X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/711a481223e50d08205648cf67b82d0d8b8ed335..6ba718d7aee2f519d9146b90424ccec9e2243479:/src/generic/graphicc.cpp?ds=sidebyside diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp index d2150dfae9..c89d338f51 100644 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -4,7 +4,6 @@ // Author: Stefan Csomor // Modified by: // Created: 2006-10-03 -// RCS-ID: $Id$ // Copyright: (c) 2006 Stefan Csomor // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -21,7 +20,13 @@ #if wxUSE_CAIRO -#include "wx/cairo.h" +// keep cairo.h from defining dllimport as we're defining the symbols inside +// the wx dll in order to load them dynamically. +#define cairo_public + +#include <cairo.h> + +bool wxCairoInit(); #ifndef WX_PRECOMP #include "wx/bitmap.h" @@ -29,6 +34,7 @@ #include "wx/dcclient.h" #include "wx/dcmemory.h" #include "wx/dcprint.h" + #include "wx/window.h" #endif #include "wx/private/graphics.h" @@ -66,16 +72,18 @@ using namespace std; #include <cairo.h> #ifdef __WXMSW__ #include <cairo-win32.h> +// Notice that the order is important: cairo-win32.h includes windows.h which +// pollutes the global name space with macros so include our own header which +// #undefines them after it. +#include "wx/msw/private.h" #endif #ifdef __WXGTK__ #include <gtk/gtk.h> #include "wx/fontutil.h" +#ifndef __WXGTK3__ #include "wx/gtk/dc.h" #endif - -#ifdef __WXMSW__ -#include <cairo-win32.h> #endif #ifdef __WXMAC__ @@ -209,7 +217,44 @@ private: cairo_matrix_t m_matrix ; } ; -class WXDLLIMPEXP_CORE wxCairoPenData : public wxGraphicsObjectRefData +// Common base class for pens and brushes. +class wxCairoPenBrushBaseData : public wxGraphicsObjectRefData +{ +public: + wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer, + const wxColour& col, + bool isTransparent); + virtual ~wxCairoPenBrushBaseData(); + + virtual void Apply( wxGraphicsContext* context ); + +protected: + // Call this to use the given bitmap as stipple. Bitmap must be non-null + // and valid. + void InitStipple(wxBitmap* bmp); + + // Call this to use the given hatch style. Hatch style must be valid. + void InitHatch(wxHatchStyle hatchStyle); + + + double m_red; + double m_green; + double m_blue; + double m_alpha; + + cairo_pattern_t* m_pattern; + class wxCairoBitmapData* m_bmpdata; + +private: + // Called once to allocate m_pattern if needed. + void InitHatchPattern(cairo_t* ctext); + + wxHatchStyle m_hatchStyle; + + wxDECLARE_NO_COPY_CLASS(wxCairoPenBrushBaseData); +}; + +class WXDLLIMPEXP_CORE wxCairoPenData : public wxCairoPenBrushBaseData { public: wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ); @@ -223,11 +268,6 @@ public: private : double m_width; - double m_red; - double m_green; - double m_blue; - double m_alpha; - cairo_line_cap_t m_cap; cairo_line_join_t m_join; @@ -235,19 +275,14 @@ private : const double *m_lengths; double *m_userLengths; - wxPen m_pen; - wxDECLARE_NO_COPY_CLASS(wxCairoPenData); }; -class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData +class WXDLLIMPEXP_CORE wxCairoBrushData : public wxCairoPenBrushBaseData { public: wxCairoBrushData( wxGraphicsRenderer* renderer ); wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush ); - ~wxCairoBrushData (); - - virtual void Apply( wxGraphicsContext* context ); void CreateLinearGradientBrush(wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, @@ -261,30 +296,30 @@ protected: // common part of Create{Linear,Radial}GradientBrush() void AddGradientStops(const wxGraphicsGradientStops& stops); - -private : - double m_red; - double m_green; - double m_blue; - double m_alpha; - - cairo_pattern_t* m_brushPattern; }; class wxCairoFontData : public wxGraphicsObjectRefData { public: wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col ); + wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col); ~wxCairoFontData(); - virtual void Apply( wxGraphicsContext* context ); + virtual bool Apply( wxGraphicsContext* context ); #ifdef __WXGTK__ - const PangoFontDescription* GetFont() const { return m_font; } - bool GetUnderlined() const { return m_underlined; } + const wxFont& GetFont() const { return m_wxfont; } #endif private : + void InitColour(const wxColour& col); + void InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + double m_size; - bool m_underlined; double m_red; double m_green; double m_blue; @@ -292,28 +327,54 @@ private : #ifdef __WXMAC__ cairo_font_face_t *m_font; #elif defined(__WXGTK__) - PangoFontDescription* m_font; -#else + wxFont m_wxfont; +#endif + + // These members are used when the font is created from its face name and + // flags (and not from wxFont) and also even when creating it from wxFont + // on the platforms not covered above. + // + // Notice that we can't use cairo_font_face_t instead of storing those, + // even though it would be simpler and need less #ifdefs, because + // cairo_toy_font_face_create() that we'd need to create it is only + // available in Cairo 1.8 and we require just 1.2 currently. If we do drop + // support for < 1.8 versions in the future it would be definitely better + // to use cairo_toy_font_face_create() instead. wxCharBuffer m_fontName; cairo_font_slant_t m_slant; cairo_font_weight_t m_weight; -#endif -#ifdef __WXMSW__ - wxCairoContext( wxGraphicsRenderer* renderer, HDC context ); -#endif }; -class wxCairoBitmapData : public wxGraphicsObjectRefData +class wxCairoBitmapData : public wxGraphicsBitmapData { public: wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ); +#if wxUSE_IMAGE + wxCairoBitmapData(wxGraphicsRenderer* renderer, const wxImage& image); +#endif // wxUSE_IMAGE wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ); ~wxCairoBitmapData(); virtual cairo_surface_t* GetCairoSurface() { return m_surface; } virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; } + virtual void* GetNativeBitmap() const { return m_surface; } virtual wxSize GetSize() { return wxSize(m_width, m_height); } + +#if wxUSE_IMAGE + wxImage ConvertToImage() const; +#endif // wxUSE_IMAGE + private : + // Allocate m_buffer for the bitmap of the given size in the given format. + // + // Returns the stride used for the buffer. + int InitBuffer(int width, int height, cairo_format_t format); + + // Really create the surface using the buffer (which was supposed to be + // filled since InitBuffer() call). + void