Mercurial > MadButterfly

annotate src/mouse.c @ 263:755bbf274259

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Manage dsc_3241.png in svg2code_ex/Makefile.am.
author Thinker K.F. Li <thinker@branda.to>
date Fri, 23 Jan 2009 23:21:27 +0800
parents 65cabbdd5284
children 1ca96c158125
rev   line source
231
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
Thinker K.F. Li <thinker@branda.to>
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1 #include "mb_types.h"
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
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2 #include "mb_redraw_man.h"
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3
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4 #define ASSERT(x)
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5
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6 static void mouse_event_interpreter(event_t *evt, void *arg) {
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7 mouse_event_t *mevt = (mouse_event_t *)evt;
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
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8 redraw_man_t *rdman = (redraw_man_t *)arg;
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9 mb_obj_t *obj;
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10 mouse_event_t new_evt;
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11 coord_t *coord;
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12 shape_t *shape;
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13
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
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14 ASSERT(evt->type == EVT_MOUSE_MOVE_RAW);
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15
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16 obj = (mb_obj_t *)subject_get_object(evt->cur_tgt);
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
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17 if(rdman->last_mouse_over == obj) {
2637519e2bd7 Move mouse event handler and interpreter to src/mouse.c.
Thinker K.F. Li <thinker@branda.to>
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18 evt->type = EVT_MOUSE_MOVE;
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19 return;
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20 }
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21
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22 new_evt.x = mevt->x;
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23 new_evt.y = mevt->y;
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24 new_evt.but_state = mevt->but_state;
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25 new_evt.button = mevt->button;
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26
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27 if(rdman->last_mouse_over != NULL) {
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28 new_evt.event.type = EVT_MOUSE_OUT;
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29 if(IS_MBO_COORD(rdman->last_mouse_over)) {
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30 coord = (coord_t *)rdman->last_mouse_over;
235
65cabbdd5284 termporary revision
Thinker K.F. Li <thinker@branda.to>
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31 subject_notify(coord_get_mouse_event(coord), (event_t *)&new_evt);
231
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32 } else if(IS_MBO_SHAPES(rdman->last_mouse_over)) {
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33 shape = (shape_t *)rdman->last_mouse_over;
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34 ASSERT(shape->geo != NULL);
235
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35 subject_notify(sh_get_mouse_event_subject(shape),
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36 (event_t *)&new_evt);
231
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37 }
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38 }
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39
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40 new_evt.event.type = EVT_MOUSE_OVER;
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41 subject_notify(evt->cur_tgt, (event_t *)&new_evt);
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42 rdman->last_mouse_over = obj;
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43
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44 evt->flags |= EVTF_STOP_NOTIFY;
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45 }
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46
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47 /*! \brief This is event handler that observes addrm_monitor subject.
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48 *
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49 * addrm_monitor subject is a member of redraw manager objects.
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50 * Monitor of mouse event subjects of mb_obj_t objects are set to this
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51 * subject by redraw manager.
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52 *
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53 * addrm_monitor_hdlr() monitor adding and removing observers of mouse
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54 * event subjects, and install special observers to these subjects to handle
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55 * and interpret mouse events (EVT_MOUSE_MOVE_RAW).
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56 */
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57 void addrm_monitor_hdlr(event_t *evt, void *arg) {
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58 monitor_event_t *mevt;
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59 redraw_man_t *rdman;
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60 mb_obj_t *obj;
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61 mb_prop_store_t *props;
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62 observer_t *observer;
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63 int cnt = 0;
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64
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65 mevt = (monitor_event_t *)evt;
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66 rdman = (redraw_man_t *)evt->tgt;
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67 obj = (mb_obj_t *)subject_get_object(mevt->subject);
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68 props = mb_obj_prop_store(obj);
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69
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70 switch(evt->type) {
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71 case EVT_MONITOR_ADD:
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72 if(!mb_prop_has(props, PROP_MEVT_OB_CNT))
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73 cnt = 0;
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74 else
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75 cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT);
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76
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77 cnt++;
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78 mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt);
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79 if(cnt == 1) {
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80 observer =
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81 subject_add_event_observer_head(mevt->subject,
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82 EVT_MOUSE_MOVE_RAW,
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83 mouse_event_interpreter,
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84 rdman);
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85 ASSERT(observer != NULL);
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86 mb_prop_set(props, PROP_MEVT_OBSERVER, observer);
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87 }
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88 break;
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89
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90 case EVT_MONITOR_REMOVE:
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91 cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT);
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92 cnt--;
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93 mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt);
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94 if(cnt == 1) {
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95 observer = (observer_t *)mb_prop_get(props, PROP_MEVT_OBSERVER);
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96 subject_remove_observer(mevt->subject, observer);
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97 mb_prop_del(props, PROP_MEVT_OBSERVER);
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98 }
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99 break;
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100
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101 case EVT_MONITOR_FREE:
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102 break;
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103 }
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104 }
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105