def __check_value_to_mark(self):
"""
Look at visible treeview range, and mark char as needed
"""
try:
(start, end) = self.__view.get_visible_range()
# As start may not really visible, use next
# start.next()
if start is not None and end is not None:
# Check if start is really visible
area = self.__view.get_cell_area(start)
if area.y + area.height / 2 < 0:
start.next()
# Check if start is non static:
value = self.__get_value_for_path(start, 0)
while value is not None and value < 0:
start.next()
value = self.__get_value_for_path(start, 0)
# Check if end is really visible
area = self.__view.get_cell_area(end)
scrolled_allocation = self.__scrolled.get_allocation()
if area.y + area.height / 2 > scrolled_allocation.height:
end.prev()
start_value = self.__get_value_for_path(start, 3)
end_value = self.__get_value_for_path(end, 3)
if start_value is not None and end_value is not None:
start_value = noaccents(index_of(start_value[0])).upper()
end_value = noaccents(index_of(end_value[0])).upper()
self.__mark_values(start_value, end_value)
except:
pass # get_visible_range() == None
def __on_button_press_event(self, eventbox, event):
"""
Scroll to activated child char
"""
char = None
row = None
for child in self.__grid.get_children():
allocation = child.get_allocation()
if allocation.y <= event.y <= allocation.y + allocation.height:
char = child.get_text()
break
if char is not None:
if char == "▲":
row = self.__listbox.get_children()[0]
elif char == "▼":
row = self.__listbox.get_children()[-1]
else:
for child in self.__listbox.get_children():
if child.id < 0:
continue
if noaccents(index_of(child.sortname))[0].upper() == char:
row = child
break
if row is not None:
values = row.translate_coordinates(self.__listbox, 0, 0)
if values is not None:
adj = self.__scrolled.get_vadjustment()
adj.set_value(values[1])
def __on_button_press(self, eventbox, event):
"""
Scroll to activated child char
"""
char = None
for child in self.__grid.get_children():
allocation = child.get_allocation()
if event.y >= allocation.y and\
event.y <= allocation.y + allocation.height:
char = child.get_text()
break
if char is not None:
if char == "▲":
self.__view.scroll_to_cell(
self.__model.get_path(self.__model[0].iter), None, True, 0,
0)
elif char == "▼":
self.__view.scroll_to_cell(
self.__model.get_path(self.__model[-1].iter), None, True,
0, 0)
else:
for row in self.__model:
if row[0] < 0:
continue
if noaccents(index_of(row[3]))[0].upper() == char:
self.__view.scroll_to_cell(
self.__model.get_path(row.iter), None, True, 0, 0)
break
def add_char(self, c):
"""
Add a char to widget, will not be shown
@param c as char
"""
to_add = noaccents(index_of(c)).upper()
if to_add not in self.__chars:
self.__chars.append(to_add)
def __mark_values(self, start, end):
"""
Mark values
@param start as char
@param end as char
"""
start = noaccents(index_of(start)).upper()
end = noaccents(index_of(end)).upper()
chars = sorted(self.__chars, key=strxfrm)
start_idx = chars.index(start)
end_idx = chars.index(end)
selected = chars[start_idx:end_idx + 1] + ["▲", "▼"]
for child in self.__grid.get_children():
label = child.get_text()
mark = True if label in selected else False
if mark:
child.set_opacity(0.9)
if label == chars[start_idx]:
values = child.translate_coordinates(self.__grid, 0, 0)
if values is not None:
self.get_vadjustment().set_value(values[1])
else:
child.set_opacity(0.4)