kexidbdatetimeedit.cpp

/* This file is part of the KDE project
   Copyright (C) 2005 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004-2005 Jaroslaw Staniek <js@iidea.pl>
 
   This program 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 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#include "kexidbdatetimeedit.h"
 
#include <tqtoolbutton.h>
#include <tqlayout.h>
#include <tdepopupmenu.h>
#include <kdatepicker.h>
#include <kdatetbl.h>
#include <kexiutils/utils.h>
 
KexiDBDateTimeEdit::KexiDBDateTimeEdit(const TQDateTime &datetime, TQWidget *parent, const char *name)
 : TQWidget(parent, name), KexiFormDataItemInterface()
{
    m_invalidState = false;
    m_cleared = false;
    m_readOnly = false;
 
    m_dateEdit = new TQDateEdit(datetime.date(), this);
    m_dateEdit->setAutoAdvance(true);
    m_dateEdit->setSizePolicy(TQSizePolicy::Minimum, TQSizePolicy::MinimumExpanding);
//  m_dateEdit->setFixedWidth( TQFontMetrics(m_dateEdit->font()).width("8888-88-88___") );
    connect(m_dateEdit, TQ_SIGNAL(valueChanged(const TQDate&)), this, TQ_SLOT(slotValueChanged()));
    connect(m_dateEdit, TQ_SIGNAL(valueChanged(const TQDate&)), this, TQ_SIGNAL(dateTimeChanged()));
 
    TQToolButton* btn = new TQToolButton(this);
    btn->setText("...");
    btn->setFixedWidth( TQFontMetrics(btn->font()).width(" ... ") );
    btn->setPopupDelay(1); //1 ms
 
    m_timeEdit = new TQTimeEdit(datetime.time(), this);;
    m_timeEdit->setAutoAdvance(true);
    m_timeEdit->setSizePolicy(TQSizePolicy::Minimum, TQSizePolicy::MinimumExpanding);
    connect(m_timeEdit, TQ_SIGNAL(valueChanged(const TQTime&)), this, TQ_SLOT(slotValueChanged()));
    connect(m_timeEdit, TQ_SIGNAL(valueChanged(const TQTime&)), this, TQ_SIGNAL(dateTimeChanged()));
 
#ifdef TQDateTimeEditor_HACK
    m_dte_date = KexiUtils::findFirstChild<TQDateTimeEditor>(m_dateEdit, "TQDateTimeEditor");
    m_dte_time = KexiUtils::findFirstChild<TQDateTimeEditor>(m_timeEdit, "TQDateTimeEditor");
#else
    m_dte_date = 0;
#endif
 
    m_datePickerPopupMenu = new TDEPopupMenu(0, "date_popup");
    connect(m_datePickerPopupMenu, TQ_SIGNAL(aboutToShow()), this, TQ_SLOT(slotShowDatePicker()));
    m_datePicker = new KDatePicker(m_datePickerPopupMenu, TQDate::currentDate(), 0);
 
    KDateTable *dt = KexiUtils::findFirstChild<KDateTable>(m_datePicker, "KDateTable");
    if (dt)
        connect(dt, TQ_SIGNAL(tableClicked()), this, TQ_SLOT(acceptDate()));
    m_datePicker->setCloseButton(true);
    m_datePicker->installEventFilter(this);
    m_datePickerPopupMenu->insertItem(m_datePicker);
    btn->setPopup(m_datePickerPopupMenu);
 
