made GetAlpha(x, y) const (the docs are already correct)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26786 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/image.h b/include/wx/image.h
index 778de2940492e5a152d923f4ecb1a35cd19d69bb..91217cd6669a1f70df2ebdc3f0020f59f9566d0c 100644 (file)
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -198,7 +198,7 @@ public:
     unsigned char GetBlue( int x, int y ) const;
 
     void SetAlpha(int x, int y, unsigned char alpha);
-    unsigned char GetAlpha(int x, int y);
+    unsigned char GetAlpha(int x, int y) const;
 
     // find first colour that is not used in the image and has higher
     // RGB values than <startR,startG,startB>

diff --git a/src/common/image.cpp b/src/common/image.cpp
index a5f3c35f484e78acf5247319c01815ec9d5eb02e..dbcff9c8837ba12ce57c309a2d3ddee3697ceddf 100644 (file)
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -796,7 +796,7 @@ void wxImage::SetAlpha(int x, int y, unsigned char alpha)
     M_IMGDATA->m_alpha[y*w + x] = alpha;
 }
 
-unsigned char wxImage::GetAlpha(int x, int y)
+unsigned char wxImage::GetAlpha(int x, int y) const
 {
     wxCHECK_MSG( Ok() && HasAlpha(), 0, wxT("invalid image or no alpha channel") );