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; }
virtual Font* GetGDIPlusFont() { return m_font; }
+
private :
+ // Common part of all ctors, flags here is a combination of values of
+ // FontStyle GDI+ enum.
+ void Init(const wxString& name,
+ REAL size,
+ int style,
+ const wxColour& col,
+ Unit fontUnit);
+
Brush* m_textBrush;
Font* m_font;
};
wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height );
wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd );
wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr);
- wxGDIPlusContext();
+ wxGDIPlusContext(wxGraphicsRenderer* renderer);
virtual ~wxGDIPlusContext();
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;
wxDouble m_fontScaleRatio;
-private:
- void Init();
- void SetDefaults();
+ // Used from ctors (including those in the derived classes) and takes
+ // ownership of the graphics pointer that must be non-NULL.
+ void Init(Graphics* graphics, int width, int height);
+private:
virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y)
{ DoDrawFilledText(str, x, y, wxNullGraphicsBrush); }
virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y,
GraphicsState m_state1;
GraphicsState m_state2;
- DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
+ wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext);
};
-class wxGDIPlusMeasuringContext : public wxGDIPlusContext
+#if wxUSE_IMAGE
+
+class wxGDIPlusImageContext : public wxGDIPlusContext
{
public:
- wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
+ wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) :
+ wxGDIPlusContext(renderer),
+ m_image(image),
+ m_bitmap(renderer, image)
{
+ Init
+ (
+ new Graphics(m_bitmap.GetGDIPlusBitmap()),
+ image.GetWidth(),
+ image.GetHeight()
+ );
}
- wxGDIPlusMeasuringContext()
+
+ 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:
+ wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
{
}
private:
HDC m_hdc ;
- DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext)
} ;
class wxGDIPlusPrintingContext : public wxGDIPlusContext
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 );
// wxGDIPlusFont implementation
//-----------------------------------------------------------------------------
+void
+wxGDIPlusFontData::Init(const wxString& name,
+ REAL size,
+ int style,
+ const wxColour& col,
+ Unit 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 )
{
- wxWCharBuffer s = font.GetFaceName().wc_str( *wxConvUI );
int style = FontStyleRegular;
if ( font.GetStyle() == wxFONTSTYLE_ITALIC )
style |= FontStyleItalic;
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;
-
- REAL points = font.GetPointSize();
-
- // This scaling is needed when we use unit other than the
- // default UnitPoint. It works for both display and printing.
- REAL size = points * (100.0 / 72.0);
-
- // NB: font unit should match context's unit. We can use UnitPixel,
- // as that is what the print context should use.
- m_font = new Font( s, size, style, fontUnit );
+ Init(font.GetFaceName(), font.GetPointSize(), style, col, UnitPoint);
+}
- m_textBrush = new SolidBrush(wxColourToColor(col));
+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;
// wxGDIPlusContext implementation
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext)
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext,wxGDIPlusContext)
-
class wxGDIPlusOffsetHelper
{
public :
wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height )
: wxGraphicsContext(renderer)
{
- Init();
- m_context = new Graphics( hdc);
- m_width = width;
- m_height = height;
- SetDefaults();
+ Init(new Graphics(hdc), width, height);
}
wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc )
: wxGraphicsContext(renderer)
{
- Init();
-
wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
HDC hdc = (HDC) msw->GetHDC();
-
- m_context = new Graphics(hdc);
wxSize sz = dc.GetSize();
- m_width = sz.x;
- m_height = sz.y;
- SetDefaults();
+ Init(new Graphics(hdc), sz.x, sz.y);
}
wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd )
: wxGraphicsContext(renderer)
{
- Init();
- m_enableOffset = true;
- m_context = new Graphics( hwnd);
RECT rect = wxGetWindowRect(hwnd);
- m_width = rect.right - rect.left;
- m_height = rect.bottom - rect.top;
- SetDefaults();
+ Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top);
+ m_enableOffset = true;
}
wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr )
: wxGraphicsContext(renderer)
{
- Init();
- m_context = gr;
- SetDefaults();
+ Init(gr, 0, 0);
}
-wxGDIPlusContext::wxGDIPlusContext() : wxGraphicsContext(NULL)
+wxGDIPlusContext::wxGDIPlusContext(wxGraphicsRenderer* renderer)
+ : wxGraphicsContext(renderer)
{
- Init();
+ // Derived class must call Init() later but just set m_context to NULL for
+ // safety to avoid crashing in our dtor if Init() ends up not being called.
+ m_context = NULL;
}
-void wxGDIPlusContext::Init()
+void wxGDIPlusContext::Init(Graphics* graphics, int width, int height)
{
- m_context = NULL;
+ m_context = graphics;
m_state1 = 0;
- m_state2= 0;
- m_height = 0;
- m_width = 0;
+ m_state2 = 0;
+ m_width = width;
+ m_height = height;
m_fontScaleRatio = 1.0;
-}
-void wxGDIPlusContext::SetDefaults()
-{
m_context->SetTextRenderingHint(TextRenderingHintSystemDefault);
m_context->SetPixelOffsetMode(PixelOffsetModeHalf);
m_context->SetSmoothingMode(SmoothingModeHighQuality);
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)
if ( m_gditoken )
{
GdiplusShutdown(m_gditoken);
- m_gditoken = NULL;
+ m_gditoken = 0;
}
m_loaded = -1; // next Load() will try again
}
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);
if ( !gc )
return NULL;
+#if wxUSE_CAIRO
+ // we can't get the HDC if it is not a GDI+ context
+ wxGraphicsRenderer* r1 = gc->GetRenderer();
+ wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer();
+ if (r1 == r2)
+ return NULL;
+#endif
+
Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
return g ? g->GetHDC() : NULL;
}
wxGraphicsContext * const gc = GetGraphicsContext();
wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" );
+#if wxUSE_CAIRO
+ // we can't get the HDC if it is not a GDI+ context
+ wxGraphicsRenderer* r1 = gc->GetRenderer();
+ wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer();
+ if (r1 == r2)
+ return;
+#endif
+
Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
wxCHECK_RET( g, "can't release HDC because there is no Graphics" );
projects / wxWidgets.git / blobdiff