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2ba8705435
In the old script the output path given on the command line was ignored, because of teh way how dvisgm expects commandline options.
227 lines
8.1 KiB
Python
Executable File
227 lines
8.1 KiB
Python
Executable File
#! /usr/bin/env python
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# -*- coding: utf-8 -*-
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# file generate_symbols_images.py
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# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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# author Georg Baum
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# author Juergen Spitzmueller (adaptation for SVG)
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# Full author contact details are available in file CREDITS
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# This script generates a toolbar image for each missing math symbol.
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# It needs the template document generate_symbols_images.lyx for generating
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# the png image via preview.sty and dvipng, or the template document
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# generate_symbols_svg.lyx for generating the SVG image via dvisvgm.
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# Either document must contain the placeholder formula '$a$'.
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# The created images are not always optimal, therefore the existing manually
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# created images should never be replaced by automatically created ones.
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from __future__ import print_function
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import os, re, string, sys, subprocess, tempfile, shutil
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import Image
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import io
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def usage(prog_name):
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return ("Usage: %s png|svg lyxexe outputpath\n" % prog_name)
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def error(message):
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sys.stderr.write(message + '\n')
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sys.exit(1)
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def getlist(lyxexe, lyxfile):
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""" Call LyX and get a list of symbols from mathed debug output.
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This way, we can re-use the symbols file parser of LyX, and do not
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need to reimplement it in python. """
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# The debug is only generated if lyxfile contains a formula
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cmd = "%s %s -dbg mathed -x lyx-quit" % (lyxexe, lyxfile)
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proc = subprocess.Popen(cmd, shell=True, stderr=subprocess.PIPE)
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(stdout, stderr) = proc.communicate()
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regexp = re.compile(r'.*: read symbol \'(\S+)\s+inset:\s+(\S+)\s+draw:\s+(\S*)\s+extra:\s+(\S+)')
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# These insets are more complex than simply symbols, so the images need to
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# be created manually
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skipinsets = ['big', 'font', 'lyxblacktext', 'matrix', 'mbox', 'oldfont', \
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'ref', 'split', 'space', 'style']
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mathsymbols = []
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textsymbols = []
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for line in stderr.split('\n'):
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m = regexp.match(line)
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if m:
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inset = m.group(2)
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if not inset in skipinsets:
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if m.group(4) == 'textmode':
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textsymbols.append(m.group(1))
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else:
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mathsymbols.append(m.group(1))
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return (mathsymbols, textsymbols)
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def getreplacements(filename):
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replacements = {}
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replacements['|'] = 'vert'
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replacements['/'] = 'slash'
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replacements['\\'] = 'backslash'
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replacements['*'] = 'ast'
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replacements['AA'] = 'textrm_AA'
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replacements['O'] = 'textrm_O'
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cppfile = io.open(filename, 'r', encoding='utf_8')
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regexp = re.compile(r'.*"([^"]+)",\s*"([^"]+)"')
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found = False
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for line in cppfile.readlines():
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if found:
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m = regexp.match(line)
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if m:
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replacements[m.group(1)] = m.group(2)
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else:
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return replacements
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elif line.find('ImgMap sorted_img_map') == 0:
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found = True
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def gettoolbaritems(filename):
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items = []
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uifile = io.open(filename, 'r', encoding='utf_8')
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regexp = re.compile(r'.*Item "([^"\[]+)(\[\[[^\]]+\]\])?"\s*"math-insert\s+([^"]+)"')
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for line in uifile.readlines():
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m = regexp.match(line)
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if m:
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if '\\' + m.group(1) == m.group(3):
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items.append(m.group(1))
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return items
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def getmakefileentries(filename):
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items = []
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makefile = io.open(filename, 'r', encoding='utf_8')
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regexp = re.compile(r'.*images/math/(.+)\.(png|svgz)')
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for line in makefile.readlines():
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m = regexp.match(line)
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if m:
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items.append(m.group(1))
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return items
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def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolbaritems, makefileentries, usepng):
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""" Create the image file for symbol name in path. """
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if name in replacements.keys():
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filename = replacements[name]
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elif name.startswith('lyx'):
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print('Skipping ' + name)
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return
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else:
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skipchars = ['|', '/', '\\', '*', '!', '?', ':', ';', '^', '<', '>']
