2913 lines
93 KiB
Groff
2913 lines
93 KiB
Groff
.\" $Id: dialog.3,v 1.60 2011/03/02 10:19:12 tom Exp $
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.\" Copyright 2005-2010,2011 Thomas E. Dickey
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.\"
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.\" This program is free software; you can redistribute it and/or modify
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.\" it under the terms of the GNU Lesser General Public License, version 2.1
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.\" as published by the Free Software Foundation.
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.\"
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.\" This program is distributed in the hope that it will be useful, but
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.\" WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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.\" Lesser General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU Lesser General Public
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.\" License along with this program; if not, write to
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.\" Free Software Foundation, Inc.
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.\" 51 Franklin St., Fifth Floor
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.\" Boston, MA 02110, USA.
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.\"
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.\" definitions for renaming
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.ds p dialog
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.ds l dialog
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.ds L Dialog
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.ds D DIALOG
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.\" Bulleted paragraph
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.de bP
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.IP \(bu 4
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..
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.TH \*D 3 "" "$Date: 2011/03/02 10:19:12 $"
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.SH NAME
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\*l \- widgets and utilities for the \*p program
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.SH SYNOPSIS
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.B cc [ flag ... ] file ... -l\*l [ library ... ]
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.br
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\ \ \ or
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.br
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.B cc `\*p-config --cflags` file ... `\*p-config --libs` ]
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.sp
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.B #include <\*l.h>
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.PP
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\fB\*L\fP
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is a program that will let you to present a variety of questions or
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display messages using dialog boxes from a shell script.
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It is built from the \fB\*l\fP library,
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which consists of several widgets
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as well as utility functions that are used by the widgets
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or the main program.
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.
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.SH DESCRIPTION
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This manpage documents the features from \fI<\*l.h>\fP which
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are likely to be important to developers using the widgets directly.
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Some hints are also given for developing new widgets.
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.
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.\" ************************************************************************
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.SH DEFINITIONS
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Exit codes (passed back to the main program for its use)
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are defined with a "\fIDLG_EXIT_\fP prefix.
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The defined constants can be mapped using environment variables
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as described in \fB\*p\fP(1),
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e.g., \fIDLG_EXIT_OK\fP corresponds to \fI$DIALOG_OK\fP.
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.PP
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Useful character constants which correspond to user input
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are named with the "\fICHR_\fP" prefix, e.g.,
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\fICHR_BACKSPACE\fP.
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.PP
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Colors and video attributes are categorized and associated with
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settings in the configuration file
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(see the discussion of \fI$DIALOGRC\fP in \fB\*p\fP(1)).
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The \fIDIALOG_ATR(n)\fP macro is used for defining the references
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to the combined color and attribute table \fIdlg_color_table[]\fP.
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.PP
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The \fB\*p\fP application passes its command-line parameters
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to the widget functions. Some of those parameters are single values,
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but some of the widgets accept data as an array of values.
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Those include checklist/radiobox, menubox and formbox.
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When the \fB--item-help\fP option is given, an extra column
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of data is expected.
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The USE_ITEM_HELP(), CHECKBOX_TAGS, MENUBOX_TAGS and FORMBOX_TAGS
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macros are used to hide this difference from the calling application.
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.PP
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Most of the other definitions found in \fI<\*l.h>\fP
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are used for convenience in building the library or main program.
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These include definitions based on the generated \fI<dlg_config.h>\fP header.
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.\" ************************************************************************
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.SH DATA STRUCTURES
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All of the global data for the \fB\*l\fP library is stored in
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a few structures: \fIDIALOG_STATE\fP, \fIDIALOG_VARS\fP and \fIDIALOG_COLORS\fP.
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The corresponding \fIdialog_state\fP, \fIdialog_vars\fP and \fIdlg_color_table\fP
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global variables should be initialized to zeros,
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and then populated with the data to use.
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A few of these must be nonzero for the corresponding widgets to function.
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As as the case with function names,
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variables beginning with "\fIdialog_\fP"
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are designed for use by the calling application
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while variables beginning with "\fIdlg_\fP"
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are intended for lower levels, e.g., by the \fB\*l\fP library.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.all_windows
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This is a linked list of all windows created by the library.
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The \fBdlg_del_window\fP function uses this to locate windows which
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may be redrawn after deleting a window.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.aspect_ratio
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This corresponds to the command-line option "\fB--aspect-ratio\fP".
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The value gives the application
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some control over the box dimensions when using auto
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sizing (specifying 0 for height and width).
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It represents width / height.
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The default is 9, which means 9 characters wide to every 1 line high.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.getc_callbacks
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This is setup in \fIui_getc.c\fP to record windows which must be polled
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for input, e.g,. to handle the background tailbox widget.
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One window is designated as the foreground or control window.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.getc_redirect
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If the control window for \fIDIALOG_STATE.getc_callbacks\fP is
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closed, the list is transferred to this variable.
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Closing all windows causes the application to exit.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.no_mouse
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This corresponds to the command-line option "\fB--no-mouse\fP".
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If true, \fB\*p\fP will not initialize (and enable) the mouse in
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\fIinit_dialog\fP.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.output
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This is set in the \fB\*p\fP application to the stream on
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which the application and library functions may write text results.
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Normally that is the standard error,
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since the curses library prefers to write its data to the standard output.
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Some scripts, trading portability for convenience,
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prefer to write results to the standard output,
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e.g., by using the "\fB--stdout\fP" option.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.output_count
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This is incremented by \fIdlg_does_output\fP,
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which is called by each widget that writes text to the output.
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The \fB\*p\fP application uses that to decide if it should
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also write a separator, i.e.,
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\fIDIALOG_STATE.separate_str\fP,
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between calls to each widget.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.pipe_input
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This is set in \fIinit_dialog\fP to a stream which can be used by the
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\fBgauge\fP widget, which must be the application's standard input.
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The \fB\*p\fP application calls \fIinit_dialog\fP normally with
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\fIinput\fP set to the standard input, but optionally based on the
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"\fB--input-fd\fP" option.
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Since the application cannot read from
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a pipe (standard input) and at the same time read
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the curses input from the standard input,
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it must allow for reopening the latter from either
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a specific file descriptor,
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or directly from the terminal.
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The adjusted pipe stream value is stored in this variable.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.screen_initialized
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This is set in \fIinit_dialog\fP and
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reset in \fIend_dialog\fP.
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It is used to check if curses has been initialized,
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and if the \fIendwin\fP function must be called on exit.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.screen_output
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This is set in \fIinit_dialog\fP to the output stream used
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by the curses library.
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Normally that is the standard output,
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unless that happens to not be a terminal (and if \fIinit_dialog\fP can
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successfully open the terminal directly).
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.separate_str
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This corresponds to the command-line option "\fB--separate-widget\fP".
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The given string
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specifies a string that will separate the output on \fB\*p\fP's output from
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each widget.
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This is used to simplify parsing the result of a dialog with several widgets.
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If this option is not given,
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the default separator string is a tab character.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.tab_len
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This corresponds to the command-line option "\fB--tab-len\fP \fInumber\fP".
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Specify the number of spaces that a tab character occupies if the
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"\fB--tab-correct\fP"
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option is given.
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The default is 8.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.trace_output
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This corresponds to the command-line option "\fB--trace\fP \fIfile\fP".
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It is the file pointer to which trace messages are written.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.use_colors
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This is set in \fIinit_dialog\fP if the curses implementation supports color.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.use_scrollbar
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This corresponds to the command-line option "\fB--scrollbar\fP".
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If true,
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draw a scrollbar to make windows holding scrolled data more readable.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.use_shadow
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This corresponds to the command-line option "\fB--no-shadow\fP".
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This is set in \fIinit_dialog\fP if the curses implementation supports color.
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If true,
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suppress shadows that would be drawn to the right and bottom of each dialog box.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_STATE.visit_items
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This corresponds to the command-line option "\fB--visit-items\fP".
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.\" ---------------------------------------------------------------------------
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.PP
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The \fB\*p\fP application resets the \fIdialog_vars\fP data before
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accepting options to invoke each widget.
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Most of the \fIDIALOG_VARS\fP members are set directly from \fB\*p\fP's
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command-line options:
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.ascii_lines
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.backtitle
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This corresponds to the command-line option "\fB--backtitle\fP \fIbacktitle\fP".
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It specifies a
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\fIbacktitle\fP
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string to be displayed on the backdrop, at the top of the screen.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.beep_after_signal
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This corresponds to the command-line option "\fB--beep-after\fP".
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If true, beep after a user has completed a widget by pressing one of the buttons.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.beep_signal
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This corresponds to the command-line option "\fB--beep\fP".
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It is obsolete.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.begin_set
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This is true if the command-line option "\fB--begin y x\fP" was used.
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It specifies the position of the upper left corner of a dialog box on the screen.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.begin_x
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This corresponds to the \fIx\fP value from
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the command-line option "\fB--begin\fP \fIy x\fP" (second value).
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.begin_y
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This corresponds to the \fIy\fP value from
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the command-line option "\fB--begin\fP \fIy x\fP" (first value).
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.cancel_label
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This corresponds to the command-line option "\fB--cancel-label\fP \fIstring\fP".
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The given \fIstring\fP overrides the label used for "Cancel" buttons.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.cant_kill
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This corresponds to the command-line option "\fB--no-kill\fP".
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If true, this tells
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\fB\*p\fP
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to put the
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\fBtailboxbg\fP
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box in the background,
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printing its process id to \fB\*p\fP's output.
