- Qt 5.0
- CalendarDemo
- Qt 5.0.0 Reference Documentation

# CalendarDemo

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     #include "eventeditpage.h"

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

     QTORGANIZER_USE_NAMESPACE

     EventEditPage::EventEditPage(QWidget *parent)
         :QWidget(parent),
         m_manager(0),
         m_alarmComboBox(0),
         m_typeComboBox(0),
         m_subjectEdit(0),
         m_countSpinBox(0),
         m_repeatUntilDate(0)
     {
         //create asynch request to save an item
         m_saveItemRequest = new QOrganizerItemSaveRequest(this);
         // Create widgets
         QLabel *subjectLabel = new QLabel("Subject:", this);
         m_subjectEdit = new QLineEdit(this);
         QLabel *startTimeLabel = new QLabel("Start time:", this);
         m_startTimeEdit = new QDateTimeEdit(this);
         m_startTimeEdit->setDisplayFormat(QString("yyyy-MM-dd hh:mm:ss AP"));
         QLabel *endTimeLabel = new QLabel("End time:", this);
         m_endTimeEdit = new QDateTimeEdit(this);
         m_endTimeEdit->setDisplayFormat(QString("yyyy-MM-dd hh:mm:ss AP"));
         QLabel *repeatLabel = new QLabel("Repeat:", this);
         QLabel *alarmLabel = new QLabel("Alarm:", this);
         QLabel *calendarLabel = new QLabel("Calendar:", this);
         m_alarmComboBox = new QComboBox(this);
         m_typeComboBox = new QComboBox(this);
         m_typeComboBox->addItem("None");
         m_typeComboBox->addItem("Daily");
         m_typeComboBox->addItem("Weekly");
         m_typeComboBox->addItem("Monthly");
         m_typeComboBox->addItem("Yearly");
         connect(m_typeComboBox, SIGNAL(currentIndexChanged(const QString&)), this,
                 SLOT(frequencyChanged(const QString&)));
         QStringList alarmList;
         alarmList   << "None"
                     << "0 minutes before"
                     << "5 minutes before"
                     << "15 minutes before"
                     << "30 minutes before"
                     << "1 hour before";
         m_alarmComboBox->addItems(alarmList);
         connect(m_alarmComboBox, SIGNAL(currentIndexChanged(const QString)), this,
                             SLOT(alarmIndexChanged(const QString)));

         m_endConditionComboBox = new QComboBox(this);
         m_endConditionComboBox->addItem("Forever");
         m_endConditionComboBox->addItem("Until a date");
         m_endConditionComboBox->addItem("For a number of occurrences");
         m_endConditionComboBox->setVisible(false);
         connect(m_endConditionComboBox, SIGNAL(currentIndexChanged(const QString&)),
                 this, SLOT(endConditionChanged(const QString&)));

         m_countSpinBox = new QSpinBox(this);
         m_countSpinBox->setRange(1, 100);
         m_countSpinBox->setSingleStep(1);
         m_countSpinBox->setVisible(false);
         connect(m_countSpinBox, SIGNAL(valueChanged(int)), this, SLOT(countChanged(int)));

         m_repeatUntilDate = new QDateEdit(this);
         m_repeatUntilDate->setVisible(false);
         connect(m_repeatUntilDate, SIGNAL(dateChanged(QDate)), this, SLOT(untilChanged(QDate)));

         m_calendarComboBox = new QComboBox(this);
         // the calendar names are not know here, fill the combo box later...

         // Add push buttons
         QHBoxLayout* hbLayout = new QHBoxLayout();
         QPushButton *okButton = new QPushButton("Save", this);
         connect(okButton,SIGNAL(clicked()),this,SLOT(saveClicked()));
         hbLayout->addWidget(okButton);
         QPushButton *cancelButton = new QPushButton("Cancel", this);
         connect(cancelButton,SIGNAL(clicked()),this,SLOT(cancelClicked()));
         hbLayout->addWidget(cancelButton);

         // check to see whether we support alarms.
         QOrganizerManager defaultManager;
         QList<QOrganizerItemDetail::DetailType> supportedDetails = defaultManager.supportedItemDetails(QOrganizerItemType::TypeEvent);

