def render(self, size, focus=False):
fixed_size(size) # complain if parameter is wrong
a = None
ai = ak = 0
o = []
rows = self.font.height
attrib = self.attrib+[(None,len(self.text))]
for ch in self.text:
if not ak:
a, ak = attrib[ai]
ai += 1
ak -= 1
width = self.font.char_width(ch)
if not width:
# ignore invalid characters
continue
c = self.font.render(ch)
if a is not None:
c = CompositeCanvas(c)
c.fill_attr(a)
o.append((c, None, False, width))
if o:
canv = CanvasJoin(o)
else:
canv = TextCanvas([""]*rows, maxcol=0,
check_width=False)
canv = CompositeCanvas(canv)
canv.set_depends([])
return canv
def render(self, size, focus=False):
"""Render columns and return canvas.
size -- (maxcol,) if self.widget_list contains flow widgets or
(maxcol, maxrow) if it contains box widgets.
"""
widths = self.column_widths( size )
if not widths:
return SolidCanvas(" ", size[0], (size[1:]+(1,))[0])
box_maxrow = None
if len(size)==1 and self.box_columns:
box_maxrow = 1
# two-pass mode to determine maxrow for box columns
for i in range(len(widths)):
if i in self.box_columns:
continue
mc = widths[i]
w = self.widget_list[i]
rows = w.rows( (mc,),
focus = focus and self.focus_col == i )
box_maxrow = max(box_maxrow, rows)
l = []
for i in range(len(widths)):
mc = widths[i]
w = self.widget_list[i]
if box_maxrow and i in self.box_columns:
sub_size = (mc, box_maxrow)
else:
sub_size = (mc,) + size[1:]
canv = w.render(sub_size,
focus = focus and self.focus_col == i)
if i < len(widths)-1:
mc += self.dividechars
l.append((canv, i, self.focus_col == i, mc))
canv = CanvasJoin(l)
if canv.cols() < size[0]:
canv.pad_trim_left_right(0, size[0]-canv.cols())
return canv