void ZDCCanvas_X_NonWindow::CopyFrom(ZDCState& ioState, const ZPoint& inDestLocation, ZRef<ZDCCanvas> inSourceCanvas, const ZDCState& inSourceState, const ZRect& inSourceRect) { ZRef<ZDCCanvas_X> sourceCanvasX = ZRefDynamicCast<ZDCCanvas_X>(inSourceCanvas); ZAssertStop(kDebug_X, sourceCanvasX != nil); if (!fDrawable || !sourceCanvasX->Internal_GetDrawable()) return; SetupLock theSetupLock(this); // We can (currently) only copy from one drawable to another if they're on the same display // ZAssertStop(kDebug_X, fXServer == sourceCanvasX->fXServer); ZRect destRect = inSourceRect + (ioState.fOrigin + inDestLocation - inSourceRect.TopLeft()); ZRect sourceRect = inSourceRect + inSourceState.fOrigin; ZDCRgn realClip = this->Internal_CalcClipRgn(ioState); fXServer->SetRegion(fGC, realClip.GetRegion()); ++fChangeCount_Clip; fXServer->SetFunction(fGC, GXcopy); ++fChangeCount_Mode; fXServer->CopyArea(sourceCanvasX->Internal_GetDrawable(), fDrawable, fGC, sourceRect.Left(), sourceRect.Top(), sourceRect.Width(), sourceRect.Height(), destRect.Left(), destRect.Top()); }