KiCad PCB EDA Suite
graphics_abstraction_layer.h
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1 /*
2  * This program source code file is part of KICAD, a free EDA CAD application.
3  *
4  * Copyright (C) 2012 Torsten Hueter, torstenhtr <at> gmx.de
5  * Copyright (C) 2016-2017 Kicad Developers, see change_log.txt for contributors.
6  *
7  * Graphics Abstraction Layer (GAL) - base class
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, you may find one here:
21  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
22  * or you may search the http://www.gnu.org website for the version 2 license,
23  * or you may write to the Free Software Foundation, Inc.,
24  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
25  */
26 
27 #ifndef GRAPHICSABSTRACTIONLAYER_H_
28 #define GRAPHICSABSTRACTIONLAYER_H_
29 
30 #include <deque>
31 #include <stack>
32 #include <limits>
33 
34 #include <math/matrix3x3.h>
35 
36 #include <gal/color4d.h>
37 #include <gal/definitions.h>
38 #include <gal/stroke_font.h>
40 #include <newstroke_font.h>
41 
42 class SHAPE_LINE_CHAIN;
43 class SHAPE_POLY_SET;
44 
45 namespace KIGFX
46 {
47 
59 {
60 public:
61  // Constructor / Destructor
62  GAL( GAL_DISPLAY_OPTIONS& aOptions );
63  virtual ~GAL();
64 
66  virtual bool IsInitialized() const { return true; }
67 
69  virtual bool IsVisible() const { return true; }
70 
71  // ---------------
72  // Drawing methods
73  // ---------------
74 
76  virtual void BeginDrawing() {};
77 
79  virtual void EndDrawing() {};
80 
82  virtual void BeginUpdate() {}
83 
85  virtual void EndUpdate() {}
86 
95  virtual void DrawLine( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint ) {};
96 
106  virtual void DrawSegment( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint, double aWidth ) {};
107 
113  virtual void DrawPolyline( const std::deque<VECTOR2D>& aPointList ) {};
114  virtual void DrawPolyline( const VECTOR2D aPointList[], int aListSize ) {};
115  virtual void DrawPolyline( const SHAPE_LINE_CHAIN& aLineChain ) {};
116 
123  virtual void DrawCircle( const VECTOR2D& aCenterPoint, double aRadius ) {};
124 
133  virtual void
134  DrawArc( const VECTOR2D& aCenterPoint, double aRadius, double aStartAngle, double aEndAngle ) {};
135 
150  virtual void
151  DrawArcSegment( const VECTOR2D& aCenterPoint, double aRadius, double aStartAngle,
152  double aEndAngle, double aWidth ) {};
153 
160  virtual void DrawRectangle( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint ) {};
161 
167  virtual void DrawPolygon( const std::deque<VECTOR2D>& aPointList ) {};
168  virtual void DrawPolygon( const VECTOR2D aPointList[], int aListSize ) {};
169  virtual void DrawPolygon( const SHAPE_POLY_SET& aPolySet ) {};
170 
179  virtual void DrawCurve( const VECTOR2D& startPoint, const VECTOR2D& controlPointA,
180  const VECTOR2D& controlPointB, const VECTOR2D& endPoint ) {};
181 
182  // --------------
183  // Screen methods
184  // --------------
185 
187  virtual void ResizeScreen( int aWidth, int aHeight ) {};
188 
190  virtual bool Show( bool aShow ) { return true; };
191 
194  {
195  return screenSize;
196  }
197 
199  virtual void Flush() {};
200 
205  virtual void ClearScreen( const COLOR4D& aColor ) {};
206 
207  // -----------------
208  // Attribute setting
209  // -----------------
210 
216  virtual void SetIsFill( bool aIsFillEnabled )
217  {
218  isFillEnabled = aIsFillEnabled;
219  }
220 
226  virtual void SetIsStroke( bool aIsStrokeEnabled )
227  {
228  isStrokeEnabled = aIsStrokeEnabled;
