Mercurial > MadButterfly
view src/mouse.c @ 1223:ec964cf4c993
merge
author | Thinker K.F. Li <thinker@codemud.net> |
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date | Thu, 06 Jan 2011 09:39:47 +0800 |
parents | 586e50f82c1f |
children |
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// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*- // vim: sw=4:ts=8:sts=4 #include "mb_types.h" #include "mb_redraw_man.h" #define ASSERT(x) static void mouse_event_interpreter(event_t *evt, void *arg) { mouse_event_t *mevt = (mouse_event_t *)evt; redraw_man_t *rdman = (redraw_man_t *)arg; mb_obj_t *obj; mouse_event_t new_evt; coord_t *coord; shape_t *shape; ASSERT(evt->type == EVT_MOUSE_MOVE_RAW); obj = (mb_obj_t *)subject_get_object(evt->cur_tgt); if(rdman->last_mouse_over == obj) { evt->type = EVT_MOUSE_MOVE; return; } new_evt.x = mevt->x; new_evt.y = mevt->y; new_evt.but_state = mevt->but_state; new_evt.button = mevt->button; if(rdman->last_mouse_over != NULL) { new_evt.event.type = EVT_MOUSE_OUT; if(IS_MBO_COORD(rdman->last_mouse_over)) { coord = (coord_t *)rdman->last_mouse_over; subject_notify(coord_get_mouse_event(coord), (event_t *)&new_evt); } else if(IS_MBO_SHAPES(rdman->last_mouse_over)) { shape = (shape_t *)rdman->last_mouse_over; ASSERT(shape->geo != NULL); subject_notify(sh_get_mouse_event_subject(shape), (event_t *)&new_evt); } } new_evt.event.type = EVT_MOUSE_OVER; subject_notify(evt->cur_tgt, (event_t *)&new_evt); rdman->last_mouse_over = obj; evt->flags |= EVTF_STOP_NOTIFY; } /*! \brief This is event handler that observes addrm_monitor subject. * * addrm_monitor subject is a member of redraw manager objects. * Monitor of mouse event subjects of mb_obj_t objects are set to this * subject by redraw manager. * * addrm_monitor_hdlr() monitor adding and removing observers of mouse * event subjects, and install special observers to these subjects to handle * and interpret mouse events (EVT_MOUSE_MOVE_RAW). */ void addrm_monitor_hdlr(event_t *evt, void *arg) { monitor_event_t *mevt; redraw_man_t *rdman; mb_obj_t *obj; mb_prop_store_t *props; observer_t *observer; int cnt = 0; mevt = (monitor_event_t *)evt; rdman = (redraw_man_t *)arg; obj = (mb_obj_t *)subject_get_object(mevt->subject); props = mb_obj_prop_store(obj); switch(evt->type) { case EVT_MONITOR_ADD: if(!mb_prop_has(props, PROP_MEVT_OB_CNT)) cnt = 0; else cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT); cnt++; mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt); if(cnt == 1) { observer = subject_add_event_observer_head(mevt->subject, EVT_MOUSE_MOVE_RAW, mouse_event_interpreter, rdman); ASSERT(observer != NULL); mb_prop_set(props, PROP_MEVT_OBSERVER, observer); } break; case EVT_MONITOR_REMOVE: cnt = (int)mb_prop_get(props, PROP_MEVT_OB_CNT); cnt--; mb_prop_set(props, PROP_MEVT_OB_CNT, (void *)cnt); if(cnt == 1) { observer = (observer_t *)mb_prop_get(props, PROP_MEVT_OBSERVER); subject_remove_observer(mevt->subject, observer); mb_prop_del(props, PROP_MEVT_OBSERVER); } break; case EVT_MONITOR_FREE: break; } }