re-renamed DoCreate() to XmDoCreateTLW() to avoid virtual function hiding in other...

[wxWidgets.git] / src / common / image.cpp

diff --git a/src/common/image.cpp b/src/common/image.cpp
index 289eb7875980949967ba65842e51449728a05418..43634787ce77bc783c6353a6e2fdd51613abc35b 100644 (file)
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "image.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -32,15 +28,15 @@
 #include "wx/intl.h"
 #include "wx/module.h"
 #include "wx/hash.h"
 #include "wx/intl.h"
 #include "wx/module.h"
 #include "wx/hash.h"

+#include "wx/utils.h"
+#include "wx/math.h"

 
 

-// For memcpy
-#include <string.h>
-#include <math.h>
-
-#ifdef __SALFORDC__
-    #undef FAR
+#if wxUSE_XPM
+#include "wx/xpmdecod.h"

 #endif
 
 #endif
 

+// For memcpy
+#include <string.h>

 
 //-----------------------------------------------------------------------------
 // wxImage
 
 //-----------------------------------------------------------------------------
 // wxImage


@@ -63,8 +59,13 @@ public:
     unsigned char  *m_alpha;
 
     bool            m_ok;
     unsigned char  *m_alpha;
 
     bool            m_ok;

+
+    // if true, m_data is pointer to static data and shouldn't be freed

     bool            m_static;
 
     bool            m_static;
 

+    // same as m_static but for m_alpha
+    bool            m_staticAlpha;
+

 #if wxUSE_PALETTE
     wxPalette       m_palette;
 #endif // wxUSE_PALETTE
 #if wxUSE_PALETTE
     wxPalette       m_palette;
 #endif // wxUSE_PALETTE


@@ -85,18 +86,19 @@ wxImageRefData::wxImageRefData()
     m_maskRed = 0;
     m_maskGreen = 0;
     m_maskBlue = 0;
     m_maskRed = 0;
     m_maskGreen = 0;
     m_maskBlue = 0;

-    m_hasMask = FALSE;
+    m_hasMask = false;

 
 

-    m_ok = FALSE;
-    m_static = FALSE;
+    m_ok = false;
+    m_static =
+    m_staticAlpha = false;

 }
 
 wxImageRefData::~wxImageRefData()
 {
     if ( !m_static )
         free( m_data );
 }
 
 wxImageRefData::~wxImageRefData()
 {
     if ( !m_static )
         free( m_data );

-
-    free(m_alpha);
+    if ( !m_staticAlpha )
+        free( m_alpha );

 }
 
 wxList wxImage::sm_handlers;
 }
 
 wxList wxImage::sm_handlers;


@@ -109,10 +111,6 @@ wxImage wxNullImage;
 
 IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
 

-wxImage::wxImage()
-{
-}
-

 wxImage::wxImage( int width, int height, bool clear )
 {
     Create( width, height, clear );
 wxImage::wxImage( int width, int height, bool clear )
 {
     Create( width, height, clear );


@@ -123,6 +121,11 @@ wxImage::wxImage( int width, int height, unsigned char* data, bool static_data )
     Create( width, height, data, static_data );
 }
 
     Create( width, height, data, static_data );
 }
 

+wxImage::wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data )
+{
+    Create( width, height, data, alpha, static_data );
+}
+

 wxImage::wxImage( const wxString& name, long type, int index )
 {
     LoadFile( name, type, index );
 wxImage::wxImage( const wxString& name, long type, int index )
 {
     LoadFile( name, type, index );


@@ -156,45 +159,85 @@ wxImage::wxImage( const wxImage* image )
     if (image) Ref(*image);
 }
 
     if (image) Ref(*image);
 }
 

-void wxImage::Create( int width, int height, bool clear )
+wxImage::wxImage( const char** xpmData )
+{
+    Create(xpmData);
+}
+
+wxImage::wxImage( char** xpmData )
+{
+    Create((const char**) xpmData);
+}
+
+bool wxImage::Create( const char** xpmData )
+{
+#if wxUSE_XPM
+    UnRef();
+
+    wxXPMDecoder decoder;
+    (*this) = decoder.ReadData(xpmData);
+    return Ok();
+#else
+    return false;
+#endif
+}
+
+bool wxImage::Create( int width, int height, bool clear )

 {
     UnRef();
 
     m_refData = new wxImageRefData();
 
     M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 );
 {
     UnRef();
 
     m_refData = new wxImageRefData();
 
     M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 );

-    if (M_IMGDATA->m_data)
-    {
-        if (clear) memset(M_IMGDATA->m_data, 0, width*height*3);
-
-        M_IMGDATA->m_width = width;
-        M_IMGDATA->m_height = height;
-        M_IMGDATA->m_ok = TRUE;
-    }
-    else
+    if (!M_IMGDATA->m_data)

     {
         UnRef();
     {
         UnRef();

+        return false;

     }
     }

+
+    if (clear)
+        memset(M_IMGDATA->m_data, 0, width*height*3);
+
+    M_IMGDATA->m_width = width;
+    M_IMGDATA->m_height = height;
+    M_IMGDATA->m_ok = true;
+
+    return true;

 }
 
 }
 

-void wxImage::Create( int width, int height, unsigned char* data, bool static_data )
+bool wxImage::Create( int width, int height, unsigned char* data, bool static_data )

 {
     UnRef();
 
 {
     UnRef();
 

+    wxCHECK_MSG( data, false, _T("NULL data in wxImage::Create") );
+

     m_refData = new wxImageRefData();
 
     M_IMGDATA->m_data = data;
     m_refData = new wxImageRefData();
 
     M_IMGDATA->m_data = data;

-    if (M_IMGDATA->m_data)
-    {
-        M_IMGDATA->m_width = width;
-        M_IMGDATA->m_height = height;
-        M_IMGDATA->m_ok = TRUE;
-        M_IMGDATA->m_static = static_data;
-    }
-    else
-    {
-        UnRef();
-    }
+    M_IMGDATA->m_width = width;
+    M_IMGDATA->m_height = height;
+    M_IMGDATA->m_ok = true;
+    M_IMGDATA->m_static = static_data;
+
+    return true;
+}
+
+bool wxImage::Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data )
+{
+    UnRef();
+
+    wxCHECK_MSG( data, false, _T("NULL data in wxImage::Create") );
+
+    m_refData = new wxImageRefData();
+
+    M_IMGDATA->m_data = data;
+    M_IMGDATA->m_alpha = alpha;
+    M_IMGDATA->m_width = width;
+    M_IMGDATA->m_height = height;
+    M_IMGDATA->m_ok = true;
+    M_IMGDATA->m_static = static_data;
+
+    return true;

 }
 
 void wxImage::Destroy()
 }
 
 void wxImage::Destroy()


@@ -219,6 +262,11 @@ wxImage wxImage::Copy() const
 
     memcpy( data, GetData(), M_IMGDATA->m_width*M_IMGDATA->m_height*3 );
 
 
     memcpy( data, GetData(), M_IMGDATA->m_width*M_IMGDATA->m_height*3 );
 

+    // also copy the image options
+    wxImageRefData *imgData = (wxImageRefData *)image.m_refData;
+    imgData->m_optionNames = M_IMGDATA->m_optionNames;
+    imgData->m_optionValues = M_IMGDATA->m_optionValues;
+

     return image;
 }
 
     return image;
 }
 


@@ -226,7 +274,7 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
 {
     if( xFactor == 1 && yFactor == 1 )
         return Copy() ;
 {
     if( xFactor == 1 && yFactor == 1 )
         return Copy() ;

-        
+

     wxImage image;
 
     wxCHECK_MSG( Ok(), image, wxT("invalid image") );
     wxImage image;
 
     wxCHECK_MSG( Ok(), image, wxT("invalid image") );


@@ -237,7 +285,7 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
 
     long old_height = M_IMGDATA->m_height,
          old_width  = M_IMGDATA->m_width;
 
     long old_height = M_IMGDATA->m_height,
          old_width  = M_IMGDATA->m_width;

-         
+

     wxCHECK_MSG( (old_height > 0) && (old_width > 0), image,
                  wxT("invalid old image size") );
 
     wxCHECK_MSG( (old_height > 0) && (old_width > 0), image,
                  wxT("invalid old image size") );
 


@@ -254,20 +302,32 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
     unsigned char maskRed = 0;
     unsigned char maskGreen = 0;
     unsigned char maskBlue =0 ;
     unsigned char maskRed = 0;
     unsigned char maskGreen = 0;
     unsigned char maskBlue =0 ;

