main.cpp

QStars is a Qt-based screen saver. It displays an image within a field of moving stars.

// Copyright (C) 2004, 2005 Andi Peredri <[e-mail]>

#include <qapplication.h>
#include <qcheckbox.h>
#include <qdatetimeedit.h>
#include <qlabel.h>
#include <qsettings.h>
#include <qslider.h>
#include <qtabdialog.h>
#include <qvbox.h>
#include <qvgroupbox.h>

#include "mainwindow.h"
#include "vroot.h"


// Main ---------------------------------------------------------------------

int main(int argc, char** argv)
{
    QApplication app(argc, argv);

    QString mode = "-demo";
    if(app.argc() > 1) mode = app.argv()[1];

    WId wid = 0;

    if(mode == "-window-id" && app.argc() > 2)
	wid = QString(app.argv()[2]).toULong();
    else if(mode == "-root")
	wid = DefaultRootWindow(qt_xdisplay());

    if(mode == "-help")
    {
	qWarning("Usage: " +QString(app.argv()[0])+ " [options]\n"
		 "QStars Screensaver\n"
		 "Options:\n"
		 "  -help            Show help about options.\n"
		 "  -setup           Setup screen saver.\n"
		 "  -window-id wid   Run in the specified XWindow.\n"
		 "  -root            Run in the root XWindow.\n"
		 "  -demo            Start screen saver in demo mode. [default]\n");
    }
    else if(mode == "-setup")
    {
        QTime time;
	QSettings settings;
	settings.beginGroup("QStars");
	unsigned int density = settings.readNumEntry("Density", 50);
	unsigned int timeout = settings.readNumEntry("Timer", 30);
	unsigned int speed = settings.readNumEntry("Speed", 50);
	bool showasteroids = settings.readBoolEntry("ShowAsteroids", true);
	bool showgalaxies = settings.readBoolEntry("ShowGalaxies", true);
	bool showplanets = settings.readBoolEntry("ShowPlanets", true);
	bool showships = settings.readBoolEntry("ShowShips", true);

	QTabDialog dialog;
        dialog.setCancelButton();
	dialog.setCaption("QStars Setup");
	dialog.setIcon(QPixmap::fromMimeSource("qstars.png"));

	QVBox tab1(&dialog);
        tab1.setMargin(5);
	dialog.addTab(&tab1, "Setup");

	QGroupBox box1(2, Qt::Horizontal, "Parameters", &tab1);

	QLabel label1("Speed:", &box1);
	QSlider slider1(0, 100, 1, speed, Qt::Horizontal, &box1);
        slider1.setTickInterval(25);
	slider1.setTickmarks(QSlider::Left);

	QLabel label2("Stars Density:", &box1);
	QSlider slider2(0, 100, 1, density, Qt::Horizontal, &box1);
        slider2.setTickInterval(25);
	slider2.setTickmarks(QSlider::Left);

	QLabel label3("Cycle timer (min:sec): ", &box1);
	QTimeEdit editor(time.addSecs(timeout), &box1);
        editor.setAutoAdvance(true);
	editor.setDisplay(QTimeEdit::Minutes | QTimeEdit::Seconds);

	QVGroupBox box2("Objects", &tab1);

	QCheckBox check1("Show Galaxies", &box2);
	check1.setChecked(showgalaxies);
	QCheckBox check2("Show Ships", &box2);
	check2.setChecked(showships);
	QCheckBox check3("Show Planets", &box2);
	check3.setChecked(showplanets);
	QCheckBox check4("Show Asteroids", &box2);
	check4.setChecked(showasteroids);

	QVBox tab2(&dialog);
        tab2.setMargin(5);
	dialog.addTab(&tab2, "About");

	QVGroupBox box3("About", &tab2);
	QLabel label4("\nQStars Screen Saver Version 0.4\n\n"
		      "Copyright (C) 2004, 2005 Andi Peredri <[e-mail]>\n\n"
		      "Homepage: \thttp://qt.osdn.org.ua/qstars.html\n"
		      "License:  \tGNU General Public License", &box3);

	if(dialog.exec() == QDialog::Accepted)
	{
	    settings.writeEntry("Speed",         slider1.value());
	    settings.writeEntry("Density",       slider2.value());
	    settings.writeEntry("Timer",         time.secsTo(editor.time()));
	    settings.writeEntry("ShowGalaxies",  check1.isChecked());
	    settings.writeEntry("ShowShips",     check2.isChecked());
	    settings.writeEntry("ShowPlanets",   check3.isChecked());
	    settings.writeEntry("ShowAsteroids", check4.isChecked());
	}
    }
    else if(mode == "-window-id" || mode == "-demo" || mode == "-root")
    {
	MainWindow window(wid);
        window.show();
	app.setMainWidget(&window);
	return app.exec();
    }
    else
    {
	qWarning("Unknown option: " + mode +
		 "\nUse -help to get a list of available command line options.\n");
    }
    return 0;
}