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+# Copyright (c) 1995-2004 Nick Ing-Simmons. All rights reserved.
+# This program is free software; you can redistribute it and/or
+# modify it under the same terms as Perl itself.
+package Tk::Widget;
+use vars qw($VERSION @DefaultMenuLabels);
+$VERSION = '4.033'; # was: sprintf '4.%03d', q$Revision: #30 $ =~ /\D(\d+)\s*$/;
+
+require Tk;
+use AutoLoader;
+use strict;
+use Carp;
+use base qw(DynaLoader Tk);
+
+# stubs for 'autoloaded' widget classes
+sub Button;
+sub Canvas;
+sub Checkbutton;
+sub Entry;
+sub Frame;
+sub Label;
+sub Labelframe;
+sub Listbox;
+sub Menu;
+sub Menubutton;
+sub Message;
+sub Panedwindow;
+sub Radiobutton;
+sub Scale;
+sub Scrollbar;
+sub Spinbox;
+sub Text;
+sub Toplevel;
+
+sub Pixmap;
+sub Bitmap;
+sub Photo;
+
+sub ScrlListbox;
+sub Optionmenu;
+
+sub import
+{
+ my $package = shift;
+ carp 'use Tk::Widget () to pre-load widgets is deprecated' if (@_);
+ my $need;
+ foreach $need (@_)
+ {
+ unless (defined &{$need})
+ {
+ require "Tk/${need}.pm";
+ }
+ croak "Cannot locate $need" unless (defined &{$need});
+ }
+}
+
+@DefaultMenuLabels = qw[~File ~Help];
+
+# Some tidy-ness functions for winfo stuff
+
+sub True { 1 }
+sub False { 0 }
+
+use Tk::Submethods( 'grab' => [qw(current status release -global)],
+ 'focus' => [qw(-force -lastfor)],
+ 'pack' => [qw(configure forget info propagate slaves)],
+ 'grid' => [qw(bbox columnconfigure configure forget info location propagate rowconfigure size slaves)],
+ 'form' => [qw(check configure forget grid info slaves)],
+ 'event' => [qw(add delete generate info)],
+ 'place' => [qw(configure forget info slaves)],
+ 'wm' => [qw(capture release)],
+ 'font' => [qw(actual configure create delete families measure metrics names subfonts)]
+ );
+
+BEGIN {
+ # FIXME - these don't work in the compiler
+ *IsMenu = \&False;
+ *IsMenubutton = \&False;
+ *configure_self = \&Tk::configure;
+ *cget_self = \&Tk::cget;
+}
+
+
+
+Direct Tk::Submethods (
+ 'winfo' => [qw(cells class colormapfull depth exists
+ geometry height id ismapped manager name parent reqheight
+ reqwidth rootx rooty screen screencells screendepth screenheight
+ screenmmheight screenmmwidth screenvisual screenwidth visual
+ visualsavailable vrootheight viewable vrootwidth vrootx vrooty
+ width x y toplevel children pixels pointerx pointery pointerxy
+ server fpixels rgb )],
+ 'tk' => [qw(appname caret scaling useinputmethods windowingsystem)]);
+
+
+sub DESTROY
+{
+ my $w = shift;
+ $w->destroy if ($w->IsWidget);
+}
+
+sub Install
+{
+ # Dynamically loaded widgets add their core commands
+ # to the Tk base class here
+ my ($package,$mw) = @_;
+}
+
+sub ClassInit
+{
+ # Carry out class bindings (or whatever)
+ my ($package,$mw) = @_;
+ return $package;
+}
+
+sub CreateOptions
+{
+ return ();
+}
+
+sub CreateArgs
+{
+ my ($package,$parent,$args) = @_;
+ # Remove from hash %$args any configure-like
+ # options which only apply at create time (e.g. -colormap for Frame),
+ # or which may as well be applied right away
+ # return these as a list of -key => value pairs
+ # Augment same hash with default values for missing mandatory options,
+ # allthough this can be done later in InitObject.
+
+ # Honour -class => if present, we have hacked Tk_ConfigureWidget to
+ # allow -class to be passed to any widget.
+ my @result = ();
+ my $class = delete $args->{'-class'};
+ ($class) = $package =~ /([A-Z][A-Z0-9_]*)$/i unless (defined $class);
+ @result = (-class => "\u$class") if (defined $class);
+ foreach my $opt ($package->CreateOptions)
+ {
+ push(@result, $opt => delete $args->{$opt}) if exists $args->{$opt};
+ }
+ return @result;
+}
+
+sub InitObject
+{
+ my ($obj,$args) = @_;
+ # per object initialization, for example populating
+ # with sub-widgets, adding a few object bindings to augment
+ # inherited class bindings, changing binding tags.
+ # Also another chance to mess with %$args before configure...
+}
+
+sub SetBindtags
+{
+ my ($obj) = @_;
+ $obj->bindtags([ref($obj),$obj,$obj->toplevel,'all']);
+}
+
+sub new
+{
+ local $SIG{'__DIE__'} = \&Carp::croak;
+ my $package = shift;
+ my $parent = shift;
+ $package->InitClass($parent);
+ $parent->BackTrace("Odd number of args to $package->new(...)") unless ((@_ % 2) == 0);
+ my %args = @_;
+ my @args = $package->CreateArgs($parent,\%args);
+ my $cmd = $package->Tk_cmd;
+ my $pname = $parent->PathName;
+ $pname = '' if ($pname eq '.');
+ my $leaf = delete $args{'Name'};
+ if (defined $leaf)
+ {
+ $leaf =~ s/[^a-z0-9_#]+/_/ig;
+ $leaf = lcfirst($leaf);
+ }
+ else
+ {
+ ($leaf) = "\L$package" =~ /([a-z][a-z0-9_]*)$/;
+ }
+ my $lname = $pname . '.' . $leaf;
+ # create a hash indexed by leaf name to speed up
+ # creation of a lot of sub-widgets of the same type
+ # e.g. entries in Table
+ my $nhash = $parent->TkHash('_names_');
+ $nhash->{$leaf} = 0 unless (exists $nhash->{$leaf});
+ while (defined ($parent->Widget($lname)))
+ {
+ $lname = $pname . '.' . $leaf . ++$nhash->{$leaf};
+ }
+ my $obj = eval { &$cmd($parent, $lname, @args) };
+ confess $@ if $@;
+ unless (ref $obj)
+ {
+ die "No value from $cmd $lname" unless defined $obj;
+ warn "$cmd '$lname' returned '$obj'" unless $obj eq $lname;
+ $obj = $parent->Widget($lname = $obj);
+ die "$obj from $lname" unless ref $obj;
+ }
+ bless $obj,$package;
+ $obj->SetBindtags;
+ my $notice = $parent->can('NoticeChild');
+ $parent->$notice($obj,\%args) if $notice;
+ $obj->InitObject(\%args);
+# ASkludge(\%args,1);
+ $obj->configure(%args) if (%args);
+# ASkludge(\%args,0);
+ return $obj;
+}
+
+sub DelegateFor
+{
+ my ($w,$method) = @_;
+ while(exists $w->{'Delegates'})
+ {
+ my $delegate = $w->{'Delegates'};
+ my $widget = $delegate->{$method};
+ $widget = $delegate->{DEFAULT} unless (defined $widget);
+ $widget = $w->Subwidget($widget) if (defined $widget && !ref $widget);
+ last unless (defined $widget);
+ last if $widget == $w;
+ $w = $widget;
+ }
+ return $w;
+}
+
+sub Delegates
+{
+ my $cw = shift;
+ my $specs = $cw->TkHash('Delegates');
+ while (@_)
+ {
+ my $key = shift;
+ my $val = shift;
+ $specs->{$key} = $val;
+ }
+ return $specs;
+}
+
+sub Construct
+{
+ my ($base,$name) = @_;
+ my $class = (caller(0))[0];
+ no strict 'refs';
+
+ # Hack for broken ->isa in perl5.6.0
+ delete ${"$class\::"}{'::ISA::CACHE::'} if $] == 5.006;
+
+ # Pre ->isa scheme
+ *{$base.'::Is'.$name} = \&False;
+ *{$class.'::Is'.$name} = \&True;
+
+ # DelegateFor trickyness is to allow Frames and other derived things
+ # to force creation in a delegate e.g. a ScrlText with embeded windows
+ # need those windows to be children of the Text to get clipping right
+ # and not of the Frame which contains the Text and the scrollbars.
