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<title>An Extension Dialog Example</title>
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<font color="#004faf">Home</font></a>
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<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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<p>
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<p> This example demonstrates how to create an extension dialog.
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<p> Essentially all that is necessary is to create a standard dialog
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and then create a <a href="qwidget.html">TQWidget</a> form to be used as the extension. See
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the article in <a href="http://doc.trolltech.com/qq/">TQt
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Quarterly</a> issue #3.
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<p> <hr>
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<p> Project file:
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<p> <pre>TEMPLATE = app
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LANGUAGE = C++
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CONFIG += qt warn_on release
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RETQUIRES = full-config nocrosscompiler
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SOURCES += main.cpp
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FORMS = mainform.ui \
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dialogform.ui \
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extension.ui
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DBFILE = extension.db
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</pre>
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<p> <hr>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/****************************************************************************
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** ui.h extension file, included from the uic-generated form implementation.
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**
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** If you wish to add, delete or rename functions use TQt Designer which will
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** update this file, preserving your code. Create an init() function in place
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** of a constructor, and a destroy() function in place of a destructor.
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*****************************************************************************/
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#include "dialogform.h"
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#include "extension.h"
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
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#include <<a href="qlineedit-h.html">qlineedit.h</a>>
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void MainForm::init()
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{
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sessions = FALSE;
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logging = FALSE;
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log_filename = <a href="qstring.html#TQString-null">TQString::null</a>;
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log_errors = TRUE;
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log_actions = TRUE;
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}
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void MainForm::optionsDlg()
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{
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DialogForm *dlg = new DialogForm( this, "dialog", TRUE );
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Extension *ext = (Extension*)dlg->extension()->qt_cast( "Extension" );
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if ( !ext )
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return;
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dlg->sessionsCheckBox->setChecked( sessions );
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dlg->loggingCheckBox->setChecked( logging );
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ext->logfileLineEdit->setText( log_filename );
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ext->logErrorsCheckBox->setChecked( log_errors );
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if ( dlg->exec() ) {
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sessions = dlg->sessionsCheckBox->isChecked();
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logging = dlg->loggingCheckBox->isChecked();
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log_filename = ext->logfileLineEdit->text();
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log_errors = ext->logErrorsCheckBox->isChecked();
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}
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}
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void MainForm::quit()
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{
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<a name="x2865"></a> TQApplication::<a href="qapplication.html#exit">exit</a>( 0 );
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}
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</pre>
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<pre>/****************************************************************************
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** ui.h extension file, included from the uic-generated form implementation.
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**
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** If you wish to add, delete or rename functions use TQt Designer which will
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** update this file, preserving your code. Create an init() function in place
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** of a constructor, and a destroy() function in place of a destructor.
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*****************************************************************************/
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void DialogForm::init()
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{
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extensionShown = FALSE;
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setExtension( new Extension( this ) );
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setOrientation( Vertical );
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}
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void DialogForm::toggleDetails()
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{
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extensionShown = !extensionShown;
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showExtension( extensionShown );
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<a href="qstring.html">TQString</a> text = tr( "&Details " );
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text += TQString( extensionShown ? "<<<" : ">>>" );
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detailsPushButton->setText( text );
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}
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</pre>
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<pre>/****************************************************************************
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** ui.h extension file, included from the uic-generated form implementation.
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**
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** If you wish to add, delete or rename functions use TQt Designer which will
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** update this file, preserving your code. Create an init() function in place
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** of a constructor, and a destroy() function in place of a destructor.
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*****************************************************************************/
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</pre>
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<p> <hr>
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<p> Main:
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<p> <pre>#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include "mainform.h"
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int main( int argc, char ** argv )
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{
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<a href="qapplication.html">TQApplication</a> a( argc, argv );
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MainForm *w = new MainForm;
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w->show();
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<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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return a.<a href="qapplication.html#exec">exec</a>();
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}
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</pre>
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<p> <p>See also <a href="step-by-step-examples.html">Step-by-step Examples</a>.
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<!-- eof -->
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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