79 lines
3.2 KiB
Python
79 lines
3.2 KiB
Python
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# Copyright (c) 2013 ARM Limited
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# All rights reserved
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Andrew Bardsley
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class Point(object):
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"""2D point coordinates/size type"""
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def __init__(self, x, y):
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self.x = x
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self.y = y
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def __add__(self, rhs):
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return Point(self.x + rhs.x, self.y + rhs.y)
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def __sub__(self, rhs):
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return Point(self.x - rhs.x, self.y - rhs.y)
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def __mul__(self, rhs):
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return Point(self.x * rhs.x, self.y * rhs.y)
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def __div__(self, rhs):
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return Point(float(self.x) / rhs.x, float(self.y) / rhs.y)
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def scale(self, factor):
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return Point(self.x * factor, self.y * factor)
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def to_pair(self):
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return (self.x, self.y)
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def __str__(self):
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return "Point(%f,%f)" % (self.x, self.y)
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def __repr__(self):
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return "Point(%f,%f)" % (self.x, self.y)
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def is_within_box(self, box):
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"""Is this point inside the (centre, size) box box"""
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centre, size = box
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half_size = size.scale(0.5)
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top_left = centre - half_size
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bottom_right = centre + half_size
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return (top_left.x < self.x and
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top_left.y < self.y and
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bottom_right.x > self.x and
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bottom_right.y > self.y)
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