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authorAlan Alpert <alan.alpert@nokia.com>2012-08-10 16:51:01 +1000
committerThe Qt Project <gerrit-noreply@qt-project.org>2012-12-11 00:42:36 +0100
commiteb6199da86b90a628e272381a28c91ab64c3dbfa (patch)
treea74b9f37a6c060d75f1460a57423910bd91db4c0 /examples/quick/imageprovider/imageprovider.cpp
parenta6065d60f158ffad7a94877883af69731da94295 (diff)
Move examples around
imageprovider is a QtQuick example. Models and Views examples are now split up, as one is a collection of C++ examples and the other is banded into a single QML example. Task-Number: QTBUG-24133 Change-Id: I81874871bd69ffef6a88df84f3d3f649e0c56bc6 Reviewed-by: hjk <qthjk@ovi.com>
Diffstat (limited to 'examples/quick/imageprovider/imageprovider.cpp')
-rw-r--r--examples/quick/imageprovider/imageprovider.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/examples/quick/imageprovider/imageprovider.cpp b/examples/quick/imageprovider/imageprovider.cpp
new file mode 100644
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+++ b/examples/quick/imageprovider/imageprovider.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the demonstration applications 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 Digia Plc 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 <qqmlextensionplugin.h>
+
+#include <qqmlengine.h>
+#include <qquickimageprovider.h>
+#include <QImage>
+#include <QPainter>
+
+//![0]
+class ColorImageProvider : public QQuickImageProvider
+{
+public:
+ ColorImageProvider()
+ : QQuickImageProvider(QQuickImageProvider::Pixmap)
+ {
+ }
+
+ QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)
+ {
+ int width = 100;
+ int height = 50;
+
+ if (size)
+ *size = QSize(width, height);
+ QPixmap pixmap(requestedSize.width() > 0 ? requestedSize.width() : width,
+ requestedSize.height() > 0 ? requestedSize.height() : height);
+ pixmap.fill(QColor(id).rgba());
+//![0]
+
+ // write the color name
+ QPainter painter(&pixmap);
+ QFont f = painter.font();
+ f.setPixelSize(20);
+ painter.setFont(f);
+ painter.setPen(Qt::black);
+ if (requestedSize.isValid())
+ painter.scale(requestedSize.width() / width, requestedSize.height() / height);
+ painter.drawText(QRectF(0, 0, width, height), Qt::AlignCenter, id);
+
+//![1]
+ return pixmap;
+ }
+};
+//![1]
+
+
+class ImageProviderExtensionPlugin : public QQmlExtensionPlugin
+{
+ Q_OBJECT
+ Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface")
+public:
+ void registerTypes(const char *uri)
+ {
+ Q_UNUSED(uri);
+ }
+
+ void initializeEngine(QQmlEngine *engine, const char *uri)
+ {
+ Q_UNUSED(uri);
+ engine->addImageProvider("colors", new ColorImageProvider);
+ }
+
+};
+
+
+#define QQmlExtensionInterface_iid "org.qt-project.Qt.QQmlExtensionInterface"
+
+
+#include "imageprovider.moc"