Fix missing documentation for several GDI functions.

[wxWidgets.git] / include / wx / image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index 893e272c2e1627596779b7d43ec962391de664fc..575b96b362f7b6bf7b112547308a41755d995cdc 100644 (file)
--- 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:      $Id$
 // Purpose:     wxImage class
 // Author:      Robert Roebling
 // RCS-ID:      $Id$


@@ -10,191 +10,626 @@
 #ifndef _WX_IMAGE_H_
 #define _WX_IMAGE_H_
 
 #ifndef _WX_IMAGE_H_
 #define _WX_IMAGE_H_
 

-#ifdef __GNUG__
-#pragma interface "image.h"
-#endif
+#include "wx/defs.h"
+
+#if wxUSE_IMAGE

 
 

-#include "wx/setup.h"

 #include "wx/object.h"
 #include "wx/string.h"
 #include "wx/gdicmn.h"
 #include "wx/object.h"
 #include "wx/string.h"
 #include "wx/gdicmn.h"

-#include "wx/bitmap.h"
+#include "wx/hashmap.h"
+#include "wx/arrstr.h"

 
 #if wxUSE_STREAMS
 #  include "wx/stream.h"
 #endif
 
 
 #if wxUSE_STREAMS
 #  include "wx/stream.h"
 #endif
 

+// on some systems (Unixware 7.x) index is defined as a macro in the headers
+// which breaks the compilation below
+#undef index
+
+#define wxIMAGE_OPTION_QUALITY               wxString(wxS("quality"))
+#define wxIMAGE_OPTION_FILENAME              wxString(wxS("FileName"))
+
+#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(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
+//
+// 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 wxImageResizeQuality
+{
+    // 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 = 4
+};
+
+// alpha channel values: fully transparent, default threshold separating
+// transparent pixels from opaque for a few functions dealing with alpha and
+// fully opaque
+const unsigned char wxIMAGE_ALPHA_TRANSPARENT = 0;
+const unsigned char wxIMAGE_ALPHA_THRESHOLD = 0x80;
+const unsigned char wxIMAGE_ALPHA_OPAQUE = 0xff;
+

 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImageHandler;
-class WXDLLEXPORT wxImage;
+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,WXDLLIMPEXP_CORE)
+#endif

 
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImageHandler: public wxObject
+class WXDLLIMPEXP_CORE wxImageHandler: public wxObject

 {
 public:
 {
 public:

-    wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
+    wxImageHandler()
+        : m_name(wxEmptyString), m_extension(wxEmptyString), m_mime(), m_type(wxBITMAP_TYPE_INVALID)
+        { }

 
 #if wxUSE_STREAMS
 
 #if wxUSE_STREAMS

-    virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
-    virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
-
-    virtual int GetImageCount( wxInputStream& stream );
-
-    bool CanRead( wxInputStream& stream ) { return DoCanRead(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 );
 #endif // wxUSE_STREAMS
 
     void SetName(const wxString& name) { m_name = name; }
     void SetExtension(const wxString& ext) { m_extension = ext; }
     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 SetAltExtensions(const wxArrayString& exts) { m_altExtensions = exts; }
+    void SetType(wxBitmapType type) { m_type = type; }

     void SetMimeType(const wxString& type) { m_mime = 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; }
+    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
 
 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;
     virtual bool DoCanRead( wxInputStream& stream ) = 0;

+
+    // save the stream position, call DoCanRead() and restore the position
+    bool CallDoCanRead(wxInputStream& stream);

 #endif // wxUSE_STREAMS
 
 #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_name;
     wxString  m_extension;

+    wxArrayString m_altExtensions;

     wxString  m_mime;
     wxString  m_mime;

-    long      m_type;
-    
+    wxBitmapType m_type;
+

 private:
     DECLARE_CLASS(wxImageHandler)
 };
 
 //-----------------------------------------------------------------------------
 private:
     DECLARE_CLASS(wxImageHandler)
 };
 
 //-----------------------------------------------------------------------------

-// wxImage
+// wxImageHistogram

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxHNode
+class WXDLLIMPEXP_CORE wxImageHistogramEntry

 {
 public:
 {
 public:

+    wxImageHistogramEntry() { index = value = 0; }

     unsigned long index;
     unsigned long value;
 };
 
     unsigned long index;
     unsigned long value;
 };
 

