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latte-dock/app/view/eventssink.h

86 lines
2.2 KiB
C++

/*
* Copyright 2020 Michail Vourlakos <mvourlakos@gmail.com>
*
* This file is part of Latte-Dock
*
* Latte-Dock 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.
*
* Latte-Dock 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/>.
*/
#ifndef VIEWEVENTSSINK_H
#define VIEWEVENTSSINK_H
// Qt
#include <QEvent>
#include <QObject>
#include <QList>
#include <QPointer>
#include <QQuickItem>
namespace Latte {
class View;
}
namespace Latte {
namespace ViewPart {
//! This class is used in order to sunk events from children rects of originParentItem
//! into the destination Item. Each applet container from containment qml part is responsible
//! to initialize properly the originParentItem and the destinationItem to be used for
//! sunk events
class EventsSink: public QObject
{
Q_OBJECT
Q_PROPERTY(QQuickItem *originParentItem READ originParentItem NOTIFY itemsChanged)
Q_PROPERTY(QQuickItem *destinationItem READ destinationItem NOTIFY itemsChanged)
public:
EventsSink(Latte::View *parent);
virtual ~EventsSink();
bool isActive();
QQuickItem *originParentItem() const;
QQuickItem *destinationItem() const;
public slots:
Q_INVOKABLE void setSink(QQuickItem *originParent, QQuickItem *destination);
QEvent *onEvent(QEvent *e);
signals:
void itemsChanged();
private slots:
void release();
private:
QPointF positionAdjustedForDestination(const QPointF &point) const;
bool originSinksContain(const QPointF &point) const;
bool destinationContains(const QPointF &point) const;
private:
QPointer<Latte::View> m_view;
QPointer<QQuickItem> m_originParentItem;
QPointer<QQuickItem> m_destinationItem;
};
}
}
#endif