/usr/bin/tegaki-render is in python-tegakitools 0.3.1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# -*- coding: utf-8 -*-
# Copyright (C) 2009 The Tegaki project contributors
#
# 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.
# Contributors to this file:
# - Mathieu Blondel
VERSION = '0.3'
import sys
from optparse import OptionParser, OptionGroup
from tegaki.character import Character
from tegakigtk.renderers import *
try:
from tegakigifenc import GifEncoder
FORMATS = ["gif"]
except ImportError:
FORMATS = []
FORMATS += ["png", "svg", "pdf"]
class TegakiRenderError(Exception):
pass
class TegakiRender(object):
def __init__(self, options, args):
char = Character()
char.read(args[0])
self._writing = char.get_writing()
self._output = args[1]
for o in options.__dict__.keys():
setattr(self, "_" + o, getattr(options, o))
if not options.width and not options.height:
self._width, self._height = self._get_default_size()
elif not options.width:
self._width = self._height
else:
self._height = self._width
def _preprocessing(self):
if self._normalize:
self._writing.normalize()
if self._center:
self._writing.normalize_position()
if self._smooth:
self._writing.smooth()
def _draw_init(self, renderer):
renderer.set_stroke_width(self._stroke_width)
renderer.set_draw_circles(self._circles)
renderer.draw_background()
if not self._steps:
if self._axis: renderer.draw_axis()
renderer.set_draw_annotations(self._annot)
def _get_default_size(self):
if self._cm:
return [20, 20]
elif self._inch:
return [8, 8]
else:
return [400, 400]
def _get_size(self):
if self._cm:
return cm_to_pt(self._width, self._height)
elif self._inch:
return inch_to_pt(self._width, self._height)
else:
return [self._width, self._height]
def _get_stroke_groups(self):
if self._steps_groups:
try:
return [int(n) for n in self._steps_groups.split(",")]
except ValueError:
raise TegakiRenderError, \
"--steps-groups must be a comma separated list "
" of group stroke numbers, e.g. 1,1,3,1,4,2,2"
else:
return None
def _gen_png(self):
if self._steps:
png_renderer = WritingStepsImageRenderer(self._writing,
height=self._get_size()[1],
stroke_groups=self._get_stroke_groups(),
start=self._steps_start,
length=self._steps_length,
n_chars_per_row=self._steps_n_chars_per_row)
self._draw_init(png_renderer)
png_renderer.draw_writing_steps()
else:
png_renderer = WritingImageRenderer(self._writing,
*self._get_size())
self._draw_init(png_renderer)
png_renderer.draw_writing()
png_renderer.write_to_png(self._output)
def _gen_svg(self):
if self._steps:
svg_renderer = WritingStepsSVGRenderer(self._writing,
self._output,
height=self._get_size()[1],
stroke_groups=self._get_stroke_groups(),
start=self._steps_start,
length=self._steps_length,
n_chars_per_row=self._steps_n_chars_per_row)
self._draw_init(svg_renderer)
svg_renderer.draw_writing_steps()
else:
svg_renderer = WritingSVGRenderer(self._writing, self._output,
*self._get_size())
self._draw_init(svg_renderer)
svg_renderer.draw_writing()
def _gen_pdf(self):
if self._steps:
pdf_renderer = WritingStepsPDFRenderer(self._writing,
self._output,
height=self._get_size()[1],
stroke_groups=self._get_stroke_groups(),
start=self._steps_start,
length=self._steps_length,
n_chars_per_row=self._steps_n_chars_per_row)
self._draw_init(pdf_renderer)
pdf_renderer.draw_writing_steps()
else:
pdf_renderer = WritingSVGRenderer(self._writing, self._output,
*self._get_size())
self._draw_init(pdf_renderer)
pdf_renderer.draw_writing()
def _get_default_frame_duration(self):
if self._stroke_by_stroke:
return 500
else:
return 100
def _gen_animated_gif(self):
w, h = self._get_size()
enc = GifEncoder()
rend = WritingImageRenderer(self._writing, w, h)
if self._stroke_by_stroke:
def _write_frame():
buf = str(rend.get_data())
if self._frame_duration:
delay_ms = self._frame_duration
else:
delay_ms = self._get_default_frame_duration()
enc.add_image(0, 0, w, h, delay_ms, buf, rend.get_stride())
else:
def _write_frame(x, y, width, height, delay_ms):
if self._frame_duration:
delay_ms = self._frame_duration
elif not delay_ms:
delay_ms = self._get_default_frame_duration()
buf = str(rend.get_area_data(x, y, width, height))
assert(len(buf) == width * height * 4)