         QVBoxLayout *scrollAreaLayout = new QVBoxLayout();
         scrollAreaLayout->addWidget(subjectLabel);
         scrollAreaLayout->addWidget(m_subjectEdit);
         scrollAreaLayout->addWidget(startTimeLabel);
         scrollAreaLayout->addWidget(m_startTimeEdit);
         scrollAreaLayout->addWidget(endTimeLabel);
         scrollAreaLayout->addWidget(m_endTimeEdit);
         if (supportedDetails.contains(QOrganizerItemDetail::TypeVisualReminder)) {
             scrollAreaLayout->addWidget(alarmLabel);
             scrollAreaLayout->addWidget(m_alarmComboBox);
         }
         scrollAreaLayout->addWidget(repeatLabel);
         scrollAreaLayout->addWidget(m_typeComboBox);
         scrollAreaLayout->addWidget(m_endConditionComboBox);
         scrollAreaLayout->addWidget(m_countSpinBox);
         scrollAreaLayout->addWidget(m_repeatUntilDate);
         scrollAreaLayout->addWidget(calendarLabel);
         scrollAreaLayout->addWidget(m_calendarComboBox);
         scrollAreaLayout->addStretch();
         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);

         m_listOfEvents.clear();
     }

     EventEditPage::~EventEditPage()
     {

     }

     void EventEditPage::eventChanged(QOrganizerManager *manager, const QOrganizerEvent &event)
     {
         m_manager = manager;
         m_organizerEvent = event;
         m_subjectEdit->setText(event.displayLabel());
         m_startTimeEdit->setDateTime(event.startDateTime());
         m_endTimeEdit->setDateTime(event.endDateTime());
         QSet<QOrganizerRecurrenceRule> rrules(m_organizerEvent.recurrenceRules());
         // Check whether existing entry and if it is repeating.
         if (rrules.count() != 0) {
             QOrganizerRecurrenceRule rrule(rrules.values().at(0));
             QOrganizerRecurrenceRule::Frequency freq(rrule.frequency());
             switch (freq) {
             case QOrganizerRecurrenceRule::Daily:
                 m_typeComboBox->setCurrentIndex(1);
                 break;
             case QOrganizerRecurrenceRule::Weekly:
                 m_typeComboBox->setCurrentIndex(2);
                 break;
             case QOrganizerRecurrenceRule::Monthly:
                 m_typeComboBox->setCurrentIndex(3);
                 break;
             case QOrganizerRecurrenceRule::Yearly:
                 m_typeComboBox->setCurrentIndex(4);
                 break;
             case QOrganizerRecurrenceRule::Invalid:
                 m_typeComboBox->setCurrentIndex(0); // No repeat
                 return;
             }
             if (rrule.limitType() == QOrganizerRecurrenceRule::DateLimit) {
                 m_endConditionComboBox->setCurrentIndex(1); // End date specified
                 m_repeatUntilDate->setDate(rrule.limitDate());
             } else if (rrule.limitType() == QOrganizerRecurrenceRule::CountLimit) {
                 m_endConditionComboBox->setCurrentIndex(2); // Count specified
                 m_countSpinBox->setValue(rrule.limitCount());
             }
         } else {
             m_typeComboBox->setCurrentIndex(0); // No repeat
         }

         // set calendar selection
         m_calendarComboBox->clear();

         QOrganizerItemReminder reminder = event.detail(QOrganizerItemDetail::TypeReminder);
         if (!reminder.isEmpty()) {
             // Alarm combo is only able to handle certain time limits correctly; for example time
             // limit 3 minutes is rounded up to 5 minutes
             if (reminder.secondsBeforeStart() == 0)
                 m_alarmComboBox->setCurrentIndex(1);
             else if (reminder.secondsBeforeStart() < 300)
                 m_alarmComboBox->setCurrentIndex(2);
             else if (reminder.secondsBeforeStart() < 900)
                 m_alarmComboBox->setCurrentIndex(3);
             else if (reminder.secondsBeforeStart() < 1800)
                 m_alarmComboBox->setCurrentIndex(4);
             else
                 m_alarmComboBox->setCurrentIndex(5);
         } else {
             m_alarmComboBox->setCurrentIndex(0);
         }

         // resolve metadata field that contains calendar name (if any)
         m_collections = m_manager->collections();
         int index = 0;
         int eventCalendarIndex = -1;
         foreach(QOrganizerCollection collection, m_collections) {
             // We currently have no way of stringifying ids
             //QString visibleName = "Calendar id = " + QString::number(collection.id().localId());
             QString visibleName = collection.metaData(QOrganizerCollection::KeyName).toString();
             if (visibleName.isEmpty())
                 visibleName = "Calendar " + QString::number(index);

             m_calendarComboBox->addItem(visibleName);
             if (collection.id() == event.collectionId())
                 eventCalendarIndex = index;
             ++index;
         }

         if (eventCalendarIndex > -1) {
             m_calendarComboBox->setCurrentIndex(eventCalendarIndex);
             m_calendarComboBox->setEnabled(false); // when modifying existing events, the calendar can't be changed anymore
         }
         else {
             m_calendarComboBox->setEnabled(true);
         }
     }

