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authorKarl Berry <karl@freefriends.org>2014-04-23 21:46:20 +0000
committerKarl Berry <karl@freefriends.org>2014-04-23 21:46:20 +0000
commit300c1eb6d37d46078d448d6d58938d5a80cd68ff (patch)
tree23a0a8b9f8f5460b405119c4d3c163d2d488ca5e /Master/tlpkg/tlperl/lib/Tk/ColorSelect.pm
parented55d86b7c5e18f6eccce80a1fb1423ca40a23b5 (diff)
(tl)perl 5.18.2 for windows from siep
git-svn-id: svn://tug.org/texlive/trunk@33648 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/tlperl/lib/Tk/ColorSelect.pm')
-rwxr-xr-xMaster/tlpkg/tlperl/lib/Tk/ColorSelect.pm414
1 files changed, 414 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Tk/ColorSelect.pm b/Master/tlpkg/tlperl/lib/Tk/ColorSelect.pm
new file mode 100755
index 00000000000..385213e4363
--- /dev/null
+++ b/Master/tlpkg/tlperl/lib/Tk/ColorSelect.pm
@@ -0,0 +1,414 @@
+package Tk::ColorSelect; # XXX why is this the Tk::ColorSelect package?
+use strict;
+
+use vars qw($VERSION);
+$VERSION = '4.014';
+
+use Tk qw(Ev);
+
+require Tk::Frame;
+
+use base qw(Tk::Frame);
+Construct Tk::Widget 'ColorSelect';
+
+sub Populate
+{
+ my ($middle,$args) = @_;
+ my($i, @a);
+ my %seen_names;
+ foreach $i ($middle->_rgbTxtPath) {
+ local *FOO;
+ next if ! open FOO, $i;
+ my $middle_left = $middle->Frame;
+ $middle_left->pack(
+ -side => 'left',
+ -padx => '0.25c',
+ -pady => '0.25c',
+ );
+ my $names = $middle->Listbox(
+ -width => 20,
+ -height => 12,
+ -relief => 'sunken',
+ -borderwidth => 2,
+ -exportselection => 0,
+ );
+ $middle->Advertise(Names => $names);
+
+ $names->bind('<Double-1>' => [$middle,'color',Ev(['getSelected'])]);
+
+ my $scroll = $middle->Scrollbar(
+ -orient => 'vertical',
+ -command => ['yview', $names],
+ -relief => 'sunken',
+ -borderwidth => 2,
+ );
+ $names->configure(-yscrollcommand => ['set',$scroll]);
+ $names->pack(-in => $middle_left, -side => 'left');
+ $scroll->pack(-in => $middle_left, -side => 'right', -fill => 'y');
+
+ while(<FOO>) {
+ chomp;
+ next if /^!/;
+ my @a = split;
+ my $color = join(' ', @a[3 .. $#a]);
+ my $hex;
+ eval { $hex = $middle->Hex($color); };
+ if ($@) {
+ #print STDERR "unknown color: '$color'\n";
+ if ($@ =~ /unknown color name "/) {
+ next;
+ } else {
+ chomp $@;
+ die $@;
+ }
+ }
+ if (!exists($seen_names{$hex}) ||
+ length($seen_names{$hex}) > length($color)) {
+ $seen_names{$hex} = $color;
+ $names->insert('end', $color);
+ }
+ }
+ close FOO;
+ last;
+ }
+
+ # Create the three scales for editing the color, and the entry for typing
+ # in a color value.
