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/****************************************************************************
**
** Implementation of QEditorFactory class
**
** Created : 2000-11-17
**
** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the sql module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "qcleanuphandler.h"
#include "qlabel.h"
#include "qlineedit.h"
#include "qspinbox.h"
#include "qcombobox.h"
#include "qeditorfactory.h"
#include "qdatetimeedit.h"
#ifndef QT_NO_SQL_EDIT_WIDGETS
/*!
\class QEditorFactory qeditorfactory.h
\brief The QEditorFactory class is used to create editor widgets
for QVariant data types.
\ingroup database
\module sql
Each editor factory provides the createEditor() function which
given a QVariant will create and return a QWidget that can edit
that QVariant. For example if you have a QVariant::String type, a
QLineEdit would be the default editor returned, whereas a
QVariant::Int's default editor would be a QSpinBox.
If you want to create different editors for fields with the same
data type, subclass QEditorFactory and reimplement the
createEditor() function.
*/
/*!
Constructs an editor factory with parent \a parent, called \a name.
*/
QEditorFactory::QEditorFactory ( QObject * parent, const char * name )
: QObject( parent, name )
{
}
/*!
Destroys the object and frees any allocated resources.
*/
QEditorFactory::~QEditorFactory()
{
}
static QEditorFactory * defaultfactory = 0;
static QCleanupHandler< QEditorFactory > q_cleanup_editor_factory;
/*!
Returns an instance of a default editor factory.
*/
QEditorFactory * QEditorFactory::defaultFactory()
{
if( defaultfactory == 0 ){
defaultfactory = new QEditorFactory();
q_cleanup_editor_factory.add( &defaultfactory );
}
return defaultfactory;
}
/*!
Replaces the default editor factory with \a factory.
\e{QEditorFactory takes ownership of factory, and destroys it
when it is no longer needed.}
*/
void QEditorFactory::installDefaultFactory( QEditorFactory * factory )
{
if( factory == 0 || factory == defaultfactory ) return;
if( defaultfactory != 0 ){
q_cleanup_editor_factory.remove( &defaultfactory );
delete defaultfactory;
}
defaultfactory = factory;
q_cleanup_editor_factory.add( &defaultfactory );
}
/*!
Creates and returns the appropriate editor for the QVariant \a v.
If the QVariant is invalid, 0 is returned. The \a parent is passed
to the appropriate editor's constructor.
*/
QWidget * QEditorFactory::createEditor( QWidget * parent, const QVariant & v )
{
QWidget * w = 0;
switch( v.type() ){
case QVariant::Invalid:
w = 0;
break;
case QVariant::Bool:
w = new QComboBox( parent, "qt_editor_bool" );
((QComboBox *) w)->insertItem( "False" );
((QComboBox *) w)->insertItem( "True" );
break;
case QVariant::UInt:
w = new QSpinBox( 0, 999999, 1, parent, "qt_editor_spinbox" );
break;
case QVariant::Int:
w = new QSpinBox( -999999, 999999, 1, parent, "qt_editor_int" );
break;
case QVariant::String:
case QVariant::CString:
case QVariant::Double:
w = new QLineEdit( parent, "qt_editor_double" );
((QLineEdit*)w)->setFrame( FALSE );
break;
case QVariant::Date:
w = new QDateEdit( parent, "qt_editor_date" );
break;
case QVariant::Time:
w = new QTimeEdit( parent, "qt_editor_time" );
break;
case QVariant::DateTime:
w = new QDateTimeEdit( parent, "qt_editor_datetime" );
break;
#ifndef QT_NO_LABEL
case QVariant::Pixmap:
w = new QLabel( parent, "qt_editor_pixmap" );
break;
#endif
case QVariant::Palette:
case QVariant::ColorGroup:
case QVariant::Color:
case QVariant::Font:
case QVariant::Brush:
case QVariant::Bitmap:
case QVariant::Cursor:
case QVariant::Map:
case QVariant::StringList:
case QVariant::Rect:
case QVariant::Size:
case QVariant::IconSet:
case QVariant::Point:
case QVariant::PointArray:
case QVariant::Region:
case QVariant::SizePolicy:
case QVariant::ByteArray:
default:
w = new QWidget( parent, "qt_editor_default" );
break;
}
return w;
}
#endif // QT_NO_SQL
|
