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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:2029 -->
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| 6 | <title>t13/gamebrd.cpp Example File</title>
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| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
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| 20 | <font color="#004faf">Home</font></a>
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| 22 | <font color="#004faf">All Classes</font></a>
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 26 | <font color="#004faf">Annotated</font></a>
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t13/gamebrd.cpp Example File</h1>
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| 33 |
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| 34 |
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| 35 | <pre>/****************************************************************
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| 36 | **
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| 37 | ** Implementation of GameBoard class, Qt tutorial 13
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| 38 | **
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| 39 | ****************************************************************/
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| 40 |
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| 41 | #include "gamebrd.h"
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| 42 |
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| 43 | #include <<a href="qfont-h.html">qfont.h</a>>
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| 44 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 45 | #include <<a href="qlabel-h.html">qlabel.h</a>>
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| 46 | #include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
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| 47 | #include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>>
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| 48 | #include <<a href="qlayout-h.html">qlayout.h</a>>
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| 49 |
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| 50 | #include "lcdrange.h"
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| 51 | #include "cannon.h"
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| 52 |
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| 53 | <a name="f109"></a>GameBoard::GameBoard( <a href="qwidget.html">QWidget</a> *parent, const char *name )
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| 54 | : <a href="qwidget.html">QWidget</a>( parent, name )
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| 55 | {
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| 56 | <a href="qpushbutton.html">QPushButton</a> *quit = new <a href="qpushbutton.html">QPushButton</a>( "&Quit", this, "quit" );
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| 57 | quit-><a href="qwidget.html#setFont">setFont</a>( QFont( "Times", 18, QFont::Bold ) );
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| 58 |
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| 59 | <a href="qobject.html#connect">connect</a>( quit, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()) );
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| 60 |
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| 61 | LCDRange *angle = new LCDRange( "ANGLE", this, "angle" );
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| 62 | angle->setRange( 5, 70 );
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| 63 |
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| 64 | LCDRange *force = new LCDRange( "FORCE", this, "force" );
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| 65 | force->setRange( 10, 50 );
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| 66 |
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| 67 | cannonField = new CannonField( this, "cannonField" );
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| 68 |
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| 69 | <a href="qobject.html#connect">connect</a>( angle, SIGNAL(valueChanged(int)),
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| 70 | cannonField, SLOT(setAngle(int)) );
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| 71 | <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(angleChanged(int)),
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| 72 | angle, SLOT(setValue(int)) );
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| 73 |
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| 74 | <a href="qobject.html#connect">connect</a>( force, SIGNAL(valueChanged(int)),
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| 75 | cannonField, SLOT(setForce(int)) );
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| 76 | <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(forceChanged(int)),
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| 77 | force, SLOT(setValue(int)) );
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| 78 |
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| 79 | <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(hit()),
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| 80 | this, SLOT(hit()) );
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| 81 | <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(missed()),
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| 82 | this, SLOT(missed()) );
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| 83 |
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| 84 | <a href="qpushbutton.html">QPushButton</a> *shoot = new <a href="qpushbutton.html">QPushButton</a>( "&Shoot", this, "shoot" );
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| 85 | shoot-><a href="qwidget.html#setFont">setFont</a>( QFont( "Times", 18, QFont::Bold ) );
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| 86 |
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| 87 | <a href="qobject.html#connect">connect</a>( shoot, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), SLOT(fire()) );
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| 88 | <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(canShoot(bool)),
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| 89 | shoot, SLOT(<a href="qwidget.html#setEnabled">setEnabled</a>(bool)) );
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| 90 |
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| 91 | QPushButton *restart
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| 92 | = new <a href="qpushbutton.html">QPushButton</a>( "&New Game", this, "newgame" );
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| 93 | restart->setFont( QFont( "Times", 18, QFont::Bold ) );
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| 94 |
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| 95 | <a href="qobject.html#connect">connect</a>( restart, SIGNAL(clicked()), this, SLOT(newGame()) );
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| 96 |
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| 97 | hits = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, this, "hits" );
