#include "wx/wxprec.h"
-#include "wx/dc.h"
-
#ifdef __BORLANDC__
-#pragma hdrstop
-#endif
-
-#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"
+ #pragma hdrstop
#endif
-#include "wx/graphics.h"
-
#if wxUSE_GRAPHICS_CONTEXT
-#include <vector>
+#include "wx/graphics.h"
-using namespace std;
+#if wxUSE_CAIRO
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
+// 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
-const double RAD2DEG = 180.0 / M_PI;
+#include "wx/cairo.h"
-//-----------------------------------------------------------------------------
-// Local functions
-//-----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+ #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
-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;
-}
+#include "wx/private/graphics.h"
+#include "wx/rawbmp.h"
+#include "wx/vector.h"
-static inline double DegToRad(double deg)
-{
- return (deg * M_PI) / 180.0;
-}
-static inline double RadToDeg(double deg)
-{
- return (deg * 180.0) / M_PI;
-}
+using namespace std;
//-----------------------------------------------------------------------------
// 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
+#endif
+
+#ifdef __WXMAC__
+#include "wx/osx/private.h"
+#include <cairo-quartz.h>
+#include <cairo-atsui.h>
+#endif
-class WXDLLEXPORT wxCairoPath : public wxGraphicsPath
+class WXDLLIMPEXP_CORE wxCairoPathData : public wxGraphicsPathData
{
- DECLARE_NO_COPY_CLASS(wxCairoPath)
public :
- wxCairoPath();
- ~wxCairoPath();
+ wxCairoPathData(wxGraphicsRenderer* renderer, cairo_t* path = NULL);
+ ~wxCairoPathData();
+ virtual wxGraphicsObjectRefData *Clone() const;
//
// These are the path primitives from which everything else can be constructed
virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) ;
// gets the last point of the current path, (0,0) if not yet set
- virtual void GetCurrentPoint( wxDouble& x, wxDouble&y) ;
+ virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
+
+ // adds another path
+ virtual void AddPath( const wxGraphicsPathData* path );
// closes the current sub-path
virtual void CloseSubpath();
/*
- // 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 ) ;
virtual void * GetNativePath() const ;
// give the native path returned by GetNativePath() back (there might be some deallocations necessary)
- virtual void UnGetNativePath(void *p) ;
+ virtual void UnGetNativePath(void *p) const;
+
+ // transforms each point of this path by the matrix
+ virtual void Transform( const wxGraphicsMatrixData* matrix ) ;
+
+ // gets the bounding box enclosing all points (possibly including control points)
+ virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
+
+ virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxWINDING_RULE) const;
private :
cairo_t* m_pathContext;
};
-wxCairoPath::wxCairoPath()
+class WXDLLIMPEXP_CORE wxCairoMatrixData : public wxGraphicsMatrixData
{
- cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1);
- m_pathContext = cairo_create(surface);
- cairo_surface_destroy (surface);
-}
+public :
+ wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix = NULL ) ;
+ virtual ~wxCairoMatrixData() ;
-wxCairoPath::~wxCairoPath()
-{
- cairo_destroy(m_pathContext);
-}
+ virtual wxGraphicsObjectRefData *Clone() const ;
-void* wxCairoPath::GetNativePath() const
-{
- return cairo_copy_path(m_pathContext) ;
-}
+ // concatenates the matrix
+ virtual void Concat( const wxGraphicsMatrixData *t );
-void wxCairoPath::UnGetNativePath(void *p)
-{
- cairo_path_destroy((cairo_path_t*)p);
-}
+ // sets the matrix to the respective values
+ virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ wxDouble tx=0.0, wxDouble ty=0.0);
-//
-// The Primitives
-//
+ // 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;
-void wxCairoPath::MoveToPoint( wxDouble x , wxDouble y )
-{
- cairo_move_to(m_pathContext,x,y);
-}
+ // makes this the inverse matrix
+ virtual void Invert();
-void wxCairoPath::AddLineToPoint( wxDouble x , wxDouble y )
-{
- cairo_line_to(m_pathContext,x,y);
-}
+ // returns true if the elements of the transformation matrix are equal ?
+ virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
-void wxCairoPath::CloseSubpath()
-{
- cairo_close_path(m_pathContext);
-}
+ // return true if this is the identity matrix
+ virtual bool IsIdentity() const;
-void wxCairoPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
-{
- cairo_curve_to(m_pathContext,cx1,cy1,cx2,cy2,x,y);
-}
+ //
+ // transformation
+ //
-// gets the last point of the current path, (0,0) if not yet set
-void wxCairoPath::GetCurrentPoint( wxDouble& x, wxDouble&y)
+ // add the translation to this matrix
+ virtual void Translate( wxDouble dx , wxDouble dy );
+
+ // add the scale to this matrix
+ virtual void Scale( wxDouble xScale , wxDouble yScale );
+
+ // add the rotation to this matrix (radians)
+ virtual void Rotate( wxDouble angle );
+
+ //
+ // apply the transforms
+ //
+
+ // applies that matrix to the point
+ virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
+
+ // applies the matrix except for translations
+ virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
+
+ // returns the native representation
+ virtual void * GetNativeMatrix() const;
+private:
+ cairo_matrix_t m_matrix ;
+} ;
+
+// Common base class for pens and brushes.
