852  {
854  SetLineWidth( aWidth );
855 
856  VECTOR2D p( cos( aStartAngle ) * aRadius, sin( aStartAngle ) * aRadius );
857  double alpha;
858 
859  for( alpha = aStartAngle + alphaIncrement; alpha <= aEndAngle; alpha += alphaIncrement )
860  {
861  VECTOR2D p_next( cos( alpha ) * aRadius, sin( alpha ) * aRadius );
862  DrawLine( p, p_next );
863 
864  p = p_next;
865  }
866 
867  // Draw the last missing part
868  if( alpha != aEndAngle )
869  {
870  VECTOR2D p_last( cos( aEndAngle ) * aRadius, sin( aEndAngle ) * aRadius );
871  DrawLine( p, p_last );
872  }
873  }
874 
875  Restore();
876 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
virtual void Restore() override
Restore the context.
double g
Green component.
Definition: color4d.h:303
COLOR4D fillColor
The fill color.
virtual void SetLineWidth(float aLineWidth)
Set the line width.
double b
Blue component.
Definition: color4d.h:304
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:305
bool isStrokeEnabled
Are the outlines stroked ?
double calcAngleStep(double aRadius) const
Compute the angle step when drawing arcs/circles approximated with lines.
Definition: opengl_gal.h:471
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:607
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:302
virtual void DrawCircle(const VECTOR2D &aCenterPoint, double aRadius) override
Draw a circle using world coordinates.
Definition: opengl_gal.cpp:661

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.

◆ DrawBitmap()

void OPENGL_GAL::DrawBitmap ( const BITMAP_BASE aBitmap)
overridevirtual

Draw a bitmap image.

Reimplemented from KIGFX::GAL.

Definition at line 1068 of file opengl_gal.cpp.

1069 {
1070  // We have to calculate the pixel size in users units to draw the image.
1071  // worldUnitLength is a factor used for converting IU to inches
1072  double scale = 1.0 / ( aBitmap.GetPPI() * worldUnitLength );
1073  double w = (double) aBitmap.GetSizePixels().x * scale;
1074  double h = (double) aBitmap.GetSizePixels().y * scale;
1075 
1076  auto xform = currentManager->GetTransformation();
1077 
1078  glm::vec4 v0 = xform * glm::vec4( -w/2, -h/2, 0.0, 0.0 );
1079  glm::vec4 v1 = xform * glm::vec4( w/2, h/2, 0.0, 0.0 );
1080  glm::vec4 trans = xform[3];
1081 
1082  auto texture_id = bitmapCache->RequestBitmap( &aBitmap );
1083 
1084  if( !glIsTexture( texture_id ) ) // ensure the bitmap texture is still valid
1085  return;
1086 
1087  auto oldTarget = GetTarget();
1088 
1089  glPushMatrix();
1090  glTranslated( trans.x, trans.y, trans.z );
1091 
1093  glEnable(GL_TEXTURE_2D);
1094  glActiveTexture( GL_TEXTURE0 );
1095  glBindTexture( GL_TEXTURE_2D, texture_id );
1096 
1097  glBegin( GL_QUADS );
1098  glColor4f( 1.0, 1.0, 1.0, 1.0 );
1099  glTexCoord2f( 0.0, 0.0 );
1100  glVertex3f( v0.x, v0.y, layerDepth );
1101  glColor4f( 1.0, 1.0, 1.0, 1.0 );
1102  glTexCoord2f( 1.0, 0.0 );
1103  glVertex3f( v1.x, v0.y, layerDepth );
1104  glColor4f( 1.0, 1.0, 1.0, 1.0 );
1105  glTexCoord2f( 1.0, 1.0 );
1106  glVertex3f( v1.x, v1.y, layerDepth );
1107  glColor4f( 1.0, 1.0, 1.0, 1.0 );
1108  glTexCoord2f( 0.0, 1.0 );
1109  glVertex3f( v0.x, v1.y, layerDepth );
1110  glEnd();
1111 
1112  SetTarget( oldTarget );
1113  glBindTexture( GL_TEXTURE_2D, 0 );
1114 
1115 #ifdef DISABLE_BITMAP_CACHE
1116  glDeleteTextures( 1, &texture_id );
1117 #endif
1118 
1119  glPopMatrix();
1120 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
const glm::mat4 & GetTransformation() const
double layerDepth
The actual layer depth.
std::unique_ptr< GL_BITMAP_CACHE > bitmapCache
Definition: opengl_gal.h:325
Auxiliary rendering target (noncached)
Definition: definitions.h:49
virtual RENDER_TARGET GetTarget() const override
Gets the currently used target for rendering.
double worldUnitLength
The unit length of the world coordinates [inch].
virtual void SetTarget(RENDER_TARGET aTarget) override
Sets the target for rendering.
const int scale
wxSize GetSizePixels() const
Function GetSizePixels.
Definition: bitmap_base.h:141
int GetPPI() const
Definition: bitmap_base.h:153

References bitmapCache, currentManager, BITMAP_BASE::GetPPI(), BITMAP_BASE::GetSizePixels(), GetTarget(), KIGFX::VERTEX_MANAGER::GetTransformation(), KIGFX::GAL::layerDepth, scale, SetTarget(), KIGFX::TARGET_NONCACHED, and KIGFX::GAL::worldUnitLength.

◆ drawBitmapChar()

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 1791 of file opengl_gal.cpp.

1792 {
1793  const float TEX_X = font_image.width;
1794  const float TEX_Y = font_image.height;
1795 
1796  // handle space
1797  if( aChar == ' ' )
1798  {
1799  const FONT_GLYPH_TYPE* g = LookupGlyph( 'x' );
1800  wxASSERT( g );
1801 
1802  if( !g ) // Should not happen.
1803  return 0;
1804 
1805  Translate( VECTOR2D( g->advance, 0 ) );
1806  return g->advance;
1807  }
1808 
1809  const FONT_GLYPH_TYPE* glyph = LookupGlyph( aChar );
1810 
1811  // If the glyph is not found (happens for many esotheric unicode chars)
1812  // shows a '?' instead.
1813  if( !glyph )
1814  glyph = LookupGlyph( '?' );
1815 
1816  if( !glyph ) // Should not happen.
1817  return 0;
1818 
1819  const float X = glyph->atlas_x + font_information.smooth_pixels;
1820  const float Y = glyph->atlas_y + font_information.smooth_pixels;
1821  const float XOFF = glyph->minx;
1822 
1823  // adjust for height rounding
1824  const float round_adjust = ( glyph->maxy - glyph->miny )
1825  - float( glyph->atlas_h - font_information.smooth_pixels * 2 );
1826  const float top_adjust = font_information.max_y - glyph->maxy;
1827  const float YOFF = round_adjust + top_adjust;
1828  const float W = glyph->atlas_w - font_information.smooth_pixels *2;
1829  const float H = glyph->atlas_h - font_information.smooth_pixels *2;
1830  const float B = 0;
1831 
1832  currentManager->Reserve( 6 );
1833  Translate( VECTOR2D( XOFF, YOFF ) );
1834  /* Glyph:
1835  * v0 v1
1836  * +--+
1837  * | /|
1838  * |/ |
1839  * +--+
1840  * v2 v3
1841  */
1842  currentManager->Shader( SHADER_FONT, X / TEX_X, ( Y + H ) / TEX_Y );
1843  currentManager->Vertex( -B, -B, 0 ); // v0
1844 
1845  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1846  currentManager->Vertex( W + B, -B, 0 ); // v1
1847 
1848  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1849  currentManager->Vertex( -B, H + B, 0 ); // v2
1850 
1851 
1852  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, ( Y + H ) / TEX_Y );
1853  currentManager->Vertex( W + B, -B, 0 ); // v1
1854 
1855  currentManager->Shader( SHADER_FONT, X / TEX_X, Y / TEX_Y );
1856  currentManager->Vertex( -B, H + B, 0 ); // v2
1857 
1858  currentManager->Shader( SHADER_FONT, ( X + W ) / TEX_X, Y / TEX_Y );
1859  currentManager->Vertex( W + B, H + B, 0 ); // v3
1860 
1861  Translate( VECTOR2D( -XOFF + glyph->advance, -YOFF ) );
1862 
1863  return glyph->advance;
1864 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:593
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...

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().

◆ drawBitmapOverbar()

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 1867 of file opengl_gal.cpp.

1868 {
1869  // To draw an overbar, simply draw an overbar
1870  const FONT_GLYPH_TYPE* glyph = LookupGlyph( '_' );
1871  wxCHECK( glyph, /* void */ );
1872 
1873  const float H = glyph->maxy - glyph->miny;
1874 
1875  Save();
1876 
1877  Translate( VECTOR2D( -aLength, -aHeight-1.5*H ) );
1878 
1879  currentManager->Reserve( 6 );
1881 
1882  currentManager->Shader( 0 );
1883 
1884  currentManager->Vertex( 0, 0, 0 ); // v0
1885  currentManager->Vertex( aLength, 0, 0 ); // v1
1886  currentManager->Vertex( 0, H, 0 ); // v2
1887 
1888  currentManager->Vertex( aLength, 0, 0 ); // v1
1889  currentManager->Vertex( 0, H, 0 ); // v2
1890  currentManager->Vertex( aLength, H, 0 ); // v3
1891 
1892  Restore();
1893 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:303
const FONT_GLYPH_TYPE * LookupGlyph(unsigned int aCodepoint)
double b
Blue component.
Definition: color4d.h:304
virtual void Save() override
Save the context.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
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:302

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().

