Gimp/plug-ins/python/colorxhtml.py
Jehan 7c6a147ffb plug-ins: allow "html" extension for colorxhtml.
There is no reason to limit it to "xhtml" only. Even more, in all
browsers I tried, the exported page was failing to load with the '.xtml'
extension, while it loads fine when renamed as '.html'.

Only problem is that now we have 2 plug-ins able to save as html (other
is file-html-table) and the first in the procedure list (with no
explicit logics right now) will just shadow the next one. We will have
to add some generic infrastructure to allow people to choose favorite
load/export plug-ins, probably in Preferences, next to the raw plug-in
selection.
2019-12-14 14:37:14 +01:00

332 lines
11 KiB
Python
Executable file

#!/usr/bin/env python3
# Gimp-Python - allows the writing of Gimp plugins in Python.
# Copyright (C) 2003, 2005 Manish Singh <yosh@gimp.org>
#
# 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 3 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, see <https://www.gnu.org/licenses/>.
import string
import struct
import os.path
import sys
import gi
gi.require_version('Gimp', '3.0')
from gi.repository import Gimp
from gi.repository import GObject
from gi.repository import GLib
from gi.repository import Gio
import gettext
_ = gettext.gettext
def N_(message): return message
escape_table = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;'
}
style_def = """body {
width: 100%%;
font-size: %dpx;
background-color: #000000;
color: #ffffff;
}
"""
preamble = """<!DOCTYPE html>
<html>
<head>
<title>CSS Color XHTML written by GIMP</title>
%s
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<pre>
"""
postamble = """\n</pre>\n</body>\n</html>\n"""
fmt_from_bpp = {
3: 'BBB',
6: 'HHH',
12: 'III'
}
def save_colorxhtml(procedure, run_mode, image, drawable, file, args, data):
source_file = args.index(0)
characters = args.index(1)
size = args.index(2)
separate = args.index(3)
if file is None:
error = 'No file given'
return procedure.new_return_values(Gimp.PDBStatusType.CALLING_ERROR,
GLib.Error(error))
if run_mode == Gimp.RunMode.INTERACTIVE:
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
Gimp.ui_init ("colorxhtml.py")
use_header_bar = Gtk.Settings.get_default().get_property("gtk-dialogs-use-header")
dialog = Gtk.Dialog(use_header_bar=use_header_bar,
title=_("Save as colored HTML text..."))
dialog.add_button("_Cancel", Gtk.ResponseType.CANCEL)
dialog.add_button("_OK", Gtk.ResponseType.OK)
choose_file_dialog = Gtk.FileChooserDialog(use_header_bar=use_header_bar,
title=_("Read characters from file..."),
action=Gtk.FileChooserAction.OPEN)
choose_file_dialog.add_button("_Cancel", Gtk.ResponseType.CANCEL)
choose_file_dialog.add_button("_OK", Gtk.ResponseType.OK)
def choose_file(button, user_data=None):
choose_file_dialog.show()
if choose_file_dialog.run() == Gtk.ResponseType.OK:
characters_entry.set_text(choose_file_dialog.get_filename())
choose_file_dialog.hide()
grid = Gtk.Grid()
grid.set_column_homogeneous(False)
grid.set_border_width(10)
grid.set_column_spacing(10)
grid.set_row_spacing(10)
row = 0
label = Gtk.Label(label=_("Characters"))
label.set_tooltip_text(_("Characters that will be used as colored pixels. "))
grid.attach(label, 0, row, 1 , 1)
label.show()
characters_entry = Gtk.Entry()
characters_entry.set_width_chars(20)
characters_entry.set_max_width_chars(80)
characters_entry.set_text(characters)
characters_entry.set_placeholder_text(_("Characters or file location"))
grid.attach(characters_entry, 1, row, 1, 1)
characters_entry.show()
row += 1
characters_checkbox = Gtk.CheckButton(label=_("Read characters from file"))
characters_checkbox.set_active(source_file)
characters_checkbox.set_tooltip_text(
_("If set, the Characters text entry will be used as a file name, "
"from which the characters will be read. Otherwise, the characters "
"in the text entry will be used to render the image."))
grid.attach(characters_checkbox, 0, row, 1, 1)
characters_checkbox.show()
choose_file_button = Gtk.Button(label=_("Choose file"))
grid.attach(choose_file_button, 1, row, 1, 1)
choose_file_button.connect("clicked", choose_file)
choose_file_button.show()
row += 1
label = Gtk.Label(label=_("Font Size(px)"))
grid.attach(label, 0, row, 1 , 1)
label.show()
font_size_adj = Gtk.Adjustment.new(size, 0.0, 100.0, 1.0, 0.0, 0.0)
font_size_spin = Gtk.SpinButton.new(font_size_adj, climb_rate=1.0, digits=0)
font_size_spin.set_numeric(True)
grid.attach(font_size_spin, 1, row, 1 , 1)
font_size_spin.show()
row += 1
separate_checkbox = Gtk.CheckButton(label=_("Write separate CSS file"))
