1 /*
2 * Copyright (c) 2012, 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 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.FontHelper;
36 import com.sun.javafx.text.PrismTextLayout;
37 import com.sun.javafx.text.PrismTextLayout;
38
39 import org.junit.Ignore;
40 import org.junit.Test;
41
42 import sun.font.CharToGlyphMapper;
43 import static org.junit.Assert.*;
44
45 public class TextLayoutTest {
46 private String J = "\u3041"; //Japanese not complex
47 private String D = "\u0907"; //Devanagari complex
48 private String T = "\u0E34"; //Devanagari complex
49
50 class TestSpan implements TextSpan {
51 String text;
52 Object font;
53 TestSpan(Object text, Object font) {
54 this.text = (String)text;
55 this.font = font;
56 }
57 @Override public String getText() {
58 return text;
59 }
60 @Override public Object getFont() {
61 return font;
62 }
63 @Override public RectBounds getBounds() {
64 return null;
65 }
66 }
67
68 public TextLayoutTest() {
69 }
70
71 private void setContent(PrismTextLayout layout, Object... content) {
72 int count = content.length / 2;
73 TextSpan[] spans = new TextSpan[count];
74 int i = 0;
75 while (i < content.length) {
76 spans[i>>1] = new TestSpan(content[i++], content[i++]);
77 }
78 layout.setContent(spans);
79 }
80
81 private void verifyLayout(PrismTextLayout layout, int lineCount, int runCount, int... glyphCount) {
82 TextLine[] lines = layout.getLines();
83 assertEquals("lineCount", lineCount, lines.length);
84 GlyphList[] runs = layout.getRuns();
85 assertEquals("runCount", runCount, runs.length);
86 assertEquals("runCount", runCount, glyphCount.length);
87 for (int i = 0; i < runs.length; i++) {
88 assertEquals("run " +i, glyphCount[i], runs[i].getGlyphCount());
89 }
90 }
91
92 private void verifyComplex(PrismTextLayout layout, boolean... complex) {
93 GlyphList[] runs = layout.getRuns();
94 for (int i = 0; i < runs.length; i++) {
95 assertEquals("run " +i, complex[i], runs[i].isComplex());
96 }
97 }
98
99 @SuppressWarnings("deprecation")
100 @Ignore("RT-31357")
101 @Test public void buildRuns() {
102
103 PrismTextLayout layout = new PrismTextLayout();
104 PGFont font = (PGFont) FontHelper.getNativeFont(Font.font("Monaco", 12));
105 PGFont font2 = (PGFont) FontHelper.getNativeFont(Font.font("Tahoma", 12));
106
107 /* simple case */
108 layout.setContent("hello", font);
109 verifyLayout(layout, 1, 1, 5);
110
111 /* simple case, two workd*/
112 layout.setContent("hello world", font);
113 verifyLayout(layout, 1, 1, 11);
114
115 /* empty string */
116 layout.setContent("", font);
117 verifyLayout(layout, 1, 1, 0);
118
119 /* line break */
120 layout.setContent("\n", font); //first line has the line break (glyphCount=0),
121 verifyLayout(layout, 2, 2, 0,0);
122 layout.setContent("\r", font);
123 verifyLayout(layout, 2, 2, 0,0);
124 layout.setContent("\r\n", font);
125 verifyLayout(layout, 2, 2, 0,0);
126 layout.setContent("a\nb", font);
127 verifyLayout(layout, 2, 3, 1, 0, 1);
128 layout.setContent("\n\n\r\r\n", font);
129 verifyLayout(layout, 5, 5, 0,0,0,0,0);
130
131 /* tabs */
132 layout.setContent("\t", font);
133 verifyLayout(layout, 1, 1, 0);
134 layout.setContent("\t\t", font);
135 verifyLayout(layout, 1, 2, 0,0);
136 layout.setContent("a\tb", font);
137 verifyLayout(layout, 1, 3, 1,0,1);
138
139 /* complex */
140 layout.setContent("aa"+J+J, font);
141 verifyLayout(layout, 1, 1, 4);// no complex (english to japanese)
142 verifyComplex(layout, false);
143
144
145 layout.setContent(D, font);
146 verifyLayout(layout, 1, 1, 1);// complex (english to devanagari)
