// Author: Stefan Csomor
// Modified by:
// Created: 2006-10-03
-// RCS-ID: $Id$
// Copyright: (c) 2006 Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// the wx dll in order to load them dynamically.
#define cairo_public
-#include "wx/cairo.h"
+#include <cairo.h>
+
+bool wxCairoInit();
#ifndef WX_PRECOMP
#include "wx/bitmap.h"
#ifdef __WXGTK__
#include <gtk/gtk.h>
#include "wx/fontutil.h"
+#ifndef __WXGTK3__
#include "wx/gtk/dc.h"
#endif
+#endif
#ifdef __WXMAC__
#include "wx/osx/private.h"
cairo_matrix_t m_matrix ;
} ;
-class WXDLLIMPEXP_CORE wxCairoPenData : public wxGraphicsObjectRefData
+// Common base class for pens and brushes.
+class wxCairoPenBrushBaseData : public wxGraphicsObjectRefData
+{
+public:
+ wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer,
+ const wxColour& col,
+ bool isTransparent);
+ virtual ~wxCairoPenBrushBaseData();
+
+ virtual void Apply( wxGraphicsContext* context );
+
+protected:
+ // Call this to use the given bitmap as stipple. Bitmap must be non-null
+ // and valid.
+ void InitStipple(wxBitmap* bmp);
+
+ // Call this to use the given hatch style. Hatch style must be valid.
+ void InitHatch(wxHatchStyle hatchStyle);
+
+
+ double m_red;
+ double m_green;
+ double m_blue;
+ double m_alpha;
+
+ cairo_pattern_t* m_pattern;
+ class wxCairoBitmapData* m_bmpdata;
+
+private:
+ // Called once to allocate m_pattern if needed.
+ void InitHatchPattern(cairo_t* ctext);
+
+ wxHatchStyle m_hatchStyle;
+
+ wxDECLARE_NO_COPY_CLASS(wxCairoPenBrushBaseData);
+};
+
+class WXDLLIMPEXP_CORE wxCairoPenData : public wxCairoPenBrushBaseData
{
public:
wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
private :
double m_width;
- double m_red;
- double m_green;
- double m_blue;
- double m_alpha;
-
cairo_line_cap_t m_cap;
cairo_line_join_t m_join;
const double *m_lengths;
double *m_userLengths;
- wxPen m_pen;
-
wxDECLARE_NO_COPY_CLASS(wxCairoPenData);
};
-class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData
+class WXDLLIMPEXP_CORE wxCairoBrushData : public wxCairoPenBrushBaseData
{
public:
wxCairoBrushData( wxGraphicsRenderer* renderer );
wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
- ~wxCairoBrushData ();
-
- virtual void Apply( wxGraphicsContext* context );
void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
wxDouble x2, wxDouble y2,
// common part of Create{Linear,Radial}GradientBrush()
void AddGradientStops(const wxGraphicsGradientStops& stops);
-
-private :
- double m_red;
- double m_green;
- double m_blue;
- double m_alpha;
-
- cairo_pattern_t* m_brushPattern;
};
class wxCairoFontData : public wxGraphicsObjectRefData
cairo_font_weight_t m_weight;
};
-class wxCairoBitmapData : public wxGraphicsObjectRefData
+class wxCairoBitmapData : public wxGraphicsBitmapData
{
public:
wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp );
virtual cairo_surface_t* GetCairoSurface() { return m_surface; }
virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; }
+ virtual void* GetNativeBitmap() const { return m_surface; }
virtual wxSize GetSize() { return wxSize(m_width, m_height); }
#if wxUSE_IMAGE
wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc );
wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc );
#ifdef __WXGTK__
- wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable );
+ wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window );
#endif
#ifdef __WXMSW__
wxCairoContext( wxGraphicsRenderer* renderer, HDC context );
};
#endif // wxUSE_IMAGE
+// ----------------------------------------------------------------------------
+// wxCairoPenBrushBaseData implementation
+//-----------------------------------------------------------------------------
+
+wxCairoPenBrushBaseData::wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer,
+ const wxColour& col,
+ bool isTransparent)
+ : wxGraphicsObjectRefData(renderer)
+{
+ m_hatchStyle = wxHATCHSTYLE_INVALID;
+ m_pattern = NULL;
+ m_bmpdata = NULL;
+
+ if ( isTransparent )
+ {
+ m_red =
+ m_green =
+ m_blue =
+ m_alpha = 0;
+ }
+ else // non-transparent
+ {
+ m_red = col.Red()/255.0;
+ m_green = col.Green()/255.0;
+ m_blue = col.Blue()/255.0;
+ m_alpha = col.Alpha()/255.0;
+ }
+}
+
+wxCairoPenBrushBaseData::~wxCairoPenBrushBaseData()
+{
+ if (m_bmpdata)
+ {
+ // Deleting the bitmap data also deletes the pattern referenced by
+ // m_pattern, so set it to NULL to avoid deleting it twice.
