kdelibs/kdeui/actions/kfontaction.cpp

/* 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>
              (C) 2007 Clarence Dang <dang@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 "kfontaction.h"

#include <QToolBar>
#include <QFontDatabase>
#include <QFontComboBox>
#include <QStringListModel>

#include <kdebug.h>
#include <kicon.h>
#include <klocale.h>

class KFontAction::KFontActionPrivate
{
    public:
        KFontActionPrivate(KFontAction *parent)
            : q(parent),
              settingFont(0)
        {
        }

        void _k_slotFontChanged(const QFont &font)
        {
            kDebug(129) << "KFontAction - slotFontChanged("
                        << font.family() << ") settingFont=" << settingFont;
            if (settingFont)
                return;

            q->setFont(font.family());
            q->triggered(font.family());

            kDebug(129) << "\tslotFontChanged done";
        }


        KFontAction *q;
        int settingFont;
};

KFontAction::KFontAction(QObject *parent)
  : KSelectAction(parent), d(new KFontActionPrivate(this))
{
    KSelectAction::setItems( QFontDatabase().families() );
    setEditable( true );
}

KFontAction::KFontAction(const QString & text, QObject *parent)
  : KSelectAction(text, parent), d(new KFontActionPrivate(this))
{
    KSelectAction::setItems( QFontDatabase().families() );
    setEditable( true );
}

KFontAction::KFontAction(const KIcon &icon, const QString &text, QObject *parent)
  : KSelectAction(icon, text, parent), d(new KFontActionPrivate(this))
{
    KSelectAction::setItems( QFontDatabase().families() );
    setEditable( true );
}

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

QString KFontAction::font() const
{
    return currentText();
}

QWidget* KFontAction::createWidget(QWidget* parent)
{
    kDebug(129) << "KFontAction::createWidget()";
#warning FIXME: items need to be converted
    // This is the visual element on the screen.  This method overrides
    // the KSelectAction one, preventing KSelectAction from creating its
    // regular KComboBox.
    QFontComboBox *cb = new QFontComboBox( parent );
    QStringListModel *cbmodel = qobject_cast<QStringListModel*>(cb->model());
    Q_ASSERT(cbmodel);
    cbmodel->setStringList(items());

    kDebug(129) << "\tset=" << font();
    // Do this before connecting the signal so that nothing will fire.
    cb->setCurrentFont( QFont( font().toLower() ) );
    kDebug(129) << "\tspit back=" << cb->currentFont().family();

    connect( cb, SIGNAL(currentFontChanged(QFont)), SLOT(_k_slotFontChanged(QFont)) );
    cb->setMinimumWidth( cb->sizeHint().width() );
    return cb;
}

void KFontAction::setFont( const QString &family )
{
    kDebug(129) << "KFontAction::setFont(" << family << ")";

    // Suppress triggered(QString) signal and prevent recursive call to ourself.
    d->settingFont++;

    foreach(QWidget *w, createdWidgets())
    {
        QFontComboBox *cb = qobject_cast<QFontComboBox *>(w);
        kDebug(129) << "\tw=" << w << "cb=" << cb;

        if(!cb) continue;

        cb->setCurrentFont(QFont(family.toLower()));
        kDebug(129) << "\t\tw spit back=" << cb->currentFont().family();
    }

    d->settingFont--;

    kDebug(129) << "\tcalling setCurrentAction()";

    QString lowerName = family.toLower();
    if (setCurrentAction(lowerName, Qt::CaseInsensitive))
       return;

    int i = lowerName.indexOf(" [");
    if (i > -1)
    {
       lowerName = lowerName.left(i);
       if (setCurrentAction(lowerName, Qt::CaseInsensitive))
          return;
    }

    lowerName += " [";
    if (setCurrentAction(lowerName, Qt::CaseInsensitive))
      return;

    // TODO: Inconsistent state if QFontComboBox::setCurrentFont() succeeded
    //       but setCurrentAction() did not and vice-versa.
    kDebug(129) << "Font not found " << family.toLower();
}

#include "moc_kfontaction.cpp"