X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/01111366c9b4ea40eee7f4b13ddfe6f6b9f886db..35f6182b391ebe3b7f448683d480a636f0869f43:/include/wx/image.h diff --git a/include/wx/image.h b/include/wx/image.h index dd8a5e9754..6df67faa3c 100644 --- a/include/wx/image.h +++ b/include/wx/image.h @@ -4,7 +4,7 @@ // Author: Robert Roebling // RCS-ID: $Id$ // Copyright: (c) Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_IMAGE_H_ @@ -18,14 +18,22 @@ #include "wx/object.h" #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 //----------------------------------------------------------------------------- class WXDLLEXPORT wxImageHandler; -class WXDLLEXPORT wxPNGHandler; -class WXDLLEXPORT wxBMPHandler; class WXDLLEXPORT wxImage; //----------------------------------------------------------------------------- @@ -34,129 +42,256 @@ class WXDLLEXPORT wxImage; class WXDLLEXPORT wxImageHandler: public wxObject { - DECLARE_DYNAMIC_CLASS(wxImageHandler) - public: - wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; } - - virtual bool LoadFile( wxImage *image, const wxString& name ); - virtual bool SaveFile( wxImage *image, const wxString& name ); - - inline void SetName(const wxString& name) { m_name = name; } - inline void SetExtension(const wxString& ext) { m_extension = ext; } - inline void SetType(long type) { m_type = type; } - inline wxString GetName() const { return m_name; } - inline wxString GetExtension() const { return m_extension; } - inline long GetType() const { return m_type; } - -protected: - wxString m_name; - wxString m_extension; - long m_type; - -}; + wxImageHandler() + : m_name(""), m_extension(""), m_mime(), m_type(0) + { } -//----------------------------------------------------------------------------- -// wxPNGHandler -//----------------------------------------------------------------------------- +#if wxUSE_STREAMS + virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=-1 ); + virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE ); -class WXDLLEXPORT wxPNGHandler: public wxImageHandler -{ - DECLARE_DYNAMIC_CLASS(wxPNGHandler) - -public: + virtual int GetImageCount( wxInputStream& stream ); - inline wxPNGHandler() - { - m_name = "PNG file"; - m_extension = "png"; - m_type = wxBITMAP_TYPE_PNG; - }; + bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); } + bool CanRead( const wxString& name ); +#endif // wxUSE_STREAMS + + void SetName(const wxString& name) { m_name = name; } + void SetExtension(const wxString& ext) { m_extension = ext; } + void SetType(long type) { m_type = type; } + void SetMimeType(const wxString& type) { m_mime = type; } + wxString GetName() const { return m_name; } + wxString GetExtension() const { return m_extension; } + long GetType() const { return m_type; } + wxString GetMimeType() const { return m_mime; } - virtual bool LoadFile( wxImage *image, const wxString& name ); - virtual bool SaveFile( wxImage *image, const wxString& name ); +protected: +#if wxUSE_STREAMS + virtual bool DoCanRead( wxInputStream& stream ) = 0; +#endif // wxUSE_STREAMS + + wxString m_name; + wxString m_extension; + wxString m_mime; + long m_type; + +private: + DECLARE_CLASS(wxImageHandler) }; //----------------------------------------------------------------------------- -// wxBMPHandler +// wxImageHistogram //----------------------------------------------------------------------------- -class WXDLLEXPORT wxBMPHandler: public wxImageHandler +class WXDLLEXPORT wxImageHistogramEntry { - DECLARE_DYNAMIC_CLASS(wxBMPHandler) - public: + wxImageHistogramEntry() : index(0), value(0) {} + unsigned long index; + unsigned long value; +}; - inline wxBMPHandler() - { - m_name = "BMP file"; - m_extension = "bmp"; - m_type = wxBITMAP_TYPE_BMP; - }; +WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry, + wxIntegerHash, wxIntegerEqual, + wxImageHistogram); - virtual bool LoadFile( wxImage *image, const wxString& name ); -}; //----------------------------------------------------------------------------- // wxImage //----------------------------------------------------------------------------- class WXDLLEXPORT wxImage: public wxObject { - DECLARE_DYNAMIC_CLASS(wxImage) +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, int index = -1 ); + wxImage( const wxString& name, const wxString& mimetype, int index = -1 ); - friend class WXDLLEXPORT wxImageHandler; +#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 -public: + wxImage( const wxImage& image ); + wxImage( const wxImage* image ); + +#if WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI + // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead): + wxImage( const wxBitmap &bitmap ); + wxBitmap ConvertToBitmap() const; +#ifdef __WXGTK__ + 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; + + // rescales the image in place + wxImage& Rescale( int width, int height ) { return *this = Scale(width, height); } + + // 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; + + wxImage Rotate90( bool clockwise = TRUE ) const; + wxImage Mirror( bool horizontally = TRUE ) const; - 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(); + // 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 ) 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 ); + 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; + + 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; + 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) + { return m_refData == image.m_refData; } + bool operator != (const wxImage& image) + { 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 void CleanUpHandlers(); + static void InitStandardHandlers(); protected: + static wxList sm_handlers; + +private: + friend class WXDLLEXPORT wxImageHandler; - static wxList sm_handlers; - + DECLARE_DYNAMIC_CLASS(wxImage) }; + +extern void WXDLLEXPORT wxInitAllImageHandlers(); + +WXDLLEXPORT_DATA(extern wxImage) wxNullImage; + +//----------------------------------------------------------------------------- +// wxImage handlers +//----------------------------------------------------------------------------- + +#include "wx/imagbmp.h" +#include "wx/imagpng.h" +#include "wx/imaggif.h" +#include "wx/imagpcx.h" +#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_ +