From a1cd9564788c4980d1a9feecca5c96a58a80ee0f Mon Sep 17 00:00:00 2001
From: Robert Roebling <robert@roebling.de>
Date: Thu, 26 Jan 2006 12:07:10 +0000
Subject: [PATCH]   wxImage::Copy() forgot the alpha channel.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37150 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/image.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/common/image.cpp b/src/common/image.cpp
index 02df26fdd9..807bdd2890 100644
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -261,9 +261,18 @@ 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;
 
-- 
2.50.0