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-rw-r--r--src/gui/itemviews/qtreeview.cpp234
-rw-r--r--src/gui/itemviews/qtreeview_p.h7
2 files changed, 28 insertions, 213 deletions
diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index 4135ba0..ada3936 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -1997,6 +1997,24 @@ QModelIndex QTreeView::indexBelow(const QModelIndex &index) const
void QTreeView::doItemsLayout()
{
Q_D(QTreeView);
+ if (d->hasRemovedItems) {
+ //clean the QSet that may contains old (and this invalid) indexes
+ d->hasRemovedItems = false;
+ QSet<QPersistentModelIndex>::iterator it = d->expandedIndexes.begin();
+ while (it != d->expandedIndexes.constEnd()) {
+ if (!it->isValid())
+ it = d->expandedIndexes.erase(it);
+ else
+ ++it;
+ }
+ it = d->hiddenIndexes.begin();
+ while (it != d->hiddenIndexes.constEnd()) {
+ if (!it->isValid())
+ it = d->hiddenIndexes.erase(it);
+ else
+ ++it;
+ }
+ }
d->viewItems.clear(); // prepare for new layout
QModelIndex parent = d->root;
if (d->model->hasChildren(parent)) {
@@ -2406,24 +2424,6 @@ void QTreeView::reexpand()
}
/*!
- \internal
- This function assume that left is a (grand-)child of the parent of left.
-*/
-static bool treeViewItemLessThanInInsert(const QTreeViewItem &left, const QTreeViewItem &right)
-{
- if (left.level != right.level) {
- Q_ASSERT(left.level > right.level);
- QModelIndex leftParent = left.index.parent();
- QModelIndex rightParent = right.index.parent();
- // computer parent, don't get
- while (leftParent.isValid() && leftParent.parent() != rightParent)
- leftParent = leftParent.parent();
- return (leftParent.row() < right.index.row());
- }
- return (left.index.row() < right.index.row());
-}
-
-/*!
Informs the view that the rows from the \a start row to the \a end row
inclusive have been inserted into the \a parent model item.
*/
@@ -2452,83 +2452,6 @@ void QTreeView::rowsInserted(const QModelIndex &parent, int start, int end)
const int parentItem = d->viewIndex(parent);
if (((parentItem != -1) && d->viewItems.at(parentItem).expanded && updatesEnabled())
|| (parent == d->root)) {
- const uint childLevel = (parentItem == -1)
- ? uint(0) : d->viewItems.at(parentItem).level + 1;
- const int firstChildItem = parentItem + 1;
- const int lastChildItem = firstChildItem + ((parentItem == -1)
- ? d->viewItems.count()
- : d->viewItems.at(parentItem).total) - 1;
-
- if (parentRowCount == end + 1 && start > 0) {
- //need to Update hasMoreSiblings
- int previousRow = start - 1;
- QModelIndex previousSibilingModelIndex = d->model->index(previousRow, 0, parent);
- bool isHidden = d->isRowHidden(previousSibilingModelIndex);
- while (isHidden && previousRow > 0) {
- previousRow--;
- previousSibilingModelIndex = d->model->index(previousRow, 0, parent);
- isHidden = d->isRowHidden(previousSibilingModelIndex);
- }
- if (!isHidden) {
- const int previousSibilling = d->viewIndex(previousSibilingModelIndex);
- if(previousSibilling != -1)
- d->viewItems[previousSibilling].hasMoreSiblings = true;
- }
- }
-
- QVector<QTreeViewItem> insertedItems(delta);
- for (int i = 0; i < delta; ++i) {
- QTreeViewItem &item = insertedItems[i];
- item.index = d->model->index(i + start, 0, parent);
- item.parentItem = parentItem;
- item.level = childLevel;
- item.hasChildren = d->hasVisibleChildren(item.index);
- item.hasMoreSiblings = !((i == delta - 1) && (parentRowCount == end +1));
- }
- if (d->viewItems.isEmpty())
- d->defaultItemHeight = indexRowSizeHint(insertedItems[0].index);
-
- int insertPos;
- if (lastChildItem < firstChildItem) { // no children
