qt 6.5.1 original

examples/widgets/itemviews/combowidgetmapper/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(combowidgetmapper LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/itemviews/combowidgetmapper")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(combowidgetmapper
+    main.cpp
+    window.cpp window.h
+)
+
+set_target_properties(combowidgetmapper PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(combowidgetmapper PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+install(TARGETS combowidgetmapper
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/widgets/itemviews/combowidgetmapper/combowidgetmapper.pro

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+QT += widgets
+requires(qtConfig(combobox))
+
+HEADERS   = window.h
+SOURCES   = main.cpp \
+            window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/itemviews/combowidgetmapper
+INSTALLS += target
+

examples/widgets/itemviews/combowidgetmapper/main.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+
+#include "window.h"
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    Window window;
+    window.show();
+    return app.exec();
+}

examples/widgets/itemviews/combowidgetmapper/window.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+#include "window.h"
+
+//! [Set up widgets]
+Window::Window(QWidget *parent)
+    : QWidget(parent)
+{
+    setupModel();
+
+    nameLabel = new QLabel(tr("Na&me:"));
+    nameEdit = new QLineEdit();
+    addressLabel = new QLabel(tr("&Address:"));
+    addressEdit = new QTextEdit();
+    typeLabel = new QLabel(tr("&Type:"));
+    typeComboBox = new QComboBox();
+    nextButton = new QPushButton(tr("&Next"));
+    previousButton = new QPushButton(tr("&Previous"));
+
+    nameLabel->setBuddy(nameEdit);
+    addressLabel->setBuddy(addressEdit);
+    typeLabel->setBuddy(typeComboBox);
+
+    typeComboBox->setModel(typeModel);
+//! [Set up widgets]
+
+//! [Set up the mapper]
+    mapper = new QDataWidgetMapper(this);
+    mapper->setModel(model);
+    mapper->addMapping(nameEdit, 0);
+    mapper->addMapping(addressEdit, 1);
+    mapper->addMapping(typeComboBox, 2, "currentIndex");
+//! [Set up the mapper]
+
+//! [Set up connections and layouts]
+    connect(previousButton, &QAbstractButton::clicked,
+            mapper, &QDataWidgetMapper::toPrevious);
+    connect(nextButton, &QAbstractButton::clicked,
+            mapper, &QDataWidgetMapper::toNext);
+    connect(mapper, &QDataWidgetMapper::currentIndexChanged,
+            this, &Window::updateButtons);
+
+    QGridLayout *layout = new QGridLayout();
+    layout->addWidget(nameLabel, 0, 0, 1, 1);
+    layout->addWidget(nameEdit, 0, 1, 1, 1);
+    layout->addWidget(previousButton, 0, 2, 1, 1);
+    layout->addWidget(addressLabel, 1, 0, 1, 1);
+    layout->addWidget(addressEdit, 1, 1, 2, 1);
+    layout->addWidget(nextButton, 1, 2, 1, 1);
+    layout->addWidget(typeLabel, 3, 0, 1, 1);
+    layout->addWidget(typeComboBox, 3, 1, 1, 1);
+    setLayout(layout);
+
+    setWindowTitle(tr("Delegate Widget Mapper"));
+    mapper->toFirst();
+}
+//! [Set up connections and layouts]
+
+//! [Set up the model]
+void Window::setupModel()
+{
+    QStringList items;
+    items << tr("Home") << tr("Work") << tr("Other");
+    typeModel = new QStringListModel(items, this);
+
+    model = new QStandardItemModel(5, 3, this);
+    QStringList names;
+    names << "Alice" << "Bob" << "Carol" << "Donald" << "Emma";
+    QStringList addresses;
+    addresses << "<qt>123 Main Street<br/>Market Town</qt>"
+              << "<qt>PO Box 32<br/>Mail Handling Service"
+                 "<br/>Service City</qt>"
+              << "<qt>The Lighthouse<br/>Remote Island</qt>"
+              << "<qt>47338 Park Avenue<br/>Big City</qt>"
+              << "<qt>Research Station<br/>Base Camp<br/>Big Mountain</qt>";
+
+    QStringList types;
+    types << "0" << "1" << "2" << "0" << "2";
+
+    for (int row = 0; row < 5; ++row) {
+      QStandardItem *item = new QStandardItem(names[row]);
+      model->setItem(row, 0, item);
+      item = new QStandardItem(addresses[row]);
+      model->setItem(row, 1, item);
+      item = new QStandardItem(types[row]);
+      model->setItem(row, 2, item);
+    }
+}
+//! [Set up the model]
+
+//! [Slot for updating the buttons]
+void Window::updateButtons(int row)
+{
+    previousButton->setEnabled(row > 0);
+    nextButton->setEnabled(row < model->rowCount() - 1);
+}
+//! [Slot for updating the buttons]

examples/widgets/itemviews/combowidgetmapper/window.h

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QComboBox;
+class QDataWidgetMapper;
+class QLabel;
+class QLineEdit;
+class QPushButton;
+class QStandardItemModel;
+class QStringListModel;
+class QTextEdit;
+QT_END_NAMESPACE
+
+//! [Window definition]
+class Window : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Window(QWidget *parent = nullptr);
+
+private slots:
+    void updateButtons(int row);
+
+private:
+    void setupModel();
+
+    QLabel *nameLabel;
+    QLabel *addressLabel;
+    QLabel *typeLabel;
+    QLineEdit *nameEdit;
+    QTextEdit *addressEdit;
+    QComboBox *typeComboBox;
+    QPushButton *nextButton;
+    QPushButton *previousButton;
+
+    QStandardItemModel *model;
+    QStringListModel *typeModel;
+    QDataWidgetMapper *mapper;
+};
+//! [Window definition]
+
+#endif // WINDOW_H