#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
-#ifdef __WXGTK__
-#include "wx/gtk/win_gtk.h"
-#endif
-
-#include "wx/graphics.h"
+#include "wx/private/graphics.h"
#include "wx/rawbmp.h"
-#if wxUSE_GRAPHICS_CONTEXT
-
#include <vector>
using namespace std;
#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/osx/private.h"
+#include <cairo-quartz.h>
+#include <cairo-atsui.h>
#endif
class WXDLLIMPEXP_CORE wxCairoPathData : public wxGraphicsPathData
/*
- // appends a rectangle as a new closed subpath
+ // appends a rectangle as a new closed subpath
virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
// appends an ellipsis as a new closed subpath fitting the passed rectangle
virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ;
virtual void Concat( const wxGraphicsMatrixData *t );
// sets the matrix to the respective values
- virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
wxDouble tx=0.0, wxDouble ty=0.0);
// gets the component valuess of the matrix
virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
-
+
// makes this the inverse matrix
virtual void Invert();
virtual void Scale( wxDouble xScale , wxDouble yScale );
// add the rotation to this matrix (radians)
- virtual void Rotate( wxDouble angle );
+ virtual void Rotate( wxDouble angle );
//
// apply the transforms
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;
~wxCairoBrushData ();
virtual void Apply( wxGraphicsContext* context );
- void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ 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 );
~wxCairoFontData();
virtual void Apply( wxGraphicsContext* context );
+#ifdef __WXGTK__
+ const PangoFontDescription* GetFont() const { return m_font; }
+#endif
private :
- wxCharBuffer m_fontName;
double m_size;
- cairo_font_slant_t m_slant;
- cairo_font_weight_t m_weight;
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
public:
wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc );
+ wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc );
#ifdef __WXGTK__
wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable );
#endif
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 bool SetLogicalFunction( int function );
+
virtual void StrokePath( const wxGraphicsPath& p );
virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxWINDING_RULE );
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
private:
+ void Init(cairo_t *context);
+
cairo_t* m_context;
};
wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
: wxGraphicsObjectRefData(renderer)
-{
+{
Init();
m_pen = pen;
m_width = m_pen.GetWidth();
m_width = 0.1;
m_red = m_pen.GetColour().Red()/255.0;
- m_green = m_pen.GetColour().Green()/255.0;
+ m_green = m_pen.GetColour().Green()/255.0;
m_blue = m_pen.GetColour().Blue()/255.0;
m_alpha = m_pen.GetColour().Alpha()/255.0;
switch ( m_pen.GetStyle() )
{
- case wxSOLID :
+ case wxPENSTYLE_SOLID :
break;
- case wxDOT :
+ case wxPENSTYLE_DOT :
m_count = WXSIZEOF(dotted);
m_userLengths = new double[ m_count ] ;
memcpy( m_userLengths, dotted, sizeof(dotted) );
m_lengths = m_userLengths;
break;
- case wxLONG_DASH :
- m_lengths = dotted ;
+ case wxPENSTYLE_LONG_DASH :
+ m_lengths = dashed ;
m_count = WXSIZEOF(dashed);
break;
- case wxSHORT_DASH :
- m_lengths = dotted ;
+ case wxPENSTYLE_SHORT_DASH :
+ m_lengths = short_dashed ;
m_count = WXSIZEOF(short_dashed);
break;
- case wxDOT_DASH :
- m_lengths = dotted ;
+ case wxPENSTYLE_DOT_DASH :
+ m_lengths = dotted_dashed ;
m_count = WXSIZEOF(dotted_dashed);
break;
- case wxUSER_DASH :
+ case wxPENSTYLE_USER_DASH :
{
wxDash *wxdashes ;
m_count = m_pen.GetDashes( &wxdashes ) ;
m_lengths = m_userLengths ;
}
break;
- case wxSTIPPLE :
+ case wxPENSTYLE_STIPPLE :
{
/*
wxBitmap* bmp = pen.GetStipple();
}
break;
default :
- if ( m_pen.GetStyle() >= wxFIRST_HATCH && m_pen.GetStyle() <= wxLAST_HATCH )
+ if ( m_pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH
+ && m_pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
{
/*
wxDELETE( m_penBrush );
HatchStyle style = HatchStyleHorizontal;
switch( pen.GetStyle() )
{
- case wxBDIAGONAL_HATCH :
+ case wxPENSTYLE_BDIAGONAL_HATCH :
style = HatchStyleBackwardDiagonal;
break ;
- case wxCROSSDIAG_HATCH :
+ case wxPENSTYLE_CROSSDIAG_HATCH :
style = HatchStyleDiagonalCross;
break ;
- case wxFDIAGONAL_HATCH :
+ case wxPENSTYLE_FDIAGONAL_HATCH :
style = HatchStyleForwardDiagonal;
break ;
- case wxCROSS_HATCH :
+ case wxPENSTYLE_CROSS_HATCH :
style = HatchStyleCross;
break ;
- case wxHORIZONTAL_HATCH :
+ case wxPENSTYLE_HORIZONTAL_HATCH :
style = HatchStyleHorizontal;
break ;
- case wxVERTICAL_HATCH :
+ case wxPENSTYLE_VERTICAL_HATCH :
style = HatchStyleVertical;
