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99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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// oxygenmnemonics.cpp
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// enable/disable mnemonics display
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// -------------------
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//
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// Copyright (C) 2011 Hugo Pereira Da Costa <hugo.pereira@free.fr>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License version 2 as published by the Free Software Foundation.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public License
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// along with this library; see the file COPYING.LIB. If not, write to
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// the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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// Boston, MA 02110-1301, USA.
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//////////////////////////////////////////////////////////////////////////////
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#include "oxygenmnemonics.h"
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#include <QtGui/qevent.h>
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#include <QtGui/QWidget>
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namespace Oxygen
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{
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//____________________________________________________
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void Mnemonics::setMode( int mode )
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{
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switch( mode )
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{
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case StyleConfigData::MN_NEVER:
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qApp->removeEventFilter( this );
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setEnabled( false );
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break;
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case StyleConfigData::MN_AUTO:
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qApp->removeEventFilter( this );
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qApp->installEventFilter( this );
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setEnabled( false );
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break;
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case StyleConfigData::MN_ALWAYS:
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default:
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qApp->removeEventFilter( this );
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setEnabled( true );
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break;
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}
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return;
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}
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//____________________________________________________
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bool Mnemonics::eventFilter( QObject*, QEvent* event )
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{
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switch( event->type() )
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{
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case QEvent::KeyPress:
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if( static_cast<QKeyEvent*>(event)->key() == Qt::Key_Alt )
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{ setEnabled( true ); }
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break;
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case QEvent::KeyRelease:
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if( static_cast<QKeyEvent*>(event)->key() == Qt::Key_Alt )
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{ setEnabled( false ); }
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break;
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default:
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break;
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}
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return false;
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}
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//____________________________________________________
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void Mnemonics::setEnabled( bool value )
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{
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if( _enabled == value ) return;
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_enabled = value;
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// update all top level widgets
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foreach( QWidget* widget, qApp->topLevelWidgets() )
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{ widget->update(); }
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}
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}
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