1 files changed, 147 insertions, 0 deletions
diff --git a/examples/script/context2d/qcontext2dcanvas.cpp b/examples/script/context2d/qcontext2dcanvas.cpp
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+++ b/examples/script/context2d/qcontext2dcanvas.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcontext2dcanvas.h"
+
+#include "context2d.h"
+#include "environment.h"
+#include "domimage.h"
+
+#include <QPainter>
+#include <QPaintEvent>
+
+//! [3]
+QContext2DCanvas::QContext2DCanvas(Context2D *context, Environment *env, QWidget *parent)
+    : QWidget(parent), m_context(context), m_env(env)
+{
+    QObject::connect(context, SIGNAL(changed(QImage)), this, SLOT(contentsChanged(QImage)));
+    setMouseTracking(true);
+}
+//! [3]
+
+QContext2DCanvas::~QContext2DCanvas()
+{
+}
+
+Context2D *QContext2DCanvas::context() const
+{
+    return m_context;
+}
+
+//! [0]
+QScriptValue QContext2DCanvas::getContext(const QString &str)
+{
+    if (str != "2d")
+        return QScriptValue();
+    return m_env->toWrapper(m_context);
+}
+//! [0]
+
+//! [1]
+void QContext2DCanvas::contentsChanged(const QImage &image)
+{
+    m_image = image;
+    update();
+}
+
+void QContext2DCanvas::paintEvent(QPaintEvent *e)
+{
+    QPainter p(this);
+#ifdef Q_WS_S60
+// Draw white rect first since in with some themes the js-file content will produce black-on-black.
+    QBrush whiteBgBrush(Qt::white);
+    p.fillRect(e->rect(), whiteBgBrush);
+#endif
+    p.setClipRect(e->rect());
+    p.drawImage(0, 0, m_image);
+}
+//! [1]
+
+//! [2]
+void QContext2DCanvas::mouseMoveEvent(QMouseEvent *e)
+{
+    m_env->handleEvent(this, e);
+}
+
+void QContext2DCanvas::mousePressEvent(QMouseEvent *e)
+{
+    m_env->handleEvent(this, e);
+}
+
+void QContext2DCanvas::mouseReleaseEvent(QMouseEvent *e)
+{
+    m_env->handleEvent(this, e);
+}
+
+void QContext2DCanvas::keyPressEvent(QKeyEvent *e)
+{
+    m_env->handleEvent(this, e);
+}
+
+void QContext2DCanvas::keyReleaseEvent(QKeyEvent *e)
+{
+    m_env->handleEvent(this, e);
+}
+//! [2]
+
+void QContext2DCanvas::resizeEvent(QResizeEvent *e)
+{
+    m_context->setSize(e->size().width(), e->size().height());
+}
+
+void QContext2DCanvas::resize(int width, int height)
+{
+    QWidget::resize(width, height);
+}
+
+void QContext2DCanvas::reset()
+{
+    m_context->reset();
+}
+
+void QContext2DCanvas::addEventListener(const QString &type, const QScriptValue &listener,
+                                        bool useCapture)
+{
+    Q_UNUSED(useCapture);
+    if (listener.isFunction()) {
+        QScriptValue self = m_env->toWrapper(this);
+        self.setProperty("on" + type, listener);
+    }
+}