     void EventEditPage::cancelClicked()
     {
         emit showDayPage();
     }

     void EventEditPage::saveClicked()
     {
         QDateTime start(m_startTimeEdit->dateTime());
         QDateTime end(m_endTimeEdit->dateTime());
         if (start > end) {
             QMessageBox::warning(this, "Failed!", "Start date is not before end date");
             return;
         }

         m_organizerEvent.setDisplayLabel(m_subjectEdit->text());
         m_organizerEvent.setStartDateTime(start);
         m_organizerEvent.setEndDateTime(end);
         m_listOfEvents.append(m_organizerEvent);
         if (m_calendarComboBox->currentIndex() > 0) {
             m_organizerEvent.setCollectionId(m_collections[m_calendarComboBox->currentIndex()].id());
         }
         m_manager->saveItem(&m_organizerEvent);
         if (m_manager->error())
             QMessageBox::warning(this, "Failed!", QString("Failed to save event!\n(error code %1)").arg(m_manager->error()));
         else
             emit showDayPage();
     }

     void EventEditPage::frequencyChanged(const QString& frequency)
     {
         QOrganizerRecurrenceRule rrule;

         if (frequency != "None") {
             m_endConditionComboBox->setVisible(true);

             if (frequency == "Daily") {
                 rrule.setFrequency(QOrganizerRecurrenceRule::Daily);
             } else if (frequency == "Weekly") {
                 rrule.setFrequency(QOrganizerRecurrenceRule::Weekly);
             } else if (frequency == "Monthly") {
                 rrule.setFrequency(QOrganizerRecurrenceRule::Monthly);
             } else if (frequency == "Yearly") {
                 rrule.setFrequency(QOrganizerRecurrenceRule::Yearly);
             }
             m_organizerEvent.setRecurrenceRule(rrule);
         } else {
             m_endConditionComboBox->setCurrentIndex(0);
             m_endConditionComboBox->setVisible(false);
         }
     }

     void EventEditPage::alarmIndexChanged(const QString time)
     {
         bool noVisualReminders = !m_manager->supportedItemDetails(QOrganizerItemType::TypeEvent).contains(QOrganizerItemDetail::TypeVisualReminder);

         QScopedPointer<QOrganizerItemReminder> reminder;
         if (noVisualReminders) {
             reminder.reset(new QOrganizerItemReminder());
         } else {
             reminder.reset(new QOrganizerItemVisualReminder());
             static_cast<QOrganizerItemVisualReminder *>(reminder.data())->setMessage(m_subjectEdit->text());
         }

         if (time == "None") {
              QOrganizerItemVisualReminder fetchedReminder = m_organizerEvent.detail(QOrganizerItemDetail::TypeVisualReminder);
              m_organizerEvent.removeDetail(&fetchedReminder);
             return;
         } else if (time == "0 minutes before") {
             reminder->setSecondsBeforeStart(0);
         } else if (time == "5 minutes before") {
             reminder->setSecondsBeforeStart(5*60);
         } else if (time == "15 minutes before") {
             reminder->setSecondsBeforeStart(15*60);
         } else if (time == "30 minutes before") {
             reminder->setSecondsBeforeStart(30*60);
         } else if (time == "1 hour before") {
             reminder->setSecondsBeforeStart(60*60);
         }

         m_organizerEvent.saveDetail(reminder.data());
     }

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

     void EventEditPage::countChanged(int i)
     {
         QOrganizerRecurrenceRule rrule;
         rrule.setFrequency(m_organizerEvent.recurrenceRules().values().at(0).frequency());
         rrule.setLimit(i);
         m_organizerEvent.setRecurrenceRule(rrule);
     }

     void EventEditPage::untilChanged(QDate date)
     {
         QOrganizerRecurrenceRule rrule;
         rrule.setFrequency(m_organizerEvent.recurrenceRules().values().at(0).frequency());
         rrule.setLimit(date);
         m_organizerEvent.setRecurrenceRule(rrule);
     }

     void EventEditPage::endConditionChanged(const QString& endCondition) {
         if (endCondition == "Forever") {
             m_countSpinBox->setVisible(false);
             m_repeatUntilDate->setVisible(false);
         } else if (endCondition == "Until a date") {
             setRepeatUntilField();
         } else if (endCondition == "For a number of occurrences") {
             setCountField();
         }
     }

     void EventEditPage::setCountField()
     {
         m_countSpinBox->setVisible(true);
         m_repeatUntilDate->setVisible(false);
         m_countSpinBox->setValue(5);
         countChanged(5); // default value.
     }

     void EventEditPage::setRepeatUntilField()
     {
         m_countSpinBox->setVisible(false);
         m_repeatUntilDate->setVisible(true);
         m_repeatUntilDate->setDate(m_endTimeEdit->date());
         untilChanged(m_endTimeEdit->date()); // default value.
     }