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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/extension/extension.doc:1 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>An Extension Dialog Example</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>An Extension Dialog Example</h1>
<p>
<p> This example demonstrates how to create an extension dialog.
<p> Essentially all that is necessary is to create a standard dialog
and then create a <a href="qwidget.html">QWidget</a> form to be used as the extension. See
the article in <a href="http://doc.trolltech.com/qq/">Qt
Quarterly</a> issue #3.
<p> <hr>
<p> Project file:
<p> <pre>TEMPLATE = app
LANGUAGE = C++
CONFIG += qt warn_on release
REQUIRES = full-config nocrosscompiler
SOURCES += main.cpp
FORMS = mainform.ui \
dialogform.ui \
extension.ui
DBFILE = extension.db
</pre>
<p> <hr>
<p> <hr>
<p> Implementation:
<p> <pre>/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions use Qt Designer which will
** update this file, preserving your code. Create an init() function in place
** of a constructor, and a destroy() function in place of a destructor.
*****************************************************************************/
#include "dialogform.h"
#include "extension.h"
#include <<a href="qapplication-h.html">qapplication.h</a>>
#include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
#include <<a href="qlineedit-h.html">qlineedit.h</a>>
void MainForm::init()
{
sessions = FALSE;
logging = FALSE;
log_filename = <a href="qstring.html#QString-null">QString::null</a>;
log_errors = TRUE;
log_actions = TRUE;
}
void MainForm::optionsDlg()
{
DialogForm *dlg = new DialogForm( this, "dialog", TRUE );
Extension *ext = (Extension*)dlg->extension()->qt_cast( "Extension" );
if ( !ext )
return;
dlg->sessionsCheckBox->setChecked( sessions );
dlg->loggingCheckBox->setChecked( logging );
ext->logfileLineEdit->setText( log_filename );
ext->logErrorsCheckBox->setChecked( log_errors );
if ( dlg->exec() ) {
sessions = dlg->sessionsCheckBox->isChecked();
logging = dlg->loggingCheckBox->isChecked();
log_filename = ext->logfileLineEdit->text();
log_errors = ext->logErrorsCheckBox->isChecked();
}
}
void MainForm::quit()
{
<a name="x2865"></a> QApplication::<a href="qapplication.html#exit">exit</a>( 0 );
}
</pre>
<pre>/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions use Qt Designer which will
** update this file, preserving your code. Create an init() function in place
** of a constructor, and a destroy() function in place of a destructor.
*****************************************************************************/
void DialogForm::init()
{
extensionShown = FALSE;
setExtension( new Extension( this ) );
setOrientation( Vertical );
}
void DialogForm::toggleDetails()
{
extensionShown = !extensionShown;
showExtension( extensionShown );
<a href="qstring.html">QString</a> text = tr( "&Details " );
text += QString( extensionShown ? "<<<" : ">>>" );
detailsPushButton->setText( text );
}
</pre>
<pre>/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions use Qt Designer which will
** update this file, preserving your code. Create an init() function in place
** of a constructor, and a destroy() function in place of a destructor.
*****************************************************************************/
</pre>
<p> <hr>
<p> Main:
<p> <pre>#include <<a href="qapplication-h.html">qapplication.h</a>>
#include "mainform.h"
int main( int argc, char ** argv )
{
<a href="qapplication.html">QApplication</a> a( argc, argv );
MainForm *w = new MainForm;
w->show();
<a name="x2868"></a><a name="x2867"></a> a.<a href="qobject.html#connect">connect</a>( &a, SIGNAL( <a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>() ), w, SLOT( quit() ) );
return a.<a href="qapplication.html#exec">exec</a>();
}
</pre>
<p> <p>See also <a href="step-by-step-examples.html">Step-by-step Examples</a>.
<!-- 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>Qt 3.3.8</div>
</table></div></address></body>
</html>
|
