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Hi,
I would like comments on a stand alone Perl program for administering
accessibility settings. It invokes two programs from the Blinux site and
one from metalab.unc.edu. They are volume, SVGATextMode, and locktones -
which you will need to download.
Here is the code; I'll send both clear text and an attachment just in
case the clear text has a white space reformat problem.
(See attached file: console.510)
#!/usr/bin/perl
# Author Michael R Cross September 26, 1001 11:35 AM
# -e favorite.vol && die( ... );
# This program presents a menu of console mode access
# options. These options are as follows:
# 1. set Defaults
# 2. volume control
# 3. SVGATextMode large fonts
# 4. Locked Tones
# 5. foreground Background color changes
# NOTES:
# 1. Unpack volume-2.1.tar.gz in /usr/bin
# rpm install locktones
# rpm install SVGATextMode
###############################################
# main Accessibility For The Linux Console
###############################################
{
# array colors
@colors =
( black, red, green, brown, blue, magenta, cyan,
gray, dark_gray, light_red, light_green, yellow,
light_blue, light_magenta, light_cyan, white, not_set);
# end array definition
system("clear");
print "September 26, 2001 11:35 AM \n";
print "Welcome To the Console Accessibility Tool\n";
print "You should be logged in as root to run this program!\n";
print "if you are not, quit this program and login again.\n";
# print "again.\n\n";
$ret1 = &catch_your_breath();
do # while
{
print "Main Menu: Select an item & press enter.\n";
print "Your options are\n";
print " 1 for restore all Defaults.\n";
print " 2 for Volume controls. \n";
$volume_path ="/bin/volume_2.1";
print " 3 for font menu. \n";
print " 4 for lock Tones. \n";
$tone_path ="/usr/bin";
print " 5 for Foreground Background Changes.\n";
print " 6 for readme text. \n";
$font_path ="/usr/sbin";
print " q to quit this program.\n";
print " r to repeat this menu.\n";
print "Type your choice & press Enter now!\n";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
# print "in_key is \<$in_key\>\n";
system( "clear" );
if( $in_key == 1 )
{
system("locktones" );
$ret = &small_font();
$ret = &init_vol();
print "\033[33;1m\n"; # yellow foreground
print "\033[40m\n"; # black background
}
elsif( $in_key == 2 )
{
$ret1 = &change_volume();
}
elsif( $in_key == 3 ) # fonts
{
# Select from a menu of fonts of different sizes.
$ret1 = &font_menu();
}
elsif( $in_key == 4 )
{
# Set tones to sound when you touch caps lock, num lock, & scroll lock.
system( "clear" );
print " Note about locktone:\n";
print "locktones will play a tone if you \n";
print "touch Caps Lock, Num Lock, or Scroll \n";
print "Lock.\n";
print " End Of Note:\n";
print " Do you want to set up these tones? y/n\n";
$in_key = <STDIN>;
$ret = &strip_white_space();
if(($in_key eq "y") || ($in_key eq "Y"))
{
system( "locktones" );
print "locktones have now been set up.";
}
else
{
print "locktones were not set up.";
}
}
elsif( $in_key == 5 ) # background foreground changess
{
# foreground Background color change tool.
$ret1 = &change_color_scheme();
