pulsatingscience.cpp

/******************************************************************************
 *   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"
#include <QSettings>


#ifdef __APPLE__
#include "/System/Library/Frameworks/Carbon.framework/Versions/A/Headers/Carbon.h"
#endif

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

    QAction* animControl = ui.dockAnimControl->toggleViewAction();
    animControl->setStatusTip(tr("Toggle the animation control visibility"));
    animControl->setShortcut(QKeySequence(tr("Alt+A")));
    ui.menuView->addAction(animControl);

#ifdef __APPLE__
    ui.actionMenu_bar->setEnabled(false);
#endif

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

    // 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_pulseFlashesShortcut = new QShortcut(ui.actionPulseFlashes->shortcut(), this);
    m_pulseFlashesShortcut->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);
    m_fullscreenESCShortcut = new QShortcut(QKeySequence(Qt::Key_Escape), this);
    m_fullscreenESCShortcut->setEnabled(false);

    // register "hidden" demo mode shortcut for IYA2009 exhibition
    m_hiddenShortcut = new QShortcut(QKeySequence(Qt::SHIFT + Qt::ALT + Qt::Key_D), this);

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

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

    connect(ui.actionStop, SIGNAL(triggered()),
            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.actionPulseFlashes, SIGNAL(toggled(bool)),
            ui.pulsarGlWidget, SLOT(showPulseFlashes(bool)));

    connect(ui.pulsarGlWidget, SIGNAL(pulsarAnimationStep(double)),
            ui.pulseScopeWidget, SLOT(setMarker(double)), Qt::DirectConnection);

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

    connect(m_hiddenShortcut, SIGNAL(activated()),
            this, SLOT(toggleHiddenDemoMode()));

    // prepare inactivity timer
    saveOrRestoreInitialAnimationSettings();
    m_inactivityTimer = new QTimer(this);
    connect(m_inactivityTimer, SIGNAL(timeout()), this, SLOT(userInactivityCallback()));

    // restore previously saved window and splitter layout
    QCoreApplication::setOrganizationName("Max-Planck-Insitut für Gravitationsphysik");
    QCoreApplication::setOrganizationDomain("aei.mpg.de");
    QCoreApplication::setApplicationName("Pulsating Science");
    QSettings settings;

    restoreGeometry(settings.value("windowGeometry").toByteArray());
    restoreState(settings.value("windowState").toByteArray());
    ui.splitter->restoreState(settings.value("splitterSizes").toByteArray());

    // restore view features
    ui.actionPermanent_orbits->setChecked(settings.value("viewOrbitalPlanes", m_permanentOrbits).toBool());
    ui.actionRotationAxes->setChecked(settings.value("viewRotationAxes", m_rotationAxesVisible).toBool());
    ui.actionPulseFlashes->setChecked(settings.value("viewPulseFlashes", m_pulseFlashesVisible).toBool());
}

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_pulseFlashesShortcut) {
        m_pulseFlashesShortcut->disconnect();
        delete m_pulseFlashesShortcut;
    }

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

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

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

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

    if(m_inactivityTimer) {
        delete m_inactivityTimer;
    }
}

void PulsatingScience::closeEvent(QCloseEvent *event)
{
    if(m_hiddenDemoModeActivated) {
        event->ignore();
    }
    else {
        // save window and splitter layout
        QSettings settings;
        settings.setValue("windowGeometry", saveGeometry());
        settings.setValue("windowState", saveState());
        settings.setValue("splitterSizes", ui.splitter->saveState());

        // save view features
        settings.setValue("viewOrbitalPlanes", m_permanentOrbits);
        settings.setValue("viewRotationAxes", m_rotationAxesVisible);
        settings.setValue("viewPulseFlashes", m_pulseFlashesVisible);

        event->accept();
    }
}

void PulsatingScience::on_sliderLHOAngle_valueChanged(int value)
{
    ui.pulsarGlWidget->setLHOAngle(value);
    ui.lcdLHOAngle->display(QString::number(value));
}

void PulsatingScience::on_sliderLLOAngle_valueChanged(int value)
{
    ui.pulsarGlWidget->setLLOAngle(value);
    ui.lcdLLOAngle->display(QString::number(value));
}

void PulsatingScience::on_sliderVirgoAngle_valueChanged(int value)
{
    ui.pulsarGlWidget->setVirgoAngle(value);
    ui.lcdVirgoAngle->display(QString::number(value));
}

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

void PulsatingScience::on_sliderSourceInclination_valueChanged(int value)
{
    ui.pulsarGlWidget->setSourceInclination(value);
    ui.lcdSourceInclination->display(QString::number(value));
}

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::pulseFlashesToggled() {
    if(m_pulseFlashesVisible) {
        on_actionPulseFlashes_toggled(false);
        ui.actionPulseFlashes->setChecked(false);
    }
    else {
        on_actionPulseFlashes_toggled(true);
        ui.actionPulseFlashes->setChecked(true);
    }
}

void PulsatingScience::on_actionPulseFlashes_toggled(bool checked) {
    m_pulseFlashesVisible = 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_pulseFlashesShortcut->disconnect();
        m_pulseFlashesShortcut->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_pulseFlashesShortcut->setEnabled(true);
        connect(m_pulseFlashesShortcut, SIGNAL(activated()), this, SLOT(pulseFlashesToggled()));
        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);
#ifndef __APPLE__
        if(m_menuBarVisible) {
            on_actionMenu_bar_toggled(false);
            // keep visibility setting
            m_menuBarVisible = true;
        }
#endif
        if(m_statusBarVisible) ui.statusbar->hide();
        if(m_animControlVisible && !m_animControlFloating) {
            ui.dockAnimControl->hide();
            // keep visibility setting
            m_animControlVisible = true;
        }

