/usr/lib/python2.7/dist-packages/tryton/gui/window/view_form/view/form_gtk/richtextbox.py is in tryton-client 3.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# this repository contains the full copyright notices and license terms.
import gtk
import pango
import re
from gettext import gettext as _
from .textbox import TextBox
from tryton.common import get_toplevel_window
def formalize_text_markup(text):
'''This function formalize the text markup for editing and save data'''
# Formalize <span> tag
i = 0
stack = []
occurrence = 0
span_open = "<span (.+?)='(.+?)'>"
while i < len(text):
data = re.match(span_open, text[i:])
if data:
occurrence += 1
if not stack or occurrence == 1:
stack.append([data.start() + i, data.end() + i, occurrence])
else:
stack[-1][1] = data.end() + i
stack[-1][2] = occurrence
i += data.end()
else:
occurrence = 0
i += 1
if stack:
span_close = '</span>' * stack[-1][2]
data = re.search('^' + span_close, text[i:])
if data and stack[-1][2] > 1:
span = stack.pop()
text = re.sub(span_close, text[:i] + '</span>', text[i:], 1)
text = text[:span[0]] + re.sub('><span', '',
text[span[0]:span[1]]) + text[span[1]:]
i += data.end()
# Special character
text = re.sub('<\x08', '</b', text)
# Formalize <p> tag
lines = text.split('\n')
align = "left"
for i in range(len(lines)):
while True:
data = re.search("<p( align='(?P<val>[a-z]{4,6})')?>", lines[i])
if data and data.group('val'):
align = data.group('val')
lines[i] = re.sub("<p( align='[a-z]{4,6}')?>", '', lines[i], 1)
else:
break
actual_align = "<p align='%s'>" % align
if re.search("</p>", lines[i]):
align = 'left'
lines[i] = re.sub('</p>', '', lines[i])
# If not exists any line add paragraph
if not re.search('^$', lines[i]):
lines[i] = actual_align + lines[i] + "</p>"
return '\n'.join(lines)
class RichTextBox(TextBox):
'''Implements a rich text editor as widget to Tryton Client'''
def __init__(self, view, attrs):
super(RichTextBox, self).__init__(view, attrs)
self.table_tag = gtk.TextTagTable()
self.text_buffer = gtk.TextBuffer(self.table_tag)
self.textview.set_buffer(self.text_buffer)
self.textview.connect_after('move-cursor', self.detect_style)
self.textview.connect('button-release-event', self.detect_style)
self.focus_out = True
tags = ('bold', 'italic', 'underline', 'font_family', 'size', 'left',
'center', 'right', 'fill', 'foreground', 'background', 'markup')
# Build all buttons
self.tools = {}
for tag in tags[:3]:
self.tools[tag] = gtk.ToggleToolButton('gtk-%s' % tag)
self.sizes = map(str, range(6, 33))
fonts = self.textview.get_pango_context().list_families()
self.families = sorted([font.get_name() for font in fonts])
for tag, values in zip(tags[3:5], (self.families, self.sizes)):
self.tools[tag] = gtk.ToolItem()
box = gtk.combo_box_new_text()
for value in values:
box.append_text(value)
box.set_focus_on_click(False)
self.tools[tag].add(box)
group = None
for tag in tags[5:9]:
self.tools[tag] = gtk.RadioToolButton(group,
'gtk-justify-%s' % tag)
if not group:
group = self.tools[tag]
for tag in tags[9:11]:
self.tools[tag] = gtk.ToolButton('tryton-text-%s' % tag)
self.tools['markup'] = gtk.ToggleToolButton('tryton-text-markup')
# Set properties to each button
tag_values = (
('bold', 'weight', pango.WEIGHT_BOLD),
('italic', 'style', pango.STYLE_ITALIC),
('underline', 'underline', pango.UNDERLINE_SINGLE),
('left', 'justification', gtk.JUSTIFY_LEFT),
('center', 'justification', gtk.JUSTIFY_CENTER),
('right', 'justification', gtk.JUSTIFY_RIGHT),
('fill', 'justification', gtk.JUSTIFY_FILL),
)
self.text_tags = {}
for tag, name, prop in tag_values:
self.text_tags[tag] = gtk.TextTag(tag)
self.text_tags[tag].set_property(name, prop)
self.table_tag.add(self.text_tags[tag])
self.font_props = {
'font_family': {},
'size': {},
'foreground': {},
'background': {},
}
font_desc = self.textview.get_pango_context().get_font_description()
self.current_font_prop = {
'foreground': gtk.gdk.Color('#000'),
'background': gtk.gdk.Color('#fff'),
'font_family': font_desc.get_family(),
'size': str(font_desc.get_size() / pango.SCALE),
