fixed Set(wxPercentOf) (bug #12227)

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

diff --git a/src/common/image.cpp b/src/common/image.cpp
index cbbf97b0bc2b2f1ad4d4532d978569b5b14a65af..903defa811ebbf5dd557d4fa389b387fd7a1b6e5 100644 (file)
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -56,6 +56,10 @@ public:
     bool            m_hasMask;
     unsigned char   m_maskRed,m_maskGreen,m_maskBlue;
     bool            m_ok;
     bool            m_hasMask;
     unsigned char   m_maskRed,m_maskGreen,m_maskBlue;
     bool            m_ok;

+    bool            m_static;
+    wxPalette       m_palette;
+    wxArrayString   m_optionNames;
+    wxArrayString   m_optionValues;

 };
 
 wxImageRefData::wxImageRefData()
 };
 
 wxImageRefData::wxImageRefData()


@@ -68,11 +72,12 @@ wxImageRefData::wxImageRefData()
     m_maskGreen = 0;
     m_maskBlue = 0;
     m_hasMask = FALSE;
     m_maskGreen = 0;
     m_maskBlue = 0;
     m_hasMask = FALSE;

+    m_static = FALSE;

 }
 
 wxImageRefData::~wxImageRefData()
 {
 }
 
 wxImageRefData::~wxImageRefData()
 {

-    if (m_data)
+    if (m_data && !m_static)

         free( m_data );
 }
 
         free( m_data );
 }
 


@@ -82,7 +87,7 @@ wxList wxImage::sm_handlers;
 
 #define M_IMGDATA ((wxImageRefData *)m_refData)
 
 
 #define M_IMGDATA ((wxImageRefData *)m_refData)
 

-    IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)

 
 wxImage::wxImage()
 {
 
 wxImage::wxImage()
 {


@@ -93,6 +98,11 @@ wxImage::wxImage( int width, int height )
     Create( width, height );
 }
 
     Create( width, height );
 }
 

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

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


@@ -127,6 +137,8 @@ wxImage::wxImage( const wxImage* image )
 
 void wxImage::Create( int width, int height )
 {
 
 void wxImage::Create( int width, int height )
 {

+    UnRef();
+

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


@@ -144,11 +156,51 @@ void wxImage::Create( int width, int height )
     }
 }
 
     }
 }
 

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

 void wxImage::Destroy()
 {
     UnRef();
 }
 
 void wxImage::Destroy()
 {
     UnRef();
 }
 

+wxImage wxImage::Copy() const
+{
+    wxImage image;
+
+    wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+
+    image.Create( M_IMGDATA->m_width, M_IMGDATA->m_height );
+
+    char unsigned *data = image.GetData();
+
+    wxCHECK_MSG( data, image, wxT("unable to create image") );
+
+    if (M_IMGDATA->m_hasMask)
+        image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
+
+    memcpy( data, GetData(), M_IMGDATA->m_width*M_IMGDATA->m_height*3 );
+
+    return image;
+}
+

 wxImage wxImage::Scale( int width, int height ) const
 {
     wxImage image;
 wxImage wxImage::Scale( int width, int height ) const
 {
     wxImage image;


@@ -188,6 +240,91 @@ wxImage wxImage::Scale( int width, int height ) const
     return image;
 }
 
     return image;
 }
 

+wxImage wxImage::Rotate90( bool clockwise ) const
+{
+    wxImage image;
+
+    wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+
+    image.Create( M_IMGDATA->m_height, M_IMGDATA->m_width );
+
+    char unsigned *data = image.GetData();
+
+    wxCHECK_MSG( data, image, wxT("unable to create image") );
+
+    if (M_IMGDATA->m_hasMask)
+        image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
+
+    long height = M_IMGDATA->m_height;
+    long width  = M_IMGDATA->m_width;
+
+    char unsigned *source_data = M_IMGDATA->m_data;
+    char unsigned *target_data;
+
+    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;
+            else
+                target_data = data + ((height*(width-1)) + j - (i*height))*3;
+            memcpy( target_data, source_data, 3 );
+            source_data += 3;
+        }
+    }
+
+    return image;
+}
+
+wxImage wxImage::Mirror( bool horizontally ) const
+{
+    wxImage image;
+
+    wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+
+    image.Create( M_IMGDATA->m_width, M_IMGDATA->m_height );
+
+    char unsigned *data = image.GetData();
+
+    wxCHECK_MSG( data, image, wxT("unable to create image") );
+
+    if (M_IMGDATA->m_hasMask)
+        image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
+
+    long height = M_IMGDATA->m_height;
+    long width  = M_IMGDATA->m_width;
+
+    char unsigned *source_data = M_IMGDATA->m_data;
+    char unsigned *target_data;
+
+    if (horizontally)
+    {
+        for (long j = 0; j < height; j++)
+        {
+            data += width*3;
+            target_data = data-3;
+            for (long i = 0; i < width; i++)
+            {
+                memcpy( target_data, source_data, 3 );
+                source_data += 3;
+                target_data -= 3;
+            }
+        }
+    }
+    else
+    {
+        for (long i = 0; i < height; i++)
+        {
+            target_data = data + 3*width*(height-1-i);
+            memcpy( target_data, source_data, (size_t)3*width );
+            source_data += 3*width;
+        }
+    }
+
+    return image;
+}
+

 wxImage wxImage::GetSubImage( const wxRect &rect ) const
 {
     wxImage image;
 wxImage wxImage::GetSubImage( const wxRect &rect ) const
 {
     wxImage image;


