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, 188 deletions

diff --git a/examples/ipc/sharedmemory/dialog.cpp b/examples/ipc/sharedmemory/dialog.cpp
deleted file mode 100644
index c504f3a202..0000000000
--- a/examples/ipc/sharedmemory/dialog.cpp
+++ /dev/null
@@ -1,188 +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 "dialog.h"
-#include <QFileDialog>
-#include <QBuffer>
-#include <QtCore/QDebug>
-
-/*!
-  \class Dialog
-
-  \brief This class is a simple example of how to use QSharedMemory.
-
-  It is a simple dialog that presents a few buttons. To compile the
-  example, run make in qt/examples/ipc. Then run the executable twice
-  to create two processes running the dialog. In one of the processes,
-  press the button to load an image into a shared memory segment, and
-  then select an image file to load. Once the first process has loaded
-  and displayed the image, in the second process, press the button to
-  read the same image from shared memory. The second process displays
-  the same image loaded from its new loaction in shared memory.
-*/
-
-/*!
-  The class contains a data member \l {QSharedMemory} {sharedMemory},
-  which is initialized with the key "QSharedMemoryExample" to force
-  all instances of Dialog to access the same shared memory segment.
-  The constructor also connects the clicked() signal from each of the
-  three dialog buttons to the slot function appropriate for handling
-  each button.
-*/
-//! [0]
-Dialog::Dialog(QWidget *parent)
-  : QDialog(parent), sharedMemory("QSharedMemoryExample")
-{
-    ui.setupUi(this);
-    connect(ui.loadFromFileButton, SIGNAL(clicked()), SLOT(loadFromFile()));
-    connect(ui.loadFromSharedMemoryButton,
-            SIGNAL(clicked()),
-            SLOT(loadFromMemory()));
-    setWindowTitle(tr("SharedMemory Example"));
-}
-//! [0]
-
-/*!
-  This slot function is called when the \tt {Load Image From File...}
-  button is pressed on the firs Dialog process. First, it tests
-  whether the process is already connected to a shared memory segment
-  and, if so, detaches from that segment. This ensures that we always
-  start the example from the beginning if we run it multiple times
-  with the same two Dialog processes. After detaching from an existing
-  shared memory segment, the user is prompted to select an image file.
-  The selected file is loaded into a QImage. The QImage is displayed
-  in the Dialog and streamed into a QBuffer with a QDataStream.
-
-  Next, it gets a new shared memory segment from the system big enough
-  to hold the image data in the QBuffer, and it locks the segment to
-  prevent the second Dialog process from accessing it. Then it copies
-  the image from the QBuffer into the shared memory segment. Finally,
-  it unlocks the shared memory segment so the second Dialog process
-  can access it.
-
-  After this function runs, the user is expected to press the \tt
-  {Load Image from Shared Memory} button on the second Dialog process.
-
-  \sa loadFromMemory()
- */
-//! [1]
-void Dialog::loadFromFile()
-{
-    if (sharedMemory.isAttached())
-        detach();
-
-    ui.label->setText(tr("Select an image file"));
-    QString fileName = QFileDialog::getOpenFileName(0, QString(), QString(),
-                                        tr("Images (*.png *.xpm *.jpg)"));
-    QImage image;
-    if (!image.load(fileName)) {
-        ui.label->setText(tr("Selected file is not an image, please select another."));
-        return;
-    }
-    ui.label->setPixmap(QPixmap::fromImage(image));
-//! [1] //! [2]
-
-    // load into shared memory
-    QBuffer buffer;
-    buffer.open(QBuffer::ReadWrite);
-    QDataStream out(&buffer);
-    out << image;
-    int size = buffer.size();
-
-    if (!sharedMemory.create(size)) {
-        ui.label->setText(tr("Unable to create shared memory segment."));
-        return;
-    }
-    sharedMemory.lock();
-    char *to = (char*)sharedMemory.data();
-    const char *from = buffer.data().data();
-    memcpy(to, from, qMin(sharedMemory.size(), size));
-    sharedMemory.unlock();
-}
-//! [2]
-
-/*!
-  This slot function is called in the second Dialog process, when the
-  user presses the \tt {Load Image from Shared Memory} button. First,
-  it attaches the process to the shared memory segment created by the
-  first Dialog process. Then it locks the segment for exclusive
-  access, copies the image data from the segment into a QBuffer, and
-  streams the QBuffer into a QImage. Then it unlocks the shared memory
-  segment, detaches from it, and finally displays the QImage in the
-  Dialog.
-
-  \sa loadFromFile()
- */
-//! [3]
-void Dialog::loadFromMemory()
-{
-    if (!sharedMemory.attach()) {
-        ui.label->setText(tr("Unable to attach to shared memory segment.\n" \
-                             "Load an image first."));
-        return;
-    }
-
-    QBuffer buffer;
-    QDataStream in(&buffer);
-    QImage image;
-
-    sharedMemory.lock();
-    buffer.setData((char*)sharedMemory.constData(), sharedMemory.size());
-    buffer.open(QBuffer::ReadOnly);
-    in >> image;
-    sharedMemory.unlock();
-
-    sharedMemory.detach();
-    ui.label->setPixmap(QPixmap::fromImage(image));
-}
-//! [3]
-
-/*!
-  This private function is called by the destructor to detach the
-  process from its shared memory segment. When the last process
-  detaches from a shared memory segment, the system releases the
-  shared memory.
- */
-void Dialog::detach()
-{
-    if (!sharedMemory.detach())
-        ui.label->setText(tr("Unable to detach from shared memory."));
-}
-