1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/graphics.cpp
3 // Purpose: wxGCDC class
4 // Author: Stefan Csomor
8 // Copyright: (c) 2006 Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 #include "wx/wxprec.h"
20 #if wxUSE_GRAPHICS_CONTEXT
23 #include "wx/msw/wrapcdlg.h"
25 #include "wx/window.h"
27 #include "wx/dialog.h"
29 #include "wx/bitmap.h"
32 #include "wx/module.h"
33 // include all dc types that are used as a param
35 #include "wx/dcclient.h"
36 #include "wx/dcmemory.h"
37 #include "wx/dcprint.h"
42 #include "wx/private/graphics.h"
43 #include "wx/msw/wrapgdip.h"
44 #include "wx/msw/dc.h"
45 #if wxUSE_ENH_METAFILE
46 #include "wx/msw/enhmeta.h"
48 #include "wx/dcgraph.h"
50 #include "wx/msw/private.h" // needs to be before #include <commdlg.h>
52 #if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
59 //-----------------------------------------------------------------------------
61 //-----------------------------------------------------------------------------
63 const double RAD2DEG
= 180.0 / M_PI
;
65 //-----------------------------------------------------------------------------
67 //-----------------------------------------------------------------------------
69 inline double dmin(double a
, double b
) { return a
< b
? a
: b
; }
70 inline double dmax(double a
, double b
) { return a
> b
? a
: b
; }
72 inline double DegToRad(double deg
) { return (deg
* M_PI
) / 180.0; }
73 inline double RadToDeg(double deg
) { return (deg
* 180.0) / M_PI
; }
75 // translate a wxColour to a Color
76 inline Color
wxColourToColor(const wxColour
& col
)
78 return Color(col
.Alpha(), col
.Red(), col
.Green(), col
.Blue());
81 } // anonymous namespace
83 //-----------------------------------------------------------------------------
84 // device context implementation
86 // more and more of the dc functionality should be implemented by calling
87 // the appropricate wxGDIPlusContext, but we will have to do that step by step
88 // also coordinate conversions should be moved to native matrix ops
89 //-----------------------------------------------------------------------------
91 // we always stock two context states, one at entry, to be able to preserve the
92 // state we were called with, the other one after changing to HI Graphics orientation
93 // (this one is used for getting back clippings etc)
95 //-----------------------------------------------------------------------------
96 // wxGraphicsPath implementation
97 //-----------------------------------------------------------------------------
99 class wxGDIPlusContext
;
101 class wxGDIPlusPathData
: public wxGraphicsPathData
104 wxGDIPlusPathData(wxGraphicsRenderer
* renderer
, GraphicsPath
* path
= NULL
);
105 ~wxGDIPlusPathData();
107 virtual wxGraphicsObjectRefData
*Clone() const;
110 // These are the path primitives from which everything else can be constructed
113 // begins a new subpath at (x,y)
114 virtual void MoveToPoint( wxDouble x
, wxDouble y
);
116 // adds a straight line from the current point to (x,y)
117 virtual void AddLineToPoint( wxDouble x
, wxDouble y
);
119 // adds a cubic Bezier curve from the current point, using two control points and an end point
120 virtual void AddCurveToPoint( wxDouble cx1
, wxDouble cy1
, wxDouble cx2
, wxDouble cy2
, wxDouble x
, wxDouble y
);
123 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
124 virtual void AddArc( wxDouble x
, wxDouble y
, wxDouble r
, wxDouble startAngle
, wxDouble endAngle
, bool clockwise
) ;
126 // gets the last point of the current path, (0,0) if not yet set
127 virtual void GetCurrentPoint( wxDouble
* x
, wxDouble
* y
) const;
130 virtual void AddPath( const wxGraphicsPathData
* path
);
132 // closes the current sub-path
133 virtual void CloseSubpath();
136 // These are convenience functions which - if not available natively will be assembled
137 // using the primitives from above
140 // appends a rectangle as a new closed subpath
141 virtual void AddRectangle( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
) ;
144 // appends an ellipsis as a new closed subpath fitting the passed rectangle
145 virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ;
147 // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
148 virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
151 // returns the native path
152 virtual void * GetNativePath() const { return m_path
; }
154 // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
155 virtual void UnGetNativePath(void * WXUNUSED(path
)) const {}
157 // transforms each point of this path by the matrix
158 virtual void Transform( const wxGraphicsMatrixData
* matrix
) ;
160 // gets the bounding box enclosing all points (possibly including control points)
161 virtual void GetBox(wxDouble
*x
, wxDouble
*y
, wxDouble
*w
, wxDouble
*h
) const;
163 virtual bool Contains( wxDouble x
, wxDouble y
, wxPolygonFillMode fillStyle
= wxODDEVEN_RULE
) const;
166 GraphicsPath
* m_path
;
169 class wxGDIPlusMatrixData
: public wxGraphicsMatrixData
172 wxGDIPlusMatrixData(wxGraphicsRenderer
* renderer
, Matrix
* matrix
= NULL
) ;
173 virtual ~wxGDIPlusMatrixData() ;
175 virtual wxGraphicsObjectRefData
* Clone() const ;
177 // concatenates the matrix
178 virtual void Concat( const wxGraphicsMatrixData
*t
);
180 // sets the matrix to the respective values
181 virtual void Set(wxDouble a
=1.0, wxDouble b
=0.0, wxDouble c
=0.0, wxDouble d
=1.0,
182 wxDouble tx
=0.0, wxDouble ty
=0.0);
184 // gets the component valuess of the matrix
185 virtual void Get(wxDouble
* a
=NULL
, wxDouble
* b
=NULL
, wxDouble
* c
=NULL
,
186 wxDouble
* d
=NULL
, wxDouble
* tx
=NULL
, wxDouble
* ty
=NULL
) const;
188 // makes this the inverse matrix
189 virtual void Invert();
191 // returns true if the elements of the transformation matrix are equal ?
