/* This file is part of the KDE libraries
    Copyright (C) 1999 Reginald Stadlbauer <reggie@kde.org>
              (C) 1999 Simon Hausmann <hausmann@kde.org>
              (C) 2000 Nicolas Hadacek <haadcek@kde.org>
              (C) 2000 Kurt Granroth <granroth@kde.org>
              (C) 2000 Michael Koch <koch@kde.org>
              (C) 2001 Holger Freyther <freyther@kde.org>
              (C) 2002 Ellis Whitehead <ellis@kde.org>
              (C) 2002 Joseph Wenninger <jowenn@kde.org>
              (C) 2003 Andras Mantia <amantia@kde.org>
              (C) 2005-2006 Hamish Rodda <rodda@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License version 2 as published by the Free Software Foundation.

    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 <QFontDatabase>
#include <QToolBar>
#include <QToolButton>

#include <QDebug>
#include <klocalizedstring.h>
#include <QIcon>

#include "FontSizeAction.h"

#include <algorithm>

QString format(qreal v) {
    static const QString f("%1");
    static const QString e("");
    static const QRegExp r("\\.?0+$");
    return f.arg(v, 0, 'f').replace(r, e);
}

class FontSizeAction::Private
{
    public:
        Private(FontSizeAction *parent)
            : q(parent)
        {
        }

        void init();

        FontSizeAction *q;
};

// BEGIN FontSizeAction
FontSizeAction::FontSizeAction(QObject *parent)
  : KSelectAction(parent),
    d(new Private(this))
{
  d->init();
}

FontSizeAction::FontSizeAction(const QString &text, QObject *parent)
  : KSelectAction(text, parent),
    d(new Private(this))
{
  d->init();
}

FontSizeAction::FontSizeAction(const QIcon &icon, const QString &text, QObject *parent)
  : KSelectAction(icon, text, parent),
    d(new Private(this))
{
  d->init();
}

FontSizeAction::~FontSizeAction()
{
  delete d;
}

void FontSizeAction::Private::init()
{
    q->setEditable( true );
    QFontDatabase fontDB;
    const QList<int> sizes = fontDB.standardSizes();
    QStringList lst;
    for ( QList<int>::ConstIterator it = sizes.begin(); it != sizes.end(); ++it ) {
        lst.append( format(*it) );
    }
    q->setItems( lst );
}

void FontSizeAction::setFontSize( qreal size )
{
    if ( size == fontSize() ) {
        const QString test = format(size);
        Q_FOREACH(QAction* action, actions()) {
          if (action->text() == test) {
              setCurrentAction(action);
              return;
          }
        }
    }

    if ( size < 1 ) {
        qWarning() << "FontSizeAction: Size " << size << " is out of range";
        return;
    }

    QAction* a = action( format(size) );
    if ( !a ) {
        // Insert at the correct position in the list (to keep sorting)
        QList<qreal> lst;
        // Convert to list of qreals
        QStringListIterator itemsIt( items() );
	QStringList debug_lst = items();

        while ( itemsIt.hasNext() ) {
            lst.append( itemsIt.next().toDouble() );
        }
        //add the new size
        lst.append( size );

        //remove actions
        clear();

        // Sort the list
        std::sort( lst.begin(), lst.end() );
        Q_FOREACH( qreal it, lst ) {
            QAction* const action = addAction( format(it) );
            if (it == size) {
                setCurrentAction(action);
            }
        }

    } else {
        setCurrentAction( a );
    }
}

qreal FontSizeAction::fontSize() const
{
  return currentText().toDouble();
}

void FontSizeAction::actionTriggered( QAction* action )
{
    emit fontSizeChanged( action->text().toDouble() );
    KSelectAction::actionTriggered( action );
}
