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Added wxRegion version of wxWindowDC::SetClippingRegion

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1098 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
1998-12-02 20:02:01 +00:00
parent f66b7050e0
commit a724d7892d
12 changed files with 91 additions and 13 deletions
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28
src/motif/dcclient.cpp
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@@ -2045,6 +2045,34 @@ void wxWindowDC::SetClippingRegion( long x, long y, long width, long height )
}
};
void wxWindowDC::SetClippingRegion( const wxRegion& region )
{
wxRect box = region.GetBox();
wxDC::SetClippingRegion( box.x, box.y, box.width, box.height );
if (m_userRegion)
XDestroyRegion ((Region) m_userRegion);
m_userRegion = (WXRegion) XCreateRegion ();
XUnionRegion((Region) m_userRegion, (Region) region.GetXRegion(), (Region) m_userRegion);
SetDCClipping ();
// Needs to work differently for Pixmap: without this,
// there's a nasty (Display*) m_display bug. 8/12/94
if (m_window && m_window->GetBackingPixmap())
{
XRectangle rects[1];
rects[0].x = XLOG2DEV_2(box.x);
rects[0].y = YLOG2DEV_2(box.y);
rects[0].width = XLOG2DEVREL(box.width);
rects[0].height = YLOG2DEVREL(box.height);
XSetClipRectangles((Display*) m_display, (GC) m_gcBacking, 0, 0, rects, 1, Unsorted);
}
};
void wxWindowDC::DestroyClippingRegion(void)
{
wxDC::DestroyClippingRegion();