@@ -225,13 +362,93 @@ wxImage wxImage::GetSubImage( const wxRect &rect ) const
     return image;
 }
 
     return image;
 }
 

+void wxImage::Paste( const wxImage &image, int x, int y )
+{
+    wxCHECK_RET( Ok(), wxT("invalid image") );
+    wxCHECK_RET( image.Ok(), wxT("invalid image") );
+
+    int xx = 0;
+    int yy = 0;
+    int width = image.GetWidth();
+    int height = image.GetHeight();
+
+    if (x < 0)
+    {
+        xx = -x;
+        width += x;
+    }
+    if (y < 0)
+    {
+        yy = -y;
+        height += y;
+    }
+
+    if ((x+xx)+width > M_IMGDATA->m_width)
+        width = M_IMGDATA->m_width - (x+xx);
+    if ((y+yy)+height > M_IMGDATA->m_height)
+        height = M_IMGDATA->m_height - (y+yy);
+
+    if (width < 1) return;
+    if (height < 1) return;
+
+    if ((!HasMask() && !image.HasMask()) ||
+       ((HasMask() && image.HasMask() &&
+         (GetMaskRed()==image.GetMaskRed()) &&
+         (GetMaskGreen()==image.GetMaskGreen()) &&
+         (GetMaskBlue()==image.GetMaskBlue()))))
+    {
+        width *= 3;
+        unsigned char* source_data = image.GetData() + xx*3 + yy*3*image.GetWidth();
+        int source_step = image.GetWidth()*3;
+
+        unsigned char* target_data = GetData() + (x+xx)*3 + (y+yy)*3*M_IMGDATA->m_width;
+        int target_step = M_IMGDATA->m_width*3;
+        for (int j = 0; j < height; j++)
+        {
+            memcpy( target_data, source_data, width );
+            source_data += source_step;
+            target_data += target_step;
+        }
+        return;
+    }
+    
+    if (!HasMask() && image.HasMask())
+    {
+        unsigned char r = image.GetMaskRed();
+        unsigned char g = image.GetMaskGreen();
+        unsigned char b = image.GetMaskBlue();
+        
+        width *= 3;
+        unsigned char* source_data = image.GetData() + xx*3 + yy*3*image.GetWidth();
+        int source_step = image.GetWidth()*3;
+
+        unsigned char* target_data = GetData() + (x+xx)*3 + (y+yy)*3*M_IMGDATA->m_width;
+        int target_step = M_IMGDATA->m_width*3;
+        
+        for (int j = 0; j < height; j++)
+        {
+            for (int i = 0; i < width; i+=3)
+            {
+                if ((source_data[i]   != r) && 
+                    (source_data[i+1] != g) && 
+                    (source_data[i+2] != b))
+                {
+                    memcpy( target_data+i, source_data+i, 3 );
+                }
+            } 
+            source_data += source_step;
+            target_data += target_step;
+        }
+    }
+}
+

 void wxImage::Replace( unsigned char r1, unsigned char g1, unsigned char b1,
                        unsigned char r2, unsigned char g2, unsigned char b2 )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
     char unsigned *data = GetData();
 void wxImage::Replace( unsigned char r1, unsigned char g1, unsigned char b1,
                        unsigned char r2, unsigned char g2, unsigned char b2 )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 
     char unsigned *data = GetData();

-    
+

     const int w = GetWidth();
     const int h = GetHeight();
 
     const int w = GetWidth();
     const int h = GetHeight();
 


@@ -264,7 +481,7 @@ void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned c
     M_IMGDATA->m_data[ pos+2 ] = b;
 }
 
     M_IMGDATA->m_data[ pos+2 ] = b;
 }
 

-unsigned char wxImage::GetRed( int x, int y )
+unsigned char wxImage::GetRed( int x, int y ) const

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


@@ -278,7 +495,7 @@ unsigned char wxImage::GetRed( int x, int y )
     return M_IMGDATA->m_data[pos];
 }
 
     return M_IMGDATA->m_data[pos];
 }
 

-unsigned char wxImage::GetGreen( int x, int y )
+unsigned char wxImage::GetGreen( int x, int y ) const

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


@@ -292,7 +509,7 @@ unsigned char wxImage::GetGreen( int x, int y )
     return M_IMGDATA->m_data[pos+1];
 }
 
     return M_IMGDATA->m_data[pos+1];
 }
 

-unsigned char wxImage::GetBlue( int x, int y )
+unsigned char wxImage::GetBlue( int x, int y ) const

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


@@ -338,6 +555,34 @@ void wxImage::SetData( char unsigned *data )
     m_refData = newRefData;
 }
 
     m_refData = newRefData;
 }
 

+void wxImage::SetData( char unsigned *data, int new_width, int new_height )
+{
+    wxImageRefData *newRefData = new wxImageRefData();
+
+    if (m_refData)
+    {
+        newRefData->m_width = new_width;
+        newRefData->m_height = new_height;
+        newRefData->m_data = data;
+        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;
+    }
+    else
+    {
+        newRefData->m_width = new_width;
+        newRefData->m_height = new_height;
+        newRefData->m_data = data;
+        newRefData->m_ok = TRUE;
+    }
+
+    UnRef();
+
+    m_refData = newRefData;
+}
+

 void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );
 void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
 {
     wxCHECK_RET( Ok(), wxT("invalid image") );