+ *{$base.'::'."$name"} = sub { $class->new(shift->DelegateFor('Construct'),@_) };
+}
+
+sub IS
+{
+ return (defined $_[1]) && $_[0] == $_[1];
+}
+
+sub _AutoloadTkWidget
+{
+ my ($self,$method) = @_;
+ my $what = "Tk::Widget::$method";
+ unless (defined &$what)
+ {
+ require "Tk/$method.pm";
+ }
+ return $what;
+}
+
+# require UNIVERSAL; don't load .pm use XS code from perl core though
+
+sub AUTOLOAD
+{
+ # Take a copy into a 'my' variable so we can recurse
+ my $what = $Tk::Widget::AUTOLOAD;
+ my $save = $@;
+ my $name;
+ # warn "AUTOLOAD $what ".(ref($_[0]) || $_[0])."\n";
+ # Braces used to preserve $1 et al.
+ {
+ my ($pkg,$func) = $what =~ /(.*)::([^:]+)$/;
+ confess("Attempt to load '$what'") unless defined($pkg) && $func =~ /^[\w:]+$/;
+ $pkg =~ s#::#/#g;
+ if (defined($name=$INC{"$pkg.pm"}))
+ {
+ $name =~ s#^(.*)$pkg\.pm$#$1auto/$pkg/$func.al#;
+ }
+ else
+ {
+ $name = "auto/$what.al";
+ $name =~ s#::#/#g;
+ }
+ }
+ # This may fail, catch error and prevent user's __DIE__ handler
+ # from triggering as well...
+ eval {local $SIG{'__DIE__'}; require $name};
+ if ($@)
+ {
+ croak $@ unless ($@ =~ /Can't locate\s+(?:file\s+)?'?\Q$name\E'?/);
+ my($package,$method) = ($what =~ /^(.*)::([^:]*)$/);
+ if (ref $_[0] && !$_[0]->can($method)
+ && $_[0]->can('Delegate')
+ && $method !~ /^(ConfigSpecs|Delegates)/ )
+ {
+ my $delegate = $_[0]->Delegates;
+ if (%$delegate || tied %$delegate)
+ {
+ my $widget = $delegate->{$method};
+ $widget = $delegate->{DEFAULT} unless (defined $widget);
+ if (defined $widget)
+ {
+ my $subwidget = (ref $widget) ? $widget : $_[0]->Subwidget($widget);
+ if (defined $subwidget)
+ {
+ no strict 'refs';
+ # print "AUTOLOAD: $what\n";
+ *{$what} = sub { shift->Delegate($method,@_) };
+ }
+ else
+ {
+ croak "No delegate subwidget '$widget' for $what";
+ }
+ }
+ }
+ }
+ if (!defined(&$what) && ref($_[0]) && $method =~ /^[A-Z]\w+$/)
+ {
+ # Use ->can as ->isa is broken in perl5.6.0
+ my $sub = UNIVERSAL::can($_[0],'_AutoloadTkWidget');
+ if ($sub)
+ {
+ carp "Assuming 'require Tk::$method;'" unless $_[0]->can($method);
+ $what = $_[0]->$sub($method)
+ }
+ }
+ }
+ $@ = $save;
+ $DB::sub = $what; # Tell debugger what is going on...
+ unless (defined &$what)
+ {
+ no strict 'refs';
+ *{$what} = sub { croak("Failed to AUTOLOAD '$what'") };
+ }
+ goto &$what;
+}
+
+sub _Destroyed
+{
+ my $w = shift;
+ my $a = delete $w->{'_Destroy_'};
+ if (ref($a))
+ {
+ while (@$a)
+ {
+ my $ent = pop(@$a);
+ if (ref $ent)
+ {
+ eval {local $SIG{'__DIE__'}; $ent->Call };
+ }
+ else
+ {
+ delete $w->{$ent};
+ }
+ }
+ }
+}
+
+sub _OnDestroy
+{
+ my $w = shift;
+ $w->{'_Destroy_'} = [] unless (exists $w->{'_Destroy_'});
+ push(@{$w->{'_Destroy_'}},@_);
+}
+
+sub OnDestroy
+{
+ my $w = shift;
+ $w->_OnDestroy(Tk::Callback->new(@_));
+}
+
+sub TkHash
+{
+ my ($w,$key) = @_;
+ return $w->{$key} if exists $w->{$key};
+ my $hash = $w->{$key} = {};
+ $w->_OnDestroy($key);
+ return $hash;
+}
+
+sub privateData
+{
+ my $w = shift;
+ my $p = shift || caller;
+ $w->{$p} ||= {};
+}
+
+my @image_types;
+my %image_method;
+
+sub ImageMethod
+{
+ shift if (@_ & 1);
+ while (@_)
+ {
+ my ($name,$method) = splice(@_,0,2);
+ push(@image_types,$name);
+ $image_method{$name} = $method;
+ }
+}
+
+sub Getimage
+{
+ my ($w, $name) = @_;
+ my $mw = $w->MainWindow;
+ croak "Usage \$widget->Getimage('name')" unless defined($name);
+ my $images = ($mw->{'__Images__'} ||= {});
+
+ return $images->{$name} if $images->{$name};
+
+ ImageMethod(xpm => 'Pixmap',
+ gif => 'Photo',
+ ppm => 'Photo',
+ xbm => 'Bitmap' ) unless @image_types;
+
+ foreach my $type (@image_types)
+ {
+ my $method = $image_method{$type};
+ my $file = Tk->findINC( "$name.$type" );
+ next unless( $file && $method );
+ my $sub = $w->can($method);
+ unless (defined &$sub)
+ {
+ require Tk::widgets;
+ Tk::widgets->import($method);
+ }
+ $images->{$name} = $w->$method( -file => $file );
+ return $images->{$name};
+ }
+
+ # Try built-in bitmaps
+ $images->{$name} = $w->Pixmap( -id => $name );
+ return $images->{$name};
+}
+
+sub SaveGrabInfo
+{
+ my $w = shift;
+ $Tk::oldGrab = $w->grabCurrent;
+ if (defined $Tk::oldGrab)
+ {
+ $Tk::grabStatus = $Tk::oldGrab->grabStatus;
+ }
+}
+
+sub grabSave
+{
+ my ($w) = @_;
+ my $grab = $w->grabCurrent;
+ return sub {} if (!defined $grab);
+ my $method = ($grab->grabStatus eq 'global') ? 'grabGlobal' : 'grab';
+ return sub { eval {local $SIG{'__DIE__'}; $grab->$method() } };
+}
+
+sub focusCurrent
+{
+ my ($w) = @_;
+ $w->Tk::focus('-displayof');
+}
+
+sub focusSave
+{
+ my ($w) = @_;
+ my $focus = $w->focusCurrent;
+ return sub {} if (!defined $focus);
+ return sub { eval {local $SIG{'__DIE__'}; $focus->focus } };
+}
+
+# This is supposed to replicate Tk::after behaviour,
+# but does auto-cancel when widget is deleted.
