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Redmine/vendor/plugins/rfpdf/lib/fpdf/chinese.rb

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# Copyright (c) 2006 4ssoM LLC <www.4ssoM.com>
# 1.12 contributed by Ed Moss.
#
# The MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# This is direct port of chinese.php
#
# Chinese PDF support.
#
# Usage is as follows:
#
# require 'fpdf'
# require 'chinese'
# pdf = FPDF.new
# pdf.extend(PDF_Chinese)
#
# This allows it to be combined with other extensions, such as the bookmark
# module.
module PDF_Chinese
Big5_widths={' '=>250,'!'=>250,'"'=>408,'#'=>668,'$'=>490,'%'=>875,'&'=>698,'\''=>250,
'('=>240,')'=>240,'*'=>417,'+'=>667,','=>250,'-'=>313,'.'=>250,'/'=>520,'0'=>500,'1'=>500,
'2'=>500,'3'=>500,'4'=>500,'5'=>500,'6'=>500,'7'=>500,'8'=>500,'9'=>500,':'=>250,';'=>250,
'<'=>667,'='=>667,'>'=>667,'?'=>396,'@'=>921,'A'=>677,'B'=>615,'C'=>719,'D'=>760,'E'=>625,
'F'=>552,'G'=>771,'H'=>802,'I'=>354,'J'=>354,'K'=>781,'L'=>604,'M'=>927,'N'=>750,'O'=>823,
'P'=>563,'Q'=>823,'R'=>729,'S'=>542,'T'=>698,'U'=>771,'V'=>729,'W'=>948,'X'=>771,'Y'=>677,
'Z'=>635,'['=>344,'\\'=>520,']'=>344,'^'=>469,'_'=>500,'`'=>250,'a'=>469,'b'=>521,'c'=>427,
'd'=>521,'e'=>438,'f'=>271,'g'=>469,'h'=>531,'i'=>250,'j'=>250,'k'=>458,'l'=>240,'m'=>802,
'n'=>531,'o'=>500,'p'=>521,'q'=>521,'r'=>365,'s'=>333,'t'=>292,'u'=>521,'v'=>458,'w'=>677,
'x'=>479,'y'=>458,'z'=>427,'{'=>480,'|'=>496,'}'=>480,'~'=>667}
GB_widths={' '=>207,'!'=>270,'"'=>342,'#'=>467,'$'=>462,'%'=>797,'&'=>710,'\''=>239,
'('=>374,')'=>374,'*'=>423,'+'=>605,','=>238,'-'=>375,'.'=>238,'/'=>334,'0'=>462,'1'=>462,
'2'=>462,'3'=>462,'4'=>462,'5'=>462,'6'=>462,'7'=>462,'8'=>462,'9'=>462,':'=>238,';'=>238,
'<'=>605,'='=>605,'>'=>605,'?'=>344,'@'=>748,'A'=>684,'B'=>560,'C'=>695,'D'=>739,'E'=>563,
'F'=>511,'G'=>729,'H'=>793,'I'=>318,'J'=>312,'K'=>666,'L'=>526,'M'=>896,'N'=>758,'O'=>772,
'P'=>544,'Q'=>772,'R'=>628,'S'=>465,'T'=>607,'U'=>753,'V'=>711,'W'=>972,'X'=>647,'Y'=>620,
'Z'=>607,'['=>374,'\\'=>333,']'=>374,'^'=>606,'_'=>500,'`'=>239,'a'=>417,'b'=>503,'c'=>427,
'd'=>529,'e'=>415,'f'=>264,'g'=>444,'h'=>518,'i'=>241,'j'=>230,'k'=>495,'l'=>228,'m'=>793,
'n'=>527,'o'=>524,'p'=>524,'q'=>504,'r'=>338,'s'=>336,'t'=>277,'u'=>517,'v'=>450,'w'=>652,
'x'=>466,'y'=>452,'z'=>407,'{'=>370,'|'=>258,'}'=>370,'~'=>605}
def AddCIDFont(family,style,name,cw,cMap,registry)
#ActionController::Base::logger.debug registry.to_a.join(":").to_s
fontkey=family.downcase+style.upcase
unless @fonts[fontkey].nil?
