virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; }
+#if wxUSE_IMAGE
+ wxImage ConvertToImage() const;
+#endif // wxUSE_IMAGE
+
private :
Bitmap* m_bitmap;
Bitmap* m_helper;
{
public:
wxGDIPlusFontData( wxGraphicsRenderer* renderer,
- const wxGDIPlusContext* gc,
const wxFont &font,
const wxColour& col );
+ wxGDIPlusFontData(wxGraphicsRenderer* renderer,
+ const wxString& name,
+ REAL sizeInPixels,
+ int style,
+ const wxColour& col);
~wxGDIPlusFontData();
virtual Brush* GetGDIPlusBrush() { return m_textBrush; }
REAL size,
int style,
const wxColour& col,
- Unit fontUnit = UnitPixel);
+ Unit fontUnit);
Brush* m_textBrush;
Font* m_font;
virtual void PushState();
virtual void PopState();
- // sets the font of this context
- virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const;
-
virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const;
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext);
};
+#if wxUSE_IMAGE
+
+class wxGDIPlusImageContext : public wxGDIPlusContext
+{
+public:
+ wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) :
+ wxGDIPlusContext(renderer),
+ m_image(image),
+ m_bitmap(renderer, image)
+ {
+ Init
+ (
+ new Graphics(m_bitmap.GetGDIPlusBitmap()),
+ image.GetWidth(),
+ image.GetHeight()
+ );
+ }
+
+ virtual ~wxGDIPlusImageContext()
+ {
+ m_image = m_bitmap.ConvertToImage();
+ }
+
+private:
+ wxImage& m_image;
+ wxGDIPlusBitmapData m_bitmap;
+
+ wxDECLARE_NO_COPY_CLASS(wxGDIPlusImageContext);
+};
+
+#endif // wxUSE_IMAGE
+
class wxGDIPlusMeasuringContext : public wxGDIPlusContext
{
public:
virtual wxGraphicsContext * CreateContext( wxWindow* window );
+#if wxUSE_IMAGE
+ virtual wxGraphicsContext * CreateContextFromImage(wxImage& image);
+#endif // wxUSE_IMAGE
+
virtual wxGraphicsContext * CreateMeasuringContext();
// Path
// create a native bitmap representation
virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
+#if wxUSE_IMAGE
+ virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image);
+ virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp);
+#endif // wxUSE_IMAGE
- // stub: should not be called directly
- virtual wxGraphicsFont CreateFont( const wxFont& WXUNUSED(font),
- const wxColour& WXUNUSED(col) )
- { wxFAIL; return wxNullGraphicsFont; }
+ virtual wxGraphicsFont CreateFont( const wxFont& font,
+ const wxColour& col);
- // this is used to really create the font
- wxGraphicsFont CreateGDIPlusFont( const wxGDIPlusContext* gc,
- const wxFont &font,
- const wxColour &col );
+ virtual wxGraphicsFont CreateFont(double size,
+ const wxString& facename,
+ int flags = wxFONTFLAG_DEFAULT,
+ const wxColour& col = *wxBLACK);
// create a graphics bitmap from a native bitmap
virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
const wxColour& col,
Unit fontUnit)
{
- // This scaling is needed when we use unit other than the
- // default UnitPoint. It works for both display and printing.
- size *= 100.0f / 72.0f;
-
- m_font = new Font(name, size, style, fontUnit);
+ m_font = new Font(name.wc_str(), size, style, fontUnit);
m_textBrush = new SolidBrush(wxColourToColor(col));
}
wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer,
- const wxGDIPlusContext* gc,
const wxFont &font,
const wxColour& col )
: wxGraphicsObjectRefData( renderer )
if ( font.GetWeight() == wxFONTWEIGHT_BOLD )
style |= FontStyleBold;
- Graphics* context = gc->GetGraphics();
-
- Unit fontUnit = context->GetPageUnit();
- // if fontUnit is UnitDisplay, then specify UnitPixel, otherwise
- // you'll get a "InvalidParameter" from GDI+
- if ( fontUnit == UnitDisplay )
- fontUnit = UnitPixel;
+ Init(font.GetFaceName(), font.GetPointSize(), style, col, UnitPoint);
+}
- // NB: font unit should match context's unit. We can use UnitPixel,
- // as that is what the print context should use.