+require Tk::After;
+
+sub afterCancel
+{
+ my ($w,$what) = @_;
+ if (defined $what)
+ {
+ return $what->cancel if ref($what);
+ carp "dubious cancel of $what" if 0 && $^W;
+ $w->Tk::after('cancel' => $what);
+ }
+}
+
+sub afterIdle
+{
+ my $w = shift;
+ return Tk::After->new($w,'idle','once',@_);
+}
+
+sub afterInfo {
+ my ($w, $id) = @_;
+ if (defined $id) {
+ return ($id->[4], $id->[2], $id->[3]);
+ } else {
+ return sort( keys %{$w->{_After_}} );
+ }
+}
+
+sub after
+{
+ my $w = shift;
+ my $t = shift;
+ if (@_)
+ {
+ if ($t ne 'cancel')
+ {
+ require Tk::After;
+ return Tk::After->new($w,$t,'once',@_)
+ }
+ while (@_)
+ {
+ my $what = shift;
+ $w->afterCancel($what);
+ }
+ }
+ else
+ {
+ $w->Tk::after($t);
+ }
+}
+
+sub repeat
+{
+ require Tk::After;
+ my $w = shift;
+ my $t = shift;
+ return Tk::After->new($w,$t,'repeat',@_);
+}
+
+sub FindMenu
+{
+ # default FindMenu is that there is no menu.
+ return undef;
+}
+
+sub XEvent { shift->{'_XEvent_'} }
+
+sub propertyRoot
+{
+ my $w = shift;
+ return $w->property(@_,'root');
+}
+
+# atom, atomname, containing, interps, pathname
+# don't work this way - there is no window arg
+# So we pretend there was an call the C versions from Tk.xs
+
+sub atom { shift->InternAtom(@_) }
+sub atomname { shift->GetAtomName(@_) }
+sub containing { shift->Containing(@_) }
+
+# interps not done yet
+# pathname not done yet
+
+# walk and descendants adapted from Stephen's composite
+# versions as they only use core features they can go here.
+# hierachy is reversed in that descendants calls walk rather
+# than vice versa as this avoids building a list.
+# Walk should possibly be enhanced so allow early termination
+# like '-prune' of find.
+
+sub Walk
+{
+ # Traverse a widget hierarchy while executing a subroutine.
+ my($cw, $proc, @args) = @_;
+ my $subwidget;
+ foreach $subwidget ($cw->children)
+ {
+ $subwidget->Walk($proc,@args);
+ &$proc($subwidget, @args);
+ }
+} # end walk
+
+sub Descendants
+{
+ # Return a list of widgets derived from a parent widget and all its
+ # descendants of a particular class.
+ # If class is not passed returns the entire widget hierarchy.
+
+ my($widget, $class) = @_;
+ my(@widget_tree) = ();
+
+ $widget->Walk(
+ sub { my ($widget,$list,$class) = @_;
+ push(@$list, $widget) if (!defined($class) or $class eq $widget->class);
+ },
+ \@widget_tree, $class
+ );
+ return @widget_tree;
+}
+
+sub Palette
+{
+ my $w = shift->MainWindow;
+ unless (exists $w->{_Palette_})
+ {
+ my %Palette = ();
+ my $c = $w->Checkbutton();
+ my $e = $w->Entry();
+ my $s = $w->Scrollbar();
+ $Palette{'activeBackground'} = ($c->configure('-activebackground'))[3] ;
+ $Palette{'activeForeground'} = ($c->configure('-activeforeground'))[3];
+ $Palette{'background'} = ($c->configure('-background'))[3];
+ $Palette{'disabledForeground'} = ($c->configure('-disabledforeground'))[3];
+
+ $Palette{'foreground'} = ($c->configure('-foreground'))[3];
+ $Palette{'highlightBackground'} = ($c->configure('-highlightbackground'))[3];
+ $Palette{'highlightColor'} = ($c->configure('-highlightcolor'))[3];
+ $Palette{'insertBackground'} = ($e->configure('-insertbackground'))[3];
+ $Palette{'selectColor'} = ($c->configure('-selectcolor'))[3];
+ $Palette{'selectBackground'} = ($e->configure('-selectbackground'))[3];
+ $Palette{'selectForeground'} = ($e->configure('-selectforeground'))[3];
+ $Palette{'troughColor'} = ($s->configure('-troughcolor'))[3];
+ $c->destroy;
+ $e->destroy;
+ $s->destroy;
+ $w->{_Palette_} = \%Palette;
+ }
+ return $w->{_Palette_};
+}
+
+# tk_setPalette --
+# Changes the default color scheme for a Tk application by setting
+# default colors in the option database and by modifying all of the
+# color options for existing widgets that have the default value.
+#
+# Arguments:
+# The arguments consist of either a single color name, which
+# will be used as the new background color (all other colors will
+# be computed from this) or an even number of values consisting of
+# option names and values. The name for an option is the one used
+# for the option database, such as activeForeground, not -activeforeground.
+# Additional special option names are:
+# priority: set the priority for the option database entries, see Tk::option
+sub setPalette
+{
+ my $w = shift->MainWindow;
+ # Just return on monochrome displays, otherwise errors will occur
+ return if $w->depth == 1;
+ my %new = (@_ == 1) ? (background => $_[0]) : @_;
+ my $priority = delete($new{'priority'}) || 'widgetDefault';
+
+ # Create an array that has the complete new palette. If some colors
+ # aren't specified, compute them from other colors that are specified.
+
+ die 'must specify a background color' if (!exists $new{background});
+ my @bg = $w->rgb($new{'background'});
+
+ if (!exists $new{foreground})
+ {
+ # Note that the range of each value in the triple returned by
+ # [winfo rgb] is 0-65535, and your eyes are more sensitive to
+ # green than to red, and more to red than to blue.
