1 /*
2 * Copyright (c) 2000, 2018, 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
32 import sun.java2d.SunGraphics2D;
33 import sun.java2d.SurfaceData;
34 import sun.font.GlyphList;
35 import sun.java2d.loops.FontInfo;
36
37 /**
38 * A delegate pipe of SG2D for drawing text.
39 */
40
41 public abstract class GlyphListPipe implements TextPipe {
42
43 public void drawString(SunGraphics2D sg2d, String s,
44 double x, double y)
45 {
46 FontInfo info = sg2d.getFontInfo();
47 if (info.pixelHeight > OutlineTextRenderer.THRESHHOLD) {
48 SurfaceData.outlineTextRenderer.drawString(sg2d, s, x, y);
49 return;
50 }
51
52 float devx, devy;
53 if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
54 double[] origin = {x + info.originX, y + info.originY};
55 sg2d.transform.transform(origin, 0, origin, 0, 1);
56 devx = (float)origin[0];
57 devy = (float)origin[1];
58 } else {
59 devx = (float)(x + info.originX + sg2d.transX);
60 devy = (float)(y + info.originY + sg2d.transY);
61 }
62 /* setFromString returns false if shaping is needed, and we then back
63 * off to a TextLayout. Such text may benefit slightly from a lower
64 * overhead in this approach over the approach in previous releases.
65 */
66 GlyphList gl = GlyphList.getInstance();
67 if (gl.setFromString(info, s, devx, devy)) {
68 drawGlyphList(sg2d, gl);
69 gl.dispose();
70 } else {
71 gl.dispose(); // release this asap.
72 TextLayout tl = new TextLayout(s, sg2d.getFont(),
73 sg2d.getFontRenderContext());
74 tl.draw(sg2d, (float)x, (float)y);
75 }
76 }
77
78 public void drawChars(SunGraphics2D sg2d,
79 char[] data, int offset, int length,
80 int ix, int iy)
81 {
82 FontInfo info = sg2d.getFontInfo();
83 float x, y;
84 if (info.pixelHeight > OutlineTextRenderer.THRESHHOLD) {
85 SurfaceData.outlineTextRenderer.drawChars(
86 sg2d, data, offset, length, ix, iy);
87 return;
88 }
89 if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
90 double[] origin = {ix + info.originX, iy + info.originY};
91 sg2d.transform.transform(origin, 0, origin, 0, 1);
92 x = (float) origin[0];
93 y = (float) origin[1];
94 } else {
95 x = ix + info.originX + sg2d.transX;
96 y = iy + info.originY + sg2d.transY;
97 }
98 GlyphList gl = GlyphList.getInstance();
99 if (gl.setFromChars(info, data, offset, length, x, y)) {
100 drawGlyphList(sg2d, gl);
101 gl.dispose();
102 } else {
103 gl.dispose(); // release this asap.
104 TextLayout tl = new TextLayout(new String(data, offset, length),
105 sg2d.getFont(),
106 sg2d.getFontRenderContext());
107 tl.draw(sg2d, ix, iy);
108
109 }
110 }
111
112 public void drawGlyphVector(SunGraphics2D sg2d, GlyphVector gv,
113 float x, float y)
114 {
115 FontRenderContext frc = gv.getFontRenderContext();
116 FontInfo info = sg2d.getGVFontInfo(gv.getFont(), frc);
117 if (info.pixelHeight > OutlineTextRenderer.THRESHHOLD) {
118 SurfaceData.outlineTextRenderer.drawGlyphVector(sg2d, gv, x, y);
119 return;
120 }
121 if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
122 double[] origin = {x, y};
123 sg2d.transform.transform(origin, 0, origin, 0, 1);
124 x = (float) origin[0];
125 y = (float) origin[1];
126 } else {
127 x += sg2d.transX; // don't use the glyph info origin, already in gv.
128 y += sg2d.transY;
129 }
130
131 GlyphList gl = GlyphList.getInstance();
132 gl.setFromGlyphVector(info, gv, x, y);
133 drawGlyphList(sg2d, gl, info.aaHint);
134 gl.dispose();
135 }
136
137 protected abstract void drawGlyphList(SunGraphics2D sg2d, GlyphList gl);
138
139 protected void drawGlyphList(SunGraphics2D sg2d, GlyphList gl,
140 int aaHint) {
141 drawGlyphList(sg2d, gl);
142 }
143 }