192 virtual bool IsEqual( const wxGraphicsMatrixData
* t
) const ;
194 // return true if this is the identity matrix
195 virtual bool IsIdentity() const;
201 // add the translation to this matrix
202 virtual void Translate( wxDouble dx
, wxDouble dy
);
204 // add the scale to this matrix
205 virtual void Scale( wxDouble xScale
, wxDouble yScale
);
207 // add the rotation to this matrix (radians)
208 virtual void Rotate( wxDouble angle
);
211 // apply the transforms
214 // applies that matrix to the point
215 virtual void TransformPoint( wxDouble
*x
, wxDouble
*y
) const;
217 // applies the matrix except for translations
218 virtual void TransformDistance( wxDouble
*dx
, wxDouble
*dy
) const;
220 // returns the native representation
221 virtual void * GetNativeMatrix() const;
226 class wxGDIPlusPenData
: public wxGraphicsObjectRefData
229 wxGDIPlusPenData( wxGraphicsRenderer
* renderer
, const wxPen
&pen
);
234 virtual wxDouble
GetWidth() { return m_width
; }
235 virtual Pen
* GetGDIPlusPen() { return m_pen
; }
245 class wxGDIPlusBrushData
: public wxGraphicsObjectRefData
248 wxGDIPlusBrushData( wxGraphicsRenderer
* renderer
);
249 wxGDIPlusBrushData( wxGraphicsRenderer
* renderer
, const wxBrush
&brush
);
250 ~wxGDIPlusBrushData ();
252 void CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
253 wxDouble x2
, wxDouble y2
,
254 const wxGraphicsGradientStops
& stops
);
255 void CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
256 wxDouble xc
, wxDouble yc
,
258 const wxGraphicsGradientStops
& stops
);
260 virtual Brush
* GetGDIPlusBrush() { return m_brush
; }
266 // common part of Create{Linear,Radial}GradientBrush()
267 template <typename T
>
268 void SetGradientStops(T
*brush
, const wxGraphicsGradientStops
& stops
);
272 GraphicsPath
* m_brushPath
;
275 class WXDLLIMPEXP_CORE wxGDIPlusBitmapData
: public wxGraphicsObjectRefData
278 wxGDIPlusBitmapData( wxGraphicsRenderer
* renderer
, Bitmap
* bitmap
);
279 wxGDIPlusBitmapData( wxGraphicsRenderer
* renderer
, const wxBitmap
&bmp
);
280 ~wxGDIPlusBitmapData ();
282 virtual Bitmap
* GetGDIPlusBitmap() { return m_bitmap
; }
289 class wxGDIPlusFontData
: public wxGraphicsObjectRefData
292 wxGDIPlusFontData( wxGraphicsRenderer
* renderer
,
293 const wxGDIPlusContext
* gc
,
295 const wxColour
& col
);
296 ~wxGDIPlusFontData();
298 virtual Brush
* GetGDIPlusBrush() { return m_textBrush
; }
299 virtual Font
* GetGDIPlusFont() { return m_font
; }
305 class wxGDIPlusContext
: public wxGraphicsContext
308 wxGDIPlusContext( wxGraphicsRenderer
* renderer
, const wxDC
& dc
);
309 wxGDIPlusContext( wxGraphicsRenderer
* renderer
, HDC hdc
, wxDouble width
, wxDouble height
);
310 wxGDIPlusContext( wxGraphicsRenderer
* renderer
, HWND hwnd
);
311 wxGDIPlusContext( wxGraphicsRenderer
* renderer
, Graphics
* gr
);
314 virtual ~wxGDIPlusContext();
316 virtual void Clip( const wxRegion
®ion
);
317 // clips drawings to the rect
318 virtual void Clip( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
320 // resets the clipping to original extent
321 virtual void ResetClip();
323 virtual void * GetNativeContext();
325 virtual void StrokePath( const wxGraphicsPath
& p
);
326 virtual void FillPath( const wxGraphicsPath
& p
, wxPolygonFillMode fillStyle
= wxODDEVEN_RULE
);
328 virtual void DrawRectangle( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
330 // stroke lines connecting each of the points
331 virtual void StrokeLines( size_t n
, const wxPoint2DDouble
*points
);
334 virtual void DrawLines( size_t n
, const wxPoint2DDouble
*points
, wxPolygonFillMode fillStyle
= wxODDEVEN_RULE
);
336 virtual bool SetAntialiasMode(wxAntialiasMode antialias
);
338 virtual bool SetCompositionMode(wxCompositionMode op
);
340 virtual void BeginLayer(wxDouble opacity
);
342 virtual void EndLayer();
344 virtual void Translate( wxDouble dx
, wxDouble dy
);
345 virtual void Scale( wxDouble xScale
, wxDouble yScale
);
346 virtual void Rotate( wxDouble angle
);
348 // concatenates this transform with the current transform of this context
349 virtual void ConcatTransform( const wxGraphicsMatrix
& matrix
);
351 // sets the transform of this context
352 virtual void SetTransform( const wxGraphicsMatrix
& matrix
);
354 // gets the matrix of this context
355 virtual wxGraphicsMatrix
GetTransform() const;
357 virtual void DrawBitmap( const wxGraphicsBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
358 virtual void DrawBitmap( const wxBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
359 virtual void DrawIcon( const wxIcon
&icon
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
360 virtual void PushState();
361 virtual void PopState();
363 // sets the font of this context
364 virtual wxGraphicsFont
CreateFont( const wxFont
&font
, const wxColour
&col
= *wxBLACK
) const;
366 virtual void GetTextExtent( const wxString
&str
, wxDouble
*width
, wxDouble
*height
,
367 wxDouble
*descent
, wxDouble
*externalLeading
) const;
368 virtual void GetPartialTextExtents(const wxString
& text
, wxArrayDouble
& widths
) const;
369 virtual bool ShouldOffset() const;
370 virtual void GetSize( wxDouble
* width
, wxDouble
*height
);
372 Graphics
* GetGraphics() const { return m_context
; }
376 wxDouble m_fontScaleRatio
;
382 virtual void DoDrawText(const wxString
& str
, wxDouble x
, wxDouble y
)
383 { DoDrawFilledText(str
, x
, y
, wxNullGraphicsBrush
); }
384 virtual void DoDrawFilledText(const wxString
& str
, wxDouble x
, wxDouble y
,
385 const wxGraphicsBrush
& backgroundBrush
);
388 wxStack
<GraphicsState
> m_stateStack
;
389 GraphicsState m_state1
;
390 GraphicsState m_state2
;
392 DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext
)
395 class wxGDIPlusMeasuringContext
: public wxGDIPlusContext
398 wxGDIPlusMeasuringContext( wxGraphicsRenderer
* renderer
) : wxGDIPlusContext( renderer
, m_hdc
= GetDC(NULL
), 1000, 1000 )
401 wxGDIPlusMeasuringContext()
405 virtual ~wxGDIPlusMeasuringContext()
407 ReleaseDC( NULL
, m_hdc
);
412 DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext
)
415 class wxGDIPlusPrintingContext
: public wxGDIPlusContext
418 wxGDIPlusPrintingContext( wxGraphicsRenderer
* renderer
, const wxDC
& dc
);
419 virtual ~wxGDIPlusPrintingContext() { }
423 //-----------------------------------------------------------------------------
424 // wxGDIPlusRenderer declaration
425 //-----------------------------------------------------------------------------
427 class wxGDIPlusRenderer
: public wxGraphicsRenderer
436 virtual ~wxGDIPlusRenderer()
446 virtual wxGraphicsContext
* CreateContext( const wxWindowDC
& dc
);
448 virtual wxGraphicsContext
* CreateContext( const wxMemoryDC
& dc
);
450 #if wxUSE_PRINTING_ARCHITECTURE
451 virtual wxGraphicsContext
* CreateContext( const wxPrinterDC
& dc
);
454 #if wxUSE_ENH_METAFILE
455 virtual wxGraphicsContext
* CreateContext( const wxEnhMetaFileDC
& dc
);
458 virtual wxGraphicsContext
* CreateContextFromNativeContext( void * context
);
460 virtual wxGraphicsContext
* CreateContextFromNativeWindow( void * window
);
462 virtual wxGraphicsContext
* CreateContext( wxWindow
* window
);
464 virtual wxGraphicsContext
* CreateMeasuringContext();
468 virtual wxGraphicsPath
CreatePath();
472 virtual wxGraphicsMatrix
CreateMatrix( wxDouble a
=1.0, wxDouble b
=0.0, wxDouble c
=0.0, wxDouble d
=1.0,
473 wxDouble tx
=0.0, wxDouble ty
=0.0);
476 virtual wxGraphicsPen
CreatePen(const wxPen
& pen
) ;
478 virtual wxGraphicsBrush
CreateBrush(const wxBrush
& brush
) ;
480 virtual wxGraphicsBrush
481 CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
482 wxDouble x2
, wxDouble y2
,
483 const wxGraphicsGradientStops
& stops
);
485 virtual wxGraphicsBrush
486 CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
487 wxDouble xc
, wxDouble yc
,
489 const wxGraphicsGradientStops
& stops
);
491 // create a native bitmap representation
492 virtual wxGraphicsBitmap