+ my($r,$g,$b) = @bg;
+ if ($r+1.5*$g+0.5*$b > 100000)
+ {
+ $new{'foreground'} = 'black';
+ }
+ else
+ {
+ $new{'foreground'} = 'white';
+ }
+ }
+ my @fg = $w->rgb($new{'foreground'});
+ my $darkerBg = sprintf('#%02x%02x%02x',9*$bg[0]/2560,9*$bg[1]/2560,9*$bg[2]/2560);
+ foreach my $i ('activeForeground','insertBackground','selectForeground','highlightColor')
+ {
+ $new{$i} = $new{'foreground'} unless (exists $new{$i});
+ }
+ unless (exists $new{'disabledForeground'})
+ {
+ $new{'disabledForeground'} = sprintf('#%02x%02x%02x',(3*$bg[0]+$fg[0])/1024,(3*$bg[1]+$fg[1])/1024,(3*$bg[2]+$fg[2])/1024);
+ }
+ $new{'highlightBackground'} = $new{'background'} unless (exists $new{'highlightBackground'});
+
+ unless (exists $new{'activeBackground'})
+ {
+ my @light;
+ # Pick a default active background that is lighter than the
+ # normal background. To do this, round each color component
+ # up by 15% or 1/3 of the way to full white, whichever is
+ # greater.
+ foreach my $i (0, 1, 2)
+ {
+ $light[$i] = $bg[$i]/256;
+ my $inc1 = $light[$i]*15/100;
+ my $inc2 = (255-$light[$i])/3;
+ if ($inc1 > $inc2)
+ {
+ $light[$i] += $inc1
+ }
+ else
+ {
+ $light[$i] += $inc2
+ }
+ $light[$i] = 255 if ($light[$i] > 255);
+ }
+ $new{'activeBackground'} = sprintf('#%02x%02x%02x',@light);
+ }
+ $new{'selectBackground'} = $darkerBg unless (exists $new{'selectBackground'});
+ $new{'troughColor'} = $darkerBg unless (exists $new{'troughColor'});
+ $new{'selectColor'} = '#b03060' unless (exists $new{'selectColor'});
+
+ # Before doing this, make sure that the Tk::Palette variable holds
+ # the default values of all options, so that tkRecolorTree can
+ # be sure to only change options that have their default values.
+ # If the variable exists, then it is already correct (it was created
+ # the last time this procedure was invoked). If the variable
+ # doesn't exist, fill it in using the defaults from a few widgets.
+ my $Palette = $w->Palette;
+
+ # let's make one of each of the widgets so we know what the
+ # defaults are currently for this platform.
+ $Tk::___tk_set_palette = $w->Toplevel(Name => "___tk_set_palette");
+ $Tk::___tk_set_palette->withdraw;
+ foreach my $q (qw(Button Canvas Checkbutton Entry Frame Label Labelframe
+ Listbox Menubutton Menu Message Radiobutton Scale Scrollbar
+ Spinbox Text
+ ))
+ {
+ $Tk::___tk_set_palette->Component($q, $q);
+ }
+
+ # Walk the widget hierarchy, recoloring all existing windows.
+ my $res = $w->RecolorTree(\%new);
+ if ($res->{addOptionDB})
+ {
+ for (@{ $res->{addOptionDB} })
+ {
+ $w->optionAdd(@$_);
+ }
+ }
+
+ $Tk::___tk_set_palette->destroy;
+
+ # Change the option database so that future windows will get the
+ # same colors.
+ foreach my $option (keys %new)
+ {
+ $w->option('add',"*$option",$new{$option},$priority);
+ # Save the options in the global variable Tk::Palette, for use the
+ # next time we change the options.
+ $Palette->{$option} = $new{$option};
+ }
+}
+
+# tkRecolorTree --
+# This procedure changes the colors in a window and all of its
+# descendants, according to information provided by the colors
+# argument. It only modifies colors that have their default values
+# as specified by the Tk::Palette variable.
+#
+# Arguments:
+# w - The name of a window. This window and all its
+# descendants are recolored.
+# colors - The name of an array variable in the caller,
+# which contains color information. Each element
+# is named after a widget configuration option, and
+# each value is the value for that option.
+sub RecolorTree
+{
+ my ($w,$colors) = @_;
+ local ($@);
+ my @addOptionDB;
+ my $prototype = $Tk::___tk_set_palette->Subwidget($w->Class) || undef;
+ foreach my $dbOption (keys %$colors)
+ {
+ my $option = "-\L$dbOption";
+ my $class = ucfirst($dbOption);
+ my @value;
+ eval {local $SIG{'__DIE__'}; @value = $w->configure($option) };
+ if (@value)
+ {
+ # if the option database has a preference for this
+ # dbOption, then use it, otherwise use the defaults
+ # for the widget.
+ my $defaultcolor = $w->optionGet($dbOption, $class);
+ no warnings 'uninitialized';
+ if ($defaultcolor eq '' ||
+ ($prototype && $prototype->cget($option) ne $defaultcolor))
+ {
+ $defaultcolor = $value[3];
+ }
+ if ($defaultcolor ne '' && $value[4] ne '') # XXX why this can be empty?
+ {
+ $defaultcolor = join ",", $w->rgb($defaultcolor);
+ my $chosencolor = join ",", $w->rgb($value[4]);
+ if ($defaultcolor eq $chosencolor)
+ {
+ # Change the option database so that future windows will get
+ # the same colors.
+ push @addOptionDB, ['*'.$w->Class.".$dbOption", $colors->{$dbOption}, 60];
+ $w->configure($option,$colors->{$dbOption});
+ }
+ }
+ }
+ }
+ foreach my $child ($w->children)
+ {
+ my $res = $child->RecolorTree($colors);
+ if ($res->{addOptionDB})
+ {
+ push @addOptionDB, @{ $res->{addOptionDB} };
+ }
+ }
+ return { addOptionDB => \@addOptionDB };
+}
+# tkDarken --
+# Given a color name, computes a new color value that darkens (or
+# brightens) the given color by a given percent.
+#
+# Arguments:
+# color - Name of starting color.
+# perecent - Integer telling how much to brighten or darken as a
+# percent: 50 means darken by 50%, 110 means brighten
+# by 10%.
+sub Darken
+{
+ my ($w,$color,$percent) = @_;
+ my @l = $w->rgb($color);
+ my $red = $l[0]/256;
+ my $green = $l[1]/256;
+ my $blue = $l[2]/256;
+ $red = int($red*$percent/100);
+ $red = 255 if ($red > 255);
+ $green = int($green*$percent/100);
+ $green = 255 if ($green > 255);
+ $blue = int($blue*$percent/100);
+ $blue = 255 if ($blue > 255);
+ sprintf('#%02x%02x%02x',$red,$green,$blue)
+}
+# tk_bisque --
+# Reset the Tk color palette to the old "bisque" colors.
+#
+# Arguments:
+# None.
