// the event handler executed when the window background must be painted
void wxWindow::OnErase(wxEraseEvent& event)
{
if ( !m_renderer )
{
event.Skip();
return;
}
DoDrawBackground(*event.GetDC());
#if wxUSE_SCROLLBAR
// if we have both scrollbars, we also have a square in the corner between
// them which we must paint
if ( m_scrollbarVert && m_scrollbarHorz )
{
wxSize size = GetSize();
wxRect rectClient = GetClientRect(),
rectBorder = m_renderer->GetBorderDimensions(GetBorder());
wxRect rectCorner;
rectCorner.x = rectClient.GetRight() + 1;
rectCorner.y = rectClient.GetBottom() + 1;
rectCorner.SetRight(size.x - rectBorder.width);
rectCorner.SetBottom(size.y - rectBorder.height);
if ( GetUpdateRegion().Contains(rectCorner) )
{
m_renderer->DrawScrollCorner(*event.GetDC(), rectCorner);
}
}
#endif // wxUSE_SCROLLBAR
}
bool wxNotebook::MSWPrintChild(WXHDC hDC, wxWindow *child)
{
// solid background colour overrides themed background drawing
if ( !UseBgCol() && DoDrawBackground(hDC, child) )
return true;
// If we're using a solid colour (for example if we've switched off
// theming for this notebook), paint it
if (UseBgCol())
{
wxRect r = GetPageSize();
if ( r.IsEmpty() )
return false;
RECT rc;
wxCopyRectToRECT(r, rc);
// map rect to the coords of the window we're drawing in
if ( child )
::MapWindowPoints(GetHwnd(), GetHwndOf(child), (POINT *)&rc, 2);
wxBrush brush(GetBackgroundColour());
HBRUSH hbr = GetHbrushOf(brush);
::FillRect((HDC) hDC, &rc, hbr);
return true;
}
return wxNotebookBase::MSWPrintChild(hDC, child);
}
WXHBRUSH wxNotebook::QueryBgBitmap()
{
wxRect r = GetPageSize();
if ( r.IsEmpty() )
return 0;
wxUxThemeHandle theme(this, L"TAB");
if ( !theme )
return 0;
RECT rc;
wxCopyRectToRECT(r, rc);
WindowHDC hDC(GetHwnd());
wxUxThemeEngine::Get()->GetThemeBackgroundExtent
(
theme,
(HDC) hDC,
9 /* TABP_PANE */,
0,
&rc,
&rc
);
MemoryHDC hDCMem(hDC);
CompatibleBitmap hBmp(hDC, rc.right, rc.bottom);
SelectInHDC selectBmp(hDCMem, hBmp);
if ( !DoDrawBackground((WXHDC)(HDC)hDCMem) )
return 0;
return (WXHBRUSH)::CreatePatternBrush(hBmp);
}
WXHBRUSH wxNotebook::QueryBgBitmap()
{
wxRect r = GetPageSize();
if ( r.IsEmpty() )
return 0;
WindowHDC hDC(GetHwnd());
MemoryHDC hDCMem(hDC);
CompatibleBitmap hBmp(hDC, r.x + r.width, r.y + r.height);
SelectInHDC selectBmp(hDCMem, hBmp);
if ( !DoDrawBackground((WXHDC)(HDC)hDCMem) )
return 0;
return (WXHBRUSH)::CreatePatternBrush(hBmp);
}