- insertPos = firstChildItem;
- } else {
- // do a binary search to figure out where to insert
- QVector<QTreeViewItem>::iterator it;
- it = qLowerBound(d->viewItems.begin() + firstChildItem,
- d->viewItems.begin() + lastChildItem + 1,
- insertedItems.at(0), treeViewItemLessThanInInsert);
- insertPos = it - d->viewItems.begin();
-
- // update stale model indexes of siblings
- for (int item = insertPos; item <= lastChildItem; ) {
- Q_ASSERT(d->viewItems.at(item).level == childLevel);
- const QModelIndex modelIndex = d->viewItems.at(item).index;
- //Q_ASSERT(modelIndex.parent() == parent);
- d->viewItems[item].index = d->model->index(
- modelIndex.row() + delta, modelIndex.column(), parent);
-
- if (!d->viewItems[item].index.isValid()) {
- // Something really bad is happening, a bad model is
- // often the cause. We can't optimize in this case :(
- qWarning() << "QTreeView::rowsInserted internal representation of the model has been corrupted, resetting.";
- doItemsLayout();
- return;
- }
-
- item += d->viewItems.at(item).total + 1;
- }
- }
-
- d->insertViewItems(insertPos, delta, insertedItems.at(0));
- if (delta > 1) {
- qCopy(insertedItems.begin() + 1, insertedItems.end(),
- d->viewItems.begin() + insertPos + 1);
- }
-
- if (parentItem != -1)
- d->viewItems[parentItem].hasChildren = true;
- d->updateChildCount(parentItem, delta);
-
d->doDelayedItemsLayout();
} else if ((parentItem != -1) && d->viewItems.at(parentItem).expanded) {
d->doDelayedItemsLayout();
@@ -2547,8 +2470,8 @@ void QTreeView::rowsInserted(const QModelIndex &parent, int start, int end)
void QTreeView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
{
Q_D(QTreeView);
- d->rowsRemoved(parent, start, end, false);
QAbstractItemView::rowsAboutToBeRemoved(parent, start, end);
+ d->viewItems.clear();
}
/*!
@@ -2560,7 +2483,10 @@ void QTreeView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int e
void QTreeView::rowsRemoved(const QModelIndex &parent, int start, int end)
{
Q_D(QTreeView);
- d->rowsRemoved(parent, start, end, true);
+ d->viewItems.clear();
+ d->doDelayedItemsLayout();
+ d->hasRemovedItems = true;
+ d->_q_rowsRemoved(parent, start, end);
}
/*!
@@ -3398,7 +3324,7 @@ int QTreeViewPrivate::viewIndex(const QModelIndex &_index) const
const int totalCount = viewItems.count();
const QModelIndex index = _index.sibling(_index.row(), 0);
const int row = index.row();
- const quint64 internalId = index.internalId();
+ const qint64 internalId = index.internalId();
// We start nearest to the lastViewedItem
int localCount = qMin(lastViewedItem - 1, totalCount - lastViewedItem);
@@ -3751,118 +3677,6 @@ bool QTreeViewPrivate::hasVisibleChildren(const QModelIndex& parent) const
return false;
}
-void QTreeViewPrivate::rowsRemoved(const QModelIndex &parent,
- int start, int end, bool after)
-{
- // if we are going to do a complete relayout anyway, there is no need to update
- if (delayedPendingLayout) {
- _q_rowsRemoved(parent, start, end);
- return;
- }
-
- const int parentItem = viewIndex(parent);
- if ((parentItem != -1) || (parent == root)) {
-
- const uint childLevel = (parentItem == -1)
- ? uint(0) : viewItems.at(parentItem).level + 1;
- Q_UNUSED(childLevel); // unused in release mode, used in assert below
-
- const int firstChildItem = parentItem + 1;
- int lastChildItem = firstChildItem + ((parentItem == -1)
- ? viewItems.count()
- : viewItems.at(parentItem).total) - 1;
-
- const int delta = end - start + 1;
-
- int previousSibiling = -1;
- int removedCount = 0;
- for (int item = firstChildItem; item <= lastChildItem; ) {
