X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bb8204ef8236a9d1f39516832947ea4081f22146..d949570b6673dadd764686213afb89bddb6f19da:/src/generic/graphicc.cpp diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp old mode 100755 new mode 100644 index b092965f0d..df232c1db3 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -11,12 +11,14 @@ #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" @@ -33,8 +35,7 @@ #endif #include "wx/graphics.h" - -#if wxUSE_GRAPHICS_CONTEXT +#include "wx/rawbmp.h" #include @@ -95,15 +96,28 @@ static inline double RadToDeg(double deg) #endif #include +#ifdef __WXGTK__ #include +#include "wx/fontutil.h" +#endif + +#ifdef __WXMSW__ +#include +#endif + +#ifdef __WXMAC__ +#include "wx/mac/private.h" +#include +#include +#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 @@ -123,7 +137,10 @@ public : 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(); @@ -148,105 +165,184 @@ public : 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 ); +#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 @@ -257,173 +353,124 @@ public: 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() ) { @@ -431,58 +478,59 @@ void wxCairoContext::StrokePath( const wxGraphicsPath *path ) 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; @@ -490,358 +538,901 @@ void wxCairoContext::StrokePath( const wxGraphicsPath *path ) 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__ +#if wxUSE_NEW_DC + wxGTKImplDC *impldc = (wxGTKImplDC*) dc.GetImpl(); + Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); +#else + Init( gdk_cairo_create( dc.m_window ) ); +#endif +#endif +#ifdef __WXMAC__ + int width, height; + dc.GetSize( &width, &height ); + CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); + cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); + Init( cairo_create( surface ) ); + 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; yDrawImage(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 @@ -851,62 +1442,209 @@ void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& 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 +//----------------------------------------------------------------------------- - cairo_set_font_size(m_context,font.GetPointSize()); - // TODO UNDERLINE - // TODO FIX SIZE +class WXDLLIMPEXP_CORE wxCairoRenderer : public wxGraphicsRenderer +{ +public : + wxCairoRenderer() {} + + virtual ~wxCairoRenderer() {} + + // Context + + virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc); + +#ifdef __WXMSW__ + virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc); +#endif + + 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) +} ; + +//----------------------------------------------------------------------------- +// 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); +} + +#ifdef __WXMSW__ +wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc) +{ + return NULL; +} +#endif + +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