[pulseview.git] / pv / view / ruler.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_RULER_H
#define PULSEVIEW_PV_VIEW_RULER_H

#include <QWidget>

namespace pv {
namespace view {

class TimeMarker;
class View;

class Ruler : public QWidget
{
	Q_OBJECT

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

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

	static const int HoverArrowSize;

public:
	Ruler(View &parent);

private:
	void paintEvent(QPaintEvent *event);

	void mouseMoveEvent(QMouseEvent *e);
	void mousePressEvent(QMouseEvent *e);
	void mouseReleaseEvent(QMouseEvent *);

private:
	void draw_cursors(QPainter &p);

	/**
	 * Draw a hover arrow under the cursor position.
	 */
	void draw_hover_mark(QPainter &p);

private slots:
	void hover_point_changed();

private:
	View &_view;

	TimeMarker *_grabbed_marker;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_RULER_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_RULER_H
	22	#define PULSEVIEW_PV_VIEW_RULER_H
	23
	24	#include <QWidget>
	25
	26	namespace pv {
	27	namespace view {
	28
	29	class TimeMarker;
	30	class View;
	31
	32	class Ruler : public QWidget
	33	{
	34	Q_OBJECT
	35
	36	private:
	37	static const int MinorTickSubdivision;
	38	static const int ScaleUnits[3];
	39
	40	static const QString SIPrefixes[9];
	41	static const int FirstSIPrefixPower;
	42
	43	static const int HoverArrowSize;
	44
	45	public:
	46	Ruler(View &parent);
	47
	48	private:
	49	void paintEvent(QPaintEvent *event);
	50
	51	void mouseMoveEvent(QMouseEvent *e);
	52	void mousePressEvent(QMouseEvent *e);
	53	void mouseReleaseEvent(QMouseEvent *);
	54
	55	private:
	56	void draw_cursors(QPainter &p);
	57
	58	/**
	59	* Draw a hover arrow under the cursor position.
	60	*/
	61	void draw_hover_mark(QPainter &p);
	62
	63	private slots:
	64	void hover_point_changed();
	65
	66	private:
	67	View &_view;
	68
	69	TimeMarker *_grabbed_marker;
	70	};
	71
	72	} // namespace view
	73	} // namespace pv
	74
	75	#endif // PULSEVIEW_PV_VIEW_RULER_H