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| 98 | shotsLeft = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, this, "shotsleft" );
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| 99 | <a href="qlabel.html">QLabel</a> *hitsL = new <a href="qlabel.html">QLabel</a>( "HITS", this, "hitsLabel" );
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| 100 | QLabel *shotsLeftL
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| 101 | = new <a href="qlabel.html">QLabel</a>( "SHOTS LEFT", this, "shotsleftLabel" );
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| 102 |
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| 103 | <a href="qgridlayout.html">QGridLayout</a> *grid = new <a href="qgridlayout.html">QGridLayout</a>( this, 2, 2, 10 );
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| 104 | grid-><a href="qgridlayout.html#addWidget">addWidget</a>( quit, 0, 0 );
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| 105 | grid-><a href="qgridlayout.html#addWidget">addWidget</a>( cannonField, 1, 1 );
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| 106 | grid-><a href="qgridlayout.html#setColStretch">setColStretch</a>( 1, 10 );
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| 107 |
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| 108 | <a href="qvboxlayout.html">QVBoxLayout</a> *leftBox = new <a href="qvboxlayout.html">QVBoxLayout</a>;
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| 109 | grid-><a href="qgridlayout.html#addLayout">addLayout</a>( leftBox, 1, 0 );
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| 110 | leftBox-><a href="qboxlayout.html#addWidget">addWidget</a>( angle );
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| 111 | leftBox-><a href="qboxlayout.html#addWidget">addWidget</a>( force );
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| 112 |
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| 113 | <a href="qhboxlayout.html">QHBoxLayout</a> *topBox = new <a href="qhboxlayout.html">QHBoxLayout</a>;
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| 114 | grid-><a href="qgridlayout.html#addLayout">addLayout</a>( topBox, 0, 1 );
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| 115 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( shoot );
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| 116 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( hits );
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| 117 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( hitsL );
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| 118 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( shotsLeft );
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| 119 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( shotsLeftL );
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| 120 | topBox-><a href="qboxlayout.html#addStretch">addStretch</a>( 1 );
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| 121 | topBox-><a href="qboxlayout.html#addWidget">addWidget</a>( restart );
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| 122 |
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| 123 | angle->setValue( 60 );
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| 124 | force->setValue( 25 );
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| 125 | angle-><a href="qwidget.html#setFocus">setFocus</a>();
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| 126 |
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| 127 | newGame();
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| 128 | }
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| 129 |
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| 130 |
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| 131 | void <a name="f110"></a>GameBoard::fire()
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| 132 | {
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| 133 | if ( cannonField->gameOver() || cannonField->isShooting() )
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| 134 | return;
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| 135 | shotsLeft-><a href="qlcdnumber.html#display">display</a>( shotsLeft-><a href="qlcdnumber.html#intValue">intValue</a>() - 1 );
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| 136 | cannonField->shoot();
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| 137 | }
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| 138 |
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| 139 |
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| 140 | void <a name="f111"></a>GameBoard::hit()
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| 141 | {
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| 142 | hits-><a href="qlcdnumber.html#display">display</a>( hits-><a href="qlcdnumber.html#intValue">intValue</a>() + 1 );
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| 143 | if ( shotsLeft-><a href="qlcdnumber.html#intValue">intValue</a>() == 0 )
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| 144 | cannonField->setGameOver();
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| 145 | else
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| 146 | cannonField->newTarget();
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| 147 | }
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| 148 |
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| 149 |
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| 150 | void <a name="f112"></a>GameBoard::missed()
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| 151 | {
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| 152 | if ( shotsLeft-><a href="qlcdnumber.html#intValue">intValue</a>() == 0 )
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| 153 | cannonField->setGameOver();
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| 154 | }
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| 155 |
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| 156 |
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| 157 | void <a name="f113"></a>GameBoard::newGame()
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| 158 | {
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| 159 | shotsLeft-><a href="qlcdnumber.html#display">display</a>( 15 );
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| 160 | hits-><a href="qlcdnumber.html#display">display</a>( 0 );
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| 161 | cannonField->restartGame();
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| 162 | cannonField->newTarget();
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| 163 | }
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| 164 | </pre><!-- eof -->
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| 165 | <p><address><hr><div align=center>
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| 166 | <table width=100% cellspacing=0 border=0><tr>
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| 167 | <td>Copyright © 2007
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| 168 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 169 | <td align=right><div align=right>Qt 3.3.8</div>
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| 170 | </table></div></address></body>
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| 171 | </html>
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