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51 package org.apache.fop.render.pdf.fonts;
52
53 import org.apache.fop.fonts.FontFileReader;
54 import org.apache.fop.fonts.TTFSubSetFile;
55 import org.apache.fop.layout.FontDescriptor;
56 import org.apache.fop.messaging.MessageHandler;
57 import org.apache.fop.pdf.PDFCIDFont;
58 import org.apache.fop.pdf.PDFStream;
59 import org.apache.fop.pdf.PDFTTFStream;
60 import org.apache.fop.pdf.PDFWArray;
61 import org.apache.fop.render.pdf.CIDFont;
62
63 import java.io.InputStream  ;
64 import java.io.IOException ;
65 import java.util.Map ;
66 import java.net.URL ;
67
68
71 public class MultiByteFont extends CIDFont implements FontDescriptor {
72 public String fontName = null;
73 public String ttcName = null;
74 public String encoding = "Identity-H";
75
76 public int capHeight = 0;
77 public int xHeight = 0;
78 public int ascender = 0;
79 public int descender = 0;
80 public int[] fontBBox = {
81 0, 0, 0, 0
82 };
83
84 public URL embedFileName = null;
85 public String embedResourceName = null;
86 public PDFTTFStream embeddedFont = null;
87
88 public int flags = 4;
89 public int stemV = 0;
90 public int italicAngle = 0;
91 public int missingWidth = 0;
92 public int defaultWidth = 0;
93 public byte cidType = PDFCIDFont.CID_TYPE2;
94
95 public Map kerning = new java.util.HashMap ();
96 public boolean useKerning = true;
97 private String namePrefix = null; private static int uniqueCounter = 1;
99 public PDFWArray warray = new PDFWArray();
100 public int width[] = null;
101
102 public BFEntry[] bfentries = null;
103
104
105
108 private Map usedGlyphs = new java.util.HashMap ();
109
110
113 private Map usedGlyphsIndex = new java.util.HashMap ();
114 int usedGlyphsCount = 0;
115
116 public MultiByteFont() {
117 usedGlyphs.put(new Integer (0), new Integer (0));
119 usedGlyphsIndex.put(new Integer (0), new Integer (0));
120 usedGlyphsCount++;
121 usedGlyphs.put(new Integer (1), new Integer (1));
122 usedGlyphsIndex.put(new Integer (1), new Integer (1));
123 usedGlyphsCount++;
124 usedGlyphs.put(new Integer (2), new Integer (2));
125 usedGlyphsIndex.put(new Integer (2), new Integer (2));
126 usedGlyphsCount++;
127
128 int cnt = 0;
130 synchronized (this.getClass()) {
131 cnt = uniqueCounter++;
132 }
133 int ctm = (int)(System.currentTimeMillis() & 0xffff);
134 namePrefix = new String (cnt + "E" + Integer.toHexString(ctm));
135 }
136
137 public final boolean hasKerningInfo() {
138 return (useKerning & kerning.isEmpty());
139 }
140
141 public final Map getKerningInfo() {
142 if (useKerning)
143 return kerning;
144 else
145 return new java.util.HashMap ();
146 }
147
148 public byte getSubType() {
149 return org.apache.fop.pdf.PDFFont.TYPE0;
150 }
151
152 public String getLang() {
153 return null;
154 }
155
156 public String getPanose() {
157 return null;
158 }
159
160 public int getAvgWidth() {
161 return -1;
162 }
163
164 public int getMinWidth() {
165 return -1;
166 }
167
168 public int getMaxWidth() {
169 return -1;
170 }
171
172 public int getleading() {
173 return -1;
174 }
175
176 public int getStemH() {
177 return 0;
178 }
179
180 public int getMissingWidth() {
181 return missingWidth;
182 }
183
184 public int getDefaultWidth() {
185 return defaultWidth;
186 }
187
188 public String getRegistry() {
189 return "Adobe";
190 }
191
192 public String getOrdering() {
193 return "UCS";
194 }
195
196 public int getSupplement() {
197 return 0;
198 }
199
200 public byte getCidType() {
201 return cidType;
202 }
203
204 public String getCidBaseFont() {
205 return isEmbeddable() ? namePrefix + fontName : fontName;
206 }
207
208 public String getCharEncoding() {
209 return "Identity-H";
210 }
211
212 public PDFWArray getWidths() {
