Project

General

Profile

Patch #1170 » chinese.rb

patched chinese.rb file - Chaoqun Zou, 2008-05-04 18:08

 
1
# Copyright (c) 2006 4ssoM LLC <www.4ssoM.com>
2
# 1.12 contributed by Ed Moss.
3
#
4
# The MIT License
5
#
6
# Permission is hereby granted, free of charge, to any person obtaining a copy
7
# of this software and associated documentation files (the "Software"), to deal
8
# in the Software without restriction, including without limitation the rights
9
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10
# copies of the Software, and to permit persons to whom the Software is
11
# furnished to do so, subject to the following conditions:
12
#
13
# The above copyright notice and this permission notice shall be included in
14
# all copies or substantial portions of the Software.
15
#
16
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
19
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22
# THE SOFTWARE.
23
#
24
# This is direct port of chinese.php
25
#
26
# Chinese PDF support.
27
#
28
# Usage is as follows:
29
#
30
# require 'fpdf'
31
# require 'chinese'
32
# pdf = FPDF.new
33
# pdf.extend(PDF_Chinese)
34
#
35
# This allows it to be combined with other extensions, such as the bookmark
36
# module.
37

    
38
module PDF_Chinese
39

    
40
  Big5_widths={' '=>250,'!'=>250,'"'=>408,'#'=>668,''=>490,'%'=>875,'&'=>698,'\''=>250,
41
  	'('=>240,')'=>240,'*'=>417,'+'=>667,','=>250,'-'=>313,'.'=>250,'/'=>520,'0'=>500,'1'=>500,
42
  	'2'=>500,'3'=>500,'4'=>500,'5'=>500,'6'=>500,'7'=>500,'8'=>500,'9'=>500,':'=>250,''=>250,
43
  	'<'=>667,'='=>667,'>'=>667,'?'=>396,'@'=>921,'A'=>677,'B'=>615,'C'=>719,'D'=>760,'E'=>625,
44
  	'F'=>552,'G'=>771,'H'=>802,'I'=>354,'J'=>354,'K'=>781,'L'=>604,'M'=>927,'N'=>750,'O'=>823,
45
  	'P'=>563,'Q'=>823,'R'=>729,'S'=>542,'T'=>698,'U'=>771,'V'=>729,'W'=>948,'X'=>771,'Y'=>677,
46
  	'Z'=>635,'['=>344,'\\'=>520,']'=>344,'^'=>469,'_'=>500,'`'=>250,'a'=>469,'b'=>521,'c'=>427,
47
  	'd'=>521,'e'=>438,'f'=>271,'g'=>469,'h'=>531,'i'=>250,'j'=>250,'k'=>458,'l'=>240,'m'=>802,
48
  	'n'=>531,'o'=>500,'p'=>521,'q'=>521,'r'=>365,'s'=>333,'t'=>292,'u'=>521,'v'=>458,'w'=>677,
49
  	'x'=>479,'y'=>458,'z'=>427,'{'=>480,'|'=>496,'end'=>480,'~'=>667}
50

    
51
  GB_widths={' '=>207,'!'=>270,'"'=>342,'#'=>467,''=>462,'%'=>797,'&'=>710,'\''=>239,
52
  	'('=>374,')'=>374,'*'=>423,'+'=>605,','=>238,'-'=>375,'.'=>238,'/'=>334,'0'=>462,'1'=>462,
53
  	'2'=>462,'3'=>462,'4'=>462,'5'=>462,'6'=>462,'7'=>462,'8'=>462,'9'=>462,':'=>238,''=>238,
54
  	'<'=>605,'='=>605,'>'=>605,'?'=>344,'@'=>748,'A'=>684,'B'=>560,'C'=>695,'D'=>739,'E'=>563,
55
  	'F'=>511,'G'=>729,'H'=>793,'I'=>318,'J'=>312,'K'=>666,'L'=>526,'M'=>896,'N'=>758,'O'=>772,
56
  	'P'=>544,'Q'=>772,'R'=>628,'S'=>465,'T'=>607,'U'=>753,'V'=>711,'W'=>972,'X'=>647,'Y'=>620,
57
  	'Z'=>607,'['=>374,'\\'=>333,']'=>374,'^'=>606,'_'=>500,'`'=>239,'a'=>417,'b'=>503,'c'=>427,
58
  	'd'=>529,'e'=>415,'f'=>264,'g'=>444,'h'=>518,'i'=>241,'j'=>230,'k'=>495,'l'=>228,'m'=>793,
59
  	'n'=>527,'o'=>524,'p'=>524,'q'=>504,'r'=>338,'s'=>336,'t'=>277,'u'=>517,'v'=>450,'w'=>652,
60
  	'x'=>466,'y'=>452,'z'=>407,'{'=>370,'|'=>258,'end'=>370,'~'=>605}
61

