#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_GRAPHICS_CONTEXT
-#include "wx/dc.h"
+#include "wx/graphics.h"
+
+#if wxUSE_CAIRO
+
+// 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/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/bitmap.h"
+ #include "wx/icon.h"
+ #include "wx/dcclient.h"
+ #include "wx/dcmemory.h"
+ #include "wx/dcprint.h"
+ #include "wx/window.h"
#endif
#include "wx/private/graphics.h"
#include "wx/rawbmp.h"
-
-#include <vector>
+#include "wx/vector.h"
using namespace std;
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-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;
-}
-
-static inline double DegToRad(double deg)
-{
- return (deg * M_PI) / 180.0;
-}
-static inline double RadToDeg(double deg)
-{
- return (deg * 180.0) / M_PI;
-}
-
//-----------------------------------------------------------------------------
// device context implementation
//
#endif
#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__
-#include "wx/mac/private.h"
+#include "wx/osx/private.h"
#include <cairo-quartz.h>
#include <cairo-atsui.h>
#endif
/*
- // 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 ) ;
// appends an ellipsis as a new closed subpath fitting the passed rectangle
virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ;
// 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, int fillStyle = wxWINDING_RULE) const;
+ virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxWINDING_RULE) const;
private :
cairo_t* m_pathContext;
virtual void Concat( const wxGraphicsMatrixData *t );
// 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,
+ 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);
// 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;
-
+
// makes this the inverse matrix
virtual void Invert();
virtual void Scale( wxDouble xScale , wxDouble yScale );
// add the rotation to this matrix (radians)
- virtual void Rotate( wxDouble angle );
+ virtual void Rotate( wxDouble angle );
//
// apply the transforms
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 );
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;
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,
- const wxColour&c1, const wxColour&c2 );
- void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor );
+ 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);
protected:
virtual void Init();
-private :
- double m_red;
- double m_green;
- double m_blue;
- double m_alpha;
-
- cairo_pattern_t* m_brushPattern;
+ // common part of Create{Linear,Radial}GradientBrush()
+ void AddGradientStops(const wxGraphicsGradientStops& stops);
};
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; }
+ 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;
double m_red;
double m_green;
#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
};
-class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
+class wxCairoBitmapData : public wxGraphicsBitmapData
{
- DECLARE_NO_COPY_CLASS(wxCairoContext)
+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;
+ int m_height;
+ unsigned char* m_buffer;
+};
+
+class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
+{
public:
wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
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() )
{
}
virtual void Clip( const wxRegion ®ion );
+#ifdef __WXMSW__
+ cairo_surface_t* m_mswSurface;
+ WindowHDC m_mswWindowHDC;
+#endif
// clips drawings to the rect
virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
virtual void * GetNativeContext();
+ virtual bool SetAntialiasMode(wxAntialiasMode antialias);
+
+ virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
+
+ virtual bool SetCompositionMode(wxCompositionMode op);
+
+ virtual void BeginLayer(wxDouble opacity);
+
+ virtual void EndLayer();
+
virtual void StrokePath( const wxGraphicsPath& p );
- virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxWINDING_RULE );
+ virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxWINDING_RULE );
virtual void Translate( wxDouble dx , wxDouble dy );
virtual void Scale( wxDouble xScale , wxDouble yScale );
// gets the matrix of this context
virtual wxGraphicsMatrix GetTransform() const;
+ 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();
- 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;
-private:
