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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_WAIT_EVENT
#endif
/*
STATUS Xw_wait_event (awindow)
XW_EXT_WINDOW *awindow
Wait any event activated by Xw_set_event in any Window
and CALL the associated call_back routine if defined
NOTE than if call_back returns ERROR this go outside the WAIT
event loop .
Returns ERROR always
*/
static XW_CALLBACK ecbk ;
static XW_ICALLBACK icbk ;
static char keystring[32] ;
static KeySym modifier = 0 ;
static XW_EVENT xwevent ;
static Window LastEventWindow = 0 ;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_wait_event (void* awindow)
#else
XW_STATUS Xw_wait_event (awindow)
void *awindow ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
XEvent xevent ;
XW_STATUS status = XW_SUCCESS ;
XW_USERDATA *userdata ;
int lstring,xbutton=0,ybutton=0,bbutton = 0,mbutton = False ;
KeySym keysym ;
XComposeStatus key_status ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_wait_event",pwindow) ;
return (XW_ERROR) ;
}
while ( status == XW_SUCCESS ) {
XNextEvent(_DISPLAY,&xevent) ;
xwevent.any.type = XW_ALLEVENT ;
if( LastEventWindow != xevent.xany.window ) {
LastEventWindow = xevent.xany.window ;
xwevent.any.awindow = pwindow =
Xw_get_window_structure(LastEventWindow) ;
}
#ifdef TRACE_WAIT_EVENT
if( Xw_get_trace() > 3 ) {
printf (" Xw_event(%lx,%d)\n",(long ) pwindow,xevent.type) ;
}
#endif
if( pwindow ) {
switch (xevent.type) {
case KeyPress :
lstring = XLookupString( &xevent.xkey,
keystring, sizeof(keystring), &keysym , &key_status ) ;
if( lstring ) {
xwevent.any.type = XW_KEYBOARD ;
xwevent.keyboard.modifier = modifier ;
xwevent.keyboard.keycode = 0 ;
xwevent.keyboard.state = True ;
xwevent.keyboard.string = &keystring[0] ;
xwevent.keyboard.x = xevent.xkey.x ;
xwevent.keyboard.y = xevent.xkey.y ;
} else {
if( IsModifierKey(keysym) ) {
modifier = keysym ;
} else {
xwevent.any.type = XW_KEYBOARD ;
xwevent.keyboard.modifier = modifier ;
xwevent.keyboard.keycode = keysym ;
xwevent.keyboard.state = True ;
xwevent.keyboard.string = NULL ;
xwevent.keyboard.x = xevent.xkey.x ;
xwevent.keyboard.y = xevent.xkey.y ;
}
}
break ;
case KeyRelease :
lstring = XLookupString( &xevent.xkey,
keystring, sizeof(keystring), &keysym , &key_status ) ;
if( IsModifierKey(keysym) ) {
modifier = 0 ;
}
break ;
case ButtonPress :
bbutton = xevent.xbutton.button ;
xbutton = xevent.xbutton.x ;
ybutton = xevent.xbutton.y ;
mbutton = False ;
if( xevent.xbutton.button == 1 )
xwevent.any.type = XW_MOUSEBUTTON1 ;
else if( xevent.xbutton.button == 2 )
xwevent.any.type = XW_MOUSEBUTTON2 ;
else if( xevent.xbutton.button == 3 )
xwevent.any.type = XW_MOUSEBUTTON3 ;
xwevent.mousebutton.button = bbutton ;
xwevent.mousebutton.state = True ;
xwevent.mousebutton.modifier = modifier ;
xwevent.mousebutton.x = xbutton ;
xwevent.mousebutton.y = ybutton ;
break ;
case ButtonRelease :
if( mbutton ) {
if( xevent.xbutton.button == 1 )
xwevent.any.type = XW_MOUSEBUTTON1 ;
else if( xevent.xbutton.button == 2 )
xwevent.any.type = XW_MOUSEBUTTON2 ;
else if( xevent.xbutton.button == 3 )
xwevent.any.type = XW_MOUSEBUTTON3 ;
xwevent.mousebutton.button = bbutton ;
xwevent.mousebutton.state = False ;
xwevent.mousebutton.modifier = modifier ;
xwevent.mousebutton.x = xevent.xbutton.x ;
xwevent.mousebutton.y = xevent.xbutton.y ;
}
bbutton = 0 ;
mbutton = False ;
break ;
case MotionNotify :
if( bbutton ) {
int dx,dy ;
while( XCheckTypedWindowEvent(_DISPLAY,LastEventWindow,
MotionNotify,&xevent) ) ;
if( !mbutton ) {
dx = xevent.xmotion.x - xbutton ;
dy = xevent.xmotion.y - ybutton ;
if( (abs(dx) + abs(dy)) > 6 ) {
mbutton = True ;
}
}
if( mbutton ) {
if( bbutton == 1 )
xwevent.any.type = XW_MOUSEMOVEWITHBUTTON1 ;
else if( bbutton == 2 )
xwevent.any.type = XW_MOUSEMOVEWITHBUTTON2 ;