@@ -397,6 +642,80 @@ int wxImage::GetHeight() const
     return M_IMGDATA->m_height;
 }
 
     return M_IMGDATA->m_height;
 }
 

+// Palette functions
+
+bool wxImage::HasPalette() const
+{
+    if (!Ok())
+        return FALSE;
+
+    return M_IMGDATA->m_palette.Ok();
+}
+
+const wxPalette& wxImage::GetPalette() const
+{
+    wxCHECK_MSG( Ok(), wxNullPalette, wxT("invalid image") );
+
+    return M_IMGDATA->m_palette;
+}
+
+void wxImage::SetPalette(const wxPalette& palette)
+{
+    wxCHECK_RET( Ok(), wxT("invalid image") );
+
+    M_IMGDATA->m_palette = palette;
+}
+
+// Option functions (arbitrary name/value mapping)
+void wxImage::SetOption(const wxString& name, const wxString& value)
+{
+    wxCHECK_RET( Ok(), wxT("invalid image") );
+
+    int idx = M_IMGDATA->m_optionNames.Index(name, FALSE);
+    if (idx == wxNOT_FOUND)
+    {
+        M_IMGDATA->m_optionNames.Add(name);
+        M_IMGDATA->m_optionValues.Add(value);
+    }
+    else
+    {
+        M_IMGDATA->m_optionNames[idx] = name;
+        M_IMGDATA->m_optionValues[idx] = value;
+    }
+}
+
+void wxImage::SetOption(const wxString& name, int value)
+{
+    wxString valStr;
+    valStr.Printf(wxT("%d"), value);
+    SetOption(name, valStr);
+}
+
+wxString wxImage::GetOption(const wxString& name) const
+{
+    wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid image") );
+
+    int idx = M_IMGDATA->m_optionNames.Index(name, FALSE);
+    if (idx == wxNOT_FOUND)
+        return wxEmptyString;
+    else
+        return M_IMGDATA->m_optionValues[idx];
+}
+
+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
+{
+    wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") );
+
+    return (M_IMGDATA->m_optionNames.Index(name, FALSE) != wxNOT_FOUND);
+}
+

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


@@ -447,9 +766,9 @@ bool wxImage::SaveFile( const wxString& filename, int type )
         wxBufferedOutputStream bstream( stream );
         return SaveFile(bstream, type);
     }
         wxBufferedOutputStream bstream( stream );
         return SaveFile(bstream, type);
     }

-    else

 #endif // wxUSE_STREAMS
 #endif // wxUSE_STREAMS

-        return FALSE;
+
+    return FALSE;

 }
 
 bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype )
 }
 
 bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype )


@@ -462,9 +781,9 @@ bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype )
         wxBufferedOutputStream bstream( stream );
         return SaveFile(bstream, mimetype);
     }
         wxBufferedOutputStream bstream( stream );
         return SaveFile(bstream, mimetype);
     }

-    else

 #endif // wxUSE_STREAMS
 #endif // wxUSE_STREAMS

-        return FALSE;
+
+    return FALSE;

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


@@ -805,6 +1124,13 @@ wxBitmap wxImage::ConvertToBitmap() const
     hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight );
     ::SelectObject( memdc, hbitmap);
 
     hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight );
     ::SelectObject( memdc, hbitmap);
 

+    HPALETTE hOldPalette = 0;
+    if (GetPalette().Ok())
+    {
+        hOldPalette = ::SelectPalette(memdc, (HPALETTE) GetPalette().GetHPALETTE(), FALSE);
+        ::RealizePalette(memdc);
+    }
+

     // copy image data into DIB data and then into DDB (in a loop)
     unsigned char *data = GetData();
     int i, j, n;
     // copy image data into DIB data and then into DDB (in a loop)
     unsigned char *data = GetData();
     int i, j, n;


@@ -854,6 +1180,9 @@ wxBitmap wxImage::ConvertToBitmap() const
     }
     bitmap.SetHBITMAP( (WXHBITMAP) hbitmap );
 
     }
     bitmap.SetHBITMAP( (WXHBITMAP) hbitmap );
 

+    if (hOldPalette)
+        SelectPalette(memdc, hOldPalette, FALSE);
+

     // similarly, created an mono-bitmap for the possible mask
     if( HasMask() )
     {
     // similarly, created an mono-bitmap for the possible mask
     if( HasMask() )
     {


@@ -885,10 +1214,10 @@ wxBitmap wxImage::ConvertToBitmap() const
                 for(i=0; i<width; i++ )
                 {
                     // was causing a code gen bug in cw : if( ( cr !=r) || (cg!=g) || (cb!=b) )
                 for(i=0; i<width; i++ )
                 {
                     // was causing a code gen bug in cw : if( ( cr !=r) || (cg!=g) || (cb!=b) )

-                        unsigned char cr = (*(ptdata++)) ;
-                        unsigned char cg = (*(ptdata++)) ;
-                        unsigned char cb = (*(ptdata++)) ;
-                        
+                    unsigned char cr = (*(ptdata++)) ;
+                    unsigned char cg = (*(ptdata++)) ;
+                    unsigned char cb = (*(ptdata++)) ;
+

                     if( ( cr !=r) || (cg!=g) || (cb!=b) )
                     {
                         *(ptbits++) = one;
                     if( ( cr !=r) || (cg!=g) || (cb!=b) )
                     {
                         *(ptbits++) = one;


@@ -1109,11 +1438,11 @@ wxBitmap wxImage::ConvertToBitmap() const
     int g_mask = GetMaskGreen();
     int b_mask = GetMaskBlue();
 
     int g_mask = GetMaskGreen();
     int b_mask = GetMaskBlue();
 

