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/*
Copyright (C) 2012 Sebastian Herbord. All rights reserved.
This file is part of Mod Organizer.
Mod Organizer is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Mod Organizer is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Mod Organizer. If not, see <http://www.gnu.org/licenses/>.
*/
#include "archivetree.h"
#include <QDragMoveEvent>
ArchiveTree::ArchiveTree(QWidget *parent) :
QTreeWidget(parent)
{
}
bool ArchiveTree::testMovePossible(QTreeWidgetItem *source, QTreeWidgetItem *target)
{
if ((target == NULL) ||
(source == NULL)) {
return false;
}
if ((source == target) ||
(source->parent() == target)) {
return false;
}
return true;
}
void ArchiveTree::dragEnterEvent(QDragEnterEvent *event)
{
QTreeWidgetItem *source = this->currentItem();
if ((source == NULL) || (source->parent() == NULL)) {
// can't change top level
event->ignore();
return;
} else {
QTreeWidget::dragEnterEvent(event);
}
}
void ArchiveTree::dragMoveEvent(QDragMoveEvent *event)
{
if (!testMovePossible(this->currentItem(), itemAt(event->pos()))) {
event->ignore();
} else {
QTreeWidget::dragMoveEvent(event);
}
}
void ArchiveTree::dropEvent(QDropEvent *event)
{
event->ignore();
QTreeWidgetItem *target = itemAt(event->pos());
QList<QTreeWidgetItem*> sourceItems = this->selectedItems();
for (QList<QTreeWidgetItem*>::iterator iter = sourceItems.begin();
iter != sourceItems.end(); ++iter) {
QTreeWidgetItem *source = *iter;
if ((source->parent() != NULL) &&
testMovePossible(source, target)) {
source->parent()->removeChild(source);
if (target->data(0, Qt::UserRole).toInt() != 0) {
// target is a file
if (target->parent() == NULL) {
// this should really not happen, how should a
// file get to the top level?
return;
}
int index = target->parent()->indexOfChild(target);
target->parent()->insertChild(index, source);
emit changed();
} else {
// target is a directory
target->insertChild(target->childCount(), source);
emit changed();
}
}
}
}
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