InitSurface(cairo_format_t format, int stride); + + cairo_surface_t* m_surface; cairo_pattern_t* m_pattern; int m_width; @@ -328,15 +389,24 @@ public: wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ); wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ); #ifdef __WXGTK__ - wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ); + wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window ); +#endif +#ifdef __WXMSW__ + wxCairoContext( wxGraphicsRenderer* renderer, HDC context ); #endif wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ); wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window); - wxCairoContext(); + + // If this ctor is used, Init() must be called by the derived class later. + wxCairoContext( wxGraphicsRenderer* renderer ); + virtual ~wxCairoContext(); virtual bool ShouldOffset() const { + if ( !m_enableOffset ) + return false; + int penwidth = 0 ; if ( !m_pen.IsNull() ) { @@ -350,6 +420,7 @@ public: virtual void Clip( const wxRegion ®ion ); #ifdef __WXMSW__ cairo_surface_t* m_mswSurface; + WindowHDC m_mswWindowHDC; #endif // clips drawings to the rect @@ -362,6 +433,8 @@ public: virtual bool SetAntialiasMode(wxAntialiasMode antialias); + virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation); + virtual bool SetCompositionMode(wxCompositionMode op); virtual void BeginLayer(wxDouble opacity); @@ -397,9 +470,9 @@ public: protected: virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y ); -private: void Init(cairo_t *context); +private: cairo_t* m_context; wxVector<float> m_layerOpacities; @@ -407,6 +480,168 @@ private: wxDECLARE_NO_COPY_CLASS(wxCairoContext); }; +#if wxUSE_IMAGE +// ---------------------------------------------------------------------------- +// wxCairoImageContext: context associated with a wxImage. +// ---------------------------------------------------------------------------- + +class wxCairoImageContext : public wxCairoContext +{ +public: + wxCairoImageContext(wxGraphicsRenderer* renderer, wxImage& image) : + wxCairoContext(renderer), + m_image(image), + m_data(renderer, image) + { + Init(cairo_create(m_data.GetCairoSurface())); + } + + virtual ~wxCairoImageContext() + { + m_image = m_data.ConvertToImage(); + } + +private: + wxImage& m_image; + wxCairoBitmapData m_data; + + wxDECLARE_NO_COPY_CLASS(wxCairoImageContext); +}; +#endif // wxUSE_IMAGE + +// ---------------------------------------------------------------------------- +// wxCairoPenBrushBaseData implementation +//----------------------------------------------------------------------------- + +wxCairoPenBrushBaseData::wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer, + const wxColour& col, + bool isTransparent) + : wxGraphicsObjectRefData(renderer) +{ + m_hatchStyle = wxHATCHSTYLE_INVALID; + m_pattern = NULL; + m_bmpdata = NULL; + + if ( isTransparent ) + { + m_red = + m_green = + m_blue = + m_alpha = 0; + } + else // non-transparent + { + m_red = col.Red()/255.0; + m_green = col.Green()/255.0; + m_blue = col.Blue()/255.0; + m_alpha = col.Alpha()/255.0; + } +} + +wxCairoPenBrushBaseData::~wxCairoPenBrushBaseData() +{ + if (m_bmpdata) + { + // Deleting the bitmap data also deletes the pattern referenced by + // m_pattern, so set it to NULL to avoid deleting it twice. + delete m_bmpdata; + m_pattern = NULL; + } + if (m_pattern) + cairo_pattern_destroy(m_pattern); +} + +void wxCairoPenBrushBaseData::InitHatchPattern(cairo_t* ctext) +{ + cairo_surface_t* const + surface = cairo_surface_create_similar( + cairo_get_target(ctext), CAIRO_CONTENT_COLOR_ALPHA, 10, 10 + ); + + cairo_t* const cr = cairo_create(surface); + cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_width(cr, 1); + cairo_set_line_join(cr,CAIRO_LINE_JOIN_MITER); + + switch ( m_hatchStyle ) + { + case wxHATCHSTYLE_CROSS: + cairo_move_to(cr, 5, 0); + cairo_line_to(cr, 5, 10); + cairo_move_to(cr, 0, 5); + cairo_line_to(cr, 10, 5); + break; + + case wxHATCHSTYLE_BDIAGONAL: + cairo_move_to(cr, 0, 10); + cairo_line_to(cr, 10, 0); + break; + + case wxHATCHSTYLE_FDIAGONAL: + cairo_move_to(cr, 0, 0); + cairo_line_to(cr, 10, 10); + break; + + case wxHATCHSTYLE_CROSSDIAG: + cairo_move_to(cr, 0, 0); + cairo_line_to(cr, 10, 10); + cairo_move_to(cr, 10, 0); + cairo_line_to(cr, 0, 10); + break; + + case wxHATCHSTYLE_HORIZONTAL: + cairo_move_to(cr, 0, 5); + cairo_line_to(cr, 10, 5); + break; + + case wxHATCHSTYLE_VERTICAL: + cairo_move_to(cr, 5, 0); + cairo_line_to(cr, 5, 10); + break; + + default: + wxFAIL_MSG(wxS("Invalid hatch pattern style.")); + } + + cairo_set_source_rgba(cr, m_red, m_green, m_blue, m_alpha); + cairo_stroke(cr); + + cairo_destroy(cr); + + m_pattern = cairo_pattern_create_for_surface(surface); + cairo_surface_destroy(surface); + cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT); +} + +void wxCairoPenBrushBaseData::InitStipple(wxBitmap* bmp) +{ + wxCHECK_RET( bmp && bmp->IsOk(), wxS("Invalid stippled bitmap") ); + + m_bmpdata = new wxCairoBitmapData(GetRenderer(), *bmp); + m_pattern = m_bmpdata->GetCairoPattern(); + cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT); +} + +void wxCairoPenBrushBaseData::InitHatch(wxHatchStyle hatchStyle) +{ + // We can't create m_pattern right now as we don't have the Cairo context + // needed for it, so just remember that we need to do it. + m_hatchStyle = hatchStyle; +} + +void wxCairoPenBrushBaseData::Apply( wxGraphicsContext* context ) +{ + cairo_t* const ctext = (cairo_t*) context->GetNativeContext(); + + if ( m_hatchStyle != wxHATCHSTYLE_INVALID && !m_pattern ) + InitHatchPattern(ctext); + + if ( m_pattern ) + cairo_set_source(ctext, m_pattern); + else + cairo_set_source_rgba(ctext, m_red, m_green, m_blue, m_alpha); +} + //----------------------------------------------------------------------------- // wxCairoPenData implementation //----------------------------------------------------------------------------- @@ -425,20 +660,14 @@ void wxCairoPenData::Init() } wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) -: wxGraphicsObjectRefData(renderer) + : wxCairoPenBrushBaseData(renderer, pen.GetColour(), pen.IsTransparent()) { Init(); - m_pen = pen; - m_width = m_pen.GetWidth(); + m_width = pen.GetWidth(); if (m_width <= 0.0) m_width = 0.1; - m_red = m_pen.GetColour().Red()/255.0; - m_green = m_pen.GetColour().Green()/255.0; - m_blue = m_pen.GetColour().Blue()/255.0; - m_alpha = m_pen.GetColour().Alpha()/255.0; - - switch ( m_pen.GetCap() ) + switch ( pen.GetCap() ) { case wxCAP_ROUND : m_cap = CAIRO_LINE_CAP_ROUND; @@ -457,7 +686,7 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) break; } - switch ( m_pen.GetJoin() ) + switch ( pen.GetJoin() ) { case wxJOIN_BEVEL : m_join = CAIRO_LINE_JOIN_BEVEL; @@ -494,7 +723,7 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) 9.0 , 6.0 , 3.0 , 3.0 }; - switch ( m_pen.GetStyle() ) + switch ( pen.GetStyle() ) { case wxPENSTYLE_SOLID : break; @@ -524,7 +753,7 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) case wxPENSTYLE_USER_DASH : { wxDash *wxdashes ; - m_count = m_pen.GetDashes( &wxdashes ) ; + m_count = pen.GetDashes( &wxdashes ) ; if ((wxdashes != NULL) && (m_count > 0)) { m_userLengths = new double[m_count] ; @@ -541,54 +770,18 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) m_lengths = m_userLengths ; } break; + case wxPENSTYLE_STIPPLE : - { - /* - wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) - { - wxDELETE( m_penImage ); - wxDELETE( m_penBrush ); - m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); - m_penBrush = new TextureBrush(m_penImage); - m_pen->SetBrush( m_penBrush ); - } - */ - } + case wxPENSTYLE_STIPPLE_MASK : + case wxPENSTYLE_STIPPLE_MASK_OPAQUE : + InitStipple(pen.GetStipple()); break; + default : - if ( m_pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH - && m_pen.GetStyle() <= wxPENSTYLE_LAST_HATCH ) + if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH + && pen.GetStyle() <= wxPENSTYLE_LAST_HATCH ) { - /* - wxDELETE( m_penBrush ); - HatchStyle style = HatchStyleHorizontal; - switch( pen.GetStyle() ) - { - case wxPENSTYLE_BDIAGONAL_HATCH : - style = HatchStyleBackwardDiagonal; - break ; - case wxPENSTYLE_CROSSDIAG_HATCH : - style = HatchStyleDiagonalCross; - break ; - case wxPENSTYLE_FDIAGONAL_HATCH : - style = HatchStyleForwardDiagonal; - break ; - case wxPENSTYLE_CROSS_HATCH : - style = HatchStyleCross; - break ; - case wxPENSTYLE_HORIZONTAL_HATCH : - style = HatchStyleHorizontal; - break ; - case wxPENSTYLE_VERTICAL_HATCH : - style = HatchStyleVertical; - break ; - - } - m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() , - pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent ); - m_pen->SetBrush( m_penBrush ) - */ + InitHatch(static_cast<wxHatchStyle>(pen.GetStyle())); } break; } @@ -596,9 +789,10 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) void wxCairoPenData::Apply( wxGraphicsContext* context ) { + wxCairoPenBrushBaseData::Apply(context); + cairo_t * ctext = (cairo_t*) context->GetNativeContext(); cairo_set_line_width(ctext,m_width); - cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha); cairo_set_line_cap(ctext,m_cap); cairo_set_line_join(ctext,m_join); cairo_set_dash(ctext,(double*)m_lengths,m_count,0.0); @@ -609,83 +803,29 @@ void wxCairoPenData::Apply( wxGraphicsContext* context ) //----------------------------------------------------------------------------- wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer ) - : wxGraphicsObjectRefData( renderer ) + : wxCairoPenBrushBaseData(renderer, wxColour(), true /* transparent */) { Init(); } -wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush ) - : wxGraphicsObjectRefData(renderer) +wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, + const wxBrush &brush ) + : wxCairoPenBrushBaseData(renderer, brush.GetColour(), brush.IsTransparent()) { Init(); - m_red = brush.GetColour().Red()/255.0; - m_green = brush.GetColour().Green()/255.0; - m_blue = brush.GetColour().Blue()/255.0; - m_alpha = brush.GetColour().Alpha()/255.0; - /* - if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID) - { - m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ) ); - } - else if ( brush.IsHatch() ) - { - HatchStyle style = HatchStyleHorizontal; - switch( brush.GetStyle() ) - { - case wxBRUSHSTYLE_BDIAGONAL_HATCH : - style = HatchStyleBackwardDiagonal; - break ; - case wxBRUSHSTYLE_CROSSDIAG_HATCH : - style = HatchStyleDiagonalCross; - break ; - case wxBRUSHSTYLE_FDIAGONAL_HATCH : - style = HatchStyleForwardDiagonal; - break ; - case wxBRUSHSTYLE_CROSS_HATCH : - style = HatchStyleCross; - break ; - case wxBRUSHSTYLE_HORIZONTAL_HATCH : - style = HatchStyleHorizontal; - break ; - case wxBRUSHSTYLE_VERTICAL_HATCH : - style = HatchStyleVertical; - break ; - - } - m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent ); - } - else - { - wxBitmap* bmp = brush.GetStipple(); - if ( bmp && bmp->Ok() ) + switch ( brush.GetStyle() ) { - wxDELETE( m_brushImage ); - m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); - m_brush = new TextureBrush(m_brushImage); - } - } - */ -} - -wxCairoBrushData::~wxCairoBrushData () -{ - if (m_brushPattern) - cairo_pattern_destroy(m_brushPattern); -} + case wxBRUSHSTYLE_STIPPLE: + case wxBRUSHSTYLE_STIPPLE_MASK: + case wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE: + InitStipple(brush.GetStipple()); + break; -void wxCairoBrushData::Apply( wxGraphicsContext* context ) -{ - cairo_t * ctext = (cairo_t*) context->GetNativeContext(); - if ( m_brushPattern ) - { - cairo_set_source(ctext,m_brushPattern); - } - else - { - cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha); + default: + if ( brush.IsHatch() ) + InitHatch(static_cast<wxHatchStyle>(brush.GetStyle())); + break; } } @@ -701,7 +841,7 @@ void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops) cairo_pattern_add_color_stop_rgba ( - m_brushPattern, + m_pattern, stop.GetPosition(), col.Red()/255.0, col.Green()/255.0, @@ -710,7 +850,7 @@ void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops) ); } - wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, + wxASSERT_MSG(cairo_pattern_status(m_pattern) == CAIRO_STATUS_SUCCESS, wxT("Couldn't create cairo pattern")); } @@ -719,7 +859,7 @@ wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxGraphicsGradientStops& stops) { - m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2); + m_pattern = cairo_pattern_create_linear(x1,y1,x2,y2); AddGradientStops(stops); } @@ -730,64 +870,132 @@ wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, wxDouble radius, const wxGraphicsGradientStops& stops) { - m_brushPattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius); + m_pattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius); AddGradientStops(stops); } void