-                CGrafPtr         origPort ;
-                GDHandle        origDevice ;
-                
-                GetGWorld( &origPort , &origDevice ) ;
-                SetGWorld( bitmap.GetHBITMAP() , NULL ) ;
+    CGrafPtr origPort ;
+    GDHandle origDevice ;
+
+    GetGWorld( &origPort , &origDevice ) ;
+    SetGWorld( bitmap.GetHBITMAP() , NULL ) ;

 
     register unsigned char* data = GetData();
 
 
     register unsigned char* data = GetData();
 


@@ -1122,15 +1451,15 @@ wxBitmap wxImage::ConvertToBitmap() const
     {
         for (int x = 0; x < width; x++)
         {
     {
         for (int x = 0; x < width; x++)
         {

-                    unsigned char r = data[index++];
-                    unsigned char g = data[index++];
-                    unsigned char b = data[index++];
-                       RGBColor color ;
-                       color.red = ( r  << 8 ) + r ;
-                       color.green = ( g << 8 ) + g ;
-                       color.blue = ( b << 8 ) + b ;
-                       SetCPixel( x , y , &color ) ;
-               }
+            unsigned char r = data[index++];
+            unsigned char g = data[index++];
+            unsigned char b = data[index++];
+            RGBColor color ;
+            color.red = ( r  << 8 ) + r ;
+            color.green = ( g << 8 ) + g ;
+            color.blue = ( b << 8 ) + b ;
+            SetCPixel( x , y , &color ) ;
+        }

     }  // for height
 
            SetGWorld( origPort , origDevice ) ;
     }  // for height
 
            SetGWorld( origPort , origDevice ) ;


@@ -1230,7 +1559,7 @@ wxImage::wxImage( const wxBitmap &bitmap )
             ptbits += 3;
         }
         ptbits += padding;
             ptbits += 3;
         }
         ptbits += padding;

-    }        
+    }

 
     // similarly, set data according to the possible mask bitmap
     if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() )
 
     // similarly, set data according to the possible mask bitmap
     if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() )


@@ -1307,16 +1636,16 @@ wxBitmap wxImage::ConvertToMonoBitmap( unsigned char red, unsigned char green, u
     bitmap.SetWidth( width );
 
     bitmap.SetBitmap( gdk_pixmap_new( wxRootWindow->window, width, height, 1 ) );
     bitmap.SetWidth( width );
 
     bitmap.SetBitmap( gdk_pixmap_new( wxRootWindow->window, width, height, 1 ) );

-    
+

     bitmap.SetDepth( 1 );
 
     GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
     wxASSERT( visual );
     bitmap.SetDepth( 1 );
 
     GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
     wxASSERT( visual );

-    
+

     // Create picture image
 
     unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
     // Create picture image
 
     unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height );

-    
+

     GdkImage *data_image =
         gdk_image_new_bitmap( visual, data_data, width, height );
 
     GdkImage *data_image =
         gdk_image_new_bitmap( visual, data_data, width, height );
 


@@ -1361,10 +1690,10 @@ wxBitmap wxImage::ConvertToMonoBitmap( unsigned char red, unsigned char green, u
                 else
                     gdk_image_put_pixel( mask_image, x, y, 0 );
             }
                 else
                     gdk_image_put_pixel( mask_image, x, y, 0 );
             }

-            
+

             if ((r == red) && (b == blue) && (g == green))
                 gdk_image_put_pixel( data_image, x, y, 1 );
             if ((r == red) && (b == blue) && (g == green))
                 gdk_image_put_pixel( data_image, x, y, 1 );

-            else   
+            else

                 gdk_image_put_pixel( data_image, x, y, 0 );
 
         } // for
                 gdk_image_put_pixel( data_image, x, y, 0 );
 
         } // for


@@ -1413,7 +1742,7 @@ wxBitmap wxImage::ConvertToBitmap() const
 
     GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
     wxASSERT( visual );
 
     GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
     wxASSERT( visual );

-    
+

     int bpp = visual->depth;
 
     bitmap.SetDepth( bpp );
     int bpp = visual->depth;
 
     bitmap.SetDepth( bpp );


@@ -1648,7 +1977,7 @@ wxImage::wxImage( const wxBitmap &bitmap )
     int green_shift_left = 0;
     int blue_shift_left = 0;
     bool use_shift = FALSE;
     int green_shift_left = 0;
     int blue_shift_left = 0;
     bool use_shift = FALSE;

-    
+

     if (bitmap.GetPixmap())
     {
         GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );
     if (bitmap.GetPixmap())
     {
         GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );


@@ -1662,7 +1991,7 @@ wxImage::wxImage( const wxBitmap &bitmap )
         green_shift_left = 8-visual->green_prec;
         blue_shift_right = visual->blue_shift;
         blue_shift_left = 8-visual->blue_prec;
         green_shift_left = 8-visual->green_prec;
         blue_shift_right = visual->blue_shift;
         blue_shift_left = 8-visual->blue_prec;

-        
+

         use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR);
     }
     if (bitmap.GetBitmap())
         use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR);
     }
     if (bitmap.GetBitmap())


@@ -1670,7 +1999,7 @@ wxImage::wxImage( const wxBitmap &bitmap )
         bpp = 1;
     }
 
         bpp = 1;
     }
 

-    
+

     GdkColormap *cmap = gtk_widget_get_default_colormap();
 
     long pos = 0;
     GdkColormap *cmap = gtk_widget_get_default_colormap();
 
     long pos = 0;


@@ -1699,17 +2028,17 @@ wxImage::wxImage( const wxBitmap &bitmap )
                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;
                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;

