transportwidget.cpp

/*
* Copyright (C) 2020 - 2023 Judd Niemann - All Rights Reserved.
* You may use, distribute and modify this code under the
* terms of the GNU Lesser General Public License, version 2.1
*
* You should have received a copy of GNU Lesser General Public License v2.1
* with this file. If not, please refer to: https://github.com/jniemann66/sndscope.git
*/

#include "transportwidget.h"

#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QLabel>
#include <QTime>
#include <QtGui>

TransportWidget::TransportWidget(QWidget *parent) : QWidget(parent)
{
	QVBoxLayout* mainLayout = new QVBoxLayout;
	QHBoxLayout* sliderLayout = new QHBoxLayout;
	QHBoxLayout* buttonLayout = new QHBoxLayout;

	slider = new QSlider(Qt::Horizontal);
	rtsButton = new QPushButton;
	playPauseButton = new QPushButton;
	auto set7SegStyle = [](QLCDNumber* l) {
        auto p = l->palette();

        p.setColor(QPalette::WindowText, QColor(0,255,255,255));
        p.setColor(QPalette::Window, QColor(0,10,10,192));
        p.setColor(QPalette::Dark, QColor(32,32,32));
        p.setColor(QPalette::Light, QColor(128,128,128));
        l->setAutoFillBackground(true);
        l->setPalette(p);
        l->setLineWidth(1);
        l->setFrameShape(QFrame::Panel);
        l->setFrameShadow(QFrame::Sunken);
    };

    hh = new QLCDNumber(2);
    mm = new QLCDNumber(2);
    ss = new QLCDNumber(2);
    ms = new QLCDNumber(3);

    set7SegStyle(hh);
    set7SegStyle(mm);
    set7SegStyle(ss);
    set7SegStyle(ms);

    hh->setDecMode();
    mm->setDecMode();
    ss->setDecMode();
    ms->setDecMode();
    hh->setSegmentStyle(QLCDNumber::Flat);
    mm->setSegmentStyle(QLCDNumber::Flat);
    ss->setSegmentStyle(QLCDNumber::Flat);
    ms->setSegmentStyle(QLCDNumber::Flat);


	setButtonsEnabled(false);

	playPauseButton->setIcon(QIcon{":/icons/play-solid.png"});
	rtsButton->setIcon(QIcon{":/icons/step-backward-solid.png"});

	sliderLayout->addWidget(slider);
	buttonLayout->addWidget(rtsButton);
	buttonLayout->addWidget(playPauseButton);
	buttonLayout->addStretch();
	buttonLayout->addWidget(hh);
	buttonLayout->addWidget(new QLabel(":"));
	buttonLayout->addWidget(mm);
	buttonLayout->addWidget(new QLabel(":"));
	buttonLayout->addWidget(ss);
	buttonLayout->addWidget(new QLabel("."));
	buttonLayout->addWidget(ms);

	mainLayout->addLayout(sliderLayout);
	mainLayout->addLayout(buttonLayout);

	connect(playPauseButton, &QPushButton::clicked, this, [this]{
		setPaused(!getPaused()); // toggle
		emit playPauseToggled(getPaused());
	});

	connect(rtsButton, &QPushButton::clicked, this, [this]{
		setPosition(0);
		emit returnToStartClicked();
	});

	connect(slider, &QSlider::sliderPressed, this, [this]{
		if(!paused) {
			emit playPauseToggled(true);
		}
	});

	connect(slider, &QSlider::sliderReleased, this, [this]{
		if(!paused) {
			emit playPauseToggled(false);
		}

		QTime time = QTime{0,0,0,0}.addMSecs(slider->value());
		hh->display(time.hour());
		mm->display(time.minute());
		ss->display(time.second());
		ms->display(time.msec());
		emit positionChangeRequested(slider->value());
	});

	setPaused(getPaused());

	setLayout(mainLayout);

	setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
}

bool TransportWidget::getPaused() const
{
	return paused;
}

void TransportWidget::setPaused(bool value)
{
	paused = value;
	if(paused) {
		playPauseButton->setIcon(QIcon{":/icons/play-solid.png"});
	} else {
		playPauseButton->setIcon(QIcon{":/icons/pause-solid.png"});
	}
}

void TransportWidget::setPosition(int milliseconds)
{
	QTime time = QTime{0,0,0,0}.addMSecs(milliseconds);
	hh->display(time.hour());
	mm->display(time.minute());
	ss->display(time.second());
	ms->display(time.msec());
	slider->setSliderPosition(milliseconds);
}

void TransportWidget::setLength(int milliseconds)
{
	slider->setMaximum(milliseconds);
}

int TransportWidget::heightForWidth(int width) const
{
	return width / 4;
}

void TransportWidget::setButtonsEnabled(bool value)
{
	rtsButton->setEnabled(value);
	playPauseButton->setEnabled(value);
}