void wxDC::Clear()
{
wxCHECK_RET( Ok(), wxT("invalid dc") );
if ( m_backgroundBrush.GetStyle() == wxTRANSPARENT )
return;
wxColour clr = m_backgroundBrush.GetColour();
m_surface->Clear(clr.Red(), clr.Green(), clr.Blue(), clr.Alpha());
wxSize size(GetSize());
CalcBoundingBox(XDEV2LOG(0), YDEV2LOG(0));
CalcBoundingBox(XDEV2LOG(size.x), YDEV2LOG(size.y));
}
void wxDFBDCImpl::DoSetDeviceClippingRegion(const wxRegion& region)
{
// NB: this can be done because wxDFB only supports rectangular regions
wxRect rect = region.AsRect();
// our parameter is in physical coordinates while DoSetClippingRegion()
// takes logical ones
rect.x = XDEV2LOG(rect.x);
rect.y = YDEV2LOG(rect.y);
rect.width = XDEV2LOG(rect.width);
rect.height = YDEV2LOG(rect.height);
DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height);
}
wxCoord wxSVGFileDC::DeviceToLogicalX(wxCoord x) const
{
return XDEV2LOG(x);
}