else if( bbutton == 3 )
xwevent.any.type = XW_MOUSEMOVEWITHBUTTON3 ;
xwevent.mousemovewithbutton.button = bbutton ;
xwevent.mousemovewithbutton.state = True ;
xwevent.mousemovewithbutton.modifier = modifier ;
xwevent.mousemovewithbutton.x = xevent.xmotion.x;
xwevent.mousemovewithbutton.y = xevent.xmotion.y;
}
} else {
while( XCheckTypedWindowEvent(_DISPLAY,LastEventWindow,
MotionNotify,&xevent) ) ;
xwevent.any.type = XW_MOUSEMOVE ;
xwevent.mousemove.modifier = modifier ;
xwevent.mousemove.x = xevent.xmotion.x ;
xwevent.mousemove.y = xevent.xmotion.y ;
}
break ;
case EnterNotify :
xwevent.any.type = XW_ENTERWINDOW ;
break ;
case Expose :
if( !xevent.xexpose.count ) {
int x1 = xevent.xexpose.x ;
int y1 = xevent.xexpose.y ;
int x2 = x1 + xevent.xexpose.width ;
int y2 = y1 + xevent.xexpose.height ;
xwevent.any.type = XW_EXPOSEWINDOW ;
xwevent.windowexpose.xc = (x1+x2)/2 ;
xwevent.windowexpose.yc = (y1+y2)/2 ;
xwevent.windowexpose.width = (x2-x1) ;
xwevent.windowexpose.height = (y2-y1) ;
while( XCheckWindowEvent(_DISPLAY,LastEventWindow,
ExposureMask,&xevent) ) {
if( !xevent.xexpose.count ) {
int nx1 = xevent.xexpose.x ;
int ny1 = xevent.xexpose.y ;
int nx2 = nx1 + xevent.xexpose.width ;
int ny2 = ny1 + xevent.xexpose.height ;
x1 = min(x1,nx1) ; y1 = min(y1,ny1) ;
x2 = max(x2,nx2) ; y2 = max(y2,ny2) ;
xwevent.windowexpose.xc = (x1+x2)/2 ;
xwevent.windowexpose.yc = (y1+y2)/2 ;
xwevent.windowexpose.width = (x2-x1) ;
xwevent.windowexpose.height = (y2-y1) ;
}
}
}
break ;
case ConfigureNotify :
{
int xc = _X + _WIDTH/2 ;
int yc = _Y + _HEIGHT/2 ;
int width = _WIDTH ;
int height = _HEIGHT ;
pwindow->rwidth = xevent.xconfigure.width ;
pwindow->rheight = xevent.xconfigure.height ;
Xw_get_window_position(pwindow,
&xwevent.windowresize.xc,
&xwevent.windowresize.yc,
&xwevent.windowresize.width,
&xwevent.windowresize.height) ;
if( (width != xwevent.windowresize.width) ||
(height != xwevent.windowresize.height) )
xwevent.any.type = XW_RESIZEWINDOW ;
else if( (xc != xwevent.windowresize.xc) ||
(yc != xwevent.windowresize.yc) )
xwevent.any.type = XW_MOVEWINDOW ;
}
break ;
case ResizeRequest :
{
int xc = _X + _WIDTH/2 ;
int yc = _Y + _HEIGHT/2 ;
int width = _WIDTH ;
int height = _HEIGHT ;
pwindow->rwidth = xevent.xresizerequest.width ;
pwindow->rheight = xevent.xresizerequest.height ;
Xw_get_window_position(pwindow,
&xwevent.windowresize.xc,
&xwevent.windowresize.yc,
&xwevent.windowresize.width,
&xwevent.windowresize.height) ;
if( (width != xwevent.windowresize.width) ||
(height != xwevent.windowresize.height) )
xwevent.any.type = XW_RESIZEWINDOW ;
else if( (xc != xwevent.windowresize.xc) ||
(yc != xwevent.windowresize.yc) )
xwevent.any.type = XW_MOVEWINDOW ;
}
break ;
case UnmapNotify :
xwevent.any.type = XW_ICONIFYWINDOW ;
break ;
case MapNotify :
case ReparentNotify :
case NoExpose :
case ClientMessage :
case GraphicsExpose :
case DestroyNotify :
case CreateNotify :
break ;
case LeaveNotify :
case FocusIn :
case FocusOut :
case KeymapNotify :
case ConfigureRequest :
case GravityNotify :
case CirculateNotify :
case CirculateRequest :
case PropertyNotify :
case SelectionClear :
case SelectionRequest :
case SelectionNotify :
case ColormapNotify :
case MappingNotify :
case VisibilityNotify :
case MapRequest :
/*WARNING*Unimplemented EVENT type*/
Xw_set_error(86,"Xw_wait_event",&xevent.type) ;
break ;
}
if(( icbk = pwindow->icbk[xwevent.any.type].function )) {
status = (*icbk)(&xwevent) ;
}
if(( ecbk = pwindow->ecbk[xwevent.any.type].function )) {
userdata = pwindow->ecbk[xwevent.any.type].userdata ;
status = (*ecbk)(&xwevent,userdata) ;
}
}
}
#ifdef TRACE_WAIT_EVENT
if( Xw_get_trace() ) {
printf (" Xw_wait_event(%lx)\n",(long ) pwindow) ;
}
#endif
return (status);
}
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