X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7d53220e14254fa813a65ca10c05d3ef71888764..1f0acb435592470b421b80df854fbbb08cd2853f:/include/wx/graphics.h?ds=sidebyside diff --git a/include/wx/graphics.h b/include/wx/graphics.h index 915cbfd4e1..0d472b5bca 100644 --- a/include/wx/graphics.h +++ b/include/wx/graphics.h @@ -27,6 +27,20 @@ enum wxAntialiasMode wxANTIALIAS_DEFAULT, }; +enum wxInterpolationQuality +{ + // default interpolation + wxINTERPOLATION_DEFAULT, + // no interpolation + wxINTERPOLATION_NONE, + // fast interpolation, suited for interactivity + wxINTERPOLATION_FAST, + // better quality + wxINTERPOLATION_GOOD, + // best quality, not suited for interactivity + wxINTERPOLATION_BEST +}; + enum wxCompositionMode { // R = Result, S = Source, D = Destination, premultiplied with alpha @@ -35,6 +49,7 @@ enum wxCompositionMode // classic Porter-Duff compositions // http://keithp.com/~keithp/porterduff/p253-porter.pdf + wxCOMPOSITION_INVALID = -1, /* indicates invalid/unsupported mode */ wxCOMPOSITION_CLEAR, /* R = 0 */ wxCOMPOSITION_SOURCE, /* R = S */ wxCOMPOSITION_OVER, /* R = S + D*(1 - Sa) */ @@ -50,7 +65,7 @@ enum wxCompositionMode wxCOMPOSITION_XOR, /* R = S*(1 - Da) + D*(1 - Sa) */ // mathematical compositions - wxCOMPOSITION_ADD, /* R = S + D */ + wxCOMPOSITION_ADD /* R = S + D */ }; class WXDLLIMPEXP_FWD_CORE wxWindowDC; @@ -58,6 +73,11 @@ class WXDLLIMPEXP_FWD_CORE wxMemoryDC; #if wxUSE_PRINTING_ARCHITECTURE class WXDLLIMPEXP_FWD_CORE wxPrinterDC; #endif +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE +class WXDLLIMPEXP_FWD_CORE wxEnhMetaFileDC; +#endif +#endif class WXDLLIMPEXP_FWD_CORE wxGraphicsContext; class WXDLLIMPEXP_FWD_CORE wxGraphicsPath; class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrix; @@ -392,6 +412,11 @@ public: static wxGraphicsContext * Create( const wxMemoryDC& dc); #if wxUSE_PRINTING_ARCHITECTURE static wxGraphicsContext * Create( const wxPrinterDC& dc); +#endif +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE + static wxGraphicsContext * Create( const wxEnhMetaFileDC& dc); +#endif #endif static wxGraphicsContext* CreateFromNative( void * context ); @@ -486,6 +511,12 @@ public: // sets the antialiasing mode, returns true if it supported virtual bool SetAntialiasMode(wxAntialiasMode antialias) = 0; + // returns the current interpolation quality + virtual wxInterpolationQuality GetInterpolationQuality() const { return m_interpolation; } + + // sets the interpolation quality, returns true if it supported + virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation) = 0; + // returns the current compositing operator virtual wxCompositionMode GetCompositionMode() const { return m_composition; } @@ -493,7 +524,13 @@ public: virtual bool SetCompositionMode(wxCompositionMode op) = 0; // returns the size of the graphics context in device coordinates - virtual void GetSize( wxDouble* width, wxDouble* height); + void GetSize(wxDouble* width, wxDouble* height) + { + if ( width ) + *width = m_width; + if ( height ) + *height = m_height; + } // returns the resolution of the graphics context in device points per inch virtual void GetDPI( wxDouble* dpiX, wxDouble* dpiY); @@ -626,14 +663,26 @@ public: // helper to determine if a 0.5 offset should be applied for the drawing operation virtual bool ShouldOffset() const { return false; } - + + // indicates whether the context should try to offset for pixel boundaries, this only makes sense on + // bitmap devices like screen, by default this is turned off + virtual void EnableOffset(bool enable = true); + + void DisableOffset() { EnableOffset(false); } + bool OffsetEnabled() { return m_enableOffset; } + protected: + // These fields must be initialized in the derived class ctors. + wxDouble m_width, + m_height; wxGraphicsPen m_pen; wxGraphicsBrush m_brush; wxGraphicsFont m_font; wxAntialiasMode m_antialias; wxCompositionMode m_composition; + wxInterpolationQuality m_interpolation; + bool m_enableOffset; protected: // implementations of overloaded public functions: we use different names @@ -710,6 +759,11 @@ public: virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc) = 0; #if wxUSE_PRINTING_ARCHITECTURE virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc) = 0; +#endif +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE + virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc) = 0; +#endif #endif virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 0;