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Do not divide by zero when the last group is collapsed.

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This commit is contained in:
Petr Mrázek 2014-02-09 21:04:00 +01:00
parent 1f6a484cb2
commit ba401922e1
1 changed files with 9 additions and 8 deletions
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17
gui/groupview/GroupView.cpp
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@ -116,19 +116,20 @@ void GroupView::updateGeometries()
int totalHeight = 0;
// top margin
totalHeight += m_categoryMargin;
int itemScroll = 0;
for (auto category : m_groups)
{
category->m_verticalPosition = totalHeight;
totalHeight += category->totalHeight() + m_categoryMargin;
if(!itemScroll && category->totalHeight() != 0)
{
itemScroll = category->contentHeight() / category->numRows();
}
}
auto category = m_groups.last();
int itemScroll = category->contentHeight() / category->numRows();
/*
// remove the last margin (we don't want it)
totalHeight -= m_categoryMargin;
// add a margin on top...
totalHeight += m_categoryMargin;
*/
// do not divide by zero
if(itemScroll == 0)
itemScroll = 64;
totalHeight += m_bottomMargin;
verticalScrollBar()->setSingleStep ( itemScroll );
const int rowsPerPage = qMax ( viewport()->height() / itemScroll, 1 );