diff --git a/include/wx/msw/statbmp.h b/include/wx/msw/statbmp.h index 883b52ae37..1ac02c7be8 100644 --- a/include/wx/msw/statbmp.h +++ b/include/wx/msw/statbmp.h @@ -68,6 +68,12 @@ protected: void SetImage(const wxGDIImage* image); void SetImageNoCopy( wxGDIImage* image ); +#if wxABI_VERSION >= 20808 + // draw the bitmap ourselves here if the OS can't do it correctly (if it + // can we leave it to it) + void DoPaintManually(wxPaintEvent& event); +#endif + // we can have either an icon or a bitmap bool m_isIcon; wxGDIImage *m_image; diff --git a/src/msw/statbmp.cpp b/src/msw/statbmp.cpp index cd03008f89..3a7e5f80b4 100644 --- a/src/msw/statbmp.cpp +++ b/src/msw/statbmp.cpp @@ -31,6 +31,7 @@ #ifndef WX_PRECOMP #include "wx/window.h" #include "wx/icon.h" + #include "wx/dcclient.h" #endif #include "wx/msw/private.h" @@ -168,6 +169,14 @@ bool wxStaticBitmap::Create(wxWindow *parent, // GetBestSize will work properly now, so set the best size if needed SetInitialSize(size); + // Win9x and 2000 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 ( wxGetWinVersion() <= wxWinVersion_2000 ) + { + Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBitmap::DoPaintManually)); + } + return true; } @@ -245,6 +254,25 @@ wxSize wxStaticBitmap::DoGetBestSize() const return wxSize(16, 16); } +void wxStaticBitmap::DoPaintManually(wxPaintEvent& WXUNUSED(event)) +{ + wxPaintDC dc(this); + + const wxSize size(GetSize()); + const wxBitmap bmp(GetBitmap()); + + // Clear the background + dc.SetBrush(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 */); +} + void wxStaticBitmap::SetImage( const wxGDIImage* image ) { wxGDIImage* convertedImage = ConvertImage( *image );