+sub bisque
+{
+ shift->setPalette('activeBackground' => '#e6ceb1',
+ 'activeForeground' => 'black',
+ 'background' => '#ffe4c4',
+ 'disabledForeground' => '#b0b0b0',
+ 'foreground' => 'black',
+ 'highlightBackground' => '#ffe4c4',
+ 'highlightColor' => 'black',
+ 'insertBackground' => 'black',
+ 'selectColor' => '#b03060',
+ 'selectBackground' => '#e6ceb1',
+ 'selectForeground' => 'black',
+ 'troughColor' => '#cdb79e'
+ );
+}
+
+sub PrintConfig
+{
+ require Tk::Pretty;
+ my ($w) = (@_);
+ my $c;
+ foreach $c ($w->configure)
+ {
+ print Tk::Pretty::Pretty(@$c),"\n";
+ }
+}
+
+sub BusyRecurse
+{
+ my ($restore,$w,$cursor,$recurse,$top) = @_;
+ my $c = $w->cget('-cursor');
+ my @tags = $w->bindtags;
+ if ($top || defined($c))
+ {
+ push(@$restore, sub { return unless Tk::Exists($w); $w->configure(-cursor => $c); $w->bindtags(\@tags) });
+ $w->configure(-cursor => $cursor);
+ }
+ else
+ {
+ push(@$restore, sub { return unless Tk::Exists($w); $w->bindtags(\@tags) });
+ }
+ $w->bindtags(['Busy',@tags]);
+ if ($recurse)
+ {
+ foreach my $child ($w->children)
+ {
+ BusyRecurse($restore,$child,$cursor,1,0);
+ }
+ }
+ return $restore;
+}
+
+sub Busy
+{
+ my ($w,@args) = @_;
+ return unless $w->viewable;
+ my($sub, %args);
+ for(my $i=0; $i<=$#args; $i++)
+ {
+ if (ref $args[$i] eq 'CODE')
+ {
+ if (defined $sub)
+ {
+ croak "Multiple code definitions not allowed in Tk::Widget::Busy";
+ }
+ $sub = $args[$i];
+ }
+ else
+ {
+ $args{$args[$i]} = $args[$i+1]; $i++;
+ }
+ }
+ my $cursor = delete $args{'-cursor'};
+ my $recurse = delete $args{'-recurse'};
+ $cursor = 'watch' unless defined $cursor;
+ unless (exists $w->{'Busy'})
+ {
+ my @old = ($w->grabSave);
+ my $key;
+ my @config;
+ foreach $key (keys %args)
+ {
+ push(@config,$key => $w->Tk::cget($key));
+ }
+ if (@config)
+ {
+ push(@old, sub { $w->Tk::configure(@config) });
+ $w->Tk::configure(%args);
+ }
+ unless ($w->Tk::bind('Busy'))
+ {
+ $w->Tk::bind('Busy','<Any-KeyPress>',[_busy => 1]);
+ $w->Tk::bind('Busy','<Any-KeyRelease>',[_busy => 0]);
+ $w->Tk::bind('Busy','<Any-ButtonPress>',[_busy => 1]);
+ $w->Tk::bind('Busy','<Any-ButtonRelease>',[_busy => 0]);
+ $w->Tk::bind('Busy','<Any-Motion>',[_busy => 0]);
+ }
+ $w->{'Busy'} = BusyRecurse(\@old,$w,$cursor,$recurse,1);
+ }
+ my $g = $w->grabCurrent;
+ if (defined $g)
+ {
+ # warn "$g has the grab";
+ $g->grabRelease;
+ }
+ $w->update;
+ if (Tk::Exists($w))
+ {
+ eval {local $SIG{'__DIE__'}; $w->grab };
+ $w->update;
+ }
+ if ($sub && Tk::Exists($w))
+ {
+ eval { $sub->() };
+ my $err = $@;
+ $w->Unbusy(-recurse => $recurse);
+ die $err if $err;
+ }
+}
+
+sub _busy
+{
+ my ($w,$f) = @_;
+ $w->bell if $f;
+ $w->break;
+}
+
+sub Unbusy
+{
+ my ($w) = @_;
+ $w->update;
+ $w->grabRelease if Tk::Exists($w);
+ my $old = delete $w->{'Busy'};
+ if (defined $old)
+ {
+ local $SIG{'__DIE__'};
+ eval { &{pop(@$old)} } while (@$old);
+ }
+ $w->update if Tk::Exists($w);
+}
+
+sub waitVisibility
+{
+ my ($w) = shift;
+ $w->tkwait('visibility',$w);
+}
+
+sub waitVariable
+{
+ my ($w) = shift;
+ $w->tkwait('variable',@_);
+}
+
+sub waitWindow
+{
+ my ($w) = shift;
+ $w->tkwait('window',$w);
+}
+
+sub EventWidget
+{
+ my ($w) = @_;
+ return $w->{'_EventWidget_'};
+}
+
+sub Popwidget
+{
+ my ($ew,$method,$w,@args) = @_;
+ $w->{'_EventWidget_'} = $ew;
+ $w->$method(@args);
+}
+
+sub ColorOptions
+{
+ my ($w,$args) = @_;
+ my $opt;
+ $args = {} unless (defined $args);
+ foreach $opt (qw(-foreground -background -disabledforeground
+ -activebackground -activeforeground
+ ))
+ {
+ $args->{$opt} = $w->cget($opt) unless (exists $args->{$opt})
+ }
+ return (wantarray) ? %$args : $args;
+}
+
+sub XscrollBind
+{
+ my ($mw,$class) = @_;
+ $mw->bind($class,'<Left>', ['xview','scroll',-1,'units']);
+ $mw->bind($class,'<Control-Left>', ['xview','scroll',-1,'pages']);
+ $mw->bind($class,'<Control-Prior>',['xview','scroll',-1,'pages']);
+ $mw->bind($class,'<Right>', ['xview','scroll',1,'units']);
+ $mw->bind($class,'<Control-Right>',['xview','scroll',1,'pages']);
+ $mw->bind($class,'<Control-Next>', ['xview','scroll',1,'pages']);
+
+ $mw->bind($class,'<Home>', ['xview','moveto',0]);
+ $mw->bind($class,'<End>', ['xview','moveto',1]);
+ $mw->XMouseWheelBind($class);
+}
+
+sub PriorNextBind
+{
+ my ($mw,$class) = @_;
+ $mw->bind($class,'<Next>', ['yview','scroll',1,'pages']);
+ $mw->bind($class,'<Prior>', ['yview','scroll',-1,'pages']);
+}
+
+sub XMouseWheelBind
+{
+ my ($mw,$class) = @_;
+ # <4> and <5> are how mousewheel looks on X
+ # <4> and <5> are how mousewheel looks on X
+ $mw->bind($class,'<Shift-4>', ['xview','scroll',-1,'units']);
+ $mw->bind($class,'<Shift-5>', ['xview','scroll',1,'units']);
+ $mw->bind($class,'<Button-6>', ['xview','scroll',-1,'units']);
+ $mw->bind($class,'<Button-7>', ['xview','scroll',1,'units']);
+}
+
+sub YMouseWheelBind
+{
+ my ($mw,$class) = @_;
+ # <4> and <5> are how mousewheel looks on X
+ $mw->bind($class,'<4>', ['yview','scroll',-1,'units']);
+ $mw->bind($class,'<5>', ['yview','scroll',1,'units']);
+}
+
+sub YscrollBind
+{
+ my ($mw,$class) = @_;
+ $mw->PriorNextBind($class);
+ $mw->bind($class,'<Up>', ['yview','scroll',-1,'units']);
+ $mw->bind($class,'<Down>', ['yview','scroll',1,'units']);
+ $mw->YMouseWheelBind($class);
+}
+
+sub XYscrollBind
+{
+ my ($mw,$class) = @_;
+ $mw->YscrollBind($class);
+ $mw->XscrollBind($class);
+ # <4> and <5> are how mousewheel looks on X
+}
+
+sub MouseWheelBind
+{
+ my($mw,$class) = @_;
+
+ # The MouseWheel will typically only fire on Windows. However, one
+ # could use the "event generate" command to produce MouseWheel
+ # events on other platforms.