213 if (isEmbeddable()) {
214 warray = new PDFWArray();
216 int[] tmpWidth = new int[usedGlyphsCount];
217
218 for (int i = 0; i < usedGlyphsCount; i++) {
219 Integer nw = (Integer )usedGlyphsIndex.get(new Integer (i));
220 int nwx = (nw == null) ? 0 : nw.intValue();
221 tmpWidth[i] = width[nwx];
222 }
223 warray.addEntry(0, tmpWidth);
224 }
225 return warray;
226 }
227
228 public boolean isEmbeddable() {
229 return (embedFileName == null && embedResourceName == null) ? false
230 : true;
231 }
232
233
234 public PDFStream getFontFile(int i) {
235 try {
236 InputStream in = embedFileName.openStream();
237 FontFileReader reader = new FontFileReader(in);
238 in.close();
239 TTFSubSetFile subset = new TTFSubSetFile();
240
241 byte[] subsetFont = subset.readFont(reader, ttcName, usedGlyphs);
242
244 embeddedFont = new PDFTTFStream(i, subsetFont.length);
245 embeddedFont.addFilter("flate");
246 embeddedFont.addFilter("ascii-85");
247 embeddedFont.setData(subsetFont, subsetFont.length);
248 } catch (IOException ioe) {
249 MessageHandler.errorln("Failed to embed font [" + i + "] "
250 + fontName + ": " + ioe.getMessage());
251 return (PDFStream)null;
252 }
253
254 return (PDFStream)embeddedFont;
255 }
256
257 public String encoding() {
258 return encoding;
259 }
260
261 public String fontName() {
262 return isEmbeddable() ? namePrefix + fontName : fontName;
263 }
264
265 public int getAscender() {
266 return ascender;
267 }
268
269 public int getDescender() {
270 return descender;
271 }
272
273 public int getCapHeight() {
274 return capHeight;
275 }
276
277 public int getAscender(int size) {
278 return size * ascender;
279 }
280
281 public int getCapHeight(int size) {
282 return size * capHeight;
283 }
284
285 public int getDescender(int size) {
286 return size * descender;
287 }
288
289 public int getXHeight(int size) {
290 return size * xHeight;
291 }
292
293 public int getFlags() {
294 return flags;
295 }
296
297 public int[] getFontBBox() {
298 return fontBBox;
299 }
300
301 public int getItalicAngle() {
302 return italicAngle;
303 }
304
305 public int getStemV() {
306 return stemV;
307 }
308
309 public int getFirstChar() {
310 return 0;
311 }
312
313 public int getLastChar() {
314 return 255;
315 }
316
317 public int width(int i, int size) {
318 if (isEmbeddable()) {
319 Integer idx = (Integer )usedGlyphsIndex.get(new Integer (i));
320 return size * width[idx.intValue()];
321 } else {
322 return size * width[i];
323 }
324 }
325
326 public int[] getWidths(int size) {
327 int[] arr = new int[width.length];
328 System.arraycopy(width, 0, arr, 0, width.length - 1);
329 for (int i = 0; i < arr.length; i++)
330 arr[i] *= size;
331 return arr;
332 }
333
334 public Integer reMap(Integer i) {
335 if (isEmbeddable()) {
336 Integer ret = (Integer )usedGlyphsIndex.get(i);
337 if (ret == null)
338 ret = i;
339 return ret;
340 } else {
341 return i;
342 }
343
344 }
345
346 public char mapChar(char c) {
347 int idx = (int)c;
348 int retIdx = 0;
349
350 for (int i = 0; (i < bfentries.length) && retIdx == 0; i++) {
351 if (bfentries[i].unicodeStart <= idx
352 && bfentries[i].unicodeEnd >= idx) {
353 retIdx = bfentries[i].glyphStartIndex + idx
354 - bfentries[i].unicodeStart;
355 }
356 }
357
358 if (isEmbeddable()) {
359 Integer newIdx = (Integer )usedGlyphs.get(new Integer (retIdx));
362 if (newIdx == null) {
363 usedGlyphs.put(new Integer (retIdx),
364 new Integer (usedGlyphsCount));
365 usedGlyphsIndex.put(new Integer (usedGlyphsCount),
366 new Integer (retIdx));
367 retIdx = usedGlyphsCount;
368 usedGlyphsCount++;
370 } else {
371 retIdx = newIdx.intValue();
372 }
373 }
374
375 return (char)retIdx;
376 }
377
378 }
379
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