TrackView.h

Go to the documentation of this file.

/***************************************************************************
    TrackView.h  -  signal views that shows the track in time space
                             -------------------
    begin                : Sat Jan 30 2010
    copyright            : (C) 2010 by Thomas Eschenbacher
    email                : Thomas.Eschenbacher@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef TRACK_VIEW_H
#define TRACK_VIEW_H

#include "config.h"

#include <QtGlobal>
#include <QImage>
#include <QObject>
#include <QPoint>
#include <QPointer>
#include <QWidget>

#include "libkwave/Sample.h"

#include "libgui/SignalView.h"
#include "libgui/TrackPixmap.h"

class QPaintEvent;
class QResizeEvent;

namespace Kwave
{

    class SignalManager; // forward declaration
    class Track;

    class Q_DECL_EXPORT TrackView: public SignalView
    {
        Q_OBJECT
    public:
        TrackView(QWidget *parent, QWidget *controls,
                  Kwave::SignalManager *signal_manager,
                  Kwave::Track *track);

        virtual ~TrackView() Q_DECL_OVERRIDE;

        virtual void refresh() Q_DECL_OVERRIDE;

        virtual void setZoomAndOffset(double zoom, sample_index_t offset)
            Q_DECL_OVERRIDE;

        virtual void setVerticalZoom(double zoom) Q_DECL_OVERRIDE;

        virtual void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;

        virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;

        virtual bool canHandleSelection() const Q_DECL_OVERRIDE { return true; }

        virtual QSharedPointer<Kwave::ViewItem> findItem(const QPoint &pos)
            Q_DECL_OVERRIDE;

        virtual void handleContextMenu(const QPoint &pos, QMenu *menu)
            Q_DECL_OVERRIDE;

    public slots:

        virtual void showCursor(sample_index_t pos = SAMPLE_INDEX_MAX)
            Q_DECL_OVERRIDE;

    private slots:

        void refreshSignalLayer();

        void refreshSelectionLayer();

        void refreshMarkersLayer();

        void refreshAllLayers();

        void contextMenuLabelNew();

    private:

        Kwave::TrackPixmap m_pixmap;

        int m_last_width;

        int m_last_height;

        QImage m_image;

        QImage m_img_signal;

        QImage m_img_selection;

        QImage m_img_markers;

        bool m_img_signal_needs_refresh;

        bool m_img_selection_needs_refresh;

        bool m_img_markers_needs_refresh;

        sample_index_t m_mouse_click_position;

        sample_index_t m_cursor_pos;
    };
}

#endif /* TRACK_VIEW_H */

//***************************************************************************
//***************************************************************************