+protected:
+ virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
+
void Init(cairo_t *context);
-
+
+private:
cairo_t* m_context;
+
+ wxVector<float> m_layerOpacities;
+
+ 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
}
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;
break;
}
- switch ( m_pen.GetJoin() )
+ switch ( pen.GetJoin() )
{
case wxJOIN_BEVEL :
m_join = CAIRO_LINE_JOIN_BEVEL;
9.0 , 6.0 , 3.0 , 3.0
};
- switch ( m_pen.GetStyle() )
+ switch ( pen.GetStyle() )
{
- case wxSOLID :
+ case wxPENSTYLE_SOLID :
break;
- case wxDOT :
+ case wxPENSTYLE_DOT :
m_count = WXSIZEOF(dotted);
m_userLengths = new double[ m_count ] ;
memcpy( m_userLengths, dotted, sizeof(dotted) );
m_lengths = m_userLengths;
break;
- case wxLONG_DASH :
+ case wxPENSTYLE_LONG_DASH :
m_lengths = dashed ;
m_count = WXSIZEOF(dashed);
break;
- case wxSHORT_DASH :
+ case wxPENSTYLE_SHORT_DASH :
m_lengths = short_dashed ;
m_count = WXSIZEOF(short_dashed);
break;
- case wxDOT_DASH :
+ case wxPENSTYLE_DOT_DASH :
m_lengths = dotted_dashed ;
m_count = WXSIZEOF(dotted_dashed);
break;
- case wxUSER_DASH :
+ 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] ;
m_lengths = m_userLengths ;
}
break;
- case wxSTIPPLE :
- {
- /*
- 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 :
+ case wxPENSTYLE_STIPPLE_MASK :
+ case wxPENSTYLE_STIPPLE_MASK_OPAQUE :
+ InitStipple(pen.GetStipple());
break;
+
default :
- if ( m_pen.GetStyle() >= wxFIRST_HATCH && m_pen.GetStyle() <= wxLAST_HATCH )
+ if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH
+ && pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
{
- /*
- wxDELETE( m_penBrush );
- HatchStyle style = HatchStyleHorizontal;
- switch( pen.GetStyle() )
- {
- case wxBDIAGONAL_HATCH :
- style = HatchStyleBackwardDiagonal;
- break ;
- case wxCROSSDIAG_HATCH :
- style = HatchStyleDiagonalCross;
- break ;
- case wxFDIAGONAL_HATCH :
- style = HatchStyleForwardDiagonal;
- break ;
- case wxCROSS_HATCH :
- style = HatchStyleCross;
- break ;
- case wxHORIZONTAL_HATCH :
- style = HatchStyleHorizontal;
- break ;
- case wxVERTICAL_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;
}
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);
//-----------------------------------------------------------------------------
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() == wxSOLID)
- {
- 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 wxBDIAGONAL_HATCH :
- style = HatchStyleBackwardDiagonal;
- break ;
- case wxCROSSDIAG_HATCH :
- style = HatchStyleDiagonalCross;
- break ;
- case wxFDIAGONAL_HATCH :
- style = HatchStyleForwardDiagonal;
- break ;
- case wxCROSS_HATCH :
- style = HatchStyleCross;
- break ;
- case wxHORIZONTAL_HATCH :
- style = HatchStyleHorizontal;
- break ;
- case wxVERTICAL_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
+ switch ( brush.GetStyle() )
{
- wxBitmap* bmp = brush.GetStipple();
- if ( bmp && bmp->Ok() )
- {
- wxDELETE( m_brushImage );
- m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
- m_brush = new TextureBrush(m_brushImage);
- }
+ case wxBRUSHSTYLE_STIPPLE:
+ case wxBRUSHSTYLE_STIPPLE_MASK:
+ case wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE:
+ InitStipple(brush.GetStipple());
+ break;
+
+ default:
+ if ( brush.IsHatch() )
+ InitHatch(static_cast<wxHatchStyle>(brush.GetStyle()));
+ break;
}
- */
-}
-
-wxCairoBrushData::~wxCairoBrushData ()
-{
- if (m_brushPattern)
- cairo_pattern_destroy(m_brushPattern);
}
-void wxCairoBrushData::Apply( wxGraphicsContext* context )
+void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops)
{
- cairo_t * ctext = (cairo_t*) context->GetNativeContext();
- if ( m_brushPattern )
- {
- cairo_set_source(ctext,m_brushPattern);
- }
- else
+ // loop over all the stops, they include the beginning and ending ones
+ const unsigned numStops = stops.GetCount();
+ for ( unsigned n = 0; n < numStops; n++ )
{
- cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
+ const wxGraphicsGradientStop stop = stops.Item(n);
+
+ const wxColour col = stop.GetColour();
+
+ cairo_pattern_add_color_stop_rgba
+ (
+ m_pattern,
+ stop.GetPosition(),
+ col.Red()/255.0,
+ col.Green()/255.0,
+ col.Blue()/255.0,
+ col.Alpha()/255.0
+ );
}
+
+ wxASSERT_MSG(cairo_pattern_status(m_pattern) == CAIRO_STATUS_SUCCESS,
