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143 lines
3.0 KiB
143 lines
3.0 KiB
/*
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*
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* $Id: k3bthreadwidget.cpp 619556 2007-01-03 17:38:12Z trueg $
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* Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org>
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*
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* This file is part of the K3b project.
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* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* See the file "COPYING" for the exact licensing terms.
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*/
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#include "k3bthreadwidget.h"
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#include "k3bdeviceselectiondialog.h"
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#include <k3bdevice.h>
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#include <tqevent.h>
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#include <tqapplication.h>
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#include <tqwaitcondition.h>
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class K3bThreadWidget::Data
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{
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public:
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int id;
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void* data;
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TQWaitCondition con;
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};
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class K3bThreadWidget::DeviceSelectionEvent : public TQCustomEvent
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{
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public:
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DeviceSelectionEvent( TQWidget* parent, const TQString& text, int id )
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: TQCustomEvent( TQEvent::User + 22 ),
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m_parent(parent),
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m_text(text),
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m_id(id) {
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}
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TQWidget* parent() const { return m_parent; }
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const TQString& text() const { return m_text; }
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int id() const { return m_id; }
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private:
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TQWidget* m_parent;
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TQString m_text;
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int m_id;
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};
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K3bThreadWidget* K3bThreadWidget::s_instance = 0;
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K3bThreadWidget::K3bThreadWidget()
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: TQObject(),
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m_idCounter(1)
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{
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m_dataMap.setAutoDelete(true);
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s_instance = this;
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}
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K3bThreadWidget::~K3bThreadWidget()
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{
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s_instance = 0;
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}
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int K3bThreadWidget::getNewId()
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{
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// create new data
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Data* data = new Data;
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data->id = m_idCounter++;
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data->data = 0;
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m_dataMap.insert( data->id, data );
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return data->id;
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}
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void K3bThreadWidget::clearId( int id )
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{
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m_dataMap.remove( id );
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}
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K3bThreadWidget::Data* K3bThreadWidget::data( int id )
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{
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return m_dataMap[id];
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}
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K3bThreadWidget* K3bThreadWidget::instance()
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{
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if( !s_instance )
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s_instance = new K3bThreadWidget();
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return s_instance;
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}
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// static
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K3bDevice::Device* K3bThreadWidget::selectDevice( TQWidget* parent,
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const TQString& text )
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{
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// request a new data set
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Data* data = K3bThreadWidget::instance()->data( K3bThreadWidget::instance()->getNewId() );
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// inform the instance about the request
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TQApplication::postEvent( K3bThreadWidget::instance(),
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new K3bThreadWidget::DeviceSelectionEvent( parent, text, data->id ) );
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// wait for the result to be ready
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data->con.wait();
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K3bDevice::Device* dev = static_cast<K3bDevice::Device*>( data->data );
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// delete the no longer needed data
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K3bThreadWidget::instance()->clearId( data->id );
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return dev;
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}
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void K3bThreadWidget::customEvent( TQCustomEvent* e )
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{
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if( DeviceSelectionEvent* dse = dynamic_cast<DeviceSelectionEvent*>(e) ) {
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// create dialog
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K3bDevice::Device* dev = K3bDeviceSelectionDialog::selectDevice( dse->parent(), dse->text() );
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// return it to the thread
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Data* dat = data( dse->id() );
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dat->data = static_cast<void*>( dev );
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// wake the thread
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dat->con.wakeAll();
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}
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}
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#include "k3bthreadwidget.moc"
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