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# Classes responsible for drawing signs in the Vim user interface.
import vim
class VimSign(object):
SIGN_TEXT_BREAKPOINT_RESOLVED = "B>"
SIGN_TEXT_BREAKPOINT_UNRESOLVED = "b>"
SIGN_TEXT_PC = "->"
SIGN_HIGHLIGHT_COLOUR_PC = 'darkblue'
# unique sign id (for ':[sign/highlight] define)
sign_id = 1
# unique name id (for ':sign place')
name_id = 1
# Map of {(sign_text, highlight_colour) --> sign_name}
defined_signs = {}
def __init__(self, sign_text, buffer, line_number, highlight_colour=None):
""" Define the sign and highlight (if applicable) and show the sign. """
# Get the sign name, either by defining it, or looking it up in the map
# of defined signs
key = (sign_text, highlight_colour)
if key not in VimSign.defined_signs:
name = self.define(sign_text, highlight_colour)
else:
name = VimSign.defined_signs[key]
self.show(name, buffer.number, line_number)
pass
def define(self, sign_text, highlight_colour):
""" Defines sign and highlight (if highlight_colour is not None). """
sign_name = "sign%d" % VimSign.name_id
if highlight_colour is None:
vim.command("sign define %s text=%s" % (sign_name, sign_text))
else:
self.highlight_name = "highlight%d" % VimSign.name_id
vim.command(
"highlight %s ctermbg=%s guibg=%s" %
(self.highlight_name, highlight_colour, highlight_colour))
vim.command(
"sign define %s text=%s linehl=%s texthl=%s" %
(sign_name, sign_text, self.highlight_name, self.highlight_name))
VimSign.defined_signs[(sign_text, highlight_colour)] = sign_name
VimSign.name_id += 1
return sign_name
def show(self, name, buffer_number, line_number):
self.id = VimSign.sign_id
VimSign.sign_id += 1
vim.command("sign place %d name=%s line=%d buffer=%s" %
(self.id, name, line_number, buffer_number))
pass
def hide(self):
vim.command("sign unplace %d" % self.id)
pass
class BreakpointSign(VimSign):
def __init__(self, buffer, line_number, is_resolved):
txt = VimSign.SIGN_TEXT_BREAKPOINT_RESOLVED if is_resolved else VimSign.SIGN_TEXT_BREAKPOINT_UNRESOLVED
super(BreakpointSign, self).__init__(txt, buffer, line_number)
class PCSign(VimSign):
def __init__(self, buffer, line_number, is_selected_thread):
super(
PCSign,
self).__init__(
VimSign.SIGN_TEXT_PC,
buffer,
line_number,
VimSign.SIGN_HIGHLIGHT_COLOUR_PC if is_selected_thread else None)
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