+class wxCairoPenBrushBaseData : public wxGraphicsObjectRefData
{
- double dx,dy;
- cairo_get_current_point(m_pathContext,&dx,&dy);
- x = dx;
- y = dy;
-}
+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);
+};
-void wxCairoPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
+class WXDLLIMPEXP_CORE wxCairoPenData : public wxCairoPenBrushBaseData
{
- // 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)
- cairo_arc(m_pathContext,x,y,r,startAngle,endAngle);
- else
- cairo_arc_negative(m_pathContext,x,y,r,startAngle,endAngle);
-}
+public:
+ wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
+ ~wxCairoPenData();
+
+ void Init();
+
+ virtual void Apply( wxGraphicsContext* context );
+ virtual wxDouble GetWidth() { return m_width; }
+
+private :
+ double m_width;
-/*
-void wxCairoPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+ cairo_line_cap_t m_cap;
+ cairo_line_join_t m_join;
+
+ int m_count;
+ const double *m_lengths;
+ double *m_userLengths;
+
+ wxDECLARE_NO_COPY_CLASS(wxCairoPenData);
+};
+
+class WXDLLIMPEXP_CORE wxCairoBrushData : public wxCairoPenBrushBaseData
{
- m_path->AddRectangle(RectF(x,y,w,h));
-}
-*/
-//
-//
-//
-/*
-// closes the current subpath
-void wxCairoPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
+public:
+ wxCairoBrushData( wxGraphicsRenderer* renderer );
+ wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
+
+ 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();
+
+ // common part of Create{Linear,Radial}GradientBrush()
+ void AddGradientStops(const wxGraphicsGradientStops& stops);
+};
+
+class wxCairoFontData : public wxGraphicsObjectRefData
{
-// CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
-}
-
-*/
+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 bool Apply( wxGraphicsContext* context );
+#ifdef __WXGTK__
+ 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;
+ double m_blue;
+ double m_alpha;
+#ifdef __WXMAC__
+ cairo_font_face_t *m_font;
+#elif defined(__WXGTK__)
+ 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;
+};
-class WXDLLEXPORT 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( const wxWindowDC& dc );
- wxCairoContext();
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc );
+#ifdef __WXGTK__
+ 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);
+
+ // 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() )
+ {
+ penwidth = (int)((wxCairoPenData*)m_pen.GetRefData())->GetWidth();
+ if ( penwidth == 0 )
+ penwidth = 1;
+ }
+ return ( penwidth % 2 ) == 1;
+ }
+
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 void StrokePath( const wxGraphicsPath *p );
- virtual void FillPath( const wxGraphicsPath *p , int fillStyle = wxWINDING_RULE );
+ virtual bool SetAntialiasMode(wxAntialiasMode antialias);
+
+ virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
+
+ virtual bool SetCompositionMode(wxCompositionMode op);
- virtual wxGraphicsPath* CreatePath();
- virtual void SetPen( const wxPen &pen );
- virtual void SetBrush( const wxBrush &brush );
- virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) ;
- virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor);
+ virtual void BeginLayer(wxDouble opacity);
+
+ virtual void EndLayer();
+
+ virtual void StrokePath( const wxGraphicsPath& p );
+ virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxWINDING_RULE );
virtual void Translate( wxDouble dx , wxDouble dy );
virtual void Scale( wxDouble xScale , wxDouble yScale );
virtual void Rotate( wxDouble angle );
+ // concatenates this transform with the current transform of this context
+ virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
+
+ // sets the transform of this context
+ virtual void SetTransform( const wxGraphicsMatrix& matrix );
+
+ // 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 SetFont( const wxFont &font );
- virtual void SetTextColor( const wxColour &col );
- virtual void DrawText( const wxString &str, wxDouble x, wxDouble y);
virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const;
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
+protected:
+ virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
+
+ void Init(cairo_t *context);
+
private:
cairo_t* m_context;
- bool m_penTransparent;
- bool m_brushTransparent;
- wxPen m_pen;
- wxBrush m_brush;
- cairo_pattern_t* m_brushPattern;
- wxColour m_textColour;
+ 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
-//-----------------------------------------------------------------------------
-// wxCairoContext implementation
+// ----------------------------------------------------------------------------
+// wxCairoPenBrushBaseData implementation
//-----------------------------------------------------------------------------
-wxCairoContext::wxCairoContext( const wxWindowDC& dc )
+wxCairoPenBrushBaseData::wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer,
+ const wxColour& col,
+ bool isTransparent)
+ : wxGraphicsObjectRefData(renderer)
{
- m_context = gdk_cairo_create( dc.m_window ) ;
- PushState();
- PushState();
- m_penTransparent = true;
- m_brushTransparent = true;
- m_brushPattern = NULL ;
+ 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;
+ }
}
-wxCairoContext::~wxCairoContext()