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SIGHUP is disabled for the background process.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.colors
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This corresponds to the command-line option "\fB--colors\fP".
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If true, interpret embedded "\\Z" sequences in the dialog text
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by the following character,
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which tells \fB\*p\fP to set colors or video attributes:
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0 through 7 are the ANSI codes used in curses:
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black,
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red,
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green,
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yellow,
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blue,
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magenta,
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cyan and
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white respectively.
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Bold is set by 'b', reset by 'B'.
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Reverse is set by 'r', reset by 'R'.
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Underline is set by 'u', reset by 'U'.
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The settings are cumulative, e.g., "\\Zb\\Z1" makes the following text
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bright red.
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Restore normal settings with "\\Zn".
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.column_separator
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.cr_wrap
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This corresponds to the command-line option "\fB--cr-wrap\fP".
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If true,
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interpret embedded newlines in the dialog text as a newline on the screen.
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Otherwise, \fB\*p\fR will only wrap lines where needed to fit inside the text box.
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Even though you can control line breaks with this,
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\fB\*p\fR will still wrap any lines that are too long for the width of the box.
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Without cr-wrap, the layout of your text may be formatted to look nice
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in the source code of your script without affecting the way it will
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look in the dialog.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.date_format
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This corresponds to the command-line option "\fB--date-format\fP \fIstring\fP".
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If the host provides \fBstrftime\fP, and the value is nonnull,
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the calendar widget uses this to format its output.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.default_item
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This corresponds to the command-line option "\fB--default-item\fP \fIstring\fP".
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The given string is used as
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the default item in a checklist, form or menu box.
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Normally the first item in the box is the default.
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.IP \fIDIALOG_VARS.defaultno
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This corresponds to the command-line option "\fB--defaultno\fP".
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If true,
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make the default value of the
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\fByes/no\fP
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box a
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.BR No .
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Likewise, make the default button of widgets that provide "OK" and "Cancel"
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a \fBCancel\fP.
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If \fB--nocancel\fP was given that option overrides this,
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making the default button always "Yes" (internally the same as "OK").
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.dlg_clear_screen
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This corresponds to the command-line option "\fB--clear\fP".
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This option is implemented in the main program, not the library.
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If true,
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the screen will be cleared on exit.
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This may be used alone, without other options.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.exit_label
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This corresponds to the command-line option "\fB--exit-label string\fP".
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The given string overrides the label used for "EXIT" buttons.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.extra_button
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This corresponds to the command-line option "\fB--extra-button\fP".
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If true, some widgets show an extra button,
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between "OK" and "Cancel" buttons.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.extra_label
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This corresponds to the command-line option "\fB--extra-label\fP \fIstring\fP".
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The given string overrides the label used for "Extra" buttons.
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Note: for inputmenu widgets, this defaults to "Rename".
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.formitem_type
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This is set by the command-line option "\fB--passwordform\fP"
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to tell the form widget that its text fields should be treated like
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password widgets.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.help_button
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This corresponds to the command-line option "\fB--help-button\fP".
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If true, some widgets show a help-button after "OK" and "Cancel" buttons,
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i.e., in checklist, radiolist and menu boxes.
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If \fB--item-help\fR is also given, on exit
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the return status will be the same as for the "OK" button,
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and the item-help text will be written to \fB\*p\fP's output after the token "HELP".
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Otherwise, the return status will indicate that the Help button was pressed,
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and no message printed.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.help_label
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This corresponds to the command-line option "\fB--help-label\fP \fIstring\fP".
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The given string overrides the label used for "Help" buttons.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.help_status
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This corresponds to the command-line option "\fB--help-status\fP".
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If true, and the the help-button is selected,
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writes the checklist or radiolist information
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after the item-help "HELP" information.
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This can be used to reconstruct the state of a checklist after processing
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the help request.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.input_length
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This is nonzero if \fIDIALOG_VARS.input_result\fP is allocated,
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versus being a pointer to the user's local variables.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.input_menu
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This flag is set to denote whether the menubox widget
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implements a menu versus a inputmenu widget.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.input_result
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This may be either a user-supplied buffer,
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or a buffer dynamically allocated by the library,
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depending on \fIDIALOG_VARS.input_length\fP:
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.RS
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.bP
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If \fIDIALOG_VARS.input_length\fP is zero,
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this is a pointer to user buffer (on the stack, or static).
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The buffer size is assumed to be \fBMAX_LEN\fP,
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which is defined in \fI<\*l.h>\fP.
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.bP
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When \fIDIALOG_VARS.input_length\fP is nonzero,
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this is a dynamically-allocated buffer used by the widgets to return
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printable results to the calling application.
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.RE
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.IP
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Certain widgets copy a result to this buffer.
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If the pointer is NULL, or if the length is insufficient for
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the result, then the \fB\*l\fP library allocates a buffer which is large enough,
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and sets \fIDIALOG_VARS.input_length\fP.
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Callers should check for this case if they have supplied their own buffer.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.insecure
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This corresponds to the command-line option "\fB--insecure\fP".
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If true, make the password widget friendlier but less secure,
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by echoing asterisks for each character.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.item_help
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This corresponds to the command-line option "\fB--item-help\fP".
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If true,
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interpret the tags data for checklist, radiolist and menu boxes
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adding a column whose text is displayed in the bottom line of the
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screen, for the currently selected item.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.keep_tite
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This is set by the command-line option "\fB--keep-tite\fP"
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to tell \fB\*p\fP to not attempt to cancel the terminal initialization
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(termcap \fIti\fP/\fIte\fP) sequences which correspond to xterm's alternate-screen
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switching.
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Normally \fB\*p\fP does this to avoid flickering when run several times
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in a script.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.keep_window
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This corresponds to the command-line option "\fB--keep-window\fP".
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If true, do not remove/repaint the window on exit.
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This is useful for keeping the window contents visible when several
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widgets are run in the same process.
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Note that curses will clear the screen when starting a new process.
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.\" ---------------------------------------------------------------------------
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.IP \fIDIALOG_VARS.max_input
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This corresponds to the command-line option "\fB--max-input\fP \fIsize\fP".
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Limit input strings to the given size.
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If not specified, the limit is 2048.
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|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.no_label
|
|
This corresponds to the command-line option "\fB--no-label\fP \fIstring\fP".
|
|
The given string overrides the label used for "No" buttons.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.no_lines
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.nocancel
|
|
This corresponds to the command-line option "\fB--no-cancel\fP".
|
|
If true,
|
|
suppress the "Cancel" button in checklist, inputbox and menu box modes.
|
|
A script can still test if the user pressed the ESC key to cancel to quit.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.nocollapse
|
|
This corresponds to the command-line option "\fB--no-collapse\fP".
|
|
Normally \fB\*p\fR converts tabs to spaces and reduces multiple
|
|
spaces to a single space for text which is displayed in a message boxes, etc.
|
|
It true, that feature is disabled.
|
|
Note that \fB\*p\fR will still wrap text, subject to the \fB--cr-wrap\fR
|
|
option.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.nook
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.ok_label
|
|
This corresponds to the command-line option "\fB--ok-label\fP \fIstring\fP".
|
|
The given string overrides the label used for "OK" buttons.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.print_siz
|
|
This corresponds to the command-line option "\fB--print-size\fP".
|
|
If true,
|
|
each widget prints its size to \fB\*p\fP's output when it is invoked.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.quoted
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.separate_output
|
|
This corresponds to the command-line option "\fB--separate-output\fP".
|
|
If true,
|
|
checklist widgets output result one line at a time, with no quoting.
|
|
This facilitates parsing by another program.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.single_quoted
|
|
This corresponds to the command-line option "\fB--single-quoted\fP".
|
|
If true,
|
|
Use single-quoting as needed (and no quotes if unneeded) for the
|
|
output of checklist's as well as the item-help text.
|
|
If this option is not set, \fB\*p\fP uses double quotes around each item.
|
|
That requires occasional use of backslashes to make the output useful in
|
|
shell scripts.
|
|
.IP \fIDIALOG_VARS.size_err
|
|
This corresponds to the command-line option "\fB--size-err\fP".
|
|
If true,
|
|
check the resulting size of a dialog box before trying to use it,
|
|
printing the resulting size if it is larger than the screen.
|
|
(This option is obsolete, since all new-window calls are checked).
