combobox.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004  Alexander Dymo <cloudtemple@mskat.net>
 
   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 "combobox.h"
 
#include <tqlayout.h>
#include <tqmap.h>
#include <tqvariant.h>
#include <tqpainter.h>
 
#include <kcombobox.h>
#include <kdebug.h>
 
#include "property.h"
 
using namespace KoProperty;
 
ComboBox::ComboBox(Property *property, TQWidget *parent, const char *name)
 : Widget(property, parent, name)
 , m_setValueEnabled(true)
{
    TQHBoxLayout *l = new TQHBoxLayout(this, 0, 0);
    m_edit = new KComboBox(this);
    m_edit->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Expanding);
    m_edit->setMinimumHeight(5);
    l->addWidget(m_edit);
 
    m_edit->setEditable(false);
    m_edit->setInsertionPolicy(TQComboBox::NoInsertion);
    m_edit->setMinimumSize(10, 0); // to allow the combo to be resized to a small size
    m_edit->setAutoCompletion(true);
    m_edit->setContextMenuEnabled(false);
 
    if (this->property()->listData()) {
        fillBox();
    }
//not needed for combo  setLeavesTheSpaceForRevertButton(true);
 
    setFocusWidget(m_edit);
    connect(m_edit, TQ_SIGNAL(activated(int)), this, TQ_SLOT(slotValueChanged(int)));
}
 
ComboBox::~ComboBox()
{
}
 
TQVariant
ComboBox::value() const
{
    if (!property()->listData()) {
        kopropertywarn << "ComboBox::value(): propery listData not available!" << endl;
        return TQVariant();
    }
    const int idx = m_edit->currentItem();
    if (idx<0 || idx>=(int)property()->listData()->keys.count())
        return TQVariant();
    return TQVariant( property()->listData()->keys[idx] );
//  if(property()->listData() && property()->listData()->contains(m_edit->currentText()))
//      return (*(property()->valueList()))[m_edit->currentText()];
//  return TQVariant();
}
 
void
ComboBox::setValue(const TQVariant &value, bool emitChange)
{
    if (!property() || !property()->listData()) {
        kopropertywarn << "ComboBox::value(): propery listData not available!" << endl;
        return;
    }
    if (!m_setValueEnabled)
        return;
    int idx = property()->listData()->keys.findIndex( value );
    if (idx>=0 && idx<m_edit->count()) {
        m_edit->setCurrentItem(idx);
    }
    else {
        if (idx<0) {
            kopropertywarn << "ComboBox::setValue(): NO SUCH KEY '" << value.toString() 
                << "' (property '" << property()->name() << "')" << endl;
        } else {
            TQStringList list;
            for (int i=0; i<m_edit->count(); i++)
                list += m_edit->text(i);
            kopropertywarn << "ComboBox::setValue(): NO SUCH INDEX WITHIN COMBOBOX: " << idx 
                << " count=" << m_edit->count() << " value='" << value.toString() 
                << "' (property '" << property()->name() << "')\nActual combobox contents: "
                << list << endl;
        }
        m_edit->setCurrentText(TQString());
    }
 
    if(value.isNull())
        return;
 
//  m_edit->blockSignals(true);
//  m_edit->setCurrentText(keyForValue(value));
//  m_edit->blockSignals(false);
    if (emitChange)
        emit valueChanged(this);
}
 
void
ComboBox::drawViewer(TQPainter *p, const TQColorGroup &cg, const TQRect &r, const TQVariant &value)
{
    TQString txt;
    if (property()->listData()) {
        const int idx = property()->listData()->keys.findIndex( value );
        if (idx>=0)
            txt = property()->listData()->names[ idx ];
    }
 
    Widget::drawViewer(p, cg, r, txt); //keyForValue(value));
//  p->eraseRect(r);
//  p->drawText(r, TQt::AlignLeft | TQt::AlignVCenter | TQt::SingleLine, keyForValue(value));
}
 
void
ComboBox::fillBox()
{
    m_edit->clear();
    //m_edit->clearContents();
 
    if(!property())
        return;
    if (!property()->listData()) {
        kopropertywarn << "ComboBox::fillBox(): propery listData not available!" << endl;
        return;
    }
 
    m_edit->insertStringList(property()->listData()->names);
    TDECompletion *comp = m_edit->completionObject();
    comp->insertItems(property()->listData()->names);
    comp->setCompletionMode(TDEGlobalSettings::CompletionShell);
}
 
void
ComboBox::setProperty(Property *prop)
{
    const bool b = (property() == prop);
    m_setValueEnabled = false; //setValue() couldn't be called before fillBox()
    Widget::setProperty(prop);
    m_setValueEnabled = true;
    if(!b)
        fillBox();
    if(prop)
        setValue(prop->value(), false); //now the value can be set
}
 
void
ComboBox::slotValueChanged(int)
{
    emit valueChanged(this);
}
 
void
ComboBox::setReadOnlyInternal(bool readOnly)
{
    setVisibleFlag(!readOnly);
}
 
 
/*TQString
ComboBox::keyForValue(const TQVariant &value)
{
    const TQStringVariantMap *list = property()->valueList();
    Property::ListData *list = property()->listData();
 
    if (!list)
        return TQString();
    int idx = listData->keys.findIndex( value );
 
 
    TQStringVariantMap::ConstIterator endIt = list->constEnd();
    for(TQStringVariantMap::ConstIterator it = list->constBegin(); it != endIt; ++it) {
        if(it.data() == value)
            return it.key();
    }
    return TQString();
}*/
 
 
#include "combobox.moc"