interpretor/preprocessor/faust-0.9.47mr3/compiler/draw/schema/topSchema.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 <stdlib.h>
  23 #include "topSchema.h"
  24 #include <iostream>
  25 #include <assert.h>
  26 #include <cstdlib>
  27
  28 using namespace std;
  29
  30 /**
  31  * Creates a new top schema
  32  */
  33 schema* makeTopSchema (schema* s, double margin, const string& text, const string& link)
  34 {
  35         return new topSchema (makeDecorateSchema(s, margin/2, text), margin/2, "", link);
  36 }
  37
  38
  39 /**
  40  * A topSchema is a schema surrounded by a dashed rectangle with a
  41  * label on the top left. The rectangle is placed at half the margin
  42  * parameter. Arrows are added to the outputs. The constructor is
  43  * made private to enforce the usage of makeTopSchema.
  44  */
  45 topSchema::topSchema( schema* s, double margin, const string& text, const string& link )
  46         :       schema(0, 0, s->width()+2*margin, s->height()+2*margin),
  47                 fSchema(s),
  48                 fMargin(margin),
  49                 fText(text),
  50                 fLink(link)
  51 {
  52 }
  53
  54
  55 /**
  56  * Define the graphic position of the schema. Computes the graphic
  57  * position of all the elements, in particular the inputs and outputs.
  58  * This method must be called before draw(), otherwise draw is not allowed
  59  */
  60 void topSchema::place(double ox, double oy, int orientation)
  61 {
  62         beginPlace(ox, oy, orientation);
  63
  64         fSchema->place(ox+fMargin, oy+fMargin, orientation);
  65         endPlace();
  66 }
  67
  68 /**
  69  * Top schema has no input
  70  */
  71 point topSchema::inputPoint(unsigned int i) const
  72 {
  73         assert (placed());
  74         assert (i < inputs());
  75         exit(1);
  76 }
  77
  78 /**
  79  * Top schema has no output
  80  */
  81 point topSchema::outputPoint(unsigned int i) const
  82 {
  83         assert (placed());
  84         assert (i < outputs());
  85         exit(1);
  86 }
  87
  88 /**
  89  * Draw the enlarged schema. This methos can only
  90  * be called after the block have been placed
  91  */
  92 void topSchema::draw(device& dev)
  93 {
  94     assert(placed());
  95
  96     // draw a background white rectangle
  97     dev.rect(x(), y(), width()-1, height()-1, "#ffffff", fLink.c_str());
  98
  99     // draw the label
 100     dev.label(x()+fMargin, y()+fMargin/2, fText.c_str());
 101
 102     fSchema->draw(dev);
 103
 104     // draw arrows at output points of schema
 105     for (unsigned int i=0; i<fSchema->outputs(); i++) {
 106         point p = fSchema->outputPoint(i);
 107         dev.fleche(p.x, p.y, 0, orientation());
 108     }
 109 }
 110
 111 /**
 112  * Draw the enlarged schema. This methos can only
 113  * be called after the block have been placed
 114  */
 115 void topSchema::collectTraits(collector& c)
 116 {
 117     assert(placed());
 118     fSchema->collectTraits(c);
 119
 120     // draw arrows at output points of schema
 121     for (unsigned int i=0; i<fSchema->inputs(); i++) {
 122         point p = fSchema->inputPoint(i);
 123         c.addOutput(p);;
 124     }
 125
 126     // draw arrows at output points of schema
 127     for (unsigned int i=0; i<fSchema->outputs(); i++) {
 128         point p = fSchema->outputPoint(i);
 129         c.addInput(p);;
 130     }
 131
 132
 133 }