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

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

#include "marginwidget.hpp"

namespace pv {
namespace view {

class RowItem;
class View;
class ViewItem;

class Header : public MarginWidget
{
	Q_OBJECT

private:
	static const int Padding;

public:
	Header(View &parent);

	QSize sizeHint() const;

	/**
	 * The extended area that the header widget would like to be sized to.
	 * @remarks This area is the area specified by sizeHint, extended by
	 * the area to overlap the viewport.
	 */
	QSize extended_size_hint() 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:
	/**
	 * Gets the row items.
	 */
	std::vector< std::shared_ptr<pv::view::ViewItem> > items();

	/**
	 * Gets the first view item which has a label that contains @c pt .
	 * @param pt the point to search with.
	 * @return the view item that has been found, or and empty
	 *   @c shared_ptr if no item was found.
	 */
	std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
		const QPoint &pt);

private:
	void paintEvent(QPaintEvent *event);

private:
	void contextMenuEvent(QContextMenuEvent *event);

	void keyPressEvent(QKeyEvent *e);

private Q_SLOTS:
	void on_group();

	void on_ungroup();
};

} // 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.hpp"
	29
	30	namespace pv {
	31	namespace view {
	32
	33	class RowItem;
	34	class View;
	35	class ViewItem;
	36
	37	class Header : public MarginWidget
	38	{
	39	Q_OBJECT
	40
	41	private:
	42	static const int Padding;
	43
	44	public:
	45	Header(View &parent);
	46
	47	QSize sizeHint() const;
	48
	49	/**
	50	* The extended area that the header widget would like to be sized to.
	51	* @remarks This area is the area specified by sizeHint, extended by
	52	* the area to overlap the viewport.
	53	*/
	54	QSize extended_size_hint() const;
	55
	56	/**
	57	* The horizontal offset, relative to the left edge of the widget,
	58	* where the arrows of the trace labels end.
	59	*/
	60	static const int BaselineOffset;
	61
	62	private:
	63	/**
	64	* Gets the row items.
	65	*/
	66	std::vector< std::shared_ptr<pv::view::ViewItem> > items();
	67
	68	/**
	69	* Gets the first view item which has a label that contains @c pt .
	70	* @param pt the point to search with.
	71	* @return the view item that has been found, or and empty
	72	* @c shared_ptr if no item was found.
	73	*/
	74	std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
	75	const QPoint &pt);
	76
	77	private:
	78	void paintEvent(QPaintEvent *event);
	79
	80	private:
	81	void contextMenuEvent(QContextMenuEvent *event);
	82
	83	void keyPressEvent(QKeyEvent *e);
	84
	85	private Q_SLOTS:
	86	void on_group();
	87
	88	void on_ungroup();
	89	};
	90
	91	} // namespace view
	92	} // namespace pv
	93
	94	#endif // PULSEVIEW_PV_VIEW_HEADER_H