[pulseview.git] / pv / view / viewport.h

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef PULSEVIEW_PV_VIEW_VIEWPORT_H
#define PULSEVIEW_PV_VIEW_VIEWPORT_H

#include <QTimer>
#include <QWidget>
#include <QTouchEvent>

class QPainter;
class QPaintEvent;
class SigSession;

namespace pv {
namespace view {

class View;

class Viewport : public QWidget
{
	Q_OBJECT

public:
	explicit Viewport(View &parent);

	void signals_updated();

protected:
	void paintEvent(QPaintEvent *event);

private:
	bool event(QEvent *event);
	void mousePressEvent(QMouseEvent *event);
	void mouseReleaseEvent(QMouseEvent *event);
	void mouseMoveEvent(QMouseEvent *event);
	void mouseDoubleClickEvent(QMouseEvent * event);
	void wheelEvent(QWheelEvent *event);
	bool touchEvent(QTouchEvent *e);

private Q_SLOTS:
	void on_signals_moved();

private:
	View &_view;

	QPoint _mouse_down_point;
	double _mouse_down_offset;
	bool _mouse_down_valid;

	double _pinch_offset0;
	double _pinch_offset1;
	bool _pinch_zoom_active;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_VIEWPORT_H
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifndef PULSEVIEW_PV_VIEW_VIEWPORT_H
	22	#define PULSEVIEW_PV_VIEW_VIEWPORT_H
	23
	24	#include <QTimer>
	25	#include <QWidget>
	26	#include <QTouchEvent>
	27
	28	class QPainter;
	29	class QPaintEvent;
	30	class SigSession;
	31
	32	namespace pv {
	33	namespace view {
	34
	35	class View;
	36
	37	class Viewport : public QWidget
	38	{
	39	Q_OBJECT
	40
	41	public:
	42	explicit Viewport(View &parent);
	43
	44	void signals_updated();
	45
	46	protected:
	47	void paintEvent(QPaintEvent *event);
	48
	49	private:
	50	bool event(QEvent *event);
	51	void mousePressEvent(QMouseEvent *event);
	52	void mouseReleaseEvent(QMouseEvent *event);
	53	void mouseMoveEvent(QMouseEvent *event);
	54	void mouseDoubleClickEvent(QMouseEvent * event);
	55	void wheelEvent(QWheelEvent *event);
	56	bool touchEvent(QTouchEvent *e);
	57
	58	private Q_SLOTS:
	59	void on_signals_moved();
	60
	61	private:
	62	View &_view;
	63
	64	QPoint _mouse_down_point;
	65	double _mouse_down_offset;
	66	bool _mouse_down_valid;
	67
	68	double _pinch_offset0;
	69	double _pinch_offset1;
	70	bool _pinch_zoom_active;
	71	};
	72
	73	} // namespace view
	74	} // namespace pv
	75
	76	#endif // PULSEVIEW_PV_VIEW_VIEWPORT_H