}
elsif ($in_key == 6 ) # read me text
{
# Info about URLs, directories, and installing.
$ret = &readme();
} # end if select a function
# elsif( $in_key =~ /\e/ )
} while( $in_key ne "q" );
print "\n\n Ssend Comments to mrcross\@us.ibm.com \n\n";
$ret = &exit_program();
} # end main program
###############################################
# change_volume
#################################################
sub change_volume
{
$delta_v = 20; # change per keystroke
$top_v = 240; # max volume
system( "clear" );
$old_v = 50;
$cannot_open = 0; # false
unless( open( FAVORITEVOL, "/bin/favorite.vol") ) {
# die("Cannot open file: /bin/favorite.vol.\n\n");
$cannot_open = 1; # true
$ret = &init_vol();
}
if( $cannot_open == 0 )
{
$old_v = <FAVORITEVOL>;
chop( $old_v );
close( FAVORITEVOL );
} # end if cannot_open == 0
print "Your current volume setting is $old_v.\n";
$new_v = $old_v; # starting volume
$cmd = "volume_path/volume -l ".$new_v." -r ".$new_v;
# print "cmd is \<$cmd\>.\n";
system( $cmd ); # execute the command
$final_change = 0; # false
print "Volume Control Menu:\n";
print "To return to the Main Menu press m and\n";
print "enter. The old volume will be restored.\n";
print "To exit the program press q and\n";
print "enter. The old volume will be restored.\n";
print " Each time you press d and enter\n";
print "the volume will be decreased.\n";
print " Each time you press i and enter\n";
print "the volume will be increased.\n";
print "When finished changing volume press \n";
print "enter by itself.\n";
while( $final_change == 0 )
{
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
# print "in_key \<$in_key\>\n";
system( "clear" ); # clear screen
if( $in_key eq "i")
{
$new_v += $delta_v;
if( $new_v > $top_v )
{
$new_v = $top_v;
}
print "volume is $new_v.\n";
$cmd = "/bin/volume-2.1/volume -l ".$new_v." -r ".$new_v;
# print "cmd is \<$cmd\>\n";
system( $cmd ); # execute the command
}
elsif( $in_key eq "d" )
{
$new_v -= $delta_v;
if( $new_v < $delta_v )
{
$new_v = $delta_v;
}
print "volume is $new_v.\n";
$cmd = "/bin/volume-2.1/volume -l ".$new_v." -r ".$new_v;
# print "cmd is \<$cmd\>\n";
system( $cmd ); # execute the command
}
elsif( $in_key eq "" ) # enter by itself
{
$final_change = 1;
print "Your Final Volume is $new_v.\n";
$final_change = 1;
print "Do you want $new_v to be your volume setting? y/n ";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
if(($in_key eq "y") || ($in_key eq "Y"))
{
system( "rm /bin/favorite.vol" );
unless( open( FAVORITEVOL, ">/bin/favorite.vol") ) {
die("Cannot open file: /bin/favorite.vol!\n\n");
}
print FAVORITEVOL "$new_v\n";
print "Save new volume setting $new_v in /bin/favorite.vol.\n\n";
} # end if saving new volume setting
}
elsif( $in_key eq "m" ) # return to main menu
{
$final_change = 1;
$cmd = "/bin/volume-2.1/volume -l ".$old_v." -r ".$old_v;
system( $cmd ); # execute the command
}
elsif( $in_key eq "q" ) # exit program
{
$final_change = 1;
$cmd = "/bin/volume-2.1/volume -l ".$old_v." -r ".$old_v;
system( $cmd ); # execute the command
$ret = &exit_program();
} # end volume execute branch
} # end while not final_change
} # end subroutine change_volume
##############################################
# init_vol initialize volume to 50 and save it
################################################
sub init_vol
{
system("volume -l 40 -r 40" );
system("rm /bin/favorite.vol" );
unless( open( FAVORITEVOL, ">/bin/favorite.vol") ) {
die("Cannot open file: /bin/favorite.vol!\n\n");
}
$new_v = 40;
print FAVORITEVOL "$delta_v\n";