-class WXDLLEXPORT wxImage: public wxObject
+WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry,
+                             wxIntegerHash, wxIntegerEqual,
+                             wxImageHistogramBase);
+
+class WXDLLIMPEXP_CORE wxImageHistogram : public wxImageHistogramBase
+{
+public:
+    wxImageHistogram() : wxImageHistogramBase(256) { }
+
+    // get the key in the histogram for the given RGB values
+    static unsigned long MakeKey(unsigned char r,
+                                 unsigned char g,
+                                 unsigned char b)
+    {
+        return (r << 16) | (g << 8) | b;
+    }
+
+    // find first colour that is not used in the image and has higher
+    // RGB values than RGB(startR, startG, startB)
+    //
+    // returns true and puts this colour in r, g, b (each of which may be NULL)
+    // on success or returns false if there are no more free colours
+    bool FindFirstUnusedColour(unsigned char *r,
+                               unsigned char *g,
+                               unsigned char *b,
+                               unsigned char startR = 1,
+                               unsigned char startG = 0,
+                               unsigned char startB = 0 ) const;
+};
+
+//-----------------------------------------------------------------------------
+// wxImage
+//-----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxImage: public wxObject

 {
 public:
 {
 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( const wxImage& image );
-    wxImage( const wxImage* image );
-
-    // these functions get implemented in /src/(platform)/bitmap.cpp
-    wxImage( const wxBitmap &bitmap );
-    operator wxBitmap() const { return ConvertToBitmap(); }
-    wxBitmap ConvertToBitmap() const;
-
-    void Create( int width, int height );
+    // red, green and blue are 8 bit unsigned integers in the range of 0..255
+    // We use the identifier RGBValue instead of RGB, since RGB is #defined
+    class RGBValue
+    {
+    public:
+      RGBValue(unsigned char r=0, unsigned char g=0, unsigned char b=0)
+        : red(r), green(g), blue(b) {}
+        unsigned char red;
+        unsigned char green;
+        unsigned char blue;
+    };
+
+    // hue, saturation and value are doubles in the range 0.0..1.0
+    class HSVValue
+    {
+    public:
+        HSVValue(double h=0.0, double s=0.0, double v=0.0)
+            : hue(h), saturation(s), value(v) {}
+        double hue;
+        double saturation;
+        double value;
+    };
+
+    wxImage() {}
+    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 )
+        { LoadFile( stream, type, index ); }
+    wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 )
+        { LoadFile( stream, mimetype, index ); }
+#endif // wxUSE_STREAMS
+
+    bool Create( const char* const* xpmData );
+#ifdef __BORLANDC__
+    // needed for Borland 5.5
+    wxImage( char** xpmData ) { Create(const_cast<const char* const*>(xpmData)); }
+    bool Create( char** xpmData ) { return Create(const_cast<const char* const*>(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();
 
     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;
+

     // return the new image with size width*height
     // return the new image with size width*height

-    wxImage GetSubImage( const wxRect& ) const;
+    wxImage GetSubImage( const wxRect& rect) const;
+
+    // Paste the image or part of this image into an image of the given size at the pos
+    //  any newly exposed areas will be filled with the rgb colour
+    //  by default if r = g = b = -1 then fill with this image's mask colour or find and
+    //  set a suitable mask colour
+    wxImage Size( const wxSize& size, const wxPoint& pos,
+                  int r = -1, int g = -1, int b = -1 ) 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
 
     // return the new image with size width*height

-    wxImage Scale( int width, int height ) 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
+    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
 
     // rescales the image in place

-    wxImage& Rescale( int width, int height ) { return *this = Scale(width, height); }
+    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,
+                     int r = -1, int g = -1, int b = -1 ) { return *this = Size(size, pos, r, g, b); }
+
+    // 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 = NULL) const;
+
+    wxImage Rotate90( bool clockwise = true ) const;
+    wxImage Rotate180() 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 );
 
 
     // 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 greyscale image. Uses the luminance component (Y) of the image.
+    // 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 (<r,g,b> 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 );
     // 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 );
+    void SetRGB( const wxRect& rect, 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;
+
+    void SetAlpha(int x, int y, unsigned char alpha);
+    unsigned char GetAlpha(int x, int y) const;
+
+    // find first colour that is not used in the image and has higher
+    // RGB values than <startR,startG,startB>
+    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 <r,g,b> colour
+    bool SetMaskFromImage(const wxImage & mask,
+                          unsigned char mr, unsigned char mg, unsigned char mb);
+
+    // 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
+    // (actually shades of grey) typically when you draw anti-
+    // aliased text into a bitmap. The DC drawinf routines
+    // draw grey values on the black background although they
+    // actually mean to draw white with differnt alpha values.
+    // This method reverses it, assuming a black (!) background
+    // and white text (actually only the red channel is read).
+    // The method will then fill up the whole image with the
+    // colour given.
+    bool ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b );

 
     static bool CanRead( const wxString& name );
 
