def render(self, size, focus=False):
"""
Render all widgets in self.widget_list and return the results
stacked one on top of the next.
"""
maxcol = size[0]
item_rows = None
combinelist = []
for i, (w, (f, height)) in enumerate(self.contents):
item_focus = self.focus_item == w
canv = None
if f == 'fixed':
canv = w.render((maxcol, height), focus=focus and item_focus)
elif f == 'flow' or len(size) == 1:
canv = w.render((maxcol, ), focus=focus and item_focus)
else:
if item_rows is None:
item_rows = self.get_item_rows(size, focus)
rows = item_rows[i]
if rows > 0:
canv = w.render((maxcol, rows), focus=focus and item_focus)
if canv:
combinelist.append((canv, i, item_focus))
if not combinelist:
return SolidCanvas(" ", size[0], (size[1:] + (0, ))[0])
out = CanvasCombine(combinelist)
if len(size) == 2 and size[1] < out.rows():
# flow/fixed widgets rendered too large
out = CompositeCanvas(out)
out.pad_trim_top_bottom(0, size[1] - out.rows())
return out
def render(self, size, focus=False):
"""
Render all widgets in self.widget_list and return the results
stacked one on top of the next.
"""
maxcol = size[0]
item_rows = None
combinelist = []
for i, (w, (f, height)) in enumerate(self.contents):
item_focus = self.focus_item == w
canv = None
if f == "fixed":
canv = w.render((maxcol, height), focus=focus and item_focus)
elif f == "flow" or len(size) == 1:
canv = w.render((maxcol,), focus=focus and item_focus)
else:
if item_rows is None:
item_rows = self.get_item_rows(size, focus)
rows = item_rows[i]
if rows > 0:
canv = w.render((maxcol, rows), focus=focus and item_focus)
if canv:
combinelist.append((canv, i, item_focus))
if not combinelist:
return SolidCanvas(" ", size[0], (size[1:] + (0,))[0])
out = CanvasCombine(combinelist)
if len(size) == 2 and size[1] < out.rows():
# flow/fixed widgets rendered too large
out = CompositeCanvas(out)
out.pad_trim_top_bottom(0, size[1] - out.rows())
return out
def render(self, size, focus=False ):
"""
Render listbox and return canvas.
"""
(maxcol, maxrow) = size
middle, top, bottom = self.calculate_visible(
(maxcol, maxrow), focus=focus)
if middle is None:
return SolidCanvas(" ", maxcol, maxrow)
_ignore, focus_widget, focus_pos, focus_rows, cursor = middle
trim_top, fill_above = top
trim_bottom, fill_below = bottom
combinelist = []
rows = 0
fill_above.reverse() # fill_above is in bottom-up order
for widget,w_pos,w_rows in fill_above:
canvas = widget.render((maxcol,))
if w_rows != canvas.rows():
raise ListBoxError, "Widget %r at position %r within listbox calculated %d rows but rendered %d!"% (widget,w_pos,w_rows, canvas.rows())
rows += w_rows
combinelist.append((canvas, w_pos, False))
focus_canvas = focus_widget.render((maxcol,), focus=focus)
if focus_canvas.rows() != focus_rows:
raise ListBoxError, "Focus Widget %r at position %r within listbox calculated %d rows but rendered %d!"% (focus_widget,focus_pos,focus_rows, focus_canvas.rows())
c_cursor = focus_canvas.cursor
if cursor != c_cursor:
raise ListBoxError, "Focus Widget %r at position %r within listbox calculated cursor coords %r but rendered cursor coords %r!" %(focus_widget,focus_pos,cursor,c_cursor)
rows += focus_rows
combinelist.append((focus_canvas, focus_pos, True))
for widget,w_pos,w_rows in fill_below:
canvas = widget.render((maxcol,))
if w_rows != canvas.rows():
raise ListBoxError, "Widget %r at position %r within listbox calculated %d rows but rendered %d!"% (widget,w_pos,w_rows, canvas.rows())
rows += w_rows
combinelist.append((canvas, w_pos, False))
final_canvas = CanvasCombine(combinelist)
if trim_top:
final_canvas.trim(trim_top)
rows -= trim_top
if trim_bottom:
final_canvas.trim_end(trim_bottom)
rows -= trim_bottom
assert rows <= maxrow, "Listbox contents too long! Probably urwid's fault (please report): %r" % ((top,middle,bottom),)
if rows < maxrow:
bottom_pos = focus_pos
if fill_below: bottom_pos = fill_below[-1][1]
assert trim_bottom==0 and self.body.get_next(bottom_pos) == (None,None), "Listbox contents too short! Probably urwid's fault (please report): %r" % ((top,middle,bottom),)
final_canvas.pad_trim_top_bottom(0, maxrow - rows)
return final_canvas
def render(self, size, focus=False):
"""
Render listbox and return canvas.
"""
(maxcol, maxrow) = size
middle, top, bottom = self.calculate_visible((maxcol, maxrow),
focus=focus)
if middle is None:
return SolidCanvas(" ", maxcol, maxrow)
_ignore, focus_widget, focus_pos, focus_rows, cursor = middle
trim_top, fill_above = top
trim_bottom, fill_below = bottom
combinelist = []
rows = 0
fill_above.reverse() # fill_above is in bottom-up order
for widget, w_pos, w_rows in fill_above:
canvas = widget.render((maxcol, ))
if w_rows != canvas.rows():
raise ListBoxError, "Widget %r at position %r within listbox calculated %d rows but rendered %d!" % (
widget, w_pos, w_rows, canvas.rows())
rows += w_rows
combinelist.append((canvas, w_pos, False))
focus_canvas = focus_widget.render((maxcol, ), focus=focus)
if focus_canvas.rows() != focus_rows:
raise ListBoxError, "Focus Widget %r at position %r within listbox calculated %d rows but rendered %d!" % (
focus_widget, focus_pos, focus_rows, focus_canvas.rows())
c_cursor = focus_canvas.cursor
if cursor != c_cursor:
raise ListBoxError, "Focus Widget %r at position %r within listbox calculated cursor coords %r but rendered cursor coords %r!" % (
focus_widget, focus_pos, cursor, c_cursor)
rows += focus_rows
combinelist.append((focus_canvas, focus_pos, True))
for widget, w_pos, w_rows in fill_below:
canvas = widget.render((maxcol, ))
if w_rows != canvas.rows():
raise ListBoxError, "Widget %r at position %r within listbox calculated %d rows but rendered %d!" % (
widget, w_pos, w_rows, canvas.rows())
rows += w_rows
combinelist.append((canvas, w_pos, False))
final_canvas = CanvasCombine(combinelist)
if trim_top:
final_canvas.trim(trim_top)
rows -= trim_top
if trim_bottom:
final_canvas.trim_end(trim_bottom)
rows -= trim_bottom
assert rows <= maxrow, "Listbox contents too long! Probably urwid's fault (please report): %r" % (
(top, middle, bottom), )
if rows < maxrow:
bottom_pos = focus_pos
if fill_below: bottom_pos = fill_below[-1][1]
assert trim_bottom == 0 and self.body.get_next(bottom_pos) == (
None, None
), "Listbox contents too short! Probably urwid's fault (please report): %r" % (
(top, middle, bottom), )
final_canvas.pad_trim_top_bottom(0, maxrow - rows)
return final_canvas
