diff options
author | Casper van Donderen <casper.vandonderen@nokia.com> | 2012-05-07 11:33:42 +0200 |
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committer | Marius Storm-Olsen <marius.storm-olsen@nokia.com> | 2012-05-09 08:36:06 +0200 |
commit | 4548022ee27259b85a41a8df2ad28a99f1af7eed (patch) | |
tree | b74da582d3d1219984828a012be0efca12ff8235 /doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp | |
parent | a409cebe3d780eaae46e9ce7b19faa949059ec8e (diff) |
Doc: Modularize QtConcurrent documentation.
This change moves the snippets and images to the modularized directories.
Change-Id: If52f69c0f8bb4d2df4ee46f5524a82047ec214de
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
Diffstat (limited to 'doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp')
-rw-r--r-- | doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp b/doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp deleted file mode 100644 index 9b83ad5bef..0000000000 --- a/doc/src/snippets/code/src_corelib_concurrent_qtconcurrentmap.cpp +++ /dev/null @@ -1,184 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the documentation 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -//! [0] -U function(const T &t); -//! [0] - - -//! [1] -QImage scaled(const QImage &image) -{ - return image.scaled(100, 100); -} - -QList<QImage> images = ...; -QFuture<QImage> thumbnails = QtConcurrent::mapped(images, scaled); -//! [1] - - -//! [2] -U function(T &t); -//! [2] - - -//! [3] -void scale(QImage &image) -{ - image = image.scaled(100, 100); -} - -QList<QImage> images = ...; -QFuture<void> future = QtConcurrent::map(images, scale); -//! [3] - - -//! [4] -V function(T &result, const U &intermediate) -//! [4] - - -//! [5] -void addToCollage(QImage &collage, const QImage &thumbnail) -{ - QPainter p(&collage); - static QPoint offset = QPoint(0, 0); - p.drawImage(offset, thumbnail); - offset += ...; -} - -QList<QImage> images = ...; -QFuture<QImage> collage = QtConcurrent::mappedReduced(images, scaled, addToCollage); -//! [5] - - -//! [6] -QList<QImage> images = ...; - -QFuture<QImage> thumbnails = QtConcurrent::mapped(images.constBegin(), images.constEnd(), scaled); - -// map in-place only works on non-const iterators -QFuture<void> future = QtConcurrent::map(images.begin(), images.end(), scale); - -QFuture<QImage> collage = QtConcurrent::mappedReduced(images.constBegin(), images.constEnd(), scaled, addToCollage); -//! [6] - - -//! [7] -QList<QImage> images = ...; - -// each call blocks until the entire operation is finished -QList<QImage> future = QtConcurrent::blockingMapped(images, scaled); - -QtConcurrent::blockingMap(images, scale); - -QImage collage = QtConcurrent::blockingMappedReduced(images, scaled, addToCollage); -//! [7] - - -//! [8] -// squeeze all strings in a QStringList -QStringList strings = ...; -QFuture<void> squeezedStrings = QtConcurrent::map(strings, &QString::squeeze); - -// swap the rgb values of all pixels on a list of images -QList<QImage> images = ...; -QFuture<QImage> bgrImages = QtConcurrent::mapped(images, &QImage::rgbSwapped); - -// create a set of the lengths of all strings in a list -QStringList strings = ...; -QFuture<QSet<int> > wordLengths = QtConcurrent::mappedReduced(string, &QString::length, &QSet<int>::insert); -//! [8] - - -//! [9] -// can mix normal functions and member functions with QtConcurrent::mappedReduced() - -// compute the average length of a list of strings -extern void computeAverage(int &average, int length); -QStringList strings = ...; -QFuture<int> averageWordLength = QtConcurrent::mappedReduced(strings, &QString::length, computeAverage); - -// create a set of the color distribution of all images in a list -extern int colorDistribution(const QImage &string); -QList<QImage> images = ...; -QFuture<QSet<int> > totalColorDistribution = QtConcurrent::mappedReduced(images, colorDistribution, QSet<int>::insert); -//! [9] - - -//! [10] -QImage QImage::scaledToWidth(int width, Qt::TransformationMode) const; -//! [10] - - -//! [11] -boost::bind(&QImage::scaledToWidth, 100, Qt::SmoothTransformation) -//! [11] - - -//! [12] -QImage scaledToWith(const QImage &image) -//! [12] - - -//! [13] -QList<QImage> images = ...; -QFuture<QImage> thumbnails = QtConcurrent::mapped(images, boost::bind(&QImage::scaledToWidth, 100 Qt::SmoothTransformation)); -//! [13] - -//! [14] -struct Scaled -{ - Scaled(int size) - : m_size(size) { } - - typedef QImage result_type; - - QImage operator()(const QImage &image) - { - return image.scaled(m_size, m_size); - } - - int m_size; -}; - -QList<QImage> images = ...; -QFuture<QImage> thumbnails = QtConcurrent::mapped(images, Scaled(100)); -//! [14] |