Source code: org/pqt/autorib/rib/RIBDefaultPrimitive.java
1 //AutoRIB
2 // Copyright © 1998 - 2002, P W Quint
3 //
4 // Contact: autorib00@aol.com
5 //
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public
8 // License as published by the Free Software Foundation; either
9 // version 2 of the License, or (at your option) any later version.
10 //
11 // This library 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 GNU
14 // General Public License for more details.
15 //
16 // You should have received a copy of the GNU General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
20 package org.pqt.autorib.rib;
21
22 import java.util.*;
23 import java.io.*;
24
25 import org.pqt.autorib.tokenizer.*;
26 import org.pqt.autorib.globals.*;
27 import org.pqt.autorib.util.*;
28
29 /** this handles all the primitives that do not have their own
30 * separate class, it handles everything correctly for primitives that obey
31 * the following rules: they are defined by "P" or "Pw" control points, their
32 * parameters may start with a string (such as subdivision mesh) but must
33 * contain no other strings as part of the main arguments (though arrays of
34 * strings are allowed and, of course, the general parameters contain strings
35 * as parameter names). */
36 public class RIBDefaultPrimitive extends RIBPrimitive {
37
38 /** used for the initial string parameter if there is one*/
39 private String type = null;
40
41 /** true if this primitive has an initial string parameter*/
42 private boolean hasInitialStringParam = false;
43
44 /** used for other parameters other than the general parameters*/
45 private Vector content;
46
47
48 RIBDefaultPrimitive() {
49 super();
50 }
51
52 /** Usual constructor
53 *@param in the stream to read from
54 *@param hasInitialStringParam true if the first parameter of this primitive
55 *should be a string*/
56 RIBDefaultPrimitive(Tokenizer in, boolean hasInitialStringParam)
57 throws FormatException, IOException {
58 this();
59 this.hasInitialStringParam = hasInitialStringParam;
60 read(in);
61 }
62
63 RIBDefaultPrimitive(Tokenizer in)
64 throws FormatException, IOException {
65 this(in, false);
66 }
67
68 /** Write the contents of the RIBCall to a stream
69 * @param out the RIBWReader to write to */
70 public void write(Writer out) throws IOException {
71 Token.write(out, requestName + ' ');
72 if (type != null)
73 Token.write(out,"\"" + type + "\" ");
74 Enumeration i = content.elements();
75 while(i.hasMoreElements())
76 ((Token)i.nextElement()).write(out);
77 params.write(out);
78 if (RIBGlobals.DEBUGBOUNDINGBOX) {
79 Token.writeln(out);
80 Token.writeln(out,"Opacity [0.5 0.5 0.5]");
81 bounds = calculateLocalPPwBounds(params);
82 Point points[] = bounds.getBoundsAsPoints();
83 RIBPointsPolygonsSubdiv box = new RIBPointsPolygonsSubdiv(points[0], points[1]);
84 box.debugWrite(out);
85 }
86 }
87
88 public void writeOther(java.io.Writer out) throws java.io.IOException { }
89
90 /** read an RIB call and store it
91 * @param in a RIBWReader object linked to the input file*/
92 public void read(Tokenizer in) throws IOException, FormatException {
93 content = new Vector(5);
94 boolean doneAllButParams = false;
95 boolean doneAll = false;
96 int t;
97 readRequestName(in);
98 //first read in the string parameter for those that have
99 //an initial string parameter - if we don't do this
100 //it confuses things later
101 /*if ((requestID == RIBGlobals.PATCH) ||
102 (requestID == RIBGlobals.PATCHMESH) ||
103 (requestID == RIBGlobals.SUBDIVISIONMESH) ||
104 (requestID == RIBGlobals.CURVES))*/
105 if (hasInitialStringParam)
106 type = in.getString();
107 //now we read in everything leading up to the parameters
108 //the start of the parameters is recognized by a string
109 while (!doneAll && !doneAllButParams) {
110 t = in.getToken();
111 if ((t == Token.EOF) ||
112 (t == Token.REQUEST) ||
113 (t == Token.CLOSEBRACE)) {
114 //we've reached the end of this request
115 doneAll = true;
116 in.pushBack();
117 }
118 else if (t == Token.STRING) {
119 //we've hit the start of the parameter list
120 doneAllButParams = true;
121 in.pushBack();
122 }
123 else
124 content.addElement(in.token);
125 }
126 if (!doneAll)
127 params.read(in);
128 }
129
130 public Bounds3D getLocalBounds() {
131 if (bounds == null)
132 bounds = calculateLocalPPwBounds(params);
133 return bounds;
134 }
135
136 }
137
138
139