Newton_Editor/plugins/gtksourceview/colorize/plugin.py

229 lines
7.1 KiB
Python

# Python imports
import random
# Lib imports
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('Gdk', '3.0')
from gi.repository import Gtk
from gi.repository import Gdk
# Application imports
from plugins.plugin_base import PluginBase
from .color_converter_mixin import ColorConverterMixin
class Plugin(ColorConverterMixin, PluginBase):
def __init__(self):
super().__init__()
self.name = "Colorize" # NOTE: Need to remove after establishing private bidirectional 1-1 message bus
# where self.name should not be needed for message comms
self.tag_stub_name = "colorize_tag"
self._buffer = None
def run(self):
...
def generate_reference_ui_element(self):
...
def subscribe_to_events(self):
self._event_system.subscribe("set_active_src_view", self._set_active_src_view)
self._event_system.subscribe("buffer_changed_first_load", self._buffer_changed_first_load)
self._event_system.subscribe("buffer_changed", self._buffer_changed)
def _set_active_src_view(self, source_view):
self._active_src_view = source_view
def _buffer_changed_first_load(self, buffer):
self._buffer = buffer
self._do_colorize(buffer)
def _buffer_changed(self, buffer):
self._event_system.emit("pause_event_processing")
self._handle_colorize(buffer)
self._event_system.emit("resume_event_processing")
def _handle_colorize(self, buffer):
self._buffer = buffer
tag_table = buffer.get_tag_table()
mark = buffer.get_insert()
start = None
end = buffer.get_iter_at_mark(mark)
i = 0
walker_iter = end.copy()
working_tag = self.find_working_tag(walker_iter, i)
if working_tag:
start = self.find_start_range(walker_iter, working_tag)
self.find_end_range(end, working_tag)
buffer.remove_tag(working_tag, start, end)
else:
start = self.traverse_backward_25_or_less(walker_iter)
self.traverse_forward_25_or_less(end)
self._do_colorize(buffer, start, end)
def find_working_tag(self, walker_iter, i):
tags = walker_iter.get_tags()
for tag in tags:
if tag.props.name and self.tag_stub_name in tag.props.name:
return tag
res = walker_iter.backward_char()
if not res: return
if i > 25: return
return self.find_working_tag(walker_iter, i + 1)
def find_start_range(self, walker_iter, working_tag):
tags = walker_iter.get_tags()
for tag in tags:
if tag.props.name and working_tag.props.name in tag.props.name:
res = walker_iter.backward_char()
if res:
self.find_start_range(walker_iter, working_tag)
return walker_iter
def find_end_range(self, end, working_tag):
tags = end.get_tags()
for tag in tags:
if tag.props.name and working_tag.props.name in tag.props.name:
res = end.forward_char()
if res:
self.find_end_range(end, working_tag)
def traverse_backward_25_or_less(self, walker_iter):
i = 1
while i <= 25:
res = walker_iter.backward_char()
if not res: break
i += 1
def traverse_forward_25_or_less(self, end):
i = 1
while i <= 25:
res = end.forward_char()
if not res: break
i += 1
def _do_colorize(self, buffer = None, start_itr = None, end_itr = None):
# rgb(a), hsl, hsv
results = self.finalize_non_hex_matches( self.collect_preliminary_results(buffer, start_itr, end_itr) )
self.process_results(buffer, results)
# hex color search
results = self.finalize_hex_matches( self.collect_preliminary_hex_results(buffer, start_itr, end_itr) )
self.process_results(buffer, results)
def collect_preliminary_results(self, buffer = None, start_itr = None, end_itr = None):
if not buffer: return []
if not start_itr:
start_itr = buffer.get_start_iter()
results1 = self.search(start_itr, end_itr, "rgb")
results2 = self.search(start_itr, end_itr, "hsl")
results3 = self.search(start_itr, end_itr, "hsv")
return results1 + results2 + results3
def collect_preliminary_hex_results(self, buffer = None, start_itr = None, end_itr = None):
if not buffer: return []
if not start_itr:
start_itr = buffer.get_start_iter()
results1 = self.search(start_itr, end_itr, "#")
return results1
def search(self, start_itr = None, end_itr = None, query = None):
if not start_itr or not query: return None, None
results = []
flags = Gtk.TextSearchFlags.VISIBLE_ONLY | Gtk.TextSearchFlags.TEXT_ONLY
while True:
result = start_itr.forward_search(query, flags, end_itr)
if not result: break
results.append(result)
start_itr = result[1]
return results
def finalize_non_hex_matches(self, result_hits: [] = []):
results = []
for start, end in result_hits:
if end.get_char() == "a":
end.forward_char()
if end.get_char() != "(":
continue
end.forward_chars(21)
if end.get_char() == ")":
end.forward_char()
results.append([start, end])
continue
while end.get_char() != "(":
if end.get_char() == ")":
end.forward_char()
results.append([start, end])
break
end.forward_chars(-1)
return results
def finalize_hex_matches(self, result_hits: [] = []):
results = []
for start, end in result_hits:
i = 0
_ch = end.get_char()
ch = ord(end.get_char()) if _ch else -1
while ((ch >= 48 and ch <= 57) or (ch >= 65 and ch <= 70) or (ch >= 97 and ch <= 102)):
if i > 16: break
i += 1
end.forward_char()
_ch = end.get_char()
ch = ord(end.get_char()) if _ch else -1
if i in [3, 4, 6, 8, 9, 12, 16]:
results.append([start, end])
return results
def process_results(self, buffer, results):
for start, end in results:
text = self.get_color_text(buffer, start, end)
color = Gdk.RGBA()
if color.parse(text):
tag = self.get_colorized_tag(buffer, text, color)
buffer.apply_tag(tag, start, end)
def get_colorized_tag(self, buffer, tag, color: Gdk.RGBA):
tag_table = buffer.get_tag_table()
colorize_tag = f"{self.tag_stub_name}_{tag}"
search_tag = tag_table.lookup(colorize_tag)
if not search_tag:
search_tag = buffer.create_tag(colorize_tag, background_rgba = color)
return search_tag