X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e98e625cbbe269f109b2296a045a657cba00fede..ab67e8874db324fab5223cc8d5dff8a8de3e2b77:/include/wx/image.h?ds=sidebyside diff --git a/include/wx/image.h b/include/wx/image.h index 07fe116d72..4ca8379f80 100644 --- a/include/wx/image.h +++ b/include/wx/image.h @@ -18,6 +18,7 @@ #include "wx/string.h" #include "wx/gdicmn.h" #include "wx/hashmap.h" +#include "wx/arrstr.h" #if wxUSE_STREAMS # include "wx/stream.h" @@ -27,14 +28,20 @@ // which breaks the compilation below #undef index -#define wxIMAGE_OPTION_QUALITY wxString(_T("quality")) -#define wxIMAGE_OPTION_FILENAME wxString(_T("FileName")) +#define wxIMAGE_OPTION_QUALITY wxString(wxS("quality")) +#define wxIMAGE_OPTION_FILENAME wxString(wxS("FileName")) -#define wxIMAGE_OPTION_RESOLUTION wxString(_T("Resolution")) -#define wxIMAGE_OPTION_RESOLUTIONX wxString(_T("ResolutionX")) -#define wxIMAGE_OPTION_RESOLUTIONY wxString(_T("ResolutionY")) +#define wxIMAGE_OPTION_RESOLUTION wxString(wxS("Resolution")) +#define wxIMAGE_OPTION_RESOLUTIONX wxString(wxS("ResolutionX")) +#define wxIMAGE_OPTION_RESOLUTIONY wxString(wxS("ResolutionY")) -#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(_T("ResolutionUnit")) +#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(wxS("ResolutionUnit")) + +#define wxIMAGE_OPTION_MAX_WIDTH wxString(wxS("MaxWidth")) +#define wxIMAGE_OPTION_MAX_HEIGHT wxString(wxS("MaxHeight")) + +#define wxIMAGE_OPTION_ORIGINAL_WIDTH wxString(wxS("OriginalWidth")) +#define wxIMAGE_OPTION_ORIGINAL_HEIGHT wxString(wxS("OriginalHeight")) // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT // @@ -52,10 +59,19 @@ enum wxImageResolution }; // Constants for wxImage::Scale() for determining the level of quality -enum +enum wxImageResizeQuality { - wxIMAGE_QUALITY_NORMAL = 0, - wxIMAGE_QUALITY_HIGH = 1 + // different image resizing algorithms used by Scale() and Rescale() + wxIMAGE_QUALITY_NEAREST = 0, + wxIMAGE_QUALITY_BILINEAR = 1, + wxIMAGE_QUALITY_BICUBIC = 2, + wxIMAGE_QUALITY_BOX_AVERAGE = 3, + + // default quality is low (but fast) + wxIMAGE_QUALITY_NORMAL = wxIMAGE_QUALITY_NEAREST, + + // highest (but best) quality + wxIMAGE_QUALITY_HIGH }; // alpha channel values: fully transparent, default threshold separating @@ -94,10 +110,17 @@ public: { } #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 ); - - virtual int GetImageCount( wxInputStream& stream ); + // NOTE: LoadFile and SaveFile are not pure virtuals to allow derived classes + // to implement only one of the two + virtual bool LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), + bool WXUNUSED(verbose)=true, int WXUNUSED(index)=-1 ) + { return false; } + virtual bool SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), + bool WXUNUSED(verbose)=true ) + { return false; } + + int GetImageCount( wxInputStream& stream ); + // save the stream position, call DoGetImageCount() and restore the position bool CanRead( wxInputStream& stream ) { return CallDoCanRead(stream); } bool CanRead( const wxString& name ); @@ -105,15 +128,30 @@ public: void SetName(const wxString& name) { m_name = name; } void SetExtension(const wxString& ext) { m_extension = ext; } + void SetAltExtensions(const wxArrayString& exts) { m_altExtensions = exts; } void SetType(wxBitmapType type) { m_type = type; } void SetMimeType(const wxString& type) { m_mime = type; } const wxString& GetName() const { return m_name; } const wxString& GetExtension() const { return m_extension; } + const wxArrayString& GetAltExtensions() const { return m_altExtensions; } wxBitmapType GetType() const { return m_type; } const wxString& GetMimeType() const { return m_mime; } +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED( + void SetType(long type) { SetType((wxBitmapType)type); } + ) +#endif // WXWIN_COMPATIBILITY_2_8 + protected: #if wxUSE_STREAMS + // NOTE: this function is allowed to change the current stream position + // since GetImageCount() will take care of restoring it later + virtual int DoGetImageCount( wxInputStream& WXUNUSED(stream) ) + { return 1; } // default return value is 1 image + + // NOTE: this function is allowed to change the current stream position + // since CallDoCanRead() will take care of restoring it later virtual bool DoCanRead( wxInputStream& stream ) = 0; // save the stream position, call DoCanRead() and restore the position @@ -129,6 +167,7 @@ protected: wxString m_name; wxString m_extension; + wxArrayString m_altExtensions; wxString m_mime; wxBitmapType m_type; @@ -209,29 +248,59 @@ public: }; wxImage() {} - wxImage( int width, int height, bool clear = true ); - wxImage( int width, int height, unsigned char* data, bool static_data = false ); - wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false ); - wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 ); - wxImage( const wxString& name, const wxString& mimetype, int index = -1 ); - wxImage( const char* const* xpmData ); + wxImage( int width, int height, bool clear = true ) + { Create( width, height, clear ); } + wxImage( int width, int height, unsigned char* data, bool static_data = false ) + { Create( width, height, data, static_data ); } + wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false ) + { Create( width, height, data, alpha, static_data ); } + + // ctor variants using wxSize: + wxImage( const wxSize& sz, bool clear = true ) + { Create( sz, clear ); } + wxImage( const wxSize& sz, unsigned char* data, bool static_data = false ) + { Create( sz, data, static_data ); } + wxImage( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false ) + { Create( sz, data, alpha, static_data ); } + + wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 ) + { LoadFile( name, type, index ); } + wxImage( const wxString& name, const wxString& mimetype, int index = -1 ) + { LoadFile( name, mimetype, index ); } + wxImage( const char* const* xpmData ) + { Create(xpmData); } #if wxUSE_STREAMS - wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 ); - wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 ); + wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 ) + { LoadFile( stream, type, index ); } + wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 ) + { LoadFile( stream, mimetype, index ); } #endif // wxUSE_STREAMS - bool Create( int width, int height, bool clear = true ); - bool Create( int width, int height, unsigned char* data, bool static_data = false ); - bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false ); bool Create( const char* const* xpmData ); #ifdef __BORLANDC__ // needed for Borland 5.5 - wxImage( char** xpmData ) { Create(wx_const_cast(const char* const*, xpmData)); } - bool Create( char** xpmData ) { return Create(wx_const_cast(const char* const*, xpmData)); } + wxImage( char** xpmData ) { Create(const_cast(xpmData)); } + bool Create( char** xpmData ) { return Create(const_cast(xpmData)); } #endif + + bool Create( int width, int height, bool clear = true ); + bool Create( int width, int height, unsigned char* data, bool static_data = false ); + bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false ); + + // Create() variants using wxSize: + bool Create( const wxSize& sz, bool clear = true ) + { return Create(sz.GetWidth(), sz.GetHeight(), clear); } + bool Create( const wxSize& sz, unsigned char* data, bool static_data = false ) + { return Create(sz.GetWidth(), sz.GetHeight(), data, static_data); } + bool Create( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false ) + { return Create(sz.GetWidth(), sz.GetHeight(), data, alpha, static_data); } + void Destroy(); + // initialize the image data with zeroes + void Clear(unsigned char value = 0); + // creates an identical copy of the image (the = operator // just raises the ref count) wxImage Copy() const; @@ -251,10 +320,13 @@ public: void Paste( const wxImage &image, int x, int y ); // return the new image with size width*height - wxImage Scale( int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ) const; + wxImage Scale( int width, int height, + wxImageResizeQuality quality = wxIMAGE_QUALITY_NORMAL ) const; // box averager and bicubic filters for up/down sampling + wxImage ResampleNearest(int width, int height) const; wxImage ResampleBox(int width, int height) const; + wxImage ResampleBilinear(int width, int height) const; wxImage ResampleBicubic(int width, int height) const; // blur the image according to the specified pixel radius @@ -265,7 +337,9 @@ public: wxImage ShrinkBy( int xFactor , int yFactor ) const ; // rescales the image in place - wxImage& Rescale( int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ) { return *this = Scale(width, height, quality); } + wxImage& Rescale( int width, int height, + wxImageResizeQuality quality = wxIMAGE_QUALITY_NORMAL ) + { return *this = Scale(width, height, quality); } // resizes the image in place wxImage& Resize( const wxSize& size, const wxPoint& pos, @@ -274,9 +348,10 @@ 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 = NULL) const; wxImage Rotate90( bool clockwise = true ) const; + wxImage Rotate180() const; wxImage Mirror( bool horizontally = true ) const; // replace one colour with another @@ -284,13 +359,17 @@ public: unsigned char r2, unsigned char g2, unsigned char b2 ); // Convert to greyscale image. Uses the luminance component (Y) of the image. - // The luma value (YUV) is calculated using (R * lr) + (G * lg) + (B * lb), defaults to ITU-T BT.601 - wxImage ConvertToGreyscale( double lr = 0.299, double lg = 0.587, double lb = 0.114 ) const; + // The luma value (YUV) is calculated using (R * weight_r) + (G * weight_g) + (B * weight_b), defaults to ITU-T BT.601 + wxImage ConvertToGreyscale(double weight_r, double weight_g, double weight_b) const; + wxImage ConvertToGreyscale(void) const; // 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; + // Convert to disabled (dimmed) image. + wxImage ConvertToDisabled(unsigned char brightness = 255) 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 ); @@ -310,9 +389,13 @@ public: 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: + // converts image's alpha channel to mask (choosing mask colour + // automatically or using the specified colour for the mask), if it has + // any, does nothing otherwise: bool ConvertAlphaToMask(unsigned char threshold = wxIMAGE_ALPHA_THRESHOLD); + bool ConvertAlphaToMask(unsigned char mr, unsigned char mg, unsigned char mb, + unsigned char threshold = wxIMAGE_ALPHA_THRESHOLD); + // This method converts an image where the original alpha // information is only available as a shades of a colour @@ -352,6 +435,17 @@ public: int GetWidth() const; int GetHeight() const; + wxSize GetSize() const + { return wxSize(GetWidth(), GetHeight()); } + + // Gets the type of image found by LoadFile or specified with SaveFile + wxBitmapType GetType() const; + + // Set the image type, this is normally only called if the image is being + // created from data in the given format but not using LoadFile() (e.g. + // wxGIFDecoder uses this) + void SetType(wxBitmapType type); + // these functions provide fastest access to wxImage data but should be // used carefully as no checks are done unsigned char *GetData() const; @@ -362,6 +456,7 @@ public: bool HasAlpha() const { return GetAlpha() != NULL; } void SetAlpha(unsigned char *alpha = NULL, bool static_data=false); void InitAlpha(); + void ClearAlpha(); // return true if this pixel is masked or has alpha less than specified // threshold @@ -414,6 +509,7 @@ public: static wxImageHandler *FindHandler( const wxString& name ); static wxImageHandler *FindHandler( const wxString& extension, wxBitmapType imageType ); static wxImageHandler *FindHandler( wxBitmapType imageType ); + static wxImageHandler *FindHandlerMime( const wxString& mimetype ); static wxString GetImageExtWildcard(); @@ -424,6 +520,65 @@ public: static HSVValue RGBtoHSV(const RGBValue& rgb); static RGBValue HSVtoRGB(const HSVValue& hsv); +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED_CONSTRUCTOR( + wxImage(const wxString& name, long type, int index = -1) + { + LoadFile(name, (wxBitmapType)type, index); + } + ) + +#if wxUSE_STREAMS + wxDEPRECATED_CONSTRUCTOR( + wxImage(wxInputStream& stream, long type, int index = -1) + { + LoadFile(stream, (wxBitmapType)type, index); + } + ) + + wxDEPRECATED( + bool LoadFile(wxInputStream& stream, long type, int index = -1) + { + return LoadFile(stream, (wxBitmapType)type, index); + } + ) + + wxDEPRECATED( + bool SaveFile(wxOutputStream& stream, long type) const + { + return SaveFile(stream, (wxBitmapType)type); + } + ) +#endif // wxUSE_STREAMS + + wxDEPRECATED( + bool LoadFile(const wxString& name, long type, int index = -1) + { + return LoadFile(name, (wxBitmapType)type, index); + } + ) + + wxDEPRECATED( + bool SaveFile(const wxString& name, long type) const + { + return SaveFile(name, (wxBitmapType)type); + } + ) + + static wxDEPRECATED( + wxImageHandler *FindHandler(const wxString& ext, long type) + { + return FindHandler(ext, (wxBitmapType)type); + } + ) + + static wxDEPRECATED( + wxImageHandler *FindHandler(long imageType) + { + return FindHandler((wxBitmapType)imageType); + } + ) +#endif // WXWIN_COMPATIBILITY_2_8 protected: static wxList sm_handlers; @@ -440,6 +595,34 @@ protected: private: friend class WXDLLIMPEXP_FWD_CORE wxImageHandler; + // Possible values for MakeEmptyClone() flags. + enum + { + // Create an image with the same orientation as this one. This is the + // default and only exists for symmetry with SwapOrientation. + Clone_SameOrientation = 0, + + // Create an image with the same height as this image width and the + // same width as this image height. + Clone_SwapOrientation = 1 + }; + + // Returns a new blank image with the same dimensions (or with width and + // height swapped if Clone_SwapOrientation flag is given), alpha, and mask + // as this image itself. This is used by several functions creating + // modified versions of this image. + wxImage MakeEmptyClone(int flags = Clone_SameOrientation) const; + +#if wxUSE_STREAMS + // read the image from the specified stream updating image type if + // successful + bool DoLoad(wxImageHandler& handler, wxInputStream& stream, int index); + + // write the image to the specified stream and also update the image type + // if successful + bool DoSave(wxImageHandler& handler, wxOutputStream& stream) const; +#endif // wxUSE_STREAMS + DECLARE_DYNAMIC_CLASS(wxImage) };