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- package Tk::HList;
- use Tk qw(Ev);
-
- @ISA = qw(Tk::Widget);
-
- Construct Tk::Widget 'HList';
- sub Tk::Widget::ScrlHList { shift->Scrolled('HList'=>@_) }
-
- bootstrap Tk::HList $Tk::VERSION;
-
- sub Tk_cmd { \&Tk::hlist }
-
- sub CreateArgs
- {
- my ($package,$parent,$args) = @_;
- my @result = $package->SUPER::CreateArgs($parent,$args);
- my $columns = delete $args->{-columns};
- push(@result, '-columns' => $columns) if (defined $columns);
- return @result;
- }
-
- EnterMethods Tk::HList __FILE__,qw(add addchild anchor column
- delete dragsite dropsite entrycget
- entryconfigure geometryinfo indicator hide item info
- nearest see select selection show xview yview);
-
- use Tk::Submethods ( 'delete' => [qw(all entry offsprings siblings)],
- 'header' => [qw(configure cget create delete exists size)],
- 'indicator' => [qw(configure cget create delete exists size)],
- 'info' => [qw(anchor bbox children data dragsite
- dropsite exists hidden item next parent prev)],
- 'item' => [qw(configure cget create delete exists)],
- 'selection' => [qw(clear get includes set)],
- 'anchor' => [qw(clear set)],
- );
-
-
- sub ClassInit
- {
- my ($class,$mw) = @_;
-
- $mw->bind($class,'<ButtonPress-1>',[ 'Button1' ] );
- $mw->bind($class,'<Shift-ButtonPress-1>',[ 'ShiftButton1' ] );
- $mw->bind($class,'<Control-ButtonRelease-1>', sub {} );
- $mw->bind($class,'<ButtonRelease-1>',
- sub
- {
- my $w = shift;
- my $Ev = $w->XEvent;
- $w->CancelRepeat
- if($w->cget('-selectmode') ne "dragdrop");
- $w->ButtonRelease1($Ev);
- });
- $mw->bind($class,'<B1-Motion>',[ 'Button1Motion' ] );
- $mw->bind($class,'<B1-Leave>',[ 'AutoScan' ] );
-
- $mw->bind($class,'<Double-ButtonPress-1>',['Double1']);
-
- $mw->bind($class,'<Control-B1-Motion>', sub {} );
- $mw->bind($class,'<Control-ButtonPress-1>',['CtrlButton1']);
- $mw->bind($class,'<Control-Double-ButtonPress-1>',['CtrlButton1']);
-
- $mw->bind($class,'<B1-Enter>',
- sub
- {
- my $w = shift;
- my $Ev = $w->XEvent;
- $w->CancelRepeat
- if($w->cget('-selectmode') ne "dragdrop");
- });
-
- $mw->bind($class,'<Up>',['UpDown', 'prev']);
- $mw->bind($class,'<Down>',['UpDown', 'next']);
-
- $mw->bind($class,'<Shift-Up>',['ShiftUpDown', 'prev']);
- $mw->bind($class,'<Shift-Down>',['ShiftUpDown', 'next']);
-
- $mw->bind($class,'<Left>', ['LeftRight', 'left']);
- $mw->bind($class,'<Right>',['LeftRight', 'right']);
-
- $mw->bind($class,'<Prior>', sub {shift->yview('scroll', -1, 'pages') } );
- $mw->bind($class,'<Next>', sub {shift->yview('scroll', 1, 'pages') } );
-
- $mw->bind($class,'<Return>', ['KeyboardActivate']);
- $mw->bind($class,'<space>', ['KeyboardBrowse']);
- $mw->bind($class,'<Home>', ['KeyboardHome']);
-
- return $class;
- }
-
- sub Button1
- {
- my $w = shift;
- my $Ev = $w->XEvent;
-
- delete $w->{'shiftanchor'};
-
- $w->focus()
- if($w->cget("-takefocus"));
-
- my $mode = $w->cget("-selectmode");
-
- if ($mode eq "dragdrop")
- {
- # $w->Send_WaitDrag($Ev->y);
- return;
- }
-
- my $ent = $w->GetNearest($Ev->y);
-
- return unless( $ent );
-
- my @info = $w->info('item',$Ev->x, $Ev->y);
-
- if (defined($info[1]) && $info[1] eq 'indicator')
- {
- $w->Callback(-indicatorcmd => $ent);
- }
- else
- {
- my $browse = 0;
-
- if($mode eq "single")
- {
- $w->anchor('set', $ent);
- }
- elsif($mode eq "browse")
- {
- $w->anchor('set', $ent);
- $w->select('clear' );
- $w->select('set', $ent);
- $browse = 1;
- }
- elsif($mode eq "multiple")
- {
- $w->select('clear');
- $w->anchor('set', $ent);
- $w->select('set', $ent);
