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annotate examples/svg2code_ex/main.c @ 130:3a4d6179e6a9

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change mb_c_source.m4 and mb_c_header.m4 to specify parent for SVG object
author Thinker K.F. Li <thinker@branda.to>
date Tue, 16 Sep 2008 21:23:34 +0800
parents 17e97e92b76e
children 530bb7728546
rev   line source
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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/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 X_MB_runtime_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 static void file_button_handler(event_t *evt, void *arg) {
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18 ex_rt_t *ex_rt = (ex_rt_t *)arg;
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19
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20 switch(evt->type) {
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21 case EVT_MOUSE_BUT_PRESS:
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22 coord_show(ex_rt->code->file_menu);
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23 /* Tell redraw manager that a coord (group) is chagned. */
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24 rdman_coord_changed(X_MB_rdman(ex_rt->rt), ex_rt->code->file_menu);
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25 /* Update changed part to UI. */
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26 rdman_redraw_changed(X_MB_rdman(ex_rt->rt));
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27 break;
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28 }
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29 }
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30
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31 static void file_menu_handler(event_t *evt, void *arg) {
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32 ex_rt_t *ex_rt = (ex_rt_t *)arg;
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33 redraw_man_t *rdman;
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34
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35 rdman = X_MB_rdman(ex_rt->rt);
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36 switch(evt->type) {
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37 case EVT_MOUSE_BUT_PRESS:
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38 coord_hide(ex_rt->code->file_menu);
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39 /* Tell redraw manager that a coord (group) is chagned. */
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40 rdman_coord_changed(rdman, ex_rt->code->file_menu);
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41 /* Update changed part to UI. */
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42 rdman_redraw_changed(rdman);
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43 break;
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44 }
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45 }
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46
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47 int main(int argc, char * const argv[]) {
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48 X_MB_runtime_t *rt;
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49 redraw_man_t *rdman;
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50 svg2code_ex_t *svg2code;
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51 ob_factory_t *factory;
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52 subject_t *subject;
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53 ex_rt_t ex_rt;
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54
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55 /*
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56 * Initialize a runtime with XLib as backend.
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57 */
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58 rt = X_MB_new(":0.0", 800, 600);
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60 /*
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61 * Instantiate objects from a SVG file.
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62 */
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63 rdman = X_MB_rdman(rt);
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64 svg2code = svg2code_ex_new(rdman, rdman->root_coord);
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65
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66 /*
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67 * Get observer factory
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68 */
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69 factory = rdman_get_ob_factory(rdman);
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70 /*
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71 * Register observers to subjects of events for objects.
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72 */
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73 subject = coord_get_mouse_event(svg2code->file_button);
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74 ex_rt.rt = rt;
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75 ex_rt.code = svg2code;
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76 subject_add_observer(factory, subject, file_button_handler, &ex_rt);
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77 subject = coord_get_mouse_event(svg2code->file_menu);
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78 subject_add_observer(factory, subject, file_menu_handler, &ex_rt);
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80 /*
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81 * Start handle connections, includes one to X server.
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82 * User start to interact with the application.
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83 */
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84 X_MB_handle_connection(rt);
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86 /*
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87 * Clean
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88 */
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89 svg2code_ex_free(svg2code);
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90 X_MB_free(rt);
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92 return 0;
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93 }