- Q_ASSERT(viewItems.at(item).level == childLevel);
- const QModelIndex modelIndex = viewItems.at(item).index;
- //Q_ASSERT(modelIndex.parent() == parent);
- const int count = viewItems.at(item).total + 1;
- if (modelIndex.row() < start) {
- previousSibiling = item;
- // not affected by the removal
- item += count;
- } else if (modelIndex.row() <= end) {
- // removed
- removeViewItems(item, count);
- removedCount += count;
- lastChildItem -= count;
- } else {
- if (after) {
- // moved; update the model index
- viewItems[item].index = model->index(
- modelIndex.row() - delta, modelIndex.column(), parent);
- }
- item += count;
- }
- }
-
- if (previousSibiling != -1 && after && model->rowCount(parent) == start)
- viewItems[previousSibiling].hasMoreSiblings = false;
-
- if (parentItem != -1) {
- if (viewItems.at(parentItem).expanded) {
- updateChildCount(parentItem, -removedCount);
- if (viewItems.at(parentItem).total == 0)
- viewItems[parentItem].hasChildren = false; //every children have been removed;
- } else if (viewItems[parentItem].hasChildren && !hasVisibleChildren(parent)) {
- viewItems[parentItem].hasChildren = false;
- }
- }
- if (after) {
- doDelayedItemsLayout();
- } else {
- //we have removed items: we should at least update the scroll bar values.
- // They are used to determine the item geometry.
- updateScrollBars();
- }
- } else {
- // If an ancestor of root is removed then relayout
- QModelIndex idx = root;
- while (idx.isValid()) {
- idx = idx.parent();
- if (idx == parent) {
- doDelayedItemsLayout();
- break;
- }
- }
- }
- _q_rowsRemoved(parent, start, end);
-
- QSet<QPersistentModelIndex>::iterator it = expandedIndexes.begin();
- while (it != expandedIndexes.constEnd()) {
- if (!it->isValid())
- it = expandedIndexes.erase(it);
- else
- ++it;
- }
- it = hiddenIndexes.begin();
- while (it != hiddenIndexes.constEnd()) {
- if (!it->isValid())
- it = hiddenIndexes.erase(it);
- else
- ++it;
- }
-}
-
-void QTreeViewPrivate::updateChildCount(const int parentItem, const int delta)
-{
- if ((parentItem != -1) && delta) {
- int level = viewItems.at(parentItem).level;
- int item = parentItem;
- do {
- Q_ASSERT(item >= 0);
- for ( ; int(viewItems.at(item).level) != level; --item) ;
- viewItems[item].total += delta;
- --level;
- } while (level >= 0);
- }
-}
-
-
void QTreeViewPrivate::_q_sortIndicatorChanged(int column, Qt::SortOrder order)
{
model->sort(column, order);
diff --git a/src/gui/itemviews/qtreeview_p.h b/src/gui/itemviews/qtreeview_p.h
index 48997b7..261af31 100644
--- a/src/gui/itemviews/qtreeview_p.h
+++ b/src/gui/itemviews/qtreeview_p.h
@@ -91,7 +91,7 @@ public:
expandsOnDoubleClick(true),
allColumnsShowFocus(false), current(0), spanning(false),
animationsEnabled(false), columnResizeTimerID(0),
- autoExpandDelay(-1), hoverBranch(-1), geometryRecursionBlock(false) {}
+ autoExpandDelay(-1), hoverBranch(-1), geometryRecursionBlock(false), hasRemovedItems(false) {}
~QTreeViewPrivate() {}
void initialize();
@@ -165,8 +165,6 @@ public:
QPair<int,int> startAndEndColumns(const QRect &rect) const;
void updateChildCount(const int parentItem, const int delta);
- void rowsRemoved(const QModelIndex &parent,
- int start, int end, bool before);
void paintAlternatingRowColors(QPainter *painter, QStyleOptionViewItemV4 *option, int y, int bottom) const;
@@ -242,6 +240,9 @@ public:
// used for blocking recursion when calling setViewportMargins from updateGeometries
bool geometryRecursionBlock;
+
+ // If we should clean the set
+ bool hasRemovedItems;
};
QT_END_NAMESPACE
generated by cgit v0.12 at 2024-09-20 15:37:05 (GMT)