[pulseview.git] / pv / widgets / popup.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, see <http://www.gnu.org/licenses/>.
 */

#ifndef PULSEVIEW_PV_WIDGETS_POPUP_HPP
#define PULSEVIEW_PV_WIDGETS_POPUP_HPP

#include <QWidget>

namespace pv {
namespace widgets {

class Popup : public QWidget
{
	Q_OBJECT

public:
	enum Position
	{
		Right,
		Top,
		Left,
		Bottom
	};

private:
	static const unsigned int ArrowLength;
	static const unsigned int ArrowOverlap;
	static const unsigned int MarginWidth;

public:
	Popup(QWidget *parent);

	const QPoint& point() const;
	Position position() const;

	void set_position(const QPoint point, Position pos);

	bool eventFilter(QObject *obj, QEvent *event);

	void show();

private:
	bool space_for_arrow() const;

	QPolygon arrow_polygon() const;

	QRegion arrow_region() const;

	QRect bubble_rect() const;

	QRegion bubble_region() const;

	QRegion popup_region() const;

	void reposition_widget();

private:
	void closeEvent(QCloseEvent*);

	void paintEvent(QPaintEvent*);

	void resizeEvent(QResizeEvent*);

	void mouseReleaseEvent(QMouseEvent *event);

protected:
	void showEvent(QShowEvent *);

Q_SIGNALS:
	void closed();

private:
	QPoint point_;
	Position pos_;
};

} // namespace widgets
} // namespace pv

#endif // PULSEVIEW_PV_WIDGETS_POPUP_HPP
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, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#ifndef PULSEVIEW_PV_WIDGETS_POPUP_HPP
	21	#define PULSEVIEW_PV_WIDGETS_POPUP_HPP
	22
	23	#include <QWidget>
	24
	25	namespace pv {
	26	namespace widgets {
	27
	28	class Popup : public QWidget
	29	{
	30	Q_OBJECT
	31
	32	public:
	33	enum Position
	34	{
	35	Right,
	36	Top,
	37	Left,
	38	Bottom
	39	};
	40
	41	private:
	42	static const unsigned int ArrowLength;
	43	static const unsigned int ArrowOverlap;
	44	static const unsigned int MarginWidth;
	45
	46	public:
	47	Popup(QWidget *parent);
	48
	49	const QPoint& point() const;
	50	Position position() const;
	51
	52	void set_position(const QPoint point, Position pos);
	53
	54	bool eventFilter(QObject obj, QEvent event);
	55
	56	void show();
	57
	58	private:
	59	bool space_for_arrow() const;
	60
	61	QPolygon arrow_polygon() const;
	62
	63	QRegion arrow_region() const;
	64
	65	QRect bubble_rect() const;
	66
	67	QRegion bubble_region() const;
	68
	69	QRegion popup_region() const;
	70
	71	void reposition_widget();
	72
	73	private:
	74	void closeEvent(QCloseEvent*);
	75
	76	void paintEvent(QPaintEvent*);
	77
	78	void resizeEvent(QResizeEvent*);
	79
	80	void mouseReleaseEvent(QMouseEvent *event);
	81
	82	protected:
	83	void showEvent(QShowEvent *);
	84
	85	Q_SIGNALS:
	86	void closed();
	87
	88	private:
	89	QPoint point_;
	90	Position pos_;
	91	};
	92
	93	} // namespace widgets
	94	} // namespace pv
	95
	96	#endif // PULSEVIEW_PV_WIDGETS_POPUP_HPP