/******************************************************************************
 *   Copyright (C) 2008 by Oliver Bock                                        *
 *   oliver.bock[AT]aei.mpg.de                                                *
 *                                                                            *
 *   This file is part of PulsatingScience.                                   *
 *                                                                            *
 *   PulsatingScience 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, version 3 of the License.               *
 *                                                                            *
 *   PulsatingScience 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 PulsatingScience. If not, see <http://www.gnu.org/licenses/>. *
 *                                                                            *
 ******************************************************************************/

#include "pulsatingscience.h"

PulsatingScience::PulsatingScience(QWidget *parent) : QMainWindow(parent)
{
	ui.setupUi(this);

	QAction* animControl = ui.dockAnimControl->toggleViewAction();
	animControl->setStatusTip("Toggle the animation control visibility");
	animControl->setShortcut(QKeySequence(Qt::ALT + Qt::Key_A));
	ui.menuView->addAction(animControl);

	// inital status (based on GUI)
	m_permanentOrbits = ui.actionPermanent_orbits->isChecked();
	m_rotationAxesVisible = ui.actionRotationAxes->isChecked();
    m_menuBarVisible = ui.actionMenu_bar->isChecked();
	m_statusBarVisible = ui.actionStatus_bar->isChecked();
	m_animControlVisible = true;
	m_animControlFloating = ui.dockAnimControl->isFloating();

	// register alternate shortcuts (will be enabled when menu is hidden)
	m_runShortcut = new QShortcut(ui.actionRun->shortcut(), this);
	m_runShortcut->setEnabled(false);
	m_pauseShortcut = new QShortcut(ui.actionPause->shortcut(), this);
	m_pauseShortcut->setEnabled(false);
	m_stopShortcut = new QShortcut(ui.actionStop->shortcut(), this);
	m_stopShortcut->setEnabled(false);
	m_permanentOrbitsShortcut = new QShortcut(ui.actionPermanent_orbits->shortcut(), this);
	m_permanentOrbitsShortcut->setEnabled(false);
	m_rotationAxesShortcut = new QShortcut(ui.actionRotationAxes->shortcut(), this);
	m_rotationAxesShortcut->setEnabled(false);
	m_menuBarShortcut = new QShortcut(ui.actionMenu_bar->shortcut(), this);
	m_menuBarShortcut->setEnabled(false);
	m_fullscreenShortcut = new QShortcut(ui.actionFullscreen->shortcut(), this);
	m_fullscreenShortcut->setEnabled(false);

	// establish object communications
	connect(ui.actionRun, SIGNAL(activated()),
			ui.pulsarGlWidget, SLOT(runAnimation()));

	connect(ui.actionPause, SIGNAL(activated()),
				ui.pulsarGlWidget, SLOT(pauseAnimation()));

	connect(ui.actionStop, SIGNAL(activated()),
				ui.pulsarGlWidget, SLOT(stopAnimation()));

	connect(ui.actionPermanent_orbits, SIGNAL(toggled(bool)),
				ui.pulsarGlWidget, SLOT(showOrbits(bool)));

	connect(ui.actionRotationAxes, SIGNAL(toggled(bool)),
				ui.pulsarGlWidget, SLOT(showRotationAxes(bool)));

	connect(ui.pulsarGlWidget, SIGNAL(pulsarSemiMajorAxisUpdated(double)),
				this, SLOT(updatePulsarSemiMajorAxisValue(double)));

	connect(ui.pulsarGlWidget, SIGNAL(pulsarAnimationStep(float)),
				ui.pulseScopeWidget, SLOT(markerStep(float)), Qt::DirectConnection);

	connect(ui.pulsarGlWidget, SIGNAL(pulsarAnimationReset()),
				ui.pulseScopeWidget, SLOT(markerReset()));

	connect(ui.pulsarGlWidget, SIGNAL(pulseProfileUpdated(const QVector<float>&)),
				ui.pulseScopeWidget, SLOT(drawCurve(const QVector<float>&)), Qt::DirectConnection);
}

PulsatingScience::~PulsatingScience()
{
	if(m_runShortcut) {
		m_runShortcut->disconnect();
		delete m_runShortcut;
	}

	if(m_pauseShortcut) {
		m_pauseShortcut->disconnect();
		delete m_pauseShortcut;
	}

	if(m_stopShortcut) {
		m_stopShortcut->disconnect();
		delete m_stopShortcut;
	}

	if(m_permanentOrbitsShortcut) {
		m_permanentOrbitsShortcut->disconnect();
		delete m_permanentOrbitsShortcut;
	}

	if(m_rotationAxesShortcut) {
		m_rotationAxesShortcut->disconnect();
		delete m_rotationAxesShortcut;
	}

	if(m_menuBarShortcut) {
		m_menuBarShortcut->disconnect();
		delete m_menuBarShortcut;
	}

	if(m_fullscreenShortcut) {
		m_fullscreenShortcut->disconnect();
		delete m_fullscreenShortcut;
	}
}