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.sleep_secs
|
|
This corresponds to the command-line option "\fB--sleep\fP \fIsecs\fP".
|
|
This option is implemented in the main program, not the library.
|
|
If nonzero, this is the number of seconds after to delay after processing a dialog box.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.tab_correct
|
|
This corresponds to the command-line option "\fB--tab-correct\fP".
|
|
If true, convert each tab character of the text to one or more spaces.
|
|
Otherwise, tabs are rendered according to the curses library's interpretation.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.time_format
|
|
This corresponds to the command-line option "\fB--time-format\fP \fIstring\fP".
|
|
If the host provides \fBstrftime\fP, and the value is nonnull,
|
|
the timebox widget uses this to format its output.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.timeout_secs
|
|
This corresponds to the command-line option "\fB--timeout\fP \fIsecs\fP".
|
|
If nonzero, timeout input requests (exit with error code)
|
|
if no user response within the given number of seconds.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.title
|
|
This corresponds to the command-line option "\fB--title\fP \fItitle\fP".
|
|
Specifies a
|
|
\fItitle\fP
|
|
string to be displayed at the top of the dialog box.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.trim_whitespace
|
|
This corresponds to the command-line option "\fB--trim\fP".
|
|
If true, eliminate leading blanks,
|
|
trim literal newlines and repeated blanks from message text.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.visit_items
|
|
This corresponds to the command-line option "\fB--visit-items\fP".
|
|
Modify the tab-traversal of checklist, radiobox, menubox and inputmenu
|
|
to include the list of items as one of the states.
|
|
This is useful as a visual aid,
|
|
i.e., the cursor position helps some users.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP \fIDIALOG_VARS.yes_label
|
|
This corresponds to the command-line option "\fB--yes-label\fP \fIstring\fP".
|
|
The given string overrides the label used for "Yes" buttons.
|
|
.
|
|
.\" ************************************************************************
|
|
.\" ************************************************************************
|
|
.SH WIDGETS
|
|
Functions that implement major functionality for the command-line \fB\*p\fP
|
|
program, e.g., widgets, have names beginning "\fIdialog_\fP".
|
|
|
|
All dialog boxes have at least three parameters:
|
|
.TP 5
|
|
\fItitle\fP
|
|
the caption for the box, shown on its top border.
|
|
.TP 5
|
|
\fIheight\fP
|
|
the height of the dialog box.
|
|
.TP 5
|
|
\fIwidth\fP
|
|
the width of the dialog box.
|
|
.PP
|
|
Other parameters depend on the box type.
|
|
.
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_calendar
|
|
implements the "\fB--calendar\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP subtitle
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the height excluding the fixed-height calendar grid.
|
|
.IP width
|
|
is the overall width of the box,
|
|
which is adjusted up to the calendar grid's minimum width if needed.
|
|
.IP day
|
|
is the initial day of the week shown,
|
|
counting zero as Sunday.
|
|
If the value is negative, the current day of the week is used.
|
|
.IP month
|
|
is the initial month of the year shown,
|
|
counting one as January.
|
|
If the value is negative, the current month of the year is used.
|
|
.IP year
|
|
is the initial year shown.
|
|
If the value is negative, the current year is used.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_checklist
|
|
implements the "\fB--checklist\fP" and "\fB--radiolist\fP" options
|
|
depending on the \fIflag\fP parameter.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP list_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.IP item_no
|
|
is the number of rows in \fIitems\fP.
|
|
.IP items
|
|
is an array of strings which is viewed either as a list of rows
|
|
.RS
|
|
\fItag item status \fR
|
|
.RE
|
|
.IP
|
|
or
|
|
.RS
|
|
\fItag item status help\fR
|
|
.RE
|
|
.IP
|
|
depending on whether \fIdialog_vars.item_help\fP is set.
|
|
.IP flag
|
|
is either \fIFLAG_CHECK\fP, for checklists,
|
|
or \fIFLAG_RADIO\fP for radiolists.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_dselect
|
|
implements the "\fB--dselect\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP path
|
|
is the preselected value to show in the input-box,
|
|
which is used also to set the directory- and file-windows.
|
|
.IP height
|
|
is the height excluding the minimum needed to show the dialog box framework.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_editbox
|
|
implements the "\fB--editbox\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP file
|
|
is the name of the file from which to read.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_form
|
|
implements the "\fB--form\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP form_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.IP item_no
|
|
is the number of rows in \fIitems\fP.
|
|
.IP items
|
|
is an array of strings which is viewed either as a list of rows
|
|
.RS
|
|
\fIName NameY NameX Text TextY TextX FLen ILen\fR
|
|
.RE
|
|
.IP
|
|
or
|
|
.RS
|
|
\fIName NameY NameX Text TextY TextX FLen ILen Help\fR
|
|
.RE
|
|
.IP
|
|
depending on whether \fIdialog_vars.item_help\fP is set.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_fselect
|
|
implements the "\fB--fselect\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP path
|
|
is the preselected value to show in the input-box,
|
|
which is used also to set the directory- and file-windows.
|
|
.IP height
|
|
is the height excluding the minimum needed to show the dialog box framework.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_gauge
|
|
implements the "\fB--gauge\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP percent
|
|
is the percentage to show in the progress bar.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_inputbox
|
|
implements the "\fB--inputbox\fP" or
|
|
"\fB--password\fP" option, depending on the value of \fIpassword\fP.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP init
|
|
is the initial value of the input box, whose length is taken into account
|
|
when auto-sizing the width of the dialog box.
|
|
.IP password
|
|
if true, causes typed input to be echoed as asterisks.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_menu
|
|
implements the "\fB--menu\fP" or "\fB--inputmenu\fP" option
|
|
depending on whether \fIdialog_vars.input_menu\fP is set.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP menu_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.IP item_no
|
|
is the number of rows in \fIitems\fP.
|
|
.IP items
|
|
is an array of strings which is viewed either as a list of rows
|
|
.RS
|
|
\fItag item\fR
|
|
.RE
|
|
.IP
|
|
or
|
|
.RS
|
|
\fItag item help\fR
|
|
.RE
|
|
.IP
|
|
depending on whether \fIdialog_vars.item_help\fP is set.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_mixedform
|
|
implements the "\fB--mixedform\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.IP form_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.IP item_no
|
|
is the number of rows in \fIitems\fP.
|
|
.IP items
|
|
is an array of strings which is viewed either as a list of rows
|
|
.RS
|
|
\fIName NameY NameX Text TextY TextX FLen ILen Ityp\fR
|
|
.RE
|
|
.IP
|
|
or
|
|
.RS
|
|
\fIName NameY NameX Text TextY TextX FLen ILen Ityp Help\fR
|
|
.RE
|
|
.IP
|
|
depending on whether \fIdialog_vars.item_help\fP is set.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_mixedgauge
|
|
implements the "\fB--mixedgauge\fP" option
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the caption text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP percent
|
|
is the percentage to show in the progress bar.
|
|
.IP item_no
|
|
is the number of rows in \fIitems\fP.
|
|
.IP items
|
|
is an array of strings which is viewed as a list of \fItag\fP and \fIitem\fP values.
|
|
The \fItag\fP values are listed, one per row, in the list at the top of
|
|
the widget.
|
|
.IP
|
|
The \fIitem\fP values are decoded: digits 0-9 are the following strings
|
|
.RS
|
|
.IP 0
|
|
Succeeded
|
|
.IP 1
|
|
Failed
|
|
.IP 2
|
|
Passed
|
|
.IP 3
|
|
Completed
|
|
.IP 4
|
|
Checked
|
|
.IP 5
|
|
Done
|
|
.IP 6
|
|
Skipped
|
|
.IP 7
|
|
In Progress
|
|
.IP 8
|
|
(blank)
|
|
.IP 9
|
|
N/A
|
|
.RE
|
|
.IP
|
|
A string with a leading "-" character is centered, marked with "%".
|
|
For example, "-75" is displayed as "75%".
|
|
Other strings are displayed as is.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_msgbox
|
|
implements the "\fB--msgbox\fP" or "\fB--infobox\fP" option
|
|
depending on whether \fIpauseopt\fP is set.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP pauseopt
|
|
if true, an "OK" button will be shown,
|
|
and the dialog will wait for it to complete.
|
|
With an "OK" button, it is denoted a "msgbox",
|
|
without an "OK" button, it is denoted an "infobox".
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_pause
|
|
implements the "\fB--pause\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP seconds
|
|
is the timeout to use for the progress bar.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_prgbox
|
|
implements the "\fB--prgbox\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
If empty or null, no prompt is shown.
|
|
.IP command
|
|
is the name of the command to execute.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP pauseopt
|
|
if true, an "OK" button will be shown,
|
|
and the dialog will wait for it to complete.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_progressbox
|
|
implements the "\fB--progressbox\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
If empty or null, no prompt is shown.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_tailbox
|
|
implements the "\fB--tailbox\fP" or "\fB--tailboxbg\fP" option
|
|
depending on whether \fIbg_task\fP is set.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP file
|
|
is the name of the file to display in the dialog.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP bg_task
|
|
if true,
|
|
the window is added to the callback list in \fIdialog_state\fP,
|
|
and the application will poll for the window to be updated.
|
|
Otherwise an "OK" button is added to the window,
|
|
and it will be closed when the button is activated.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_textbox
|
|
implements the "\fB--textbox\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP file
|
|
is the name of the file to display in the dialog.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_timebox
|
|
implements the "\fB--timebox\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP subtitle
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP hour
|
|
is the initial hour shown.
|
|
If the value is negative, the current hour is used.
|
|
Returns DLG_EXIT_ERROR if the value specified is greater than or equal to 24.
|
|
.IP minute
|
|
is the initial minute shown.
|
|
If the value is negative, the current minute is used.
|
|
Returns DLG_EXIT_ERROR if the value specified is greater than or equal to 60.
|
|
.IP second
|
|
is the initial second shown.
|
|
If the value is negative, the current second is used.
|
|
Returns DLG_EXIT_ERROR if the value specified is greater than or equal to 60.
|
|
.RE
|
|
.\" ************************************************************************
|
|
.IP \fBdialog_yesno
|
|
implements the "\fB--yesno\fP" option.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.RE
|
|
.
|
|
.\" ************************************************************************
|
|
.SH UTILITY FUNCTIONS
|
|
Most functions that implement lower-level
|
|
functionality for the command-line \fB\*p\fP
|
|
program or widgets, have names beginning "\fIdlg_\fP".
|
|
Bowing to longstanding usage, the functions that initialize the
|
|
display and end it are named \fIinit_dialog\fP and \fIend_dialog\fP.
|
|
.PP
|
|
The only non-widget function whose name begins with "\fIdialog_\fP"
|
|
is \fIdialog_version\fP, which returns the version number of the
|
|
library as a string.
|
|
.
|
|
.PP
|
|
Here is a brief summary of the utility functions and their parameters:
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_callback
|
|
Add a callback, used to allow polling input from multiple tailbox
|
|
widgets.
