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27 package org.htmlparser.lexerapplications.thumbelina;
28
29 import java.awt.Rectangle  ;
30 import java.util.Enumeration ;
31 import java.util.Vector ;
32
33
36 public class TileSet
37
45 {
46
49 protected Vector mRegions;
50
51
54 public TileSet ()
55 {
56 mRegions = new Vector ();
57 }
58
59
65 public int getSize ()
66 {
67 return (mRegions.size ());
68 }
69
70
74 public Enumeration getPictures ()
75 {
76 return (mRegions.elements ());
77 }
78
79
83 public void add (final Picture r)
84 {
85 Vector regions; Enumeration e;
87 Picture rover;
88 Rectangle intersection;
89 Vector splits;
90 Enumeration frags;
91
92 regions = new Vector ();
93 for (e = getPictures (); e.hasMoreElements (); )
94 {
95 rover = (Picture)e.nextElement ();
96 if (rover.intersects (r))
97 {
98 intersection = rover.intersection (r);
99 if (!intersection.equals (rover))
100 {
101 splits = split (r, rover, false);
104 for (frags = splits.elements (); frags.hasMoreElements (); )
105 regions.addElement (frags.nextElement ());
106 }
107 else
108 rover.setImage (null);
111 }
112 else
113 regions.addElement (rover);
115 }
116 regions.addElement (r);
117 mRegions = regions;
118 }
119
120
131 private Vector split (
132 final Picture small,
133 final Picture large,
134 final boolean keep)
135 {
136 Picture m;
137 Vector ret;
138
139 ret = new Vector ();
140
141 if (large.intersects (small))
142 {
143 Rectangle intersection = large.intersection (small);
144
145 if ((intersection.y + intersection.height)
147 != (large.y + large.height))
148 {
149 m = new Picture (large);
150 m.y = (intersection.y + intersection.height);
151 m.height = (large.y + large.height) - m.y;
152 ret.addElement (m);
153 }
154
155 if (intersection.x != large.x)
157 {
158 m = new Picture (large);
159 m.y = intersection.y;
160 m.width = intersection.x - large.x;
161 m.height = intersection.height;
162 ret.addElement (m);
163 }
164
165 if (keep)
167 {
168 m = new Picture (large);
169 m.x = intersection.x;
170 m.y = intersection.y;
171 m.width = intersection.width;
172 m.height = intersection.height;
173 ret.addElement (m);
174 }
175
176 if ((intersection.x + intersection.width)
178 != (large.x + large.width))
179 {
180 m = new Picture (large);
181 m.x = intersection.x + intersection.width;
182 m.y = intersection.y;
183 m.width = (large.x + large.width) - m.x;
184 m.height = intersection.height;
185 ret.addElement (m);
186 }
187
188 if (intersection.y != large.y)
190 {
191 m = new Picture (large);
192 m.height = (intersection.y - large.y);
193 ret.addElement (m);
194 }
195 }
196
197 return (ret);
198 }
199
200
207 public Picture pictureAt (final int x, final int y)
208 {
209 Picture m;
210 Picture ret;
211
212 ret = null;
213
214 for (int i = 0; (null == ret) && (i < mRegions.size ()); i++)
215 {
216 m = (Picture)mRegions.elementAt (i);
217 if (m.contains (x, y))
218 ret = m;
219 }
220
221 return (ret);
222 }
223
224
228 public void bringToTop (final Picture picture)
229 {
230 Picture m;
231 Picture ret;
232
233 ret = null;
234
235 for (int i = 0; (null == ret) && (i < mRegions.size ()); )
236 {
237 m = (Picture)mRegions.elementAt (i);
238 if (picture.same (m))
239 mRegions.removeElementAt (i);
240 else
241 i++;
242 }
243 add (picture);
244
245 }
246
247 }
537
538
554 |
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