def _get_widget_path_at_line(self, lineno, root_lineno=0):
'''To get widget path of widget at line
'''
if self.text == '':
return []
text = self.text
# Remove all comments
text = re.sub(r'#.+', '', text)
lines = text.splitlines()
line = lines[lineno]
# Search for the line containing widget's name
_lineno = lineno
while line.find(':') != -1 and \
line.strip().find(':') != len(line.strip()) - 1:
lineno -= 1
line = lines[lineno]
path = []
child_count = 0
# From current line go above and
# fill number of children above widget's rule
while _lineno >= root_lineno and lines[_lineno].strip() != "" and \
get_indentation(lines[lineno]) != 0:
_lineno = lineno - 1
diff_indent = get_indentation(lines[lineno]) - \
get_indentation(lines[_lineno])
while _lineno >= root_lineno and (lines[_lineno].strip() == ''
or diff_indent <= 0):
if lines[_lineno].strip() != '' and diff_indent == 0 and \
'canvas' not in lines[_lineno] and \
(lines[_lineno].find(':') == -1 or
lines[_lineno].find(':') ==
len(lines[_lineno].rstrip()) - 1):
child_count += 1
_lineno -= 1
diff_indent = get_indentation(lines[lineno]) - \
get_indentation(lines[_lineno])
lineno = _lineno
if _lineno > root_lineno:
_lineno += 1
if 'canvas' not in lines[_lineno] and \
lines[_lineno].strip().find(':') == \
len(lines[_lineno].strip()) - 1:
path.insert(0, child_count)
child_count = 0
return path
def _find_widget_place(self, path, lines, total_lines, lineno, indent=4):
'''To find the line where widget is declared according to path
'''
child_count = 0
path_index = 1
path_length = len(path)
# From starting line go down to find the widget's rule according to path
while lineno < total_lines and path_index < path_length:
line = lines[lineno]
_indent = get_indentation(line)
colon_pos = line.find(':')
if _indent == indent and line.strip() != '':
if colon_pos != -1:
line = line.rstrip()
if colon_pos == len(line) - 1 and 'canvas' not in line:
line = line[:colon_pos].lstrip()
if child_count == path[path_index]:
path_index += 1
indent = _indent + 4
child_count = 0
else:
child_count += 1
else:
child_count += 1
lineno += 1
return lineno - 1
def get_widget_text_pos_from_kv(self, widget, parent=None,
path_to_widget=None):
'''To get start and end pos of widget's rule in kv text
:param path_to_widget: array with widget path
:param parent: parent of widget
:param widget: widget to find the kv text
'''
if not path_to_widget:
path_to_widget = self.get_widget_path(widget)
path_to_widget.reverse()
# Go to widget's rule's line and determines all its rule's
# and it's child if any. Then delete them
text = re.sub(r'#.+', '', self.text)
lines = text.splitlines()
total_lines = len(lines)
root_lineno = 0
root_name = self.playground.root_name
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
widget_lineno = self._find_widget_place(path_to_widget, lines,
total_lines, root_lineno + 1)
widget_line = lines[widget_lineno]
indent = len(widget_line) - len(widget_line.lstrip())
lineno = widget_lineno
_indent = indent + 1
line = widget_line
while line.strip() == '' or _indent > indent:
lineno += 1
if lineno >= total_lines:
break
line = lines[lineno]
_indent = len(line) - len(line.lstrip())
delete_until_line = lineno - 1
line = lines[delete_until_line]
while line.strip() == '':
delete_until_line -= 1
line = lines[delete_until_line]
widget_line_pos = get_line_start_pos(self.text, widget_lineno)
delete_until_line_pos = -1
if delete_until_line == total_lines - 1:
delete_until_line_pos = len(self.text)
else:
delete_until_line_pos = get_line_end_pos(self.text,
delete_until_line)
self._reload = False
return widget_line_pos, delete_until_line_pos
def shift_widget(self, widget, from_index):
'''This function will shift widget's kv str from one position
to another.
