X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5e5437e00bb1e42d24060e6115d2e6a042c1a93f..bc55104d9ab0b0b835644f17a152b4fbbfa8c7b9:/include/wx/image.h?ds=sidebyside diff --git a/include/wx/image.h b/include/wx/image.h index 7e872e3911..cf69aa743a 100644 --- a/include/wx/image.h +++ b/include/wx/image.h @@ -19,11 +19,16 @@ #include "wx/string.h" #include "wx/gdicmn.h" #include "wx/bitmap.h" +#include "wx/hashmap.h" #if wxUSE_STREAMS # include "wx/stream.h" #endif +#if wxUSE_IMAGE + +#define wxIMAGE_OPTION_FILENAME wxString(_T("FileName")) + //----------------------------------------------------------------------------- // classes //----------------------------------------------------------------------------- @@ -41,7 +46,7 @@ public: wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; } #if wxUSE_STREAMS - virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 ); + virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=-1 ); virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE ); virtual int GetImageCount( wxInputStream& stream ); @@ -68,41 +73,55 @@ protected: wxString m_extension; wxString m_mime; long m_type; - + private: DECLARE_CLASS(wxImageHandler) }; //----------------------------------------------------------------------------- -// wxImage +// wxImageHistogram //----------------------------------------------------------------------------- -class WXDLLEXPORT wxHNode +class WXDLLEXPORT wxImageHistogramEntry { public: + wxImageHistogramEntry() : index(0), value(0) {} unsigned long index; unsigned long value; }; +WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry, + wxIntegerHash, wxIntegerEqual, + wxImageHistogram); + +//----------------------------------------------------------------------------- +// wxImage +//----------------------------------------------------------------------------- + class WXDLLEXPORT wxImage: public wxObject { public: wxImage(); wxImage( int width, int height ); wxImage( int width, int height, unsigned char* data, bool static_data = FALSE ); - wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY ); - wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY ); - wxImage( const wxString& name, const wxString& mimetype ); - wxImage( wxInputStream& stream, const wxString& mimetype ); + wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 ); + wxImage( const wxString& name, const wxString& mimetype, int index = -1 ); + +#if wxUSE_STREAMS + wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 ); + wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 ); +#endif // wxUSE_STREAMS wxImage( const wxImage& image ); wxImage( const wxImage* image ); +#if wxUSE_GUI + // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead): wxImage( const wxBitmap &bitmap ); - operator wxBitmap() const { return ConvertToBitmap(); } wxBitmap ConvertToBitmap() const; #ifdef __WXGTK__ - wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ); + wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const; +#endif #endif void Create( int width, int height ); @@ -112,13 +131,13 @@ public: // creates an identical copy of the image (the = operator // just raises the ref count) wxImage Copy() const; - + // return the new image with size width*height wxImage GetSubImage( const wxRect& ) const; - + // pastes image into this instance and takes care of // the mask colour and out of bounds problems - void Paste( const wxImage &image, int x, int y ); + void Paste( const wxImage &image, int x, int y ); // return the new image with size width*height wxImage Scale( int width, int height ) const; @@ -138,28 +157,42 @@ public: void Replace( unsigned char r1, unsigned char g1, unsigned char b1, unsigned char r2, unsigned char g2, unsigned char b2 ); + // convert to monochrome image ( 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 ); unsigned char GetRed( int x, int y ) const; unsigned char GetGreen( int x, int y ) const; unsigned char GetBlue( int x, int y ) const; + // find first colour that is not used in the image and has higher + // RGB values than + 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 colour + bool SetMaskFromImage(const wxImage & mask, + unsigned char mr, unsigned char mg, unsigned char mb); + static bool CanRead( const wxString& name ); - virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY ); - virtual bool LoadFile( const wxString& name, const wxString& mimetype ); + 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 ); - virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY ); - virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype ); + 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, int type ); - virtual bool SaveFile( const wxString& name, const wxString& mimetype ); + 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 ); - virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ); + virtual bool SaveFile( wxOutputStream& stream, int type ) const; + virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const; #endif bool Ok() const; @@ -178,10 +211,12 @@ public: 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); @@ -190,8 +225,15 @@ public: int GetOptionInt(const wxString& name) const; bool HasOption(const wxString& name) const; - unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ); - unsigned long ComputeHistogram( wxHashTable &h ); + 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) { @@ -229,6 +271,7 @@ private: extern void WXDLLEXPORT wxInitAllImageHandlers(); +WXDLLEXPORT_DATA(extern wxImage) wxNullImage; //----------------------------------------------------------------------------- // wxImage handlers @@ -241,6 +284,10 @@ extern void WXDLLEXPORT wxInitAllImageHandlers(); #include "wx/imagjpeg.h" #include "wx/imagtiff.h" #include "wx/imagpnm.h" +#include "wx/imagxpm.h" +#include "wx/imagiff.h" + +#endif // wxUSE_IMAGE #endif // _WX_IMAGE_H_