1 /*
2 * Copyright (c) 2012, 2019, 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.pgstub;
27
28 import com.sun.javafx.geom.BaseBounds;
29 import com.sun.javafx.geom.Path2D;
30 import com.sun.javafx.geom.RectBounds;
31 import com.sun.javafx.geom.Shape;
32 import com.sun.javafx.scene.text.*;
33 import javafx.scene.shape.PathElement;
34 import javafx.scene.text.Font;
35
36 public class StubTextLayout implements TextLayout {
37
38 @Override
39 public boolean setContent(TextSpan[] spans) {
40 return true;
41 }
42
43 private String text;
44 private Font font;
45 private int tabSize = DEFAULT_TAB_SIZE;
46
47 @Override
48 public boolean setContent(String text, Object font) {
49 this.text = text;
50 final StubFontLoader.StubFont stub = ((StubFontLoader.StubFont)font);
51 this.font = stub == null ? null : stub.font;
52 return true;
53 }
54
55 @Override
56 public boolean setAlignment(int alignment) {
57 return true;
58 }
59
60 @Override
61 public boolean setWrapWidth(float wrapWidth) {
62 return true;
63 }
64
65 @Override
66 public boolean setLineSpacing(float spacing) {
67 return true;
68 }
69
70 @Override
71 public boolean setDirection(int direction) {
72 return true;
73 }
74
75 @Override
76 public boolean setBoundsType(int type) {
77 return true;
78 }
79
80 @Override
81 public BaseBounds getBounds() {
82 return getBounds(null, new RectBounds());
83 }
84
85 @Override
86 public BaseBounds getBounds(TextSpan filter, BaseBounds bounds) {
87 final double fontSize = (font == null ? 0 : ((Font)font).getSize());
88 final String[] lines = text.split("\n");
89 double width = 0.0;
90 double height = fontSize * lines.length;
91 for (String line : lines) {
92 int tabs = 0;
93 final int length;
94 if (line.contains("\t")) {
95 // count chars but when encountering a tab round up to a tabSize boundary
96 char [] chrs = line.toCharArray();
97 int spaces = 0;
98 for (int i = 0; i < chrs.length; i++) {
99 if (chrs[i] == '\t') {
100 if (tabSize != 0) {
101 while ((++spaces % tabSize) != 0) {}
102 }
103 } else {
104 spaces++;
105 }
106 }
107 length = spaces;
108 } else {
109 length = line.length();
110 }
111 width = Math.max(width, fontSize * length);
112 }
113 return bounds.deriveWithNewBounds(0, (float)-fontSize, 0,
114 (float)width, (float)(height-fontSize), 0);
115 }
116
117 class StubTextLine implements TextLine {
118 @Override public GlyphList[] getRuns() {
119 return new GlyphList[0];
120 }
121 @Override public RectBounds getBounds() {
122 return new RectBounds();
123 }
124 @Override public float getLeftSideBearing() {
125 return 0;
126 }
127 @Override public float getRightSideBearing() {
128 return 0;
129 }
130 @Override public int getStart() {
131 return 0;
132 }
133 @Override public int getLength() {
134 return 0;
135 }
136 }
137
138 @Override
139 public TextLine[] getLines() {
140 return new TextLine[] {new StubTextLine()};
141 }
142
143 @Override
144 public GlyphList[] getRuns() {
145 return new GlyphList[0];
146 }
147
148 @Override
149 public Shape getShape(int type, TextSpan filter) {
150 return new Path2D();
151 }
152
153 @Override
154 public Hit getHitInfo(float x, float y) {
155 // TODO this probably needs to be entirely rewritten...
156 if (text == null) {
157 return new Hit(0, -1, true);
158 }
159
160 final double fontSize = (font == null ? 0 : ((Font)font).getSize());
161 final String[] lines = text.split("\n");
162 int lineIndex = Math.min(lines.length - 1, (int) (y / fontSize));
163 if (lineIndex >= lines.length) {
164 throw new IllegalStateException("Asked for hit info out of y range: x=" + x + "y=" +
165 + y + "text='" + text + "', lineIndex=" + lineIndex + ", numLines=" + lines.length +
166 ", fontSize=" + fontSize);
167 }
168 int offset = 0;
169 for (int i=0; i<lineIndex; i++) {
170 offset += lines[i].length() + 1; // add in the \n
171 }
172
173 int charPos = (int) (x / lines[lineIndex].length());
174 if (charPos + offset > text.length()) {
175 throw new IllegalStateException("Asked for hit info out of x range");
176 }
177
178 return new Hit(offset + charPos, -1, true);
179 }
180
181 @Override
182 public PathElement[] getCaretShape(int offset, boolean isLeading, float x,
183 float y) {
184 return new PathElement[0];
185 }
186
187 @Override
188 public PathElement[] getRange(int start, int end, int type, float x, float y) {
189 return new PathElement[0];
190 }
191
192 @Override
193 public BaseBounds getVisualBounds(int type) {
194 return new RectBounds();
195 }
196
197 @Override
198 public boolean setTabSize(int spaces) {
199 if (spaces < 1)
200 spaces = 1;
201 if (tabSize != spaces) {
202 tabSize = spaces;
203 return true;
204 }
205 return false;
206 }
207
208 }