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fixed extraneous scrolling when scrollbars are added/removed (patch 788026; bug 746618)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@22834 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2003-08-13 23:55:52 +00:00
parent ccecc6542b
commit 115cacce0c
1 changed files with 17 additions and 1 deletions
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18
src/generic/scrlwing.cpp
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@@ -603,6 +603,20 @@ int wxScrollHelper::CalcScrollInc(wxScrollWinEvent& event)
// Adjust the scrollbars - new version.
void wxScrollHelper::AdjustScrollbars()
{
static bool s_isInside = false;
if ( s_isInside )
{
// don't reenter AdjustScrollbars() while another call to
// AdjustScrollbars() is in progress because this may lead to calling
// ScrollWindow() twice and this can really happen under MSW if
// SetScrollbar() call below adds or removes the scrollbar which
// changes the window size and hence results in another
// AdjustScrollbars() call
return;
}
s_isInside = true;
#ifdef __WXMAC__
m_targetWindow->MacUpdateImmediately();
#endif
@@ -678,7 +692,7 @@ void wxScrollHelper::AdjustScrollbars()
oldh = h;
GetTargetSize( &w, &h );
} while ( w != oldw && h != oldh );
} while ( w != oldw || h != oldh );
#ifdef __WXMOTIF__
// Sorry, some Motif-specific code to implement a backing pixmap
@@ -734,6 +748,8 @@ void wxScrollHelper::AdjustScrollbars()
#ifdef __WXMAC__
m_targetWindow->MacUpdateImmediately();
#endif
s_isInside = false;
}
void wxScrollHelper::DoPrepareDC(wxDC& dc)