'justify': 'left',
}
self.tools['size'].child.set_active(self.sizes.index(
self.current_font_prop['size']))
font_family = self.current_font_prop['font_family']
if font_family in self.families:
self.tools['font_family'].child.set_active(self.families.index(
font_family))
self.start_tags = {}
self.end_tags = {}
# Connect events
self.tool_ids = {}
for tag in tags[:3]:
self.tool_ids[tag] = self.tools[tag].connect('toggled',
self.action_style_font, self.text_tags[tag], tag)
for tag in tags[3:5]:
self.tool_ids[tag] = self.tools[tag].child.connect('changed',
self.action_prop_font, tag)
for tag in tags[5:9]:
self.tool_ids[tag] = self.tools[tag].connect('toggled',
self.action_justification, tag)
for tag in tags[9:11]:
self.tool_ids[tag] = self.tools[tag].connect('clicked',
self.action_prop_font, tag)
self.tool_ids['markup'] = self.tools['markup'].connect('toggled',
self.edit_text_markup)
self.insert_text_id = self.text_buffer.connect_after('insert-text',
self.persist_style)
# Tooltip text
self.tools['bold'].set_tooltip_text(_('Change text to bold'))
self.tools['italic'].set_tooltip_text(_('Change text to italic'))
self.tools['underline'].set_tooltip_text(_('Change text to underline'))
self.tools['font_family'].set_tooltip_text(_('Choose font-family'))
self.tools['size'].set_tooltip_text(_('Choose font-size'))
self.tools['left'].set_tooltip_text(_('Justify of line to the left'))
self.tools['center'].set_tooltip_text(
_('Justify of line to the center'))
self.tools['right'].set_tooltip_text(_('Justify of line to the right'))
self.tools['fill'].set_tooltip_text(
_('Justify of line to fill window'))
self.tools['foreground'].set_tooltip_text(
_('Change the foreground text'))
self.tools['background'].set_tooltip_text(
_('Change the background text'))
self.tools['markup'].set_tooltip_text(_('Change the markup text view'))
# Packing widgets
self.tool_bar = gtk.Toolbar()
self.tool_bar.set_style(gtk.TOOLBAR_ICONS)
for tag in tags:
self.tool_bar.insert(self.tools[tag], -1)
separator = gtk.SeparatorToolItem
for local in (3, 6, 11, 14):
self.tool_bar.insert(separator(), local)
self.widget.pack_start(self.tool_bar, False)
def get_value_markup(self):
if self.tools['markup'].get_active():
return self.get_value()
else:
return self.parser_to_text_markup(self.text_buffer)
@property
def modified(self):
if self.record and self.field:
return (formalize_text_markup(self.field.get_client(self.record) or
'') != self.get_value_markup())
return False
def set_value(self, record, field):
# Popup for font_family and size should not trigger set_value from
# Form.leave otherwise the selection is lost
for tag in ('font_family', 'size'):
tool = self.tools[tag]
if (hasattr(tool.child.props, 'popup_shown')
and tool.child.props.popup_shown):
return
if self.modified:
field.set_client(record, self.get_value_markup())
def set_buffer(self, value):
self.text_buffer.handler_block(self.insert_text_id)
if self.tools['markup'].get_active():
super(RichTextBox, self).set_buffer(value)
else:
text_buffer, deserial = self.parser_from_text_markup(value)
self.text_buffer.deserialize(self.text_buffer, deserial,
self.text_buffer.get_start_iter(),
text_buffer.serialize(text_buffer,
"application/x-gtk-text-buffer-rich-text",
text_buffer.get_start_iter(), text_buffer.get_end_iter()))
self.text_buffer.handler_unblock(self.insert_text_id)
def _focus_out(self):
if not self.focus_out:
return
# Popup for font_family and size should not trigger focus_out
# otherwise the selection is lost
for tag in ('font_family', 'size'):
tool = self.tools[tag]
if (hasattr(tool.child.props, 'popup_shown')
and tool.child.props.popup_shown):
return
super(RichTextBox, self)._focus_out()
def _readonly_set(self, value):
super(RichTextBox, self)._readonly_set(value)
self.tool_bar.set_sensitive(not value)
if value and self.tools['markup'].get_active():
self.tools['markup'].set_active(False)
def edit_text_markup(self, widget):
'''on/off all buttons and call the appropriate parser'''
tags = [tag for tag in self.tools if tag != 'markup']