wxCairoBrushData::Init() { - m_brushPattern = NULL; + m_pattern = NULL; + m_bmpdata = NULL; } //----------------------------------------------------------------------------- // wxCairoFontData implementation //----------------------------------------------------------------------------- -wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, - const wxColour& col ) : wxGraphicsObjectRefData(renderer) +void wxCairoFontData::InitColour(const wxColour& col) { m_red = col.Red()/255.0; m_green = col.Green()/255.0; m_blue = col.Blue()/255.0; m_alpha = col.Alpha()/255.0; +} + +void +wxCairoFontData::InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + m_fontName = facename.mb_str(wxConvUTF8); + m_slant = slant; + m_weight = weight; +} + +wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, + const wxColour& col ) + : wxGraphicsObjectRefData(renderer) +#ifdef __WXGTK__ + , m_wxfont(font) +#endif +{ + InitColour(col); + m_size = font.GetPointSize(); - m_underlined = font.GetUnderlined(); #ifdef __WXMAC__ m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() ); #elif defined(__WXGTK__) - m_font = pango_font_description_copy( font.GetNativeFontInfo()->description ); #else - m_fontName = font.GetFaceName().mb_str(wxConvUTF8); - m_slant = font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL; - m_weight = font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL; + InitFontComponents + ( + font.GetFaceName(), + font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); #endif } +wxCairoFontData::wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) : + wxGraphicsObjectRefData(renderer) +{ + InitColour(col); + + // Resolution for Cairo image surfaces is 72 DPI meaning that the sizes in + // points and pixels are identical, so we can just pass the size in pixels + // directly to cairo_set_font_size(). + m_size = sizeInPixels; + +#if defined(__WXMAC__) + m_font = NULL; +#endif + + // There is no need to set m_underlined under wxGTK in this case, it can + // only be used if m_font != NULL. + + InitFontComponents + ( + facename, + flags & wxFONTFLAG_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + flags & wxFONTFLAG_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); +} + wxCairoFontData::~wxCairoFontData() { #ifdef __WXMAC__ - cairo_font_face_destroy( m_font ); -#elif defined(__WXGTK__) - pango_font_description_free( m_font ); -#else + if ( m_font ) + cairo_font_face_destroy( m_font ); #endif } -void wxCairoFontData::Apply( wxGraphicsContext* context ) +bool wxCairoFontData::Apply( wxGraphicsContext* context ) { cairo_t * ctext = (cairo_t*) context->GetNativeContext(); cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha); #ifdef __WXGTK__ - // the rest is done using Pango layouts + if (m_wxfont.IsOk()) + { + // Nothing to do, the caller uses Pango layout functions to do + // everything. + return true; + } #elif defined(__WXMAC__) - cairo_set_font_face(ctext, m_font); - cairo_set_font_size(ctext, m_size ); -#else + if ( m_font ) + { + cairo_set_font_face(ctext, m_font); + cairo_set_font_size(ctext, m_size ); + return true; + } +#endif + + // If we get here, we must be on a platform without native font support or + // we're using toy Cairo API even under wxGTK/wxMac. cairo_select_font_face(ctext, m_fontName, m_slant, m_weight ); cairo_set_font_size(ctext, m_size ); -#endif + + // Indicate that we don't use native fonts for the platforms which care + // about this (currently only wxGTK). + return false; } //----------------------------------------------------------------------------- @@ -1057,42 +1265,90 @@ void * wxCairoMatrixData::GetNativeMatrix() const return (void*) &m_matrix; } +// ---------------------------------------------------------------------------- // wxCairoBitmap implementation -//----------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- + +int wxCairoBitmapData::InitBuffer(int width, int height, cairo_format_t format) +{ + wxUnusedVar(format); // Only really unused with Cairo < 1.6. + + // Determine the stride: use cairo_format_stride_for_width() if available + // but fall back to 4*width for the earlier versions as this is what that + // function always returns, even in latest Cairo, anyhow. + int stride; +#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 6, 0) + if ( cairo_version() >= CAIRO_VERSION_ENCODE(1, 6, 0) ) + { + stride = cairo_format_stride_for_width(format, width); + + // All our code would totally break if stride were not a multiple of 4 + // so ensure this is the case. + if ( stride % 4 ) + { + wxFAIL_MSG("Unexpected Cairo image surface stride."); + + stride += 4 - stride % 4; + } + } + else +#endif + stride = 4*width; + + m_width = width; + m_height = height; + m_buffer = new unsigned char[height*stride]; + + return stride; +} + +void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride) +{ + m_surface = cairo_image_surface_create_for_data( + m_buffer, format, m_width, m_height, stride); + m_pattern = cairo_pattern_create_for_surface(m_surface); +} wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) : - wxGraphicsObjectRefData( renderer ) + wxGraphicsBitmapData( renderer ) { m_surface = bitmap; m_pattern = cairo_pattern_create_for_surface(m_surface); } -wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer ) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsBitmapData( renderer ) { wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap")); #ifdef wxHAS_RAW_BITMAP - int bw = m_width = bmp.GetWidth(); - int bh = m_height = bmp.GetHeight(); - wxBitmap bmpSource = bmp; // we need a non-const instance - m_buffer = new unsigned char[bw*bh*4]; - wxUint32* data = (wxUint32*)m_buffer; - // Create a surface object and copy the bitmap pixel data to it. if the // image has alpha (or a mask represented as alpha) then we'll use a // different format and iterator than if it doesn't... - if (bmpSource.HasAlpha() || bmpSource.GetMask()) + cairo_format_t bufferFormat = bmp.GetDepth() == 32 +#if defined(__WXGTK__) && !defined(__WXGTK3__) + || bmp.GetMask() +#endif + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; + + int stride = InitBuffer(bmp.GetWidth(), bmp.GetHeight(), bufferFormat); + + wxBitmap bmpSource = bmp; // we need a non-const instance + wxUint32* data = (wxUint32*)m_buffer; + + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) { - m_surface = cairo_image_surface_create_for_data( - m_buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4); - wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh)); + // use the bitmap's alpha + wxAlphaPixelData + pixData(bmpSource, wxPoint(0, 0), wxSize(m_width, m_height)); wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); wxAlphaPixelData::Iterator p(pixData); - for (int y=0; y<bh; y++) + for (int y=0; y<m_height; y++) { wxAlphaPixelData::Iterator rowStart = p; - for (int x=0; x<bw; x++) + wxUint32* const rowStartDst = data; + for (int x=0; x<m_width; x++) { // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity, // with alpha in the upper 8 bits, then red, then green, then @@ -1109,22 +1365,24 @@ wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitm ++data; ++p; } + + data = rowStartDst + stride / 4; p = rowStart; p.OffsetY(pixData, 1); } } else // no alpha { - m_surface = cairo_image_surface_create_for_data( - m_buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4); - wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh)); + wxNativePixelData + pixData(bmpSource, wxPoint(0, 0), wxSize(m_width, m_height)); wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); wxNativePixelData::Iterator p(pixData); - for (int y=0; y<bh; y++) + for (int y=0; y<m_height; y++) { wxNativePixelData::Iterator rowStart = p; - for (int x=0; x<bw; x++) + wxUint32* const rowStartDst = data; + for (int x=0; x<m_width; x++) { // Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with // the upper 8 bits unused. Red, Green, and Blue are stored in @@ -1134,14 +1392,218 @@ wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitm ++data; ++p; } + + data = rowStartDst + stride / 4; p = rowStart; p.OffsetY(pixData, 1); } } - m_pattern = cairo_pattern_create_for_surface(m_surface); +#if defined(__WXMSW__) || defined(__WXGTK3__) + // if there is a mask, set the alpha bytes in the target buffer to + // fully transparent or fully opaque + if (bmpSource.GetMask()) + { + wxBitmap bmpMask = bmpSource.GetMask()->GetBitmap(); + bufferFormat = CAIRO_FORMAT_ARGB32; + data = (wxUint32*)m_buffer; + wxNativePixelData + pixData(bmpMask, wxPoint(0, 0), wxSize(m_width, m_height)); + wxCHECK_RET( pixData, wxT("Failed to gain raw access to mask data.")); + + wxNativePixelData::Iterator p(pixData); + for (int y=0; y<m_height; y++) + { + wxNativePixelData::Iterator rowStart = p; + wxUint32* const rowStartDst = data; + for (int x=0; x<m_width; x++) + { + if (p.Red()+p.Green()+p.Blue() == 0) + *data = 0; + else + *data = (wxALPHA_OPAQUE << 24) | (*data & 0x00FFFFFF); + ++data; + ++p; + } + + data = rowStartDst + stride / 4; + p = rowStart; + p.OffsetY(pixData, 1); + } + } +#endif + + InitSurface(bufferFormat, stride); #endif // wxHAS_RAW_BITMAP } +#if wxUSE_IMAGE + +// Helper functions for dealing with alpha pre-multiplication. +namespace +{ + +inline unsigned char Premultiply(unsigned char alpha, unsigned char data) +{ + return alpha ? (data * alpha)/0xff : data; +} + +inline unsigned char Unpremultiply(unsigned char alpha, unsigned char data) +{ + return alpha ? (data * 0xff)/alpha : data; +} + +} // anonymous namespace + +wxCairoBitmapData::wxCairoBitmapData(wxGraphicsRenderer* renderer, + const wxImage& image) + : wxGraphicsBitmapData(renderer) +{ + const cairo_format_t bufferFormat = image.HasAlpha() + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; + + int stride = InitBuffer(image.GetWidth(), image.GetHeight(), bufferFormat); + + // Copy wxImage data into the buffer. Notice that we work with wxUint32 + // values and not bytes becase Cairo always works with buffers in native + // endianness. + wxUint32* dst = reinterpret_cast<wxUint32*>(m_buffer); + const unsigned char* src = image.GetData(); + + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) + { + const unsigned char* alpha = image.GetAlpha(); + + for ( int y = 0; y < m_height; y++ ) + { + wxUint32* const rowStartDst = dst; + + for ( int x = 0; x < m_width; x++ ) + { + const unsigned char a = *alpha++; + + *dst++ = a << 24 | + Premultiply(a, src[0]) << 16 | + Premultiply(a, src[1]) << 8 | + Premultiply(a, src[2]); + src += 3; + } + + dst = rowStartDst + stride / 4; + } + } + else // RGB + { + for ( int y = 0; y < m_height; y++ ) + { + wxUint32* const rowStartDst = dst; + + for ( int x = 0; x < m_width; x++ ) + { + *dst++ = src[0] << 16 | + src[1] << 8 | + src[2]; + src += 3; + } + + dst = rowStartDst + stride / 4; + } + } + + InitSurface(bufferFormat, stride); +} + +wxImage wxCairoBitmapData::ConvertToImage() const +{ + wxImage image(m_width, m_height, false /* don't clear */); + + // Get the surface type and format. + wxCHECK_MSG( cairo_surface_get_type(m_surface) == CAIRO_SURFACE_TYPE_IMAGE, + wxNullImage, + wxS("Can't convert non-image surface to image.") ); + + switch ( cairo_image_surface_get_format(m_surface) ) + { + case CAIRO_FORMAT_ARGB32: + image.SetAlpha(); + break; + + case CAIRO_FORMAT_RGB24: + // Nothing to do, we don't use alpha by default. + break; + + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + wxFAIL_MSG(wxS("Unsupported Cairo image surface type.")); + return wxNullImage; + + default: + wxFAIL_MSG(wxS("Unknown Cairo image surface type.")); + return wxNullImage; + } + + // Prepare for copying data. + const wxUint32* src = (wxUint32*)cairo_image_surface_get_data(m_surface); + wxCHECK_MSG( src, wxNullImage, wxS("Failed to get Cairo surface data.") ); + + int stride = cairo_image_surface_get_stride(m_surface); + wxCHECK_MSG( stride > 0, wxNullImage, + wxS("Failed to get Cairo surface stride.") ); + + // As we work with wxUint32 pointers and not char ones, we need to adjust + // the stride accordingly. This should be lossless as the stride must be a + // multiple of pixel size. + wxASSERT_MSG( !