X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7a632f1056d7894daca7342394c1db9b61f6aecf..5d644707ca96dcaa63dc5a24c9eb5c2b7ee0b50d:/include/wx/image.h diff --git a/include/wx/image.h b/include/wx/image.h index 09aa6ed4a2..7718cacdeb 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 //----------------------------------------------------------------------------- @@ -38,15 +43,17 @@ class WXDLLEXPORT wxImage; class WXDLLEXPORT wxImageHandler: public wxObject { public: - wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; } + wxImageHandler() + : m_name(""), m_extension(""), m_mime(), 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 ); - bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); } + bool CanRead( wxInputStream& stream ) { return CallDoCanRead(stream); } bool CanRead( const wxString& name ); #endif // wxUSE_STREAMS @@ -62,55 +69,81 @@ public: protected: #if wxUSE_STREAMS virtual bool DoCanRead( wxInputStream& stream ) = 0; + + // save the stream position, call DoCanRead() and restore the position + bool CallDoCanRead(wxInputStream& stream); #endif // wxUSE_STREAMS wxString m_name; 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( 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( int width, int height, unsigned char* data, bool static_data = FALSE ); + 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 ); - // these functions get implemented in /src/(platform)/bitmap.cpp +#if WXWIN_COMPATIBILITY_2_2 && 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 ); + void Create( int width, int height, unsigned char* data, bool static_data = FALSE ); void Destroy(); + // 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 ); + // return the new image with size width*height wxImage Scale( int width, int height ) const; @@ -120,34 +153,52 @@ public: // Rotates the image about the given point, 'angle' radians. // Returns the rotated image, leaving this image intact. wxImage Rotate(double angle, const wxPoint & centre_of_rotation, - bool interpolating = TRUE, wxPoint * offset_after_rotation = (wxPoint*) NULL) const ; + bool interpolating = TRUE, wxPoint * offset_after_rotation = (wxPoint*) NULL) const; + + wxImage Rotate90( bool clockwise = TRUE ) const; + wxImage Mirror( bool horizontally = TRUE ) const; // 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 ( 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 ); - unsigned char GetGreen( int x, int y ); - unsigned char GetBlue( int x, int y ); + 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 ) 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 ); - 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; @@ -156,7 +207,9 @@ public: char unsigned *GetData() const; void SetData( char unsigned *data ); + void SetData( char unsigned *data, int new_width, int new_height ); + // Mask functions void SetMaskColour( unsigned char r, unsigned char g, unsigned char b ); unsigned char GetMaskRed() const; unsigned char GetMaskGreen() const; @@ -164,8 +217,29 @@ public: void SetMask( bool mask = TRUE ); bool HasMask() const; - unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ); - unsigned long ComputeHistogram( wxHashTable &h ); +#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) { @@ -192,7 +266,7 @@ public: static void InitStandardHandlers(); protected: - static wxList sm_handlers; + static wxList sm_handlers; private: friend class WXDLLEXPORT wxImageHandler; @@ -203,6 +277,7 @@ private: extern void WXDLLEXPORT wxInitAllImageHandlers(); +WXDLLEXPORT_DATA(extern wxImage) wxNullImage; //----------------------------------------------------------------------------- // wxImage handlers @@ -215,6 +290,10 @@ 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_