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用 python-reportlab 将 rst 转换为中文 PDF
Jiahua Huang <[email protected]> reply-to [email protected] to [email protected] date Sat, Aug 9, 2008 at 01:22
subject [CPyUG:61848] [:MiscItems/2008-08-08:Re: 简单使用 Reportlab 生成中文 PDF 文档]
{{{#rst
用 python-reportlab 将 rst 转换为中文 PDF
:Author: Jiahua Huang <[email protected]> :Keywords: RST, PDF :License: LGPL :Requires: docutils, reportlab
python 里用 Reportlab 应该比用 tex、docbook、fop 合适， 不过 python-reportlab 默认没中文字体，也没中文换行，
分析
实际上新的 python-reportlab 已经有能力处理中文字体，也有了一个基本的 **CJK Warp** (breakLinesCJK)，只是通常使用 python-reportlab 的程序都没有去注意。
现有 reportlab 程序主要问题就是::
- 使用默认英文字体，而没考虑中文字
- 使用默认英文折行，而没考虑中文长行
解决 ====
那么，针对现有问题，可以考虑如下方向解决:
+
+
+ | **问题** | **解决** | +====================+========================================+ | 没有中文字体 | 注册中文字体文泉驿正黑 | +
+
+ | 默认不是中文字体 | 覆盖选字处理，一律用文泉驿正黑 | +
+
+ | 默认不是 CJK 换行 | 覆盖折行处理，一律尝试 breakLinesCJK | +
+
+
动手吧
拿把斧头直接砍 python-reportlab 当然省事， 不过系统的库修改了以后维护还真是麻烦，能不能不修改库本身呢？
既然 Python 是动态语言，可以运行中动态修改几乎一切东西， 那么运行时修改 reportlab 的类吧，只要在最终调用 reportlab 生成 PDF 前动态修改到自己要的就行
注册字体 ========
因为主要是自己用，就硬编码使用自己喜欢的文泉驿正黑字体吧，
用 reportlab.pdfbase.pdfmetrics.registerFont 注册文泉驿::
- import reportlab.rl_config reportlab.rl_config.warnOnMissingFontGlyphs = 0 import reportlab.pdfbase.pdfmetrics import reportlab.pdfbase.ttfonts reportlab.pdfbase.pdfmetrics.registerFont(reportlab.pdfbase.ttfonts.TTFont('song',
- '/usr/share/fonts/truetype/wqy/wqy-zenhei.ttf'))
改默认字体 ==========
先好歹让中文能显示吧，不如暂时让所有字体都用 文泉驿 (刚才把文泉驿注册为"song", 所以这里用 "song" 字体)
修改 reportlab.lib.fonts.ps2tt 和 reportlab.lib.fonts.tt2ps::
- import reportlab.lib.fonts reportlab.lib.fonts.ps2tt = lambda psfn: ('song', 0, 0) reportlab.lib.fonts.tt2ps = lambda fn,b,i: 'song'
中文换行 ========
为了省事，就不考虑哪些要 CJK 折行哪些不要了，直接 try: CJK 换行， except 再英文换行
修改 reportlab.platypus.Paragraph.wrap::
- import reportlab.platypus def wrap(self, availWidth, availHeight):
- # work out widths array for breaking self.width = availWidth leftIndent = self.style.leftIndent first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent later_widths = availWidth - leftIndent - self.style.rightIndent try:
- self.blPara = self.breakLinesCJK([first_line_width, later_widths])
- self.blPara = self.breakLines([first_line_width, later_widths])
- # work out widths array for breaking self.width = availWidth leftIndent = self.style.leftIndent first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent later_widths = availWidth - leftIndent - self.style.rightIndent try:
完整的一段 ==========
就是将上边 3 个合起来::
- import reportlab.rl_config reportlab.rl_config.warnOnMissingFontGlyphs = 0 import reportlab.pdfbase.pdfmetrics import reportlab.pdfbase.ttfonts reportlab.pdfbase.pdfmetrics.registerFont(reportlab.pdfbase.ttfonts.TTFont('song', '/usr/share/fonts/truetype/wqy/wqy-zenhei.ttf')) import reportlab.lib.fonts reportlab.lib.fonts.ps2tt = lambda psfn: ('song', 0, 0) reportlab.lib.fonts.tt2ps = lambda fn,b,i: 'song' ## for CJK Wrap import reportlab.platypus def wrap(self, availWidth, availHeight):
- # work out widths array for breaking self.width = availWidth leftIndent = self.style.leftIndent first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent later_widths = availWidth - leftIndent - self.style.rightIndent try:
- self.blPara = self.breakLinesCJK([first_line_width, later_widths])
- self.blPara = self.breakLines([first_line_width, later_widths])
- # work out widths array for breaking self.width = availWidth leftIndent = self.style.leftIndent first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent later_widths = availWidth - leftIndent - self.style.rightIndent try:
使用
具体的说了那么多，那实际怎么做呢？
前面说了， Python 是动态语言， 你可以将上边的代码随便插入到你的任何程序或模块里，只要在实际调用 reportlab 生成 PDF 前就可以了
1. 直接点，在你的程序 import reportlab 前插入上边的代码 2. 如果想让你原先的文件不要插入这突兀的语句，那可以将上边的代码写入到如 cjkreportlab.py， 在你需要用 reportlab 做中文 pdf 的代码里加个 import cjkreportlab
例子
这里给个修改的 rst2pdf.py::
- #!/usr/bin/env python # -*- coding: utf-8 -*- import docutils.core,docutils.nodes,sys,re import sys import pprint
from types import StringType from docutils import version, version_details, SettingsSpec from docutils import frontend, io, utils, readers, writers from docutils.frontend import OptionParser from docutils.transforms import Transformer import docutils.readers.doctree from urlparse import * from reportlab.platypus import *
#from reportlab.platypus.para import Paragraph,FastPara,Para from reportlab.pdfbase.pdfmetrics import stringWidth from reportlab.lib.enums import * import reportlab.lib.colors as colors from reportlab.lib.units import * from reportlab.lib.pagesizes import * from copy import copy from cgi import escape try:
- from wordaxe.rl.paragraph import Paragraph
from wordaxe.rl.styles import ParagraphStyle, getSampleStyleSheet
- print "No support for hyphenation, install wordaxe"
- # work out widths array for breaking self.width = availWidth leftIndent = self.style.leftIndent first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent later_widths = availWidth - leftIndent - self.style.rightIndent try:
- self.blPara = self.breakLinesCJK([first_line_width, later_widths])
- self.blPara = self.breakLines([first_line_width, later_widths])
- from wordaxe.rl.paragraph import Paragraph
from wordaxe.rl.styles import ParagraphStyle,getSampleStyleSheet
- print "No hyphenation support install wordaxe"
pdfmetrics.registerFont(TTFont('WhiteRabbit', 'wrabbit/WHITRABT.TTF')) addMapping('WhiteRabbit', 0, 0, 'WhiteRabbit') #normal addMapping('WhiteRabbit', 0, 1, 'WhiteRabbit') #italic addMapping('WhiteRabbit', 1, 0, 'WhiteRabbit') #bold addMapping('WhiteRabbit', 1, 1, 'WhiteRabbit') #italic and bold stdMono = 'WhiteRabbit'
- """Returns a stylesheet object"""
stylesheet = StyleSheet1()
stylesheet.add(ParagraphStyle(name='Normal',
- fontName=stdFont, bulletFontName=stdFont, fontSize=10, bulletFontSize=10, leading=12, language='EN', hyphenation=True
- ))
stylesheet.add(ParagraphStyle(name='BodyText',
- parent=stylesheet['Normal'], spaceBefore=6, language='EN', hyphenation=True
- ))
stylesheet.add(ParagraphStyle(name='Footer',
- parent=stylesheet['Normal'], backColor='#EFEFEF', alignment=TA_CENTER)
- )
stylesheet.add(ParagraphStyle(name='Attribution',
parent=stylesheet['BodyText'], alignment=TA_RIGHT)
- )
stylesheet.add(ParagraphStyle(name='FieldName',
parent=stylesheet['BodyText'], alignment=TA_RIGHT, fontName=stdBold, bulletFontName=stdBold, )
- )
stylesheet.add(ParagraphStyle(name='Rubric',
parent=stylesheet['BodyText'], textColor=colors.darkred, alignment=TA_CENTER)
- )
stylesheet.add(ParagraphStyle(name='Italic',
parent=stylesheet['BodyText'], fontName = stdItalic, bulletFontName=stdItalic)
- )
stylesheet.add(ParagraphStyle(name='Title',
- parent=stylesheet['Normal'], fontName = stdBold, bulletFontName=stdBold, fontSize=18, bulletFontSize=18, leading=22, alignment=TA_CENTER, spaceAfter=6),
- alias='title')
stylesheet.add(ParagraphStyle(name='Subtitle',
- parent=stylesheet['Title'], fontSize=14, bulletFontSize=14),
- alias='subtitle')
stylesheet.add(ParagraphStyle(name='Heading1',
