1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.render.ps;
import java.awt.Dimension;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.fop.image.EPSImage;
import org.apache.fop.image.FopImage;
import org.apache.fop.image.JpegImage;
import org.apache.xmlgraphics.ps.PSGenerator;
import org.apache.xmlgraphics.ps.PSResource;
/**
* Utility code for rendering images in PostScript.
*/
public class PSImageUtils extends org.apache.xmlgraphics.ps.PSImageUtils {
/** logging instance */
protected static Log log = LogFactory.getLog(PSImageUtils.class);
/**
* Renders a bitmap image to PostScript.
* @param img image to render
* @param x x position
* @param y y position
* @param w width
* @param h height
* @param gen PS generator
* @throws IOException In case of an I/O problem while rendering the image
*/
public static void renderBitmapImage(FopImage img,
float x, float y, float w, float h, PSGenerator gen)
throws IOException {
boolean isJPEG = (img instanceof JpegImage && (gen.getPSLevel() >= 3));
byte[] imgmap = convertImageToRawBitmapArray(img, isJPEG);
if (imgmap == null) {
gen.commentln("%Image data is not available: " + img);
return; //Image cannot be converted
}
String imgDescription = img.getMimeType() + " " + img.getOriginalURI();
Dimension imgDim = new Dimension(img.getWidth(), img.getHeight());
Rectangle2D targetRect = new Rectangle2D.Double(x, y, w, h);
writeImage(imgmap, imgDim, imgDescription, targetRect, isJPEG,
img.getColorSpace(), gen);
}
/**
* Renders a bitmap image (as form) to PostScript.
* @param img image to render
* @param form the form resource
* @param x x position
* @param y y position
* @param w width
* @param h height
* @param gen PS generator
* @throws IOException In case of an I/O problem while rendering the image
*/
public static void renderForm(FopImage img, PSResource form,
float x, float y, float w, float h, PSGenerator gen)
throws IOException {
Rectangle2D targetRect = new Rectangle2D.Double(x, y, w, h);
paintForm(form, targetRect, gen);
}
/**
* Generates a form resource for a FopImage in PostScript.
* @param img image to render
* @param form the form resource
* @param gen PS generator
* @throws IOException In case of an I/O problem while rendering the image
*/
public static void generateFormResourceForImage(FopImage img, PSResource form,
PSGenerator gen) throws IOException {
boolean isJPEG = (img instanceof JpegImage && (gen.getPSLevel() >= 3));
byte[] imgmap = convertImageToRawBitmapArray(img, isJPEG);
if (imgmap == null) {
gen.commentln("%Image data is not available: " + img);
return; //Image cannot be converted
}
String imgDescription = img.getMimeType() + " " + img.getOriginalURI();
Dimension imgDim = new Dimension(img.getWidth(), img.getHeight());
writeReusableImage(imgmap, imgDim, form.getName(), imgDescription, isJPEG,
img.getColorSpace(), gen);
}
private static byte[] convertImageToRawBitmapArray(FopImage img, boolean allowUndecodedJPEG)
throws IOException {
if (img instanceof JpegImage && allowUndecodedJPEG) {
if (!img.load(FopImage.ORIGINAL_DATA)) {
return null;
}
} else {
if (!img.load(FopImage.BITMAP)) {
return null;
}
}
byte[] imgmap;
if (img.getBitmapsSize() > 0) {
imgmap = img.getBitmaps();
} else {
imgmap = img.getRessourceBytes();
}
return imgmap;
}
/**
* Renders an EPS image to PostScript.
* @param img EPS image to render
* @param x x position
* @param y y position
* @param w width
* @param h height
* @param gen PS generator
*/
public static void renderEPS(EPSImage img,
float x, float y, float w, float h,
PSGenerator gen) {
try {
if (!img.load(FopImage.ORIGINAL_DATA)) {
gen.commentln("%EPS image could not be processed: " + img);
return;
}
int[] bbox = img.getBBox();
int bboxw = bbox[2] - bbox[0];
int bboxh = bbox[3] - bbox[1];
String name = img.getDocName();
if (name == null || name.length() == 0) {
name = img.getOriginalURI();
}
renderEPS(img.getEPSImage(), name,
x, y, w, h,
bbox[0], bbox[1], bboxw, bboxh, gen);
} catch (Exception e) {
log.error("PSRenderer.renderImageArea(): Error rendering bitmap ("
+ e.getMessage() + ")", e);
}
}
}
|
