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annotate libmlk-ui/mlk/ui/align.c @ 646:7e1eb7f6c049 default tip @

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misc: remove .clang
author David Demelier <markand@malikania.fr>
date Sun, 04 Feb 2024 15:24:37 +0100
parents 20e9fd578b44
children
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1 /*
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2 * align.c -- user interface alignment helpers
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3 *
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4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include "align.h"
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20
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21 #define SET(p, v) if (p) *p = v
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22 #define CENTER(p, c, rs, es) if (p) (*p) = c + (rs / 2) - (es / 2)
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23
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24 void
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25 mlk_align(enum mlk_align align,
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26 int *x,
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27 int *y,
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28 unsigned int w,
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29 unsigned int h,
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30 int px,
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31 int py,
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32 unsigned int pw,
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33 unsigned int ph)
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34 {
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35 switch (align) {
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36 case MLK_ALIGN_CENTER:
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37 CENTER(x, px, pw, w);
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38 CENTER(y, py, ph, h);
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39 break;
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40 case MLK_ALIGN_TOP_LEFT:
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41 SET(x, px);
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42 SET(y, py);
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43 break;
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44 case MLK_ALIGN_TOP:
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45 CENTER(x, px, pw, w);
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46 SET(y, py);
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47 break;
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48 case MLK_ALIGN_TOP_RIGHT:
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49 SET(x, px + pw - w);
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50 SET(y, py);
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51 break;
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52 case MLK_ALIGN_RIGHT:
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53 SET(x, px + pw - w);
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54 CENTER(y, py, ph, h);
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55 break;
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56 case MLK_ALIGN_BOTTOM_RIGHT:
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57 SET(x, px + pw - w);
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58 SET(y, py + ph - h);
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59 break;
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60 case MLK_ALIGN_BOTTOM:
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61 CENTER(x, px, pw, w);
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62 SET(y, py + ph - h);
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63 break;
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64 case MLK_ALIGN_BOTTOM_LEFT:
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65 SET(x, px);
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66 SET(y, py + ph - h);
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67 break;
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68 case MLK_ALIGN_LEFT:
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69 CENTER(y, py, ph, h);
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70 SET(x, px);
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71 break;
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72 default:
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73 SET(x, px);
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74 SET(y, py);
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75 break;
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76 }
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77 }