+
+ my $middle_middle = $middle->Frame;
+ $middle_middle->pack(-side => 'left', -expand => 1, -fill => 'y');
+ my $mcm1 = $middle_middle->Optionmenu(-variable => \$middle->{'color_space'},
+ -command => [ $middle, 'color_space'],
+ -relief => 'raised',
+ -options => [ ['HSB color space' => 'hsb'],
+ ['RGB color space' => 'rgb'],
+ ['CMY color space' => 'cmy']]);
+ $mcm1->pack(-side => 'top', -fill => 'x');
+
+ my(@middle_middle, @label, @scale);
+ $middle_middle[0] = $middle_middle->Frame;
+ $middle_middle[1] = $middle_middle->Frame;
+ $middle_middle[2] = $middle_middle->Frame;
+ $middle_middle[3] = $middle_middle->Frame;
+ $middle_middle[0]->pack(-side => 'top', -expand => 1);
+ $middle_middle[1]->pack(-side => 'top', -expand => 1);
+ $middle_middle[2]->pack(-side => 'top', -expand => 1);
+ $middle_middle[3]->pack(-side => 'top', -expand => 1, -fill => 'x');
+ $middle->{'Labels'} = ['zero','one','two'];
+ foreach $i (0..2) {
+ $label[$i] = $middle->Label(-textvariable => \$middle->{'Labels'}[$i]);
+ $scale[$i] = $middle->Scale(
+ -from => 0,
+ -to => 1000,
+ '-length' => '6c',
+ -orient => 'horizontal',
+ -command => [\&scale_changed, $middle],
+ );
+ $scale[$i]->pack(
+ -in => $middle_middle[$i],
+ -side => 'top',
+ -anchor => 'w',
+ );
+ $label[$i]->pack(
+ -in => $middle_middle[$i],
+ -side => 'top',
+ -anchor => 'w',
+ );
+ }
+ my $nameLabel = $middle->Label(-text => 'Name:');
+ $middle->{'Entry'} = '';
+ my $name = $middle->Entry(
+ -relief => 'sunken',
+ -borderwidth => 2,
+ -textvariable => \$middle->{'Entry'},
+ -width => 10,
+# For some reason giving this font causes problems at end of t/create.t
+# -font => '-*-Courier-Medium-R-Normal--*-120-*-*-*-*-*-*'
+ );
+
+ $nameLabel->pack(-in => $middle_middle[3], -side => 'left');
+ $name->pack(
+ -in => $middle_middle[3],
+ -side => 'right',
+ -expand => 1,
+ -fill => 'x',
+ );
+ $name->bind('<Return>' => [ $middle, 'color', Ev(['get'])]);
+
+ # Create the color display swatch on the right side of the window.
+
+ my $middle_right = $middle->Frame;
+ $middle_right->pack(
+ -side => 'left',
+ -pady => '.25c',
+ -padx => '.25c',
+ -anchor => 's',
+ );
+ my $swatch = $middle->Canvas(
+ -width => '2.5c',
+ -height => '5c',
+ );
+ my $swatch_item = $swatch->create('oval', '.5c', '.3c', '2.26c', '4.76c');
+
+ my $value = $middle->Label(
+ -textvariable => \$middle->{'color'},
+ -width => 13,
+ -font => '-*-Courier-Medium-R-Normal--*-120-*-*-*-*-*-*'
+ );
+
+ $swatch->pack(
+ -in => $middle_right,
+ -side => 'top',
+ -expand => 1,
+ -fill => 'both',
+ );
+ $value->pack(-in => $middle_right, -side => 'bottom', -pady => '.25c');
+
+ $middle->ConfigSpecs(
+ '-color_space' => ['METHOD', undef, undef, 'hsb'],
+ '-initialcolor' => '-color',
+ '-color' => ['METHOD', 'background', 'Background',
+ $middle->cget('-background')]
+ );
+
+ $middle->{'swatch'} = $swatch;
+ $middle->{'swatch_item'} = $swatch_item;
+ $middle->{'scale'} = [@scale];
+ $middle->{'red'} = 0;
+ $middle->{'blue'} = 0;
+ $middle->{'green'} = 0;
+
+}
+
+sub _rgbTxtPath
+{
+ require Tk::Config;
+ my(@xlibpath) = map { s/^-L//; "$_/X11/rgb.txt" }
+ split /\s+/, $Tk::Config::xlib;
+ (
+ @xlibpath,
+ '/usr/local/lib/X11/rgb.txt',
+ '/usr/lib/X11/rgb.txt',
+ '/usr/X11R6/lib/X11/rgb.txt',
+ '/usr/local/X11R5/lib/X11/rgb.txt',
+ '/X11/R5/lib/X11/rgb.txt',
+ '/X11/R4/lib/rgb/rgb.txt',
+ '/usr/openwin/lib/X11/rgb.txt',
+ '/usr/share/X11/rgb.txt', # This is the Debian location
+ '/usr/X11/share/X11/rgb.txt', # seen on a Mac OS X 10.5.1 system
+ '/usr/X11R6/share/X11/rgb.txt', # seen on a OpenBSD 4.2 system