+ wxT("Couldn't create cairo pattern"));
}
-void wxCairoBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2 )
+void
+wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
- m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2);
- cairo_pattern_add_color_stop_rgba(m_brushPattern,0.0,c1.Red()/255.0,
- c1.Green()/255.0, c1.Blue()/255.0,c1.Alpha()/255.0);
- cairo_pattern_add_color_stop_rgba(m_brushPattern,1.0,c2.Red()/255.0,
- c2.Green()/255.0, c2.Blue()/255.0,c2.Alpha()/255.0);
- wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, wxT("Couldn't create cairo pattern"));
+ m_pattern = cairo_pattern_create_linear(x1,y1,x2,y2);
+
+ AddGradientStops(stops);
}
-void wxCairoBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor )
+void
+wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
{
- m_brushPattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius);
- cairo_pattern_add_color_stop_rgba(m_brushPattern,0.0,oColor.Red()/255.0,
- oColor.Green()/255.0, oColor.Blue()/255.0,oColor.Alpha()/255.0);
- cairo_pattern_add_color_stop_rgba(m_brushPattern,1.0,cColor.Red()/255.0,
- cColor.Green()/255.0, cColor.Blue()/255.0,cColor.Alpha()/255.0);
- wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, wxT("Couldn't create cairo pattern"));
+ 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_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();
#ifdef __WXMAC__
- m_font = cairo_atsui_font_face_create_for_atsu_font_id( font.MacGetATSUFontID() );
+ 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
- cairo_select_font_face(ctext, m_fontName, m_slant, m_weights );
- cairo_set_font_size(ctext, m_size );
+ 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 );
+
+ // Indicate that we don't use native fonts for the platforms which care
+ // about this (currently only wxGTK).
+ return false;
}
//-----------------------------------------------------------------------------
void wxCairoPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
{
- // as clockwise means positive in our system (y pointing downwards)
+ // as clockwise means positive in our system (y pointing downwards)
// TODO make this interpretation dependent of the
// real device trans
if ( clockwise||(endAngle-startAngle)>=2*M_PI)
}
// transforms each point of this path by the matrix
-void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix )
+void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix )
{
// as we don't have a true path object, we have to apply the inverse
// matrix to the context
cairo_matrix_t m = *((cairo_matrix_t*) matrix->GetNativeMatrix());
cairo_matrix_invert( &m );
cairo_transform(m_pathContext,&m);
-}
+}
// gets the bounding box enclosing all points (possibly including control points)
void wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
*x = x1;
*w = x2-x1;
}
-
+
if( y2 < y1 )
{
*y = y2;
}
}
-bool wxCairoPathData::Contains( wxDouble x, wxDouble y, int WXUNUSED(fillStyle) ) const
+bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
{
- return cairo_in_stroke( m_pathContext, x, y) != 0;
+ cairo_set_fill_rule(m_pathContext,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
+ return cairo_in_fill( m_pathContext, x, y) != 0;
}
//-----------------------------------------------------------------------------
m_matrix = *matrix;
}
-wxCairoMatrixData::~wxCairoMatrixData()
+wxCairoMatrixData::~wxCairoMatrixData()
{
// nothing to do
}
-wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
+wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
{
return new wxCairoMatrixData(GetRenderer(),&m_matrix);
}
// concatenates the matrix
-void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
+void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
{
- cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix());
+ cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix());
}
// sets the matrix to the respective values
-void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
- wxDouble tx, wxDouble ty)
+void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
{
cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty);
}
}
// makes this the inverse matrix
-void wxCairoMatrixData::Invert()
+void wxCairoMatrixData::Invert()
{
cairo_matrix_invert( &m_matrix );
}
// returns true if the elements of the transformation matrix are equal ?
-bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
+bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
{
const cairo_matrix_t* tm = (cairo_matrix_t*) t->GetNativeMatrix();
- return (
- m_matrix.xx == tm->xx &&
- m_matrix.yx == tm->yx &&
- m_matrix.xy == tm->xy &&
- m_matrix.yy == tm->yy &&
- m_matrix.x0 == tm->x0 &&
+ return (
+ m_matrix.xx == tm->xx &&
+ m_matrix.yx == tm->yx &&
+ m_matrix.xy == tm->xy &&
+ m_matrix.yy == tm->yy &&
+ m_matrix.x0 == tm->x0 &&
m_matrix.y0 == tm->y0 ) ;
}
}
// add the rotation to this matrix (radians)
-void wxCairoMatrixData::Rotate( wxDouble angle )
+void wxCairoMatrixData::Rotate( wxDouble angle )
{
cairo_matrix_rotate( &m_matrix, angle) ;
-}
+}
//
// apply the transforms
return (void*) &m_matrix;
}
-//-----------------------------------------------------------------------------
-// wxCairoContext implementation
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxCairoBitmap implementation
+// ----------------------------------------------------------------------------
-class wxCairoOffsetHelper
+int wxCairoBitmapData::InitBuffer(int width, int height, cairo_format_t format)
{
-public :
- wxCairoOffsetHelper( cairo_t* ctx , bool offset )
- {
- m_ctx = ctx;
- m_offset = offset;
- if ( m_offset )
- cairo_translate( m_ctx, 0.5, 0.5 );
- }
- ~wxCairoOffsetHelper( )
+ 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) )
{
- if ( m_offset )
- cairo_translate( m_ctx, -0.5, -0.5 );
+ 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;
+ }
}
-public :
- cairo_t* m_ctx;
- bool m_offset;
-} ;
+ else
+#endif
+ stride = 4*width;
-wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc )
-: wxGraphicsContext(renderer)
+ m_width = width;
+ m_height = height;
+ m_buffer = new unsigned char[height*stride];
+
+ return stride;
+}
+
+void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride)
{
-#ifdef __WXGTK__
+ 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 ) :
+ wxGraphicsBitmapData( renderer )
+{
+ m_surface = bitmap;
+ m_pattern = cairo_pattern_create_for_surface(m_surface);
+}
+
+wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsBitmapData( renderer )
+{
+ wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
+
+#ifdef wxHAS_RAW_BITMAP
+ // 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...
+ 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 )
+ {
+ // 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<m_height; y++)
+ {
+ wxAlphaPixelData::Iterator rowStart = p;
+ 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
+ // blue. The 32-bit quantities are stored native-endian.
+ // Pre-multiplied alpha is used.
+ unsigned char alpha = p.Alpha();
+ if (alpha == 0)
+ *data = 0;
+ else
+ *data = ( alpha << 24
+ | (p.Red() * alpha/255) << 16
+ | (p.Green() * alpha/255) << 8
+ | (p.Blue() * alpha/255) );
+ ++data;
+ ++p;
+ }
+
+ data = rowStartDst + stride / 4;
+ p = rowStart;
+ p.OffsetY(pixData, 1);
+ }
+ }
+ else // no alpha
+ {
+ 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<m_height; y++)
+ {
+ wxNativePixelData::Iterator rowStart = p;
+ 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
+ // the remaining 24 bits in that order. The 32-bit quantities
+ // are stored native-endian.
