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/*
* Copyright (C) Pedram Pourang (aka Tsu Jan) 2018-2021 <tsujan2000@gmail.com>
*
* Arqiver 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.
*
* Arqiver 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* @license GPL-3.0+ <https://spdx.org/licenses/GPL-3.0+.html>
*/
#ifndef TREEWIDGET_H
#define TREEWIDGET_H
#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QMouseEvent>
#include <QWheelEvent>
#include <QTimer>
namespace Arqiver {
class TreeWidget : public QTreeWidget {
Q_OBJECT
public:
TreeWidget(QWidget *parent = nullptr);
~TreeWidget() override;
QTreeWidgetItem* getItemFromIndex(const QModelIndex &index) const {
return itemFromIndex(index);
}
QModelIndex getIndexFromItem(const QTreeWidgetItem *item) const {
return indexFromItem(item);
}
void scrollTo(const QModelIndex &index, QAbstractItemView::ScrollHint hint = QAbstractItemView::EnsureVisible);
int getSizeHintForColumn(int column) const {
return sizeHintForColumn(column);
}
signals:
void dragStarted();
void enterPressed(QTreeWidgetItem *it);
protected:
virtual void mousePressEvent(QMouseEvent *event);
virtual void mouseMoveEvent(QMouseEvent *event);
virtual void keyReleaseEvent(QKeyEvent *event);
virtual void keyPressEvent(QKeyEvent *event);
virtual void wheelEvent(QWheelEvent *event);
private slots:
void scrollSmoothly();
private:
QPoint dragStartPosition_;
bool dragStarted_;
bool enterPressedHere_;
/* smooth scrolling */
struct scrollData {
int delta;
int leftFrames;
bool vertical;
};
QList<scrollData> queuedScrollSteps_;
QTimer *smoothScrollTimer_;
};
}
#endif // TREEWIDGET_H
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