        m_fullscreenESCShortcut->setEnabled(true);
        connect(m_fullscreenESCShortcut, SIGNAL(activated()), this, SLOT(fullscreenToggled()));
    }
    else {
        window()->setWindowState(windowState() & ~Qt::WindowFullScreen);
        setBackgroundRole(QPalette::Window);
#ifndef __APPLE__
        if(m_menuBarVisible) on_actionMenu_bar_toggled(true);
#endif
        if(m_statusBarVisible) ui.statusbar->show();
        if(m_animControlVisible && !m_animControlFloating) ui.dockAnimControl->show();

        m_fullscreenESCShortcut->disconnect();
        m_fullscreenESCShortcut->setEnabled(false);
    }
}

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_actionHelp_triggered()
{
    PulsatingScienceHelp help(this);
    help.exec();
}

void PulsatingScience::on_actionWebsite_triggered()
{
    QDesktopServices::openUrl(QUrl("http://www.aei.mpg.de"));
}

void PulsatingScience::on_actionAbout_triggered()
{
    QString content = "<b>%1</b><br>"
            "%2<br>"
            "<br>"
            "%3: Oliver Bock<br>"
            "%4: Benjamin Knispel<br>"
            "<br>"
            "%5<br>"
            "(%6 ESO/IDA/Danish 1.5m - R.Gendler, J-E. Ovaldsen, C. Th&ouml;ne, C. Feron)<br>"
            "<br>"
            "%7: GNU General Public License v3<br>"
            "<br>"
            "Copyright &copy; 2009-2013 %8";

    content = content.arg(
                tr("Pulsating Science"),
                tr("International Year of Astronomy 2009"),
                tr("Author"),
                tr("Consultant"),
                tr("Background image: The Carina Nebula"),
                tr("Courtesy of"),
                tr("License"),
                tr("Max Planck Institute for Gravitational Physics"));

    QMessageBox::about(this, tr("About \"Pulsating Science\""), content);
}

void PulsatingScience::toggleHiddenDemoMode()
{
    if(m_hiddenDemoModeActivated) {
#ifdef __APPLE__
        window()->setWindowFlags(windowFlags()
                                 & ~Qt::FramelessWindowHint
                                 & ~Qt::WindowStaysOnTopHint);
        window()->showNormal();
#endif
        // show Menubar & Dock
        on_actionMenu_bar_toggled(true);
        ui.actionMenu_bar->setChecked(true);
        window()->setWindowState(windowState() & ~Qt::WindowFullScreen);
        ui.dockAnimControl->setFeatures(QDockWidget::DockWidgetClosable
                                        | QDockWidget::DockWidgetMovable
                                        | QDockWidget::DockWidgetFloatable);
        m_inactivityTimer->stop();
        m_hiddenDemoModeActivated = false;
    }
    else {
#ifdef __APPLE__
        window()->setWindowFlags(windowFlags()
                                 | Qt::FramelessWindowHint
                                 | Qt::WindowStaysOnTopHint);
        window()->showMaximized();
#endif
        // hide Menubar & Dock
        on_actionMenu_bar_toggled(false);
        ui.actionMenu_bar->setChecked(false);
        window()->setWindowState(windowState() | Qt::WindowFullScreen);
        ui.dockAnimControl->setFeatures(QDockWidget::NoDockWidgetFeatures);
        m_inactivityTimer->start(600000);
        m_hiddenDemoModeActivated = true;
    }
}

bool PulsatingScience::eventFilter(QObject *obj, QEvent *event)
{
    if(event->type() == QEvent::MouseButtonPress) {
        userActivity();
    }

    // return original event (we don't want to change any behavior)
    return QObject::eventFilter(obj, event);
}

void PulsatingScience::userActivity()
{
    if(m_hiddenDemoModeActivated) {
        // restart existing timer
        m_inactivityTimer->start();
    }
}

void PulsatingScience::userInactivityCallback()
{
    saveOrRestoreInitialAnimationSettings();
}

void PulsatingScience::saveOrRestoreInitialAnimationSettings()
{
    static bool initialized = false;

    static int sliderLHOAngle;
    static int sliderLLOAngle;
    static int sliderVirgoAngle;
    static int sliderPulsarSpinAxisInclination;
    static int sliderSourceInclination;

    static double cameraAngleH;
    static double cameraAngleV;
    static double cameraZoom;

    if(initialized) {
        // restore intial settings
        ui.sliderLHOAngle->setValue(sliderLHOAngle);
        ui.sliderLLOAngle->setValue(sliderLLOAngle);
        ui.sliderPulsarSpinAxisInclination->setValue(sliderPulsarSpinAxisInclination);
        ui.sliderVirgoAngle->setValue(sliderVirgoAngle);
        ui.sliderSourceInclination->setValue(sliderSourceInclination);
        ui.pulsarGlWidget->resetCameraPosition(cameraAngleH, cameraAngleV, cameraZoom);
    }
    else {
        // save initial settings
        sliderLHOAngle = ui.sliderLHOAngle->value();
        sliderLLOAngle = ui.sliderLLOAngle->value();
        sliderPulsarSpinAxisInclination = ui.sliderPulsarSpinAxisInclination->value();
        sliderVirgoAngle = ui.sliderVirgoAngle->value();
        sliderSourceInclination = ui.sliderSourceInclination->value();
        ui.pulsarGlWidget->getCameraPosition(cameraAngleH, cameraAngleV, cameraZoom);
        initialized = true;
    }
}