+ delete m_bmpdata;
+ m_pattern = NULL;
+ }
+ if (m_pattern)
+ cairo_pattern_destroy(m_pattern);
+}
+
+void wxCairoPenBrushBaseData::InitHatchPattern(cairo_t* ctext)
+{
+ cairo_surface_t* const
+ surface = cairo_surface_create_similar(
+ cairo_get_target(ctext), CAIRO_CONTENT_COLOR_ALPHA, 10, 10
+ );
+
+ cairo_t* const cr = cairo_create(surface);
+ cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
+ cairo_set_line_width(cr, 1);
+ cairo_set_line_join(cr,CAIRO_LINE_JOIN_MITER);
+
+ switch ( m_hatchStyle )
+ {
+ case wxHATCHSTYLE_CROSS:
+ cairo_move_to(cr, 5, 0);
+ cairo_line_to(cr, 5, 10);
+ cairo_move_to(cr, 0, 5);
+ cairo_line_to(cr, 10, 5);
+ break;
+
+ case wxHATCHSTYLE_BDIAGONAL:
+ cairo_move_to(cr, 0, 10);
+ cairo_line_to(cr, 10, 0);
+ break;
+
+ case wxHATCHSTYLE_FDIAGONAL:
+ cairo_move_to(cr, 0, 0);
+ cairo_line_to(cr, 10, 10);
+ break;
+
+ case wxHATCHSTYLE_CROSSDIAG:
+ cairo_move_to(cr, 0, 0);
+ cairo_line_to(cr, 10, 10);
+ cairo_move_to(cr, 10, 0);
+ cairo_line_to(cr, 0, 10);
+ break;
+
+ case wxHATCHSTYLE_HORIZONTAL:
+ cairo_move_to(cr, 0, 5);
+ cairo_line_to(cr, 10, 5);
+ break;
+
+ case wxHATCHSTYLE_VERTICAL:
+ cairo_move_to(cr, 5, 0);
+ cairo_line_to(cr, 5, 10);
+ break;
+
+ default:
+ wxFAIL_MSG(wxS("Invalid hatch pattern style."));
+ }
+
+ cairo_set_source_rgba(cr, m_red, m_green, m_blue, m_alpha);
+ cairo_stroke(cr);
+
+ cairo_destroy(cr);
+
+ m_pattern = cairo_pattern_create_for_surface(surface);
+ cairo_surface_destroy(surface);
+ cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT);
+}
+
+void wxCairoPenBrushBaseData::InitStipple(wxBitmap* bmp)
+{
+ wxCHECK_RET( bmp && bmp->IsOk(), wxS("Invalid stippled bitmap") );
+
+ m_bmpdata = new wxCairoBitmapData(GetRenderer(), *bmp);
+ m_pattern = m_bmpdata->GetCairoPattern();
+ cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT);
+}
+
+void wxCairoPenBrushBaseData::InitHatch(wxHatchStyle hatchStyle)
+{
+ // We can't create m_pattern right now as we don't have the Cairo context
+ // needed for it, so just remember that we need to do it.