CreateBitmap( const wxBitmap
&bitmap
);
494 // stub: should not be called directly
495 virtual wxGraphicsFont
CreateFont( const wxFont
& WXUNUSED(font
),
496 const wxColour
& WXUNUSED(col
) )
497 { wxFAIL
; return wxNullGraphicsFont
; }
499 // this is used to really create the font
500 wxGraphicsFont
CreateGDIPlusFont( const wxGDIPlusContext
* gc
,
502 const wxColour
&col
);
504 // create a graphics bitmap from a native bitmap
505 virtual wxGraphicsBitmap
CreateBitmapFromNativeBitmap( void* bitmap
);
507 // create a subimage from a native image representation
508 virtual wxGraphicsBitmap
CreateSubBitmap( const wxGraphicsBitmap
&bitmap
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
511 bool EnsureIsLoaded();
514 friend class wxGDIPlusRendererModule
;
518 ULONG_PTR m_gditoken
;
520 DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusRenderer
)
523 //-----------------------------------------------------------------------------
524 // wxGDIPlusPen implementation
525 //-----------------------------------------------------------------------------
527 wxGDIPlusPenData::~wxGDIPlusPenData()
534 void wxGDIPlusPenData::Init()
541 wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer
* renderer
, const wxPen
&pen
)
542 : wxGraphicsObjectRefData(renderer
)
545 m_width
= pen
.GetWidth();
549 m_pen
= new Pen(wxColourToColor(pen
.GetColour()), m_width
);
552 switch ( pen
.GetCap() )
558 case wxCAP_PROJECTING
:
563 cap
= LineCapFlat
; // TODO verify
570 m_pen
->SetLineCap(cap
,cap
, DashCapFlat
);
573 switch ( pen
.GetJoin() )
576 join
= LineJoinBevel
;
580 join
= LineJoinMiter
;
584 join
= LineJoinRound
;
588 join
= LineJoinMiter
;
592 m_pen
->SetLineJoin(join
);
594 m_pen
->SetDashStyle(DashStyleSolid
);
596 DashStyle dashStyle
= DashStyleSolid
;
597 switch ( pen
.GetStyle() )
599 case wxPENSTYLE_SOLID
:
602 case wxPENSTYLE_DOT
:
603 dashStyle
= DashStyleDot
;
606 case wxPENSTYLE_LONG_DASH
:
607 dashStyle
= DashStyleDash
; // TODO verify
610 case wxPENSTYLE_SHORT_DASH
:
611 dashStyle
= DashStyleDash
;
614 case wxPENSTYLE_DOT_DASH
:
615 dashStyle
= DashStyleDashDot
;
617 case wxPENSTYLE_USER_DASH
:
619 dashStyle
= DashStyleCustom
;
621 int count
= pen
.GetDashes( &dashes
);
622 if ((dashes
!= NULL
) && (count
> 0))
624 REAL
*userLengths
= new REAL
[count
];
625 for ( int i
= 0; i
< count
; ++i
)
627 userLengths
[i
] = dashes
[i
];
629 m_pen
->SetDashPattern( userLengths
, count
);
630 delete[] userLengths
;
634 case wxPENSTYLE_STIPPLE
:
636 wxBitmap
* bmp
= pen
.GetStipple();
637 if ( bmp
&& bmp
->Ok() )
639 m_penImage
= Bitmap::FromHBITMAP((HBITMAP
)bmp
->GetHBITMAP(),
641 (HPALETTE
)bmp
->GetPalette()->GetHPALETTE()
646 m_penBrush
= new TextureBrush(m_penImage
);
647 m_pen
->SetBrush( m_penBrush
);
653 if ( pen
.GetStyle() >= wxPENSTYLE_FIRST_HATCH
&&
654 pen
.GetStyle() <= wxPENSTYLE_LAST_HATCH
)
657 switch( pen
.GetStyle() )
659 case wxPENSTYLE_BDIAGONAL_HATCH
:
660 style
= HatchStyleBackwardDiagonal
;
662 case wxPENSTYLE_CROSSDIAG_HATCH
:
663 style
= HatchStyleDiagonalCross
;
665 case wxPENSTYLE_FDIAGONAL_HATCH
:
666 style
= HatchStyleForwardDiagonal
;
668 case wxPENSTYLE_CROSS_HATCH
:
669 style
= HatchStyleCross
;
671 case wxPENSTYLE_HORIZONTAL_HATCH
:
672 style
= HatchStyleHorizontal
;
674 case wxPENSTYLE_VERTICAL_HATCH
:
675 style
= HatchStyleVertical
;
678 style
= HatchStyleHorizontal
;
680 m_penBrush
= new HatchBrush
683 wxColourToColor(pen
.GetColour()),
686 m_pen
->SetBrush( m_penBrush
);
690 if ( dashStyle
!= DashStyleSolid
)
691 m_pen
->SetDashStyle(dashStyle
);
694 //-----------------------------------------------------------------------------
695 // wxGDIPlusBrush implementation
696 //-----------------------------------------------------------------------------
698 wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer
* renderer
)
699 : wxGraphicsObjectRefData(renderer
)
704 wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer
* renderer
, const wxBrush
&brush
)
705 : wxGraphicsObjectRefData(renderer
)
708 if ( brush
.GetStyle() == wxSOLID
)
710 m_brush
= new SolidBrush(wxColourToColor( brush
.GetColour()));
712 else if ( brush
.IsHatch() )
715 switch( brush
.GetStyle() )
717 case wxBRUSHSTYLE_BDIAGONAL_HATCH
:
718 style
= HatchStyleBackwardDiagonal
;
720 case wxBRUSHSTYLE_CROSSDIAG_HATCH
:
721 style
= HatchStyleDiagonalCross
;
723 case wxBRUSHSTYLE_FDIAGONAL_HATCH
:
724 style
= HatchStyleForwardDiagonal
;
726 case wxBRUSHSTYLE_CROSS_HATCH
:
727 style
= HatchStyleCross
;
729 case wxBRUSHSTYLE_HORIZONTAL_HATCH
:
730 style
= HatchStyleHorizontal
;
732 case wxBRUSHSTYLE_VERTICAL_HATCH
:
733 style
= HatchStyleVertical
;
736 style
= HatchStyleHorizontal
;
738 m_brush
= new HatchBrush
741 wxColourToColor(brush
.GetColour()),
747 wxBitmap
* bmp
= brush
.GetStipple();
748 if ( bmp
&& bmp
->Ok() )
750 wxDELETE( m_brushImage
);
751 m_brushImage
= Bitmap::FromHBITMAP((HBITMAP
)bmp
->GetHBITMAP(),
753 (HPALETTE
)bmp
->GetPalette()->GetHPALETTE()
758 m_brush
= new TextureBrush(m_brushImage
);
763 wxGDIPlusBrushData::~wxGDIPlusBrushData()
770 void wxGDIPlusBrushData::Init()
777 template <typename T
>
779 wxGDIPlusBrushData::SetGradientStops(T
*brush
,
780 const wxGraphicsGradientStops
& stops
)
782 const unsigned numStops
= stops
.GetCount();
785 // initial and final colours are set during the brush creation, nothing
790 wxVector
<Color
> colors(numStops
);
791 wxVector
<REAL
> positions(numStops
);
793 for ( unsigned i
= 0; i
< numStops
; i
++ )
795 wxGraphicsGradientStop stop
= stops
.Item(i
);
797 colors
[i
] = wxColourToColor(stop
.GetColour());
798 positions
[i
] = stop
.GetPosition();
801 brush
->SetInterpolationColors(&colors
[0], &positions
[0], numStops
);
805 wxGDIPlusBrushData::CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
806 wxDouble x2
, wxDouble y2
,
807 const wxGraphicsGradientStops
& stops
)
809 LinearGradientBrush
* const
810 brush
= new LinearGradientBrush(PointF(x1
, y1
) , PointF(x2
, y2
),
811 wxColourToColor(stops
.GetStartColour()),
812 wxColourToColor(stops
.GetEndColour()));
815 SetGradientStops(brush
, stops
);
819 wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
820 wxDouble xc
, wxDouble yc
,
822 const wxGraphicsGradientStops
& stops
)
824 m_brushPath
= new GraphicsPath();
825 m_brushPath
->AddEllipse( (REAL
)(xc
-radius
), (REAL
)(yc
-radius
),
826 (REAL
)(2*radius
), (REAL
)(2*radius
));
828 PathGradientBrush
* const brush
= new PathGradientBrush(m_brushPath
);
830 brush
->SetCenterPoint(PointF(xo
, yo
));
831 brush
->SetCenterColor(wxColourToColor(stops
.GetStartColour()));
833 const Color
col(wxColourToColor(stops
.GetEndColour()));
835 brush
->SetSurroundColors(&col
, &count
);
837 SetGradientStops(brush
, stops
);
840 //-----------------------------------------------------------------------------
841 // wxGDIPlusFont implementation
842 //-----------------------------------------------------------------------------
844 wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer
* renderer
,
845 const wxGDIPlusContext
* gc
,
847 const wxColour
& col
)
848 : wxGraphicsObjectRefData( renderer
)
850 wxWCharBuffer s
= font
.GetFaceName().wc_str( *wxConvUI
);
851 int style
= FontStyleRegular
;
852 if ( font
.GetStyle() == wxFONTSTYLE_ITALIC
)
853 style
|= FontStyleItalic
;
854 if ( font
.GetUnderlined() )
855 style
|= FontStyleUnderline
;
856 if ( font
.GetWeight() == wxFONTWEIGHT_BOLD
)
857 style
|= FontStyleBold
;
859 Graphics
* context
= gc
->GetGraphics();
861 Unit fontUnit
= context
->GetPageUnit();
862 // if fontUnit is UnitDisplay, then specify UnitPixel, otherwise
863 // you'll get a "InvalidParameter" from GDI+
864 if ( fontUnit
== UnitDisplay
)
865 fontUnit
= UnitPixel
;
867 REAL points
= font
.GetPointSize();
869 // This scaling is needed when we use unit other than the
870 // default UnitPoint. It works for both display and printing.