    
62
  def AddCIDFont(family,style,name,cw,cMap,registry)
63
#ActionController::Base::logger.debug registry.to_a.join(":").to_s
64
  	fontkey=family.downcase+style.upcase
65
  	unless @fonts[fontkey].nil?
66
  		Error("Font already added: family style")
67
		end
68
  	i=@fonts.length+1
69
  	name=name.gsub(' ','')
70
    @fonts[fontkey]={'i'=>i,'type'=>'Type0','name'=>name,'up'=>-130,'ut'=>40,'cw'=>cw, 'CMap'=>cMap,'registry'=>registry}
71
  end
72

    
73
  def AddCIDFonts(family,name,cw,cMap,registry)
74
  	AddCIDFont(family,'',name,cw,cMap,registry)
75
  	AddCIDFont(family,'B',name+',Bold',cw,cMap,registry)
76
  	AddCIDFont(family,'I',name+',Italic',cw,cMap,registry)
77
  	AddCIDFont(family,'BI',name+',BoldItalic',cw,cMap,registry)
78
  end
79

    
80
  def AddBig5Font(family='Big5',name='MSungStd-Light-Acro')
81
  	#Add Big5 font with proportional Latin
82
  	cw=Big5_widths
83
  	cMap='ETenms-B5-H'
84
  	registry={'ordering'=>'CNS1','supplement'=>0}
85
#ActionController::Base::logger.debug registry.to_a.join(":").to_s
86
  	AddCIDFonts(family,name,cw,cMap,registry)
87
  end
88

    
89
  def AddBig5hwFont(family='Big5-hw',name='MSungStd-Light-Acro')
90
  	#Add Big5 font with half-witdh Latin
91
    cw = {}
92
    32.upto(126) do |i|
93
  		cw[i.chr]=500
94
		end
95
  	cMap='ETen-B5-H'
96
  	registry={'ordering'=>'CNS1','supplement'=>0}
97
  	AddCIDFonts(family,name,cw,cMap,registry)
98
  end
99

    
100
  def AddGBFont(family='GB',name='STSongStd-Light-Acro')
101
  	#Add GB font with proportional Latin
102
  	cw=GB_widths
103
  	cMap='GBKp-EUC-H'
104
  	registry={'ordering'=>'GB1','supplement'=>2}
105
  	AddCIDFonts(family,name,cw,cMap,registry)
106
  end
107

    
108
  def AddGBhwFont(family='GB-hw',name='STSongStd-Light-Acro')
109
  	#Add GB font with half-width Latin
110
    32.upto(126) do |i|
111
  		cw[i.chr]=500
112
		end
113
  	cMap='GBK-EUC-H'
114
  	registry={'ordering'=>'GB1','supplement'=>2}
115
  	AddCIDFonts(family,name,cw,cMap,registry)
116
  end
117

    
118
  def GetStringWidth(s)
119
  	if(@CurrentFont['type']=='Type0')
120
  		return GetMBStringWidth(s)
121
  	else
122
  		return super(s)
123
		end
124
  end
125