◆ DrawCircle()

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 661 of file opengl_gal.cpp.

662 {
663  if( isFillEnabled )
664  {
665  currentManager->Reserve( 3 );
667 
668  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
669  * Parameters given to Shader() are indices of the triangle's vertices
670  * (if you want to understand more, check the vertex shader source [shader.vert]).
671  * Shader uses this coordinates to determine if fragments are inside the circle or not.
672  * Does the calculations in the vertex shader now (pixel alignment)
673  * v2
674  * /\
675  * //\\
676  * v0 /_\/_\ v1
677  */
678  currentManager->Shader( SHADER_FILLED_CIRCLE, 1.0, aRadius );
679  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y, layerDepth );
680 
681  currentManager->Shader( SHADER_FILLED_CIRCLE, 2.0, aRadius );
682  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y, layerDepth );
683 
684  currentManager->Shader( SHADER_FILLED_CIRCLE, 3.0, aRadius );
685  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y, layerDepth );
686  }
687  if( isStrokeEnabled )
688  {
689  currentManager->Reserve( 3 );
691 
692  /* Draw a triangle that contains the circle, then shade it leaving only the circle.
693  * Parameters given to Shader() are indices of the triangle's vertices
694  * (if you want to understand more, check the vertex shader source [shader.vert]).
695  * and the line width. Shader uses this coordinates to determine if fragments are
696  * inside the circle or not.
697  * v2
698  * /\
699  * //\\
700  * v0 /_\/_\ v1
701  */
703  currentManager->Vertex( aCenterPoint.x, // v0
704  aCenterPoint.y, layerDepth );
705 
707  currentManager->Vertex( aCenterPoint.x, // v1
708  aCenterPoint.y, layerDepth );
709 
711  currentManager->Vertex( aCenterPoint.x, aCenterPoint.y, // v2
712  layerDepth );
713  }
714 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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.
float lineWidth
The line width.
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:302

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 DrawSegment().

◆ DrawCursor()

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 1601 of file opengl_gal.cpp.

1602 {
1603  // Now we should only store the position of the mouse cursor
1604  // The real drawing routines are in blitCursor()
1605  //VECTOR2D screenCursor = worldScreenMatrix * aCursorPosition;
1606  //cursorPosition = screenWorldMatrix * VECTOR2D( screenCursor.x, screenCursor.y );
1607  cursorPosition = aCursorPosition;
1608 }
VECTOR2D cursorPosition
Current cursor position (world coordinates)

References KIGFX::GAL::cursorPosition.

◆ DrawCurve()

void OPENGL_GAL::DrawCurve ( const VECTOR2D startPoint,
const VECTOR2D controlPointA,
const VECTOR2D controlPointB,
const VECTOR2D endPoint,
double  aFilterValue = 0.0 
)
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.
aFilterValueis used by Bezier to segments approximation, if the Bezier curve is not supported and needs a curve to polyline conversion. aFilterValue = 0 means no filtering.

Reimplemented from KIGFX::GAL.

Definition at line 1049 of file opengl_gal.cpp.

1052 {
1053  std::vector<VECTOR2D> output;
1054  std::vector<VECTOR2D> pointCtrl;
1055 
1056  pointCtrl.push_back( aStartPoint );
1057  pointCtrl.push_back( aControlPointA );
1058  pointCtrl.push_back( aControlPointB );
1059  pointCtrl.push_back( aEndPoint );
1060 
1061  BEZIER_POLY converter( pointCtrl );
1062  converter.GetPoly( output, aFilterValue );
1063 
1064  DrawPolyline( &output[0], output.size() );
1065 }
virtual void DrawPolyline(const std::deque< VECTOR2D > &aPointList) override
Draw a polyline.
Definition: opengl_gal.cpp:917
Bezier curves to polygon converter.
Definition: bezier_curves.h:35

References DrawPolyline(), and BEZIER_POLY::GetPoly().

◆ drawFilledSemiCircle()

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 1672 of file opengl_gal.cpp.

1674 {
1675  Save();
1676 
1677  currentManager->Reserve( 3 );
1678  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1679  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1680 
1681  /* Draw a triangle that contains the semicircle, then shade it to leave only
1682  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1683  * (if you want to understand more, check the vertex shader source [shader.vert]).
1684  * Shader uses these coordinates to determine if fragments are inside the semicircle or not.
1685  * v2
1686  * /\
1687  * /__\
1688  * v0 //__\\ v1
1689  */
1691  currentManager->Vertex( -aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1692 
1694  currentManager->Vertex( aRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1695 
1697  currentManager->Vertex( 0.0f, aRadius * 2.0f, layerDepth ); // v2
1698 
1699  Restore();
1700 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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...

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 drawSemiCircle().

◆ DrawGrid()

void OPENGL_GAL::DrawGrid ( )
overridevirtual

Draw the grid

Reimplemented from KIGFX::GAL.

Definition at line 1239 of file opengl_gal.cpp.

1240 {
1243 
1245 
1246  // sub-pixel lines all render the same
1247  float minorLineWidth =
1248  std::fmax( 1.0f, gridLineWidth ) * getWorldPixelSize() / GetBackingScaleFactor();
1249  float majorLineWidth = minorLineWidth * 2.0f;
1250 
1251  // Draw the axis and grid
1252  // For the drawing the start points, end points and increments have
1253  // to be calculated in world coordinates
1254  VECTOR2D worldStartPoint = screenWorldMatrix * VECTOR2D( 0.0, 0.0 );
1255  VECTOR2D worldEndPoint = screenWorldMatrix * VECTOR2D( screenSize );
1256 
1257  // Draw axes if desired
1258  if( axesEnabled )
1259  {
1260  SetLineWidth( minorLineWidth );
1262 
1263  DrawLine( VECTOR2D( worldStartPoint.x, 0 ), VECTOR2D( worldEndPoint.x, 0 ) );
1264  DrawLine( VECTOR2D( 0, worldStartPoint.y ), VECTOR2D( 0, worldEndPoint.y ) );
1265  }
1266 
1267  // force flush
1269 
1270  if( !gridVisibility || gridSize.x == 0 || gridSize.y == 0 )
1271  return;
1272 
1273  VECTOR2D gridScreenSize( gridSize );
1274 
1275  double gridThreshold = computeMinGridSpacing() / worldScale;
1276 
1278  gridThreshold *= 2.0;
1279 
1280  // If we cannot display the grid density, scale down by a tick size and
1281  // try again. Eventually, we get some representation of the grid
1282  while( std::min( gridScreenSize.x, gridScreenSize.y ) <= gridThreshold )
1283  {
1284  gridScreenSize = gridScreenSize * static_cast<double>( gridTick );
1285  }
1286 
1287  // Compute grid starting and ending indexes to draw grid points on the
1288  // visible screen area
1289  // Note: later any point coordinate will be offsetted by gridOrigin
1290  int gridStartX = KiROUND( ( worldStartPoint.x - gridOrigin.x ) / gridScreenSize.x );
1291  int gridEndX = KiROUND( ( worldEndPoint.x - gridOrigin.x ) / gridScreenSize.x );
1292  int gridStartY = KiROUND( ( worldStartPoint.y - gridOrigin.y ) / gridScreenSize.y );
1293  int gridEndY = KiROUND( ( worldEndPoint.y - gridOrigin.y ) / gridScreenSize.y );
1294 
1295  // Ensure start coordinate > end coordinate
1296  SWAP( gridStartX, >, gridEndX );
1297  SWAP( gridStartY, >, gridEndY );
1298 
1299  // Ensure the grid fills the screen
1300  --gridStartX; ++gridEndX;
1301  --gridStartY; ++gridEndY;
1302 
1303  glDisable( GL_DEPTH_TEST );
1304  glDisable( GL_TEXTURE_2D );
1305 
1306  if( gridStyle == GRID_STYLE::DOTS )
1307  {
1308  glEnable( GL_STENCIL_TEST );
1309  glStencilFunc( GL_ALWAYS, 1, 1 );
1310  glStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
1311  glColor4d( 0.0, 0.0, 0.0, 0.0 );
1312  SetStrokeColor( COLOR4D( 0.0, 0.0, 0.0, 0.0 ) );
1313  }
1314  else
1315  {
1316  glColor4d( gridColor.r, gridColor.g, gridColor.b, gridColor.a );
1318  }
1319 
1321  {
1322 
1323  // Vertical positions
1324  for( int j = gridStartY; j <= gridEndY; j++ )
1325  {
1326  bool tickY = ( j % gridTick == 0 );
1327  const double posY = j * gridScreenSize.y + gridOrigin.y;
1328 
1329  // Horizontal positions
1330  for( int i = gridStartX; i <= gridEndX; i++ )
1331  {
1332  bool tickX = ( i % gridTick == 0 );
1333  SetLineWidth( ( ( tickX && tickY ) ? majorLineWidth : minorLineWidth ) );
1334  auto lineLen = 2.0 * GetLineWidth();
1335  auto posX = i * gridScreenSize.x + gridOrigin.x;
1336 
1337  DrawLine( VECTOR2D( posX - lineLen, posY ), VECTOR2D( posX + lineLen, posY ) );
1338  DrawLine( VECTOR2D( posX, posY - lineLen ), VECTOR2D( posX, posY + lineLen ) );
1339  }
1340  }
1341 
1343  }
1344  else
1345  {
1346  // Vertical lines
1347  for( int j = gridStartY; j <= gridEndY; j++ )
1348  {
1349  const double y = j * gridScreenSize.y + gridOrigin.y;
1350 
1351  // If axes are drawn, skip the lines that would cover them
1352  if( axesEnabled && y == 0.0 )
1353  continue;
1354 
1355  SetLineWidth( ( j % gridTick == 0 ) ? majorLineWidth : minorLineWidth );
1356  VECTOR2D a ( gridStartX * gridScreenSize.x + gridOrigin.x, y );
1357  VECTOR2D b ( gridEndX * gridScreenSize.x + gridOrigin.x, y );
1358 
1359  DrawLine( a, b );
1360  }
1361 
1363 
1364  if( gridStyle == GRID_STYLE::DOTS )
1365  {
1366  glStencilFunc( GL_NOTEQUAL, 0, 1 );
1367  glColor4d( gridColor.r, gridColor.g, gridColor.b, gridColor.a );
1369  }
1370 
1371  // Horizontal lines
1372  for( int i = gridStartX; i <= gridEndX; i++ )
1373  {
1374  const double x = i * gridScreenSize.x + gridOrigin.x;
1375 
1376  // If axes are drawn, skip the lines that would cover them
1377  if( axesEnabled && x == 0.0 )
1378  continue;
1379 
1380  SetLineWidth( ( i % gridTick == 0 ) ? majorLineWidth : minorLineWidth );
1381  VECTOR2D a ( x, gridStartY * gridScreenSize.y + gridOrigin.y );
1382  VECTOR2D b ( x, gridEndY * gridScreenSize.y + gridOrigin.y );
1383  DrawLine( a, b );
1384  }
1385 
1387 
1388  if( gridStyle == GRID_STYLE::DOTS )
1389  glDisable( GL_STENCIL_TEST );
1390  }
1391 
1392  glEnable( GL_DEPTH_TEST );
1393  glEnable( GL_TEXTURE_2D );
1394 }
int gridTick
Every tick line gets the double width.
float GetLineWidth() const
Get the line width.
bool axesEnabled
Should the axes be drawn.
double computeMinGridSpacing() const
compute minimum grid spacing from the grid settings
GRID_STYLE gridStyle
Grid display style.
double g
Green component.
Definition: color4d.h:303
MATRIX3x3D screenWorldMatrix
Screen transformation.
virtual void SetLineWidth(float aLineWidth)
Set the line width.
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
double b
Blue component.
Definition: color4d.h:304
Auxiliary rendering target (noncached)
Definition: definitions.h:49
double getWorldPixelSize() const
Definition: opengl_gal.cpp:368
double a
Alpha component.
Definition: color4d.h:305
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
unsigned int mainBuffer
Main rendering target.
Definition: opengl_gal.h:305
COLOR4D axesColor
Color of the axes.
float gridLineWidth
Line width of the grid.
virtual void DrawLine(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint) override
Draw a line.
Definition: opengl_gal.cpp:607
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.
void EndDrawing() const
Function EndDrawing() finishes drawing operations.
virtual void SetTarget(RENDER_TARGET aTarget) override
Sets the target for rendering.
virtual void SetStrokeColor(const COLOR4D &aColor)
Set the stroke color.
COLOR4D gridColor
Color of the grid.
bool gridVisibility
Should the grid be shown.
void EnableDepthTest(bool aEnabled)
Function EnableDepthTest() Enables/disables Z buffer depth test.
virtual float GetBackingScaleFactor() const
double worldScale
The scale factor world->screen.
VECTOR2D gridSize
The grid size.
VECTOR2I screenSize
Screen size in screen coordinates.
constexpr ret_type KiROUND(fp_type v)
Round a floating point number to an integer using "round halfway cases away from zero".
Definition: util.h:61
#define SWAP(varA, condition, varB)
Swap the variables if a condition is met.
Definition: definitions.h:31
double r
Red component.
Definition: color4d.h:302
COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:40

