Make it possible to move from top to bottom

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/divelogimportdialog.cpp

@@ -103,6 +103,37 @@ void ColumnNameView::mousePressEvent(QMouseEvent *press)
 	}
 }
 
+void ColumnNameView::dragLeaveEvent(QDragLeaveEvent *leave)
+{
+	Q_UNUSED(leave);
+}
+
+void ColumnNameView::dragEnterEvent(QDragEnterEvent *event)
+{
+	event->acceptProposedAction();
+}
+
+void ColumnNameView::dragMoveEvent(QDragMoveEvent *event)
+{
+	QModelIndex curr = indexAt(event->pos());
+	if (!curr.isValid() || curr.row() != 0)
+		return;
+	event->acceptProposedAction();
+}
+
+void ColumnNameView::dropEvent(QDropEvent *event)
+{
+	const QMimeData *mimeData = event->mimeData();
+	if (mimeData->data(subsurface_mimedata).count()) {
+		if (event->source() != this) {
+			event->acceptProposedAction();
+			QVariant value = QString(mimeData->data(subsurface_mimedata));
+			model()->insertRow(model()->rowCount());
+			model()->setData(model()->index(model()->rowCount()-1, 0), value);
+		}
+	}
+}
+
 ColumnDropCSVView::ColumnDropCSVView(QWidget *parent)
 {
 	setAcceptDrops(true);

qt-ui/divelogimportdialog.h

@@ -50,6 +50,10 @@ public:
 	ColumnNameView(QWidget *parent);
 protected:
 	void mousePressEvent(QMouseEvent *press);
+	void dragLeaveEvent(QDragLeaveEvent *leave);
+	void dragEnterEvent(QDragEnterEvent *event);
+	void dragMoveEvent(QDragMoveEvent *event);
+	void dropEvent(QDropEvent *event);
 private:
 	int currentDraggedIndex;
 };