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_CALLBACK *\fIp\fP
|
|
contains the callback information.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_callback_ref
|
|
Like \fBdlg_add_callback\fP, but passes a reference to the \fBDIALOG_CALLBACK\fP
|
|
as well as a pointer to a cleanup function which will be called when the
|
|
associated input ends.
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_CALLBACK **\fIp\fP
|
|
points to the callback information.
|
|
This is a reference to the pointer so that the caller's pointer can be
|
|
zeroed when input ends.
|
|
.TP 5
|
|
.B DIALOG_FREEBACK \fIfunc\fP
|
|
function to call when input ends, e.g., to free caller's additional data.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_quoted
|
|
Add a quoted string to the result buffer (see \fBdlg_add_result\fP).
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIstring
|
|
is the string to add.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_result
|
|
Add a quoted string to the result buffer \fBdialog_vars.input_result\fP.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIstring
|
|
is the string to add.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_separator
|
|
Add an output-separator to the result buffer \fBdialog_vars.input_result\fP.
|
|
If \fBdialog_vars.output_separator\fP is set, use that.
|
|
Otherwise, if \fBdialog_vars.separate_output\fP is set, use newline.
|
|
If neither is set, use a space.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_add_string
|
|
Add a quoted or unquoted string to the result buffer
|
|
(see \fBdlg_add_quoted\fP) and \fBdlg_add_result\fP),
|
|
according to whether \fBdialog_vars.quoted\fP is true.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIstring
|
|
is the string to add.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_align_columns
|
|
Copy and reformat an array of pointers to strings, aligning according to
|
|
the column separator \fBdialog_vars.column_separator\fP.
|
|
If no column separator is set, the array will be unmodified;
|
|
otherwise it is copied and reformatted.
|
|
.IP
|
|
Caveat: This function is only implemented for 8-bit characters.
|
|
.RS
|
|
.TP 5
|
|
.B char **\fItarget
|
|
This is the array to reformat.
|
|
It points to the first string to modify.
|
|
.TP 5
|
|
.B int \fIper_row
|
|
This is the size of the struct for each row of the array.
|
|
.TP 5
|
|
.B int \fInum_rows
|
|
This is the number of rows in the array.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_asciibox
|
|
returns its parameter transformed to the
|
|
corresponding "+" or "-", etc. for the line-drawing characters used in \fB\*p\fP.
|
|
If the parameter is not a line-drawing or other special character such as ACS_DARROW, it returns 0.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_attr_clear
|
|
Set window to the given attribute.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the number of rows to update.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the number of columns to update.
|
|
.TP 5
|
|
.B chtype \fIattr
|
|
is the attribute, e.g., \fBA_BOLD\fP.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_auto_size
|
|
Automatically size the window used for a widget.
|
|
If the given height or width are zero,
|
|
justify the \fIprompt\fP text and return the actual limits.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B const char * \fIprompt
|
|
is the message text which will be displayed in the widget,
|
|
used here to determine how large the widget should be.
|
|
.TP 5
|
|
.B int * \fIheight
|
|
is the nominal height.
|
|
.TP 5
|
|
.B int * \fIwidth
|
|
is the nominal width.
|
|
.TP 5
|
|
.B int \fIboxlines
|
|
is the number of lines to reserve in the vertical direction.
|
|
.TP 5
|
|
.B int \fImincols
|
|
is the minimum number of columns to use.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_auto_sizefile
|
|
Like \fBdlg_auto_size\fP, but use a file contents to decide how large
|
|
the widget should be.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B const char * \fIfile
|
|
is the name of the file.
|
|
.TP 5
|
|
.B int * \fIheight
|
|
is the nominal height.
|
|
If it is -1, use the screen's height after subtracting \fBdialog_vars.begin_y\fP
|
|
if \fBdialog_vars.begin_set\fP is true.
|
|
.TP 5
|
|
.B int \fI*width
|
|
is the nominal width.
|
|
If it is -1, use the screen's width after subtracting \fBdialog_vars.begin_x\fP
|
|
if \fBdialog_vars.begin_set\fP is true.
|
|
.TP 5
|
|
.B int \fIboxlines
|
|
is the number of lines to reserve on the screen for drawing boxes.
|
|
.TP 5
|
|
.B int \fImincols
|
|
is the number of columns to reserve on the screen for drawing boxes.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_beeping
|
|
If \fBdialog_vars.beep_signal\fP is nonzero,
|
|
this calls \fBbeep\fP once and sets
|
|
\fBdialog_vars.beep_signal\fP to zero.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_boxchar
|
|
returns its parameter transformed as follows:
|
|
.RS
|
|
.TP 3
|
|
.B -
|
|
if neither \fBdialog_vars.ascii_lines\fP nor \fBdialog_vars.no_lines\fP is set.
|
|
.TP 3
|
|
.B -
|
|
if \fBdialog_vars.ascii_lines\fP is set, returns the corresponding "+" or "-", etc. for the line-drawing characters used in \fB\*p\fP.
|
|
.TP 3
|
|
.B -
|
|
otherwise, if \fBdialog_vars.no_lines\fP is set, returns a space for the line-drawing characters.
|
|
.TP 3
|
|
.B -
|
|
if the parameter is not a line-drawing or other special character such as ACS_DARROW, it returns the parameter unchanged.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_box_x_ordinate
|
|
returns a suitable x-ordinate (column) for a new widget.
|
|
If \fBdialog_vars.begin_set\fP is 1,
|
|
use \fBdialog_vars.begin_x\fP;
|
|
otherwise center the widget on the screen (using the \fIwidth\fP parameter).
|
|
.RS
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width of the widget.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_box_y_ordinate
|
|
returns a suitable y-ordinate (row) for a new widget.
|
|
If \fBdialog_vars.begin_set\fP is 1,
|
|
use \fBdialog_vars.begin_y\fP;
|
|
otherwise center the widget on the screen (using the \fIheight\fP parameter).
|
|
.RS
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the height of the widget.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_button_count
|
|
Count the buttons in the list.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_button_layout
|
|
Make sure there is enough space for the buttons by
|
|
computing the width required for their labels,
|
|
adding margins and limiting based on the screen size.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int * \fIlimit
|
|
the function sets the referenced \fIlimit\fP to the width required for
|
|
the buttons (limited by the screen size)
|
|
if that is wider than the passed-in limit.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_button_sizes
|
|
Compute the size of the button array in columns.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int \fIvertical
|
|
is true if the buttons are arranged in a column rather than a row.
|
|
.TP 5
|
|
.B int * \fIlongest
|
|
Return the total number of columns in the referenced location.
|
|
.TP 5
|
|
.B int * \fIlength
|
|
Return the longest button's columns in the referenced location.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_button_x_step
|
|
Compute the step-size needed between elements of the button array.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int \fIlimit
|
|
is the maximum number of columns to allow for the buttons.
|
|
.TP 5
|
|
.B int * \fIgap
|
|
store the nominal gap between buttons in the referenced location.
|
|
This is constrained to be at least one.
|
|
.TP 5
|
|
.B int * \fImargin
|
|
store the left+right total margins (for the list of buttons) in the referenced
|
|
location.
|
|
.TP 5
|
|
.B int * \fIstep
|
|
store the step-size in the referenced location.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_button_to_char
|
|
Find the first uppercase character in the label, which we may use for an
|
|
abbreviation.
|
|
If the label is empty, return -1.
|
|
If no uppercase character is found, return 0.
|
|
Otherwise return the uppercase character.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIlabel
|
|
is the label to test.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_calc_list_width
|
|
Calculate the minimum width for the list, assuming none of the items
|
|
are truncated.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP.
|
|
.TP 5
|
|
.B DIALOG_LISTITEM * \fIitems
|
|
contains a \fIname\fP and \fItext\fP field,
|
|
e.g., for checklists or radiobox lists.
|
|
The function returns the sum of the widest columns
|
|
needed for of each of these fields.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_calc_listh
|
|
Calculate new height and list_height values.
|
|
.RS
|
|
.TP 5
|
|
.B int * \fIheight
|
|
on input, is the height without adding the list-height.
|
|
On return, this contains the total list-height and is the
|
|
actual widget's height.
|
|
.TP 5
|
|
.B int * \fIlist_height
|
|
on input, is the requested list-height.
|
|
On return, this contains the number of rows available for displaying
|
|
the list after taking into account the screen size and
|
|
the \fBdialog_vars.begin_set\fP and \fBdialog_vars.begin_y\fP variables.
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP in the list.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_calc_listw
|
|
This function is obsolete, provided for library-compatibility.
|
|
It is replaced by \fIdlg_calc_list_width\fP.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP.
|
|
.TP 5
|
|
.B char ** \fIitems
|
|
is a list of character pointers.
|
|
.TP 5
|
|
.B int \fIgroup
|
|
is the number of items in each group, e.g., the second array index.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_char_to_button
|
|
Given a list of button labels,
|
|
and a character which may be the abbreviation for one, find it, if it exists.
|
|
An abbreviation will be the first character
|
|
which happens to be capitalized in the label.
|
|
If the character is found, return its index within the list of \fIlabels\fP.
|
|
Otherwise, return \fBDLG_EXIT_UNKNOWN\fP.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIch
|
|
is the character to find.
