annotate examples/svg2code_ex/main.c @ 1487:3aba29609607

Rename state modes
author Thinker K.F. Li <thinker@codemud.net>
date Sat, 30 Apr 2011 11:18:44 +0800
parents 71489039406b
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1 /*! \file
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2 *
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3 * svg2code_ex is an example that show programmers how to create a
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4 * menu with MadButterfly.
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5 *
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6 */
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7 #include <stdio.h>
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8 #include <mb.h>
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9 #include "svg2code_ex.h"
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10
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11 typedef struct _ex_rt ex_rt_t;
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12 struct _ex_rt {
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13 mb_rt_t *rt;
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14 svg2code_ex_t *code;
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15 };
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16
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17 #define COORD_SHOW(group) do { \
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18 coord_show(group); \
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19 rdman_coord_changed(mb_runtime_rdman(ex_rt->rt), group); \
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20 } while(0)
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21 #define COORD_HIDE(group) do { \
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22 coord_hide(group); \
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23 rdman_coord_changed(mb_runtime_rdman(ex_rt->rt), group); \
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24 } while(0)
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25
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26 static void file_button_handler(event_t *evt, void *arg) {
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27 ex_rt_t *ex_rt = (ex_rt_t *)arg;
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28 redraw_man_t *rdman;
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30 COORD_SHOW(ex_rt->code->file_menu);
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31 rdman = mb_runtime_rdman(ex_rt->rt);
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32 /* Update changed part to UI. */
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33 rdman_redraw_changed(rdman);
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34 }
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35
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36 static void file_menu_handler(event_t *evt, void *arg) {
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37 ex_rt_t *ex_rt = (ex_rt_t *)arg;
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38 redraw_man_t *rdman;
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39
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40 COORD_HIDE(ex_rt->code->file_menu);
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41 rdman = mb_runtime_rdman(ex_rt->rt);
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42 /* Update changed part to UI. */
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43 rdman_redraw_changed(rdman);
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44 }
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45
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46 int main(int argc, char * const argv[]) {
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47 mb_rt_t *rt;
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48 redraw_man_t *rdman;
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49 svg2code_ex_t *svg2code;
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50 subject_t *subject;
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51 ex_rt_t ex_rt;
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52
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53 /*
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54 * Initialize a runtime with XLib as backend.
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55 */
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56 rt = mb_runtime_new(":0.0", 800, 600);
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58 /*
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59 * Instantiate objects from a SVG file.
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60 */
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61 rdman = mb_runtime_rdman(rt);
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62 svg2code = svg2code_ex_new(rdman, rdman->root_coord);
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64 /*
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65 * Register observers to subjects of events for objects.
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66 */
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67 subject = coord_get_mouse_event(svg2code->file_button);
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68 ex_rt.rt = rt;
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69 ex_rt.code = svg2code;
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70 subject_add_event_observer(subject, EVT_MOUSE_BUT_PRESS, file_button_handler, &ex_rt);
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71 subject = coord_get_mouse_event(svg2code->file_menu);
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72 subject_add_event_observer(subject, EVT_MOUSE_BUT_PRESS, file_menu_handler, &ex_rt);
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74 /*
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75 * Start handle connections, includes one to X server.
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76 * User start to interact with the application.
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77 */
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78 mb_runtime_event_loop(rt);
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80 /*
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81 * Clean
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82 */
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83 svg2code_ex_free(svg2code);
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84 mb_runtime_free(rt);
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86 return 0;
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87 }