- parent=stylesheet['Normal'], fontName = stdBold, bulletFontName=stdBold, fontSize=18, bulletFontSize=18, leading=22, keepWithNext=True, spaceAfter=6),
- alias='h1')
stylesheet.add(ParagraphStyle(name='Heading2',
- parent=stylesheet['Normal'], fontName = stdBold, bulletFontName=stdBold, fontSize=14, bulletFontSize=14, leading=18, spaceBefore=12, keepWithNext=True, spaceAfter=6),
- alias='h2')
stylesheet.add(ParagraphStyle(name='Heading3',
- parent=stylesheet['Normal'], fontName = stdBoldItalic, bulletFontName=stdBoldItalic, fontSize=12, bulletFontSize=12, leading=14, spaceBefore=12, keepWithNext=True, spaceAfter=6),
- alias='h3')
stylesheet.add(ParagraphStyle(name='Heading4',
- parent=stylesheet['Normal'], fontName = stdBoldItalic, bulletFontName=stdBoldItalic, fontSize=12, bulletFontSize=12, leading=14, spaceBefore=12, keepWithNext=True, spaceAfter=6),
- alias='h4')
stylesheet.add(ParagraphStyle(name='Bullet',
- parent=stylesheet['Normal'], firstLineIndent=0, spaceBefore=3),
- alias='bu')
stylesheet.add(ParagraphStyle(name='Definition',
- parent=stylesheet['Normal'], firstLineIndent=0, leftIndent=36, bulletIndent=0, spaceBefore=6, fontName=stdBold, bulletFontName=stdBold),
- alias='df')
stylesheet.add(ParagraphStyle(name='Code',
- parent=stylesheet['Normal'], fontName=stdMono, bulletFontName=stdMono, fontSize=8, bulletFontSize=8, leading=8.8, firstLineIndent=0, leftIndent=12, spaceBefore=4))
- ('INNERGRID', (0,0), (-1,-1), 0.25, colors.black), ('BOX', (0,0), (-1,-1), 0.25, colors.black),
- ]
tstyles['Normal']=TableStyle(tstyleNorm) # Used for field lists
tstyles['Field']=TableStyle([ ('VALIGN',(0,0),(-1,-1),'TOP'),
- ('ALIGNMENT',(0,0),(1,-1),'RIGHT'),
- ])
tstyles['Endnote']=TableStyle([ ('VALIGN',(0,0),(-1,-1),'TOP'),
- ('ALIGNMENT',(0,0),(1,-1),'RIGHT'),
- ])
tstyles['Sidebar']=TableStyle([ ('VALIGN',(0,0),(-1,-1),'TOP'),
- ('BACKGROUND',(0,0),(-1,-1),colors.lightyellow),
- ])
- import wordaxe
from wordaxe.PyHnjHyphenator import PyHnjHyphenator try:
wordaxe.hyphRegistry['EN'] = PyHnjHyphenator('en_US',5)
wordaxe.hyphRegistry['EN'] = PyHnjHyphenator('en_US',5,purePython=True)
- print "No support for hyphenation, install wordaxe"
marks="#=-_*^>%&|" lowerroman=['i','ii','iii','iv','v','vi','vii','viii','ix','x','xi'] loweralpha="abcdefghijklmnopqrstuvwxyz"
class MyIndenter(Indenter):
- # Bugs in reportlab? def draw(self):
- pass
- if node.parent==None:
- return 0
- return 1+depth(node.parent)
return .join([gen_pdftext(n,depth,in_line_block,replaceEnt) for n in node.children ])
- pre="" post="" if isinstance (node, docutils.nodes.paragraph) \
- or isinstance (node, docutils.nodes.title) \ or isinstance (node, docutils.nodes.subtitle) \ :
- node.pdftext=gather_pdftext(node,depth)+"\n"
- node.pdftext=node.astext() if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre="<b>" post="</b>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre="<i>" post="</i>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre='<font face="%s">'%styles['Code'].fontName post="</font>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre='<super>' post="</super>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre='<sub>' post="</sub>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
- # FIXME needs to work as a link
pre='<font color="blue">' post="</font>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
pre='<font color="blue">' post="</font>" uri=node.get('refuri') if uri:
- if urlparse(uri)[0]:
pre+=u'<a href="%s">'%uri post='</a>'+post
- uri=node.get('refid') if uri:
pre+=u'<a href="#%s">'%uri post='</a>'+post
- node.pdftext=escape(node.pdftext,True)
- if urlparse(uri)[0]:
- or isinstance (node, docutils.nodes.option_argument) \ :
- node.pdftext=node.astext() if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
- or isinstance (node, docutils.nodes.footer) \
- :
- node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
- or isinstance (node, docutils.nodes.problematic) \ :
- sys.stderr.write (node.astext()+"\n") sys.stderr.flush()
pre='<font color="red">' post="</font>" node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
- node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
node.pdftext='<img src="%s" />'%node.get('uri')
- # Fixme link to the right place
node.pdftext=u'<super><font color="blue">%s</font></super>'%node.astext()
- # Fixme link to the right place
node.pdftext=u'<font color="blue">[%s]</font>'%node.astext()
- # FIXME: make it work as a target for links node.pdftext=gather_pdftext(node,depth) if replaceEnt:
- node.pdftext=escape(node.pdftext,True)
print "Unkn. node (gen_pdftext): ", node.class print node #print node.transform sys.exit(1)
def PreformattedFit(text,style):
- """Preformatted section that gets horizontally compressed if needed.""" w=max(map(lambda line:stringWidth(line,style.fontName,style.fontSize),text.splitlines())) mw=tw-style.leftIndent-style.rightIndent
if w>mw:
- style=copy(style) f=max((0.375,mw/w)) style.fontSize*=f style.leading*=f
def gen_elements(node, depth, in_line_block=False, style=styles['BodyText']):
- global decoration if isinstance (node, docutils.nodes.document):
- node.elements=gather_elements(node,depth,style=style)
- node.elements=gather_elements(node,depth)
- rows=[] hasHead=False for n in node.children:
- if isinstance (n,docutils.nodes.thead):
- hasHead=True for row in n.children:
- r=[] for cell in row.children:
- r.append(cell)
- r=[] for cell in row.children:
- for row in n.children:
- r=[] for cell in row.children:
- r.append(cell)
- r=[] for cell in row.children:
- hasHead=True for row in n.children:
- r=[] for cell in row:
- if isinstance(cell,str):
- r.append("")
- r.append(gather_elements(cell,depth))
- if isinstance(cell,str):
- st+=[tstyleHead]
node.elements=[Table(data,style=TableStyle(st))]
- if isinstance (n,docutils.nodes.thead):
# Special cases: (Not sure this is right
if isinstance (node.parent, docutils.nodes.document): - # FIXME maybe make it a coverpage? node.elements=[Paragraph(gen_pdftext(node,depth), styles['Title'])]
- # FIXME style correctly node.elements=[Paragraph(gen_pdftext(node,depth), styles['Heading3'])]
- isinstance (node.parent, docutils.nodes.sidebar):
- node.elements=[Paragraph(gen_pdftext(node,depth), styles['Heading3'])]
- node.elements=[Paragraph(gen_pdftext(node,depth), styles['Heading%d'%min(depth,3)])]
- if isinstance (node.parent,docutils.nodes.sidebar):
- node.elements=[Paragraph(gen_pdftext(node,depth), styles['Heading4'])]
- node.elements=[Paragraph(gen_pdftext(node,depth), styles['Subtitle'])]
- node.elements=[Paragraph(gen_pdftext(node,depth), style)]
- # A docinfo usually contains several fields. # We'll render it as a series of elements, one field each. node.elements=gather_elements(node,depth,style=style)
- # A field has two child elements, a field_name and a field_body. # We render as a two-column table, left-column is right-aligned, # bold, and much smaller
fn=Paragraph(gather_pdftext(node.children[0],depth)+":",style=styles['FieldName']) fb=gen_elements(node.children[1],depth) node.elements=[Table(fn,fb,style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])]
