Merge branch 'newtree'
[Faustine.git] / interpretor / preprocessor / faust-0.9.47mr3 / compiler / draw / schema / mergeSchema.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 "mergeSchema.h"
24 #include <iostream>
25 #include <assert.h>
26
27 using namespace std;
28
29
30 /**
31 * Creates a new merge schema. Cables are enlarged to dWire.
32 * The horizontal gap between the two subschema is such that
33 * the connections are not too slopy.
34 */
35 schema* makeMergeSchema (schema* s1, schema* s2)
36 {
37 // avoid ugly diagram by ensuring at least dWire width
38 schema * a = makeEnlargedSchema(s1, dWire);
39 schema * b = makeEnlargedSchema(s2, dWire);
40 double hgap = (a->height()+b->height())/4;
41 return new mergeSchema(a,b,hgap);
42 }
43
44
45 /**
46 * Constructor for a merge schema s1 :> s2 where the outputs
47 * of s1 are merged to the inputs of s2. The constructor is
48 * private in order to enforce the usage of makeMergeSchema
49 */
50 mergeSchema::mergeSchema (schema* s1, schema* s2, double hgap)
51 : schema( s1->inputs(),
52 s2->outputs(),
53 s1->width() + s2->width() + hgap,
54 max(s1->height(), s2->height()) ),
55 fSchema1(s1),
56 fSchema2(s2),
57 fHorzGap(hgap)
58 {
59 }
60
61
62 /**
63 * Places the two subschema horizontaly, centered, with enough gap for
64 * the connections
65 */
66 void mergeSchema::place(double ox, double oy, int orientation)
67 {
68 beginPlace(ox, oy, orientation);
69
70 double dy1 = max(0.0, fSchema2->height()-fSchema1->height()) / 2.0;
71 double dy2 = max(0.0, fSchema1->height()-fSchema2->height()) / 2.0;
72
73 if (orientation == kLeftRight) {
74 fSchema1->place(ox, oy+dy1, orientation);
75 fSchema2->place(ox+fSchema1->width()+fHorzGap, oy+dy2, orientation);
76 } else {
77 fSchema2->place(ox, oy+dy2, orientation);
78 fSchema1->place(ox+fSchema2->width()+fHorzGap, oy+dy1, orientation);
79 }
80 endPlace();
81 }
82
83
84 /**
85 * The inputs of s1 :> s2 are the inputs of s1
86 */
87 point mergeSchema::inputPoint(unsigned int i) const
88 {
89 return fSchema1->inputPoint(i);
90 }
91
92
93 /**
94 * The outputs of s1 :> s2 are the outputs of s2
95 */
96 point mergeSchema::outputPoint(unsigned int i) const
97 {
98 return fSchema2->outputPoint(i);
99 }
100
101
102 /**
103 * Draw the two sub schema and the connections between them
104 */
105 void mergeSchema::draw(device& dev)
106 {
107 assert(placed());
108
109 // draw the two subdiagrams
110 fSchema1->draw(dev);
111 fSchema2->draw(dev);
112
113 #if 0
114 unsigned int r = fSchema2->inputs();
115 assert(r>0);
116
117 // draw the connections between them
118 for (unsigned int i=0; i<fSchema1->outputs(); i++) {
119 point p = fSchema1->outputPoint(i);
120 point q = fSchema2->inputPoint(i%r);
121 dev.trait(p.x, p.y, q.x, q.y);
122 }
123 #endif
124 }
125
126
127 /**
128 * Draw the two sub schema and the connections between them
129 */
130 void mergeSchema::collectTraits(collector& c)
131 {
132 assert(placed());
133
134 // draw the two subdiagrams
135 fSchema1->collectTraits(c);
136 fSchema2->collectTraits(c);
137
138 unsigned int r = fSchema2->inputs();
139 assert(r>0);
140
141 // draw the connections between them
142 for (unsigned int i=0; i<fSchema1->outputs(); i++) {
143 point p = fSchema1->outputPoint(i);
144 point q = fSchema2->inputPoint(i%r);
145 c.addTrait(trait(p,q));
146 }
147 }
148
149