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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "tracing_global.h"
#include <QtQml/qqml.h>
#include <QTimer>
namespace Timeline {
class TRACING_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)
QML_ANONYMOUS
public:
qint64 maximumZoomFactor() const { return 1 << 10; }
qint64 minimumRangeLength() const { return 500; }
TimelineZoomControl(QObject *parent = nullptr);
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();
Q_INVOKABLE void setTrace(qint64 start, qint64 end);
Q_INVOKABLE void setRange(qint64 start, qint64 end);
Q_INVOKABLE void setSelection(qint64 start, qint64 end);
void setWindowLocked(bool windowLocked);
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);
protected:
void moveWindow();
void rebuildWindow();
void clampRangeToWindow();
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;
};
} // namespace Timeline
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