2013 lines
70 KiB
Python
2013 lines
70 KiB
Python
# Copyright ReportLab Europe Ltd. 2000-2008
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# see license.txt for license details
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# history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/platypus/paragraph.py
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# Modifications by Dirk Holtwick, 2008
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from __future__ import annotations
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import re
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import sys
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from copy import deepcopy
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from operator import truth
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from string import whitespace
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from typing import Callable
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from reportlab.graphics import renderPDF
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from reportlab.lib.abag import ABag
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from reportlab.lib.colors import Color
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from reportlab.lib.enums import TA_CENTER, TA_JUSTIFY, TA_LEFT, TA_RIGHT
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from reportlab.lib.textsplit import ALL_CANNOT_START
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from reportlab.pdfbase.pdfmetrics import getAscentDescent, stringWidth
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from reportlab.platypus.flowables import Flowable
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from reportlab.platypus.paraparser import ParaParser
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from reportlab.rl_settings import _FUZZ
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from xhtml2pdf.util import getSize
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PARAGRAPH_DEBUG = False
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LEADING_FACTOR = 1.0
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_wsc_re_split = re.compile(
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"[%s]+"
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% re.escape(
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"\t\n\x0b\x0c\r\x1c\x1d\x1e\x1f"
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" \x85\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u2028\u2029\u202f\u205f\u3000"
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)
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).split
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def split(text, delim=None):
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if isinstance(text, bytes):
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text = text.decode("utf8")
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if isinstance(delim, bytes):
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delim = delim.decode("utf8")
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elif delim is None and "\xa0" in text:
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return [uword.encode("utf8") for uword in _wsc_re_split(text)]
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return [uword.encode("utf8") for uword in text.split(delim)]
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def strip(text):
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if isinstance(text, bytes):
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text = text.decode("utf8")
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return text.strip().encode("utf8")
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class ParaLines(ABag):
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"""
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class ParaLines contains the broken into lines representation of Paragraphs
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kind=0 Simple
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fontName, fontSize, textColor apply to whole Paragraph
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lines [(extraSpace1,words1),....,(extraspaceN,wordsN)].
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kind==1 Complex
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lines [FragLine1,...,FragLineN]
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"""
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class FragLine(ABag):
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"""
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class FragLine contains a styled line (ie a line with more than one style)::
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extraSpace unused space for justification only
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wordCount 1+spaces in line for justification purposes
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words [ParaFrags] style text lumps to be concatenated together
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fontSize maximum fontSize seen on the line; not used at present,
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but could be used for line spacing.
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"""
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# our one and only parser
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# XXXXX if the parser has any internal state using only one is probably a BAD idea!
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_parser = ParaParser()
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def _lineClean(L):
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return b" ".join(filter(truth, split(strip(L))))
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def cleanBlockQuotedText(text, joiner=b" "):
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"""
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This is an internal utility which takes triple-
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quoted text form within the document and returns
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(hopefully) the paragraph the user intended originally.
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"""
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L = filter(truth, map(_lineClean, split(text, "\n")))
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return joiner.join(L)
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def setXPos(tx, dx):
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if dx > 1e-6 or dx < -1e-6:
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tx.setXPos(dx)
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def _leftDrawParaLine(tx, offset, _extraspace, words, _last=0):
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setXPos(tx, offset)
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tx._textOut(b" ".join(words), 1)
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setXPos(tx, -offset)
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return offset
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def _centerDrawParaLine(tx, offset, extraspace, words, _last=0):
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m = offset + 0.5 * extraspace
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setXPos(tx, m)
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tx._textOut(b" ".join(words), 1)
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setXPos(tx, -m)
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return m
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def _rightDrawParaLine(tx, offset, extraspace, words, _last=0):
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m = offset + extraspace
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setXPos(tx, m)
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tx._textOut(b" ".join(words), 1)
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setXPos(tx, -m)
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return m
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def _justifyDrawParaLine(tx, offset, extraspace, words, last=0):
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setXPos(tx, offset)
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text = b" ".join(words)
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if last:
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# last one, left align
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tx._textOut(text, 1)
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else:
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nSpaces = len(words) - 1
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if nSpaces:
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tx.setWordSpace(extraspace / float(nSpaces))
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tx._textOut(text, 1)
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tx.setWordSpace(0)
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else:
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tx._textOut(text, 1)
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setXPos(tx, -offset)
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return offset
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def imgVRange(h, va, fontSize):
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"""Return bottom,top offsets relative to baseline(0)."""
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if va == "baseline":
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iyo = 0
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elif va in ("text-top", "top"):
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iyo = fontSize - h
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elif va == "middle":
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iyo = fontSize - (1.2 * fontSize + h) * 0.5
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elif va in ("text-bottom", "bottom"):
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iyo = fontSize - 1.2 * fontSize
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elif va == "super":
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iyo = 0.5 * fontSize
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elif va == "sub":
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iyo = -0.5 * fontSize
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elif hasattr(va, "normalizedValue"):
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iyo = va.normalizedValue(fontSize)
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else:
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iyo = va
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return iyo, iyo + h
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_56 = 5.0 / 6
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_16 = 1.0 / 6
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def _putFragLine(cur_x, tx, line):
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xs = tx.XtraState
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cur_y = xs.cur_y
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x0 = tx._x0
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autoLeading = xs.autoLeading
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leading = xs.leading
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cur_x += xs.leftIndent
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dal = autoLeading in ("min", "max")
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if dal:
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if autoLeading == "max":
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ascent = max(_56 * leading, line.ascent)
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descent = max(_16 * leading, -line.descent)
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else:
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ascent = line.ascent
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descent = -line.descent
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leading = ascent + descent
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if tx._leading != leading:
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tx.setLeading(leading)
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if dal:
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olb = tx._olb
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if olb is not None:
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xcy = olb - ascent
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if tx._oleading != leading:
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cur_y += leading - tx._oleading
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if abs(xcy - cur_y) > 1e-8:
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cur_y = xcy
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tx.setTextOrigin(x0, cur_y)
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xs.cur_y = cur_y
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tx._olb = cur_y - descent
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tx._oleading = leading
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# Letter spacing
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if xs.style.letterSpacing != "normal":
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tx.setCharSpace(getSize("".join(xs.style.letterSpacing)))
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ws = getattr(tx, "_wordSpace", 0)
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nSpaces = 0
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words = line.words
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for f in words:
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if hasattr(f, "cbDefn"):
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cbDefn = f.cbDefn
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kind = cbDefn.kind
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if kind == "img":
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# draw image cbDefn,cur_y,cur_x
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w = cbDefn.width
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h = cbDefn.height
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txfs = tx._fontsize
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if txfs is None:
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txfs = xs.style.fontSize
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iy0, iy1 = imgVRange(h, cbDefn.valign, txfs)
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cur_x_s = cur_x + nSpaces * ws
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drawing = cbDefn.image.getDrawing(w, h)
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if drawing:
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renderPDF.draw(drawing, tx._canvas, cur_x_s, cur_y + iy0)
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else:
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tx._canvas.drawImage(
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cbDefn.image.getImage(), cur_x_s, cur_y + iy0, w, h, mask="auto"
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)
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cur_x += w
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cur_x_s += w
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setXPos(tx, cur_x_s - tx._x0)
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elif kind == "barcode":
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barcode = cbDefn.barcode
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w = cbDefn.width
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h = cbDefn.height
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txfs = tx._fontsize
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if txfs is None:
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txfs = xs.style.fontSize
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iy0, iy1 = imgVRange(h, cbDefn.valign, txfs)
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cur_x_s = cur_x + nSpaces * ws
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barcode.draw(canvas=tx._canvas, xoffset=cur_x_s)
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cur_x += w
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cur_x_s += w
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setXPos(tx, cur_x_s - tx._x0)
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else:
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name = cbDefn.name
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if kind == "anchor":
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tx._canvas.bookmarkHorizontal(name, cur_x, cur_y + leading)
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else:
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func = getattr(tx._canvas, name, None)
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if not func:
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msg = f"Missing {kind} callback attribute '{name}'"
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raise AttributeError(msg)
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func(tx._canvas, kind, cbDefn.label)
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if f is words[-1]:
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if not tx._fontname:
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tx.setFont(xs.style.fontName, xs.style.fontSize)
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tx._textOut("", 1)
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elif kind == "img":
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tx._textOut("", 1)
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else:
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cur_x_s = cur_x + nSpaces * ws
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if (tx._fontname, tx._fontsize) != (f.fontName, f.fontSize):
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tx._setFont(f.fontName, f.fontSize)
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if xs.textColor != f.textColor:
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xs.textColor = f.textColor
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tx.setFillColor(f.textColor)
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if xs.rise != f.rise:
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xs.rise = f.rise
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tx.setRise(f.rise)
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text = f.text
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tx._textOut(text, f is words[-1]) # cheap textOut
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# XXX Modified for XHTML2PDF
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# Background colors (done like underline)