+
+ $mw->Tk::bind($class, '<MouseWheel>',
+ [ sub { $_[0]->yview('scroll',-($_[1]/120)*3,'units') }, Tk::Ev("D")]);
+
+ if ($Tk::platform eq 'unix')
+ {
+ # Support for mousewheels on Linux/Unix commonly comes through mapping
+ # the wheel to the extended buttons. If you have a mousewheel, find
+ # Linux configuration info at:
+ # http://www.inria.fr/koala/colas/mouse-wheel-scroll/
+ $mw->Tk::bind($class, '<4>',
+ sub { $_[0]->yview('scroll', -3, 'units')
+ unless $Tk::strictMotif;
+ });
+ $mw->Tk::bind($class, '<5>',
+ sub { $_[0]->yview('scroll', 3, 'units')
+ unless $Tk::strictMotif;
+ });
+ }
+}
+
+sub ScrlListbox
+{
+ my $parent = shift;
+ return $parent->Scrolled('Listbox',-scrollbars => 'w', @_);
+}
+
+sub AddBindTag
+{
+ my ($w,$tag) = @_;
+ my $t;
+ my @tags = $w->bindtags;
+ foreach $t (@tags)
+ {
+ return if $t eq $tag;
+ }
+ $w->bindtags([@tags,$tag]);
+}
+
+sub Callback
+{
+ my $w = shift;
+ my $name = shift;
+ my $cb = $w->cget($name);
+ if (defined $cb)
+ {
+ return $cb->Call(@_) if (ref $cb);
+ return $w->$cb(@_);
+ }
+ return (wantarray) ? () : undef;
+}
+
+sub packAdjust
+{
+# print 'packAdjust(',join(',',@_),")\n";
+ require Tk::Adjuster;
+ my ($w,%args) = @_;
+ my $delay = delete($args{'-delay'});
+ $delay = 1 unless (defined $delay);
+ $w->pack(%args);
+ %args = $w->packInfo;
+ my $adj = Tk::Adjuster->new($args{'-in'},
+ -widget => $w, -delay => $delay, -side => $args{'-side'});
+ $adj->packed($w,%args);
+ return $w;
+}
+
+sub gridAdjust
+{
+ require Tk::Adjuster;
+ my ($w,%args) = @_;
+ my $delay = delete($args{'-delay'});
+ $delay = 1 unless (defined $delay);
+ $w->grid(%args);
+ %args = $w->gridInfo;
+ my $adj = Tk::Adjuster->new($args{'-in'},-widget => $w, -delay => $delay);
+ $adj->gridded($w,%args);
+ return $w;
+}
+
+sub place
+{
+ local $SIG{'__DIE__'} = \&Carp::croak;
+ my $w = shift;
+ if (@_ && $_[0] =~ /^(?:configure|forget|info|slaves)$/x)
+ {
+ $w->Tk::place(@_);
+ }
+ else
+ {
+ # Two things going on here:
+ # 1. Add configure on the front so that we can drop leading '-'
+ $w->Tk::place('configure',@_);
+ # 2. Return the widget rather than nothing
+ return $w;
+ }
+}
+
+sub pack
+{
+ local $SIG{'__DIE__'} = \&Carp::croak;
+ my $w = shift;
+ if (@_ && $_[0] =~ /^(?:configure|forget|info|propagate|slaves)$/x)
+ {
+ # maybe array/scalar context issue with slaves
+ $w->Tk::pack(@_);
+ }
+ else
+ {
+ # Two things going on here:
+ # 1. Add configure on the front so that we can drop leading '-'
+ $w->Tk::pack('configure',@_);
+ # 2. Return the widget rather than nothing
+ return $w;
+ }
+}
+
+sub grid
+{
+ local $SIG{'__DIE__'} = \&Carp::croak;
+ my $w = shift;
+ if (@_ && $_[0] =~ /^(?:bbox|columnconfigure|configure|forget|info|location|propagate|rowconfigure|size|slaves)$/x)
+ {
+ my $opt = shift;
+ Tk::grid($opt,$w,@_);
+ }
+ else
+ {
+ # Two things going on here:
+ # 1. Add configure on the front so that we can drop leading '-'
+ Tk::grid('configure',$w,@_);
+ # 2. Return the widget rather than nothing
+ return $w;
+ }
+}
+
+sub form
+{
+ local $SIG{'__DIE__'} = \&Carp::croak;
+ my $w = shift;
+ if (@_ && $_[0] =~ /^(?:configure|check|forget|grid|info|slaves)$/x)
+ {
+ $w->Tk::form(@_);
+ }
+ else
+ {
+ # Two things going on here:
+ # 1. Add configure on the front so that we can drop leading '-'
+ $w->Tk::form('configure',@_);
+ # 2. Return the widget rather than nothing
+ return $w;
+ }
+}
+
+sub Scrolled
+{
+ my ($parent,$kind,%args) = @_;
+ $kind = 'Pane' if $kind eq 'Frame';
+ # Find args that are Frame create time args
+ my @args = Tk::Frame->CreateArgs($parent,\%args);
+ my $name = delete $args{'Name'};
+ push(@args,'Name' => $name) if (defined $name);
+ my $cw = $parent->Frame(@args);
+ @args = ();
+ # Now remove any args that Frame can handle
+ foreach my $k ('-scrollbars',map($_->[0],$cw->configure))
+ {
+ push(@args,$k,delete($args{$k})) if (exists $args{$k})
+ }
+ # Anything else must be for target widget - pass at widget create time
+ my $w = $cw->$kind(%args);
+ # Now re-set %args to be ones Frame can handle
+ %args = @args;
+ $cw->ConfigSpecs('-scrollbars' => ['METHOD','scrollbars','Scrollbars','se'],
+ '-background' => [$w,'background','Background'],
+ '-foreground' => [$w,'foreground','Foreground'],
+ );
+ $cw->AddScrollbars($w);
+ $cw->Default("\L$kind" => $w);
+ $cw->Delegates('bind' => $w, 'bindtags' => $w, 'menu' => $w);
+ $cw->ConfigDefault(\%args);
+ $cw->configure(%args);
+ return $cw;
+}
+
+sub Populate
+{
+ my ($cw,$args) = @_;
+}
+
+sub ForwardEvent
+{
+ my $self = shift;
+ my $to = shift;
+ $to->PassEvent($self->XEvent);
+}
+
+# Save / Return abstract event type as in Tix.