break ;
: wxGraphicsObjectRefData(renderer)
{
Init();
-
+
m_red = brush.GetColour().Red()/255.0;
- m_green = brush.GetColour().Green()/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)
+ if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID)
{
m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
brush.GetColour().Green() , brush.GetColour().Blue() ) );
HatchStyle style = HatchStyleHorizontal;
switch( brush.GetStyle() )
{
- case wxBDIAGONAL_HATCH :
+ case wxBRUSHSTYLE_BDIAGONAL_HATCH :
style = HatchStyleBackwardDiagonal;
break ;
- case wxCROSSDIAG_HATCH :
+ case wxBRUSHSTYLE_CROSSDIAG_HATCH :
style = HatchStyleDiagonalCross;
break ;
- case wxFDIAGONAL_HATCH :
+ case wxBRUSHSTYLE_FDIAGONAL_HATCH :
style = HatchStyleForwardDiagonal;
break ;
- case wxCROSS_HATCH :
+ case wxBRUSHSTYLE_CROSS_HATCH :
style = HatchStyleCross;
break ;
- case wxHORIZONTAL_HATCH :
+ case wxBRUSHSTYLE_HORIZONTAL_HATCH :
style = HatchStyleHorizontal;
break ;
- case wxVERTICAL_HATCH :
+ case wxBRUSHSTYLE_VERTICAL_HATCH :
style = HatchStyleVertical;
break ;
m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent );
}
- else
+ else
{
wxBitmap* bmp = brush.GetStipple();
if ( bmp && bmp->Ok() )
}
}
-void wxCairoBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+void wxCairoBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
const wxColour&c1, const wxColour&c2 )
{
m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2);
// wxCairoFontData implementation
//-----------------------------------------------------------------------------
-wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font,
+wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font,
const wxColour& col ) : wxGraphicsObjectRefData(renderer)
{
m_red = col.Red()/255.0;
- m_green = col.Green()/255.0;
+ m_green = col.Green()/255.0;
m_blue = col.Blue()/255.0;
m_alpha = col.Alpha()/255.0;
-
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
}
wxCairoFontData::~wxCairoFontData()
{
+#ifdef __WXMAC__
+ cairo_font_face_destroy( m_font );
+#elif defined(__WXGTK__)
+ pango_font_description_free( m_font );
+#else
+#endif
}
void wxCairoFontData::Apply( wxGraphicsContext* context )
{
cairo_t * ctext = (cairo_t*) context->GetNativeContext();
cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
- cairo_select_font_face(ctext,m_fontName,m_slant,m_weight);
- cairo_set_font_size(ctext,m_size);
- // TODO UNDERLINE
- // TODO FIX SIZE
+#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 wxCairoPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
{
- // as clockwise means positive in our system (y pointing downwards)
+ // as clockwise means positive in our system (y pointing downwards)
// TODO make this interpretation dependent of the
// real device trans
if ( clockwise||(endAngle-startAngle)>=2*M_PI)
}
// transforms each point of this path by the matrix
-void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix )
+void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix )
{
// as we don't have a true path object, we have to apply the inverse
// matrix to the context
cairo_matrix_t m = *((cairo_matrix_t*) matrix->GetNativeMatrix());
cairo_matrix_invert( &m );
cairo_transform(m_pathContext,&m);
-}
+}
// gets the bounding box enclosing all points (possibly including control points)
void wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
*x = x1;
*w = x2-x1;
}
-
+
if( y2 < y1 )
{
*y = y2;
}
}
-bool wxCairoPathData::Contains( wxDouble x, wxDouble y, int fillStyle ) const
+bool wxCairoPathData::Contains( wxDouble x, wxDouble y, int WXUNUSED(fillStyle) ) const
{
return cairo_in_stroke( m_pathContext, x, y) != 0;
}
m_matrix = *matrix;
}
-wxCairoMatrixData::~wxCairoMatrixData()
+wxCairoMatrixData::~wxCairoMatrixData()
{
// nothing to do
}
-wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
+wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
{
return new wxCairoMatrixData(GetRenderer(),&m_matrix);
}
// concatenates the matrix
-void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
+void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
{
- cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix());
+ cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix());
}
// sets the matrix to the respective values
-void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
- wxDouble tx, wxDouble ty)
+void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
{
cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty);
}
}
// makes this the inverse matrix
-void wxCairoMatrixData::Invert()
+void wxCairoMatrixData::Invert()
{
cairo_matrix_invert( &m_matrix );
}
// returns true if the elements of the transformation matrix are equal ?
-bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
+bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
{
const cairo_matrix_t* tm = (cairo_matrix_t*) t->GetNativeMatrix();
- return (
- m_matrix.xx == tm->xx &&
- m_matrix.yx == tm->yx &&
- m_matrix.xy == tm->xy &&
- m_matrix.yy == tm->yy &&
- m_matrix.x0 == tm->x0 &&
+ return (
+ m_matrix.xx == tm->xx &&
+ m_matrix.yx == tm->yx &&
+ m_matrix.xy == tm->xy &&
+ m_matrix.yy == tm->yy &&
+ m_matrix.x0 == tm->x0 &&
m_matrix.y0 == tm->y0 ) ;
}
}
// add the rotation to this matrix (radians)
-void wxCairoMatrixData::Rotate( wxDouble angle )
+void wxCairoMatrixData::Rotate( wxDouble angle )
{
cairo_matrix_rotate( &m_matrix, angle) ;
-}
+}
//
// apply the transforms
// wxCairoContext implementation
//-----------------------------------------------------------------------------
+class wxCairoOffsetHelper
+{
+public :
+ wxCairoOffsetHelper( cairo_t* ctx , bool offset )
+ {
+ m_ctx = ctx;
+ m_offset = offset;
+ if ( m_offset )
+ cairo_translate( m_ctx, 0.5, 0.5 );
+ }
+ ~wxCairoOffsetHelper( )
+ {
+ if ( m_offset )
+ cairo_translate( m_ctx, -0.5, -0.5 );
+ }
+public :
+ cairo_t* m_ctx;
+ bool m_offset;
+} ;
+
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc )
+: wxGraphicsContext(renderer)
+{
+#ifdef __WXGTK20__
+ const wxDCImpl *impl = dc.GetImpl();
+ Init( (cairo_t*) impl->GetCairoContext() );
+
+ wxPoint org = dc.GetDeviceOrigin();
+ cairo_translate( m_context, org.x, org.y );
+
+ double sx,sy;
+ dc.GetUserScale( &sx, &sy );
+ cairo_scale( m_context, sx, sy );
+
+ org = dc.GetLogicalOrigin();
+ cairo_translate( m_context, -org.x, -org.y );
+#endif
+}
+
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc )
: wxGraphicsContext(renderer)
{
-#ifdef __WXGTK__
- m_context = gdk_cairo_create( dc.m_window ) ;
+#ifdef __WXGTK20__
+ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
+ Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+
+#if 0
+ wxGraphicsMatrix matrix = CreateMatrix();
+
+ wxPoint org = dc.GetDeviceOrigin();
+ matrix.Translate( org.x, org.y );
+
+ org = dc.GetLogicalOrigin();
+ matrix.Translate( -org.x, -org.y );
+
+ double sx,sy;
+ dc.GetUserScale( &sx, &sy );
+ matrix.Scale( sx, sy );
+
+ ConcatTransform( matrix );
+#endif
+#endif
+
+#ifdef __WXMAC__
+ int width, height;
+ dc.GetSize( &width, &height );
+ CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
+ cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
+ Init( cairo_create( surface ) );
+ cairo_surface_destroy( surface );
#endif
- PushState();
- PushState();
}
-#ifdef __WXGTK__
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc )
+: wxGraphicsContext(renderer)
+{
+#ifdef __WXGTK20__
+ wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
+ Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
+
+#if 0
+ wxGraphicsMatrix matrix = CreateMatrix();
+
+ wxPoint org = dc.GetDeviceOrigin();
+ matrix.Translate( org.x, org.y );
+
+ org = dc.GetLogicalOrigin();
+ matrix.Translate( -org.x, -org.y );
+
+ double sx,sy;
+ dc.GetUserScale( &sx, &sy );
+ matrix.Scale( sx, sy );
+
+ ConcatTransform( matrix );
+#endif
+#endif
+
+#ifdef __WXMAC__
+ int width, height;
+ dc.GetSize( &width, &height );
+ CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
+ cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
+ Init( cairo_create( surface ) );
+ cairo_surface_destroy( surface );
+#endif
+}
+
+#ifdef __WXGTK20__
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable )
: wxGraphicsContext(renderer)
{
- m_context = gdk_cairo_create( drawable ) ;
- PushState();
- PushState();
+ Init( gdk_cairo_create( drawable ) );
}
#endif
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context )
: wxGraphicsContext(renderer)
{
- m_context = context ;
- PushState();
- PushState();
+ Init( context );
}
wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window)
#ifdef __WXGTK__
// something along these lines (copied from dcclient)
- GtkWidget *widget = window->m_wxwindow;
-
// 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 ( !widget )
+ if (window->m_wxwindow == NULL)
{
window = window->GetParent();
- widget = window->m_wxwindow;
}
- wxASSERT_MSG( widget, wxT("wxCairoContext needs a widget") );