- # This is a tricky one. We need to switch our document's # page templates based on this. If decoration contains a # header and/or a footer, we need to use those # right now, we avoid trouble. # FIXME Implement node.elements=gather_elements(node,depth,style=style)
- decoration['header']=Paragraph(gather_pdftext(node,depth),style=styles['Footer']) node.elements=[]
- decoration['footer']=Paragraph(gather_pdftext(node,depth),style=styles['Footer']) node.elements=[]
- if isinstance (node.parent,docutils.nodes.authors):
- # Is only one of multiple authors. Return a paragraph node.elements=[Paragraph(gather_pdftext(node,depth), style=style)]
- # A single author: works like a field fb=gather_pdftext(node,depth)
node.elements=[Table([[Paragraph("Author:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])]
- # Multiple authors. Create a two-column table. Author references on the right.
td=Paragraph("Authors:",style=styles['FieldName']),gather_elements(node,depth,style=style) node.elements=[Table(td,style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])]
- fb=gather_pdftext(node,depth)
t=Table([[Paragraph("Organization:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Contact:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Address:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Version:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Revision:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Version:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[ Paragraph("Date:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- fb=gather_pdftext(node,depth)
t=Table([[Paragraph("Copyright:",style=styles['FieldName']),
- Paragraph(fb,style) ]],style=tstyles['Field'],colWidths=[fieldlist_lwidth,None])
- or isinstance (node, docutils.nodes.field_body) \ :
- node.elements=gather_elements(node,depth,style=style)
if depth<page_break_level:
node.elements=[PageBreak()]+gather_elements(node,depth+1)
- node.elements=gather_elements(node,depth+1)
- or isinstance (node, docutils.nodes.enumerated_list) \ or isinstance (node, docutils.nodes.definition_list) \ or isinstance (node, docutils.nodes.option_list) \ or isinstance (node, docutils.nodes.field_list) \ or isinstance (node, docutils.nodes.definition) \ :
- node.elements=gather_elements(node,depth,style=style)
- og = gather_elements(node.children[0],depth,style) desc = gather_elements(node.children[1],depth,style)
node.elements=[Table(og,desc,style=tstyles['Field'])]
- # I need to catch the classifiers here tt=[] dt=[] for n in node.children:
- if isinstance(n,docutils.nodes.term) or \
- isinstance(n,docutils.nodes.classifier) :
- tt.append(gather_pdftext(n,depth,style))
- dt=dt+gen_elements(n,depth,style)
node.elements=[Paragraph(':'.join(tt),style),MyIndenter(left=10)]+dt+[MyIndenter(left=-10)]
- if isinstance(n,docutils.nodes.term) or \
- # A list_item is a table of two columns. # The left one is the bullet itself, the right is the # item content. This way we can nest them. el=gather_elements(node,depth,style=style) b="" if node.parent.get('bullet') or isinstance(node.parent,docutils.nodes.bullet_list):
- # FIXME: use correct bullet symbols, check inter-paragraph spacing b=str(node.parent.get('bullet')) if b=="None":
- b=""
- b=str(node.parent.children.index(node)+1)+'.'
- b=str(lowerroman[node.parent.children.index(node)])+'.'
- b=str(lowerroman[node.parent.children.index(node)].upper())+'.'
- b=str(loweralpha[node.parent.children.index(node)])+'.'