229  }
230 
236  virtual void SetFillColor( const COLOR4D& aColor )
237  {
238  fillColor = aColor;
239  }
240 
246  virtual void SetStrokeColor( const COLOR4D& aColor )
247  {
248  strokeColor = aColor;
249  }
250 
256  inline const COLOR4D& GetStrokeColor() const
257  {
258  return strokeColor;
259  }
260 
266  virtual void SetLineWidth( double aLineWidth )
267  {
268  lineWidth = aLineWidth;
269  }
270 
276  inline double GetLineWidth() const
277  {
278  return lineWidth;
279  }
280 
286  virtual void SetLayerDepth( double aLayerDepth )
287  {
288  assert( aLayerDepth <= depthRange.y );
289  assert( aLayerDepth >= depthRange.x );
290 
291  layerDepth = aLayerDepth;
292  }
293 
294  // ----
295  // Text
296  // ----
297 
298  const STROKE_FONT& GetStrokeFont() const
299  {
300  return strokeFont;
301  }
302 
310  virtual void StrokeText( const wxString& aText, const VECTOR2D& aPosition,
311  double aRotationAngle )
312  {
313  strokeFont.Draw( aText, aPosition, aRotationAngle );
314  }
315 
324  virtual void BitmapText( const wxString& aText, const VECTOR2D& aPosition,
325  double aRotationAngle )
326  {
327  // Fallback: use stroke font
328 
329  // Handle flipped view
330  if( globalFlipX )
332 
333  StrokeText( aText, aPosition, aRotationAngle );
334 
335  if( globalFlipX )
337  }
338 
346  VECTOR2D GetTextLineSize( const UTF8& aText ) const;
347 
354  {
356  }
357 
363  virtual void SetTextAttributes( const EDA_TEXT* aText );
364 
371  void ResetTextAttributes();
372 
378  inline void SetGlyphSize( const VECTOR2D aGlyphSize )
379  {
380  textProperties.m_glyphSize = aGlyphSize;
381  }
382 
386  const VECTOR2D& GetGlyphSize() const
387  {
389  }
390 
396  inline void SetFontBold( const bool aBold )
397  {
398  textProperties.m_bold = aBold;
399  }
400 
404  inline bool IsFontBold() const
405  {
406  return textProperties.m_bold;
407  }
408 
414  inline void SetFontItalic( const bool aItalic )
415  {
416  textProperties.m_italic = aItalic;
417  }
418 
422  inline bool IsFontItalic() const
423  {
424  return textProperties.m_italic;
425  }
426 
432  inline void SetTextMirrored( const bool aMirrored )
433  {
434  textProperties.m_mirrored = aMirrored;
435  }
436 
440  inline bool IsTextMirrored() const
441  {
442  return textProperties.m_mirrored;
443  }
444 
450  inline void SetHorizontalJustify( const EDA_TEXT_HJUSTIFY_T aHorizontalJustify )
451  {
452  textProperties.m_horizontalJustify = aHorizontalJustify;
453  }
454 
459  {
461  }
462 
468  inline void SetVerticalJustify( const EDA_TEXT_VJUSTIFY_T aVerticalJustify )
469  {
470  textProperties.m_verticalJustify = aVerticalJustify;
471  }
472 
477  {
479  }
480 
481 
482  // --------------
483  // Transformation
484  // --------------
485 
491  virtual void Transform( const MATRIX3x3D& aTransformation ) {};
492 
498  virtual void Rotate( double aAngle ) {};
499 
505  virtual void Translate( const VECTOR2D& aTranslation ) {};
506 
512  virtual void Scale( const VECTOR2D& aScale ) {};
513 
515  virtual void Save() {};
516 
518  virtual void Restore() {};
519 
520  // --------------------------------------------
521  // Group methods
522  // ---------------------------------------------
523 
532  virtual int BeginGroup() { return 0; };
533 
535  virtual void EndGroup() {};
536 
542  virtual void DrawGroup( int aGroupNumber ) {};
543 
550  virtual void ChangeGroupColor( int aGroupNumber, const COLOR4D& aNewColor ) {};
551 
558  virtual void ChangeGroupDepth( int aGroupNumber, int aDepth ) {};