+
+    unsigned char *source_data = M_IMGDATA->m_data;
+    unsigned char *target_data = data;
+    unsigned char *source_alpha = 0 ;
+    unsigned char *target_alpha = 0 ;

     if (M_IMGDATA->m_hasMask)
     {
         hasMask = true ;
         maskRed = M_IMGDATA->m_maskRed;
         maskGreen = M_IMGDATA->m_maskGreen;
         maskBlue =M_IMGDATA->m_maskBlue ;
     if (M_IMGDATA->m_hasMask)
     {
         hasMask = true ;
         maskRed = M_IMGDATA->m_maskRed;
         maskGreen = M_IMGDATA->m_maskGreen;
         maskBlue =M_IMGDATA->m_maskBlue ;

-      
+

         image.SetMaskColour( M_IMGDATA->m_maskRed,
                              M_IMGDATA->m_maskGreen,
                              M_IMGDATA->m_maskBlue );
     }
         image.SetMaskColour( M_IMGDATA->m_maskRed,
                              M_IMGDATA->m_maskGreen,
                              M_IMGDATA->m_maskBlue );
     }

-    char unsigned *source_data = M_IMGDATA->m_data;
-    char unsigned *target_data = data;
-    
+    else
+    {
+        source_alpha = M_IMGDATA->m_alpha ;
+        if ( source_alpha )
+        {
+            image.SetAlpha() ;
+            target_alpha = image.GetAlpha() ;
+        }
+    }
+

     for (long y = 0; y < height; y++)
     {
         for (long x = 0; x < width; x++)
     for (long y = 0; y < height; y++)
     {
         for (long x = 0; x < width; x++)


@@ -275,6 +335,7 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
             unsigned long avgRed = 0 ;
             unsigned long avgGreen = 0;
             unsigned long avgBlue = 0;
             unsigned long avgRed = 0 ;
             unsigned long avgGreen = 0;
             unsigned long avgBlue = 0;

+            unsigned long avgAlpha = 0 ;

             unsigned long counter = 0 ;
             // determine average
             for ( int y1 = 0 ; y1 < yFactor ; ++y1 )
             unsigned long counter = 0 ;
             // determine average
             for ( int y1 = 0 ; y1 < yFactor ; ++y1 )


@@ -286,11 +347,18 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
                     unsigned char red = pixel[0] ;
                     unsigned char green = pixel[1] ;
                     unsigned char blue = pixel[2] ;
                     unsigned char red = pixel[0] ;
                     unsigned char green = pixel[1] ;
                     unsigned char blue = pixel[2] ;

+                    unsigned char alpha = 255  ;
+                    if ( source_alpha )
+                        alpha = *(source_alpha + y_offset + x * xFactor + x1) ;

                     if ( !hasMask || red != maskRed || green != maskGreen || blue != maskBlue )
                     {
                     if ( !hasMask || red != maskRed || green != maskGreen || blue != maskBlue )
                     {

-                        avgRed += red ;
-                        avgGreen += green ;
-                        avgBlue += blue ;
+                        if ( alpha > 0 )
+                        {
+                            avgRed += red ;
+                            avgGreen += green ;
+                            avgBlue += blue ;
+                        }
+                        avgAlpha += alpha ;

                         counter++ ;
                     }
                 }
                         counter++ ;
                     }
                 }


@@ -303,9 +371,11 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const
             }
             else
             {
             }
             else
             {

-                *(target_data++) = avgRed / counter ;
-                *(target_data++) = avgGreen / counter ;
-                *(target_data++) = avgBlue / counter ;
+                if ( source_alpha )
+                    *(target_alpha++) = (unsigned char)(avgAlpha / counter ) ;
+                *(target_data++) = (unsigned char)(avgRed / counter);
+                *(target_data++) = (unsigned char)(avgGreen / counter);
+                *(target_data++) = (unsigned char)(avgBlue / counter);

             }
         }
     }
             }
         }
     }


@@ -347,15 +417,26 @@ wxImage wxImage::Scale( int width, int height ) const
 
     wxCHECK_MSG( data, image, wxT("unable to create image") );
 
 
     wxCHECK_MSG( data, image, wxT("unable to create image") );
 

+    unsigned char *source_data = M_IMGDATA->m_data;
+    unsigned char *target_data = data;
+    unsigned char *source_alpha = 0 ;
+    unsigned char *target_alpha = 0 ;
+

     if (M_IMGDATA->m_hasMask)
     {
         image.SetMaskColour( M_IMGDATA->m_maskRed,
                              M_IMGDATA->m_maskGreen,
                              M_IMGDATA->m_maskBlue );
     }
     if (M_IMGDATA->m_hasMask)
     {
         image.SetMaskColour( M_IMGDATA->m_maskRed,
                              M_IMGDATA->m_maskGreen,
                              M_IMGDATA->m_maskBlue );
     }

-
-    unsigned char *source_data = M_IMGDATA->m_data;
-    unsigned char *target_data = data;
+    else
+    {
+        source_alpha = M_IMGDATA->m_alpha ;
+        if ( source_alpha )
+        {
+            image.SetAlpha() ;
+            target_alpha = image.GetAlpha() ;
+        }
+    }

 
     long x_delta = (old_width<<16) / width;
     long y_delta = (old_height<<16) / height;
 
     long x_delta = (old_width<<16) / width;
     long y_delta = (old_height<<16) / height;


@@ -366,15 +447,19 @@ wxImage wxImage::Scale( int width, int height ) const
     for ( long j = 0; j < height; j++ )
         {
         unsigned char* src_line = &source_data[(y>>16)*old_width*3];
     for ( long j = 0; j < height; j++ )
         {
         unsigned char* src_line = &source_data[(y>>16)*old_width*3];

+        unsigned char* src_alpha_line = source_alpha ? &source_alpha[(y>>16)*old_width] : 0 ;

 
         long x = 0;
         for ( long i = 0; i < width; i++ )
         {
              unsigned char* src_pixel = &src_line[(x>>16)*3];
 
         long x = 0;
         for ( long i = 0; i < width; i++ )
         {
              unsigned char* src_pixel = &src_line[(x>>16)*3];

+             unsigned char* src_alpha_pixel = source_alpha ? &src_alpha_line[(x>>16)] : 0 ;

              dest_pixel[0] = src_pixel[0];
              dest_pixel[1] = src_pixel[1];
              dest_pixel[2] = src_pixel[2];
              dest_pixel += 3;
              dest_pixel[0] = src_pixel[0];
              dest_pixel[1] = src_pixel[1];
              dest_pixel[2] = src_pixel[2];
              dest_pixel += 3;

+             if ( source_alpha )
+                *(target_alpha++) = *src_alpha_pixel ;

              x += x_delta;
         }
 
              x += x_delta;
         }
 


@@ -404,25 +489,53 @@ wxImage wxImage::Rotate90( bool clockwise ) const
 
     wxCHECK_MSG( data, image, wxT("unable to create image") );
 
 
     wxCHECK_MSG( data, image, wxT("unable to create image") );
 

+    unsigned char *source_data = M_IMGDATA->m_data;
+    unsigned char *target_data;
+    unsigned char *alpha_data = 0 ;
+    unsigned char *source_alpha = 0 ;
+    unsigned char *target_alpha = 0 ;
+

     if (M_IMGDATA->m_hasMask)
     if (M_IMGDATA->m_hasMask)

+    {

         image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
         image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );

+    }
+    else
+    {
+        source_alpha = M_IMGDATA->m_alpha ;
+        if ( source_alpha )
+        {
+            image.SetAlpha() ;
+            alpha_data = image.GetAlpha() ;
+        }
+    }

 
     long height = M_IMGDATA->m_height;
     long width  = M_IMGDATA->m_width;
 
 
     long height = M_IMGDATA->m_height;
     long width  = M_IMGDATA->m_width;
 

-    unsigned char *source_data = M_IMGDATA->m_data;
-    unsigned char *target_data;
-

     for (long j = 0; j < height; j++)
     {
         for (long i = 0; i < width; i++)
         {
             if (clockwise)
     for (long j = 0; j < height; j++)
     {
         for (long i = 0; i < width; i++)
         {
             if (clockwise)

+            {

                 target_data = data + (((i+1)*height) - j - 1)*3;
                 target_data = data + (((i+1)*height) - j - 1)*3;

+                if(source_alpha)
+                    target_alpha = alpha_data + (((i+1)*height) - j - 1);
+            }

             else
             else

+            {

                 target_data = data + ((height*(width-1)) + j - (i*height))*3;
                 target_data = data + ((height*(width-1)) + j - (i*height))*3;

+                if(source_alpha)
+                    target_alpha = alpha_data + ((height*(width-1)) + j - (i*height));
+            }

             memcpy( target_data, source_data, 3 );
             source_data += 3;
             memcpy( target_data, source_data, 3 );
             source_data += 3;

+
+            if(source_alpha)
+            {
+                memcpy( target_alpha, source_alpha, 1 );
+                source_alpha += 1;
+            }

