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annotate examples/svg2code_ex/main.c @ 1381:9a585df24e52

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Consider the width and height attribute for the rect elements. The inkscape will change the width and height directly without using transform when we resize the rectangle.
author wycc
date Wed, 23 Mar 2011 23:02:36 +0800
parents 71489039406b
children
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.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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29
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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 }