559 
565  virtual void DeleteGroup( int aGroupNumber ) {};
566 
570  virtual void ClearCache() {};
571 
572  // --------------------------------------------------------
573  // Handling the world <-> screen transformation
574  // --------------------------------------------------------
575 
577  virtual void ComputeWorldScreenMatrix();
578 
585  {
586  return worldScreenMatrix;
587  }
588 
595  {
596  return screenWorldMatrix;
597  }
598 
604  inline void SetWorldScreenMatrix( const MATRIX3x3D& aMatrix )
605  {
606  worldScreenMatrix = aMatrix;
607  }
608 
618  inline void SetWorldUnitLength( double aWorldUnitLength )
619  {
620  worldUnitLength = aWorldUnitLength;
621  }
622 
631  inline void SetScreenDPI( double aScreenDPI )
632  {
633  screenDPI = aScreenDPI;
634  }
635 
643  inline void SetLookAtPoint( const VECTOR2D& aPoint )
644  {
645  lookAtPoint = aPoint;
646  }
647 
653  inline const VECTOR2D& GetLookAtPoint() const
654  {
655  return lookAtPoint;
656  }
657 
663  inline void SetZoomFactor( double aZoomFactor )
664  {
665  zoomFactor = aZoomFactor;
666  }
667 
673  inline double GetZoomFactor() const
674  {
675  return zoomFactor;
676  }
677 
686  inline void SetDepthRange( const VECTOR2D& aDepthRange )
687  {
688  depthRange = aDepthRange;
689  }
690 
694  inline double GetMinDepth() const
695  {
696  return depthRange.x;
697  }
698 
702  inline double GetMaxDepth() const
703  {
704  return depthRange.y;
705  }
706 
712  inline double GetWorldScale() const
713  {
714  return worldScale;
715  }
716 
723  inline void SetFlip( bool xAxis, bool yAxis )
724  {
725  globalFlipX = xAxis;
726  globalFlipY = yAxis;
727  }
728 
729 
730  // ---------------------------
731  // Buffer manipulation methods
732  // ---------------------------
733 
737  virtual void SaveScreen() {};
738 
742  virtual void RestoreScreen() {};
743 
749  virtual void SetTarget( RENDER_TARGET aTarget ) {};
750 
756  virtual RENDER_TARGET GetTarget() const { return TARGET_CACHED; };
757 
763  virtual void ClearTarget( RENDER_TARGET aTarget ) {};
764 
765  // -------------
766  // Grid methods
767  // -------------
768 
774  inline void SetGridVisibility( bool aVisibility )
775  {
776  gridVisibility = aVisibility;
777  }
778 
784  inline void SetGridOrigin( const VECTOR2D& aGridOrigin )
785  {
786  gridOrigin = aGridOrigin;
787 
788  if( gridSize.x == 0.0 || gridSize.y == 0.0 )
789  gridOffset = VECTOR2D(0.0, 0.0);
790  else
791  gridOffset = VECTOR2D( (long) gridOrigin.x % (long) gridSize.x,
792  (long) gridOrigin.y % (long) gridSize.y );
793  }
794 
800  inline void SetGridSize( const VECTOR2D& aGridSize )
801  {
802  gridSize = aGridSize;
803 
804  gridOffset = VECTOR2D( (long) gridOrigin.x % (long) gridSize.x,
805  (long) gridOrigin.y % (long) gridSize.y );
806  }
807 
813  inline const VECTOR2D& GetGridSize() const
814  {
815  return gridSize;
816  }
817 
823  inline void SetGridColor( const COLOR4D& aGridColor )
824  {
825  gridColor = aGridColor;
826  }
827 
833  inline void SetAxesColor( const COLOR4D& aAxesColor )
834  {
835  axesColor = aAxesColor;
836  }
837 
841  inline void SetAxesEnabled( bool aAxesEnabled )
842  {
843  axesEnabled = aAxesEnabled;
844  }
845 
851  inline void SetCoarseGrid( int aInterval )
852  {
853  gridTick = aInterval;
854  }
855 
861  inline double GetGridLineWidth() const
862  {
863  return gridLineWidth;
864  }
865 
867  virtual void DrawGrid();
868 
876  VECTOR2D GetGridPoint( const VECTOR2D& aPoint ) const;
877 