         }
     }
 
         }
     }
 


@@ -514,6 +627,44 @@ wxImage wxImage::GetSubImage( const wxRect &rect ) const
     return image;
 }
 
     return image;
 }
 

+wxImage wxImage::Size( const wxSize& size, const wxPoint& pos,
+                       int r_, int g_, int b_ ) const
+{
+    wxImage image;
+
+    wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+    wxCHECK_MSG( (size.GetWidth() > 0) && (size.GetHeight() > 0), image, wxT("invalid size") );
+
+    int width = GetWidth(), height = GetHeight();
+    image.Create(size.GetWidth(), size.GetHeight(), false);
+
+    unsigned char r = (unsigned char)r_;
+    unsigned char g = (unsigned char)g_;
+    unsigned char b = (unsigned char)b_;
+    if ((r_ == -1) && (g_ == -1) && (b_ == -1))
+    {
+        GetOrFindMaskColour( &r, &g, &b );
+        image.SetMaskColour(r, g, b);
+    }
+
+    image.SetRGB(wxRect(), r, g, b);
+
+    wxRect subRect(pos.x, pos.y, width, height);
+    wxRect finalRect(0, 0, size.GetWidth(), size.GetHeight());
+
+    subRect.Intersect(finalRect);
+
+    if (!subRect.IsEmpty())
+    {
+        if ((subRect.GetWidth() == width) && (subRect.GetHeight() == height))
+            image.Paste(*this, pos.x, pos.y);
+        else
+            image.Paste(GetSubImage(subRect), pos.x, pos.y);
+    }
+
+    return image;
+}
+

 void wxImage::Paste( const wxImage &image, int x, int y )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 void wxImage::Paste( const wxImage &image, int x, int y )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );


@@ -544,6 +695,7 @@ void wxImage::Paste( const wxImage &image, int x, int y )
     if (height < 1) return;
 
     if ((!HasMask() && !image.HasMask()) ||
     if (height < 1) return;
 
     if ((!HasMask() && !image.HasMask()) ||

+        (HasMask() && !image.HasMask()) ||

        ((HasMask() && image.HasMask() &&
          (GetMaskRed()==image.GetMaskRed()) &&
          (GetMaskGreen()==image.GetMaskGreen()) &&
        ((HasMask() && image.HasMask() &&
          (GetMaskRed()==image.GetMaskRed()) &&
          (GetMaskGreen()==image.GetMaskGreen()) &&


@@ -654,60 +806,106 @@ wxImage wxImage::ConvertToMono( unsigned char r, unsigned char g, unsigned char
     return image;
 }
 
     return image;
 }
 

-void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b )
+int wxImage::GetWidth() const

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid image") );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+
+    return M_IMGDATA->m_width;
+}
+
+int wxImage::GetHeight() const
+{
+    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+
+    return M_IMGDATA->m_height;
+}

 
 

-    int w = M_IMGDATA->m_width;
-    int h = M_IMGDATA->m_height;
+long wxImage::XYToIndex(int x, int y) const
+{
+    if ( Ok() &&
+            x >= 0 && y >= 0 &&
+                x < M_IMGDATA->m_width && y < M_IMGDATA->m_height )
+    {
+        return y*M_IMGDATA->m_width + x;
+    }

 
 

-    wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), wxT("invalid image index") );
+    return -1;
+}

 
 

-    long pos = (y * w + x) * 3;
+void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b )
+{
+    long pos = XYToIndex(x, y);
+    wxCHECK_RET( pos != -1, wxT("invalid image coordinates") );
+
+    pos *= 3;

 
     M_IMGDATA->m_data[ pos   ] = r;
     M_IMGDATA->m_data[ pos+1 ] = g;
     M_IMGDATA->m_data[ pos+2 ] = b;
 }
 
 
     M_IMGDATA->m_data[ pos   ] = r;
     M_IMGDATA->m_data[ pos+1 ] = g;
     M_IMGDATA->m_data[ pos+2 ] = b;
 }
 

-unsigned char wxImage::GetRed( int x, int y ) const
+void wxImage::SetRGB( const wxRect& rect_, unsigned char r, unsigned char g, unsigned char b )

 {
 {

-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+    wxCHECK_RET( Ok(), wxT("invalid image") );
+
+    wxRect rect(rect_);
+    wxRect imageRect(0, 0, GetWidth(), GetHeight());
+    if ( rect == wxRect() )
+    {
+        rect = imageRect;
+    }
+    else
+    {
+        wxCHECK_RET( imageRect.Inside(rect.GetTopLeft()) &&
+                     imageRect.Inside(rect.GetBottomRight()),
+                     wxT("invalid bounding rectangle") );
+    }
+
+    int x1 = rect.GetLeft(),
+        y1 = rect.GetTop(),
+        x2 = rect.GetRight() + 1,
+        y2 = rect.GetBottom() + 1;

 
 

-    int w = M_IMGDATA->m_width;
-    int h = M_IMGDATA->m_height;
+    unsigned char *data wxDUMMY_INITIALIZE(NULL);
+    int x, y, width = GetWidth();
+    for (y = y1; y < y2; y++)
+    {
+        data = M_IMGDATA->m_data + (y*width + x1)*3;
+        for (x = x1; x < x2; x++)
+        {
+            *data++ = r;
+            *data++ = g;
+            *data++ = b;
+        }
+    }
+}

 
 

-    wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") );
+unsigned char wxImage::GetRed( int x, int y ) const
+{
+    long pos = XYToIndex(x, y);
+    wxCHECK_MSG( pos != -1, 0, wxT("invalid image coordinates") );

 
 

-    long pos = (y * w + x) * 3;
+    pos *= 3;

 
     return M_IMGDATA->m_data[pos];
 }
 
 unsigned char wxImage::GetGreen( int x, int y ) const
 {
 
     return M_IMGDATA->m_data[pos];
 }
 
 unsigned char wxImage::GetGreen( int x, int y ) const
 {

-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+    long pos = XYToIndex(x, y);
+    wxCHECK_MSG( pos != -1, 0, wxT("invalid image coordinates") );

 
 

-    int w = M_IMGDATA->m_width;
-    int h = M_IMGDATA->m_height;
-
-    wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") );
-
-    long pos = (y * w + x) * 3;
+    pos *= 3;

 
     return M_IMGDATA->m_data[pos+1];
 }
 
 unsigned char wxImage::GetBlue( int x, int y ) const
 {
 
     return M_IMGDATA->m_data[pos+1];
 }
 
 unsigned char wxImage::GetBlue( int x, int y ) const
 {

-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+    long pos = XYToIndex(x, y);
+    wxCHECK_MSG( pos != -1, 0, wxT("invalid image coordinates") );

 
 

-    int w = M_IMGDATA->m_width;
-    int h = M_IMGDATA->m_height;
-
-    wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") );
-
-    long pos = (y * w + x) * 3;
+    pos *= 3;

 
     return M_IMGDATA->m_data[pos+2];
 }
 
     return M_IMGDATA->m_data[pos+2];
 }


@@ -727,7 +925,7 @@ unsigned char *wxImage::GetData() const
     return M_IMGDATA->m_data;
 }
 
     return M_IMGDATA->m_data;
 }
 

-void wxImage::SetData( unsigned char *data )
+void wxImage::SetData( unsigned char *data, bool static_data  )

 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 


@@ -736,18 +934,19 @@ void wxImage::SetData( unsigned char *data )
     newRefData->m_width = M_IMGDATA->m_width;
     newRefData->m_height = M_IMGDATA->m_height;
     newRefData->m_data = data;
     newRefData->m_width = M_IMGDATA->m_width;
     newRefData->m_height = M_IMGDATA->m_height;
     newRefData->m_data = data;

-    newRefData->m_ok = TRUE;
+    newRefData->m_ok = true;

     newRefData->m_maskRed = M_IMGDATA->m_maskRed;
     newRefData->m_maskGreen = M_IMGDATA->m_maskGreen;
     newRefData->m_maskBlue = M_IMGDATA->m_maskBlue;
     newRefData->m_hasMask = M_IMGDATA->m_hasMask;
     newRefData->m_maskRed = M_IMGDATA->m_maskRed;
     newRefData->m_maskGreen = M_IMGDATA->m_maskGreen;
     newRefData->m_maskBlue = M_IMGDATA->m_maskBlue;
     newRefData->m_hasMask = M_IMGDATA->m_hasMask;

+    newRefData->m_static = static_data;

 
     UnRef();
 
     m_refData = newRefData;
 }
 
 
     UnRef();
 
     m_refData = newRefData;
 }
 

-void wxImage::SetData( unsigned char *data, int new_width, int new_height )
+void wxImage::SetData( unsigned char *data, int new_width, int new_height, bool static_data )

 {
     wxImageRefData *newRefData = new wxImageRefData();
 
 {
     wxImageRefData *newRefData = new wxImageRefData();
 