Error("Font already added: family style")
end
i=@fonts.length+1
name=name.gsub(' ','')
@fonts[fontkey]={'i'=>i,'type'=>'Type0','name'=>name,'up'=>-130,'ut'=>40,'cw'=>cw, 'CMap'=>cMap,'registry'=>registry}
end
def AddCIDFonts(family,name,cw,cMap,registry)
AddCIDFont(family,'',name,cw,cMap,registry)
AddCIDFont(family,'B',name+',Bold',cw,cMap,registry)
AddCIDFont(family,'I',name+',Italic',cw,cMap,registry)
AddCIDFont(family,'BI',name+',BoldItalic',cw,cMap,registry)
end
def AddBig5Font(family='Big5',name='MSungStd-Light-Acro')
#Add Big5 font with proportional Latin
cw=Big5_widths
cMap='ETenms-B5-H'
registry={'ordering'=>'CNS1','supplement'=>0}
#ActionController::Base::logger.debug registry.to_a.join(":").to_s
AddCIDFonts(family,name,cw,cMap,registry)
end
def AddBig5hwFont(family='Big5-hw',name='MSungStd-Light-Acro')
#Add Big5 font with half-witdh Latin
cw = {}
32.upto(126) do |i|
cw[i.chr]=500
end
cMap='ETen-B5-H'
registry={'ordering'=>'CNS1','supplement'=>0}
AddCIDFonts(family,name,cw,cMap,registry)
end
def AddGBFont(family='GB',name='STSongStd-Light-Acro')
#Add GB font with proportional Latin
cw=GB_widths
cMap='GBKp-EUC-H'
registry={'ordering'=>'GB1','supplement'=>2}
AddCIDFonts(family,name,cw,cMap,registry)
end
def AddGBhwFont(family='GB-hw',name='STSongStd-Light-Acro')
#Add GB font with half-width Latin
32.upto(126) do |i|
cw[i.chr]=500
end
cMap='GBK-EUC-H'
registry={'ordering'=>'GB1','supplement'=>2}
AddCIDFonts(family,name,cw,cMap,registry)
end
def GetStringWidth(s)
if(@current_font['type']=='Type0')
return GetMBStringWidth(s)
else
return super(s)
end
end
def GetMBStringWidth(s)
#Multi-byte version of GetStringWidth()
l=0
cw=@current_font['cw']
nb=s.length
i=0
while(i<nb)
c = s[i].is_a?(String) ? s[i].ord : s[i]
if(c<128)
l+=cw[c.chr] if cw[c.chr]
i+=1
else
l+=1000
i+=2
end
end
return l*@font_size/1000
end
def MultiCell(w,h,txt,border=0,align='L',fill=0,ln=1)
if(@current_font['type']=='Type0')
MBMultiCell(w,h,txt,border,align,fill,ln)
else
super(w,h,txt,border,align,fill,ln)
end
end
def MBMultiCell(w,h,txt,border=0,align='L',fill=0,ln=1)
# save current position
prevx = @x;
prevy = @y;
#Multi-byte version of MultiCell()
cw=@current_font['cw']
if(w==0)
w=@w-@r_margin-@x
end
wmax=(w-2*@c_margin)*1000/@font_size
s=txt.gsub("\r",'')
nb=s.length
if(nb>0 and s[nb-1]=="\n")
nb-=1
end
b=0
if(border)
if(border==1)
border='LTRB'
b='LRT'
b2='LR'
else
b2=''
b2='L' unless border.to_s.index('L').nil?
b2=b2+'R' unless border.to_s.index('R').nil?
b=(border.to_s.index('T')) ? (b2+'T') : b2
end
end
sep=-1
i=0
j=0
l=0
nl=1
while(i<nb)
#Get next character
c = s[i].is_a?(String) ? s[i].ord : s[i]
#Check if ASCII or MB
ascii=(c<128)
if(c.chr=="\n")
#Explicit line break
Cell(w,h,s[j,i-j],b,2,align,fill)
i+=1
sep=-1
j=i
l=0
nl+=1
if(border and nl==2)
b=b2
end
next
end
if(!ascii)
sep=i
ls=l
elsif(c.chr==' ')
sep=i
ls=l
end
l+=(ascii ? cw[c.chr] : 1000) || 0
if(l>wmax)
#Automatic line break
if(sep==-1 or i==j)
if(i==j)
i+=ascii ? 1 : 2
end
Cell(w,h,s[j,i-j],b,2,align,fill)
else
Cell(w,h,s[j,sep-j],b,2,align,fill)
i=(s[sep].chr==' ') ? sep+1 : sep
end
sep=-1
j=i
l=0
nl+=1
if(border and nl==2)
b=b2
end
else
i+=ascii ? 1 : 2
end
end
#Last chunk
if(border and not border.to_s.index('B').nil?)
b+='B'
end
Cell(w,h,s[j,i-j],b,2,align,fill)
# move cursor to specified position
if (ln == 1)
# go to the beginning of the next line
@x=@l_margin
elsif (ln == 0)
# go to the top-right of the cell
@y = prevy;
@x = prevx + w;
elsif (ln == 2)
# go to the bottom-left of the cell
@x = prevx;
end
end
def Write(h,txt,link='',fill=0)
if(@current_font['type']=='Type0')
MBWrite(h,txt,link,fill)
else
super(h,txt,link,fill)
end
end
def MBWrite(h,txt,link,fill=0)
#Multi-byte version of Write()
cw=@current_font['cw']
w=@w-@r_margin-@x
wmax=(w-2*@c_margin)*1000/@font_size
s=txt.gsub("\r",'')
nb=s.length
sep=-1
i=0
j=0
l=0
nl=1
while(i<nb)
#Get next character
c = s[i].is_a?(String) ? s[i].ord : s[i]
#Check if ASCII or MB
ascii=(c<128)
if(c.chr=="\n")
#Explicit line break
Cell(w,h,s[j,i-j],0,2,'',fill,link)
i+=1
sep=-1
j=i
l=0
if(nl==1)
@x=@l_margin
w=@w-@r_margin-@x
wmax=(w-2*@c_margin)*1000/@font_size
end
nl+=1
next
end
if(!ascii or c.chr==' ')
sep=i
end
l+=(ascii ? cw[c.chr] : 1000) || 0
if(l>wmax)
#Automatic line break
if(sep==-1 or i==j)
if(@x>@l_margin)
#Move to next line
@x=@l_margin
@y+=h
w=@w-@r_margin-@x
wmax=(w-2*@c_margin)*1000/@font_size
i+=1
nl+=1
next
end
if(i==j)
i+=ascii ? 1 : 2
end
Cell(w,h,s[j,i-j],0,2,'',fill,link)
else
Cell(w,h,s[j,sep-j],0,2,'',fill,link)
i=(s[sep].chr==' ') ? sep+1 : sep
end
sep=-1
j=i
l=0
if(nl==1)
@x=@l_margin
w=@w-@r_margin-@x
wmax=(w-2*@c_margin)*1000/@font_size
end
nl+=1
else
i+=ascii ? 1 : 2
end
end
#Last chunk
if(i!=j)
Cell(l*@font_size/1000.0,h,s[j,i-j],0,0,'',fill,link)
end
end
private
def putfonts()
nf=@n
@diffs.each do |diff|
#Encodings
newobj()
out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['+diff+']>>')
out('endobj')
end
# mqr=get_magic_quotes_runtime()
# set_magic_quotes_runtime(0)
@font_files.each_pair do |file, info|
#Font file embedding
newobj()
@font_files[file]['n']=@n
if(defined('FPDF_FONTPATH'))
file=FPDF_FONTPATH+file
end
size=filesize(file)
if(!size)
Error('Font file not found')
end
out('<</Length '+size)
if(file[-2]=='.z')
out('/Filter /FlateDecode')
end
out('/Length1 '+info['length1'])
unless info['length2'].nil?
out('/Length2 '+info['length2']+' /Length3 0')
end
out('>>')
f=fopen(file,'rb')
putstream(fread(f,size))
fclose(f)
out('endobj')
end
#
# set_magic_quotes_runtime(mqr)
#
@fonts.each_pair do |k, font|
#Font objects
newobj()
@fonts[k]['n']=@n
out('<</Type /Font')
if(font['type']=='Type0')
putType0(font)
else
name=font['name']
out('/BaseFont /'+name)
if(font['type']=='core')
#Standard font
out('/Subtype /Type1')
if(name!='Symbol' and name!='ZapfDingbats')
out('/Encoding /WinAnsiEncoding')
end
else
#Additional font
out('/Subtype /'+font['type'])
out('/FirstChar 32')
out('/LastChar 255')
out('/Widths '+(@n+1)+' 0 R')
out('/FontDescriptor '+(@n+2)+' 0 R')
if(font['enc'])
if !font['diff'].nil?
out('/Encoding '+(nf+font['diff'])+' 0 R')
else
out('/Encoding /WinAnsiEncoding')
end
end
end
out('>>')
out('endobj')
if(font['type']!='core')
#Widths
newobj()
cw=font['cw']
s='['
32.upto(255) do |i|
s+=cw[i.chr]+' '
end
out(s+']')
out('endobj')
#Descriptor
newobj()
s='<</Type /FontDescriptor /FontName /'+name
font['desc'].each_pair do |k, v|
s+=' /'+k+' '+v
end
file=font['file']
if(file)
s+=' /FontFile'+(font['type']=='Type1' ? '' : '2')+' '+@font_files[file]['n']+' 0 R'
end
out(s+'>>')
out('endobj')
end
end
end
end
def putType0(font)
#Type0
out('/Subtype /Type0')
out('/BaseFont /'+font['name']+'-'+font['CMap'])
out('/Encoding /'+font['CMap'])
out('/DescendantFonts ['+(@n+1).to_s+' 0 R]')
out('>>')
out('endobj')
#CIDFont
newobj()
out('<</Type /Font')
out('/Subtype /CIDFontType0')
out('/BaseFont /'+font['name'])
out('/CIDSystemInfo <</Registry '+textstring('Adobe')+' /Ordering '+textstring(font['registry']['ordering'])+' /Supplement '+font['registry']['supplement'].to_s+'>>')
out('/FontDescriptor '+(@n+1).to_s+' 0 R')
if(font['CMap']=='ETen-B5-H')
w='13648 13742 500'
elsif(font['CMap']=='GBK-EUC-H')
w='814 907 500 7716 [500]'
else
# ActionController::Base::logger.debug font['cw'].keys.sort.join(' ').to_s
# ActionController::Base::logger.debug font['cw'].values.join(' ').to_s
w='1 ['
font['cw'].keys.sort.each {|key|
w+=font['cw'][key].to_s + " "
# ActionController::Base::logger.debug key.to_s
# ActionController::Base::logger.debug font['cw'][key].to_s
}
w +=']'
end
out('/W ['+w+']>>')
out('endobj')
#Font descriptor
newobj()
out('<</Type /FontDescriptor')
out('/FontName /'+font['name'])
out('/Flags 6')
out('/FontBBox [0 -200 1000 900]')
out('/ItalicAngle 0')
out('/Ascent 800')
out('/Descent -200')
out('/CapHeight 800')
out('/StemV 50')
out('>>')
out('endobj')
end
end
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