References KIGFX::COLOR4D::a, KIGFX::GAL::axesColor, KIGFX::GAL::axesEnabled, KIGFX::COLOR4D::b, compositor, KIGFX::GAL::computeMinGridSpacing(), KIGFX::DOTS, DrawLine(), KIGFX::VERTEX_MANAGER::EnableDepthTest(), KIGFX::VERTEX_MANAGER::EndDrawing(), KIGFX::COLOR4D::g, HIDPI_GL_CANVAS::GetBackingScaleFactor(), KIGFX::GAL::GetLineWidth(), getWorldPixelSize(), KIGFX::GAL::gridColor, KIGFX::GAL::gridLineWidth, KIGFX::GAL::gridOrigin, KIGFX::GAL::gridSize, KIGFX::GAL::gridStyle, KIGFX::GAL::gridTick, KIGFX::GAL::gridVisibility, KiROUND(), mainBuffer, nonCachedManager, KIGFX::COLOR4D::r, KIGFX::GAL::screenSize, KIGFX::GAL::screenWorldMatrix, KIGFX::OPENGL_COMPOSITOR::SetBuffer(), KIGFX::GAL::SetLineWidth(), KIGFX::GAL::SetStrokeColor(), SetTarget(), KIGFX::SMALL_CROSS, SWAP, KIGFX::TARGET_NONCACHED, KIGFX::GAL::worldScale, VECTOR2< T >::x, and VECTOR2< T >::y.

◆ DrawGroup()

void OPENGL_GAL::DrawGroup ( int  aGroupNumber)
overridevirtual

Draw the stored group.

Parameters
aGroupNumberis the group number.

Reimplemented from KIGFX::GAL.

Definition at line 1504 of file opengl_gal.cpp.

1505 {
1506  if( groups[aGroupNumber] )
1507  cachedManager->DrawItem( *groups[aGroupNumber] );
1508 }
void DrawItem(const VERTEX_ITEM &aItem) const
Function DrawItem() draws an item to the buffer.
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299

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

◆ DrawLine()

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 607 of file opengl_gal.cpp.

608 {
610 
611  drawLineQuad( aStartPoint, aEndPoint );
612 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:303
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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:302

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawLineQuad(), KIGFX::COLOR4D::g, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

Referenced by DrawArc(), DrawArcSegment(), and DrawGrid().

◆ drawLineQuad()

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 1611 of file opengl_gal.cpp.

1612 {
1613  /* Helper drawing: ____--- v3 ^
1614  * ____---- ... \ \
1615  * ____---- ... \ end \
1616  * v1 ____---- ... ____---- \ width
1617  * ---- ...___---- \ \
1618  * \ ___...-- \ v
1619  * \ ____----... ____---- v2
1620  * ---- ... ____----
1621  * start \ ... ____----
1622  * \... ____----
1623  * ----
1624  * v0
1625  * dots mark triangles' hypotenuses
1626  */
1627 
1628  auto v1 = currentManager->GetTransformation() * glm::vec4( aStartPoint.x, aStartPoint.y, 0.0, 0.0 );
1629  auto v2 = currentManager->GetTransformation() * glm::vec4( aEndPoint.x, aEndPoint.y, 0.0, 0.0 );
1630 
1631  VECTOR2D vs( v2.x - v1.x, v2.y - v1.y );
1632 
1633  currentManager->Reserve( 6 );
1634 
1635  // Line width is maintained by the vertex shader
1636  currentManager->Shader( SHADER_LINE_A, lineWidth, vs.x, vs.y );
1637  currentManager->Vertex( aStartPoint, layerDepth );
1638 
1639  currentManager->Shader( SHADER_LINE_B, lineWidth, vs.x, vs.y );
1640  currentManager->Vertex( aStartPoint, layerDepth );
1641 
1642  currentManager->Shader( SHADER_LINE_C, lineWidth, vs.x, vs.y );
1643  currentManager->Vertex( aEndPoint, layerDepth );
1644 
1645  currentManager->Shader( SHADER_LINE_D, lineWidth, vs.x, vs.y );
1646  currentManager->Vertex( aEndPoint, layerDepth );
1647 
1648  currentManager->Shader( SHADER_LINE_E, lineWidth, vs.x, vs.y );
1649  currentManager->Vertex( aEndPoint, layerDepth );
1650 
1651  currentManager->Shader( SHADER_LINE_F, lineWidth, vs.x, vs.y );
1652  currentManager->Vertex( aStartPoint, layerDepth );
1653 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
const glm::mat4 & GetTransformation() const
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.
float lineWidth
The line width.
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...

References currentManager, KIGFX::VERTEX_MANAGER::GetTransformation(), KIGFX::GAL::layerDepth, KIGFX::GAL::lineWidth, KIGFX::VERTEX_MANAGER::Reserve(), KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_LINE_A, KIGFX::SHADER_LINE_B, KIGFX::SHADER_LINE_C, KIGFX::SHADER_LINE_D, KIGFX::SHADER_LINE_E, KIGFX::SHADER_LINE_F, KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

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

◆ DrawPolygon() [1/4]

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 940 of file opengl_gal.cpp.