+ '/etc/X11R6/rgb.txt',
+ '/etc/X11/rgb.txt', # seen on HP-UX 11.31
+ );
+}
+
+sub Hex
+{
+ my $w = shift;
+ my @rgb = (@_ == 3) ? @_ : $w->rgb(@_);
+ sprintf('#%04x%04x%04x',@rgb)
+}
+
+sub color_space {
+
+ my($objref, $space) = @_;
+
+ if (@_ > 1)
+ {
+ my %Labels = ( 'rgb' => [qw(Red Green Blue)],
+ 'cmy' => [qw(Cyan Magenta Yellow)],
+ 'hsb' => [qw(Hue Saturation Brightness)] );
+
+ # The procedure below is invoked when a new color space is selected. It
+ # changes the labels on the scales and re-loads the scales with the
+ # appropriate values for the current color in the new color space
+
+ $space = 'hsb' unless (exists $Labels{$space});
+ my $i;
+ for $i (0..2)
+ {
+ $objref->{'Labels'}[$i] = $Labels{$space}->[$i];
+ }
+ $objref->{'color_space'} = $space;
+ $objref->afterIdle(['set_scales',$objref]) unless ($objref->{'pending'}++);
+ }
+ return $objref->{'color_space'};
+} # color_space
+
+sub hsvToRgb {
+
+ # The procedure below converts an HSB value to RGB. It takes hue,
+ # saturation, and value components (floating-point, 0-1.0) as arguments,
+ # and returns a list containing RGB components (integers, 0-65535) as
+ # result. The code here is a copy of the code on page 616 of
+ # "Fundamentals of Interactive Computer Graphics" by Foley and Van Dam.
+
+ my($hue, $sat, $value) = @_;
+ my($v, $i, $f, $p, $q, $t);
+
+ $v = int(65535 * $value);
+ return ($v, $v, $v) if $sat == 0;
+ $hue *= 6;
+ $hue = 0 if $hue >= 6;
+ $i = int($hue);
+ $f = $hue - $i;
+ $p = int(65535 * $value * (1 - $sat));
+ $q = int(65535 * $value * (1 - ($sat * $f)));
+ $t = int(65535 * $value * (1 - ($sat * (1 - $f))));
+ return ($v, $t, $p) if $i == 0;
+ return ($q, $v, $p) if $i == 1;
+ return ($p, $v, $t) if $i == 2;
+ return ($p, $q, $v) if $i == 3;
+ return ($t, $p, $v) if $i == 4;
+ return ($v, $p, $q) if $i == 5;
+
+} # end hsvToRgb
+
+sub color
+{
+ my ($objref,$name) = @_;
+ if (@_ > 1 && defined($name) && length($name))
+ {
+ if ($name eq 'cancel') {
+ $objref->{color} = undef;
+ return;
+ }
+ my ($format, $shift);
+ my ($red, $green, $blue);
+
+ if ($name !~ /^#/)
+ {
+ ($red, $green, $blue) = $objref->{'swatch'}->rgb($name);
+ }
+ else
+ {
+ my $len = length $name;
+ if($len == 4) { $format = '#(.)(.)(.)'; $shift = 12; }
+ elsif($len == 7) { $format = '#(..)(..)(..)'; $shift = 8; }
+ elsif($len == 10) { $format = '#(...)(...)(...)'; $shift = 4; }
+ elsif($len == 13) { $format = '#(....)(....)(....)'; $shift = 0; }
+ else {
+ $objref->BackTrace(
+ "ColorEditor error: syntax error in color name \"$name\"");
+ return;
+ }
+ ($red,$green,$blue) = $name =~ /$format/;
+ # Looks like a call for 'pack' or similar rather than eval
+ eval "\$red = 0x$red; \$green = 0x$green; \$blue = 0x$blue;";
+ $red = $red << $shift;
+ $green = $green << $shift;
+ $blue = $blue << $shift;
+ }
+ $objref->{'red'} = $red;
+ $objref->{'blue'} = $blue;
+ $objref->{'green'} = $green;
+ my $hex = sprintf('#%04x%04x%04x', $red, $green, $blue);
+ $objref->{'color'} = $hex;
+ $objref->{'Entry'} = $name;
+ $objref->afterIdle(['set_scales',$objref]) unless ($objref->{'pending'}++);
+ $objref->{'swatch'}->itemconfigure($objref->{'swatch_item'},
+ -fill => $objref->{'color'});
+ }
+ return $objref->{'color'};
+}
+
+sub rgbToHsv {
+
+ # The procedure below converts an RGB value to HSB. It takes red, green,
+ # and blue components (0-65535) as arguments, and returns a list
+ # containing HSB components (floating-point, 0-1) as result. The code
+ # here is a copy of the code on page 615 of "Fundamentals of Interactive
+ # Computer Graphics" by Foley and Van Dam.