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_checklist
|
|
This entrypoint provides the \fB--checklist\fP or \fP--radiolist\fP
|
|
functionality without the limitations of \fB\*p\fP's command-line syntax
|
|
(compare to \fBdialog_checklist\fP).
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B const char * \fIcprompt
|
|
is the prompt text shown within the widget.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIlist_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP.
|
|
.TP 5
|
|
.B DIALOG_LISTITEM * \fIitems
|
|
This is a list of the items to display in the checklist.
|
|
.TP 5
|
|
.B const char * \fIstates
|
|
This is a list of characters to display for the given states.
|
|
Normally a checklist provides true (1) and false (0) values,
|
|
which the widget displays as "*" and space, respectively.
|
|
An application may set this parameter to an arbitrary null-terminated string.
|
|
The widget determines the number of states from the length of this string,
|
|
and will cycle through the corresponding display characters as the user
|
|
presses the space-bar.
|
|
.TP 5
|
|
.B int \fIflag
|
|
This is should be one of \fBFLAG_CHECK\fP or \fPFLAG_RADIO\fP,
|
|
depending on whether the widget should act as a checklist or radiobox.
|
|
.TP 5
|
|
.B int * \fIcurrent_item
|
|
The widget sets the referenced location to the index of the current display
|
|
item (cursor) when it returns.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_check_scrolled
|
|
given a function key (or other key that was mapped to a function key),
|
|
check if it is one of the up/down scrolling functions:
|
|
.sp
|
|
.RS
|
|
DLGK_PAGE_FIRST,
|
|
.br
|
|
DLGK_PAGE_LAST,
|
|
.br
|
|
DLGK_GRID_UP,
|
|
.br
|
|
DLGK_GRID_DOWN,
|
|
.br
|
|
DLGK_PAGE_PREV or
|
|
.br
|
|
DLGK_PAGE_NEXT.
|
|
.RE
|
|
.fi
|
|
.IP
|
|
Some widgets use these key bindings for scrolling the prompt-text up and
|
|
down, to allow for display in very small windows.
|
|
.IP
|
|
The function returns 0 (zero) if it finds one of these keys,
|
|
and -1 if not.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIkey
|
|
is the function-key to check
|
|
.TP 5
|
|
.B int \fIlast
|
|
is the number of lines
|
|
which would be used to display the scrolled prompt in
|
|
an arbitrarily tall window.
|
|
It is used here to check limits for the \fIoffset\fP value.
|
|
.TP 5
|
|
.B int \fIpage
|
|
this is the available height for writing scrolled text,
|
|
which is smaller than the window if it contains buttons.
|
|
.TP 5
|
|
.B bool * \fIshow
|
|
on return, holds TRUE if \fBdlg_print_scrolled\fP should be used to redisplay
|
|
the prompt text.
|
|
.TP 5
|
|
.B int * \fIoffset
|
|
on entry, holds the starting line number (counting from zero)
|
|
last used for \fBdlg_print_scrolled\fP.
|
|
On return, holds the updated starting line number.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_clear
|
|
Set window to the default \fB\*p\fP screen attribute.
|
|
This is set in the rc-file with \fBscreen_color\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_clr_result
|
|
Free storage used for the result buffer (\fBdialog_vars.input_result\fP).
|
|
The corresponding pointer is set to NULL.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_color_count
|
|
Return the number of colors that can be configured in \fB\*p\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_color_setup
|
|
Initialize the color pairs used in \fB\*p\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_count_argv
|
|
Count the entries in an argument vector.
|
|
.RS
|
|
.TP 5
|
|
.B argv
|
|
Points to the argument vector.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_count_columns
|
|
Returns the number of columns used for a string.
|
|
This is not necessarily the number of bytes in a string.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to measure.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_count_wchars
|
|
Returns the number of wide-characters in the string.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to measure.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_create_rc
|
|
Create a configuration file,
|
|
i.e., write internal tables to a file which can be read back by \fB\*p\fP
|
|
as an rc-file.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIfilename
|
|
is the name of the file to write to.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_ctl_size
|
|
If \fBdialog_vars.size_err\fP is true,
|
|
check if the given window size is too large to fit on the screen.
|
|
If so, exit with an error reporting the size of the window.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the window's height
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the window's width
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_default_formitem
|
|
If \fBdialog_vars.default_item\fP is not null,
|
|
find that name by matching the \fIname\fP field in the list of form \fIitems\fP.
|
|
If found, return the index of that item in the list.
|
|
Otherwise, return zero.
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_FORMITEM * \fIitems
|
|
is the list of items to search.
|
|
It is terminated by an entry with a null \fIname\fP field.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_default_item
|
|
This function is obsolete, provided for library-compatibility.
|
|
It is replaced by \fIdlg_default_formitem\fP and \fIdlg_default_listitem\fP.
|
|
.RS
|
|
.TP 5
|
|
.B char ** \fIitems
|
|
is the list of items to search.
|
|
.TP 5
|
|
.B int \fIllen
|
|
is the number of items in each group, e.g., the second array index.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_defaultno_button
|
|
If \fBdialog_vars.defaultno\fP is true, and \fBdialog_vars.nocancel\fP is not,
|
|
find the button-index for the "Cancel" button.
|
|
Otherwise, return the index for "OK" (always zero).
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_del_window
|
|
Remove a window, repainting everything else.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to remove.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_does_output
|
|
This is called each time a widget is invoked which may do output.
|
|
It increments \fBdialog_state.output_count\fP,
|
|
so the output function in \fB\*p\fP can test this and add a separator.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_arrows
|
|
Draw up/down arrows on a window, e.g., for scrollable lists.
|
|
It calls \fBdlg_draw_arrows2\fP using the
|
|
\fImenubox_color\fP and \fImenubox_border_color\fP attributes.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIdialog
|
|
is the window on which to draw an arrow.
|
|
.TP 5
|
|
.B int \fItop_arrow
|
|
is true if an up-arrow should be drawn at the top of the window.
|
|
.TP 5
|
|
.B int \fIbottom_arrow
|
|
is true if an down-arrow should be drawn at the bottom of the window.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the zero-based column within the window on which to draw arrows.
|
|
.TP 5
|
|
.B int \fItop
|
|
is the zero-based row within the window on which to draw up-arrows
|
|
as well as a horizontal line to show the window's top.
|
|
.TP 5
|
|
.B int \fIbottom
|
|
is the zero-based row within the window on which to draw down-arrows
|
|
as well as a horizontal line to show the window's bottom.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_arrows2
|
|
Draw up/down arrows on a window, e.g., for scrollable lists.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIdialog
|
|
is the window on which to draw an arrow.
|
|
.TP 5
|
|
.B int \fItop_arrow
|
|
is true if an up-arrow should be drawn at the top of the window.
|
|
.TP 5
|
|
.B int \fIbottom_arrow
|
|
is true if an down-arrow should be drawn at the bottom of the window.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the zero-based column within the window on which to draw arrows.
|
|
.TP 5
|
|
.B int \fItop
|
|
is the zero-based row within the window on which to draw up-arrows
|
|
as well as a horizontal line to show the window's top.
|
|
.TP 5
|
|
.B int \fIbottom
|
|
is the zero-based row within the window on which to draw down-arrows
|
|
as well as a horizontal line to show the window's bottom.
|
|
.TP 5
|
|
.B chtype \fIattr
|
|
is the window's background attribute.
|
|
.TP 5
|
|
.B chtype \fIborderattr
|
|
is the window's border attribute.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_bottom_box
|
|
Draw a partial box at the bottom of a window,
|
|
e.g., to surround a row of buttons.
|
|
It is designed to merge with an existing box around
|
|
the whole window, so it uses tee-elements rather than corner-elements
|
|
on the top corners of this box.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_box
|
|
Draw a rectangular box with line drawing characters.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B int \fIy
|
|
is the top row of the box.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the left column of the box.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the height of the box.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width of the box.
|
|
.TP 5
|
|
.B chtype \fIboxchar
|
|
is used to color the right/lower edges.
|
|
It also is fill-color used for the box contents.
|
|
.TP 5
|
|
.B chtype \fIborderchar
|
|
is used to color the upper/left edges.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_buttons
|
|
Print a list of buttons at the given position.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B int \fIy
|
|
is the starting row.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the starting column.
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int \fIselected
|
|
is the index within the list of the selected button.
|
|
.TP 5
|
|
.B int \fIvertical
|
|
is true if the buttons are arranged in a column rather than a row.
|
|
.TP 5
|
|
.B int \fIlimit
|
|
is the number of columns (or rows if \fIvertical\fP) allowed for the display.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_scrollbar
|
|
If \fBdialog_state.use_scrollbar\fP is set,
|
|
draw a scrollbar on the right margin of windows holding scrollable data.
|
|
Also (whether or not the scrollbar is drawn),
|
|
annotate the bottom margin of the window with the percentage of data
|
|
by the bottom of that window,
|
|
and call \fBdlg_draw_arrows2\fP to put markers on the window showing
|
|
when more data is available.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window in which the data is scrolled.
|
|
Because \fIleft\fP, \fIright\fP, \fItop\fP, \fIbottom\fP
|
|
are passed as parameters, this window can contain additional data.
|
|
.TP 5
|
|
.B long \fIfirst_data
|
|
is the zero-based index to the first row of data in the current window.
|
|
.TP 5
|
|
.B long \fIthis_data
|
|
is the zero-based index to the current row of data.
|
|
.TP 5
|
|
.B long \fInext_data
|
|
is the zero-based index to the next data after the current row.
|
|
.TP 5
|
|
.B long \fItotal_data
|
|
is the total number of rows of data.
|
|
.TP 5
|
|
.B int \fIleft
|
|
is the zero-based left margin/column of the window.
|
|
The up/down arrows are draw inset by 5 columns from this point.
|
|
.TP 5
|
|
.B int \fIright
|
|
is the zero-based right margin/column of the window.
|
|
The scrollbar is drawn flush against this column.
|
|
.TP 5
|
|
.B int \fItop
|
|
is the zero-based row within the window on which to draw up-arrows
|
|
as well as a horizontal line to show the window's top.
|
|
.TP 5
|
|
.B int \fIbottom
|
|
is the zero-based row within the window on which to draw down-arrows
|
|
as well as a horizontal line to show the window's bottom.
|
|
.TP 5
|
|
.B chtype \fIattr
|
|
is the window's background attribute.
|
|
.TP 5
|
|
.B chtype \fIborderattr
|
|
is the window's border attribute.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_shadow
|
|
Draw shadows along the right and bottom edge of a window to give it
|
|
a 3-dimensional look.
|
|
(The height, etc., may not be the same as the window's actual values).
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the height of the window.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width of the window.
|
|
.TP 5
|
|
.B int \fIy
|
|
is the top row of the window.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the left column of the window.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_draw_title
|
|
Draw a title centered at the top of the window.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_dump_keys
|
|
Write all user-defined key-bindings to the given stream,
|
|
e.g., as part of \fBdlg_create_rc\fP.
|
|
.RS
|
|
.TP 5
|
|
.B FILE * \fIfp
|
|
is the stream on which to write the bindings.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_eat_argv
|
|
Remove one or more items from an argument vector.
|
|
.RS
|
|
.TP 5
|
|
.B int *argcp
|
|
in/out parameter giving the length of the argument vector.
|
|
.B char ***argvp
|
|
in/out parameter pointing to the argument vector.
|
|
.B int start
|
|
starting index.
|
|
.B int count
|
|
number of arguments to remove.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_edit_offset
|
|
Given the character-offset in the string,
|
|
returns the display-offset where
|
|
\fB\*p\fP should position the cursor.
|
|
In this context, "characters" may be multicolumn,
|
|
since the string can be a multibyte character string.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIstring
|
|
is the string to analyze
|
|
.TP 5
|
|
.B int \fIoffset
|
|
is the character-offset
|
|
.TP 5
|
|
.B int \fIx_last
|
|
is a limit on the column positions that can be used,
|
|
e.g., the window's size.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_edit_string
|
|
Updates the string and character-offset, given various editing characters
|
|
or literal characters which are inserted at the character-offset.
|
|
Returns true if an editing change was made (and the display should
|
|
be updated), and false if the key was something like KEY_ENTER,
|
|
which is a non-editing action outside this function.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIstring
|
|
is the (multibyte) string to update
|
|
.TP 5
|
|
.B int * \fIoffset
|
|
is the character-offset
|
|
.TP 5
|
|
.B int \fIkey
|
|
is the editing key
|
|
.TP 5
|
|
.B int \fIfkey
|
|
is true if the editing key is a function-key
|
|
.TP 5
|
|
.B bool \fIforce
|
|
is used in a special loop case by calling code to force the return
|
|
value of this function when a function-key code 0 is passed in.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_exit
|
|
Given an internal exit code,
|
|
check if the corresponding environment variable is set.
|
|
If so, remap the exit code to match the environment variable.
|
|
Finally call \fBexit\fP with the resulting exit code.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIcode
|
|
is the internal exit code, e.g., \fBDLG_EXIT_OK\fP,
|
|
which may be remapped.
|
|
.RE
|
|
.IP
|
|
The \fB\*p\fP program uses this function
|
|
to allow shell scripts to remap the exit codes so they can distinguish ESC
|
|
from ERROR.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_exit_buttoncode
|
|
Map the given button index for \fBdlg_exit_label\fP into \fB\*p\fP's exit-code.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIbutton
|
|
is the button index
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_exit_label
|
|
Return a list of button labels.
|
|
If dialog_var.extra_button is true, return the result of \fBdlg_ok_labels\fP.
|
|
Otherwise, return a list with the "Exit" label and (if \fBdialog_vars.help_button\fP
|
|
is set) the "Help" button as well.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_exiterr
|
|
Quit program killing all \fBtailboxbg\fP widgets.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIfmt
|
|
is the format of the \fBprintf\fP-like message to write.
|
|
.TP 5
|
|
.
|
|
are the variables to apply to the \fIfmt\fP format.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_find_index
|
|
Given the character-offset to find in the list, return the corresponding
|
|
array index.
|
|
.RS
|
|
.TP 5
|
|
.B const int *\fIlist
|
|
contains a list of character-offsets,
|
|
i.e., indices into a string that denote the beginning of multibyte characters.
|
|
.TP 5
|
|
.B int \fIlimit
|
|
is the last index into \fBlist\fP to search.
|
|
.TP 5
|
|
.B int \fIto_find
|
|
is the character-offset to find.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_flush_getc
|
|
Cancel the local data saved by \fBdlg_last_getc\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.IP dlg_editbox
|
|
This entrypoint provides the \fB--editbox\fP
|
|
functionality without the limitations of \fB\*p\fP's command-line syntax
|
|
(compare to \fBdialog_editbox\fP).
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B char *** \fIlist
|
|
is a pointer to an array of \fBchar\ *\fP pointers.
|
|
The array is allocated by the caller,
|
|
and so are the strings to which it points.
|
|
The \fBdlg_editbox\fP function may reallocate the
|
|
array and the strings.
|
|
.TP 5
|
|
.B int * \fIrows
|
|
points to the nominal length of \fIlist\fP.
|
|
The referenced value is updated if\fIlist\fP is reallocated.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_form
|
|
This entrypoint provides the \fB--form\fP
|
|
functionality without the limitations of \fB\*p\fP's command-line syntax
|
|
(compare to \fBdialog_form\fP).
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B const char * \fIcprompt
|
|
is the prompt text shown within the widget.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIform_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP.
|
|
.TP 5
|
|
.B DIALOG_FORMITEM * \fIitems
|
|
This is a list of the items to display in the form.
|
|
.TP 5
|
|
.B int * \fIcurrent_item
|
|
The widget sets the referenced location to the index of the current display
|
|
item (cursor) when it returns.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_free_columns
|
|
Free data allocated by \fBdlg_align_columns\fP.
|
|
.RS
|
|
.TP 5
|
|
.B char **\fItarget
|
|
This is the array which was reformatted.
|
|
It points to the first string to free.
|
|
.TP 5
|
|
.B int \fIper_row
|
|
This is the size of the struct for each row of the array.
|
|
.TP 5
|
|
.B int \fInum_rows
|
|
This is the number of rows in the array.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_free_formitems
|
|
Free memory owned by a list of DIALOG_FORMITEM's.
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_FORMITEM * \fIitems
|
|
is the list to free.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_getc
|
|
Read a character from the given window.
|
|
Handle repainting here (to simplify
|
|
things in the calling application).
|
|
Also, if input-callback(s) are set up,
|
|
poll the corresponding files and handle the updates,
|
|
e.g., for displaying a tailbox.
|
|
Returns the key-code.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window within which to read.
|
|
.TP 5
|
|
.B int * \fIfkey
|
|
as a side-effect, set this to true if the key-code is really a function-key.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_get_attrs
|
|
extract the video attributes from the given window.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window from which to get attributes.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_getc_callbacks
|
|
passes the given key-code \fIch\fP to the current window that
|
|
has established a callback.
|
|
If the callback returns zero, remove it and try the next window.
|
|
If no more callbacks remain, return.
|
|
If any callbacks were found, return true, otherwise false.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIch
|
|
is the key-code
|
|
.TP 5
|
|
.B int \fIfkey
|
|
is true if the key is a function-key
|
|
.TP 5
|
|
.B int * \fIresult
|
|
is used to pass an exit-code to the caller,
|
|
which should pass that via \fBdlg_exit\fP.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_index_columns
|
|
Build a list of the display-columns for the given multibyte string's characters.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to analyze
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_index_wchars
|
|
Build an index of the wide-characters in the string,
|
|
so the caller can easily tell
|
|
which byte-offset begins a given wide-character.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to analyze
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_item_help
|
|
Draw the string for the \fBdialog_vars.item_help\fP feature.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItxt
|
|
is the help-message
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_killall_bg
|
|
If \fB\*p\fP has callbacks active,
|
|
purge the list of all that are not marked
|
|
to keep in the background.
|
|
If any remain, run those in a background process.
|
|
.RS
|
|
.TP 5
|
|
.B int * \fIretval
|
|
stores the exit-code to pass back to the caller.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_last_getc
|
|
returns the most recent character that was read via \fBdlg_getc\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_limit_columns
|
|
Given a column limit,
|
|
count the number of wide characters that can fit into that limit.
|
|
The offset is used to skip over a leading character
|
|
that was already written.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to analyze
|
|
.TP 5
|
|
.B int \fIlimit
|
|
is the column limit
|
|
.TP 5
|
|
.B int \fIoffset
|
|
is the starting offset from which analysis should continue
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_lookup_key
|
|
Check for a key-binding.
|
|
If there is no binding associated with the widget, it simply returns
|
|
the given curses-key.
|
|
Otherwise, it returns the result of the binding
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window on which the binding is checked
|
|
.TP 5
|
|
.B int \fIcurses_key
|
|
is the curses key-code
|
|
.TP 5
|
|
.B int * \fIdialog_key
|
|
is the corresponding \fB\*p\fP internal code
|
|
(see \fBDLG_KEYS_ENUM\fP in dlg_key.h).
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_max_input
|
|
Limit the parameter according to \fBdialog_vars.max_input\fP
|
|
.RS
|
|
.TP 5
|
|
.B int \fImax_len
|
|
is the value to limit
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_match_char
|
|
Match a given character against the beginning of the string,
|
|
ignoring case of the given character.
|
|
The matching string must begin with an uppercase character.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIch
|
|
is the character to check
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to search
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_menu
|
|
This entrypoint provides the \fB--menu\fP
|
|
functionality without the limitations of \fB\*p\fP's command-line syntax
|
|
(compare to \fBdialog_menu\fP).
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fItitle
|
|
is the title string to display at the top of the widget.
|
|
.TP 5
|
|
.B const char * \fIcprompt
|
|
is the prompt text shown within the widget.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the desired height of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the desired width of the box.
|
|
If zero, the height is adjusted to use the available screen size.
|
|
.TP 5
|
|
.B int \fImenu_height
|
|
is the minimum height to reserve for displaying the list.
|
|
If zero, it is computed based on the given \fIheight\fP and \fIwidth\fP.
|
|
.TP 5
|
|
.B int \fIitem_no
|
|
is the number of \fIitems\fP.
|
|
.TP 5
|
|
.B DIALOG_LISTITEM * \fIitems
|
|
This is a list of the items to display in the form.
|
|
.TP 5
|
|
.B int * \fIcurrent_item
|
|
The widget sets the referenced location to the index of the current display
|
|
item (cursor) when it returns.
|
|
.TP 5
|
|
.B DIALOG_INPUTMENU \fIrename_menutext
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_move_window
|
|
Moves/resizes the given window to the given position and size.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW *\fIwin
|
|
is the window to move/resize.
|
|
.TP 5
|
|
.B WINDOW *\fIheight
|
|
is the height of the resized window.
|
|
.TP 5
|
|
.B WINDOW *\fIwidth
|
|
is the width of the resized window.
|
|
.TP 5
|
|
.B WINDOW *\fIy
|
|
y-ordinate to use for the repositioned window.
|
|
.TP 5
|
|
.B WINDOW *\fIx
|
|
x-ordinate to use for the repositioned window.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_bigregion
|
|
Retrieve the big-region under the pointer.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIy
|
|
is the row on which the mouse click occurred
|
|
.TP 5
|
|
.B int \fIx
|
|
is the column on which the mouse click occurred
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_free_regions
|
|
Free the memory associated with mouse regions.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_mkbigregion
|
|
Creates a region on which the mouse-clicks will return a specifed code.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIy
|
|
is the top-row of the region.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the left-column of the region.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the height of the region.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width of the region.
|
|
.TP 5
|
|
.B int \fIcode
|
|
is a code used to make the region unique within a widget
|
|
.TP 5
|
|
.B int \fIstep_x
|
|
is used in modes 2 (columns) and 3 (cells) to determine the width
|
|
of a column/cell.
|
|
.TP 5
|
|
.B int \fIstep_y
|
|
is currently unused
|
|
.TP 5
|
|
.B int \fImode
|
|
is used to determine how the mouse position is translated into
|
|
a code (like a function-key):
|
|
.RS
|
|
.TP
|
|
1
|
|
index by lines
|
|
.TP
|
|
2
|
|
index by columns
|
|
.TP
|
|
3
|
|
index by cells
|
|
.RE
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_mkregion
|
|
.RS
|
|
.TP 5
|
|
.B int \fIy
|
|
is the top-row of the region.
|
|
.TP 5
|
|
.B int \fIx
|
|
is the left-column of the region.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the height of the region.
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width of the region.
|
|
.TP 5
|
|
.B int \fIcode
|
|
is a code used to make the region unique within a widget
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_region
|
|
Retrieve the frame under the mouse pointer
|
|
.RS
|
|
.TP 5
|
|
.B int \fIy
|
|
is the row of the mouse-click
|
|
.TP 5
|
|
.B int \fIx
|
|
is the column of the mouse-click
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_setbase
|
|
Sets a base for subsequent calls to \fBdlg_mouse_mkregion\fP,
|
|
so they can make regions relative to the start of a given window.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIx
|
|
is the left-column for the base
|
|
.TP 5
|
|
.B int \fIy
|
|
is the top-row for the base
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_wgetch
|
|
is a wrapper for \fBdlg_getc\fP which additionally maps mouse-clicks
|
|
(if the curses library supports those) into extended function-keys
|
|
which encode the position according to the \fImode\fP in
|
|
\fBdlg_mouse_mkbigregion\fP.
|
|
Returns the corresponding key-code.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window on which to perform the input
|
|
.TP 5
|
|
.B int * \fIfkey
|
|
the referenced location is set to true if the key-code is an actual
|
|
or extended (mouse) function-key.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_mouse_wgetch_nowait
|
|
This is a non-blocking variant of \fBdlg_mouse_wgetch\fP.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window on which to perform the input
|
|
.TP 5
|
|
.B int * \fIfkey
|
|
the referenced location is set to true if the key-code is an actual
|
|
or extended (mouse) function-key.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_need_separator
|
|
Check if an output-separator is needed.
|
|
If \fBdialog_vars.output_separator\fP is set, return true.
|
|
Otherwise, if \fBdialog_vars.input_result\fP is nonempty, return true.
|
|
If neither, return false.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_new_modal_window
|
|
Create a modal window, optionally with a shadow.
|
|
The shadow is created if \fBdialog_state.use_shadow\fP is true.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIparent
|
|
is the parent window (usually the top-level window of a widget)
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the window's height
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the window's width
|
|
.TP 5
|
|
.B int \fIy
|
|
is the window's top-row
|
|
.TP 5
|
|
.B int \fIx
|
|
is the window's left-column
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_new_window
|
|
Create a window, optionally with a shadow.
|
|
The shadow is created if \fBdialog_state.use_shadow\fP is true.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the window's height
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the window's width
|
|
.TP 5
|
|
.B int \fIy
|
|
is the window's top-row
|
|
.TP 5
|
|
.B int \fIx
|
|
is the window's left-column
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_next_button
|
|
Return the next index in the list of labels.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int \fIbutton
|
|
is the current button-index.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_next_ok_buttonindex
|
|
Assuming that the caller is using \fBdlg_ok_labels\fP to list buttons,
|
|
find the next index in the list of buttons.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIcurrent
|
|
is the current index in the list of buttons
|
|
.TP 5
|
|
.B int \fIextra
|
|
if negative, provides a way to enumerate extra active areas on the widget.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_ok_buttoncode
|
|
Map the given button index for \fBdlg_ok_labels\fP
|
|
into \fB\*p\fP's exit-code.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIbutton
|
|
is the button-index (which is not necessarily the same as the index
|
|
in the list of labels).
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_ok_label
|
|
Returns a list with the "Ok" label,
|
|
and if \fBdialog_vars.help_button\fP is true, the "Help" label as well.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_ok_labels
|
|
Return a list of button labels for the OK/Cancel group of widgets.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_ordinate
|
|
Decode the string as an integer, decrement if greater than zero to make
|
|
a curses-ordinate from a dialog-ordinate.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_parse_bindkey
|
|
Parse the parameters of the "bindkeys" configuration-file entry. This
|
|
expects widget name which may be "*", followed by curses key definition and
|
|
then \fB\*p\fP key definition.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIparams
|
|
is the parameter string to parse.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_parse_rc
|
|
Parse the configuration file and set up variables.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_prev_button
|
|
Return the previous index in the list of labels.
|
|
.RS
|
|
.TP 5
|
|
.B const char ** \fIlabels
|
|
is a list of (pointers to) button labels terminated by a null pointer.
|
|
.TP 5
|
|
.B int \fIbutton
|
|
is the current button index
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_print_scrolled
|
|
This is a wrapper for \fBdlg_print_autowrap\fP which allows the user
|
|
to scroll too-long prompt text up/down.
|
|
.IP
|
|
See \fBdlg_check_scrolled\fP for a function which updates the \fIoffset\fP
|
|
variable used as a parameter here.
|
|
It complements this function; you need both.
|
|
If \fIpauseopt\fP is set, this function returns an updated \fIlast\fP
|
|
parameter, needed for \fBdlg_check_scrolled\fP calls.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B const char * \fIprompt
|
|
is the string to print
|
|
.TP 5
|
|
.B int \fIoffset
|
|
is the starting line-number to write wrapped text.