@@ -756,7 +955,7 @@ void wxImage::SetData( unsigned char *data, int new_width, int new_height )
         newRefData->m_width = new_width;
         newRefData->m_height = new_height;
         newRefData->m_data = data;
         newRefData->m_width = new_width;
         newRefData->m_height = new_height;
         newRefData->m_data = data;

-        newRefData->m_ok = TRUE;
+        newRefData->m_ok = true;

         newRefData->m_maskRed = M_IMGDATA->m_maskRed;
         newRefData->m_maskGreen = M_IMGDATA->m_maskGreen;
         newRefData->m_maskBlue = M_IMGDATA->m_maskBlue;
         newRefData->m_maskRed = M_IMGDATA->m_maskRed;
         newRefData->m_maskGreen = M_IMGDATA->m_maskGreen;
         newRefData->m_maskBlue = M_IMGDATA->m_maskBlue;


@@ -767,8 +966,9 @@ void wxImage::SetData( unsigned char *data, int new_width, int new_height )
         newRefData->m_width = new_width;
         newRefData->m_height = new_height;
         newRefData->m_data = data;
         newRefData->m_width = new_width;
         newRefData->m_height = new_height;
         newRefData->m_data = data;

-        newRefData->m_ok = TRUE;
+        newRefData->m_ok = true;

     }
     }

+    newRefData->m_static = static_data;

 
     UnRef();
 
 
     UnRef();
 


@@ -781,40 +981,61 @@ void wxImage::SetData( unsigned char *data, int new_width, int new_height )
 
 void wxImage::SetAlpha(int x, int y, unsigned char alpha)
 {
 
 void wxImage::SetAlpha(int x, int y, unsigned char alpha)
 {

-    wxCHECK_RET( Ok() && HasAlpha(), wxT("invalid image or no alpha channel") );
+    wxCHECK_RET( HasAlpha(), wxT("no alpha channel") );
+
+    long pos = XYToIndex(x, y);
+    wxCHECK_RET( pos != -1, wxT("invalid image coordinates") );
+
+    M_IMGDATA->m_alpha[pos] = alpha;
+}

 
 

-    int w = M_IMGDATA->m_width,
-        h = M_IMGDATA->m_height;
+unsigned char wxImage::GetAlpha(int x, int y) const
+{
+    wxCHECK_MSG( HasAlpha(), 0, wxT("no alpha channel") );

 
 

-    wxCHECK_RET( x >=0 && y >= 0 && x < w && y < h, wxT("invalid image index") );
+    long pos = XYToIndex(x, y);
+    wxCHECK_MSG( pos != -1, 0, wxT("invalid image coordinates") );

 
 

-    M_IMGDATA->m_alpha[y*w + x] = alpha;
+    return M_IMGDATA->m_alpha[pos];

 }
 
 }
 

-unsigned char wxImage::GetAlpha(int x, int y)
+bool
+wxImage::ConvertColourToAlpha(unsigned char r, unsigned char g, unsigned char b)

 {
 {

-    wxCHECK_MSG( Ok() && HasAlpha(), 0, wxT("invalid image or no alpha channel") );
+    SetAlpha(NULL);

 
 

-    int w = M_IMGDATA->m_width,
-        h = M_IMGDATA->m_height;
+    const int w = M_IMGDATA->m_width;
+    const int h = M_IMGDATA->m_height;

 
 

-    wxCHECK_MSG( x >=0 && y >= 0 && x < w && y < h, 0, wxT("invalid image index") );
+    unsigned char *alpha = GetAlpha();
+    unsigned char *data = GetData();

 
 

-    return M_IMGDATA->m_alpha[y*w + x];
+    for ( int y = 0; y < h; y++ )
+    {
+        for ( int x = 0; x < w; x++ )
+        {
+            *alpha++ = *data;
+            *data++ = r;
+            *data++ = g;
+            *data++ = b;
+        }
+    }
+
+    return true;

 }
 
 }
 

-void wxImage::SetAlpha( unsigned char *alpha )
+void wxImage::SetAlpha( unsigned char *alpha, bool static_data )

 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
     if ( !alpha )
     {
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
     if ( !alpha )
     {

-        alpha = (unsigned char *)
-                    malloc(M_IMGDATA->m_width*M_IMGDATA->m_height*3);
+        alpha = (unsigned char *)malloc(M_IMGDATA->m_width*M_IMGDATA->m_height);

     }
 
     }
 

-    delete [] M_IMGDATA->m_alpha;
+    free(M_IMGDATA->m_alpha);

     M_IMGDATA->m_alpha = alpha;
     M_IMGDATA->m_alpha = alpha;

+    M_IMGDATA->m_staticAlpha = static_data;

 }
 
 unsigned char *wxImage::GetAlpha() const
 }
 
 unsigned char *wxImage::GetAlpha() const


@@ -824,6 +1045,42 @@ unsigned char *wxImage::GetAlpha() const
     return M_IMGDATA->m_alpha;
 }
 
     return M_IMGDATA->m_alpha;
 }
 

+void wxImage::InitAlpha()
+{
+    wxCHECK_RET( !HasAlpha(), wxT("image already has an alpha channel") );
+
+    // initialize memory for alpha channel
+    SetAlpha();
+
+    unsigned char *alpha = M_IMGDATA->m_alpha;
+    const size_t lenAlpha = M_IMGDATA->m_width * M_IMGDATA->m_height;
+
+    if ( HasMask() )
+    {
+        // use the mask to initialize the alpha channel.
+        const unsigned char * const alphaEnd = alpha + lenAlpha;
+
+        const unsigned char mr = M_IMGDATA->m_maskRed;
+        const unsigned char mg = M_IMGDATA->m_maskGreen;
+        const unsigned char mb = M_IMGDATA->m_maskBlue;
+        for ( unsigned char *src = M_IMGDATA->m_data;
+              alpha < alphaEnd;
+              src += 3, alpha++ )
+        {
+            *alpha = (src[0] == mr && src[1] == mg && src[2] == mb)
+                            ? wxIMAGE_ALPHA_TRANSPARENT
+                            : wxIMAGE_ALPHA_OPAQUE;
+        }
+
+        M_IMGDATA->m_hasMask = false;
+    }
+    else // no mask
+    {
+        // make the image fully opaque
+        memset(alpha, wxIMAGE_ALPHA_OPAQUE, lenAlpha);
+    }
+}
+

 // ----------------------------------------------------------------------------
 // mask support
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // mask support
 // ----------------------------------------------------------------------------


@@ -835,7 +1092,25 @@ void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
     M_IMGDATA->m_maskRed = r;
     M_IMGDATA->m_maskGreen = g;
     M_IMGDATA->m_maskBlue = b;
     M_IMGDATA->m_maskRed = r;
     M_IMGDATA->m_maskGreen = g;
     M_IMGDATA->m_maskBlue = b;

-    M_IMGDATA->m_hasMask = TRUE;
+    M_IMGDATA->m_hasMask = true;
+}
+
+bool wxImage::GetOrFindMaskColour( unsigned char *r, unsigned char *g, unsigned char *b ) const
+{
+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+
+    if (M_IMGDATA->m_hasMask)
+    {
+        if (r) *r = M_IMGDATA->m_maskRed;
+        if (g) *g = M_IMGDATA->m_maskGreen;
+        if (b) *b = M_IMGDATA->m_maskBlue;
+        return true;
+    }
+    else
+    {
+        FindFirstUnusedColour(r, g, b);
+        return false;
+    }

 }
 
 unsigned char wxImage::GetMaskRed() const
 }
 
 unsigned char wxImage::GetMaskRed() const


@@ -868,23 +1143,40 @@ void wxImage::SetMask( bool mask )
 
 bool wxImage::HasMask() const
 {
 
 bool wxImage::HasMask() const
 {

-    wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") );
+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );

 
     return M_IMGDATA->m_hasMask;
 }
 
 
     return M_IMGDATA->m_hasMask;
 }
 

-int wxImage::GetWidth() const
+bool wxImage::IsTransparent(int x, int y, unsigned char threshold) const

 {
 {

-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+    long pos = XYToIndex(x, y);
+    wxCHECK_MSG( pos != -1, false, wxT("invalid image coordinates") );

 
 

-    return M_IMGDATA->m_width;
-}
+    // check mask
+    if ( M_IMGDATA->m_hasMask )
+    {
+        const unsigned char *p = M_IMGDATA->m_data + 3*pos;
+        if ( p[0] == M_IMGDATA->m_maskRed &&
+                p[1] == M_IMGDATA->m_maskGreen &&
+                    p[2] == M_IMGDATA->m_maskBlue )
+        {
+            return true;
+        }
+    }

 
 

-int wxImage::GetHeight() const
-{
-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+    // then check alpha
+    if ( M_IMGDATA->m_alpha )
+    {
+        if ( M_IMGDATA->m_alpha[pos] < threshold )
+        {
+            // transparent enough
+            return true;
+        }
+    }

