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Fixup Compare Drag-N-Drop

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We have two new mime data types;

application/x-gc-intervals
application/x-gc-seasons

With packing routines into QMimeData declared
in IntervalTreeView and SeasonTreeView.

To get around an issue with overwrite mode on
drag and drop from the seasons / interval trees
we DO NOT ACCEPT the drop (even though we do
actually process the data).

All we need to do now is unpack the QMimeData in
ComparePane and then add the GUI elements to it etc.
This commit is contained in:
Mark Liversedge
2013-12-24 11:48:19 +00:00
parent 420161e400
commit 8257a9c6e8
6 changed files with 95 additions and 8 deletions
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44
src/IntervalTreeView.cpp
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@@ -24,7 +24,7 @@
IntervalTreeView::IntervalTreeView(Context *context) : context(context)
{
setDragDropMode(QAbstractItemView::InternalMove);
setDragDropOverwriteMode(true);
setDragDropOverwriteMode(false);
setDropIndicatorShown(true);
#ifdef Q_OS_MAC
setAttribute(Qt::WA_MacShowFocusRect, 0);
@@ -35,7 +35,7 @@ IntervalTreeView::IntervalTreeView(Context *context) : context(context)
void
IntervalTreeView::dropEvent(QDropEvent* event)
{
qDebug()<<"interval tree drop event!!";
qDebug()<<"interval tree drop event!!"<<event->mimeData()->urls();
IntervalItem* item1 = (IntervalItem *)itemAt(event->pos());
QTreeWidget::dropEvent(event);
@@ -44,3 +44,43 @@ qDebug()<<"interval tree drop event!!";
if (item1==topLevelItem(0) || item1 != item2)
QTreeWidget::itemChanged(item2, 0);
}
QStringList
IntervalTreeView::mimeTypes() const
{
QStringList returning;
returning << "application/x-gc-intervals";
return returning;
}
QMimeData *
IntervalTreeView::mimeData (const QList<QTreeWidgetItem *> items) const
{
QMimeData *returning = new QMimeData;
// we need to pack into a byte array
QByteArray rawData;
QDataStream stream(&rawData, QIODevice::WriteOnly);
stream.setVersion(QDataStream::Qt_4_6);
// pack data
stream << items.count();
foreach (QTreeWidgetItem *p, items) {
// convert to one of ours
IntervalItem *i = static_cast<IntervalItem*>(p);
// serialize
stream << p->text(0); // name
stream << static_cast<const void*>(i->ride);
stream << i->start << i->stop; // start and stop in secs
stream << i->startKM << i->stopKM; // start and stop km
stream << i->displaySequence;
}
// and return as mime data
returning->setData("application/x-gc-intervals", rawData);
return returning;
}