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-rw-r--r--src/gui/itemviews/qlistview.cpp14
-rw-r--r--src/gui/itemviews/qtableview.cpp38
-rw-r--r--src/gui/itemviews/qtreeview.cpp15
3 files changed, 49 insertions, 18 deletions
diff --git a/src/gui/itemviews/qlistview.cpp b/src/gui/itemviews/qlistview.cpp
index b2def39..39ca75a 100644
--- a/src/gui/itemviews/qlistview.cpp
+++ b/src/gui/itemviews/qlistview.cpp
@@ -1387,6 +1387,9 @@ void QListView::setSelection(const QRect &rect, QItemSelectionModel::SelectionFl
/*!
\reimp
+
+ Since 4.7, the returned region only contains rectangles intersecting
+ (or included in) the viewport.
*/
QRegion QListView::visualRegionForSelection(const QItemSelection &selection) const
{
@@ -1394,6 +1397,7 @@ QRegion QListView::visualRegionForSelection(const QItemSelection &selection) con
// ### NOTE: this is a potential bottleneck in non-static mode
int c = d->column;
QRegion selectionRegion;
+ const QRect &viewportRect = d->viewport->rect();
for (int i = 0; i < selection.count(); ++i) {
if (!selection.at(i).isValid())
continue;
@@ -1405,8 +1409,11 @@ QRegion QListView::visualRegionForSelection(const QItemSelection &selection) con
int t = selection.at(i).topLeft().row();
int b = selection.at(i).bottomRight().row();
if (d->viewMode == IconMode || d->isWrapping()) { // in non-static mode, we have to go through all selected items
- for (int r = t; r <= b; ++r)
- selectionRegion += QRegion(visualRect(d->model->index(r, c, parent)));
+ for (int r = t; r <= b; ++r) {
+ const QRect &rect = visualRect(d->model->index(r, c, parent));
+ if (viewportRect.intersects(rect))
+ selectionRegion += rect;
+ }
} else { // in static mode, we can optimize a bit
while (t <= b && d->isHidden(t)) ++t;
while (b >= t && d->isHidden(b)) --b;
@@ -1414,7 +1421,8 @@ QRegion QListView::visualRegionForSelection(const QItemSelection &selection) con
const QModelIndex bottom = d->model->index(b, c, parent);
QRect rect(visualRect(top).topLeft(),
visualRect(bottom).bottomRight());
- selectionRegion += QRegion(rect);
+ if (viewportRect.intersects(rect))
+ selectionRegion += rect;
}
}
diff --git a/src/gui/itemviews/qtableview.cpp b/src/gui/itemviews/qtableview.cpp
index 702a8bb..43445b4 100644
--- a/src/gui/itemviews/qtableview.cpp
+++ b/src/gui/itemviews/qtableview.cpp
@@ -1858,6 +1858,9 @@ void QTableView::setSelection(const QRect &rect, QItemSelectionModel::SelectionF
Returns the rectangle from the viewport of the items in the given
\a selection.
+
+ Since 4.7, the returned region only contains rectangles intersecting
+ (or included in) the viewport.
