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annotate libui/ui/label.c @ 165:eb3148c1e54d

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core: add state functions
author David Demelier <markand@malikania.fr>
date Mon, 19 Oct 2020 08:10:21 +0200
parents 31d7f23c0588
children 6992085d47fd
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1 /*
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2 * label.c -- GUI label
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3 *
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4 * Copyright (c) 2020 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 <assert.h>
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20 #include <string.h>
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21
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22 #include <core/action.h>
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23 #include <core/font.h>
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24 #include <core/panic.h>
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25 #include <core/texture.h>
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26
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27 #include "label.h"
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28 #include "theme.h"
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29
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30 static void
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31 draw(struct action *act)
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32 {
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33 label_draw(act->data);
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34 }
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35
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36 void
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37 label_draw_default(struct theme *t, const struct label *label)
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38 {
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39 assert(t);
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40 assert(label);
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41
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42 struct font *font;
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43 struct texture tex;
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44
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45 font = t->fonts[THEME_FONT_INTERFACE];
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46
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47 /* Shadow text, only if enabled. */
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48 if (label->flags & LABEL_FLAGS_SHADOW) {
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49 font->color = t->colors[THEME_COLOR_SHADOW];
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50
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51 if (!font_render(font, &tex, label->text))
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52 panic();
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53
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54 texture_draw(&tex, label->x + 1, label->y + 1);
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55 texture_finish(&tex);
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56 }
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57
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58 /* Normal text. */
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59 font->color = t->colors[THEME_COLOR_NORMAL];
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60
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61 if (!font_render(font, &tex, label->text))
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62 panic();
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63
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64 texture_draw(&tex, label->x, label->y);
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65 texture_finish(&tex);
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66 }
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67
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68 void
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69 label_query(struct label *label, unsigned int *w, unsigned int *h)
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70 {
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71 assert(label);
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72 assert(label->text);
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73
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74 struct theme *t = label->theme ? label->theme : theme_default();
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75
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76 if (!font_query(t->fonts[THEME_FONT_INTERFACE], label->text, w, h))
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77 panic();
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78 }
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79
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80 void
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81 label_draw(const struct label *label)
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82 {
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83 assert(label);
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84 assert(label->text);
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85
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86 theme_draw_label(label->theme, label);
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87 }
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88
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89 void
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90 label_action(struct label *label, struct action *act)
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91 {
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92 assert(label);
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93 assert(act);
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94
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95 memset(act, 0, sizeof (*act));
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96 act->data = label;
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97 act->draw = draw;
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98 }