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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef TIMELINEZOOMCONTROL_H
#define TIMELINEZOOMCONTROL_H
#include "timeline_global.h"
#include <QTimer>
namespace Timeline {
class TIMELINE_EXPORT TimelineZoomControl : public QObject {
Q_OBJECT
Q_PROPERTY(qint64 traceStart READ traceStart NOTIFY traceChanged)
Q_PROPERTY(qint64 traceEnd READ traceEnd NOTIFY traceChanged)
Q_PROPERTY(qint64 traceDuration READ traceDuration NOTIFY traceChanged)
Q_PROPERTY(qint64 windowStart READ windowStart NOTIFY windowChanged)
Q_PROPERTY(qint64 windowEnd READ windowEnd NOTIFY windowChanged)
Q_PROPERTY(qint64 windowDuration READ windowDuration NOTIFY windowChanged)
Q_PROPERTY(qint64 rangeStart READ rangeStart NOTIFY rangeChanged)
Q_PROPERTY(qint64 rangeEnd READ rangeEnd NOTIFY rangeChanged)
Q_PROPERTY(qint64 rangeDuration READ rangeDuration NOTIFY rangeChanged)
Q_PROPERTY(qint64 selectionStart READ selectionStart NOTIFY selectionChanged)
Q_PROPERTY(qint64 selectionEnd READ selectionEnd NOTIFY selectionChanged)
Q_PROPERTY(qint64 selectionDuration READ selectionDuration NOTIFY selectionChanged)
Q_PROPERTY(bool windowLocked READ windowLocked WRITE setWindowLocked NOTIFY windowLockedChanged)
Q_PROPERTY(bool windowMoving READ windowMoving NOTIFY windowMovingChanged)
Q_PROPERTY(qint64 maximumZoomFactor READ maximumZoomFactor CONSTANT)
Q_PROPERTY(qint64 minimumRangeLength READ minimumRangeLength CONSTANT)
public:
qint64 maximumZoomFactor() const { return 1 << 10; }
qint64 minimumRangeLength() const { return 500; }
TimelineZoomControl(QObject *parent = 0);
qint64 traceStart() const { return m_traceStart; }
qint64 traceEnd() const { return m_traceEnd; }
qint64 traceDuration() const { return m_traceEnd - m_traceStart; }
qint64 windowStart() const { return m_windowStart; }
qint64 windowEnd() const { return m_windowEnd; }
qint64 windowDuration() const { return m_windowEnd - m_windowStart; }
qint64 rangeStart() const { return m_rangeStart; }
qint64 rangeEnd() const { return m_rangeEnd; }
qint64 rangeDuration() const { return m_rangeEnd - m_rangeStart; }
qint64 selectionStart() const { return m_selectionStart; }
qint64 selectionEnd() const { return m_selectionEnd; }
qint64 selectionDuration() const { return m_selectionEnd - m_selectionStart; }
bool windowLocked() const { return m_windowLocked; }
bool windowMoving() const { return m_timer.isActive(); }
virtual void clear();
signals:
void traceChanged(qint64 start, qint64 end);
void windowChanged(qint64 start, qint64 end);
void rangeChanged(qint64 start, qint64 end);
void selectionChanged(qint64 start, qint64 end);
void windowLockedChanged(bool windowLocked);
void windowMovingChanged(bool windowMoving);
public slots:
void setTrace(qint64 start, qint64 end);
void setRange(qint64 start, qint64 end);
void setSelection(qint64 start, qint64 end);
void setWindowLocked(bool windowLocked);
protected slots:
void moveWindow();
protected:
qint64 m_traceStart;
qint64 m_traceEnd;
qint64 m_windowStart;
qint64 m_windowEnd;
qint64 m_rangeStart;
qint64 m_rangeEnd;
qint64 m_selectionStart;
qint64 m_selectionEnd;
QTimer m_timer;
bool m_windowLocked;
void rebuildWindow();
void clampRangeToWindow();
};
} // namespace Timeline
#endif // TIMELINEZOOMCONTROL_H
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