#include "wx/wxprec.h"
-#include "wx/dc.h"
-
#ifdef __BORLANDC__
#pragma hdrstop
#endif
+#if wxUSE_GRAPHICS_CONTEXT
+
+#include "wx/dc.h"
+
#ifndef WX_PRECOMP
#include "wx/image.h"
#include "wx/window.h"
#include "wx/module.h"
#endif
-#include "wx/graphics.h"
-
-#if wxUSE_GRAPHICS_CONTEXT
+#include "wx/private/graphics.h"
+#include "wx/rawbmp.h"
#include <vector>
#endif
#include <cairo.h>
+#ifdef __WXGTK__
#include <gtk/gtk.h>
+#include "wx/fontutil.h"
+#include "wx/gtk/dc.h"
+#endif
+
+#ifdef __WXMSW__
+#include <cairo-win32.h>
+#endif
+
+#ifdef __WXMAC__
+#include "wx/mac/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();
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, int 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;
+
+ // makes this the inverse matrix
+ virtual void Invert();
-void wxCairoPath::MoveToPoint( wxDouble x , wxDouble y )
-{
- cairo_move_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::AddLineToPoint( wxDouble x , wxDouble y )
-{
- cairo_line_to(m_pathContext,x,y);
-}
+ // return true if this is the identity matrix
+ virtual bool IsIdentity() const;
-void wxCairoPath::CloseSubpath()
-{
- cairo_close_path(m_pathContext);
-}
+ //
+ // transformation
+ //
-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);
-}
+ // add the translation to this matrix
+ virtual void Translate( wxDouble dx , wxDouble dy );
-// gets the last point of the current path, (0,0) if not yet set
-void wxCairoPath::GetCurrentPoint( wxDouble& x, wxDouble&y)
-{
- double dx,dy;
- cairo_get_current_point(m_pathContext,&dx,&dy);
- x = dx;
- y = 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;
-void wxCairoPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
+ // returns the native representation
+ virtual void * GetNativeMatrix() const;
+private:
+ cairo_matrix_t m_matrix ;
+} ;
+
+class WXDLLIMPEXP_CORE wxCairoPenData : public wxGraphicsObjectRefData
{
- // 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;
+
+ double m_red;
+ double m_green;
+ double m_blue;
+ double m_alpha;
+
+ cairo_line_cap_t m_cap;
+ cairo_line_join_t m_join;
+
+ int m_count;
+ const double *m_lengths;
+ double *m_userLengths;
+
+ wxPen m_pen;
+};
-/*
-void wxCairoPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData
{
- 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 );
+ ~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 );
+
+protected:
+ virtual void Init();
+
+private :
+ double m_red;
+ double m_green;
+ double m_blue;
+ double m_alpha;
+
+ cairo_pattern_t* m_brushPattern;
+};
+
+class wxCairoFontData : public wxGraphicsObjectRefData
{
-// CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
-}
-
-*/
+public:
+ wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
+ ~wxCairoFontData();
-class WXDLLEXPORT wxCairoContext : public wxGraphicsContext
+ virtual void Apply( wxGraphicsContext* context );
+#ifdef __WXGTK__
+ const PangoFontDescription* GetFont() const { return m_font; }
+#endif
+private :
+ 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__)
+ PangoFontDescription* m_font;
+#else
+ wxCharBuffer m_fontName;
+ cairo_font_slant_t m_slant;
+ cairo_font_weight_t m_weight;
+#endif
+};
+
+class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
{
DECLARE_NO_COPY_CLASS(wxCairoContext)
public:
- wxCairoContext( const wxWindowDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc );
+#ifdef __WXGTK__
+ wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable );
+#endif
+ wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context );
+ wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window);
wxCairoContext();
virtual ~wxCairoContext();
+ virtual bool ShouldOffset() const
+ {
+ 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 );
// clips drawings to the rect
virtual void * GetNativeContext();
- virtual void StrokePath( const wxGraphicsPath *p );
- virtual void FillPath( const wxGraphicsPath *p , int fillStyle = wxWINDING_RULE );
-
- 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 StrokePath( const wxGraphicsPath& p );
+ virtual void FillPath( const wxGraphicsPath& p , int 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 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 SetTextColour( 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;