 
 

-    return M_IMGDATA->m_height;
+    // not transparent
+    return false;

 }
 
 bool wxImage::SetMaskFromImage(const wxImage& mask,
 }
 
 bool wxImage::SetMaskFromImage(const wxImage& mask,


@@ -893,16 +1185,16 @@ bool wxImage::SetMaskFromImage(const wxImage& mask,
     // check that the images are the same size
     if ( (M_IMGDATA->m_height != mask.GetHeight() ) || (M_IMGDATA->m_width != mask.GetWidth () ) )
     {
     // check that the images are the same size
     if ( (M_IMGDATA->m_height != mask.GetHeight() ) || (M_IMGDATA->m_width != mask.GetWidth () ) )
     {

-        wxLogError( _("Image and Mask have different sizes") );
-        return FALSE;
+        wxLogError( _("Image and mask have different sizes.") );
+        return false;

     }
 
     // find unused colour
     unsigned char r,g,b ;
     if (!FindFirstUnusedColour(&r, &g, &b))
     {
     }
 
     // find unused colour
     unsigned char r,g,b ;
     if (!FindFirstUnusedColour(&r, &g, &b))
     {

-        wxLogError( _("No Unused Color in image being masked") );
-        return FALSE ;
+        wxLogError( _("No unused colour in image being masked.") );
+        return false ;

     }
 
     unsigned char *imgdata = GetData();
     }
 
     unsigned char *imgdata = GetData();


@@ -927,19 +1219,61 @@ bool wxImage::SetMaskFromImage(const wxImage& mask,
     }
 
     SetMaskColour(r, g, b);
     }
 
     SetMaskColour(r, g, b);

-    SetMask(TRUE);
+    SetMask(true);

 
 

-    return TRUE;
+    return true;

 }
 
 }
 

-#if wxUSE_PALETTE
+bool wxImage::ConvertAlphaToMask(unsigned char threshold)
+{
+    if (!HasAlpha())
+        return true;
+
+    unsigned char mr, mg, mb;
+    if (!FindFirstUnusedColour(&mr, &mg, &mb))
+    {
+        wxLogError( _("No unused colour in image being masked.") );
+        return false;
+    }
+
+    SetMask(true);
+    SetMaskColour(mr, mg, mb);
+
+    unsigned char *imgdata = GetData();
+    unsigned char *alphadata = GetAlpha();

 
 

+    int w = GetWidth();
+    int h = GetHeight();
+
+    for (int y = 0; y < h; y++)
+    {
+        for (int x = 0; x < w; x++, imgdata += 3, alphadata++)
+        {
+            if (*alphadata < threshold)
+            {
+                imgdata[0] = mr;
+                imgdata[1] = mg;
+                imgdata[2] = mb;
+            }
+        }
+    }
+
+    free(M_IMGDATA->m_alpha);
+    M_IMGDATA->m_alpha = NULL;
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------

 // Palette functions
 // Palette functions

+// ----------------------------------------------------------------------------
+
+#if wxUSE_PALETTE

 
 bool wxImage::HasPalette() const
 {
     if (!Ok())
 
 bool wxImage::HasPalette() const
 {
     if (!Ok())

-        return FALSE;
+        return false;

 
     return M_IMGDATA->m_palette.Ok();
 }
 
     return M_IMGDATA->m_palette.Ok();
 }


@@ -960,12 +1294,15 @@ void wxImage::SetPalette(const wxPalette& palette)
 
 #endif // wxUSE_PALETTE
 
 
 #endif // wxUSE_PALETTE
 

+// ----------------------------------------------------------------------------

 // Option functions (arbitrary name/value mapping)
 // Option functions (arbitrary name/value mapping)

+// ----------------------------------------------------------------------------
+

 void wxImage::SetOption(const wxString& name, const wxString& value)
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
 void wxImage::SetOption(const wxString& name, const wxString& value)
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 

-    int idx = M_IMGDATA->m_optionNames.Index(name, FALSE);
+    int idx = M_IMGDATA->m_optionNames.Index(name, false);

     if (idx == wxNOT_FOUND)
     {
         M_IMGDATA->m_optionNames.Add(name);
     if (idx == wxNOT_FOUND)
     {
         M_IMGDATA->m_optionNames.Add(name);


@@ -989,7 +1326,7 @@ wxString wxImage::GetOption(const wxString& name) const
 {
     wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid image") );
 
 {
     wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid image") );
 

-    int idx = M_IMGDATA->m_optionNames.Index(name, FALSE);
+    int idx = M_IMGDATA->m_optionNames.Index(name, false);

     if (idx == wxNOT_FOUND)
         return wxEmptyString;
     else
     if (idx == wxNOT_FOUND)
         return wxEmptyString;
     else


@@ -998,18 +1335,20 @@ wxString wxImage::GetOption(const wxString& name) const
 
 int wxImage::GetOptionInt(const wxString& name) const
 {
 
 int wxImage::GetOptionInt(const wxString& name) const
 {

-    wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
-

     return wxAtoi(GetOption(name));
 }
 
 bool wxImage::HasOption(const wxString& name) const
 {
     return wxAtoi(GetOption(name));
 }
 
 bool wxImage::HasOption(const wxString& name) const
 {

-    wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") );
+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );

 
 

-    return (M_IMGDATA->m_optionNames.Index(name, FALSE) != wxNOT_FOUND);
+    return (M_IMGDATA->m_optionNames.Index(name, false) != wxNOT_FOUND);

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// image I/O
+// ----------------------------------------------------------------------------
+

 bool wxImage::LoadFile( const wxString& filename, long type, int index )
 {
 #if wxUSE_STREAMS
 bool wxImage::LoadFile( const wxString& filename, long type, int index )
 {
 #if wxUSE_STREAMS


@@ -1023,10 +1362,10 @@ bool wxImage::LoadFile( const wxString& filename, long type, int index )
     {
         wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() );
 
     {
         wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() );
 

-        return FALSE;
+        return false;

     }
 #else // !wxUSE_STREAMS
     }
 #else // !wxUSE_STREAMS

-    return FALSE;
+    return false;

 #endif // wxUSE_STREAMS
 }
 
 #endif // wxUSE_STREAMS
 }
 


@@ -1043,10 +1382,10 @@ bool wxImage::LoadFile( const wxString& filename, const wxString& mimetype, int
     {
         wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() );
 
     {
         wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() );
 

-        return FALSE;
+        return false;

     }
 #else // !wxUSE_STREAMS
     }
 #else // !wxUSE_STREAMS

-    return FALSE;
+    return false;

 #endif // wxUSE_STREAMS
 }
 
 #endif // wxUSE_STREAMS
 }
 


@@ -1060,17 +1399,19 @@ bool wxImage::SaveFile( const wxString& filename ) const
     if (pHandler)
     {
         SaveFile(filename, pHandler->GetType());
     if (pHandler)
     {
         SaveFile(filename, pHandler->GetType());

-        return TRUE;
+        return true;

     }
 
     wxLogError(_("Can't save image to file '%s': unknown extension."), filename.c_str());
 
     }
 
     wxLogError(_("Can't save image to file '%s': unknown extension."), filename.c_str());
 

-    return FALSE;
+    return false;

 }
 
 bool wxImage::SaveFile( const wxString& filename, int type ) const
 {
 #if wxUSE_STREAMS
 }
 
 bool wxImage::SaveFile( const wxString& filename, int type ) const
 {
 #if wxUSE_STREAMS

+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+

     ((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
 
     wxFileOutputStream stream(filename);
     ((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
 
     wxFileOutputStream stream(filename);


@@ -1082,12 +1423,14 @@ bool wxImage::SaveFile( const wxString& filename, int type ) const
     }
 #endif // wxUSE_STREAMS
 
     }
 #endif // wxUSE_STREAMS
 

-    return FALSE;
+    return false;

 }
 
 bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) const
 {
 #if wxUSE_STREAMS
 }
 
 bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) const
 {
 #if wxUSE_STREAMS

+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );
+

     ((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
 
     wxFileOutputStream stream(filename);
     ((wxImage*)this)->SetOption(wxIMAGE_OPTION_FILENAME, filename);
 
     wxFileOutputStream stream(filename);


@@ -1099,7 +1442,7 @@ bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) con
     }
 #endif // wxUSE_STREAMS
 
     }
 #endif // wxUSE_STREAMS
 

-    return FALSE;
+    return false;

 }
 
 bool wxImage::CanRead( const wxString &name )
 }
 
 bool wxImage::CanRead( const wxString &name )


@@ -1108,7 +1451,7 @@ bool wxImage::CanRead( const wxString &name )
   wxFileInputStream stream(name);
   return CanRead(stream);
 #else
   wxFileInputStream stream(name);
   return CanRead(stream);
 #else

