[pulseview.git] / pv / view / header.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_HEADER_H
#define PULSEVIEW_PV_VIEW_HEADER_H

#include <list>
#include <memory>
#include <utility>

#include "marginwidget.h"

namespace pv {
namespace view {

class Trace;
class View;

class Header : public MarginWidget
{
	Q_OBJECT

private:
	static const int Padding;

public:
	Header(View &parent);

	QSize sizeHint() const;

	/**
	 * The horizontal offset, relative to the left edge of the widget,
	 * where the arrows of the trace labels end.
	 */
	static const int BaselineOffset;

private:
	std::shared_ptr<pv::view::Trace> get_mouse_over_trace(
		const QPoint &pt);

	void clear_selection();

private:
	void paintEvent(QPaintEvent *event);

private:
	void mousePressEvent(QMouseEvent * event);

	void mouseReleaseEvent(QMouseEvent *event);

	void mouseMoveEvent(QMouseEvent *event);

	void leaveEvent(QEvent *event);

	void contextMenuEvent(QContextMenuEvent *event);

	void keyPressEvent(QKeyEvent *e);

private Q_SLOTS:
	void on_signals_changed();

	void on_signals_moved();

	void on_trace_changed();

Q_SIGNALS:
	void signals_moved();

private:
	QPoint _mouse_point;
	QPoint _mouse_down_point;
	bool _dragging;

	std::list<std::pair<std::weak_ptr<Trace>, int> >
		_drag_traces;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_HEADER_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_HEADER_H
	22	#define PULSEVIEW_PV_VIEW_HEADER_H
	23
	24	#include <list>
	25	#include <memory>
	26	#include <utility>
	27
	28	#include "marginwidget.h"
	29
	30	namespace pv {
	31	namespace view {
	32
	33	class Trace;
	34	class View;
	35
	36	class Header : public MarginWidget
	37	{
	38	Q_OBJECT
	39
	40	private:
	41	static const int Padding;
	42
	43	public:
	44	Header(View &parent);
	45
	46	QSize sizeHint() const;
	47
	48	/**
	49	* The horizontal offset, relative to the left edge of the widget,
	50	* where the arrows of the trace labels end.
	51	*/
	52	static const int BaselineOffset;
	53
	54	private:
	55	std::shared_ptr<pv::view::Trace> get_mouse_over_trace(
	56	const QPoint &pt);
	57
	58	void clear_selection();
	59
	60	private:
	61	void paintEvent(QPaintEvent *event);
	62
	63	private:
	64	void mousePressEvent(QMouseEvent * event);
	65
	66	void mouseReleaseEvent(QMouseEvent *event);
	67
	68	void mouseMoveEvent(QMouseEvent *event);
	69
	70	void leaveEvent(QEvent *event);
	71
	72	void contextMenuEvent(QContextMenuEvent *event);
	73
	74	void keyPressEvent(QKeyEvent *e);
	75
	76	private Q_SLOTS:
	77	void on_signals_changed();
	78
	79	void on_signals_moved();
	80
	81	void on_trace_changed();
	82
	83	Q_SIGNALS:
	84	void signals_moved();
	85
	86	private:
	87	QPoint _mouse_point;
	88	QPoint _mouse_down_point;
	89	bool _dragging;
	90
	91	std::list<std::pair<std::weak_ptr<Trace>, int> >
	92	_drag_traces;
	93	};
	94
	95	} // namespace view
	96	} // namespace pv
	97
	98	#endif // PULSEVIEW_PV_VIEW_HEADER_H