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get_workspace_windows() new returns true if there was a change in window hierarchy. Improved performance a bit by avoiding an invalidate call.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12072 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Adi Oanca 2005-03-27 10:51:28 +00:00
parent aa498a5f03
commit 867b420067
1 changed files with 16 additions and 4 deletions
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20
src/servers/app/RootLayer.cpp
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@ -934,10 +934,12 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
else
invalidate = ActiveWorkspace()->MoveToFront(target);
if (invalidate)
// Performance: MoveToFront() often returns true although it shouldn't do that.
// This is because internaly it calls Workspace::ShowWinBorder() and this imposes
// a small penalty, but we can live with that; it make Workspace code a lot more clear/clean.
if (invalidate && get_workspace_windows())
{
get_workspace_windows();
// TODO: should it be improved by calling with region of hidden windows
// plus the full regions of new windows???
invalidate_layer(this, fFull);
@ -1731,12 +1733,13 @@ void RootLayer::hide_winBorder(WinBorder *winBorder)
}
}
void RootLayer::get_workspace_windows()
bool RootLayer::get_workspace_windows()
{
int32 bufferSize = fWinBorderListLength;
int32 exCount = fWinBorderCount;
bool present;
bool newMemory = false;
bool aChange = false;
memcpy(fWinBorderList2, fWinBorderList, fWinBorderCount * sizeof(WinBorder*));
@ -1753,9 +1756,17 @@ void RootLayer::get_workspace_windows()
fWinBorderIndex = 0;
// to determine if there was a change in window hierarchy
if (exCount != fWinBorderCount)
aChange = true;
// clear visible and full visible regions for windows no more visible.
for (int32 i = 0; i < exCount; i++)
{
// to determine if there was a change in window hierarchy
if (!aChange && fWinBorderList2[i] != fWinBorderList[i])
aChange = true;
present = false;
for (int32 j = 0; j < fWinBorderCount; j++)
@ -1775,6 +1786,7 @@ void RootLayer::get_workspace_windows()
// printf("Adi: %ld get_workspace_windows(%p)\n", i, fWinBorderList[i]);
//}
//printf("Adi: get_workspace_windows DONE\n");
return aChange;
}
void RootLayer::draw_window_tab(WinBorder *exFocus, WinBorder *focus)