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