static gboolean
bst_canvas_link_child_event (GnomeCanvasItem *item,
GdkEvent *event)
{
BstCanvasLink *clink;
GtkWidget *widget = GTK_WIDGET (item->canvas);
gboolean handled = FALSE;
clink = BST_CANVAS_LINK (item);
switch (event->type)
{
case GDK_ENTER_NOTIFY:
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
handled = TRUE;
break;
case GDK_LEAVE_NOTIFY:
handled = TRUE;
break;
case GDK_KEY_PRESS:
switch (event->key.keyval)
{
case 'L':
gnome_canvas_item_lower (item, 1);
GNOME_CANVAS_NOTIFY (item);
break;
case 'l':
gnome_canvas_item_lower_to_bottom (item);
GNOME_CANVAS_NOTIFY (item);
break;
case 'R':
gnome_canvas_item_raise (item, 1);
GNOME_CANVAS_NOTIFY (item);
break;
case 'r':
gnome_canvas_item_raise_to_top (item);
GNOME_CANVAS_NOTIFY (item);
break;
}
handled = TRUE;
break;
case GDK_KEY_RELEASE:
handled = TRUE;
break;
default:
break;
}
return handled;
}
static int itemRaise( Tcl_Interp *interp, int objc, Tcl_Obj * const objv[],
CanvasParams *param, GPtrArray *items, int isRaise )
{
int k;
int position = 0;
if( objc == 4 )
{
if( Tcl_GetIntFromObj( interp, objv[3], &position ) != TCL_OK )
return TCL_ERROR;
if( position == 0 )
return TCL_OK;
if( position < 0 )
{
position *= -1;
isRaise = !isRaise;
}
}
else if( objc > 4 )
{
Tcl_WrongNumArgs( interp, 3, objv, "?position?" );
return TCL_ERROR;
}
if( items != NULL )
{
for( k = 0; k < items->len; ++k )
{
Gnocl_CanvasItemInfo *info = GET_INFO( items, k );
if( isRaise )
{
/* TODO: with libgnomecanvas-2.2.1 raise_to_top works exactly once */
if( objc == 3 )
gnome_canvas_item_raise_to_top( info->item );
else
gnome_canvas_item_raise( info->item, position );
}
else
{
if( objc == 3 )
gnome_canvas_item_lower_to_bottom( info->item );
else
gnome_canvas_item_lower( info->item, position );
}
}
}
return TCL_OK;
}