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if hasattr(f, "backColor") and (
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xs.backgroundColor != f.backColor or xs.backgroundFontSize != f.fontSize
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):
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if xs.backgroundColor is not None:
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xs.backgrounds.append(
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(
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xs.background_x,
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cur_x_s,
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xs.backgroundColor,
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xs.backgroundFontSize,
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)
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)
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xs.background_x = cur_x_s
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xs.backgroundColor = f.backColor
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xs.backgroundFontSize = f.fontSize
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# Underline
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if not (hasattr(xs, "underline") and xs.underline) and (
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hasattr(f, "underline") and f.underline
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):
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xs.underline = 1
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xs.underline_x = cur_x_s
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xs.underlineColor = f.textColor
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elif xs.underline:
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if not f.underline:
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xs.underline = 0
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xs.underlines.append((xs.underline_x, cur_x_s, xs.underlineColor))
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xs.underlineColor = None
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elif xs.textColor != xs.underlineColor:
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xs.underlines.append((xs.underline_x, cur_x_s, xs.underlineColor))
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xs.underlineColor = xs.textColor
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xs.underline_x = cur_x_s
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# Strike
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if not (hasattr(xs, "strike") and xs.strike) and (
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hasattr(f, "strike") and f.strike
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):
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xs.strike = 1
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xs.strike_x = cur_x_s
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xs.strikeColor = f.textColor
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# XXX Modified for XHTML2PDF
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xs.strikeFontSize = f.fontSize
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elif xs.strike:
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if not f.strike:
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xs.strike = 0
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# XXX Modified for XHTML2PDF
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xs.strikes.append(
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(xs.strike_x, cur_x_s, xs.strikeColor, xs.strikeFontSize)
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)
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xs.strikeColor = None
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xs.strikeFontSize = None
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elif xs.textColor != xs.strikeColor:
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xs.strikes.append(
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(xs.strike_x, cur_x_s, xs.strikeColor, xs.strikeFontSize)
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)
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xs.strikeColor = xs.textColor
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xs.strikeFontSize = f.fontSize
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xs.strike_x = cur_x_s
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if f.link and not xs.link:
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if not xs.link:
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xs.link = f.link
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xs.link_x = cur_x_s
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xs.linkColor = xs.textColor
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elif xs.link:
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if not f.link:
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xs.links.append((xs.link_x, cur_x_s, xs.link, xs.linkColor))
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xs.link = None
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xs.linkColor = None
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elif f.link != xs.link or xs.textColor != xs.linkColor:
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xs.links.append((xs.link_x, cur_x_s, xs.link, xs.linkColor))
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xs.link = f.link
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xs.link_x = cur_x_s
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xs.linkColor = xs.textColor
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txtlen = tx._canvas.stringWidth(text, tx._fontname, tx._fontsize)
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cur_x += txtlen
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try:
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nSpaces += text.count(" ")
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except Exception:
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nSpaces += text.decode("utf8").count(" ")
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cur_x_s = cur_x + (nSpaces - 1) * ws
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# XXX Modified for XHTML2PDF
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# Underline
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if xs.underline:
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xs.underlines.append((xs.underline_x, cur_x_s, xs.underlineColor))
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# XXX Modified for XHTML2PDF
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# Backcolor
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if words and hasattr(f, "backColor") and xs.backgroundColor is not None:
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xs.backgrounds.append(
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(xs.background_x, cur_x_s, xs.backgroundColor, xs.backgroundFontSize)
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)
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# XXX Modified for XHTML2PDF
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# Strike
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if xs.strike:
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xs.strikes.append((xs.strike_x, cur_x_s, xs.strikeColor, xs.strikeFontSize))
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if xs.link:
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xs.links.append((xs.link_x, cur_x_s, xs.link, xs.linkColor))
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if tx._x0 != x0:
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setXPos(tx, x0 - tx._x0)
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def _leftDrawParaLineX(tx, offset, line, _last=0):
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setXPos(tx, offset)
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_putFragLine(offset, tx, line)
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setXPos(tx, -offset)
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def _centerDrawParaLineX(tx, offset, line, _last=0):
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m = offset + 0.5 * line.extraSpace
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setXPos(tx, m)
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_putFragLine(m, tx, line)
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setXPos(tx, -m)
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def _rightDrawParaLineX(tx, offset, line, _last=0):
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m = offset + line.extraSpace
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setXPos(tx, m)
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_putFragLine(m, tx, line)
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setXPos(tx, -m)
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def _justifyDrawParaLineX(tx, offset, line, last=0):
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setXPos(tx, offset)
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extraSpace = line.extraSpace
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nSpaces = line.wordCount - 1
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if (
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last
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or not nSpaces
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or abs(extraSpace) <= 1e-8
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or (hasattr(line, "lineBreak") and line.lineBreak)
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):
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_putFragLine(offset, tx, line) # no space modification
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else:
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tx.setWordSpace(extraSpace / float(nSpaces))
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_putFragLine(offset, tx, line)
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tx.setWordSpace(0)
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setXPos(tx, -offset)
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def _sameFrag(f, g):
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"""Returns 1 if two ParaFrags map out the same."""
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if (
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hasattr(f, "cbDefn")
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or hasattr(g, "cbDefn")
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or hasattr(f, "lineBreak")
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or hasattr(g, "lineBreak")
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):
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return 0
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for a in (
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"fontName",
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"fontSize",
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"textColor",
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"backColor",
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"rise",
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"underline",
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"strike",
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"link",
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):
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if getattr(f, a, None) != getattr(g, a, None):
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return 0
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return 1
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def reverse_sentence(sentence):
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words = str(sentence).split(" ")
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reverse_sentence = " ".join(reversed(words))
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return reverse_sentence[::-1]
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def _getFragWords(frags, *, reverse=False):
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"""
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Given a Parafrag list return a list of fragwords
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[[size, (f00,w00), ..., (f0n,w0n)],....,[size, (fm0,wm0), ..., (f0n,wmn)]]
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each pair f,w represents a style and some string
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each sublist represents a word.
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"""
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R = []
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W = []
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n = 0
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hangingStrip = False
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for f in frags:
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text = f.text
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if isinstance(text, bytes):
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text = text.decode("utf8")
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if reverse:
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text = reverse_sentence(text)
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# of paragraphs
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if text:
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if hangingStrip:
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hangingStrip = False
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text = text.lstrip()
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S = split(text)
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if reverse:
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S.reverse()
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if [] == S:
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S = [""]
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if [] != W and text[0] in whitespace:
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W.insert(0, n)
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R.append(W)
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W = []
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n = 0
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for w in S[:-1]:
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W.append((f, w))
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n += stringWidth(w, f.fontName, f.fontSize)
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W.insert(0, n)
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R.append(W)
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W = []
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n = 0
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w = S[-1]
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W.append((f, w))
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n += stringWidth(w, f.fontName, f.fontSize)
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if text and text[-1] in whitespace:
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W.insert(0, n)
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R.append(W)
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W = []
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n = 0
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elif hasattr(f, "cbDefn"):
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w = getattr(f.cbDefn, "width", 0)
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if w:
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if [] != W:
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W.insert(0, n)
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R.append(W)
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W = []
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n = 0
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R.append([w, (f, "")])
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else:
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W.append((f, ""))
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elif hasattr(f, "lineBreak"):
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# pass the frag through. The line breaker will scan for it.
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if [] != W:
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W.insert(0, n)
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R.append(W)
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W = []
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n = 0
|
|
R.append([0, (f, "")])
|
|
hangingStrip = True
|
|
|
|
if [] != W:
|
|
W.insert(0, n)
|
|
R.append(W)
|
|
|
|
return R
|
|
|
|
|
|
def _split_blParaSimple(blPara, start: int, stop: int) -> list:
|
|
f = blPara.clone()
|
|
for a in ("lines", "kind", "text"):
|
|
if hasattr(f, a):
|
|
delattr(f, a)
|
|
|
|
f.words = []
|
|
for line in blPara.lines[start:stop]:
|
|
for w in line[1]:
|
|
f.words.append(w)
|
|
return [f]
|
|
|
|
|
|
def _split_blParaHard(blPara, start: int, stop: int) -> list:
|
|
f = []
|
|
lines = blPara.lines[start:stop]
|
|
for line in lines:
|
|
for w in line.words:
|
|
f.append(w) # noqa: PERF402
|
|
if line is not lines[-1]:
|
|
i = len(f) - 1
|
|
while (
|
|
i >= 0
|
|
and hasattr(f[i], "cbDefn")
|
|
and not getattr(f[i].cbDefn, "width", 0)
|
|
):
|
|
i -= 1
|
|
if i >= 0:
|
|
g = f[i]
|
|
if not g.text:
|
|
g.text = " "
|
|
else:
|
|
if isinstance(g.text, bytes):
|
|
g.text = g.text.decode("utf8")
|
|
if g.text[-1] != " ":
|
|
g.text += " "
|
|
return f
|
|
|
|
|
|
def _drawBullet(canvas, offset, cur_y, bulletText, style):
|
|
"""Draw a bullet text could be a simple string or a frag list."""
|
|
tx2 = canvas.beginText(
|
|
style.bulletIndent, cur_y + getattr(style, "bulletOffsetY", 0)
|
|
)
|
|
tx2.setFont(style.bulletFontName, style.bulletFontSize)
|
|
tx2.setFillColor(
|
|
hasattr(style, "bulletColor") and style.bulletColor or style.textColor
|
|
)
|
|
if isinstance(bulletText, str):
|
|
tx2.textOut(bulletText)
|
|
else:
|
|
for f in bulletText:
|
|
if hasattr(f, "image"):
|
|
image = f.image
|
|
width = image.drawWidth
|
|
height = image.drawHeight
|
|
gap = style.bulletFontSize * 0.25
|
|
img = image.getImage()
|
|
# print style.bulletIndent, offset, width
|
|
canvas.drawImage(
|
|
img,
|
|
style.leftIndent - width - gap,
|
|
cur_y + getattr(style, "bulletOffsetY", 0),
|
|
width,
|
|
height,
|
|
)
|
|
else:
|
|
tx2.setFont(f.fontName, f.fontSize)
|
|
tx2.setFillColor(f.textColor)
|
|
tx2.textOut(f.text)
|
|
canvas.drawText(tx2)
|
|
# AR making definition lists a bit less ugly
|
|
# bulletEnd = tx2.getX()
|
|
bulletEnd = tx2.getX() + style.bulletFontSize * 0.6
|
|
return max(offset, bulletEnd - style.leftIndent)
|
|
|
|
|
|
def _handleBulletWidth(bulletText, style, maxWidths):
|
|
"""Work out bullet width and adjust maxWidths[0] if neccessary."""