871 REAL size
= points
* (100.0 / 72.0);
873 // NB: font unit should match context's unit. We can use UnitPixel,
874 // as that is what the print context should use.
875 m_font
= new Font( s
, size
, style
, fontUnit
);
877 m_textBrush
= new SolidBrush(wxColourToColor(col
));
880 wxGDIPlusFontData::~wxGDIPlusFontData()
886 // the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the
887 // premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied
888 // bytes as parameter, since there is no real copying of the data going in, only references are stored
889 // m_helper has to be kept alive as well
891 //-----------------------------------------------------------------------------
892 // wxGDIPlusBitmapData implementation
893 //-----------------------------------------------------------------------------
895 wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer
* renderer
, Bitmap
* bitmap
) :
896 wxGraphicsObjectRefData( renderer
), m_bitmap( bitmap
)
901 wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer
* renderer
,
902 const wxBitmap
&bmp
) : wxGraphicsObjectRefData( renderer
)
907 Bitmap
* image
= NULL
;
910 Bitmap
interim((HBITMAP
)bmp
.GetHBITMAP(),
912 (HPALETTE
)bmp
.GetPalette()->GetHPALETTE()
918 size_t width
= interim
.GetWidth();
919 size_t height
= interim
.GetHeight();
920 Rect
bounds(0,0,width
,height
);
922 image
= new Bitmap(width
,height
,PixelFormat32bppPARGB
) ;
924 Bitmap
interimMask((HBITMAP
)bmp
.GetMask()->GetMaskBitmap(),NULL
);
925 wxASSERT(interimMask
.GetPixelFormat() == PixelFormat1bppIndexed
);
927 BitmapData dataMask
;
928 interimMask
.LockBits(&bounds
,ImageLockModeRead
,
929 interimMask
.GetPixelFormat(),&dataMask
);
932 BitmapData imageData
;
933 image
->LockBits(&bounds
,ImageLockModeWrite
, PixelFormat32bppPARGB
, &imageData
);
935 BYTE maskPattern
= 0 ;
939 for ( size_t y
= 0 ; y
< height
; ++y
)
942 for( size_t x
= 0 ; x
< width
; ++x
)
947 maskByte
= *((BYTE
*)dataMask
.Scan0
+ dataMask
.Stride
*y
+ maskIndex
);
951 maskPattern
= maskPattern
>> 1;
953 ARGB
*dest
= (ARGB
*)((BYTE
*)imageData
.Scan0
+ imageData
.Stride
*y
+ x
*4);
954 if ( (maskByte
& maskPattern
) == 0 )
959 interim
.GetPixel(x
,y
,&c
) ;
960 *dest
= (c
.GetValue() | Color::AlphaMask
);
965 image
->UnlockBits(&imageData
);
967 interimMask
.UnlockBits(&dataMask
);
968 interim
.UnlockBits(&dataMask
);
972 image
= Bitmap::FromHBITMAP((HBITMAP
)bmp
.GetHBITMAP(),
974 (HPALETTE
)bmp
.GetPalette()->GetHPALETTE()
979 if ( bmp
.HasAlpha() && GetPixelFormatSize(image
->GetPixelFormat()) == 32 )
981 size_t width
= image
->GetWidth();
982 size_t height
= image
->GetHeight();
983 Rect
bounds(0,0,width
,height
);
984 static BitmapData data
;
988 m_helper
->LockBits(&bounds
, ImageLockModeRead
,
989 m_helper
->GetPixelFormat(),&data
);
991 image
= new Bitmap(data
.Width
, data
.Height
, data
.Stride
,
992 PixelFormat32bppPARGB
, (BYTE
*) data
.Scan0
);
994 m_helper
->UnlockBits(&data
);
1001 wxGDIPlusBitmapData::~wxGDIPlusBitmapData()
1007 //-----------------------------------------------------------------------------
1008 // wxGDIPlusPath implementation
1009 //-----------------------------------------------------------------------------
1011 wxGDIPlusPathData::wxGDIPlusPathData(wxGraphicsRenderer
* renderer
, GraphicsPath
* path
) : wxGraphicsPathData(renderer
)
1016 m_path
= new GraphicsPath();
1019 wxGDIPlusPathData::~wxGDIPlusPathData()
1024 wxGraphicsObjectRefData
* wxGDIPlusPathData::Clone() const
1026 return new wxGDIPlusPathData( GetRenderer() , m_path
->Clone());
1033 void wxGDIPlusPathData::MoveToPoint( wxDouble x
, wxDouble y
)
1035 m_path
->StartFigure();
1036 m_path
->AddLine((REAL
) x
,(REAL
) y
,(REAL
) x
,(REAL
) y
);
1039 void wxGDIPlusPathData::AddLineToPoint( wxDouble x
, wxDouble y
)
1041 m_path
->AddLine((REAL
) x
,(REAL
) y
,(REAL
) x
,(REAL
) y
);
1044 void wxGDIPlusPathData::CloseSubpath()
1046 m_path
->CloseFigure();
1049 void wxGDIPlusPathData::AddCurveToPoint( wxDouble cx1
, wxDouble cy1
, wxDouble cx2
, wxDouble cy2
, wxDouble x
, wxDouble y
)
1055 m_path
->GetLastPoint(&start
);
1056 m_path
->AddBezier(start
,c1
,c2
,end
);
1059 // gets the last point of the current path, (0,0) if not yet set
1060 void wxGDIPlusPathData::GetCurrentPoint( wxDouble
* x
, wxDouble
* y
) const
1063 m_path
->GetLastPoint(&start
);
1068 void wxGDIPlusPathData::AddArc( wxDouble x
, wxDouble y
, wxDouble r
, double startAngle
, double endAngle
, bool clockwise
)
1070 double sweepAngle
= endAngle
- startAngle
;
1071 if( fabs(sweepAngle
) >= 2*M_PI
)
1073 sweepAngle
= 2 * M_PI
;
1079 if( sweepAngle
< 0 )
1080 sweepAngle
+= 2 * M_PI
;
1084 if( sweepAngle
> 0 )
1085 sweepAngle
-= 2 * M_PI
;
1089 m_path
->AddArc((REAL
) (x
-r
),(REAL
) (y
-r
),(REAL
) (2*r
),(REAL
) (2*r
),RadToDeg(startAngle
),RadToDeg(sweepAngle
));
1092 void wxGDIPlusPathData::AddRectangle( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1094 m_path
->AddRectangle(RectF(x
,y
,w
,h
));
1097 void wxGDIPlusPathData::AddPath( const wxGraphicsPathData
* path
)
1099 m_path
->AddPath( (GraphicsPath
*) path
->GetNativePath(), FALSE
);
1103 // transforms each point of this path by the matrix
1104 void wxGDIPlusPathData::Transform( const wxGraphicsMatrixData
* matrix
)
1106 m_path
->Transform( (Matrix
*) matrix
->GetNativeMatrix() );
1109 // gets the bounding box enclosing all points (possibly including control points)
1110 void wxGDIPlusPathData::GetBox(wxDouble
*x
, wxDouble
*y
, wxDouble
*w
, wxDouble
*h
) const
1113 m_path
->GetBounds( &bounds
, NULL
, NULL
) ;
1120 bool wxGDIPlusPathData::Contains( wxDouble x
, wxDouble y
, wxPolygonFillMode fillStyle
) const
1122 m_path
->SetFillMode( fillStyle
== wxODDEVEN_RULE
? FillModeAlternate
: FillModeWinding
);
1123 return m_path
->IsVisible( (FLOAT
) x
,(FLOAT
) y
) == TRUE
;
1126 //-----------------------------------------------------------------------------
1127 // wxGDIPlusMatrixData implementation
1128 //-----------------------------------------------------------------------------
1130 wxGDIPlusMatrixData::wxGDIPlusMatrixData(wxGraphicsRenderer
* renderer
, Matrix
* matrix
)
1131 : wxGraphicsMatrixData(renderer
)
1136 m_matrix
= new Matrix();
1139 wxGDIPlusMatrixData::~wxGDIPlusMatrixData()
1144 wxGraphicsObjectRefData
*wxGDIPlusMatrixData::Clone() const
1146 return new wxGDIPlusMatrixData( GetRenderer(), m_matrix
->Clone());
1149 // concatenates the matrix
1150 void wxGDIPlusMatrixData::Concat( const wxGraphicsMatrixData
*t
)
1152 m_matrix
->Multiply( (Matrix
*) t
->GetNativeMatrix());
1155 // sets the matrix to the respective values
1156 void wxGDIPlusMatrixData::Set(wxDouble a
, wxDouble b
, wxDouble c
, wxDouble d
,
1157 wxDouble tx
, wxDouble ty
)
1159 m_matrix
->SetElements(a
,b
,c
,d
,tx
,ty
);
1162 // gets the component valuess of the matrix
1163 void wxGDIPlusMatrixData::Get(wxDouble
* a
, wxDouble
* b
, wxDouble
* c
,
1164 wxDouble
* d
, wxDouble
* tx
, wxDouble
* ty
) const
1167 m_matrix
->GetElements(elements
);
1168 if (a
) *a
= elements
[0];
1169 if (b
) *b
= elements
[1];
1170 if (c
) *c
= elements
[2];
1171 if (d
) *d
= elements
[3];
1172 if (tx
) *tx
= elements
[4];
1173 if (ty
) *ty
= elements
[5];
1176 // makes this the inverse matrix
1177 void wxGDIPlusMatrixData::Invert()
1182 // returns true if the elements of the transformation matrix are equal ?