+wxCairoPenBrushBaseData::~wxCairoPenBrushBaseData()
{
- if ( m_context )
+ if (m_bmpdata)
{
- PopState();
- PopState();
- cairo_destroy(m_context);
- if ( m_brushPattern )
- cairo_pattern_destroy(m_brushPattern);
+ // 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 wxCairoContext::Clip( const wxRegion & WXUNUSED(region) )
+void wxCairoPenBrushBaseData::InitHatchPattern(cairo_t* ctext)
{
-// TODO
+ 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 wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxCairoPenBrushBaseData::InitStipple(wxBitmap* bmp)
{
-// TODO
+ 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 wxCairoContext::ResetClip()
+void wxCairoPenBrushBaseData::InitHatch(wxHatchStyle hatchStyle)
{
-// TODO
+ // 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 wxCairoContext::StrokePath( const wxGraphicsPath *path )
+void wxCairoPenBrushBaseData::Apply( wxGraphicsContext* context )
{
- if ( m_penTransparent )
- return;
+ 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);
+}
- cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ;
- cairo_append_path(m_context,cp);
+//-----------------------------------------------------------------------------
+// wxCairoPenData implementation
+//-----------------------------------------------------------------------------
- // setup pen
+wxCairoPenData::~wxCairoPenData()
+{
+ delete[] m_userLengths;
+}
- // TODO: * m_dc->m_scaleX
- double penWidth = m_pen.GetWidth();
- if (penWidth <= 0.0)
- penWidth = 0.1;
+void wxCairoPenData::Init()
+{
+ m_lengths = NULL;
+ m_userLengths = NULL;
+ m_width = 0;
+ m_count = 0;
+}
- cairo_set_line_width(m_context,penWidth);
- cairo_set_source_rgba(m_context,m_pen.GetColour().Red()/255.0,
- m_pen.GetColour().Green()/255.0, m_pen.GetColour().Blue()/255.0,m_pen.GetColour().Alpha()/255.0);
+wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
+ : wxCairoPenBrushBaseData(renderer, pen.GetColour(), pen.IsTransparent())
+{
+ Init();
+ m_width = pen.GetWidth();
+ if (m_width <= 0.0)
+ m_width = 0.1;
- cairo_line_cap_t cap;
- switch ( m_pen.GetCap() )
+ switch ( pen.GetCap() )
{
case wxCAP_ROUND :
- cap = CAIRO_LINE_CAP_ROUND;
+ m_cap = CAIRO_LINE_CAP_ROUND;
break;
case wxCAP_PROJECTING :
- cap = CAIRO_LINE_CAP_SQUARE;
+ m_cap = CAIRO_LINE_CAP_SQUARE;
break;
case wxCAP_BUTT :
- cap = CAIRO_LINE_CAP_BUTT;
+ m_cap = CAIRO_LINE_CAP_BUTT;
break;
default :
- cap = CAIRO_LINE_CAP_BUTT;
+ m_cap = CAIRO_LINE_CAP_BUTT;
break;
}
- cairo_set_line_cap(m_context,cap);
- cairo_line_join_t join;
- switch ( m_pen.GetJoin() )
+ switch ( pen.GetJoin() )
{
case wxJOIN_BEVEL :
- join = CAIRO_LINE_JOIN_BEVEL;
+ m_join = CAIRO_LINE_JOIN_BEVEL;
break;
case wxJOIN_MITER :
- join = CAIRO_LINE_JOIN_MITER;
+ m_join = CAIRO_LINE_JOIN_MITER;
break;
case wxJOIN_ROUND :
- join = CAIRO_LINE_JOIN_ROUND;
+ m_join = CAIRO_LINE_JOIN_ROUND;
break;
default :
- join = CAIRO_LINE_JOIN_MITER;
+ m_join = CAIRO_LINE_JOIN_MITER;
break;
}
- cairo_set_line_join(m_context,join);
- int num_dashes = 0;
- const double * dashes = NULL;
- double offset = 0.0;
-
- const double dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
-
- double *userLengths = NULL;
+ const double dashUnit = m_width < 1.0 ? 1.0 : m_width;
const double dotted[] =
- {
- dashUnit , dashUnit + 2.0
- };
- const double short_dashed[] =
- {
- 9.0 , 6.0
- };
- const double dashed[] =
- {
- 19.0 , 9.0
- };
- const double dotted_dashed[] =
- {
- 9.0 , 6.0 , 3.0 , 3.0
- };
+ {
+ dashUnit , dashUnit + 2.0
+ };
+ static const double short_dashed[] =
+ {
+ 9.0 , 6.0
+ };
+ static const double dashed[] =
+ {
+ 19.0 , 9.0
+ };
+ static const double dotted_dashed[] =
+ {
+ 9.0 , 6.0 , 3.0 , 3.0
+ };
- switch ( m_pen.GetStyle() )
+ switch ( pen.GetStyle() )
{
- case wxSOLID :
+ case wxPENSTYLE_SOLID :
break;
- case wxDOT :
- dashes = dotted ;
- num_dashes = WXSIZEOF(dotted)
- ;
+ 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 :
- dashes = dotted ;
- num_dashes = WXSIZEOF(dashed);
+ case wxPENSTYLE_LONG_DASH :
+ m_lengths = dashed ;
+ m_count = WXSIZEOF(dashed);
break;
- case wxSHORT_DASH :
- dashes = dotted ;
- num_dashes = WXSIZEOF(short_dashed);
+ case wxPENSTYLE_SHORT_DASH :
+ m_lengths = short_dashed ;
+ m_count = WXSIZEOF(short_dashed);
break;
- case wxDOT_DASH :
- dashes = dotted ;
- num_dashes = WXSIZEOF(dotted_dashed);
+ case wxPENSTYLE_DOT_DASH :
+ m_lengths = dotted_dashed ;
+ m_count = WXSIZEOF(dotted_dashed);
break;
- case wxUSER_DASH :
+ case wxPENSTYLE_USER_DASH :
{
wxDash *wxdashes ;
- num_dashes = m_pen.GetDashes( &wxdashes ) ;
- if ((wxdashes != NULL) && (num_dashes > 0))
+ m_count = pen.GetDashes( &wxdashes ) ;
+ if ((wxdashes != NULL) && (m_count > 0))
{
- userLengths = new double[num_dashes] ;
- for ( int i = 0 ; i < num_dashes ; ++i )
+ m_userLengths = new double[m_count] ;
+ for ( int i = 0 ; i < m_count ; ++i )
{
- userLengths[i] = wxdashes[i] * dashUnit ;
+ m_userLengths[i] = wxdashes[i] * dashUnit ;
- if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
- userLengths[i] = dashUnit + 2.0 ;
- else if ( i % 2 == 0 && userLengths[i] < dashUnit )
- userLengths[i] = dashUnit ;
+ if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
+ m_userLengths[i] = dashUnit + 2.0 ;