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for i in skipchars:
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if name.find(i) >= 0:
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print('Skipping ' + name)
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return
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filename = name
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if usepng:
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imgname = os.path.join(path, filename + '.png')
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else:
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imgname = os.path.join(path, filename + '.svgz')
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if name in toolbaritems:
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if filename in makefileentries:
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suffix = ' (found in toolbar and makefile)'
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else:
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suffix = ' (found in only in toolbar)'
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else:
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if filename in makefileentries:
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suffix = ' (found only in makefile)'
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else:
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suffix = ' (not found)'
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if os.path.exists(imgname):
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print('Skipping ' + name + suffix)
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return
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print('Generating ' + name + suffix)
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lyxname = os.path.join(tempdir, filename)
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lyxfile = io.open(lyxname + '.lyx', 'w', encoding='utf_8')
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if math:
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lyxfile.write(template.replace('$a$', '$\\' + name + '$'))
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else:
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lyxfile.write(template.replace('$a$', '$\\text{\\' + name + '}$'))
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lyxfile.close()
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cmd = "%s %s.lyx -e dvi" % (lyxexe, lyxname)
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proc = subprocess.Popen(cmd, shell=True)
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proc.wait()
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if proc.returncode != 0:
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print('Error in DVI creation for ' + name)
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return
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# The magnifaction factor is calculated such that we get an image of
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# height 18 px for most symbols and document font size 11. Then we can
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# add a small border to get the standard math image height of 20 px.
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if usepng:
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cmd = "dvipng %s.dvi -bg Transparent -D 115 -o %s" % (lyxname, imgname)
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else:
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cmd = "dvisvgm -z --no-fonts --exact --output=%s%s%%f %s.dvi" % (path, os.path.sep, lyxname)
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proc = subprocess.Popen(cmd, shell=True)
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proc.wait()
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if proc.returncode != 0:
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if png:
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print('Error in PNG creation for ' + name)
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else:
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print('Error in SVG creation for ' + name)
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return
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if not usepng:
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return
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image = Image.open(imgname)
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(width, height) = image.size
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if width < 20 and height < 20:
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if width == 19 and height == 19:
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padded = Image.new('RGBA', (width+1, height+1), (0, 0, 0, 0))
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padded.paste(image, (0, 0))
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elif width == 19:
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padded = Image.new('RGBA', (width+1, height+2), (0, 0, 0, 0))
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padded.paste(image, (0, 1))
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elif height == 19:
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padded = Image.new('RGBA', (width+2, height+1), (0, 0, 0, 0))
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padded.paste(image, (1, 0))
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else:
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padded = Image.new('RGBA', (width+2, height+2), (0, 0, 0, 0))
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padded.paste(image, (1, 1))
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padded.convert(image.mode)
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padded.save(imgname, "PNG")
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def main(argv):
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if len(argv) == 4:
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(base, ext) = os.path.splitext(argv[0])
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(mathsymbols, textsymbols) = getlist(argv[2], base)
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cppfile = os.path.join(os.path.dirname(base), '../../src/frontends/qt4/GuiApplication.cpp')
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replacements = getreplacements(cppfile)
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uifile = os.path.join(os.path.dirname(base), '../../lib/ui/stdtoolbars.inc')
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toolbaritems = gettoolbaritems(uifile)
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makefile = os.path.join(os.path.dirname(base), '../../lib/Makefile.am')
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makefileentries = getmakefileentries(makefile)
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if argv[1] == 'png':
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lyxtemplate = base + '.lyx'
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usepng = True
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elif argv[1] == 'svg':
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lyxtemplate = os.path.join(os.path.dirname(base), 'generate_symbols_svg.lyx')
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usepng = False
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else:
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error(usage(argv[0]))
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templatefile = io.open(base + '.lyx', 'r', encoding='utf_8')
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template = templatefile.read()
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templatefile.close()
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tempdir = tempfile.mkdtemp()
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for i in mathsymbols:
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createimage(i, argv[3], template, argv[2], tempdir, True, replacements, toolbaritems, makefileentries, usepng)
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for i in textsymbols:
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createimage(i, argv[3], template, argv[2], tempdir, False, replacements, toolbaritems, makefileentries, usepng)
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shutil.rmtree(tempdir)
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else:
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error(usage(argv[0]))
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return 0
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if __name__ == "__main__":
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main(sys.argv)
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