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

/*
 * 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.hpp"

#include <memory>

#include <QPainter>

class QPainter;

namespace pv {
namespace view {

class CursorPair : public TimeItem
{
private:
	static const int DeltaPadding;

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

public:
	/**
	 * Returns true if the item is visible and enabled.
	 */
	bool enabled() const;

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

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

	QPoint point() const;

	pv::widgets::Popup* create_popup(QWidget *parent);

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

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

	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:
	std::shared_ptr<Cursor> first_, second_;

	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.hpp"
	25
	26	#include <memory>
	27
	28	#include <QPainter>
	29
	30	class QPainter;
	31
	32	namespace pv {
	33	namespace view {
	34
	35	class CursorPair : public TimeItem
	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	public:
	48	/**
	49	* Returns true if the item is visible and enabled.
	50	*/
	51	bool enabled() const;
	52
	53	/**
	54	* Returns a pointer to the first cursor.
	55	*/
	56	std::shared_ptr<Cursor> first() const;
	57
	58	/**
	59	* Returns a pointer to the second cursor.
	60	*/
	61	std::shared_ptr<Cursor> second() const;
	62
	63	QPoint point() const;
	64
	65	pv::widgets::Popup* create_popup(QWidget *parent);
	66
	67	public:
	68	QRectF get_label_rect(const QRect &rect) const;
	69
	70	void draw_markers(QPainter &p, const QRect &rect);
	71
	72	void draw_viewport_background(QPainter &p, const QRect &rect);
	73
	74	void draw_viewport_foreground(QPainter &p, const QRect &rect);
	75
	76	void compute_text_size(QPainter &p, unsigned int prefix);
	77
	78	std::pair<float, float> get_cursor_offsets() const;
	79
	80	private:
	81	std::shared_ptr<Cursor> first_, second_;
	82
	83	QSizeF text_size_;
	84	};
	85
	86	} // namespace view
	87	} // namespace pv
	88
	89	#endif // PULSEVIEW_PV_VIEW_CURSORPAIR_H