884  inline VECTOR2D ToWorld( const VECTOR2D& aPoint ) const
885  {
886  return VECTOR2D( screenWorldMatrix * aPoint );
887  }
888 
895  inline VECTOR2D ToScreen( const VECTOR2D& aPoint ) const
896  {
897  return VECTOR2D( worldScreenMatrix * aPoint );
898  }
899 
905  inline void SetCursorEnabled( bool aCursorEnabled )
906  {
907  isCursorEnabled = aCursorEnabled;
908  }
909 
914  bool IsCursorEnabled() const
915  {
917  }
918 
924  inline void SetCursorColor( const COLOR4D& aCursorColor )
925  {
926  cursorColor = aCursorColor;
927  }
928 
934  virtual void DrawCursor( const VECTOR2D& aCursorPosition ) {};
935 
940  inline void AdvanceDepth()
941  {
942  layerDepth -= 0.05;
943  }
944 
948  inline void PushDepth()
949  {
950  depthStack.push( layerDepth );
951  }
952 
956  inline void PopDepth()
957  {
958  layerDepth = depthStack.top();
959  depthStack.pop();
960  }
961 
962  static const double METRIC_UNIT_LENGTH;
963 
964 protected:
965 
968 
969  std::stack<double> depthStack;
971 
973  double screenDPI;
975 
976  double zoomFactor;
979  double worldScale;
980 
981  bool globalFlipX;
982  bool globalFlipY;
983 
984  double lineWidth;
985 
988 
991 
992  double layerDepth;
994 
995  // Grid settings
1004  int gridTick;
1005  double gridLineWidth;
1007 
1009  // Cursor settings
1015 
1018 
1020  inline void computeWorldScale()
1021  {
1022  worldScale = screenDPI * worldUnitLength * zoomFactor;
1023  }
1024 
1030  double computeMinGridSpacing() const;
1031 
1038  virtual void drawGridLine( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint ) {};
1039 
1041  static const int MIN_DEPTH;
1042  static const int MAX_DEPTH;
1043 
1045  static const int GRID_DEPTH;
1046 
1050  COLOR4D getCursorColor() const;
1051 
1052  // ---------------
1053  // Settings observer interface
1054  // ---------------
1058  void OnGalDisplayOptionsChanged( const GAL_DISPLAY_OPTIONS& aOptions ) override;
1059 
1069  virtual bool updatedGalDisplayOptions( const GAL_DISPLAY_OPTIONS& aOptions );
1070 
1071 private:
1073  {
1077  bool m_bold;
1078  bool m_italic;
1080  } textProperties;
1081 };
1082 } // namespace KIGFX
1083 
1084 #endif /* GRAPHICSABSTRACTIONLAYER_H_ */
double computeMinGridSpacing() const
compute minimum grid spacing from the grid settings
static const int GRID_DEPTH
Depth level on which the grid is drawn.
bool IsCursorEnabled() const
Returns information about cursor visibility.
int gridTick
Every tick line gets the double width.
virtual void SetFillColor(const COLOR4D &aColor)
Set the fill color.
Class UTF8 is an 8 bit std::string that is assuredly encoded in UTF8, and supplies special conversion...
Definition: utf8.h:53
virtual void DrawGroup(int aGroupNumber)
Draw the stored group.
void SetFontItalic(const bool aItalic)
Set italic property of current font.
virtual void DrawPolyline(const std::deque< VECTOR2D > &aPointList)
Draw a polyline.
EDA_TEXT_HJUSTIFY_T GetHorizontalJustify() const
Returns current text horizontal justification setting.
double zoomFactor
The zoom factor.
STROKE_FONT strokeFont
Instance of object that stores information about how to draw texts.
VECTOR2D cursorPosition
Current cursor position (world coordinates)
const COLOR4D & GetStrokeColor() const
Get the stroke color.
virtual void DrawRectangle(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a rectangle.
bool axesEnabled
Should the axes be drawn.
EDA_TEXT_HJUSTIFY_T
Definition: eda_text.h:47
EDA_TEXT_VJUSTIFY_T GetVerticalJustify() const
Returns current text vertical justification setting.