print "SavING volume 40 in /bin/favorite.vol.\n\n";
} # end sub routine set_vol
##############################################
# font_menu choice of 5 fonts of dirrerence sizes
###############################################
sub font_menu
{
$old_f = "80x25";
$cannot_open == 0; # false
unless( open( FAVORITEFON, "/usr/sbin/favorite.fon") ) {
$ret = &small_font();
$cannot_open == 1; # true
}
if( $cannot_open == 0 )
{
$old_f = <FAVORITEFON>;
chop( $old_f );
close( FAVORITEFON );
} # end if cannot_open == 0
system( "SVGATextMode $old_f" );
do # while
{
system( "clear" );
print "Current font is $old_f.\n";
print "Select a font then press enter.\n";
print "Your options are\n";
print "1 for the 80x25 font. \n";
print "2 for the 40x12x8 font. \n";
print "3 for the 40x12x9 font. \n";
print "4 for the 40x15x8 font. \n";
print "5 for the 40x15x9 font. \n";
print "m to return to Main Menu.\n";
print "q to exit the program.\n";
print "r to repeat this menu.\n";
print "Select an item and press Enter now!\n";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
$valid_font = 1; # yes
if( $in_key == 1 )
{
system( "SVGATextMode 80x25" );
$new_f = "80x25";
}
elsif( $in_key == 2 )
{
system( "SVGATextMode 40x12x8" );
$new_f = "40x12x8";
}
elsif( $in_key == 3 )
{
system( "SVGATextMode 40x12x9" );
$new_f = "40x12x9";
}
elsif( $in_key == 4 )
{
system( "SVGATextMode 40x15x8" );
$new_f = "40x15x8";
}
elsif( $in_key == 5 )
{
system( "SVGATextMode 40x15x9" );
$new_f = "40x15x9";
}
elsif( $in_key eq "m" ) # return to main menu
{
$valid_font = 0; # no
# system( "SVGATextMode $old_f" );
}
elsif( $in_key eq "q" ) # exit program
{
$valid_font = 0; # no
# system( "SVGATextMode $old_f" );
} # end if pick a new font
system( "clear" );
if( $valid_font == 1 )
{
print "Do you want $new_f to be your font setting? y/n ";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
# print "in_key is \<$in_key\>.n";
if(($in_key eq "y") || ($in_key eq "Y"))
{
system( "rm /usr/sbin/favorite.fon" );
unless( open( FAVORITEFON, ">/usr/sbin/favorite.fon") ) {
die("Cannot open file: /usr/sbin/favorite.fon! \n\n");
}
print FAVORITEFON "$new_f\n";
print "Saving new font setting $new_f in /usr/sbin/favorite.fon.\n\n";
$old_f = $new_f;
}
else # do not save new font
{
system( "SVGATextMode $old_f" );
} # end if saving new font setting
} # end if $valid_font == 1 yes
system( "clear" );
} while(($in_key ne "m") && ($in_key ne "q") );
if( $in_key eq "q" ) # exit program
{
# system( "SVGATextMode $old_f" );
$ret = &exit_program();
} # end if quit this menu
} # end subroutine font_menu
##############################################
# small_font to 80x25 and save it
################################################
sub small_font
{
system("SVGATextMode 80x25" );
# system("rm /usr/sbin/favorite.fon" );
unless( open( FAVORITEFON, ">/usr/sbin/favorite.fon") ) {
die("Cannot open file: /usr/sbin/favorite.fon!\n\n");
}
print FAVORITEFON "80x25\n";
print "Save Font 80x25 in /usr/sbin/favorit4.fon.\n\n";
} # end subroutine small_font
##############################################
# readme show urls and install paths
################################################
sub readme
{
system("clear" );
print "Download volume from \n";
print " ftp://metalab.unc.edu/pub/Linux/apps/sound/soundcard/.\n";;
print "When untarred it creates directory \n";
print "volume-2.1. \n";
print " The URL for locktones & SVGATextmode is:\n";
print " http://leb.net/pub/blinux/.\n";;
print "To install type the following:\n";
print " rpm -i SVGATextMode*.rpm and press enter.\n";
