使用 ReportLab 2.7、Python 2.7:
我可以在目录 (toc) 中创建一个带有可点击书签的 pdf,或者我可以创建一个带有“x of y”页码的 pdf,但是当我尝试同时执行这两种操作时,书签页(键)似乎会中断。
示例代码:
class MyDocTemplate(BaseDocTemplate):
def __init__(self, filename, **kw):
self.allowSplitting = 0
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):
if isinstance(flowable, Paragraph):
txt = flowable.getPlainText()
style = flowable.style.name
if style == 'Heading1':
key = 'h1-%s' % self.seq.nextf('heading1')
self.canv.bookmarkPage(key)
self.notify('TOCEntry', (0, txt, self.page))
elif style == 'Heading2':
key = 'h2-%s' % self.seq.nextf('heading2')
print key
self.canv.bookmarkPage(key)
self.notify('TOCEntry', (1, txt, self.page, key))
class NumberedCanvas(canvas.Canvas):
def __init__(self, *args, **kwargs):
canvas.Canvas.__init__(self, *args, **kwargs)
self._saved_page_states = []
def showPage(self):
self._saved_page_states.append(dict(self.__dict__))
self._startPage()
def save(self):
"""add page info to each page (page x of y)"""
num_pages = len(self._saved_page_states)
for state in self._saved_page_states:
self.__dict__.update(state)
self.draw_page_number(num_pages)
canvas.Canvas.showPage(self)
canvas.Canvas.save(self)
def draw_page_number(self, page_count):
self.setFont('Times-Bold',14)
self.drawRightString(7.6*inch,.5*inch,
"Page %d of %d" % (self._pageNumber, page_count))
h1 = PS(name = 'Heading1',
fontSize = 14,
leading = 16)
h2 = PS(name = 'Heading2',
fontSize = 12,
leading = 14,
leftIndent = 25)
#Build story.
story = []
toc = TableOfContents()
#For conciseness, using the same styles for headings and TOC entries
toc.levelStyles = [h1, h2]
story.append(toc)
story.append(PageBreak())
story.append(Paragraph('First heading', h1))
story.append(Paragraph('Text in first heading', PS('body')))
story.append(Paragraph('First sub heading', h2))
story.append(Paragraph('Text in first sub heading', PS('body')))
story.append(PageBreak())
story.append(Paragraph('Second sub heading', h2))
story.append(Paragraph('Text in second sub heading', PS('body')))
story.append(Paragraph('Last heading', h1))
doc = MyDocTemplate("mypdf.pdf")
doc.multiBuild(story, canvasmaker=NumberedCanvas)
任何意见将不胜感激。