+ *data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
+ ++data;
+ ++p;
+ }
+
+ data = rowStartDst + stride / 4;
+ p = rowStart;
+ p.OffsetY(pixData, 1);
+ }
+ }
+#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)
+ cairo_pattern_destroy(m_pattern);
+
+ if (m_surface)
+ cairo_surface_destroy(m_surface);
+
+ delete [] m_buffer;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoContext implementation
+//-----------------------------------------------------------------------------
+
+class wxCairoOffsetHelper
+{
+public :
+ wxCairoOffsetHelper( cairo_t* ctx , bool offset )
+ {
+ m_ctx = ctx;
+ m_offset = offset;
+ if ( m_offset )
+ cairo_translate( m_ctx, 0.5, 0.5 );
+ }
+ ~wxCairoOffsetHelper( )
+ {
+ if ( m_offset )
+ cairo_translate( m_ctx, -0.5, -0.5 );
+ }
+public :
+ cairo_t* m_ctx;
+ bool m_offset;
+} ;
+
+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() );
+#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 );
+}
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc )
+: wxGraphicsContext(renderer)
+{
+ 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(cr);
+#elif defined __WXGTK20__
wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+
+#if 0
+ wxGraphicsMatrix matrix = CreateMatrix();
+
+ wxPoint org = dc.GetDeviceOrigin();
+ matrix.Translate( org.x, org.y );
+
+ org = dc.GetLogicalOrigin();
+ matrix.Translate( -org.x, -org.y );
+
+ double sx,sy;
+ dc.GetUserScale( &sx, &sy );
+ matrix.Scale( sx, sy );
+
+ ConcatTransform( matrix );
#endif
+#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 ) );
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc )
: wxGraphicsContext(renderer)
{
-#ifdef __WXGTK__
+ 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(cr);
+#elif defined __WXGTK20__
wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+
+#if 0
+ wxGraphicsMatrix matrix = CreateMatrix();
+
+ wxPoint org = dc.GetDeviceOrigin();
+ matrix.Translate( org.x, org.y );
+
+ org = dc.GetLogicalOrigin();
+ matrix.Translate( -org.x, -org.y );
+
+ double sx,sy;
+ dc.GetUserScale( &sx, &sy );
+ matrix.Scale( sx, sy );
+
+ ConcatTransform( matrix );
+#endif
#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 ) );
#endif
}
-#ifdef __WXGTK__
-wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable )
+#ifdef __WXGTK20__
+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
+#ifdef __WXMSW__
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, HDC handle )
+: wxGraphicsContext(renderer)
+{
+ m_mswSurface = cairo_win32_surface_create(handle);
+ Init( cairo_create(m_mswSurface) );
+ m_width =
+ m_height = 0;
+}
+#endif
+
+
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)
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()
PopState();
cairo_destroy(m_context);
}
+#ifdef __WXMSW__
+ if ( m_mswSurface )
+ cairo_surface_destroy(m_mswSurface);
+#endif
}
void wxCairoContext::Init(cairo_t *context)
path.AddRectangle(ri.GetX(), ri.GetY(), ri.GetW(), ri.GetH());
++ri;
}
-
+
// Put it in the context
cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
cairo_append_path(m_context, cp);
// clip to that path
cairo_clip(m_context);
- path.UnGetNativePath(cp);
+ path.UnGetNativePath(cp);
}
void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
// clip to that path
cairo_clip(m_context);
- path.UnGetNativePath(cp);
+ path.UnGetNativePath(cp);
}
void wxCairoContext::ResetClip()
void wxCairoContext::StrokePath( const wxGraphicsPath& path )
{
if ( !m_pen.IsNull() )
- {
- wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
+ {
+ wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
cairo_append_path(m_context,cp);
((wxCairoPenData*)m_pen.GetRefData())->Apply(this);
}
}
-void wxCairoContext::FillPath( const wxGraphicsPath& path , int fillStyle )
+void wxCairoContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
{
if ( !m_brush.IsNull() )
{
void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
+ wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
+ DrawBitmap(bitmap, x, y, w, h);
- cairo_surface_t* surface;
- int bw = bmp.GetWidth();
- int bh = bmp.GetHeight();
- wxBitmap bmpSource = bmp; // we need a non-const instance
- unsigned char* buffer = new unsigned char[bw*bh*4];
- wxUint32* data = (wxUint32*)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())
- {
- surface = cairo_image_surface_create_for_data(
- buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4);
- wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
- wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
-
- wxAlphaPixelData::Iterator p(pixData);
- for (int y=0; y<bh; y++)
- {
- wxAlphaPixelData::Iterator rowStart = p;
- for (int x=0; x<bw; x++)
- {
- // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
- // with alpha in the upper 8 bits, then red, then green, then
- // blue. The 32-bit quantities are stored native-endian.
