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QAbstractItemView: Make it easier to drop above and below items

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Before this patch a very accurate drop position below
or above an index was needed. Therefore it was not that
easy to do.

This patch increases the above/below area to be about
18% of the item (still leaving the most space for the item).

An average user will likely be 2-3x faster with dropping
below or above (while not losing much when dropping on items).

[ChangeLog][QtWidgets][ItemViews] Made it easier to
drop above and below items.

Change-Id: I47f0f80c76878c17ebf3f93d0a0cc82755971c2a
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
This commit is contained in:
Thorbjørn Lund Martsum 2017-10-12 10:58:06 +02:00
parent 03c3ba1815
commit a1c985c10b
2 changed files with 14 additions and 1 deletions
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2
src/widgets/itemviews/qabstractitemview.cpp
View File

@ -2194,7 +2194,7 @@ QAbstractItemViewPrivate::position(const QPoint &pos, const QRect &rect, const Q
{
QAbstractItemView::DropIndicatorPosition r = QAbstractItemView::OnViewport;
if (!overwrite) {
const int margin = 2;
const int margin = qBound(2, qRound(qreal(rect.height()) / 5.5), 12);
if (pos.y() - rect.top() < margin) {
r = QAbstractItemView::AboveItem;
} else if (rect.bottom() - pos.y() < margin) {

13
tests/manual/widgets/itemviews/qtreewidget/main.cpp
View File

@ -95,6 +95,18 @@ public:
item5sl.append("Approver");
/* QTreeWidgetItem *item4 =*/ new QTreeWidgetItem(item4, item5sl);
treeWidget->setDragEnabled(true);
treeWidget->viewport()->setAcceptDrops(true);
treeWidget->setDragDropMode(QAbstractItemView::InternalMove);
for (int u = 0; u < 12; ++u) {
const QString username = QString("Anonymous User %1").arg(u + 1);
QStringList info;
info << username << username << QString::number(u + 1) << QStringLiteral("Test user");
new QTreeWidgetItem(item4, info);
}
treeWidget->expandAll();
treeWidget->setColumnCount(item2sl.size());
QStringList itemInfo("First Name");
itemInfo.append("Last Name");
@ -133,6 +145,7 @@ int main(int argc, char *argv[])
{
QApplication app(argc, argv);
ExampleDlg d;
d.resize(d.sizeHint() * 3);
d.show();
app.exec();
}