if widget.get_active():
for tag in tags:
self.tools[tag].set_sensitive(False)
text = self.parser_to_text_markup(self.text_buffer)
self.start_tags.clear()
self.end_tags.clear()
else:
for tag in tags:
self.tools[tag].set_sensitive(True)
text = self.text_buffer.get_text(self.text_buffer.get_start_iter(),
self.text_buffer.get_end_iter()).decode('utf-8')
self.set_buffer(text)
def parser_to_text_markup(self, buffer_):
'''Parser from rich text view to text markup'''
text_buffer = gtk.TextBuffer(self.table_tag)
deserial = text_buffer.register_deserialize_tagset()
text_buffer.deserialize(text_buffer, deserial,
text_buffer.get_start_iter(), buffer_.serialize(
buffer_, "application/x-gtk-text-buffer-rich-text",
buffer_.get_start_iter(), buffer_.get_end_iter()))
locks = {'bold': False, 'italic': False, 'underline': False,
'left': False, 'right': False, 'center': False, 'fill': False}
for prop in self.font_props:
for tag_name in self.font_props[prop]:
locks["%s %s" % (prop, tag_name)] = False
imark = text_buffer.get_start_iter()
while True:
begin_mark = text_buffer.create_mark(None, imark, False)
end_mark = text_buffer.create_mark(None, imark, True)
for tag in ('bold', 'italic', 'underline'):
imark = text_buffer.get_iter_at_mark(begin_mark)
if imark.begins_tag(self.text_tags[tag]) and not locks[tag]:
text_buffer.insert(imark, "<%s>" % tag[0])
locks[tag] = True
imark = text_buffer.get_iter_at_mark(end_mark)
if imark.ends_tag(self.text_tags[tag]) and locks[tag]:
text_buffer.insert(imark, "</%s>" % tag[0])
locks[tag] = False
for tag in ('left', 'right', 'center', 'fill'):
imark = text_buffer.get_iter_at_mark(begin_mark)
if imark.begins_tag(self.text_tags[tag]) and not locks[tag]:
text_buffer.insert(imark, "<p align='%s'>" % tag)
locks[tag] = True
imark = text_buffer.get_iter_at_mark(end_mark)
if imark.ends_tag(self.text_tags[tag]) and locks[tag]:
text_buffer.insert(imark, "</p>")
locks[tag] = False
for tag in ('font_family', 'size', 'foreground', 'background'):
for name, prop in self.font_props[tag].items():
imark = text_buffer.get_iter_at_mark(end_mark)
if (imark.begins_tag(prop)
and not locks['%s %s' % (tag, name)]):
locks['%s %s' % (tag, name)] = True
text_buffer.insert(imark,
"<span %s='%s'>" % (tag, name))
imark = text_buffer.get_iter_at_mark(end_mark)
if imark.ends_tag(prop) and locks['%s %s' % (tag, name)]:
locks['%s %s' % (tag, name)] = False
text_buffer.insert(imark, "</span>")
imark = text_buffer.get_iter_at_mark(end_mark)
if not imark.forward_to_tag_toggle(None):
break
text = text_buffer.get_text(text_buffer.get_start_iter(),
text_buffer.get_end_iter()).decode('utf-8')
return formalize_text_markup(text)
def parser_from_text_markup(self, text):
'''Parser from text markup to rich text view'''
text_buffer = gtk.TextBuffer(self.table_tag)
text_buffer.set_text(text)
tags = []
open_re = '<(?P<tag>\w{1,4})(?P<attrs> .+?)?>'
create_mark = lambda pos: text_buffer.create_mark(None,
text_buffer.get_iter_at_offset(pos), True)
tag_names = {'b': 'bold', 'i': 'italic', 'u': 'underline',
'p': 'justify', 'size': 'size', 'font_family': 'font_family',
'foreground': 'foreground', 'background': 'background'}
while re.search(open_re, text):
data_open = re.search(open_re, text)
tag = data_open.group('tag')
attributes = data_open.group('attrs')
text = re.sub(open_re, '', text, 1)
text_buffer.delete(text_buffer.get_iter_at_offset(
data_open.start()), text_buffer.get_iter_at_offset(
data_open.end()))
close_re = '</%s>' % tag
data_close = re.search(close_re, text)
if data_close:
text = re.sub(close_re, '', text, 1)
text_buffer.delete(text_buffer.get_iter_at_offset(
data_close.start()), text_buffer.get_iter_at_offset(
data_close.end()))
start = create_mark(data_open.start())
end = create_mark(data_close.start())
if tag in ('b', 'i', 'u'):
tags.append((start, end, tag_names[tag], None))
elif tag == 'p':
val = re.search("align='(\w{,6})'", attributes)
if val:
tags.append((start, end, tag_names[tag], val.group(1)))
elif tag == 'span':
attrs_re = " ([\w_]{4,11})='(.+?)'"