private:
+ void Init(cairo_t *context);
+
cairo_t* m_context;
- bool m_penTransparent;
- bool m_brushTransparent;
-
- wxPen m_pen;
- wxBrush m_brush;
- cairo_pattern_t* m_brushPattern;
- wxColour m_textColour;
};
-
-
-
//-----------------------------------------------------------------------------
-// wxCairoContext implementation
+// wxCairoPenData implementation
//-----------------------------------------------------------------------------
-wxCairoContext::wxCairoContext( const wxWindowDC& dc )
-{
- m_context = gdk_cairo_create( dc.m_window ) ;
- PushState();
- PushState();
- m_penTransparent = true;
- m_brushTransparent = true;
- m_brushPattern = NULL ;
-}
-
-wxCairoContext::~wxCairoContext()
-{
- if ( m_context )
- {
- PopState();
- PopState();
- cairo_destroy(m_context);
- if ( m_brushPattern )
- cairo_pattern_destroy(m_brushPattern);
- }
-}
-
-
-void wxCairoContext::Clip( const wxRegion & WXUNUSED(region) )
-{
-// TODO
-}
-
-void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+wxCairoPenData::~wxCairoPenData()
{
-// TODO
+ delete[] m_userLengths;
}
-void wxCairoContext::ResetClip()
+void wxCairoPenData::Init()
{
-// TODO
+ m_lengths = NULL;
+ m_userLengths = NULL;
+ m_width = 0;
+ m_count = 0;
}
+wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
+: wxGraphicsObjectRefData(renderer)
+{
+ Init();
+ m_pen = pen;
+ m_width = m_pen.GetWidth();
+ if (m_width <= 0.0)
+ m_width = 0.1;
-void wxCairoContext::StrokePath( const wxGraphicsPath *path )
-{
- if ( m_penTransparent )
- return;
-
- cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ;
- cairo_append_path(m_context,cp);
-
- // setup pen
-
- // TODO: * m_dc->m_scaleX
- double penWidth = m_pen.GetWidth();
- if (penWidth <= 0.0)
- penWidth = 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;
- 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);
-
- cairo_line_cap_t cap;
switch ( m_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() )
{
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() )
{
break;
case wxDOT :
- dashes = dotted ;
- num_dashes = WXSIZEOF(dotted)
- ;
+ 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);
+ m_lengths = dashed ;
+ m_count = WXSIZEOF(dashed);
break;
case wxSHORT_DASH :
- dashes = dotted ;
- num_dashes = WXSIZEOF(short_dashed);
+ m_lengths = short_dashed ;
+ m_count = WXSIZEOF(short_dashed);
break;
case wxDOT_DASH :
- dashes = dotted ;
- num_dashes = WXSIZEOF(dotted_dashed);
+ m_lengths = dotted_dashed ;
+ m_count = WXSIZEOF(dotted_dashed);
break;
case wxUSER_DASH :
{
wxDash *wxdashes ;
- num_dashes = m_pen.GetDashes( &wxdashes ) ;
- if ((wxdashes != NULL) && (num_dashes > 0))
+ m_count = m_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 );
- }
+ 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;
if ( m_pen.GetStyle() >= wxFIRST_HATCH && m_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 )
+ 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;
}
+}
- cairo_set_dash(m_context,(double*)dashes,num_dashes,offset);
- if ( userLengths )
- delete[] userLengths;
- cairo_stroke(m_context);
- wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp);
+void wxCairoPenData::Apply( wxGraphicsContext* 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);
}
-void wxCairoContext::FillPath( const wxGraphicsPath *path , int fillStyle )
+//-----------------------------------------------------------------------------
+// wxCairoBrushData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer )
+ : wxGraphicsObjectRefData( renderer )
{
- 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 )
+ : wxGraphicsObjectRefData(renderer)
+{
+ 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 ;
- 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);
}
+ m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
+ brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent );
+ }
+ else
+ {
+ wxBitmap* bmp = brush.GetStipple();
+ if ( bmp && bmp->Ok() )
+ {
+ wxDELETE( m_brushImage );
+ m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
+ m_brush = new TextureBrush(m_brushImage);
+ }
+ }
+ */
}
-wxGraphicsPath* wxCairoContext::CreatePath()
+wxCairoBrushData::~wxCairoBrushData ()
{
- return new wxCairoPath();
+ if (m_brushPattern)
