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

/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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**************************************************************************/

#ifndef QMLPROFILERTRACEVIEW_H
#define QMLPROFILERTRACEVIEW_H

#include <QDeclarativeView>

namespace Analyzer {
class IAnalyzerTool;
}

namespace QmlProfiler {
namespace Internal {

class QmlProfilerStateManager;
class QmlProfilerViewManager;
class QmlProfilerDataModel;

// capture mouse wheel events
class MouseWheelResizer : public QObject {
    Q_OBJECT
public:
    MouseWheelResizer(QObject *parent=0):QObject(parent){}
protected:
    bool eventFilter(QObject *obj, QEvent *event);
signals:
    void mouseWheelMoved(int x, int y, int delta);
};

// centralized zoom control
class ZoomControl : public QObject {
    Q_OBJECT
public:
    ZoomControl(QObject *parent=0):QObject(parent),m_startTime(0),m_endTime(0) {}
    ~ZoomControl(){}

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

signals:
    void rangeChanged();

private:
    qint64 m_startTime;
    qint64 m_endTime;
};

class ScrollableDeclarativeView : public QDeclarativeView
{
    Q_OBJECT
public:
    explicit ScrollableDeclarativeView(QWidget *parent = 0);
    ~ScrollableDeclarativeView();
protected:
    void scrollContentsBy(int dx, int dy);
};

class QmlProfilerTraceView : public QWidget
{
    Q_OBJECT

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

    void reset();

    bool hasValidSelection() const;
    qint64 selectionStart() const;
    qint64 selectionEnd() const;

public slots:
    void clearDisplay();
    void selectNextEventWithId(int eventId);

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

    void setZoomLevel(int zoomLevel);
    void updateRange();
    void mouseWheelMoved(int mouseX, int mouseY, int wheelDelta);

    void updateToolTip(const QString &text);
    void updateVerticalScroll(int newPosition);
    void profilerDataModelStateChanged();

protected:
    virtual void resizeEvent(QResizeEvent *event);

private slots:
    void profilerStateChanged();
    void clientRecordingChanged();
    void serverRecordingChanged();

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

    void jumpToPrev();
    void jumpToNext();
    void rangeModeChanged(bool);
    void lockModeChanged(bool);
    void enableToolbar(bool);
    void zoomLevelChanged(int);

    void resized();

private:
    void contextMenuEvent(QContextMenuEvent *);
    QWidget *createToolbar();
    QWidget *createZoomToolbar();

    void setRecording(bool recording);
    void setAppKilled();

private:
    class QmlProfilerTraceViewPrivate;
    QmlProfilerTraceViewPrivate *d;
};

} // namespace Internal
} // namespace QmlProfiler

#endif // QMLPROFILERTRACEVIEW_H