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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef TREEVIEW_H
#define TREEVIEW_H
#include <QImage>
#include <QPixmap>
#include <QTreeView>
class QIcon;
class TreeView : public QTreeView {
Q_OBJECT
public:
static QImage setOpacity(const QImage& orig, double opacity = 0.15);
static QPixmap createBgndPixmap(const QIcon& icon);
static void setForceSingleClick(bool v);
static bool getForceSingleClick();
static QModelIndexList sortIndexes(const QModelIndexList& list);
static void drag(Qt::DropActions supportedActions, QAbstractItemView* view, const QModelIndexList& items);
TreeView(QWidget* parent = nullptr, bool menuAlwaysAllowed = false);
~TreeView() override;
void setPageDefaults();
void setExpandOnClick();
void selectionChanged(const QItemSelection& selected, const QItemSelection& deselected) override;
bool haveSelectedItems() const;
bool haveUnSelectedItems() const;
void startDrag(Qt::DropActions supportedActions) override { drag(supportedActions, this, selectedIndexes()); }
void mouseReleaseEvent(QMouseEvent* event) override;
QModelIndexList selectedIndexes() const override { return selectedIndexes(true); }
QModelIndexList selectedIndexes(bool sorted) const;
void expandAll(const QModelIndex& idx = QModelIndex(), bool singleLevelOnly = false);
void collapseToLevel(int level, const QModelIndex& idx = QModelIndex());
virtual void expand(const QModelIndex& idx, bool singleOnly = false);
virtual void collapse(const QModelIndex& idx, bool singleOnly = false);
void setModel(QAbstractItemModel* m) override;
bool checkBoxClicked(const QModelIndex& idx) const;
void setUseSimpleDelegate();
void setBackgroundImage(const QIcon& icon);
void paintEvent(QPaintEvent* e) override;
void setForceSingleColumn(bool f) { forceSingleColumn = f; }
void installFilter(QObject* f)
{
eventFilter = f;
installEventFilter(f);
}
QObject* filter() const { return eventFilter; }
void setInfoText(const QString& i)
{
info = i;
update();
}
private Q_SLOTS:
void correctSelection();
// void itemWasActivated(const QModelIndex &index);
void itemWasClicked(const QModelIndex& index);
Q_SIGNALS:
void itemsSelected(bool);
void itemActivated(const QModelIndex& index);// Only emitted if view is set to single-click
private:
QString info;
QObject* eventFilter;
bool forceSingleColumn;
bool alwaysAllowMenu;
QPixmap bgnd;
};
#endif
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