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 javafx.css.converter;
27
28 import com.sun.javafx.util.Utils;
29 import javafx.css.Size;
30 import javafx.css.CssMetaData;
31 import javafx.css.ParsedValue;
32 import javafx.css.StyleConverter;
33 import javafx.css.Styleable;
34 import javafx.scene.text.Font;
35 import javafx.scene.text.FontPosture;
36 import javafx.scene.text.FontWeight;
37
38 import java.util.Locale;
39 import java.util.Map;
40 import java.util.Map.Entry;
41
42 /**
43 * @since 9
44 */
45 public final class FontConverter extends StyleConverter<ParsedValue[], Font> {
46
47 // lazy, thread-safe instatiation
48 private static class Holder {
49 static final FontConverter INSTANCE = new FontConverter();
50 }
51
52 public static StyleConverter<ParsedValue[], Font> getInstance() {
53 return Holder.INSTANCE;
54 }
55
56 private FontConverter() {
57 super();
58 }
59
60 @Override
61 public Font convert(ParsedValue<ParsedValue[], Font> value, Font font) {
62 ParsedValue[] values = value.getValue();
63 Font aFont = (font != null) ? font : Font.getDefault();
64 String family = (values[0] != null) ? Utils.stripQuotes((String) values[0].convert(aFont)) : aFont.getFamily();
65 // if font size is given in terms of percent, then we have to call
66 // pixels directly in order to pass the multiplier.
67 double fsize = aFont.getSize();
68 if (values[1] != null) {
69 ParsedValue<?, ?> pv = (ParsedValue<?, ?>) values[1].getValue();
70 Size size = (Size) pv.convert(aFont);
71 fsize = size.pixels(aFont.getSize(), aFont);
72 }
73 FontWeight weight = (values[2] != null) ? (FontWeight) values[2].convert(aFont) : FontWeight.NORMAL;
74 FontPosture style = (values[3] != null) ? (FontPosture) values[3].convert(aFont) : FontPosture.REGULAR;
75 Font f = Font.font(family, weight, style, fsize);
76 return f;
77 }
78
79 @Override
80 public Font convert(Map<CssMetaData<? extends Styleable, ?>, Object> convertedValues) {
81 Font font = Font.getDefault();
82 double size = font.getSize();
83 String family = font.getFamily();
84 FontWeight weight = FontWeight.NORMAL;
85 FontPosture style = FontPosture.REGULAR;
86
87 for (Entry<CssMetaData<? extends Styleable, ?>, Object> entry : convertedValues.entrySet()) {
88
89 Object value = entry.getValue();
90 if (value == null) {
91 continue;
92 }
93 final String prop = entry.getKey().getProperty();
94 if (prop.endsWith("font-size")) {
95 size = ((Number) value).doubleValue();
96 } else if (prop.endsWith("font-family")) {
97 family = Utils.stripQuotes((String) value);
98 } else if (prop.endsWith("font-weight")) {
99 weight = (FontWeight) value;
100 } else if (prop.endsWith("font-style")) {
101 style = (FontPosture) value;
102 }
103 }
104 final Font f = Font.font(family, weight, style, size);
105 return f;
106 }
107
108 @Override
109 public String toString() {
110 return "FontConverter";
111 }
112
113 public static final class FontStyleConverter extends StyleConverter<String, FontPosture> {
114
115 // lazy, thread-safe instatiation
116 private static class Holder {
117 static final FontStyleConverter INSTANCE = new FontStyleConverter();
118 }
119
120 public static FontStyleConverter getInstance() {
121 return Holder.INSTANCE;
122 }
123
124 private FontStyleConverter() {
125 super();
126 }
127
128 @Override
129 public FontPosture convert(ParsedValue<String, FontPosture> value, Font font) {
130
131 // Testing for RT-31022 exposed a ClassCastException where value
132 // wraps a String (e.g., "ITALIC", not a FontUnits.Style).
133 final Object val = value.getValue();
134
135 FontPosture style = null;
136
137 if (val instanceof String) {
138 try {
139 String sval = ((String)val).toUpperCase(Locale.ROOT);
140 style = Enum.valueOf(FontPosture.class, sval);
141 } catch (IllegalArgumentException iae) {
142 style = FontPosture.REGULAR;
143 } catch (NullPointerException npe) {
144 style = FontPosture.REGULAR;
145 }
146
147 } else if (val instanceof FontPosture) {
148 style = (FontPosture)val;
149 }
150 return style;
151 }
152
153 @Override
154 public String toString() {
155 return "FontConverter.StyleConverter";
156 }
157 }
158
159 public static final class FontWeightConverter extends StyleConverter<String, FontWeight> {
160
161 // lazy, thread-safe instatiation
162 private static class Holder {
163 static final FontWeightConverter INSTANCE = new FontWeightConverter();
164 }
165
166 public static FontWeightConverter getInstance() {
167 return Holder.INSTANCE;
168 }
169
170 private FontWeightConverter() {
171 super();
172 }
173
174 @Override
175 public FontWeight convert(ParsedValue<String, FontWeight> value, Font font) {
176
177 // Testing for RT-31022 exposed a ClassCastException where value
178 // wraps a String (e.g., "ITALIC", not a FontUnits.Style).
179 final Object val = value.getValue();
180
181 FontWeight weight = null;
182
183 if (val instanceof String) {
184 try {
185 String sval = ((String)val).toUpperCase(Locale.ROOT);
186 weight = Enum.valueOf(FontWeight.class, sval);
187 } catch (IllegalArgumentException iae) {
188 weight = FontWeight.NORMAL;
189 } catch (NullPointerException npe) {
190 weight = FontWeight.NORMAL;
191 }
192
193 } else if (val instanceof FontWeight) {
194 weight = (FontWeight)val;
195 }
196
197 return weight;
198 }
199
200 @Override
201 public String toString() {
202 return "FontConverter.WeightConverter";
203 }
204 }
205
206 public static final class FontSizeConverter extends StyleConverter<ParsedValue<?, Size>, Number> {
207
208 // lazy, thread-safe instatiation
209 private static class Holder {
210 static final FontSizeConverter INSTANCE = new FontSizeConverter();
211 }
212
213 public static FontSizeConverter getInstance() {
214 return Holder.INSTANCE;
215 }
216
217 private FontSizeConverter() {
218 super();
219 }
220
221 @Override
222 public Number convert(ParsedValue<ParsedValue<?, Size>, Number> value, Font font) {
223 final ParsedValue<?, Size> size = value.getValue();
224 return size.convert(font).pixels(font.getSize(), font);
225 }
226
227 @Override
228 public String toString() {
229 return "FontConverter.FontSizeConverter";
230 }
231 }
232
233 }