kexidbdateedit.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 "kexidbdateedit.h"
#include <tqlayout.h>
#include <tqtoolbutton.h>
#include <tdepopupmenu.h>
#include <kdatepicker.h>
#include <kdatetbl.h>
 
#include <kexiutils/utils.h>
#include <kexidb/queryschema.h>
 
KexiDBDateEdit::KexiDBDateEdit(const TQDate &date, TQWidget *parent, const char *name)
 : TQWidget(parent, name), KexiFormDataItemInterface()
{
    m_invalidState = false;
    m_cleared = false;
    m_readOnly = false;
 
    m_edit = new TQDateEdit(date, this);
    m_edit->setAutoAdvance(true);
    m_edit->setSizePolicy(TQSizePolicy::Minimum, TQSizePolicy::MinimumExpanding);
    connect( m_edit, TQ_SIGNAL(valueChanged(const TQDate&)), this, TQ_SLOT(slotValueChanged(const TQDate&)) );
    connect( m_edit, TQ_SIGNAL(valueChanged(const TQDate&)), this, TQ_SIGNAL(dateChanged(const TQDate&)) );
 
    TQToolButton* btn = new TQToolButton(this);
    btn->setText("...");
    btn->setFixedWidth( TQFontMetrics(btn->font()).width(" ... ") );
    btn->setPopupDelay(1); //1 ms
 
#ifdef TQDateTimeEditor_HACK
    m_dte_date = KexiUtils::findFirstChild<TQDateTimeEditor>(m_edit, "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_edit, 1);
    layout->addWidget(btn, 0);
 
    setFocusProxy(m_edit);
}
 
KexiDBDateEdit::~KexiDBDateEdit()
{
}
 
void KexiDBDateEdit::setInvalidState( const TQString& )
{
    setEnabled(false);
    setReadOnly(true);
    m_invalidState = true;
    if (focusPolicy() & TabFocus)
        setFocusPolicy(TQWidget::ClickFocus);
}
 
void
KexiDBDateEdit::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 KexiDBDateEdit::setValueInternal(const TQVariant &add, bool removeOld)
{
    int setNumberOnFocus = -1;
    TQDate d;
    TQString addString(add.toString());
    if (removeOld) {
        if (!addString.isEmpty() && addString[0].latin1()>='0' && addString[0].latin1() <='9') {
            setNumberOnFocus = addString[0].latin1()-'0';
            d = TQDate(setNumberOnFocus*1000, 1, 1);
        }
    }
    else
        d = m_origValue.toDate();
 
    m_edit->setDate(d);
}
 
TQVariant
KexiDBDateEdit::value()
{
    return TQVariant(m_edit->date());
}
 
bool KexiDBDateEdit::valueIsNull()
{
    return !m_edit->date().isValid() || m_edit->date().isNull();
}
 
bool KexiDBDateEdit::valueIsEmpty()
{
    return m_cleared;
}
 
bool KexiDBDateEdit::isReadOnly() const
{
    return m_readOnly; 
}
 
void KexiDBDateEdit::setReadOnly(bool set)
{
    m_readOnly = set;
}
 
TQWidget*
KexiDBDateEdit::widget()
{
    return this;
}
 
bool KexiDBDateEdit::cursorAtStart()
{
#ifdef TQDateTimeEditor_HACK
    return m_dte_date && m_edit->hasFocus() && m_dte_date->focusSection()==0;
#else
    return false;
#endif
}
 
bool KexiDBDateEdit::cursorAtEnd()
{
#ifdef TQDateTimeEditor_HACK
    return m_dte_date && m_edit->hasFocus()
        && m_dte_date->focusSection()==int(m_dte_date->sectionCount()-1);
#else
    return false;
#endif
}
 
void KexiDBDateEdit::clear()
{
    m_edit->setDate(TQDate());
    m_cleared = true;
}
 
void
KexiDBDateEdit::slotValueChanged(const TQDate&)
{
    m_cleared = false;
}
 
void
KexiDBDateEdit::slotShowDatePicker()
{
    TQDate date = m_edit->date();
 
    m_datePicker->setDate(date);
    m_datePicker->setFocus();
    m_datePicker->show();
    m_datePicker->setFocus();
}
 
void
KexiDBDateEdit::acceptDate()
{
    m_edit->setDate(m_datePicker->date());
    m_datePickerPopupMenu->hide();
}
 
bool
KexiDBDateEdit::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;
}
 
#include "kexidbdateedit.moc"