+sub EventType
+{
+ my $w = shift;
+ $w->{'_EventType_'} = $_[0] if @_;
+ return $w->{'_EventType_'};
+}
+
+sub PostPopupMenu
+{
+ my ($w, $X, $Y) = @_;
+ if (@_ < 3)
+ {
+ my $e = $w->XEvent;
+ $X = $e->X;
+ $Y = $e->Y;
+ }
+ my $menu = $w->menu;
+ $menu->Post($X,$Y) if defined $menu;
+}
+
+sub FillMenu
+{
+ my ($w,$menu,@labels) = @_;
+ foreach my $lab (@labels)
+ {
+ my $method = $lab.'MenuItems';
+ $method =~ s/~//g;
+ $method =~ s/[\s-]+/_/g;
+ if ($w->can($method))
+ {
+ $menu->Menubutton(-label => $lab, -tearoff => 0, -menuitems => $w->$method());
+ }
+ }
+ return $menu;
+}
+
+sub menu
+{
+ my ($w,$menu) = @_;
+ if (@_ > 1)
+ {
+ $w->_OnDestroy('_MENU_') unless exists $w->{'_MENU_'};
+ $w->{'_MENU_'} = $menu;
+ }
+ return unless defined wantarray;
+ unless (exists $w->{'_MENU_'})
+ {
+ $w->_OnDestroy('_MENU_');
+ $w->{'_MENU_'} = $menu = $w->Menu(-tearoff => 0);
+ $w->FillMenu($menu,$w->MenuLabels);
+ }
+ return $w->{'_MENU_'};
+}
+
+sub MenuLabels
+{
+ return @DefaultMenuLabels;
+}
+
+sub FileMenuItems
+{
+ my ($w) = @_;
+ return [ ["command"=>'E~xit', -command => [ $w, 'WmDeleteWindow']]];
+}
+
+sub WmDeleteWindow
+{
+ shift->toplevel->WmDeleteWindow
+}
+
+sub BalloonInfo
+{
+ my ($widget,$balloon,$X,$Y,@opt) = @_;
+ foreach my $opt (@opt)
+ {
+ my $info = $balloon->GetOption($opt,$widget);
+ return $info if defined $info;
+ }
+}
+
+sub ConfigSpecs {
+
+ my $w = shift;
+
+ return map { ( $_->[0], [ $w, @$_[ 1 .. 4 ] ] ) } $w->configure;
+
+}
+
+*GetSelection =
+ ($Tk::platform eq 'unix'
+ ? sub
+ {
+ my $w = shift;
+ my $sel = @_ ? shift : "PRIMARY";
+ my $txt = eval { local $SIG{__DIE__};
+ $w->SelectionGet(-selection => $sel, -type => "UTF8_STRING")
+ };
+ if ($@)
+ {
+ $txt = eval { local $SIG{__DIE__};
+ $w->SelectionGet(-selection => $sel)
+ };
+ if ($@)
+ {
+ die "could not find default selection";
+ }
+ }
+ $txt;
+ }
+ : sub
+ {
+ my $w = shift;
+ my $sel = @_ ? shift : "PRIMARY";
+ my $txt = eval { local $SIG{__DIE__};
+ $w->SelectionGet(-selection => $sel)
+ };
+ if ($@)
+ {
+ die "could not find default selection";
+ }
+ $txt;
+ }
+ );
+
+1;
+__END__
+
+sub bindDump {
+
+ # Dump lots of good binding information. This pretty-print subroutine
+ # is, essentially, the following code in disguise:
+ #
+ # print "Binding information for $w\n";
+ # foreach my $tag ($w->bindtags) {
+ # printf "\n Binding tag '$tag' has these bindings:\n";
+ # foreach my $binding ($w->bind($tag)) {
+ # printf " $binding\n";
+ # }
+ # }
+
+ my ($w) = @_;
+
+ my (@bindtags) = $w->bindtags;
+ my $digits = length( scalar @bindtags );
+ my ($spc1, $spc2) = ($digits + 33, $digits + 35);
+ my $format1 = "%${digits}d.";
+ my $format2 = ' ' x ($digits + 2);
+ my $n = 0;
+
+ my @out;
+ push @out, sprintf( "\n## Binding information for '%s', %s ##", $w->PathName, $w );
+
+ foreach my $tag (@bindtags) {
+ my (@bindings) = $w->bind($tag);
+ $n++; # count this bindtag
+
+ if ($#bindings == -1) {
+ push @out, sprintf( "\n$format1 Binding tag '$tag' has no bindings.\n", $n );
+ } else {
+ push @out, sprintf( "\n$format1 Binding tag '$tag' has these bindings:\n", $n );
+
+ foreach my $binding ( @bindings ) {
+ my $callback = $w->bind($tag, $binding);
+ push @out, sprintf( "$format2%27s : %-40s\n", $binding, $callback );
+
+ if ($callback =~ /SCALAR/) {
+ if (ref $$callback) {
+ push @out, sprintf( "%s %s\n", ' ' x $spc1, $$callback );
+ } else {
+ push @out, sprintf( "%s '%s'\n", ' ' x $spc1, $$callback );
+ }
+ } elsif ($callback =~ /ARRAY/) {
+ if (ref $callback->[0]) {
+ push @out, sprintf( "%s %s\n", ' ' x $spc1, $callback->[0], "\n" );
+ } else {
+ push @out, sprintf( "%s '%s'\n", ' ' x $spc1, $callback->[0], "\n" );
+ }
+ foreach my $arg (@$callback[1 .. $#$callback]) {
+ if (ref $arg) {
+ push @out, sprintf( "%s %-40s", ' ' x $spc2, $arg );
+ } else {
+ push @out, sprintf( "%s '%s'", ' ' x $spc2, $arg );
+ }
+
+ if (ref $arg eq 'Tk::Ev') {
+ if ($arg =~ /SCALAR/) {
+ push @out, sprintf( ": '$$arg'" );
+ } else {
+ push @out, sprintf( ": '%s'", join("' '", @$arg) );
+ }
+ }
+
+ push @out, sprintf( "\n" );
+ } # forend callback arguments
+ } # ifend callback
+
+ } # forend all bindings for one tag
+
+ } # ifend have bindings
+
+ } # forend all tags
+ push @out, sprintf( "\n" );
+ return @out;
+
+} # end bindDump
+
+
+sub ASkludge
+{
+ my ($hash,$sense) = @_;
+ foreach my $key (%$hash)
+ {
+ if ($key =~ /-.*variable/ && ref($hash->{$key}) eq 'SCALAR')
+ {
+ if ($sense)
+ {
+ my $val = ${$hash->{$key}};
+ require Tie::Scalar;
+ tie ${$hash->{$key}},'Tie::StdScalar';
+ ${$hash->{$key}} = $val;
+ }
+ else
+ {
+ untie ${$hash->{$key}};
+ }
+ }
+ }
+}
+
+
+
+# clipboardKeysyms --
+# This procedure is invoked to identify the keys that correspond to
+# the "copy", "cut", and "paste" functions for the clipboard.
