X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/995612e2abc1131458863ed1d3e55206df7c33de..b068c4e8a1f4919360329c345eae36ff95ab5a10:/src/common/image.cpp

diff --git a/src/common/image.cpp b/src/common/image.cpp
index 5c304f0a9d..05344a678f 100644
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -437,8 +437,32 @@ bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype )
         return FALSE;
 }
 
+bool wxImage::CanRead( const wxString &name )
+{
+#if wxUSE_STREAMS
+  wxFileInputStream stream(name);
+  return CanRead(stream);
+#else
+  return FALSE;
+#endif
+}
+
 #if wxUSE_STREAMS
 
+bool wxImage::CanRead( wxInputStream &stream )
+{
+  wxList &list=GetHandlers();
+  
+  for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() )
+    {  
+      wxImageHandler *handler=(wxImageHandler*)node->GetData();
+      if (handler->CanRead( stream ))
+	return TRUE;
+    }
+
+  return FALSE;
+}
+
 bool wxImage::LoadFile( wxInputStream& stream, long type )
 {
     UnRef();
@@ -628,7 +652,7 @@ void wxImage::CleanUpHandlers()
 //-----------------------------------------------------------------------------
 
 #if !USE_SHARED_LIBRARIES
-IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxImageHandler,wxObject)
 #endif
 
 #if wxUSE_STREAMS
@@ -1238,9 +1262,22 @@ wxImage::wxImage( const wxBitmap &bitmap )
 {
     wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") );
 
-    GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(),
-        0, 0,
-        bitmap.GetWidth(), bitmap.GetHeight() );
+    GdkImage *gdk_image = (GdkImage*) NULL;
+    if (bitmap.GetPixmap())
+    {
+        gdk_image = gdk_image_get( bitmap.GetPixmap(),
+            0, 0,
+            bitmap.GetWidth(), bitmap.GetHeight() );
+    } else
+    if (bitmap.GetBitmap())
+    {
+        gdk_image = gdk_image_get( bitmap.GetBitmap(),
+            0, 0,
+            bitmap.GetWidth(), bitmap.GetHeight() );
+    } else
+    {
+        wxFAIL_MSG( wxT("Ill-formed bitmap") );
+    }
 
     wxCHECK_RET( gdk_image, wxT("couldn't create image") );
 
@@ -1264,7 +1301,12 @@ wxImage::wxImage( const wxBitmap &bitmap )
         SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
     }
 
-    GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );
+    GdkVisual *visual = (GdkVisual*) NULL;
+    if (bitmap.GetPixmap())
+        visual = gdk_window_get_visual( bitmap.GetPixmap() );
+    else
+        visual = gdk_window_get_visual( bitmap.GetBitmap() );
+
     if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent );
     int bpp = visual->depth;
     if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
@@ -1277,7 +1319,7 @@ wxImage::wxImage( const wxBitmap &bitmap )
         for (int i = 0; i < bitmap.GetWidth(); i++)
         {
             wxInt32 pixel = gdk_image_get_pixel( gdk_image, i, j );
-            pixel = wxINT32_SWAP_ON_BE( pixel );
+            // pixel = wxINT32_SWAP_ON_BE( pixel );
             if (bpp <= 8)
             {
                 data[pos] = cmap->colors[pixel].red >> 8;