1 /*
2 * Copyright (c) 2012, 2013, 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 test.com.sun.javafx.text;
27
28 import javafx.scene.text.Font;
29
30 import com.sun.javafx.font.PGFont;
31 import com.sun.javafx.geom.RectBounds;
32 import com.sun.javafx.scene.text.GlyphList;
33 import com.sun.javafx.scene.text.TextSpan;
34 import com.sun.javafx.scene.text.TextLine;
35 import com.sun.javafx.text.PrismTextLayout;
36 import com.sun.javafx.text.PrismTextLayout;
37
38 import org.junit.Ignore;
39 import org.junit.Test;
40
41 import sun.font.CharToGlyphMapper;
42 import static org.junit.Assert.*;
43
44 public class TextLayoutTest {
45 private String J = "\u3041"; //Japanese not complex
46 private String D = "\u0907"; //Devanagari complex
47 private String T = "\u0E34"; //Devanagari complex
48
49 class TestSpan implements TextSpan {
50 String text;
51 Object font;
52 TestSpan(Object text, Object font) {
53 this.text = (String)text;
54 this.font = font;
55 }
56 @Override public String getText() {
57 return text;
58 }
59 @Override public Object getFont() {
60 return font;
61 }
62 @Override public RectBounds getBounds() {
63 return null;
64 }
65 }
66
67 public TextLayoutTest() {
68 }
69
70 private void setContent(PrismTextLayout layout, Object... content) {
71 int count = content.length / 2;
72 TextSpan[] spans = new TextSpan[count];
73 int i = 0;
74 while (i < content.length) {
75 spans[i>>1] = new TestSpan(content[i++], content[i++]);
76 }
77 layout.setContent(spans);
78 }
79
80 private void verifyLayout(PrismTextLayout layout, int lineCount, int runCount, int... glyphCount) {
81 TextLine[] lines = layout.getLines();
82 assertEquals("lineCount", lineCount, lines.length);
83 GlyphList[] runs = layout.getRuns();
84 assertEquals("runCount", runCount, runs.length);
85 assertEquals("runCount", runCount, glyphCount.length);
86 for (int i = 0; i < runs.length; i++) {
87 assertEquals("run " +i, glyphCount[i], runs[i].getGlyphCount());
88 }
89 }
90
91 private void verifyComplex(PrismTextLayout layout, boolean... complex) {
92 GlyphList[] runs = layout.getRuns();
93 for (int i = 0; i < runs.length; i++) {
94 assertEquals("run " +i, complex[i], runs[i].isComplex());
95 }
96 }
97
98 @SuppressWarnings("deprecation")
99 @Ignore("RT-31357")
100 @Test public void buildRuns() {
101
102 PrismTextLayout layout = new PrismTextLayout();
103 PGFont font = (PGFont)Font.font("Monaco", 12).impl_getNativeFont();
104 PGFont font2 = (PGFont)Font.font("Tahoma", 12).impl_getNativeFont();
105
106 /* simple case */
107 layout.setContent("hello", font);
108 verifyLayout(layout, 1, 1, 5);
109
110 /* simple case, two workd*/
111 layout.setContent("hello world", font);
112 verifyLayout(layout, 1, 1, 11);
113
114 /* empty string */
115 layout.setContent("", font);
116 verifyLayout(layout, 1, 1, 0);
117
118 /* line break */
119 layout.setContent("\n", font); //first line has the line break (glyphCount=0),
120 verifyLayout(layout, 2, 2, 0,0);
121 layout.setContent("\r", font);
122 verifyLayout(layout, 2, 2, 0,0);
123 layout.setContent("\r\n", font);
124 verifyLayout(layout, 2, 2, 0,0);
125 layout.setContent("a\nb", font);
126 verifyLayout(layout, 2, 3, 1, 0, 1);
127 layout.setContent("\n\n\r\r\n", font);
128 verifyLayout(layout, 5, 5, 0,0,0,0,0);
129
130 /* tabs */
131 layout.setContent("\t", font);
132 verifyLayout(layout, 1, 1, 0);
133 layout.setContent("\t\t", font);
134 verifyLayout(layout, 1, 2, 0,0);
135 layout.setContent("a\tb", font);
136 verifyLayout(layout, 1, 3, 1,0,1);
137
138 /* complex */
139 layout.setContent("aa"+J+J, font);
140 verifyLayout(layout, 1, 1, 4);// no complex (english to japanese)
141 verifyComplex(layout, false);
