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6<title>t11/main.cpp Example File</title>
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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>t11/main.cpp Example File</h1>
33
34
35<pre>/****************************************************************
36**
37** Qt tutorial 11
38**
39****************************************************************/
40
41#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
42#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
43#include &lt;<a href="qlcdnumber-h.html">qlcdnumber.h</a>&gt;
44#include &lt;<a href="qfont-h.html">qfont.h</a>&gt;
45#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;
46
47#include "lcdrange.h"
48#include "cannon.h"
49
50
51class MyWidget: public <a href="qwidget.html">QWidget</a>
52{
53public:
54 MyWidget( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );
55};
56
57
58<a name="f66"></a>MyWidget::MyWidget( <a href="qwidget.html">QWidget</a> *parent, const char *name )
59 : <a href="qwidget.html">QWidget</a>( parent, name )
60{
61 <a href="qpushbutton.html">QPushButton</a> *quit = new <a href="qpushbutton.html">QPushButton</a>( "&amp;Quit", this, "quit" );
62 quit-&gt;<a href="qwidget.html#setFont">setFont</a>( QFont( "Times", 18, QFont::Bold ) );
63
64 <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>()) );
65
66 LCDRange *angle = new LCDRange( this, "angle" );
67 angle-&gt;setRange( 5, 70 );
68
69 LCDRange *force = new LCDRange( this, "force" );
70 force-&gt;setRange( 10, 50 );
71
72 CannonField *cannonField = new CannonField( this, "cannonField" );
73
74 <a href="qobject.html#connect">connect</a>( angle, SIGNAL(valueChanged(int)),
75 cannonField, SLOT(setAngle(int)) );
76 <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(angleChanged(int)),
77 angle, SLOT(setValue(int)) );
78
79 <a href="qobject.html#connect">connect</a>( force, SIGNAL(valueChanged(int)),
80 cannonField, SLOT(setForce(int)) );
81 <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(forceChanged(int)),
82 force, SLOT(setValue(int)) );
83
84 <a href="qpushbutton.html">QPushButton</a> *shoot = new <a href="qpushbutton.html">QPushButton</a>( "&amp;Shoot", this, "shoot" );
85 shoot-&gt;<a href="qwidget.html#setFont">setFont</a>( QFont( "Times", 18, QFont::Bold ) );
86
87 <a href="qobject.html#connect">connect</a>( shoot, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), cannonField, SLOT(shoot()) );
88
89 <a href="qgridlayout.html">QGridLayout</a> *grid = new <a href="qgridlayout.html">QGridLayout</a>( this, 2, 2, 10 );
90 grid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( quit, 0, 0 );
91 grid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cannonField, 1, 1 );
92 grid-&gt;<a href="qgridlayout.html#setColStretch">setColStretch</a>( 1, 10 );
93
94 <a href="qvboxlayout.html">QVBoxLayout</a> *leftBox = new <a href="qvboxlayout.html">QVBoxLayout</a>;
95 grid-&gt;<a href="qgridlayout.html#addLayout">addLayout</a>( leftBox, 1, 0 );
96 leftBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( angle );
97 leftBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( force );
98
99 <a href="qhboxlayout.html">QHBoxLayout</a> *topBox = new <a href="qhboxlayout.html">QHBoxLayout</a>;
100 grid-&gt;<a href="qgridlayout.html#addLayout">addLayout</a>( topBox, 0, 1 );
101 topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( shoot );
102 topBox-&gt;<a href="qboxlayout.html#addStretch">addStretch</a>( 1 );
103
104 angle-&gt;setValue( 60 );
105 force-&gt;setValue( 25 );
106 angle-&gt;<a href="qwidget.html#setFocus">setFocus</a>();
107}
108
109int main( int argc, char **argv )
110{
111 QApplication::<a href="qapplication.html#setColorSpec">setColorSpec</a>( QApplication::CustomColor );
112 <a href="qapplication.html">QApplication</a> a( argc, argv );
113
114 MyWidget w;
115 w.<a href="qwidget.html#setGeometry">setGeometry</a>( 100, 100, 500, 355 );
116 a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &amp;w );
117 w.<a href="qwidget.html#show">show</a>();
118 return a.<a href="qapplication.html#exec">exec</a>();
119}
120</pre><!-- eof -->
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125<td align=right><div align=right>Qt 3.3.8</div>
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