X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6fea499ca8a3e99bfb7c16ce167146f1fa754367..0a470e5ea537237f0562c3b2182ee293dec36eb3:/src/msw/graphics.cpp?ds=sidebyside diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp index 7e9d5da60e..77fa96e6b2 100644 --- a/src/msw/graphics.cpp +++ b/src/msw/graphics.cpp @@ -1,46 +1,60 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: src/mac/carbon/dccg.cpp +// Name: src/msw/graphics.cpp // Purpose: wxGCDC class // Author: Stefan Csomor // Modified by: -// Created: 01/02/97 +// Created: 2006-09-30 // RCS-ID: $Id$ -// Copyright: (c) Stefan Csomor +// Copyright: (c) 2006 Stefan Csomor // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #include "wx/wxprec.h" +#ifdef __BORLANDC__ + #pragma hdrstop +#endif + #include "wx/dc.h" -// For compilers that support precompilation, includes "wx.h". -#include "wx/wxprec.h" +#if wxUSE_GRAPHICS_CONTEXT -#ifdef __BORLANDC__ -#pragma hdrstop +#ifndef WX_PRECOMP + #include "wx/msw/wrapcdlg.h" + #include "wx/image.h" + #include "wx/window.h" + #include "wx/utils.h" + #include "wx/dialog.h" + #include "wx/app.h" + #include "wx/bitmap.h" + #include "wx/log.h" + #include "wx/icon.h" + #include "wx/module.h" + // include all dc types that are used as a param + #include "wx/dc.h" + #include "wx/dcclient.h" + #include "wx/dcmemory.h" + #include "wx/dcprint.h" #endif -#ifndef WX_PRECOMP -#include "wx/msw/wrapcdlg.h" -#include "wx/image.h" -#include "wx/window.h" -#include "wx/dc.h" -#include "wx/utils.h" -#include "wx/dialog.h" -#include "wx/app.h" -#include "wx/bitmap.h" -#include "wx/dcmemory.h" -#include "wx/log.h" -#include "wx/icon.h" -#include "wx/dcprint.h" -#include "wx/module.h" +#include "wx/stack.h" + +#include "wx/private/graphics.h" +#include "wx/msw/wrapgdip.h" +#include "wx/msw/dc.h" +#if wxUSE_ENH_METAFILE + #include "wx/msw/enhmeta.h" #endif +#include "wx/dcgraph.h" -#include "wx/graphics.h" +#include "wx/msw/private.h" // needs to be before #include -#include +#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__) +#include +#endif -using namespace std; +namespace +{ //----------------------------------------------------------------------------- // constants @@ -52,11 +66,19 @@ const double RAD2DEG = 180.0 / M_PI; // Local functions //----------------------------------------------------------------------------- -static inline double dmin(double a, double b) { return a < b ? a : b; } -static inline double dmax(double a, double b) { return a > b ? a : b; } +inline double dmin(double a, double b) { return a < b ? a : b; } +inline double dmax(double a, double b) { return a > b ? a : b; } + +inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } +inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; } + +// translate a wxColour to a Color +inline Color wxColourToColor(const wxColour& col) +{ + return Color(col.Alpha(), col.Red(), col.Green(), col.Blue()); +} -static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } -static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; } +} // anonymous namespace //----------------------------------------------------------------------------- // device context implementation @@ -74,75 +96,15 @@ static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; } // wxGraphicsPath implementation //----------------------------------------------------------------------------- -#include "wx/msw/private.h" // needs to be before #include - -#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__) -#include -#endif - -// TODO remove this dependency (gdiplus needs the macros) - -#ifndef max -#define max(a,b) (((a) > (b)) ? (a) : (b)) -#endif - -#ifndef min -#define min(a,b) (((a) < (b)) ? (a) : (b)) -#endif - -#include "gdiplus.h" -using namespace Gdiplus; - -class GDILoader -{ -public : - GDILoader() - { - m_loaded = false; - m_gditoken = NULL; - } - - ~GDILoader() - { - if (m_loaded) - { - Unload(); - } - } - void EnsureIsLoaded() - { - if (!m_loaded) - { - Load(); - } - } - void Load() - { - GdiplusStartupInput input; - GdiplusStartupOutput output; - GdiplusStartup(&m_gditoken,&input,&output); - m_loaded = true; - } - void Unload() - { - if ( m_gditoken ) - GdiplusShutdown(m_gditoken); - } -private : - bool m_loaded; - DWORD m_gditoken; - -}; - -static GDILoader gGDILoader; +class wxGDIPlusContext; -class WXDLLEXPORT wxGDIPlusPath : public wxGraphicsPath +class wxGDIPlusPathData : public wxGraphicsPathData { - DECLARE_NO_COPY_CLASS(wxGDIPlusPath) public : - wxGDIPlusPath(); - ~wxGDIPlusPath(); + wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path = NULL); + ~wxGDIPlusPathData(); + virtual wxGraphicsObjectRefData *Clone() const; // // These are the path primitives from which everything else can be constructed @@ -151,28 +113,31 @@ public : // begins a new subpath at (x,y) virtual void MoveToPoint( wxDouble x, wxDouble y ); - // adds a straight line from the current point to (x,y) + // adds a straight line from the current point to (x,y) virtual void AddLineToPoint( wxDouble x, wxDouble y ); // adds a cubic Bezier curve from the current point, using two control points and an end point virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ); - // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle + // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) ; // gets the last point of the current path, (0,0) if not yet set - virtual void GetCurrentPoint( wxDouble& x, wxDouble&y) ; + virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const; + + // adds another path + virtual void AddPath( const wxGraphicsPathData* path ); // closes the current sub-path virtual void CloseSubpath(); // - // These are convenience functions which - if not available natively will be assembled + // These are convenience functions which - if not available natively will be assembled // using the primitives from above // - // appends a rectangle as a new closed subpath + // appends a rectangle as a new closed subpath virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ; /* @@ -183,303 +148,457 @@ public : virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ; */ - GraphicsPath* GetPath() const; + // returns the native path + virtual void * GetNativePath() const { return m_path; } + + // give the native path returned by GetNativePath() back (there might be some deallocations necessary) + virtual void UnGetNativePath(void * WXUNUSED(path)) const {} + + // transforms each point of this path by the matrix + virtual void Transform( const wxGraphicsMatrixData* matrix ) ; + + // gets the bounding box enclosing all points (possibly including control points) + virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const; + + virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const; + private : GraphicsPath* m_path; }; -class WXDLLEXPORT wxGDIPlusContext : public wxGraphicsContext +class wxGDIPlusMatrixData : public wxGraphicsMatrixData { - DECLARE_NO_COPY_CLASS(wxGDIPlusContext) +public : + wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix = NULL) ; + virtual ~wxGDIPlusMatrixData() ; -public: - wxGDIPlusContext( WXHDC hdc ); - wxGDIPlusContext(); - virtual ~wxGDIPlusContext(); + virtual wxGraphicsObjectRefData* Clone() const ; - virtual void Clip( const wxRegion ®ion ); - virtual void StrokePath( const wxGraphicsPath *p ); - virtual void FillPath( const wxGraphicsPath *p , int fillStyle = wxWINDING_RULE ); + // concatenates the matrix + virtual void Concat( const wxGraphicsMatrixData *t ); - virtual wxGraphicsPath* CreatePath(); - virtual void SetPen( const wxPen &pen ); - virtual void SetBrush( const wxBrush &brush ); - virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) ; - virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor); + // sets the matrix to the respective values + virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, + wxDouble tx=0.0, wxDouble ty=0.0); - virtual void Translate( wxDouble dx , wxDouble dy ); - virtual void Scale( wxDouble xScale , wxDouble yScale ); - virtual void Rotate( wxDouble angle ); + // gets the component valuess of the matrix + virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL, + wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const; - virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); - virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); - virtual void PushState(); - virtual void PopState(); + // makes this the inverse matrix + virtual void Invert(); - virtual void SetFont( const wxFont &font ); - virtual void SetTextColor( const wxColour &col ); - virtual void DrawText( const wxString &str, wxDouble x, wxDouble y); - virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, - wxDouble *descent, wxDouble *externalLeading ) const; - virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; + // returns true if the elements of the transformation matrix are equal ? + virtual bool IsEqual( const wxGraphicsMatrixData* t) const ; + + // return true if this is the identity matrix + virtual bool IsIdentity() const; + + // + // transformation + // + + // add the translation to this matrix + virtual void Translate( wxDouble dx , wxDouble dy ); + + // add the scale to this matrix + virtual void Scale( wxDouble xScale , wxDouble yScale ); + + // add the rotation to this matrix (radians) + virtual void Rotate( wxDouble angle ); + + // + // apply the transforms + // + + // applies that matrix to the point + virtual void TransformPoint( wxDouble *x, wxDouble *y ) const; + + // applies the matrix except for translations + virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const; + // returns the native representation + virtual void * GetNativeMatrix() const; private: - Graphics* m_context; - vector m_stateStack; - GraphicsState m_state1; - GraphicsState m_state2; + Matrix* m_matrix ; +} ; + +class wxGDIPlusPenData : public wxGraphicsObjectRefData +{ +public: + wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen ); + ~wxGDIPlusPenData(); + + void Init(); + + virtual wxDouble GetWidth() { return m_width; } + virtual Pen* GetGDIPlusPen() { return m_pen; } +protected : Pen* m_pen; - bool m_penTransparent; Image* m_penImage; Brush* m_penBrush; - + + wxDouble m_width; +}; + +class wxGDIPlusBrushData : public wxGraphicsObjectRefData +{ +public: + wxGDIPlusBrushData( wxGraphicsRenderer* renderer ); + wxGDIPlusBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush ); + ~wxGDIPlusBrushData (); + + void CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); + void CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops); + + virtual Brush* GetGDIPlusBrush() { return m_brush; } + +protected: + virtual void Init(); + +private: + // common part of Create{Linear,Radial}GradientBrush() + template + void SetGradientStops(T *brush, const wxGraphicsGradientStops& stops); + Brush* m_brush; - bool m_brushTransparent; Image* m_brushImage; GraphicsPath* m_brushPath; +}; + +class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsObjectRefData +{ +public: + wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ); + wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, const wxBitmap &bmp ); + ~wxGDIPlusBitmapData (); + + virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; } + +#if wxUSE_IMAGE + wxImage ConvertToImage() const; +#endif // wxUSE_IMAGE + +private : + Bitmap* m_bitmap; + Bitmap* m_helper; +}; + +class wxGDIPlusFontData : public wxGraphicsObjectRefData +{ +public: + wxGDIPlusFontData( wxGraphicsRenderer* renderer, + const wxGDIPlusContext* gc, + const wxFont &font, + const wxColour& col ); + ~wxGDIPlusFontData(); + + virtual Brush* GetGDIPlusBrush() { return m_textBrush; } + virtual Font* GetGDIPlusFont() { return m_font; } + +private : + // Common part of all ctors, flags here is a combination of values of + // FontStyle GDI+ enum. + void Init(const wxString& name, + REAL size, + int style, + const wxColour& col, + Unit fontUnit = UnitPixel); Brush* m_textBrush; Font* m_font; - // wxPen m_pen; - // wxBrush m_brush; }; -wxGDIPlusPath::wxGDIPlusPath() +class wxGDIPlusContext : public wxGraphicsContext { - m_path = new GraphicsPath(); -} +public: + wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc ); + wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height ); + wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd ); + wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr); + wxGDIPlusContext(wxGraphicsRenderer* renderer); -wxGDIPlusPath::~wxGDIPlusPath() -{ - delete m_path; -} + virtual ~wxGDIPlusContext(); -GraphicsPath* wxGDIPlusPath::GetPath() const -{ - return m_path; -} + virtual void Clip( const wxRegion ®ion ); + // clips drawings to the rect + virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); -// -// The Primitives -// + // resets the clipping to original extent + virtual void ResetClip(); -void wxGDIPlusPath::MoveToPoint( wxDouble x , wxDouble y ) -{ - m_path->StartFigure(); - m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y); -} + virtual void * GetNativeContext(); -void wxGDIPlusPath::AddLineToPoint( wxDouble x , wxDouble y ) -{ - m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y); -} + virtual void StrokePath( const wxGraphicsPath& p ); + virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE ); -void wxGDIPlusPath::CloseSubpath() -{ - m_path->CloseFigure(); -} + virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); -void wxGDIPlusPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) -{ - PointF c1(cx1,cy1); - PointF c2(cx2,cy2); - PointF end(x,y); - PointF start; - m_path->GetLastPoint(&start); - m_path->AddBezier(start,c1,c2,end); -} + // stroke lines connecting each of the points + virtual void StrokeLines( size_t n, const wxPoint2DDouble *points); -// gets the last point of the current path, (0,0) if not yet set -void wxGDIPlusPath::GetCurrentPoint( wxDouble& x, wxDouble&y) -{ - PointF start; - m_path->GetLastPoint(&start); - x = start.X ; - y = start.Y ; -} + // draws a polygon + virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE ); -void wxGDIPlusPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) -{ - double sweepAngle = endAngle - startAngle ; - if( abs(sweepAngle) >= 2*M_PI) - { - sweepAngle = 2 * M_PI; - } - else - { - if ( clockwise ) - { - if( sweepAngle < 0 ) - sweepAngle += 2 * M_PI; - } - else - { - if( sweepAngle > 0 ) - sweepAngle -= 2 * M_PI; + virtual bool SetAntialiasMode(wxAntialiasMode antialias); - } - } - m_path->AddArc((REAL) (x-r),(REAL) (y-r),(REAL) (2*r),(REAL) (2*r),RadToDeg(startAngle),RadToDeg(sweepAngle)); -} + virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation); + + virtual bool SetCompositionMode(wxCompositionMode op); -void wxGDIPlusPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) -{ - m_path->AddRectangle(RectF(x,y,w,h)); -} + virtual void BeginLayer(wxDouble opacity); -// -// -// -/* -// closes the current subpath -void wxGDIPlusPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) -{ -// CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r); -} + virtual void EndLayer(); -*/ + virtual void Translate( wxDouble dx , wxDouble dy ); + virtual void Scale( wxDouble xScale , wxDouble yScale ); + virtual void Rotate( wxDouble angle ); -//----------------------------------------------------------------------------- -// wxGDIPlusContext implementation -//----------------------------------------------------------------------------- + // concatenates this transform with the current transform of this context + virtual void ConcatTransform( const wxGraphicsMatrix& matrix ); -wxGDIPlusContext::wxGDIPlusContext( WXHDC hdc ) -{ - gGDILoader.EnsureIsLoaded(); - m_context = new Graphics( (HDC) hdc); - m_state1 = m_context->Save(); - m_state2 = m_context->Save(); + // sets the transform of this context + virtual void SetTransform( const wxGraphicsMatrix& matrix ); - // set defaults + // gets the matrix of this context + virtual wxGraphicsMatrix GetTransform() const; - m_penTransparent = false; - m_pen = new Pen((ARGB)Color::Black); - m_penImage = NULL; - m_penBrush = NULL; + virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); + virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); + virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); + virtual void PushState(); + virtual void PopState(); - m_brushTransparent = false; - m_brush = new SolidBrush((ARGB)Color::White); - m_brushImage = NULL; - m_brushPath = NULL; - m_textBrush = new SolidBrush((ARGB)Color::Black); - m_font = new Font( L"Arial" , 9 , FontStyleRegular ); -} + // sets the font of this context + virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const; -wxGDIPlusContext::~wxGDIPlusContext() -{ - if ( m_context ) - { - m_context->Restore( m_state2 ); - m_context->Restore( m_state1 ); - delete m_context; - delete m_pen; - delete m_penImage; - delete m_penBrush; - delete m_brush; - delete m_brushImage; - delete m_brushPath; - delete m_textBrush; - delete m_font; - } -} + virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, + wxDouble *descent, wxDouble *externalLeading ) const; + virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; + virtual bool ShouldOffset() const; + virtual void GetSize( wxDouble* width, wxDouble *height ); + Graphics* GetGraphics() const { return m_context; } -void wxGDIPlusContext::Clip( const wxRegion & WXUNUSED(region) ) -{ -// ClipCGContextToRegion ( m_context, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ); -} +protected: -void wxGDIPlusContext::StrokePath( const wxGraphicsPath *p ) -{ - if ( m_penTransparent ) - return; + wxDouble m_fontScaleRatio; - const wxGDIPlusPath* path = dynamic_cast< const wxGDIPlusPath*>( p ); - m_context->DrawPath( m_pen , path->GetPath() ); -} + // Used from ctors (including those in the derived classes) and takes + // ownership of the graphics pointer that must be non-NULL. + void Init(Graphics* graphics, int width, int height); + +private: + virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y) + { DoDrawFilledText(str, x, y, wxNullGraphicsBrush); } + virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y, + const wxGraphicsBrush& backgroundBrush); + + Graphics* m_context; + wxStack m_stateStack; + GraphicsState m_state1; + GraphicsState m_state2; + + wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext); +}; + +#if wxUSE_IMAGE -void wxGDIPlusContext::FillPath( const wxGraphicsPath *p , int fillStyle ) +class wxGDIPlusImageContext : public wxGDIPlusContext { - if ( !m_brushTransparent ) +public: + wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) : + wxGDIPlusContext(renderer), + m_image(image), + m_bitmap(renderer, image) { - const wxGDIPlusPath* path = dynamic_cast< const wxGDIPlusPath*>( p ); - path->GetPath()->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding); - m_context->FillPath( m_brush , path->GetPath() ); + Init + ( + new Graphics(m_bitmap.GetGDIPlusBitmap()), + image.GetWidth(), + image.GetHeight() + ); } -} -wxGraphicsPath* wxGDIPlusContext::CreatePath() -{ - return new wxGDIPlusPath(); -} + virtual ~wxGDIPlusImageContext() + { + m_image = m_bitmap.ConvertToImage(); + } -void wxGDIPlusContext::Rotate( wxDouble angle ) -{ - m_context->RotateTransform( angle ); -} +private: + wxImage& m_image; + wxGDIPlusBitmapData m_bitmap; -void wxGDIPlusContext::Translate( wxDouble dx , wxDouble dy ) -{ - m_context->TranslateTransform( dx , dy ); -} + wxDECLARE_NO_COPY_CLASS(wxGDIPlusImageContext); +}; -void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale ) +#endif // wxUSE_IMAGE + +class wxGDIPlusMeasuringContext : public wxGDIPlusContext { - PointF penWidth( m_pen->GetWidth(), 0); - Matrix matrix ; - if ( !m_penTransparent ) +public: + wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 ) { - m_context->GetTransform(&matrix); - matrix.TransformVectors(&penWidth); } - m_context->ScaleTransform(xScale,yScale); - if ( !m_penTransparent ) + + virtual ~wxGDIPlusMeasuringContext() { - m_context->GetTransform(&matrix); - matrix.Invert(); - matrix.TransformVectors(&penWidth) ; - m_pen->SetWidth( sqrt( penWidth.X*penWidth.X + penWidth.Y*penWidth.Y)); + ReleaseDC( NULL, m_hdc ); } -} -void wxGDIPlusContext::PushState() -{ - GraphicsState state = m_context->Save(); - m_stateStack.push_back(state); -} +private: + HDC m_hdc ; +} ; -void wxGDIPlusContext::PopState() +class wxGDIPlusPrintingContext : public wxGDIPlusContext { - GraphicsState state = m_stateStack.back(); - m_stateStack.pop_back(); - m_context->Restore(state); -} +public: + wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer, const wxDC& dc ); + virtual ~wxGDIPlusPrintingContext() { } +protected: +}; -void wxGDIPlusContext::SetTextColor( const wxColour &col ) -{ - delete m_textBrush; - m_textBrush = new SolidBrush( Color( col.Alpha() , col.Red() , - col.Green() , col.Blue() )); -} +//----------------------------------------------------------------------------- +// wxGDIPlusRenderer declaration +//----------------------------------------------------------------------------- -void wxGDIPlusContext::SetPen( const wxPen &pen ) +class wxGDIPlusRenderer : public wxGraphicsRenderer { - m_penTransparent = pen.GetStyle() == wxTRANSPARENT; - if ( m_penTransparent ) - return; - - m_pen->SetColor( Color( pen.GetColour().Alpha() , pen.GetColour().Red() , - pen.GetColour().Green() , pen.GetColour().Blue() ) ); - - // TODO: * m_dc->m_scaleX - double penWidth = pen.GetWidth(); - if (penWidth <= 0.0) - penWidth = 0.1; +public : + wxGDIPlusRenderer() + { + m_loaded = -1; + m_gditoken = 0; + } + + virtual ~wxGDIPlusRenderer() + { + if ( m_loaded == 1 ) + { + Unload(); + } + } + + // Context + + virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc); + + virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc); + +#if wxUSE_PRINTING_ARCHITECTURE + virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc); +#endif + +#if wxUSE_ENH_METAFILE + virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc); +#endif + + virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ); + + virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ); + + virtual wxGraphicsContext * CreateContext( wxWindow* window ); + +#if wxUSE_IMAGE + virtual wxGraphicsContext * CreateContextFromImage(wxImage& image); +#endif // wxUSE_IMAGE + + virtual wxGraphicsContext * CreateMeasuringContext(); + + // Path + + virtual wxGraphicsPath CreatePath(); + + // Matrix + + virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, + wxDouble tx=0.0, wxDouble ty=0.0); + + + virtual wxGraphicsPen CreatePen(const wxPen& pen) ; + + virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ; + + virtual wxGraphicsBrush + CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); + + virtual wxGraphicsBrush + CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops); + + // create a native bitmap representation + virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ); +#if wxUSE_IMAGE + virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image); +#endif // wxUSE_IMAGE + + // stub: should not be called directly + virtual wxGraphicsFont CreateFont( const wxFont& WXUNUSED(font), + const wxColour& WXUNUSED(col) ) + { wxFAIL; return wxNullGraphicsFont; } + + // this is used to really create the font + wxGraphicsFont CreateGDIPlusFont( const wxGDIPlusContext* gc, + const wxFont &font, + const wxColour &col ); + + // create a graphics bitmap from a native bitmap + virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ); + + // create a subimage from a native image representation + virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); + +protected : + bool EnsureIsLoaded(); + void Load(); + void Unload(); + friend class wxGDIPlusRendererModule; + +private : + int m_loaded; + ULONG_PTR m_gditoken; + + DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusRenderer) +} ; + +//----------------------------------------------------------------------------- +// wxGDIPlusPen implementation +//----------------------------------------------------------------------------- + +wxGDIPlusPenData::~wxGDIPlusPenData() +{ + delete m_pen; + delete m_penImage; + delete m_penBrush; +} + +void wxGDIPlusPenData::Init() +{ + m_pen = NULL ; + m_penImage = NULL; + m_penBrush = NULL; +} + +wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) +: wxGraphicsObjectRefData(renderer) +{ + Init(); + m_width = pen.GetWidth(); + if (m_width <= 0.0) + m_width = 0.1; + + m_pen = new Pen(wxColourToColor(pen.GetColour()), m_width ); - m_pen->SetWidth(penWidth); - LineCap cap; switch ( pen.GetCap() ) { @@ -520,7 +639,7 @@ void wxGDIPlusContext::SetPen( const wxPen &pen ) join = LineJoinMiter; break; } - + m_pen->SetLineJoin(join); m_pen->SetDashStyle(DashStyleSolid); @@ -528,25 +647,25 @@ void wxGDIPlusContext::SetPen( const wxPen &pen ) DashStyle dashStyle = DashStyleSolid; switch ( pen.GetStyle() ) { - case wxSOLID : + case wxPENSTYLE_SOLID : break; - case wxDOT : + case wxPENSTYLE_DOT : dashStyle = DashStyleDot; break; - case wxLONG_DASH : + case wxPENSTYLE_LONG_DASH : dashStyle = DashStyleDash; // TODO verify break; - case wxSHORT_DASH : + case wxPENSTYLE_SHORT_DASH : dashStyle = DashStyleDash; break; - case wxDOT_DASH : + case wxPENSTYLE_DOT_DASH : dashStyle = DashStyleDashDot; break; - case wxUSER_DASH : + case wxPENSTYLE_USER_DASH : { dashStyle = DashStyleCustom; wxDash *dashes; @@ -563,14 +682,18 @@ void wxGDIPlusContext::SetPen( const wxPen &pen ) } } break; - case wxSTIPPLE : + case wxPENSTYLE_STIPPLE : { wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) + if ( bmp && bmp->IsOk() ) { - wxDELETE( m_penImage ); - wxDELETE( m_penBrush ); - m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); + m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(), +#if wxUSE_PALETTE + (HPALETTE)bmp->GetPalette()->GetHPALETTE() +#else + NULL +#endif + ); m_penBrush = new TextureBrush(m_penImage); m_pen->SetBrush( m_penBrush ); } @@ -578,254 +701,1573 @@ void wxGDIPlusContext::SetPen( const wxPen &pen ) } break; default : - if ( pen.GetStyle() >= wxFIRST_HATCH && pen.GetStyle() <= wxLAST_HATCH ) + if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH && + pen.GetStyle() <= wxPENSTYLE_LAST_HATCH ) { - wxDELETE( m_penBrush ); - HatchStyle style = HatchStyleHorizontal; + HatchStyle style; switch( pen.GetStyle() ) { - case wxBDIAGONAL_HATCH : + case wxPENSTYLE_BDIAGONAL_HATCH : style = HatchStyleBackwardDiagonal; break ; - case wxCROSSDIAG_HATCH : + case wxPENSTYLE_CROSSDIAG_HATCH : style = HatchStyleDiagonalCross; break ; - case wxFDIAGONAL_HATCH : + case wxPENSTYLE_FDIAGONAL_HATCH : style = HatchStyleForwardDiagonal; break ; - case wxCROSS_HATCH : + case wxPENSTYLE_CROSS_HATCH : style = HatchStyleCross; break ; - case wxHORIZONTAL_HATCH : + case wxPENSTYLE_HORIZONTAL_HATCH : style = HatchStyleHorizontal; break ; - case wxVERTICAL_HATCH : + case wxPENSTYLE_VERTICAL_HATCH : style = HatchStyleVertical; break ; - + default: + style = HatchStyleHorizontal; } - m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() , - pen.GetColour().Green() , pen.GetColour().Blue() ), Color::Transparent ); + m_penBrush = new HatchBrush + ( + style, + wxColourToColor(pen.GetColour()), + Color::Transparent + ); m_pen->SetBrush( m_penBrush ); } break; - } + } if ( dashStyle != DashStyleSolid ) m_pen->SetDashStyle(dashStyle); } -void wxGDIPlusContext::SetBrush( const wxBrush &brush ) -{ -// m_brush = brush; - if ( m_context == NULL ) - return; - - m_brushTransparent = brush.GetStyle() == wxTRANSPARENT; - - if ( m_brushTransparent ) - return; +//----------------------------------------------------------------------------- +// wxGDIPlusBrush implementation +//----------------------------------------------------------------------------- - wxDELETE(m_brush); +wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer ) +: wxGraphicsObjectRefData(renderer) +{ + Init(); +} +wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer , const wxBrush &brush ) +: wxGraphicsObjectRefData(renderer) +{ + Init(); if ( brush.GetStyle() == wxSOLID) { - m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ) ); + m_brush = new SolidBrush(wxColourToColor( brush.GetColour())); } else if ( brush.IsHatch() ) { - HatchStyle style = HatchStyleHorizontal; + HatchStyle style; switch( brush.GetStyle() ) { - case wxBDIAGONAL_HATCH : + case wxBRUSHSTYLE_BDIAGONAL_HATCH : style = HatchStyleBackwardDiagonal; break ; - case wxCROSSDIAG_HATCH : + case wxBRUSHSTYLE_CROSSDIAG_HATCH : style = HatchStyleDiagonalCross; break ; - case wxFDIAGONAL_HATCH : + case wxBRUSHSTYLE_FDIAGONAL_HATCH : style = HatchStyleForwardDiagonal; break ; - case wxCROSS_HATCH : + case wxBRUSHSTYLE_CROSS_HATCH : style = HatchStyleCross; break ; - case wxHORIZONTAL_HATCH : + case wxBRUSHSTYLE_HORIZONTAL_HATCH : style = HatchStyleHorizontal; break ; - case wxVERTICAL_HATCH : + case wxBRUSHSTYLE_VERTICAL_HATCH : style = HatchStyleVertical; break ; - + default: + style = HatchStyleHorizontal; } - m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ), Color::Transparent ); + m_brush = new HatchBrush + ( + style, + wxColourToColor(brush.GetColour()), + Color::Transparent + ); } - else + else { wxBitmap* bmp = brush.GetStipple(); - if ( bmp && bmp->Ok() ) + if ( bmp && bmp->IsOk() ) { wxDELETE( m_brushImage ); - m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); + m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(), +#if wxUSE_PALETTE + (HPALETTE)bmp->GetPalette()->GetHPALETTE() +#else + NULL +#endif + ); m_brush = new TextureBrush(m_brushImage); } } } -void wxGDIPlusContext::SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) +wxGDIPlusBrushData::~wxGDIPlusBrushData() +{ + delete m_brush; + delete m_brushImage; + delete m_brushPath; +}; + +void wxGDIPlusBrushData::Init() +{ + m_brush = NULL; + m_brushImage= NULL; + m_brushPath= NULL; +} + +template +void +wxGDIPlusBrushData::SetGradientStops(T *brush, + const wxGraphicsGradientStops& stops) { - m_brushTransparent = false ; + const unsigned numStops = stops.GetCount(); + if ( numStops <= 2 ) + { + // initial and final colours are set during the brush creation, nothing + // more to do + return; + } + + wxVector colors(numStops); + wxVector positions(numStops); - wxDELETE(m_brush); + for ( unsigned i = 0; i < numStops; i++ ) + { + wxGraphicsGradientStop stop = stops.Item(i); + + colors[i] = wxColourToColor(stop.GetColour()); + positions[i] = stop.GetPosition(); + } - m_brush = new LinearGradientBrush( PointF( x1,y1) , PointF( x2,y2), - Color( c1.Alpha(), c1.Red(),c1.Green() , c1.Blue() ), - Color( c2.Alpha(), c2.Red(),c2.Green() , c2.Blue() )); + brush->SetInterpolationColors(&colors[0], &positions[0], numStops); } -void wxGDIPlusContext::SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) +void +wxGDIPlusBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { - m_brushTransparent = false ; + LinearGradientBrush * const + brush = new LinearGradientBrush(PointF(x1, y1) , PointF(x2, y2), + wxColourToColor(stops.GetStartColour()), + wxColourToColor(stops.GetEndColour())); + m_brush = brush; - wxDELETE(m_brush); - wxDELETE(m_brushPath); + SetGradientStops(brush, stops); +} - // Create a path that consists of a single circle. +void +wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) +{ m_brushPath = new GraphicsPath(); - m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius), (REAL)(2*radius), (REAL)(2*radius)); + m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius), + (REAL)(2*radius), (REAL)(2*radius)); - PathGradientBrush *b = new PathGradientBrush(m_brushPath); - m_brush = b; - b->SetCenterPoint( PointF(xo,yo)); - b->SetCenterColor(Color( oColor.Alpha(), oColor.Red(),oColor.Green() , oColor.Blue() )); + PathGradientBrush * const brush = new PathGradientBrush(m_brushPath); + m_brush = brush; + brush->SetCenterPoint(PointF(xo, yo)); + brush->SetCenterColor(wxColourToColor(stops.GetStartColour())); - Color colors[] = {Color( cColor.Alpha(), cColor.Red(),cColor.Green() , cColor.Blue() )}; + const Color col(wxColourToColor(stops.GetEndColour())); int count = 1; - b->SetSurroundColors(colors, &count); + brush->SetSurroundColors(&col, &count); + + SetGradientStops(brush, stops); } -void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +//----------------------------------------------------------------------------- +// wxGDIPlusFont implementation +//----------------------------------------------------------------------------- + +void +wxGDIPlusFontData::Init(const wxString& name, + REAL size, + int style, + const wxColour& col, + Unit fontUnit) { - Bitmap* image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()); - m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; - delete image ; + // This scaling is needed when we use unit other than the + // default UnitPoint. It works for both display and printing. + size *= 100.0f / 72.0f; + + m_font = new Font(name, size, style, fontUnit); + + m_textBrush = new SolidBrush(wxColourToColor(col)); } -void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer, + const wxGDIPlusContext* gc, + const wxFont &font, + const wxColour& col ) + : wxGraphicsObjectRefData( renderer ) { - Bitmap* image = Bitmap::FromHICON((HICON)icon.GetHICON()); - m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; - delete image ; -} + int style = FontStyleRegular; + if ( font.GetStyle() == wxFONTSTYLE_ITALIC ) + style |= FontStyleItalic; + if ( font.GetUnderlined() ) + style |= FontStyleUnderline; + if ( font.GetWeight() == wxFONTWEIGHT_BOLD ) + style |= FontStyleBold; + Graphics* context = gc->GetGraphics(); -void wxGDIPlusContext::DrawText( const wxString &str, wxDouble x, wxDouble y ) -{ - if ( str.IsEmpty()) - return ; + Unit fontUnit = context->GetPageUnit(); + // if fontUnit is UnitDisplay, then specify UnitPixel, otherwise + // you'll get a "InvalidParameter" from GDI+ + if ( fontUnit == UnitDisplay ) + fontUnit = UnitPixel; - wxWCharBuffer s = str.wc_str( *wxConvUI ); - m_context->DrawString( s , -1 , m_font , PointF( x , y ) , m_textBrush ); - // TODO m_backgroundMode == wxSOLID + // NB: font unit should match context's unit. We can use UnitPixel, + // as that is what the print context should use. + Init(font.GetFaceName(), font.GetPointSize(), style, col, fontUnit); } -void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, - wxDouble *descent, wxDouble *externalLeading ) const +wxGDIPlusFontData::~wxGDIPlusFontData() { - wxWCharBuffer s = str.wc_str( *wxConvUI ); - FontFamily ffamily ; - - m_font->GetFamily(&ffamily) ; + delete m_textBrush; + delete m_font; +} - REAL factorY = m_context->GetDpiY() / 72.0 ; +// the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the +// premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied +// bytes as parameter, since there is no real copying of the data going in, only references are stored +// m_helper has to be kept alive as well - REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); +//----------------------------------------------------------------------------- +// wxGDIPlusBitmapData implementation +//----------------------------------------------------------------------------- - if ( height ) - *height = rHeight * factorY + 0.5 ; - if ( descent ) - *descent = rDescent * factorY + 0.5 ; - if ( externalLeading ) - *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ; - // measuring empty strings is not guaranteed, so do it by hand - if ( str.IsEmpty()) +wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ) : + wxGraphicsObjectRefData( renderer ), m_bitmap( bitmap ) +{ + m_helper = NULL; +} + +wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, + const wxBitmap &bmp) : wxGraphicsObjectRefData( renderer ) +{ + m_bitmap = NULL; + m_helper = NULL; + + Bitmap* image = NULL; + if ( bmp.GetMask() ) { - if ( width ) - *width = 0 ; + Bitmap interim((HBITMAP)bmp.GetHBITMAP(), +#if wxUSE_PALETTE + (HPALETTE)bmp.GetPalette()->GetHPALETTE() +#else + NULL +#endif + ); + + size_t width = interim.GetWidth(); + size_t height = interim.GetHeight(); + Rect bounds(0,0,width,height); + + image = new Bitmap(width,height,PixelFormat32bppPARGB) ; + + Bitmap interimMask((HBITMAP)bmp.GetMask()->GetMaskBitmap(),NULL); + wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed); + + BitmapData dataMask ; + interimMask.LockBits(&bounds,ImageLockModeRead, + interimMask.GetPixelFormat(),&dataMask); + + + BitmapData imageData ; + image->LockBits(&bounds,ImageLockModeWrite, PixelFormat32bppPARGB, &imageData); + + BYTE maskPattern = 0 ; + BYTE maskByte = 0; + size_t maskIndex ; + + for ( size_t y = 0 ; y < height ; ++y) + { + maskIndex = 0 ; + for( size_t x = 0 ; x < width; ++x) + { + if ( x % 8 == 0) + { + maskPattern = 0x80; + maskByte = *((BYTE*)dataMask.Scan0 + dataMask.Stride*y + maskIndex); + maskIndex++; + } + else + maskPattern = maskPattern >> 1; + + ARGB *dest = (ARGB*)((BYTE*)imageData.Scan0 + imageData.Stride*y + x*4); + if ( (maskByte & maskPattern) == 0 ) + *dest = 0x00000000; + else + { + Color c ; + interim.GetPixel(x,y,&c) ; + *dest = (c.GetValue() | Color::AlphaMask); + } + } + } + + image->UnlockBits(&imageData); + + interimMask.UnlockBits(&dataMask); + interim.UnlockBits(&dataMask); } else { - // MeasureString does return a rectangle that is way too large, so it is - // not usable here - RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; - CharacterRange strRange(0,wcslen(s)); - strFormat.SetMeasurableCharacterRanges(1,&strRange); - Region region ; - m_context->MeasureCharacterRanges(s, -1 , m_font,layoutRect, &strFormat,1,®ion) ; - RectF bbox ; - region.GetBounds(&bbox,m_context); - if ( width ) - *width = bbox.GetRight()-bbox.GetLeft()+0.5; + image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(), +#if wxUSE_PALETTE + (HPALETTE)bmp.GetPalette()->GetHPALETTE() +#else + NULL +#endif + ); + if ( bmp.HasAlpha() && GetPixelFormatSize(image->GetPixelFormat()) == 32 ) + { + size_t width = image->GetWidth(); + size_t height = image->GetHeight(); + Rect bounds(0,0,width,height); + static BitmapData data ; + + m_helper = image ; + image = NULL ; + m_helper->LockBits(&bounds, ImageLockModeRead, + m_helper->GetPixelFormat(),&data); + + image = new Bitmap(data.Width, data.Height, data.Stride, + PixelFormat32bppPARGB , (BYTE*) data.Scan0); + + m_helper->UnlockBits(&data); + } } + if ( image ) + m_bitmap = image; } -void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const +#if wxUSE_IMAGE + +wxImage wxGDIPlusBitmapData::ConvertToImage() const { - widths.Empty(); - widths.Add(0, text.length()); + // We could use Bitmap::LockBits() and convert to wxImage directly but + // passing by wxBitmap is easier. It would be nice to measure performance + // of the two methods but for this the second one would need to be written + // first... + HBITMAP hbmp; + if ( m_bitmap->GetHBITMAP(Color(0xffffffff), &hbmp) != Gdiplus::Ok ) + return wxNullImage; + + wxBitmap bmp; + bmp.SetWidth(m_bitmap->GetWidth()); + bmp.SetHeight(m_bitmap->GetHeight()); + bmp.SetHBITMAP(hbmp); + bmp.SetDepth(IsAlphaPixelFormat(m_bitmap->GetPixelFormat()) ? 32 : 24); + return bmp.ConvertToImage(); +} - if (text.empty()) - return; +#endif // wxUSE_IMAGE - wxWCharBuffer ws = text.wc_str( *wxConvUI ); - size_t len = wcslen( ws ) ; - wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations")); +wxGDIPlusBitmapData::~wxGDIPlusBitmapData() +{ + delete m_bitmap; + delete m_helper; +} - RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; +// ---------------------------------------------------------------------------- +// wxGraphicsBitmap implementation +// ---------------------------------------------------------------------------- - CharacterRange* ranges = new CharacterRange[len] ; - Region* regions = new Region[len]; - for( size_t i = 0 ; i < len ; ++i) - { - ranges[i].First = i ; - ranges[i].Length = 1 ; - } - strFormat.SetMeasurableCharacterRanges(len,ranges); - m_context->MeasureCharacterRanges(ws, -1 , m_font,layoutRect, &strFormat,1,regions) ; +#if wxUSE_IMAGE + +wxImage wxGraphicsBitmap::ConvertToImage() const +{ + const wxGDIPlusBitmapData* const + data = static_cast(GetGraphicsData()); + + return data ? data->ConvertToImage() : wxNullImage; +} + +#endif // wxUSE_IMAGE + +//----------------------------------------------------------------------------- +// wxGDIPlusPath implementation +//----------------------------------------------------------------------------- + +wxGDIPlusPathData::wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path ) : wxGraphicsPathData(renderer) +{ + if ( path ) + m_path = path; + else + m_path = new GraphicsPath(); +} + +wxGDIPlusPathData::~wxGDIPlusPathData() +{ + delete m_path; +} + +wxGraphicsObjectRefData* wxGDIPlusPathData::Clone() const +{ + return new wxGDIPlusPathData( GetRenderer() , m_path->Clone()); +} + +// +// The Primitives +// + +void wxGDIPlusPathData::MoveToPoint( wxDouble x , wxDouble y ) +{ + m_path->StartFigure(); + m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y); +} + +void wxGDIPlusPathData::AddLineToPoint( wxDouble x , wxDouble y ) +{ + m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y); +} + +void wxGDIPlusPathData::CloseSubpath() +{ + m_path->CloseFigure(); +} + +void wxGDIPlusPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) +{ + PointF c1(cx1,cy1); + PointF c2(cx2,cy2); + PointF end(x,y); + PointF start; + m_path->GetLastPoint(&start); + m_path->AddBezier(start,c1,c2,end); +} + +// gets the last point of the current path, (0,0) if not yet set +void wxGDIPlusPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const +{ + PointF start; + m_path->GetLastPoint(&start); + *x = start.X ; + *y = start.Y ; +} - RectF bbox ; - for ( size_t i = 0 ; i < len ; ++i) +void wxGDIPlusPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) +{ + double sweepAngle = endAngle - startAngle ; + if( fabs(sweepAngle) >= 2*M_PI) { - regions[i].GetBounds(&bbox,m_context); - widths[i] = bbox.GetRight()-bbox.GetLeft(); + sweepAngle = 2 * M_PI; } + else + { + if ( clockwise ) + { + if( sweepAngle < 0 ) + sweepAngle += 2 * M_PI; + } + else + { + if( sweepAngle > 0 ) + sweepAngle -= 2 * M_PI; + + } + } + m_path->AddArc((REAL) (x-r),(REAL) (y-r),(REAL) (2*r),(REAL) (2*r),RadToDeg(startAngle),RadToDeg(sweepAngle)); } -void wxGDIPlusContext::SetFont( const wxFont &font ) +void wxGDIPlusPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - wxASSERT( font.Ok()); - delete m_font; - wxWCharBuffer s = font.GetFaceName().wc_str( *wxConvUI ); - int size = font.GetPointSize(); - int style = FontStyleRegular; - if ( font.GetStyle() == wxFONTSTYLE_ITALIC ) - style |= FontStyleItalic; - if ( font.GetUnderlined() ) - style |= FontStyleUnderline; - if ( font.GetWeight() == wxFONTWEIGHT_BOLD ) - style |= FontStyleBold; - m_font = new Font( s , size , style ); + m_path->AddRectangle(RectF(x,y,w,h)); +} + +void wxGDIPlusPathData::AddPath( const wxGraphicsPathData* path ) +{ + m_path->AddPath( (GraphicsPath*) path->GetNativePath(), FALSE); } -wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc) + +// transforms each point of this path by the matrix +void wxGDIPlusPathData::Transform( const wxGraphicsMatrixData* matrix ) { - return new wxGDIPlusContext( (HDC) dc.GetHDC() ); + m_path->Transform( (Matrix*) matrix->GetNativeMatrix() ); } + +// gets the bounding box enclosing all points (possibly including control points) +void wxGDIPlusPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const +{ + RectF bounds; + m_path->GetBounds( &bounds, NULL, NULL) ; + *x = bounds.X; + *y = bounds.Y; + *w = bounds.Width; + *h = bounds.Height; +} + +bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const +{ + m_path->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding); + return m_path->IsVisible( (FLOAT) x,(FLOAT) y) == TRUE ; +} + +//----------------------------------------------------------------------------- +// wxGDIPlusMatrixData implementation +//----------------------------------------------------------------------------- + +wxGDIPlusMatrixData::wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix ) + : wxGraphicsMatrixData(renderer) +{ + if ( matrix ) + m_matrix = matrix ; + else + m_matrix = new Matrix(); +} + +wxGDIPlusMatrixData::~wxGDIPlusMatrixData() +{ + delete m_matrix; +} + +wxGraphicsObjectRefData *wxGDIPlusMatrixData::Clone() const +{ + return new wxGDIPlusMatrixData( GetRenderer(), m_matrix->Clone()); +} + +// concatenates the matrix +void wxGDIPlusMatrixData::Concat( const wxGraphicsMatrixData *t ) +{ + m_matrix->Multiply( (Matrix*) t->GetNativeMatrix()); +} + +// sets the matrix to the respective values +void wxGDIPlusMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) +{ + m_matrix->SetElements(a,b,c,d,tx,ty); +} + +// gets the component valuess of the matrix +void wxGDIPlusMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c, + wxDouble* d, wxDouble* tx, wxDouble* ty) const +{ + REAL elements[6]; + m_matrix->GetElements(elements); + if (a) *a = elements[0]; + if (b) *b = elements[1]; + if (c) *c = elements[2]; + if (d) *d = elements[3]; + if (tx) *tx= elements[4]; + if (ty) *ty= elements[5]; +} + +// makes this the inverse matrix +void wxGDIPlusMatrixData::Invert() +{ + m_matrix->Invert(); +} + +// returns true if the elements of the transformation matrix are equal ? +bool wxGDIPlusMatrixData::IsEqual( const wxGraphicsMatrixData* t) const +{ + return m_matrix->Equals((Matrix*) t->GetNativeMatrix())== TRUE ; +} + +// return true if this is the identity matrix +bool wxGDIPlusMatrixData::IsIdentity() const +{ + return m_matrix->IsIdentity() == TRUE ; +} + +// +// transformation +// + +// add the translation to this matrix +void wxGDIPlusMatrixData::Translate( wxDouble dx , wxDouble dy ) +{ + m_matrix->Translate(dx,dy); +} + +// add the scale to this matrix +void wxGDIPlusMatrixData::Scale( wxDouble xScale , wxDouble yScale ) +{ + m_matrix->Scale(xScale,yScale); +} + +// add the rotation to this matrix (radians) +void wxGDIPlusMatrixData::Rotate( wxDouble angle ) +{ + m_matrix->Rotate( RadToDeg(angle) ); +} + +// +// apply the transforms +// + +// applies that matrix to the point +void wxGDIPlusMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const +{ + PointF pt(*x,*y); + m_matrix->TransformPoints(&pt); + *x = pt.X; + *y = pt.Y; +} + +// applies the matrix except for translations +void wxGDIPlusMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const +{ + PointF pt(*dx,*dy); + m_matrix->TransformVectors(&pt); + *dx = pt.X; + *dy = pt.Y; +} + +// returns the native representation +void * wxGDIPlusMatrixData::GetNativeMatrix() const +{ + return m_matrix; +} + +//----------------------------------------------------------------------------- +// wxGDIPlusContext implementation +//----------------------------------------------------------------------------- + +class wxGDIPlusOffsetHelper +{ +public : + wxGDIPlusOffsetHelper( Graphics* gr , bool offset ) + { + m_gr = gr; + m_offset = offset; + if ( m_offset ) + m_gr->TranslateTransform( 0.5, 0.5 ); + } + ~wxGDIPlusOffsetHelper( ) + { + if ( m_offset ) + m_gr->TranslateTransform( -0.5, -0.5 ); + } +public : + Graphics* m_gr; + bool m_offset; +} ; + +wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height ) + : wxGraphicsContext(renderer) +{ + Init(new Graphics(hdc), width, height); +} + +wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc ) + : wxGraphicsContext(renderer) +{ + wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl ); + HDC hdc = (HDC) msw->GetHDC(); + wxSize sz = dc.GetSize(); + + Init(new Graphics(hdc), sz.x, sz.y); +} + +wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd ) + : wxGraphicsContext(renderer) +{ + RECT rect = wxGetWindowRect(hwnd); + Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top); + m_enableOffset = true; +} + +wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr ) + : wxGraphicsContext(renderer) +{ + Init(gr, 0, 0); +} + +wxGDIPlusContext::wxGDIPlusContext(wxGraphicsRenderer* renderer) + : wxGraphicsContext(renderer) +{ + // Derived class must call Init() later but just set m_context to NULL for + // safety to avoid crashing in our dtor if Init() ends up not being called. + m_context = NULL; +} + +void wxGDIPlusContext::Init(Graphics* graphics, int width, int height) +{ + m_context = graphics; + m_state1 = 0; + m_state2 = 0; + m_width = width; + m_height = height; + m_fontScaleRatio = 1.0; + + m_context->SetTextRenderingHint(TextRenderingHintSystemDefault); + m_context->SetPixelOffsetMode(PixelOffsetModeHalf); + m_context->SetSmoothingMode(SmoothingModeHighQuality); + m_state1 = m_context->Save(); + m_state2 = m_context->Save(); +} + +wxGDIPlusContext::~wxGDIPlusContext() +{ + if ( m_context ) + { + m_context->Restore( m_state2 ); + m_context->Restore( m_state1 ); + delete m_context; + } +} + + +void wxGDIPlusContext::Clip( const wxRegion ®ion ) +{ + Region rgn((HRGN)region.GetHRGN()); + m_context->SetClip(&rgn,CombineModeIntersect); +} + +void wxGDIPlusContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + m_context->SetClip(RectF(x,y,w,h),CombineModeIntersect); +} + +void wxGDIPlusContext::ResetClip() +{ + m_context->ResetClip(); +} + +void wxGDIPlusContext::DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + Brush *brush = m_brush.IsNull() ? NULL : ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush(); + Pen *pen = m_pen.IsNull() ? NULL : ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen(); + + if ( brush ) + { + // the offset is used to fill only the inside of the rectangle and not paint underneath + // its border which may influence a transparent Pen + REAL offset = 0; + if ( pen ) + offset = pen->GetWidth(); + m_context->FillRectangle( brush, (REAL)x + offset/2, (REAL)y + offset/2, (REAL)w - offset, (REAL)h - offset); + } + + if ( pen ) + { + m_context->DrawRectangle( pen, (REAL)x, (REAL)y, (REAL)w, (REAL)h ); + } +} + +void wxGDIPlusContext::StrokeLines( size_t n, const wxPoint2DDouble *points) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + if ( !m_pen.IsNull() ) + { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + Point *cpoints = new Point[n]; + for (size_t i = 0; i < n; i++) + { + cpoints[i].X = (int)(points[i].m_x ); + cpoints[i].Y = (int)(points[i].m_y ); + + } // for (size_t i = 0; i < n; i++) + m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ; + delete[] cpoints; + } +} + +void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode WXUNUSED(fillStyle) ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + Point *cpoints = new Point[n]; + for (size_t i = 0; i < n; i++) + { + cpoints[i].X = (int)(points[i].m_x ); + cpoints[i].Y = (int)(points[i].m_y ); + + } // for (int i = 0; i < n; i++) + if ( !m_brush.IsNull() ) + m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ; + if ( !m_pen.IsNull() ) + m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ; + delete[] cpoints; +} + +void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + if ( !m_pen.IsNull() ) + { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + m_context->DrawPath( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath*) path.GetNativePath() ); + } +} + +void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + if ( !m_brush.IsNull() ) + { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + ((GraphicsPath*) path.GetNativePath())->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding); + m_context->FillPath( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , + (GraphicsPath*) path.GetNativePath()); + } +} + +bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias) +{ + if (m_antialias == antialias) + return true; + + m_antialias = antialias; + + SmoothingMode antialiasMode; + switch (antialias) + { + case wxANTIALIAS_DEFAULT: + antialiasMode = SmoothingModeHighQuality; + break; + case wxANTIALIAS_NONE: + antialiasMode = SmoothingModeNone; + break; + default: + return false; + } + m_context->SetSmoothingMode(antialiasMode); + return true; +} + +bool wxGDIPlusContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation)) +{ + // placeholder + return false; +} + +bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op) +{ + if ( m_composition == op ) + return true; + + m_composition = op; + + if (m_composition == wxCOMPOSITION_DEST) + return