def get_square_view(self, center, distance):
"""
Attempt to return a view of a square centered on center.
This might return a non-square rectangle
if the center is near an edge.
"""
(center_x, center_y) = center
(x1, x2) = self._adjust_coords(center_x, distance, self.width)
(y1, y2) = self._adjust_coords(center_y, distance, self.height)
return ga.GridView(self, x1, y1, x2, y2)
def get_row_view(self, row, left=None, right=None):
"""
Return a view of a single row
It will be the whole row from the grid,
unless left or right are passed.
"""
if left is None:
left = 0
if right is None:
right = self.width
return ga.GridView(self, left, row, right, row + 1)
def get_col_view(self, col, low=None, high=None):
"""
Return a view of a single column.
It will be the whole column from the grid,
unless low or high are passed.
"""
if low is None:
low = 0
if high is None:
high = self.height
return ga.GridView(self, col, low, col + 1, high)