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-rw-r--r--Master/tlpkg/tlperl/lib/Tk/DragDrop.pm332
1 files changed, 0 insertions, 332 deletions
diff --git a/Master/tlpkg/tlperl/lib/Tk/DragDrop.pm b/Master/tlpkg/tlperl/lib/Tk/DragDrop.pm
deleted file mode 100644
index bdc54f74367..00000000000
--- a/Master/tlpkg/tlperl/lib/Tk/DragDrop.pm
+++ /dev/null
@@ -1,332 +0,0 @@
-package Tk::DragDrop;
-require Tk::DragDrop::Common;
-require Tk::Toplevel;
-require Tk::Label;
-
-use vars qw($VERSION);
-$VERSION = sprintf '4.%03d', q$Revision: #14 $ =~ /\D(\d+)\s*$/;
-
-use base qw(Tk::DragDrop::Common Tk::Toplevel);
-
-# This is a little tricky, ISA says 'Toplevel' but we
-# define a Tk_cmd to actually build a 'Label', then
-# use wmRelease in Populate to make it a toplevel.
-
-my $useWmRelease = Tk::Wm->can('release'); # ($^O ne 'MSWin32');
-
-sub Tk_cmd { ($useWmRelease) ? \&Tk::label : \&Tk::toplevel }
-
-Construct Tk::Widget 'DragDrop';
-
-use strict;
-use vars qw(%type @types);
-use Carp;
-
-
-# There is a snag with having a token window and moving to
-# exactly where cursor is - the cursor is "inside" the token
-# window - hence it is not "inside" the dropsite window
-# so we offset X,Y by OFFSET pixels.
-sub OFFSET () {3}
-
-sub ClassInit
-{
- my ($class,$mw) = @_;
- $mw->bind($class,'<Map>','Mapped');
- $mw->bind($class,'<Any-KeyPress>','Done');
- $mw->bind($class,'<Any-ButtonRelease>','Drop');
- $mw->bind($class,'<Any-Motion>','Drag');
- return $class;
-}
-
-sub Populate
-{
- my ($token,$args) = @_;
- my $parent = $token->parent;
- if ($useWmRelease)
- {
- $token->wmRelease;
- $token->ConfigSpecs(-text => ['SELF','text','Text',$parent->class]);
- }
- else
- {
- my $lab = $token->Label->pack(-expand => 1, -fill => 'both');
- bless $lab,ref($token);
- $lab->bindtags([ref($token), $lab, $token, 'all']);
- $token->ConfigSpecs(-text => [$lab,'text','Text',$parent->class],
- DEFAULT => [$lab]);
- }
- $token->withdraw;
- $token->overrideredirect(1);
- $token->ConfigSpecs(-sitetypes => ['METHOD','siteTypes','SiteTypes',undef],
- -startcommand => ['CALLBACK',undef,undef,undef],
- -endcommand => ['CALLBACK',undef,undef,undef],
- -predropcommand => ['CALLBACK',undef,undef,undef],
- -postdropcommand => ['CALLBACK',undef,undef,undef],
- -delta => ['PASSIVE','delta','Delta',10],
- -cursor => ['SELF','cursor','Cursor','hand2'],
- -handlers => ['SETMETHOD','handlers','Handlers',[[[$token,'SendText']]]],
- -selection => ['SETMETHOD','selection','Selection','XdndSelection'],
- -event => ['SETMETHOD','event','Event','<B1-Motion>']
- );
- $token->{InstallHandlers} = 0;
- $args->{-borderwidth} = 3;
- $args->{-relief} = 'flat';
- $args->{-takefocus} = 1;
-}
-
-sub sitetypes
-{
- my ($w,$val) = @_;
- confess "Not a widget $w" unless (ref $w);
- my $var = \$w->{Configure}{'-sitetypes'};
- if (@_ > 1)
- {
- if (defined $val)
- {
- $val = [$val] unless (ref $val);
- my $type;
- foreach $type (@$val)
- {
- Tk::DragDrop->import($type);
- }
- }
- $$var = $val;
- }
- return (defined $$var) ? $$var : \@types;
-}
-
-sub SendText
-{
- my ($w,$offset,$max) = @_;
- my $s = substr($w->cget('-text'),$offset);
- $s = substr($s,0,$max) if (length($s) > $max);
- return $s;
-}
-
-sub handlers
-{
- my ($token,$opt,$value) = @_;
- $token->{InstallHandlers} = (defined($value) && @$value);
- $token->{'handlers'} = $value;
-}
-
-sub selection
-{
- my ($token,$opt,$value) = @_;
- my $handlers = $token->{'handlers'};
- $token->{InstallHandlers} = (defined($handlers) && @$handlers);
-}
-
-sub event
-{
- my ($w,$opt,$value) = @_;
- # delete old bindings
- $w->parent->Tk::bind($value,[$w,'StartDrag']);
-}
-
-#
-
-sub FindSite
-{
- my ($token,$X,$Y,$e) = @_;
- my $site;
- my $types = $token->sitetypes;