- // Pre-multiplied alpha is used.
- unsigned char alpha = p.Alpha();
- if (alpha == 0)
- *data = 0;
- else
- *data = ( alpha << 24
- | (p.Red() * alpha/255) << 16
- | (p.Green() * alpha/255) << 8
- | (p.Blue() * alpha/255) );
- ++data;
- ++p;
- }
- p = rowStart;
- p.OffsetY(pixData, 1);
- }
- }
- else // no alpha
- {
- surface = cairo_image_surface_create_for_data(
- buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4);
- wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
- wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
-
- wxNativePixelData::Iterator p(pixData);
- for (int y=0; y<bh; y++)
- {
- wxNativePixelData::Iterator rowStart = p;
- for (int x=0; x<bw; 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
- // the remaining 24 bits in that order. The 32-bit quantities
- // are stored native-endian.
- *data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
- ++data;
- ++p;
- }
- p = rowStart;
- p.OffsetY(pixData, 1);
- }
- }
+}
-
+void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
PushState();
-
+
// In case we're scaling the image by using a width and height different
// than the bitmap's size create a pattern transformation on the surface and
// draw the transformed pattern.
- cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface);
- wxDouble scaleX = w / bw;
- wxDouble scaleY = h / bh;
- cairo_scale(m_context, scaleX, scaleY);
+ wxCairoBitmapData* data = static_cast<wxCairoBitmapData*>(bmp.GetRefData());
+ cairo_pattern_t* pattern = data->GetCairoPattern();
+ wxSize size = data->GetSize();
+
+ wxDouble scaleX = w / size.GetWidth();
+ wxDouble scaleY = h / size.GetHeight();
// prepare to draw the image
cairo_translate(m_context, x, y);
+ cairo_scale(m_context, scaleX, scaleY);
cairo_set_source(m_context, pattern);
// use the original size here since the context is scaled already...
- cairo_rectangle(m_context, 0, 0, bw, bh);
+ cairo_rectangle(m_context, 0, 0, size.GetWidth(), size.GetHeight());
// fill the rectangle using the pattern
cairo_fill(m_context);
- // clean up
- cairo_pattern_destroy(pattern);
- cairo_surface_destroy(surface);
- delete [] buffer;
PopState();
}
}
-void wxCairoContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
+void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y)
{
- if ( m_font.IsNull() || str.empty())
+ wxCHECK_RET( !m_font.IsNull(),
+ wxT("wxCairoContext::DrawText - no valid font set") );
+
+ if ( str.empty())
return;
-#ifdef __WXGTK__
const wxCharBuffer data = str.utf8_str();
if ( !data )
return;
- size_t datalen = strlen(data);
- ((wxCairoFontData*)m_font.GetRefData())->Apply(this);
- PangoLayout *layout = pango_cairo_create_layout (m_context);
- pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont());
- pango_layout_set_text(layout, data, datalen);
- cairo_move_to(m_context, x, y);
- pango_cairo_show_layout (m_context, layout);
+ if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) )
+ {
+#ifdef __WXGTK__
+ 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);
+
+ cairo_move_to(m_context, x, y);
+ pango_cairo_show_layout (m_context, layout);
+
+ g_object_unref (layout);
+
+ // Don't use Cairo text API, we already did everything.