separate_checkbox.set_active(separate)
grid.attach(separate_checkbox, 0, row, 2, 1)
separate_checkbox.show()
dialog.get_content_area().add(grid)
grid.show()
dialog.show()
if dialog.run() == Gtk.ResponseType.OK:
separate = separate_checkbox.get_active()
size = font_size_spin.get_value_as_int()
source_file = characters_checkbox.get_active()
characters = characters_entry.get_text()
else:
return procedure.new_return_values(Gimp.PDBStatusType.CANCEL,
GLib.Error())
width = drawable.width()
height = drawable.height()
bpp = drawable.bpp()
html = open(file.peek_path(), 'w')
if separate:
dirname, cssfile = os.path.split(file.peek_path())
cssfile = os.path.splitext(cssfile)[0] + '.css'
cssname = os.path.join(dirname, cssfile)
css = open(cssname, 'w')
if source_file:
characters_file = open(characters, 'r')
chars = characters_file.read()
characters_file.close()
else:
chars = characters
# Remove unprintable characters from "chars".
# TODO: This only handles ascii files. It would be nice to handle unicode
# files, so this could work for any language.
goodchars = string.digits + string.ascii_letters + string.punctuation
badchars = ''.join(chr(i) for i in range(256) if chr(i) not in goodchars)
allchars = str.maketrans('', '', badchars)
chars = chars.translate(allchars)
data = [escape_table.get(c, c) for c in chars]
if data:
data.reverse()
else:
data = list('X' * 80)
Gimp.progress_init(_("Saving as colored XHTML"))
style = style_def % size
if separate:
ss = '<link rel="stylesheet" type="text/css" href="%s" />' % cssfile
css.write(style)
else:
ss = '<style type="text/css">\n%s</style>' % style
html.write(preamble % ss)
colors = {}
chars = []
# Constants used for formatting the pixel color. We can handle image
# types where each color is 8 bits, 16 bits, or 32 bit integers.
fmt = fmt_from_bpp[bpp]
pixel_shift = 8 * (bpp//3 - 1)
for y in range(0, height):
# The characters in "chars" will be used to draw the next row.
# Lets fill "chars" with data so it has at least enough characters.
while len(chars) < width:
chars[0:0] = data
for x in range(0, width):
pixel_bytes = drawable.get_pixel(x, y)
pixel_tuple = struct.unpack(fmt, pixel_bytes)
if bpp > 3:
pixel_tuple=(
pixel_tuple[0] >> pixel_shift,
pixel_tuple[1] >> pixel_shift,
pixel_tuple[2] >> pixel_shift,
)
color = '%02x%02x%02x' % pixel_tuple
style = 'background-color:black; color:#%s;' % color
char = chars.pop()
if separate:
if color not in colors:
css.write('span.N%s { %s }\n' % (color, style))
colors[color] = 1
html.write('<span class="N%s">%s</span>' % (color, char))
else:
html.write('<span style="%s">%s</span>' % (style, char))
html.write('\n')
Gimp.progress_update(y / float(height))
html.write(postamble)
html.close()
if separate:
css.close()
retval = Gimp.ValueArray.new(1)
retval.insert(0, GObject.Value(Gimp.PDBStatusType, Gimp.PDBStatusType.SUCCESS))
return retval
class ColorXhtml(Gimp.PlugIn):
## Parameters ##
__gproperties__ = {
"source-file":(bool,
_("_Read characters from file, if true, or use text entry"),
_("_Read characters from file, if true, or use text entry"),
False,
GObject.ParamFlags.READWRITE),
"characters": (str,
_("_File to read or characters to use"),
_("_File to read or characters to use"),
"foo",
GObject.ParamFlags.READWRITE),
"font-size": (int,
_("Fo_nt size in pixels"),
_("Fo_nt size in pixels"),
5, 100, 10,
GObject.ParamFlags.READWRITE),
"separate": (bool,
_("_Write a separate CSS file"),
_("_Write a separate CSS file"),
False,
GObject.ParamFlags.READWRITE)
}
## GimpPlugIn virtual methods ##
def do_query_procedures(self):
self.set_translation_domain("gimp30-python",
Gio.file_new_for_path(Gimp.locale_directory()))
return [ 'file-colorxhtml-save' ]
def do_create_procedure(self, name):
procedure = None
if name == 'file-colorxhtml-save':
procedure = Gimp.SaveProcedure.new(self, name,
Gimp.PDBProcType.PLUGIN,
save_colorxhtml, None)
procedure.set_image_types("RGB")
procedure.set_documentation (
N_("Save as colored HTML text"),
"Saves the image as colored XHTML text (based on Perl version by Marc Lehmann)",
name)
procedure.set_menu_label(N_("Colored HTML text"))
procedure.set_attribution("Manish Singh and Carol Spears",
"(c) GPL V3.0 or later",
"2003")
procedure.set_extensions ("html,xhtml");
procedure.add_argument_from_property(self, "source-file")
procedure.add_argument_from_property(self, "characters")
procedure.add_argument_from_property(self, "font-size")
procedure.add_argument_from_property(self, "separate")
return procedure
Gimp.main(ColorXhtml.__gtype__, sys.argv)