1183 bool wxGDIPlusMatrixData::IsEqual( const wxGraphicsMatrixData
* t
) const
1185 return m_matrix
->Equals((Matrix
*) t
->GetNativeMatrix())== TRUE
;
1188 // return true if this is the identity matrix
1189 bool wxGDIPlusMatrixData::IsIdentity() const
1191 return m_matrix
->IsIdentity() == TRUE
;
1198 // add the translation to this matrix
1199 void wxGDIPlusMatrixData::Translate( wxDouble dx
, wxDouble dy
)
1201 m_matrix
->Translate(dx
,dy
);
1204 // add the scale to this matrix
1205 void wxGDIPlusMatrixData::Scale( wxDouble xScale
, wxDouble yScale
)
1207 m_matrix
->Scale(xScale
,yScale
);
1210 // add the rotation to this matrix (radians)
1211 void wxGDIPlusMatrixData::Rotate( wxDouble angle
)
1213 m_matrix
->Rotate( RadToDeg(angle
) );
1217 // apply the transforms
1220 // applies that matrix to the point
1221 void wxGDIPlusMatrixData::TransformPoint( wxDouble
*x
, wxDouble
*y
) const
1224 m_matrix
->TransformPoints(&pt
);
1229 // applies the matrix except for translations
1230 void wxGDIPlusMatrixData::TransformDistance( wxDouble
*dx
, wxDouble
*dy
) const
1233 m_matrix
->TransformVectors(&pt
);
1238 // returns the native representation
1239 void * wxGDIPlusMatrixData::GetNativeMatrix() const
1244 //-----------------------------------------------------------------------------
1245 // wxGDIPlusContext implementation
1246 //-----------------------------------------------------------------------------
1248 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext
,wxGraphicsContext
)
1249 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext
,wxGDIPlusContext
)
1251 class wxGDIPlusOffsetHelper
1254 wxGDIPlusOffsetHelper( Graphics
* gr
, bool offset
)
1259 m_gr
->TranslateTransform( 0.5, 0.5 );
1261 ~wxGDIPlusOffsetHelper( )
1264 m_gr
->TranslateTransform( -0.5, -0.5 );
1271 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer
* renderer
, HDC hdc
, wxDouble width
, wxDouble height
)
1272 : wxGraphicsContext(renderer
)
1275 m_context
= new Graphics( hdc
);
1281 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer
* renderer
, const wxDC
& dc
)
1282 : wxGraphicsContext(renderer
)
1286 wxMSWDCImpl
*msw
= wxDynamicCast( dc
.GetImpl() , wxMSWDCImpl
);
1287 HDC hdc
= (HDC
) msw
->GetHDC();
1289 m_context
= new Graphics(hdc
);
1290 wxSize sz
= dc
.GetSize();
1297 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer
* renderer
, HWND hwnd
)
1298 : wxGraphicsContext(renderer
)
1301 m_context
= new Graphics( hwnd
);
1302 RECT rect
= wxGetWindowRect(hwnd
);
1303 m_width
= rect
.right
- rect
.left
;
1304 m_height
= rect
.bottom
- rect
.top
;
1308 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer
* renderer
, Graphics
* gr
)
1309 : wxGraphicsContext(renderer
)
1316 wxGDIPlusContext::wxGDIPlusContext() : wxGraphicsContext(NULL
)
1321 void wxGDIPlusContext::Init()
1328 m_fontScaleRatio
= 1.0;
1331 void wxGDIPlusContext::SetDefaults()
1333 m_context
->SetTextRenderingHint(TextRenderingHintSystemDefault
);
1334 m_context
->SetPixelOffsetMode(PixelOffsetModeHalf
);
1335 m_context
->SetSmoothingMode(SmoothingModeHighQuality
);
1336 m_state1
= m_context
->Save();
1337 m_state2
= m_context
->Save();
1340 wxGDIPlusContext::~wxGDIPlusContext()
1344 m_context
->Restore( m_state2
);
1345 m_context
->Restore( m_state1
);
1351 void wxGDIPlusContext::Clip( const wxRegion
®ion
)
1353 Region
rgn((HRGN
)region
.GetHRGN());
1354 m_context
->SetClip(&rgn
,CombineModeIntersect
);
1357 void wxGDIPlusContext::Clip( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1359 m_context
->SetClip(RectF(x
,y
,w
,h
),CombineModeIntersect
);
1362 void wxGDIPlusContext::ResetClip()
1364 m_context
->ResetClip();
1367 void wxGDIPlusContext::DrawRectangle( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1369 if (m_composition
== wxCOMPOSITION_DEST
)
1372 wxGDIPlusOffsetHelper
helper( m_context
, ShouldOffset() );
1373 Brush
*brush
= m_brush
.IsNull() ? NULL
: ((wxGDIPlusBrushData
*)m_brush
.GetRefData())->GetGDIPlusBrush();
1374 Pen
*pen
= m_pen
.IsNull() ? NULL
: ((wxGDIPlusPenData
*)m_pen
.GetGraphicsData())->GetGDIPlusPen();
1378 // the offset is used to fill only the inside of the rectangle and not paint underneath
1379 // its border which may influence a transparent Pen
1382 offset
= pen
->GetWidth();
1383 m_context
->FillRectangle( brush
, (REAL
)x
+ offset
/2, (REAL
)y
+ offset
/2, (REAL
)w
- offset
, (REAL
)h
- offset
);
1388 m_context
->DrawRectangle( pen
, (REAL
)x
, (REAL
)y
, (REAL
)w
, (REAL
)h
);
1392 void wxGDIPlusContext::StrokeLines( size_t n
, const wxPoint2DDouble
*points
)
1394 if (m_composition
== wxCOMPOSITION_DEST
)
1397 if ( !m_pen
.IsNull() )
1399 wxGDIPlusOffsetHelper
helper( m_context
, ShouldOffset() );
1400 Point
*cpoints
= new Point
[n
];
1401 for (size_t i
= 0; i
< n
; i
++)
1403 cpoints
[i
].X
= (int)(points
[i
].m_x
);
1404 cpoints
[i
].Y
= (int)(points
[i
].m_y
);
1406 } // for (size_t i = 0; i < n; i++)
1407 m_context
->DrawLines( ((wxGDIPlusPenData
*)m_pen
.GetGraphicsData())->GetGDIPlusPen() , cpoints
, n
) ;
1412 void wxGDIPlusContext::DrawLines( size_t n
, const wxPoint2DDouble
*points
, wxPolygonFillMode
WXUNUSED(fillStyle
) )
1414 if (m_composition
== wxCOMPOSITION_DEST
)
1417 wxGDIPlusOffsetHelper
helper( m_context
, ShouldOffset() );
1418 Point
*cpoints
= new Point
[n
];
1419 for (size_t i
= 0; i
< n
; i
++)
1421 cpoints
[i
].X
= (int)(points
[i
].m_x
);
1422 cpoints
[i
].Y
= (int)(points
[i
].m_y
);
1424 } // for (int i = 0; i < n; i++)
1425 if ( !m_brush
.IsNull() )
1426 m_context
