def delete_selection(self):
"""
Common code for deleting a selection used by many edit actions.
"""
view = self.view
doc = view.document
# delete the selection
selection = view.selection.get_normalised()
d = DeleteDelta(doc, selection.start, selection.end - selection.start + 1)
d.do()
self.deltas.append(d)
view.selection = None
# move the cursor (insert point) to the start of where the selection
# was before we deleted it
view.cursor_pos = doc.offset_to_cursor_pos(selection.start)
def do(self):
view = self.view
doc = view.document
if view.selection:
self.delete_selection()
else:
offset = doc.cursor_pos_to_offset(view.cursor_pos)
# if we're at the end of the file, do nothing
if offset >= len(doc.content)-1:
return
# delete the character under the cursor
d = DeleteDelta(doc, offset, 1)
d.do()
self.deltas.append(d)
def do(self):
view = self.view
doc = view.document
settings = self.editor.settings
if view.selection:
selection = view.selection.get_normalised()
from_line = doc.offset_to_cursor_pos(selection.start)[0]
to_line = doc.offset_to_cursor_pos(selection.end)[0]
else:
from_line = view.cursor_pos[0]
to_line = from_line
for y in xrange(from_line, to_line + 1):
line = doc.get_line(y)
offset = doc.cursor_pos_to_offset((y, 0))
if line[: len(self.comment_string)] == self.comment_string:
d = DeleteDelta(doc, offset, len(self.comment_string))
else:
d = InsertDelta(doc, offset, self.comment_string)
d.do()
self.deltas.append(d)
# move the cursor if necessary
y, x = view.cursor_pos
line = doc.get_line(y)
if line[: len(self.comment_string)] == self.comment_string:
# we added comment_string, so increase cursor pos
if x != 0:
x += len(self.comment_string)
if x > len(line):
x = len(line)
view.cursor_pos = (y, x)
else:
# we removed comment_string, so decrease cursor pos
x -= len(self.comment_string)
if x < 0:
x = 0
view.cursor_pos = (y, x)
# not sure how best to grow/shrink the selection right now,
# so just destroying it for now
view.selection = None
def do(self):
view = self.view
doc = view.document
if view.selection:
self.delete_selection()
else:
offset = doc.cursor_pos_to_offset(view.cursor_pos)
# if we're at the start of the file, do nothing
if offset <= 0:
return
# delete the character before the cursor
d = DeleteDelta(doc, offset-1, 1)
d.do()
self.deltas.append(d)
view.cursor_pos = doc.offset_to_cursor_pos(offset-1)
def do(self):
view = self.view
doc = view.document
settings = self.editor.settings
if view.selection:
# unindent the selection
selection = view.selection.get_normalised()
# selections that grow upwards need slightly different
# attention to selections that grow downwards
if selection.start == view.selection.start:
selection_direction = "down"
else:
selection_direction = "up"
# convert the offsets and unpack
start_pos = doc.offset_to_cursor_pos(selection.start)
start_y, start_x = start_pos
end_pos = doc.offset_to_cursor_pos(selection.end)
end_y, end_x = end_pos
# add the delete deltas
spaces_per_line = []
for y in xrange(start_y, end_y+1):
line = doc.get_line(y).replace('\t', u' '*settings.tab_size)
oline = line
for i in xrange(settings.indent_width):
if line and line[0] == u' ':
line = line[1:]
else:
break
num_spaces = len(oline)-len(line)
spaces_per_line.append(num_spaces)
if num_spaces:
offset = doc.cursor_pos_to_offset((y, 0))
d = DeleteDelta(doc, offset, num_spaces)
d.do()
self.deltas.append(d)
if selection_direction == "down":
start_x -= spaces_per_line[0]
if start_x < 0:
start_x = 0
view.selection.start = doc.cursor_pos_to_offset(
(start_y, start_x))
end_x -= spaces_per_line[-1]
if end_x < 0:
end_x = 0
view.selection.end = doc.cursor_pos_to_offset((end_y, end_x))
else:
start_x -= spaces_per_line[-1]
if start_x < 0:
start_x = 0
view.selection.start = doc.cursor_pos_to_offset(
(start_y, start_x))
end_x -= spaces_per_line[0]
if end_x < 0:
end_x = 0
view.selection.end = doc.cursor_pos_to_offset((end_y, end_x))
else:
# unindent only the current line
y, x = view.cursor_pos
line = doc.get_line(y).replace('\t', u' '*settings.tab_size)
oline = line
for i in xrange(settings.indent_width):
if line and line[0] == u' ':
line = line[1:]
else:
break
num_spaces = len(oline)-len(line)
if num_spaces:
offset = doc.cursor_pos_to_offset((y, 0))
d = DeleteDelta(doc, offset, num_spaces)
d.do()
self.deltas.append(d)
x -= num_spaces
if x < 0:
x = 0
view.cursor_pos = (y, x)
