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1 package JSci.mathml;
2
3 import org.w3c.dom.*;
4 import org.w3c.dom.mathml.*;
5
6
11 public class MathMLPresentationContainerImpl extends MathMLElementImpl implements MathMLPresentationContainer {
12
15 public MathMLPresentationContainerImpl(MathMLDocumentImpl owner, String  qualifiedName) {
16 super (owner, qualifiedName);
17 }
18
19 public int getNArguments() {
20 return getArgumentsGetLength();
21 }
22 public MathMLNodeList getArguments() {
23 return new MathMLNodeList() {
24 public int getLength() {
25 return getArgumentsGetLength();
26 }
27 public Node item(int index) {
28 return getArgumentsItem(index);
29 }
30 };
31 }
32 public MathMLNodeList getDeclarations() {
33 return new MathMLNodeList() {
34 public int getLength() {
35 return getDeclarationsGetLength();
36 }
37 public Node item(int index) {
38 return getDeclarationsItem(index);
39 }
40 };
41 }
42
43 public MathMLElement getArgument(int index) throws DOMException {
44 Node arg = getArgumentsItem(index-1);
45 if (arg == null) {
46 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
47 }
48 return (MathMLElement) arg;
49 }
50 public MathMLElement setArgument(MathMLElement newArgument, int index) throws DOMException {
51 final int argsLength = getArgumentsGetLength();
52
53 if ((index < 1) || (index > argsLength+1)) {
54 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
55 }
56 if (index == argsLength+1) {
57 return (MathMLElement) appendChild(newArgument);
58 } else {
59 return (MathMLElement) replaceChild(newArgument, getArgumentsItem(index-1));
60 }
61 }
62 public MathMLElement insertArgument(MathMLElement newArgument, int index) throws DOMException {
63 final int argsLength = getArgumentsGetLength();
64
65 if ((index < 0) || (index > argsLength+1)) {
66 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
67 }
68 if ((index == 0) || (index == argsLength+1)) {
69 return (MathMLElement) appendChild(newArgument);
70 } else {
71 return (MathMLElement) insertBefore(newArgument, getArgumentsItem(index-1));
72 }
73 }
74 public MathMLElement removeArgument(int index) throws DOMException {
75 Node arg = getArgumentsItem(index-1);
76 if (arg == null) {
77 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
78 }
79 return (MathMLElement) removeChild(arg);
80 }
81 public void deleteArgument(int index) throws DOMException {
82 removeArgument(index);
83 }
84
85 public MathMLDeclareElement getDeclaration(int index) throws DOMException {
86 Node decl = getDeclarationsItem(index-1);
87 if (decl == null) {
88 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
89 }
90 return (MathMLDeclareElement) decl;
91 }
92 public MathMLDeclareElement setDeclaration(MathMLDeclareElement newDeclaration, int index) throws DOMException {
93 final int declsLength = getDeclarationsGetLength();
94
95 if ((index < 1) || (index > declsLength+1)) {
96 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
97 }
98 if (index == declsLength+1) {
99 return (MathMLDeclareElement) appendChild(newDeclaration);
100 } else {
101 return (MathMLDeclareElement) replaceChild(newDeclaration, getDeclarationsItem(index-1));
102 }
103 }
104 public MathMLDeclareElement insertDeclaration(MathMLDeclareElement newDeclaration, int index) throws DOMException {
105 final int declsLength = getDeclarationsGetLength();
106
107 if ((index < 0) || (index > declsLength+1)) {
108 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
109 }
110 if ((index == 0) || (index == declsLength+1)) {
111 return (MathMLDeclareElement) appendChild(newDeclaration);
112 } else {
113 return (MathMLDeclareElement) insertBefore(newDeclaration, getDeclarationsItem(index-1));
114 }
115 }
116 public MathMLDeclareElement removeDeclaration(int index) throws DOMException {
117 Node decl = getDeclarationsItem(index-1);
118 if (decl == null) {
119 throw new DOMException(DOMException.INDEX_SIZE_ERR, "Index out of bounds");
120 }
121 return (MathMLDeclareElement) removeChild(decl);
122 }
123 public void deleteDeclaration(int index) throws DOMException {
124 removeDeclaration(index);
125 }
126
127 private int getArgumentsGetLength() {
128 final int length = getLength();
129 int numArgs = 0;
130
131 for (int i = 0; i < length; i++) {
132 if (!(item(i) instanceof MathMLDeclareElement)) {
133 numArgs++;
134 }
135 }
136 return numArgs;
137 }
138 private Node getArgumentsItem(int index) {
139 final int argsLength = getArgumentsGetLength();
140
141 if ((index < 0) || (index >= argsLength))
142 return null;
143
144 Node node = null;
145 int n = -1;
146 for (int i = 0; n < index; i++) {
147 node = item(i);
148 if (!(node instanceof MathMLDeclareElement)) {
149 n++;
150 }
151 }
152 return node;
153 }
154
155 private int getDeclarationsGetLength() {
156 final int length = getLength();
157 int numDecls = 0;
158
159 for (int i = 0; i < length; i++) {
160 if (item(i) instanceof MathMLDeclareElement) {
161 numDecls++;
162 }
163 }
164 return numDecls;
165 }
166 private Node getDeclarationsItem(int index) {
167 final int declLength = getDeclarationsGetLength();
168
169 if ((index < 0) || (index >= declLength))
170 return null;
171
172 Node node = null;
173 int n = -1;
174 for (int i = 0; n < index; i++) {
175 node = item(i);
176 if (node instanceof MathMLDeclareElement) {
177 n++;
178 }
179 }
180 return node;
181 }
182 }
183
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