    
126
  def GetMBStringWidth(s)
127
  	#Multi-byte version of GetStringWidth()
128
  	l=0
129
  	cw=@CurrentFont['cw']
130
  	nb=s.length
131
  	i=0
132
  	while(i<nb)
133
  		c=s[i]
134
  		if(c<128)
135
  			l+=cw[c.chr] if cw[c.chr]
136
  			i+=1
137
  		else
138
  			l+=1000
139
  			i+=2
140
  		end
141
  	end
142
  	return l*@FontSize/1000
143
  end
144

    
145
  def MultiCell(w,h,txt,border=0,align='L',fill=0)
146
  	if(@CurrentFont['type']=='Type0')
147
  		MBMultiCell(w,h,txt,border,align,fill)
148
  	else
149
  		super(w,h,txt,border,align,fill)
150
		end
151
  end
152

    
153
  def MBMultiCell(w,h,txt,border=0,align='L',fill=0)
154
  	#Multi-byte version of MultiCell()
155
  	cw=@CurrentFont['cw']
156
  	if(w==0)
157
  		w=@w-@rMargin-@x
158
		end
159
  	wmax=(w-2*@cMargin)*1000/@FontSize
160
  	s=txt.gsub("\r",'')
161
  	nb=s.length
162
  	if(nb>0 and s[nb-1]=="\n")
163
  		nb-=1
164
		end
165
  	b=0
166
  	if(border)
167
  		if(border==1)
168
  			border='LTRB'
169
  			b='LRT'
170
  			b2='LR'
171
  		else
172
  			b2=''
173
  			if(border.to_s.index('L'))
174
  				b2+='L'
175
				end
176
  			if(border.to_s.index('R'))
177
  				b2+='R'
178
				end
179
  			b=border.to_s.index('T') ? b2+'T' : b2
180
  		end
181
  	end
182
  	sep=-1
183
  	i=0
184
  	j=0
185
  	l=0
186
  	nl=1
187
  	while(i<nb)
188
  		#Get next character
189
  		c=s[i]
190
  		#Check if ASCII or MB
191
  		ascii=(c<128)
192
  		if(c.chr=="\n")
193
  			#Explicit line break
194
  			Cell(w,h,s[j,i-j],b,2,align,fill)
195
  			i+=1
196
  			sep=-1
197
  			j=i
198
  			l=0
199
  			nl+=1
200
  			if(border and nl==2)
201
  				b=b2
202
				end
203
  			next
204
  		end
205
  		if(!ascii)
206
  			sep=i
207
  			ls=l
208
  		elsif(c==' ')
209
  			sep=i
210
  			ls=l
211
  		end
212
  		l+=ascii ? (cw[c.chr] || 0) : 1100
213
  		if(l>wmax)
214
  			#Automatic line break
215
  			if(sep==-1 or i==j)
216
  				if(i==j)
217
  					i+=ascii ? 1 : 3
218
					end
219
  				Cell(w,h,s[j,i-j],b,2,align,fill)
220
  			else
221
  				Cell(w,h,s[j,sep-j],b,2,align,fill)
222
  				i=(s[sep]==' ') ? sep+1 : sep
223
  			end
224
  			sep=-1
225
  			j=i
226
  			l=0
227
#  			nl+=1
228
  			if(border and nl==2)
229
  				b=b2
230
  			end
231
  		else
232
  			i+=ascii ? 1 : 3
233
  		end
234
  	end
235
  	#Last chunk
236
  	if(border and not border.to_s.index('B').nil?)
237
  		b+='B'
238
		end
239
  	Cell(w,h,s[j,i-j],b,2,align,fill)
240
  	@x=@lMargin
241
  end
242

    
243
  def Write(h,txt,link='')
244
  	if(@CurrentFont['type']=='Type0')
245
  		MBWrite(h,txt,link)
246
  	else
247
  		super(h,txt,link)
248
		end
249
  end
250

    
251
  def MBWrite(h,txt,link)
252
  	#Multi-byte version of Write()
253
  	cw=@CurrentFont['cw']
254
  	w=@w-@rMargin-@x
255
  	wmax=(w-2*@cMargin)*1000/@FontSize
256
  	s=txt.gsub("\r",'')
257
  	nb=s.length
258
  	sep=-1
259
  	i=0
260
  	j=0
261
  	l=0
262
  	nl=1
263
  	while(i<nb)
264
  		#Get next character
265
  		c=s[i]
266
  		#Check if ASCII or MB
267
  		ascii=(c<128)
268
  		if(c.chr=="\n")
269
  			#Explicit line break
270
  			Cell(w,h,s[j,i-j],0,2,'',0,link)
271
  			i+=1
272
  			sep=-1
273
  			j=i
274
  			l=0
275
  			if(nl==1)
276
  				@x=@lMargin
277
  				w=@w-@rMargin-@x
278
  				wmax=(w-2*@cMargin)*1000/@FontSize
279
  			end
280
  			nl+=1
281
  			next
282
  		end
283
  		if(!ascii or c==' ')
284
  			sep=i
285
			end
286
  		l+=ascii ? cw[c.chr] : 1100
287
  		if(l>wmax)
288
  			#Automatic line break
289
  			if(sep==-1 or i==j)
290
  				if(@x>@lMargin)
291
  					#Move to next line
292
  					@x=@lMargin
293
  					@y+=h
294
  					w=@w-@rMargin-@x
295
  					wmax=(w-2*@cMargin)*1000/@FontSize
296
  					i+=1
297
  					nl+=1
298
  					next
299
  				end
300
  				if(i==j)
301
  					i+=ascii ? 1 : 3
302
					end
303
  				Cell(w,h,s[j,i-j],0,2,'',0,link)
304
  			else
305
  				Cell(w,h,s[j,sep-j],0,2,'',0,link)
306
  				i=(s[sep]==' ') ? sep+1 : sep
307
  			end
308
  			sep=-1
309
  			j=i
310
  			l=0
311
  			if(nl==1)
312
  				@x=@lMargin
313
  				w=@w-@rMargin-@x
314
  				wmax=(w-2*@cMargin)*1000/@FontSize
315
  			end
316
  			nl+=1
317
  		else
318
  			i+=ascii ? 1 : 3
319
			end
320
  	end
321
  	#Last chunk
322
  	if(i!=j)
323
  		Cell(l/1000*@FontSize,h,s[j,i-j],0,0,'',0,link)
324
		end
325
  end
326

    
327
private
328

    
329
  def putfonts()
330
  	nf=@n
331
    @diffs.each do |diff|
332
  		#Encodings
333
  		newobj()
334
  		out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['+diff+']>>')
335
  		out('endobj')
336
  	end
337
  	# mqr=get_magic_quotes_runtime()
338
  	# set_magic_quotes_runtime(0)
339
    @FontFiles.each_pair do |file, info|
340
  		#Font file embedding
341
  		newobj()
342
  		@FontFiles[file]['n']=@n
343
  		if(defined('FPDF_FONTPATH'))
344
  			file=FPDF_FONTPATH+file
345
			end
346
  		size=filesize(file)
347
  		if(!size)
348
  			Error('Font file not found')
349
			end
350
  		out('<</Length '+size)
351
  		if(file[-2]=='.z')
352
  			out('/Filter /FlateDecode')
353
			end
354
  		out('/Length1 '+info['length1'])
355
  		unless info['length2'].nil?
356
  			out('/Length2 '+info['length2']+' /Length3 0')
357
			end
358
  		out('>>')
359
  		f=fopen(file,'rb')
360
  		putstream(fread(f,size))
361
  		fclose(f)
362
  		out('endobj')
363
  	end
364
#
365
  	# set_magic_quotes_runtime(mqr)
366
#
367
    @fonts.each_pair do |k, font|
368
  		#Font objects
369
  		newobj()
370
  		@fonts[k]['n']=@n
371
  		out('<</Type /Font')
372
  		if(font['type']=='Type0')
373
  			putType0(font)
374
  		else
375
  			name=font['name']
376
  			out('/BaseFont /'+name)
377
  			if(font['type']=='core')
378
  				#Standard font
379
  				out('/Subtype /Type1')
380
  				if(name!='Symbol' and name!='ZapfDingbats')
381
  					out('/Encoding /WinAnsiEncoding')
382
  			end
383
  			else
384
  				#Additional font
385
  				out('/Subtype /'+font['type'])
386
  				out('/FirstChar 32')
387
  				out('/LastChar 255')
388
  				out('/Widths '+(@n+1)+' 0 R')
389
  				out('/FontDescriptor '+(@n+2)+' 0 R')
390
  				if(font['enc'])
391
  					if !font['diff'].nil?
392
  						out('/Encoding '+(nf+font['diff'])+' 0 R')
393
  					else
394
  						out('/Encoding /WinAnsiEncoding')
395
  					end
396
  				end
397
  			end
398
  			out('>>')
399
  			out('endobj')
400
  			if(font['type']!='core')
401
  				#Widths
402
  				newobj()
403
  				cw=font['cw']
404
  				s='['
405
          32.upto(255) do |i|
406
  					s+=cw[i.chr]+' '
407
  				end
408
  				out(s+']')
409
  				out('endobj')
410
  				#Descriptor
411
  				newobj()
412
  				s='<</Type /FontDescriptor /FontName /'+name
413
  				font['desc'].each_pair do |k, v|
414
  					s+=' /'+k+' '+v
415
  				end
416
  				file=font['file']
417
  				if(file)
418
  					s+=' /FontFile'+(font['type']=='Type1' ? '' : '2')+' '+@FontFiles[file]['n']+' 0 R'
419
  				end
420
  				out(s+'>>')
421
  				out('endobj')
422
  			end
423
  		end
424
  	end
425
  end
426

    
427
  def putType0(font)
428
  	#Type0
429
  	out('/Subtype /Type0')
430
  	out('/BaseFont /'+font['name']+'-'+font['CMap'])
431
  	out('/Encoding /'+font['CMap'])
432
  	out('/DescendantFonts ['+(@n+1).to_s+' 0 R]')
433
  	out('>>')
434
  	out('endobj')
435
  	#CIDFont
436
  	newobj()
437
  	out('<</Type /Font')
438
  	out('/Subtype /CIDFontType0')
439
  	out('/BaseFont /'+font['name'])
440
  	out('/CIDSystemInfo <</Registry '+textstring('Adobe')+' /Ordering '+textstring(font['registry']['ordering'])+' /Supplement '+font['registry']['supplement'].to_s+'>>')
441
  	out('/FontDescriptor '+(@n+1).to_s+' 0 R')
442
  	if(font['CMap']=='ETen-B5-H')
443
  		w='13648 13742 500'
444
  	elsif(font['CMap']=='GBK-EUC-H')
445
  		w='814 907 500 7716 [500]'
446
  	else
447
      # ActionController::Base::logger.debug font['cw'].keys.sort.join(' ').to_s
448
      # ActionController::Base::logger.debug font['cw'].values.join(' ').to_s
449
  		w='1 ['
450
  		font['cw'].keys.sort.each {|key|
451
  		  w+=font['cw'][key].to_s + " "
452
# ActionController::Base::logger.debug key.to_s
453
# ActionController::Base::logger.debug font['cw'][key].to_s
454
  		}
455
  		w +=']'
456
  	end
457
  	out('/W ['+w+']>>')
458
  	out('endobj')
459
  	#Font descriptor
460
  	newobj()
461
  	out('<</Type /FontDescriptor')
462
  	out('/FontName /'+font['name'])
463
  	out('/Flags 6')
464
  	out('/FontBBox [0 -200 1000 900]')
465
  	out('/ItalicAngle 0')
466
  	out('/Ascent 800')
467
  	out('/Descent -200')
468
  	out('/CapHeight 800')
469
  	out('/StemV 50')
470
  	out('>>')
471
  	out('endobj')
472
  end
473
end
(3-3/3)