- b=str(loweralpha[node.parent.children.index(node)].upper())+'.'
- print "Unknown kind of list_item" print node.parent sys.exit(1)
- # FIXME: use correct bullet symbols, check inter-paragraph spacing b=str(node.parent.get('bullet')) if b=="None":
- node.elements=[Separation()]
- or isinstance (node, docutils.nodes.problematic) \ :
- # FIXME show the error in the document, red, whatever sys.stderr.write (node.astext()+"\n") sys.stderr.flush() node.elements=[]
node.elements=[MyIndenter(left=20)]+gather_elements(node,depth,style)+[MyIndenter(left=-20)]
- node.elements=[Paragraph(gather_pdftext(node,depth),styles['Attribution'])]
- # Class that generates no output node.elements=[]
- # Obsolete? Let's do something anyway. # FIXME: indent or not? qstyle=copy(style) qstyle.leftIndent+=30 node.elements=gather_elements(node,depth,style=qstyle)
- # All elements in one line node.elements=[Paragraph(gather_pdftext(node,depth),style=style)]
- or isinstance (node, docutils.nodes.doctest_block) \ or isinstance (node, docutils.nodes.option) \
- :
node.elements=[PreformattedFit(gather_pdftext(node,depth,replaceEnt=False),styles['Code'])]
- or isinstance (node, docutils.nodes.caution) \ or isinstance (node, docutils.nodes.danger) \ or isinstance (node, docutils.nodes.error) \ or isinstance (node, docutils.nodes.hint) \ or isinstance (node, docutils.nodes.important) \ or isinstance (node, docutils.nodes.note) \ or isinstance (node, docutils.nodes.tip) \ or isinstance (node, docutils.nodes.warning) \ or isinstance (node, docutils.nodes.admonition) \
- node.elements=[Paragraph(node.tagname.title(),style=styles['Heading3'])]+gather_elements(node,depth,style=style)
- # FIXME handle all the other attributes i=Image(filename=str(node.get("uri"))) if node.get('align'):
- i.hAlign=node.get('align').upper()
- # The sub-elements are the figure and the caption, and't ugly if # they separate
node.elements=[KeepTogether(gather_elements(node,depth,style=style))]
node.elements=[Paragraph('<i>'+gather_pdftext(node,depth)+'</i>',style=style)]
- node.elements=gather_elements(node,depth,style=style)
node.elements=[Table(gather_elements(node,depth,style=style),style=tstyles['Sidebar'])]
- node.elements=[Paragraph(gather_pdftext(node,depth),styles['Rubric'])]
- # FIXME think if this is even implementable node.elements=gather_elements(node,depth,style)
- # FIXME think if this is even implementable node.elements=gather_elements(node,depth,style)
- node.elements=[]
- rows=[gen_elements(n,depth) for n in node.children] t=[] for r in rows:
- if not r:
- continue
- if not r:
- # It seems a footnote contains a label and a series of elements label=Paragraph(gather_pdftext(node.children[0],depth),style) contents=gather_elements(node,depth,style)[1:] decoration['endnotes'].append([label,contents]) node.elements=[]
- node.elements=[Paragraph(gather_pdftext(node,depth),style)]
- node.elements=[Paragraph(gather_pdftext(node,depth),style)]
- node.elements=gather_elements(node,depth,style)
- or isinstance (node, docutils.nodes.footnote) \ or isinstance (node, docutils.nodes.citation) \ or isinstance (node, docutils.nodes.reference) \ or isinstance (node, docutils.nodes.raw) \
- : node.elements=[]
