CalendarDemo

 // Copyright (C) 2026 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 #include "editcalendarspage.h"

 #include "calendardemo.h"
 #include <QtWidgets>
 #include <QtOrganizer/qorganizer.h>

 QTORGANIZER_USE_NAMESPACE

 Q_DECLARE_METATYPE(QOrganizerCollection)

 EditCalendarsPage::EditCalendarsPage(QWidget *parent)
     :QWidget(parent),
     m_manager(0)
 {
     m_calendarList = new QListWidget(this);
     connect(m_calendarList, &QListWidget::itemDoubleClicked, this, &EditCalendarsPage::itemDoubleClicked);

     // Add push buttons
     QHBoxLayout* hbLayout = new QHBoxLayout();
     QPushButton *addButton = new QPushButton("Add new", this);
     connect(addButton, &QPushButton::clicked, this, &EditCalendarsPage::addClicked);
     hbLayout->addWidget(addButton);
     QPushButton *editButton = new QPushButton("Edit", this);
     connect(editButton, &QPushButton::clicked, this, &EditCalendarsPage::editClicked);
     hbLayout->addWidget(editButton);
     QPushButton *deleteButton = new QPushButton("Delete", this);
     connect(deleteButton, &QPushButton::clicked, this, &EditCalendarsPage::deleteClicked);
     hbLayout->addWidget(deleteButton);
     QPushButton *backButton = new QPushButton("Back", this);
     connect(backButton, &QPushButton::clicked, this, &EditCalendarsPage::backClicked);
     hbLayout->addWidget(backButton);

     QVBoxLayout *scrollAreaLayout = new QVBoxLayout();
     scrollAreaLayout->addWidget(m_calendarList);
     scrollAreaLayout->addLayout(hbLayout);

     QScrollArea *scrollArea = new QScrollArea(this);
     scrollArea->setWidgetResizable(true);
     QWidget *formContainer = new QWidget(scrollArea);
     formContainer->setLayout(scrollAreaLayout);
     scrollArea->setWidget(formContainer);

     QVBoxLayout *mainLayout = new QVBoxLayout();
     mainLayout->addWidget(scrollArea);
     setLayout(mainLayout);
 }

 EditCalendarsPage::~EditCalendarsPage()
 {

 }

 void EditCalendarsPage::editClicked()
 {
     if (m_calendarList->currentItem())
         itemDoubleClicked(m_calendarList->currentItem());
 }

 void EditCalendarsPage::deleteClicked()
 {
     if (!m_calendarList->currentItem())
         return;

     QMessageBox msgBox;
     msgBox.setText("Are you sure you want to delete this calendar?");
     msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
     msgBox.setDefaultButton(QMessageBox::No);
     int ret = msgBox.exec();

     if (ret == QMessageBox::Yes) {
         m_collection = m_calendarList->currentItem()->data(ORGANIZER_CALENDAR_ROLE).value<QOrganizerCollection>();
         if (!m_manager->removeCollection(m_collection.id()))
             QMessageBox::information(this, "Failed!", QString("Failed to remove calendar!\n(error code %1)").arg(m_manager->error()));
         showPage(m_manager);
     }
 }

 void EditCalendarsPage::backClicked()
 {
     emit showPreviousPage();
 }

 void EditCalendarsPage::itemDoubleClicked(QListWidgetItem *listItem)
 {
     if (!listItem)
         return;

     m_collection = listItem->data(ORGANIZER_CALENDAR_ROLE).value<QOrganizerCollection>();
     emit showAddCalendarPage(m_manager, &m_collection);
 }

 void EditCalendarsPage::showPage(QOrganizerManager *manager)
 {
     m_manager = manager;
     m_calendarList->clear();
     QList<QOrganizerCollection> collections = manager->collections();
     int index = 0;
     foreach(QOrganizerCollection collection, collections) {
         QString visibleName;
         if (collection.metaData(QOrganizerCollection::KeyName).canConvert<QString>())
             visibleName = collection.metaData(QOrganizerCollection::KeyName).toString();
         else
             // We currently have no way of stringifying ids
             // visibleName = "Calendar id " + QString::number(collection.id().localId());
             visibleName = "Calendar " + QString::number(index++);

         QListWidgetItem* listItem = new QListWidgetItem();
         listItem->setText(visibleName);
         QVariant data = QVariant::fromValue<QOrganizerCollection>(collection);
         listItem->setData(ORGANIZER_CALENDAR_ROLE, data);
         m_calendarList->addItem(listItem);
     }
 }

 void EditCalendarsPage::showEvent(QShowEvent *event)
 {
     window()->setWindowTitle("Edit calendars");
     QWidget::showEvent(event);
 }