QtCollider/LanguageClient.cpp

   1 /************************************************************************
   2 *
   3 * Copyright 2011 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 #include "LanguageClient.h"
  23 #include "QcApplication.h"
  24 #include "QtCollider.h"
  25
  26 #include <qmath.h>
  27
  28 extern double elapsedTime();
  29
  30 using namespace QtCollider;
  31
  32 QC_PUBLIC
  33 int QtCollider::run(int argc, char** argv) {
  34   QtCollider::LangClient app("sclang");
  35   return app.run(argc, argv);
  36 }
  37
  38 LangClient::LangClient( const char* name )
  39 : SC_TerminalClient( name )
  40 {
  41 }
  42
  43 void LangClient::doInput()
  44 {
  45   qcDebugMsg(2, "input");
  46   lockInput();
  47   interpretInput();
  48   QApplication::removePostedEvents( this, Event_SCRequest_Input );
  49   unlockInput();
  50 }
  51
  52 void LangClient::doSchedule()
  53 {
  54   qcDebugMsg(2, "tick");
  55
  56   double t;
  57   bool next;
  58
  59   lock();
  60   next = tickLocked( &t );
  61   QApplication::removePostedEvents( this, Event_SCRequest_Sched );
  62   unlock();
  63
  64   flush();
  65
  66   if( next ) {
  67     t -= elapsedTime();
  68     t *= 1000;
  69     int ti = qMax(0,qCeil(t));
  70     qcDebugMsg(2, QString("next at %1").arg(ti) );
  71     appClockTimer.start( ti, this );
  72   }
  73   else {
  74     appClockTimer.stop();
  75   }
  76 }
  77
  78 void LangClient::commandLoop()
  79 {
  80   doSchedule();
  81   QcApplication::instance()->exec();
  82 }
  83
  84 void LangClient::daemonLoop()
  85 {
  86   commandLoop();
  87 }
  88
  89 void LangClient::sendSignal( Signal sig )
  90 {
  91   QtCollider::EventType type;
  92   switch( sig )
  93   {
  94     case sig_input:
  95       type = Event_SCRequest_Input; break;
  96     case sig_sched:
  97       type = Event_SCRequest_Sched; break;
  98     case sig_recompile:
  99       type = Event_SCRequest_Recompile; break;
 100     case sig_stop:
 101       type = Event_SCRequest_Stop; break;
 102     default:
 103       return;
 104   }
 105
 106   QApplication::postEvent( this, new SCRequestEvent(type) );
 107 }
 108
 109 void LangClient::onQuit( int exitCode )
 110 {
 111   QApplication::postEvent( this,
 112     new SCRequestEvent( Event_SCRequest_Quit, exitCode ) );
 113 }
 114
 115 void LangClient::customEvent( QEvent *e )
 116 {
 117   int type = e->type();
 118   switch( type ) {
 119     case Event_SCRequest_Input:
 120       doInput();
 121       break;
 122     case Event_SCRequest_Sched:
 123       doSchedule();
 124       break;
 125     case Event_SCRequest_Stop:
 126       stopMain();
 127       break;
 128     case Event_SCRequest_Quit:
 129     {
 130       int code = static_cast<SCRequestEvent*>(e)->data.toInt();
 131       qcDebugMsg( 1, QString("Quit requested with code %1").arg(code) );
 132       qApp->exit( code );
 133       break;
 134     }
 135     case Event_SCRequest_Recompile:
 136       recompileLibrary();
 137       break;
 138     default: ;
 139   }
 140 }
 141
 142 void LangClient::timerEvent( QTimerEvent *e )
 143 {
 144   if( e->timerId() == appClockTimer.timerId() ) doSchedule();
 145 }