941 {
942  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aPointList.size()] );
943  GLdouble* ptr = points.get();
944 
945  for( const VECTOR2D& p : aPointList )
946  {
947  *ptr++ = p.x;
948  *ptr++ = p.y;
949  *ptr++ = layerDepth;
950  }
951 
952  drawPolygon( points.get(), aPointList.size() );
953 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.

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

Referenced by DrawPolygon().

◆ DrawPolygon() [2/4]

void OPENGL_GAL::DrawPolygon ( const VECTOR2D  aPointList[],
int  aListSize 
)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 956 of file opengl_gal.cpp.

957 {
958  auto points = std::unique_ptr<GLdouble[]>( new GLdouble[3 * aListSize] );
959  GLdouble* target = points.get();
960  const VECTOR2D* src = aPointList;
961 
962  for( int i = 0; i < aListSize; ++i )
963  {
964  *target++ = src->x;
965  *target++ = src->y;
966  *target++ = layerDepth;
967  ++src;
968  }
969 
970  drawPolygon( points.get(), aListSize );
971 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.

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

◆ DrawPolygon() [3/4]

void OPENGL_GAL::DrawPolygon ( const SHAPE_POLY_SET aPolySet)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 1011 of file opengl_gal.cpp.

1012 {
1013  if ( aPolySet.IsTriangulationUpToDate() )
1014  {
1015  drawTriangulatedPolyset( aPolySet );
1016  return;
1017  }
1018 
1019  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
1020  {
1021  const SHAPE_LINE_CHAIN& outline = aPolySet.COutline( j );
1022  DrawPolygon( outline );
1023  }
1024 }
int OutlineCount() const
Returns the number of outlines in the set
virtual void DrawPolygon(const std::deque< VECTOR2D > &aPointList) override
Draw a polygon.
Definition: opengl_gal.cpp:940
bool IsTriangulationUpToDate() const
void drawTriangulatedPolyset(const SHAPE_POLY_SET &aPoly)
Draws a set of polygons with a cached triangulation.
Definition: opengl_gal.cpp:974
SHAPE_LINE_CHAIN.
const SHAPE_LINE_CHAIN & COutline(int aIndex) const

References SHAPE_POLY_SET::COutline(), DrawPolygon(), drawTriangulatedPolyset(), SHAPE_POLY_SET::IsTriangulationUpToDate(), and SHAPE_POLY_SET::OutlineCount().

◆ DrawPolygon() [4/4]

void OPENGL_GAL::DrawPolygon ( const SHAPE_LINE_CHAIN aPolySet)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 1028 of file opengl_gal.cpp.

1029 {
1030  if( aPolygon.SegmentCount() == 0 )
1031  return;
1032 
1033  const int pointCount = aPolygon.SegmentCount() + 1;
1034  std::unique_ptr<GLdouble[]> points( new GLdouble[3 * pointCount] );
1035  GLdouble* ptr = points.get();
1036 
1037  for( int i = 0; i < pointCount; ++i )
1038  {
1039  const VECTOR2I& p = aPolygon.CPoint( i );
1040  *ptr++ = p.x;
1041  *ptr++ = p.y;
1042  *ptr++ = layerDepth;
1043  }
1044 
1045  drawPolygon( points.get(), pointCount );
1046 }
double layerDepth
The actual layer depth.
void drawPolygon(GLdouble *aPoints, int aPointCount)
Draws a filled polygon.

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

◆ drawPolygon()

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 1737 of file opengl_gal.cpp.

1738 {
1739  if( isFillEnabled )
1740  {
1743 
1744  // Any non convex polygon needs to be tesselated
1745  // for this purpose the GLU standard functions are used
1746  TessParams params = { currentManager, tessIntersects };
1747  gluTessBeginPolygon( tesselator, &params );
1748  gluTessBeginContour( tesselator );
1749 
1750  GLdouble* point = aPoints;
1751 
1752  for( int i = 0; i < aPointCount; ++i )
1753  {
1754  gluTessVertex( tesselator, point, point );
1755  point += 3; // 3 coordinates
1756  }
1757 
1758  gluTessEndContour( tesselator );
1759  gluTessEndPolygon( tesselator );
1760 
1761  // Free allocated intersecting points
1762  tessIntersects.clear();
1763  }
1764 
1765  if( isStrokeEnabled )
1766  {
1767  drawPolyline( [&](int idx) { return VECTOR2D( aPoints[idx * 3], aPoints[idx * 3 + 1] ); },
1768  aPointCount );
1769  }
1770 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
double g
Green component.
Definition: color4d.h:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
bool isStrokeEnabled
Are the outlines stroked ?
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
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:348
bool isFillEnabled
Is filling of graphic objects enabled ?
std::deque< boost::shared_array< GLdouble > > tessIntersects
Storage for intersecting points.
Definition: opengl_gal.h:350
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:302

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::COLOR4D::r, KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_NONE, tesselator, and tessIntersects.

Referenced by DrawPolygon().

◆ DrawPolyline() [1/3]

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 917 of file opengl_gal.cpp.

918 {
919  drawPolyline( [&](int idx) { return aPointList[idx]; }, aPointList.size() );
920 }
void drawPolyline(const std::function< VECTOR2D(int)> &aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.

References drawPolyline().

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

◆ DrawPolyline() [2/3]

void OPENGL_GAL::DrawPolyline ( const VECTOR2D  aPointList[],
int  aListSize 
)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 923 of file opengl_gal.cpp.

924 {
925  drawPolyline( [&](int idx) { return aPointList[idx]; }, aListSize );
926 }
void drawPolyline(const std::function< VECTOR2D(int)> &aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.

References drawPolyline().

◆ DrawPolyline() [3/3]

void OPENGL_GAL::DrawPolyline ( const SHAPE_LINE_CHAIN aLineChain)
overridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 929 of file opengl_gal.cpp.

930 {
931  auto numPoints = aLineChain.PointCount();
932 
933  if( aLineChain.IsClosed() )
934  numPoints += 1;
935 
936  drawPolyline( [&](int idx) { return aLineChain.CPoint(idx); }, numPoints );
937 }
int PointCount() const
Function PointCount()
const VECTOR2I & CPoint(int aIndex) const
Function Point()
void drawPolyline(const std::function< VECTOR2D(int)> &aPointGetter, int aPointCount)
Generic way of drawing a polyline stored in different containers.
bool IsClosed() const
Function IsClosed()

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

◆ drawPolyline()

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 1773 of file opengl_gal.cpp.

1774 {
1775  if( aPointCount < 2 )
1776  return;
1777 
1779  int i;
1780 
1781  for( i = 1; i < aPointCount; ++i )
1782  {
1783  auto start = aPointGetter( i - 1 );
1784  auto end = aPointGetter( i );
1785 
1786  drawLineQuad( start, end );
1787  }
1788 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
void drawLineQuad(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a quad for the line.
double g
Green component.
Definition: color4d.h:303
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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:302

References KIGFX::COLOR4D::a, KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, drawLineQuad(), KIGFX::COLOR4D::g, KIGFX::COLOR4D::r, and KIGFX::GAL::strokeColor.

Referenced by drawPolygon(), and DrawPolyline().

◆ DrawRectangle()

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 879 of file opengl_gal.cpp.

880 {
881  // Compute the diagonal points of the rectangle
882  VECTOR2D diagonalPointA( aEndPoint.x, aStartPoint.y );
883  VECTOR2D diagonalPointB( aStartPoint.x, aEndPoint.y );
884 
885  // Fill the rectangle
886  if( isFillEnabled )
887  {
888  currentManager->Reserve( 6 );
891 
892  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
893  currentManager->Vertex( diagonalPointA.x, diagonalPointA.y, layerDepth );
894  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
895 
896  currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth );
897  currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth );
898  currentManager->Vertex( diagonalPointB.x, diagonalPointB.y, layerDepth );
899  }
900 
901  // Stroke the outline
902  if( isStrokeEnabled )
903  {
905 
906  std::deque<VECTOR2D> pointList;
907  pointList.push_back( aStartPoint );
908  pointList.push_back( diagonalPointA );
909  pointList.push_back( aEndPoint );
910  pointList.push_back( diagonalPointB );
911  pointList.push_back( aStartPoint );
912  DrawPolyline( pointList );
913  }
914 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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:917
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:302

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.

◆ DrawSegment()

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 615 of file opengl_gal.cpp.

617 {
618  if( aStartPoint == aEndPoint ) // 0 length segments are just a circle.
619  {
620  DrawCircle( aStartPoint, aWidth/2 );
621  return;
622  }
623 
624  if( isFillEnabled || aWidth == 1.0 )
625  {
627 
628  SetLineWidth( aWidth );
629  drawLineQuad( aStartPoint, aEndPoint );
630  }
631  else
632  {
633  auto startEndVector = aEndPoint - aStartPoint;
634  auto lineAngle = startEndVector.Angle();
635  // Outlined tracks
636  double lineLength = startEndVector.EuclideanNorm();
637 
638  SetLineWidth( 1.0 );
640 
641  Save();
642 
643  currentManager->Translate( aStartPoint.x, aStartPoint.y, 0.0 );
644  currentManager->Rotate( lineAngle, 0.0f, 0.0f, 1.0f );
645 
646  drawLineQuad( VECTOR2D( 0.0, aWidth / 2.0 ),
647  VECTOR2D( lineLength, aWidth / 2.0 ) );
648 
649  drawLineQuad( VECTOR2D( 0.0, -aWidth / 2.0 ),
650  VECTOR2D( lineLength, -aWidth / 2.0 ) );
651 
652  // Draw line caps
653  drawStrokedSemiCircle( VECTOR2D( 0.0, 0.0 ), aWidth / 2, M_PI / 2 );
654  drawStrokedSemiCircle( VECTOR2D( lineLength, 0.0 ), aWidth / 2, -M_PI / 2 );
655 
656  Restore();
657  }
658 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:303
COLOR4D fillColor
The fill color.
virtual void SetLineWidth(float aLineWidth)
Set the line width.
double b
Blue component.
Definition: color4d.h:304
virtual void Save() override
Save the context.
double a
Alpha component.
Definition: color4d.h:305
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
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...
double Angle() const
Function Angle computes the angle of the vector.
Definition: vector2d.h:313
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:302
virtual void DrawCircle(const VECTOR2D &aCenterPoint, double aRadius) override
Draw a circle using world coordinates.
Definition: opengl_gal.cpp:661

References KIGFX::COLOR4D::a, VECTOR2< T >::Angle(), KIGFX::COLOR4D::b, KIGFX::VERTEX_MANAGER::Color(), currentManager, DrawCircle(), drawLineQuad(), drawStrokedSemiCircle(), 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().

◆ drawSemiCircle()

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 1656 of file opengl_gal.cpp.

1657 {
1658  if( isFillEnabled )
1659  {
1661  drawFilledSemiCircle( aCenterPoint, aRadius, aAngle );
1662  }
1663 
1664  if( isStrokeEnabled )
1665  {
1667  drawStrokedSemiCircle( aCenterPoint, aRadius, aAngle );
1668  }
1669 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
double g
Green component.
Definition: color4d.h:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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:302
void drawFilledSemiCircle(const VECTOR2D &aCenterPoint, double aRadius, double aAngle)
Draw a filled semicircle.

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.

◆ drawStrokedSemiCircle()

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 1703 of file opengl_gal.cpp.

1705 {
1706  double outerRadius = aRadius + ( lineWidth / 2 );
1707 
1708  Save();
1709 
1710  currentManager->Reserve( 3 );
1711  currentManager->Translate( aCenterPoint.x, aCenterPoint.y, 0.0f );
1712  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1713 
1714  /* Draw a triangle that contains the semicircle, then shade it to leave only
1715  * the semicircle. Parameters given to Shader() are indices of the triangle's vertices
1716  * (if you want to understand more, check the vertex shader source [shader.vert]), the
1717  * radius and the line width. Shader uses these coordinates to determine if fragments are
1718  * inside the semicircle or not.
1719  * v2
1720  * /\
1721  * /__\
1722  * v0 //__\\ v1
1723  */
1725  currentManager->Vertex( -outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v0
1726 
1728  currentManager->Vertex( outerRadius * 3.0f / sqrt( 3.0f ), 0.0f, layerDepth ); // v1
1729 
1731  currentManager->Vertex( 0.0f, outerRadius * 2.0f, layerDepth ); // v2
1732 
1733  Restore();
1734 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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...
float lineWidth
The line width.
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...

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().

◆ drawTriangulatedPolyset()

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 974 of file opengl_gal.cpp.

975 {
978 
979  if( isFillEnabled )
980  {
981  for( unsigned int j = 0; j < aPolySet.TriangulatedPolyCount(); ++j )
982  {
983  auto triPoly = aPolySet.TriangulatedPolygon( j );
984 
985  for( size_t i = 0; i < triPoly->GetTriangleCount(); i++ )
986  {
987  VECTOR2I a, b, c;
988  triPoly->GetTriangle( i, a, b, c );
989  currentManager->Vertex( a.x, a.y, layerDepth );
990  currentManager->Vertex( b.x, b.y, layerDepth );
991  currentManager->Vertex( c.x, c.y, layerDepth );
992  }
993  }
994  }
995 
996  if( isStrokeEnabled )
997  {
998  for( int j = 0; j < aPolySet.OutlineCount(); ++j )
999  {
1000  const auto& poly = aPolySet.Polygon( j );
1001 
1002  for( const auto& lc : poly )
1003  {
1004  DrawPolyline( lc );
1005  }
1006  }
1007  }
1008 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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:303
COLOR4D fillColor
The fill color.
double b
Blue component.
Definition: color4d.h:304
double a
Alpha component.
Definition: color4d.h:305
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:917
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:302

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, SHAPE_POLY_SET::OutlineCount(), SHAPE_POLY_SET::Polygon(), KIGFX::COLOR4D::r, KIGFX::VERTEX_MANAGER::Shader(), KIGFX::SHADER_NONE, SHAPE_POLY_SET::TriangulatedPolyCount(), SHAPE_POLY_SET::TriangulatedPolygon(), KIGFX::VERTEX_MANAGER::Vertex(), VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by DrawPolygon().

◆ EnableDepthTest()

void OPENGL_GAL::EnableDepthTest ( bool  aEnabled = false)
overridevirtual

Parameters passed to the GLU tesselator.

Reimplemented from KIGFX::GAL.

Definition at line 2105 of file opengl_gal.cpp.

2106 {
2107  cachedManager->EnableDepthTest( aEnabled );
2108  nonCachedManager->EnableDepthTest( aEnabled );
2109  overlayManager->EnableDepthTest( aEnabled );
2110 }
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
void EnableDepthTest(bool aEnabled)
Function EnableDepthTest() Enables/disables Z buffer depth test.

References cachedManager, KIGFX::VERTEX_MANAGER::EnableDepthTest(), nonCachedManager, and overlayManager.

◆ endDrawing()

void OPENGL_GAL::endDrawing ( )
overrideprivatevirtual

Update handler for OpenGL settings

Reimplemented from KIGFX::GAL.

Definition at line 523 of file opengl_gal.cpp.

524 {
525  wxASSERT_MSG( isContextLocked, "What happened to the context lock?" );
526 
527 #ifdef __WXDEBUG__
528  PROF_COUNTER totalRealTime( "OPENGL_GAL::endDrawing()", true );
529 #endif /* __WXDEBUG__ */
530 
531  // Cached & non-cached containers are rendered to the same buffer
535 
536  // Overlay container is rendered to a different buffer
539 
540  // Be sure that the framebuffer is not colorized (happens on specific GPU&drivers combinations)
541  glColor4d( 1.0, 1.0, 1.0, 1.0 );
542 
543  // Draw the remaining contents, blit the rendering targets to the screen, swap the buffers
546  compositor->Present();
547  blitCursor();
548 
549  SwapBuffers();
550 
551 #ifdef __WXDEBUG__
552  totalRealTime.Stop();
553  wxLogTrace( "GAL_PROFILE", wxT( "OPENGL_GAL::endDrawing(): %.1f ms" ), totalRealTime.msecs() );
554 #endif /* __WXDEBUG__ */
555 }
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:306
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
The class PROF_COUNTER is a small class to help profiling.
Definition: profile.h:44
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
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:305
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:299
void EndDrawing() const
Function EndDrawing() finishes drawing operations.

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

◆ EndGroup()

void OPENGL_GAL::EndGroup ( )
overridevirtual

End the group.

Reimplemented from KIGFX::GAL.

Definition at line 1497 of file opengl_gal.cpp.

1498 {
1500  isGrouping = false;
1501 }
bool isGrouping
Was a group started?
Definition: opengl_gal.h:318
void FinishItem() const
Function FinishItem() does the cleaning after adding an item.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299

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

◆ endUpdate()

void OPENGL_GAL::endUpdate ( )
overrideprivatevirtual

Reimplemented from KIGFX::GAL.

Definition at line 598 of file opengl_gal.cpp.

599 {
600  if( !isInitialized )
601  return;
602 
603  cachedManager->Unmap();
604 }
void Unmap()
Function Unmap() unmaps vertex buffer.
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:316

References cachedManager, isInitialized, and KIGFX::VERTEX_MANAGER::Unmap().

◆ Flush()

void OPENGL_GAL::Flush ( )
overridevirtual

Force all remaining objects to be drawn.

Reimplemented from KIGFX::GAL.

Definition at line 1421 of file opengl_gal.cpp.

1422 {
1423  glFlush();
1424 }

◆ GetBackingScaleFactor()

float HIDPI_GL_CANVAS::GetBackingScaleFactor ( ) const
virtualinherited

Definition at line 56 of file hidpi_gl_canvas.cpp.

57 {
58 #ifdef RETINA_OPENGL_PATCH
59  // this is ugly, but original method isn't marked const although it doesn't modify anything
60  // => clean up when it officially has arrived in wxWidgets
61  return static_cast< wxGLCanvas* >( const_cast< HIDPI_GL_CANVAS* >( this ))->GetBackingScaleFactor();
62 #else
63 
64  // Return the cached value (which originally was set from config or automatically)
65  return m_scale_factor;
66 #endif
67 }
double m_scale_factor
The current scale factor (e.g.

References HIDPI_GL_CANVAS::m_scale_factor.

Referenced by beginDrawing(), DrawGrid(), HIDPI_GL_CANVAS::GetNativePixelSize(), getScreenPixelSize(), and ResizeScreen().

◆ GetClearColor()

const COLOR4D& KIGFX::GAL::GetClearColor ( ) const
inlineinherited

Definition at line 219 of file graphics_abstraction_layer.h.

220  {
221  return m_clearColor;
222  }

References KIGFX::GAL::m_clearColor.