-                } 
+                }

             else if (cmap->colors)
             {
                 data[pos] =   cmap->colors[pixel].red   >> 8;
                 data[pos+1] = cmap->colors[pixel].green >> 8;
                 data[pos+2] = cmap->colors[pixel].blue  >> 8;
             else if (cmap->colors)
             {
                 data[pos] =   cmap->colors[pixel].red   >> 8;
                 data[pos+1] = cmap->colors[pixel].green >> 8;
                 data[pos+2] = cmap->colors[pixel].blue  >> 8;

-            } 
+            }

             else
             {
                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
             else
             {
                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );

-            } 
+            }

 
             if (gdk_image_mask)
             {
 
             if (gdk_image_mask)
             {


@@ -1943,23 +2272,14 @@ wxBitmap wxImage::ConvertToBitmap() const
 
     bitmap.Create( width, height, bpp );
 
 
     bitmap.Create( width, height, bpp );
 

-    /*

     // Create mask
 
     // Create mask
 

-      GdkImage *mask_image = (GdkImage*) NULL;
-
-        if (HasMask())
-        {
-        unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
-
-          mask_image =  gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height );
-
-            wxMask *mask = new wxMask();
-            mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 );
-
-              bitmap.SetMask( mask );
-              }
-    */
+    XImage *mask_image = (XImage*) NULL;
+    if (HasMask())
+    {
+        mask_image = XCreateImage( dpy, vis, 1, ZPixmap, 0, 0, width, height, 32, 0 );
+        mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
+    }

 
     // Retrieve depth info
 
 
     // Retrieve depth info
 


@@ -1995,11 +2315,9 @@ wxBitmap wxImage::ConvertToBitmap() const
         else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
     }
 
         else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
     }
 

-    /*

     int r_mask = GetMaskRed();
     int g_mask = GetMaskGreen();
     int b_mask = GetMaskBlue();
     int r_mask = GetMaskRed();
     int g_mask = GetMaskGreen();
     int b_mask = GetMaskBlue();

-    */

 
     XColor colors[256];
     if (bpp == 8)
 
     XColor colors[256];
     if (bpp == 8)


@@ -2013,6 +2331,8 @@ wxBitmap wxImage::ConvertToBitmap() const
     wxSearchColor scolor( 256, colors );
     unsigned char* data = GetData();
 
     wxSearchColor scolor( 256, colors );
     unsigned char* data = GetData();
 

+    bool hasMask = HasMask();
+

     int index = 0;
     for (int y = 0; y < height; y++)
     {
     int index = 0;
     for (int y = 0; y < height; y++)
     {


@@ -2025,15 +2345,13 @@ wxBitmap wxImage::ConvertToBitmap() const
             int b = data[index];
             index++;
 
             int b = data[index];
             index++;
 

-            /*
-            if (HasMask())
+            if (hasMask)

             {
             {

-            if ((r == r_mask) && (b == b_mask) && (g == g_mask))
-            gdk_image_put_pixel( mask_image, x, y, 1 );
-            else
-            gdk_image_put_pixel( mask_image, x, y, 0 );
+              if ((r == r_mask) && (b == b_mask) && (g == g_mask))
+                XPutPixel( mask_image, x, y, 0 );
+              else
+                XPutPixel( mask_image, x, y, 1 );

             }
             }

-            */

 
             switch (bpp)
             {
 
             switch (bpp)
             {


@@ -2111,19 +2429,24 @@ wxBitmap wxImage::ConvertToBitmap() const
     XDestroyImage( data_image );
     XFreeGC( dpy, gc );
 
     XDestroyImage( data_image );
     XFreeGC( dpy, gc );
 

-    /*

     // Blit mask
     // Blit mask

+    if (HasMask())
+    {
+        wxBitmap maskBitmap(width, height, 1);

 
 

-      if (HasMask())
-      {
-      GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() );
+        GC gcMask = XCreateGC( dpy, (Pixmap) maskBitmap.GetPixmap(), (XtGCMask) 0, (XGCValues*)NULL );
+        XPutImage( dpy, (Drawable)maskBitmap.GetPixmap(), gcMask, mask_image, 0, 0, 0, 0, width, height );

 
 

-        gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
+        XDestroyImage( mask_image );
+        XFreeGC( dpy, gcMask );

 
 

-          gdk_image_destroy( mask_image );
-          gdk_gc_unref( mask_gc );
-          }
-    */
+        wxMask* mask = new wxMask;
+        mask->SetPixmap(maskBitmap.GetPixmap());
+
+        bitmap.SetMask(mask);
+
+        maskBitmap.SetPixmapNull();
+    }

 
     return bitmap;
 }
 
     return bitmap;
 }


@@ -2608,8 +2931,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule)
 unsigned long wxImage::CountColours( unsigned long stopafter )
 {
     wxHashTable h;
 unsigned long wxImage::CountColours( unsigned long stopafter )
 {
     wxHashTable h;

-    wxNode *node;
-    wxHNode *hnode;
+    wxObject dummy;

     unsigned char r, g, b, *p;
     unsigned long size, nentries, key;
 
     unsigned char r, g, b, *p;
     unsigned long size, nentries, key;
 


@@ -2624,20 +2946,13 @@ unsigned long wxImage::CountColours( unsigned long stopafter )
         b = *(p++);
         key = (r << 16) | (g << 8) | b;
 
         b = *(p++);
         key = (r << 16) | (g << 8) | b;
 

-        hnode = (wxHNode *) h.Get(key);
-
-        if (!hnode)
+        if (h.Get(key) == NULL)