+ cairo_pattern_destroy(m_brushPattern);
}
-void wxCairoContext::Rotate( wxDouble angle )
+void wxCairoBrushData::Apply( wxGraphicsContext* context )
{
- cairo_rotate(m_context,angle);
+ cairo_t * ctext = (cairo_t*) context->GetNativeContext();
+ if ( m_brushPattern )
+ {
+ cairo_set_source(ctext,m_brushPattern);
+ }
+ else
+ {
+ cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
+ }
}
-void wxCairoContext::Translate( wxDouble dx , wxDouble dy )
+void wxCairoBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2 )
{
- cairo_translate(m_context,dx,dy);
+ 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"));
}
-void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale )
+void wxCairoBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor )
{
- cairo_scale(m_context,xScale,yScale);
- /*
- PointF penWidth( m_pen->GetWidth(), 0);
- Matrix matrix ;
- if ( !m_penTransparent )
- {
- m_context->GetTransform(&matrix);
- matrix.TransformVectors(&penWidth);
- }
- m_context->ScaleTransform(xScale,yScale);
- if ( !m_penTransparent )
- {
- m_context->GetTransform(&matrix);
- matrix.Invert();
- matrix.TransformVectors(&penWidth) ;
- m_pen->SetWidth( sqrt( penWidth.X*penWidth.X + penWidth.Y*penWidth.Y));
- }
- */
+ 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"));
}
-void wxCairoContext::PushState()
+void wxCairoBrushData::Init()
{
- cairo_save(m_context);
+ m_brushPattern = NULL;
}
-void wxCairoContext::PopState()
+//-----------------------------------------------------------------------------
+// wxCairoFontData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font,
+ const wxColour& col ) : wxGraphicsObjectRefData(renderer)
{
- cairo_restore(m_context);
+ m_red = col.Red()/255.0;
+ m_green = col.Green()/255.0;
+ m_blue = col.Blue()/255.0;
+ m_alpha = col.Alpha()/255.0;
+ m_size = font.GetPointSize();
+
+#ifdef __WXMAC__
+ m_font = cairo_atsui_font_face_create_for_atsu_font_id( font.MacGetATSUFontID() );
+#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;
+#endif
}
-void wxCairoContext::SetTextColour( const wxColour &col )
+wxCairoFontData::~wxCairoFontData()
{
- m_textColour = col;
+#ifdef __WXMAC__
+ cairo_font_face_destroy( m_font );
+#elif defined(__WXGTK__)
+ pango_font_description_free( m_font );
+#else
+#endif
}
-void wxCairoContext::SetPen( const wxPen &pen )
+void wxCairoFontData::Apply( wxGraphicsContext* context )
{
- m_pen = pen ;
- m_penTransparent = pen.GetStyle() == wxTRANSPARENT;
- if ( m_penTransparent )
- return;
-
- /*
-
- 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);
- */
+ 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
+#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 );
+#endif
}
-void wxCairoContext::SetBrush( const wxBrush &brush )
+//-----------------------------------------------------------------------------
+// wxCairoPathData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoPathData::wxCairoPathData( wxGraphicsRenderer* renderer, cairo_t* pathcontext)
+ : wxGraphicsPathData(renderer)
{
- m_brush = brush;
- if (m_brushPattern)
+ if (pathcontext)
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern = NULL;
+ 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);
}
- m_brushTransparent = brush.GetStyle() == wxTRANSPARENT;
+}
- if ( m_brushTransparent )
- return;
- /*
- wxDELETE(m_brush);
-
- 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
- {
- 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);
- }
- }
- */
+wxCairoPathData::~wxCairoPathData()
+{
+ cairo_destroy(m_pathContext);
}
-void wxCairoContext::SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2)
+wxGraphicsObjectRefData *wxCairoPathData::Clone() const
{
- if ( m_brushPattern )
+ 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 )
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern=NULL;
+ *x = x2;
+ *w = x1-x2;
+ }
+ else
+ {
+ *x = x1;
+ *w = x2-x1;
}
- 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"));
+ if( y2 < y1 )
+ {
+ *y = y2;
+ *h = y1-y2;
+ }
+ else
+ {
+ *y = y1;
+ *h = y2-y1;
+ }
+}
+
+bool wxCairoPathData::Contains( wxDouble x, wxDouble y, int WXUNUSED(fillStyle) ) const
+{
+ return cairo_in_stroke( m_pathContext, x, y) != 0;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoMatrixData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix )
+ : wxGraphicsMatrixData(renderer)
+{
+ if ( matrix )
+ m_matrix = *matrix;
}
-void wxCairoContext::SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+wxCairoMatrixData::~wxCairoMatrixData()
{
- if ( m_brushPattern )
+ // 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;
+}
+
+//-----------------------------------------------------------------------------
+// wxCairoContext implementation
+//-----------------------------------------------------------------------------
+
+class wxCairoOffsetHelper
+{
+public :
+ wxCairoOffsetHelper( cairo_t* ctx , bool offset )
{
- cairo_pattern_destroy(m_brushPattern);
- m_brushPattern=NULL;
+ 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 wxWindowDC& dc )
+: wxGraphicsContext(renderer)
+{
+#ifdef __WXGTK__
+ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
+ Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+#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 ) );
+ cairo_surface_destroy( surface );
+#endif
+}
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc )
+: wxGraphicsContext(renderer)
+{
+#ifdef __WXGTK__
+ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
+ Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+#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 ) );
+ cairo_surface_destroy( surface );
+#endif
+}
+
+#ifdef __WXGTK__
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable )
+: wxGraphicsContext(renderer)
+{
+ Init( gdk_cairo_create( drawable ) );
+}
+#endif
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context )
+: wxGraphicsContext(renderer)
+{
+ Init( context );
+}
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window)
+: wxGraphicsContext(renderer)
+{
+#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()));
+#endif
+}
+
+wxCairoContext::~wxCairoContext()
+{
+ if ( m_context )
+ {
+ PopState();
+ PopState();
+ cairo_destroy(m_context);
+ }
+}
+
+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;
}
- 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"));
- }
+ // 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 , int 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);
+}
+
+void wxCairoContext::PopState()
+{
+ cairo_restore(m_context);
+}
void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- /*
- 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 ;
- */
+ wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
+
+ 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);
+ }
+ }
+
+
+ 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);
+
+ // prepare to draw the image
+ cairo_translate(m_context, x, y);
+ 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);
+ // 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::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- /*
- Bitmap* image = Bitmap::FromHICON((HICON)icon.GetHICON());
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
- delete image ;
- */
+ // 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::DrawText( const wxString &str, wxDouble x, wxDouble y )
{
- if ( str.IsEmpty())
- return ;
- cairo_move_to(m_context,x,y);
- const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
+ if ( m_font.IsNull() || str.empty())
+ return;
- 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);
+#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);
+
+ 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);
-
- // TODO m_backgroundMode == wxSOLID
+#endif
}
void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const
{
- /*
- wxWCharBuffer s = str.wc_str( *wxConvUI );
- FontFamily ffamily ;
+ if ( width )
+ *width = 0;
+ if ( height )
+ *height = 0;
+ if ( descent )
+ *descent = 0;
+ if ( externalLeading )
+ *externalLeading = 0;
+
+ if ( m_font.IsNull() || 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 )
+ {
+ return;
+ }
+ 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)
+ {
+ 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);
- 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
+ // some backends have negative descents
+
+ if ( fe.descent < 0 )
+ fe.descent = -fe.descent;
+
+ if ( fe.height < (fe.ascent + fe.descent ) )
{
- // 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;
