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299 lines
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299 lines
10 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/life/life.doc:4 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Conway's Game of Life</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Conway's Game of Life</h1>
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<p>
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<hr>
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<p> Header file:
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<p> <pre>/****************************************************************************
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** $Id: qt/life.h 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. 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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#ifndef LIFE_H
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#define LIFE_H
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#include <<a href="qframe-h.html">ntqframe.h</a>>
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class LifeWidget : public <a href="ntqframe.html">TQFrame</a>
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{
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<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
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public:
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LifeWidget( int s = 10, TQWidget *parent = 0, const char *name = 0 );
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void setPoint( int i, int j );
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int maxCol() { return maxi; }
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int maxRow() { return maxj; }
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public slots:
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void nextGeneration();
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void clear();
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protected:
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virtual void paintEvent( <a href="qpaintevent.html">TQPaintEvent</a> * );
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virtual void mouseMoveEvent( <a href="qmouseevent.html">TQMouseEvent</a> * );
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virtual void mousePressEvent( <a href="qmouseevent.html">TQMouseEvent</a> * );
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virtual void resizeEvent( <a href="qresizeevent.html">TQResizeEvent</a> * );
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void mouseHandle( const <a href="ntqpoint.html">TQPoint</a> &pos );
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private:
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enum { MAXSIZE = 50, MINSIZE = 10, BORDER = 5 };
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bool cells[2][MAXSIZE + 2][MAXSIZE + 2];
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int current;
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int maxi, maxj;
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int pos2index( int x )
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{
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return ( x - BORDER ) / SCALE + 1;
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}
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int index2pos( int i )
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{
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return ( i - 1 ) * SCALE + BORDER;
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}
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int SCALE;
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};
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#endif // LIFE_H
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</pre>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/****************************************************************************
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** $Id: qt/life.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. 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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#include "life.h"
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#include <<a href="qpainter-h.html">ntqpainter.h</a>>
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#include <<a href="qdrawutil-h.html">ntqdrawutil.h</a>>
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#include <<a href="qcheckbox-h.html">ntqcheckbox.h</a>>
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#include <<a href="qevent-h.html">ntqevent.h</a>>
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#include <<a href="qapplication-h.html">ntqapplication.h</a>>
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// The main game of life widget
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<a name="f517"></a>LifeWidget::LifeWidget( int s, TQWidget *parent, const char *name )
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: <a href="ntqframe.html">TQFrame</a>( parent, name )
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{
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SCALE = s;
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maxi = maxj = 50;
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<a href="ntqwidget.html#setMinimumSize">setMinimumSize</a>( MINSIZE * SCALE + 2 * BORDER,
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MINSIZE * SCALE + 2 * BORDER );
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<a href="ntqwidget.html#setMaximumSize">setMaximumSize</a>( MAXSIZE * SCALE + 2 * BORDER,
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MAXSIZE * SCALE + 2 * BORDER );
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<a href="ntqwidget.html#setSizeIncrement">setSizeIncrement</a>( SCALE, SCALE);
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clear();
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<a href="ntqwidget.html#resize">resize</a>( maxi * SCALE + 2 * BORDER , maxj * SCALE + 2 * BORDER );
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}
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void <a name="f518"></a>LifeWidget::clear()
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{
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current = 0;
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for ( int t = 0; t < 2; t++ )
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for ( int i = 0; i < MAXSIZE + 2; i++ )
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for ( int j = 0; j < MAXSIZE + 2; j++ )
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cells[t][i][j] = FALSE;
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<a href="ntqwidget.html#repaint">repaint</a>();
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}
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// We assume that the size will never be beyond the maximum size set
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// this is not in general TRUE, but in practice it's good enough for
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// this program
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<a name="x1889"></a>void LifeWidget::<a href="ntqframe.html#resizeEvent">resizeEvent</a>( <a href="qresizeevent.html">TQResizeEvent</a> * e )
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{
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<a name="x1895"></a> maxi = (e-><a href="qresizeevent.html#size">size</a>().width() - 2 * BORDER) / SCALE;
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maxj = (e-><a href="qresizeevent.html#size">size</a>().height() - 2 * BORDER) / SCALE;
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}
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void <a name="f519"></a>LifeWidget::setPoint( int i, int j )
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{
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if ( i < 1 || i > maxi || j < 1 || j > maxi )
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return;
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cells[current][i][j] = TRUE;
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<a href="ntqwidget.html#repaint">repaint</a>( index2pos(i), index2pos(j), SCALE, SCALE, FALSE );
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}
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void <a name="f520"></a>LifeWidget::mouseHandle( const <a href="ntqpoint.html">TQPoint</a> &pos )
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{
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<a name="x1893"></a> int i = pos2index( pos.<a href="ntqpoint.html#x">x</a>() );
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<a name="x1894"></a> int j = pos2index( pos.<a href="ntqpoint.html#y">y</a>() );
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setPoint( i, j );
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}
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<a name="x1896"></a>void LifeWidget::<a href="ntqwidget.html#mouseMoveEvent">mouseMoveEvent</a>( <a href="qmouseevent.html">TQMouseEvent</a> *e )
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{
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<a name="x1891"></a> mouseHandle( e-><a href="qmouseevent.html#pos">pos</a>() );
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}
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<a name="x1897"></a>void LifeWidget::<a href="ntqwidget.html#mousePressEvent">mousePressEvent</a>( <a href="qmouseevent.html">TQMouseEvent</a> *e )
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{
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<a name="x1890"></a> if ( e-><a href="qmouseevent.html#button">button</a>() == TQMouseEvent::LeftButton )
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mouseHandle( e-><a href="qmouseevent.html#pos">pos</a>() );
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}
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void <a name="f521"></a>LifeWidget::nextGeneration()
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{
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for ( int i = 1; i <= MAXSIZE; i++ ) {
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for ( int j = 1; j <= MAXSIZE; j++ ) {
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int t = cells[current][i - 1][j - 1]
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+ cells[current][i - 1][j]
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+ cells[current][i - 1][j + 1]
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+ cells[current][i][j - 1]
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+ cells[current][i][j + 1]
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+ cells[current][i + 1][j - 1]
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+ cells[current][i + 1][j]
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+ cells[current][i + 1][j + 1];
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cells[!current][i][j] = ( t == 3 ||
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t == 2 && cells[current][i][j] );
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}
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}
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current = !current;
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<a href="ntqwidget.html#repaint">repaint</a>( FALSE ); // repaint without erase
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}
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<a name="x1888"></a>void LifeWidget::<a href="ntqframe.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">TQPaintEvent</a> * e )
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{
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<a name="x1892"></a> int starti = pos2index( e-><a href="qpaintevent.html#rect">rect</a>().left() );
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int stopi = pos2index( e-><a href="qpaintevent.html#rect">rect</a>().right() );
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int startj = pos2index( e-><a href="qpaintevent.html#rect">rect</a>().top() );
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int stopj = pos2index( e-><a href="qpaintevent.html#rect">rect</a>().bottom() );
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if (stopi > maxi)
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stopi = maxi;
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if (stopj > maxj)
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stopj = maxj;
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<a href="ntqpainter.html">TQPainter</a> paint( this );
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for ( int i = starti; i <= stopi; i++ ) {
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for ( int j = startj; j <= stopj; j++ ) {
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if ( cells[current][i][j] )
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<a href="ntqpainter.html#qDrawShadePanel">qDrawShadePanel</a>( &paint, index2pos( i ), index2pos( j ),
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SCALE - 1, SCALE - 1, colorGroup() );
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else if ( cells[!current][i][j] )
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<a href="ntqwidget.html#erase">erase</a>(index2pos( i ), index2pos( j ), SCALE - 1, SCALE - 1);
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}
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}
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<a href="ntqframe.html#drawFrame">drawFrame</a>( &paint );
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}
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</pre>
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<p> <hr>
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<p> Main:
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<p> <pre>/****************************************************************************
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** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. 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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#include "lifedlg.h"
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#include <<a href="qapplication-h.html">ntqapplication.h</a>>
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#include <stdlib.h>
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void usage()
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{
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<a href="ntqapplication.html#qWarning">tqWarning</a>( "Usage: life [-scale scale]" );
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}
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int main( int argc, char **argv )
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{
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<a href="ntqapplication.html">TQApplication</a> a( argc, argv );
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int scale = 10;
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for ( int i = 1; i < argc; i++ ){
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<a href="ntqstring.html">TQString</a> arg = argv[i];
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if ( arg == "-scale" )
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scale = atoi( argv[++i] );
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else {
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usage();
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exit(1);
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}
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}
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if ( scale < 2 )
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scale = 2;
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LifeDialog *life = new LifeDialog( scale );
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a.<a href="ntqapplication.html#setMainWidget">setMainWidget</a>( life );
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life-><a href="ntqwidget.html#setCaption">setCaption</a>("TQt Example - Life");
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life-><a href="ntqwidget.html#show">show</a>();
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return a.<a href="ntqapplication.html#exec">exec</a>();
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}
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</pre>
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<p>See also <a href="examples.html">Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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