X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ec85956ae93cdbbb4351a5b34e595ea56f296fc4..77e79241e89f1968dd2f5a2faa6513ebd4df2087:/src/common/image.cpp

diff --git a/src/common/image.cpp b/src/common/image.cpp
index d261424034..125e97613a 100644
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -148,17 +148,6 @@ wxImage::wxImage( wxInputStream& stream, const wxString& mimetype, int index )
 }
 #endif // wxUSE_STREAMS
 
-wxImage::wxImage( const wxImage& image )
-    : wxObject()
-{
-    Ref(image);
-}
-
-wxImage::wxImage( const wxImage* image )
-{
-    if (image) Ref(*image);
-}
-
 wxImage::wxImage( const char** xpmData )
 {
     Create(xpmData);
@@ -261,9 +250,18 @@ wxImage wxImage::Copy() const
     image.SetMask( M_IMGDATA->m_hasMask );
 
     memcpy( data, GetData(), M_IMGDATA->m_width*M_IMGDATA->m_height*3 );
-
-    // also copy the image options
+    
     wxImageRefData *imgData = (wxImageRefData *)image.m_refData;
+    
+    // also copy the alpha channel
+    if (HasAlpha())
+    {
+        image.SetAlpha();
+        unsigned char* alpha = image.GetAlpha();
+        memcpy( alpha, GetAlpha(), M_IMGDATA->m_width*M_IMGDATA->m_height );
+    }
+    
+    // also copy the image options
     imgData->m_optionNames = M_IMGDATA->m_optionNames;
     imgData->m_optionValues = M_IMGDATA->m_optionValues;
 
@@ -1594,7 +1592,7 @@ bool wxImage::LoadFile( wxInputStream& stream, long type, int index )
         return false;
     }
 
-    if (!handler->CanRead(stream))
+    if (stream.IsSeekable() && !handler->CanRead(stream))
     {
         wxLogError(_("Image file is not of type %d."), type);
         return false;
@@ -1618,7 +1616,7 @@ bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype, int ind
         return false;
     }
 
-    if (!handler->CanRead(stream))
+    if (stream.IsSeekable() && !handler->CanRead(stream))
     {
         wxLogError(_("Image file is not of type %s."), (const wxChar*) mimetype);
         return false;