         {
         {

-            h.Put(key, (wxObject *)(new wxHNode));
+            h.Put(key, &dummy);

             nentries++;
         }
     }
 
             nentries++;
         }
     }
 

-    // delete all HNodes
-    h.BeginFind();
-    while ((node = h.Next()) != NULL)
-        delete (wxHNode *)node->GetData();
-

     return nentries;
 }
 
     return nentries;
 }
 


@@ -2687,19 +3002,11 @@ unsigned long wxImage::ComputeHistogram( wxHashTable &h )
  * Rotation code by Carlos Moreno
  */
 
  * Rotation code by Carlos Moreno
  */
 

-struct wxRotationPixel
-{
-    unsigned char rgb[3];
-};
+// GRG: I've removed wxRotationPoint - we already have wxRealPoint which
+//      does exactly the same thing. And I also got rid of wxRotationPixel
+//      bacause of potential problems in architectures where alignment
+//      is an issue, so I had to rewrite parts of the code.

 
 

-struct wxRotationPoint
-{
-       wxRotationPoint (double _x, double _y) : x(_x), y(_y) {}
-       wxRotationPoint (const wxPoint & p) : x(p.x), y(p.y) {}
-       double x, y;
-};
-
-static const wxRotationPixel gs_BlankPixel = {0,0,0};

 static const double gs_Epsilon = 1e-10;
 
 static inline int wxCint (double x)
 static const double gs_Epsilon = 1e-10;
 
 static inline int wxCint (double x)


@@ -2714,167 +3021,238 @@ static inline int wxCint (double x)
 // repeating the time-consuming calls to these functions -- sin/cos can
 // be computed and stored in the calling function.
 
 // repeating the time-consuming calls to these functions -- sin/cos can
 // be computed and stored in the calling function.
 

-inline wxRotationPoint rotated_point (const wxRotationPoint & p, double cos_angle, double sin_angle, const wxRotationPoint & p0)
+inline wxRealPoint rotated_point (const wxRealPoint & p, double cos_angle, double sin_angle, const wxRealPoint & p0)

 {
 {

-    return wxRotationPoint (p0.x + (p.x - p0.x) * cos_angle - (p.y - p0.y) * sin_angle,
-                  p0.y + (p.y - p0.y) * cos_angle + (p.x - p0.x) * sin_angle);
+    return wxRealPoint (p0.x + (p.x - p0.x) * cos_angle - (p.y - p0.y) * sin_angle,
+                        p0.y + (p.y - p0.y) * cos_angle + (p.x - p0.x) * sin_angle);

 }
 
 }
 

-inline wxRotationPoint rotated_point (double x, double y, double cos_angle, double sin_angle, const wxRotationPoint & p0)
+inline wxRealPoint rotated_point (double x, double y, double cos_angle, double sin_angle, const wxRealPoint & p0)

 {
 {

-    return rotated_point (wxRotationPoint(x,y), cos_angle, sin_angle, p0);
+    return rotated_point (wxRealPoint(x,y), cos_angle, sin_angle, p0);

 }
 
 wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool interpolating, wxPoint * offset_after_rotation) const
 {
 }
 
 wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool interpolating, wxPoint * offset_after_rotation) const
 {

-    const wxImage& img = * this;

     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
 

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

 
 

-    data[0] = (wxRotationPixel *) img.GetData();
+    data[0] = GetData();

 
 

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

 
 

-        // pre-compute coefficients for rotation formula (sine and cosine of the angle)
+    // precompute coefficients for rotation formula
+    // (sine and cosine of the angle)

     const double cos_angle = cos(angle);
     const double sin_angle = sin(angle);
 
     const double cos_angle = cos(angle);
     const double sin_angle = sin(angle);
 

-        // Create new Image to store the result
-            // First, find rectangle that covers the rotated image;  to do that,
-            // rotate the four corners
-
-    const wxRotationPoint & p0 = centre_of_rotation;
+    // Create new Image to store the result
+    // First, find rectangle that covers the rotated image;  to do that,
+    // rotate the four corners

 
 

-    wxRotationPoint p1 = rotated_point (0, 0, cos_angle, sin_angle, p0);
-    wxRotationPoint p2 = rotated_point (0, img.GetHeight(), cos_angle, sin_angle, p0);
-    wxRotationPoint p3 = rotated_point (img.GetWidth(), 0, cos_angle, sin_angle, p0);
-    wxRotationPoint p4 = rotated_point (img.GetWidth(), img.GetHeight(), cos_angle, sin_angle, p0);
+    const wxRealPoint p0(centre_of_rotation.x, centre_of_rotation.y);

 
 

-    int x1 = floor (min (min(p1.x, p2.x), min(p3.x, p4.x)));
-    int y1 = floor (min (min(p1.y, p2.y), min(p3.y, p4.y)));
+    wxRealPoint p1 = rotated_point (0, 0, cos_angle, sin_angle, p0);
+    wxRealPoint p2 = rotated_point (0, GetHeight(), cos_angle, sin_angle, p0);
+    wxRealPoint p3 = rotated_point (GetWidth(), 0, cos_angle, sin_angle, p0);
+    wxRealPoint p4 = rotated_point (GetWidth(), GetHeight(), cos_angle, sin_angle, p0);

 
 

