cheng/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

erase background using the window background colour when using wxBG_STYLE_ERASE/SYSTEM

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61125 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2009-06-18 23:00:49 +00:00
parent c22ace4dff
commit 6a5594e00d
1 changed files with 35 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
src/osx/window_osx.cpp
View File

@ -1755,27 +1755,44 @@ bool wxWindowMac::MacDoRedraw( long time )
// first send an erase event to the entire update area // first send an erase event to the entire update area
const wxBackgroundStyle bgStyle = GetBackgroundStyle(); const wxBackgroundStyle bgStyle = GetBackgroundStyle();
if ( bgStyle == wxBG_STYLE_ERASE ) switch ( bgStyle )
{ {
// for the toplevel window this really is the entire area case wxBG_STYLE_ERASE:
// for all the others only their client area, otherwise they case wxBG_STYLE_SYSTEM:
// might be drawing with full alpha and eg put blue into
// the grow-box area of a scrolled window (scroll sample)
wxWindowDC dc(this);
if ( IsTopLevel() )
dc.SetDeviceClippingRegion(formerUpdateRgn);
else
dc.SetDeviceClippingRegion(clientUpdateRgn);
wxEraseEvent eevent( GetId(), &dc );
eevent.SetEventObject( this );
if ( !ProcessWindowEvent( eevent ) )
{
if ( bgStyle == wxBG_STYLE_SYSTEM && MacGetTopLevelWindow() )
{ {
dc.Clear(); // for the toplevel window this really is the entire area for
// all the others only their client area, otherwise they might
// be drawing with full alpha and eg put blue into the grow-box
// area of a scrolled window (scroll sample)
wxWindowDC dc(this);
if ( IsTopLevel() )
dc.SetDeviceClippingRegion(formerUpdateRgn);
else
dc.SetDeviceClippingRegion(clientUpdateRgn);
if ( bgStyle == wxBG_STYLE_ERASE )
{
wxEraseEvent eevent( GetId(), &dc );
eevent.SetEventObject( this );
if ( ProcessWindowEvent( eevent ) )
break;
}
if ( MacGetTopLevelWindow() )
{
dc.SetBackground(GetBackgroundColour());
dc.Clear();
}
} }
} break;
case wxBG_STYLE_PAINT:
// nothing to do, user-defined EVT_PAINT handler will overwrite the
// entire window client area
break;
default:
wxFAIL_MSG( "unsupported background style" );
} }
MacPaintGrowBox(); MacPaintGrowBox();