- Init(font.GetFaceName(), font.GetPointSize(), style, col, fontUnit);
+wxGDIPlusFontData::wxGDIPlusFontData(wxGraphicsRenderer* renderer,
+ const wxString& name,
+ REAL sizeInPixels,
+ int style,
+ const wxColour& col) :
+ wxGraphicsObjectRefData(renderer)
+{
+ Init(name, sizeInPixels, style, col, UnitPixel);
}
wxGDIPlusFontData::~wxGDIPlusFontData()
m_bitmap = image;
}
+#if wxUSE_IMAGE
+
+wxImage wxGDIPlusBitmapData::ConvertToImage() const
+{
+ // We could use Bitmap::LockBits() and convert to wxImage directly but
+ // passing by wxBitmap is easier. It would be nice to measure performance
+ // of the two methods but for this the second one would need to be written
+ // first...
+ HBITMAP hbmp;
+ if ( m_bitmap->GetHBITMAP(Color(0xffffffff), &hbmp) != Gdiplus::Ok )
+ return wxNullImage;
+
+ wxBitmap bmp;
+ bmp.SetWidth(m_bitmap->GetWidth());
+ bmp.SetHeight(m_bitmap->GetHeight());
+ bmp.SetHBITMAP(hbmp);
+ bmp.SetDepth(IsAlphaPixelFormat(m_bitmap->GetPixelFormat()) ? 32 : 24);
+ return bmp.ConvertToImage();
+}
+
+#endif // wxUSE_IMAGE
+
wxGDIPlusBitmapData::~wxGDIPlusBitmapData()
{
delete m_bitmap;
DeleteObject(iconInfo.hbmMask);
}
-wxGraphicsFont wxGDIPlusContext::CreateFont( const wxFont &font,
- const wxColour &col ) const
-{
- wxGDIPlusRenderer* renderer =
- static_cast<wxGDIPlusRenderer*>(GetRenderer());
- return renderer->CreateGDIPlusFont(this, font, col);
-}
-
void wxGDIPlusContext::DoDrawFilledText(const wxString& str,
wxDouble x, wxDouble y,
const wxGraphicsBrush& brush)
return context;
}
+#if wxUSE_IMAGE
+wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromImage(wxImage& image)
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ wxGDIPlusContext* context = new wxGDIPlusImageContext(this, image);
+ context->EnableOffset(true);
+ return context;
+}
+
+#endif // wxUSE_IMAGE
+
wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext()
{
ENSURE_LOADED_OR_RETURN(NULL);
}
wxGraphicsFont
-wxGDIPlusRenderer::CreateGDIPlusFont( const wxGDIPlusContext* gc,
- const wxFont &font,
- const wxColour &col )
+wxGDIPlusRenderer::CreateFont( const wxFont &font,
+ const wxColour &col )
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
if ( font.IsOk() )
{
wxGraphicsFont p;
- p.SetRefData(new wxGDIPlusFontData( this, gc, font, col ));
+ p.SetRefData(new wxGDIPlusFontData( this, font, col ));
return p;
}
else
return wxNullGraphicsFont;
}
+wxGraphicsFont
+wxGDIPlusRenderer::CreateFont(double size,
+ const wxString& facename,
+ int flags,
+ const wxColour& col)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+
+ // Convert wxFont flags to GDI+ style:
+ int style = FontStyleRegular;
+ if ( flags & wxFONTFLAG_ITALIC )
+ style |= FontStyleItalic;
+ if ( flags & wxFONTFLAG_UNDERLINED )
+ style |= FontStyleUnderline;
+ if ( flags & wxFONTFLAG_BOLD )
+ style |= FontStyleBold;
+ if ( flags & wxFONTFLAG_STRIKETHROUGH )
+ style |= FontStyleStrikeout;
+
+
+ wxGraphicsFont f;
+ f.SetRefData(new wxGDIPlusFontData(this, facename, size, style, col));
+ return f;
+}
+
wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
return wxNullGraphicsBitmap;
}
+#if wxUSE_IMAGE
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromImage(const wxImage& image)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( image.IsOk() )
+ {
+ // Notice that we rely on conversion from wxImage to wxBitmap here but
+ // we could probably do it more efficiently by converting from wxImage
+ // to GDI+ Bitmap directly, i.e. copying wxImage pixels to the buffer
+ // returned by Bitmap::LockBits(). However this would require writing
+ // code specific for this task while like this we can reuse existing
+ // code (see also wxGDIPlusBitmapData::ConvertToImage()).
+ wxGraphicsBitmap gb;
+ gb.SetRefData(new wxGDIPlusBitmapData(this, image));
+ return gb;
+ }
+ else
+ return wxNullGraphicsBitmap;
+}
+
+
+wxImage wxGDIPlusRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullImage);
+ const wxGDIPlusBitmapData* const
+ data = static_cast<wxGDIPlusBitmapData*>(bmp.GetGraphicsData());
+
+ return data ? data->ConvertToImage() : wxNullImage;
+}
+
+#endif // wxUSE_IMAGE
+
+
wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
projects / wxWidgets.git / blobdiff