gramps/gramps/plugins/docgen/asciidoc.py
2016-01-23 21:53:14 -05:00

445 lines
16 KiB
Python

#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2006 Donald N. Allingham
# Copyright (C) 2007-2009 Brian G. Matherly
# Copyright (C) 2009-2010 Benny Malengier <benny.malengier@gramps-project.org>
# Copyright (C) 2010 Peter Landgren
# Copyright (C) 2011 Adam Stein <adam@csh.rit.edu>
# Copyright (C) 2012 Paul Franklin
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
#------------------------------------------------------------------------
#
# python modules
#
#------------------------------------------------------------------------
import sys
#------------------------------------------------------------------------
#
# Gramps modules
#
#------------------------------------------------------------------------
from gramps.gen.const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext
from gramps.gen.plug.docgen import (BaseDoc, TextDoc,
PARA_ALIGN_RIGHT, PARA_ALIGN_CENTER)
from gramps.gen.errors import ReportError
from gramps.gen.plug.menu import NumberOption
from gramps.gen.plug.report import DocOptions
#------------------------------------------------------------------------
#
# Constants
#
#------------------------------------------------------------------------
LEFT, RIGHT, CENTER = 'LEFT', 'RIGHT', 'CENTER'
#------------------------------------------------------------------------
#
# This routine was written by David Mertz and placed into the public
# domain. It is sample code from his book, "Text Processing in Python"
#
# Modified by Alex Roitman: right-pad with spaces, if right_pad==1;
# return empty string if no text was given
# Another argument: "first" is the first line indent in characters
# _relative_ to the "left" margin. It can be negative!
#
#------------------------------------------------------------------------
def reformat_para(para='', left=0, right=72, just=LEFT, right_pad=0, first=0):
if not para.strip():
return "\n"
lines = []
real_left = left+first
alllines = para.split('\n')
for realline in alllines:
words = realline.split()
line = ''
word = 0
end_words = 0
while not end_words:
if not words:
lines.append("\n")
break
if len(words[word]) > right-real_left: # Handle very long words
line = words[word]
word +=1
if word >= len(words):
end_words = 1
else: # Compose line of words
while len(line)+len(words[word]) <= right-real_left:
line += words[word]
word += 1
if word >= len(words):
end_words = 1
break
elif len(line) < right-real_left:
line += ' ' # add a space since there is still room
lines.append(line)
#first line finished, discard first
real_left = left
line = ''
if just == CENTER:
if right_pad:
return '\n'.join(
[' '*(left+first) + ln.center(right-left-first)
for ln in lines[0:1] ] +
[ ' '*left + ln.center(right-left) for ln in lines[1:] ]
)
else:
return '\n'.join(
[' '*(left+first) + ln.center(right-left-first).rstrip()
for ln in lines[0:1] ] +
[' '*left + ln.center(right-left).rstrip()
for ln in lines[1:] ]
)
elif just == RIGHT:
if right_pad:
return '\n'.join([line.rjust(right) for line in lines])
else:
return '\n'.join([line.rjust(right).rstrip() for line in lines])
else: # left justify
if right_pad:
return '\n'.join(
[' '*(left+first) + line.ljust(right-left-first)
for line in lines[0:1] ] +
[' '*left + line.ljust(right-left) for line in lines[1:] ]
)
else:
return '\n'.join(
[' '*(left+first) + line for line in lines[0:1] ] +
[' '*left + line for line in lines[1:] ]
)
#------------------------------------------------------------------------
#
# Ascii
#
#------------------------------------------------------------------------
class AsciiDoc(BaseDoc, TextDoc):
def __init__(self, styles, type, options=None):
BaseDoc.__init__(self, styles, type)
self.__note_format = False
self._cpl = 72 # characters per line, in case the options are ignored
if options:
menu = options.menu
self._cpl = menu.get_option_by_name('linechars').get_value()
