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-rw-r--r--examples/threads/queuedcustomtype/block.cpp73
-rw-r--r--examples/threads/queuedcustomtype/block.h70
-rw-r--r--examples/threads/queuedcustomtype/main.cpp128
-rw-r--r--examples/threads/queuedcustomtype/queuedcustomtype.pro7
-rw-r--r--examples/threads/queuedcustomtype/renderthread.cpp109
-rw-r--r--examples/threads/queuedcustomtype/renderthread.h76
-rw-r--r--examples/threads/queuedcustomtype/window.cpp136
-rw-r--r--examples/threads/queuedcustomtype/window.h76
8 files changed, 675 insertions, 0 deletions
diff --git a/examples/threads/queuedcustomtype/block.cpp b/examples/threads/queuedcustomtype/block.cpp
new file mode 100644
index 0000000000..a4252cb258
--- /dev/null
+++ b/examples/threads/queuedcustomtype/block.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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 <QColor>
+#include <QRect>
+#include "block.h"
+
+Block::Block()
+{
+}
+
+Block::Block(const Block &other)
+{
+ m_rect = other.m_rect;
+ m_color = other.m_color;
+}
+
+Block::~Block()
+{
+}
+
+Block::Block(const QRect &rect, const QColor &color)
+{
+ m_rect = rect;
+ m_color = color;
+}
+
+QColor Block::color() const
+{
+ return m_color;
+}
+
+QRect Block::rect() const
+{
+ return m_rect;
+}
diff --git a/examples/threads/queuedcustomtype/block.h b/examples/threads/queuedcustomtype/block.h
new file mode 100644
index 0000000000..1c37f82d0e
--- /dev/null
+++ b/examples/threads/queuedcustomtype/block.h
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BLOCK_H
+#define BLOCK_H
+
+#include <QColor>
+#include <QDebug>
+#include <QMetaType>
+#include <QRect>
+
+//! [custom type definition and meta-type declaration]
+class Block
+{
+public:
+ Block();
+ Block(const Block &other);
+ ~Block();
+
+ Block(const QRect &rect, const QColor &color);
+
+ QColor color() const;
+ QRect rect() const;
+
+private:
+ QRect m_rect;
+ QColor m_color;
+};
+
+Q_DECLARE_METATYPE(Block);
+//! [custom type definition and meta-type declaration]
+
+#endif
diff --git a/examples/threads/queuedcustomtype/main.cpp b/examples/threads/queuedcustomtype/main.cpp
new file mode 100644
index 0000000000..d70a88a095
--- /dev/null
+++ b/examples/threads/queuedcustomtype/main.cpp
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** 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 <QApplication>
+#include <QPainter>
+#include <QTime>
+#include "block.h"
+#include "window.h"
+
+QImage createImage(int width, int height)
+{
+ QImage image(width, height, QImage::Format_RGB16);
+ QPainter painter;
+ QPen pen;
+ pen.setStyle(Qt::NoPen);
+ QBrush brush(Qt::blue);
+
+ painter.begin(&image);
+ painter.fillRect(image.rect(), brush);
+ brush.setColor(Qt::white);
+ painter.setPen(pen);
+ painter.setBrush(brush);
+
+ static const QPointF points1[3] = {
+ QPointF(4, 4),
+ QPointF(7, 4),
+ QPointF(5.5, 1)
+ };
+
+ static const QPointF points2[3] = {
+ QPointF(1, 4),
+ QPointF(7, 4),
+ QPointF(10, 10)
+ };
+
+ static const QPointF points3[3] = {
+ QPointF(4, 4),
+ QPointF(10, 4),
+ QPointF(1, 10)
+ };
+
+ painter.setWindow(0, 0, 10, 10);
+
+ int x = 0;
+ int y = 0;
+ int starWidth = image.width()/3;
+ int starHeight = image.height()/3;
+
+ QRect rect(x, y, starWidth, starHeight);
+
+ for (int i = 0; i < 9; ++i) {
+
+ painter.setViewport(rect);
+ painter.drawPolygon(points1, 3);
+ painter.drawPolygon(points2, 3);
+ painter.drawPolygon(points3, 3);
+
+ if (i % 3 == 2) {
+ y = y + starHeight;
+ rect.moveTop(y);
+
+ x = 0;
+ rect.moveLeft(x);
+
+ } else {
+ x = x + starWidth;
+ rect.moveLeft(x);
+ }
+ }
+
+ painter.end();
+ return image;
+}
+
