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authorMichael Stahl <mstahl@redhat.com>2013-06-24 19:50:30 +0200
committerCaolán McNamara <caolanm@redhat.com>2013-06-27 19:12:39 +0000
commit904de3293692949eba25229b27a6e1afaabc183b (patch)
tree8bf7835d674e97f3caede093fc19f57db3d91013 /svx/source/svdraw
parent435be554c5025f2309c016170d5225ac086c727b (diff)
fdo#58029: replace quadratic child window loop with linear
... which should speed things up without introducing problems. (Window::GetChild(n) is inefficient because the children are a linked list) Change-Id: I343d51a6866c5014cbca4c256b0c15f938958c39 (cherry picked from commit 38dcfadda85058a0ee87292c8943aec82e34b81e) Reviewed-on: https://gerrit.libreoffice.org/4491 Reviewed-by: Thorsten Behrens <tbehrens@suse.com> Tested-by: Thorsten Behrens <tbehrens@suse.com> Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
Diffstat (limited to 'svx/source/svdraw')
-rw-r--r--svx/source/svdraw/sdrpaintwindow.cxx27
1 files changed, 27 insertions, 0 deletions
diff --git a/svx/source/svdraw/sdrpaintwindow.cxx b/svx/source/svdraw/sdrpaintwindow.cxx
index cf9548dbe02d..f5cedd8b8212 100644
--- a/svx/source/svdraw/sdrpaintwindow.cxx
+++ b/svx/source/svdraw/sdrpaintwindow.cxx
@@ -23,6 +23,33 @@
#include <vcl/gdimtf.hxx>
#include <vcl/svapp.hxx>
+
+void PaintTransparentChildren(Window & rWindow, Rectangle const& rPixelRect)
+{
+ if (rWindow.IsChildTransparentModeEnabled())
+ {
+ Window * pCandidate = rWindow.GetWindow( WINDOW_FIRSTCHILD );
+ while (pCandidate)
+ {
+ if (pCandidate->IsPaintTransparent())
+ {
+ const Rectangle aCandidatePosSizePixel(
+ pCandidate->GetPosPixel(),
+ pCandidate->GetSizePixel());
+
+ if (aCandidatePosSizePixel.IsOver(rPixelRect))
+ {
+ pCandidate->Invalidate(
+ INVALIDATE_NOTRANSPARENT|INVALIDATE_CHILDREN );
+ // important: actually paint the child here!
+ pCandidate->Update();
+ }
+ }
+ pCandidate = pCandidate->GetWindow( WINDOW_NEXT );
+ }
+ }
+}
+
////////////////////////////////////////////////////////////////////////////////////////////////////
SdrPreRenderDevice::SdrPreRenderDevice(OutputDevice& rOriginal)