+
+ my($red, $green, $blue) = @_;
+ my($max, $min, $sat, $range, $hue, $rc, $gc, $bc);
+
+ $max = ($red > $green) ? (($blue > $red) ? $blue : $red) :
+ (($blue > $green) ? $blue : $green);
+ $min = ($red < $green) ? (($blue < $red) ? $blue : $red) :
+ (($blue < $green) ? $blue : $green);
+ $range = $max - $min;
+ if ($max == 0) {
+ $sat = 0;
+ } else {
+ $sat = $range / $max;
+ }
+ if ($sat == 0) {
+ $hue = 0;
+ } else {
+ $rc = ($max - $red) / $range;
+ $gc = ($max - $green) / $range;
+ $bc = ($max - $blue) / $range;
+ $hue = ($max == $red)?(0.166667*($bc - $gc)):
+ (($max == $green)?(0.166667*(2 + $rc - $bc)):
+ (0.166667*(4 + $gc - $rc)));
+ }
+ $hue += 1 if $hue < 0;
+ return ($hue, $sat, $max/65535);
+
+} # end rgbToHsv
+
+sub scale_changed {
+
+ # The procedure below is invoked when one of the scales is adjusted. It
+ # propagates color information from the current scale readings to
+ # everywhere else that it is used.
+
+ my($objref) = @_;
+
+ return if $objref->{'updating'};
+ my ($red, $green, $blue);
+
+ if($objref->{'color_space'} eq 'rgb') {
+ $red = int($objref->{'scale'}->[0]->get * 65.535 + 0.5);
+ $green = int($objref->{'scale'}->[1]->get * 65.535 + 0.5);
+ $blue = int($objref->{'scale'}->[2]->get * 65.535 + 0.5);
+ } elsif($objref->{'color_space'} eq 'cmy') {
+ $red = int(65535 - $objref->{'scale'}->[0]->get * 65.535 + 0.5);
+ $green = int(65535 - $objref->{'scale'}->[1]->get * 65.535 + 0.5);
+ $blue = int(65535 - $objref->{'scale'}->[2]->get * 65.535 + 0.5);
+ } else {
+ ($red, $green, $blue) = hsvToRgb($objref->{'scale'}->[0]->get/1000.0,
+ $objref->{'scale'}->[1]->get/1000.0,
+ $objref->{'scale'}->[2]->get/1000.0);
+ }
+ $objref->{'red'} = $red;
+ $objref->{'blue'} = $blue;
+ $objref->{'green'} = $green;
+ $objref->color(sprintf('#%04x%04x%04x', $red, $green, $blue));
+ $objref->idletasks;
+
+} # end scale_changed
+
+sub set_scales {
+
+ my($objref) = @_;
+ $objref->{'pending'} = 0;
+ $objref->{'updating'} = 1;
+
+ # The procedure below is invoked to update the scales from the current red,
+ # green, and blue intensities. It's invoked after a change in the color
+ # space and after a named color value has been loaded.
+
+ my($red, $blue, $green) = ($objref->{'red'}, $objref->{'blue'},
+ $objref->{'green'});
+
+ if($objref->{'color_space'} eq 'rgb') {
+ $objref->{'scale'}->[0]->set(int($red / 65.535 + 0.5));
+ $objref->{'scale'}->[1]->set(int($green / 65.535 + 0.5));
+ $objref->{'scale'}->[2]->set(int($blue / 65.535 + 0.5));
+ } elsif($objref->{'color_space'} eq 'cmy') {
+ $objref->{'scale'}->[0]->set(int((65535 - $red) / 65.535 + 0.5));
+ $objref->{'scale'}->[1]->set(int((65535 - $green) / 65.535 + 0.5));
+ $objref->{'scale'}->[2]->set(int((65535 - $blue) / 65.535 + 0.5));
+ } else {
+ my ($s1, $s2, $s3) = rgbToHsv($red, $green, $blue);
+ $objref->{'scale'}->[0]->set(int($s1 * 1000.0 + 0.5));
+ $objref->{'scale'}->[1]->set(int($s2 * 1000.0 + 0.5));
+ $objref->{'scale'}->[2]->set(int($s3 * 1000.0 + 0.5));
+ }
+ $objref->{'updating'} = 0;
+
+} # end set_scales
+
+1;