(stride % sizeof(wxUint32)), wxS("Unexpected stride.") ); + stride /= sizeof(wxUint32); + + unsigned char* dst = image.GetData(); + unsigned char *alpha = image.GetAlpha(); + if ( alpha ) + { + // We need to also copy alpha and undo the pre-multiplication as Cairo + // stores pre-multiplied values in this format while wxImage does not. + for ( int y = 0; y < m_height; y++ ) + { + const wxUint32* const rowStart = src; + for ( int x = 0; x < m_width; x++ ) + { + const wxUint32 argb = *src++; + + *alpha++ = (argb & 0xff000000) >> 24; + + // Copy the RGB data undoing the pre-multiplication. + *dst++ = Unpremultiply(*alpha, (argb & 0x00ff0000) >> 16); + *dst++ = Unpremultiply(*alpha, (argb & 0x0000ff00) >> 8); + *dst++ = Unpremultiply(*alpha, (argb & 0x000000ff)); + } + + src = rowStart + stride; + } + } + else // RGB + { + // Things are pretty simple in this case, just copy RGB bytes. + for ( int y = 0; y < m_height; y++ ) + { + const wxUint32* const rowStart = src; + for ( int x = 0; x < m_width; x++ ) + { + const wxUint32 argb = *src++; + + *dst++ = (argb & 0x00ff0000) >> 16; + *dst++ = (argb & 0x0000ff00) >> 8; + *dst++ = (argb & 0x000000ff); + } + + src = rowStart + stride; + } + } + + return image; +} + +#endif // wxUSE_IMAGE + wxCairoBitmapData::~wxCairoBitmapData() { if (m_pattern) @@ -1153,8 +1615,6 @@ wxCairoBitmapData::~wxCairoBitmapData() delete [] m_buffer; } - - //----------------------------------------------------------------------------- // wxCairoContext implementation //----------------------------------------------------------------------------- @@ -1182,26 +1642,68 @@ public : wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ) : wxGraphicsContext(renderer) { +#ifdef __WXMSW__ + // wxMSW contexts always use MM_ANISOTROPIC, which messes up + // text rendering when printing using Cairo. Switch it to MM_TEXT + // map mode to avoid this problem. + HDC hdc = (HDC)dc.GetHDC(); + ::SetMapMode(hdc, MM_TEXT); + m_mswSurface = cairo_win32_printing_surface_create(hdc); + Init( cairo_create(m_mswSurface) ); +#endif + #ifdef __WXGTK20__ const wxDCImpl *impl = dc.GetImpl(); - Init( (cairo_t*) impl->GetCairoContext() ); + cairo_t* cr = static_cast<cairo_t*>(impl->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#endif + wxSize sz = dc.GetSize(); + m_width = sz.x; + m_height = sz.y; wxPoint org = dc.GetDeviceOrigin(); cairo_translate( m_context, org.x, org.y ); double sx,sy; dc.GetUserScale( &sx, &sy ); + +// TODO: Determine if these fixes are needed on other platforms too. +// On MSW, without this the printer context will not respect wxDC SetMapMode calls. +// For example, using dc.SetMapMode(wxMM_POINTS) can let us share printer and screen +// drawing code +#ifdef __WXMSW__ + double lsx,lsy; + dc.GetLogicalScale( &lsx, &lsy ); + sx *= lsx; + sy *= lsy; +#endif cairo_scale( m_context, sx, sy ); org = dc.GetLogicalOrigin(); cairo_translate( m_context, -org.x, -org.y ); -#endif } wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ) : wxGraphicsContext(renderer) { -#ifdef __WXGTK20__ + int width, height; + dc.GetSize( &width, &height ); + m_width = width; + m_height = height; + + m_enableOffset = true; + +#ifdef __WXMSW__ + m_mswSurface = cairo_win32_surface_create((HDC)dc.GetHDC()); + Init( cairo_create(m_mswSurface) ); +#endif + +#ifdef __WXGTK3__ + cairo_t* cr = static_cast<cairo_t*>(dc.GetImpl()->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#elif defined __WXGTK20__ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); @@ -1223,8 +1725,6 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& #endif #ifdef __WXMAC__ - int width, height; - dc.GetSize( &width, &height ); CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); Init( cairo_create( surface ) ); @@ -1235,7 +1735,50 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ) : wxGraphicsContext(renderer) { -#ifdef __WXGTK20__ + int width, height; + dc.GetSize( &width, &height ); + m_width = width; + m_height = height; + + m_enableOffset = true; + +#ifdef __WXMSW__ + + HDC hdc = (HDC)dc.GetHDC(); + + HBITMAP bitmap = (HBITMAP)GetCurrentObject(hdc, OBJ_BITMAP); + + BITMAP info; + bool hasBitmap = false; + + // cairo_win32_surface_create creates a 24-bit bitmap, + // so if we have alpha, we need to create a 32-bit surface instead. + if (!GetObject(bitmap, sizeof(info), &info) || info.bmBitsPixel < 32) + m_mswSurface = cairo_win32_surface_create(hdc); + else { + hasBitmap = true; + m_mswSurface = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, + CAIRO_FORMAT_ARGB32, + info.bmWidth, + info.bmHeight, + info.bmWidthBytes); + } + + Init( cairo_create(m_mswSurface) ); + // If we've created a image surface, we need to flip the Y axis so that + // all drawing will appear right side up. + if (hasBitmap) { + cairo_matrix_t matrix; + cairo_matrix_init(&matrix, 1.0, 0.0, 0.0, -1.0, 0.0, height); + cairo_set_matrix(m_context, &matrix); + } +#endif + +#ifdef __WXGTK3__ + cairo_t* cr = static_cast<cairo_t*>(dc.GetImpl()->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#elif defined __WXGTK20__ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); @@ -1257,8 +1800,6 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& #endif #ifdef __WXMAC__ - int width, height; - dc.GetSize( &width, &height ); CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); Init( cairo_create( surface ) ); @@ -1267,10 +1808,20 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& } #ifdef __WXGTK20__ -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ) +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window ) : wxGraphicsContext(renderer) { - Init( gdk_cairo_create( drawable ) ); + Init( gdk_cairo_create( window ) ); + +#ifdef __WXGTK3__ + m_width = gdk_window_get_width(window); + m_height = gdk_window_get_height(window); +#else + int width, height; + gdk_drawable_get_size(window, &width, &height); + m_width = width; + m_height = height; +#endif } #endif @@ -1279,9 +1830,9 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, HDC handle ) : wxGraphicsContext(renderer) { m_mswSurface = cairo_win32_surface_create(handle); - m_context = cairo_create(m_mswSurface); - PushState(); - PushState(); + Init( cairo_create(m_mswSurface) ); + m_width = + m_height = 0; } #endif @@ -1290,11 +1841,17 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ) : wxGraphicsContext(renderer) { Init( context ); + m_width = + m_height = 0; } wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) -: wxGraphicsContext(renderer) + : wxGraphicsContext(renderer) +#ifdef __WXMSW__ + , m_mswWindowHDC(GetHwndOf(window)) +#endif { + m_enableOffset = true; #ifdef __WXGTK__ // something along these lines (copied from dcclient) @@ -1309,7 +1866,23 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) wxASSERT_MSG( window->m_wxwindow, wxT("wxCairoContext needs a widget") ); Init(gdk_cairo_create(window->GTKGetDrawingWindow())); + + wxSize sz = window->GetSize(); + m_width = sz.x; + m_height = sz.y; +#endif + +#ifdef __WXMSW__ + m_mswSurface = cairo_win32_surface_create((HDC)m_mswWindowHDC); + Init(cairo_create(m_mswSurface)); #endif + +} + +wxCairoContext::wxCairoContext(wxGraphicsRenderer* renderer) : + wxGraphicsContext(renderer) +{ + m_context = NULL; } wxCairoContext::~wxCairoContext() @@ -1317,10 +1890,6 @@ wxCairoContext::~wxCairoContext() if ( m_context ) { PopState(); -#ifdef __WXMSW__ - m_mswSurface = cairo_win32_surface_create((HDC)window->GetHandle()); - m_context = cairo_create(m_mswSurface); -#endif PopState(); cairo_destroy(m_context); } @@ -1507,30 +2076,25 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) if ( !data ) return; - ((wxCairoFontData*)m_font.GetRefData())->Apply(this); - + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) ) + { #ifdef __WXGTK__ - size_t datalen = strlen(data); + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast<wxCairoFontData*>(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + pango_layout_set_text(layout, data, data.length()); + font.GTKSetPangoAttrs(layout); - PangoLayout *layout = pango_cairo_create_layout (m_context); - wxCairoFontData* font_data = (wxCairoFontData*) m_font.GetRefData(); - pango_layout_set_font_description( layout, font_data->GetFont()); - pango_layout_set_text(layout, data, datalen); + cairo_move_to(m_context, x, y); + pango_cairo_show_layout (m_context, layout); - if (font_data->GetUnderlined()) - { - PangoAttrList *attrs = pango_attr_list_new(); - PangoAttribute *attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); - pango_attr_list_insert(attrs, attr); - pango_layout_set_attributes(layout, attrs); - pango_attr_list_unref(attrs); - } + g_object_unref (layout); - cairo_move_to(m_context, x, y); - pango_cairo_show_layout (m_context, layout); + // Don't use Cairo text API, we already did everything. + return; +#endif + } - g_object_unref (layout); -#else // Cairo's x,y for drawing text is at the baseline, so we need to adjust // the position we move to by the ascent. cairo_font_extents_t fe; @@ -1538,7 +2102,6 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) cairo_move_to(m_context, x, y+fe.ascent); cairo_show_text(m_context, data); -#endif } void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, @@ -1558,32 +2121,36 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( str.empty()) return; + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) ) + { #ifdef __WXGTK__ - int w, h; + int w, h; - PangoLayout *layout = pango_cairo_create_layout (m_context); - pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont()); - const wxCharBuffer data = str.utf8_str(); - if ( !data ) - { + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast<wxCairoFontData*>(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + const wxCharBuffer data = str.utf8_str(); + if ( !data ) + { + return; + } + pango_layout_set_text(layout, data, data.length()); + pango_layout_get_pixel_size (layout, &w, &h); + if ( width ) + *width = w; + if ( height ) + *height = h; + if (descent) + { + PangoLayoutIter *iter = pango_layout_get_iter(layout); + int baseline = pango_layout_iter_get_baseline(iter); + pango_layout_iter_free(iter); + *descent = h - PANGO_PIXELS(baseline); + } + g_object_unref (layout); return; +#endif } - pango_layout_set_text( layout, data, strlen(data) ); - pango_layout_get_pixel_size (layout, &w, &h); - if ( width ) - *width = w; - if ( height ) - *height = h; - if (descent) - { - PangoLayoutIter *iter = pango_layout_get_iter(layout); - int baseline = pango_layout_iter_get_baseline(iter); - pango_layout_iter_free(iter); - *descent = h - PANGO_PIXELS(baseline); - } - g_object_unref (layout); -#else - ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this); if (width) { @@ -1616,20 +2183,38 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( externalLeading ) *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent)); } -#endif } void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const { widths.Empty(); - widths.Add(0, text.length()); - wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") ); - - if (text.empty()) - return; - +#ifdef __WXGTK__ + const wxCharBuffer data = text.utf8_str(); + int w = 0; + if (data.length()) + { + PangoLayout* layout = pango_cairo_create_layout(m_context); + const wxFont& font = static_cast<wxCairoFontData*>(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + pango_layout_set_text(layout, data, data.length()); + PangoLayoutIter* iter = pango_layout_get_iter(layout); + PangoRectangle rect; + do { + pango_layout_iter_get_cluster_extents(iter, NULL, &rect); + w += rect.width; + widths.Add(PANGO_PIXELS(w)); + } while (pango_layout_iter_next_cluster(iter)); + pango_layout_iter_free(iter); + g_object_unref(layout); + } + size_t i = widths.GetCount(); + const size_t len = text.length(); + while (i++ < len) + widths.Add(PANGO_PIXELS(w)); +#else // TODO +#endif } void * wxCairoContext::GetNativeContext() @@ -1660,6 +2245,12 @@ bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias) return true; } +bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation)) +{ + // placeholder + return false; +} + bool wxCairoContext::SetCompositionMode(wxCompositionMode op) { if ( m_composition == op ) @@ -1749,11 +2340,18 @@ public : virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ); virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ); +#if wxUSE_IMAGE + virtual wxGraphicsContext * CreateContextFromImage(wxImage& image); +#endif // wxUSE_IMAGE virtual wxGraphicsContext * CreateContext( wxWindow* window ); virtual wxGraphicsContext * CreateMeasuringContext(); - +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE + virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc); +#endif +#endif // Path virtual wxGraphicsPath CreatePath(); @@ -1781,9 +2379,17 @@ public : // sets the font virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ; + virtual wxGraphicsFont CreateFont(double sizeInPixels, + const wxString& facename, + int flags = wxFONTFLAG_DEFAULT, + const wxColour& col = *wxBLACK); // create a native bitmap representation virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ); +#if wxUSE_IMAGE + virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image); + virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp); +#endif // wxUSE_IMAGE // create a graphics