void PulsatingScience::on_pushRun_clicked()
{
	if(ui.pushRun->isEnabled()) {
		ui.pushRun->setEnabled(false);
		ui.pushPause->setEnabled(true);
		ui.pushStop->setEnabled(true);
	}
	else {
		ui.pushRun->setEnabled(true);
		ui.pushPause->setEnabled(false);
		ui.pushStop->setEnabled(false);
	}
}

void PulsatingScience::on_pushPause_clicked()
{
	ui.pushRun->setEnabled(true);
	ui.pushPause->setEnabled(false);
	ui.pushStop->setEnabled(true);
}

void PulsatingScience::on_pushStop_clicked()
{
	ui.pushRun->setEnabled(true);
	ui.pushPause->setEnabled(false);
	ui.pushStop->setEnabled(false);
}

void PulsatingScience::on_radioCompanionWD_toggled(bool checked)
{
	if(checked) {
		ui.pulsarGlWidget->setCompanionMass(0.6f);
		ui.lcdCompanionMass->display(QString::number(0.6f, 'f', 1));
	}
}

void PulsatingScience::on_radioCompanionSun_toggled(bool checked)
{
	if(checked) {
		ui.pulsarGlWidget->setCompanionMass(1.0f);
		ui.lcdCompanionMass->display(QString::number(1.0f, 'f', 1));
	}
}

void PulsatingScience::on_radioCompanionNS_toggled(bool checked)
{
	if(checked) {
		ui.pulsarGlWidget->setCompanionMass(1.4f);
		ui.lcdCompanionMass->display(QString::number(1.4f, 'f', 1));
	}
}

void PulsatingScience::on_sliderPulsarMass_valueChanged(int value)
{
	ui.pulsarGlWidget->setPulsarMass(value * 0.1f);
	ui.lcdPulsarMass->display(QString::number(value * 0.1f, 'f', 1));
}

void PulsatingScience::on_sliderPulsarSpinFrequency_valueChanged(int value)
{
	ui.pulsarGlWidget->setPulsarSpinFrequency(value * 0.1f);
	ui.lcdPulsarSpinFrequency->display(QString::number(value * 0.1f, 'f', 1));
}

void PulsatingScience::on_sliderPulsarSpinAxisInclination_valueChanged(int value)
{
	ui.pulsarGlWidget->setPulsarSpinAxisInclination(value);
	ui.lcdPulsarSpinAxisInclination->display(QString::number(value));
}

void PulsatingScience::on_sliderPulsarMagneticAxisInclination_valueChanged(int value)
{
	ui.pulsarGlWidget->setPulsarMagneticAxisInclination(value);
	ui.lcdPulsarMagneticAxisInclination->display(QString::number(value));
}

void PulsatingScience::on_sliderPulsarSemiMajorAxis_valueChanged(int value)
{
	ui.pulsarGlWidget->setPulsarSemiMajorAxis(value * 0.001f);
	ui.lcdPulsarSemiMajorAxis->display(QString::number(value * 0.001f, 'f', 1));
	ui.lcdPulsarSemiMajorAxis->setStyleSheet("color: black");
}

void PulsatingScience::permanentOrbitsToggled() {
	if(m_permanentOrbits) {
		on_actionPermanent_orbits_toggled(false);
		ui.actionPermanent_orbits->setChecked(false);
	}
	else {
		on_actionPermanent_orbits_toggled(true);
		ui.actionPermanent_orbits->setChecked(true);
	}
}

void PulsatingScience::on_actionPermanent_orbits_toggled(bool checked) {
	m_permanentOrbits = checked;
}

void PulsatingScience::rotationAxesToggled() {
	if(m_rotationAxesVisible) {
		on_actionRotationAxes_toggled(false);
		ui.actionRotationAxes->setChecked(false);
	}
	else {
		on_actionRotationAxes_toggled(true);
		ui.actionRotationAxes->setChecked(true);
	}
}

void PulsatingScience::on_actionRotationAxes_toggled(bool checked) {
	m_rotationAxesVisible = checked;
}

void PulsatingScience::menuBarToggled()
{
	if(ui.menuBar->isVisible()) {
		on_actionMenu_bar_toggled(false);
		ui.actionMenu_bar->setChecked(false);
	}
	else if(!ui.actionFullscreen->isChecked()) {
		// allow menu bar only when NOT in fullscreen mode
		on_actionMenu_bar_toggled(true);
		ui.actionMenu_bar->setChecked(true);
	}
}

void PulsatingScience::on_actionMenu_bar_toggled(bool checked)
{
	if(checked) {
		ui.menuBar->show();
		m_menuBarVisible = true;

		// deactivate alternate shortcuts
		m_runShortcut->disconnect();
		m_runShortcut->setEnabled(false);
		m_pauseShortcut->disconnect();
		m_pauseShortcut->setEnabled(false);
		m_stopShortcut->disconnect();
		m_stopShortcut->setEnabled(false);
		m_permanentOrbitsShortcut->disconnect();
		m_permanentOrbitsShortcut->setEnabled(false);
		m_rotationAxesShortcut->disconnect();
		m_rotationAxesShortcut->setEnabled(false);
		m_fullscreenShortcut->disconnect();
		m_fullscreenShortcut->setEnabled(false);
		m_menuBarShortcut->disconnect();
		m_menuBarShortcut->setEnabled(false);
	}
	else {
		ui.menuBar->hide();
		m_menuBarVisible = false;

		// activate alternate shortcuts
		m_runShortcut->setEnabled(true);
		connect(m_runShortcut, SIGNAL(activated()), ui.pulsarGlWidget, SLOT(runAnimation()));
		m_pauseShortcut->setEnabled(true);
		connect(m_pauseShortcut, SIGNAL(activated()), ui.pulsarGlWidget, SLOT(pauseAnimation()));
		m_stopShortcut->setEnabled(true);
		connect(m_stopShortcut, SIGNAL(activated()), ui.pulsarGlWidget, SLOT(stopAnimation()));
		m_permanentOrbitsShortcut->setEnabled(true);
		connect(m_permanentOrbitsShortcut, SIGNAL(activated()), this, SLOT(permanentOrbitsToggled()));
		m_rotationAxesShortcut->setEnabled(true);
		connect(m_rotationAxesShortcut, SIGNAL(activated()), this, SLOT(rotationAxesToggled()));
		m_fullscreenShortcut->setEnabled(true);
		connect(m_fullscreenShortcut, SIGNAL(activated()), this, SLOT(fullscreenToggled()));
		m_menuBarShortcut->setEnabled(true);
		connect(m_menuBarShortcut, SIGNAL(activated()), this, SLOT(menuBarToggled()));
	}
}

void PulsatingScience::fullscreenToggled()
{
	if((windowState() & Qt::WindowFullScreen) > 0) {
		on_actionFullscreen_toggled(false);
		ui.actionFullscreen->setChecked(false);
	}
	else {
		on_actionFullscreen_toggled(true);
		ui.actionFullscreen->setChecked(true);
	}
}

void PulsatingScience::on_actionFullscreen_toggled(bool checked)
{
	if(checked) {
		window()->setWindowState(windowState() | Qt::WindowFullScreen);
		// assuming text being black
		setBackgroundRole(QPalette::Text);

		if(m_menuBarVisible) {
			on_actionMenu_bar_toggled(false);
			// keep visibility setting
			m_menuBarVisible = true;
		}
		if(m_statusBarVisible) ui.statusbar->hide();
		if(m_animControlVisible && !m_animControlFloating) {
			ui.dockAnimControl->hide();
			// keep visibility setting
			m_animControlVisible = true;
		}
	}
	else {
		window()->setWindowState(windowState() & ~Qt::WindowFullScreen);
		setBackgroundRole(QPalette::Window);

		if(m_menuBarVisible) on_actionMenu_bar_toggled(true);
		if(m_statusBarVisible) ui.statusbar->show();
		if(m_animControlVisible && !m_animControlFloating) ui.dockAnimControl->show();
	}
}

void PulsatingScience::on_actionStatus_bar_toggled(bool checked)
{
	if(checked) {
		ui.statusbar->show();
		m_statusBarVisible = true;
	}
	else {
		ui.statusbar->hide();
		m_statusBarVisible = false;
	}
}

void PulsatingScience::on_dockAnimControl_visibilityChanged(bool visible) {
	m_animControlVisible = visible;
}

void PulsatingScience::on_dockAnimControl_topLevelChanged(bool topLevel) {
	m_animControlFloating = topLevel;
}

void PulsatingScience::on_actionAbout_activated()
{
	QMessageBox::about(this, "About",
			"<b>Pulsating Science</b><br>"
			"International Year of Astronomy 2009<br><br>"
			"Authors: Oliver Bock, Benjamin Knispel<br><br>"
			"Background image: The Carina Nebula<br>"
			"(Courtesy of ESO/IDA/Danish 1.5 m/R.Gendler, J-E. Ovaldsen, C. Th&ouml;ne and C. Feron)<br><br>"
			"License: GNU General Public License (Version 3)<br><br>"
			"Copyright &copy; 2009 "
			"<a href=\"http://www.aei.mpg.de\">Max-Planck-Institut f&uuml;r Gravitationsphysik</a>");
}

void PulsatingScience::updatePulsarSemiMajorAxisValue(double value)
{
	ui.sliderPulsarSemiMajorAxis->setValue(value * 1000.0);

	if((int)value <= 1 || (int)value >= 20) {
		if((int)value < 1 || (int)value > 20) {
			ui.lcdPulsarSemiMajorAxis->setStyleSheet("color: red");
		}
		else {
			ui.lcdPulsarSemiMajorAxis->setStyleSheet("color: black");
		}
		ui.lcdPulsarSemiMajorAxis->display(QString::number(value, 'f', 1));
	}
}