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substantial refactor; cleanroom support for bold fonts

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noah
2012-04-01 23:23:14 -05:00
parent 8191e672da
commit 67cbff7110
1 changed files with 50 additions and 20 deletions
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font
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@@ -2,7 +2,8 @@
use strict; use strict;
# On-the-fly urxvt font resizing. Like ⌘{+,-}, on mac computers # On-the-fly urxvt font resizing. Like ⌘{+,-}, on mac computers, just
# way more complicated.
# #
# Noah K. Tilton <noahktilton@gmail.com> # Noah K. Tilton <noahktilton@gmail.com>
# #
@@ -12,44 +13,69 @@ use strict;
# 2) Persists the changed font size to xresources file. # 2) Persists the changed font size to xresources file.
# #
# Note: the regexes will only work on xft xrdb entries # Note: the regexes will only work on xft xrdb entries
# For this script to work, ~/.Xdefauls should probably contain at
# least the following:
#
# urxvt*font
# urxvt*boldFont
# urxvt*boldColors: on
# #
# References: man 3 urxvtperl # References: man 3 urxvtperl
# #
# Debugging: urxvt --perl-lib ${HOME}/.urxvt -pe font # Debugging: urxvt --perl-lib ${HOME}/.urxvt -pe font
use constant X_RESOURCES => "~/.Xresources"; use constant X_RESOURCES => "~/.Xresources";
sub change_size sub _resize_xft_string
{ {
my ($self, $cmd) = @_; my ($self, $key, $delta) = @_;
my (@pieces) = split /:/, $self->{term}->resource($key);
my (@pieces) = split /:/, $self->{term}->resource("font"); # TODO make boldFont work my (@resized) = ();
my (@resized) = ();
foreach my $piece (@pieces) foreach my $piece (@pieces)
{ {
if ($piece =~ /pixelsize=(\d*)/) if ($piece =~ /pixelsize=(\d*)/)
{ {
my $size = $1; my ($size) = $1;
my $new_size = (($cmd =~ m/font:increment/) ? ($size+1) : ($size-1)); my ($new_size) = $size + $delta;
$piece =~ s/pixelsize=$size/pixelsize=$new_size/; if ($new_size < 1)
{
$new_size = 1;
}
$piece =~ s/pixelsize=$size/pixelsize=$new_size/;
} }
push @resized, $piece; push @resized, $piece;
} }
join (":", @resized);
}
my ($resized_str) = join (":", @resized); sub change_size
my $RESIZE_STR = "\033]50;" . $resized_str . "\007"; {
my $LOAD_STR = "xrdb -load " . X_RESOURCES; my ($self, $delta) = @_;
my $UPDATE_STR = "urxvt\*font:" . $resized_str;
my $SAVE_STR = "xrdb -edit " . X_RESOURCES;
$self->{term}->cmd_parse($RESIZE_STR); # update the urxvt runtime # Get xft strings with font size {+/-}1
system($LOAD_STR); # load the xrdb db my ($font_resized) = $self->_resize_xft_string( "font", $delta);
my ($font_resized_bold) = $self->_resize_xft_string( "boldFont", $delta);
# Update internal urxvt resource hash
# This is necessary or else the next resize won't have an updated
# value. "font" key is updated by urxvt when cmd_parse is called,
# but boldFont is *not*, at least with the escape sequences I'm
# emitting.
$self->{term}->resource("font", $font_resized);
$self->{term}->resource("boldFont", $font_resized_bold);
# Emit escape sequence to change fonts in rxvt runtime
$self->{term}->cmd_parse("\033]50;" . $font_resized . "\007");
# Persist the changes to xrdb
system("xrdb -load " . X_RESOURCES);
open(XRDB_MERGE, "| xrdb -merge") || die "can't fork: $!"; open(XRDB_MERGE, "| xrdb -merge") || die "can't fork: $!";
local $SIG{PIPE} = sub { die "xrdb pipe broke" }; local $SIG{PIPE} = sub { die "xrdb pipe broke" };
print XRDB_MERGE $UPDATE_STR; # merge the new values print XRDB_MERGE "urxvt\*font: $font_resized\n"
. "urxvt\*boldFont: $font_resized_bold\n";
close XRDB_MERGE || die "bad xrdb: $! $?"; close XRDB_MERGE || die "bad xrdb: $! $?";
system($SAVE_STR); # write the db values back to the file system("xrdb -edit " . X_RESOURCES);
} }
sub on_user_command sub on_user_command
@@ -60,5 +86,9 @@ sub on_user_command
# function, if defined), and $cmd is the argument z. # function, if defined), and $cmd is the argument z.
# #
my ($self, $cmd) = @_; my ($self, $cmd) = @_;
if ($cmd =~ /font:..crement/) { $self->change_size($cmd); }
if ($cmd =~ /font:(..crement)/) # {in, de, ex}
{
$self->change_size(($1 eq "increment") ? +1 : -1);
}
} }