- $browse = 1;
- }
- elsif($mode eq "extended")
- {
- $w->anchor('set', $ent);
- $w->select('clear');
- $w->select('set', $ent);
- $browse = 1;
- }
-
- if ($browse)
- {
- $w->Callback(-browsecmd => $ent);
- }
- }
- }
-
- sub ShiftButton1
- {
- my $w = shift;
- my $Ev = $w->XEvent;
-
- my $to = $w->GetNearest($Ev->y);
-
- delete $w->{'shiftanchor'};
-
- return unless($to);
-
- my $mode = $w->cget('-selectmode');
-
- if($mode eq "extended")
- {
- my $from = $w->info('anchor');
- if($from)
- {
- $w->select('clear');
- $w->select('set', $from, $to);
- }
- else
- {
- $w->anchor('set', $to);
- $w->select('clear');
- $w->select('set', $to);
- }
- }
- }
-
- sub GetNearest
- {
- my ($w,$y) = @_;
- my $ent = $w->nearest($y);
- if (defined $ent)
- {
- my $state = $w->entrycget($ent, '-state');
- return $ent if (!defined($state) || $state ne 'disabled');
- }
- return undef;
- }
-
- sub ButtonRelease1
- {
- my ($w, $Ev) = @_;
-
- delete $w->{'shiftanchor'};
-
- my $mode = $w->cget('-selectmode');
-
- if($mode eq "dragdrop")
- {
- # $w->Send_DoneDrag();
- return;
- }
-
- my ($x, $y) = ($Ev->x, $Ev->y);
- my $ent = $w->GetNearest($y);
-
- return unless($ent);
-
- if($x < 0 || $y < 0 || $x > $w->width || $y > $w->height)
- {
- $w->select('clear');
-
- return if($mode eq "single" || $mode eq "browse")
-
- }
- else
- {
- if($mode eq "single" || $mode eq "browse")
- {
- $w->anchor('set', $ent);
- $w->select('clear');
- $w->select('set', $ent);
-
- }
- elsif($mode eq "multiple")
- {
- $w->select('set', $ent);
- }
- elsif($mode eq "extended")
- {
- $w->select('set', $ent);
- }
- }
-
- $w->Callback(-browsecmd =>$ent);
- }
-
- sub Button1Motion
- {
- my $w = shift;
- my $Ev = $w->XEvent;
-
- delete $w->{'shiftanchor'};
-
- my $mode = $w->cget('-selectmode');
-
- if ($mode eq "dragdrop")
- {
- # $w->Send_StartDrag();
- return;
- }
-
- my $ent = $w->GetNearest($Ev->y);
-
- return unless($ent);
-
- if($mode eq "single")
- {
- $w->anchor('set', $ent);
- }
- elsif($mode eq "multiple" || $mode eq "extended")
- {
- my $from = $w->info('anchor');
- if($from)
- {
- $w->select('clear');
- $w->select('set', $from, $ent);
- }
- else
- {
- $w->anchor('set', $ent);
- $w->select('clear');
- $w->select('set', $ent);
- }
- }
-
- if($mode ne "single")
- {
- $w->Callback(-browsecmd =>$ent);
- }
- }
-
- sub Double1
- {
- my $w = shift;
- my $Ev = $w->XEvent;
-
- delete $w->{'shiftanchor'};
-
- my $ent = $w->GetNearest($Ev->y);
-
- return unless($ent);
-
- $w->anchor('set', $ent)
- unless($w->info('anchor'));
-
- $w->select('set', $ent);
- $w->Callback(-command => $ent);
- }
-
- sub CtrlButton1
- {
- my $w = shift;
- my $Ev = $w->XEvent;
-
- delete $w->{'shiftanchor'};
-
- my $ent = $w->GetNearest($Ev->y);
-
- return unless( $ent );
-
- my $mode = $w->cget('-selectmode');
-
- if($mode eq "extended")
- {
- $w->anchor('set', $ent) unless( $w->info('anchor') );
-
- if($w->select('includes', $ent))
- {
- $w->select('clear', $ent);
- }
- else
- {
- $w->select('set', $ent);
- }
- $w->Callback(-browsecmd =>$ent);
- }
- }
-
- sub UpDown
- {
- my $w = shift;
- my $spec = shift;
-
- my $done = 0;
- my $anchor = $w->info('anchor');
-
- delete $w->{'shiftanchor'};
-
- unless( $anchor )
- {
- $anchor = ($w->info('children'))[0] || "";
-
- return unless( $anchor );
-
- if($w->entrycget($anchor, '-state') ne "disabled")
- {
- # That's a good anchor
- $done = 1;
- }
- else
- {
- # We search for the first non-disabled entry (downward)
- $spec = 'next';
- }
- }
-
- my $ent = $anchor;
-
- # Find the prev/next non-disabled entry
- #