+ m_hatchStyle = hatchStyle;
+}
+
+void wxCairoPenBrushBaseData::Apply( wxGraphicsContext* context )
+{
+ cairo_t* const ctext = (cairo_t*) context->GetNativeContext();
+
+ if ( m_hatchStyle != wxHATCHSTYLE_INVALID && !m_pattern )
+ InitHatchPattern(ctext);
+
+ if ( m_pattern )
+ cairo_set_source(ctext, m_pattern);
+ else
+ cairo_set_source_rgba(ctext, m_red, m_green, m_blue, m_alpha);
+}
+
//-----------------------------------------------------------------------------
// wxCairoPenData implementation
//-----------------------------------------------------------------------------
}
wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
-: wxGraphicsObjectRefData(renderer)
+ : wxCairoPenBrushBaseData(renderer, pen.GetColour(), pen.IsTransparent())
{
Init();
- m_pen = pen;
- m_width = m_pen.GetWidth();
+ m_width = pen.GetWidth();
if (m_width <= 0.0)
m_width = 0.1;
- m_red = m_pen.GetColour().Red()/255.0;
- m_green = m_pen.GetColour().Green()/255.0;
- m_blue = m_pen.GetColour().Blue()/255.0;
- m_alpha = m_pen.GetColour().Alpha()/255.0;
-
- switch ( m_pen.GetCap() )
+ switch ( pen.GetCap() )
{
case wxCAP_ROUND :
m_cap = CAIRO_LINE_CAP_ROUND;
break;
}
- switch ( m_pen.GetJoin() )
+ switch ( pen.GetJoin() )
{
case wxJOIN_BEVEL :
m_join = CAIRO_LINE_JOIN_BEVEL;
9.0 , 6.0 , 3.0 , 3.0
};
- switch ( m_pen.GetStyle() )
+ switch ( pen.GetStyle() )
{
case wxPENSTYLE_SOLID :
break;
case wxPENSTYLE_USER_DASH :
{
wxDash *wxdashes ;
- m_count = m_pen.GetDashes( &wxdashes ) ;
+ m_count = pen.GetDashes( &wxdashes ) ;
if ((wxdashes != NULL) && (m_count > 0))
{
m_userLengths = new double[m_count] ;
m_lengths = m_userLengths ;
}
break;
+
case wxPENSTYLE_STIPPLE :
- {
- /*
- wxBitmap* bmp = pen.GetStipple();
- if ( bmp && bmp->IsOk() )
- {
- wxDELETE( m_penImage );
- wxDELETE( m_penBrush );
- m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
- m_penBrush = new TextureBrush(m_penImage);
- m_pen->SetBrush( m_penBrush );
- }
- */
- }
+ case wxPENSTYLE_STIPPLE_MASK :
+ case wxPENSTYLE_STIPPLE_MASK_OPAQUE :
+ InitStipple(pen.GetStipple());
break;
+
default :
- if ( m_pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH
- && m_pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
+ if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH
+ && pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
{
- /*
- wxDELETE( m_penBrush );
- HatchStyle style = HatchStyleHorizontal;
- switch( pen.GetStyle() )
- {
- case wxPENSTYLE_BDIAGONAL_HATCH :
- style = HatchStyleBackwardDiagonal;
- break ;
- case wxPENSTYLE_CROSSDIAG_HATCH :
- style = HatchStyleDiagonalCross;
- break ;
- case wxPENSTYLE_FDIAGONAL_HATCH :
- style = HatchStyleForwardDiagonal;
- break ;
- case wxPENSTYLE_CROSS_HATCH :
- style = HatchStyleCross;
- break ;
- case wxPENSTYLE_HORIZONTAL_HATCH :
- style = HatchStyleHorizontal;
- break ;
- case wxPENSTYLE_VERTICAL_HATCH :
- style = HatchStyleVertical;
- break ;
-
- }
- m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
- pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent );
- m_pen->SetBrush( m_penBrush )
- */
+ InitHatch(static_cast<wxHatchStyle>(pen.GetStyle()));
}
break;
}
void wxCairoPenData::Apply( wxGraphicsContext* context )
{
+ wxCairoPenBrushBaseData::Apply(context);
+
cairo_t * ctext = (cairo_t*) context->GetNativeContext();
cairo_set_line_width(ctext,m_width);
- cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
cairo_set_line_cap(ctext,m_cap);
cairo_set_line_join(ctext,m_join);
cairo_set_dash(ctext,(double*)m_lengths,m_count,0.0);
