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Slightly simplify proposed drop index determination

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No real changes, just reorganize the code in a way that should hopefully
be more clear to understand.
This commit is contained in:
Vadim Zeitlin 2020-05-03 21:02:06 +02:00
parent 60e0e9a8fc
commit 3dd91d24c2
1 changed files with 16 additions and 6 deletions
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22
src/generic/datavgen.cpp
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@ -2233,15 +2233,25 @@ wxDataViewMainWindow::DropItemInfo wxDataViewMainWindow::GetDropItemInfo(const w
if (m_owner->GetModel()->IsContainer(ascendNode->GetItem()))
{
// Item can be inserted
dropItemInfo.m_item = ascendNode->GetItem();
int itemPosition = ascendNode->FindChildByItem(prevAscendNode->GetItem());
dropItemInfo.m_proposedDropIndex = itemPosition == wxNOT_FOUND ? 0 : itemPosition + 1;
dropItemInfo.m_item = ascendNode->GetItem();
if ( itemPosition == wxNOT_FOUND )
itemPosition = 0;
else
itemPosition++;
// We must break the loop if the applied node is expanded (opened)
// and the proposed drop position is not the last in this node
if (ascendNode->IsOpen() && dropItemInfo.m_proposedDropIndex != static_cast<int>(ascendNode->GetChildNodes().size()))
break;
dropItemInfo.m_proposedDropIndex = itemPosition;
// We must break the loop if the applied node is expanded
// (opened) and the proposed drop position is not the last
// in this node.
if ( ascendNode->IsOpen() )
{
const size_t lastPos = ascendNode->GetChildNodes().size();
if ( static_cast<size_t>(itemPosition) != lastPos )
break;
}
int indent = GetOwner()->GetIndent()*level + expanderWidth;