/*************************************************************************
* Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
*************************************************************************/
#include "adwaitamnemonics.h"
#include "adwaita.h"
#include <QKeyEvent>
#include <QWidget>
namespace Adwaita
{
//____________________________________________________
void Mnemonics::setMode(int mode)
{
switch (mode) {
case Adwaita::MN_NEVER:
qApp->removeEventFilter(this);
setEnabled(false);
break;
case Adwaita::MN_ALWAYS:
qApp->removeEventFilter(this);
setEnabled(true);
break;
case Adwaita::MN_AUTO:
qApp->removeEventFilter(this);
qApp->installEventFilter(this);
setEnabled(false);
break;
default:
break;
}
return;
}
//____________________________________________________
bool Mnemonics::eventFilter(QObject *, QEvent *event)
{
switch (event->type()) {
case QEvent::KeyPress:
if (static_cast<QKeyEvent *>(event)->key() == Qt::Key_Alt) {
setEnabled(true);
}
break;
case QEvent::KeyRelease:
if (static_cast<QKeyEvent *>(event)->key() == Qt::Key_Alt) {
setEnabled(false);
}
break;
case QEvent::ApplicationStateChange:
setEnabled(false);
break;
default:
break;
}
return false;
}
//____________________________________________________
void Mnemonics::setEnabled(bool value)
{
if (_enabled == value) {
return;
}
_enabled = value;
// update all top level widgets
foreach (QWidget *widget, qApp->topLevelWidgets()) {
widget->update();
}
}
} // namespace Adwaita