def __init__(self, xyz, body, walker, title, dim=None):
"""
@param xyz: XYZ data
@param body: Top-level widget
@param walker: SimpleWalker or any walker-like instance
@param title: ListBox title
Required resources: title, border, box, selected
"""
self.xyz = xyz
if dim is None:
_dim = self._get_dim()
else:
_dim = dim
self._walker = walker
self._keys = Keys()
self.listbox = lowui.ListBox(walker)
self.title = title
self._listbox = lowui.AttrWrap(self.listbox, self._attr(u"box"))
self._box = Border(self._listbox, title, self._attr(u"title"),
self._attr(u"border"))
_box = lowui.Overlay(self._box, body, align.CENTER, _dim[0],
align.MIDDLE, _dim[1])
super(XYZListBox, self).__init__(_box)
class XYZListBox(lowui.WidgetWrap):
"""
Simple list box
"""
# Skin rulesets resolution order
resolution = (u"list_box", u"box", u"widget")
def __init__(self, xyz, body, walker, title, dim=None):
"""
@param xyz: XYZ data
@param body: Top-level widget
@param walker: SimpleWalker or any walker-like instance
@param title: ListBox title
Required resources: title, border, box, selected
"""
self.xyz = xyz
if dim is None:
_dim = self._get_dim()
else:
_dim = dim
self._walker = walker
self._keys = Keys()
self.listbox = lowui.ListBox(walker)
self.title = title
self._listbox = lowui.AttrWrap(self.listbox, self._attr(u"box"))
self._box = Border(self._listbox, title, self._attr(u"title"),
self._attr(u"border"))
_box = lowui.Overlay(self._box, body, align.CENTER, _dim[0],
align.MIDDLE, _dim[1])
super(XYZListBox, self).__init__(_box)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def show(self, dim=None, exit_keys=None, custom=None):
"""
Show list
@param custom: Function for custom key processing.
Accepted arguments: key and NumEntry instance of focused
entry.
If returns True - continue with internal processing
If returns False - next iteration
If returns None - exit
"""
exit_keys = exit_keys or []
if dim is None:
dim = self.xyz.screen.get_cols_rows()
while True:
self.xyz.screen.draw_screen(dim, self.render(dim, True))
_i = self.xyz.input.get()
if self.xyz.input.WIN_RESIZE in _i:
dim = self.xyz.screen.get_cols_rows()
continue
if _i:
# Check if custom processing required
if callable(custom):
(focus, _) = self.listbox.get_focus()
r = custom(_i, focus)
if r is None:
return
elif r == False:
continue
for _k in _i:
if _k == self._keys.ESC:
return
elif _k == "j":
_k = self._keys.DOWN
elif _k == "k":
_k = self._keys.UP
self._listbox.keypress(dim, _k)
# Also quit on specified keys if any
if _k in exit_keys:
return
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def set_title(self, title):
"""
Change title
"""
self.title = title
self._box.set_title(title)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def _attr(self, name):
"""
Find palette
"""
return self.xyz.skin.attr(self.resolution, name)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def _get_dim(self):
_dim = self.xyz.screen.get_cols_rows()
return (_dim[0] - 4, _dim[1] - 4)