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- Cleanup and optimize text widget.
  - max_line_length is fully calculated less often.
This commit is contained in:
Andrew Hamilton 2022-05-13 10:16:30 +10:00
parent 59314ad325
commit d0a73b89b6
1 changed files with 21 additions and 17 deletions
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38
diff_edit/editor.py
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@ -87,37 +87,41 @@ class Text:
def __len__(self): def __len__(self):
return len(self.lines) return len(self.lines)
def __getitem__(self, line_index):
return self.lines[line_index]
@functools.lru_cache(maxsize=5000)
def _convert_line(self, line, max_line_length):
return expand_str(line).ljust(max_line_length)
def __setitem__(self, key, value):
if type(key) == int:
self._replace_lines(slice(key, key + 1), [value])
else: # slice
self._replace_lines(key, value)
@functools.cached_property @functools.cached_property
def max_line_length(self): def max_line_length(self):
return max(len(expand_str(line)) for line in self.lines) return max(len(expand_str(line)) for line in self.lines)
def _replace_lines(self, slice_, new_lines): def _new_line(self, line):
self.lines[slice_] = new_lines self.max_line_length = max(self.max_line_length, len(expand_str(line)))
def __getitem__(self, line_index):
return self.lines[line_index]
def __setitem__(self, key, value):
if type(key) == int:
if len(expand_str(self.lines[key])) != self.max_line_length:
self.lines[key] = value
self._new_line(value)
return
self.lines[key] = value
with contextlib.suppress(AttributeError): with contextlib.suppress(AttributeError):
del self.max_line_length del self.max_line_length
def insert(self, index, line): def insert(self, index, line):
self._replace_lines(slice(index, index), [line]) self.lines.insert(index, line)
self._new_line(line)
def append(self, line): def append(self, line):
self.insert(len(self.lines), line) self.lines.append(line)
self._new_line(line)
def get_text(self): def get_text(self):
return "\n".join(self) return "\n".join(self)
@functools.lru_cache(maxsize=5000)
def _convert_line(self, line, max_line_length):
return expand_str(line).ljust(max_line_length)
def appearance(self): def appearance(self):
return [self._convert_line(line, self.max_line_length) for line in self.lines] return [self._convert_line(line, self.max_line_length) for line in self.lines]