+ else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
+ m_userLengths[i] = dashUnit ;
}
}
- dashes = userLengths ;
+ 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_set_dash(m_context,(double*)dashes,num_dashes,offset);
- if ( userLengths )
- delete[] userLengths;
- cairo_stroke(m_context);
- wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp);
+ cairo_t * ctext = (cairo_t*) context->GetNativeContext();
+ cairo_set_line_width(ctext,m_width);
+ 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);
}
-void wxCairoContext::FillPath( const wxGraphicsPath *path , int fillStyle )
+//-----------------------------------------------------------------------------
+// wxCairoBrushData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer )
+ : wxCairoPenBrushBaseData(renderer, wxColour(), true /* transparent */)
{
- if ( !m_brushTransparent )
- {
- cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ;
- cairo_append_path(m_context,cp);
+ Init();
+}
- if ( m_brushPattern )
- {
- cairo_set_source(m_context,m_brushPattern);
- }
- else
- {
- cairo_set_source_rgba(m_context,m_brush.GetColour().Red()/255.0,
- m_brush.GetColour().Green()/255.0,
- m_brush.GetColour().Blue()/255.0,
- m_brush.GetColour().Alpha()/255.0);
- }
+wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer,
+ const wxBrush &brush )
+ : wxCairoPenBrushBaseData(renderer, brush.GetColour(), brush.IsTransparent())
+{
+ Init();
- cairo_set_fill_rule(m_context,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
- cairo_fill(m_context);
- wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp);
+ switch ( brush.GetStyle() )
+ {
+ 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;
}
}
-wxGraphicsPath* wxCairoContext::CreatePath()
+void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops)
{
- return new wxCairoPath();
+ // loop over all the stops, they include the beginning and ending ones
+ const unsigned numStops = stops.GetCount();
+ for ( unsigned n = 0; n < numStops; n++ )
+ {
+ 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 wxCairoContext::Rotate( wxDouble angle )
+void
+wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
- cairo_rotate(m_context,angle);
+ m_pattern = cairo_pattern_create_linear(x1,y1,x2,y2);
+
+ AddGradientStops(stops);
}
-void wxCairoContext::Translate( wxDouble dx , wxDouble dy )
+void
+wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
{
- cairo_translate(m_context,dx,dy);
+ m_pattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius);
+
+ AddGradientStops(stops);
}
-void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale )
+void wxCairoBrushData::Init()
{
- cairo_scale(m_context,xScale,yScale);
- /*
- PointF penWidth( m_pen->GetWidth(), 0);
- Matrix matrix ;
- if ( !m_penTransparent )
+ m_pattern = NULL;
+ m_bmpdata = NULL;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoFontData implementation
+//-----------------------------------------------------------------------------
+
+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();
+
+#ifdef __WXMAC__
+ m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() );
+#elif defined(__WXGTK__)
+#else
+ 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__
+ if ( m_font )
+ cairo_font_face_destroy( m_font );
+#endif
+}
+
+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__
+ if (m_wxfont.IsOk())
+ {
+ // Nothing to do, the caller uses Pango layout functions to do
+ // everything.
+ return true;
+ }
+#elif defined(__WXMAC__)
+ 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;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoPathData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoPathData::wxCairoPathData( wxGraphicsRenderer* renderer, cairo_t* pathcontext)
+ : wxGraphicsPathData(renderer)
+{
+ if (pathcontext)
+ {
+ m_pathContext = pathcontext;
+ }
+ else
+ {
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1);
+ m_pathContext = cairo_create(surface);
+ cairo_surface_destroy (surface);
+ }
+}
+
+wxCairoPathData::~wxCairoPathData()
+{
+ cairo_destroy(m_pathContext);
+}
+
+wxGraphicsObjectRefData *wxCairoPathData::Clone() const
+{
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1);
+ cairo_t* pathcontext = cairo_create(surface);
+ cairo_surface_destroy (surface);
+
+ cairo_path_t* path = cairo_copy_path(m_pathContext);
+ cairo_append_path(pathcontext, path);
+ cairo_path_destroy(path);
+ return new wxCairoPathData( GetRenderer() ,pathcontext);
+}
+
+
+void* wxCairoPathData::GetNativePath() const
+{
+ return cairo_copy_path(m_pathContext) ;
+}
+
+void wxCairoPathData::UnGetNativePath(void *p) const
+{
+ cairo_path_destroy((cairo_path_t*)p);
+}
+
+//
+// The Primitives
+//
+
+void wxCairoPathData::MoveToPoint( wxDouble x , wxDouble y )
+{
+ cairo_move_to(m_pathContext,x,y);
+}
+
+void wxCairoPathData::AddLineToPoint( wxDouble x , wxDouble y )
+{
+ cairo_line_to(m_pathContext,x,y);
+}
+
+void wxCairoPathData::AddPath( const wxGraphicsPathData* path )
+{
+ cairo_path_t* p = (cairo_path_t*)path->GetNativePath();
+ cairo_append_path(m_pathContext, p);
+ UnGetNativePath(p);
+}
+
+void wxCairoPathData::CloseSubpath()
+{
+ cairo_close_path(m_pathContext);
+}
+
+void wxCairoPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
+{
