author | chegar |
Sun, 17 Aug 2014 15:54:13 +0100 | |
changeset 25859 | 3317bb8137f4 |
parent 23010 | jdk/src/share/classes/sun/font/TextLabelFactory.java@6dadb192ad81 |
child 30930 | 855dbf52e45d |
permissions | -rw-r--r-- |
2 | 1 |
/* |
23010
6dadb192ad81
8029235: Update copyright year to match last edit in jdk8 jdk repository for 2013
lana
parents:
21235
diff
changeset
|
2 |
* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
2 | 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 |
|
5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 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 |
* |
|
5506 | 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. |
|
2 | 24 |
*/ |
25 |
/* |
|
26 |
* |
|
27 |
* (C) Copyright IBM Corp. 1998-2003 All Rights Reserved |
|
28 |
*/ |
|
29 |
||
30 |
package sun.font; |
|
31 |
||
32 |
import java.awt.Font; |
|
33 |
||
34 |
import java.awt.font.FontRenderContext; |
|
35 |
import java.text.Bidi; |
|
36 |
||
37 |
/** |
|
38 |
* A factory for text labels. Basically this just holds onto the stuff that |
|
39 |
* doesn't change-- the render context, context, and bidi info for the context-- and gets |
|
40 |
* called for each subrange you want to create. |
|
41 |
* |
|
42 |
* @see Font |
|
43 |
* @see FontRenderContext |
|
44 |
* @see GlyphVector |
|
45 |
* @see TextLabel |
|
46 |
* @see ExtendedTextLabel |
|
47 |
* @see Bidi |
|
48 |
* @see TextLayout |
|
49 |
*/ |
|
50 |
||
51 |
public class TextLabelFactory { |
|
52 |
private FontRenderContext frc; |
|
53 |
private char[] text; |
|
54 |
private Bidi bidi; |
|
55 |
private Bidi lineBidi; |
|
56 |
private int flags; |
|
57 |
private int lineStart; |
|
58 |
private int lineLimit; |
|
59 |
||
60 |
/** |
|
61 |
* Initialize a factory to produce glyph arrays. |
|
62 |
* @param frc the FontRenderContext to use for the arrays to be produced. |
|
63 |
* @param text the text of the paragraph. |
|
64 |
* @param bidi the bidi information for the paragraph text, or null if the |
|
65 |
* entire text is left-to-right text. |
|
66 |
*/ |
|
67 |
public TextLabelFactory(FontRenderContext frc, |
|
68 |
char[] text, |
|
69 |
Bidi bidi, |
|
70 |
int flags) { |
|
71 |
this.frc = frc; |
|
21235
38393a2aaf88
8001173: [findbugs] Evaluate FindBug output for sun.font.CompositeFont, sun.font.CompositeFontDescriptor
vadim
parents:
5506
diff
changeset
|
72 |
this.text = text.clone(); |
2 | 73 |
this.bidi = bidi; |
74 |
this.flags = flags; |
|
75 |
this.lineBidi = bidi; |
|
76 |
this.lineStart = 0; |
|
77 |
this.lineLimit = text.length; |
|
78 |
} |
|
79 |
||
80 |
public FontRenderContext getFontRenderContext() { |
|
81 |
return frc; |
|
82 |
} |
|
83 |
||
84 |
public Bidi getLineBidi() { |
|
85 |
return lineBidi; |
|
86 |
} |
|
87 |
||
88 |
/** |
|
89 |
* Set a line context for the factory. Shaping only occurs on this line. |
|
90 |
* Characters are ordered as they would appear on this line. |
|
91 |
* @param lineStart the index within the text of the start of the line. |
|
92 |
* @param lineLimit the index within the text of the limit of the line. |
|
93 |
*/ |
|
94 |
public void setLineContext(int lineStart, int lineLimit) { |
|
95 |
this.lineStart = lineStart; |
|
96 |
this.lineLimit = lineLimit; |
|
97 |
if (bidi != null) { |
|
98 |
lineBidi = bidi.createLineBidi(lineStart, lineLimit); |
|
99 |
} |
|
100 |
} |
|
101 |
||
102 |
/** |
|
103 |
* Create an extended glyph array for the text between start and limit. |
|
104 |
* |
|
105 |
* @param font the font to use to generate glyphs and character positions. |
|
106 |
* @param start the start of the subrange for which to create the glyph array |
|
107 |
* @param limit the limit of the subrange for which to create glyph array |
|
108 |
* |
|
109 |
* Start and limit must be within the bounds of the current line. If no |
|
110 |
* line context has been set, the entire text is used as the current line. |
|
111 |
* The text between start and limit will be treated as though it all has |
|
112 |
* the same bidi level (and thus the same directionality) as the character |
|
113 |
* at start. Clients should ensure that all text between start and limit |
|
114 |
* has the same bidi level for the current line. |
|
115 |
*/ |
|
116 |
public ExtendedTextLabel createExtended(Font font, |
|
117 |
CoreMetrics lm, |
|
118 |
Decoration decorator, |
|
119 |
int start, |
|
120 |
int limit) { |
|
121 |
||
122 |
if (start >= limit || start < lineStart || limit > lineLimit) { |
|
123 |
throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit); |
|
124 |
} |
|
125 |
||
126 |
int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart); |
|
127 |
int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1; |
|
128 |
int layoutFlags = flags & ~0x9; // remove bidi, line direction flags |
|
129 |
if ((level & 0x1) != 0) layoutFlags |= 1; // rtl |
|
130 |
if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl |
|
131 |
||
132 |
TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm); |
|
133 |
return new ExtendedTextSourceLabel(source, decorator); |
|
134 |
} |
|
135 |
||
136 |
/** |
|
137 |
* Create a simple glyph array for the text between start and limit. |
|
138 |
* |
|
139 |
* @param font the font to use to generate glyphs and character positions. |
|
140 |
* @param start the start of the subrange for which to create the glyph array |
|
141 |
* @param limit the limit of the subrange for which to create glyph array |
|
142 |
*/ |
|
143 |
public TextLabel createSimple(Font font, |
|
144 |
CoreMetrics lm, |
|
145 |
int start, |
|
146 |
int limit) { |
|
147 |
||
148 |
if (start >= limit || start < lineStart || limit > lineLimit) { |
|
149 |
throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit); |
|
150 |
} |
|
151 |
||
152 |
int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart); |
|
153 |
int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1; |
|
154 |
int layoutFlags = flags & ~0x9; // remove bidi, line direction flags |
|
155 |
if ((level & 0x1) != 0) layoutFlags |= 1; // rtl |
|
156 |
if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl |
|
157 |
TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm); |
|
158 |
return new TextSourceLabel(source); |
|
159 |
} |
|
160 |
} |