-  return FALSE;
+  return false;

 #endif
 }
 
 #endif
 }
 


@@ -1129,14 +1472,14 @@ bool wxImage::CanRead( wxInputStream &stream )
 {
     const wxList& list = GetHandlers();
 
 {
     const wxList& list = GetHandlers();
 

-    for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() )
+    for ( wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext() )

     {
         wxImageHandler *handler=(wxImageHandler*)node->GetData();
         if (handler->CanRead( stream ))
     {
         wxImageHandler *handler=(wxImageHandler*)node->GetData();
         if (handler->CanRead( stream ))

-            return TRUE;
+            return true;

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 int wxImage::GetImageCount( wxInputStream &stream, long type )
 }
 
 int wxImage::GetImageCount( wxInputStream &stream, long type )


@@ -1147,7 +1490,7 @@ int wxImage::GetImageCount( wxInputStream &stream, long type )
     {
         wxList &list=GetHandlers();
 
     {
         wxList &list=GetHandlers();
 

-        for (wxList::Node *node = list.GetFirst(); node; node = node->GetNext())
+        for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())

         {
              handler=(wxImageHandler*)node->GetData();
              if ( handler->CanRead(stream) )
         {
              handler=(wxImageHandler*)node->GetData();
              if ( handler->CanRead(stream) )


@@ -1164,7 +1507,7 @@ int wxImage::GetImageCount( wxInputStream &stream, long type )
     if ( !handler )
     {
         wxLogWarning(_("No image handler for type %d defined."), type);
     if ( !handler )
     {
         wxLogWarning(_("No image handler for type %d defined."), type);

-        return FALSE;
+        return false;

     }
 
     if ( handler->CanRead(stream) )
     }
 
     if ( handler->CanRead(stream) )


@@ -1190,16 +1533,16 @@ bool wxImage::LoadFile( wxInputStream& stream, long type, int index )
     {
         wxList &list=GetHandlers();
 
     {
         wxList &list=GetHandlers();
 

-        for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() )
+        for ( wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext() )

         {
              handler=(wxImageHandler*)node->GetData();
              if ( handler->CanRead(stream) )
         {
              handler=(wxImageHandler*)node->GetData();
              if ( handler->CanRead(stream) )

-                 return handler->LoadFile(this, stream, TRUE/*verbose*/, index);
+                 return handler->LoadFile(this, stream, true/*verbose*/, index);

 
         }
 
         wxLogWarning( _("No handler found for image type.") );
 
         }
 
         wxLogWarning( _("No handler found for image type.") );

-        return FALSE;
+        return false;

     }
 
     handler = FindHandler(type);
     }
 
     handler = FindHandler(type);


@@ -1208,10 +1551,10 @@ bool wxImage::LoadFile( wxInputStream& stream, long type, int index )
     {
         wxLogWarning( _("No image handler for type %d defined."), type );
 
     {
         wxLogWarning( _("No image handler for type %d defined."), type );
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    return handler->LoadFile(this, stream, TRUE/*verbose*/, index);
+    return handler->LoadFile(this, stream, true/*verbose*/, index);

 }
 
 bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype, int index )
 }
 
 bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype, int index )


@@ -1226,23 +1569,22 @@ bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype, int ind
     {
         wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() );
 
     {
         wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() );
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    return handler->LoadFile( this, stream, TRUE/*verbose*/, index );
+    return handler->LoadFile( this, stream, true/*verbose*/, index );

 }
 
 bool wxImage::SaveFile( wxOutputStream& stream, int type ) const
 {
 }
 
 bool wxImage::SaveFile( wxOutputStream& stream, int type ) const
 {

-    wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") );
+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );

 
     wxImageHandler *handler = FindHandler(type);
 
     wxImageHandler *handler = FindHandler(type);

-
-    if (handler == 0)
+    if ( !handler )

     {
         wxLogWarning( _("No image handler for type %d defined."), type );
 
     {
         wxLogWarning( _("No image handler for type %d defined."), type );
 

-        return FALSE;
+        return false;

     }
 
     return handler->SaveFile( (wxImage*)this, stream );
     }
 
     return handler->SaveFile( (wxImage*)this, stream );


@@ -1250,26 +1592,26 @@ bool wxImage::SaveFile( wxOutputStream& stream, int type ) const
 
 bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) const
 {
 
 bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) const
 {

-    wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") );
+    wxCHECK_MSG( Ok(), false, wxT("invalid image") );

 
     wxImageHandler *handler = FindHandlerMime(mimetype);
 
     wxImageHandler *handler = FindHandlerMime(mimetype);

-
-    if (handler == 0)
+    if ( !handler )

     {
         wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() );
 
     {
         wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() );
 

-        return FALSE;
+        return false;

     }
 
     return handler->SaveFile( (wxImage*)this, stream );
 }
 #endif // wxUSE_STREAMS
 
     }
 
     return handler->SaveFile( (wxImage*)this, stream );
 }
 #endif // wxUSE_STREAMS
 

+// ----------------------------------------------------------------------------
+// image I/O handlers
+// ----------------------------------------------------------------------------
+

 void wxImage::AddHandler( wxImageHandler *handler )
 {
 void wxImage::AddHandler( wxImageHandler *handler )
 {

-    // make sure that the memory will be freed at the program end
-    sm_handlers.DeleteContents(TRUE);
-

     // Check for an existing handler of the type being added.
     if (FindHandler( handler->GetType() ) == 0)
     {
     // Check for an existing handler of the type being added.
     if (FindHandler( handler->GetType() ) == 0)
     {


@@ -1291,9 +1633,6 @@ void wxImage::AddHandler( wxImageHandler *handler )
 
 void wxImage::InsertHandler( wxImageHandler *handler )
 {
 
 void wxImage::InsertHandler( wxImageHandler *handler )
 {

-    // make sure that the memory will be freed at the program end
-    sm_handlers.DeleteContents(TRUE);
-

     // Check for an existing handler of the type being added.
     if (FindHandler( handler->GetType() ) == 0)
     {
     // Check for an existing handler of the type being added.
     if (FindHandler( handler->GetType() ) == 0)
     {


@@ -1314,15 +1653,16 @@ bool wxImage::RemoveHandler( const wxString& name )
     if (handler)
     {
         sm_handlers.DeleteObject(handler);
     if (handler)
     {
         sm_handlers.DeleteObject(handler);

-        return TRUE;
+        delete handler;
+        return true;

     }
     else
     }
     else

-        return FALSE;
+        return false;

 }
 
 wxImageHandler *wxImage::FindHandler( const wxString& name )
 {
 }
 
 wxImageHandler *wxImage::FindHandler( const wxString& name )
 {

-    wxNode *node = sm_handlers.GetFirst();
+    wxList::compatibility_iterator node = sm_handlers.GetFirst();

     while (node)
     {
         wxImageHandler *handler = (wxImageHandler*)node->GetData();
     while (node)
     {
         wxImageHandler *handler = (wxImageHandler*)node->GetData();


@@ -1335,7 +1675,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& name )
 
 wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )
 {
 
 wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )
 {

-    wxNode *node = sm_handlers.GetFirst();
+    wxList::compatibility_iterator node = sm_handlers.GetFirst();

     while (node)
     {
         wxImageHandler *handler = (wxImageHandler*)node->GetData();
     while (node)
     {
         wxImageHandler *handler = (wxImageHandler*)node->GetData();


@@ -1349,7 +1689,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType
 
 wxImageHandler *wxImage::FindHandler( long bitmapType )
 {
 
 wxImageHandler *wxImage::FindHandler( long bitmapType )
 {

-    wxNode *node = sm_handlers.GetFirst();
+    wxList::compatibility_iterator node = sm_handlers.GetFirst();

     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();
     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();


@@ -1361,11 +1701,11 @@ wxImageHandler *wxImage::FindHandler( long bitmapType )
 
 wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )
 {
 
 wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )
 {

-    wxNode *node = sm_handlers.GetFirst();
+    wxList::compatibility_iterator node = sm_handlers.GetFirst();

     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();
     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();

-        if (handler->GetMimeType().IsSameAs(mimetype, FALSE)) return handler;
+        if (handler->GetMimeType().IsSameAs(mimetype, false)) return handler;

         node = node->GetNext();
     }
     return 0;
         node = node->GetNext();
     }
     return 0;


@@ -1380,17 +1720,187 @@ void wxImage::InitStandardHandlers()
 
 void wxImage::CleanUpHandlers()
 {
 
 void wxImage::CleanUpHandlers()
 {

-    wxNode *node = sm_handlers.GetFirst();
+    wxList::compatibility_iterator node = sm_handlers.GetFirst();

     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();
     while (node)
     {
         wxImageHandler *handler = (wxImageHandler *)node->GetData();

