def output_to(self, row, column):
"""Redirects output to the corresponding cell of this grid.
Args:
row: 0 based row
column: 0 based column
Yields:
nothing
"""
if row < 0 or column < 0 or row >= self.rows or column >= self.columns:
raise _widget.WidgetException(
'Cell (%d, %d) is outside of boundaries of %dx%d grid' %
(row, column, self.rows, self.columns))
component_id = self._get_cell_id(row, column)
with self._active_component(component_id):
yield
def _populate(self, row_data, col_data, render, header_render=None):
"""Populate the grid with a cross product of row and cols."""
def display_one_cell(render_func, *args):
result = render_func(*args)
if result is not None:
display.display(result)
header_render = header_render or display.display
rows = list(row_data)
cols = list(col_data)
row_offset = 1 if self.header_row else 0
col_offset = 1 if self.header_column else 0
if (row_offset + len(rows) > self.rows or
col_offset + len(cols) > self.columns):
raise _widget.WidgetException('Can not fit %dx%d data into %dx%d grid. ' %
(len(rows), len(cols), self.rows,
self.columns))
for row, col in iter(self):
row -= row_offset
col -= col_offset
if row >= len(rows):
continue
if col >= len(cols):
continue
if row < 0 and col < 0:
continue
if row < 0:
display_one_cell(header_render, cols[col])
continue
if col < 0:
display_one_cell(header_render, rows[row])
continue
display_one_cell(render, rows[row], cols[col])
return self