Revamp examples

Separate gallery example was created for widget and qml examples and
most example code was moved under those two gallery examples.

Examples left outside galleries for various reasons:
- audio: Requires multimedia, which is an optional addon
- openglseries: Requires OpenGL backend
- qmloscilloscope: Complicated hybrid C++/QML example
- qmlweather: Uses optional command line parameter
- zoomlinechart: Uses gestures, which require grabbing main window

Cleaned up the code of the remaining examples to same standard as
galleries.

Examples documentation will be updated in a separate commit.

Task-number: QTBUG-94181
Task-number: QTBUG-111053
Task-number: QTBUG-113655
Change-Id: I6a98a4386364fcb2530e2667aea95760e6ff2983
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
(cherry picked from commit 8f4629814f3df83e9ea85aebefb0e0c9929be476)
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

3 files changed, 0 insertions, 139 deletions

diff --git a/examples/charts/lineandbar/CMakeLists.txt b/examples/charts/lineandbar/CMakeLists.txt
deleted file mode 100644
index 719f698d..00000000
--- a/examples/charts/lineandbar/CMakeLists.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-cmake_minimum_required(VERSION 3.16)
-project(lineandbar LANGUAGES CXX)
-
-set(CMAKE_AUTOMOC ON)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/charts/lineandbar")
-
-find_package(Qt6 REQUIRED COMPONENTS Charts Core Gui)
-
-qt_add_executable(lineandbar
-    main.cpp
-)
-
-set_target_properties(lineandbar PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-
-target_link_libraries(lineandbar PUBLIC
-    Qt::Charts
-    Qt::Core
-    Qt::Gui
-)
-
-install(TARGETS lineandbar
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/charts/lineandbar/lineandbar.pro b/examples/charts/lineandbar/lineandbar.pro
deleted file mode 100644
index 073cca49..00000000
--- a/examples/charts/lineandbar/lineandbar.pro
+++ /dev/null
@@ -1,7 +0,0 @@
-QT += charts
-
-SOURCES += \
-    main.cpp
-
-target.path = $$[QT_INSTALL_EXAMPLES]/charts/lineandbar
-INSTALLS += target
diff --git a/examples/charts/lineandbar/main.cpp b/examples/charts/lineandbar/main.cpp
deleted file mode 100644
index 1e3e35c5..00000000
--- a/examples/charts/lineandbar/main.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
-
-#include <QtWidgets/QApplication>
-#include <QtWidgets/QMainWindow>
-#include <QtCharts/QChartView>
-#include <QtCharts/QBarSeries>
-#include <QtCharts/QBarSet>
-#include <QtCharts/QLineSeries>
-#include <QtCharts/QLegend>
-#include <QtCharts/QBarCategoryAxis>
-#include <QtCharts/QValueAxis>
-
-QT_USE_NAMESPACE
-
-int main(int argc, char *argv[])
-{
-    QApplication a(argc, argv);
-
-//![1]
-    QBarSet *set0 = new QBarSet("Jane");
-    QBarSet *set1 = new QBarSet("John");
-    QBarSet *set2 = new QBarSet("Axel");
-    QBarSet *set3 = new QBarSet("Mary");
-    QBarSet *set4 = new QBarSet("Sam");
-
-    *set0 << 1 << 2 << 3 << 4 << 5 << 6;
-    *set1 << 5 << 0 << 0 << 4 << 0 << 7;
-    *set2 << 3 << 5 << 8 << 13 << 8 << 5;
-    *set3 << 5 << 6 << 7 << 3 << 4 << 5;
-    *set4 << 9 << 7 << 5 << 3 << 1 << 2;
-//![1]
-
-//![2]
-    QBarSeries *barseries = new QBarSeries();
-    barseries->append(set0);
-    barseries->append(set1);
-    barseries->append(set2);
-    barseries->append(set3);
-    barseries->append(set4);
-//![2]
-
-//![8]
-    QLineSeries *lineseries = new QLineSeries();
-    lineseries->setName("trend");
-    lineseries->append(QPoint(0, 4));
-    lineseries->append(QPoint(1, 15));
-    lineseries->append(QPoint(2, 20));
-    lineseries->append(QPoint(3, 4));
-    lineseries->append(QPoint(4, 12));
-    lineseries->append(QPoint(5, 17));
-//![8]
-
-//![3]
-    QChart *chart = new QChart();
-    chart->addSeries(barseries);
-    chart->addSeries(lineseries);
-    chart->setTitle("Line and barchart example");
-//![3]
-
-//![4]
-    QStringList categories;
-    categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
-    QBarCategoryAxis *axisX = new QBarCategoryAxis();
-    axisX->append(categories);
-    chart->addAxis(axisX, Qt::AlignBottom);
-    lineseries->attachAxis(axisX);
-    barseries->attachAxis(axisX);
-    axisX->setRange(QString("Jan"), QString("Jun"));
-
-    QValueAxis *axisY = new QValueAxis();
-    chart->addAxis(axisY, Qt::AlignLeft);
-    lineseries->attachAxis(axisY);
-    barseries->attachAxis(axisY);
-    axisY->setRange(0, 20);
-//![4]
-
-//![5]
-    chart->legend()->setVisible(true);
-    chart->legend()->setAlignment(Qt::AlignBottom);
-//![5]
-
-//![6]
-    QChartView *chartView = new QChartView(chart);
-    chartView->setRenderHint(QPainter::Antialiasing);
-//![6]
-
-//![7]
-    QMainWindow window;
-    window.setCentralWidget(chartView);
-    window.resize(440, 300);
-    window.show();
-//![7]
-
-    return a.exec();
-}