GRID_STYLE
GRID_STYLE: Type definition of the grid style.
VECTOR2D gridOffset
The grid offset to compensate cursor position.
double computeOverbarVerticalPosition() const
Compute the vertical position of an overbar, sometimes used in texts.
double layerDepth
The actual layer depth.
Class CAIRO_GAL is the cairo implementation of the graphics abstraction layer.
Definition: class_module.h:58
virtual void DeleteGroup(int aGroupNumber)
Delete the group from the memory.
virtual void BitmapText(const wxString &aText, const VECTOR2D &aPosition, double aRotationAngle)
Draws a text using a bitmap font.
double GetWorldScale() const
Get the world scale.
bool isCursorEnabled
Is the cursor enabled?
void SetCursorEnabled(bool aCursorEnabled)
Enable/disable cursor.
virtual void SetTextAttributes(const EDA_TEXT *aText)
Loads attributes of the given text (bold/italic/underline/mirrored and so on).
int gridMinSpacing
Minimum screen size of the grid (pixels) below which the grid is not drawn.
GRID_STYLE gridStyle
Grid display style.
virtual void DrawArc(const VECTOR2D &aCenterPoint, double aRadius, double aStartAngle, double aEndAngle)
Draw an arc.
GAL_DISPLAY_OPTIONS & options
EDA_TEXT_VJUSTIFY_T m_verticalJustify
Vertical justification.
const MATRIX3x3D & GetScreenWorldMatrix() const
Get the screen <-> world transformation matrix.
virtual void DrawPolygon(const SHAPE_POLY_SET &aPolySet)
void SetFlip(bool xAxis, bool yAxis)
Sets flipping of the screen.
virtual void EndUpdate()
Disables item update mode.
virtual bool IsVisible() const
Returns true if the GAL canvas is visible on the screen.
COLOR4D fillColor
The fill color.
VECTOR2D depthRange
Range of the depth.
virtual void Transform(const MATRIX3x3D &aTransformation)
Transform the context.
MATRIX3x3D screenWorldMatrix
Screen transformation.
bool globalFlipX
Flag for X axis flipping.
virtual void DrawLine(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a line.
void SetGridOrigin(const VECTOR2D &aGridOrigin)
Set the origin point for the grid.
virtual bool IsInitialized() const
Returns the initalization status for the canvas.
virtual void ComputeWorldScreenMatrix()
Compute the world <-> screen transformation matrix.
void SetScreenDPI(double aScreenDPI)
Set the dots per inch of the screen.
const VECTOR2D & GetLookAtPoint() const
Get the look at point.
virtual void SetLayerDepth(double aLayerDepth)
Set the depth of the layer (position on the z-axis)
virtual void drawGridLine(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint)
Draw a grid line (usually a simplified line function).
const MATRIX3x3D & GetWorldScreenMatrix() const
Get the world <-> screen transformation matrix.
VECTOR2D lookAtPoint
Point to be looked at in world space.
VECTOR2D ToScreen(const VECTOR2D &aPoint) const
Compute the point position in screen coordinates from given world coordinates.
virtual void EndGroup()
End the group.
virtual void Rotate(double aAngle)
Rotate the context.
virtual void DrawCurve(const VECTOR2D &startPoint, const VECTOR2D &controlPointA, const VECTOR2D &controlPointB, const VECTOR2D &endPoint)
Draw a cubic bezier spline.
Class EDA_TEXT is a mix-in class (via multiple inheritance) that handles texts such as labels...
Definition: eda_text.h:114
virtual void ChangeGroupColor(int aGroupNumber, const COLOR4D &aNewColor)
Changes the color used to draw the group.
static const int MIN_DEPTH
Possible depth range.
double lineWidth
The line width.
GAL(GAL_DISPLAY_OPTIONS &aOptions)
void SetFontBold(const bool aBold)
Set bold property of current font.
void SetGridColor(const COLOR4D &aGridColor)
Set the grid color.
virtual void SaveScreen()
Save the screen contents.
virtual void SetLineWidth(double aLineWidth)
Set the line width.