+//! [main function] //! [main start]
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+//! [main start] //! [register meta-type for queued communications]
+ qRegisterMetaType<Block>();
+//! [register meta-type for queued communications]
+ qsrand(QTime::currentTime().elapsed());
+
+ Window window;
+ window.show();
+
+ window.loadImage(createImage(256, 256));
+//! [main finish]
+ return app.exec();
+}
+//! [main finish] //! [main function]
diff --git a/examples/threads/queuedcustomtype/queuedcustomtype.pro b/examples/threads/queuedcustomtype/queuedcustomtype.pro
new file mode 100644
index 0000000000..6f39121df7
--- /dev/null
+++ b/examples/threads/queuedcustomtype/queuedcustomtype.pro
@@ -0,0 +1,7 @@
+HEADERS = block.h \
+ renderthread.h \
+ window.h
+SOURCES = main.cpp \
+ block.cpp \
+ renderthread.cpp \
+ window.cpp
diff --git a/examples/threads/queuedcustomtype/renderthread.cpp b/examples/threads/queuedcustomtype/renderthread.cpp
new file mode 100644
index 0000000000..a44ac2315a
--- /dev/null
+++ b/examples/threads/queuedcustomtype/renderthread.cpp
@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** 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 "renderthread.h"
+
+RenderThread::RenderThread(QObject *parent)
+ : QThread(parent)
+{
+ m_abort = false;
+}
+
+RenderThread::~RenderThread()
+{
+ mutex.lock();
+ m_abort = true;
+ mutex.unlock();
+
+ wait();
+}
+
+//![processing the image (start)]
+void RenderThread::processImage(const QImage &image)
+{
+ if (image.isNull())
+ return;
+
+ m_image = image;
+ m_abort = false;
+ start();
+}
+
+void RenderThread::run()
+{
+ int size = qMax(m_image.width()/20, m_image.height()/20);
+ for (int s = size; s > 0; --s) {
+ for (int c = 0; c < 400; ++c) {
+//![processing the image (start)]
+ int x1 = qMax(0, (qrand() % m_image.width()) - s/2);
+ int x2 = qMin(x1 + s/2 + 1, m_image.width());
+ int y1 = qMax(0, (qrand() % m_image.height()) - s/2);
+ int y2 = qMin(y1 + s/2 + 1, m_image.height());
+ int n = 0;
+ int red = 0;
+ int green = 0;
+ int blue = 0;
+ for (int i = y1; i < y2; ++i) {
+ for (int j = x1; j < x2; ++j) {
+ QRgb pixel = m_image.pixel(j, i);
+ red += qRed(pixel);
+ green += qGreen(pixel);
+ blue += qBlue(pixel);
+ n += 1;
+ }
+ }
+//![processing the image (finish)]
+ Block block(QRect(x1, y1, x2 - x1 + 1, y2 - y1 + 1),
+ QColor(red/n, green/n, blue/n));
+ emit sendBlock(block);
+ if (m_abort)
+ return;
+ msleep(10);
+ }
+ }
+}
+//![processing the image (finish)]
+
+void RenderThread::stopProcess()
+{
+ mutex.lock();
+ m_abort = true;
+ mutex.unlock();
+}
diff --git a/examples/threads/queuedcustomtype/renderthread.h b/examples/threads/queuedcustomtype/renderthread.h
new file mode 100644
index 0000000000..99f72c3e01
--- /dev/null
+++ b/examples/threads/queuedcustomtype/renderthread.h
@@ -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 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef RENDERTHREAD_H
+#define RENDERTHREAD_H
+
+#include <QImage>
+#include <QMutex>
+#include <QThread>
+#include "block.h"
+
+//! [RenderThread class definition]
+class RenderThread : public QThread
+{
+ Q_OBJECT
+
+public:
+ RenderThread(QObject *parent = 0);
+ ~RenderThread();
+
+ void processImage(const QImage &image);
+
+signals:
+ void sendBlock(const Block &block);
+
+public slots:
+ void stopProcess();
+
+protected:
+ void run();
+
+private:
+ bool m_abort;
+ QImage m_image;
+ QMutex mutex;
+};
+//! [RenderThread class definition]
+
+#endif
diff --git a/examples/threads/queuedcustomtype/window.cpp b/examples/threads/queuedcustomtype/window.cpp
new file mode 100644
index 0000000000..367b75818f
--- /dev/null