print "Unkn. node (gen_elements): ", node.class print node sys.exit(1)
- node.elements.insert(
node.elements and isinstance(node.elements[0], PageBreak) and 1 or 0, Paragraph('<a name="%s"/>'%id,style))
def gather_elements (node, depth, in_line_block=False,style=styles['BodyText']):
- r=[] for n in node.children:
- r=r+(gen_elements(n,depth,in_line_block,style=style))
" A simple <hr>-like thingie" def wrap(self,w,h):
- self.w=w return (w,1*cm)
- self.canv.line(0,0.5*cm,self.w,0.5*cm)
class FancyPage(PageTemplate):
def init(self,_id,pw,ph,tm,bm,lm,rm,hh,fh,head,foot):
- tw=pw-lm-rm #textframe=Frame(lm,tm+hh,tw,ph-tm-bm-hh-fh) textframe=Frame(lm,tm+hh,tw,ph-tm-bm-hh-fh,topPadding=hh,bottomPadding=fh) self.head=head self.hx=lm self.hy=ph-tm self.foot=foot self.fx=lm self.fy=bm
PageTemplate.init(self,_id,[textframe])
- if self.head:
- self.head.drawOn(canv,self.hx,self.hy)
- self.foot.drawOn(canv,self.fx,self.fy)
- tw=pw-lm-rm #textframe=Frame(lm,tm+hh,tw,ph-tm-bm-hh-fh) textframe=Frame(lm,tm+hh,tw,ph-tm-bm-hh-fh,topPadding=hh,bottomPadding=fh) self.head=head self.hx=lm self.hy=ph-tm self.foot=foot self.fx=lm self.fy=bm
- # If there is a multicol cell, we need to insert Continuation Cells # to make all rows the same length for y in range(0,len( rows)):
- for x in range (0,len(rows[y])):
- cell=rows[y][x] if isinstance (cell,str):
- continue
- for i in range(0,cell.get("morecols")):
- rows[y].insert(x+1,"")
- cell=rows[y][x] if isinstance (cell,str):
- for x in range (0,len(rows[y])):
- cell=rows[y][x] if isinstance (cell,str):
- continue
- for i in range(0,cell.get("morerows")):
- rows[y+i+1].insert(x,"")
- cell=rows[y][x] if isinstance (cell,str):
- for x in range (0,len(rows[y])):
- cell=rows[y][x] if isinstance (cell,str):
- continue
- mc=cell.get("morecols")
- mr=cell.get("morerows")
- spans.append(('SPAN',(x,y),(x+mc,y+mr)))
- cell=rows[y][x] if isinstance (cell,str):
- for x in range (0,len(rows[y])):
if name == "main":
- input=open(sys.argv[1]).read() import docutils.core doc=docutils.core.publish_doctree(input) elements=gen_elements(doc,0) endnotes = decoration['endnotes'] if endnotes:
- elements.append(Spacer(1,2*cm)) elements.append(Separation()) for n in decoration['endnotes']:
elements.append(Table(n[0],n[1],style=tstyles['Endnote'],colWidths=[endnote_lwidth,None]))
- hh=head.wrap(tw,ph)[1]
- hh=0
- fh=foot.wrap(tw,ph)[1]
- fh=0
# So, now, create the FancyPage with the right sizes and elements
FP=FancyPage("fancypage",pw,ph,tm,bm,lm,rm,hh,fh,head,foot) # A basic document for us to write to 'rl_hello_platypus.pdf'
pdfdoc = BaseDocTemplate(sys.argv[1]+'.pdf',pageTemplates=[FP],showBoundary=0,pagesize=ps) pdfdoc.build(elements)
- elements.append(Spacer(1,2*cm)) elements.append(Separation()) for n in decoration['endnotes']:
- from wordaxe.rl.paragraph import Paragraph
唔，您可以拿本 RST 文件来测试 rst2pdf 中文，注意编码得是 utf8
命令::
- /rst2pdf.py XXX.rst
其他问题
现存问题::
- 硬编码的 文泉驿正黑字体 路径不能灵活适应不同系统
- 文泉驿正黑中文没有粗体和斜体
- 由于没有选字，而是一律文泉驿字体，使得英文也没有了粗斜体
您说，本文做的 pdf 没书签没目录？
唔，这是这个 rst2pdf 程序原先的问题，本文只解决 python-reportlab 中文显示和换行。
还有其他问题么？ 请洽 python-cn 的老大 Zoomq 大妈 (Zoom. Quiet <[email protected]>) ~ 奥运进行时，请尽情搔扰~ }}}
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创建 by -- ZoomQuiet [DateTime(2008-08-10T00:41:33Z)]