Fix wxBitmapButton initial best size determination in wxMSW.

[wxWidgets.git] / src / msw / statbmp.cpp

diff --git a/src/msw/statbmp.cpp b/src/msw/statbmp.cpp
index 537c193d847663f98ec2b54b57b339194baaff67..fbaf004ad1f5b429abc0ba5092dd1ab4b719bf7c 100644 (file)
--- 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"
@@ -117,7 +119,7 @@ static wxGDIImage* ConvertImage( const wxGDIImage& bitmap )
     if( !isIcon )
     {
         wxASSERT_MSG( wxDynamicCast(&bitmap, wxBitmap),
-                      _T("not an icon and not a bitmap?") );
+                      wxT("not an icon and not a bitmap?") );
 
         const wxBitmap& bmp = (const wxBitmap&)bitmap;
         wxMask *mask = bmp.GetMask();
@@ -156,7 +158,7 @@ bool wxStaticBitmap::Create(wxWindow *parent,
     m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
 
     // create the native control
-    if ( !MSWCreateControl(_T("STATIC"), wxEmptyString, pos, size) )
+    if ( !MSWCreateControl(wxT("STATIC"), wxEmptyString, pos, size) )
     {
         // control creation failed
         return false;
@@ -168,6 +170,21 @@ bool wxStaticBitmap::Create(wxWindow *parent,
     // GetBestSize will work properly now, so set the best size if needed
     SetInitialSize(size);
 
+    // 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__
+
     return true;
 }
 
@@ -194,10 +211,10 @@ bool wxStaticBitmap::ImageIsOk() const
 
 wxIcon wxStaticBitmap::GetIcon() const
 {
-    wxCHECK_MSG( m_image, wxIcon(), _T("no image in wxStaticBitmap") );
+    wxCHECK_MSG( m_image, wxIcon(), wxT("no image in wxStaticBitmap") );
 
     // we can't ask for an icon if all we have is a bitmap
-    wxCHECK_MSG( m_isIcon, wxIcon(), _T("no icon in this wxStaticBitmap") );
+    wxCHECK_MSG( m_isIcon, wxIcon(), wxT("no icon in this wxStaticBitmap") );
 
     return *(wxIcon *)m_image;
 }
@@ -214,7 +231,7 @@ wxBitmap wxStaticBitmap::GetBitmap() const
     }
     else // we have a bitmap
     {
-        wxCHECK_MSG( m_image, wxBitmap(), _T("no image in wxStaticBitmap") );
+        wxCHECK_MSG( m_image, wxBitmap(), wxT("no image in wxStaticBitmap") );
 
         return *(wxBitmap *)m_image;
     }
@@ -222,9 +239,7 @@ wxBitmap wxStaticBitmap::GetBitmap() const
 
 void wxStaticBitmap::Free()
 {
-    delete m_image;
-
-    m_image = NULL;
+    wxDELETE(m_image);
 }
 
 wxSize wxStaticBitmap::DoGetBestSize() const
@@ -240,6 +255,32 @@ 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 );