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, 239 deletions

diff --git a/examples/threads/mandelbrot/mandelbrotwidget.cpp b/examples/threads/mandelbrot/mandelbrotwidget.cpp
deleted file mode 100644
index 633d4a1ec5..0000000000
--- a/examples/threads/mandelbrot/mandelbrotwidget.cpp
+++ /dev/null
@@ -1,239 +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 <QPainter>
-#include <QKeyEvent>
-
-#include <math.h>
-
-#include "mandelbrotwidget.h"
-
-
-//! [0]
-const double DefaultCenterX = -0.637011f;
-const double DefaultCenterY = -0.0395159f;
-const double DefaultScale = 0.00403897f;
-
-const double ZoomInFactor = 0.8f;
-const double ZoomOutFactor = 1 / ZoomInFactor;
-const int ScrollStep = 20;
-//! [0]
-
-//! [1]
-MandelbrotWidget::MandelbrotWidget(QWidget *parent)
-    : QWidget(parent)
-{
-    centerX = DefaultCenterX;
-    centerY = DefaultCenterY;
-    pixmapScale = DefaultScale;
-    curScale = DefaultScale;
-
-    connect(&thread, SIGNAL(renderedImage(QImage,double)), this, SLOT(updatePixmap(QImage,double)));
-
-    setWindowTitle(tr("Mandelbrot"));
-#ifndef QT_NO_CURSOR
-    setCursor(Qt::CrossCursor);
-#endif
-    resize(550, 400);
-
-}
-//! [1]
-
-//! [2]
-void MandelbrotWidget::paintEvent(QPaintEvent * /* event */)
-{
-    QPainter painter(this);
-    painter.fillRect(rect(), Qt::black);
-
-    if (pixmap.isNull()) {
-        painter.setPen(Qt::white);
-        painter.drawText(rect(), Qt::AlignCenter, tr("Rendering initial image, please wait..."));
-//! [2] //! [3]
-        return;
-//! [3] //! [4]
-    }
-//! [4]
-
-//! [5]
-    if (curScale == pixmapScale) {
-//! [5] //! [6]
-        painter.drawPixmap(pixmapOffset, pixmap);
-//! [6] //! [7]
-    } else {
-//! [7] //! [8]
-        double scaleFactor = pixmapScale / curScale;
-        int newWidth = int(pixmap.width() * scaleFactor);
-        int newHeight = int(pixmap.height() * scaleFactor);
-        int newX = pixmapOffset.x() + (pixmap.width() - newWidth) / 2;
-        int newY = pixmapOffset.y() + (pixmap.height() - newHeight) / 2;
-
-        painter.save();
-        painter.translate(newX, newY);
-        painter.scale(scaleFactor, scaleFactor);
-        QRectF exposed = painter.matrix().inverted().mapRect(rect()).adjusted(-1, -1, 1, 1);
-        painter.drawPixmap(exposed, pixmap, exposed);
-        painter.restore();
-    }
-//! [8] //! [9]
-
-    QString text = tr("Use mouse wheel or the '+' and '-' keys to zoom. "
-                      "Press and hold left mouse button to scroll.");
-    QFontMetrics metrics = painter.fontMetrics();
-    int textWidth = metrics.width(text);
-
-    painter.setPen(Qt::NoPen);
-    painter.setBrush(QColor(0, 0, 0, 127));
-    painter.drawRect((width() - textWidth) / 2 - 5, 0, textWidth + 10, metrics.lineSpacing() + 5);
-    painter.setPen(Qt::white);
-    painter.drawText((width() - textWidth) / 2, metrics.leading() + metrics.ascent(), text);
-}
-//! [9]
-
-//! [10]
-void MandelbrotWidget::resizeEvent(QResizeEvent * /* event */)
-{
-    thread.render(centerX, centerY, curScale, size());
-}
-//! [10]
-
-//! [11]
-void MandelbrotWidget::keyPressEvent(QKeyEvent *event)
-{
-    switch (event->key()) {
-    case Qt::Key_Plus:
-        zoom(ZoomInFactor);
-        break;
-    case Qt::Key_Minus:
-        zoom(ZoomOutFactor);
-        break;
-    case Qt::Key_Left:
-        scroll(-ScrollStep, 0);
-        break;
-    case Qt::Key_Right:
-        scroll(+ScrollStep, 0);
-        break;
-    case Qt::Key_Down:
-        scroll(0, -ScrollStep);
-        break;
-    case Qt::Key_Up:
-        scroll(0, +ScrollStep);
-        break;
-    default:
-        QWidget::keyPressEvent(event);
-    }
-}
-//! [11]
-
-#ifndef QT_NO_WHEELEVENT
-//! [12]
-void MandelbrotWidget::wheelEvent(QWheelEvent *event)
-{
-    int numDegrees = event->delta() / 8;
-    double numSteps = numDegrees / 15.0f;
-    zoom(pow(ZoomInFactor, numSteps));
-}
-//! [12]
-#endif
-
-//! [13]
-void MandelbrotWidget::mousePressEvent(QMouseEvent *event)
-{
-    if (event->button() == Qt::LeftButton)
-        lastDragPos = event->pos();
-}
-//! [13]
-
-//! [14]
-void MandelbrotWidget::mouseMoveEvent(QMouseEvent *event)
-{
-    if (event->buttons() & Qt::LeftButton) {
-        pixmapOffset += event->pos() - lastDragPos;
-        lastDragPos = event->pos();
-        update();
-    }
-}
-//! [14]
-
-//! [15]
-void MandelbrotWidget::mouseReleaseEvent(QMouseEvent *event)
-{
-    if (event->button() == Qt::LeftButton) {
-        pixmapOffset += event->pos() - lastDragPos;
-        lastDragPos = QPoint();
-
-        int deltaX = (width() - pixmap.width()) / 2 - pixmapOffset.x();
-        int deltaY = (height() - pixmap.height()) / 2 - pixmapOffset.y();
-        scroll(deltaX, deltaY);
-    }
-}
-//! [15]
-
-//! [16]
-void MandelbrotWidget::updatePixmap(const QImage &image, double scaleFactor)
-{
-    if (!lastDragPos.isNull())
-        return;
-
-    pixmap = QPixmap::fromImage(image);
-    pixmapOffset = QPoint();
-    lastDragPos = QPoint();
-    pixmapScale = scaleFactor;
-    update();
-}
-//! [16]
-
-//! [17]
-void MandelbrotWidget::zoom(double zoomFactor)
-{
-    curScale *= zoomFactor;
-    update();
-    thread.render(centerX, centerY, curScale, size());
-}
-//! [17]
-
-//! [18]
-void MandelbrotWidget::scroll(int deltaX, int deltaY)
-{
-    centerX += deltaX * curScale;
-    centerY += deltaY * curScale;
-    update();
-    thread.render(centerX, centerY, curScale, size());
-}
-//! [18]