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#!/usr/bin/env python3
#******************************************************************************
# Copyright (C) 2018 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
# This file is part of the textoutpc project, which is MIT-licensed.
#******************************************************************************
from .. import InlineTag as _InlineTag
from thcolor import Color as _Color
__all__ = ["TextTag"]
def _get_color(text):
return _Color.from_text(text).rgba()
# ---
# Data.
# ---
_big_size = 2.00
_sml_size = 0.75
_fonts = {
"arial": "Arial",
"comic": "Comic MS",
"tahoma": "Tahoma",
"courier": "Courier",
"haettenschweiler": "Haettenschweiler",
"mono": "monospace",
"monospace": "monospace"
}
# ---
# Tag definition.
# ---
class TextTag(_InlineTag):
""" Main tag for setting text formatting.
Example uses:
[b]Bold text.[/b]
[i]Italic text.[/i]
[u]Underlined text.[/u]
[strike]Striked text.[/strike]
[striked]Text strikes again.[/striked]
[font=arial]Arial text.[/font]
[arial]Arial text again.[/arial]
[blue]This will be in blue[/blue]
[color=blue]This as well[/color]
[color=rgb(255, 255, 255, 0.4)]BLACKNESS[/color]
[color=hsl(0, 100%, 0.5)]This will be red.[/color]
Also supports a hack used on Planète Casio for a while, which
is a CSS injection, e.g.:
[color=brown; size: 16pt]Hello world![/color]
"""
aliases = ('[css]', '[b]', '[i]', '[u]', '[o]', '[s]', '[strike]',
'[monospace]', '[mono]', '[font]', '[color]', '[c]',
'[size]', '[big]', '[small]',
'[arial]', '[comic]', '[tahoma]', '[courier]',
'[haettenschweiler]', '[red]', '[green]', '[blue]',
'[yellow]', '[maroon]', '[purple]', '[gray]',
'[grey]', '[brown]')
notempty = True
def prepare(self, name, value):
self._bold = False
self._italic = False
self._underline = False
self._overline = False
self._strike = False
self._font = None
self._color = None
self._bgcolor = None
self._size = None
# Récupérer la partie correspondant à l'injection CSS s'il y
# en a une.
def get_props(value):
props = ''
if value is not None:
index = value.find(';')
if index >= 0:
props = value[index + 1:]
value = value[:index]
return value, props
# Définir les propriétés à partir du truc principal.
name = name[1:-1]
props = ""
if name == "css":
props = value
elif name == "b":
self._bold = True
elif name == "i":
self._italic = True
elif name == "u":
self._underline = True
elif name == "o":
self._overline = True
elif name in ("s", "strike", "striked"):
self._strike = True
elif name in ("color", 'c'):
value, props = get_props(value)
self._color = _get_color(value)
elif name == 'f':
value, props = get_props(value)
self._bgcolor = _get_color(value)
elif name == "font":
value, props = get_props(value)
assert value in _fonts
self._font = _fonts[value]
elif name in ('size', 'big', 'small'):
if name != 'size':
value = name
if value == 'big':
self._size = _big_size
elif value == 'small':
self._size = _sml_size
else:
self._size = round(int(value) / 100.0, 2)
assert 0 < self._size <= 3.0
if self._size == 1.0:
self._size = None
elif name in _fonts:
self._font = name
else:
self._color = _get_color(name)
# Gestion des propriétés CSS (par injection ou via `[css]`).
for prop in props.split(';'):
prop = prop.strip()
if not prop:
continue
name, *value = prop.split(':')
if not value:
continue
name = name.strip()
value = ':'.join(value).strip()
if name in ('size', 'font-size'):
# Control the font size.
unit = 'pt'
if value.endswith('pt'):
value = value[:-2].rstrip()
elif value.endswith('em'):
unit = 'em'
value = value[:-2].rstrip()
if not value or \
any(c != '0' for c in value[:-3]) or \
any(c not in '0123456789' for c in value[-3:]):
continue
value = int(value[-3:])
if unit == 'pt':
value /= 12 # XXX: default em size
if 0 < value <= 3.0:
self._size = value
elif name == 'color':
# Control the text color.
self._color = _get_color(value)
elif name == 'background-color':
# Control the background color.
self._bgcolor = _get_color(value)
def _get_css(self):
""" Get the `style` CSS classes and properties for HTML output. """
classes, props = [], []
if not self.tweak('obsolete_tags', True):
if self._bold:
props.append('font-weight: bold')
if self._italic:
props.append('font-style: italic')
if self._underline or self._strike or self._overline:
props.append('text-decoration:{}{}{}'.format(' underline'
if self._underline else '', ' line-through'
if self._strike else '', ' overline'
if self._overline else ''))
else:
if self._overline:
props.append('text-decoration:{}'.format(' overline'
if self._overline else ''))
if self._font:
props.append('font-family: ' + self._font)
if self._color:
# `transparent` is at least considered as a special value,
# or at most as an alias to `rgba(0,0,0,0)`.
if self._color[3] == 0.0:
props.append('color: transparent')
else:
# always append the #rgb color: it will be read by older
# browsers if the `rgba()` function isn't supported.
props.append('color: #%02X%02X%02X' % self._color[0:3])
if self._color[3] < 1.0:
props.append('color: rgba({}, {}, {}, {})'
.format(*self._color))
if self._bgcolor and self._bgcolor[3] != 0.0:
props.append('background-color: #%02X%02X%02X' % self._color[0:3])
if self._bgcolor[3] < 1.0:
props.append('background-color: rgba({}, {}, {}, {})'
.format(*self._bgcolor))
if self._size:
props.append('font-size: {}em'.format(self._size))
return classes, props
def begin_html(self):
obsoletetags = self.tweak('obsolete_tags', True)
cls, props = self._get_css()
if cls or props:
props = '<span{}{}>'.format(' class="{}"'.format(' '.join(cls))
if cls else '', ' style="{}"'.format('; '.join(props))
if props else '')
else:
props = ''
return '' \
+ ('', '<b>')[obsoletetags and self._bold] \
+ ('', '<i>')[obsoletetags and self._italic] \
+ ('', '<u>')[obsoletetags and self._underline] \
+ ('', '<strike>')[obsoletetags and self._strike] \
+ props
def end_html(self):
obsoletetags = self.tweak('obsolete_tags', True)
return '' \
+ ('', '</span>')[any(self._get_css())] \
+ ('', '</strike>')[obsoletetags and self._strike] \
+ ('', '</u>')[obsoletetags and self._underline] \
+ ('', '</i>')[obsoletetags and self._italic] \
+ ('', '</b>')[obsoletetags and self._bold]
# End of file.
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