->FillPolygon( ((wxGDIPlusBrushData
*)m_brush
.GetRefData())->GetGDIPlusBrush() , cpoints
, n
) ;
1427 if ( !m_pen
.IsNull() )
1428 m_context
->DrawLines( ((wxGDIPlusPenData
*)m_pen
.GetGraphicsData())->GetGDIPlusPen() , cpoints
, n
) ;
1432 void wxGDIPlusContext::StrokePath( const wxGraphicsPath
& path
)
1434 if (m_composition
== wxCOMPOSITION_DEST
)
1437 if ( !m_pen
.IsNull() )
1439 wxGDIPlusOffsetHelper
helper( m_context
, ShouldOffset() );
1440 m_context
->DrawPath( ((wxGDIPlusPenData
*)m_pen
.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath
*) path
.GetNativePath() );
1444 void wxGDIPlusContext::FillPath( const wxGraphicsPath
& path
, wxPolygonFillMode fillStyle
)
1446 if (m_composition
== wxCOMPOSITION_DEST
)
1449 if ( !m_brush
.IsNull() )
1451 wxGDIPlusOffsetHelper
helper( m_context
, ShouldOffset() );
1452 ((GraphicsPath
*) path
.GetNativePath())->SetFillMode( fillStyle
== wxODDEVEN_RULE
? FillModeAlternate
: FillModeWinding
);
1453 m_context
->FillPath( ((wxGDIPlusBrushData
*)m_brush
.GetRefData())->GetGDIPlusBrush() ,
1454 (GraphicsPath
*) path
.GetNativePath());
1458 bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias
)
1460 if (m_antialias
== antialias
)
1463 m_antialias
= antialias
;
1465 SmoothingMode antialiasMode
;
1468 case wxANTIALIAS_DEFAULT
:
1469 antialiasMode
= SmoothingModeHighQuality
;
1471 case wxANTIALIAS_NONE
:
1472 antialiasMode
= SmoothingModeNone
;
1477 m_context
->SetSmoothingMode(antialiasMode
);
1481 bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op
)
1483 if ( m_composition
== op
)
1488 if (m_composition
== wxCOMPOSITION_DEST
)
1491 CompositingMode cop
;
1494 case wxCOMPOSITION_SOURCE
:
1495 cop
= CompositingModeSourceCopy
;
1497 case wxCOMPOSITION_OVER
:
1498 cop
= CompositingModeSourceOver
;
1504 m_context
->SetCompositingMode(cop
);
1508 void wxGDIPlusContext::BeginLayer(wxDouble
/* opacity */)
1513 void wxGDIPlusContext::EndLayer()
1518 void wxGDIPlusContext::Rotate( wxDouble angle
)
1520 m_context
->RotateTransform( RadToDeg(angle
) );
1523 void wxGDIPlusContext::Translate( wxDouble dx
, wxDouble dy
)
1525 m_context
->TranslateTransform( dx
, dy
);
1528 void wxGDIPlusContext::Scale( wxDouble xScale
, wxDouble yScale
)
1530 m_context
->ScaleTransform(xScale
,yScale
);
1533 void wxGDIPlusContext::PushState()
1535 GraphicsState state
= m_context
->Save();
1536 m_stateStack
.push(state
);
1539 void wxGDIPlusContext::PopState()
1541 GraphicsState state
= m_stateStack
.top();
1543 m_context
->Restore(state
);
1546 void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1548 if (m_composition
== wxCOMPOSITION_DEST
)
1551 Bitmap
* image
= static_cast<wxGDIPlusBitmapData
*>(bmp
.GetRefData())->GetGDIPlusBitmap();
1554 if( image
->GetWidth() != (UINT
) w
|| image
->GetHeight() != (UINT
) h
)
1556 Rect
drawRect((REAL
) x
, (REAL
)y
, (REAL
)w
, (REAL
)h
);
1557 m_context
->SetPixelOffsetMode( PixelOffsetModeNone
);
1558 m_context
->DrawImage(image
, drawRect
, 0 , 0 , image
->GetWidth()-1, image
->GetHeight()-1, UnitPixel
) ;
1559 m_context
->SetPixelOffsetMode( PixelOffsetModeHalf
);
1562 m_context
->DrawImage(image
,(REAL
) x
,(REAL
) y
,(REAL
) w
,(REAL
) h
) ;
1566 void wxGDIPlusContext::DrawBitmap( const wxBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1568 wxGraphicsBitmap bitmap
= GetRenderer()->CreateBitmap(bmp
);
1569 DrawBitmap(bitmap
, x
, y
, w
, h
);
1572 void wxGDIPlusContext::DrawIcon( const wxIcon
&icon
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1574 if (m_composition
== wxCOMPOSITION_DEST
)
1577 // the built-in conversion fails when there is alpha in the HICON (eg XP style icons), we can only
1578 // find out by looking at the bitmap data whether there really was alpha in it
1579 HICON hIcon
= (HICON
)icon
.GetHICON();
1581 // IconInfo creates the bitmaps for color and mask, we must dispose of them after use
1582 if (!GetIconInfo(hIcon
,&iconInfo
))
1585 Bitmap
interim(iconInfo
.hbmColor
,NULL
);
1587 Bitmap
* image
= NULL
;
1589 // if it's not 32 bit, it doesn't have an alpha channel, note that since the conversion doesn't
1590 // work correctly, asking IsAlphaPixelFormat at this point fails as well
1591 if( GetPixelFormatSize(interim
.GetPixelFormat())!= 32 )
1593 image
= Bitmap::FromHICON(hIcon
);
1597 size_t width
= interim
.GetWidth();
1598 size_t height
= interim
.GetHeight();
1599 Rect
bounds(0,0,width
,height
);
1602 interim
.LockBits(&bounds
, ImageLockModeRead
,
1603 interim
.GetPixelFormat(),&data
);
1605 bool hasAlpha
= false;
1606 for ( size_t y
= 0 ; y
< height
&& !hasAlpha
; ++y
)
1608 for( size_t x
= 0 ; x
< width
&& !hasAlpha
; ++x
)
1610 ARGB
*dest
= (ARGB
*)((BYTE
*)data
.Scan0
+ data
.Stride
*y
+ x
*4);
1611 if ( ( *dest
& Color::AlphaMask
) != 0 )
1618 image
= new Bitmap(data
.Width
, data
.Height
, data
.Stride
,
1619 PixelFormat32bppARGB
, (BYTE
*) data
.Scan0
);
1623 image
= Bitmap::FromHICON(hIcon
);
1626 interim
.UnlockBits(&data
);
1629 m_context
->DrawImage(image
,(REAL
) x
,(REAL
) y
,(REAL
) w
,(REAL
) h
) ;
1632 DeleteObject(iconInfo
.hbmColor
);
1633 DeleteObject(iconInfo
.hbmMask
);
1636 wxGraphicsFont
wxGDIPlusContext::CreateFont( const wxFont
&font
,
1637 const wxColour
&col
) const
1639 wxGDIPlusRenderer
* renderer
=
1640 static_cast<wxGDIPlusRenderer
*>(GetRenderer());
1641 return renderer
->CreateGDIPlusFont(this, font
, col
);
1644 void wxGDIPlusContext::DoDrawFilledText(const wxString
& str
,
1645 wxDouble x
, wxDouble y
,
1646 const wxGraphicsBrush
& brush
)
1648 if (m_composition
== wxCOMPOSITION_DEST