147 verifyComplex(layout, true);
148
149 layout.setContent("aa"+D+D, font);
150 verifyLayout(layout, 1, 2, 2,2);// complex (english to devanagari)
151 verifyComplex(layout, false, true);
152
153 layout.setContent(D+D+"aa", font);
154 verifyLayout(layout, 1, 2, 2,2);// complex (devanagari to english)
155 verifyComplex(layout, true, false);
156
157 layout.setContent("aa"+D+D+J+J, font);
158 verifyLayout(layout, 1, 3, 2,2,2);// complex (english to devanagari to japanese)
159 verifyComplex(layout, false, true, false);
160
161 /*Tahoma has Thai but no Hindi, font slot break expected*/
162 layout.setContent(D+D+T+T, font2);
163 verifyLayout(layout, 1, 2, 2,2);// complex (devanagari to thai)
164 verifyComplex(layout, true, true);
165
166 layout.setContent(T+T+D+D+T+T, font2);
167 verifyLayout(layout, 1, 3, 2,2,2);
168 verifyComplex(layout, true, true, true);
169
170 layout.setContent(T+T+D+D+"aa", font2);
171 verifyLayout(layout, 1, 3, 2,2,2);
172 verifyComplex(layout, true, true, false);
173
174 layout.setContent(T+T+"aa"+T+T, font2);
175 verifyLayout(layout, 1, 3, 2,2,2);
176 verifyComplex(layout, true, false, true);
177
178 layout.setContent("aa"+D+D+T+T, font2);
179 verifyLayout(layout, 1, 3, 2,2,2);
180 verifyComplex(layout, false, true, true);
181
182 /* Rich Text test */
183
184 setContent(layout, "hello ", font, "world", font);
185 verifyLayout(layout, 1, 2, 6,5);
186 verifyComplex(layout, false, false);
187
188 setContent(layout, "aaa", font, J+J+J, font);
189 verifyLayout(layout, 1, 2, 3,3);
190 verifyComplex(layout, false, false);
191
192 setContent(layout, "aaa", font, D+D+D, font);
193 verifyLayout(layout, 1, 2, 3,3);
194 verifyComplex(layout, false, true);
195
196 /* can't merge \r\n in different spans*/
197 setContent(layout, "aa\r", font, "\nbb", font);
198 verifyLayout(layout, 3, 4, 2,0,0,2);
199 verifyComplex(layout, false, false, false, false);
200
201 setContent(layout, "aa\r\n", font, "bb", font);
202 verifyLayout(layout, 2, 3, 2,0,2);
203 verifyComplex(layout, false, false, false);
204
205 /* can't merge surrogate pairs in different spans*/
206 setContent(layout, "\uD840\uDC0B", font, "\uD840\uDC89\uD840\uDCA2", font);
207 verifyLayout(layout, 1, 2, 2, 4);
208 GlyphList[] runs = layout.getRuns();
209 assertTrue(runs[0].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
210 assertTrue(runs[0].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
211 assertTrue(runs[1].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
212 assertTrue(runs[1].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
213 assertTrue(runs[1].getGlyphCode(2) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
214 assertTrue(runs[1].getGlyphCode(3) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
215
216 /* Split surrogate pair*/
217 setContent(layout, "\uD840\uDC0B\uD840", font, "\uDC89\uD840\uDCA2", font);
218 verifyLayout(layout, 1, 2, 3, 3);
219 runs = layout.getRuns();
220 assertTrue(runs[0].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
221 assertTrue(runs[0].getGlyphCode(1) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
222 assertTrue(runs[0].getGlyphCode(2) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);//broken pair, results in missing glyph
223 assertTrue(runs[1].getGlyphCode(0) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);//broken pair, results in missing glyph
224 assertTrue(runs[1].getGlyphCode(1) != CharToGlyphMapper.INVISIBLE_GLYPH_ID);
225 assertTrue(runs[1].getGlyphCode(2) == CharToGlyphMapper.INVISIBLE_GLYPH_ID);
226
227 }
228
229 }