-        wxNode *next = node->GetNext();
+        wxList::compatibility_iterator next = node->GetNext();

         delete handler;
         delete handler;

-        delete node;

         node = next;
     }
         node = next;
     }

+
+    sm_handlers.Clear();
+}
+
+wxString wxImage::GetImageExtWildcard()
+{
+    wxString fmts;
+
+    wxList& Handlers = wxImage::GetHandlers();
+    wxList::compatibility_iterator Node = Handlers.GetFirst();
+    while ( Node )
+    {
+        wxImageHandler* Handler = (wxImageHandler*)Node->GetData();
+        fmts += wxT("*.") + Handler->GetExtension();
+        Node = Node->GetNext();
+        if ( Node ) fmts += wxT(";");
+    }
+
+    return wxT("(") + fmts + wxT(")|") + fmts;
+}
+
+wxImage::HSVValue wxImage::RGBtoHSV(const RGBValue& rgb)
+{
+    double hue, saturation, value;
+
+    const double red = rgb.red / 255.0,
+                 green = rgb.green / 255.0,
+                 blue = rgb.blue / 255.0;
+
+    double minimumRGB = red;
+    if (green < minimumRGB)
+        minimumRGB = green;
+
+    if (blue < minimumRGB)
+        minimumRGB = blue;
+
+    double maximumRGB = red;
+    if (green > maximumRGB)
+        maximumRGB = green;
+
+    if (blue > maximumRGB)
+        maximumRGB = blue;
+
+    value = maximumRGB;
+
+    if (maximumRGB == minimumRGB)
+    {
+        // Gray has no color
+        hue = 0.0;
+        saturation = 0.0;
+    }
+    else
+    {
+        double deltaRGB = maximumRGB - minimumRGB;
+
+        saturation = deltaRGB / maximumRGB;
+
+        if ( red == maximumRGB )
+            hue = (green - blue) / deltaRGB;
+        else if (green == maximumRGB)
+            hue = 2.0 + (blue - red) / deltaRGB;
+        else
+            hue = 4.0 + (red - green) / deltaRGB;
+
+        hue = hue / 6.0;
+
+        if (hue < 0.0)
+            hue = hue + 1.0;
+    }
+
+    return HSVValue(hue, saturation, value);

 }
 
 }
 

+wxImage::RGBValue wxImage::HSVtoRGB(const HSVValue& hsv)
+{
+    double red, green, blue;
+
+    if ( hsv.saturation == 0.0 )
+    {
+        red = hsv.value; //Grey
+        green = hsv.value;
+        blue = hsv.value; 
+    }
+    else
+    {
+        double hue = hsv.hue * 6.0;      // sector 0 to 5
+        int i = (int)floor(hue);
+        double f = hue - i;          // fractional part of h
+        double p = hsv.value * (1.0 - hsv.saturation);
+
+        switch (i)
+        {
+            case 0:
+                red = hsv.value;
+                green = hsv.value * (1.0 - hsv.saturation * (1.0 - f));
+                blue = p;
+                break;
+
+            case 1:
+                red = hsv.value * (1.0 - hsv.saturation * f);
+                green = hsv.value;
+                blue = p;
+                break;
+
+            case 2:
+                red = p;
+                green = hsv.value;
+                blue = hsv.value * (1.0 - hsv.saturation * (1.0 - f));
+                break;
+
+            case 3:
+                red = p;
+                green = hsv.value * (1.0 - hsv.saturation * f);
+                blue = hsv.value;
+                break;
+
+            case 4:
+                red = hsv.value * (1.0 - hsv.saturation * (1.0 - f));
+                green = p;
+                blue = hsv.value;
+                break;
+
+            default:    // case 5:
+                red = hsv.value;
+                green = p;
+                blue = hsv.value * (1.0 - hsv.saturation * f);
+                break;
+        }
+    }
+
+    return RGBValue((unsigned char)(red * 255.0),
+                    (unsigned char)(green * 255.0),
+                    (unsigned char)(blue * 255.0));
+}
+
+/*
+ * 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 wxImage::RotateHue(double angle)
+{
+    unsigned char *srcBytePtr;
+    unsigned char *dstBytePtr;
+    unsigned long count;
+    wxImage::HSVValue hsv;
+    wxImage::RGBValue rgb;
+
+    wxASSERT (angle >= -1.0 && angle <= 1.0);
+    count = M_IMGDATA->m_width * M_IMGDATA->m_height;
+    if (count > 0 && angle != 0.0)
+    {
+        srcBytePtr = M_IMGDATA->m_data;
+        dstBytePtr = srcBytePtr;
+        do
+        {
+            rgb.red = *srcBytePtr++;
+            rgb.green = *srcBytePtr++;
+            rgb.blue = *srcBytePtr++;
+            hsv = RGBtoHSV(rgb);
+
+            hsv.hue = hsv.hue + angle;
+            if (hsv.hue > 1.0)
+                hsv.hue = hsv.hue - 1.0;
+            else if (hsv.hue < 0.0)
+                hsv.hue = hsv.hue + 1.0;
+
+            rgb = HSVtoRGB(hsv);
+            *dstBytePtr++ = rgb.red;
+            *dstBytePtr++ = rgb.green;
+            *dstBytePtr++ = rgb.blue;
+        } while (--count != 0);
+    }
+}

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


@@ -1401,12 +1911,12 @@ IMPLEMENT_ABSTRACT_CLASS(wxImageHandler,wxObject)
 #if wxUSE_STREAMS
 bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), bool WXUNUSED(verbose), int WXUNUSED(index) )
 {
 #if wxUSE_STREAMS
 bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), bool WXUNUSED(verbose), int WXUNUSED(index) )
 {

-    return FALSE;
+    return false;

 }
 
 bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) )
 {
 }
 
 bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) )
 {

-    return FALSE;
+    return false;

 }
 
 int wxImageHandler::GetImageCount( wxInputStream& WXUNUSED(stream) )
 }
 
 int wxImageHandler::GetImageCount( wxInputStream& WXUNUSED(stream) )


@@ -1424,16 +1934,16 @@ bool wxImageHandler::CanRead( const wxString& name )
 
     wxLogError( _("Can't check image format of file '%s': file does not exist."), name.c_str() );
 
 
     wxLogError( _("Can't check image format of file '%s': file does not exist."), name.c_str() );
 

-    return FALSE;
+    return false;

 }
 
 bool wxImageHandler::CallDoCanRead(wxInputStream& stream)
 {
 }
 
 bool wxImageHandler::CallDoCanRead(wxInputStream& stream)
 {

-    off_t posOld = stream.TellI();
+    wxFileOffset posOld = stream.TellI();

     if ( posOld == wxInvalidOffset )
     {
         // can't test unseekable stream
     if ( posOld == wxInvalidOffset )
     {
         // can't test unseekable stream

-        return FALSE;
+        return false;

     }
 
     bool ok = DoCanRead(stream);
     }
 
     bool ok = DoCanRead(stream);


@@ -1444,7 +1954,7 @@ bool wxImageHandler::CallDoCanRead(wxInputStream& stream)
         wxLogDebug(_T("Failed to rewind the stream in wxImageHandler!"));
 
         // reading would fail anyhow as we're not at the right position
         wxLogDebug(_T("Failed to rewind the stream in wxImageHandler!"));
 
         // reading would fail anyhow as we're not at the right position

-        return FALSE;
+        return false;

     }
 
     return ok;
     }
 
     return ok;


@@ -1452,37 +1962,6 @@ bool wxImageHandler::CallDoCanRead(wxInputStream& stream)
 
 #endif // wxUSE_STREAMS
 
 
 #endif // wxUSE_STREAMS
 

-
-
-//-----------------------------------------------------------------------------
-// Deprecated wxBitmap conversion routines
-//-----------------------------------------------------------------------------
-
-#if WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI
-
-#ifdef __WXGTK__
-wxBitmap wxImage::ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const
-{
-    wxImage mono = this->ConvertToMono( red, green, blue );
-    wxBitmap bitmap( mono, 1 );
-    return bitmap;
-}
-#endif
-
-wxBitmap wxImage::ConvertToBitmap() const
-{
-    wxBitmap bitmap( *this );
-    return bitmap;
-}
-
-wxImage::wxImage( const wxBitmap &bitmap )
-{
-    *this = bitmap.ConvertToImage();
-}
-
-#endif // WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI
-
-

 // ----------------------------------------------------------------------------
 // image histogram stuff
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // image histogram stuff
 // ----------------------------------------------------------------------------


@@ -1511,8 +1990,8 @@ wxImageHistogram::FindFirstUnusedColour(unsigned char *r,
                 b2++;
                 if ( b2 >= 255 )
                 {
                 b2++;
                 if ( b2 >= 255 )
                 {

-                    wxLogError(_("GetUnusedColour:: No Unused Color in image ") );
-                    return FALSE;
+                    wxLogError(_("No unused colour in image.") );
+                    return false;