//-----------------------------------------------------------------------------
wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer )
- : wxGraphicsObjectRefData( renderer )
+ : wxCairoPenBrushBaseData(renderer, wxColour(), true /* transparent */)
{
Init();
}
-wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush )
- : wxGraphicsObjectRefData(renderer)
+wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer,
+ const wxBrush &brush )
+ : wxCairoPenBrushBaseData(renderer, brush.GetColour(), brush.IsTransparent())
{
Init();
- m_red = brush.GetColour().Red()/255.0;
- m_green = brush.GetColour().Green()/255.0;
- m_blue = brush.GetColour().Blue()/255.0;
- m_alpha = brush.GetColour().Alpha()/255.0;
- /*
- if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID)
- {
- 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 wxBRUSHSTYLE_BDIAGONAL_HATCH :
- style = HatchStyleBackwardDiagonal;
- break ;
- case wxBRUSHSTYLE_CROSSDIAG_HATCH :
- style = HatchStyleDiagonalCross;
- break ;
- case wxBRUSHSTYLE_FDIAGONAL_HATCH :
- style = HatchStyleForwardDiagonal;
- break ;
- case wxBRUSHSTYLE_CROSS_HATCH :
- style = HatchStyleCross;
- break ;
- case wxBRUSHSTYLE_HORIZONTAL_HATCH :
- style = HatchStyleHorizontal;
- break ;
- 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
- {
- wxBitmap* bmp = brush.GetStipple();
- if ( bmp && bmp->IsOk() )
+ switch ( brush.GetStyle() )
{
- wxDELETE( m_brushImage );
- m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
- m_brush = new TextureBrush(m_brushImage);
- }
- }
- */
-}
-
-wxCairoBrushData::~wxCairoBrushData ()
-{
- if (m_brushPattern)
- cairo_pattern_destroy(m_brushPattern);
-}
+ case wxBRUSHSTYLE_STIPPLE:
+ case wxBRUSHSTYLE_STIPPLE_MASK:
+ case wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE:
+ InitStipple(brush.GetStipple());
+ break;
-void wxCairoBrushData::Apply( wxGraphicsContext* context )
-{
- 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);
+ default:
+ if ( brush.IsHatch() )
+ InitHatch(static_cast<wxHatchStyle>(brush.GetStyle()));
+ break;
}
}
cairo_pattern_add_color_stop_rgba
(
- m_brushPattern,
+ m_pattern,
stop.GetPosition(),
col.Red()/255.0,
col.Green()/255.0,
);
}
- wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS,
+ wxASSERT_MSG(cairo_pattern_status(m_pattern) == CAIRO_STATUS_SUCCESS,
wxT("Couldn't create cairo pattern"));
}
wxDouble x2, wxDouble y2,
const wxGraphicsGradientStops& stops)
{
- m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2);
+ m_pattern = cairo_pattern_create_linear(x1,y1,x2,y2);
AddGradientStops(stops);
}
wxDouble radius,
const wxGraphicsGradientStops& stops)
{
- m_brushPattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius);
+ m_pattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius);
AddGradientStops(stops);
}
void wxCairoBrushData::Init()
{
- m_brushPattern = NULL;
+ m_pattern = NULL;
+ m_bmpdata = NULL;
}
//-----------------------------------------------------------------------------
}
wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) :
- wxGraphicsObjectRefData( renderer )
+ wxGraphicsBitmapData( renderer )
{
m_surface = bitmap;
m_pattern = cairo_pattern_create_for_surface(m_surface);
}
-wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer )
+wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsBitmapData( renderer )
{
wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
// image has alpha (or a mask represented as alpha) then we'll use a
// different format and iterator than if it doesn't...