     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, wxBitmapType type = wxBITMAP_TYPE_ANY );
+    virtual bool LoadFile( const wxString& name, wxBitmapType 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 );
 
 #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, wxBitmapType type = wxBITMAP_TYPE_ANY );
+    virtual bool LoadFile( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );
+    virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );

 #endif
 
 #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, wxBitmapType type ) const;
+    virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;

 
 #if wxUSE_STREAMS
 
 #if wxUSE_STREAMS

-    virtual bool SaveFile( wxOutputStream& stream, int type );
-    virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
+    virtual bool SaveFile( wxOutputStream& stream, wxBitmapType type ) const;
+    virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;

 #endif
 
 #endif
 

-    bool Ok() const;
+    bool Ok() const { return IsOk(); }
+    bool IsOk() const;

     int GetWidth() const;
     int GetHeight() const;
 
     int GetWidth() const;
     int GetHeight() const;
 

-    char unsigned *GetData() const;
-    void SetData( char unsigned *data );
+    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;
+    void SetData( unsigned char *data, bool static_data=false );
+    void SetData( unsigned char *data, int new_width, int new_height, bool static_data=false );
+
+    unsigned char *GetAlpha() const;    // may return NULL!
+    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
+    bool IsTransparent(int x, int y,
+                       unsigned char threshold = wxIMAGE_ALPHA_THRESHOLD) const;

 
 

+    // Mask functions

     void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
     void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );

+    // Get the current mask colour or find a suitable colour
+    // returns true if using current mask colour
+    bool GetOrFindMaskColour( unsigned char *r, unsigned char *g, unsigned char *b ) const;

     unsigned char GetMaskRed() const;
     unsigned char GetMaskGreen() const;
     unsigned char GetMaskBlue() const;
     unsigned char GetMaskRed() const;
     unsigned char GetMaskGreen() const;
     unsigned char GetMaskBlue() const;

-    void SetMask( bool mask = TRUE );
+    void SetMask( bool mask = true );

     bool HasMask() const;
 
     bool HasMask() const;
 

-    unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 );
-    unsigned long ComputeHistogram( wxHashTable &h );
-
-    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; }
+#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;
+
+    // Rotates the hue of each pixel of the image. angle is a double in the range
+    // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees
+    void RotateHue(double angle);

 
     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 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 *FindHandler( const wxString& extension, wxBitmapType imageType );
+    static wxImageHandler *FindHandler( wxBitmapType imageType );
+

     static wxImageHandler *FindHandlerMime( const wxString& mimetype );
 
     static wxImageHandler *FindHandlerMime( const wxString& mimetype );
 

+    static wxString GetImageExtWildcard();
+

     static void CleanUpHandlers();
     static void InitStandardHandlers();
 
     static void CleanUpHandlers();
     static void InitStandardHandlers();
 

+    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:
 protected:

-    static wxList sm_handlers;
+    static wxList   sm_handlers;
+
+    // return the index of the point with the given coordinates or -1 if the
+    // image is invalid of the coordinates are out of range
+    //
+    // note that index must be multiplied by 3 when using it with RGB array
+    long XYToIndex(int x, int y) const;
+
+    virtual wxObjectRefData* CreateRefData() const;
+    virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;

 
 private:
 
 private:

-    friend class WXDLLEXPORT wxImageHandler;
+    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)
 };
 
 
 
     DECLARE_DYNAMIC_CLASS(wxImage)
 };
 
 

-extern void WXDLLEXPORT wxInitAllImageHandlers();
+extern void WXDLLIMPEXP_CORE wxInitAllImageHandlers();

 
 

+extern WXDLLIMPEXP_DATA_CORE(wxImage)    wxNullImage;

 
 //-----------------------------------------------------------------------------
 // wxImage handlers
 
 //-----------------------------------------------------------------------------
 // wxImage handlers


@@ -205,9 +640,13 @@ extern void WXDLLEXPORT wxInitAllImageHandlers();
 #include "wx/imaggif.h"
 #include "wx/imagpcx.h"
 #include "wx/imagjpeg.h"
 #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/imagtiff.h"
 #include "wx/imagpnm.h"

+#include "wx/imagxpm.h"
+#include "wx/imagiff.h"
+
+#endif // wxUSE_IMAGE

 
 #endif
   // _WX_IMAGE_H_
 
 #endif
   // _WX_IMAGE_H_

-