def OnFirstLayout(self, sender, e):
p = self.popup
if p.IsOpen:
child = p.Child
rv = wpf.get_root_visual()
pos, end, line = utils.get_current_line(self.tbx)
offset = wpf.get_position(self.tbx)
sz = wpf.measure_string(self._prefix, self.tbx.FontFamily, self.tbx.FontSize)
desired_sz = wpf.measure(child)
p.VerticalOffset = offset.Y + (self.tbx.Text[:pos].count('\n')+1) * sz.Height
if p.VerticalOffset > rv.ActualHeight/2:
# Display above the line
p.VerticalOffset -= desired_sz.Height + sz.Height
if p.VerticalOffset < 10:
child.MaxHeight = desired_sz.Height - (10 - p.VerticalOffset)
p.VerticalOffset = 10
elif p.VerticalOffset + desired_sz.Height + 10 > rv.ActualHeight:
child.MaxHeight = rv.ActualHeight - p.VerticalOffset - 10
p.HorizontalOffset = offset.X + sz.Width
if p.HorizontalOffset + desired_sz.Width > rv.ActualWidth-10:
# Display further left
p.HorizontalOffset = rv.ActualWidth - 10 - desired_sz.Width
if p.Child is self.member_lbx:
start = end - len(line)
self.update_member_list(line[:pos-start])
def OnUpdateCursor(self, *ignore):
if self._can_update:
p = self.popup
offset = wpf.get_position(self.tbx)
pos, end, line = utils.get_current_line(self.tbx)
sz = wpf.measure_string(self.tbx.Text[end-len(line):pos], self.tbx.FontFamily, self.tbx.FontSize)
x = offset.X + sz.Width
y = offset.Y + self.tbx.Text[:pos].count('\n') * sz.Height
if x != p.HorizontalOffset:
p.HorizontalOffset = x
if y != p.VerticalOffset:
p.VerticalOffset = y
# Check if the cursor is out of bounds or if the textbox is hidden
cursor_pos = wpf.Point(x, y)
bounds = wpf.Rect(wpf.get_position(self.bounding_sv), wpf.Size(self.bounding_sv.ViewportWidth, self.bounding_sv.ViewportHeight))
if bounds.Contains(wpf.Point(cursor_pos.X, cursor_pos.Y + self.cursor.ActualHeight/2)) and bounds.Contains(offset):
if not p.IsOpen:
self.show()
else:
if p.IsOpen:
self.hide()
def complete(self):
pos, end, line = utils.get_current_line(self.tbx)
completion = self.find_completion(line[:pos])
if completion is not None:
self.tbx.Text = self.tbx.Text[:pos] + completion + self.tbx.Text[pos:]
self.tbx.SelectionStart = pos + len(completion)
return True
return False
def show(self, child):
p = self.popup
p.Child = child
child.MaxHeight = Double.PositiveInfinity
pos, end, line = utils.get_current_line(self.tbx)
self._prefix = self.tbx.Text[end-len(line):pos]
wpf.on_first_layout(child, self.OnFirstLayout)
p.IsOpen = True
def complete_from_member_list(self):
if self.member_lbx.SelectedItem:
pos, end, line = utils.get_current_line(self.tbx)
start = end-len(line)
s = ''.join(self._prefix.rpartition('.')[:2]) + self.member_lbx.SelectedItem
self.tbx.Text = self.tbx.Text[:start] + s + self.tbx.Text[pos:]
self.tbx.SelectionStart = start + len(s)
self.hide()
return True
else:
self.hide()
return False
def OnTextChanged(self, sender, e):
completions = self.filterCompletions
self.filterCompletions = False
pos, end, line = utils.get_current_line(self.tbx)
if self.popup.IsOpen and self._prefix not in line:
self.hide()
if pos > 0:
start = end - len(line)
if self.tbx.Text[pos-1] == '.' and pos > 1:
if self.tbx.Text[pos-2].isalnum() or self.tbx.Text[pos-2] == '_':
self.show_member_list(line[:pos-start])
elif self.tbx.Text[pos-1] == '(':
self.hide()
self.show_calltip(line[:pos-start-1])
elif self.tbx.Text[pos-1] == ')':
self._show_calltip = None
self.hide()
elif '.' in line:
if completions:
self.show_member_list(line[:pos-start], completions)
elif self.popup.IsOpen and self.popup.Child is self.member_list:
self.update_member_list(line[:pos-start])
def get_current_line(self):
return utils.get_current_line(self.prompt)