print " rpm -i locktones*.rpm and press enter.\n";
print "The SVGATextMode binary will be put at /usr/sbin.\n\n";
print "The locktones binary will be put in two places:\n";
print " /usr/bin and /bin\n\n";
print " SVGA Text Mode is very talkative.\n";
print "In /etc/Textconfig, delete all lines\n";
print "starting with the word echo. \n";
print " If you start Emacspeak and pick the\n";
print "option to change colors, the color \n";
print "choices are saved in the favorites \n";
print "files but Emacspeak does not allow \n";
print "the colors to actually change. Run \n";
print "this outside Emacspeak to see colors \n";
print "change. \n";
print " If volume is increased beyond 240,\n";
print "the sound level suddenly drops to 0.\n";
print " If you create favorite.vol etc. \n";
print "with an editor, make sure each line \n";
print "ends with a new line character. \n";
print "\n Press any key when finished reading.\n";
$in_key = <STDIN>;
} # end subroutine readme
# ---- foreground background subroutines ----
#################################################
# change_color_scheme
########################################################
sub change_color_scheme
{
do # while
{
# system( "clear" );
print "Main Color Change Menu.\n\n";
print "Your options are\n";
print "1 to change Foreground color.\n";
print "2 to change Background color.\n";
print "3 to restore the default colors.\n";
print "m to return to Main Menu.\n";
print "q to quit this program.\n";
print "r to repeat this menu.\n";
print "Type 1 2 3 m r or q and press ENTER now!\n";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
if( $in_key == 1 )
{
$focus_num = "3"; # foreground 3 is hardcoded
$focus_word = "foreground";
$ret1 = &change_foreground();
system( "clear" );
}
elsif( $in_key == 2 )
{
$focus_word = "background";
$focus_num = "4"; # focus is background
$ret1 = &change_background();
system( "clear" );
}
elsif( $in_key == 3 )
{
print "Setting foreground and background\n";
print "to original colors. \n";
system("echo -e \"\033[35;1m Bac to original colors \033[0m\"" );
} # end if statement
} while(($in_key ne "m") && ($in_key ne "q"));
system( "clear" );
if( $in_key eq "q" )
{
$ret = &exit_program();
}
} # end subroutine change_color_scheme
########################################
# change_foreground
########################################
sub change_foreground
{
$old_c = "17"; # unknown
$cannot_open = 0; # false
unless( open( FAVORITEFG, "/usr/sbin/favorite.fg") ) {
print "File /usr/sbin/favorite.fg can't be opened!\n";
$cannot_open = 1; # true
} # end unless
if( $cannot_open == 0 )
{
$old_c = <FAVORITEFG>;
chop( $old_c );
$color = $old_c;
$ret1 = &set_color();
# print "old_c \<$old_fg\>.\n";
close( FAVORITEFG );
} # end if cannot_open == 0
system( "clear" );
print "Current $focus_word is $old_c $colors[$old_c -1].\n";
# print "Press a key to continue.";
# $in_key = <STDIN>;
$ret1 = &show_color_menu();
$ret1 = &set_color();
if( $valid_choice == 1 )
{
print "Do you want your $focus_word $colors[$color -1]? y/n ";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
# print "in_key is \<$in_key>.\n";
if(($in_key eq "y") || ($in_key eq "Y"))
{
system( "rm /usr/sbin/favorite.fG" );
unless( open( FAVORITEFG, ">/usr/sbin/favorite.fg") ) {
die("Cannot open file: /usr/sbin/favorite.fg!\n\n");
} # end unless
print FAVORITEFG "$color\n";
print "Saving $color $colors[$color -1] $focus_word.\n\n";
}
else # no
{
$color = $old_c;
print "Restoring old $focus_word $old_c $colors[$old_fg -1].\n";
$ret1 = &set_color(); # $old_fg );