enc.add_image(x, y, width, height, delay_ms, buf, width*4)
self._draw_init(rend)
rend.draw_writing()
# set_palette_for_image(img_data, width, height,
# number of bytes per line, alpha, num colors)
enc.set_palette_for_image(str(rend.get_data()), w, h,
rend.get_stride(), True, 255)
enc.open(self._output, w, h, True, self._loop)
# set the entire image as first frame for the first 2000 milliseconds
enc.add_image(0, 0, w, h, 2000, str(rend.get_data()), rend.get_stride())
self._draw_init(rend)
# set a blank drawing area as second frame
enc.add_image(0, 0, w, h, 0, str(rend.get_data()), rend.get_stride())
if self._stroke_by_stroke:
rend.set_stroke_added_callback(_write_frame)
else:
rend.set_area_changed_callback(_write_frame)
rend.draw_writing()
enc.close()
def run(self):
self._preprocessing()
if self._output.endswith("png"):
self._gen_png()
elif self._output.endswith("svg"):
self._gen_svg()
elif self._output.endswith("pdf"):
self._gen_pdf()
elif self._output.endswith("gif") and "gif" in FORMATS:
self._gen_animated_gif()
else:
raise TegakiRenderError, "Output format not supported!"
usage = "usage: %prog [options] input.xml " + "output.(%s)" % "|".join(FORMATS)
parser = OptionParser(usage=usage, version="%prog " + VERSION)
group = OptionGroup(parser, "Size options")
group.add_option("", "--width",
type="int", dest="width",
help="output image width")
group.add_option("", "--height",
type="int", dest="height",
help="output image height")
group.add_option("", "--cm",
action="store_true", dest="cm", default=False,
help="width and height are defined in centimeters")
group.add_option("", "--inch",
action="store_true", dest="inch", default=False,
help="width and height are defined in inches")
parser.add_option_group(group)
#####
group = OptionGroup(parser, "Preprocessing options")
group.add_option("", "--without-smoothing",
action="store_false", dest="smooth", default=True,
help="don't smooth strokes")
group.add_option("", "--without-normalizing",
action="store_false", dest="normalize", default=True,
help="don't normalize character")
group.add_option("", "--without-centering",
action="store_false", dest="center", default=True,
help="don't center character")
parser.add_option_group(group)
#####
group = OptionGroup(parser, "Drawing options")
group.add_option("", "--without-axis",
action="store_false", dest="axis", default=True,
help="don't draw axis")
group.add_option("", "--without-annot",
action="store_false", dest="annot", default=True,
help="don't draw stroke number annotations")
group.add_option("", "--without-circles",
action="store_false", dest="circles", default=True,
help="don't draw circles")
group.add_option("", "--stroke-width",
type="int", dest="stroke_width", default=16,
help="stroke_width")
parser.add_option_group(group)
#####
group = OptionGroup(parser, "Step-by-step options")
group.add_option("", "--steps",
action="store_true", dest="steps", default=False,
help="draw the character step-by-step")
group.add_option("", "--steps-start",
type="int", dest="steps_start", default=0,
help="step start index (starts at 0)")
group.add_option("", "--steps-length",
type="int", dest="steps_length",
help="number of steps")
group.add_option("", "--steps-groups",
type="string", dest="steps_groups",
help="comma-separated list of group stroke numbers")
group.add_option("", "--steps-n-chars-per-row",
type="int", dest="steps_n_chars_per_row",
help="number of characters to display per row")
parser.add_option_group(group)
#####
group = OptionGroup(parser, "GIF options")
group.add_option("", "--loop",
action="store_true", dest="loop", default=False,
help="Make the GIF loops")
group.add_option("", "--stroke-by-stroke",
action="store_true", dest="stroke_by_stroke", default=False,
help="display entire strokes in one frame")
group.add_option("", "--frame-duration",
type="int", dest="frame_duration",
help="frame duration in milliseconds")
parser.add_option_group(group)
(options, args) = parser.parse_args()
try:
if len(args) < 2:
raise TegakiRenderError, "Needs an input and an output file!"
TegakiRender(options, args).run()
except TegakiRenderError, e:
sys.stderr.write(str(e) + "\n\n")
parser.print_help()
sys.exit(1)
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