Mercurial > MadButterfly

annotate src/mouse.c @ 1399:9cebe429508c

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Override the clone_from_subtree to setup the parent and children for the coord object. However, the current children is incorrect since we can not copy it from the origin tree. Instead, we need to get coord_t from the cloned group and then modify all coord objects to include correct parent, children, add_shape and clone_from_subtree.
author wycc
date Sun, 03 Apr 2011 11:51:39 +0800
parents 586e50f82c1f
children
rev   line source
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 #include "mb_types.h"
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4 #include "mb_redraw_man.h"
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5
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6 #define ASSERT(x)
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7
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8 static void mouse_event_interpreter(event_t *evt, void *arg) {
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9 mouse_event_t *mevt = (mouse_event_t *)evt;
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10 redraw_man_t *rdman = (redraw_man_t *)arg;
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11 mb_obj_t *obj;
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12 mouse_event_t new_evt;
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13 coord_t *coord;
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14 shape_t *shape;
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15
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16 ASSERT(evt->type == EVT_MOUSE_MOVE_RAW);
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17
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18 obj = (mb_obj_t *)subject_get_object(evt->cur_tgt);
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19 if(rdman->last_mouse_over == obj) {
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20 evt->type = EVT_MOUSE_MOVE;
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21 return;
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22 }
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23
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24 new_evt.x = mevt->x;
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25 new_evt.y = mevt->y;
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26 new_evt.but_state = mevt->but_state;
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27 new_evt.button = mevt->button;
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28
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29 if(rdman->last_mouse_over != NULL) {
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30 new_evt.event.type = EVT_MOUSE_OUT;
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31 if(IS_MBO_COORD(rdman->last_mouse_over)) {
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32 coord = (coord_t *)rdman->last_mouse_over;
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33 subject_notify(coord_get_mouse_event(coord), (event_t *)&new_evt);
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34 } else if(IS_MBO_SHAPES(rdman->last_mouse_over)) {
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35 shape = (shape_t *)rdman->last_mouse_over;
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36 ASSERT(shape->geo != NULL);
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37 subject_notify(sh_get_mouse_event_subject(shape),
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38 (event_t *)&new_evt);
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39 }
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40 }
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41
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42 new_evt.event.type = EVT_MOUSE_OVER;
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43 subject_notify(evt->cur_tgt, (event_t *)&new_evt);
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44 rdman->last_mouse_over = obj;
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45
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46 evt->flags |= EVTF_STOP_NOTIFY;
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47 }
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48
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49 /*! \brief This is event handler that observes addrm_monitor subject.
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50 *
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51 * addrm_monitor subject is a member of redraw manager objects.
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52 * Monitor of mouse event subjects of mb_obj_t objects are set to this
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53 * subject by redraw manager.
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54 *
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55 * addrm_monitor_hdlr() monitor adding and removing observers of mouse
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56 * event subjects, and install special observers to these subjects to handle
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57 * and interpret mouse events (EVT_MOUSE_MOVE_RAW).
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58 */
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59 void addrm_monitor_hdlr(event_t *evt, void *arg) {
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60 monitor_event_t *mevt;
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61 redraw_man_t *rdman;
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62 mb_obj_t *obj;
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63 mb_prop_store_t *props;
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64 observer_t *observer;
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65 int cnt = 0;
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66
231
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67 mevt = (monitor_event_t *)evt;
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68 rdman = (redraw_man_t *)arg;
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69 obj = (mb_obj_t *)subject_get_object(mevt->subject);
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70 props = mb_obj_prop_store(obj);
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71
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72 switch(evt->type) {
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73 case EVT_MONITOR_ADD:
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74 if(!mb_prop_has(props, PROP_MEVT_OB_CNT))
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75 cnt = 0;
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76 else
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77 cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT);
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78
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79 cnt++;
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80 mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt);
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81 if(cnt == 1) {
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82 observer =
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83 subject_add_event_observer_head(mevt->subject,
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84 EVT_MOUSE_MOVE_RAW,
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85 mouse_event_interpreter,
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86 rdman);
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87 ASSERT(observer != NULL);
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88 mb_prop_set(props, PROP_MEVT_OBSERVER, observer);
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89 }
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90 break;
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91
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92 case EVT_MONITOR_REMOVE:
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93 cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT);
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94 cnt--;
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95 mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt);
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96 if(cnt == 1) {
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97 observer = (observer_t *)mb_prop_get(props, PROP_MEVT_OBSERVER);
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98 subject_remove_observer(mevt->subject, observer);
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99 mb_prop_del(props, PROP_MEVT_OBSERVER);
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100 }
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101 break;
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102
231
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103 case EVT_MONITOR_FREE:
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104 break;
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105 }
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106 }
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107