|
|
if bulletText:
|
|
if isinstance(bulletText, str):
|
|
bulletWidth = stringWidth(
|
|
bulletText, style.bulletFontName, style.bulletFontSize
|
|
)
|
|
else:
|
|
# it's a list of fragments
|
|
bulletWidth = 0
|
|
for f in bulletText:
|
|
bulletWidth = bulletWidth + stringWidth(f.text, f.fontName, f.fontSize)
|
|
bulletRight = style.bulletIndent + bulletWidth + 0.6 * style.bulletFontSize
|
|
indent = style.leftIndent + style.firstLineIndent
|
|
if bulletRight > indent:
|
|
# ..then it overruns, and we have less space available on line 1
|
|
maxWidths[0] -= bulletRight - indent
|
|
|
|
|
|
def splitLines0(frags, widths):
|
|
"""
|
|
Given a list of ParaFrags we return a list of ParaLines.
|
|
|
|
each ParaLine has
|
|
1) ExtraSpace
|
|
2) blankCount
|
|
3) [textDefns....]
|
|
each text definition is a (ParaFrag, start, limit) triplet
|
|
"""
|
|
# initialise the algorithm
|
|
lineNum = 0
|
|
maxW = widths[lineNum]
|
|
i = -1
|
|
line = len(frags)
|
|
lim = start = 0
|
|
text = frags[0]
|
|
while 1:
|
|
# find a non whitespace character
|
|
while i < line:
|
|
while start < lim and text[start] == " ":
|
|
start += 1
|
|
if start == lim:
|
|
i += 1
|
|
if i == line:
|
|
break
|
|
start = 0
|
|
f = frags[i]
|
|
text = f.text
|
|
lim = len(text)
|
|
else:
|
|
break # we found one
|
|
|
|
if start == lim:
|
|
break # if we didn't find one we are done
|
|
|
|
# start of a line
|
|
g = (None, None, None)
|
|
line = []
|
|
cLen = 0
|
|
nSpaces = 0
|
|
while cLen < maxW:
|
|
j = text.find(" ", start)
|
|
if j < 0:
|
|
j = lim
|
|
w = stringWidth(text[start:j], f.fontName, f.fontSize)
|
|
cLen += w
|
|
if cLen > maxW and line != []:
|
|
cLen = cLen - w
|
|
# this is the end of the line
|
|
while g.text[lim] == " ":
|
|
lim -= 1
|
|
nSpaces -= 1
|
|
break
|
|
if j < 0:
|
|
j = lim
|
|
if g[0] is f:
|
|
g[2] = j # extend
|
|
else:
|
|
g = (f, start, j)
|
|
line.append(g)
|
|
if j == lim:
|
|
i += 1
|
|
|
|
|
|
def _do_under_line(i, t_off, ws, tx, lm=-0.125):
|
|
y = (
|
|
tx.XtraState.cur_y
|
|
- i * tx.XtraState.style.leading
|
|
+ lm * tx.XtraState.f.fontSize
|
|
)
|
|
textlen = tx._canvas.stringWidth(
|
|
b" ".join(tx.XtraState.lines[i][1]), tx._fontname, tx._fontsize
|
|
)
|
|
tx._canvas.line(t_off, y, t_off + textlen + ws, y)
|
|
|
|
|
|
_scheme_re = re.compile("^[a-zA-Z][-+a-zA-Z0-9]+$")
|
|
|
|
|
|
def _doLink(tx, link, rect):
|
|
parts = link.split(":", 1)
|
|
scheme = len(parts) == 2 and parts[0].lower() or ""
|
|
if _scheme_re.match(scheme) and scheme != "document":
|
|
kind = scheme.lower() == "pdf" and "GoToR" or "URI"
|
|
if kind == "GoToR":
|
|
link = parts[1]
|
|
tx._canvas.linkURL(link, rect, relative=1, kind=kind)
|
|
else:
|
|
if link[0] == "#":
|
|
link = link[1:]
|
|
scheme = ""
|
|
tx._canvas.linkRect(
|
|
"", scheme != "document" and link or parts[1], rect, relative=1
|
|
)
|
|
|
|
|
|
def _do_link_line(i, t_off, ws, tx):
|
|
xs = tx.XtraState
|
|
leading = xs.style.leading
|
|
y = xs.cur_y - i * leading - xs.f.fontSize / 8.0 # 8.0 factor copied from para.py
|
|
text = b" ".join(xs.lines[i][1])
|
|
textlen = tx._canvas.stringWidth(text, tx._fontname, tx._fontsize)
|
|
_doLink(tx, xs.link, (t_off, y, t_off + textlen + ws, y + leading))
|
|
|
|
|
|
# XXX Modified for XHTML2PDF
|
|
def _do_post_text(tx):
|
|
"""
|
|
Try to find out what the variables mean:
|
|
|
|
tx A structure containing more informations about paragraph ???
|
|
|
|
leading Height of lines
|
|
ff 1/8 of the font size
|
|
y0 The "baseline" postion ???
|
|
y 1/8 below the baseline
|
|
"""
|
|
xs = tx.XtraState
|
|
leading = xs.style.leading
|
|
autoLeading = xs.autoLeading
|
|
f = xs.f
|
|
if autoLeading == "max":
|
|
# leading = max(leading, f.fontSize)
|
|
leading = max(leading, LEADING_FACTOR * f.fontSize)
|
|
elif autoLeading == "min":
|
|
leading = LEADING_FACTOR * f.fontSize
|
|
ff = 0.125 * f.fontSize
|
|
y0 = xs.cur_y
|
|
y = y0 - ff
|
|
|
|
# Background
|
|
for x1, x2, c, fs in xs.backgrounds:
|
|
inlineFF = fs * 0.125
|
|
gap = inlineFF * 1.25
|
|
tx._canvas.setFillColor(c)
|
|
tx._canvas.rect(x1, y - gap, x2 - x1, fs + 1, fill=1, stroke=0)
|
|
xs.backgrounds = []
|
|
xs.background = 0
|
|
xs.backgroundColor = None
|
|
xs.backgroundFontSize = None
|
|
|
|
# Underline
|
|
yUnderline = y0 - 1.5 * ff
|
|
tx._canvas.setLineWidth(ff * 0.75)
|
|
csc = None
|
|
for x1, x2, c in xs.underlines:
|
|
if c != csc:
|
|
tx._canvas.setStrokeColor(c)
|
|
csc = c
|
|
tx._canvas.line(x1, yUnderline, x2, yUnderline)
|
|
xs.underlines = []
|
|
xs.underline = 0
|
|
xs.underlineColor = None
|
|
|
|
# Strike
|
|
for x1, x2, c, fs in xs.strikes:
|
|
inlineFF = fs * 0.125
|
|
ys = y0 + 2 * inlineFF
|
|
if c != csc:
|
|
tx._canvas.setStrokeColor(c)
|
|
csc = c
|
|
tx._canvas.setLineWidth(inlineFF * 0.75)
|
|
tx._canvas.line(x1, ys, x2, ys)
|
|
xs.strikes = []
|
|
xs.strike = 0
|
|
xs.strikeColor = None
|
|
|
|
yl = y + leading
|
|
for x1, x2, link, _c in xs.links:
|
|
# No automatic underlining for links, never!
|
|
_doLink(tx, link, (x1, y, x2, yl))
|
|
xs.links = []
|
|
xs.link = None
|
|
xs.linkColor = None
|
|
xs.cur_y -= leading
|
|
|
|
|
|
def textTransformFrags(frags, style):
|
|
tt = style.textTransform
|
|
if tt:
|
|
tt = tt.lower()
|
|
if tt == "lowercase":
|
|
tt = str.lower
|
|
elif tt == "uppercase":
|
|
tt = str.upper
|
|
elif tt == "capitalize":
|
|
tt = str.title
|
|
elif tt == "none":
|
|
return
|
|
else:
|
|
raise ValueError(
|
|
"ParaStyle.textTransform value %r is invalid" % style.textTransform
|
|
)
|
|
n = len(frags)
|
|
if n == 1:
|
|
# single fragment the easy case
|
|
frags[0].text = tt(frags[0].text.decode("utf8")).encode("utf8")
|
|
elif tt is str.title:
|
|
pb = True
|
|
for f in frags:
|
|
t = f.text
|
|
if not t:
|
|
continue
|
|
u = t.decode("utf8")
|
|
if u.startswith(" ") or pb:
|
|
u = tt(u)
|
|
else:
|
|
i = u.find(" ")
|
|
if i >= 0:
|
|
u = u[:i] + tt(u[i:])
|
|
pb = u.endswith(" ")
|
|
f.text = u.encode("utf8")
|
|
else:
|
|
for f in frags:
|
|
t = f.text
|
|
if not t:
|
|
continue
|
|
f.text = tt(t.decode("utf8")).encode("utf8")
|
|
|
|
|
|
class cjkU(str): # noqa: SLOT000
|
|
"""simple class to hold the frag corresponding to a str."""
