/*
  This file is part of libkdepim.

  Copyright (c) 2004 Bram Schoenmakers <bramschoenmakers@kde.nl>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This library 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
  Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/

#include "kdatepickerpopup.h"

#include <KDatePicker>
#include <KLocale>

#include <QtCore/QDateTime>
#include <QtGui/QWidgetAction>

using namespace KPIM;

class KDatePickerAction : public QWidgetAction
{
  public:
    KDatePickerAction( KDatePicker *widget, QObject *parent )
      : QWidgetAction( parent ),
        mDatePicker( widget ), mOriginalParent( widget->parentWidget() )
    {
    }

  protected:
    QWidget *createWidget( QWidget *parent )
    {
      mDatePicker->setParent( parent );
      return mDatePicker;
    }

    void deleteWidget( QWidget *widget )
    {
      if ( widget != mDatePicker ) {
        return;
      }

      mDatePicker->setParent( mOriginalParent );
    }

  private:
    KDatePicker *mDatePicker;
    QWidget *mOriginalParent;
};

KDatePickerPopup::KDatePickerPopup( Items items, const QDate &date, QWidget *parent )
  : QMenu( parent )
{
  mItems = items;

  mDatePicker = new KDatePicker( this );
  mDatePicker->setCloseButton( false );

  connect( mDatePicker, SIGNAL( dateEntered( const QDate& ) ),
           SLOT( slotDateChanged( const QDate& ) ) );
  connect( mDatePicker, SIGNAL( dateSelected( const QDate& ) ),
           SLOT( slotDateChanged( const QDate& ) ) );

  mDatePicker->setDate( date );

  buildMenu();
}

void KDatePickerPopup::buildMenu()
{
  if ( isVisible() ) {
    return;
  }
  clear();

  if ( mItems & DatePicker ) {
    addAction( new KDatePickerAction( mDatePicker, this ) );

    if ( ( mItems & NoDate ) || ( mItems & Words ) ) {
      addSeparator();
    }
  }

  if ( mItems & Words ) {
    addAction( i18nc( "@option today", "&Today" ), this, SLOT( slotToday() ) );
    addAction( i18nc( "@option tomorrow", "To&morrow" ), this, SLOT( slotTomorrow() ) );
    addAction( i18nc( "@option next week", "Next &Week" ), this, SLOT( slotNextWeek() ) );
    addAction( i18nc( "@option next month", "Next M&onth" ), this, SLOT( slotNextMonth() ) );

    if ( mItems & NoDate ) {
      addSeparator();
    }
  }

  if ( mItems & NoDate ) {
    addAction( i18nc( "@option do not specify a date", "No Date" ), this, SLOT( slotNoDate() ) );
  }
}

KDatePicker *KDatePickerPopup::datePicker() const
{
  return mDatePicker;
}

void KDatePickerPopup::setDate( const QDate &date )
{
  mDatePicker->setDate( date );
}

#if 0
void KDatePickerPopup::setItems( int items )
{
  mItems = items;
  buildMenu();
}
#endif

void KDatePickerPopup::slotDateChanged( const QDate &date )
{
  emit dateChanged( date );
  hide();
}

void KDatePickerPopup::slotToday()
{
  emit dateChanged( QDate::currentDate() );
}

void KDatePickerPopup::slotTomorrow()
{
  emit dateChanged( QDate::currentDate().addDays( 1 ) );
}

void KDatePickerPopup::slotNoDate()
{
  emit dateChanged( QDate() );
}

void KDatePickerPopup::slotNextWeek()
{
  emit dateChanged( QDate::currentDate().addDays( 7 ) );
}

void KDatePickerPopup::slotNextMonth()
{
  emit dateChanged( QDate::currentDate().addMonths( 1 ) );
}

#include "kdatepickerpopup.moc"
