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https://git.lyx.org/repos/lyx.git
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3f03f0a447
The change is only relevant to development as all the call to python scripts is done calling C++ os::python that invoques the appropriate python version. The change is two fold, on one hand remove all the uses of /usr/bin/env for python. On the other hand rename all the calls to python from python to python3 making it explicit and being compliant with PEP 394 -- The "python" Command on Unix-Like Systems: https://www.python.org/dev/peps/pep-0394/ Remove the sheebang from src/graphics/GraphicsConverter.cpp because it is not necessary. Some small whitespace changes.
227 lines
8.1 KiB
Python
Executable File
227 lines
8.1 KiB
Python
Executable File
#! /usr/bin/python3
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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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