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Diffstat (limited to 'src/sql/qsqleditorfactory.cpp')
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1 files changed, 221 insertions, 0 deletions
diff --git a/src/sql/qsqleditorfactory.cpp b/src/sql/qsqleditorfactory.cpp new file mode 100644 index 0000000..d0ce4e7 --- /dev/null +++ b/src/sql/qsqleditorfactory.cpp @@ -0,0 +1,221 @@ +/**************************************************************************** +** +** Implementation of QSqlEditorFactory class +** +** Created : 2000-11-03 +** +** 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 "qsqleditorfactory.h" + +#ifndef QT_NO_SQL_EDIT_WIDGETS + +#include "qsqlfield.h" +#include "qcleanuphandler.h" +#include "qlabel.h" +#include "qlineedit.h" +#include "qspinbox.h" +#include "qcombobox.h" +#include "qdatetimeedit.h" + +/*! + \class QSqlEditorFactory qsqleditorfactory.h + \brief The QSqlEditorFactory class is used to create the editors + used by QDataTable and QSqlForm. + + \ingroup database + \module sql + + QSqlEditorFactory is used by QDataTable and QSqlForm to + automatically create appropriate editors for a given QSqlField. + For example if the field is a QVariant::String a QLineEdit would + be the default editor, 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 QSqlEditorFactory and reimplement the + createEditor() function. + + \sa QDataTable, QSqlForm +*/ + + +/*! + Constructs a SQL editor factory with parent \a parent, called \a + name. +*/ + +QSqlEditorFactory::QSqlEditorFactory ( QObject * parent, const char * name ) + : QEditorFactory( parent, name ) +{ + +} + +/*! + Destroys the object and frees any allocated resources. +*/ + +QSqlEditorFactory::~QSqlEditorFactory() +{ + +} + +static QSqlEditorFactory * defaultfactory = 0; +static QCleanupHandler< QSqlEditorFactory > qsql_cleanup_editor_factory; + +/*! + Returns an instance of a default editor factory. +*/ + +QSqlEditorFactory * QSqlEditorFactory::defaultFactory() +{ + if( defaultfactory == 0 ){ + defaultfactory = new QSqlEditorFactory(); + qsql_cleanup_editor_factory.add( &defaultfactory ); + } + + return defaultfactory; +} + +/*! + Replaces the default editor factory with \a factory. All + QDataTable and QSqlForm instantiations will use this new factory + for creating field editors. \e{QSqlEditorFactory takes ownership + of \a factory, and destroys it when it is no longer needed.} +*/ + +void QSqlEditorFactory::installDefaultFactory( QSqlEditorFactory * factory ) +{ + if( factory == 0 ) return; + + if( defaultfactory != 0 ){ + qsql_cleanup_editor_factory.remove( &defaultfactory ); + delete defaultfactory; + } + defaultfactory = factory; + qsql_cleanup_editor_factory.add( &defaultfactory ); +} + +/*! + Creates and returns the appropriate editor widget for the QVariant + \a variant. + + The widget that is returned has the parent \a parent (which may be + zero). If \a variant is invalid, 0 is returned. +*/ + +QWidget * QSqlEditorFactory::createEditor( QWidget * parent, + const QVariant & variant ) +{ + return QEditorFactory::createEditor( parent, variant ); +} + +/*! + \overload + + Creates and returns the appropriate editor for the QSqlField \a + field. +*/ + +QWidget * QSqlEditorFactory::createEditor( QWidget * parent, + const QSqlField * field ) +{ + if ( !field ) { + return 0; + } + + QWidget * w = 0; + switch( field->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, 2147483647, 1, parent, "qt_editor_spinbox" ); + break; + case QVariant::Int: + w = new QSpinBox( -2147483647, 2147483647, 1, parent, "qt_editor_int" ); + break; + case QVariant::LongLong: + case QVariant::ULongLong: + 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 |