FattView/fpdf/attic/Bookmark.py


from FPDF import *

class Bookmark(FPDF):
    def __init__(this,orientation='P',unit='mm',format='A4'):
        FPDF.__init__(this,orientation,unit,format)
        this.outlines=[]
        this.OutlineRoot=None

    def Bookmark(this,txt,level=0,y=0):
        if(y==-1):
            y=this.GetY()
        this.outlines+=[{'t':txt,'l':level,'y':y,'p':this.PageNo()}]

    def _putbookmarks(this):
        nb=count(this.outlines)
        if(nb==0):
            return
        lru={}
        level=0
        for i in range(len(this.outlines)):
            o=this.outlines[i]
            if(o['l']>0):
                parent=lru[o['l']-1]
                #Set parent and last pointers
                this.outlines[i]['parent']=parent
                this.outlines[parent]['last']=i
                if(o['l']>level):
                    #Level increasing: set first pointer
                    this.outlines[parent]['first']=i
            else:
                this.outlines[i]['parent']=nb
            if(o['l']<=level and i>0):
                #Set prev and next pointers
                prev=lru[o['l']]
                this.outlines[prev]['next']=i
                this.outlines[i]['prev']=prev
            lru[o['l']]=i
            level=o['l']
        #Outline items
        n=this.n+1
        for i in range(len(this.outlines)):
            o=this.outlines[i]
            this._newobj()
            this._out('<</Title '+this._textstring(o['t']))
            this._out('/Parent '+str(n+o['parent'])+' 0 R')
            if 'prev' in o:
                this._out('/Prev '+str(n+o['prev'])+' 0 R')
            if 'next' in o:
                this._out('/Next '+str(n+o['next'])+' 0 R')
            if 'first' in o:
                this._out('/First '+str(n+o['first'])+' 0 R')
            if 'last' in o:
                this._out('/Last '+str(n+o['last'])+' 0 R')
            this._out(sprintf('/Dest [%d 0 R /XYZ 0 %.2f null]',1+2*o['p'],(this.h-o['y'])*this.k))
            this._out('/Count 0>>')
            this._out('endobj')
        #Outline root
        this._newobj()
        this.OutlineRoot=this.n
        this._out('<</Type /Outlines /First '+str(n)+' 0 R')
        this._out('/Last '+str(n+lru[0])+' 0 R>>')
        this._out('endobj')


    def _putresources(this):
        FPDF._putresources(this)
        this._putbookmarks()

    def _putcatalog(this):
        FPDF._putcatalog(this)
        if(count(this.outlines)>0):
            this._out('/Outlines '+str(this.OutlineRoot)+' 0 R')
            this._out('/PageMode /UseOutlines')