| [190] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/extension/extension.doc:1 -->
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| 3 | <html>
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| 4 | <head>
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| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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| 6 | <title>An Extension Dialog Example</title>
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| 7 | <style type="text/css"><!--
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| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
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| 17 | <tr bgcolor="#E5E5E5">
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| 18 | <td valign=center>
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| 19 | <a href="index.html">
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| 20 | <font color="#004faf">Home</font></a>
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| 21 | | <a href="classes.html">
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| 22 | <font color="#004faf">All Classes</font></a>
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| 23 | | <a href="mainclasses.html">
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 25 | | <a href="annotated.html">
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| 26 | <font color="#004faf">Annotated</font></a>
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| 27 | | <a href="groups.html">
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 29 | | <a href="functions.html">
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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>An Extension Dialog Example</h1>
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| 33 |
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| 34 |
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| 35 |
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| 36 | <p>
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| 37 | <p> This example demonstrates how to create an extension dialog.
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| 38 | <p> Essentially all that is necessary is to create a standard dialog
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| 39 | and then create a <a href="qwidget.html">QWidget</a> form to be used as the extension. See
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| 40 | the article in <a href="http://doc.trolltech.com/qq/">Qt
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| 41 | Quarterly</a> issue #3.
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| 42 | <p> <hr>
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| 43 | <p> Project file:
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| 44 | <p> <pre>TEMPLATE = app
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| 45 | LANGUAGE = C++
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| 46 |
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| 47 | CONFIG += qt warn_on release
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| 48 |
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| 49 | REQUIRES = full-config nocrosscompiler
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| 50 |
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| 51 | SOURCES += main.cpp
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| 52 | FORMS = mainform.ui \
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| 53 | dialogform.ui \
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| 54 | extension.ui
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| 55 | DBFILE = extension.db
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| 56 | </pre>
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| 57 |
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| 58 | <p> <hr>
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| 59 | <p> <hr>
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| 60 | <p> Implementation:
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| 61 | <p> <pre>/****************************************************************************
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| 62 | ** ui.h extension file, included from the uic-generated form implementation.
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| 63 | **
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| 64 | ** If you wish to add, delete or rename functions use Qt Designer which will
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| 65 | ** update this file, preserving your code. Create an init() function in place
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| 66 | ** of a constructor, and a destroy() function in place of a destructor.
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| 67 | *****************************************************************************/
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| 68 | #include "dialogform.h"
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| 69 | #include "extension.h"
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| 70 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 71 | #include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
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| 72 | #include <<a href="qlineedit-h.html">qlineedit.h</a>>
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| 73 |
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| 74 | void MainForm::init()
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| 75 | {
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| 76 | sessions = FALSE;
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| 77 | logging = FALSE;
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| 78 | log_filename = <a href="qstring.html#QString-null">QString::null</a>;
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| 79 | log_errors = TRUE;
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| 80 | log_actions = TRUE;
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| 81 | }
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| 82 |
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| 83 | void MainForm::optionsDlg()
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| 84 | {
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| 85 | DialogForm *dlg = new DialogForm( this, "dialog", TRUE );
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| 86 | Extension *ext = (Extension*)dlg->extension()->qt_cast( "Extension" );
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| 87 | if ( !ext )
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| 88 | return;
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| 89 | dlg->sessionsCheckBox->setChecked( sessions );
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| 90 | dlg->loggingCheckBox->setChecked( logging );
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| 91 | ext->logfileLineEdit->setText( log_filename );
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| 92 | ext->logErrorsCheckBox->setChecked( log_errors );
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| 93 |
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| 94 | if ( dlg->exec() ) {
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| 95 | sessions = dlg->sessionsCheckBox->isChecked();
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| 96 | logging = dlg->loggingCheckBox->isChecked();
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| 97 | log_filename = ext->logfileLineEdit->text();
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| 98 | log_errors = ext->logErrorsCheckBox->isChecked();
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| 99 | }
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| 100 | }
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| 101 |
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| 102 |
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| 103 | void MainForm::quit()
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| 104 | {
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| 105 | <a name="x2865"></a> QApplication::<a href="qapplication.html#exit">exit</a>( 0 );
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| 106 | }
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| 107 | </pre>
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| 108 |
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| 109 | <pre>/****************************************************************************
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| 110 | ** ui.h extension file, included from the uic-generated form implementation.
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| 111 | **
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| 112 | ** If you wish to add, delete or rename functions use Qt Designer which will
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| 113 | ** update this file, preserving your code. Create an init() function in place
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| 114 | ** of a constructor, and a destroy() function in place of a destructor.
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| 115 | *****************************************************************************/
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| 116 |
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| 117 | void DialogForm::init()
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| 118 | {
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| 119 | extensionShown = FALSE;
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| 120 | setExtension( new Extension( this ) );
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| 121 | setOrientation( Vertical );
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| 122 | }
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| 123 |
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| 124 |
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| 125 | void DialogForm::toggleDetails()
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| 126 | {
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| 127 | extensionShown = !extensionShown;
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| 128 | showExtension( extensionShown );
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| 129 | <a href="qstring.html">QString</a> text = tr( "&Details " );
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| 130 | text += QString( extensionShown ? "<<<" : ">>>" );
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| 131 | detailsPushButton->setText( text );
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| 132 | }
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| 133 | </pre>
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| 134 |
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| 135 | <pre>/****************************************************************************
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| 136 | ** ui.h extension file, included from the uic-generated form implementation.
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| 137 | **
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| 138 | ** If you wish to add, delete or rename functions use Qt Designer which will
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| 139 | ** update this file, preserving your code. Create an init() function in place
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| 140 | ** of a constructor, and a destroy() function in place of a destructor.
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| 141 | *****************************************************************************/
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| 142 | </pre>
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| 143 |
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| 144 | <p> <hr>
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| 145 | <p> Main:
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| 146 | <p> <pre>#include <<a href="qapplication-h.html">qapplication.h</a>>
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| 147 | #include "mainform.h"
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| 148 |
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| 149 | int main( int argc, char ** argv )
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| 150 | {
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| 151 | <a href="qapplication.html">QApplication</a> a( argc, argv );
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| 152 | MainForm *w = new MainForm;
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| 153 | w->show();
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| 154 | <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() ) );
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| 155 | return a.<a href="qapplication.html#exec">exec</a>();
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| 156 | }
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| 157 | </pre>
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| 158 |
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| 159 | <p> <p>See also <a href="step-by-step-examples.html">Step-by-step Examples</a>.
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| 160 |
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| 161 | <!-- eof -->
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| 162 | <p><address><hr><div align=center>
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| 163 | <table width=100% cellspacing=0 border=0><tr>
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| 164 | <td>Copyright © 2007
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| 165 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 166 | <td align=right><div align=right>Qt 3.3.8</div>
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| 167 | </table></div></address></body>
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| 168 | </html>
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