142
143
144 layout.setContent(D, font);
145 verifyLayout(layout, 1, 1, 1);// complex (english to devanagari)
146 verifyComplex(layout, true);
147
148 layout.setContent("aa"+D+D, font);
149 verifyLayout(layout, 1, 2, 2,2);// complex (english to devanagari)
150 verifyComplex(layout, false, true);
151
152 layout.setContent(D+D+"aa", font);
153 verifyLayout(layout, 1, 2, 2,2);// complex (devanagari to english)
154 verifyComplex(layout, true, false);
155
156 layout.setContent("aa"+D+D+J+J, font);
157 verifyLayout(layout, 1, 3, 2,2,2);// complex (english to devanagari to japanese)
158 verifyComplex(layout, false, true, false);
159
160 /*Tahoma has Thai but no Hindi, font slot break expected*/
161 layout.setContent(D+D+T+T, font2);
162 verifyLayout(layout, 1, 2, 2,2);// complex (devanagari to thai)
163 verifyComplex(layout, true, true);
164
165 layout.setContent(T+T+D+D+T+T, font2);
166 verifyLayout(layout, 1, 3, 2,2,2);
167 verifyComplex(layout, true, true, true);
168
169 layout.setContent(T+T+D+D+"aa", font2);
170 verifyLayout(layout, 1, 3, 2,2,2);
171 verifyComplex(layout, true, true, false);
172
173 layout.setContent(T+T+"aa"+T+T, font2);
174 verifyLayout(layout, 1, 3, 2,2,2);
175 verifyComplex(layout, true, false, true);
176
177 layout.setContent("aa"+D+D+T+T, font2);
178 verifyLayout(layout, 1, 3, 2,2,2);
179 verifyComplex(layout, false, true, true);
180
181 /* Rich Text test */
182
183 setContent(layout, "hello ", font, "world", font);
184 verifyLayout(layout, 1, 2, 6,5);
185 verifyComplex(layout, false, false);
186
187 setContent(layout, "aaa", font, J+J+J, font);
188 verifyLayout(layout, 1, 2, 3,3);
189 verifyComplex(layout, false, false);
190
191 setContent(layout, "aaa", font, D+D+D, font);
192 verifyLayout(layout, 1, 2, 3,3);
193 verifyComplex(layout, false, true);
194
195 /* can't merge \r\n in different spans*/
196 setContent(layout, "aa\r", font, "\nbb", font);
197 verifyLayout(layout, 3, 4, 2,0,0,2);
198 verifyComplex(layout, false, false, false, false);
199
200 setContent(layout, "aa\r\n", font, "bb", font);
201 verifyLayout(layout, 2, 3, 2,0,2);
202 verifyComplex(layout, false, false, false);
203
204 /* can't merge surrogate pairs in different spans*/
205 setContent(layout, "\uD840\uDC0B", font, "\uD840\uDC89\uD840\uDCA2", font);
206 verifyLayout(layout, 1, 2, 2, 4);
207 GlyphList[] runs = layout.getRuns();
208 assertTrue(runs[0].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
209 assertTrue(runs[0].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
210 assertTrue(runs[1].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
211 assertTrue(runs[1].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
212 assertTrue(runs[1].getGlyphCode(2) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
213 assertTrue(runs[1].getGlyphCode(3) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
214
215 /* Split surrogate pair*/
216 setContent(layout, "\uD840\uDC0B\uD840", font, "\uDC89\uD840\uDCA2", font);
217 verifyLayout(layout, 1, 2, 3, 3);
218 runs = layout.getRuns();
219 assertTrue(runs[0].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
220 assertTrue(runs[0].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
221 assertTrue(runs[0].getGlyphCode(2) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);//broken pair, results in missing glyph
222 assertTrue(runs[1].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);//broken pair, results in missing glyph
223 assertTrue(runs[1].getGlyphCode(1) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
224 assertTrue(runs[1].getGlyphCode(2) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
225
226 }
227
228 }