+ return;
+#endif
+ }
- g_object_unref (layout);
-#else
- ((wxCairoFontData*)m_font.GetRefData())->Apply(this);
// 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;
cairo_font_extents(m_context, &fe);
cairo_move_to(m_context, x, y+fe.ascent);
-
- const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
- cairo_show_text(m_context,buf);
-#endif
+
+ cairo_show_text(m_context, data);
}
void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const
{
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetTextExtent - no valid font set") );
+
if ( width )
*width = 0;
if ( height )
if ( externalLeading )
*externalLeading = 0;
- if ( m_font.IsNull() || str.empty())
+ if ( str.empty())
return;
-#ifdef __WXGTK__
- 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 )
+ if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) )
{
+#ifdef __WXGTK__
+ int w, h;
+
+ 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)
{
{
cairo_font_extents_t fe;
cairo_font_extents(m_context, &fe);
-
+
// some backends have negative descents
-
+
if ( fe.descent < 0 )
fe.descent = -fe.descent;
-
+
if ( fe.height < (fe.ascent + fe.descent ) )
{
// some backends are broken re height ... (eg currently ATSUI)
fe.height = fe.ascent + fe.descent;
}
-
+
if (height)
*height = fe.height;
if ( descent )
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());
-
- if (text.empty())
- return;
-
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") );
+#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()
+void * wxCairoContext::GetNativeContext()
{
return m_context;
}
+bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias)
+{
+ if (m_antialias == antialias)
+ return true;
+
+ m_antialias = antialias;
+
+ cairo_antialias_t antialiasMode;
+ switch (antialias)
+ {
+ case wxANTIALIAS_DEFAULT:
+ antialiasMode = CAIRO_ANTIALIAS_DEFAULT;
+ break;
+ case wxANTIALIAS_NONE:
+ antialiasMode = CAIRO_ANTIALIAS_NONE;
+ break;
+ default:
+ return false;
+ }
+ cairo_set_antialias(m_context, antialiasMode);
+ return true;
+}
+
+bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation))
+{
+ // placeholder
+ return false;
+}
+
+bool wxCairoContext::SetCompositionMode(wxCompositionMode op)
+{
+ if ( m_composition == op )
+ return true;
+
+ m_composition = op;
+ cairo_operator_t cop;
+ switch (op)
+ {
+ case wxCOMPOSITION_CLEAR:
+ cop = CAIRO_OPERATOR_CLEAR;
+ break;
+ case wxCOMPOSITION_SOURCE:
+ cop = CAIRO_OPERATOR_SOURCE;
+ break;
+ case wxCOMPOSITION_OVER:
+ cop = CAIRO_OPERATOR_OVER;
+ break;
+ case wxCOMPOSITION_IN:
+ cop = CAIRO_OPERATOR_IN;
+ break;
+ case wxCOMPOSITION_OUT:
+ cop = CAIRO_OPERATOR_OUT;
+ break;
+ case wxCOMPOSITION_ATOP:
+ cop = CAIRO_OPERATOR_ATOP;
+ break;
+ case wxCOMPOSITION_DEST:
+ cop = CAIRO_OPERATOR_DEST;
+ break;
+ case wxCOMPOSITION_DEST_OVER:
+ cop = CAIRO_OPERATOR_DEST_OVER;
+ break;
+ case wxCOMPOSITION_DEST_IN:
+ cop = CAIRO_OPERATOR_DEST_IN;
+ break;
+ case wxCOMPOSITION_DEST_OUT:
+ cop = CAIRO_OPERATOR_DEST_OUT;
+ break;
+ case wxCOMPOSITION_DEST_ATOP:
+ cop = CAIRO_OPERATOR_DEST_ATOP;
+ break;
+ case wxCOMPOSITION_XOR:
+ cop = CAIRO_OPERATOR_XOR;
+ break;
+ case wxCOMPOSITION_ADD:
+ cop = CAIRO_OPERATOR_ADD;
+ break;
+ default:
+ return false;
+ }
+ cairo_set_operator(m_context, cop);
+ return true;
+}
+
+void wxCairoContext::BeginLayer(wxDouble opacity)
+{
+ m_layerOpacities.push_back(opacity);
+ cairo_push_group(m_context);
+}
+
+void wxCairoContext::EndLayer()
+{
+ float opacity = m_layerOpacities.back();
+ m_layerOpacities.pop_back();
+ cairo_pop_group_to_source(m_context);
+ cairo_paint_with_alpha(m_context,opacity);
+}
+
//-----------------------------------------------------------------------------
// wxCairoRenderer declaration
//-----------------------------------------------------------------------------
virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
+ virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
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();
// Matrix
- virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ 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 wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
- // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
- virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2) ;
+ virtual wxGraphicsBrush
+ CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops);
- // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
- // with radius r and color cColor
- virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor) ;
+ virtual wxGraphicsBrush
+ CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops);
// 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 );
+
+ // 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)
} ;
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__
-wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
-{
- return &gs_cairoGraphicsRenderer;
-}
+ #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)
+{
+ 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
return new wxCairoContext(this,(cairo_t*)context);
+#endif
}
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());
+#else
return NULL;
// TODO
+#endif
}
wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window )
{
+ ENSURE_LOADED_OR_RETURN(NULL);
return new wxCairoContext(this, window );
}
wxGraphicsPath wxCairoRenderer::CreatePath()
{
wxGraphicsPath path;
+ ENSURE_LOADED_OR_RETURN(path);
path.SetRefData( new wxCairoPathData(this) );
return path;
}
// Matrix
-wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty)
{
wxGraphicsMatrix m;
+ ENSURE_LOADED_OR_RETURN(m);
wxCairoMatrixData* data = new wxCairoMatrixData( this );
data->Set( a,b,c,d,tx,ty ) ;
m.SetRefData(data);
return m;
}
-wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
+wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
{
- if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
- 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 )
+wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
{
- if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
- 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;
}
-// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush wxCairoRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2)
+wxGraphicsBrush
+wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
wxGraphicsBrush p;
+ ENSURE_LOADED_OR_RETURN(p);
wxCairoBrushData* d = new wxCairoBrushData( this );
- d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
+ d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
p.SetRefData(d);
return p;
}
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-// with radius r and color cColor
-wxGraphicsBrush wxCairoRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+wxGraphicsBrush
+wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble r,
+ const wxGraphicsGradientStops& stops)
{
wxGraphicsBrush p;
+ ENSURE_LOADED_OR_RETURN(p);
wxCairoBrushData* d = new wxCairoBrushData( this );
- d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+ 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 )
+wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
{
- if ( font.Ok() )
- {
- wxGraphicsFont p;
+ wxGraphicsFont p;
+ ENSURE_LOADED_OR_RETURN(p);
+ if ( font.IsOk() )
+ {
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 )
+{
+ wxGraphicsBitmap p;
+ ENSURE_LOADED_OR_RETURN(p);
+ if ( bmp.IsOk() )
+ {
+ p.SetRefData(new wxCairoBitmapData( this , bmp ));
+ }
+ 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 )
+ {
+ p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap ));
+ }
+ return p;
+}
+
+wxGraphicsBitmap
+wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap),
+ wxDouble WXUNUSED(x),
+ wxDouble WXUNUSED(y),
+ wxDouble WXUNUSED(w),
+ wxDouble WXUNUSED(h))
+{
+ wxGraphicsBitmap p;
+ wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
+ return p;
+}
+
+wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
+{
+ return &gs_cairoGraphicsRenderer;
+}
+
+#else // !wxUSE_CAIRO
+
+wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
+{
+ return NULL;
+}
+
+#endif // wxUSE_CAIRO/!wxUSE_CAIRO
+
+// MSW and OS X have their own native default renderers, but the other ports
+// use Cairo by default
+#if !(defined(__WXMSW__) || defined(__WXOSX__))
+wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
+{
+ return GetCairoRenderer();
}
+#endif // !(__WXMSW__ || __WXOSX__)
-#endif // wxUSE_GRAPHICS_CONTEXT
+#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff