100 lines
2.7 KiB
Ruby
100 lines
2.7 KiB
Ruby
|
# Translation of the bookmark class from the PHP FPDF script from Olivier Plathey
|
||
|
|
# Translated by Sylvain Lafleur and ?? with the help of Brian Ollenberger
|
||
|
|
#
|
||
|
|
# First added in 1.53b
|
||
|
|
#
|
||
|
|
# Usage is as follows:
|
||
|
|
#
|
||
|
|
# require 'fpdf'
|
||
|
|
# require 'bookmark'
|
||
|
|
# pdf = FPDF.new
|
||
|
|
# pdf.extend(PDF_Bookmark)
|
||
|
|
#
|
||
|
|
# This allows it to be combined with other extensions, such as the Chinese
|
||
|
|
# module.
|
||
|
|
|
||
|
|
module PDF_Bookmark
|
||
|
|
def PDF_Bookmark.extend_object(o)
|
||
|
|
o.instance_eval('@outlines,@OutlineRoot=[],0')
|
||
|
|
super(o)
|
||
|
|
end
|
||
|
|
|
||
|
|
def Bookmark(txt,level=0,y=0)
|
||
|
|
y=self.GetY() if y==-1
|
||
|
|
@outlines.push({'t'=>txt,'l'=>level,'y'=>y,'p'=>self.PageNo()})
|
||
|
|
end
|
||
|
|
|
||
|
|
def putbookmarks
|
||
|
|
@nb=@outlines.size
|
||
|
|
return if @nb==0
|
||
|
|
lru=[]
|
||
|
|
level=0
|
||
|
|
@outlines.each_index do |i|
|
||
|
|
o=@outlines[i]
|
||
|
|
if o['l']>0
|
||
|
|
parent=lru[o['l']-1]
|
||
|
|
# Set parent and last pointers
|
||
|
|
@outlines[i]['parent']=parent
|
||
|
|
@outlines[parent]['last']=i
|
||
|
|
if o['l']>level
|
||
|
|
# Level increasing: set first pointer
|
||
|
|
@outlines[parent]['first']=i
|
||
|
|
end
|
||
|
|
else
|
||
|
|
@outlines[i]['parent']=@nb
|
||
|
|
end
|
||
|
|
if o['l']<=level and i>0
|
||
|
|
# Set prev and next pointers
|
||
|
|
prev=lru[o['l']]
|
||
|
|
@outlines[prev]['next']=i
|
||
|
|
@outlines[i]['prev']=prev
|
||
|
|
end
|
||
|
|
lru[o['l']]=i
|
||
|
|
level=o['l']
|
||
|
|
end
|
||
|
|
# Outline items
|
||
|
|
n=@n+1
|
||
|
|
@outlines.each_index do |i|
|
||
|
|
o=@outlines[i]
|
||
|
|
newobj
|
||
|
|
out('<</Title '+(textstring(o['t'])))
|
||
|
|
out('/Parent '+(n+o['parent']).to_s+' 0 R')
|
||
|
|
if o['prev']
|
||
|
|
out('/Prev '+(n+o['prev']).to_s+' 0 R')
|
||
|
|
end
|
||
|
|
if o['next']
|
||
|
|
out('/Next '+(n+o['next']).to_s+' 0 R')
|
||
|
|
end
|
||
|
|
if o['first']
|
||
|
|
out('/First '+(n+o['first']).to_s+' 0 R')
|
||
|
|
end
|
||
|
|
if o['last']
|
||
|
|
out('/Last '+(n+o['last']).to_s+' 0 R')
|
||
|
|
end
|
||
|
|
out(sprintf('/Dest [%d 0 R /XYZ 0 %.2f
|
||
|
|
null]',1+2*o['p'],(@h-o['y'])*@k))
|
||
|
|
out('/Count 0>>')
|
||
|
|
out('endobj')
|
||
|
|
end
|
||
|
|
# Outline root
|
||
|
|
newobj
|
||
|
|
@OutlineRoot=@n
|
||
|
|
out('<</Type /Outlines /First '+n.to_s+' 0 R')
|
||
|
|
out('/Last '+(n+lru[0]).to_s+' 0 R>>')
|
||
|
|
out('endobj')
|
||
|
|
end
|
||
|
|
|
||
|
|
def putresources
|
||
|
|
super
|
||
|
|
putbookmarks
|
||
|
|
end
|
||
|
|
|
||
|
|
def putcatalog
|
||
|
|
super
|
||
|
|
if not @outlines.empty?
|
||
|
|
out('/Outlines '+@OutlineRoot.to_s+' 0 R')
|
||
|
|
out('/PageMode /UseOutlines')
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|