+#
+# Arguments:
+# copy - Name of the key (keysym name plus modifiers, if any,
+# such as "Meta-y") used for the copy operation.
+# cut - Name of the key used for the cut operation.
+# paste - Name of the key used for the paste operation.
+#
+# This method is obsolete use clipboardOperations and abstract
+# event types instead. See Clipboard.pm and Mainwindow.pm
+
+sub clipboardKeysyms
+{
+ my @class = ();
+ my $mw = shift;
+ if (ref $mw)
+ {
+ $mw = $mw->DelegateFor('bind');
+ }
+ else
+ {
+ push(@class,$mw);
+ $mw = shift;
+ }
+ if (@_)
+ {
+ my $copy = shift;
+ $mw->Tk::bind(@class,"<$copy>",'clipboardCopy') if (defined $copy);
+ }
+ if (@_)
+ {
+ my $cut = shift;
+ $mw->Tk::bind(@class,"<$cut>",'clipboardCut') if (defined $cut);
+ }
+ if (@_)
+ {
+ my $paste = shift;
+ $mw->Tk::bind(@class,"<$paste>",'clipboardPaste') if (defined $paste);
+ }
+}
+
+sub pathname
+{
+ my ($w,$id) = @_;
+ my $x = $w->winfo('pathname',-displayof => oct($id));
+ return $x->PathName;
+}
+
+# ::tk::UnderlineAmpersand --
+# This procedure takes some text with ampersand and returns
+# text w/o ampersand and position of the ampersand.
+# Double ampersands are converted to single ones.
+# Position returned is -1 when there is no ampersand.
+#
+sub UnderlineAmpersand
+{
+ my (undef,$text) = @_;
+ if ($text =~ m{(?<!&)&(?!&)}g)
+ {
+ my $idx = pos $text;
+ $text =~ s{(?<!&)&(?!&)}{};
+ ($text, $idx);
+ }
+ else
+ {
+ ($text, -1);
+ }
+}
+
+# ::tk::SetAmpText --
+# Given widget path and text with "magic ampersands",
+# sets -text and -underline options for the widget
+#
+sub SetAmpText
+{
+ my ($w,$text) = @_;
+ my ($newtext,$under) = $w->UnderlineAmpersand($text);
+ $w->configure(-text => $newtext, -underline => $under);
+}
+
+# ::tk::AmpWidget --
+# Creates new widget, turning -text option into -text and
+# -underline options, returned by ::tk::UnderlineAmpersand.
+#
+sub AmpWidget
+{
+ my ($w,$class,%args) = @_;
+ my @options;
+ while(my($opt,$val) = each %args)
+ {
+ if ($opt eq "-text")
+ {
+ my ($newtext,$under) = $w->UnderlineAmpersand($val);
+ push @options, -text => $newtext, -underline => $under;
+ }
+ else
+ {
+ push @options, $opt, $val;
+ }
+ }
+ my $result = $w->$class(@options);
+ if ($result->can('AmpWidgetPostHook'))
+ {
+ $result->AmpWidgetPostHook;
+ }
+ return $result;
+}
+
+# ::tk::FindAltKeyTarget --
+# search recursively through the hierarchy of visible widgets
+# to find button or label which has $char as underlined character
+#
+sub FindAltKeyTarget
+{
+ my ($w,$char) = @_;
+ $char = lc $char;
+ if ($w->isa('Tk::Button') || $w->isa('Tk::Label'))
+ {
+ if ($char eq lc substr($w->cget(-text), $w->cget(-underline), 1))
+ {
+ return $w;
+ }
+ else
+ {
+ return undef;
+ }
+ }
+ else
+ {
+ for my $cw ($w->gridSlaves, $w->packSlaves, $w->placeSlaves) # Cannot handle $w->formSlaves here?
+ {
+ my $target = $cw->FindAltKeyTarget($char);
+ return $target if ($target);
+ }
+ }
+ undef;
+}
+
+# ::tk::AltKeyInDialog --
+# <Alt-Key> event handler for standard dialogs. Sends <<AltUnderlined>>
+# to button or label which has appropriate underlined character
+#
+sub AltKeyInDialog
+{
+ my ($w, $key) = @_;
+ my $target = $w->FindAltKeyTarget($key);
+ return if !$target;
+ $target->eventGenerate('<<AltUnderlined>>');
+}
+
+# ::tk::SetFocusGrab --
+# swap out current focus and grab temporarily (for dialogs)
+# Arguments:
+# grab new window to grab
+# focus window to give focus to
+# Results:
+# Returns nothing
+#
+sub SetFocusGrab
+{
+ my ($grab,$focus) = @_;
+ my $index = "$grab,$focus";
+ $Tk::FocusGrab{$index} ||= [];
+ my $data = $Tk::FocusGrab{$index};
+ push @$data, $grab->focusCurrent;
+ my $oldGrab = $grab->grabCurrent;
+ push @$data, $oldGrab;
+ if (Tk::Exists($oldGrab))
+ {
+ push @$data, $oldGrab->grabStatus;
+ }
+ # The "grab" command will fail if another application
+ # already holds the grab. So catch it.
+ Tk::catch { $grab->grab };
+ if (Tk::Exists($focus))
+ {
+ $focus->focus;
+ }
+}
+
+# ::tk::RestoreFocusGrab --
+# restore old focus and grab (for dialogs)
+# Arguments:
+# grab window that had taken grab
+# focus window that had taken focus
+# destroy destroy|withdraw - how to handle the old grabbed window
+# Results:
+# Returns nothing
+#
+sub RestoreFocusGrab
+{
+ my ($grab, $focus, $destroy) = @_;
+ $destroy = 'destroy' if !$destroy;
+ my $index = "$grab,$focus";
+ my ($oldFocus, $oldGrab, $oldStatus);
+ if (exists $Tk::FocusGrab{$index})
+ {
+ ($oldFocus, $oldGrab, $oldStatus) = $Tk::FocusGrab{$index};
+ delete $Tk::FocusGrab{$index};
+ }
+ else
+ {
+ $oldGrab = "";
+ }
+
+ Tk::catch { $oldFocus->focus };
+ if (Tk::Exists($grab))
+ {
+ $grab->grabRelease;
+ if ($destroy eq "withdraw")
+ {
+ $grab->withdraw;
+ }
+ else
+ {
+ $grab->destroy;
+ }
+ }
+ if (Tk::Exists($oldGrab) && $oldGrab->ismapped)
+ {
+ if ($oldStatus eq "global")
+ {
+ $oldGrab->grabGlobal;
+ }
+ else
+ {
+ $oldGrab->grab;
+ }
+ }
+}
+
+# See http://rt.cpan.org/Ticket/Display.html?id=30929 and
+# http://rt.cpan.org/Ticket/Display.html?id=31016
+sub MasterMenu
+ {
+ }
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 13:59:16 +0000