-    int x2 = ceil (max (max(p1.x, p2.x), max(p3.x, p4.x)));
-    int y2 = ceil (max (max(p1.y, p2.y), max(p3.y, p4.y)));
+    int x1 = (int) floor (wxMin (wxMin(p1.x, p2.x), wxMin(p3.x, p4.x)));
+    int y1 = (int) floor (wxMin (wxMin(p1.y, p2.y), wxMin(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)));

 
     wxImage rotated (x2 - x1 + 1, y2 - y1 + 1);
 
     if (offset_after_rotation != NULL)
     {
 
     wxImage rotated (x2 - x1 + 1, y2 - y1 + 1);
 
     if (offset_after_rotation != NULL)
     {

-       *offset_after_rotation = wxPoint (x1, y1);
+        *offset_after_rotation = wxPoint (x1, y1);

     }
 
     }
 

+    // GRG: The rotated (destination) image is always accessed
+    //      sequentially, so there is no need for a pointer-based
+    //      array here (and in fact it would be slower).
+    //
+    unsigned char * dst = rotated.GetData();

 
 

-    wxRotationPixel ** result_data = new wxRotationPixel * [rotated.GetHeight()];
+    // GRG: if the original image has a mask, use its RGB values
+    //      as the blank pixel, else, fall back to default (black).
+    //
+    unsigned char blank_r = 0;
+    unsigned char blank_g = 0;
+    unsigned char blank_b = 0;

 
 

-    result_data[0] = (wxRotationPixel *) rotated.GetData();
-
-    for (i = 1; i < rotated.GetHeight(); i++)
+    if (HasMask())

     {
     {

-        result_data[i] = result_data[i - 1] + rotated.GetWidth();
+        blank_r = GetMaskRed();
+        blank_g = GetMaskGreen();
+        blank_b = GetMaskBlue();
+        rotated.SetMaskColour( blank_r, blank_g, blank_b );

     }
 
     }
 

-        // Now, for each point of the rotated image, find where it came from, by
-        // performing an inverse rotation (a rotation of -angle) and getting the
-        // pixel at those coordinates
+    // Now, for each point of the rotated image, find where it came from, by
+    // performing an inverse rotation (a rotation of -angle) and getting the
+    // pixel at those coordinates
+
+    // GRG: I've taken the (interpolating) test out of the loops, so that
+    //      it is done only once, instead of repeating it for each pixel.

 
     int x;
 
     int x;

-    for (x = 0; x < rotated.GetWidth(); x++)
+    if (interpolating)

     {
         for (int y = 0; y < rotated.GetHeight(); y++)
         {
     {
         for (int y = 0; y < rotated.GetHeight(); y++)
         {

-            wxRotationPoint src = rotated_point (x + x1, y + y1, cos_angle, -sin_angle, p0);
-
-            if (interpolating)
+            for (x = 0; x < rotated.GetWidth(); x++)

             {
             {

-                if (0 < src.x && src.x < img.GetWidth() - 1 &&
-                    0 < src.y && src.y < img.GetHeight() - 1)
+                wxRealPoint src = rotated_point (x + x1, y + y1, cos_angle, -sin_angle, p0);
+
+                if (-0.25 < src.x && src.x < GetWidth() - 0.75 &&
+                    -0.25 < src.y && src.y < GetHeight() - 0.75)

                 {
                 {

-                        // interpolate using the 4 enclosing grid-points.  Those
-                        // points can be obtained using floor and ceiling of the
-                        // exact coordinates of the point
-
-                    const int x1 = wxCint(floor(src.x));
-                    const int y1 = wxCint(floor(src.y));
-                    const int x2 = wxCint(ceil(src.x));
-                    const int y2 = wxCint(ceil(src.y));
-
-                        // get four points and the distances (square of the distance,
-                        // for efficiency reasons) for the interpolation formula
-                    const wxRotationPixel & v1 = data[y1][x1];
-                    const wxRotationPixel & v2 = data[y1][x2];
-                    const wxRotationPixel & v3 = data[y2][x2];
-                    const wxRotationPixel & v4 = data[y2][x1];
+                    // interpolate using the 4 enclosing grid-points.  Those
+                    // points can be obtained using floor and ceiling of the
+                    // exact coordinates of the point
+                        // C.M. 2000-02-17:  when the point is near the border, special care is required.
+
+                    int x1, y1, x2, y2;
+
+                    if (0 < src.x && src.x < GetWidth() - 1)
+                    {
+                        x1 = wxCint(floor(src.x));
+                        x2 = wxCint(ceil(src.x));
+                    }
+                    else    // else means that x is near one of the borders (0 or width-1)
+                    {
+                        x1 = x2 = wxCint (src.x);
+                    }
+
+                    if (0 < src.y && src.y < GetHeight() - 1)
+                    {
+                        y1 = wxCint(floor(src.y));
+                        y2 = wxCint(ceil(src.y));
+                    }
+                    else
+                    {
+                        y1 = y2 = wxCint (src.y);
+                    }
+
+                    // get four points and the distances (square of the distance,
+                    // for efficiency reasons) for the interpolation formula
+
+                    // GRG: Do not calculate the points until they are
+                    //      really needed -- this way we can calculate
+                    //      just one, instead of four, if d1, d2, d3
+                    //      or d4 are < gs_Epsilon

 
                     const double d1 = (src.x - x1) * (src.x - x1) + (src.y - y1) * (src.y - y1);
                     const double d2 = (src.x - x2) * (src.x - x2) + (src.y - y1) * (src.y - y1);
                     const double d3 = (src.x - x2) * (src.x - x2) + (src.y - y2) * (src.y - y2);
                     const double d4 = (src.x - x1) * (src.x - x1) + (src.y - y2) * (src.y - y2);
 
 
                     const double d1 = (src.x - x1) * (src.x - x1) + (src.y - y1) * (src.y - y1);
                     const double d2 = (src.x - x2) * (src.x - x2) + (src.y - y1) * (src.y - y1);
                     const double d3 = (src.x - x2) * (src.x - x2) + (src.y - y2) * (src.y - y2);
                     const double d4 = (src.x - x1) * (src.x - x1) + (src.y - y2) * (src.y - y2);
 