|
|
|
|
def __new__(cls, value, frag, _encoding):
|
|
self = str.__new__(cls, value)
|
|
self._frag = frag
|
|
if hasattr(frag, "cbDefn"):
|
|
w = getattr(frag.cbDefn, "width", 0)
|
|
self._width = w
|
|
else:
|
|
self._width = stringWidth(value, frag.fontName, frag.fontSize)
|
|
return self
|
|
|
|
frag = property(lambda self: self._frag)
|
|
width = property(lambda self: self._width)
|
|
|
|
|
|
def makeCJKParaLine(U, extraSpace, calcBounds):
|
|
words = []
|
|
CW = []
|
|
f0 = FragLine()
|
|
maxSize = maxAscent = minDescent = 0
|
|
for u in U:
|
|
f = u.frag
|
|
fontSize = f.fontSize
|
|
if calcBounds:
|
|
cbDefn = getattr(f, "cbDefn", None)
|
|
if getattr(cbDefn, "width", 0):
|
|
descent, ascent = imgVRange(cbDefn.height, cbDefn.valign, fontSize)
|
|
else:
|
|
ascent, descent = getAscentDescent(f.fontName, fontSize)
|
|
else:
|
|
ascent, descent = getAscentDescent(f.fontName, fontSize)
|
|
maxSize = max(maxSize, fontSize)
|
|
maxAscent = max(maxAscent, ascent)
|
|
minDescent = min(minDescent, descent)
|
|
if not _sameFrag(f0, f):
|
|
f0 = f0.clone()
|
|
f0.text = "".join(CW)
|
|
words.append(f0)
|
|
CW = []
|
|
f0 = f
|
|
CW.append(u)
|
|
if CW:
|
|
f0 = f0.clone()
|
|
f0.text = "".join(CW)
|
|
words.append(f0)
|
|
return FragLine(
|
|
kind=1,
|
|
extraSpace=extraSpace,
|
|
wordCount=1,
|
|
words=words[1:],
|
|
fontSize=maxSize,
|
|
ascent=maxAscent,
|
|
descent=minDescent,
|
|
)
|
|
|
|
|
|
def cjkFragSplit(frags, maxWidths, calcBounds, encoding="utf8"):
|
|
"""This attempts to be wordSplit for frags using the dumb algorithm."""
|
|
U = [] # get a list of single glyphs with their widths etc etc
|
|
for f in frags:
|
|
text = f.text
|
|
if not isinstance(text, str):
|
|
text = text.decode(encoding)
|
|
if text:
|
|
U.extend([cjkU(t, f, encoding) for t in text])
|
|
else:
|
|
U.append(cjkU(text, f, encoding))
|
|
|
|
lines = []
|
|
widthUsed = lineStartPos = 0
|
|
maxWidth = maxWidths[0]
|
|
|
|
for i, u in enumerate(U):
|
|
w = u.width
|
|
widthUsed += w
|
|
lineBreak = hasattr(u.frag, "lineBreak")
|
|
endLine = (widthUsed > maxWidth + _FUZZ and widthUsed > 0) or lineBreak
|
|
if endLine:
|
|
if lineBreak:
|
|
continue
|
|
extraSpace = maxWidth - widthUsed + w
|
|
# This is the most important of the Japanese typography rules.
|
|
# if next character cannot start a line, wrap it up to this line so it hangs
|
|
# in the right margin. We won't do two or more though - that's unlikely and
|
|
# would result in growing ugliness.
|
|
nextChar = U[i]
|
|
if nextChar in ALL_CANNOT_START:
|
|
extraSpace -= w
|
|
i += 1
|
|
lines.append(makeCJKParaLine(U[lineStartPos:i], extraSpace, calcBounds))
|
|
try:
|
|
maxWidth = maxWidths[len(lines)]
|
|
except IndexError:
|
|
maxWidth = maxWidths[-1] # use the last one
|
|
|
|
lineStartPos = i
|
|
widthUsed = w
|
|
i -= 1
|
|
# any characters left?
|
|
if widthUsed > 0:
|
|
lines.append(
|
|
makeCJKParaLine(U[lineStartPos:], maxWidth - widthUsed, calcBounds)
|
|
)
|
|
|
|
return ParaLines(kind=1, lines=lines)
|
|
|
|
|
|
class Paragraph(Flowable):
|
|
"""
|
|
Paragraph(text, style, bulletText=None, caseSensitive=1)
|
|
text a string of stuff to go into the paragraph.
|
|
style is a style definition as in reportlab.lib.styles.
|
|
bulletText is an optional bullet defintion.
|
|
caseSensitive set this to 0 if you want the markup tags and their attributes to be case-insensitive.
|
|
|
|
This class is a flowable that can format a block of text
|
|
into a paragraph with a given style.
|
|
|
|
The paragraph Text can contain XML-like markup including the tags:
|
|
<b> ... </b> - bold
|
|
<i> ... </i> - italics
|
|
<u> ... </u> - underline
|
|
<strike> ... </strike> - strike through
|
|
<super> ... </super> - superscript
|
|
<sub> ... </sub> - subscript
|
|
<font name=fontfamily/fontname color=colorname size=float>
|
|
<onDraw name=callable label="a label">
|
|
<link>link text</link>
|
|
attributes of links
|
|
size/fontSize=num
|
|
name/face/fontName=name
|
|
fg/textColor/color=color
|
|
backcolor/backColor/bgcolor=color
|
|
dest/destination/target/href/link=target
|
|
<a>anchor text</a>
|
|
attributes of anchors
|
|
fontSize=num
|
|
fontName=name
|
|
fg/textColor/color=color
|
|
backcolor/backColor/bgcolor=color
|
|
href=href
|
|
<a name="anchorpoint"/>
|
|
<unichar name="unicode character name"/>
|
|
<unichar value="unicode code point"/>
|
|
<img src="path" width="1in" height="1in" valign="bottom"/>
|
|
|
|
The whole may be surrounded by <para> </para> tags
|
|
|
|
The <b> and <i> tags will work for the built-in fonts (Helvetica
|
|
/Times / Courier). For other fonts you need to register a family
|
|
of 4 fonts using reportlab.pdfbase.pdfmetrics.registerFont; then
|
|
use the addMapping function to tell the library that these 4 fonts
|
|
form a family e.g.
|
|
from reportlab.lib.fonts import addMapping
|
|
addMapping('Vera', 0, 0, 'Vera') #normal
|
|
addMapping('Vera', 0, 1, 'Vera-Italic') #italic
|
|
addMapping('Vera', 1, 0, 'Vera-Bold') #bold
|
|
addMapping('Vera', 1, 1, 'Vera-BoldItalic') #italic and bold
|
|
|
|
It will also be able to handle any MathML specified Greek characters.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
text,
|
|
style,
|
|
bulletText=None,
|
|
frags=None,
|
|
caseSensitive=1,
|
|
encoding="utf8",
|
|
dir="ltr", # noqa: A002
|
|
) -> None:
|
|
self.dir = dir
|
|
self.caseSensitive = caseSensitive
|
|
self.encoding = encoding
|
|
self._setup(text, style, bulletText, frags, cleanBlockQuotedText)
|
|
|
|
def __repr__(self) -> str:
|
|
n = type(self).__name__
|
|
L = [n + "("]
|
|
keys = self.__dict__.keys()
|
|
for k in keys:
|
|
v = getattr(self, k)
|
|
rk = repr(k)
|
|
rv = repr(v)
|
|
rk = " " + rk.replace("\n", "\n ")
|
|
rv = " " + rk.replace("\n", "\n ")
|
|
L.extend((rk, rv))
|
|
L.append(") #" + n)
|
|
return "\n".join(L)
|
|
|
|
def _setup(self, text, style, bulletText, frags, cleaner):
|
|
if frags is None:
|
|
text = cleaner(text)
|
|
_parser.caseSensitive = self.caseSensitive
|
|
style, frags, bulletTextFrags = _parser.parse(text, style)
|
|
if frags is None:
|
|
msg = "xml parser error ({}) in paragraph beginning\n'{}'".format(
|
|
_parser.errors[0], text[: min(30, len(text))]
|
|
)
|
|
raise ValueError(msg)
|
|
textTransformFrags(frags, style)
|
|
if bulletTextFrags:
|
|
bulletText = bulletTextFrags
|
|
|
|
# AR hack
|
|
self.text = text
|
|
self.frags = frags
|
|
self.style = style
|
|
self.bulletText = bulletText
|
|
self.debug = PARAGRAPH_DEBUG # turn this on to see a pretty one with all the margins etc.
|
|
|
|
def wrap(self, availWidth, availHeight):
|
|
if self.debug:
|
|
print(id(self), "wrap")
|
|
try:
|
|
print(repr(self.getPlainText()[:80]))
|
|
except Exception:
|
|
print("???")
|
|
|
|
# work out widths array for breaking
|
|
self.width = availWidth
|
|
style = self.style
|
|
leftIndent = style.leftIndent
|
|
first_line_width = (
|
|
availWidth - (leftIndent + style.firstLineIndent) - style.rightIndent
|
|
)
|
|
later_widths = availWidth - leftIndent - style.rightIndent
|
|
|
|
if style.wordWrap == "CJK":
|
|
# use Asian text wrap algorithm to break characters
|
|
blPara = self.breakLinesCJK([first_line_width, later_widths])
|
|
else:
|
|
blPara = self.breakLines([first_line_width, later_widths])
|
|
self.blPara = blPara
|
|
autoLeading = getattr(self, "autoLeading", getattr(style, "autoLeading", ""))
|
|
leading = style.leading
|
|
if blPara.kind == 1 and autoLeading not in ("", "off"):
|
|
height = 0
|
|
if autoLeading == "max":
|
|
for line in blPara.lines:
|
|
height += max(line.ascent - line.descent, leading)
|
|
elif autoLeading == "min":
|
|
for line in blPara.lines:
|
|
height += line.ascent - line.descent
|
|
else:
|
|
raise ValueError("invalid autoLeading value %r" % autoLeading)
|
|
else:
|
|
if autoLeading == "max":
|
|
leading = max(leading, LEADING_FACTOR * style.fontSize)
|
|
elif autoLeading == "min":
|
|
leading = LEADING_FACTOR * style.fontSize
|
|
height = len(blPara.lines) * leading
|
|
self.height = height
|
|
|
|
return self.width, height
|
|
|
|
def minWidth(self):
|
|
"""Attempt to determine a minimum sensible width."""
