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#!/usr/bin/env perl
# $XTermId: mouse-codes,v 1.7 2020/12/13 15:07:02 tom Exp $
# -----------------------------------------------------------------------------
# this file is part of xterm
#
# Copyright 2018-2019,2020 by Thomas E. Dickey
#
# All Rights Reserved
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name(s) of the above copyright
# holders shall not be used in advertising or otherwise to promote the
# sale, use or other dealings in this Software without prior written
# authorization.
# -----------------------------------------------------------------------------
# Imitate xterm's BtnCode() function, to enumerate the possible inputs (button,
# event state) versus output (xterm mouse-code).
use strict;
use warnings;
use Getopt::Std;
our ( $opt_b, $opt_i, $opt_x );
# Typically,
# - Buttons 1, 2, and 3 are left-to-right assignments on a 3-button mouse.
# - Buttons 4 and 5 are (by convention) assigned to a wheel mouse's
# up/down events.
# - Buttons 6 and 7 may happen to work, e.g., as left/right events from a
# tiltable wheel mouse. There is no explicit support for these (there
# are no related symbols in Xt), so it is not possible to use them in the
# translations resource.
our $maxbutton = 7;
# xterm uses code 3 internally for release-events.
sub ButtonName($) {
my $code = shift;
my $result = "";
if ( $code < 0 ) {
$result = "release";
}
else {
$result = sprintf "Button%d", ( $code > 3 ) ? $code : ( $code + 1 );
}
return $result;
}
# Combine the modifier state as bits:
# shift key -> 1
# meta key -> 2 (Mod1 came from X11R1, but was adapted from X10)
# control key -> 4
our $maxstates = 7;
sub KeyState($) {
my $mask = shift;
my $result = "";
$result .= " + shift" if ( ( $mask & 1 ) != 0 );
$result .= " + meta" if ( ( $mask & 2 ) != 0 );
$result .= " + control" if ( ( $mask & 4 ) != 0 );
return $result;
}
sub Motion($) {
my $code = shift;
my $result = "";
$result = " + motion" if ( $code != 0 );
return $result;
}
sub report() {
my $button;
my $states;
my $motion;
my %encoded;
my %reports;
for $states ( 0 .. $maxstates ) {
for $motion ( 0 .. 1 ) {
for $button ( -1 .. $maxbutton ) {
next if ( $button == 3 );
my $result = ( 32 + ( $states << 2 ) );
$result += 32 if ( $motion != 0 );
if ( $button < 0 ) {
$result += 3;
}
else {
$result += $button & 3;
if ( $button & 4 ) {
$result += 64;
}
if ( $button & 8 ) {
$result += 128;
}
}
my $code = sprintf "%3d", $result;
my $report = sprintf "%s%s%s", &ButtonName($button),
&KeyState($states), &Motion($motion);
if ( defined $encoded{$code} ) {
printf "OOPS %s ->%s versus %s\n", $code, $report,
$encoded{$code};
}
elsif ( $result > 255 and not defined $opt_x ) {
printf "OOPS %s ->%s\n", $code, $report;
}
$encoded{$code} = $report;
$reports{$report} = $result;
}
}
}
if ($opt_i) {
foreach my $report ( sort keys %reports ) {
printf "%s = %s\n", $report, $reports{$report};
}
}
else {
foreach my $code ( sort keys %encoded ) {
printf "%s = %s\n", $code, $encoded{$code};
}
}
}
sub main::HELP_MESSAGE() {
printf STDERR <<EOF
Usage: $0 [options]
Options:
-b NUM set the number of buttons (default: 7)
-i invert the report to show code for each combination
-x eliminate 1-byte limit for codes
EOF
;
exit 1;
}
$Getopt::Std::STANDARD_HELP_VERSION = 1;
&getopts('b:ix') || &main::HELP_MESSAGE;
$maxbutton = $opt_b if ( defined $opt_b );
&main::HELP_MESSAGE if ( $maxbutton !~ /^\d+$/ );
$#ARGV < 0 || &main::HELP_MESSAGE;
&report;
1;
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