+ // 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));
+ }
+#endif
}
void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
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();
- }
- */
+
+ // TODO
}
-void wxCairoContext::SetFont( const wxFont &font )
+void * wxCairoContext::GetNativeContext()
{
- 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);
+ return m_context;
+}
+
+//-----------------------------------------------------------------------------
+// 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 * CreateContextFromNativeContext( void * context );
+
+ virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
+
+ virtual wxGraphicsContext * CreateContext( wxWindow* window );
+
+ virtual wxGraphicsContext * CreateMeasuringContext();
+
+ // Path
+
+ virtual wxGraphicsPath CreatePath();
+
+ // Matrix
+
+ virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ wxDouble tx=0.0, wxDouble ty=0.0);
+
+
+ virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
+
+ virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
+
+ // 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) ;
+
+ // 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) ;
+
+ // sets the font
+ virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
+
+private :
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
+} ;
- cairo_set_font_size(m_context,font.GetPointSize());
- // TODO UNDERLINE
- // TODO FIX SIZE
+//-----------------------------------------------------------------------------
+// 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;
+
+#ifdef __WXGTK__
+wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
+{
+ return &gs_cairoGraphicsRenderer;
}
+#endif
-void * wxCairoContext::GetNativeContext()
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc)
{
- return m_context;
+ return new wxCairoContext(this,dc);
+}
+
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
+{
+ return new wxCairoContext(this,dc);
+}
+
+wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context )
+{
+ return new wxCairoContext(this,(cairo_t*)context);
+}
+
+
+wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window )
+{
+#ifdef __WXGTK__
+ return new wxCairoContext(this,(GdkDrawable*)window);
+#else
+ return NULL;
+#endif
+}
+
+wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext()
+{
+ return NULL;
+ // TODO
+}
+
+wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window )
+{
+ return new wxCairoContext(this, window );
}
-wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc )
+// Path
+
+wxGraphicsPath wxCairoRenderer::CreatePath()
{
- return new wxCairoContext(dc);
+ wxGraphicsPath path;
+ path.SetRefData( new wxCairoPathData(this) );
+ return path;
}
-wxGraphicsContext* wxGraphicsContext::Create( wxWindow * window )
+
+// Matrix
+
+wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
+
{
- return NULL; // TODO
+ wxGraphicsMatrix m;
+ wxCairoMatrixData* data = new wxCairoMatrixData( this );
+ data->Set( a,b,c,d,tx,ty ) ;
+ m.SetRefData(data);
+ return m;
}
-wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
+wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
{
- return NULL; // TODO
+ if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
+ return wxNullGraphicsPen;
+ else
+ {
+ wxGraphicsPen p;
+ p.SetRefData(new wxCairoPenData( this, pen ));
+ return p;
+ }
+}
+
+wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
+{
+ if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
+ return wxNullGraphicsBrush;
+ else
+ {
+ wxGraphicsBrush p;
+ p.SetRefData(new wxCairoBrushData( this, brush ));
+ 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 p;
+ wxCairoBrushData* d = new wxCairoBrushData( this );
+ d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
+ 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 p;
+ wxCairoBrushData* d = new wxCairoBrushData( this );
+ d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+ p.SetRefData(d);
+ return p;
+}
+
+// sets the font
+wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
+{
+ if ( font.Ok() )
+ {
+ wxGraphicsFont p;
+ p.SetRefData(new wxCairoFontData( this , font, col ));
+ return p;
+ }
+ else
+ return wxNullGraphicsFont;
}
#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff