.\"	$NetBSD: panel.3,v 1.3 2015/10/28 10:22:40 wiz Exp $
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.\" Copyright (c) 2015 Valery Ushakov
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.Dd October 28, 2015
.Dt PANEL 3
.Os
.Sh NAME
.Nm panel
.Nd z-order for curses windows
.Sh LIBRARY
.Lb libpanel
.Sh SYNOPSIS
.In panel.h
.Sh DESCRIPTION
Overlapping curses windows have no notion of z-order,
what you see on the screen depends on the order of updates.
The
.Nm
library is an extension built on top of
.Xr curses 3
that adds z-order to curses windows.
.Pp
Each panel has an associated curses window.
All currently visible panels form a
.Dq deck .
Panels have z-order only relative to other panels in the deck and to
.\".Xr stdscr 3 .
stdscr.
The latter doesn't have a panel of its own but implicitly lies below
all other panels in the deck.
If you mix plain curses windows and panels, the visual results are
undefined since the panel library is not aware of windows that are not
associated with panels.
.Bl -column ".Xr set_panel_userptr 3"
.It Sy "Function"          Ta Sy "Summary"
.It Xr bottom_panel 3      Ta move the panel to the bottom of the deck
.It Xr del_panel 3         Ta delete the panel
.It Xr hide_panel 3        Ta hide the panel, removing it from deck
.It Xr move_panel 3        Ta move the panel to a new position on screen
.It Xr new_panel 3         Ta create new panel
.It Xr panel_above 3       Ta a panel above the given panel
.It Xr panel_below 3       Ta a panel below the given panel
.It Xr panel_hidden 3      Ta check if the panel is hidden
.It Xr panel_userptr 3     Ta user data associated with the panel
.It Xr panel_window 3      Ta curses window associated with the panel
.It Xr replace_panel 3     Ta associate a different window with the panel
.It Xr set_panel_userptr 3 Ta associate arbitrary user data with the panel
.It Xr show_panel 3        Ta show hidden panel at the top of the deck
.It Xr top_panel 3         Ta move the panel to the top of the deck
.It Xr update_panels 3     Ta update terminal display
.El
.Sh SEE ALSO
.Xr curses 3