1 /*
2 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.javafx.css.converters;
27
28 import com.sun.javafx.css.Size;
29 import com.sun.javafx.css.StyleConverterImpl;
30 import javafx.css.ParsedValue;
31 import javafx.css.StyleConverter;
32 import javafx.scene.effect.BlurType;
33 import javafx.scene.effect.DropShadow;
34 import javafx.scene.effect.Effect;
35 import javafx.scene.effect.InnerShadow;
36 import javafx.scene.paint.Color;
37 import javafx.scene.text.Font;
38
39 import java.util.Map;
40
41 public class EffectConverter extends StyleConverterImpl<ParsedValue[], Effect> {
42
43 // lazy, thread-safe instatiation
44 private static class Holder {
45 static final EffectConverter EFFECT_CONVERTER =
46 new EffectConverter();
47 static final DropShadowConverter DROP_SHADOW_INSTANCE =
48 new DropShadowConverter();
49 static final InnerShadowConverter INNER_SHADOW_INSTANCE =
50 new InnerShadowConverter();
51 }
52
53 public static StyleConverter<ParsedValue[], Effect> getInstance() {
54 return Holder.EFFECT_CONVERTER;
55 }
56
57 @Override
58 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
59 throw new IllegalArgumentException("Parsed value is not an Effect");
60 }
61
62 protected EffectConverter() {
63 super();
64 }
65
66 @Override
67 public String toString() {
68 return "EffectConverter";
69 }
70
71 public static final class DropShadowConverter extends EffectConverter {
72
73 public static DropShadowConverter getInstance() {
74 return Holder.DROP_SHADOW_INSTANCE;
75 }
76
77 private DropShadowConverter() {
78 super();
79 }
80
81 // dropshadow( <blur-type> , <color> , <number> , <number> , <number> , <number> )
82 // <blur-type> = [ gaussian | one-pass-box | three-pass-box | two-pass-box ]
83 // <color> The shadow Color.
84 // <number> The radius of the shadow blur kernel. In the range
85 // [0.0 ... 127.0], typical value 10.
86 // <number> he spread of the shadow. The spread is the portion of
87 // the radius where the contribution of the source material
88 // will be 100%. The remaining portion of the radius will
89 // have a contribution controlled by the blur kernel. A
90 // spread of 0.0 will result in a distribution of the shadow
91 // determined entirely by the blur algorithm. A spread of
92 // 1.0 will result in a solid growth outward of the source
93 // material opacity to the limit of the radius with a very
94 // sharp cutoff to transparency at the radius. In the range
95 // [0.0 ... 1.0] a value of 0.0 is no spread.
96 // <number> The shadow offset in the x direction, in pixels.
97 // <number> The shadow offset in the y direction, in pixels.
98 @Override
99 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
100
101 Effect effect = super.getCachedValue(value);
102 if (effect != null) return effect;
103
104 final ParsedValue[] values = value.getValue();
105 final BlurType blurType = (BlurType) values[0].convert(font);
106 final Color color = (Color) values[1].convert(font);
107 final Double radius = ((Size) values[2].convert(font)).pixels(font);
108 final Double spread = ((Size) values[3].convert(font)).pixels(font);
109 final Double offsetX = ((Size) values[4].convert(font)).pixels(font);
110 final Double offsetY = ((Size) values[5].convert(font)).pixels(font);
111 DropShadow dropShadow = new DropShadow();
112 if (blurType != null) {
113 dropShadow.setBlurType(blurType);
114 }
115 if (color != null) {
116 dropShadow.setColor(color);
117 }
118 if (spread != null) {
119 dropShadow.setSpread(spread);
120 }
121 if (radius != null) {
122 dropShadow.setRadius(radius);
123 }
124 if (offsetX != null) {
125 dropShadow.setOffsetX(offsetX);
126 }
127 if (offsetY != null) {
128 dropShadow.setOffsetY(offsetY);
129 }
130
131 super.cacheValue(value, dropShadow);
132
133 return dropShadow;
134 }
135
136 @Override
137 public String toString() {
138 return "DropShadowConverter";
139 }
140 }
141
142 public static final class InnerShadowConverter extends EffectConverter {
143
144 public static InnerShadowConverter getInstance() {
145 return Holder.INNER_SHADOW_INSTANCE;
146 }
147
148 private InnerShadowConverter() {
149 super();
150 }
151
152 // innershadow( <blur-type> , <color> , <number> , <number> , <number> , <number> )
153 // <blur-type> = [ gaussian | one-pass-box | three-pass-box | two-pass-box ]
154 // <color> The shadow Color.
155 // <number> The radius of the shadow blur kernel. In the range
156 // [0.0 ... 127.0], typical value 10.
157 // <number> The choke of the shadow. The choke is the portion of the
158 // radius where the contribution of the source material will
159 // be 100%. The remaining portion of the radius will have a
160 // contribution controlled by the blur kernel. A choke of 0.0
161 // will result in a distribution of the shadow determined
162 // entirely by the blur algorithm. A choke of 1.0 will result
163 // in a solid growth inward of the shadow from the edges to
164 // the limit of the radius with a very sharp cutoff to
165 // transparency inside the radius. In the range [0.0 ... 1.0]
166 // a value of 0.0 is no spread.
167 // <number> The shadow offset in the x direction, in pixels.
168 // <number> The shadow offset in the y direction, in pixels.
169 @Override
170 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
171
172 Effect effect = super.getCachedValue(value);
173 if (effect != null) return effect;
174
175 final ParsedValue[] values = value.getValue();
176 final BlurType blurType = (BlurType) values[0].convert(font);
177 final Color color = (Color) values[1].convert(font);
178 final Double radius = ((Size) values[2].convert(font)).pixels(font);
179 final Double choke = ((Size) values[3].convert(font)).pixels(font);
180 final Double offsetX = ((Size) values[4].convert(font)).pixels(font);
181 final Double offsetY = ((Size) values[5].convert(font)).pixels(font);
182 InnerShadow innerShadow = new InnerShadow();
183 if (blurType != null) {
184 innerShadow.setBlurType(blurType);
185 }
186 if (color != null) {
187 innerShadow.setColor(color);
188 }
189 if (radius != null) {
190 innerShadow.setRadius(radius);
191 }
192 if (choke != null) {
193 innerShadow.setChoke(choke);
194 }
195 if (offsetX != null) {
196 innerShadow.setOffsetX(offsetX);
197 }
198 if (offsetY != null) {
199 innerShadow.setOffsetY(offsetY);
200 }
201
202 super.cacheValue(value, innerShadow);
203
204 return innerShadow;
205 }
206
207 @Override
208 public String toString() {
209 return "InnerShadowConverter";
210 }
211 }
212
213 private static Map<ParsedValue<ParsedValue[], Effect>, Effect> cache;
214
215 public static void clearCache() { if (cache != null) cache.clear(); }
216
217 }
218