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51 package org.apache.fop.pdf;
52
53 import java.io.IOException  ;
55 import java.io.UnsupportedEncodingException ;
56 import java.io.OutputStream ;
57
58 import org.apache.fop.datatypes.ColorSpace;
60 import org.apache.fop.messaging.MessageHandler;
61 import org.apache.fop.pdf.PDFDocument;
62 import org.apache.fop.pdf.PDFICCStream;
63 import org.apache.fop.image.FopImage;
64 import org.apache.fop.image.EPSImage;
65 import org.apache.fop.image.JpegImage;
66 import org.apache.fop.image.FopImageException;
67
68
69
70
71
78 public class PDFXObject extends PDFObject {
79 private boolean isPS;
80 private PDFDocument pdfDoc;
81 private PDFICCStream pdfICCStream;
82
83 FopImage fopimage;
84 int Xnum;
85
86
90 public PDFXObject(int number, int Xnumber, FopImage img) {
91 this(number, Xnumber, img, null);
92 }
93
94 public PDFXObject(int number, int Xnumber, FopImage img, PDFDocument pdfdoc) {
95 super(number);
96 isPS = false;
97 this.Xnum = Xnumber;
98 if (img == null)
99 MessageHandler.errorln("FISH");
100 fopimage = img;
101 this.pdfDoc = pdfdoc;
102 pdfICCStream = null;
103 try {
104 if (fopimage instanceof JpegImage) {
105 fopimage.getBitmaps();
106 JpegImage jpegimage = (JpegImage)fopimage;
107 if (jpegimage.getColorSpace().hasICCProfile()) {
108 pdfICCStream = pdfDoc.makePDFICCStream();
109 pdfICCStream.setColorSpace(jpegimage.getColorSpace());
110 pdfICCStream.addDefaultFilters();
111 if (pdfDoc.encryption != null) {
112 pdfICCStream.addFilter(pdfDoc.encryption.makeFilter(pdfICCStream.number, pdfICCStream.generation));
113 }
114 }
115 }
116 } catch (Exception e) {
117 MessageHandler.errorln("Error while reading image " + fopimage.getURL() +
118 ": " + e.getMessage());
119 }
120 }
121
122
125 public int getXNumber() {
126 return this.Xnum;
127 }
128
129
132 protected int output(OutputStream stream) throws IOException {
133 int length = 0;
134 int i = 0;
135
136 try {
137 if (fopimage instanceof EPSImage) {
138 isPS = true;
139 EPSImage epsImage = (EPSImage)fopimage;
140 int[] bbox = epsImage.getBBox();
141 int bboxw = bbox[2] - bbox[0];
142 int bboxh = bbox[3] - bbox[1];
143
144 PDFStream imgStream = new PDFStream(0);
146
147 StringBuffer preamble = new StringBuffer ();
148 preamble.append("%%BeginDocument: " + epsImage.getDocName() + "\n");
149
150 preamble.append("userdict begin % Push userdict on dict stack\n");
151 preamble.append("/PreEPS_state save def\n");
152 preamble.append("/dict_stack countdictstack def\n");
153 preamble.append("/ops_count count 1 sub def\n");
154 preamble.append("/showpage {} def\n");
155
156
157 preamble.append((double)(1f/(double)bboxw) + " " + (double)(1f/(double)bboxh) + " scale\n");
158 preamble.append(-bbox[0] + " " + (-bbox[1]) + " translate\n");
159 preamble.append(bbox[0] + " " + bbox[1] + " " + bboxw + " " + bboxh + " rectclip\n");
160 preamble.append("newpath\n");
161
162 StringBuffer post = new StringBuffer ();
163 post.append("%%EndDocument\n");
164 post.append("count ops_count sub {pop} repeat\n");
165 post.append("countdictstack dict_stack sub {end} repeat\n");
166 post.append("PreEPS_state restore\n");
167 post.append("end % userdict\n");
168
169 byte[] preBytes;
170 try {
171 preBytes = preamble.toString().getBytes(PDFDocument.ENCODING);
172 } catch (UnsupportedEncodingException ue) {
173 preBytes = preamble.toString().getBytes();
174 }
175 byte[] postBytes;
176 try {
177 postBytes = post.toString().getBytes(PDFDocument.ENCODING);
178 } catch (UnsupportedEncodingException ue) {
179 postBytes = post.toString().getBytes();
180 }
181 byte[] imgData = new byte[preBytes.length + postBytes.length + fopimage.getBitmaps().length];