+ cairo_curve_to(m_pathContext,cx1,cy1,cx2,cy2,x,y);
+}
+
+// gets the last point of the current path, (0,0) if not yet set
+void wxCairoPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
+{
+ double dx,dy;
+ cairo_get_current_point(m_pathContext,&dx,&dy);
+ if (x)
+ *x = dx;
+ if (y)
+ *y = dy;
+}
+
+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)
+ // TODO make this interpretation dependent of the
+ // real device trans
+ if ( clockwise||(endAngle-startAngle)>=2*M_PI)
+ cairo_arc(m_pathContext,x,y,r,startAngle,endAngle);
+ else
+ cairo_arc_negative(m_pathContext,x,y,r,startAngle,endAngle);
+}
+
+// transforms each point of this path by the 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
+{
+ double x1,y1,x2,y2;
+
+ cairo_stroke_extents( m_pathContext, &x1, &y1, &x2, &y2 );
+ if ( x2 < x1 )
+ {
+ *x = x2;
+ *w = x1-x2;
+ }
+ else
+ {
+ *x = x1;
+ *w = x2-x1;
+ }
+
+ if( y2 < y1 )
+ {
+ *y = y2;
+ *h = y1-y2;
+ }
+ else
+ {
+ *y = y1;
+ *h = y2-y1;
+ }
+}
+
+bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
+{
+ 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;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoMatrixData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix )
+ : wxGraphicsMatrixData(renderer)
+{
+ if ( matrix )
+ m_matrix = *matrix;
+}
+
+wxCairoMatrixData::~wxCairoMatrixData()
+{
+ // nothing to do
+}
+
+wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
+{
+ return new wxCairoMatrixData(GetRenderer(),&m_matrix);
+}
+
+// concatenates the matrix
+void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
+{
+ 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)
+{
+ cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty);
+}
+
+// gets the component valuess of the matrix
+void wxCairoMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c,
+ wxDouble* d, wxDouble* tx, wxDouble* ty) const
+{
+ if (a) *a = m_matrix.xx;
+ if (b) *b = m_matrix.yx;
+ if (c) *c = m_matrix.xy;
+ if (d) *d = m_matrix.yy;
+ if (tx) *tx= m_matrix.x0;
+ if (ty) *ty= m_matrix.y0;
+}
+
+// makes this the inverse matrix
+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
+{
+ 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 &&
+ m_matrix.y0 == tm->y0 ) ;
+}
+
+// return true if this is the identity matrix
+bool wxCairoMatrixData::IsIdentity() const
+{
+ return ( m_matrix.xx == 1 && m_matrix.yy == 1 &&
+ m_matrix.yx == 0 && m_matrix.xy == 0 && m_matrix.x0 == 0 && m_matrix.y0 == 0);
+}
+
+//
+// transformation
+//
+
+// add the translation to this matrix
+void wxCairoMatrixData::Translate( wxDouble dx , wxDouble dy )
+{
+ cairo_matrix_translate( &m_matrix, dx, dy) ;
+}
+
+// add the scale to this matrix
+void wxCairoMatrixData::Scale( wxDouble xScale , wxDouble yScale )
+{
+ cairo_matrix_scale( &m_matrix, xScale, yScale) ;
+}
+
+// add the rotation to this matrix (radians)
+void wxCairoMatrixData::Rotate( wxDouble angle )
+{
+ cairo_matrix_rotate( &m_matrix, angle) ;
+}
+
+//
+// apply the transforms
+//
+
+// applies that matrix to the point
+void wxCairoMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
+{
+ double lx = *x, ly = *y ;
+ cairo_matrix_transform_point( &m_matrix, &lx, &ly);
+ *x = lx;
+ *y = ly;
+}
+
+// applies the matrix except for translations
+void wxCairoMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
+{
+ double lx = *dx, ly = *dy ;
+ cairo_matrix_transform_distance( &m_matrix, &lx, &ly);
+ *dx = lx;
+ *dy = ly;
+}
+
+// returns the native representation
+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 ) :
+ 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++)
{
- m_context->GetTransform(&matrix);
- matrix.TransformVectors(&penWidth);
+ 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);
}
- m_context->ScaleTransform(xScale,yScale);
- if ( !m_penTransparent )
+ }
+ 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++)
{
- m_context->GetTransform(&matrix);
- matrix.Invert();
- matrix.TransformVectors(&penWidth) ;
- m_pen->SetWidth( sqrt( penWidth.X*penWidth.X + penWidth.Y*penWidth.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.GetMaskBitmap();
+ 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__
+ CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
+ cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
+ Init( cairo_create( surface ) );
+ cairo_surface_destroy( surface );
+#endif
+}
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc )
+: wxGraphicsContext(renderer)
+{
+ 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__
+ CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
+ cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
+ Init( cairo_create( surface ) );
+ cairo_surface_destroy( surface );
+#endif
+}
+
+#ifdef __WXGTK20__
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window )
+: wxGraphicsContext(renderer)
+{
+ 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)
+#ifdef __WXMSW__
+ , m_mswWindowHDC(GetHwndOf(window))
+#endif
+{
+ m_enableOffset = true;
+#ifdef __WXGTK__
+ // something along these lines (copied from dcclient)
+
+ // Some controls don't have m_wxwindow - like wxStaticBox, but the user
+ // code should still be able to create wxClientDCs for them, so we will
+ // use the parent window here then.
