X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/170acdc90e9f92f8b8120fa6c04acdbf45c89582..15cac64f7564d48c274c6490774a77bd8c09f808:/src/msw/statbmp.cpp

diff --git a/src/msw/statbmp.cpp b/src/msw/statbmp.cpp
index cd03008f89..418541bfd9 100644
--- a/src/msw/statbmp.cpp
+++ b/src/msw/statbmp.cpp
@@ -29,8 +29,10 @@
 #include "wx/statbmp.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/window.h"
     #include "wx/icon.h"
+    #include "wx/dcclient.h"
 #endif
 
 #include "wx/msw/private.h"
@@ -168,12 +170,22 @@ bool wxStaticBitmap::Create(wxWindow *parent,
     // GetBestSize will work properly now, so set the best size if needed
     SetInitialSize(size);
 
-    return true;
-}
+    // painting manually is reported not to work under Windows CE (see #10093),
+    // so don't do it there even if this probably means that alpha is not
+    // supported there -- but at least bitmaps without alpha appear correctly
+#ifndef __WXWINCE__
+    // Windows versions before XP (and even XP if the application has no
+    // manifest and so the old comctl32.dll is used) don't draw correctly the
+    // images with alpha channel so we need to draw them ourselves and it's
+    // easier to just always do it rather than check if we have an image with
+    // alpha or not
+    if ( wxTheApp->GetComCtl32Version() < 600 )
+    {
+        Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBitmap::DoPaintManually));
+    }
+#endif // !__WXWINCE__
 
-wxBorder wxStaticBitmap::GetDefaultBorder() const
-{
-    return wxBORDER_NONE;
+    return true;
 }
 
 WXDWORD wxStaticBitmap::MSWGetStyle(long style, WXDWORD *exstyle) const
@@ -245,6 +257,32 @@ wxSize wxStaticBitmap::DoGetBestSize() const
     return wxSize(16, 16);
 }
 
+#ifndef __WXWINCE__
+
+void wxStaticBitmap::DoPaintManually(wxPaintEvent& WXUNUSED(event))
+{
+    wxPaintDC dc(this);
+
+    const wxSize size(GetSize());
+    const wxBitmap bmp(GetBitmap());
+
+    // Clear the background: notice that we're supposed to be transparent, so
+    // use the parent background colour if we don't have our own instead of
+    // falling back to the default
+    const wxWindow *win = UseBgCol() ? this : GetParent();
+    dc.SetBrush(win->GetBackgroundColour());
+    dc.SetPen(*wxTRANSPARENT_PEN);
+    dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
+
+    // Draw the image in the middle
+    dc.DrawBitmap(bmp,
+                  (size.GetWidth() - bmp.GetWidth()) / 2,
+                  (size.GetHeight() - bmp.GetHeight()) / 2,
+                  true /* use mask */);
+}
+
+#endif // !__WXWINCE__
+
 void wxStaticBitmap::SetImage( const wxGDIImage* image )
 {
     wxGDIImage* convertedImage = ConvertImage( *image );