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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/sun/java2d/pipe/OutlineTextRenderer.java (1 of 18352 files). Show all

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java/pkg/sun/java2d/pipe/OutlineTextRenderer.java+145−0
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1/*
2 * Copyright (c) 2000, 2005, 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
26package sun.java2d.pipe;
27
28import java.awt.font.FontRenderContext;
29import java.awt.font.GlyphVector;
30import java.awt.font.TextLayout;
31import sun.java2d.SunGraphics2D;
32import sun.font.GlyphList;
33import sun.awt.SunHints;
34
35import java.awt.Shape;
36import java.awt.geom.AffineTransform;
37import java.awt.font.TextLayout;
38
39/**
40 * A delegate pipe of SG2D for drawing "large" text with
41 * a solid source colour to an opaque destination.
42 * The text is drawn as a filled outline.
43 * Since the developer is not explicitly requesting this way of
44 * rendering, this should not be used if the current paint is not
45 * a solid colour.
46 *
47 * If text anti-aliasing is requested by the application, and
48 * filling path, an anti-aliasing fill pipe needs to
49 * be invoked.
50 * This involves making some of the same decisions as in the
51 * validatePipe call, which may be in a SurfaceData subclass, so
52 * its awkward to always ensure that the correct pipe is used.
53 * The easiest thing, rather than reproducing much of that logic
54 * is to call validatePipe() which works but is expensive, although
55 * probably not compared to the cost of filling the path.
56 * Note if AA hint is ON but text-AA hint is OFF this logic will
57 * produce AA text which perhaps isn't what the user expected.
58 * Note that the glyphvector obeys its FRC, not the G2D.
59 */
60
61public class OutlineTextRenderer implements TextPipe {
62
63 // Text with a height greater than the threshhold will be
64 // drawn via this pipe.
65 public static final int THRESHHOLD = 100;
66
67 public void drawChars(SunGraphics2D g2d,
68 char data[], int offset, int length,
69 int x, int y) {
70
71 String s = new String(data, offset, length);
72 drawString(g2d, s, x, y);
73 }
74
75 public void drawString(SunGraphics2D g2d, String str, double x, double y) {
76
77 if ("".equals(str)) {
78 return; // TextLayout constructor throws IAE on "".
79 }
80 TextLayout tl = new TextLayout(str, g2d.getFont(),
81 g2d.getFontRenderContext());
82 Shape s = tl.getOutline(AffineTransform.getTranslateInstance(x, y));
83
84 int textAAHint = g2d.getFontInfo().aaHint;
85
86 int prevaaHint = - 1;
87 if (textAAHint != SunHints.INTVAL_TEXT_ANTIALIAS_OFF &&
88 g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) {
89 prevaaHint = g2d.antialiasHint;
90 g2d.antialiasHint = SunHints.INTVAL_ANTIALIAS_ON;
91 g2d.validatePipe();
92 } else if (textAAHint == SunHints.INTVAL_TEXT_ANTIALIAS_OFF
93 && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_OFF) {
94 prevaaHint = g2d.antialiasHint;
95 g2d.antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
96 g2d.validatePipe();
97 }
98
99 g2d.fill(s);
100
101 if (prevaaHint != -1) {
102 g2d.antialiasHint = prevaaHint;
103 g2d.validatePipe();
104 }
105 }
106
107 public void drawGlyphVector(SunGraphics2D g2d, GlyphVector gv,
108 float x, float y) {
109
110
111 Shape s = gv.getOutline(x, y);
112 int prevaaHint = - 1;
113 FontRenderContext frc = gv.getFontRenderContext();
114 boolean aa = frc.isAntiAliased();
115
116 /* aa will be true if any AA mode has been specified.
117 * ie for LCD and 'gasp' modes too.
118 * We will check if 'gasp' has resolved AA to be "OFF", and
119 * in all other cases (ie AA ON and all LCD modes) use AA outlines.
120 */
121 if (aa) {
122 if (g2d.getGVFontInfo(gv.getFont(), frc).aaHint ==
123 SunHints.INTVAL_TEXT_ANTIALIAS_OFF) {
124 aa = false;
125 }
126 }
127
128 if (aa && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) {
129 prevaaHint = g2d.antialiasHint;
130 g2d.antialiasHint = SunHints.INTVAL_ANTIALIAS_ON;
131 g2d.validatePipe();
132 } else if (!aa && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_OFF) {
133 prevaaHint = g2d.antialiasHint;
134 g2d.antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
135 g2d.validatePipe();
136 }
137
138 g2d.fill(s);
139
140 if (prevaaHint != -1) {
141 g2d.antialiasHint = prevaaHint;
142 g2d.validatePipe();
143 }
144 }
145}