File indexing completed on 2024-05-12 05:09:47

 /***************************************************************************
     Copyright (C) 2003-2009 Robby Stephenson <robby@periapsis.org>
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   This program is free software; you can redistribute it and/or         *
  *   modify it under the terms of the GNU General Public License as        *
  *   published by the Free Software Foundation; either version 2 of        *
  *   the License or (at your option) version 3 or any later version        *
  *   accepted by the membership of KDE e.V. (or its successor approved     *
  *   by the membership of KDE e.V.), which shall act as a proxy            *
  *   defined in Section 14 of version 3 of the license.                    *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  *                                                                         *
  ***************************************************************************/
 
 // this class borrows heavily from kdateedit.h in the kdepim module
 // which is Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
 // and published under the LGPL
 
 #include "datewidget.h"
 #include "spinbox.h"
 
 #include <KComboBox>
 #include <KDatePicker>
 
 #include <QPushButton>
 #include <QHBoxLayout>
 #include <QFrame>
 #include <QDate>
 #include <QEvent>
 #include <QMenu>
 #include <QWidgetAction>
 #include <QApplication>
 #include <QDesktopWidget>
 
 using Tellico::GUI::DateWidget;
 
 class DateWidget::DatePickerAction : public QWidgetAction
 {
   Q_OBJECT
 
   public:
     DatePickerAction( KDatePicker *widget, QObject *parent )
       : QWidgetAction( parent ),
         mDatePicker( widget ), mOriginalParent( widget->parentWidget() )
     {
     }
 
   protected:
     QWidget *createWidget( QWidget *parent ) Q_DECL_OVERRIDE
     {
       mDatePicker->setParent( parent );
       return mDatePicker;
     }
 
     void deleteWidget( QWidget *widget ) Q_DECL_OVERRIDE
     {
       if ( widget != mDatePicker ) {
         return;
       }
 
       mDatePicker->setParent( mOriginalParent );
     }
 
   private:
     KDatePicker *mDatePicker;
     QWidget *mOriginalParent;
 };
 
 DateWidget::DateWidget(QWidget* parent_) : QWidget(parent_) {
   QBoxLayout* l = new QHBoxLayout(this);
   l->setContentsMargins(0, 0, 0, 0);
 
   // 0 allows empty value
   m_daySpin = new SpinBox(0, 31, this);
   l->addWidget(m_daySpin, 1);
   l->setStretchFactor(m_daySpin, 1);
 
   m_monthCombo = new KComboBox(false, this);
   l->addWidget(m_monthCombo, 1);
   l->setStretchFactor(m_monthCombo, 1);
   // allow empty item
   m_monthCombo->addItem(QString());
   for(int i = 1; ; ++i) {
     QString str = QLocale().standaloneMonthName(i, QLocale::LongFormat);
     if(str.isEmpty()) {
       break;
     }
     m_monthCombo->addItem(str);
   }
 
   // the min year is the value when the year is empty
   const int minYear = QDate::fromJulianDay(0).year() - 1;
   m_yearSpin = new SpinBox(minYear, 9999, this);
   m_yearSpin->setValue(minYear);
   l->addWidget(m_yearSpin, 1);
   l->setStretchFactor(m_yearSpin, 1);
 
   void (SpinBox::* valueChangedInt)(int) = &SpinBox::valueChanged;
   void (KComboBox::* indexChanged)(int) = &KComboBox::currentIndexChanged;
   connect(m_daySpin, valueChangedInt, this, &DateWidget::slotDateChanged);
   connect(m_monthCombo, indexChanged, this, &DateWidget::slotDateChanged);
   connect(m_yearSpin, valueChangedInt, this, &DateWidget::slotDateChanged);
 
   m_dateButton = new QPushButton(this);
   m_dateButton->setIcon(QIcon::fromTheme(QStringLiteral("view-pim-calendar")));
   connect(m_dateButton, &QAbstractButton::clicked, this, &DateWidget::slotShowPicker);
   l->addWidget(m_dateButton, 0);
 
   m_menu = new QMenu(this);
   m_menu->hide();
 
   m_picker = new KDatePicker(m_menu);
   m_picker->setCloseButton(false);
   connect(m_picker, &KDatePicker::dateEntered, this, &DateWidget::slotDateEntered);
   connect(m_picker, &KDatePicker::dateSelected, this, &DateWidget::slotDateSelected);
 
   m_menu->addAction(new DatePickerAction(m_picker, m_menu));
 }
 
 DateWidget::~DateWidget() {
 }
 
 void DateWidget::slotDateChanged() {
   int day = m_daySpin->value();
   day = qMin(qMax(day, m_daySpin->minimum()), m_daySpin->maximum());
 
   int m = m_monthCombo->currentIndex();
   m = qMin(qMax(m, 0), m_monthCombo->count()-1);
 
   int y = m_yearSpin->value();
   y = qMin(qMax(y, m_yearSpin->minimum()), m_yearSpin->maximum());
 
   // if all are valid, set this date
   if(day > m_daySpin->minimum() && m > 0 && y > m_yearSpin->minimum()) {
     QDate d(y, m, day);
     setDate(d);
   }
   emit signalModified();
 }
 
 QDate DateWidget::date() const {
   // possible for either day, month, or year to be empty
   // in which case a null date is returned
   int day = m_daySpin->value();
   // min value is the empty one
   if(day == m_daySpin->minimum()) {
     return QDate();
   }
   int month = m_monthCombo->currentIndex();
   if(month == 0) {
     return QDate();
   }
   int year = m_yearSpin->value();
   if(year == m_yearSpin->minimum()) {
     return QDate();
   }
   return QDate(year, month, day);
 }
 
