Move Qt Core examples under a common subdirectory

Qt Core examples were scattered into several subdirectories under
qtbase/examples. This caused an issue with the example manifest
file generated by QDoc; it expects to find all examples under a
common directory in order to produde correct paths to the example
.pro files. Qt Creator will not find the examples without a valid
manifest file.

This change moves the examples and edits the documentation files
accordingly.

Task-number: QTBUG-41963
Change-Id: I51d86782e0ba21c5c9bae5f15401ec774abe5cf8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>

1 files changed, 0 insertions, 215 deletions

diff --git a/examples/threads/mandelbrot/renderthread.cpp b/examples/threads/mandelbrot/renderthread.cpp
deleted file mode 100644
index 5779c65c9c..0000000000
--- a/examples/threads/mandelbrot/renderthread.cpp
+++ /dev/null
@@ -1,215 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** 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 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 "renderthread.h"
-
-#include <QtWidgets>
-
-#include <math.h>
-
-//! [0]
-RenderThread::RenderThread(QObject *parent)
-    : QThread(parent)
-{
-    restart = false;
-    abort = false;
-
-    for (int i = 0; i < ColormapSize; ++i)
-        colormap[i] = rgbFromWaveLength(380.0 + (i * 400.0 / ColormapSize));
-}
-//! [0]
-
-//! [1]
-RenderThread::~RenderThread()
-{
-    mutex.lock();
-    abort = true;
-    condition.wakeOne();
-    mutex.unlock();
-
-    wait();
-}
-//! [1]
-
-//! [2]
-void RenderThread::render(double centerX, double centerY, double scaleFactor,
-                          QSize resultSize)
-{
-    QMutexLocker locker(&mutex);
-
-    this->centerX = centerX;
-    this->centerY = centerY;
-    this->scaleFactor = scaleFactor;
-    this->resultSize = resultSize;
-
-    if (!isRunning()) {
-        start(LowPriority);
-    } else {
-        restart = true;
-        condition.wakeOne();
-    }
-}
-//! [2]
-
-//! [3]
-void RenderThread::run()
-{
-    forever {
-        mutex.lock();
-        QSize resultSize = this->resultSize;
-        double scaleFactor = this->scaleFactor;
-        double centerX = this->centerX;
-        double centerY = this->centerY;
-        mutex.unlock();
-//! [3]
-
-//! [4]
-        int halfWidth = resultSize.width() / 2;
-//! [4] //! [5]
-        int halfHeight = resultSize.height() / 2;
-        QImage image(resultSize, QImage::Format_RGB32);
-
-        const int NumPasses = 8;
-        int pass = 0;
-        while (pass < NumPasses) {
-            const int MaxIterations = (1 << (2 * pass + 6)) + 32;
-            const int Limit = 4;
-            bool allBlack = true;
-
-            for (int y = -halfHeight; y < halfHeight; ++y) {
-                if (restart)
-                    break;
-                if (abort)
-                    return;
-
-                uint *scanLine =
-                        reinterpret_cast<uint *>(image.scanLine(y + halfHeight));
-                double ay = centerY + (y * scaleFactor);
-
-                for (int x = -halfWidth; x < halfWidth; ++x) {
-                    double ax = centerX + (x * scaleFactor);
-                    double a1 = ax;
-                    double b1 = ay;
-                    int numIterations = 0;
-
-                    do {
-                        ++numIterations;
-                        double a2 = (a1 * a1) - (b1 * b1) + ax;
-                        double b2 = (2 * a1 * b1) + ay;
-                        if ((a2 * a2) + (b2 * b2) > Limit)
-                            break;
-
-                        ++numIterations;
-                        a1 = (a2 * a2) - (b2 * b2) + ax;
-                        b1 = (2 * a2 * b2) + ay;
-                        if ((a1 * a1) + (b1 * b1) > Limit)
-                            break;
-                    } while (numIterations < MaxIterations);
-
-                    if (numIterations < MaxIterations) {
-                        *scanLine++ = colormap[numIterations % ColormapSize];
-                        allBlack = false;
-                    } else {
-                        *scanLine++ = qRgb(0, 0, 0);
-                    }
-                }
-            }
-
-            if (allBlack && pass == 0) {
-                pass = 4;
-            } else {
-                if (!restart)
-                    emit renderedImage(image, scaleFactor);
-//! [5] //! [6]
-                ++pass;
-            }
-//! [6] //! [7]
-        }
-//! [7]
-
-//! [8]
-        mutex.lock();
-//! [8] //! [9]
-        if (!restart)
-            condition.wait(&mutex);
-        restart = false;
-        mutex.unlock();
-    }
-}
-//! [9]
-
-//! [10]
-uint RenderThread::rgbFromWaveLength(double wave)
-{
-    double r = 0.0;
-    double g = 0.0;
-    double b = 0.0;
-
-    if (wave >= 380.0 && wave <= 440.0) {
-        r = -1.0 * (wave - 440.0) / (440.0 - 380.0);
-        b = 1.0;
-    } else if (wave >= 440.0 && wave <= 490.0) {
-        g = (wave - 440.0) / (490.0 - 440.0);
-        b = 1.0;
-    } else if (wave >= 490.0 && wave <= 510.0) {
-        g = 1.0;
-        b = -1.0 * (wave - 510.0) / (510.0 - 490.0);
-    } else if (wave >= 510.0 && wave <= 580.0) {
-        r = (wave - 510.0) / (580.0 - 510.0);
-        g = 1.0;
-    } else if (wave >= 580.0 && wave <= 645.0) {
-        r = 1.0;
-        g = -1.0 * (wave - 645.0) / (645.0 - 580.0);
-    } else if (wave >= 645.0 && wave <= 780.0) {
-        r = 1.0;
-    }
-
-    double s = 1.0;
-    if (wave > 700.0)
-        s = 0.3 + 0.7 * (780.0 - wave) / (780.0 - 700.0);
-    else if (wave <  420.0)
-        s = 0.3 + 0.7 * (wave - 380.0) / (420.0 - 380.0);
-
-    r = pow(r * s, 0.8);
-    g = pow(g * s, 0.8);
-    b = pow(b * s, 0.8);
-    return qRgb(int(r * 255), int(g * 255), int(b * 255));
-}
-//! [10]