1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>t10/cannon.cpp Example File</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t10/cannon.cpp Example File</h1>
<pre>/****************************************************************
**
** Implementation CannonField class, TQt tutorial 10
**
****************************************************************/
#include "cannon.h"
#include <<a href="tqpainter-h.html">tqpainter.h</a>>
#include <<a href="tqpixmap-h.html">tqpixmap.h</a>>
<a name="f48"></a>CannonField::CannonField( <a href="tqwidget.html">TQWidget</a> *parent, const char *name )
: <a href="tqwidget.html">TQWidget</a>( parent, name )
{
ang = 45;
f = 0;
<a href="tqwidget.html#setPalette">setPalette</a>( TQPalette( TQColor( 250, 250, 200) ) );
}
void <a name="f49"></a>CannonField::setAngle( int degrees )
{
if ( degrees < 5 )
degrees = 5;
if ( degrees > 70 )
degrees = 70;
if ( ang == degrees )
return;
ang = degrees;
<a href="tqwidget.html#repaint">repaint</a>( cannonRect(), FALSE );
emit angleChanged( ang );
}
void <a name="f50"></a>CannonField::setForce( int newton )
{
if ( newton < 0 )
newton = 0;
if ( f == newton )
return;
f = newton;
emit forceChanged( f );
}
void CannonField::<a href="tqwidget.html#paintEvent">paintEvent</a>( <a href="tqpaintevent.html">TQPaintEvent</a> *e )
{
if ( !e-><a href="tqpaintevent.html#rect">rect</a>().intersects( cannonRect() ) )
return;
<a href="tqrect.html">TQRect</a> cr = cannonRect();
<a href="tqpixmap.html">TQPixmap</a> pix( cr.<a href="tqrect.html#size">size</a>() );
pix.<a href="tqpixmap.html#fill">fill</a>( this, cr.<a href="tqrect.html#topLeft">topLeft</a>() );
<a href="tqpainter.html">TQPainter</a> p( &pix );
p.<a href="tqpainter.html#setBrush">setBrush</a>( blue );
p.<a href="tqpainter.html#setPen">setPen</a>( NoPen );
p.<a href="tqpainter.html#translate">translate</a>( 0, pix.<a href="tqpixmap.html#height">height</a>() - 1 );
p.<a href="tqpainter.html#drawPie">drawPie</a>( TQRect( -35,-35, 70, 70 ), 0, 90*16 );
p.<a href="tqpainter.html#rotate">rotate</a>( -ang );
p.<a href="tqpainter.html#drawRect">drawRect</a>( TQRect(33, -4, 15, 8) );
p.<a href="tqpainter.html#end">end</a>();
p.<a href="tqpainter.html#begin">begin</a>( this );
p.<a href="tqpainter.html#drawPixmap">drawPixmap</a>( cr.<a href="tqrect.html#topLeft">topLeft</a>(), pix );
}
TQRect <a name="f51"></a>CannonField::cannonRect() const
{
<a href="tqrect.html">TQRect</a> r( 0, 0, 50, 50 );
r.<a href="tqrect.html#moveBottomLeft">moveBottomLeft</a>( <a href="tqwidget.html#rect">rect</a>().bottomLeft() );
return r;
}
TQSizePolicy CannonField::<a href="tqwidget.html#sizePolicy">sizePolicy</a>() const
{
return TQSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Expanding );
}
</pre><!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright © 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>TQt 3.3.8</div>
</table></div></address></body>
</html>
|
