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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+
26+package sun.java2d.pipe;
27+
28+import java.awt.font.FontRenderContext;
29+import java.awt.font.GlyphVector;
30+import java.awt.font.TextLayout;
31+import sun.java2d.SunGraphics2D;
32+import sun.font.GlyphList;
33+import sun.awt.SunHints;
34+
35+import java.awt.Shape;
36+import java.awt.geom.AffineTransform;
37+import 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+
61+public 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+}