+ if (window->m_wxwindow == NULL)
+ {
+ window = window->GetParent();
+ }
+
+ 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()
+{
+ if ( m_context )
+ {
+ PopState();
+ PopState();
+ cairo_destroy(m_context);
+ }
+#ifdef __WXMSW__
+ if ( m_mswSurface )
+ cairo_surface_destroy(m_mswSurface);
+#endif
+}
+
+void wxCairoContext::Init(cairo_t *context)
+{
+ m_context = context ;
+ PushState();
+ PushState();
+}
+
+
+void wxCairoContext::Clip( const wxRegion& region )
+{
+ // Create a path with all the rectangles in the region
+ wxGraphicsPath path = GetRenderer()->CreatePath();
+ wxRegionIterator ri(region);
+ while (ri)
+ {
+ 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);
+}
+
+void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ // Create a path with this rectangle
+ wxGraphicsPath path = GetRenderer()->CreatePath();
+ path.AddRectangle(x,y,w,h);
+
+ // 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);
+}
+
+void wxCairoContext::ResetClip()
+{
+ cairo_reset_clip(m_context);
+}
+
+
+void wxCairoContext::StrokePath( const wxGraphicsPath& path )
+{
+ if ( !m_pen.IsNull() )
+ {
+ 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);
+ cairo_stroke(m_context);
+ path.UnGetNativePath(cp);
+ }
+}
+
+void wxCairoContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
+{
+ if ( !m_brush.IsNull() )
+ {
+ wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
+ cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
+ cairo_append_path(m_context,cp);
+ ((wxCairoBrushData*)m_brush.GetRefData())->Apply(this);
+ cairo_set_fill_rule(m_context,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
+ cairo_fill(m_context);
+ path.UnGetNativePath(cp);
+ }
+}
+
+void wxCairoContext::Rotate( wxDouble angle )
+{
+ cairo_rotate(m_context,angle);
+}
+
+void wxCairoContext::Translate( wxDouble dx , wxDouble dy )
+{
+ cairo_translate(m_context,dx,dy);
+}
+
+void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale )
+{
+ cairo_scale(m_context,xScale,yScale);
+}
+
+// concatenates this transform with the current transform of this context
+void wxCairoContext::ConcatTransform( const wxGraphicsMatrix& matrix )
+{
+ cairo_transform(m_context,(const cairo_matrix_t *) matrix.GetNativeMatrix());
+}
+
+// sets the transform of this context
+void wxCairoContext::SetTransform( const wxGraphicsMatrix& matrix )
+{
+ cairo_set_matrix(m_context,(const cairo_matrix_t*) matrix.GetNativeMatrix());
+}
+
+// gets the matrix of this context
+wxGraphicsMatrix wxCairoContext::GetTransform() const
+{
+ wxGraphicsMatrix matrix = CreateMatrix();
+ cairo_get_matrix(m_context,(cairo_matrix_t*) matrix.GetNativeMatrix());
+ return matrix;
}
+
+
void wxCairoContext::PushState()
{
cairo_save(m_context);
cairo_restore(m_context);
}
-void wxCairoContext::SetTextColor( const wxColour &col )
+void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- m_textColour = col;
+ wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
+ DrawBitmap(bitmap, x, y, w, h);
+
}
-void wxCairoContext::SetPen( const wxPen &pen )
+void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- m_pen = pen ;
- m_penTransparent = pen.GetStyle() == wxTRANSPARENT;
- if ( m_penTransparent )
- return;
+ PushState();
- /*
-
- 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 );
- }
-
- }
- break;
- default :
- if ( pen.GetStyle() >= wxFIRST_HATCH && pen.GetStyle() <= wxLAST_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 );
- }
- break;
- }
- if ( dashStyle != DashStyleSolid )
- m_pen->SetDashStyle(dashStyle);
- */
+ // 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.
+ 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, size.GetWidth(), size.GetHeight());
+ // fill the rectangle using the pattern
+ cairo_fill(m_context);
+
+ PopState();
+}
+
+void wxCairoContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ // An icon is a bitmap on wxGTK, so do this the easy way. When we want to
+ // start using the Cairo backend on other platforms then we may need to
+ // fiddle with this...
+ DrawBitmap(icon, x, y, w, h);
}
-void wxCairoContext::SetBrush( const wxBrush &brush )
+
+void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y)
{
- m_brush = brush;
- if (m_brushPattern)
+ wxCHECK_RET( !m_font.IsNull(),
+ wxT("wxCairoContext::DrawText - no valid font set") );
+
+ if ( str.empty())
+ return;
+
+ const wxCharBuffer data = str.utf8_str();
+ if ( !data )
+ return;
+
+ if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) )
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern = NULL;
+#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
}
- m_brushTransparent = brush.GetStyle() == wxTRANSPARENT;
- if ( m_brushTransparent )
+ // 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);
+
+ 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 )
+ *height = 0;
+ if ( descent )
+ *descent = 0;
+ if ( externalLeading )
+ *externalLeading = 0;
+
+ if ( str.empty())
return;
- /*
- wxDELETE(m_brush);
-
- if ( brush.GetStyle() == wxSOLID)
+
+ 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 )
{
- m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
- brush.GetColour().Green() , brush.GetColour().Blue() ) );
+ return;
}
- else if ( brush.IsHatch() )
+ 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)
{
- 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 );
+ 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);
}
- else
+ g_object_unref (layout);
+ return;
+#endif
+ }
+
+ if (width)
+ {
+ const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
+ cairo_text_extents_t te;
+ cairo_text_extents(m_context, buf, &te);
+ *width = te.width;
+ }
+
+ if (height || descent || externalLeading)
+ {
+ 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 ) )
{
- 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);
- }
+ // some backends are broken re height ... (eg currently ATSUI)
+ fe.height = fe.ascent + fe.descent;
}
- */
+
+ if (height)
+ *height = fe.height;
+ if ( descent )
+ *descent = fe.descent;
+ if ( externalLeading )
+ *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent));
+ }
+}
+
+void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
+{
+ widths.Empty();
+ 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()
+{
+ return m_context;
}
-void wxCairoContext::SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2)
+bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias)
{
- if ( m_brushPattern )
+ if (m_antialias == antialias)
+ return true;
+
+ m_antialias = antialias;
+
+ cairo_antialias_t antialiasMode;
+ switch (antialias)
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern=NULL;
+ case wxANTIALIAS_DEFAULT:
+ antialiasMode = CAIRO_ANTIALIAS_DEFAULT;
+ break;
+ case wxANTIALIAS_NONE:
+ antialiasMode = CAIRO_ANTIALIAS_NONE;
+ break;
+ default:
+ return false;
}
-
- m_brushTransparent = false;
- 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"));
+ cairo_set_antialias(m_context, antialiasMode);
+ return true;
}
-void wxCairoContext::SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation))
{
- if ( m_brushPattern )
+ // placeholder
+ return false;
+}
+
+bool wxCairoContext::SetCompositionMode(wxCompositionMode op)
+{
+ if ( m_composition == op )
+ return true;
+
+ m_composition = op;
+ cairo_operator_t cop;
+ switch (op)
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern=NULL;
+ 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;
}
-
- m_brushTransparent = false;
- 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"));
- }
+ cairo_set_operator(m_context, cop);
+ return true;
+}
-void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxCairoContext::BeginLayer(wxDouble opacity)
{
- /*
- Bitmap* image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
- delete image ;
- */
+ m_layerOpacities.push_back(opacity);
+ cairo_push_group(m_context);
}
-void wxCairoContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxCairoContext::EndLayer()
{
- /*
- Bitmap* image = Bitmap::FromHICON((HICON)icon.GetHICON());
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
- delete image ;
- */
+ 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
+//-----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxCairoRenderer : public wxGraphicsRenderer
+{
+public :
+ wxCairoRenderer() {}
+
+ virtual ~wxCairoRenderer() {}
+
+ // Context
+
+ 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,
+ wxDouble tx=0.0, wxDouble ty=0.0);
+
+
+ virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
+
+ virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
+
+ virtual wxGraphicsBrush
+ CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops);
+
+ virtual wxGraphicsBrush
+ CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops);
+
+ // 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 );
+
+protected :
+ bool EnsureIsLoaded();
+ void Load();
+ void Unload();
+ friend class wxCairoModule;
+private :
+ int m_loaded;
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
+} ;
+
+//-----------------------------------------------------------------------------
+// wxCairoRenderer implementation
+//-----------------------------------------------------------------------------
+
+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;
+
+bool wxCairoRenderer::EnsureIsLoaded()
+{
+#ifndef __WXGTK__
+ Load();
+ return wxCairoInit();
+#else
+ return true;
+#endif
}
+void wxCairoRenderer::Load()
+{
+ wxCairoInit();
+}
-void wxCairoContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
+void wxCairoRenderer::Unload()
{
- if ( str.IsEmpty())
- return ;
- cairo_move_to(m_context,x,y);
- const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
+ wxCairoCleanUp();
+}
- cairo_set_source_rgba(m_context,m_textColour.Red()/255.0,
- m_textColour.Green()/255.0, m_textColour.Blue()/255.0,m_textColour.Alpha()/255.0);
- cairo_show_text(m_context,buf);
+// call EnsureIsLoaded() and return returnOnFail value if it fails
+#define ENSURE_LOADED_OR_RETURN(returnOnFail) \
+ if ( !EnsureIsLoaded() ) \
+ return (returnOnFail)
- // TODO m_backgroundMode == wxSOLID
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc)
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxCairoContext(this,dc);
}
-void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
- wxDouble *descent, wxDouble *externalLeading ) const
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
{
- /*
- wxWCharBuffer s = str.wc_str( *wxConvUI );
- FontFamily ffamily ;
-
- m_font->GetFamily(&ffamily) ;
-
- REAL factorY = m_context->GetDpiY() / 72.0 ;
-
- REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
- REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
- REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
-
- if ( height )