:param from_index: original index of widget before moving
:param widget: shifted widget
'''
self._reload = False
path = self.get_widget_path(widget)
path.reverse()
# copies the original path
prev_path = list(path)
# get the path before shifting the widget
prev_path[-1] = len(widget.parent.children) - from_index - 1
start_pos, end_pos = self.get_widget_text_pos_from_kv(
widget, widget.parent, path_to_widget=prev_path)
widget_text = self.text[start_pos:end_pos]
if widget.parent.children.index(widget) == 0:
self.text = self.text[:start_pos] + self.text[end_pos:]
self.add_widget_to_parent(widget, widget.parent,
kv_str=widget_text)
else:
self.text = self.text[:start_pos] + self.text[end_pos:]
text = re.sub(r'#.+', '', self.text)
lines = text.splitlines()
total_lines = len(lines)
root_lineno = 0
root_name = self.playground.root_name
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
next_widget_path = path
lineno = self._find_widget_place(next_widget_path, lines,
total_lines,
root_lineno + 1)
self.cursor = (0, lineno)
self.insert_text(widget_text + '\n')
def set_property_value(self, widget, prop, value, proptype):
'''To find and change the value of property of widget rule in text
'''
# Do not add property if value is empty and
# property is not a string property
self._reload = False
if not isinstance(widget.properties()[prop], StringProperty) and\
value == '':
return
path_to_widget = self.get_widget_path(widget)
path_to_widget.reverse()
# Go to the line where widget is declared
lines = re.sub(r'#.+', '', self.text.rstrip()).splitlines()
total_lines = len(lines)
root_name = self.playground.root_name
total_lines = len(lines)
root_lineno = 0
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
widget_lineno = self._find_widget_place(path_to_widget, lines,
total_lines, root_lineno + 1)
widget_line = lines[widget_lineno]
if not widget_line.strip():
return
indent = get_indentation(widget_line)
prop_found = False
if ':' not in widget_line:
# If cannot find ':' then insert it
self.cursor = (len(lines[widget_lineno]), widget_lineno)
lines[widget_lineno] += ':'
self.insert_text(':')
else:
# Else find if property has already been declared with a value
lineno = widget_lineno + 1
# But if widget line is the last line in the text
if lineno < total_lines:
line = lines[lineno]
_indent = get_indentation(line)
colon_pos = -1
while lineno < total_lines and (line.strip() == '' or
_indent > indent):
line = lines[lineno]
_indent = get_indentation(line)
if line.strip() != '':
colon_pos = line.find(':')
if colon_pos == -1:
break
if colon_pos == len(line.rstrip()) - 1:
break
if prop == line[:colon_pos].strip():
prop_found = True
break
lineno += 1
if prop_found:
# if property found then change its value
_pos_prop_value = get_line_start_pos(self.text, lineno) + \
colon_pos + 2
if lineno == total_lines - 1:
_line_end_pos = len(self.text)
else:
_line_end_pos = get_line_end_pos(self.text, lineno)
if proptype == 'StringProperty' or \
(proptype == 'OptionProperty' and
not isinstance(value, list)):
value = "'{}'".format(value.replace("'", "\\'"))
self.text = self.text[:_pos_prop_value] + ' ' + str(value) + \
self.text[_line_end_pos:]
self.cursor = (0, lineno)
else:
# if not found then add property after the widgets line
_line_start_pos = get_line_start_pos(self.text, widget_lineno)
_line_end_pos = get_line_end_pos(self.text, widget_lineno)
if proptype == 'StringProperty' or \
(proptype == 'OptionProperty' and
not isinstance(value, list)):
value = "'{}'".format(value.replace("'", "\\'"))
indent_str = '\n'
for i in range(indent + 4):
indent_str += ' '
self.cursor = (len(lines[widget_lineno]), widget_lineno)
self.insert_text(indent_str + prop + ': ' + str(value))
def set_event_handler(self, widget, prop, value):
self._reload = False
path_to_widget = self.get_widget_path(widget)
path_to_widget.reverse()
# Go to the line where widget is declared
lines = re.sub(r'#.+', '', self.text).splitlines()
total_lines = len(lines)
root_name = self.playground.root_name
total_lines = len(lines)
root_lineno = 0
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
widget_lineno = self._find_widget_place(path_to_widget, lines,
total_lines, root_lineno + 1)
widget_line = lines[widget_lineno]
indent = get_indentation(widget_line)
prop_found = False
if not widget_line.strip():
return
if ':' not in widget_line:
# If cannot find ':' then insert it
self.cursor = (len(lines[widget_lineno]), widget_lineno)
lines[widget_lineno] += ':'
self.insert_text(':')
else:
# Else find if property has already been declared with a value
lineno = widget_lineno + 1
# But if widget line is the last line in the text
if lineno < total_lines:
line = lines[lineno]
_indent = get_indentation(line)
colon_pos = -1
while lineno < total_lines and (line.strip() == '' or
_indent > indent):
line = lines[lineno]
_indent = get_indentation(line)
if line.strip() != '':
colon_pos = line.find(':')
if colon_pos == -1:
break
if colon_pos == len(line.rstrip()) - 1:
break
if prop == line[:colon_pos].strip():
prop_found = True
break
lineno += 1
if prop_found:
if lineno == total_lines - 1:
_line_end_pos = len(self.text)
else:
_line_end_pos = get_line_end_pos(self.text, lineno)
if value != '':
