Mercurial > MadButterfly

annotate src/mouse.c @ 839:a3be0162bf44

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Move decision of dirty pcache_area to one place. Move all decision logic to add_rdman_coords_pcache_area().
author Thinker K.F. Li <thinker@codemud.net>
date Fri, 17 Sep 2010 12:21:36 +0800
parents 586e50f82c1f
children
rev   line source
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586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 315
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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
231
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Thinker K.F. Li <thinker@branda.to>
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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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parents: 315
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23
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Thinker K.F. Li <thinker@branda.to>
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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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parents: 315
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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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parents: 315
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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
231
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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