QtCollider/QcApplication.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010 Jakob Leben (jakob.leben@gmail.com)
   4 *
   5 * This file is part of SuperCollider Qt GUI.
   6 *
   7 * This program is free software: you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation, either version 3 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *
  20 ************************************************************************/
  21
  22 #ifndef QC_APPLICATION_H
  23 #define QC_APPLICATION_H
  24
  25 #include "Common.h"
  26
  27 #include <QApplication>
  28 #include <QEventLoop>
  29 #include <QMutex>
  30
  31 namespace QtCollider {
  32
  33 class EventProcessor : public QObject {
  34 public:
  35   void work() {
  36     QApplication::postEvent( this, new QEvent(QEvent::User) );
  37     _loop.exec();
  38   }
  39   void customEvent( QEvent *e ) {
  40     _loop.exit();
  41   }
  42 private:
  43   QEventLoop _loop;
  44 };
  45
  46 } // namespace QtCollider
  47
  48 class QcApplication : public QApplication
  49 {
  50   Q_OBJECT
  51
  52   public:
  53     QcApplication( int & argc, char ** argv );
  54     virtual ~QcApplication();
  55     static bool compareThread(); // NOTE: language must be locked
  56     static void processEvents() {
  57       if( _instance ) _instance->_eventProc.work();
  58     }
  59
  60   public Q_SLOTS:
  61     void interpret( const QString & code, bool printResult = true );
  62
  63   private:
  64     bool event( QEvent * );
  65
  66     QtCollider::EventProcessor _eventProc;
  67
  68     static QMutex _mutex;
  69     static QcApplication *_instance;
  70 };
  71
  72 #endif // QC_APPLICATION_H