while re.search(attrs_re, attributes):
data = re.search(attrs_re, attributes)
att, val = data.group(1), data.group(2)
attributes = re.sub(attrs_re, '', attributes, 1)
tags.append((start, end, tag_names[att], val))
for start, end, tag, value in tags:
start = text_buffer.get_iter_at_mark(start)
end = text_buffer.get_iter_at_mark(end)
if tag in ('bold', 'italic', 'underline'):
text_buffer.apply_tag(self.text_tags[tag], start, end)
elif tag in ('font_family', 'size', 'foreground', 'background'):
text_buffer.apply_tag(self.gen_tag(value, tag), start, end)
else: # tag <p>
line = text_buffer.get_iter_at_line(start.get_line())
text_buffer.apply_tag_by_name(value, line, end)
self.text_buffer.set_text('')
deserial = self.text_buffer.register_deserialize_tagset()
return text_buffer, deserial
def gen_tag(self, val, tag):
'''
Generates tags according tag values (foreground, background,
font-family, font-size)
'''
key = "%s %s" % (tag, val)
prop = {'foreground': 'foreground', 'background': 'background',
'font_family': 'family', 'size': 'size-points'}
try:
self.font_props[tag][str(val)]
except KeyError:
self.font_props[tag][str(val)] = gtk.TextTag(key)
try:
self.font_props[tag][str(val)].set_property(prop[tag], val)
except TypeError:
self.font_props[tag][str(val)].set_property(prop[tag],
int(val))
self.table_tag.add(self.font_props[tag][str(val)])
return self.font_props[tag][str(val)]
def detect_style(self, *args):
'''
Detect the styles of text when cursor is clicked in differents parts of
text area
'''
local = self.text_buffer.get_iter_at_mark(
self.text_buffer.get_insert())
local.backward_char()
current_tags = local.get_tags()
locks = {'bold': False, 'italic': False, 'underline': False}
font_desc = self.textview.get_pango_context().get_font_description()
font_name = font_desc.get_family()
size_name = str(font_desc.get_size() / pango.SCALE)
justify, justify_type = True, 'left'
for tag in current_tags:
if tag.get_property('weight-set'):
locks['bold'] = True
elif tag.get_property('style-set'):
locks['italic'] = True
elif tag.get_property('underline-set'):
locks['underline'] = True
elif tag.get_property('family-set'):
font_name = tag.get_property('family')
elif tag.get_property('size-set'):
size_name = str(int(tag.get_property('size-points')))
elif tag.get_property('justification'):
justify = True
justify_type = tag.get_property('justification').value_nick
for tag in ('bold', 'italic', 'underline'):
self.tools[tag].handler_block(self.tool_ids[tag])
self.tools[tag].set_active(locks[tag])
self.tools[tag].handler_unblock(self.tool_ids[tag])
for tag, attr, name in (('font_family', self.families, font_name),
('size', self.sizes, size_name)):
self.tools[tag].child.handler_block(self.tool_ids[tag])
self.tools[tag].child.set_active(attr.index(name))
self.tools[tag].child.handler_unblock(self.tool_ids[tag])
if justify_type != self.current_font_prop['justify']:
tags = ('left', 'center', 'right', 'fill')
for tag in tags:
self.tools[tag].handler_block(self.tool_ids[tag])
self.tools[justify_type].set_active(justify)
for tag in tags:
self.tools[tag].handler_unblock(self.tool_ids[tag])
self.current_font_prop['justify'] = justify_type
def persist_style(self, *args):
'''Persistence of style when it is insert some text'''
for tag in self.start_tags:
start = self.text_buffer.get_iter_at_mark(self.start_tags[tag])
end = self.text_buffer.get_iter_at_mark(self.end_tags[tag])
justify_tags = ('left', 'center', 'right', 'fill')
if tag in ('bold', 'italic', 'underline'):
self.text_buffer.apply_tag_by_name(tag, start, end)
