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::onScheduleChanged()
  90 {
  91   QApplication::postEvent( this, new SCRequestEvent( Event_SCRequest_Sched ) );
  92 }
  93
  94 void LangClient::onInput()
  95 {
  96   QApplication::postEvent( this, new SCRequestEvent( Event_SCRequest_Input ) );
  97 }
  98
  99 void LangClient::onQuit( int exitCode )
 100 {
 101   QApplication::postEvent( this,
 102     new SCRequestEvent( Event_SCRequest_Quit, exitCode ) );
 103 }
 104
 105 void LangClient::onRecompileLibrary()
 106 {
 107   QApplication::postEvent( this, new SCRequestEvent( Event_SCRequest_Recompile ) );
 108 }
 109
 110 void LangClient::customEvent( QEvent *e )
 111 {
 112   int type = e->type();
 113   switch( type ) {
 114     case Event_SCRequest_Input:
 115       doInput();
 116       break;
 117     case Event_SCRequest_Sched:
 118       doSchedule();
 119       break;
 120     case Event_SCRequest_Quit:
 121     {
 122       int code = static_cast<SCRequestEvent*>(e)->data.toInt();
 123       qcDebugMsg( 1, QString("Quit requested with code %1").arg(code) );
 124       qApp->exit( code );
 125       break;
 126     }
 127     case Event_SCRequest_Recompile:
 128       recompileLibrary();
 129       break;
 130     default: ;
 131   }
 132 }
 133
 134 void LangClient::timerEvent( QTimerEvent *e )
 135 {
 136   if( e->timerId() == appClockTimer.timerId() ) doSchedule();
 137 }