LibreLogo: add basic HTML formatting support to LABEL
It's possible to format character spans in text
of LABEL, as bold, italic and underline text
using HTML tags <B>, <I> and <U> and their
lowercase equivalents. For example,
LABEL '<i>Italic, <b>also bold</b></i> and <u>underline</u>.'
Use HTML "<" to avoid of the replacement. For example,
LABEL 'some <i>text</i>'
prints "some <i>text</i>" instead of "some text"
with italic "text" in it.
Change-Id: I70fd97763c6c488eba23c168a541b84cff0c90e4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132786
Tested-by: László Németh <[email protected]>
Reviewed-by: László Németh <[email protected]>
diff --git a/librelogo/source/LibreLogo/LibreLogo.py b/librelogo/source/LibreLogo/LibreLogo.py
index 804057a..7aa71ca 100644
--- a/librelogo/source/LibreLogo/LibreLogo.py
+++ b/librelogo/source/LibreLogo/LibreLogo.py
@@ -203,6 +203,7 @@
from com.sun.star.drawing.CircleKind import ARC as __ARC__
from com.sun.star.awt.FontSlant import NONE as __Slant_NONE__
from com.sun.star.awt.FontSlant import ITALIC as __Slant_ITALIC__
from com.sun.star.awt.FontUnderline import SINGLE as __Underline_SINGLE__
from com.sun.star.awt import Size as __Size__
from com.sun.star.awt import WindowDescriptor as __WinDesc__
from com.sun.star.awt.WindowClass import MODALTOP as __MODALTOP__
@@ -1270,8 +1271,55 @@
_.shapecache[__ACTUAL__] = actual
return z
def text(shape, st):
def __get_HTML_format__(orig_st):
"Process HTML-like tags, and return with text and formatting vector"
st = orig_st.replace('<', '\uE000')
if not ('<' in st and '>' in st):
return st.replace('\uE000', '<'), None
tex = "" # characters without HTML tags
pat = [] # bit vectors of the previous characters
# 1st bit: bold
# 2nd bit: italic
# 3rd bit: underline
f = 0
tags = ['<b>', '</b>', '<i>', '</i>', '<u>', '</u>']
# store embedding level of the same element to disable it
# only at the most outer closing tag, e.g. <i>a <i>double</i> italic here, too</i>
bit_level = {0: 0, 1: 0, 2: 0}
i = 0
while i < len(st):
is_tag = False
for j in range(len(tags)):
if st[i:i + 4].lower().startswith(tags[j]):
bit = j // 2
# opening tag
if j % 2 == 0:
f |= (1 << bit)
bit_level[bit] += 1
else:
if bit_level[bit] > 0:
bit_level[bit] -= 1
if bit_level[bit] == 0:
f &= ~(1 << bit)
i += len(tags[j]) - 1
is_tag = True
break
if not is_tag:
tex = tex + st[i]
pat.append(f)
i += 1
# no tags
if len(st) == len(tex):
pat = None
return tex.replace('\uE000', '<'), pat
def text(shape, orig_st):
if shape:
# analyse HTML
st, formatting = __get_HTML_format__(orig_st)
shape.setString(__string__(st, _.decimal))
c = shape.createTextCursor()
c.gotoStart(False)
@@ -1281,6 +1329,27 @@
c.CharWeight = __fontweight__(_.fontweight)
c.CharPosture = __fontstyle__(_.fontstyle)
c.CharFontName = _.fontfamily
# has HTML-like formatting
if formatting != None:
prev_format = 0
c.collapseToStart()
n = 0 # length of the previous text span
formatting.append(0) # add terminating 0 to process last span
for i in formatting:
if i != prev_format:
do_formatting = prev_format != 0
c.goRight(n, do_formatting) # move cursor with optional selection
if do_formatting:
if prev_format & (1 << 0):
c.CharWeight = 150
if prev_format & (1 << 1):
c.CharPosture = __Slant_ITALIC__
if prev_format & (1 << 2):
c.CharUnderline = __Underline_SINGLE__
c.collapseToEnd()
n = 0
n += 1
prev_format = i
def sleep(t):
_.time = _.time + t
