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

/*
 * This file is part of the sigrok 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 PV_VIEW_VIEWPORT_H
#define PV_VIEW_VIEWPORT_H

#include <QtOpenGL/QGLWidget>
#include <QTimer>

class QPainter;
class QPaintEvent;
class SigSession;

namespace pv {
namespace view {

class View;

class Viewport : public QGLWidget
{
	Q_OBJECT

private:
	static const int SignalHeight;

	static const int MinorTickSubdivision;
	static const int ScaleUnits[3];

	static const QString SIPrefixes[9];
	static const int FirstSIPrefixPower;

public:
	explicit Viewport(View &parent);

	int get_total_height() const;

protected:
	void initializeGL();

	void resizeGL(int width, int height);

	void paintEvent(QPaintEvent *event);

private:
	void mousePressEvent(QMouseEvent *event);
	void mouseMoveEvent(QMouseEvent *event);
	void mouseReleaseEvent(QMouseEvent *event);
	void wheelEvent(QWheelEvent *event);

private:
	void setup_viewport(int width, int height);

	void paint_ruler(QPainter &p);

private:
	View &_view;

	QPoint _mouse_down_point;
	double _mouse_down_offset;
};

} // namespace view
} // namespace pv

#endif // PV_VIEW_VIEWPORT_H
Commit	Line	Data
	1	/*
	2	* This file is part of the sigrok 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 PV_VIEW_VIEWPORT_H
	22	#define PV_VIEW_VIEWPORT_H
	23
	24	#include <QtOpenGL/QGLWidget>
	25	#include <QTimer>
	26
	27	class QPainter;
	28	class QPaintEvent;
	29	class SigSession;
	30
	31	namespace pv {
	32	namespace view {
	33
	34	class View;
	35
	36	class Viewport : public QGLWidget
	37	{
	38	Q_OBJECT
	39
	40	private:
	41	static const int SignalHeight;
	42
	43	static const int MinorTickSubdivision;
	44	static const int ScaleUnits[3];
	45
	46	static const QString SIPrefixes[9];
	47	static const int FirstSIPrefixPower;
	48
	49	public:
	50	explicit Viewport(View &parent);
	51
	52	int get_total_height() const;
	53
	54	protected:
	55	void initializeGL();
	56
	57	void resizeGL(int width, int height);
	58
	59	void paintEvent(QPaintEvent *event);
	60
	61	private:
	62	void mousePressEvent(QMouseEvent *event);
	63	void mouseMoveEvent(QMouseEvent *event);
	64	void mouseReleaseEvent(QMouseEvent *event);
	65	void wheelEvent(QWheelEvent *event);
	66
	67	private:
	68	void setup_viewport(int width, int height);
	69
	70	void paint_ruler(QPainter &p);
	71
	72	private:
	73	View &_view;
	74
	75	QPoint _mouse_down_point;
	76	double _mouse_down_offset;
	77	};
	78
	79	} // namespace view
	80	} // namespace pv
	81
	82	#endif // PV_VIEW_VIEWPORT_H