X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a0f81e9f15fedf29e5f6cf023b4ba3f2c2d2eb46..60dd3c0916772e3e64fde7c83d359daae02b40a6:/include/wx/image.h diff --git a/include/wx/image.h b/include/wx/image.h index 51c77dbb4c..309a09f161 100644 --- a/include/wx/image.h +++ b/include/wx/image.h @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: image.h +// Name: wx/image.h // Purpose: wxImage class // Author: Robert Roebling // RCS-ID: $Id$ @@ -11,6 +11,9 @@ #define _WX_IMAGE_H_ #include "wx/defs.h" + +#if wxUSE_IMAGE + #include "wx/object.h" #include "wx/string.h" #include "wx/gdicmn.h" @@ -20,8 +23,6 @@ # include "wx/stream.h" #endif -#if wxUSE_IMAGE - // on some systems (Unixware 7.x) index is defined as a macro in the headers // which breaks the compilation below #undef index @@ -36,12 +37,27 @@ #define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(_T("ResolutionUnit")) // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT -enum +// +// NB: don't change these values, they correspond to libjpeg constants +enum wxImageResolution { + // Resolution not specified + wxIMAGE_RESOLUTION_NONE = 0, + + // Resolution specified in inches wxIMAGE_RESOLUTION_INCHES = 1, + + // Resolution specified in centimeters wxIMAGE_RESOLUTION_CM = 2 }; +// Constants for wxImage::Scale() for determining the level of quality +enum +{ + wxIMAGE_QUALITY_NORMAL = 0, + wxIMAGE_QUALITY_HIGH = 1 +}; + // alpha channel values: fully transparent, default threshold separating // transparent pixels from opaque for a few functions dealing with alpha and // fully opaque @@ -53,9 +69,18 @@ const unsigned char wxIMAGE_ALPHA_OPAQUE = 0xff; // classes //----------------------------------------------------------------------------- -class WXDLLEXPORT wxImageHandler; -class WXDLLEXPORT wxImage; -class WXDLLEXPORT wxPalette; +class WXDLLIMPEXP_FWD_CORE wxImageHandler; +class WXDLLIMPEXP_FWD_CORE wxImage; +class WXDLLIMPEXP_FWD_CORE wxPalette; + +//----------------------------------------------------------------------------- +// wxVariant support +//----------------------------------------------------------------------------- + +#if wxUSE_VARIANT +#include "wx/variant.h" +DECLARE_VARIANT_OBJECT_EXPORTED(wxImage,WXDLLEXPORT) +#endif //----------------------------------------------------------------------------- // wxImageHandler @@ -82,10 +107,10 @@ public: 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; } + const wxString& GetName() const { return m_name; } + const wxString& GetExtension() const { return m_extension; } long GetType() const { return m_type; } - wxString GetMimeType() const { return m_mime; } + const wxString& GetMimeType() const { return m_mime; } protected: #if wxUSE_STREAMS @@ -95,6 +120,13 @@ protected: bool CallDoCanRead(wxInputStream& stream); #endif // wxUSE_STREAMS + // helper for the derived classes SaveFile() implementations: returns the + // values of x- and y-resolution options specified as the image options if + // any + static wxImageResolution + GetResolutionFromOptions(const wxImage& image, int *x, int *y); + + wxString m_name; wxString m_extension; wxString m_mime; @@ -182,8 +214,7 @@ public: wxImage( int width, int height, unsigned char* data, unsigned char* alpha, 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 ); - wxImage( const char** xpmData ); - wxImage( char** xpmData ); + wxImage( const char* const* xpmData ); #if wxUSE_STREAMS wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 ); @@ -193,7 +224,12 @@ public: 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** xpmData ); + 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)); } +#endif void Destroy(); // creates an identical copy of the image (the = operator @@ -215,12 +251,21 @@ public: void Paste( const wxImage &image, int x, int y ); // return the new image with size width*height - wxImage Scale( int width, int height ) const; + wxImage Scale( int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ) const; + + // box averager and bicubic filters for up/down sampling + wxImage ResampleBox(int width, int height) const; + wxImage ResampleBicubic(int width, int height) const; + + // blur the image according to the specified pixel radius + wxImage Blur(int radius) const; + wxImage BlurHorizontal(int radius) const; + wxImage BlurVertical(int radius) const; wxImage ShrinkBy( int xFactor , int yFactor ) const ; // rescales the image in place - wxImage& Rescale( int width, int height ) { return *this = Scale(width, height); } + wxImage& Rescale( int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ) { return *this = Scale(width, height, quality); } // resizes the image in place wxImage& Resize( const wxSize& size, const wxPoint& pos, @@ -302,7 +347,8 @@ public: virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const; #endif - bool Ok() const; + bool Ok() const { return IsOk(); } + bool IsOk() const; int GetWidth() const; int GetHeight() const; @@ -361,11 +407,6 @@ public: // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees void RotateHue(double angle); - 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 ); @@ -397,7 +438,7 @@ protected: virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const; private: - friend class WXDLLEXPORT wxImageHandler; + friend class WXDLLIMPEXP_FWD_CORE wxImageHandler; DECLARE_DYNAMIC_CLASS(wxImage) }; @@ -416,6 +457,7 @@ extern WXDLLEXPORT_DATA(wxImage) wxNullImage; #include "wx/imaggif.h" #include "wx/imagpcx.h" #include "wx/imagjpeg.h" +#include "wx/imagtga.h" #include "wx/imagtiff.h" #include "wx/imagpnm.h" #include "wx/imagxpm.h" @@ -425,4 +467,3 @@ extern WXDLLEXPORT_DATA(wxImage) wxNullImage; #endif // _WX_IMAGE_H_ -