qt-creator/src/plugins/qmlprofiler/qmlprofilertraceview.h

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**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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#ifndef QMLPROFILERTRACEVIEW_H
#define QMLPROFILERTRACEVIEW_H

#include "qmlprofilermodelmanager.h"
#include <QQuickView>
#include <QWidget>
#include <QTimer>

namespace Analyzer { class IAnalyzerTool; }

namespace QmlProfiler {

class QmlProfilerModelManager;
namespace Internal {

class QmlProfilerStateManager;
class QmlProfilerViewManager;

// centralized zoom control
class ZoomControl : public QObject {
    Q_OBJECT
public:
    static const qint64 MAX_ZOOM_FACTOR = 1 << 12;

    ZoomControl(const QmlProfilerTraceTime *traceTime, QObject *parent = 0);
    ~ZoomControl(){}

    Q_INVOKABLE void setRange(qint64 startTime, qint64 endTime);
    Q_INVOKABLE qint64 startTime() const { return m_startTime; }
    Q_INVOKABLE qint64 endTime() const { return m_endTime; }
    Q_INVOKABLE qint64 duration() const { return m_endTime - m_startTime; }

    Q_INVOKABLE qint64 windowStart() const { return m_windowStart; }
    Q_INVOKABLE qint64 windowEnd() const { return m_windowEnd; }
    Q_INVOKABLE qint64 windowLength() const { return m_windowEnd - m_windowStart; }
    void setWindowLocked(bool lock) { m_windowLocked = lock; }

signals:
    void rangeChanged();
    void windowChanged();

private slots:
    void rebuildWindow();
    void moveWindow();

private:
    qint64 m_startTime;
    qint64 m_endTime;
    qint64 m_windowStart;
    qint64 m_windowEnd;

    const QmlProfilerTraceTime *m_traceTime;
    QTimer m_timer;
    bool m_windowLocked;
};

class QmlProfilerTraceView : public QWidget
{
    Q_OBJECT

public:
    explicit QmlProfilerTraceView(QWidget *parent, Analyzer::IAnalyzerTool *profilerTool, QmlProfilerViewManager *container, QmlProfilerModelManager *modelManager, QmlProfilerStateManager *profilerState);
    ~QmlProfilerTraceView();

    void reset();

    bool hasValidSelection() const;
    qint64 selectionStart() const;
    qint64 selectionEnd() const;
    void showContextMenu(QPoint position);

public slots:
    void clear();
    void selectNextEventByHash(const QString &eventHash);
    void selectNextEventByLocation(const QString &filename, const int line, const int column);

private slots:
    void updateCursorPosition();
    void toggleRangeMode(bool);
    void updateRangeButton();
    void toggleLockMode(bool);
    void updateLockButton();

    void updateRange();

    void updateToolTip(const QString &text);
    void profilerDataModelStateChanged();

protected:
    virtual void resizeEvent(QResizeEvent *event);
    virtual void contextMenuEvent(QContextMenuEvent *event);
    virtual void mousePressEvent(QMouseEvent *event);
    virtual void mouseReleaseEvent(QMouseEvent *event);

private slots:
    void setZoomSliderEnabled(bool enabled);
    void setZoomSliderVisible(bool visible);

signals:
    void gotoSourceLocation(const QString &fileUrl, int lineNumber, int columNumber);

    void jumpToPrev();
    void jumpToNext();
    void rangeModeChanged(bool);
    void lockModeChanged(bool);
    void enableToolbar(bool);
    void showZoomSlider(bool);

    void resized();

private:
    QWidget *createToolbar();

private:
    class QmlProfilerTraceViewPrivate;
    QmlProfilerTraceViewPrivate *d;
};

class QmlProfilerQuickView : public QQuickView {
public:
    QmlProfilerQuickView(QmlProfilerTraceView *parent) : parent(parent) {}
protected:
    QmlProfilerTraceView *parent;
    bool event(QEvent *ev);
};

} // namespace Internal
} // namespace QmlProfiler

#endif // QMLPROFILERTRACEVIEW_H