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

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2013 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_CURSORPAIR_H
#define PULSEVIEW_PV_VIEW_CURSORPAIR_H

#include "cursor.h"

#include <boost/shared_ptr.hpp>

#include <QPainter>

class QPainter;

namespace pv {
namespace view {

class CursorPair
{
private:
	static const int DeltaPadding;

public:
	/**
	 * Constructor.
	 * @param view A reference to the view that owns this cursor pair.
	 */
	CursorPair(View &view);

	/**
	 * Returns a pointer to the first cursor.
	 */
	boost::shared_ptr<Cursor> first() const;

	/**
	 * Returns a pointer to the second cursor.
	 */
	boost::shared_ptr<Cursor> second() const;

public:
	QRectF get_label_rect(const QRect &rect) const;

	void draw_markers(QPainter &p,
		const QRect &rect, unsigned int prefix);

	void draw_viewport_background(QPainter &p, const QRect &rect);

	void draw_viewport_foreground(QPainter &p, const QRect &rect);

	void compute_text_size(QPainter &p, unsigned int prefix);

	std::pair<float, float> get_cursor_offsets() const;

private:
	boost::shared_ptr<Cursor> _first, _second;
	const View &_view;

	QSizeF _text_size;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_CURSORPAIR_H
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2013 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_CURSORPAIR_H
	22	#define PULSEVIEW_PV_VIEW_CURSORPAIR_H
	23
	24	#include "cursor.h"
	25
	26	#include <boost/shared_ptr.hpp>
	27
	28	#include <QPainter>
	29
	30	class QPainter;
	31
	32	namespace pv {
	33	namespace view {
	34
	35	class CursorPair
	36	{
	37	private:
	38	static const int DeltaPadding;
	39
	40	public:
	41	/**
	42	* Constructor.
	43	* @param view A reference to the view that owns this cursor pair.
	44	*/
	45	CursorPair(View &view);
	46
	47	/**
	48	* Returns a pointer to the first cursor.
	49	*/
	50	boost::shared_ptr<Cursor> first() const;
	51
	52	/**
	53	* Returns a pointer to the second cursor.
	54	*/
	55	boost::shared_ptr<Cursor> second() const;
	56
	57	public:
	58	QRectF get_label_rect(const QRect &rect) const;
	59
	60	void draw_markers(QPainter &p,
	61	const QRect &rect, unsigned int prefix);
	62
	63	void draw_viewport_background(QPainter &p, const QRect &rect);
	64
	65	void draw_viewport_foreground(QPainter &p, const QRect &rect);
	66
	67	void compute_text_size(QPainter &p, unsigned int prefix);
	68
	69	std::pair<float, float> get_cursor_offsets() const;
	70
	71	private:
	72	boost::shared_ptr<Cursor> _first, _second;
	73	const View &_view;
	74
	75	QSizeF _text_size;
	76	};
	77
	78	} // namespace view
	79	} // namespace pv
	80
	81	#endif // PULSEVIEW_PV_VIEW_CURSORPAIR_H