+ wxASSERT_MSG( window->m_wxwindow, wxT("wxCairoContext needs a widget") );
- GtkPizza *pizza = GTK_PIZZA( widget );
- GdkDrawable* drawable = pizza->bin_window;
- m_context = gdk_cairo_create( drawable ) ;
+ Init(gdk_cairo_create(window->GTKGetDrawingWindow()));
#endif
- PushState();
- PushState();
}
wxCairoContext::~wxCairoContext()
}
}
+void wxCairoContext::Init(cairo_t *context)
+{
+ m_context = context ;
+ PushState();
+ PushState();
+}
+
void wxCairoContext::Clip( const wxRegion& region )
{
while (ri)
{
path.AddRectangle(ri.GetX(), ri.GetY(), ri.GetW(), ri.GetH());
- ri++;
+ ++ri;
}
-
+
// Put it in the context
cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
cairo_append_path(m_context, cp);
// clip to that path
cairo_clip(m_context);
- path.UnGetNativePath(cp);
+ path.UnGetNativePath(cp);
}
void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
// clip to that path
cairo_clip(m_context);
- path.UnGetNativePath(cp);
+ path.UnGetNativePath(cp);
}
void wxCairoContext::ResetClip()
void wxCairoContext::StrokePath( const wxGraphicsPath& path )
{
if ( !m_pen.IsNull() )
- {
+ {
+ wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
cairo_append_path(m_context,cp);
((wxCairoPenData*)m_pen.GetRefData())->Apply(this);
{
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);
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...
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++)
{
if (alpha == 0)
*data = 0;
else
- *data = ( alpha << 24
- | (p.Red() * alpha/255) << 16
- | (p.Green() * alpha/255) << 8
+ *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
{
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++)
{
}
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.
void wxCairoContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
{
- if ( m_font.IsNull() || str.empty())
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::DrawText - no valid font set") );
+
+ if ( str.empty())
return;
-
+
+#ifdef __WXGTK__
+ const wxCharBuffer data = str.utf8_str();
+ if ( !data )
+ return;
+ size_t datalen = strlen(data);
((wxCairoFontData*)m_font.GetRefData())->Apply(this);
+ PangoLayout *layout = pango_cairo_create_layout (m_context);
+ pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont());
+ pango_layout_set_text(layout, data, datalen);
+ cairo_move_to(m_context, x, y);
+ pango_cairo_show_layout (m_context, layout);
+
+ g_object_unref (layout);
+#else
+ ((wxCairoFontData*)m_font.GetRefData())->Apply(this);
// Cairo's x,y for drawing text is at the baseline, so we need to adjust
// the position we move to by the ascent.
cairo_font_extents_t fe;
cairo_font_extents(m_context, &fe);
cairo_move_to(m_context, x, y+fe.ascent);
-
+
const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
cairo_show_text(m_context,buf);
+#endif
}
void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const
{
- if ( m_font.IsNull() || str.empty())
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetTextExtent - no valid font set") );
+
+ if ( width )
+ *width = 0;
+ if ( height )
+ *height = 0;
+ if ( descent )
+ *descent = 0;
+ if ( externalLeading )
+ *externalLeading = 0;
+
+ if ( str.empty())
return;
+#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)
{
cairo_font_extents_t fe;
cairo_font_extents(m_context, &fe);
-
+
+ // some backends have negative descents
+
+ if ( fe.descent < 0 )
+ fe.descent = -fe.descent;
+
+ if ( fe.height < (fe.ascent + fe.descent ) )
+ {
+ // some backends are broken re height ... (eg currently ATSUI)
+ fe.height = fe.ascent + fe.descent;
+ }
+
if (height)
*height = fe.height;
if ( descent )
if ( externalLeading )
*externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent));
}
+#endif
}
void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
widths.Empty();
widths.Add(0, text.length());
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") );
+
if (text.empty())
return;
// TODO
}
-void * wxCairoContext::GetNativeContext()
+void * wxCairoContext::GetNativeContext()
{
return m_context;
}
+// Cairo doesn't support bitwise logical function (a.k.a. ROP, raster output
+// mode). Cairo supports Porter-Duff compositing operators, but they are quite
+// different, although in some cases have similar names.