Referenced by EDIT_POINTS::ViewDraw().

◆ getCursorColor()

COLOR4D GAL::getCursorColor ( ) const
protectedinherited

Gets the actual cursor color to draw.

Definition at line 240 of file graphics_abstraction_layer.cpp.

241 {
242  auto color = cursorColor;
243 
244  // dim the cursor if it's only on because it was forced
245  // (this helps to provide a hint for active tools)
246  if( !isCursorEnabled )
247  {
248  color.a = color.a * 0.5;
249  }
250 
251  return color;
252 }
bool isCursorEnabled
Is the cursor enabled?
int color
Definition: DXF_plotter.cpp:61
COLOR4D cursorColor
Cursor color.

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

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

◆ GetFillColor()

const COLOR4D& KIGFX::GAL::GetFillColor ( ) const
inlineinherited

Get the fill color.

Returns
the color for filling a outline.

Definition at line 269 of file graphics_abstraction_layer.h.

270  {
271  return fillColor;
272  }
COLOR4D fillColor
The fill color.

References KIGFX::GAL::fillColor.

◆ GetGlyphSize()

◆ GetGridLineWidth()

float KIGFX::GAL::GetGridLineWidth ( ) const
inlineinherited

Get the grid line width.

Returns
the grid line width

Definition at line 937 of file graphics_abstraction_layer.h.

938  {
939  return gridLineWidth;
940  }
float gridLineWidth
Line width of the grid.

References KIGFX::GAL::gridLineWidth.

◆ GetGridPoint()

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 218 of file graphics_abstraction_layer.cpp.

219 {
220 #if 0
221  // This old code expects a non zero grid size, which can be wrong here.
222  return VECTOR2D( KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x,
223  KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y );
224 #else
225  // if grid size == 0.0 there is no grid, so use aPoint as grid reference position
226  double cx = gridSize.x > 0.0 ? KiROUND( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x
227  : aPoint.x;
228  double cy = gridSize.y > 0.0 ? KiROUND( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y
229  : aPoint.y;
230 
231  return VECTOR2D( cx, cy );
232 #endif
233 }
VECTOR2D gridOffset
The grid offset to compensate cursor position.
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
VECTOR2D gridSize
The grid size.
constexpr ret_type KiROUND(fp_type v)
Round a floating point number to an integer using "round halfway cases away from zero".
Definition: util.h:61

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

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

◆ GetGridSize()

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 889 of file graphics_abstraction_layer.h.

890  {
891  return gridSize;
892  }
VECTOR2D gridSize
The grid size.

References KIGFX::GAL::gridSize.

Referenced by SCH_DRAW_PANEL::SwitchBackend().

◆ GetHorizontalJustify()

EDA_TEXT_HJUSTIFY_T KIGFX::GAL::GetHorizontalJustify ( ) const
inlineinherited

Returns current text horizontal justification setting.

Definition at line 491 of file graphics_abstraction_layer.h.

492  {
494  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
EDA_TEXT_HJUSTIFY_T m_horizontalJustify
Horizontal justification.

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

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

◆ GetLineWidth()

float KIGFX::GAL::GetLineWidth ( ) const
inlineinherited

◆ GetLookAtPoint()

const VECTOR2D& KIGFX::GAL::GetLookAtPoint ( ) const
inlineinherited

Get the look at point.

Returns
the look at point.

Definition at line 691 of file graphics_abstraction_layer.h.

692  {
693  return lookAtPoint;
694  }
VECTOR2D lookAtPoint
Point to be looked at in world space.

References KIGFX::GAL::lookAtPoint.

◆ GetMaxDepth()

double KIGFX::GAL::GetMaxDepth ( ) const
inlineinherited

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

Definition at line 760 of file graphics_abstraction_layer.h.

761  {
762  return depthRange.y;
763  }
VECTOR2D depthRange
Range of the depth.

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

◆ GetMinDepth()

double KIGFX::GAL::GetMinDepth ( ) const
inlineinherited

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

Definition at line 752 of file graphics_abstraction_layer.h.

753  {
754  return depthRange.x;
755  }
VECTOR2D depthRange
Range of the depth.

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

◆ GetNativePixelSize()

wxSize HIDPI_GL_CANVAS::GetNativePixelSize ( ) const
virtualinherited

Definition at line 44 of file hidpi_gl_canvas.cpp.

45 {
46  wxSize size = wxGLCanvas::GetClientSize();
47 
48  const float scaleFactor = GetBackingScaleFactor();
49  size.x *= scaleFactor;
50  size.y *= scaleFactor;
51 
52  return size;
53 }
virtual float GetBackingScaleFactor() const

References HIDPI_GL_CANVAS::GetBackingScaleFactor().

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

◆ getNewGroupNumber()

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 1978 of file opengl_gal.cpp.

1979 {
1980  wxASSERT_MSG( groups.size() < std::numeric_limits<unsigned int>::max(),
1981  wxT( "There are no free slots to store a group" ) );
1982 
1983  while( groups.find( groupCounter ) != groups.end() )
1984  {
1985  groupCounter++;
1986  }
1987 
1988  return groupCounter++;
1989 }
GROUPS_MAP groups
Stores informations about VBO objects (groups)
Definition: opengl_gal.h:296
unsigned int groupCounter
Counter used for generating keys for groups.
Definition: opengl_gal.h:297

References groupCounter, and groups.

Referenced by BeginGroup().

◆ GetOverbarVerticalPosition()

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 386 of file graphics_abstraction_layer.h.

387  {
389  }
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.

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

◆ GetRotation()

double KIGFX::GAL::GetRotation ( ) const
inlineinherited

Get the rotation angle.

Returns
The rotation angle (radians).

Definition at line 731 of file graphics_abstraction_layer.h.

732  {
733  return rotation;
734  }
double rotation
Rotation transformation (radians)

References KIGFX::GAL::rotation.

◆ GetScaleFactor()

double HIDPI_GL_CANVAS::GetScaleFactor ( ) const
inherited

Get the current scale factor.

Definition at line 76 of file hidpi_gl_canvas.cpp.

77 {
78  return m_scale_factor;
79 }
double m_scale_factor
The current scale factor (e.g.

References HIDPI_GL_CANVAS::m_scale_factor.

Referenced by updatedGalDisplayOptions().

◆ GetScreenPixelSize()

const VECTOR2I& KIGFX::GAL::GetScreenPixelSize ( ) const
inlineinherited

◆ getScreenPixelSize()

VECTOR2D OPENGL_GAL::getScreenPixelSize ( ) const
private

Definition at line 375 of file opengl_gal.cpp.

376 {
377  auto sf = GetBackingScaleFactor();
378  return VECTOR2D( 2.0 / (double) ( screenSize.x * sf ), 2.0 / (double) ( screenSize.y * sf ) );
379 }
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
virtual float GetBackingScaleFactor() const
VECTOR2I screenSize
Screen size in screen coordinates.

References HIDPI_GL_CANVAS::GetBackingScaleFactor(), KIGFX::GAL::screenSize, VECTOR2< T >::x, and VECTOR2< T >::y.

Referenced by beginDrawing().

◆ GetScreenWorldMatrix()

const MATRIX3x3D& KIGFX::GAL::GetScreenWorldMatrix ( ) const
inlineinherited

Get the screen <-> world transformation matrix.

Returns
the transformation matrix.

Definition at line 627 of file graphics_abstraction_layer.h.

628  {
629  return screenWorldMatrix;
630  }
MATRIX3x3D screenWorldMatrix
Screen transformation.

References KIGFX::GAL::screenWorldMatrix.

Referenced by KIGFX::SCH_PAINTER::getShadowWidth(), getWorldPixelSize(), screenSpaceCircle(), screenSpaceLine(), and KIGFX::VIEW::ToWorld().

◆ GetStrokeColor()

const COLOR4D& KIGFX::GAL::GetStrokeColor ( ) const
inlineinherited

Get the stroke color.

Returns
the color for stroking the outline.

Definition at line 289 of file graphics_abstraction_layer.h.

290  {
291  return strokeColor;
292  }
COLOR4D strokeColor
The color of the outlines.

References KIGFX::GAL::strokeColor.

◆ GetStrokeFont()

const STROKE_FONT& KIGFX::GAL::GetStrokeFont ( ) const
inlineinherited

Definition at line 331 of file graphics_abstraction_layer.h.

332  {
333  return strokeFont;
334  }
STROKE_FONT strokeFont
Instance of object that stores information about how to draw texts.

References KIGFX::GAL::strokeFont.

Referenced by EDA_TEXT::GetTextBox().

◆ GetTarget()

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 1565 of file opengl_gal.cpp.

1566 {
1567  return currentTarget;
1568 }
RENDER_TARGET currentTarget
Current rendering target.
Definition: opengl_gal.h:307

References currentTarget.

Referenced by DrawBitmap().

◆ GetTextLineSize()

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 172 of file graphics_abstraction_layer.cpp.

173 {
174  // Compute the X and Y size of a given text.
175  // Because computeTextLineSize expects a one line text,
176  // aText is expected to be only one line text.
177  return strokeFont.computeTextLineSize( aText );
178 }
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.

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

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

◆ GetVerticalJustify()

EDA_TEXT_VJUSTIFY_T KIGFX::GAL::GetVerticalJustify ( ) const
inlineinherited

Returns current text vertical justification setting.

