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

/*
 * 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_CURSORHEADER_H
#define PULSEVIEW_PV_VIEW_CURSORHEADER_H

#include <memory>

#include "marginwidget.hpp"

namespace pv {
namespace view {

class TimeMarker;

/**
 * Widget to hold the labels over the cursors.
 */
class CursorHeader : public MarginWidget
{
	Q_OBJECT

	static const int Padding;

	/**
	 * The vertical offset, relative to the bottom line of the widget,
	 * where the arrows of the cursor labels end.
	 */
	static const int BaselineOffset;

public:
	CursorHeader(View &parent);

	QSize sizeHint() const;

	void clear_selection();

private:
	void paintEvent(QPaintEvent *event);

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

	int calculateTextHeight();

	std::weak_ptr<TimeMarker> grabbed_marker_;
	QPoint mouse_down_point_;
	bool dragging_;
	const int textHeight_;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_CURSORHEADER_H
Commit	Line	Data
84a0d458 JS	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_CURSORHEADER_H
	22	#define PULSEVIEW_PV_VIEW_CURSORHEADER_H
	23
	24	#include <memory>
	25
2acdb232	26	#include "marginwidget.hpp"
84a0d458 JS	27
	28	namespace pv {
	29	namespace view {
	30
	31	class TimeMarker;
	32
	33	/**
	34	* Widget to hold the labels over the cursors.
	35	*/
	36	class CursorHeader : public MarginWidget
	37	{
	38	Q_OBJECT
	39
4707a23d JS	40	static const int Padding;
4707a23d JS	41
4d95ef60 JS	42	/**
	43	* The vertical offset, relative to the bottom line of the widget,
	44	* where the arrows of the cursor labels end.
	45	*/
	46	static const int BaselineOffset;
	47
84a0d458 JS	48	public:
	49	CursorHeader(View &parent);
	50
	51	QSize sizeHint() const;
	52
	53	void clear_selection();
	54
	55	private:
	56	void paintEvent(QPaintEvent *event);
	57
	58	void mouseMoveEvent(QMouseEvent *e);
	59	void mousePressEvent(QMouseEvent *e);
	60	void mouseReleaseEvent(QMouseEvent *);
	61
4707a23d	62	int calculateTextHeight();
84a0d458	63
8dbbc7f0 JH	64	std::weak_ptr<TimeMarker> grabbed_marker_;
	65	QPoint mouse_down_point_;
	66	bool dragging_;
	67	const int textHeight_;
84a0d458 JS	68	};
	69
	70	} // namespace view
	71	} // namespace pv
	72
	73	#endif // PULSEVIEW_PV_VIEW_CURSORHEADER_H