} # end if saving new color setting
} # end if $valid_choice == 1 yes
} # end subroutine change_foreground
################################################
# set_color of either foreground or background
################################################
sub set_color
{
# print "\n*** sub change_background ***\n";
# If $focus_num eq "3", foreground gets set.
# If $focus_num eq "4", background gets set.
if((0 < $color) && ($color < 9))
{
$n = $color - 1;
print "\033["."$focus_num"."$n"."m\n";
$valid_bg = 1; # true
}
elsif((8 < $color) && ($color < 17))
{
$n = $color - 9;
print "\033["."$focus_num"."$n".";1m\n";
$valid_bg = 1; # true
}
else
{
$valid_bg = 0; # false
} # end if
} # end subroutine set_color
###############################################
# show_color_menu
###############################################
sub show_color_menu
{
do
{
system( "clear" );
# Display color menu on screen.
for( $j=1 ; $j < 17 ; $j++ )
{
print " $j for $colors[$j - 1].\n";
} # end for loop that prints body of menu
print "Type an integer from 1 to 16 and press ENTER now!\n";
print "or type m & press Enter to go to the Main Color Menu.\n";
print "or type r & press enter to repeat menu.\n";
$color = <STDIN>;
chop( $color );
$color =~ s/^\s+//; # strip lead & trail white space
$color =~ s/\s+$//;
# $color = substr( $color, 0, 1 );
} while( $color eq "r" );
if((0 < $color) && ($color < 17) )
{
$valid_choice = 1;
}
else
{
$valid_choice = 0; # false
}
} # end subroutine show_color_menu
########################################
# change_background
########################################
sub change_background
{
$old_c = "17"; # unknown
$cannot_open = 0; # false
unless( open( FAVORITEBG, "/usr/sbin/favorite.bg") ) {
print "File /usr/sbin/favorite.bg can't be opened!\n";
$cannot_open = 1; # true
} # end unless
if( $cannot_open == 0 )
{
$old_c = <FAVORITEBG>;
chop( $old_c );
$color = $old_c;
$ret1 = &set_color();
print "old_c \<$old_c\>.\n";
close( FAVORITEBG );
} # end if cannot_open == 0
system( "clear" );
print "Current $focus_word is $old_c $colors[$old_c -1].\n";
$ret1 = &show_color_menu();
$ret1 = &set_color();
if( $valid_choice == 1 )
{
print "Do you want your $focus_word $colors[$color -1]? y/n ";
$in_key = <STDIN>;
chop( $in_key );
$ret = &strip_white_space();
# print "in_key is \<$in_key>.\n";
if(($in_key eq "y") || ($in_key eq "Y"))
{
system( "rm /usr/sbin/favorite.fG" );
unless( open( FAVORITEFG, ">/usr/sbin/favorite.bg") ) {
die("Cannot open file: /usr/sbin/favorite.bg!\n\n");
} # end unless
print FAVORITEBG "$color\n";
print "Saving $color $colors[$color -1] $focus_word.\n\n";
}
else # no
{
$color = $old_c;
print "Restoring old $focus_word $old_c $colors[$old_fg -1].\n";
$ret1 = &set_color(); # $old_fg );
} # end if saving new color setting
} # end if $valid_choice == 1 yes
} # end subroutine change_background
########################################
# catch_your_breath
########################################
sub catch_your_breath
{
local( $i);
for( $i = 0 ; $i < 10000 ; $i++ ) {
$keep_quiet = 1;
} # end for loop
} # end subroutine catch_your_breath
##########################################################
# strip_white_space
##########################################################
sub strip_white_space
{
$in_key =~ s/^\s+//; # chop leading white space
$in_key =~ s/\s+$//; # chop trailing white space
$in_key = substr( $in_key, 0, 1 ); # reduce to first char only
} # end subroutine strip_white_space
##########################################################
# exit_program prints a message and exits
##########################################################
sub exit_program
{
print "\n\n\n\nExiting Accessibility Settings For The Linux Console \n";
} # end subroutine exit_program
Michael R. Cross
LTS - Linux Information Development
Mike Cross/Austin/IBM (mrcross@us.ibm.com)
512-838-0087 / tl 678-0087
--0__=85256AD4006805E18f9e8a93df938690918c85256AD4006805E1
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