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121 lines
2.8 KiB
121 lines
2.8 KiB
/***************************************************************************
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* $Id$
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**
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* Definition of something or other
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**
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* Created : 979899
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**
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* Copyright (C) 1997 by Trolltech AS. All rights reserved.
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**
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* This file is part of an example program for Qt. This example
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* program may be used, distributed and modified without limitation.
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**
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****************************************************************************/
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import org.trinitydesktop.qt.*;
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import java.util.Random;
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class Forever extends TQWidget
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{
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static final int numColors = 120;
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private int rectangles;
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private TQColor[] colors = new TQColor[numColors];
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private Random generator = new Random(System.currentTimeMillis());
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//
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// Forever - a widget that draws rectangles forever.
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//
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//
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// Constructs a Forever widget.
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//
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Forever( )
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{
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this(null, null);
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}
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Forever( TQWidget parent, String name )
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{
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super( parent, name );
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for (int a=0; a<numColors; a++) {
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colors[a] = new TQColor( generator.nextInt(255),
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generator.nextInt(255),
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generator.nextInt(255) );
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}
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rectangles = 0;
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startTimer( 0 ); // run continuous timer
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TQTimer counter = new TQTimer( this );
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connect( counter, TQ_SIGNAL("timeout()"),
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this, TQ_SLOT("updateCaption()") );
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counter.start( 1000 );
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}
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void updateCaption()
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{
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String s = "Qt Example - Forever - " + rectangles + " rectangles/second";
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rectangles = 0;
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setCaption( s );
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}
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//
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// Handles paint events for the Forever widget.
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//
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protected void paintEvent( TQPaintEvent e )
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{
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TQPainter paint = new TQPainter( this ); // painter object
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int w = width();
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int h = height();
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if(w <= 0 || h <= 0)
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return;
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paint.setPen( NoPen ); // do not draw outline
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paint.setBrush( colors[generator.nextInt(numColors)]);// set random brush color
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// TQPoint p1 = new TQPoint( generator.nextInt(w), generator.nextInt(h)); // p1 = top left
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// TQPoint p2 = new TQPoint( generator.nextInt(w), generator.nextInt(h)); // p2 = bottom right
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// TQRect r = new TQRect( p1, p2 );
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// paint.drawRect( r ); // draw filled rectangle
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paint.drawRect( generator.nextInt(w), generator.nextInt(h),
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generator.nextInt(w), generator.nextInt(h) ); // draw filled rectangle
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}
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//
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// Handles timer events for the Forever widget.
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//
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protected void timerEvent( TQTimerEvent e )
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{
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for ( int i=0; i<100; i++ ) {
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repaint( false ); // repaint, don't erase
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rectangles++;
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}
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}
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//
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// Create and display Forever widget.
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//
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public static void main( String[] args )
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{
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TQApplication a = new TQApplication( args ); // create application object
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Forever always = new Forever(); // create widget
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a.setMainWidget( always ); // set as main widget
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always.setCaption("Qt Example - Forever");
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always.show(); // show widget
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a.exec(); // run event loop
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return;
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}
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static {
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qtjava.initialize();
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}
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}
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