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 javafx.css.converter;
27
28 import javafx.css.Size;
29 import javafx.css.ParsedValue;
30 import javafx.css.StyleConverter;
31 import javafx.scene.effect.BlurType;
32 import javafx.scene.effect.DropShadow;
33 import javafx.scene.effect.Effect;
34 import javafx.scene.effect.InnerShadow;
35 import javafx.scene.paint.Color;
36 import javafx.scene.text.Font;
37
38 import java.util.Map;
39
40 /**
41 * @since 9
42 */
43 public class EffectConverter extends StyleConverter<ParsedValue[], Effect> {
44
45 // lazy, thread-safe instatiation
46 private static class Holder {
47 static final EffectConverter EFFECT_CONVERTER =
48 new EffectConverter();
49 static final DropShadowConverter DROP_SHADOW_INSTANCE =
50 new DropShadowConverter();
51 static final InnerShadowConverter INNER_SHADOW_INSTANCE =
52 new InnerShadowConverter();
53 }
54
55 public static StyleConverter<ParsedValue[], Effect> getInstance() {
56 return Holder.EFFECT_CONVERTER;
57 }
58
59 @Override
60 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
61 throw new IllegalArgumentException("Parsed value is not an Effect");
62 }
63
64 protected EffectConverter() {
65 super();
66 }
67
68 @Override
69 public String toString() {
70 return "EffectConverter";
71 }
72
73 public static final class DropShadowConverter extends EffectConverter {
74
75 public static DropShadowConverter getInstance() {
76 return Holder.DROP_SHADOW_INSTANCE;
77 }
78
79 private DropShadowConverter() {
80 super();
81 }
82
83 // dropshadow( <blur-type> , <color> , <number> , <number> , <number> , <number> )
84 // <blur-type> = [ gaussian | one-pass-box | three-pass-box | two-pass-box ]
85 // <color> The shadow Color.
86 // <number> The radius of the shadow blur kernel. In the range
87 // [0.0 ... 127.0], typical value 10.
88 // <number> he spread of the shadow. The spread is the portion of
89 // the radius where the contribution of the source material
90 // will be 100%. The remaining portion of the radius will
91 // have a contribution controlled by the blur kernel. A
92 // spread of 0.0 will result in a distribution of the shadow
93 // determined entirely by the blur algorithm. A spread of
94 // 1.0 will result in a solid growth outward of the source
95 // material opacity to the limit of the radius with a very
96 // sharp cutoff to transparency at the radius. In the range
97 // [0.0 ... 1.0] a value of 0.0 is no spread.
98 // <number> The shadow offset in the x direction, in pixels.
99 // <number> The shadow offset in the y direction, in pixels.
100 @Override
101 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
102
103 Effect effect = super.getCachedValue(value);
104 if (effect != null) return effect;
105
106 final ParsedValue[] values = value.getValue();
107 final BlurType blurType = (BlurType) values[0].convert(font);
108 final Color color = (Color) values[1].convert(font);
109 final Double radius = ((Size) values[2].convert(font)).pixels(font);
110 final Double spread = ((Size) values[3].convert(font)).pixels(font);
111 final Double offsetX = ((Size) values[4].convert(font)).pixels(font);
112 final Double offsetY = ((Size) values[5].convert(font)).pixels(font);
113 DropShadow dropShadow = new DropShadow();
114 if (blurType != null) {
115 dropShadow.setBlurType(blurType);
116 }
117 if (color != null) {
118 dropShadow.setColor(color);
119 }
120 if (spread != null) {
121 dropShadow.setSpread(spread);
122 }
123 if (radius != null) {
124 dropShadow.setRadius(radius);
125 }
126 if (offsetX != null) {
127 dropShadow.setOffsetX(offsetX);
128 }
129 if (offsetY != null) {
130 dropShadow.setOffsetY(offsetY);
131 }
132
133 super.cacheValue(value, dropShadow);
134
135 return dropShadow;
136 }
137
138 @Override
139 public String toString() {
140 return "DropShadowConverter";
141 }
142 }
143
144 public static final class InnerShadowConverter extends EffectConverter {
145
146 public static InnerShadowConverter getInstance() {
147 return Holder.INNER_SHADOW_INSTANCE;
148 }
149
150 private InnerShadowConverter() {
151 super();
152 }
153
154 // innershadow( <blur-type> , <color> , <number> , <number> , <number> , <number> )
155 // <blur-type> = [ gaussian | one-pass-box | three-pass-box | two-pass-box ]
156 // <color> The shadow Color.
157 // <number> The radius of the shadow blur kernel. In the range
158 // [0.0 ... 127.0], typical value 10.
159 // <number> The choke of the shadow. The choke is the portion of the
160 // radius where the contribution of the source material will
161 // be 100%. The remaining portion of the radius will have a
162 // contribution controlled by the blur kernel. A choke of 0.0
163 // will result in a distribution of the shadow determined
164 // entirely by the blur algorithm. A choke of 1.0 will result
165 // in a solid growth inward of the shadow from the edges to
166 // the limit of the radius with a very sharp cutoff to
167 // transparency inside the radius. In the range [0.0 ... 1.0]
168 // a value of 0.0 is no spread.
169 // <number> The shadow offset in the x direction, in pixels.
170 // <number> The shadow offset in the y direction, in pixels.
171 @Override
172 public Effect convert(ParsedValue<ParsedValue[], Effect> value, Font font) {
173
174 Effect effect = super.getCachedValue(value);
175 if (effect != null) return effect;
176
177 final ParsedValue[] values = value.getValue();
178 final BlurType blurType = (BlurType) values[0].convert(font);
179 final Color color = (Color) values[1].convert(font);
180 final Double radius = ((Size) values[2].convert(font)).pixels(font);
181 final Double choke = ((Size) values[3].convert(font)).pixels(font);
182 final Double offsetX = ((Size) values[4].convert(font)).pixels(font);
183 final Double offsetY = ((Size) values[5].convert(font)).pixels(font);
184 InnerShadow innerShadow = new InnerShadow();
185 if (blurType != null) {
186 innerShadow.setBlurType(blurType);
187 }
188 if (color != null) {
189 innerShadow.setColor(color);
190 }
191 if (radius != null) {
192 innerShadow.setRadius(radius);
193 }
194 if (choke != null) {
195 innerShadow.setChoke(choke);
196 }
197 if (offsetX != null) {
198 innerShadow.setOffsetX(offsetX);
199 }
200 if (offsetY != null) {
201 innerShadow.setOffsetY(offsetY);
202 }
203
204 super.cacheValue(value, innerShadow);
205
206 return innerShadow;
207 }
208
209 @Override
210 public String toString() {
211 return "InnerShadowConverter";
212 }
213 }
214
215 private static Map<ParsedValue<ParsedValue[], Effect>, Effect> cache;
216
217 public static void clearCache() { if (cache != null) cache.clear(); }
218
219 }
220