interpreter/preprocessor/faust-0.9.47mr3/compiler/draw/schema/enlargedSchema.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 #include "enlargedSchema.h"
  23 #include <assert.h>
  24 #include <iostream>
  25
  26 using namespace std;
  27
  28 /**
  29  * Returns an enlarged schema, but only if really needed
  30  * that is if the requiered width is greater that the schema width.
  31  */
  32 schema* makeEnlargedSchema ( schema* s, double width )
  33 {
  34         if (width > s->width()) {
  35                 return new enlargedSchema(s, width);
  36         } else {
  37                 return s;
  38         }
  39 }
  40
  41 /**
  42  * Put additional space left and right of a schema so that the result has
  43  * a certain width. The wires are prolonged accordingly.
  44  */
  45 enlargedSchema::enlargedSchema( schema* s, double width )
  46         :       schema(s->inputs(), s->outputs(), width, s->height()),
  47                 fSchema(s)
  48 {
  49     for (unsigned int i=0; i<inputs(); i++)     fInputPoint.push_back(point(0,0));
  50     for (unsigned int i=0; i<outputs(); i++)    fOutputPoint.push_back(point(0,0));
  51 }
  52
  53
  54 /**
  55  * Define the graphic position of the schema. Computes the graphic
  56  * position of all the elements, in particular the inputs and outputs.
  57  * This method must be called before draw(), otherwise draw is not allowed
  58  */
  59 void enlargedSchema::place(double ox, double oy, int orientation)
  60 {
  61         beginPlace(ox, oy, orientation);
  62
  63         double dx = (width() - fSchema->width())/2;
  64         fSchema->place(ox+dx, oy, orientation);
  65
  66         if (orientation == kRightLeft) {
  67                 dx = -dx;
  68         }
  69
  70         for (unsigned int i=0; i < inputs(); i++) {
  71                 point p = fSchema->inputPoint(i);
  72         fInputPoint[i] = point(p.x-dx, p.y); //, p.z);
  73         }
  74
  75         for (unsigned int i=0; i < outputs(); i++) {
  76                 point p = fSchema->outputPoint(i);
  77         fOutputPoint[i] = point(p.x+dx, p.y); //, p.z);
  78         }
  79
  80         endPlace();
  81 }
  82
  83 /**
  84  * Returns an input point
  85  */
  86 point enlargedSchema::inputPoint(unsigned int i)        const
  87 {
  88         assert (placed());
  89         assert (i < inputs());
  90         return fInputPoint[i];
  91 }
  92
  93 /**
  94  * Returns an output point
  95  */
  96 point enlargedSchema::outputPoint(unsigned int i)       const
  97 {
  98         assert (placed());
  99         assert (i < outputs());
 100         return fOutputPoint[i];
 101 }
 102
 103 /**
 104  * Draw the enlarged schema. This methos can only
 105  * be called after the block have been placed
 106  */
 107 void enlargedSchema::draw(device& dev)
 108 {
 109     assert(placed());
 110
 111     fSchema->draw(dev);
 112 #if 0
 113     // draw enlarge input wires
 114     for (unsigned int i=0; i<inputs(); i++) {
 115         point p = inputPoint(i);
 116         point q = fSchema->inputPoint(i);
 117         if ( (p.z>=0) && (q.z>=0) ) dev.trait(p.x, p.y, q.x, q.y);
 118     }
 119
 120     // draw enlarge output wires
 121     for (unsigned int i=0; i<outputs(); i++) {
 122         point p = outputPoint(i);
 123         point q = fSchema->outputPoint(i);
 124         if ( (p.z>=0) && (q.z>=0) ) dev.trait(p.x, p.y, q.x, q.y);
 125     }
 126 #endif
 127 }
 128
 129 /**
 130  * Draw the enlarged schema. This methos can only
 131  * be called after the block have been placed
 132  */
 133 void enlargedSchema::collectTraits(collector& c)
 134 {
 135     assert(placed());
 136
 137     fSchema->collectTraits(c);
 138
 139     // draw enlarge input wires
 140     for (unsigned int i=0; i<inputs(); i++) {
 141         point p = inputPoint(i);
 142         point q = fSchema->inputPoint(i);
 143         c.addTrait(trait(p,q));     // in->out direction
 144     }
 145
 146     // draw enlarge output wires
 147     for (unsigned int i=0; i<outputs(); i++) {
 148         point q = fSchema->outputPoint(i);
 149         point p = outputPoint(i);
 150         c.addTrait(trait(q,p));     // in->out direction
 151     }
 152 }