COLOR4D cursorColor
Cursor color.
bool IsFontBold() const
Returns true if current font has 'bold' attribute enabled.
virtual void DrawSegment(const VECTOR2D &aStartPoint, const VECTOR2D &aEndPoint, double aWidth)
Draw a rounded segment.
bool fullscreenCursor
Shape of the cursor (fullscreen or small cross)
void OnGalDisplayOptionsChanged(const GAL_DISPLAY_OPTIONS &aOptions) override
Handler for observer settings changes.
void ResetTextAttributes()
Reset text attributes to default styling.
bool isStrokeEnabled
Are the outlines stroked ?
VECTOR2< double > VECTOR2D
Definition: vector2d.h:589
COLOR4D getCursorColor() const
Gets the actual cursor color to draw.
virtual void SetIsFill(bool aIsFillEnabled)
Enable/disable fill.
void PopDepth()
Restores previously stored drawing depth for the depth stack.
Class SHAPE_POLY_SET.
static const double METRIC_UNIT_LENGTH
COLOR4D axesColor
Color of the axes.
virtual void StrokeText(const wxString &aText, const VECTOR2D &aPosition, double aRotationAngle)
Draws a vector type text using preloaded Newstroke font.
virtual int BeginGroup()
Begin a group.
void SetAxesColor(const COLOR4D &aAxesColor)
Set the axes color.
virtual void ClearTarget(RENDER_TARGET aTarget)
Clears the target for rendering.
COLOR4D strokeColor
The color of the outlines.
std::stack< double > depthStack
Stored depth values.
double worldUnitLength
The unit length of the world coordinates [inch].
virtual void DrawCursor(const VECTOR2D &aCursorPosition)
Draw the cursor.
virtual void BeginUpdate()
Enables item update mode.
const VECTOR2D & GetGlyphSize() const
VECTOR2D gridOrigin
The grid origin.
void SetTextMirrored(const bool aMirrored)
Set a mirrored property of text.
struct KIGFX::GAL::TEXT_PROPERTIES textProperties
void SetCursorColor(const COLOR4D &aCursorColor)
Set the cursor color.
void SetVerticalJustify(const EDA_TEXT_VJUSTIFY_T aVerticalJustify)
Set the vertical justify for text drawing.
MATRIX3x3D worldScreenMatrix
World transformation.
virtual void DrawPolyline(const SHAPE_LINE_CHAIN &aLineChain)
void SetAxesEnabled(bool aAxesEnabled)
Enables drawing the axes.
virtual void ResizeScreen(int aWidth, int aHeight)
Resizes the canvas.
void SetGridSize(const VECTOR2D &aGridSize)
Set the grid size.
void SetWorldUnitLength(double aWorldUnitLength)
Set the unit length.
virtual void Flush()
Force all remaining objects to be drawn.
virtual bool updatedGalDisplayOptions(const GAL_DISPLAY_OPTIONS &aOptions)
Function updatedGalDisplayOptions.
virtual void DrawGrid()
>
virtual void Scale(const VECTOR2D &aScale)
Scale the context.
const VECTOR2D & GetGridSize() const
Returns the grid size.
EDA_TEXT_VJUSTIFY_T
Definition: eda_text.h:54
bool isFillEnabled
Is filling of graphic objects enabled ?
virtual bool Show(bool aShow)
Shows/hides the GAL canvas.
const VECTOR2I & GetScreenPixelSize() const
Returns GAL canvas size in pixels.
void Draw(const UTF8 &aText, const VECTOR2D &aPosition, double aRotationAngle)
Draw a string.
void computeWorldScale()
Compute the scaling factor for the world->screen matrix.
VECTOR2D GetGridPoint(const VECTOR2D &aPoint) const
Function GetGridPoint() For a given point it returns the nearest point belonging to the grid in world...
void SetWorldScreenMatrix(const MATRIX3x3D &aMatrix)
Set the world <-> screen transformation matrix.
virtual void SetStrokeColor(const COLOR4D &aColor)
Set the stroke color.
virtual void DrawPolyline(const VECTOR2D aPointList[], int aListSize)
void SetCoarseGrid(int aInterval)
Draw every tick line wider.
virtual void RestoreScreen()
Restore the screen contents.
void PushDepth()
Stores current drawing depth on the depth stack.
