[reportlab-users] Help

[Prabhakar Moka]

Hi,

I am using Reportlab 2.7 with Python2.7.11 to generate *PDF file with page
number and table of contents clickable*.

I am able to  create a pdf with clickable bookmarks in the table of
contents (toc) and  created a pdf with "x of y" page numbering also.

Here my problem is  bookmarkpage(key) appears to break when I try to do
both. Please check attached "clickcheck.py" file code which I am using.

Please help me to resolve this.

Thanks,
Prabhakar
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from  reportlab.lib.styles import ParagraphStyle as PS
from  reportlab.platypus import PageBreak
from  reportlab.platypus.paragraph import Paragraph
from  reportlab.platypus.doctemplate import PageTemplate, BaseDocTemplate
from  reportlab.platypus.tableofcontents import TableOfContents
from  reportlab.platypus.frames import Frame
from  reportlab.lib.units import cm
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import LETTER

class FooterCanvas(canvas.Canvas):

    def __init__(self, *args, **kwargs):
        canvas.Canvas.__init__(self, *args, **kwargs)
        self.pages = []

    def showPage(self):
        self.pages.append(dict(self.__dict__))
        self._startPage()

    def save(self):
        page_count = len(self.pages)
        for page in self.pages:
            self.__dict__.update(page)
            self.draw_canvas(page_count)
            canvas.Canvas.showPage(self)
        canvas.Canvas.save(self)

    def draw_canvas(self, page_count):
        page = "Page %s of %s" % (self._pageNumber, page_count)
        x = 128
        self.saveState()
        self.setStrokeColorRGB(0, 0, 0)
        self.setLineWidth(0.5)
        self.line(66, 78, LETTER[0] - 66, 78)
        self.setFont('Times-Roman', 10)
        self.drawString(LETTER[0]-x, 65, page)
        self.restoreState()

class MyDocTemplate(BaseDocTemplate):
    def __init__(self, filename, **kw):
        self.allowSplitting = 0
        apply(BaseDocTemplate.__init__, (self, filename), kw)
        template = PageTemplate('normal', [Frame(2.5*cm, 2.5*cm, 15*cm, 25*cm, id='F1')])
        self.addPageTemplates(template)

   

    def afterFlowable(self, flowable):
        "Registers TOC entries."
        if flowable.__class__.__name__ == 'Paragraph':
            text = flowable.getPlainText()
            style = flowable.style.name
            if style == 'Heading1':
                level = 0
            elif style == 'Heading2':
                level = 1
            else:
                return
            E = [level, text, self.page]
            #if we have a bookmark name append that to our notify data
            bn = getattr(flowable,'_bookmarkName',None)
            if bn is not None: E.append(bn)
            self.notify('TOCEntry', tuple(E))

centered = PS(name = 'centered', fontSize = 30,leading = 16, alignment = 1,spaceAfter = 20)

h1 = PS(name = 'Heading1',fontSize = 14,leading = 16)
h2 = PS(name = 'Heading2',fontSize = 12,leading = 14)


# Build story.
story = []

# Create an instance of TableOfContents. Override the level styles (optional)
# and add the object to the story

toc = TableOfContents()
toc.levelStyles = [
    PS(fontName='Times-Bold', fontSize=20, name='TOCHeading1', leftIndent=20, firstLineIndent=-20, spaceBefore=10, leading=16),
    PS(fontSize=18, name='TOCHeading2', leftIndent=40, firstLineIndent=-20, spaceBefore=5, leading=12),
]
story.append(Paragraph('<b>Table of contents</b>', centered))
story.append(toc)


#this function makes our headings
def doHeading(text,sty):
    from hashlib import sha1
    #create bookmarkname
    bn=sha1(text+sty.name).hexdigest()
    #modify paragraph text to include an anchor point with name bn
    h=Paragraph(text+'<a name="%s"/>' % bn,sty)
    #store the bookmark name on the flowable so afterFlowable can see this
    h._bookmarkName=bn
    story.append(h)

#story.append(Paragraph('<b>Table of contents</b>', centered))
story.append(PageBreak())
doHeading('First heading', h1)
story.append(Paragraph('Text in first heading', PS('body')))
doHeading('First sub heading', h2)
story.append(Paragraph('Text in first sub heading', PS('body')))
story.append(PageBreak())
doHeading('Second sub heading', h2)
story.append(Paragraph('Text in second sub heading', PS('body')))
story.append(PageBreak())
doHeading('Last heading', h1)
story.append(Paragraph('Text in last heading', PS('body')))
doc = MyDocTemplate('mintoc.pdf')
doc.multiBuild(story, canvasmaker = FooterCanvas)