CalendarDemo


  /****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples for the Qt PIM module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** "Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  #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.
  }