diff options
Diffstat (limited to 'gui/groupview/GroupView.cpp')
| -rw-r--r-- | gui/groupview/GroupView.cpp | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/gui/groupview/GroupView.cpp b/gui/groupview/GroupView.cpp index 69a06fd3..6f6f0f8e 100644 --- a/gui/groupview/GroupView.cpp +++ b/gui/groupview/GroupView.cpp @@ -8,6 +8,7 @@ #include <QPersistentModelIndex> #include <QDrag> #include <QMimeData> +#include <QCache> #include <QScrollBar> #include "Group.h" @@ -68,6 +69,7 @@ void GroupView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int e void GroupView::updateGeometries() { + geometryCache.clear(); int previousScroll = verticalScrollBar()->value(); QMap<QString, Group *> cats; @@ -658,17 +660,25 @@ QRect GroupView::geometryRect(const QModelIndex &index) const return QRect(); } - const Group *cat = category(index); - QPair<int, int> pos = categoryInternalPosition(index); - int x = pos.first; - // int y = pos.second; - - QRect out; - out.setTop(cat->verticalPosition() + cat->headerHeight() + 5 + categoryInternalRowTop(index)); - out.setLeft(m_spacing + x * (itemWidth() + m_spacing)); - out.setSize(itemDelegate()->sizeHint(viewOptions(), index)); + int row = index.row(); + if(geometryCache.contains(row)) + { + return *geometryCache[row]; + } + else + { + const Group *cat = category(index); + QPair<int, int> pos = categoryInternalPosition(index); + int x = pos.first; + // int y = pos.second; - return out; + QRect out; + out.setTop(cat->verticalPosition() + cat->headerHeight() + 5 + categoryInternalRowTop(index)); + out.setLeft(m_spacing + x * (itemWidth() + m_spacing)); + out.setSize(itemDelegate()->sizeHint(viewOptions(), index)); + const_cast<QCache<int, QRect>&>(geometryCache).insert(row, new QRect(out)); + return out; + } } /* |