Home · All Classes · All Functions · Overviews

domimage.cpp Example File
script/context2d/domimage.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights.  These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you have questions regarding the use of this file, please contact
 ** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "domimage.h"

 #include <QVariant>

 #include <qscriptcontext.h>

 QScriptValue DomImage::s_self;

 DomImage::DomImage()
 {
 }

 int DomImage::width() const
 {
     return m_image.width();
 }

 int DomImage::height() const
 {
     return m_image.height();
 }

 QString DomImage::src() const
 {
     return m_src;
 }

 void DomImage::setSrc(const QString &src)
 {
     m_src = src;
     m_image = QImage(m_src);
 }

 QString DomImage::name() const
 {
     return m_src;
 }

 static QScriptValue Image(QScriptContext *context, QScriptEngine *env)
 {
     QScriptValue val = context->thisObject();
     DomImage *image = new DomImage();
     QScriptValue klass = env->newVariant(qVariantFromValue(image));
     klass.setPrototype(DomImage::s_self);
     return klass;
 }

 static QScriptValue width(QScriptContext *context, QScriptEngine *)
 {
     QScriptValue val = context->thisObject();

     DomImage *image = qvariant_cast<DomImage*> (val.toVariant());
     if (image)
         return image->width();

     return 0;
 }

 static QScriptValue height(QScriptContext *context, QScriptEngine *)
 {
     QScriptValue val = context->thisObject();

     DomImage *image = qvariant_cast<DomImage*> (val.toVariant());
     if (image)
         return image->height();

     return 0;
 }

 static QScriptValue setSrc(QScriptContext *context, QScriptEngine *env)
 {
     QScriptValue val = context->thisObject();
     QString src  = context->argument(0).toString();

     DomImage *image = qvariant_cast<DomImage*> (val.toVariant());
     if (image)
         image->setSrc(src);

     return env->undefinedValue();
 }

 static QScriptValue name(QScriptContext *context, QScriptEngine *)
 {
     QScriptValue val = context->thisObject();

     DomImage *image = qvariant_cast<DomImage*> (val.toVariant());
     if (image)
         return image->name();

     return QString();
 }

 void DomImage::setup(QScriptEngine *e)
 {
     qRegisterMetaType<DomImage>();

     e->globalObject().setProperty("Image",
                                   e->newFunction(::Image, 0));

     s_self = e->newObject();
     s_self.setProperty("setSrc", e->newFunction(&::setSrc, 1));
     s_self.setProperty("width", e->newFunction(&::width));
     s_self.setProperty("height", e->newFunction(&::height));
     s_self.setProperty("name", e->newFunction(&::name));

     e->setDefaultPrototype(qMetaTypeId<DomImage>(), s_self);
 }


Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.6.3