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the available height for writing the wrapped text
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width that the wrapping should occur in
|
|
.TP 5
|
|
.B int \fIpauseopt
|
|
is true if the extra functionality for scrolling should be enabled.
|
|
If false, this calls \fBdlg_print_autowrap\fP without doing any scrolling.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_print_line
|
|
Print one line of the prompt in the window within the limits of the
|
|
specified right margin.
|
|
The line will end on a word boundary and a pointer
|
|
to the start of the next line is returned, or a NULL pointer if the end of
|
|
*prompt is reached.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW *\fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B chtype *\fIattr
|
|
holds the starting attributes, and is updated to reflect the final attributes
|
|
applied to the string.
|
|
.TP 5
|
|
.B const char *\fIprompt
|
|
is the string to print
|
|
.TP 5
|
|
.B int \fIlm
|
|
is the left margin.
|
|
.TP 5
|
|
.B int \fIrm
|
|
is the right margin
|
|
.TP 5
|
|
.B int *\fIx
|
|
returns the ending x-ordinate.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_prev_ok_buttonindex
|
|
Find the previous button index in the list from \fBdlg_ok_labels\fP.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIcurrent
|
|
is the current index
|
|
.TP 5
|
|
.B int \fIextra
|
|
if negative provides a way to enumerate extra active areas on the widget.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_print_autowrap
|
|
Print a string of text in a window, automatically wrap around to the next
|
|
line if the string is too long to fit on one line.
|
|
Note that the string may contain embedded newlines.
|
|
The text is written starting at the top of the window.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B const char * \fIprompt
|
|
is the string to print
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the nominal height the wrapped string is limited to
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the width that the wrapping should occur in
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_print_size
|
|
If \fBdialog_vars.print_siz\fP is true,
|
|
print the given height/width (from a widget)
|
|
to \fBdialog_state.output\fP, e.g.,
|
|
\fBSize: height, width\fP.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the window's height
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the window's width
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_print_text
|
|
Print up to \fIcols\fP columns from \fBtext\fP,
|
|
optionally rendering \fB\*p\fP's escape sequences for attributes and color.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window to update.
|
|
.TP 5
|
|
.B const char * \fItxt
|
|
is the string to print
|
|
.TP 5
|
|
.B int \fIcol
|
|
is the column limit
|
|
.TP 5
|
|
.B chtype * \fIattr
|
|
holds the starting attributes, and is updated to reflect the final attributes
|
|
applied to the string.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.B dlg_progressbox
|
|
implements the "\fB--prgbox\fP" and "\fB--progressbox\fP" options.
|
|
.RS
|
|
.IP title
|
|
is the title on the top of the widget.
|
|
.IP cprompt
|
|
is the prompt text shown within the widget.
|
|
If empty or null, no prompt is shown.
|
|
.IP height
|
|
is the desired height of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP width
|
|
is the desired width of the box.
|
|
If zero, the height is based on the screen size.
|
|
.IP pauseopt
|
|
if true, an "OK" button will be shown,
|
|
and the dialog will wait for it to complete.
|
|
With an "OK" button, it is denoted a "programbox",
|
|
without an "OK" button, it is denoted a "progressbox".
|
|
.IP fp
|
|
is the file pointer, which may be a pipe or a regular file.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_put_backtitle
|
|
Display the background title if \fBdialog_vars.backtitle\fP is non-null.
|
|
The background title is shown at the top of the screen.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_register_buttons
|
|
The widget developer should call this function after \fBdlg_register_window\fP,
|
|
for the list of button labels associated with the widget.
|
|
One may bind a key to a button, e.g., "OK" for \fBDLGK_OK\fP,
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window with which to associate the buttons
|
|
.TP 5
|
|
.B const char * \fIname
|
|
is the widget's binding name (usually the name of the widget).
|
|
.TP 5
|
|
.B const char ** \fIbuttons
|
|
is the list of buttons
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_register_window
|
|
For a given named widget's window, associate a binding table.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window with which to associate the buttons
|
|
.TP 5
|
|
.B const char * \fIname
|
|
is the widget's binding name (usually the name of the widget).
|
|
.TP 5
|
|
.B DLG_KEYS_BINDING * \fIbinding
|
|
is the binding table
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_remove_callback
|
|
Remove a callback.
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_CALLBACK \fI* p
|
|
contains the callback information.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_restore_vars
|
|
Restore \fB\*p\fP's variables from the given variable (see \fBdialog_save_vars\fP).
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_VARS * \fIsave
|
|
is the variable from which to restore.
|
|
.RE
|
|
.IP
|
|
The
|
|
\fIDIALOG_VARS.input_length\fP and
|
|
\fIDIALOG_VARS.input_result\fP members are treated specially,
|
|
since these are used by a widget to pass data to the caller.
|
|
They are not modified by this function.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_result_key
|
|
Test a \fB\*p\fP internal keycode to see if it corresponds to one of the push
|
|
buttons on the widget such as "OK".
|
|
This is only useful if there are user-defined key bindings, since there are
|
|
no built-in bindings that map directly to \fBDLGK_OK\fP, etc.
|
|
Return true if a mapping was done.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIdialog_key
|
|
is the \fB\*p\fP key to test
|
|
.TP 5
|
|
.B int \fIfkey
|
|
is true if this is a function key
|
|
.TP 5
|
|
.B int * \fIresultp
|
|
store the result of the mapping in the referenced location.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_save_vars
|
|
Save \fB\*p\fP's variables into the given variable (see \fBdialog_restore_vars\fP).
|
|
.RS
|
|
.TP 5
|
|
.B DIALOG_VARS * \fIsave
|
|
is the variable into which to save.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_set_focus
|
|
Set focus on the given window,
|
|
making it display above other windows on the screen.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIparent
|
|
is the parent window (usually the top-level window of a widget)
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window on which to place focus (usually a subwindow of a widget)
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_set_result
|
|
Setup a fixed-buffer for the result in \fBdialog_vars.input_result\fP
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the new contents for the result
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_show_string
|
|
Displays the string, shifted as necessary, to fit within the box and show
|
|
the current character-offset.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window within which to display
|
|
.TP 5
|
|
.B const char * \fIstring
|
|
is the string to display
|
|
.TP 5
|
|
.B int \fIoffset
|
|
is the starting (character, not bytes) offset
|
|
.TP 5
|
|
.B chtype \fIattr
|
|
is the window attribute to use for the string
|
|
.TP 5
|
|
.B int \fIy_base
|
|
beginning row on screen
|
|
.TP 5
|
|
.B int \fIx_base
|
|
beginning column on screen
|
|
.TP 5
|
|
.B int \fIx_last
|
|
number of columns on screen
|
|
.TP 5
|
|
.B bool \fIhidden
|
|
if true, do not echo input
|
|
.TP 5
|
|
.B bool \fIforce
|
|
if true, force repaint
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_strclone
|
|
duplicate the string, like \fBstrdup\fP.
|
|
.RS
|
|
.TP 5
|
|
.B const char * \fIcprompt
|
|
is the string to duplicate
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_strcmp
|
|
compare two strings, ignoring case.
|
|
.RS
|
|
.TP 5
|
|
.B const char \fI* a
|
|
is one string
|
|
.TP 5
|
|
.B const char \fI* b
|
|
is the other string
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_string_to_argv
|
|
Convert a string to an argument vector
|
|
returning an index (which must be freed by the caller).
|
|
The string is modified (replacing gaps between tokens with nulls).
|
|
.RS
|
|
.TP 5
|
|
.B char *\fIblob
|
|
is the string to convert.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_sub_window
|
|
create a subwindow, e.g., for an input area of a widget
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the parent window
|
|
.TP 5
|
|
.B int \fIheight
|
|
is the subwindow's height
|
|
.TP 5
|
|
.B int \fIwidth
|
|
is the subwindow's width
|
|
.TP 5
|
|
.B int \fIy
|
|
is the subwindow's top-row
|
|
.TP 5
|
|
.B int \fIx
|
|
is the subwindow's left-column
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_tab_correct_str
|
|
If the \fBdialog_vars.tab_correct\fP is true, convert tabs to single spaces.
|
|
Return the converted result.
|
|
The caller is responsible for freeing the string.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIprompt
|
|
is the string to convert
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_trace
|
|
If the parameter is non-null, opens a trace file with that
|
|
name and stores the file pointer in \fBdialog_state.trace\fP.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_trace_chr
|
|
If \fBdialog_state.trace\fP is set,
|
|
translate the parameters into a printable representation,
|
|
log it on a "chr" line.
|
|
.RS
|
|
.TP 5
|
|
.B int ch
|
|
is the nominal keycode value.
|
|
.TP 5
|
|
.B int fkey
|
|
is nonzero if the value is really a function key.
|
|
Some of these may be values declared in the DLG_KEYS_ENUM.
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_trace_win
|
|
If \fBdialog_state.trace\fP is set,
|
|
log a printable picture of the given window.
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_trim_string
|
|
Change embedded "\\n" substrings to '\\n' characters and tabs to single spaces.
|
|
If there are no "\\n"s, the function strips all extra spaces, for justification.
|
|
If it has "\\n"'s, the function preserves extra spaces.
|
|
If \fBdialog_vars.cr_wrap\fP is set, the function preserves '\\n's.
|
|
.RS
|
|
.TP 5
|
|
.B char * \fIsrc
|
|
is the string to trim
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_unregister_window
|
|
Remove the bindings for a given window.
|
|
.RS
|
|
.TP 5
|
|
.B WINDOW * \fIwin
|
|
is the window from which to remove bindings
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_yes_buttoncode
|
|
Map the given button index for \fBdlg_yes_labels\fP into \fB\*p\fP's exit-code.
|
|
.RS
|
|
.TP 5
|
|
.B int \fIbutton
|
|
is the button index
|
|
.RE
|
|
.\" ---------------------------------------------------------------------------
|
|
.TP 5
|
|
.B dlg_yes_labels
|
|
Return a list of buttons for Yes/No labels.
|
|
.
|
|
.\" ************************************************************************
|
|
.SH SEE ALSO
|
|
\fB\*p\fP (1).
|
|
.
|
|
.\" ************************************************************************
|
|
.SH AUTHOR
|
|
Thomas E. Dickey
|