true; + + CompositingMode cop; + switch (op) + { + case wxCOMPOSITION_SOURCE: + cop = CompositingModeSourceCopy; + break; + case wxCOMPOSITION_OVER: + cop = CompositingModeSourceOver; + break; + default: + return false; + } + + m_context->SetCompositingMode(cop); + return true; +} + +void wxGDIPlusContext::BeginLayer(wxDouble /* opacity */) +{ + // TODO +} + +void wxGDIPlusContext::EndLayer() +{ + // TODO +} + +void wxGDIPlusContext::Rotate( wxDouble angle ) +{ + m_context->RotateTransform( RadToDeg(angle) ); +} + +void wxGDIPlusContext::Translate( wxDouble dx , wxDouble dy ) +{ + m_context->TranslateTransform( dx , dy ); +} + +void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale ) +{ + m_context->ScaleTransform(xScale,yScale); +} + +void wxGDIPlusContext::PushState() +{ + GraphicsState state = m_context->Save(); + m_stateStack.push(state); +} + +void wxGDIPlusContext::PopState() +{ + wxCHECK_RET( !m_stateStack.empty(), wxT("No state to pop") ); + + GraphicsState state = m_stateStack.top(); + m_stateStack.pop(); + m_context->Restore(state); +} + +void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + Bitmap* image = static_cast(bmp.GetRefData())->GetGDIPlusBitmap(); + if ( image ) + { + if( image->GetWidth() != (UINT) w || image->GetHeight() != (UINT) h ) + { + Rect drawRect((REAL) x, (REAL)y, (REAL)w, (REAL)h); + m_context->SetPixelOffsetMode( PixelOffsetModeNone ); + m_context->DrawImage(image, drawRect, 0 , 0 , image->GetWidth(), image->GetHeight(), UnitPixel ) ; + m_context->SetPixelOffsetMode( PixelOffsetModeHalf ); + } + else + m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; + } +} + +void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp); + DrawBitmap(bitmap, x, y, w, h); +} + +void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + // the built-in conversion fails when there is alpha in the HICON (eg XP style icons), we can only + // find out by looking at the bitmap data whether there really was alpha in it + HICON hIcon = (HICON)icon.GetHICON(); + ICONINFO iconInfo ; + // IconInfo creates the bitmaps for color and mask, we must dispose of them after use + if (!GetIconInfo(hIcon,&iconInfo)) + return; + + Bitmap interim(iconInfo.hbmColor,NULL); + + Bitmap* image = NULL ; + + // if it's not 32 bit, it doesn't have an alpha channel, note that since the conversion doesn't + // work correctly, asking IsAlphaPixelFormat at this point fails as well + if( GetPixelFormatSize(interim.GetPixelFormat())!= 32 ) + { + image = Bitmap::FromHICON(hIcon); + } + else + { + size_t width = interim.GetWidth(); + size_t height = interim.GetHeight(); + Rect bounds(0,0,width,height); + BitmapData data ; + + interim.LockBits(&bounds, ImageLockModeRead, + interim.GetPixelFormat(),&data); + + bool hasAlpha = false; + for ( size_t y = 0 ; y < height && !hasAlpha ; ++y) + { + for( size_t x = 0 ; x < width && !hasAlpha; ++x) + { + ARGB *dest = (ARGB*)((BYTE*)data.Scan0 + data.Stride*y + x*4); + if ( ( *dest & Color::AlphaMask ) != 0 ) + hasAlpha = true; + } + } + + if ( hasAlpha ) + { + image = new Bitmap(data.Width, data.Height, data.Stride, + PixelFormat32bppARGB , (BYTE*) data.Scan0); + } + else + { + image = Bitmap::FromHICON(hIcon); + } + + interim.UnlockBits(&data); + } + + m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; + + delete image ; + DeleteObject(iconInfo.hbmColor); + DeleteObject(iconInfo.hbmMask); +} + +wxGraphicsFont wxGDIPlusContext::CreateFont( const wxFont &font, + const wxColour &col ) const +{ + wxGDIPlusRenderer* renderer = + static_cast(GetRenderer()); + return renderer->CreateGDIPlusFont(this, font, col); +} + +void wxGDIPlusContext::DoDrawFilledText(const wxString& str, + wxDouble x, wxDouble y, + const wxGraphicsBrush& brush) +{ + if (m_composition == wxCOMPOSITION_DEST) + return; + + wxCHECK_RET( !m_font.IsNull(), + wxT("wxGDIPlusContext::DrawText - no valid font set") ); + + if ( str.IsEmpty()) + return ; + + wxGDIPlusFontData * const + fontData = (wxGDIPlusFontData *)m_font.GetRefData(); + wxGDIPlusBrushData * const + brushData = (wxGDIPlusBrushData *)brush.GetRefData(); + + m_context->DrawString + ( + str.wc_str(*wxConvUI), // string to draw, always Unicode + -1, // length: string is NUL-terminated + fontData->GetGDIPlusFont(), + PointF(x, y), + StringFormat::GenericTypographic(), + brushData ? brushData->GetGDIPlusBrush() + : fontData->GetGDIPlusBrush() + ); +} + +void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, + wxDouble *descent, wxDouble *externalLeading ) const +{ + wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetTextExtent - no valid font set") ); + + wxWCharBuffer s = str.wc_str( *wxConvUI ); + FontFamily ffamily ; + Font* f = ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont(); + + f->GetFamily(&ffamily) ; + + REAL factorY = m_fontScaleRatio; + + REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) * + f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); + REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) * + f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); + REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) * + f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); + + if ( height ) + *height = rHeight * factorY; + if ( descent ) + *descent = rDescent * factorY; + if ( externalLeading ) + *externalLeading = (rHeight - rAscent - rDescent) * factorY; + // measuring empty strings is not guaranteed, so do it by hand + if ( str.IsEmpty()) + { + if ( width ) + *width = 0 ; + } + else + { + RectF layoutRect(0,0, 100000.0f, 100000.0f); + StringFormat strFormat( StringFormat::GenericTypographic() ); + strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); + + RectF bounds ; + m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ; + if ( width ) + *width = bounds.Width; + if ( height ) + *height = bounds.Height; + } +} + +void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const +{ + widths.Empty(); + widths.Add(0, text.length()); + + wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetPartialTextExtents - no valid font set") ); + + if (text.empty()) + return; + + Font* f = ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont(); + wxWCharBuffer ws = text.wc_str( *wxConvUI ); + size_t len = wcslen( ws ) ; + wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations")); + + RectF layoutRect(0,0, 100000.0f, 100000.0f); + StringFormat strFormat( StringFormat::GenericTypographic() ); + + size_t startPosition = 0; + size_t remainder = len; + const size_t maxSpan = 32; + CharacterRange* ranges = new CharacterRange[maxSpan] ; + Region* regions = new Region[maxSpan]; + + while( remainder > 0 ) + { + size_t span = wxMin( maxSpan, remainder ); + + for( size_t i = 0 ; i < span ; ++i) + { + ranges[i].First = 0 ; + ranges[i].Length = startPosition+i+1 ; + } + strFormat.SetMeasurableCharacterRanges(span,ranges); + strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); + m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,span,regions) ; + + RectF bbox ; + for ( size_t i = 0 ; i < span ; ++i) + { + regions[i].GetBounds(&bbox,m_context); + widths[startPosition+i] = bbox.Width; + } + remainder -= span; + startPosition += span; + } + + delete[] ranges; + delete[] regions; +} + +bool wxGDIPlusContext::ShouldOffset() const +{ + if ( !m_enableOffset ) + return false; + + int penwidth = 0 ; + if ( !m_pen.IsNull() ) + { + penwidth = (int)((wxGDIPlusPenData*)m_pen.GetRefData())->GetWidth(); + if ( penwidth == 0 ) + penwidth = 1; + } + return ( penwidth % 2 ) == 1; +} + +void* wxGDIPlusContext::GetNativeContext() +{ + return m_context; +} + +// concatenates this transform with the current transform of this context +void wxGDIPlusContext::ConcatTransform( const wxGraphicsMatrix& matrix ) +{ + m_context->MultiplyTransform((Matrix*) matrix.GetNativeMatrix()); +} + +// sets the transform of this context +void wxGDIPlusContext::SetTransform( const wxGraphicsMatrix& matrix ) +{ + m_context->SetTransform((Matrix*) matrix.GetNativeMatrix()); +} + +// gets the matrix of this context +wxGraphicsMatrix wxGDIPlusContext::GetTransform() const +{ + wxGraphicsMatrix matrix = CreateMatrix(); + m_context->GetTransform((Matrix*) matrix.GetNativeMatrix()); + return matrix; +} + +void wxGDIPlusContext::GetSize( wxDouble* width, wxDouble *height ) +{ + *width = m_width; + *height = m_height; +} + +//----------------------------------------------------------------------------- +// wxGDIPlusPrintingContext implementation +//----------------------------------------------------------------------------- + +wxGDIPlusPrintingContext::wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer, + const wxDC& dc ) + : wxGDIPlusContext(renderer, dc) +{ + Graphics* context = GetGraphics(); + + //m_context->SetPageUnit(UnitDocument); + + // Setup page scale, based on DPI ratio. + // Antecedent should be 100dpi when the default page unit + // (UnitDisplay) is used. Page unit UnitDocument would require 300dpi + // instead. Note that calling SetPageScale() does not have effect on + // non-printing DCs (that is, any other than wxPrinterDC or + // wxEnhMetaFileDC). + REAL dpiRatio = 100.0 / context->GetDpiY(); + context->SetPageScale(dpiRatio); + + // We use this modifier when measuring fonts. It is needed because the + // page scale is modified above. + m_fontScaleRatio = context->GetDpiY() / 72.0; +} + +//----------------------------------------------------------------------------- +// wxGDIPlusRenderer implementation +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRenderer,wxGraphicsRenderer) + +static wxGDIPlusRenderer gs_GDIPlusRenderer; + +wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer() +{ + return &gs_GDIPlusRenderer; +} + +bool wxGDIPlusRenderer::EnsureIsLoaded() +{ + // load gdiplus.dll if not yet loaded, but don't bother doing it again + // if we already tried and failed (we don't want to spend lot of time + // returning NULL from wxGraphicsContext::Create(), which may be called + // relatively frequently): + if ( m_loaded == -1 ) + { + Load(); + } + + return m_loaded == 1; +} + +// call EnsureIsLoaded() and return returnOnFail value if it fails +#define ENSURE_LOADED_OR_RETURN(returnOnFail) \ + if ( !EnsureIsLoaded() ) \ + return (returnOnFail) + + +void wxGDIPlusRenderer::Load() +{ + GdiplusStartupInput input; + GdiplusStartupOutput output; + if ( GdiplusStartup(&m_gditoken,&input,&output) == Gdiplus::Ok ) + { + wxLogTrace("gdiplus", "successfully initialized GDI+"); + m_loaded = 1; + } + else + { + wxLogTrace("gdiplus", "failed to initialize GDI+, missing gdiplus.dll?"); + m_loaded = 0; + } +} + +void wxGDIPlusRenderer::Unload() +{ + if ( m_gditoken ) + { + GdiplusShutdown(m_gditoken); + m_gditoken = 0; + } + m_loaded = -1; // next Load() will try again +} + +wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusContext(this, dc); + context->EnableOffset(true); + return context; +} + +#if wxUSE_PRINTING_ARCHITECTURE +wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxPrinterDC& dc) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc); + return context; +} +#endif + +#if wxUSE_ENH_METAFILE +wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC& dc) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc); + return context; +} +#endif + +wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusContext(this, dc); + context->EnableOffset(true); + return context; +} + +#if wxUSE_IMAGE +wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromImage(wxImage& image) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusImageContext(this, image); + context->EnableOffset(true); + return context; +} + +#endif // wxUSE_IMAGE + +wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext() +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxGDIPlusMeasuringContext(this); +} + +wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context ) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxGDIPlusContext(this,(Graphics*) context); +} + + +wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeWindow( void * window ) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxGDIPlusContext(this,(HWND) window); +} + +wxGraphicsContext * wxGDIPlusRenderer::CreateContext( wxWindow* window ) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxGDIPlusContext(this, (HWND) window->GetHWND() ); +} + +// Path + +wxGraphicsPath wxGDIPlusRenderer::CreatePath() +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath); + wxGraphicsPath m; + m.SetRefData( new wxGDIPlusPathData(this)); + return m; +} + + +// Matrix + +wxGraphicsMatrix wxGDIPlusRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) + +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix); + wxGraphicsMatrix m; + wxGDIPlusMatrixData* data = new wxGDIPlusMatrixData( this ); + data->Set( a,b,c,d,tx,ty ) ; + m.SetRefData(data); + return m; +} + +wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen); + if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT ) + return wxNullGraphicsPen; + else + { + wxGraphicsPen p; + p.SetRefData(new wxGDIPlusPenData( this, pen )); + return p; + } +} + +wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); + if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT ) + return wxNullGraphicsBrush; + else + { + wxGraphicsBrush p; + p.SetRefData(new wxGDIPlusBrushData( this, brush )); + return p; + } +} + +wxGraphicsBrush +wxGDIPlusRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); + wxGraphicsBrush p; + wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this ); + d->CreateLinearGradientBrush(x1, y1, x2, y2, stops); + p.SetRefData(d); + return p; + } + +wxGraphicsBrush +wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); + wxGraphicsBrush p; + wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this ); + d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,stops); + p.SetRefData(d); + return p; +} + +wxGraphicsFont +wxGDIPlusRenderer::CreateGDIPlusFont( const wxGDIPlusContext* gc, + const wxFont &font, + const wxColour &col ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); + if ( font.IsOk() ) + { + wxGraphicsFont p; + p.SetRefData(new wxGDIPlusFontData( this, gc, font, col )); + return p; + } + else + return wxNullGraphicsFont; +} + +wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( bitmap.IsOk() ) + { + wxGraphicsBitmap p; + p.SetRefData(new wxGDIPlusBitmapData( this , bitmap )); + return p; + } + else + return wxNullGraphicsBitmap; +} + +#if wxUSE_IMAGE + +wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromImage(const wxImage& image) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( image.IsOk() ) + { + // Notice that we rely on conversion from wxImage to wxBitmap here but + // we could probably do it more efficiently by converting from wxImage + // to GDI+ Bitmap directly, i.e. copying wxImage pixels to the buffer + // returned by Bitmap::LockBits(). However this would require writing + // code specific for this task while like this we can reuse existing + // code (see also wxGDIPlusBitmapData::ConvertToImage()). + wxGraphicsBitmap gb; + gb.SetRefData(new wxGDIPlusBitmapData(this, image)); + return gb; + } + else + return wxNullGraphicsBitmap; +} + +#endif // wxUSE_IMAGE + +wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( bitmap != NULL ) + { + wxGraphicsBitmap p; + p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap )); + return p; + } + else + return wxNullGraphicsBitmap; +} + +wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + Bitmap* image = static_cast(bitmap.GetRefData())->GetGDIPlusBitmap(); + if ( image ) + { + wxGraphicsBitmap p; + p.SetRefData(new wxGDIPlusBitmapData( this , image->Clone( (REAL) x , (REAL) y , (REAL) w , (REAL) h , PixelFormat32bppPARGB) )); + return p; + } + else + return wxNullGraphicsBitmap; +} + +// Shutdown GDI+ at app exit, before possible dll unload +class wxGDIPlusRendererModule : public wxModule +{ +public: + virtual bool OnInit() { return true; } + virtual void OnExit() { gs_GDIPlusRenderer.Unload(); } + +private: + DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule) +}; + +IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule) + +// ---------------------------------------------------------------------------- +// wxMSW-specific parts of wxGCDC +// ---------------------------------------------------------------------------- + +WXHDC wxGCDC::AcquireHDC() +{ + wxGraphicsContext * const gc = GetGraphicsContext(); + if ( !gc ) + return NULL; + +#if wxUSE_CAIRO + // we can't get the HDC if it is not a GDI+ context + wxGraphicsRenderer* r1 = gc->GetRenderer(); + wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer(); + if (r1 == r2) + return NULL; +#endif + + Graphics * const g = static_cast(gc->GetNativeContext()); + return g ? g->GetHDC() : NULL; +} + +void wxGCDC::ReleaseHDC(WXHDC hdc) +{ + if ( !hdc ) + return; + + wxGraphicsContext * const gc = GetGraphicsContext(); + wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" ); + +#if wxUSE_CAIRO + // we can't get the HDC if it is not a GDI+ context + wxGraphicsRenderer* r1 = gc->GetRenderer(); + wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer(); + if (r1 == r2) + return; +#endif + + Graphics * const g = static_cast(gc->GetNativeContext()); + wxCHECK_RET( g, "can't release HDC because there is no Graphics" ); + + g->ReleaseHDC((HDC)hdc); +} + +#endif // wxUSE_GRAPHICS_CONTEXT