|
|
frags = self.frags
|
|
nFrags = len(frags)
|
|
if not nFrags:
|
|
return 0
|
|
if nFrags == 1:
|
|
f = frags[0]
|
|
fS = f.fontSize
|
|
fN = f.fontName
|
|
words = hasattr(f, "text") and split(f.text, " ") or f.words
|
|
|
|
def func(w: list, fS=fS, fN=fN) -> int:
|
|
return stringWidth(w, fN, fS)
|
|
|
|
else:
|
|
words = _getFragWords(frags)
|
|
|
|
def func(w: list, fS=None, fN=None) -> int: # noqa: ARG001
|
|
return w[0]
|
|
|
|
return max(map(func, words))
|
|
|
|
def _get_split_blParaFunc(self) -> Callable:
|
|
return _split_blParaSimple if self.blPara.kind == 0 else _split_blParaHard
|
|
|
|
def split(self, availWidth, availHeight):
|
|
if self.debug:
|
|
print(id(self), "split")
|
|
|
|
if len(self.frags) <= 0:
|
|
return []
|
|
|
|
# the split information is all inside self.blPara
|
|
if not hasattr(self, "blPara"):
|
|
self.wrap(availWidth, availHeight)
|
|
|
|
blPara = self.blPara
|
|
style = self.style
|
|
autoLeading = getattr(self, "autoLeading", getattr(style, "autoLeading", ""))
|
|
leading = style.leading
|
|
lines = blPara.lines
|
|
if blPara.kind == 1 and autoLeading not in ("", "off"):
|
|
s = height = 0
|
|
if autoLeading == "max":
|
|
for i, line in enumerate(blPara.lines):
|
|
h = max(line.ascent - line.descent, leading)
|
|
n = height + h
|
|
if n > availHeight + 1e-8:
|
|
break
|
|
height = n
|
|
s = i + 1
|
|
elif autoLeading == "min":
|
|
for i, line in enumerate(blPara.lines):
|
|
n = height + line.ascent - line.descent
|
|
if n > availHeight + 1e-8:
|
|
break
|
|
height = n
|
|
s = i + 1
|
|
else:
|
|
raise ValueError("invalid autoLeading value %r" % autoLeading)
|
|
else:
|
|
line = leading
|
|
if autoLeading == "max":
|
|
line = max(leading, LEADING_FACTOR * style.fontSize)
|
|
elif autoLeading == "min":
|
|
line = LEADING_FACTOR * style.fontSize
|
|
s = int(availHeight / line)
|
|
height = s * line
|
|
|
|
n = len(lines)
|
|
allowWidows = getattr(self, "allowWidows", getattr(self, "allowWidows", 1))
|
|
allowOrphans = getattr(self, "allowOrphans", getattr(self, "allowOrphans", 0))
|
|
if not allowOrphans and s <= 1: # orphan?
|
|
del self.blPara
|
|
return []
|
|
if n <= s:
|
|
return [self]
|
|
if not allowWidows and n == s + 1: # widow?
|
|
if (allowOrphans and n == 3) or n > 3:
|
|
s -= 1 # give the widow some company
|
|
else:
|
|
del self.blPara # no room for adjustment; force the whole para onwards
|
|
return []
|
|
func = self._get_split_blParaFunc()
|
|
|
|
P1 = type(self)(
|
|
None, style, bulletText=self.bulletText, frags=func(blPara, 0, s)
|
|
)
|
|
# this is a major hack
|
|
P1.blPara = ParaLines(
|
|
kind=1, lines=blPara.lines[0:s], aH=availHeight, aW=availWidth
|
|
)
|
|
P1._JustifyLast = 1
|
|
P1._splitpara = 1
|
|
P1.height = height
|
|
P1.width = availWidth
|
|
if style.firstLineIndent != 0:
|
|
style = deepcopy(style)
|
|
style.firstLineIndent = 0
|
|
P2 = type(self)(None, style, bulletText=None, frags=func(blPara, s, n))
|
|
for a in (
|
|
"autoLeading", # possible attributes that might be directly on self.
|
|
):
|
|
if hasattr(self, a):
|
|
setattr(P1, a, getattr(self, a))
|
|
setattr(P2, a, getattr(self, a))
|
|
return [P1, P2]
|
|
|
|
def draw(self):
|
|
# call another method for historical reasons. Besides, I
|
|
# suspect I will be playing with alternate drawing routines
|
|
# so not doing it here makes it easier to switch.
|
|
self.drawPara(self.debug)
|
|
|
|
def breakLines(self, width):
|
|
"""
|
|
Returns a broken line structure. There are two cases.
|
|
|
|
A) For the simple case of a single formatting input fragment the output is
|
|
A fragment specifier with
|
|
- kind = 0
|
|
- fontName, fontSize, leading, textColor
|
|
- lines= A list of lines
|
|
|
|
Each line has two items.
|
|
|
|
1. unused width in points
|
|
2. word list
|
|
|
|
B) When there is more than one input formatting fragment the output is
|
|
A fragment specifier with
|
|
- kind = 1
|
|
- lines= A list of fragments each having fields
|
|
- extraspace (needed for justified)
|
|
- fontSize
|
|
- words=word list
|
|
each word is itself a fragment with
|
|
various settings
|
|
|
|
This structure can be used to easily draw paragraphs with the various alignments.
|
|
You can supply either a single width or a list of widths; the latter will have its
|
|
last item repeated until necessary. A 2-element list is useful when there is a
|
|
different first line indent; a longer list could be created to facilitate custom wraps
|
|
around irregular objects.
|
|
"""
|
|
if self.debug:
|
|
print(id(self), "breakLines")
|
|
|
|
maxWidths = [width] if not isinstance(width, (tuple, list)) else width
|
|
lines = []
|
|
lineno = 0
|
|
style = self.style
|
|
|
|
# for bullets, work out width and ensure we wrap the right amount onto line one
|
|
_handleBulletWidth(self.bulletText, style, maxWidths)
|
|
|
|
maxWidth = maxWidths[0]
|
|
|
|
self.height = 0
|
|
autoLeading = getattr(self, "autoLeading", getattr(style, "autoLeading", ""))
|
|
calcBounds = autoLeading not in ("", "off")
|
|
frags = self.frags
|
|
nFrags = len(frags)
|
|
if nFrags == 1 and not hasattr(frags[0], "cbDefn"):
|
|
f = frags[0]
|
|
fontSize = f.fontSize
|
|
fontName = f.fontName
|
|
ascent, descent = getAscentDescent(fontName, fontSize)
|
|
words = hasattr(f, "text") and split(f.text, " ") or f.words
|
|
spaceWidth = stringWidth(" ", fontName, fontSize, self.encoding)
|
|
cLine = []
|
|
currentWidth = -spaceWidth # hack to get around extra space for word 1
|
|
for word in words:
|
|
# this underscores my feeling that Unicode throughout would be easier!
|
|
wordWidth = stringWidth(word, fontName, fontSize, self.encoding)
|
|
newWidth = currentWidth + spaceWidth + wordWidth
|
|
if newWidth <= maxWidth or not len(cLine):
|
|
# fit one more on this line
|
|
cLine.append(word)
|
|
currentWidth = newWidth
|
|
else:
|
|
if currentWidth > self.width:
|
|
self.width = currentWidth
|
|
# end of line
|
|
lines.append((maxWidth - currentWidth, cLine))
|
|
cLine = [word]
|
|
currentWidth = wordWidth
|
|
lineno += 1
|
|
try:
|
|
maxWidth = maxWidths[lineno]
|
|
except IndexError:
|
|
maxWidth = maxWidths[-1] # use the last one
|
|
|
|
# deal with any leftovers on the final line
|
|
if cLine != []:
|
|
if currentWidth > self.width:
|
|
self.width = currentWidth
|
|
lines.append((maxWidth - currentWidth, cLine))
|
|
|
|
return f.clone(
|
|
kind=0, lines=lines, ascent=ascent, descent=descent, fontSize=fontSize
|
|
)
|
|
if nFrags <= 0:
|
|
return ParaLines(
|
|
kind=0,
|
|
fontSize=style.fontSize,
|
|
fontName=style.fontName,
|
|
textColor=style.textColor,
|
|
ascent=style.fontSize,
|
|
descent=-0.2 * style.fontSize,
|
|
lines=[],
|
|
)
|
|
if hasattr(self, "blPara") and getattr(self, "_splitpara", 0):
|
|
# NB this is an utter hack that awaits the proper information
|
|
# preserving splitting algorithm
|
|
return self.blPara
|
|
n = 0
|
|
words = []
|
|
frag_words = _getFragWords(frags, reverse=self.dir == "rtl")
|
|
if self.dir == "rtl":
|
|
frag_words.reverse()
|
|
for w in frag_words:
|
|
f = w[-1][0]
|
|
fontName = f.fontName
|
|
fontSize = f.fontSize
|
|
spaceWidth = stringWidth(" ", fontName, fontSize)
|
|
|
|
if not words:
|
|
currentWidth = -spaceWidth # hack to get around extra space for word 1
|
|
maxSize = fontSize
|
|
maxAscent, minDescent = getAscentDescent(fontName, fontSize)
|
|
|
|
wordWidth = w[0]
|
|
f = w[1][0]
|
|
if wordWidth > 0:
|
|
newWidth = currentWidth + spaceWidth + wordWidth
|
|
else:
|
|
newWidth = currentWidth
|
|
|
|
# test to see if this frag is a line break. If it is we will only act on it
|
|
# if the current width is non-negative or the previous thing was a deliberate lineBreak
|
|
lineBreak = hasattr(f, "lineBreak")
|
|
endLine = (newWidth > maxWidth and n > 0) or lineBreak
|
|
if not endLine:
|
|
if lineBreak:
|
|
continue # throw it away
|
|
nText = w[1][1] if isinstance(w[1][1], str) else str(w[1][1], "utf-8")
|
|
|
|
if nText:
|
|
n += 1
|
|
fontSize = f.fontSize
|
|
if calcBounds:
|
|
cbDefn = getattr(f, "cbDefn", None)
|
|
if getattr(cbDefn, "width", 0):
|
|
descent, ascent = imgVRange(
|
|
cbDefn.height, cbDefn.valign, fontSize
|
|
)
|
|
else:
|
|
ascent, descent = getAscentDescent(f.fontName, fontSize)
|
|
else:
|
|
ascent, descent = getAscentDescent(f.fontName, fontSize)
|
|
maxSize = max(maxSize, fontSize)
|
|
maxAscent = max(maxAscent, ascent)
|
|
minDescent = min(minDescent, descent)
|
|
if not words:
|
|
g = f.clone()
|
|
words = [g]
|
|
g.text = nText
|
|
elif not _sameFrag(g, f):
|
|
if currentWidth > 0 and (
|
|
(nText and not nText.startswith(" ")) or hasattr(f, "cbDefn")
|
|
):
|
|
if hasattr(g, "cbDefn"):
|
|
i = len(words) - 1
|
|
while i >= 0:
|
|
wi = words[i]
|
|
cbDefn = getattr(wi, "cbDefn", None)
|
|
if cbDefn and not getattr(cbDefn, "width", 0):
|
|
i -= 1
|
|
continue
|
|
if not wi.text.endswith(" "):
|
|
wi.text += " "
|
|
break
|
|
else:
|
|
space = " " if isinstance(g.text, str) else b" "
|
|
if not g.text.endswith(space):
|
|
g.text += space
|
|
g = f.clone()
|
|
words.append(g)
|
|
g.text = nText
|
|
else:
|
|
if isinstance(g.text, bytes):
|
|
g.text = g.text.decode("utf8")
|
|
if isinstance(nText, bytes):
|
|
nText = nText.decode("utf8")
|
|
if nText and not nText.startswith(" "):
|
|
g.text += " " + nText
|
|
|
|
for i in w[2:]:
|
|
g = i[0].clone()
|
|
g.text = i[1]
|
|
words.append(g)
|
|
fontSize = g.fontSize
|
|
if calcBounds:
|
|
cbDefn = getattr(g, "cbDefn", None)
|
|
if getattr(cbDefn, "width", 0):
|
|
descent, ascent = imgVRange(
|
|
cbDefn.height, cbDefn.valign, fontSize
|
|
)
|
|
else:
|
|
ascent, descent = getAscentDescent(g.fontName, fontSize)
|
|
else:
|
|
ascent, descent = getAscentDescent(g.fontName, fontSize)
|
|
maxSize = max(maxSize, fontSize)
|
|
maxAscent = max(maxAscent, ascent)
|
|
minDescent = min(minDescent, descent)
|
|
|
|
currentWidth = newWidth
|
|
else: # either it won't fit, or it's a lineBreak tag
|
|
if lineBreak:
|
|
g = f.clone()
|
|
words.append(g)
|
|
|
|
if currentWidth > self.width:
|
|
self.width = currentWidth
|
|
# end of line
|
|
lines.append(
|
|
FragLine(
|
|
extraSpace=maxWidth - currentWidth,
|
|
wordCount=n,
|
|
lineBreak=lineBreak,
|
|
words=words,
|
|
fontSize=maxSize,
|
|
ascent=maxAscent,
|
|
descent=minDescent,
|
|
)
|
|
)
|
|
|
|
# start new line
|
|
lineno += 1
|
|
try:
|
|
maxWidth = maxWidths[lineno]
|
|
except IndexError:
|
|
maxWidth = maxWidths[-1] # use the last one
|
|
|
|
if lineBreak:
|
|
n = 0
|
|
words = []
|
|
continue
|
|
|
|
currentWidth = wordWidth
|
|
n = 1
|
|
g = f.clone()
|
|
maxSize = g.fontSize
|
|
if calcBounds:
|
|
cbDefn = getattr(g, "cbDefn", None)
|
|
if getattr(cbDefn, "width", 0):
|
|
minDescent, maxAscent = imgVRange(
|
|
cbDefn.height, cbDefn.valign, maxSize
|
|
)
|
|
else:
|
|
maxAscent, minDescent = getAscentDescent(g.fontName, maxSize)
|
|
else:
|
|
maxAscent, minDescent = getAscentDescent(g.fontName, maxSize)
|
|
words = [g]
|
|
g.text = w[1][1]
|
|
|
|
for i in w[2:]:
|
|
g = i[0].clone()
|
|
g.text = i[1]
|
|
words.append(g)
|
|
fontSize = g.fontSize
|
|
if calcBounds:
|
|
cbDefn = getattr(g, "cbDefn", None)
|
|
if getattr(cbDefn, "width", 0):
|
|
descent, ascent = imgVRange(
|
|
cbDefn.height, cbDefn.valign, fontSize
|
|
)
|
|
else:
|
|
ascent, descent = getAscentDescent(g.fontName, fontSize)
|
|
else:
|
|
ascent, descent = getAscentDescent(g.fontName, fontSize)
|
|
maxSize = max(maxSize, fontSize)
|
|
maxAscent = max(maxAscent, ascent)
|
|
minDescent = min(minDescent, descent)
|
|
|
|
# deal with any leftovers on the final line
|
|
if words != []:
|
|
if currentWidth > self.width:
|
|
self.width = currentWidth
|
|
lines.append(
|
|
ParaLines(
|
|
extraSpace=(maxWidth - currentWidth),
|
|
wordCount=n,
|
|
words=words,
|
|
fontSize=maxSize,
|
|
ascent=maxAscent,
|
|
descent=minDescent,
|
|
)
|
|
)
|
|
return ParaLines(kind=1, lines=lines)
|
|
|
|
def breakLinesCJK(self, width):
|
|
"""
|
|
Initially, the dumbest possible wrapping algorithm.
|
|
Cannot handle font variations.
|
|
"""
|
|
if self.debug:
|
|
print(id(self), "breakLinesCJK")
|
|
|
|
maxWidths = width if isinstance(width, (list, tuple)) else [width]
|
|
style = self.style
|
|
|
|
# for bullets, work out width and ensure we wrap the right amount onto line one
|
|
_handleBulletWidth(self.bulletText, style, maxWidths)
|
|
if len(self.frags) > 1:
|
|
autoLeading = getattr(
|
|
self, "autoLeading", getattr(style, "autoLeading", "")
|
|
)
|
|
calcBounds = autoLeading not in ("", "off")
|
|
return cjkFragSplit(self.frags, maxWidths, calcBounds, self.encoding)
|
|
|
|
if not len(self.frags):
|
|
return ParaLines(
|
|
kind=0,
|
|
fontSize=style.fontSize,
|
|
fontName=style.fontName,
|
|
textColor=style.textColor,
|
|
lines=[],
|
|
ascent=style.fontSize,
|
|
descent=-0.2 * style.fontSize,
|
|
)
|
|
f = self.frags[0]
|
|
if 1 and hasattr(self, "blPara") and getattr(self, "_splitpara", 0):
|
|
# NB this is an utter hack that awaits the proper information
|
|
# preserving splitting algorithm
|
|
return f.clone(kind=0, lines=self.blPara.lines)
|
|
lines = []
|
|
|
|
self.height = 0
|
|
|
|
f = self.frags[0]
|
|
|
|
text = f.text if hasattr(f, "text") else "".join(getattr(f, "words", []))
|
|
|
|
from reportlab.lib.textsplit import wordSplit
|
|
|
|
lines = wordSplit(text, maxWidths[0], f.fontName, f.fontSize)
|
|
# the paragraph drawing routine assumes multiple frags per line, so we need an
|
|
# extra list like this
|
|
# [space, [text]]
|
|
#
|
|
wrappedLines = [(sp, [line]) for (sp, line) in lines]
|
|
return f.clone(
|
|
kind=0, lines=wrappedLines, ascent=f.fontSize, descent=-0.2 * f.fontSize
|
|
)
|
|
|
|
def beginText(self, x, y):
|
|
return self.canv.beginText(x, y)
|
|
|
|
def drawPara(self, debug=0):
|
|
"""
|
|
Draws a paragraph according to the given style.
|
|
Returns the final y position at the bottom. Not safe for
|
|
paragraphs without spaces e.g. Japanese; wrapping
|
|
algorithm will go infinite.