- if (defined $types && @$types)
- {
- foreach my $type (@$types)
- {
- my $class = $type{$type};
- last if (defined($class) && ($site = $class->FindSite($token,$X,$Y)));
- }
- }
- else
- {
- warn 'No sitetypes';
- }
- my $new = $site || 'undef';
- my $over = $token->{'Over'};
- if ($over)
- {
- if (!$over->Match($site))
- {
- $over->Leave($token,$e);
- delete $token->{'Over'};
- }
- }
- if ($site)
- {
- unless ($token->{'Over'})
- {
- $site->Enter($token,$e);
- $token->{'Over'} = $site;
- }
- $site->Motion($token,$e) if (defined $site)
- }
- return $site;
-}
-
-sub Mapped
-{
- my ($token) = @_;
- my $e = $token->parent->XEvent;
- $token = $token->toplevel;
- $token->grabGlobal;
- $token->focus;
- if (defined $e)
- {
- my $X = $e->X;
- my $Y = $e->Y;
- $token->MoveToplevelWindow($X+OFFSET,$Y+OFFSET);
- $token->NewDrag;
- $token->FindSite($X,$Y,$e);
- }
-}
-
-sub NewDrag
-{
- my ($token) = @_;
- my $types = $token->sitetypes;
- if (defined $types && @$types)
- {
- my $type;
- foreach $type (@$types)
- {
- my $class = $type{$type};
- if (defined $class)
- {
- $class->NewDrag($token);
- }
- }
- }
-}
-
-sub Drag
-{
- my $token = shift;
- my $e = $token->XEvent;
- my $X = $e->X;
- my $Y = $e->Y;
- $token = $token->toplevel;
- $token->MoveToplevelWindow($X+OFFSET,$Y+OFFSET);
- $token->FindSite($X,$Y,$e);
-}
-
-sub Done
-{
- my $token = shift;
- my $e = $token->XEvent;
- $token = $token->toplevel;
- my $over = delete $token->{'Over'};
- $over->Leave($token,$e) if (defined $over);
- my $w = $token->parent;
- eval {local $SIG{__DIE__}; $token->grabRelease };
- $token->withdraw;
- delete $w->{'Dragging'};
- $w->update;
-}
-
-sub AcceptDrop
-{
- my ($token) = @_;
- $token->configure(-relief => 'sunken');
- $token->{'Accepted'} = 1;
-}
-
-sub RejectDrop
-{
- my ($token) = @_;
- $token->configure(-relief => 'flat');
- $token->{'Accepted'} = 0;
-}
-
-sub HandleLoose
-{
- my ($w,$seln) = @_;
- return '';
-}
-
-sub InstallHandlers
-{
- my ($token,$seln) = @_;
- my $w = $token->parent;
- $token->configure('-selection' => $seln) if $seln;
- $seln = $token->cget('-selection');
- if ($token->{InstallHandlers})
- {
- foreach my $h (@{$token->cget('-handlers')})
- {
- $w->SelectionHandle('-selection' => $seln,@$h);
- }
- $token->{InstallHandlers} = 0;
- }
- if (!$w->IS($w->SelectionOwner('-selection'=>$seln)))
- {
- $w->SelectionOwn('-selection' => $seln, -command => [\&HandleLoose,$w,$seln]);
- }
-}
-
-sub Drop
-{
- my $ewin = shift;
- my $e = $ewin->XEvent;
- my $token = $ewin->toplevel;
- my $site = $token->FindSite($e->X,$e->Y,$e);
- Tk::catch { $token->grabRelease };
- if (defined $site)
- {
- my $seln = $token->cget('-selection');
- unless ($token->Callback(-predropcommand => $seln, $site))
- {
-# XXX This is ugly if the user restarts a drag within the 2000 ms:
-# my $id = $token->after(2000,[$token,'Done']);
- my $w = $token->parent;
- $token->InstallHandlers;
- $site->Drop($token,$seln,$e);
- $token->Callback(-postdropcommand => $seln);
- $token->Done;
- }
- }
- else
- {
- $token->Done;
- }
- $token->Callback('-endcommand');
-}
-
-sub StartDrag
-{
- my $token = shift;
- my $w = $token->parent;
- unless ($w->{'Dragging'})
- {
- my $e = $w->XEvent;
- my $X = $e->X;
- my $Y = $e->Y;
- my $was = $token->{'XY'};
- if ($was)
- {
- my $dx = $was->[0] - $X;
- my $dy = $was->[1] - $Y;
- if (sqrt($dx*$dx+$dy*$dy) > $token->cget('-delta'))
- {
- unless ($token->Callback('-startcommand',$token,$e))
- {
- delete $token->{'XY'};
- $w->{'Dragging'} = $token;
- $token->MoveToplevelWindow($X+OFFSET,$Y+OFFSET);
- $token->raise;
- $token->deiconify;
- $token->FindSite($X,$Y,$e);
- }
- }
- }
- else
- {
- $token->{'XY'} = [$X,$Y];
- }
- }
-}
-
-
-1;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 01:07:27 +0000