- *height = rHeight * factorY + 0.5 ;
- if ( descent )
- *descent = rDescent * factorY + 0.5 ;
- if ( externalLeading )
- *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ;
- // measuring empty strings is not guaranteed, so do it by hand
- if ( str.IsEmpty())
- {
- if ( width )
- *width = 0 ;
- }
- else
- {
- // MeasureString does return a rectangle that is way too large, so it is
- // not usable here
- RectF layoutRect(0,0, 100000.0f, 100000.0f);
- StringFormat strFormat;
- CharacterRange strRange(0,wcslen(s));
- strFormat.SetMeasurableCharacterRanges(1,&strRange);
- Region region ;
- m_context->MeasureCharacterRanges(s, -1 , m_font,layoutRect, &strFormat,1,®ion) ;
- RectF bbox ;
- region.GetBounds(&bbox,m_context);
- if ( width )
- *width = bbox.GetRight()-bbox.GetLeft()+0.5;
- }
- */
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxCairoContext(this,dc);
}
-void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc)
{
- widths.Empty();
- widths.Add(0, text.length());
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxCairoContext(this, dc);
+}
- if (text.empty())
- return;
- /*
- wxWCharBuffer ws = text.wc_str( *wxConvUI );
- size_t len = wcslen( ws ) ;
- wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations"));
-
- RectF layoutRect(0,0, 100000.0f, 100000.0f);
- StringFormat strFormat;
-
- CharacterRange* ranges = new CharacterRange[len] ;
- Region* regions = new Region[len];
- for( int i = 0 ; i < len ; ++i)
- {
- ranges[i].First = i ;
- ranges[i].Length = 1 ;
- }
- strFormat.SetMeasurableCharacterRanges(len,ranges);
- m_context->MeasureCharacterRanges(ws, -1 , m_font,layoutRect, &strFormat,1,regions) ;
-
- RectF bbox ;
- for ( int i = 0 ; i < len ; ++i)
- {
- regions[i].GetBounds(&bbox,m_context);
- widths[i] = bbox.GetRight()-bbox.GetLeft();
- }
- */
+#ifdef __WXMSW__
+#if wxUSE_ENH_METAFILE
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxEnhMetaFileDC& WXUNUSED(dc) )
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ 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
}
-void wxCairoContext::SetFont( const wxFont &font )
+
+wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window )
{
- cairo_select_font_face(m_context,font.GetFaceName().mb_str(wxConvUTF8),
- font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL,
- font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL);
+ ENSURE_LOADED_OR_RETURN(NULL);
+#ifdef __WXGTK__
+ return new wxCairoContext(this, static_cast<GdkWindow*>(window));
+#else
+ wxUnusedVar(window);
+ return NULL;
+#endif
+}
- cairo_set_font_size(m_context,font.GetPointSize());
- // TODO UNDERLINE
- // TODO FIX SIZE
+#if wxUSE_IMAGE
+wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image)
+{
+ return new wxCairoImageContext(this, image);
}
+#endif // wxUSE_IMAGE
-void * wxCairoContext::GetNativeContext()
+wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext()
{
- return m_context;
+ ENSURE_LOADED_OR_RETURN(NULL);
+#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 );
+}
+
+// Path
+
+wxGraphicsPath wxCairoRenderer::CreatePath()
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath);
+ wxGraphicsPath path;
+ path.SetRefData( new wxCairoPathData(this) );
+ return path;
+}
+
+
+// Matrix
+
+wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
+
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix);
+ wxGraphicsMatrix 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)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
+ if ( !pen.IsOk() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
+ return wxNullGraphicsPen;
+ else
+ {
+ wxGraphicsPen p;
+ p.SetRefData(new wxCairoPenData( this, pen ));
+ return p;
+ }
+}
+
+wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ if ( !brush.IsOk() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT )
+ return wxNullGraphicsBrush;
+ else
+ {
+ wxGraphicsBrush p;
+ p.SetRefData(new wxCairoBrushData( this, brush ));
+ return p;
+ }
+}
+
+wxGraphicsBrush
+wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ wxGraphicsBrush p;
+ wxCairoBrushData* d = new wxCairoBrushData( this );
+ d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
+ p.SetRefData(d);
+ return p;
+}
+
+wxGraphicsBrush
+wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble r,
+ const wxGraphicsGradientStops& stops)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ wxGraphicsBrush p;
+ wxCairoBrushData* d = new wxCairoBrushData( this );
+ d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops);
+ p.SetRefData(d);
+ return p;
+}
+
+wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+ if ( font.IsOk() )
+ {
+ wxGraphicsFont p;
+ p.SetRefData(new wxCairoFontData( this , font, col ));
+ return p;
+ }
+ else
+ return wxNullGraphicsFont;
+}
+
+wxGraphicsFont
+wxCairoRenderer::CreateFont(double sizeInPixels,
+ const wxString& facename,
+ int flags,
+ const wxColour& col)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+
+ wxGraphicsFont font;
+ font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col));
+ return font;
+}
+
+wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( bmp.IsOk() )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxCairoBitmapData( this , bmp ));
+ return p;
+ }
+ else
+ return wxNullGraphicsBitmap;
+}
+
+#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)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullImage);
+
+ const wxCairoBitmapData* const
+ data = static_cast<wxCairoBitmapData*>(bmp.GetGraphicsData());
+
+ return data ? data->ConvertToImage() : wxNullImage;
+}
+
+#endif // wxUSE_IMAGE
+
+
+wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( bitmap != NULL )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap ));
+ return p;
+ }
+ else
+ return wxNullGraphicsBitmap;
+}
+
+wxGraphicsBitmap
+wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap),
+ wxDouble WXUNUSED(x),
+ wxDouble WXUNUSED(y),
+ wxDouble WXUNUSED(w),
+ wxDouble WXUNUSED(h))
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
+ return wxNullGraphicsBitmap;
}
-wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc )
+wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
{
- return new wxCairoContext(dc);
+ return &gs_cairoGraphicsRenderer;
}
-wxGraphicsContext* wxGraphicsContext::Create( wxWindow * window )
+#else // !wxUSE_CAIRO
+
+wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
{
- return NULL; // TODO
+ return NULL;
}
-wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
+#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 NULL; // TODO
+ return GetCairoRenderer();
}
+#endif // !(__WXMSW__ || __WXOSX__)
-#endif // wxUSE_GRAPHICS_CONTEXT
+#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff