Logo Search packages:      
Sourcecode: qt4-x11 version File versions  Download package

q3sqleditorfactory.cpp

/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt3Support module of the Qt 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. In
** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.1, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** 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.
**
** In addition, as a special exception, Trolltech, as the sole
** copyright holder for Qt Designer, grants users of the Qt/Eclipse
** Integration plug-in the right for the Qt/Eclipse Integration to
** link to functionality provided by Qt Designer and its related
** libraries.
**
** 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 expressly
** granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "q3sqleditorfactory.h"

#ifndef QT_NO_SQL_EDIT_WIDGETS

#include "qsqlfield.h"
#include "q3cleanuphandler.h"
#include "qlabel.h"
#include "qlineedit.h"
#include "qspinbox.h"
#include "qcombobox.h"
#include "qdatetimeedit.h"

/*!
    \class Q3SqlEditorFactory qsqleditorfactory.h
    \brief The Q3SqlEditorFactory class is used to create the editors
    used by Q3DataTable and Q3SqlForm.

    \compat

    Q3SqlEditorFactory is used by Q3DataTable and Q3SqlForm 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 Q3SqlEditorFactory and reimplement the
    createEditor() function.

    \sa Q3DataTable, Q3SqlForm
*/


/*!
    Constructs a SQL editor factory with parent \a parent.
*/

00081 Q3SqlEditorFactory::Q3SqlEditorFactory (QObject * parent)
    : Q3EditorFactory(parent)
{

}

/*!
    Destroys the object and frees any allocated resources.
*/

00091 Q3SqlEditorFactory::~Q3SqlEditorFactory()
{

}

static Q3SqlEditorFactory * defaultfactory = 0;
static Q3CleanupHandler< Q3SqlEditorFactory > qsql_cleanup_editor_factory;

/*!
    Returns an instance of a default editor factory.
*/

00103 Q3SqlEditorFactory * Q3SqlEditorFactory::defaultFactory()
{
    if(defaultfactory == 0){
        defaultfactory = new Q3SqlEditorFactory();
        qsql_cleanup_editor_factory.add(&defaultfactory);
    }

    return defaultfactory;
}

/*!
    Replaces the default editor factory with \a factory. All
    Q3DataTable and Q3SqlForm instantiations will use this new factory
    for creating field editors. \e{Q3SqlEditorFactory takes ownership
    of \a factory, and destroys it when it is no longer needed.}
*/

00120 void Q3SqlEditorFactory::installDefaultFactory(Q3SqlEditorFactory * 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.
*/

00140 QWidget * Q3SqlEditorFactory::createEditor(QWidget * parent,
                                           const QVariant & variant)
{
    return Q3EditorFactory::createEditor(parent, variant);
}

/*!
    \overload

    Creates and returns the appropriate editor for the QSqlField \a
    field.
*/

00153 QWidget * Q3SqlEditorFactory::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(QLatin1String("False"));
            ((QComboBox *) w)->insertItem(QLatin1String("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::Double:
            w = new QLineEdit(parent, "qt_editor_double");
            ((QLineEdit*)w)->setFrame(false);
            break;
        case QVariant::Date: {
            QDateTimeEdit *edit = new QDateTimeEdit(parent);
            edit->setDisplayFormat(QLatin1String("yyyy/MM/dd"));
            edit->setObjectName(QLatin1String("qt_editor_date"));
            w = edit; }
            break;
        case QVariant::Time: {
            QDateTimeEdit *edit = new QDateTimeEdit(parent);
            edit->setDisplayFormat(QLatin1String("hh:mm"));
            edit->setObjectName(QLatin1String("qt_editor_time"));
            w = edit; }
            break;
        case QVariant::DateTime:
            w = new QDateTimeEdit(parent);
            w->setObjectName(QLatin1String("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::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

Generated by  Doxygen 1.6.0   Back to index