cairo_format_t bufferFormat = bmp.GetDepth() == 32
-#ifdef __WXGTK__
+#if defined(__WXGTK__) && !defined(__WXGTK3__)
|| bmp.GetMask()
#endif
? CAIRO_FORMAT_ARGB32
p.OffsetY(pixData, 1);
}
}
-#ifdef __WXMSW__
+#if defined(__WXMSW__) || defined(__WXGTK3__)
// if there is a mask, set the alpha bytes in the target buffer to
// fully transparent or fully opaque
if (bmpSource.GetMask())
{
- wxBitmap bmpMask = bmpSource.GetMaskBitmap();
+ wxBitmap bmpMask = bmpSource.GetMask()->GetBitmap();
bufferFormat = CAIRO_FORMAT_ARGB32;
data = (wxUint32*)m_buffer;
wxNativePixelData
wxCairoBitmapData::wxCairoBitmapData(wxGraphicsRenderer* renderer,
const wxImage& image)
- : wxGraphicsObjectRefData(renderer)
+ : wxGraphicsBitmapData(renderer)
{
const cairo_format_t bufferFormat = image.HasAlpha()
? CAIRO_FORMAT_ARGB32
Init( cairo_create(m_mswSurface) );
#endif
-#ifdef __WXGTK20__
+#ifdef __WXGTK3__
+ cairo_t* cr = static_cast<cairo_t*>(dc.GetImpl()->GetCairoContext());
+ if (cr)
+ Init(cr);
+#elif defined __WXGTK20__
wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
m_enableOffset = true;
#ifdef __WXMSW__
- m_mswSurface = cairo_win32_surface_create((HDC)dc.GetHDC());
+
+ HDC hdc = (HDC)dc.GetHDC();
+
+ HBITMAP bitmap = (HBITMAP)GetCurrentObject(hdc, OBJ_BITMAP);
+
+ BITMAP info;
+ bool hasBitmap = false;
+
+ // cairo_win32_surface_create creates a 24-bit bitmap,
+ // so if we have alpha, we need to create a 32-bit surface instead.
+ if (!GetObject(bitmap, sizeof(info), &info) || info.bmBitsPixel < 32)
+ m_mswSurface = cairo_win32_surface_create(hdc);
+ else {
+ hasBitmap = true;
+ m_mswSurface = cairo_image_surface_create_for_data((unsigned char*)info.bmBits,
+ CAIRO_FORMAT_ARGB32,
+ info.bmWidth,
+ info.bmHeight,
+ info.bmWidthBytes);
+ }
+
Init( cairo_create(m_mswSurface) );
+ // If we've created a image surface, we need to flip the Y axis so that
+ // all drawing will appear right side up.