bitmap from a native bitmap virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ); @@ -1791,7 +2397,6 @@ public : // create a subimage from a native image representation virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); -private : DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer) } ; @@ -1802,34 +2407,45 @@ private : IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer) static wxCairoRenderer gs_cairoGraphicsRenderer; -// temporary hack to allow creating a cairo context on any platform -extern wxGraphicsRenderer* gCairoRenderer; -wxGraphicsRenderer* gCairoRenderer = &gs_cairoGraphicsRenderer; + +#ifdef __WXGTK__ + #define ENSURE_LOADED_OR_RETURN(returnOnFail) +#else + #define ENSURE_LOADED_OR_RETURN(returnOnFail) \ + if (!wxCairoInit()) \ + return returnOnFail +#endif wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this,dc); } wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this,dc); } wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc) { -#ifdef __WXGTK20__ - const wxDCImpl *impl = dc.GetImpl(); - cairo_t* context = (cairo_t*) impl->GetCairoContext(); - if (context) - return new wxCairoContext(this,dc); - else -#endif - return NULL; + ENSURE_LOADED_OR_RETURN(NULL); + return new wxCairoContext(this, dc); } +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE +wxGraphicsContext * wxCairoRenderer::CreateContext( const wxEnhMetaFileDC& WXUNUSED(dc) ) +{ + return NULL; +} +#endif +#endif + wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context ) { + ENSURE_LOADED_OR_RETURN(NULL); #ifdef __WXMSW__ return new wxCairoContext(this,(HDC)context); #else @@ -1841,23 +2457,34 @@ wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * cont wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window ) { #ifdef __WXGTK__ - return new wxCairoContext(this,(GdkDrawable*)window); + return new wxCairoContext(this, static_cast<GdkWindow*>(window)); #else + wxUnusedVar(window); return NULL; #endif } +#if wxUSE_IMAGE +wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxCairoImageContext(this, image); +} +#endif // wxUSE_IMAGE + wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext() { #ifdef __WXGTK__ return CreateContextFromNativeWindow(gdk_get_default_root_window()); -#endif +#else return NULL; // TODO +#endif } wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this, window ); } @@ -1866,6 +2493,7 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) wxGraphicsPath wxCairoRenderer::CreatePath() { wxGraphicsPath path; + ENSURE_LOADED_OR_RETURN(path); path.SetRefData( new wxCairoPathData(this) ); return path; } @@ -1878,6 +2506,7 @@ wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble { wxGraphicsMatrix m; + ENSURE_LOADED_OR_RETURN(m); wxCairoMatrixData* data = new wxCairoMatrixData( this ); data->Set( a,b,c,d,tx,ty ) ; m.SetRefData(data); @@ -1886,26 +2515,24 @@ wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) { - if ( !pen.Ok() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT ) - return wxNullGraphicsPen; - else + wxGraphicsPen p; + ENSURE_LOADED_OR_RETURN(p); + if (pen.IsOk() && pen.GetStyle() != wxPENSTYLE_TRANSPARENT) { - wxGraphicsPen p; p.SetRefData(new wxCairoPenData( this, pen )); - return p; } + return p; } wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush ) { - if ( !brush.Ok() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT ) - return wxNullGraphicsBrush; - else + wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); + if (brush.IsOk() && brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT) { - wxGraphicsBrush p; p.SetRefData(new wxCairoBrushData( this, brush )); - return p; } + return p; } wxGraphicsBrush @@ -1914,6 +2541,7 @@ wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, const wxGraphicsGradientStops& stops) { wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); wxCairoBrushData* d = new wxCairoBrushData( this ); d->CreateLinearGradientBrush(x1, y1, x2, y2, stops); p.SetRefData(d); @@ -1926,47 +2554,88 @@ wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, const wxGraphicsGradientStops& stops) { wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); wxCairoBrushData* d = new wxCairoBrushData( this ); d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops); p.SetRefData(d); return p; } -// sets the font wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col ) { - if ( font.Ok() ) + wxGraphicsFont p; + ENSURE_LOADED_OR_RETURN(p); + if ( font.IsOk() ) { - wxGraphicsFont p; p.SetRefData(new wxCairoFontData( this , font, col )); - return p; } - else - return wxNullGraphicsFont; + return p; +} + +wxGraphicsFont +wxCairoRenderer::CreateFont(double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) +{ + wxGraphicsFont font; + ENSURE_LOADED_OR_RETURN(font); + font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col)); + return font; } wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp ) { - if ( bmp.Ok() ) + wxGraphicsBitmap p; + ENSURE_LOADED_OR_RETURN(p); + if ( bmp.IsOk() ) { - wxGraphicsBitmap p; p.SetRefData(new wxCairoBitmapData( this , bmp )); - return p; } - else - return wxNullGraphicsBitmap; + return p; } +#if wxUSE_IMAGE + +wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromImage(const wxImage& image) +{ + wxGraphicsBitmap bmp; + + ENSURE_LOADED_OR_RETURN(bmp); + + if ( image.IsOk() ) + { + bmp.SetRefData(new wxCairoBitmapData(this, image)); + } + + return bmp; +} + +wxImage wxCairoRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp) +{ + wxImage image; + ENSURE_LOADED_OR_RETURN(image); + + const wxCairoBitmapData* const + data = static_cast<wxCairoBitmapData*>(bmp.GetGraphicsData()); + if (data) + image = data->ConvertToImage(); + + return image; +} + +#endif // wxUSE_IMAGE + + wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap ) { + wxGraphicsBitmap p; + ENSURE_LOADED_OR_RETURN(p); if ( bitmap != NULL ) { - wxGraphicsBitmap p; p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap )); - return p; } - else - return wxNullGraphicsBitmap; + return p; } wxGraphicsBitmap @@ -1976,8 +2645,9 @@ wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap), wxDouble WXUNUSED(w), wxDouble WXUNUSED(h)) { + wxGraphicsBitmap p; wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented."); - return wxNullGraphicsBitmap; + return p; } wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()