view layer/IntervalLayer.h @ 43:84d1d2076bf7

README file update

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sound Access
	EASAIER client application.
	Silogic 2007. Luc Barthélémy.

    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.  See the file
    COPYING included with this distribution for more information.
*/


#ifndef _INTERVAL_LAYER_H_
#define _INTERVAL_LAYER_H_

#include "layer/Layer.h"
#include "data/model/IntervalModel.h"

#include <QObject>
#include <QColor>

class View;
class QPainter;

class IntervalLayer : public Layer
{
    Q_OBJECT

public:
    IntervalLayer();
	virtual ~IntervalLayer();


    virtual const Model *getModel() const { return m_model; }
    void setModel(IntervalModel *model);

	virtual void paint(View *, QPainter &, QRect) const;   

    virtual QString toXmlString(QString indent = "",
				QString extraAttributes = "") const;

	virtual QString toEasaierXmlString(QString indent = "",
				QString extraAttributes = "") const;

	// From PropertyContainer
    virtual PropertyList getProperties() const;
	virtual PropertyType getPropertyType(const PropertyName &) const;
	virtual int getPropertyRangeAndValue(const PropertyName &,
                                         int *min, int *max, int *deflt) const;
    virtual QString getPropertyValueLabel(const PropertyName &,
					  int value) const;

	void setProperties(const QXmlAttributes &attributes);
    virtual void setProperty(const PropertyName &, int value);

	virtual QString getPropertyLabel(const PropertyName &) const;

    void setBaseColour(QColor);
    QColor getBaseColour() const { return m_colour; }

    virtual bool getValueExtents(float &min, float &max,
                                 bool &log, QString &unit) const;

	virtual QString getFeatureDescription(View *v, QPoint &) const;

	virtual bool isLayerEditable() const { return true; }

	virtual bool snapToFeatureFrame(View *v, int &frame,
				    size_t &resolution,
				    SnapType snap) const;

	// for edition
	virtual void drawStart(View *, QMouseEvent *);
    virtual void drawDrag(View *, QMouseEvent *);
    virtual void drawEnd(View *, QMouseEvent *);

    virtual void editStart(View *, QMouseEvent *);
    virtual void editDrag(View *, QMouseEvent *);
    virtual void editEnd(View *, QMouseEvent *);

    virtual void editOpen(View *, QMouseEvent *); // on double-click

    virtual void moveSelection(Selection s, size_t newStartFrame);
    virtual void resizeSelection(Selection s, Selection newSize);
    virtual void deleteSelection(Selection s);

    virtual void copy(Selection s, Clipboard &to);
    virtual void paste(const Clipboard &from, int frameOffset);

protected:

	int getYForHeight(View *v, float height) const;
    float getHeightForY(View *v, int y) const;

	IntervalList getIntervalAt(View *v, int x, int y);
	IntervalList getInterval(long start, long end);

private:

	IntervalModel*	m_model;
    QColor			m_colour;

    int									m_editing;
	TimeIntervalPtr						m_editingInterval;
	IntervalModel::IntervalCommand*		m_editingCommand;
};

#endif //_INTERVAL_LAYER_H_