-                        // Now interpolate as a weighted average of the four surrounding
-                        // points, where the weights are the distances to each of those points
+                    // Now interpolate as a weighted average of the four surrounding
+                    // points, where the weights are the distances to each of those points

 
 

-                        // If the point is exactly at one point of the grid of the source
-                        // image, then don't interpolate -- just assign the pixel
+                    // If the point is exactly at one point of the grid of the source
+                    // image, then don't interpolate -- just assign the pixel

 
 

-                    if (d1 < gs_Epsilon)               // d1,d2,d3,d4 are positive -- no need for abs()
+                    if (d1 < gs_Epsilon)        // d1,d2,d3,d4 are positive -- no need for abs()

                     {
                     {

-                       result_data[y][x] = v1;
+                        unsigned char *p = data[y1] + (3 * x1);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);

                     }
                     else if (d2 < gs_Epsilon)
                     {
                     }
                     else if (d2 < gs_Epsilon)
                     {

-                       result_data[y][x] = v2;
+                        unsigned char *p = data[y1] + (3 * x2);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);

                     }
                     else if (d3 < gs_Epsilon)
                     {
                     }
                     else if (d3 < gs_Epsilon)
                     {

-                       result_data[y][x] = v3;
+                        unsigned char *p = data[y2] + (3 * x2);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);

                     }
                     else if (d4 < gs_Epsilon)
                     {
                     }
                     else if (d4 < gs_Epsilon)
                     {

-                       result_data[y][x] = v4;
+                        unsigned char *p = data[y2] + (3 * x1);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);
+                        *(dst++) = *(p++);

                     }
                     else
                     {
                     }
                     else
                     {

-                               // weights for the weighted average are proportional to the inverse of the distance
-                       const w1 = 1/d1, w2 = 1/d2, w3 = 1/d3, w4 = 1/d4;
-                       
-                           for (int i = 0; i < 3; i++)     // repeat calculation for R, G, and B
-                       {
-                               result_data[y][x].rgb[i] =
-                               (unsigned char) ( (w1 * v1.rgb[i] + w2 * v2.rgb[i] +
-                                                                w3 * v3.rgb[i] + w4 * v4.rgb[i]) /
-                                                            (w1 + w2 + w3 + w4) );
-                           }
+                        // weights for the weighted average are proportional to the inverse of the distance
+                        unsigned char *v1 = data[y1] + (3 * x1);
+                        unsigned char *v2 = data[y1] + (3 * x2);
+                        unsigned char *v3 = data[y2] + (3 * x2);
+                        unsigned char *v4 = data[y2] + (3 * x1);
+
+                        const double w1 = 1/d1, w2 = 1/d2, w3 = 1/d3, w4 = 1/d4;
+
+                        // GRG: Unrolled.
+
+                        *(dst++) = (unsigned char)
+                            ( (w1 * *(v1++) + w2 * *(v2++) +
+                               w3 * *(v3++) + w4 * *(v4++)) /
+                              (w1 + w2 + w3 + w4) );
+                        *(dst++) = (unsigned char)
+                            ( (w1 * *(v1++) + w2 * *(v2++) +
+                               w3 * *(v3++) + w4 * *(v4++)) /
+                              (w1 + w2 + w3 + w4) );
+                        *(dst++) = (unsigned char)
+                            ( (w1 * *(v1++) + w2 * *(v2++) +
+                               w3 * *(v3++) + w4 * *(v4++)) /
+                              (w1 + w2 + w3 + w4) );

                     }
                 }
                 else
                 {
                     }
                 }
                 else
                 {

-                    result_data[y][x] = gs_BlankPixel;
+                    *(dst++) = blank_r;
+                    *(dst++) = blank_g;
+                    *(dst++) = blank_b;

                 }
             }
                 }
             }

-            else
+        }
+    }
+    else    // not interpolating
+    {
+        for (int y = 0; y < rotated.GetHeight(); y++)
+        {
+            for (x = 0; x < rotated.GetWidth(); x++)

             {
             {

-                const int & xs = wxCint (src.x);      // wxCint performs rounding to the
-                const int & ys = wxCint (src.y);      // closest integer
+                wxRealPoint src = rotated_point (x + x1, y + y1, cos_angle, -sin_angle, p0);

 
 

-                if (0 <= xs && xs < img.GetWidth() &&
-                    0 <= ys && ys < img.GetHeight())
+                const int xs = wxCint (src.x);      // wxCint rounds to the
+                const int ys = wxCint (src.y);      // closest integer
+
+                if (0 <= xs && xs < GetWidth() &&
+                    0 <= ys && ys < GetHeight())

                 {
                 {

-                    result_data[y][x] = data[ys][xs];
+                    unsigned char *p = data[ys] + (3 * xs);
+                    *(dst++) = *(p++);
+                    *(dst++) = *(p++);
+                    *(dst++) = *(p++);

                 }
                 else
                 {
                 }
                 else
                 {

-                    result_data[y][x] = gs_BlankPixel;
+                    *(dst++) = blank_r;
+                    *(dst++) = blank_g;
+                    *(dst++) = blank_b;

                 }
             }
         }
     }
 
                 }
             }
         }
     }
 

+    delete [] data;
+

     return rotated;
 }
 
     return rotated;
 }