    TQHBoxLayout* layout = new TQHBoxLayout(this);
    layout->addWidget(m_dateEdit, 0);
    layout->addWidget(btn, 0);
    layout->addWidget(m_timeEdit, 0);
    //layout->addStretch(1);
 
    setFocusProxy(m_dateEdit);
}
 
KexiDBDateTimeEdit::~KexiDBDateTimeEdit()
{
}
 
void KexiDBDateTimeEdit::setInvalidState(const TQString & )
{
    setEnabled(false);
    setReadOnly(true);
    m_invalidState = true;
    if (focusPolicy() & TabFocus)
        setFocusPolicy(TQWidget::ClickFocus);
}
 
void
KexiDBDateTimeEdit::setEnabled(bool enabled)
{
     // prevent the user from reenabling the widget when it is in invalid state
    if(enabled && m_invalidState)
        return;
    TQWidget::setEnabled(enabled);
}
 
void KexiDBDateTimeEdit::setValueInternal(const TQVariant &, bool )
{
    m_dateEdit->setDate(m_origValue.toDate());
    m_timeEdit->setTime(m_origValue.toTime());
}
 
TQVariant
KexiDBDateTimeEdit::value()
{
    return TQDateTime(m_dateEdit->date(), m_timeEdit->time());
}
 
bool KexiDBDateTimeEdit::valueIsNull()
{
    return !m_dateEdit->date().isValid() || m_dateEdit->date().isNull()
        || !m_timeEdit->time().isValid() || m_timeEdit->time().isNull();
}
 
bool KexiDBDateTimeEdit::valueIsEmpty()
{
    return m_cleared;
}
 
bool KexiDBDateTimeEdit::isReadOnly() const
{
    return m_readOnly; 
}
 
void KexiDBDateTimeEdit::setReadOnly(bool set)
{
    m_readOnly = set;
}
 
TQWidget*
KexiDBDateTimeEdit::widget()
{
    return m_dateEdit;
}
 
bool KexiDBDateTimeEdit::cursorAtStart()
{
#ifdef TQDateTimeEditor_HACK
    return m_dte_date && m_dateEdit->hasFocus() && m_dte_date->focusSection()==0;
#else
    return false;
#endif
}
 
bool KexiDBDateTimeEdit::cursorAtEnd()
{
#ifdef TQDateTimeEditor_HACK
    return m_dte_time && m_timeEdit->hasFocus()
        && m_dte_time->focusSection()==int(m_dte_time->sectionCount()-1);
#else
    return false;
#endif
}
 
void KexiDBDateTimeEdit::clear()
{
    m_dateEdit->setDate(TQDate());
    m_timeEdit->setTime(TQTime());
    m_cleared = true;
}
 
void
KexiDBDateTimeEdit::slotValueChanged()
{
    m_cleared = false;
}
 
void
KexiDBDateTimeEdit::slotShowDatePicker()
{
    TQDate date = m_dateEdit->date();
 
    m_datePicker->setDate(date);
    m_datePicker->setFocus();
    m_datePicker->show();
    m_datePicker->setFocus();
}
 
void
KexiDBDateTimeEdit::acceptDate()
{
    m_dateEdit->setDate(m_datePicker->date());
    m_datePickerPopupMenu->hide();
}
 
bool
KexiDBDateTimeEdit::eventFilter(TQObject *o, TQEvent *e)
{
    if (o != m_datePicker)
        return false;
 
    switch (e->type()) {
        case TQEvent::Hide:
            m_datePickerPopupMenu->hide();
            break;
        case TQEvent::KeyPress:
        case TQEvent::KeyRelease: {
            TQKeyEvent *ke = (TQKeyEvent *)e;
            if (ke->key()==TQt::Key_Enter || ke->key()==TQt::Key_Return) {
                //accepting picker
                acceptDate();
                return true;
            }
            else if (ke->key()==TQt::Key_Escape) {
                //canceling picker
                m_datePickerPopupMenu->hide();
                return true;
            }
            else
                 m_datePickerPopupMenu->setFocus();
            break;
        }
        default:
            break;
    }
    return false;
}
 
TQDateTime
KexiDBDateTimeEdit::dateTime() const
{
    return TQDateTime(m_dateEdit->date(), m_timeEdit->time());
}
 
void
KexiDBDateTimeEdit::setDateTime(const TQDateTime &dt)
{
    m_dateEdit->setDate(dt.date());
    m_timeEdit->setTime(dt.time());
}
 
#include "kexidbdatetimeedit.moc"