/*
	This file is part of EqualizerAPO, a system-wide equalizer.
	Copyright (C) 2015  Jonas Thedering

	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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "DelayFilterGUI.h"
#include "ui_DelayFilterGUI.h"

static const double dialSteps = 1000;
static const double dialMin = 1.0;
static const double dialMax = 10000.0;

DelayFilterGUI::DelayFilterGUI(double delay, bool isMs) :
	ui(new Ui::DelayFilterGUI)
{
	ui->setupUi(this);

	ui->unitComboBox->setCurrentIndex(isMs ? 0 : 1);
	ui->delaySpinBox->setValue(delay);
}

DelayFilterGUI::~DelayFilterGUI()
{
	delete ui;
}

void DelayFilterGUI::store(QString& command, QString& parameters)
{
	command = "Delay";
	parameters = QString("%0").arg(ui->delaySpinBox->value());
	if(ui->unitComboBox->currentIndex() == 0)
		parameters += " ms";
	else
		parameters += " samples";
}

void DelayFilterGUI::on_unitComboBox_currentIndexChanged(int index)
{
	ui->delaySpinBox->setSuffix(index == 0 ? tr(" ms") : tr(" samples"));
	ui->delaySpinBox->setDecimals(index == 0 ? 2 : 0);

	emit updateModel();
}

void DelayFilterGUI::on_delayDial_valueChanged(int value)
{
	ui->delaySpinBox->setValue(pow(dialMax / dialMin, value / dialSteps) * dialMin);
}

void DelayFilterGUI::on_delaySpinBox_valueChanged(double value)
{
	bool previousValue = ui->delayDial->blockSignals(true);
	ui->delayDial->setValue(round(dialSteps * log(value / dialMin) / log(dialMax / dialMin)));
	ui->delayDial->blockSignals(previousValue);

	emit updateModel();
}