Definition at line 509 of file graphics_abstraction_layer.h.

510  {
512  }
EDA_TEXT_VJUSTIFY_T m_verticalJustify
Vertical justification.
struct KIGFX::GAL::TEXT_PROPERTIES textProperties

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

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

◆ getWorldPixelSize()

double OPENGL_GAL::getWorldPixelSize ( ) const
private

Definition at line 368 of file opengl_gal.cpp.

369 {
370  auto matrix = GetScreenWorldMatrix();
371  return std::min( std::abs( matrix.GetScale().x ), std::abs( matrix.GetScale().y ) );
372 }
const MATRIX3x3D & GetScreenWorldMatrix() const
Get the screen <-> world transformation matrix.

References KIGFX::GAL::GetScreenWorldMatrix().

Referenced by beginDrawing(), and DrawGrid().

◆ GetWorldScale()

double KIGFX::GAL::GetWorldScale ( ) const
inlineinherited

Get the world scale.

Returns
the actual world scale factor.

Definition at line 770 of file graphics_abstraction_layer.h.

771  {
772  return worldScale;
773  }
double worldScale
The scale factor world->screen.

References KIGFX::GAL::worldScale.

Referenced by GRID_HELPER::BestDragOrigin(), GRID_HELPER::BestSnapAnchor(), KIGFX::PCB_PAINTER::draw(), SCH_BASE_FRAME::RedrawScreen(), and KIGFX::PREVIEW::SetConstantGlyphHeight().

◆ GetWorldScreenMatrix()

const MATRIX3x3D& KIGFX::GAL::GetWorldScreenMatrix ( ) const
inlineinherited

Get the world <-> screen transformation matrix.

Returns
the transformation matrix.

Definition at line 617 of file graphics_abstraction_layer.h.

618  {
619  return worldScreenMatrix;
620  }
MATRIX3x3D worldScreenMatrix
World transformation.

References KIGFX::GAL::worldScreenMatrix.

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

◆ GetZoomFactor()

double KIGFX::GAL::GetZoomFactor ( ) const
inlineinherited

Get the zoom factor.

Returns
the zoom factor.

Definition at line 711 of file graphics_abstraction_layer.h.

712  {
713  return zoomFactor;
714  }
double zoomFactor
The zoom factor.

References KIGFX::GAL::zoomFactor.

Referenced by EDA_DRAW_PANEL_GAL::GetLegacyZoom(), EDA_DRAW_FRAME::GetZoomLevelIndicator(), and SCH_BASE_FRAME::RedrawScreen().

◆ init()

void OPENGL_GAL::init ( )
private

Basic OpenGL initialization.

Definition at line 1992 of file opengl_gal.cpp.

1993 {
1994  wxASSERT( IsShownOnScreen() );
1995 
1996  wxASSERT_MSG( isContextLocked, "This should only be called from within a locked context." );
1997 
1998  GLenum err = glewInit();
1999 
2000  if( GLEW_OK != err )
2001  throw std::runtime_error( (const char*) glewGetErrorString( err ) );
2002 
2003  // Check the OpenGL version (minimum 2.1 is required)
2004  if( !GLEW_VERSION_2_1 )
2005  throw std::runtime_error( "OpenGL 2.1 or higher is required!" );
2006 
2007 #if defined (__LINUX__) // calling enableGlDebug crashes opengl on some OS (OSX and some Windows)
2008 #ifdef DEBUG
2009  if( GLEW_ARB_debug_output )
2010  enableGlDebug( true );
2011 #endif
2012 #endif
2013 
2014  // Framebuffers have to be supported
2015  if( !GLEW_EXT_framebuffer_object )
2016  throw std::runtime_error( "Framebuffer objects are not supported!" );
2017 
2018  // Vertex buffer has to be supported
2019  if( !GLEW_ARB_vertex_buffer_object )
2020  throw std::runtime_error( "Vertex buffer objects are not supported!" );
2021 
2022  // Prepare shaders
2024  throw std::runtime_error( "Cannot compile vertex shader!" );
2025 
2027  throw std::runtime_error( "Cannot compile fragment shader!" );
2028 
2029  if( !shader->IsLinked() && !shader->Link() )
2030  throw std::runtime_error( "Cannot link the shaders!" );
2031 
2032  // Check if video card supports textures big enough to fit the font atlas
2033  int maxTextureSize;
2034  glGetIntegerv( GL_MAX_TEXTURE_SIZE, &maxTextureSize );
2035 
2036  if( maxTextureSize < (int) font_image.width || maxTextureSize < (int)font_image.height )
2037  {
2038  // TODO implement software texture scaling
2039  // for bitmap fonts and use a higher resolution texture?
2040  throw std::runtime_error( "Requested texture size is not supported" );
2041  }
2042 
2043  cachedManager = new VERTEX_MANAGER( true );
2044  nonCachedManager = new VERTEX_MANAGER( false );
2045  overlayManager = new VERTEX_MANAGER( false );
2046 
2047  // Make VBOs use shaders
2051 
2052  isInitialized = true;
2053 }
bool IsLinked() const
Returns true if shaders are linked correctly.
Definition: shader.h:124
bool LoadShaderFromStrings(SHADER_TYPE aShaderType, Args &&... aArgs)
Add a shader and compile the shader sources.
Definition: shader.h:99
VERTEX_MANAGER * overlayManager
Container for storing overlaid VERTEX_ITEMs.
Definition: opengl_gal.h:301
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
Fragment shader.
Definition: shader.h:47
bool Link()
Link the shaders.
Definition: shader.cpp:97
SHADER * shader
There is only one shader used for different objects.
Definition: opengl_gal.h:310
void enableGlDebug(bool aEnable)
Enables/disables OpenGL driver messages output.
Definition: utils.cpp:140
VERTEX_MANAGER * nonCachedManager
Container for storing non-cached VERTEX_ITEMs.
Definition: opengl_gal.h:300
void SetShader(SHADER &aShader) const
Function SetShader() sets a shader program that is going to be used during rendering.
FONT_IMAGE_TYPE font_image
Definition: gl_resources.cpp:4
Vertex shader.
Definition: shader.h:46
VERTEX_MANAGER * cachedManager
Container for storing cached VERTEX_ITEMs.
Definition: opengl_gal.h:299
bool isInitialized
Basic initialization flag, has to be done when the window is visible.
Definition: opengl_gal.h:316

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

Referenced by beginDrawing(), and beginUpdate().

◆ IsCairoEngine()

virtual bool KIGFX::GAL::IsCairoEngine ( )
inlinevirtualinherited

Returns true if the GAL engine is a cairo based type.

Reimplemented in KIGFX::CAIRO_GAL_BASE.

Definition at line 79 of file graphics_abstraction_layer.h.

79 { return false; }

◆ IsCursorEnabled()

bool KIGFX::GAL::IsCursorEnabled ( ) const
inlineinherited

Returns information about cursor visibility.

Returns
True if cursor is visible.

Definition at line 990 of file graphics_abstraction_layer.h.

991  {
993  }
bool isCursorEnabled
Is the cursor enabled?
bool forceDisplayCursor
Always show cursor.

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

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

◆ IsFlippedX()

bool KIGFX::GAL::IsFlippedX ( ) const
inlineinherited

Return true if flip flag for the X axis is set.

Definition at line 790 of file graphics_abstraction_layer.h.

791  {
792  return globalFlipX;
793  }
bool globalFlipX
Flag for X axis flipping.

References KIGFX::GAL::globalFlipX.

Referenced by KIGFX::CAIRO_GAL_BASE::angle_xform(), KIGFX::CAIRO_GAL_BASE::arc_angles_xform_and_normalize(), and KIGFX::WS_PROXY_VIEW_ITEM::ViewDraw().

◆ IsFlippedY()

bool KIGFX::GAL::IsFlippedY ( ) const
inlineinherited

Return true if flip flag for the Y axis is set.

Definition at line 798 of file graphics_abstraction_layer.h.

799  {
800  return globalFlipY;
801  }
bool globalFlipY
Flag for Y axis flipping.

References KIGFX::GAL::globalFlipY.

◆ IsFontBold()

bool KIGFX::GAL::IsFontBold ( ) const
inlineinherited

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

Definition at line 437 of file graphics_abstraction_layer.h.

438  {
439  return textProperties.m_bold;
440  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties

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

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

◆ IsFontItalic()

bool KIGFX::GAL::IsFontItalic ( ) const
inlineinherited

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

Definition at line 455 of file graphics_abstraction_layer.h.

456  {
457  return textProperties.m_italic;
458  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties

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

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

◆ IsInitialized()

virtual bool KIGFX::OPENGL_GAL::IsInitialized ( ) const
inlineoverridevirtual

Returns the initalization status for the canvas.

Reimplemented from KIGFX::GAL.

Definition at line 92 of file opengl_gal.h.

93  {
94  // is*Initialized flags, but it is enough for OpenGL to show up
95  return IsShownOnScreen() && !GetClientRect().IsEmpty();
96  }

◆ IsOpenGlEngine()

virtual bool KIGFX::OPENGL_GAL::IsOpenGlEngine ( )
inlineoverridevirtual

Returns true if the GAL engine is a opengl based type.

Reimplemented from KIGFX::GAL.

Definition at line 89 of file opengl_gal.h.