COLOR4D gridColor
Color of the grid.
bool gridVisibility
Should the grid be shown.
virtual void Restore()
Restore the context.
virtual void DrawPolygon(const std::deque< VECTOR2D > &aPointList)
Draw a polygon.
Main rendering target (cached)
Definition: definitions.h:41
virtual void DrawCircle(const VECTOR2D &aCenterPoint, double aRadius)
Draw a circle using world coordinates.
bool globalFlipY
Flag for Y axis flipping.
double GetGridLineWidth() const
Get the grid line width.
Class SHAPE_LINE_CHAIN.
double worldScale
The scale factor world->screen.
double GetOverbarVerticalPosition() const
Compute the vertical position of an overbar, sometimes used in texts.
VECTOR2D gridSize
The grid size.
VECTOR2I screenSize
Screen size in screen coordinates.
void SetZoomFactor(double aZoomFactor)
Set the zoom factor of the scene.
virtual void ChangeGroupDepth(int aGroupNumber, int aDepth)
Changes the depth (Z-axis position) of the group.
double GetLineWidth() const
Get the line width.
double GetZoomFactor() const
Get the zoom factor.
virtual void ClearScreen(const COLOR4D &aColor)
Clear the screen.
void SetGridVisibility(bool aVisibility)
Sets the visibility setting of the grid.
virtual void BeginDrawing()
Begin the drawing, needs to be called for every new frame.
bool IsFontItalic() const
Returns true if current font has 'italic' attribute enabled.
void SetGlyphSize(const VECTOR2D aGlyphSize)
Set the font glyph size.
virtual void DrawArcSegment(const VECTOR2D &aCenterPoint, double aRadius, double aStartAngle, double aEndAngle, double aWidth)
Draw an arc segment.
double GetMinDepth() const
Returns the minimum depth in the currently used range (the top).
void SetLookAtPoint(const VECTOR2D &aPoint)
Set the Point in world space to look at.
const STROKE_FONT & GetStrokeFont() const
virtual void Save()
Save the context.
void SetHorizontalJustify(const EDA_TEXT_HJUSTIFY_T aHorizontalJustify)
Set the horizontal justify for text drawing.
RENDER_TARGET
RENDER_TARGET: Possible rendering targets.
Definition: definitions.h:39
virtual RENDER_TARGET GetTarget() const
Gets the currently used target for rendering.
bool IsTextMirrored() const
Returns true if text should displayed mirrored.
VECTOR2D m_glyphSize
Size of the glyphs.
virtual void EndDrawing()
End the drawing, needs to be called for every new frame.
double GetMaxDepth() const
Returns the maximum depth in the currently used range (the bottom).
virtual void Translate(const VECTOR2D &aTranslation)
Translate the context.
virtual void SetIsStroke(bool aIsStrokeEnabled)
Enable/disable stroked outlines.
VECTOR2D GetTextLineSize(const UTF8 &aText) const
Compute the X and Y size of a given text.
void SetDepthRange(const VECTOR2D &aDepthRange)
Set the range of the layer depth.
void AdvanceDepth()
Changes the current depth to deeper, so it is possible to draw objects right beneath other...
virtual void DrawPolygon(const VECTOR2D aPointList[], int aListSize)
Class STROKE_FONT implements stroke font drawing.
Definition: stroke_font.h:51
VECTOR2D ToWorld(const VECTOR2D &aPoint) const
Compute the point position in world coordinates from given screen coordinates.
bool forceDisplayCursor
Always show cursor.
virtual void ClearCache()
Delete all data created during caching of graphic items.
EDA_TEXT_HJUSTIFY_T m_horizontalJustify
Horizontal justification.
virtual void SetTarget(RENDER_TARGET aTarget)
Sets the target for rendering.
Class GAL is the abstract interface for drawing on a 2D-surface.
double screenDPI
The dots per inch of the screen.
static const int MAX_DEPTH
Class COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:39
double gridLineWidth
Line width of the grid.