elif tag in ('foreground', 'background', 'font_family', 'size'):
self.text_buffer.apply_tag(self.gen_tag(
self.current_font_prop[tag], tag), start, end)
elif tag in justify_tags:
self.text_buffer.apply_tag_by_name(tag, start, end)
def action_style_font(self, widget, texttag, tag):
'''
Apply style to text (selected or not) tag (bold, italic, underline)
widget (button was clicked) texttag (correct tag in this method)
'''
if widget.get_active():
if self.text_buffer.get_selection_bounds():
start, end = self.text_buffer.get_selection_bounds()
self.text_buffer.apply_tag(texttag, start, end)
else:
mark = self.text_buffer.get_iter_at_mark(
self.text_buffer.get_insert())
start = self.text_buffer.create_mark(None, mark, True)
end = self.text_buffer.create_mark(None, mark, False)
self.start_tags[tag] = start
self.end_tags[tag] = end
else:
if self.text_buffer.get_selection_bounds():
start, end = self.text_buffer.get_selection_bounds()
self.text_buffer.remove_tag_by_name(tag, start, end)
else:
if tag in self.start_tags:
del(self.start_tags[tag], self.end_tags[tag])
def action_justification(self, widget, tag):
'''Justify text of different tags (left, right, center, fill)'''
if self.text_buffer.get_selection_bounds():
start, end = self.text_buffer.get_selection_bounds()
line = start.get_line()
iter_line = self.text_buffer.get_iter_at_line(line)
if not end.ends_line():
end.forward_to_line_end()
self.text_buffer.apply_tag_by_name(tag, iter_line, end)
else:
mark = self.text_buffer.get_iter_at_mark(
self.text_buffer.get_insert())
start = self.text_buffer.create_mark(None, mark, True)
end = self.text_buffer.get_iter_at_mark(start)
if not end.ends_line():
end.forward_to_line_end()
line = end.get_line()
iter_line = self.text_buffer.get_iter_at_line(line)
if widget.get_active():
self.start_tags[tag] = self.text_buffer.create_mark(None,
iter_line, True)
self.end_tags[tag] = self.text_buffer.create_mark(None, end, False)
self.text_buffer.apply_tag_by_name(tag, iter_line, end)
else:
self.text_buffer.remove_tag_by_name(tag, iter_line, end)
if tag in self.start_tags:
del(self.start_tags[tag], self.end_tags[tag])
self.current_font_prop['justify'] = tag
def action_prop_font(self, widget, tag):
'''
Apply style to text (selected or not) tag (color foreground, color
background, font-family and font-size)
'''
content = None
if tag in ['foreground', 'background']:
# Deactivate focus_out to not lose selection
self.focus_out = False
labels = {
'foreground': _('Select a foreground color'),
'background': _('Select a background color'),
}
dialog = gtk.ColorSelectionDialog(labels[tag])
dialog.set_transient_for(get_toplevel_window())
dialog.set_resizable(False)
dialog.colorsel.set_has_palette(True)
dialog.colorsel.set_current_color(self.current_font_prop[tag])
res = dialog.run()
if res == gtk.RESPONSE_OK:
content = dialog.colorsel.get_current_color()
self.current_font_prop[tag] = content
dialog.destroy()
self.focus_out = True
else:
content = self.tools[tag].child.get_active_text()
font = self.current_font_prop[tag]
self.current_font_prop[tag] = content
bounds = self.text_buffer.get_selection_bounds()
if bounds:
start, end = bounds
if tag in ('font_family', 'size'):
self.text_buffer.remove_tag(
self.gen_tag(font, tag), start, end)
self.text_buffer.apply_tag(self.gen_tag(content, tag), start, end)
else:
mark = self.text_buffer.get_iter_at_mark(
self.text_buffer.get_insert())
start = self.text_buffer.create_mark(None, mark, True)
end = self.text_buffer.create_mark(None, mark, False)
self.start_tags[tag] = start
self.end_tags[tag] = end
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