+ if (hasBitmap) {
+ cairo_matrix_t matrix;
+ cairo_matrix_init(&matrix, 1.0, 0.0, 0.0, -1.0, 0.0, height);
+ cairo_set_matrix(m_context, &matrix);
+ }
#endif
-#ifdef __WXGTK20__
+#ifdef __WXGTK3__
+ cairo_t* cr = static_cast<cairo_t*>(dc.GetImpl()->GetCairoContext());
+ if (cr)
+ Init(cr);
+#elif defined __WXGTK20__
wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
}
#ifdef __WXGTK20__
-wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable )
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window )
: wxGraphicsContext(renderer)
{
- Init( gdk_cairo_create( drawable ) );
+ Init( gdk_cairo_create( window ) );
+#ifdef __WXGTK3__
+ m_width = gdk_window_get_width(window);
+ m_height = gdk_window_get_height(window);
+#else
int width, height;
- gdk_drawable_get_size( drawable, &width, &height );
+ gdk_drawable_get_size(window, &width, &height);
m_width = width;
m_height = height;
+#endif
}
#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;
-
+#ifdef __WXGTK__
+ const wxCharBuffer data = text.utf8_str();
+ int w = 0;
+ if (data.length())
+ {
+ PangoLayout* layout = pango_cairo_create_layout(m_context);
+ const wxFont& font = static_cast<wxCairoFontData*>(m_font.GetRefData())->GetFont();
+ pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description);
+ pango_layout_set_text(layout, data, data.length());
+ PangoLayoutIter* iter = pango_layout_get_iter(layout);
+ PangoRectangle rect;
+ do {
+ pango_layout_iter_get_cluster_extents(iter, NULL, &rect);
+ w += rect.width;
+ widths.Add(PANGO_PIXELS(w));
+ } while (pango_layout_iter_next_cluster(iter));
+ pango_layout_iter_free(iter);
+ g_object_unref(layout);
+ }
+ size_t i = widths.GetCount();
+ const size_t len = text.length();
+ while (i++ < len)
+ widths.Add(PANGO_PIXELS(w));
+#else
// TODO
+#endif
}
void * wxCairoContext::GetNativeContext()
// create a subimage from a native image representation
virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
-protected :
- bool EnsureIsLoaded();
- void Load();
- void Unload();
- friend class wxCairoModule;
-private :
- int m_loaded;
DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
} ;
IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer)
static wxCairoRenderer gs_cairoGraphicsRenderer;
-// temporary hack to allow creating a cairo context on any platform
-extern wxGraphicsRenderer* gCairoRenderer;
-wxGraphicsRenderer* gCairoRenderer = &gs_cairoGraphicsRenderer;
-bool wxCairoRenderer::EnsureIsLoaded()
-{
-#ifndef __WXGTK__
- Load();
- return wxCairoInit();
+#ifdef __WXGTK__
+ #define ENSURE_LOADED_OR_RETURN(returnOnFail)
#else
- return true;
+ #define ENSURE_LOADED_OR_RETURN(returnOnFail) \
+ if (!wxCairoInit()) \
+ return returnOnFail
#endif
-}
-
-void wxCairoRenderer::Load()
-{
- wxCairoInit();
-}
-
-void wxCairoRenderer::Unload()
-{
- wxCairoCleanUp();
-}
-
-// call EnsureIsLoaded() and return returnOnFail value if it fails
-#define ENSURE_LOADED_OR_RETURN(returnOnFail) \
- if ( !EnsureIsLoaded() ) \
- return (returnOnFail)
wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc)
{
#if wxUSE_ENH_METAFILE
wxGraphicsContext * wxCairoRenderer::CreateContext( const wxEnhMetaFileDC& WXUNUSED(dc) )
{
- ENSURE_LOADED_OR_RETURN(NULL);
return NULL;
}
#endif
wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window )
{
- ENSURE_LOADED_OR_RETURN(NULL);
#ifdef __WXGTK__
- return new wxCairoContext(this,(GdkDrawable*)window);
+ return new wxCairoContext(this, static_cast<GdkWindow*>(window));
#else
wxUnusedVar(window);
return NULL;
#if wxUSE_IMAGE
wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image)
{
+ ENSURE_LOADED_OR_RETURN(NULL);
return new wxCairoImageContext(this, image);
}
#endif // wxUSE_IMAGE
wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext()
{
- ENSURE_LOADED_OR_RETURN(NULL);
#ifdef __WXGTK__