+bool wxCairoContext::SetLogicalFunction( int function )
+{
+ if (m_logicalFunction == function)
+ return true;
+
+ cairo_operator_t op;
+
+ switch ( function )
+ {
+ case wxCOPY: // (default) src
+ op = CAIRO_OPERATOR_OVER; // (also default)
+ break;
+ case wxOR: // src OR dst
+ op = CAIRO_OPERATOR_ADD;
+ break;
+ case wxNO_OP: // dst
+ op = CAIRO_OPERATOR_DEST; // ignore the source
+ break;
+ case wxCLEAR: // 0
+ op = CAIRO_OPERATOR_CLEAR;// clear dst
+ break;
+
+ case wxAND: // src AND dst
+ case wxAND_INVERT: // (NOT src) AND dst
+ case wxAND_REVERSE:// src AND (NOT dst)
+ case wxEQUIV: // (NOT src) XOR dst
+ case wxINVERT: // NOT dst
+ case wxNAND: // (NOT src) OR (NOT dst)
+ case wxNOR: // (NOT src) AND (NOT dst)
+ case wxOR_INVERT: // (NOT src) OR dst
+ case wxOR_REVERSE: // src OR (NOT dst)
+ case wxSET: // 1
+ case wxSRC_INVERT: // NOT src
+ //wxXOR does _not_ correspond to CAIRO_OPERATOR_XOR
+ case wxXOR: // src XOR dst
+ default:
+ return false;
+ }
+
+ m_logicalFunction = function;
+ cairo_set_operator(m_context, op);
+ return true;
+}
+
+
//-----------------------------------------------------------------------------
// wxCairoRenderer declaration
//-----------------------------------------------------------------------------
// Context
virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
-
-#ifdef __WXMSW__
virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
-#endif
+ virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
// Matrix
- virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
wxDouble tx=0.0, wxDouble ty=0.0);
virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
- virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ 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)
+ // 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 ) ;
+ // create a native bitmap representation
+#if 0
+ virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap )
+ {
+ return wxGraphicsBitmap;
+ }
+
+ // create a subimage from a native image representation
+ virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+ {
+ return wxGraphicsBitmap;
+ }
+#endif
+
private :
DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
} ;
IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer)
static wxCairoRenderer gs_cairoGraphicsRenderer;
+// temporary hack to allow creating a cairo context on any platform
+extern wxGraphicsRenderer* gCairoRenderer;
+wxGraphicsRenderer* gCairoRenderer = &gs_cairoGraphicsRenderer;
#ifdef __WXGTK__
wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
return new wxCairoContext(this,dc);
}
-#ifdef __WXMSW__
wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
{
- return NULL;
+ return new wxCairoContext(this,dc);
}
+
+wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc)
+{
+#ifdef __WXGTK20__
+ const wxDCImpl *impl = dc.GetImpl();
+ cairo_t* context = (cairo_t*) impl->GetCairoContext();
+ if (context)
+ return new wxCairoContext(this,dc);
+ else
#endif
+ return NULL;
+}
wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context )
{
// Matrix
-wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty)
{
return m;
}
-wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
+wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
{
if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsPen;
}
}
-wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
+wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
{
if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsBrush;
}
// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush wxCairoRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2)
+wxGraphicsBrush wxCairoRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2)
{
wxGraphicsBrush p;
wxCairoBrushData* d = new wxCairoBrushData( this );
return p;
}
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
+// 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)
+ const wxColour &oColor, const wxColour &cColor)
{
wxGraphicsBrush p;
wxCairoBrushData* d = new wxCairoBrushData( this );
}
// sets the font
-wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
+wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
{
if ( font.Ok() )
- {
+ {
wxGraphicsFont p;
p.SetRefData(new wxCairoFontData( this , font, col ));
return p;
projects / wxWidgets.git / blobdiff