)
1651 wxCHECK_RET( !m_font
.IsNull(),
1652 wxT("wxGDIPlusContext::DrawText - no valid font set") );
1657 wxGDIPlusFontData
* const
1658 fontData
= (wxGDIPlusFontData
*)m_font
.GetRefData();
1659 wxGDIPlusBrushData
* const
1660 brushData
= (wxGDIPlusBrushData
*)brush
.GetRefData();
1662 m_context
->DrawString
1664 str
.wc_str(*wxConvUI
), // string to draw, always Unicode
1665 -1, // length: string is NUL-terminated
1666 fontData
->GetGDIPlusFont(),
1668 StringFormat::GenericTypographic(),
1669 brushData
? brushData
->GetGDIPlusBrush()
1670 : fontData
->GetGDIPlusBrush()
1674 void wxGDIPlusContext::GetTextExtent( const wxString
&str
, wxDouble
*width
, wxDouble
*height
,
1675 wxDouble
*descent
, wxDouble
*externalLeading
) const
1677 wxCHECK_RET( !m_font
.IsNull(), wxT("wxGDIPlusContext::GetTextExtent - no valid font set") );
1679 wxWCharBuffer s
= str
.wc_str( *wxConvUI
);
1680 FontFamily ffamily
;
1681 Font
* f
= ((wxGDIPlusFontData
*)m_font
.GetRefData())->GetGDIPlusFont();
1683 f
->GetFamily(&ffamily
) ;
1685 REAL factorY
= m_fontScaleRatio
;
1687 REAL rDescent
= ffamily
.GetCellDescent(FontStyleRegular
) *
1688 f
->GetSize() / ffamily
.GetEmHeight(FontStyleRegular
);
1689 REAL rAscent
= ffamily
.GetCellAscent(FontStyleRegular
) *
1690 f
->GetSize() / ffamily
.GetEmHeight(FontStyleRegular
);
1691 REAL rHeight
= ffamily
.GetLineSpacing(FontStyleRegular
) *
1692 f
->GetSize() / ffamily
.GetEmHeight(FontStyleRegular
);
1695 *height
= rHeight
* factorY
;
1697 *descent
= rDescent
* factorY
;
1698 if ( externalLeading
)
1699 *externalLeading
= (rHeight
- rAscent
- rDescent
) * factorY
;
1700 // measuring empty strings is not guaranteed, so do it by hand
1708 RectF
layoutRect(0,0, 100000.0f
, 100000.0f
);
1709 StringFormat
strFormat( StringFormat::GenericTypographic() );
1710 strFormat
.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces
| strFormat
.GetFormatFlags() );
1713 m_context
->MeasureString((const wchar_t *) s
, wcslen(s
) , f
, layoutRect
, &strFormat
, &bounds
) ;
1715 *width
= bounds
.Width
;
1717 *height
= bounds
.Height
;
1721 void wxGDIPlusContext::GetPartialTextExtents(const wxString
& text
, wxArrayDouble
& widths
) const
1724 widths
.Add(0, text
.length());
1726 wxCHECK_RET( !m_font
.IsNull(), wxT("wxGDIPlusContext::GetPartialTextExtents - no valid font set") );
1731 Font
* f
= ((wxGDIPlusFontData
*)m_font
.GetRefData())->GetGDIPlusFont();
1732 wxWCharBuffer ws
= text
.wc_str( *wxConvUI
);
1733 size_t len
= wcslen( ws
) ;
1734 wxASSERT_MSG(text
.length() == len
, wxT("GetPartialTextExtents not yet implemented for multichar situations"));
1736 RectF
layoutRect(0,0, 100000.0f
, 100000.0f
);
1737 StringFormat
strFormat( StringFormat::GenericTypographic() );
1739 size_t startPosition
= 0;
1740 size_t remainder
= len
;
1741 const size_t maxSpan
= 32;
1742 CharacterRange
* ranges
= new CharacterRange
[maxSpan
] ;
1743 Region
* regions
= new Region
[maxSpan
];
1745 while( remainder
> 0 )
1747 size_t span
= wxMin( maxSpan
, remainder
);
1749 for( size_t i
= 0 ; i
< span
; ++i
)
1751 ranges
[i
].First
= 0 ;
1752 ranges
[i
].Length
= startPosition
+i
+1 ;
1754 strFormat
.SetMeasurableCharacterRanges(span
,ranges
);
1755 strFormat
.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces
| strFormat
.GetFormatFlags() );
1756 m_context
->MeasureCharacterRanges(ws
, -1 , f
,layoutRect
, &strFormat
,span
,regions
) ;
1759 for ( size_t i
= 0 ; i
< span
; ++i
)
1761 regions
[i
].GetBounds(&bbox
,m_context
);
1762 widths
[startPosition
+i
] = bbox
.Width
;
1765 startPosition
+= span
;
1772 bool wxGDIPlusContext::ShouldOffset() const
1775 if ( !m_pen
.IsNull() )
1777 penwidth
= (int)((wxGDIPlusPenData
*)m_pen
.GetRefData())->GetWidth();
1778 if ( penwidth
== 0 )
1781 return ( penwidth
% 2 ) == 1;
1784 void* wxGDIPlusContext::GetNativeContext()
1789 // concatenates this transform with the current transform of this context
1790 void wxGDIPlusContext::ConcatTransform( const wxGraphicsMatrix
& matrix
)
1792 m_context
->MultiplyTransform((Matrix
*) matrix
.GetNativeMatrix());
1795 // sets the transform of this context
1796 void wxGDIPlusContext::SetTransform( const wxGraphicsMatrix
& matrix
)
1798 m_context
->SetTransform((Matrix
*) matrix
.GetNativeMatrix());
1801 // gets the matrix of this context
1802 wxGraphicsMatrix
wxGDIPlusContext::GetTransform() const
1804 wxGraphicsMatrix matrix
= CreateMatrix();
1805 m_context
->GetTransform((Matrix
*) matrix
.GetNativeMatrix());
1809 void wxGDIPlusContext::GetSize( wxDouble
* width
, wxDouble
*height
)
1815 //-----------------------------------------------------------------------------
1816 // wxGDIPlusPrintingContext implementation
1817 //-----------------------------------------------------------------------------
1819 wxGDIPlusPrintingContext::wxGDIPlusPrintingContext( wxGraphicsRenderer
* renderer
,
1821 : wxGDIPlusContext(renderer
, dc
)
1823 Graphics
* context
= GetGraphics();
1825 //m_context->SetPageUnit(UnitDocument);
1827 // Setup page scale, based on DPI ratio.
1828 // Antecedent should be 100dpi when the default page unit
1829 // (UnitDisplay) is used. Page unit UnitDocument would require 300dpi
1830 // instead. Note that calling SetPageScale() does not have effect on
1831 // non-printing DCs (that is, any other than wxPrinterDC or
1832 // wxEnhMetaFileDC).
1833 REAL dpiRatio
= 100.0 / context
->GetDpiY();
1834 context
->SetPageScale(dpiRatio
);
1836 // We use this modifier when measuring fonts. It is needed because the
1837 // page scale is modified above.