return CreateContextFromNativeWindow(gdk_get_default_root_window());
-#endif
+#else
return NULL;
// TODO
+#endif
}
wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window )
wxGraphicsPath wxCairoRenderer::CreatePath()
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath);
wxGraphicsPath path;
+ ENSURE_LOADED_OR_RETURN(path);
path.SetRefData( new wxCairoPathData(this) );
return path;
}
wxDouble tx, wxDouble ty)
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix);
wxGraphicsMatrix m;
+ ENSURE_LOADED_OR_RETURN(m);
wxCairoMatrixData* data = new wxCairoMatrixData( this );
data->Set( a,b,c,d,tx,ty ) ;
m.SetRefData(data);
wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
- if ( !pen.IsOk() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
- return wxNullGraphicsPen;
- else
+ wxGraphicsPen p;
+ ENSURE_LOADED_OR_RETURN(p);
+ if (pen.IsOk() && pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
{
- wxGraphicsPen p;
p.SetRefData(new wxCairoPenData( this, pen ));
- return p;
}
+ return p;
}
wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
- if ( !brush.IsOk() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT )
- return wxNullGraphicsBrush;
- else
+ wxGraphicsBrush p;
+ ENSURE_LOADED_OR_RETURN(p);
+ if (brush.IsOk() && brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
{
- wxGraphicsBrush p;
p.SetRefData(new wxCairoBrushData( this, brush ));
- return p;
}
+ return p;
}
wxGraphicsBrush
wxDouble x2, wxDouble y2,
const wxGraphicsGradientStops& stops)
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
+ ENSURE_LOADED_OR_RETURN(p);
wxCairoBrushData* d = new wxCairoBrushData( this );
d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
p.SetRefData(d);
wxDouble xc, wxDouble yc, wxDouble r,
const wxGraphicsGradientStops& stops)
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
+ ENSURE_LOADED_OR_RETURN(p);
wxCairoBrushData* d = new wxCairoBrushData( this );
d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops);
p.SetRefData(d);
wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+ wxGraphicsFont p;
+ ENSURE_LOADED_OR_RETURN(p);
if ( font.IsOk() )
{
- wxGraphicsFont p;
p.SetRefData(new wxCairoFontData( this , font, col ));
- return p;
}
- else
- return wxNullGraphicsFont;
+ return p;
}
wxGraphicsFont
int flags,
const wxColour& col)
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
-
wxGraphicsFont font;
+ ENSURE_LOADED_OR_RETURN(font);
font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col));
return font;
}
wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp )
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ wxGraphicsBitmap p;
+ ENSURE_LOADED_OR_RETURN(p);
if ( bmp.IsOk() )
{
- wxGraphicsBitmap p;
p.SetRefData(new wxCairoBitmapData( this , bmp ));
- return p;
}
- else
- return wxNullGraphicsBitmap;
+ return p;
}
#if wxUSE_IMAGE
wxImage wxCairoRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
{
- ENSURE_LOADED_OR_RETURN(wxNullImage);
+ wxImage image;
+ ENSURE_LOADED_OR_RETURN(image);
const wxCairoBitmapData* const
data = static_cast<wxCairoBitmapData*>(bmp.GetGraphicsData());
+ if (data)
+ image = data->ConvertToImage();
- return data ? data->ConvertToImage() : wxNullImage;
+ return image;
}
#endif // wxUSE_IMAGE
wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ wxGraphicsBitmap p;
+ ENSURE_LOADED_OR_RETURN(p);
if ( bitmap != NULL )
{
- wxGraphicsBitmap p;
p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap ));
- return p;
}
- else
- return wxNullGraphicsBitmap;
+ return p;
}
wxGraphicsBitmap
wxDouble WXUNUSED(w),
wxDouble WXUNUSED(h))
{
- ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ wxGraphicsBitmap p;
wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
- return wxNullGraphicsBitmap;
+ return p;
}
wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
projects / wxWidgets.git / blobdiff