interpreter/preprocessor/faust-0.9.47mr3/compiler/draw/schema/collector.cpp

   1 /************************************************************************
   2  ************************************************************************
   3     FAUST compiler
   4     Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
   5     ---------------------------------------------------------------------
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  ************************************************************************
  20  ************************************************************************/
  21
  22
  23 #include "schema.h"
  24 #include <assert.h>
  25
  26 using namespace std;
  27
  28
  29 void collector::computeVisibleTraits()
  30 {
  31     bool modified;
  32
  33     do {
  34         modified = false;
  35         for (set<trait>::iterator p = fTraits.begin(); p != fTraits.end(); p++) {
  36             if (fWithInput.count(*p) == 0) {        // not connected to a real output
  37                 if (fOutputs.count(p->start) > 0) {
  38                     fWithInput.insert(*p);          // the cable is connected to a real output
  39                     fOutputs.insert(p->end);        // end become a real output too
  40                     modified = true;
  41                 }
  42             }
  43             if (fWithOutput.count(*p) == 0) {       // not connected to a real input
  44                 if (fInputs.count(p->end) > 0) {
  45                     fWithOutput.insert(*p);         // the cable is connected to a real input
  46                     fInputs.insert(p->start);       // start become a real input too
  47                     modified = true;
  48                 }
  49             }
  50         }
  51     } while (modified);
  52 }
  53
  54 bool collector::isVisible(const trait& t)
  55 {
  56     return fWithInput.count(t) && fWithOutput.count(t);
  57 }
  58
  59 void collector::draw(device& dev)
  60 {
  61     computeVisibleTraits();
  62     for (set<trait>::iterator p = fTraits.begin(); p != fTraits.end(); p++) {
  63         if (isVisible(*p)) p->draw(dev);
  64     }
  65 }
  66