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koffice/kexi/plugins/forms/widgets/kexidbdateedit.cpp

231 lines
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/* 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 <kpopupmenu.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, TQT_SIGNAL(valueChanged(const TQDate&)), this, TQT_SLOT(slotValueChanged(const TQDate&)) );
connect( m_edit, TQT_SIGNAL(valueChanged(const TQDate&)), this, TQT_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 KPopupMenu(0, "date_popup");
connect(m_datePickerPopupMenu, TQT_SIGNAL(aboutToShow()), this, TQT_SLOT(slotShowDatePicker()));
m_datePicker = new KDatePicker(m_datePickerPopupMenu, TQDate::currentDate(), 0);
KDateTable *dt = KexiUtils::findFirstChild<KDateTable>(m_datePicker, "KDateTable");
if (dt)
connect(dt, TQT_SIGNAL(tableClicked()), this, TQT_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;
//! @todo move this to KexiDataItemInterface::setInvalidStateInternal() ?
if (focusPolicy() & TabFocus)
setFocusPolicy(TQ_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
{
//! @todo: data/time edit API has no readonly flag,
//! so use event filter to avoid changes made by keyboard or mouse when m_readOnly==true
return m_readOnly; //!isEnabled();
}
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"