# if property found then change its value
_pos_prop_value = get_line_start_pos(self.text, lineno) + \
colon_pos + 2
self.text = self.text[:_pos_prop_value] + ' ' + value + \
self.text[_line_end_pos:]
self.cursor = (0, lineno)
else:
_line_start_pos = get_line_start_pos(self.text, widget_lineno)
self.text = \
self.text[:get_line_start_pos(self.text, lineno)] + \
self.text[_line_end_pos:]
elif value != '':
# if not found then add property after the widgets line
_line_end_pos = get_line_end_pos(self.text, widget_lineno)
indent_str = '\n'
for i in range(indent + 4):
indent_str += ' '
self.cursor = (len(lines[widget_lineno]), widget_lineno)
self.insert_text(indent_str + prop + ': ' + str(value))
def get_property_value(self, widget, prop):
self._reload = False
if prop[:3] != 'on_' and \
not isinstance(widget.properties()[prop], StringProperty) and\
value == '':
return
path_to_widget = self.get_widget_path(widget)
path_to_widget.reverse()
# Go to the line where widget is declared
lines = re.sub(r'#.+', '', self.text).splitlines()
total_lines = len(lines)
root_name = self.playground.root_name
total_lines = len(lines)
root_lineno = 0
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
widget_lineno = self._find_widget_place(path_to_widget, lines,
total_lines, root_lineno + 1)
widget_line = lines[widget_lineno]
indent = get_indentation(widget_line)
prop_found = False
# Else find if property has already been declared with a value
lineno = widget_lineno + 1
# But if widget line is the last line in the text
if lineno < total_lines:
line = lines[lineno]
_indent = get_indentation(line)
colon_pos = -1
while lineno < total_lines and (line.strip() == '' or
_indent > indent):
line = lines[lineno]
_indent = get_indentation(line)
if line.strip() != '':
colon_pos = line.find(':')
if colon_pos == -1:
break
if colon_pos == len(line.rstrip()) - 1:
break
if prop == line[:colon_pos].strip():
prop_found = True
break
lineno += 1
if prop_found:
# if property found then change its value
_pos_prop_value = get_line_start_pos(self.text, lineno) + \
colon_pos + 2
if lineno == total_lines - 1:
_line_end_pos = len(self.text)
else:
_line_end_pos = get_line_end_pos(self.text, lineno)
return self.text[_pos_prop_value:_line_end_pos]
return ''
def add_widget_to_parent(self, widget, target, kv_str=''):
'''This function is called when widget is added to target.
It will search for line where parent is defined in text and will add
widget there.
'''
text = re.sub(r'#.+', '', self.text)
lines = text.splitlines()
total_lines = len(lines)
if total_lines == 0:
return
self._reload = False
# If target is not none then widget is not root widget
if target:
path_to_widget = self.get_widget_path(target)
path_to_widget.reverse()
root_lineno = 0
root_name = self.playground.root_name
for lineno, line in enumerate(lines):
pos = line.find(root_name)
if pos != -1 and get_indentation(line) == 0:
root_lineno = lineno
break
parent_lineno = self._find_widget_place(path_to_widget, lines,
total_lines,
root_lineno + 1)
if parent_lineno >= total_lines:
return
# Get text of parents line
parent_line = lines[parent_lineno]
if not parent_line.strip():
return
insert_after_line = -1
if parent_line.find(':') == -1:
# If parent_line doesn't contain ':' then insert it
# Also insert widget's rule after its properties
insert_after_line = parent_lineno
_line = 0
_line_pos = -1
_line_pos = self.text.find('\n', _line_pos + 1)
while _line <= insert_after_line:
_line_pos = self.text.find('\n', _line_pos + 1)
_line += 1
self.text = self.text[:_line_pos] + ':' + self.text[_line_pos:]
indent = len(parent_line) - len(parent_line.lstrip())
else:
# If ':' in parent_line then,
# find a place to insert widget's rule
indent = len(parent_line) - len(parent_line.lstrip())
lineno = parent_lineno
_indent = indent + 1
line = parent_line
while (line.strip() == '' or _indent > indent):
lineno += 1
if lineno >= total_lines:
break
line = lines[lineno]
_indent = len(line) - len(line.lstrip())
insert_after_line = lineno - 1
line = lines[insert_after_line]
while line.strip() == '':
insert_after_line -= 1
line = lines[insert_after_line]
to_insert = ''
# counts indentation in the beginning of the string
extra_indent = len(kv_str) - len(kv_str.lstrip())
if kv_str == '':
to_insert = type(widget).__name__ + ':'
else:
to_insert = kv_str
if insert_after_line == total_lines - 1:
# if inserting at the last line
_line_pos = len(self.text) - 1
indent = get_indent_str(indent + 4 - extra_indent)
to_add = ''
for line in to_insert.splitlines():
to_add += '\n' + indent + line
self.text = self.text[:_line_pos + 1] + to_add
else:
# inserting somewhere else
insert_after_line -= 1
_line = 0
_line_pos = -1
_line_pos = self.text.find('\n', _line_pos + 1)
while _line <= insert_after_line:
_line_pos = self.text.find('\n', _line_pos + 1)
_line += 1
self.text = self.text[:_line_pos] + '\n' + \
get_indent_str(indent + 4) + to_insert + \
self.text[_line_pos:]
else:
# widget is a root widget
parent_lineno = 0
self.cursor = (0, 0)
type_name = type(widget).__name__
is_class = False
app_widgets = get_current_project().app_widgets
for rule_name in app_widgets:
if rule_name == type_name:
is_class = True
break
if not is_class:
self.insert_text(type_name + ':\n')
self.playground.load_widget(type_name)
