diff options
Diffstat (limited to 'examples/corelib/threads/queuedcustomtype/renderthread.cpp')
-rw-r--r-- | examples/corelib/threads/queuedcustomtype/renderthread.cpp | 82 |
1 files changed, 12 insertions, 70 deletions
diff --git a/examples/corelib/threads/queuedcustomtype/renderthread.cpp b/examples/corelib/threads/queuedcustomtype/renderthread.cpp index 67cedf1e74..34a439f3fe 100644 --- a/examples/corelib/threads/queuedcustomtype/renderthread.cpp +++ b/examples/corelib/threads/queuedcustomtype/renderthread.cpp @@ -1,69 +1,19 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause +#include "block.h" #include "renderthread.h" #include <QRandomGenerator> +#include <QRgb> RenderThread::RenderThread(QObject *parent) : QThread(parent) { - m_abort = false; } RenderThread::~RenderThread() { - mutex.lock(); - m_abort = true; - mutex.unlock(); - wait(); } @@ -74,27 +24,26 @@ void RenderThread::processImage(const QImage &image) return; m_image = image; - m_abort = false; start(); } void RenderThread::run() { - int size = qMax(m_image.width()/20, m_image.height()/20); + const 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, QRandomGenerator::global()->bounded(m_image.width()) - s/2); - int x2 = qMin(x1 + s/2 + 1, m_image.width()); - int y1 = qMax(0, QRandomGenerator::global()->bounded(m_image.height()) - s/2); - int y2 = qMin(y1 + s/2 + 1, m_image.height()); + const int x1 = qMax(0, QRandomGenerator::global()->bounded(m_image.width()) - s/2); + const int x2 = qMin(x1 + s/2 + 1, m_image.width()); + const int y1 = qMax(0, QRandomGenerator::global()->bounded(m_image.height()) - s/2); + const 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); + const QRgb pixel = m_image.pixel(j, i); red += qRed(pixel); green += qGreen(pixel); blue += qBlue(pixel); @@ -102,20 +51,13 @@ void RenderThread::run() } } //![processing the image (finish)] - Block block(QRect(x1, y1, x2 - x1 + 1, y2 - y1 + 1), + const Block block(QRect(x1, y1, x2 - x1 + 1, y2 - y1 + 1), QColor(red/n, green/n, blue/n)); emit sendBlock(block); - if (m_abort) + if (isInterruptionRequested()) return; msleep(10); } } } //![processing the image (finish)] - -void RenderThread::stopProcess() -{ - mutex.lock(); - m_abort = true; - mutex.unlock(); -} |