[pulseview.git] / pv / widgets / sweeptimingwidget.cpp

/*
 * 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
 */

#include "sweeptimingwidget.h"

#include <assert.h>

namespace pv {
namespace widgets {

SweepTimingWidget::SweepTimingWidget(const char *suffix,
	QWidget *parent) :
	QWidget(parent),
	_layout(this),
	_value(this),
	_list(this),
	_value_type(None)
{
	setContentsMargins(0, 0, 0, 0);

	_value.setDecimals(0);
	_value.setSuffix(QString::fromUtf8(suffix));

	connect(&_list, SIGNAL(currentIndexChanged(int)),
		this, SIGNAL(value_changed()));
	connect(&_value, SIGNAL(editingFinished()),
		this, SIGNAL(value_changed()));

	setLayout(&_layout);
	_layout.setMargin(0);
	_layout.addWidget(&_list);
	_layout.addWidget(&_value);

	show_none();
}

void SweepTimingWidget::show_none()
{
	_value_type = None;
	_value.hide();
	_list.hide();
}

void SweepTimingWidget::show_min_max_step(uint64_t min, uint64_t max,
	uint64_t step)
{
	_value_type = MinMaxStep;

	_value.setRange(min, max);
	_value.setSingleStep(step);

	_value.show();
	_list.hide();
}

void SweepTimingWidget::show_list(const uint64_t *vals, size_t count)
{
	_value_type = List;

	_list.clear();
	for (size_t i = 0; i < count; i++)
	{
		char *const s = sr_samplerate_string(vals[i]);
		_list.addItem(QString::fromUtf8(s),
			qVariantFromValue(vals[i]));
		g_free(s);
	}

	_value.hide();
	_list.show();
}

uint64_t SweepTimingWidget::value() const
{
	switch(_value_type)
	{
	case None:
		return 0;

	case MinMaxStep:
		return (uint64_t)_value.value();

	case List:
	{
		const int index = _list.currentIndex();
		return (index >= 0) ? _list.itemData(
			index).value<uint64_t>() : 0;
	}

	default:
		// Unexpected value type
		assert(0);
		return 0;
	}
}

void SweepTimingWidget::set_value(uint64_t value)
{
	_value.setValue(value);

	for (int i = 0; i < _list.count(); i++)
		if (value == _list.itemData(i).value<uint64_t>())
			_list.setCurrentIndex(i);
}

} // widgets
} // pv
Commit	Line	Data
1198b887 JH	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	#include "sweeptimingwidget.h"
	22
	23	#include <assert.h>
	24
	25	namespace pv {
	26	namespace widgets {
	27
	28	SweepTimingWidget::SweepTimingWidget(const char *suffix,
	29	QWidget *parent) :
	30	QWidget(parent),
	31	_layout(this),
1198b887 JH	32	_value(this),
	33	_list(this),
	34	_value_type(None)
	35	{
	36	setContentsMargins(0, 0, 0, 0);
	37
	38	_value.setDecimals(0);
	39	_value.setSuffix(QString::fromUtf8(suffix));
	40
	41	connect(&_list, SIGNAL(currentIndexChanged(int)),
	42	this, SIGNAL(value_changed()));
	43	connect(&_value, SIGNAL(editingFinished()),
	44	this, SIGNAL(value_changed()));
	45
	46	setLayout(&_layout);
	47	_layout.setMargin(0);
1198b887 JH	48	_layout.addWidget(&_list);
	49	_layout.addWidget(&_value);
	50
	51	show_none();
	52	}
	53
	54	void SweepTimingWidget::show_none()
	55	{
	56	_value_type = None;
1198b887 JH	57	_value.hide();
	58	_list.hide();
	59	}
	60
	61	void SweepTimingWidget::show_min_max_step(uint64_t min, uint64_t max,
	62	uint64_t step)
	63	{
	64	_value_type = MinMaxStep;
	65
	66	_value.setRange(min, max);
	67	_value.setSingleStep(step);
	68
1198b887 JH	69	_value.show();
	70	_list.hide();
	71	}
	72
	73	void SweepTimingWidget::show_list(const uint64_t *vals, size_t count)
	74	{
	75	_value_type = List;
	76
	77	_list.clear();
	78	for (size_t i = 0; i < count; i++)
	79	{
	80	char *const s = sr_samplerate_string(vals[i]);
	81	_list.addItem(QString::fromUtf8(s),
	82	qVariantFromValue(vals[i]));
	83	g_free(s);
	84	}
	85
1198b887 JH	86	_value.hide();
	87	_list.show();
	88	}
	89
	90	uint64_t SweepTimingWidget::value() const
	91	{
	92	switch(_value_type)
	93	{
	94	case None:
1198b887 JH	95	return 0;
	96
	97	case MinMaxStep:
	98	return (uint64_t)_value.value();
	99
	100	case List:
	101	{
	102	const int index = _list.currentIndex();
	103	return (index >= 0) ? _list.itemData(
	104	index).value<uint64_t>() : 0;
	105	}
	106
	107	default:
	108	// Unexpected value type
	109	assert(0);
	110	return 0;
	111	}
	112	}
	113
	114	void SweepTimingWidget::set_value(uint64_t value)
	115	{
1198b887 JH	116	_value.setValue(value);
	117
	118	for (int i = 0; i < _list.count(); i++)
	119	if (value == _list.itemData(i).value<uint64_t>())
	120	_list.setCurrentIndex(i);
	121	}
	122
	123	} // widgets
	124	} // pv