|
|
"""
|
|
if self.debug:
|
|
print(id(self), "drawPara", self.blPara.kind)
|
|
|
|
# stash the key facts locally for speed
|
|
canvas = self.canv
|
|
style = self.style
|
|
blPara = self.blPara
|
|
lines = blPara.lines
|
|
leading = style.leading
|
|
autoLeading = getattr(self, "autoLeading", getattr(style, "autoLeading", ""))
|
|
|
|
# work out the origin for line 1
|
|
leftIndent = style.leftIndent
|
|
cur_x = leftIndent
|
|
|
|
if debug:
|
|
bw = 0.5
|
|
bc = Color(1, 1, 0)
|
|
bg = Color(0.9, 0.9, 0.9)
|
|
else:
|
|
bw = getattr(style, "borderWidth", None)
|
|
bc = getattr(style, "borderColor", None)
|
|
bg = style.backColor
|
|
|
|
# if has a background or border, draw it
|
|
if bg or (bc and bw):
|
|
canvas.saveState()
|
|
op = canvas.rect
|
|
kwds = {"fill": 0, "stroke": 0}
|
|
if bc and bw:
|
|
canvas.setStrokeColor(bc)
|
|
canvas.setLineWidth(bw)
|
|
kwds["stroke"] = 1
|
|
br = getattr(style, "borderRadius", 0)
|
|
if br and not debug:
|
|
op = canvas.roundRect
|
|
kwds["radius"] = br
|
|
if bg:
|
|
canvas.setFillColor(bg)
|
|
kwds["fill"] = 1
|
|
bp = getattr(style, "borderPadding", 0)
|
|
op(
|
|
leftIndent - bp,
|
|
-bp,
|
|
self.width - (leftIndent + style.rightIndent) + 2 * bp,
|
|
self.height + 2 * bp,
|
|
**kwds,
|
|
)
|
|
canvas.restoreState()
|
|
|
|
nLines = len(lines)
|
|
bulletText = self.bulletText
|
|
if nLines > 0:
|
|
_offsets = getattr(self, "_offsets", [0])
|
|
_offsets += (nLines - len(_offsets)) * [_offsets[-1]]
|
|
canvas.saveState()
|
|
alignment = style.alignment
|
|
offset = style.firstLineIndent + _offsets[0]
|
|
lim = nLines - 1
|
|
noJustifyLast = not (hasattr(self, "_JustifyLast") and self._JustifyLast)
|
|
|
|
if blPara.kind == 0:
|
|
if alignment == TA_LEFT:
|
|
dpl = _leftDrawParaLine
|
|
elif alignment == TA_CENTER:
|
|
dpl = _centerDrawParaLine
|
|
elif self.style.alignment == TA_RIGHT:
|
|
dpl = _rightDrawParaLine
|
|
elif self.style.alignment == TA_JUSTIFY:
|
|
dpl = _justifyDrawParaLine
|
|
f = blPara
|
|
cur_y = self.height - getattr(
|
|
f, "ascent", f.fontSize
|
|
) # TODO fix XPreformatted to remove this hack
|
|
if bulletText:
|
|
offset = _drawBullet(canvas, offset, cur_y, bulletText, style)
|
|
|
|
# set up the font etc.
|
|
canvas.setFillColor(f.textColor)
|
|
|
|
tx = self.beginText(cur_x, cur_y)
|
|
if autoLeading == "max":
|
|
leading = max(leading, LEADING_FACTOR * f.fontSize)
|
|
elif autoLeading == "min":
|
|
leading = LEADING_FACTOR * f.fontSize
|
|
|
|
# now the font for the rest of the paragraph
|
|
tx.setFont(f.fontName, f.fontSize, leading)
|
|
ws = getattr(tx, "_wordSpace", 0)
|
|
t_off = dpl(tx, offset, ws, lines[0][1], noJustifyLast and nLines == 1)
|
|
if (
|
|
(hasattr(f, "underline") and f.underline)
|
|
or f.link
|
|
or (hasattr(f, "strike") and f.strike)
|
|
):
|
|
xs = tx.XtraState = ABag()
|
|
xs.cur_y = cur_y
|
|
xs.f = f
|
|
xs.style = style
|
|
xs.lines = lines
|
|
xs.underlines = []
|
|
xs.underlineColor = None
|
|
# XXX Modified for XHTML2PDF
|
|
xs.backgrounds = []
|
|
xs.backgroundColor = None
|
|
xs.backgroundFontSize = None
|
|
xs.strikes = []
|
|
xs.strikeColor = None
|
|
# XXX Modified for XHTML2PDF
|
|
xs.strikeFontSize = None
|
|
xs.links = []
|
|
xs.link = f.link
|
|
canvas.setStrokeColor(f.textColor)
|
|
dx = t_off + leftIndent
|
|
if dpl != _justifyDrawParaLine:
|
|
ws = 0
|
|
# XXX Never underline!
|
|
underline = f.underline
|
|
strike = f.strike
|
|
link = f.link
|
|
if underline:
|
|
_do_under_line(0, dx, ws, tx)
|
|
if strike:
|
|
_do_under_line(0, dx, ws, tx, lm=0.125)
|
|
if link:
|
|
_do_link_line(0, dx, ws, tx)
|
|
|
|
# now the middle of the paragraph, aligned with the left margin which is our origin.
|
|
for i in range(1, nLines):
|
|
ws = lines[i][0]
|
|
t_off = dpl(
|
|
tx, _offsets[i], ws, lines[i][1], noJustifyLast and i == lim
|
|
)
|
|
if dpl != _justifyDrawParaLine:
|
|
ws = 0
|
|
if underline:
|
|
_do_under_line(i, t_off + leftIndent, ws, tx)
|
|
if strike:
|
|
_do_under_line(i, t_off + leftIndent, ws, tx, lm=0.125)
|
|
if link:
|
|
_do_link_line(i, t_off + leftIndent, ws, tx)
|
|
else:
|
|
for i in range(1, nLines):
|
|
dpl(
|
|
tx,
|
|
_offsets[i],
|
|
lines[i][0],
|
|
lines[i][1],
|
|
noJustifyLast and i == lim,
|
|
)
|
|
else:
|
|
f = lines[0]
|
|
cur_y = self.height - getattr(
|
|
f, "ascent", f.fontSize
|
|
) # TODO fix XPreformatted to remove this hack
|
|
# default?
|
|
dpl = _leftDrawParaLineX
|
|
if bulletText:
|
|
offset = _drawBullet(canvas, offset, cur_y, bulletText, style)
|
|
if alignment == TA_LEFT:
|
|
dpl = _leftDrawParaLineX
|
|
elif alignment == TA_CENTER:
|
|
dpl = _centerDrawParaLineX
|
|
elif self.style.alignment == TA_RIGHT:
|
|
dpl = _rightDrawParaLineX
|
|
elif self.style.alignment == TA_JUSTIFY:
|
|
dpl = _justifyDrawParaLineX
|
|
else:
|
|
raise ValueError("bad align %s" % repr(alignment))
|
|
|
|
# set up the font etc.
|
|
tx = self.beginText(cur_x, cur_y)
|
|
xs = tx.XtraState = ABag()
|
|
xs.textColor = None
|
|
# XXX Modified for XHTML2PDF
|
|
xs.backColor = None
|
|
xs.rise = 0
|
|
xs.underline = 0
|
|
xs.underlines = []
|
|
xs.underlineColor = None
|
|
# XXX Modified for XHTML2PDF
|
|
xs.background = 0
|
|
xs.backgrounds = []
|
|
xs.backgroundColor = None
|
|
xs.backgroundFontSize = None
|
|
xs.strike = 0
|
|
xs.strikes = []
|
|
xs.strikeColor = None
|
|
# XXX Modified for XHTML2PDF
|
|
xs.strikeFontSize = None
|
|
xs.links = []
|
|
xs.link = None
|
|
xs.leading = style.leading
|
|
xs.leftIndent = leftIndent
|
|
tx._leading = None
|
|
tx._olb = None
|
|
xs.cur_y = cur_y
|
|
xs.f = f
|
|
xs.style = style
|
|
xs.autoLeading = autoLeading
|
|
|
|
tx._fontname, tx._fontsize = None, None
|
|
dpl(tx, offset, lines[0], noJustifyLast and nLines == 1)
|
|
_do_post_text(tx)
|
|
|
|
# now the middle of the paragraph, aligned with the left margin which is our origin.
|
|
for i in range(1, nLines):
|
|
f = lines[i]
|
|
dpl(tx, _offsets[i], f, noJustifyLast and i == lim)
|
|
_do_post_text(tx)
|
|
|
|
canvas.drawText(tx)
|
|
canvas.restoreState()
|
|
|
|
def getPlainText(self, identify=None):
|
|
"""
|
|
Convenience function for templates which want access
|
|
to the raw text, without XML tags.
|
|
"""
|
|
frags = getattr(self, "frags", None)
|
|
if frags:
|
|
return "".join([frag.text] for frag in frags if hasattr(frag, "text"))
|
|
if identify:
|
|
text = getattr(self, "text", None)
|
|
if text is None:
|
|
text = repr(self)
|
|
return text
|
|
return ""
|
|
|
|
def getActualLineWidths0(self):
|
|
"""
|
|
Convenience function; tells you how wide each line
|
|
actually is. For justified styles, this will be
|
|
the same as the wrap width; for others it might be
|
|
useful for seeing if paragraphs will fit in spaces.
