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25 package jsp2_1.examples.elresolver;
26
27 import java.io.BufferedReader  ;
28 import java.io.IOException ;
29 import java.io.InputStream ;
30 import java.io.InputStreamReader ;
31 import java.util.HashMap ;
32 import java.util.Iterator ;
33 import java.util.StringTokenizer ;
34
35
40 public class ColorImplicitObject {
41
42
43 private static HashMap colorNames = null;
44
45
48 public static ColorRGB fromHex(String hex) {
49 return fromColor(java.awt.Color.decode(hex));
50 }
51
52
55 public static ColorRGB fromColor(java.awt.Color color) {
56 return new ColorRGB(color.getRed(), color.getGreen(), color.getBlue());
57 }
58
59
63 public static ColorRGB fromName(String name) {
64 if(colorNames == null) {
65 loadColorNames();
66 }
67 return (ColorRGB)colorNames.get(name);
68 }
69
70 public String toString() {
71 return "Color Implicit Object";
72 }
73
74
77 static Iterator colorNameIterator() {
78 if(colorNames == null) {
79 loadColorNames();
80 }
81 return colorNames.keySet().iterator();
82 }
83
84
88 private synchronized static void loadColorNames() {
89 if(colorNames == null) {
90 colorNames = new HashMap ();
91 try {
92 BufferedReader in = new BufferedReader (new InputStreamReader (
93 ColorImplicitObject.class.getResourceAsStream(
94 "/jsp2_1/examples/elresolver/rgb.txt")));
95 String line;
96 while((line = in.readLine()) != null) {
97 if(!line.startsWith("!")) {
98 String colorText = line.substring(0, 12);
99 String colorName = line.substring(12).trim();
100 StringTokenizer st = new StringTokenizer (
101 colorText, " ");
102 int red = Integer.parseInt(st.nextToken().trim());
103 int green = Integer.parseInt(st.nextToken().trim());
104 int blue = Integer.parseInt(st.nextToken().trim());
105 colorNames.put(colorName, new ColorRGB(red, green,
106 blue));
107 }
108 }
109 in.close();
110 }
111 catch(IOException e) {
112 throw new RuntimeException ("Could not load rgb.txt", e);
113 }
114 }
115 }
116
117
121 public static class ColorR {
122 private int red;
123 public ColorR(int red) {
124 if(red < 0) red = 0;
126 if(red > 255) red = 255;
127 this.red = red;
128 }
129 public int getRed() {
130 return red;
131 }
132 public void setRed(int r) {
133 red = r;
134 }
135 public String toString() {
136 return "Color(" + red + ", ?, ?)";
137 }
138 }
139
140
144 public static class ColorRG
145 extends ColorR
146 {
147 private int green;
148 public ColorRG(int red, int green) {
149 super(red);
150 if(green < 0) green = 0;
152 if(green > 255) green = 255;
153 this.green = green;
154 }
155 public int getGreen() {
156 return green;
157 }
158 public void setGreen(int g) {
159 green = g;
160 }
161 public String toString() {
162 return "Color(" + getRed() + ", " + green + ", ?)";
163 }
164 }
165
166 public static class ColorRGB
167 extends ColorRG
168 {
169 private int blue;
170 public ColorRGB(int red, int green, int blue) {
171 super(red, green);
172 if(blue < 0) blue = 0;
174 if(blue > 255) blue = 255;
175 this.blue = blue;
176 }
177 public int getBlue() {
178 return blue;
179 }
180 public void setBlue(int b) {
181 blue = blue;
182 }
183 public java.awt.Color getColor() {
184 return new java.awt.Color (getRed(), getGreen(), getBlue());
185 }
186
187 public ColorRGB getDarker() {
188 java.awt.Color darkerColor = getColor().darker();
189 return fromColor(darkerColor);
190 }
191
192 public ColorRGB getBrighter() {
193 java.awt.Color brighterColor = getColor().brighter();
194 return fromColor(brighterColor);
195 }
196
197 public String getHex() {
198 return "#" + toHex(getRed()) + toHex(getGreen()) +
199 toHex(getBlue());
200 }
201
202 private String toHex(int i) {
203 String result;
204 if(i < 16) {
205 result = "0" + Integer.toHexString(i);
206 }
207 else {
208 result = Integer.toHexString(i);
209 }
210 return result;
211 }
212
213 public String toString() {
214 return "Color(" + getRed() + ", " + getGreen() + ", " + blue + ")";
215 }
216 }
217 }
218 |
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