Example: rename progressdialog to primecounter and modernize it

The previous example finished way too quickly and provided no real
value in regards to API understanding. Previously, QtConcurrent::map
was used, which was also used in other examples. We are now using
QtConcurrent::filterReduce to demonstrate other functionality.

Task-number: QTBUG-111165
Change-Id: Ibd6eb119d0711cddfe8b211d460e9d67d6ce95c3
Reviewed-by: Mårten Nordheim <[email protected]>
Reviewed-by: Ivan Solovev <[email protected]>
(cherry picked from commit 8352756d27e5657390b6e87f45e0c0bae6b7784e)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>

5 files changed, 0 insertions, 111 deletions

diff --git a/examples/qtconcurrent/progressdialog/CMakeLists.txt b/examples/qtconcurrent/progressdialog/CMakeLists.txt
deleted file mode 100644
index 5609572d95b..00000000000
--- a/examples/qtconcurrent/progressdialog/CMakeLists.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-cmake_minimum_required(VERSION 3.16)
-project(progressdialog LANGUAGES CXX)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/qtconcurrent/progressdialog")
-
-find_package(Qt6 REQUIRED COMPONENTS Concurrent Core Gui Widgets)
-
-qt_standard_project_setup()
-
-qt_add_executable(progressdialog
-    main.cpp
-)
-
-set_target_properties(progressdialog PROPERTIES
-    WIN32_EXECUTABLE FALSE
-    MACOSX_BUNDLE TRUE
-)
-
-target_link_libraries(progressdialog PRIVATE
-    Qt6::Concurrent
-    Qt6::Core
-    Qt6::Gui
-    Qt6::Widgets
-)
-
-install(TARGETS progressdialog
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/qtconcurrent/progressdialog/doc/images/qtconcurrent-progressdialog.png b/examples/qtconcurrent/progressdialog/doc/images/qtconcurrent-progressdialog.png
deleted file mode 100644
index 2e8b7735ad3..00000000000
--- a/examples/qtconcurrent/progressdialog/doc/images/qtconcurrent-progressdialog.png
+++ /dev/null
diff --git a/examples/qtconcurrent/progressdialog/doc/src/qtconcurrent-progressdialog.qdoc b/examples/qtconcurrent/progressdialog/doc/src/qtconcurrent-progressdialog.qdoc
deleted file mode 100644
index 103dbda8bac..00000000000
--- a/examples/qtconcurrent/progressdialog/doc/src/qtconcurrent-progressdialog.qdoc
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
-
-/*!
-    \example progressdialog
-    \title QtConcurrent Progress Dialog Example
-    \brief Demonstrates how to monitor the progress of the active processes.
-    \ingroup qtconcurrentexamples
-
-    The QtConcurrent Progress Dialog example shows how to use the
-    QFutureWatcher class to monitor the progress of a long-running operation.
-
-    \image qtconcurrent-progressdialog.png
-*/
diff --git a/examples/qtconcurrent/progressdialog/main.cpp b/examples/qtconcurrent/progressdialog/main.cpp
deleted file mode 100644
index 702f59e910d..00000000000
--- a/examples/qtconcurrent/progressdialog/main.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include <QtWidgets>
-#include <QtConcurrent>
-
-#include <functional>
-
-using namespace QtConcurrent;
-
-int main(int argc, char **argv)
-{
-    QApplication app(argc, argv);
-
-    const int iterations = 20;
-
-    // Prepare the list.
-    QList<int> list;
-    for (int i = 0; i < iterations; ++i)
-        list.append(i);
-
-    // Create a progress dialog.
-    QProgressDialog dialog;
-    dialog.setLabelText(QString("Progressing using %1 thread(s)...").arg(QThread::idealThreadCount()));
-
-    // Create a QFutureWatcher and connect signals and slots.
-    QFutureWatcher<void> futureWatcher;
-    QObject::connect(&futureWatcher, &QFutureWatcher<void>::finished, &dialog, &QProgressDialog::reset);
-    QObject::connect(&dialog, &QProgressDialog::canceled, &futureWatcher, &QFutureWatcher<void>::cancel);
-    QObject::connect(&futureWatcher,  &QFutureWatcher<void>::progressRangeChanged, &dialog, &QProgressDialog::setRange);
-    QObject::connect(&futureWatcher, &QFutureWatcher<void>::progressValueChanged,  &dialog, &QProgressDialog::setValue);
-
-    // Our function to compute
-    std::function<void(int&)> spin = [](int &iteration) {
-        const int work = 1000 * 1000 * 40;
-        volatile int v = 0;
-        for (int j = 0; j < work; ++j)
-            ++v;
-
-        qDebug() << "iteration" << iteration << "in thread" << QThread::currentThreadId();
-    };
-
-    // Start the computation.
-    futureWatcher.setFuture(QtConcurrent::map(list, spin));
-
-    // Display the dialog and start the event loop.
-    dialog.exec();
-
-    futureWatcher.waitForFinished();
-
-    // Query the future to check if was canceled.
-    qDebug() << "Canceled?" << futureWatcher.future().isCanceled();
-}
diff --git a/examples/qtconcurrent/progressdialog/progressdialog.pro b/examples/qtconcurrent/progressdialog/progressdialog.pro
deleted file mode 100644
index 8a5b3aabb77..00000000000
--- a/examples/qtconcurrent/progressdialog/progressdialog.pro
+++ /dev/null
@@ -1,7 +0,0 @@
-QT += concurrent widgets
-CONFIG += console
-
-SOURCES += main.cpp
-
-target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/progressdialog
-INSTALLS += target