require 5; package Pod::Perldoc::ToTk; use strict; use warnings; use base qw(Pod::Perldoc::BaseTo); sub is_pageable { 1 } sub write_with_binmode { 0 } sub output_extension { 'txt' } # doesn't matter sub if_zero_length { } # because it will be 0-length! sub new { return bless {}, ref($_[0]) || $_[0] } # TODO: document these and their meanings... sub tree { shift->_perldoc_elem('tree' , @_) } sub tk_opt { shift->_perldoc_elem('tk_opt' , @_) } sub forky { shift->_perldoc_elem('forky' , @_) } use Pod::Perldoc (); use File::Spec::Functions qw(catfile); use Tk; die join '', __PACKAGE__, " doesn't work nice with Tk.pm verison $Tk::VERSION" if $Tk::VERSION eq '800.003'; BEGIN { eval { require Tk::FcyEntry; }; }; use Tk::Pod; # The following was adapted from "tkpod" in the Tk-Pod dist. sub parse_from_file { my($self, $Input_File) = @_; if($self->{'forky'}) { return if fork; # i.e., parent process returns } $Input_File =~ s{\\}{/}g if Pod::Perldoc::IS_MSWin32 or Pod::Perldoc::IS_Dos # and maybe OS/2 ; my($tk_opt, $tree); $tree = $self->{'tree' }; $tk_opt = $self->{'tk_opt'}; #require Tk::ErrorDialog; # Add 'Tk' subdirectories to search path so, e.g., # 'Scrolled' will find doc in 'Tk/Scrolled' if( $tk_opt ) { push @INC, grep -d $_, map catfile($_,'Tk'), @INC; } my $mw = MainWindow->new(); #eval 'use blib "/home/e/eserte/src/perl/Tk-App";require Tk::App::Debug'; $mw->withdraw; # CDE use Font Settings if available my $ufont = $mw->optionGet('userFont','UserFont'); # fixed width my $sfont = $mw->optionGet('systemFont','SystemFont'); # proportional if (defined($ufont) and defined($sfont)) { foreach ($ufont, $sfont) { s/:$//; }; $mw->optionAdd('*Font', $sfont); $mw->optionAdd('*Entry.Font', $ufont); $mw->optionAdd('*Text.Font', $ufont); } $mw->optionAdd('*Menu.tearOff', $Tk::platform ne 'MSWin32' ? 1 : 0); $mw->Pod( '-file' => $Input_File, (($Tk::Pod::VERSION >= 4) ? ('-tree' => $tree) : ()) )->focusNext; # xxx dirty but it works. A simple $mw->destroy if $mw->children # does not work because Tk::ErrorDialogs could be created. # (they are withdrawn after Ok instead of destory'ed I guess) if ($mw->children) { $mw->repeat(1000, sub { # ErrorDialog is withdrawn not deleted :-( foreach ($mw->children) { return if "$_" =~ /^Tk::Pod/ # ->isa('Tk::Pod') } $mw->destroy; }); } else { $mw->destroy; } #$mw->WidgetDump; MainLoop(); exit if $self->{'forky'}; # we were the child! so exit now! return; } 1; __END__ =head1 NAME Pod::Perldoc::ToTk - let Perldoc use Tk::Pod to render Pod =head1 SYNOPSIS perldoc -o tk Some::Modulename & =head1 DESCRIPTION This is a "plug-in" class that allows Perldoc to use Tk::Pod as a formatter class. You have to have installed Tk::Pod first, or this class won't load. =head1 SEE ALSO L, L =head1 AUTHOR Sean M. Burke C, with significant portions copied from F in the Tk::Pod dist, by Nick Ing-Simmons, Slaven Rezic, et al. =cut