1 /*
2 * Copyright (c) 2011, 2015, 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.util.Utils;
29 import com.sun.javafx.css.Size;
30 import com.sun.javafx.css.StyleConverterImpl;
31 import javafx.css.CssMetaData;
32 import javafx.css.ParsedValue;
33 import javafx.css.StyleConverter;
34 import javafx.css.Styleable;
35 import javafx.scene.text.Font;
36 import javafx.scene.text.FontPosture;
37 import javafx.scene.text.FontWeight;
38
39 import java.util.Locale;
40 import java.util.Map;
41 import java.util.Map.Entry;
42
43 public final class FontConverter extends StyleConverterImpl<ParsedValue[], Font> {
44
45 // lazy, thread-safe instatiation
46 private static class Holder {
47 static final FontConverter INSTANCE = new FontConverter();
48 }
49
50 public static StyleConverter<ParsedValue[], Font> getInstance() {
51 return Holder.INSTANCE;
52 }
53
54 private FontConverter() {
55 super();
56 }
57
58 @Override
59 public Font convert(ParsedValue<ParsedValue[], Font> value, Font font) {
60 ParsedValue[] values = value.getValue();
61 Font aFont = (font != null) ? font : Font.getDefault();
62 String family = (values[0] != null) ? Utils.stripQuotes((String) values[0].convert(aFont)) : aFont.getFamily();
63 // if font size is given in terms of percent, then we have to call
64 // pixels directly in order to pass the multiplier.
65 double fsize = aFont.getSize();
66 if (values[1] != null) {
67 ParsedValue<?, ?> pv = (ParsedValue<?, ?>) values[1].getValue();
68 Size size = (Size) pv.convert(aFont);
69 fsize = size.pixels(aFont.getSize(), aFont);
70 }
71 FontWeight weight = (values[2] != null) ? (FontWeight) values[2].convert(aFont) : FontWeight.NORMAL;
72 FontPosture style = (values[3] != null) ? (FontPosture) values[3].convert(aFont) : FontPosture.REGULAR;
73 Font f = Font.font(family, weight, style, fsize);
74 return f;
75 }
76
77 @Override
78 public Font convert(Map<CssMetaData<? extends Styleable, ?>, Object> convertedValues) {
79 Font font = Font.getDefault();
80 double size = font.getSize();
81 String family = font.getFamily();
82 FontWeight weight = FontWeight.NORMAL;
83 FontPosture style = FontPosture.REGULAR;
84
85 for (Entry<CssMetaData<? extends Styleable, ?>, Object> entry : convertedValues.entrySet()) {
86
87 Object value = entry.getValue();
88 if (value == null) {
89 continue;
90 }
91 final String prop = entry.getKey().getProperty();
92 if (prop.endsWith("font-size")) {
93 size = ((Number) value).doubleValue();
94 } else if (prop.endsWith("font-family")) {
95 family = Utils.stripQuotes((String) value);
96 } else if (prop.endsWith("font-weight")) {
97 weight = (FontWeight) value;
98 } else if (prop.endsWith("font-style")) {
99 style = (FontPosture) value;
100 }
101 }
102 final Font f = Font.font(family, weight, style, size);
103 return f;
104 }
105
106 @Override
107 public String toString() {
108 return "FontConverter";
109 }
110
111 public static final class FontStyleConverter extends StyleConverterImpl<String, FontPosture> {
112
113 // lazy, thread-safe instatiation
114 private static class Holder {
115 static final FontStyleConverter INSTANCE = new FontStyleConverter();
116 }
117
118 public static FontStyleConverter getInstance() {
119 return Holder.INSTANCE;
120 }
121
122 private FontStyleConverter() {
123 super();
124 }
125
126 @Override
127 public FontPosture convert(ParsedValue<String, FontPosture> value, Font font) {
128
129 // Testing for RT-31022 exposed a ClassCastException where value
130 // wraps a String (e.g., "ITALIC", not a FontUnits.Style).
131 final Object val = value.getValue();
132
133 FontPosture style = null;
134
135 if (val instanceof String) {
136 try {
137 String sval = ((String)val).toUpperCase(Locale.ROOT);
138 style = Enum.valueOf(FontPosture.class, sval);
139 } catch (IllegalArgumentException iae) {
140 style = FontPosture.REGULAR;
141 } catch (NullPointerException npe) {
142 style = FontPosture.REGULAR;
143 }
144
145 } else if (val instanceof FontPosture) {
146 style = (FontPosture)val;
147 }
148 return style;
149 }
150
151 @Override
152 public String toString() {
153 return "FontConverter.StyleConverter";
154 }
155 }
156
157 public static final class FontWeightConverter extends StyleConverterImpl<String, FontWeight> {
158
159 // lazy, thread-safe instatiation
160 private static class Holder {
161 static final FontWeightConverter INSTANCE = new FontWeightConverter();
162 }
163
164 public static FontWeightConverter getInstance() {
165 return Holder.INSTANCE;
166 }
167
168 private FontWeightConverter() {
169 super();
170 }
171
172 @Override
173 public FontWeight convert(ParsedValue<String, FontWeight> value, Font font) {
174
175 // Testing for RT-31022 exposed a ClassCastException where value
176 // wraps a String (e.g., "ITALIC", not a FontUnits.Style).
177 final Object val = value.getValue();
178
179 FontWeight weight = null;
180
181 if (val instanceof String) {
182 try {
183 String sval = ((String)val).toUpperCase(Locale.ROOT);
184 weight = Enum.valueOf(FontWeight.class, sval);
185 } catch (IllegalArgumentException iae) {
186 weight = FontWeight.NORMAL;
187 } catch (NullPointerException npe) {
188 weight = FontWeight.NORMAL;
189 }
190
191 } else if (val instanceof FontWeight) {
192 weight = (FontWeight)val;
193 }
194
195 return weight;
196 }
197
198 @Override
199 public String toString() {
200 return "FontConverter.WeightConverter";
201 }
202 }
203
204 public static final class FontSizeConverter extends StyleConverterImpl<ParsedValue<?, Size>, Number> {
205
206 // lazy, thread-safe instatiation
207 private static class Holder {
208 static final FontSizeConverter INSTANCE = new FontSizeConverter();
209 }
210
211 public static FontSizeConverter getInstance() {
212 return Holder.INSTANCE;
213 }
214
215 private FontSizeConverter() {
216 super();
217 }
218
219 @Override
220 public Number convert(ParsedValue<ParsedValue<?, Size>, Number> value, Font font) {
221 final ParsedValue<?, Size> size = value.getValue();
222 return size.convert(font).pixels(font.getSize(), font);
223 }
224
225 @Override
226 public String toString() {
227 return "FontConverter.FontSizeConverter";
228 }
229 }
230
231 }