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don't erase the background of wxHtmlWindow unconditionally

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31875 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-02-09 18:33:00 +00:00
parent f68ca36e0d
commit a03ae1721d
1 changed files with 9 additions and 2 deletions
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11
src/html/htmlwin.cpp
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@ -867,9 +867,16 @@ void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
if ( !m_backBuffer )
m_backBuffer = new wxBitmap(sz.x, sz.y);
dcm.SelectObject(*m_backBuffer);
dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
dcm.Clear();
PrepareDC(dcm);
// preserve the existing background, otherwise we'd erase anything the user
// code had drawn in its EVT_ERASE_BACKGROUND handler when we do the Blit
// back below
dcm.Blit(0, rect.GetTop(),
sz.x, rect.GetBottom() - rect.GetTop() + 1,
&dc,
0, rect.GetTop());
dcm.SetMapMode(wxMM_TEXT);
dcm.SetBackgroundMode(wxTRANSPARENT);