*/
QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) const
{
@@ -1867,6 +1870,7 @@ QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) co
return QRegion();
QRegion selectionRegion;
+ const QRect &viewportRect = d->viewport->rect();
bool verticalMoved = verticalHeader()->sectionsMoved();
bool horizontalMoved = horizontalHeader()->sectionsMoved();
@@ -1876,8 +1880,11 @@ QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) co
if (range.parent() != d->root || !range.isValid())
continue;
for (int r = range.top(); r <= range.bottom(); ++r)
- for (int c = range.left(); c <= range.right(); ++c)
- selectionRegion += QRegion(visualRect(d->model->index(r, c, d->root)));
+ for (int c = range.left(); c <= range.right(); ++c) {
+ const QRect &rangeRect = visualRect(d->model->index(r, c, d->root));
+ if (viewportRect.intersects(rangeRect))
+ selectionRegion += rangeRect;
+ }
}
} else if (horizontalMoved) {
for (int i = 0; i < selection.count(); ++i) {
@@ -1889,9 +1896,11 @@ QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) co
if (top > bottom)
qSwap<int>(top, bottom);
int height = bottom - top;
- for (int c = range.left(); c <= range.right(); ++c)
- selectionRegion += QRegion(QRect(columnViewportPosition(c), top,
- columnWidth(c), height));
+ for (int c = range.left(); c <= range.right(); ++c) {
+ const QRect rangeRect(columnViewportPosition(c), top, columnWidth(c), height);
+ if (viewportRect.intersects(rangeRect))
+ selectionRegion += rangeRect;
+ }
}
} else if (verticalMoved) {
for (int i = 0; i < selection.count(); ++i) {
@@ -1903,9 +1912,11 @@ QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) co
if (left > right)
qSwap<int>(left, right);
int width = right - left;
- for (int r = range.top(); r <= range.bottom(); ++r)
- selectionRegion += QRegion(QRect(left, rowViewportPosition(r),
- width, rowHeight(r)));
+ for (int r = range.top(); r <= range.bottom(); ++r) {
+ const QRect rangeRect(left, rowViewportPosition(r), width, rowHeight(r));
+ if (viewportRect.intersects(rangeRect))
+ selectionRegion += rangeRect;
+ }
}
} else { // nothing moved
const int gridAdjust = showGrid() ? 1 : 0;
@@ -1926,12 +1937,17 @@ QRegion QTableView::visualRegionForSelection(const QItemSelection &selection) co
rleft = columnViewportPosition(range.right());
rright = columnViewportPosition(range.left()) + columnWidth(range.left());
}
- selectionRegion += QRect(QPoint(rleft, rtop), QPoint(rright - 1 - gridAdjust, rbottom - 1 - gridAdjust));
+ const QRect rangeRect(QPoint(rleft, rtop), QPoint(rright - 1 - gridAdjust, rbottom - 1 - gridAdjust));
+ if (viewportRect.intersects(rangeRect))
+ selectionRegion += rangeRect;
if (d->hasSpans()) {
foreach (QSpanCollection::Span *s,
d->spans.spansInRect(range.left(), range.top(), range.width(), range.height())) {
- if (range.contains(s->top(), s->left(), range.parent()))
- selectionRegion += d->visualSpanRect(*s);
+ if (range.contains(s->top(), s->left(), range.parent())) {
+ const QRect &visualSpanRect = d->visualSpanRect(*s);
+ if (viewportRect.intersects(visualSpanRect))
+ selectionRegion += visualSpanRect;
+ }
}
}
}
diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index b9d51a2..2764baa 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -2280,6 +2280,9 @@ void QTreeView::setSelection(const QRect &rect, QItemSelectionModel::SelectionFl
/*!
Returns the rectangle from the viewport of the items in the given
\a selection.
+
+ Since 4.7, the returned region only contains rectangles intersecting
+ (or included in) the viewport.
*/
QRegion QTreeView::visualRegionForSelection(const QItemSelection &selection) const
{
@@ -2288,6 +2291,7 @@ QRegion QTreeView::visualRegionForSelection(const QItemSelection &selection) con
return QRegion();
QRegion selectionRegion;
+ const QRect &viewportRect = d->viewport->rect();
for (int i = 0; i < selection.count(); ++i) {
QItemSelectionRange range = selection.at(i);
if (!range.isValid())
@@ -2320,13 +2324,16 @@ QRegion QTreeView::visualRegionForSelection(const QItemSelection &selection) con
qSwap<int>(top, bottom);
int height = bottom - top + 1;
if (d->header->sectionsMoved()) {
- for (int c = range.left(); c <= range.right(); ++c)
- selectionRegion += QRegion(QRect(columnViewportPosition(c), top,
- columnWidth(c), height));
+ for (int c = range.left(); c <= range.right(); ++c) {
+ const QRect rangeRect(columnViewportPosition(c), top, columnWidth(c), height);
+ if (viewportRect.intersects(rangeRect))
+ selectionRegion += rangeRect;
+ }
} else {
QRect combined = leftRect|rightRect;
combined.setX(columnViewportPosition(isRightToLeft() ? range.right() : range.left()));
- selectionRegion += combined;
+ if (viewportRect.intersects(combined))
+ selectionRegion += combined;
}
}
return selectionRegion;
generated by cgit v0.12 at 2024-12-02 02:48:37 (GMT)