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# vim:ft=perl:fenc=utf-8:tw=80
# Copyright (c) 2009-, Simon Lundström <simmel@soy.se>
# Copyright (c) 2014 Maarten de Vries <maarten@de-vri.es>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
my @fonts = (
{'name' => 'font', 'code' => 710},
{'name' => 'boldFont', 'code' => 711},
{'name' => 'italicFont', 'code' => 712},
{'name' => 'boldItalicFont', 'code' => 713},
);
my @fixed = qw(4x6 5x7 5x8 6x9 6x10 6x12 6x13 7x13 7x14 8x13 8x16 9x15 9x18
10x20 12x24);
my $step;
sub on_start {
my ($self) = @_;
foreach (@fonts) {
$_->{'default'} = $self->resource($_->{'name'});
}
$step = $self->x_resource("%.step") || 2;
}
sub on_init {
my ($self) = @_;
my $commands = {
"smaller" => "C-minus",
"bigger" => "C-plus",
"reset" => "C-equal",
"show" => "C-question",
};
bind_hotkeys($self, $commands);
()
}
sub bind_hotkeys {
my ($self, $commands) = @_;
for (keys %$commands) {
my $hotkey = $$commands{$_};
my $hotkey_bound = $self->{'term'}->x_resource("keysym.$hotkey");
if (!defined($hotkey_bound) ) {
# Support old-style key bindings
if ($self->x_resource("%.$_")) {
$hotkey = $self->x_resource("%.$_");
}
# FIXME If we're bound to a keysym, don't bind the default.
$self->bind_action($hotkey, "%:$_") or
warn "unable to register '$hotkey' as hotkey for $_";
}
else {
if ($hotkey_bound !~ /^resize-font:/) {
warn "Hotkey $$commands{$_} already bound to $hotkey_bound, not ".
"binding to resize-font:$_ by default.";
}
}
}
}
sub on_action {
my ($self, $string) = @_;
if ($string eq "bigger") {
foreach (@fonts) {
next if not defined($_->{'default'});
update_font_size($self, $_, +$step);
}
}
elsif ($string eq "smaller") {
foreach (@fonts) {
next if not defined($_->{'default'});
update_font_size($self, $_, -$step);
}
}
elsif ($string eq "reset") {
foreach (@fonts) {
next if not defined($_->{'default'});
set_font($self, $_, $_->{'default'});
}
}
elsif ($string eq "show") {
my $term = $self->{'term'};
$term->{'resize-font'}{'overlay'} = {
ov => $term->overlay_simple(0, -1, format_font_info($self)),
to => urxvt::timer
->new
->start(urxvt::NOW + 1)
->cb(sub {
delete $term->{'resize-font'}{'overlay'};
}),
};
}
()
}
sub get_font {
my ($self, $name) = @_;
return $self->resource($name);
}
sub set_font {
my ($self, $font, $new) = @_;
$self->cmd_parse(sprintf("\33]%d;%s\007", $font->{'code'}, $new));
}
sub round {
return sprintf("%.0f", @_);
}
sub atleast {
my ($min, $val) = @_;
if (0 < abs $val && abs $val < $min){
return $val / abs($val)
}
return $val;
}
sub update_font_size {
my ($self, $font, $delta) = @_;
my $regex = qr"(?<=size=)(\d+(?:\.\d+)?)";
my $current = get_font($self, $font->{'name'});
my ($index) = grep { $fixed[$_] eq $current } 0..$#fixed;
if ($index or $index eq 0) {
my $inc = $delta / abs($delta);
$index += $inc;
if ($index < 0) { $index = 0; }
if ($index > $#fixed) { $index = $#fixed; }
$current = $fixed[$index];
}
elsif ($current =~ /^-/) {
my @font = split(/-/, $current);
# https://en.wikipedia.org/wiki/X_logical_font_description
#Pixel size
if ($font[7] gt 0) {
$delta = atleast(1, $delta);
my $newsize = round($font[7]+$delta);
$font[7] = $newsize if ($newsize > 0)
}
#Point size
elsif ($font[8] gt 0) {
$delta = atleast(1, $delta*10);
my $newsize = round($font[8]+$delta);
$font[8] = $newsize if ($newsize > 0)
}
$current = join('-', @font);
}
else {
my $newsize = $1+$delta if ($current =~ /$regex/);
$current =~ s/$regex/$newsize/ge if ($newsize > 0);
}
set_font($self, $font, $current);
}
sub format_font_info {
my ($self) = @_;
my $width = 0;
foreach (@fonts) {
my $length = length($_->{'name'});
$width = $length > $width ? $length : $width;
}
++$width;
my $info = '';
foreach (@fonts) {
$info .= sprintf("%-${width}s %s\n", $_->{'name'} . ':',
get_font($self, $_->{'name'}));
}
return $info;
}
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