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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtSvg module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsvgwidget.h"
+
+#ifndef QT_NO_SVGWIDGET
+
+#include "qsvgrenderer.h"
+
+#include "qpainter.h"
+#include "private/qwidget_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+ \class QSvgWidget
+ \ingroup multimedia
+
+ \brief The QSvgWidget class provides a widget that is used to display the contents of
+ Scalable Vector Graphics (SVG) files.
+ \since 4.1
+
+ This class enables developers to display SVG drawings alongside standard widgets, and
+ is used in much the same way as QLabel is used for displaying text and bitmap images.
+
+ Since QSvgWidget is a subclass of QWidget, SVG drawings are rendered using the properties
+ of the display. More control can be exercised over the rendering process with the
+ QSvgRenderer class, as this can be used to paint onto other paint devices, such as QImage
+ and QGLWidget. The renderer used by the widget can be obtained with the renderer()
+ function.
+
+ Each QSvgWidget can be constructed with the file name of a SVG file, or they can be
+ constructed without a specific file to render and one can be supplied later. The load()
+ functions provide two different ways to load an SVG file: they accept either the file name
+ of an SVG file or a QByteArray containing the serialized XML representation of an SVG file.
+
+ By default, the widget provides a size hint to reflect the size of the drawing that it
+ displays. If no data has been loaded, the widget provides the default QWidget size hint.
+ Subclass this class and reimplement sizeHint() if you need to customize this behavior.
+
+ \sa QSvgRenderer, {QtSvg Module}, QPicture
+*/
+
+class QSvgWidgetPrivate : public QWidgetPrivate
+{
+ Q_DECLARE_PUBLIC(QSvgWidget)
+public:
+ QSvgWidgetPrivate()
+ : QWidgetPrivate()
+ {
+ Q_Q(QSvgWidget);
+ renderer = new QSvgRenderer(q);
+ }
+ QSvgWidgetPrivate(const QString &file)
+ : QWidgetPrivate()
+ {
+ Q_Q(QSvgWidget);
+ renderer = new QSvgRenderer(file, q);
+ }
+ QSvgRenderer *renderer;
+};
+
+/*!
+ Constructs a new SVG display widget with the given \a parent.
+*/
+QSvgWidget::QSvgWidget(QWidget *parent)
+ : QWidget(*new QSvgWidgetPrivate, parent, 0)
+{
+ QObject::connect(d_func()->renderer, SIGNAL(repaintNeeded()),
+ this, SLOT(update()));
+}
+
+/*!
+ Constructs a new SVG display widget with the given \a parent and loads the contents
+ of the specified \a file.
+*/
+QSvgWidget::QSvgWidget(const QString &file, QWidget *parent)
+ : QWidget(*new QSvgWidgetPrivate(file), parent, 0)
+{
+ QObject::connect(d_func()->renderer, SIGNAL(repaintNeeded()),
+ this, SLOT(update()));
+}
+
+/*!
+ Destroys the widget.
+*/
+QSvgWidget::~QSvgWidget()
+{
+
+}
+
+/*!
+ Returns the renderer used to display the contents of the widget.
+*/
+QSvgRenderer * QSvgWidget::renderer() const
+{
+ Q_D(const QSvgWidget);
+ return d->renderer;
+}
+
+
+/*!
+ \reimp
+*/
+QSize QSvgWidget::sizeHint() const
+{
+ Q_D(const QSvgWidget);
+ if (d->renderer->isValid())
+ return d->renderer->defaultSize();
+ else
+ return QSize(128, 64);
+}
+
+
+/*!
+ \reimp
+*/
+void QSvgWidget::paintEvent(QPaintEvent *)
+{
+ Q_D(QSvgWidget);
+ QPainter p(this);
+ d->renderer->render(&p);
+}
+
+/*!
+ Loads the contents of the specified SVG \a file and updates the widget.
+*/
+void QSvgWidget::load(const QString &file)
+{
+ Q_D(const QSvgWidget);
+ d->renderer->load(file);
+}
+
+/*!
+ Loads the specified SVG format \a contents and updates the widget.
+*/
+void QSvgWidget::load(const QByteArray &contents)
+{
+ Q_D(const QSvgWidget);
+ d->renderer->load(contents);
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_SVGWIDGET