#--------------------------------------------------------------------
#
# Opens the file, resets the text buffer.
#
#--------------------------------------------------------------------
def open(self, filename):
if filename[-4:] != ".txt":
self.filename = filename + ".txt"
else:
self.filename = filename
try:
self.f = open(self.filename, "w", errors = 'backslashreplace')
except Exception as msg:
errmsg = "%s\n%s" % (_("Could not create %s") % self.filename, msg)
raise ReportError(errmsg)
self.in_cell = 0
self.text = ""
#--------------------------------------------------------------------
#
# Close the file. Call the app if required.
#
#--------------------------------------------------------------------
def close(self):
self.f.close()
def get_usable_width(self):
return self._cpl
#--------------------------------------------------------------------
#
# Force a section page break
#
#--------------------------------------------------------------------
def page_break(self):
self.f.write('\012')
def start_bold(self):
pass
def end_bold(self):
pass
def start_superscript(self):
self.text = self.text + '['
def end_superscript(self):
self.text = self.text + ']'
#--------------------------------------------------------------------
#
# Starts a paragraph.
#
#--------------------------------------------------------------------
def start_paragraph(self, style_name, leader=None):
styles = self.get_style_sheet()
self.p = styles.get_paragraph_style(style_name)
self.leader = leader
#--------------------------------------------------------------------
#
# End a paragraph. First format it to the desired widths.
# If not in table cell, write it immediately. If in the cell,
# add it to the list for this cell after formatting.
#
#--------------------------------------------------------------------
def end_paragraph(self):
if self.p.get_alignment() == PARA_ALIGN_RIGHT:
fmt = RIGHT
elif self.p.get_alignment() == PARA_ALIGN_CENTER:
fmt = CENTER
else:
fmt = LEFT
if self.in_cell:
right = self.cell_widths[self.cellnum]
else:
right = self.get_usable_width()
# Compute indents in characters. Keep first_indent relative!
regular_indent = 0
first_indent = 0
if self.p.get_left_margin():
regular_indent = int(4*self.p.get_left_margin())
if self.p.get_first_indent():
first_indent = int(4*self.p.get_first_indent())
if self.in_cell and self.cellnum < self.ncols - 1:
right_pad = 1
the_pad = ' ' * right
else:
right_pad = 0
the_pad = ''
# Depending on the leader's presence, treat the first line differently
if self.leader:
# If we have a leader then we need to reformat the text
# as if there's no special treatment for the first line.
# Then add leader and eat up the beginning of the first line pad.
# Do not reformat if preformatted notes
if not self.__note_format:
self.leader += ' '
start_at = regular_indent + min(len(self.leader)+first_indent, 0)
this_text = reformat_para(self.text, regular_indent, right, fmt,
right_pad)
this_text = (' ' * (regular_indent+first_indent) +
self.leader +
this_text[start_at:]
)
else:
this_text = self.text
else:
# If no leader then reformat the text according to the first
# line indent, as specified by style.
# Do not reformat if preformatted notes
if not self.__note_format:
this_text = reformat_para(self.text, regular_indent, right,fmt,
right_pad, first_indent)
else:
this_text = ' ' * (regular_indent + first_indent) + self.text
if self.__note_format:
# don't add an extra LF before the_pad if preformatted notes.
if this_text != '\n':
# don't add LF if there is this_text is a LF
this_text += the_pad + '\n'
else:
this_text += '\n' + the_pad + '\n'
if self.in_cell:
self.cellpars[self.cellnum] += this_text
else:
self.f.write(this_text)
self.text = ""
#--------------------------------------------------------------------
#
# Start a table. Grab the table style, and store it.
#
#--------------------------------------------------------------------
def start_table(self, name, style_name):
styles = self.get_style_sheet()
self.tbl_style = styles.get_table_style(style_name)
self.ncols = self.tbl_style.get_columns()
#--------------------------------------------------------------------
#
# End a table. Turn off the self.in_cell flag
#
#--------------------------------------------------------------------
def end_table(self):