182
183 System.arraycopy (preBytes, 0, imgData, 0, preBytes.length);
184 System.arraycopy (fopimage.getBitmaps(), 0, imgData, preBytes.length, fopimage.getBitmaps().length);
185 System.arraycopy (postBytes, 0, imgData, preBytes.length + fopimage.getBitmaps().length, postBytes.length);
186
187
188 imgStream.setData(imgData);
189 imgStream.addDefaultFilters();
191 if (pdfDoc.encryption != null) {
192 imgStream.addFilter(pdfDoc.encryption.makeFilter(this.number,this.generation));
193 }
194
195 String dictEntries = imgStream.applyFilters();
196
197 String p = this.number + " " + this.generation + " obj\n";
198 p = p + "<</Type /XObject\n";
199 p = p + "/Subtype /PS\n";
200 p = p + "/Length " + imgStream.getDataLength();
201
202
205 p = p + dictEntries;
206 p = p + ">>\n";
207
208 byte[] pdfBytes;
210 try {
211 pdfBytes = p.getBytes(PDFDocument.ENCODING);
212 } catch (UnsupportedEncodingException ue) {
213 pdfBytes = p.getBytes();
214 }
215 stream.write(pdfBytes);
216 length += pdfBytes.length;
217 length += imgStream.outputStreamData(stream);
219
220 try {
221 pdfBytes = ("endobj\n").getBytes(PDFDocument.ENCODING);
222 } catch (UnsupportedEncodingException ue) {
223 pdfBytes = ("endobj\n").getBytes();
224 }
225 stream.write(pdfBytes);
226 length += pdfBytes.length;
227
228 } else {
229
230 PDFStream imgStream = new PDFStream(0);
232
233 imgStream.setData(fopimage.getBitmaps());
234
235
239
244
245 if (fopimage.getPDFFilter() != null) {
246 imgStream.addFilter(fopimage.getPDFFilter());
247 } else {
248 imgStream.addDefaultFilters();
249 }
250 if (pdfDoc.encryption != null) {
251 imgStream.addFilter(pdfDoc.encryption.makeFilter(this.number,this.generation));
252 }
253
254 String dictEntries = imgStream.applyFilters();
255
256 String p = this.number + " " + this.generation + " obj\n";
257 p = p + "<</Type /XObject\n";
258 p = p + "/Subtype /Image\n";
259 p = p + "/Name /Im" + Xnum + "\n";
260 p = p + "/Length " + imgStream.getDataLength() + "\n";
261 p = p + "/Width " + fopimage.getWidth() + "\n";
262 p = p + "/Height " + fopimage.getHeight() + "\n";
263 p = p + "/BitsPerComponent " + fopimage.getBitsPerPixel() + "\n";
264
265 if (pdfICCStream != null ) {
266 p = p + "/ColorSpace [/ICCBased " + pdfICCStream.referencePDF() + "]\n";
267 } else {
268 ColorSpace cs = fopimage.getColorSpace();
269 p = p + "/ColorSpace /" + cs.getColorSpacePDFString() + "\n";
270 }
271
272
274 if (fopimage.getColorSpace().getColorSpace() == ColorSpace.DEVICE_CMYK &&
275 fopimage.invertImage()) {
276 p = p + "/Decode [ 1.0 0.0 1.0 0.0 1.0 0.0 1.1 0.0 ]\n";
277 }
278
279 if (fopimage.isTransparent()) {
280 PDFColor transp = fopimage.getTransparentColor();
281 p = p + "/Mask [" + transp.red255() + " " + transp.red255()
282 + " " + transp.green255() + " " + transp.green255() + " "
283 + transp.blue255() + " " + transp.blue255() + "]\n";
284 }
285 p = p + dictEntries;
286 p = p + ">>\n";
287
288
291 byte[] pdfBytes;
293 try {
294 pdfBytes = p.getBytes(PDFDocument.ENCODING);
295 } catch (UnsupportedEncodingException ue) {
296 pdfBytes = p.getBytes();
297 }
298 stream.write(pdfBytes);
299 length += pdfBytes.length;
300 length += imgStream.outputStreamData(stream);
302
303 try {
304 pdfBytes = ("endobj\n").getBytes(PDFDocument.ENCODING);
305 } catch (UnsupportedEncodingException ue) {
306 pdfBytes = ("endobj\n").getBytes();
307 }
308 stream.write(pdfBytes);
309 length += pdfBytes.length;
310 }
311 } catch (FopImageException imgex) {
312 MessageHandler.errorln("Error in XObject : "
313 + imgex.getMessage());
314 }
315
316 return length;
317 }
318
319 byte[] toPDF() {
320
337 return null;
338 }
339
340 }
341 |
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