89 { return true; }

◆ IsTextMirrored()

bool KIGFX::GAL::IsTextMirrored ( ) const
inlineinherited

Returns true if text should displayed mirrored.

Definition at line 473 of file graphics_abstraction_layer.h.

474  {
475  return textProperties.m_mirrored;
476  }
struct KIGFX::GAL::TEXT_PROPERTIES textProperties

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

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

◆ IsVisible()

bool KIGFX::OPENGL_GAL::IsVisible ( ) const
inlineoverridevirtual

Reimplemented from KIGFX::GAL.

Definition at line 99 of file opengl_gal.h.

100  {
101  return IsShownOnScreen() && !GetClientRect().IsEmpty();
102  }

Referenced by beginDrawing(), and beginUpdate().

◆ lockContext()

void OPENGL_GAL::lockContext ( int  aClientCookie)
overrideprivatevirtual

Private: use GAL_CONTEXT_LOCKER RAII object.

Reimplemented from KIGFX::GAL.

Definition at line 558 of file opengl_gal.cpp.

559 {
560  wxASSERT_MSG( !isContextLocked, "Context already locked." );
561  isContextLocked = true;
562  lockClientCookie = aClientCookie;
563 
565 }
bool isContextLocked
Used for assertion checking.
Definition: opengl_gal.h:319
static GL_CONTEXT_MANAGER & Get()
Function Get returns the GL_CONTEXT_MANAGER instance (singleton).
void LockCtx(wxGLContext *aContext, wxGLCanvas *aCanvas)
Function LockCtx sets a context as current and prevents other canvases from switching it.
wxGLContext * glPrivContext
Canvas-specific OpenGL context.
Definition: opengl_gal.h:287

References GL_CONTEXT_MANAGER::Get(), glPrivContext, isContextLocked, lockClientCookie, and GL_CONTEXT_MANAGER::LockCtx().

◆ OnGalDisplayOptionsChanged()

void GAL::OnGalDisplayOptionsChanged ( const GAL_DISPLAY_OPTIONS aOptions)
overrideprotectedvirtualinherited

Handler for observer settings changes.

Implements KIGFX::GAL_DISPLAY_OPTIONS_OBSERVER.

Definition at line 92 of file graphics_abstraction_layer.cpp.

93 {
94  // defer to the child class first
95  updatedGalDisplayOptions( aOptions );
96 
97  // there is no refresh to do at this level
98 }
virtual bool updatedGalDisplayOptions(const GAL_DISPLAY_OPTIONS &aOptions)
Function updatedGalDisplayOptions.

References KIGFX::GAL::updatedGalDisplayOptions().

◆ onPaint()

void OPENGL_GAL::onPaint ( wxPaintEvent &  aEvent)
private

This is the OnPaint event handler.

Parameters
aEventis the OnPaint event.

Definition at line 1932 of file opengl_gal.cpp.

1933 {
1934  PostPaint();
1935 }
void PostPaint()
Function PostPaint posts an event to m_paint_listener.
Definition: opengl_gal.h:248

References PostPaint().

Referenced by OPENGL_GAL().

◆ PopDepth()

void KIGFX::GAL::PopDepth ( )
inlineinherited

Restores previously stored drawing depth for the depth stack.

Definition at line 1032 of file graphics_abstraction_layer.h.

1033  {
1034  layerDepth = depthStack.top();
1035  depthStack.pop();
1036  }
double layerDepth
The actual layer depth.
std::stack< double > depthStack
Stored depth values.

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

Referenced by KIGFX::VIEW_GROUP::ViewDraw().

◆ PostPaint()

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 248 of file opengl_gal.h.

249  {
250  if( paintListener )
251  {
252  wxPaintEvent redrawEvent;
253  wxPostEvent( paintListener, redrawEvent );
254  }
255  }
wxEvtHandler * paintListener
Definition: opengl_gal.h:290

References paintListener.

Referenced by onPaint().

◆ PushDepth()

void KIGFX::GAL::PushDepth ( )
inlineinherited

Stores current drawing depth on the depth stack.

Definition at line 1024 of file graphics_abstraction_layer.h.

1025  {
1026  depthStack.push( layerDepth );
1027  }
double layerDepth
The actual layer depth.
std::stack< double > depthStack
Stored depth values.

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

Referenced by KIGFX::VIEW_GROUP::ViewDraw().

◆ ResetTextAttributes()

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 157 of file graphics_abstraction_layer.cpp.

158 {
159  // Tiny but non-zero - this will always need setting
160  // there is no built-in default
161  SetGlyphSize( { 1.0, 1.0 } );
162 
165 
166  SetFontBold( false );
167  SetFontItalic( false );
168  SetTextMirrored( false );
169 }
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.

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::PREVIEW::ARC_ASSISTANT::ViewDraw().

◆ ResizeScreen()

void OPENGL_GAL::ResizeScreen ( int  aWidth,
int  aHeight 
)
overridevirtual

Resizes the canvas.

Reimplemented from KIGFX::GAL.

Definition at line 1397 of file opengl_gal.cpp.

1398 {
1399  screenSize = VECTOR2I( aWidth, aHeight );
1400 
1401  // Resize framebuffers
1402  const float scaleFactor = GetBackingScaleFactor();
1403  compositor->Resize( aWidth * scaleFactor, aHeight * scaleFactor );
1404  isFramebufferInitialized = false;
1405 
1406  wxGLCanvas::SetSize( aWidth, aHeight );
1407 }
VECTOR2< int > VECTOR2I
Definition: vector2d.h:594
OPENGL_COMPOSITOR * compositor
Handles multiple rendering targets.
Definition: opengl_gal.h:304
bool isFramebufferInitialized
Are the framebuffers initialized?
Definition: opengl_gal.h:313
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.

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

◆ Restore()

void OPENGL_GAL::Restore ( )
overridevirtual

Restore the context.

Reimplemented from KIGFX::GAL.

Definition at line 1479 of file opengl_gal.cpp.

1480 {
1482 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
void PopMatrix()
Function PopMatrix() pops the current transformation matrix stack.

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

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

◆ Rotate()

void OPENGL_GAL::Rotate ( double  aAngle)
overridevirtual

Rotate the context.

Parameters
aAngleis the rotation angle in radians.

Reimplemented from KIGFX::GAL.

Definition at line 1455 of file opengl_gal.cpp.

1456 {
1457  currentManager->Rotate( aAngle, 0.0f, 0.0f, 1.0f );
1458 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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...

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

◆ Save()

void OPENGL_GAL::Save ( )
overridevirtual

Save the context.

Reimplemented from KIGFX::GAL.

Definition at line 1473 of file opengl_gal.cpp.

1474 {
1476 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
void PushMatrix()
Function PushMatrix() pushes the current transformation matrix stack.

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

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

◆ Scale()

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 1467 of file opengl_gal.cpp.

1468 {
1469  currentManager->Scale( aScale.x, aScale.y, 0.0f );
1470 }
VERTEX_MANAGER * currentManager
Currently used VERTEX_MANAGER (for storing VERTEX_ITEMs)
Definition: opengl_gal.h:298
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...

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

◆ SetAxesColor()

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 909 of file graphics_abstraction_layer.h.

910  {
911  axesColor = aAxesColor;
912  }
COLOR4D axesColor
Color of the axes.

References KIGFX::GAL::axesColor.

Referenced by KIGFX::CAIRO_GAL_BASE::CAIRO_GAL_BASE(), LIB_EDIT_FRAME::CommonSettingsChanged(), OPENGL_GAL(), and LIB_EDIT_FRAME::SwitchCanvas().

◆ SetAxesEnabled()

void KIGFX::GAL::SetAxesEnabled ( bool  aAxesEnabled)
inlineinherited

◆ SetClearColor()

void KIGFX::GAL::SetClearColor ( const COLOR4D aColor)
inlineinherited

◆ SetCoarseGrid()

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 927 of file graphics_abstraction_layer.h.

928  {
929  gridTick = aInterval;
930  }
int gridTick
Every tick line gets the double width.

References KIGFX::GAL::gridTick.

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

◆ SetCursorColor()

void KIGFX::GAL::SetCursorColor ( const COLOR4D aCursorColor)
inlineinherited

Set the cursor color.

Parameters
aCursorColoris the color of the cursor.

Definition at line 1000 of file graphics_abstraction_layer.h.

1001  {
1002  cursorColor = aCursorColor;
1003  }
COLOR4D cursorColor
Cursor color.

References KIGFX::GAL::cursorColor.

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

◆ SetCursorEnabled()

void KIGFX::GAL::SetCursorEnabled ( bool  aCursorEnabled)
inlineinherited

Enable/disable cursor.

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

Definition at line 981 of file graphics_abstraction_layer.h.

982  {
983  isCursorEnabled = aCursorEnabled;
984  }
bool isCursorEnabled
Is the cursor enabled?

References KIGFX::GAL::isCursorEnabled.

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

◆ SetDepthRange()

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 744 of file graphics_abstraction_layer.h.

745  {
746  depthRange = aDepthRange;
747  }
VECTOR2D depthRange
Range of the depth.

References KIGFX::GAL::depthRange.

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

◆ SetFillColor()

virtual void KIGFX::GAL::SetFillColor ( const COLOR4D aColor)
inlinevirtualinherited

◆ SetFlip()

void KIGFX::GAL::SetFlip ( bool  xAxis,
bool  yAxis 
)