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<title>An Extension Dialog Example</title>
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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>
<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">TQWidget</a> form to be used as the extension. See
the article in <a href="http://doc.trolltech.com/qq/">TQt
Quarterly</a> issue #3.
<p> <hr>
<p> Project file:
<p> <pre>TEMPLATE = app
LANGUAGE = C++
CONFIG += qt warn_on release
RETQUIRES = 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 TQt 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#TQString-null">TQString::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> TQApplication::<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 TQt 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">TQString</a> text = tr( "&Details " );
text += TQString( 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 TQt 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">TQApplication</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>.
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<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>
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