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app_server: apply transform to CopyBits

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* Apply affine transforms to source and target rects of
  BView::CopyBits(). For now, only if transform is a dilation.
This commit is contained in:
Julian Harnath 2015-11-09 20:03:32 +01:00
parent 4bd6f322bb
commit 1cde68c5a2
1 changed files with 11 additions and 0 deletions
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11
src/servers/app/View.cpp
View File

@ -823,6 +823,17 @@ View::CopyBits(IntRect src, IntRect dst, BRegion& windowContentClipping)
if (!fVisible || !fWindow) if (!fVisible || !fWindow)
return; return;
// TODO: figure out what to do when we have a transform which is not
// a dilation
BAffineTransform transform = CurrentState()->CombinedTransform();
if (!transform.IsIdentity() && transform.IsDilation()) {
BPoint points[4] = { src.LeftTop(), src.RightBottom(),
dst.LeftTop(), dst.RightBottom() };
transform.Apply(&points[0], 4);
src.Set(points[0].x, points[0].y, points[1].x, points[1].y);
dst.Set(points[2].x, points[2].y, points[3].x, points[3].y);
}
// TODO: confirm that in R5 this call is affected by origin and scale // TODO: confirm that in R5 this call is affected by origin and scale
// blitting version // blitting version