|
|
"""
|
|
assert hasattr(self, "width"), "Cannot call this method before wrap()"
|
|
if self.blPara.kind:
|
|
|
|
def func(frag, w=self.width):
|
|
return w - frag.extraSpace
|
|
|
|
else:
|
|
|
|
def func(frag, w=self.width):
|
|
return w - frag[0]
|
|
|
|
return map(func, self.blPara.lines)
|
|
|
|
|
|
if __name__ == "__main__": # NORUNTESTS
|
|
|
|
def dumpParagraphLines(P):
|
|
print(f"dumpParagraphLines(<Paragraph @ {id(P)}>)")
|
|
lines = P.blPara.lines
|
|
for i, line in enumerate(lines):
|
|
line = lines[i]
|
|
words = line.words if hasattr(line, "words") else line[1]
|
|
nwords = len(words)
|
|
wordcount = getattr(line, "wordCount", "Unknown")
|
|
print(f"line{i}: {nwords}({wordcount})\n ")
|
|
for w in range(nwords):
|
|
text = getattr(words[w], "text", words[w])
|
|
print(f"{w}:'{text}'")
|
|
print()
|
|
|
|
def fragDump(w):
|
|
attrs = (
|
|
"fontName",
|
|
"fontSize",
|
|
"textColor",
|
|
"rise",
|
|
"underline",
|
|
"strike",
|
|
"link",
|
|
"cbDefn",
|
|
"lineBreak",
|
|
)
|
|
attr_list = [f"'{w[1]}'"] + [
|
|
f"{a}={getattr(w[0], a)!r}" for a in attrs if hasattr(w[0], a)
|
|
]
|
|
return ", ".join(attr_list)
|
|
|
|
def dumpParagraphFrags(P):
|
|
print(
|
|
f"dumpParagraphFrags(<Paragraph @ {id(P)}>) minWidth() = {P.minWidth():.2f}"
|
|
)
|
|
frags = P.frags
|
|
n = len(frags)
|
|
for frag in range(n):
|
|
detail = " ".join(
|
|
[
|
|
f"{k}={getattr(frags[frag], k)}"
|
|
for k in frags[frag].__dict__
|
|
if k != text
|
|
]
|
|
)
|
|
print(f"frag{frag}: '{frags[frag].text}' {detail}")
|
|
|
|
fragword = 0
|
|
cum = 0
|
|
for W in _getFragWords(frags):
|
|
cum += W[0]
|
|
print(f"fragword{fragword}: cum={cum:3d} size={W[0]}")
|
|
for w in W[1:]:
|
|
print(f"({fragDump(w)})")
|
|
print()
|
|
fragword += 1
|
|
|
|
from reportlab.lib.styles import ParagraphStyle, getSampleStyleSheet
|
|
from reportlab.lib.units import cm
|
|
|
|
TESTS = sys.argv[1:]
|
|
if [] == TESTS:
|
|
TESTS = ["4"]
|
|
|
|
def flagged(i, TESTS=TESTS):
|
|
return "all" in TESTS or "*" in TESTS or str(i) in TESTS
|
|
|
|
styleSheet = getSampleStyleSheet()
|
|
B = styleSheet["BodyText"]
|
|
style = ParagraphStyle("discussiontext", parent=B)
|
|
style.fontName = "Helvetica"
|
|
if flagged(1):
|
|
text = """The <font name=courier color=green>CMYK</font> or subtractive method follows the way a printer
|
|
mixes three pigments (cyan, magenta, and yellow) to form colors.
|
|
Because mixing chemicals is more difficult than combining light there
|
|
is a fourth parameter for darkness. For example a chemical
|
|
combination of the <font name=courier color=green>CMY</font> pigments generally never makes a perfect
|
|
black -- instead producing a muddy color -- so, to get black printers
|
|
don't use the <font name=courier color=green>CMY</font> pigments but use a direct black ink. Because
|
|
<font name=courier color=green>CMYK</font> maps more directly to the way printer hardware works it may
|
|
be the case that &| & | colors specified in <font name=courier color=green>CMYK</font> will provide better fidelity
|
|
and better control when printed.
|
|
"""
|
|
P = Paragraph(text, style)
|
|
dumpParagraphFrags(P)
|
|
aW, aH = 456.0, 42.8
|
|
w, h = P.wrap(aW, aH)
|
|
dumpParagraphLines(P)
|
|
S = P.split(aW, aH)
|
|
for s in S:
|
|
s.wrap(aW, aH)
|
|
dumpParagraphLines(s)
|
|
aH = 500
|
|
|
|
if flagged(2):
|
|
P = Paragraph(
|
|
"""Price<super><font color="red">*</font></super>""", styleSheet["Normal"]
|
|
)
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(24, 200)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(3):
|
|
text = """Dieses Kapitel bietet eine schnelle <b><font color=red>Programme :: starten</font></b>
|
|
<onDraw name=myIndex label="Programme :: starten">
|
|
<b><font color=red>Eingabeaufforderung :: (>>>)</font></b>
|
|
<onDraw name=myIndex label="Eingabeaufforderung :: (>>>)">
|
|
<b><font color=red>>>> (Eingabeaufforderung)</font></b>
|
|
<onDraw name=myIndex label=">>> (Eingabeaufforderung)">
|
|
Einführung in Python <b><font color=red>Python :: Einführung</font></b>
|
|
<onDraw name=myIndex label="Python :: Einführung">.
|
|
Das Ziel ist, die grundlegenden Eigenschaften von Python darzustellen, ohne
|
|
sich zu sehr in speziellen Regeln oder Details zu verstricken. Dazu behandelt
|
|
dieses Kapitel kurz die wesentlichen Konzepte wie Variablen, Ausdrücke,
|
|
Kontrollfluss, Funktionen sowie Ein- und Ausgabe. Es erhebt nicht den Anspruch,
|
|
umfassend zu sein."""
|
|
P = Paragraph(text, styleSheet["Code"])
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * 72, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(4):
|
|
text = """Die eingebaute Funktion <font name=Courier>range(i, j [, stride])</font><onDraw name=myIndex label="eingebaute Funktionen::range()"><onDraw name=myIndex label="range() (Funktion)"><onDraw name=myIndex label="Funktionen::range()"> erzeugt eine Liste von Ganzzahlen und füllt sie mit Werten <font name=Courier>k</font>, für die gilt: <font name=Courier>i <= k < j</font>. Man kann auch eine optionale Schrittweite angeben. Die eingebaute Funktion <font name=Courier>xrange()</font><onDraw name=myIndex label="eingebaute Funktionen::xrange()"><onDraw name=myIndex label="xrange() (Funktion)"><onDraw name=myIndex label="Funktionen::xrange()"> erfüllt einen ähnlichen Zweck, gibt aber eine unveränderliche Sequenz vom Typ <font name=Courier>XRangeType</font><onDraw name=myIndex label="XRangeType"> zurück. Anstatt alle Werte in der Liste abzuspeichern, berechnet diese Liste ihre Werte, wann immer sie angefordert werden. Das ist sehr viel speicherschonender, wenn mit sehr langen Listen von Ganzzahlen gearbeitet wird. <font name=Courier>XRangeType</font> kennt eine einzige Methode, <font name=Courier>s.tolist()</font><onDraw name=myIndex label="XRangeType::tolist() (Methode)"><onDraw name=myIndex label="s.tolist() (Methode)"><onDraw name=myIndex label="Methoden::s.tolist()">, die seine Werte in eine Liste umwandelt."""
|
|
aW = 420
|
|
aH = 64.4
|
|
P = Paragraph(text, B)
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(aW, aH)
|
|
print("After initial wrap", w, h)
|
|
dumpParagraphLines(P)
|
|
S = P.split(aW, aH)
|
|
dumpParagraphFrags(S[0])
|
|
w0, h0 = S[0].wrap(aW, aH)
|
|
print("After split wrap", w0, h0)
|
|
dumpParagraphLines(S[0])
|
|
|
|
if flagged(5):
|
|
text = f"<para> {chr(163)} <![CDATA[</font></b>& {chr(163)} < >]]></para>"
|
|
P = Paragraph(text, styleSheet["Code"])
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * 72, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(6):
|
|
for text in [
|
|
"""Here comes <FONT FACE="Helvetica" SIZE="14pt">Helvetica 14</FONT> with <STRONG>strong</STRONG> <EM>emphasis</EM>.""",
|
|
"""Here comes <font face="Helvetica" size="14pt">Helvetica 14</font> with <Strong>strong</Strong> <em>emphasis</em>.""",
|
|
"""Here comes <font face="Courier" size="3cm">Courier 3cm</font> and normal again.""",
|
|
]:
|
|
P = Paragraph(text, styleSheet["Normal"], caseSensitive=0)
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * 72, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(7):
|
|
text = """<para align="CENTER" fontSize="24" leading="30"><b>Generated by:</b>Dilbert</para>"""
|
|
P = Paragraph(text, styleSheet["Code"])
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * 72, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(8):
|
|
text = """- bullet 0<br/>- bullet 1<br/>- bullet 2<br/>- bullet 3<br/>- bullet 4<br/>- bullet 5"""
|
|
P = Paragraph(text, styleSheet["Normal"])
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * 72, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
S = P.split(6 * 72, h / 2.0)
|
|
print(len(S))
|
|
dumpParagraphLines(S[0])
|
|
dumpParagraphLines(S[1])
|
|
|
|
if flagged(9):
|
|
text = """Furthermore, the fundamental error of
|
|
regarding <img src="../docs/images/testimg.gif" width="3" height="7"/> functional notions as
|
|
categorial delimits a general
|
|
convention regarding the forms of the<br/>
|
|
grammar. I suggested that these results
|
|
would follow from the assumption that"""
|
|
P = Paragraph(
|
|
text, ParagraphStyle("aaa", parent=styleSheet["Normal"], align=TA_JUSTIFY)
|
|
)
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * cm - 12, 9.7 * 72)
|
|
dumpParagraphLines(P)
|
|
|
|
if flagged(10):
|
|
text = """a b c\xc2\xa0d e f"""
|
|
P = Paragraph(
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|
text, ParagraphStyle("aaa", parent=styleSheet["Normal"], align=TA_JUSTIFY)
|
|
)
|
|
dumpParagraphFrags(P)
|
|
w, h = P.wrap(6 * cm - 12, 9.7 * 72)
|
|
dumpParagraphLines(P)
|