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ThreadedUpdatableTextView.h
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00001 /********************************************************************
00002 **                Image Component Library (ICL)                    **
00003 **                                                                 **
00004 ** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
00005 **                         Neuroinformatics Group                  **
00006 ** Website: www.iclcv.org and                                      **
00007 **          http://opensource.cit-ec.de/projects/icl               **
00008 **                                                                 **
00009 ** File   : ICLQt/src/ICLQt/ThreadedUpdatableTextView.h            **
00010 ** Module : ICLQt                                                  **
00011 ** Authors: Christof Elbrechter                                    **
00012 **                                                                 **
00013 **                                                                 **
00014 ** GNU LESSER GENERAL PUBLIC LICENSE                               **
00015 ** This file may be used under the terms of the GNU Lesser General **
00016 ** Public License version 3.0 as published by the                  **
00017 **                                                                 **
00018 ** Free Software Foundation and appearing in the file LICENSE.LGPL **
00019 ** included in the packaging of this file.  Please review the      **
00020 ** following information to ensure the license requirements will   **
00021 ** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
00022 **                                                                 **
00023 ** The development of this software was supported by the           **
00024 ** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
00025 ** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
00026 ** Forschungsgemeinschaft (DFG) in the context of the German       **
00027 ** Excellence Initiative.                                          **
00028 **                                                                 **
00029 ********************************************************************/
00030 
00031 #pragma once
00032 
00033 #include <ICLUtils/CompatMacros.h>
00034 #include <QTextEdit>
00035 #include <QtCore/QEvent>
00036 #include <string>
00037 
00038 namespace icl{
00039   namespace qt{
00040   
00041     class ICLQt_API ThreadedUpdatableTextView : public QTextEdit{
00042       static const QEvent::Type ADD_TEXT=(QEvent::Type)(QEvent::User+1);
00043       static const QEvent::Type CLEAR_TEXT=(QEvent::Type)(QEvent::User+2);
00044   
00045       struct AddTextEvent : public QEvent{
00046         std::string text;
00047         AddTextEvent(const std::string &text):
00048         QEvent(ADD_TEXT),text(text){}
00049       };
00050       struct ClearTextEvent : public QEvent{
00051         ClearTextEvent():
00052         QEvent(CLEAR_TEXT){}
00053       };
00054       public:
00055       ThreadedUpdatableTextView(QWidget *parent=0):
00056       QTextEdit(parent){}
00057   
00058       void appendTextFromOtherThread(const std::string &text);
00059       void clearTextFromOtherThread();
00060   
00062       virtual bool event ( QEvent * event );
00063     };
00064   } // namespace qt
00065 }
00066 
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