- while(!$done)
- {
- $ent = $w->info($spec, $ent);
- last unless( $ent );
- next if( $w->entrycget($ent, '-state') eq "disabled" );
- next if( $w->info('hidden', $ent) );
- last;
- }
-
- unless( $ent )
- {
- $w->yview('scroll', $spec eq 'prev' ? -1 : 1, 'unit');
- return;
- }
-
- $w->anchor('set', $ent);
- $w->see($ent);
-
- if($w->cget('-selectmode') ne "single")
- {
- $w->select('clear');
- $w->selection('set', $ent);
- $w->Callback(-browsecmd =>$ent);
- }
- }
-
- sub ShiftUpDown
- {
- my $w = shift;
- my $spec = shift;
-
- my $mode = $w->cget('-selectmode');
-
- return $w->UpDown($spec)
- if($mode eq "single" || $mode eq "browse");
-
- my $anchor = $w->info('anchor');
-
- return $w->UpDown($spec) unless( $anchor );
-
- my $done = 0;
-
- $w->{'shiftanchor'} = $anchor unless( $w->{'shiftanchor'} );
-
- my $ent = $w->{'shiftanchor'};
-
- while( !$done )
- {
- $ent = $w->info($spec, $ent);
- last unless( $ent );
- next if( $w->entrycget($ent, '-state') eq "disabled" );
- next if( $w->info('hidden', $ent) );
- last;
- }
-
- unless( $ent )
- {
- $w->yview('scroll', $spec eq 'prev' ? -1 : 1, 'unit');
- return;
- }
-
- $w->select('clear');
- $w->selection('set', $anchor, $ent);
- $w->see($ent);
-
- $w->{'shiftanchor'} = $ent;
-
- $w->Callback(-browsecmd =>$ent);
- }
-
- sub LeftRight
- {
- my $w = shift;
- my $spec = shift;
-
- delete $w->{'shiftanchor'};
-
- my $anchor = $w->info('anchor');
-
- unless($anchor)
- {
- $anchor = ($w->info('children'))[0] || "";
- }
-
- my $done = 0;
- my $ent = $anchor;
-
- while(!$done)
- {
- my $e = $ent;
-
- if($spec eq "left")
- {
- $ent = $w->info('parent', $e);
-
- $ent = $w->info('prev', $e)
- unless($ent && $w->entrycget($ent, '-state') ne "disabled")
- }
- else
- {
- $ent = ($w->info('children', $e))[0];
-
- $ent = $w->info('next', $e)
- unless($ent && $w->entrycget($ent, '-state') ne "disabled")
- }
-
- last unless( $ent );
- last if($w->entrycget($ent, '-state') ne "disabled");
- }
-
- unless( $ent )
- {
- $w->xview('scroll', $spec eq "left" ? -1 : 1, 'unit');
- return;
- }
-
- $w->anchor('set', $ent);
- $w->see($ent);
-
- if($w->cget('-selectmode') ne "single")
- {
- $w->select('clear');
- $w->selection('set', $ent);
-
- $w->Callback(-browsecmd =>$ent);
- }
- }
-
- sub KeyboardActivate
- {
- my $w = shift;
-
- my $anchor = $w->info('anchor');
-
- return unless( $anchor );
-
- if($w->cget('-selectmode'))
- {
- $w->select('clear');
- $w->select('set', $anchor);
- }
- $w->Callback(-command => $anchor);
- }
-
- sub KeyboardBrowse
- {
- my $w = shift;
-
- my $anchor = $w->info('anchor');
-
- return unless( $anchor );
-
- if ($w->indicatorExists($anchor))
- {
- $w->Callback(-indicatorcmd => $anchor);
- }
-
- if($w->cget('-selectmode'))
- {
- $w->select('clear');
- $w->select('set', $anchor);
- }
- $w->Callback(-browsecmd =>$anchor);
- }
-
- sub AutoScan
- {
- my $w = shift;
-
- return if($w->cget('-selectmode') eq "dragdrop");
-
- my $Ev = $w->XEvent;
- my $y = $Ev->y;
- my $x = $Ev->x;
-
- if($y >= $w->height)
- {
- $w->yview('scroll', 1, 'units');
- }
- elsif($y < 0)
- {
- $w->yview('scroll', -1, 'units');
- }
- elsif($x >= $w->width)
- {
- $w->xview('scroll', 2, 'units');
- }
- elsif($x < 0)
- {
- $w->xview('scroll', -2, 'units');
- }
- else
- {
- return;
- }
- $w->RepeatId($w->after(50,"AutoScan",$w));
- $w->Button1Motion;
- }
-
- sub children
- {
- # Tix has core-tk window(s) which are not a widget(s)
- # the generic code returns these as an "undef"
- my $w = shift;
- my @info = grep(defined($_),$w->winfo('children'));
- @info;
- }
-
- 1;
-
-