- wxImage();
- wxImage( int width, int height );
- wxImage( const wxString& name, long type = wxBITMAP_TYPE_PNG );
-
- wxImage( const wxImage& image );
- wxImage( const wxImage* image );
-
- void Create( int width, int height );
- void Destroy();
-
- virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_PNG );
- virtual bool SaveFile( const wxString& name, int type );
-
- bool Ok() const;
- int GetWidth() const;
- int GetHeight() const;
-
- char unsigned *GetData() const;
- void SetData( char unsigned *data );
-
- void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
- unsigned char GetMaskRed() const;
- unsigned char GetMaskGreen() const;
- unsigned char GetMaskBlue() const;
- void SetMask( bool mask = TRUE );
- bool HasMask() const;
-
- inline wxImage& operator = (const wxImage& image)
- { if (*this == image) return (*this); Ref(image); return *this; }
- inline bool operator == (const wxImage& image)
- { return m_refData == image.m_refData; }
- inline bool operator != (const wxImage& image)
- { return m_refData != image.m_refData; }
-
- static inline wxList& GetHandlers() { return sm_handlers; }
- static void AddHandler( wxImageHandler *handler );
- static void InsertHandler( wxImageHandler *handler );
- static bool RemoveHandler( const wxString& name );
- static wxImageHandler *FindHandler( const wxString& name );
- static wxImageHandler *FindHandler( const wxString& extension, long imageType );
- static wxImageHandler *FindHandler( long imageType );
-
- static void CleanUpHandlers();
- static void InitStandardHandlers();
+ // replace one colour with another
+ void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
+ unsigned char r2, unsigned char g2, unsigned char b2 );
+
+ // convert to monochrome image (<r,g,b> will be replaced by white,
+ // everything else by black)
+ wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const;
+
+ // these routines are slow but safe
+ void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
+ void SetRGB( const wxRect& rect, unsigned char r, unsigned char g, unsigned char b );
+ unsigned char GetRed( int x, int y ) const;
+ unsigned char GetGreen( int x, int y ) const;
+ unsigned char GetBlue( int x, int y ) const;
+
+ void SetAlpha(int x, int y, unsigned char alpha);
+ unsigned char GetAlpha(int x, int y) const;
+
+ // find first colour that is not used in the image and has higher
+ // RGB values than <startR,startG,startB>
+ bool FindFirstUnusedColour( unsigned char *r, unsigned char *g, unsigned char *b,
+ unsigned char startR = 1, unsigned char startG = 0,
+ unsigned char startB = 0 ) const;
+ // Set image's mask to the area of 'mask' that has <r,g,b> colour
+ bool SetMaskFromImage(const wxImage & mask,
+ unsigned char mr, unsigned char mg, unsigned char mb);
+
+ // converts image's alpha channel to mask, if it has any, does nothing
+ // otherwise:
+ bool ConvertAlphaToMask(unsigned char threshold = 128);
+
+ // This method converts an image where the original alpha
+ // information is only available as a shades of a colour
+ // (actually shades of grey) typically when you draw anti-
+ // aliased text into a bitmap. The DC drawinf routines
+ // draw grey values on the black background although they
+ // actually mean to draw white with differnt alpha values.
+ // This method reverses it, assuming a black (!) background
+ // and white text (actually only the red channel is read).
+ // The method will then fill up the whole image with the
+ // colour given.
+ bool ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b );
+
+ static bool CanRead( const wxString& name );
+ static int GetImageCount( const wxString& name, long type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
+
+#if wxUSE_STREAMS
+ static bool CanRead( wxInputStream& stream );
+ static int GetImageCount( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
+#endif
+
+ virtual bool SaveFile( const wxString& name ) const;
+ virtual bool SaveFile( const wxString& name, int type ) const;
+ virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
+
+#if wxUSE_STREAMS
+ virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+ virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
+#endif
+
+ bool Ok() const;
+ int GetWidth() const;
+ int GetHeight() const;
+
+ // these functions provide fastest access to wxImage data but should be
+ // used carefully as no checks are done
+ unsigned char *GetData() const;
+ void SetData( unsigned char *data );
+ void SetData( unsigned char *data, int new_width, int new_height );
+
+ unsigned char *GetAlpha() const; // may return NULL!
+ bool HasAlpha() const { return GetAlpha() != NULL; }
+ void SetAlpha(unsigned char *alpha = NULL);
+ void InitAlpha();
+
+ // Mask functions
+ void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
+ // Get the current mask colour or find a suitable colour
+ // returns true if using current mask colour
+ bool GetOrFindMaskColour( unsigned char *r, unsigned char *g, unsigned char *b ) const;
+ unsigned char GetMaskRed() const;
+ unsigned char GetMaskGreen() const;
+ unsigned char GetMaskBlue() const;
+ void SetMask( bool mask = true );
+ bool HasMask() const;
+
+#if wxUSE_PALETTE
+ // Palette functions
+ bool HasPalette() const;
+ const wxPalette& GetPalette() const;
+ void SetPalette(const wxPalette& palette);
+#endif // wxUSE_PALETTE
+
+ // Option functions (arbitrary name/value mapping)
+ void SetOption(const wxString& name, const wxString& value);
+ void SetOption(const wxString& name, int value);
+ wxString GetOption(const wxString& name) const;
+ int GetOptionInt(const wxString& name) const;
+ bool HasOption(const wxString& name) const;
+
+ unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ) const;
+
+ // Computes the histogram of the image and fills a hash table, indexed
+ // with integer keys built as 0xRRGGBB, containing wxImageHistogramEntry
+ // objects. Each of them contains an 'index' (useful to build a palette
+ // with the image colours) and a 'value', which is the number of pixels
+ // in the image with that colour.
+ // Returned value: # of entries in the histogram
+ unsigned long ComputeHistogram( wxImageHistogram &h ) const;
+
+ wxImage& operator = (const wxImage& image)
+ {
+ if ( (*this) != image )
+ Ref(image);
+ return *this;
+ }
+
+ bool operator == (const wxImage& image) const
+ { return m_refData == image.m_refData; }
+ bool operator != (const wxImage& image) const
+ { return m_refData != image.m_refData; }
+
+ static wxList& GetHandlers() { return sm_handlers; }
+ static void AddHandler( wxImageHandler *handler );
+ static void InsertHandler( wxImageHandler *handler );
+ static bool RemoveHandler( const wxString& name );
+ static wxImageHandler *FindHandler( const wxString& name );
+ static wxImageHandler *FindHandler( const wxString& extension, long imageType );
+ static wxImageHandler *FindHandler( long imageType );
+ static wxImageHandler *FindHandlerMime( const wxString& mimetype );
+
+ static wxString GetImageExtWildcard();
+
+ static void CleanUpHandlers();
+ static void InitStandardHandlers();
projects / wxWidgets.git / blobdiff