nanogui: set a timer when move the window!
Subject:
set a timer when move the window!
From:
"wang" ####@####.####
Date:
19 Aug 2002 06:44:04 -0000
Message-Id:
In nanowm, dragging window is not efficient,in former
maillist ,Alex suggested use a timer to reduce the
number of GrMoveWindow().now I implement this ,yes,it's
agiler than it did,and even I set the timer to 1ms ,
it should be better.
This is what I have done:
1.At the very time we press button down on caption,
the widow become active ,we create a timer use GrCreatetimer(),
in Wm_container_buttondown():
window->active = GR_TRUE;
wm_timer=GrCreateTimer(window->wid,1,1);
wm_tiemr is a globe variable ,so GrDetroyTimer() can use.
2.And when button up ,the window become inactive ,
use GrDetroyTimer() to destroy the timer.
3.In fuction Wm_container_mousemoved() we do not
call GrMoveWindow() ,every time we just store the
parameter of GrMoveWindow() in a structure wm_move:
#else
wm_move.wid=window->wid;
wm_move.x=event->rootx - pos->xoff;
wm_move.y=event->rooty - pos->yoff;
#endif
wm_move is defined like this :
typedef struct {
GR_WINDOW_ID wid;
GR_COORD x;
GR_COORD y;
} Wm_move;
Wm_move wm_move;(in nanowm.h)
4.Use GrSelectEvent() select EVENT_TYPE_MASK_TIMER,
every time when we receive EVENT_TYPE_TIEMR event,we
do like this:
case GR_EVENT_TYPE_TIMER:
GrMoveWindow(wm_move.wid,wm_move.x,wm_move.y);
break;
Any commments are welcome.
wang
####@####.####
2002-08-19