 QString DateWidget::text() const {
   // possible for either day, month, or year to be empty
   // but not all three
   bool empty = true;
   // format is "year-month-day"
   QString s;
   if(m_yearSpin->value() > m_yearSpin->minimum()) {
     s += QString::number(m_yearSpin->value());
     empty = false;
   }
   s += QLatin1Char('-');
   // first item is empty
   if(m_monthCombo->currentIndex() > 0) {
     // zero-pad to two digits
     if(m_monthCombo->currentIndex() < 10) {
       s += QLatin1Char('0');
     }
     s += QString::number(m_monthCombo->currentIndex());
     empty = false;
   }
   s += QLatin1Char('-');
   if(m_daySpin->value() > m_daySpin->minimum()) {
     // zero-pad to two digits
     if(m_daySpin->value() < 10) {
       s += QLatin1Char('0');
     }
     s += QString::number(m_daySpin->value());
     empty = false;
   }
   return empty ? QString() : s;
 }
 
 void DateWidget::setDate(const QDate& date_) {
   const QDate oldDate = date();
 
   m_daySpin->blockSignals(true);
   m_monthCombo->blockSignals(true);
   m_yearSpin->blockSignals(true);
 
   m_daySpin->setMaximum(date_.daysInMonth());
   m_daySpin->setValue(date_.day());
   m_monthCombo->setCurrentIndex(date_.month()); // don't subtract 1 since there's the blank first item
   m_yearSpin->setValue(date_.year());
 
   m_daySpin->blockSignals(false);
   m_monthCombo->blockSignals(false);
   m_yearSpin->blockSignals(false);
 
   if(oldDate != date_) {
     emit signalModified();
   }
 }
 
 void DateWidget::setDate(const QString& date_) {
   m_daySpin->blockSignals(true);
   m_monthCombo->blockSignals(true);
   m_yearSpin->blockSignals(true);
 
   QStringList s = date_.split(QLatin1Char('-'));
   bool ok = true;
   int y = s.count() > 0 ? s[0].toInt(&ok) : m_yearSpin->minimum();
   if(!ok) {
     y = m_yearSpin->minimum();
     ok = true;
   }
   y = qMin(qMax(y, m_yearSpin->minimum()), m_yearSpin->maximum());
   m_yearSpin->setValue(y);
 
   int m = s.count() > 1 ? s[1].toInt(&ok) : 0;
   if(!ok) {
     m = 0;
     ok = true;
   }
   m = qMin(qMax(m, 0), m_monthCombo->count()-1);
   m_monthCombo->setCurrentIndex(m);
 
   // need to update number of days in month
   // for now set date to 1
   QDate date(y, (m == 0 ? 1 : m), 1);
   m_daySpin->setMaximum(date.daysInMonth());
 
   int day = s.count() > 2 ? s[2].toInt(&ok) : m_daySpin->minimum();
   if(!ok) {
     day = m_daySpin->minimum();
   }
   day = qMin(qMax(day, m_daySpin->minimum()), m_daySpin->maximum());
   m_daySpin->setValue(day);
 
   m_daySpin->blockSignals(false);
   m_monthCombo->blockSignals(false);
   m_yearSpin->blockSignals(false);
 
   // if all are valid, set this date
   if(day > m_daySpin->minimum() && m > 0 && y > m_yearSpin->minimum()) {
     QDate d(y, m, day);
     m_picker->blockSignals(true);
     m_picker->setDate(d);
     m_picker->blockSignals(false);
   }
 }
 
 void DateWidget::clear() {
   m_daySpin->blockSignals(true);
   m_monthCombo->blockSignals(true);
   m_yearSpin->blockSignals(true);
   m_picker->blockSignals(true);
 
   m_daySpin->setValue(m_daySpin->minimum());
   m_monthCombo->setCurrentIndex(0);
   m_yearSpin->setValue(m_yearSpin->minimum());
   m_picker->setDate(QDate::currentDate());
 
   m_daySpin->blockSignals(false);
   m_monthCombo->blockSignals(false);
   m_yearSpin->blockSignals(false);
   m_picker->blockSignals(false);
 }
 
 void DateWidget::slotShowPicker() {
   QRect desk = QApplication::desktop()->screenGeometry(this);
   QPoint popupPoint = mapToGlobal(QPoint(0, 0));
 
   int dateFrameHeight = m_menu->sizeHint().height();
   if(popupPoint.y() + height() + dateFrameHeight > desk.bottom()) {
     popupPoint.setY(popupPoint.y() - dateFrameHeight);
   } else {
     popupPoint.setY(popupPoint.y() + height());
   }
   int dateFrameWidth = m_menu->sizeHint().width();
   if(popupPoint.x() + width() > desk.right()) {
     popupPoint.setX(desk.right() - dateFrameWidth);
   } else {
     popupPoint.setX(popupPoint.x() + width() - dateFrameWidth);
   }
 
   if(popupPoint.x() < desk.left()) {
     popupPoint.setX( desk.left());
   }
   if(popupPoint.y() < desk.top()) {
     popupPoint.setY(desk.top());
   }
 
   QDate d = date();
   if(d.isValid()) {
     m_picker->setDate(d);
   }
 
   m_menu->popup(popupPoint);
 }
 
 void DateWidget::slotDateSelected(QDate date_) {
   if(date_.isValid()) {
     setDate(date_);
     m_menu->hide();
   }
 }
 
 void DateWidget::slotDateEntered(QDate date_) {
   if(date_.isValid()) {
     setDate(date_);
   }
 }
 
 #include "datewidget.moc"