1 /* Copyright (c) 2012, Bastien Dejean
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 double distance(xcb_point_t a, xcb_point_t b)
30 return hypot(a.x - b.x, a.y - b.y);
33 bool is_inside(xcb_point_t p, xcb_rectangle_t r)
35 return (p.x >= r.x && p.x < (r.x + r.width) &&
36 p.y >= r.y && p.y < (r.y + r.height));
39 unsigned int area(xcb_rectangle_t r)
41 return r.width * r.height;
44 bool rect_eq(xcb_rectangle_t a, xcb_rectangle_t b)
46 return (a.x == b.x && a.y == b.y &&
47 a.width == b.width && a.height == b.height);
50 int rect_cmp(xcb_rectangle_t r1, xcb_rectangle_t r2)
52 if (r1.y >= (r2.y + r2.height)) {
54 } else if (r2.y >= (r1.y + r1.height)) {
57 if (r1.x >= (r2.x + r2.width)) {
59 } else if (r2.x >= (r1.x + r1.width)) {
62 return area(r1) - area(r2);