1838 m_fontScaleRatio
= context
->GetDpiY() / 72.0;
1841 //-----------------------------------------------------------------------------
1842 // wxGDIPlusRenderer implementation
1843 //-----------------------------------------------------------------------------
1845 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRenderer
,wxGraphicsRenderer
)
1847 static wxGDIPlusRenderer gs_GDIPlusRenderer
;
1849 wxGraphicsRenderer
* wxGraphicsRenderer::GetDefaultRenderer()
1851 return &gs_GDIPlusRenderer
;
1854 bool wxGDIPlusRenderer::EnsureIsLoaded()
1856 // load gdiplus.dll if not yet loaded, but don't bother doing it again
1857 // if we already tried and failed (we don't want to spend lot of time
1858 // returning NULL from wxGraphicsContext::Create(), which may be called
1859 // relatively frequently):
1860 if ( m_loaded
== -1 )
1865 return m_loaded
== 1;
1868 // call EnsureIsLoaded() and return returnOnFail value if it fails
1869 #define ENSURE_LOADED_OR_RETURN(returnOnFail) \
1870 if ( !EnsureIsLoaded() ) \
1871 return (returnOnFail)
1874 void wxGDIPlusRenderer::Load()
1876 GdiplusStartupInput input
;
1877 GdiplusStartupOutput output
;
1878 if ( GdiplusStartup(&m_gditoken
,&input
,&output
) == Gdiplus::Ok
)
1880 wxLogTrace("gdiplus", "successfully initialized GDI+");
1885 wxLogTrace("gdiplus", "failed to initialize GDI+, missing gdiplus.dll?");
1890 void wxGDIPlusRenderer::Unload()
1894 GdiplusShutdown(m_gditoken
);
1897 m_loaded
= -1; // next Load() will try again
1900 wxGraphicsContext
* wxGDIPlusRenderer::CreateContext( const wxWindowDC
& dc
)
1902 ENSURE_LOADED_OR_RETURN(NULL
);
1903 return new wxGDIPlusContext(this, dc
);
1906 #if wxUSE_PRINTING_ARCHITECTURE
1907 wxGraphicsContext
* wxGDIPlusRenderer::CreateContext( const wxPrinterDC
& dc
)
1909 ENSURE_LOADED_OR_RETURN(NULL
);
1910 wxGDIPlusContext
* context
= new wxGDIPlusPrintingContext(this, dc
);
1915 #if wxUSE_ENH_METAFILE
1916 wxGraphicsContext
* wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC
& dc
)
1918 ENSURE_LOADED_OR_RETURN(NULL
);
1919 wxGDIPlusContext
* context
= new wxGDIPlusPrintingContext(this, dc
);
1924 wxGraphicsContext
* wxGDIPlusRenderer::CreateContext( const wxMemoryDC
& dc
)
1926 ENSURE_LOADED_OR_RETURN(NULL
);
1927 return new wxGDIPlusContext(this, dc
);
1930 wxGraphicsContext
* wxGDIPlusRenderer::CreateMeasuringContext()
1932 ENSURE_LOADED_OR_RETURN(NULL
);
1933 return new wxGDIPlusMeasuringContext(this);
1936 wxGraphicsContext
* wxGDIPlusRenderer::CreateContextFromNativeContext( void * context
)
1938 ENSURE_LOADED_OR_RETURN(NULL
);
1939 return new wxGDIPlusContext(this,(Graphics
*) context
);
1943 wxGraphicsContext
* wxGDIPlusRenderer::CreateContextFromNativeWindow( void * window
)
1945 ENSURE_LOADED_OR_RETURN(NULL
);
1946 return new wxGDIPlusContext(this,(HWND
) window
);
1949 wxGraphicsContext
* wxGDIPlusRenderer::CreateContext( wxWindow
* window
)
1951 ENSURE_LOADED_OR_RETURN(NULL
);
1952 return new wxGDIPlusContext(this, (HWND
) window
->GetHWND() );
1957 wxGraphicsPath
wxGDIPlusRenderer::CreatePath()
1959 ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath
);
1961 m
.SetRefData( new wxGDIPlusPathData(this));
1968 wxGraphicsMatrix
wxGDIPlusRenderer::CreateMatrix( wxDouble a
, wxDouble b
, wxDouble c
, wxDouble d
,
1969 wxDouble tx
, wxDouble ty
)
1972 ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix
);
1974 wxGDIPlusMatrixData
* data
= new wxGDIPlusMatrixData( this );
1975 data
->Set( a
,b
,c
,d
,tx
,ty
) ;
1980 wxGraphicsPen
wxGDIPlusRenderer::CreatePen(const wxPen
& pen
)
1982 ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen
);
1983 if ( !pen
.Ok() || pen
.GetStyle() == wxTRANSPARENT
)
1984 return wxNullGraphicsPen
;
1988 p
.SetRefData(new wxGDIPlusPenData( this, pen
));
1993 wxGraphicsBrush
wxGDIPlusRenderer::CreateBrush(const wxBrush
& brush
)
1995 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
1996 if ( !brush
.Ok() || brush
.GetStyle() == wxTRANSPARENT
)
1997 return wxNullGraphicsBrush
;
2001 p
.SetRefData(new wxGDIPlusBrushData( this, brush
));
2007 wxGDIPlusRenderer::CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
2008 wxDouble x2
, wxDouble y2
,
2009 const wxGraphicsGradientStops
& stops
)
2011 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
2013 wxGDIPlusBrushData
* d
= new wxGDIPlusBrushData( this );
2014 d
->CreateLinearGradientBrush(x1
, y1
, x2
, y2
, stops
);
2020 wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
2021 wxDouble xc
, wxDouble yc
,
2023 const wxGraphicsGradientStops
& stops
)
2025 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
2027 wxGDIPlusBrushData
* d
= new wxGDIPlusBrushData( this );
2028 d
->CreateRadialGradientBrush(xo
,yo
,xc
,yc
,radius
,stops
);
2034 wxGDIPlusRenderer::CreateGDIPlusFont( const wxGDIPlusContext
* gc
,
2036 const wxColour
&col
)
2038 ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont
);
2042 p
.SetRefData(new wxGDIPlusFontData( this, gc
, font
, col
));
2046 return wxNullGraphicsFont
;
2049 wxGraphicsBitmap
wxGDIPlusRenderer::CreateBitmap( const wxBitmap
&bitmap
)
2051 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2055 p
.SetRefData(new wxGDIPlusBitmapData( this , bitmap
));
2059 return wxNullGraphicsBitmap
;
2062 wxGraphicsBitmap
wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap
)
2064 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2065 if ( bitmap
!= NULL
)
2068 p
.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap
*) bitmap
));
2072 return wxNullGraphicsBitmap
;
2075 wxGraphicsBitmap
wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap
&bitmap
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
2077 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2078 Bitmap
* image
= static_cast<wxGDIPlusBitmapData
*>(bitmap
.GetRefData())->GetGDIPlusBitmap();
2082 p
.SetRefData(new wxGDIPlusBitmapData( this , image
->Clone( (REAL
) x
, (REAL
) y
, (REAL
) w
, (REAL
) h
, PixelFormat32bppPARGB
) ));
2086 return wxNullGraphicsBitmap
;
2089 // Shutdown GDI+ at app exit, before possible dll unload
2090 class wxGDIPlusRendererModule
: public wxModule
2093 virtual bool OnInit() { return true; }
2094 virtual void OnExit() { gs_GDIPlusRenderer
.Unload(); }
2097 DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule
)
2100 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule
, wxModule
)
2102 // ----------------------------------------------------------------------------
2103 // wxMSW-specific parts of wxGCDC
2104 // ----------------------------------------------------------------------------
2106 WXHDC
wxGCDC::AcquireHDC()
2108 wxGraphicsContext
* const gc
= GetGraphicsContext();
2112 Graphics
* const g
= static_cast<Graphics
*>(gc
->GetNativeContext());
2113 return g
? g
->GetHDC() : NULL
;
2116 void wxGCDC::ReleaseHDC(WXHDC hdc
)
2121 wxGraphicsContext
* const gc
= GetGraphicsContext();
2122 wxCHECK_RET( gc
, "can't release HDC because there is no wxGraphicsContext" );
2124 Graphics
* const g
= static_cast<Graphics
*>(gc
->GetNativeContext());
2125 wxCHECK_RET( g
, "can't release HDC because there is no Graphics" );
2127 g
->ReleaseHDC((HDC
)hdc
);
2130 #endif // wxUSE_GRAPHICS_CONTEXT