interpretor/preprocessor/faust-0.9.47mr3/compiler/draw/schema/decorateSchema.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 "decorateSchema.h"
  23 #include <iostream>
  24 #include <assert.h>
  25
  26 using namespace std;
  27
  28 /**
  29  * Creates a new decorated schema
  30  */
  31 schema* makeDecorateSchema ( schema* s, double margin, const string& text )
  32 {
  33         return new decorateSchema (s, margin, text);
  34 }
  35
  36
  37 /**
  38  * A decorateSchema is a schema surrounded by a dashed rectangle with a
  39  * label on the top left. The rectangle is placed at half the margin
  40  * parameter. The constructor is made private to enforce the usage of
  41  * makeDecorateSchema
  42  */
  43 decorateSchema::decorateSchema( schema* s, double margin, const string& text )
  44         :       schema(s->inputs(), s->outputs(), s->width()+2*margin, s->height()+2*margin),
  45                 fSchema(s),
  46                 fMargin(margin),
  47                 fText(text)
  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 decorateSchema::place(double ox, double oy, int orientation)
  60 {
  61         beginPlace(ox, oy, orientation);
  62
  63         fSchema->place(ox+fMargin, oy+fMargin, orientation);
  64
  65         double m = fMargin;
  66         if (orientation == kRightLeft) {
  67                 m = -m;
  68         }
  69
  70         for (unsigned int i=0; i < inputs(); i++) {
  71                 point p = fSchema->inputPoint(i);
  72         fInputPoint[i] = point(p.x-m, 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+m, p.y); //, p.z);
  78         }
  79
  80         endPlace();
  81 }
  82
  83 /**
  84  * Returns an input point
  85  */
  86 point decorateSchema::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 decorateSchema::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 methods can only
 105  * be called after the block have been placed
 106  */
 107 void decorateSchema::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         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         dev.trait(p.x, p.y, q.x, q.y);
 125     }
 126 #endif
 127     // define the coordinates of the frame
 128     double tw = (2+fText.size())*dLetter*0.75;
 129     double x0 = x() + fMargin/2;                                // left
 130     double y0 = y() + fMargin/2;                                // top
 131     double x1 = x() + width() - fMargin/2;              // right
 132     double y1 = y() + height() - fMargin/2;             // bottom
 133     //double tl = x0 + 2*dWire;                                 // left of text zone
 134     double tl = x() + fMargin;                                  // left of text zone
 135     double tr = min(tl+tw, x1);                                 // right of text zone
 136
 137     // draw the surronding frame
 138     dev.dasharray(x0, y0, x0, y1);                              // left line
 139     dev.dasharray(x0, y1, x1, y1);                              // bottom line
 140     dev.dasharray(x1, y1, x1, y0);                              // right line
 141     dev.dasharray(x0, y0, tl, y0);                              // top segment before text
 142     dev.dasharray(tr, y0, x1, y0);                              // top segment after text
 143
 144     // draw the label
 145     dev.label(tl, y0, fText.c_str());   //
 146 }
 147
 148 /**
 149  * Draw the enlarged schema. This methods can only
 150  * be called after the block have been placed
 151  */
 152 void decorateSchema::collectTraits(collector& c)
 153 {
 154     assert(placed());
 155
 156     fSchema->collectTraits(c);
 157
 158     // draw enlarge input wires
 159     for (unsigned int i=0; i<inputs(); i++) {
 160         point p = inputPoint(i);
 161         point q = fSchema->inputPoint(i);
 162         c.addTrait(trait(p,q));     // in->out direction
 163     }
 164
 165     // draw enlarge output wires
 166     for (unsigned int i=0; i<outputs(); i++) {
 167         point p = fSchema->outputPoint(i);
 168         point q = outputPoint(i);
 169         c.addTrait(trait(p,q));     // in->out direction
 170     }
 171 }