                 }
             }
         }
                 }
             }
         }


@@ -1527,7 +2006,7 @@ wxImageHistogram::FindFirstUnusedColour(unsigned char *r,
     if ( b )
         *b = b2;
 
     if ( b )
         *b = b2;
 

-    return TRUE;
+    return true;

 }
 
 bool
 }
 
 bool


@@ -1648,14 +2127,24 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
     int i;
     angle = -angle;     // screen coordinates are a mirror image of "real" coordinates
 
     int i;
     angle = -angle;     // screen coordinates are a mirror image of "real" coordinates
 

+    bool has_alpha = HasAlpha();
+

     // Create pointer-based array to accelerate access to wxImage's data
     unsigned char ** data = new unsigned char * [GetHeight()];
     // Create pointer-based array to accelerate access to wxImage's data
     unsigned char ** data = new unsigned char * [GetHeight()];

-

     data[0] = GetData();
     data[0] = GetData();

-

     for (i = 1; i < GetHeight(); i++)
         data[i] = data[i - 1] + (3 * GetWidth());
 
     for (i = 1; i < GetHeight(); i++)
         data[i] = data[i - 1] + (3 * GetWidth());
 

+    // Same for alpha channel
+    unsigned char ** alpha = NULL;
+    if (has_alpha)
+    {
+        alpha = new unsigned char * [GetHeight()];
+        alpha[0] = GetAlpha();
+        for (i = 1; i < GetHeight(); i++)
+            alpha[i] = alpha[i - 1] + GetWidth();
+    }
+

     // precompute coefficients for rotation formula
     // (sine and cosine of the angle)
     const double cos_angle = cos(angle);
     // precompute coefficients for rotation formula
     // (sine and cosine of the angle)
     const double cos_angle = cos(angle);


@@ -1677,7 +2166,11 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
     int x2 = (int) ceil (wxMax (wxMax(p1.x, p2.x), wxMax(p3.x, p4.x)));
     int y2 = (int) ceil (wxMax (wxMax(p1.y, p2.y), wxMax(p3.y, p4.y)));
 
     int x2 = (int) ceil (wxMax (wxMax(p1.x, p2.x), wxMax(p3.x, p4.x)));
     int y2 = (int) ceil (wxMax (wxMax(p1.y, p2.y), wxMax(p3.y, p4.y)));
 

+    // Create rotated image

     wxImage rotated (x2 - x1 + 1, y2 - y1 + 1, false);
     wxImage rotated (x2 - x1 + 1, y2 - y1 + 1, false);

+    // With alpha channel
+    if (has_alpha)
+        rotated.SetAlpha();

 
     if (offset_after_rotation != NULL)
     {
 
     if (offset_after_rotation != NULL)
     {


@@ -1690,6 +2183,10 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
     //
     unsigned char * dst = rotated.GetData();
 
     //
     unsigned char * dst = rotated.GetData();
 

+    unsigned char * alpha_dst = NULL;
+    if (has_alpha)
+        alpha_dst = rotated.GetAlpha();
+

     // GRG: if the original image has a mask, use its RGB values
     //      as the blank pixel, else, fall back to default (black).
     //
     // GRG: if the original image has a mask, use its RGB values
     //      as the blank pixel, else, fall back to default (black).
     //


@@ -1775,28 +2272,52 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
                         unsigned char *p = data[y1] + (3 * x1);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);
                         unsigned char *p = data[y1] + (3 * x1);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);

-                        *(dst++) = *(p++);
+                        *(dst++) = *p;
+
+                        if (has_alpha)
+                        {
+                            unsigned char *p = alpha[y1] + x1;
+                            *(alpha_dst++) = *p;
+                        }

                     }
                     else if (d2 < gs_Epsilon)
                     {
                         unsigned char *p = data[y1] + (3 * x2);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);
                     }
                     else if (d2 < gs_Epsilon)
                     {
                         unsigned char *p = data[y1] + (3 * x2);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);

-                        *(dst++) = *(p++);
+                        *(dst++) = *p;
+
+                        if (has_alpha)
+                        {
+                            unsigned char *p = alpha[y1] + x2;
+                            *(alpha_dst++) = *p;
+                        }

                     }
                     else if (d3 < gs_Epsilon)
                     {
                         unsigned char *p = data[y2] + (3 * x2);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);
                     }
                     else if (d3 < gs_Epsilon)
                     {
                         unsigned char *p = data[y2] + (3 * x2);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);

-                        *(dst++) = *(p++);
+                        *(dst++) = *p;
+
+                        if (has_alpha)
+                        {
+                            unsigned char *p = alpha[y2] + x2;
+                            *(alpha_dst++) = *p;
+                        }

                     }
                     else if (d4 < gs_Epsilon)
                     {
                         unsigned char *p = data[y2] + (3 * x1);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);
                     }
                     else if (d4 < gs_Epsilon)
                     {
                         unsigned char *p = data[y2] + (3 * x1);
                         *(dst++) = *(p++);
                         *(dst++) = *(p++);

-                        *(dst++) = *(p++);
+                        *(dst++) = *p;
+
+                        if (has_alpha)
+                        {
+                            unsigned char *p = alpha[y2] + x1;
+                            *(alpha_dst++) = *p;
+                        }

                     }
                     else
                     {
                     }
                     else
                     {


@@ -1819,9 +2340,22 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
                                w3 * *(v3++) + w4 * *(v4++)) /
                               (w1 + w2 + w3 + w4) );
                         *(dst++) = (unsigned char)
                                w3 * *(v3++) + w4 * *(v4++)) /
                               (w1 + w2 + w3 + w4) );
                         *(dst++) = (unsigned char)

-                            ( (w1 * *(v1++) + w2 * *(v2++) +
-                               w3 * *(v3++) + w4 * *(v4++)) /
+                            ( (w1 * *v1 + w2 * *v2 +
+                               w3 * *v3 + w4 * *v4) /

                               (w1 + w2 + w3 + w4) );
                               (w1 + w2 + w3 + w4) );

+
+                        if (has_alpha)
+                        {
+                            unsigned char *v1 = alpha[y1] + (x1);
+                            unsigned char *v2 = alpha[y1] + (x2);
+                            unsigned char *v3 = alpha[y2] + (x2);
+                            unsigned char *v4 = alpha[y2] + (x1);
+
+                            *(alpha_dst++) = (unsigned char)
+                                ( (w1 * *v1 + w2 * *v2 +
+                                   w3 * *v3 + w4 * *v4) /
+                                  (w1 + w2 + w3 + w4) );
+                        }

                     }
                 }
                 else
                     }
                 }
                 else


@@ -1829,6 +2363,9 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
                     *(dst++) = blank_r;
                     *(dst++) = blank_g;
                     *(dst++) = blank_b;
                     *(dst++) = blank_r;
                     *(dst++) = blank_g;
                     *(dst++) = blank_b;

+
+                    if (has_alpha)
+                        *(alpha_dst++) = 0;

                 }
             }
         }
                 }
             }
         }


@@ -1850,13 +2387,22 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
                     unsigned char *p = data[ys] + (3 * xs);
                     *(dst++) = *(p++);
                     *(dst++) = *(p++);
                     unsigned char *p = data[ys] + (3 * xs);
                     *(dst++) = *(p++);
                     *(dst++) = *(p++);

-                    *(dst++) = *(p++);
+                    *(dst++) = *p;
+
+                    if (has_alpha)
+                    {
+                        unsigned char *p = alpha[ys] + (xs);
+                        *(alpha_dst++) = *p;
+                    }

                 }
                 else
                 {
                     *(dst++) = blank_r;
                     *(dst++) = blank_g;
                     *(dst++) = blank_b;
                 }
                 else
                 {
                     *(dst++) = blank_r;
                     *(dst++) = blank_g;
                     *(dst++) = blank_b;

+
+                    if (has_alpha)
+                        *(alpha_dst++) = 255;

                 }
             }
         }
                 }
             }
         }


@@ -1864,6 +2410,9 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i
 
     delete [] data;
 
 
     delete [] data;
 

+    if (has_alpha)
+        delete [] alpha;
+

     return rotated;
 }
 
     return rotated;
 }
 


@@ -1880,7 +2429,7 @@ class wxImageModule: public wxModule
 DECLARE_DYNAMIC_CLASS(wxImageModule)
 public:
     wxImageModule() {}
 DECLARE_DYNAMIC_CLASS(wxImageModule)
 public:
     wxImageModule() {}

-    bool OnInit() { wxImage::InitStandardHandlers(); return TRUE; };
+    bool OnInit() { wxImage::InitStandardHandlers(); return true; };

     void OnExit() { wxImage::CleanUpHandlers(); };
 };
 
     void OnExit() { wxImage::CleanUpHandlers(); };
 };