self.in_cell = 0
#--------------------------------------------------------------------
#
# Start a row. Initialize lists for cell contents, number of lines,
# and the widths. It is necessary to keep a list of cell contents
# that is to be written after all the cells are defined.
#
#--------------------------------------------------------------------
def start_row(self):
self.cellpars = [''] * self.ncols
self.cell_lines = [0] * self.ncols
self.cell_widths = [0] * self.ncols
self.cellnum = -1
self.maxlines = 0
table_width = self.get_usable_width() * self.tbl_style.get_width() / 100.0
for cell in range(self.ncols):
self.cell_widths[cell] = int(table_width *
self.tbl_style.get_column_width(cell) / 100.0)
#--------------------------------------------------------------------
#
# End a row. Write the cell contents. Write the line of spaces
# if the cell has fewer lines than the maximum number.
#
#--------------------------------------------------------------------
def end_row(self):
self.in_cell = 0
cell_text = [None]*self.ncols
for cell in range(self.ncols):
if self.cell_widths[cell]:
blanks = ' '*self.cell_widths[cell] + '\n'
if self.cell_lines[cell] < self.maxlines:
self.cellpars[cell] += blanks * (
self.maxlines - self.cell_lines[cell]
)
cell_text[cell] = self.cellpars[cell].split('\n')
for line in range(self.maxlines):
for cell in range(self.ncols):
if self.cell_widths[cell]:
self.f.write(cell_text[cell][line])
self.f.write('\n')
#--------------------------------------------------------------------
#
# Start a cell. Set the self.in_cell flag,
# increment the current cell number.
#
#--------------------------------------------------------------------
def start_cell(self, style_name, span=1):
self.in_cell = 1
self.cellnum = self.cellnum + span
span -= 1
while span:
self.cell_widths[self.cellnum] += (
self.cell_widths[self.cellnum-span]
)
self.cell_widths[self.cellnum-span] = 0
span -= 1
#--------------------------------------------------------------------
#
# End a cell. Find out the number of lines in this cell, correct
# the maximum number of lines if necessary.
#
#--------------------------------------------------------------------
def end_cell(self):
self.in_cell = 0
self.cell_lines[self.cellnum] = self.cellpars[self.cellnum].count('\n')
if self.cell_lines[self.cellnum] > self.maxlines:
self.maxlines = self.cell_lines[self.cellnum]
def add_media(self, name, align, w_cm, h_cm, alt='',
style_name=None, crop=None):
this_text = '(photo)'
if self.in_cell:
self.cellpars[self.cellnum] += this_text
else:
self.f.write(this_text)
def write_styled_note(self, styledtext, format, style_name,
contains_html=False, links=False):
"""
Convenience function to write a styledtext to the ASCII doc.
styledtext : assumed a StyledText object to write
format : = 0 : Flowed, = 1 : Preformatted
style_name : name of the style to use for default presentation
contains_html: bool, the backend should not check if html is present.
If contains_html=True, then the textdoc is free to handle that in
some way. Eg, a textdoc could remove all tags, or could make sure
a link is clickable. AsciiDoc prints the html without handling it
links: bool, make the URL in the text clickable (if supported)
"""
if contains_html:
return
text = str(styledtext)
if format:
#Preformatted note, keep all white spaces, tabs, LF's
self.__note_format = True
for line in text.split('\n'):
self.start_paragraph(style_name)
self.write_text(line)
self.end_paragraph()
# Add an extra empty para all lines in each preformatted note
self.start_paragraph(style_name)
self.end_paragraph()
self.__note_format = False
else:
for line in text.split('\n\n'):
self.start_paragraph(style_name)
#line = line.replace('\n',' ')
#line = ' '.join(line.split())
self.write_text(line)
self.end_paragraph()
#--------------------------------------------------------------------
#
# Writes text.
#--------------------------------------------------------------------
def write_text(self, text, mark=None, links=False):
self.text = self.text + text
#------------------------------------------------------------------------
#
# AsciiDocOptions class
#
#------------------------------------------------------------------------
class AsciiDocOptions(DocOptions):
"""
Defines options and provides handling interface.
"""
def __init__(self, name, dbase):
DocOptions.__init__(self, name)
def add_menu_options(self, menu):
"""
Add options to the document menu for the AsciiDoc docgen.
"""
category_name = 'Document Options' # internal name: don't translate
linechars = NumberOption(_('Characters per line'), 72, 20, 9999)
linechars.set_help(_("The number of characters per line"))
menu.add_option(category_name, 'linechars', linechars)