+++ b/examples/threads/queuedcustomtype/window.cpp
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** 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 <QtGui>
+#include "window.h"
+
+//! [Window constructor start]
+Window::Window()
+{
+ thread = new RenderThread();
+//! [Window constructor start] //! [set up widgets and connections]
+
+ label = new QLabel();
+ label->setAlignment(Qt::AlignCenter);
+
+ loadButton = new QPushButton(tr("&Load image..."));
+ resetButton = new QPushButton(tr("&Stop"));
+ resetButton->setEnabled(false);
+
+ connect(loadButton, SIGNAL(clicked()), this, SLOT(loadImage()));
+ connect(resetButton, SIGNAL(clicked()), thread, SLOT(stopProcess()));
+ connect(thread, SIGNAL(finished()), this, SLOT(resetUi()));
+//! [set up widgets and connections] //! [connecting signal with custom type]
+ connect(thread, SIGNAL(sendBlock(Block)), this, SLOT(addBlock(Block)));
+//! [connecting signal with custom type]
+
+ QHBoxLayout *buttonLayout = new QHBoxLayout();
+ buttonLayout->addStretch();
+ buttonLayout->addWidget(loadButton);
+ buttonLayout->addWidget(resetButton);
+ buttonLayout->addStretch();
+
+ QVBoxLayout *layout = new QVBoxLayout(this);
+ layout->addWidget(label);
+ layout->addLayout(buttonLayout);
+
+//! [Window constructor finish]
+ setWindowTitle(tr("Queued Custom Type"));
+}
+//! [Window constructor finish]
+
+void Window::loadImage()
+{
+ QStringList formats;
+ foreach (QByteArray format, QImageReader::supportedImageFormats())
+ if (format.toLower() == format)
+ formats.append("*." + format);
+
+ QString newPath = QFileDialog::getOpenFileName(this, tr("Open Image"),
+ path, tr("Image files (%1)").arg(formats.join(" ")));
+
+ if (newPath.isEmpty())
+ return;
+
+ QImage image(newPath);
+ if (!image.isNull()) {
+ loadImage(image);
+ path = newPath;
+ }
+}
+
+void Window::loadImage(const QImage &image)
+{
+ QDesktopWidget desktop;
+ QImage useImage;
+ QRect space = desktop.availableGeometry();
+ if (image.width() > 0.75*space.width() || image.height() > 0.75*space.height())
+ useImage = image.scaled(0.75*space.width(), 0.75*space.height(),
+ Qt::KeepAspectRatio, Qt::SmoothTransformation);
+ else
+ useImage = image;
+
+ pixmap = QPixmap(useImage.width(), useImage.height());
+ pixmap.fill(qRgb(255, 255, 255));
+ label->setPixmap(pixmap);
+ loadButton->setEnabled(false);
+ resetButton->setEnabled(true);
+ thread->processImage(useImage);
+}
+
+//! [Adding blocks to the display]
+void Window::addBlock(const Block &block)
+{
+ QColor color = block.color();
+ color.setAlpha(64);
+
+ QPainter painter;
+ painter.begin(&pixmap);
+ painter.fillRect(block.rect(), color);
+ painter.end();
+ label->setPixmap(pixmap);
+}
+//! [Adding blocks to the display]
+
+void Window::resetUi()
+{
+ loadButton->setEnabled(true);
+ resetButton->setEnabled(false);
+}
diff --git a/examples/threads/queuedcustomtype/window.h b/examples/threads/queuedcustomtype/window.h
new file mode 100644
index 0000000000..539c240cd7
--- /dev/null
+++ b/examples/threads/queuedcustomtype/window.h
@@ -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 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+#include "renderthread.h"
+
+class QLabel;
+class QPushButton;
+
+//! [Window class definition]
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+ void loadImage(const QImage &image);
+
+public slots:
+ void addBlock(const Block &block);
+
+private slots:
+ void loadImage();
+ void resetUi();
+
+private:
+ QLabel *label;
+ QPixmap pixmap;
+ QPushButton *loadButton;
+ QPushButton *resetButton;
+ QString path;
+ RenderThread *thread;
+};
+//! [Window class definition]
+
+#endif