From 08fa70bb5fb97b07f0e85a83352fefdf10e03800 Mon Sep 17 00:00:00 2001
From: Casper van Donderen <casper.vandonderen@nokia.com>
Date: Fri, 1 Jun 2012 12:41:13 +0200
Subject: Add more examples for DevNet and add license text.

---
 GeoServicesExample/mapimageplugin/imgrunnable.cpp | 76 +++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 GeoServicesExample/mapimageplugin/imgrunnable.cpp

(limited to 'GeoServicesExample/mapimageplugin/imgrunnable.cpp')

diff --git a/GeoServicesExample/mapimageplugin/imgrunnable.cpp b/GeoServicesExample/mapimageplugin/imgrunnable.cpp
new file mode 100644
index 0000000..04bffcd
--- /dev/null
+++ b/GeoServicesExample/mapimageplugin/imgrunnable.cpp
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** 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 documentation of Qt. It was originally
+** published as part of Qt Quarterly.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 <QBuffer>
+#include "imgrunnable.h"
+
+MapImageRunnable::MapImageRunnable(const QImage &sourceImage, int zoom, int row,
+                                   int column)
+    : m_sourceImage(sourceImage), m_zoom(zoom), m_row(row), m_column(column)
+{
+}
+
+void MapImageRunnable::run()
+{
+    // The number of tiles along each axis is 2^zoom.
+    // zoom is a value from 0 to 4, so the number of tiles are 1 to 16.
+    int number = 1 << m_zoom;
+
+    // Divide the source image into 2^zoom by 2^zoom tiles.
+    int tileWidth = m_sourceImage.size().width() / number;
+    int tileHeight = m_sourceImage.size().height() / number;
+
+    // Calculate the coordinates for the top-left corner of the tile.
+    int tx = m_column * tileWidth;
+    int ty = m_row * tileHeight;
+
+    QImage tileImage = m_sourceImage.copy(tx, ty, tileWidth, tileHeight);
+    QImage scaledImage = tileImage.scaled(256, 256);
+
+    QByteArray data;
+    QBuffer buffer(&data);
+    buffer.open(QBuffer::WriteOnly);
+    scaledImage.save(&buffer, "PNG");
+    buffer.close();
+
+    emit finished(data);
+}
-- 
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