From b645030efc22e13c2498a1522083634ab91b2de1 Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Wed, 12 May 2010 16:51:27 +0000 Subject: move tlperl to tlperl.old git-svn-id: svn://tug.org/texlive/trunk@18209 c570f23f-e606-0410-a88d-b1316a301751 --- Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm | 429 ++++++++++++++++++++++++++++ 1 file changed, 429 insertions(+) create mode 100644 Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm (limited to 'Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm') diff --git a/Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm b/Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm new file mode 100644 index 00000000000..6b416e04b30 --- /dev/null +++ b/Master/tlpkg/tlperl.old/lib/Tk/Scrollbar.pm @@ -0,0 +1,429 @@ +# Conversion from Tk4.0 scrollbar.tcl competed. +package Tk::Scrollbar; + +use vars qw($VERSION); +$VERSION = '4.010'; # $Id: //depot/Tkutf8/Scrollbar/Scrollbar.pm#10 $ + +use Tk qw($XS_VERSION Ev); +use AutoLoader; + +use base qw(Tk::Widget); + +#use strict; +#use vars qw($pressX $pressY @initValues $initPos $activeBg); + +Construct Tk::Widget 'Scrollbar'; + +bootstrap Tk::Scrollbar; + +sub Tk_cmd { \&Tk::scrollbar } + +Tk::Methods('activate','delta','fraction','get','identify','set'); + +sub Needed +{ + my ($sb) = @_; + my @val = $sb->get; + return 1 unless (@val == 2); + return 1 if $val[0] != 0.0; + return 1 if $val[1] != 1.0; + return 0; +} + + +sub ClassInit +{ + my ($class,$mw) = @_; + $mw->bind($class, '', 'Enter'); + $mw->bind($class, '', 'Motion'); + $mw->bind($class, '', 'Leave'); + + $mw->bind($class, '<1>', 'ButtonDown'); + $mw->bind($class, '', ['Drag', Ev('x'), Ev('y')]); + $mw->bind($class, '', 'ButtonUp'); + $mw->bind($class, '', 'NoOp'); # prevent generic + $mw->bind($class, '', 'NoOp'); # prevent generic + $mw->bind($class, '', 'ScrlTopBottom'); + + $mw->bind($class, '<2>', 'ButtonDown'); + $mw->bind($class, '', ['Drag', Ev('x'), Ev('y')]); + $mw->bind($class, '', 'ButtonUp'); + $mw->bind($class, '', 'NoOp'); # prevent generic + $mw->bind($class, '', 'NoOp'); # prevent generic + $mw->bind($class, '', 'ScrlTopBottom'); + + $mw->bind($class, '', ['ScrlByUnits','v',-1]); + $mw->bind($class, '', ['ScrlByUnits','v', 1]); + $mw->bind($class, '', ['ScrlByPages','v',-1]); + $mw->bind($class, '', ['ScrlByPages','v', 1]); + + $mw->bind($class, '', ['ScrlByUnits','h',-1]); + $mw->bind($class, '', ['ScrlByUnits','h', 1]); + $mw->bind($class, '', ['ScrlByPages','h',-1]); + $mw->bind($class, '', ['ScrlByPages','h', 1]); + + $mw->bind($class, '', ['ScrlByPages','hv',-1]); + $mw->bind($class, '', ['ScrlByPages','hv', 1]); + + # X11 mousewheel - honour for horizontal too. + $mw->bind($class, '<4>', ['ScrlByUnits','hv',-5]); + $mw->bind($class, '<5>', ['ScrlByUnits','hv', 5]); + + $mw->bind($class, '', ['ScrlToPos', 0]); + $mw->bind($class, '', ['ScrlToPos', 1]); + + $mw->bind($class, '<4>', ['ScrlByUnits','v',-3]); + $mw->bind($class, '<5>', ['ScrlByUnits','v', 3]); + + return $class; + +} + +1; + +__END__ + +sub Enter +{ + my $w = shift; + my $e = $w->XEvent; + if ($Tk::strictMotif) + { + my $bg = $w->cget('-background'); + $activeBg = $w->cget('-activebackground'); + $w->configure('-activebackground' => $bg); + } + $w->activate($w->identify($e->x,$e->y)); +} + +sub Leave +{ + my $w = shift; + if ($Tk::strictMotif) + { + $w->configure('-activebackground' => $activeBg) if (defined $activeBg) ; + } + $w->activate(''); +} + +sub Motion +{ + my $w = shift; + my $e = $w->XEvent; + $w->activate($w->identify($e->x,$e->y)); +} + +# tkScrollButtonDown -- +# This procedure is invoked when a button is pressed in a scrollbar. +# It changes the way the scrollbar is displayed and takes actions +# depending on where the mouse is. +# +# Arguments: +# w - The scrollbar widget. +# x, y - Mouse coordinates. + +sub ButtonDown +{my $w = shift; + my $e = $w->XEvent; + my $element = $w->identify($e->x,$e->y); + $w->configure('-activerelief' => 'sunken'); + if ($e->b == 1 and + (defined($element) && $element eq 'slider')) + { + $w->StartDrag($e->x,$e->y); + } + elsif ($e->b == 2 and + (defined($element) && $element =~ /^(trough[12]|slider)$/o)) + { + my $pos = $w->fraction($e->x, $e->y); + my($head, $tail) = $w->get; + my $len = $tail - $head; + + $head = $pos - $len/2; + $tail = $pos + $len/2; + if ($head < 0) { + $head = 0; + $tail = $len; + } + elsif ($tail > 1) { + $head = 1 - $len; + $tail = 1; + } + $w->ScrlToPos($head); + $w->set($head, $tail); + + $w->StartDrag($e->x,$e->y); + } + else + { + $w->Select($element,'initial'); + } +} + +# tkScrollButtonUp -- +# This procedure is invoked when a button is released in a scrollbar. +# It cancels scans and auto-repeats that were in progress, and restores +# the way the active element is displayed. +# +# Arguments: +# w - The scrollbar widget. +# x, y - Mouse coordinates. + +sub ButtonUp +{my $w = shift; + my $e = $w->XEvent; + $w->CancelRepeat; + $w->configure('-activerelief' => 'raised'); + $w->EndDrag($e->x,$e->y); + $w->activate($w->identify($e->x,$e->y)); +} + +# tkScrollSelect -- +# This procedure is invoked when button 1 is pressed over the scrollbar. +# It invokes one of several scrolling actions depending on where in +# the scrollbar the button was pressed. +# +# Arguments: +# w - The scrollbar widget. +# element - The element of the scrollbar that was selected, such +# as "arrow1" or "trough2". Shouldn't be "slider". +# repeat - Whether and how to auto-repeat the action: "noRepeat" +# means don't auto-repeat, "initial" means this is the +# first action in an auto-repeat sequence, and "again" +# means this is the second repetition or later. + +sub Select +{ + my $w = shift; + my $element = shift; + my $repeat = shift; + return unless defined ($element); + if ($element eq 'arrow1') + { + $w->ScrlByUnits('hv',-1); + } + elsif ($element eq 'trough1') + { + $w->ScrlByPages('hv',-1); + } + elsif ($element eq 'trough2') + { + $w->ScrlByPages('hv', 1); + } + elsif ($element eq 'arrow2') + { + $w->ScrlByUnits('hv', 1); + } + else + { + return; + } + + if ($repeat eq 'again') + { + $w->RepeatId($w->after($w->cget('-repeatinterval'),['Select',$w,$element,'again'])); + } + elsif ($repeat eq 'initial') + { + $w->RepeatId($w->after($w->cget('-repeatdelay'),['Select',$w,$element,'again'])); + } +} + +# tkScrollStartDrag -- +# This procedure is called to initiate a drag of the slider. It just +# remembers the starting position of the slider. +# +# Arguments: +# w - The scrollbar widget. +# x, y - The mouse position at the start of the drag operation. + +sub StartDrag +{ + my($w,$x,$y) = @_; + return unless (defined ($w->cget('-command'))); + $pressX = $x; + $pressY = $y; + @initValues = $w->get; + my $iv0 = $initValues[0]; + if (@initValues == 2) + { + $initPos = $iv0; + } + elsif ($iv0 == 0) + { + $initPos = 0; + } + else + { + $initPos = $initValues[2]/$initValues[0]; + } +} + +# tkScrollDrag -- +# This procedure is called for each mouse motion even when the slider +# is being dragged. It notifies the associated widget if we're not +# jump scrolling, and it just updates the scrollbar if we are jump +# scrolling. +# +# Arguments: +# w - The scrollbar widget. +# x, y - The current mouse position. + +sub Drag +{ + my($w,$x,$y) = @_; + return if !defined $initPos; + my $delta = $w->delta($x-$pressX, $y-$pressY); + if ($w->cget('-jump')) + { + if (@initValues == 2) + { + $w->set($initValues[0]+$delta, $initValues[1]+$delta); + } + else + { + $delta = sprintf "%d", $delta * $initValues[0]; # round() + $initValues[2] += $delta; + $initValues[3] += $delta; + $w->set(@initValues[2,3]); + } + } + else + { + $w->ScrlToPos($initPos+$delta); + } +} + +# tkScrollEndDrag -- +# This procedure is called to end an interactive drag of the slider. +# It scrolls the window if we're in jump mode, otherwise it does nothing. +# +# Arguments: +# w - The scrollbar widget. +# x, y - The mouse position at the end of the drag operation. + +sub EndDrag +{ + my($w,$x,$y) = @_; + return if (!defined $initPos); + if ($w->cget('-jump')) + { + my $delta = $w->delta($x-$pressX, $y-$pressY); + $w->ScrlToPos($initPos+$delta); + } + undef $initPos; +} + +# tkScrlByUnits -- +# This procedure tells the scrollbar's associated widget to scroll up +# or down by a given number of units. It notifies the associated widget +# in different ways for old and new command syntaxes. +# +# Arguments: +# w - The scrollbar widget. +# orient - Which kinds of scrollbars this applies to: "h" for +# horizontal, "v" for vertical, "hv" for both. +# amount - How many units to scroll: typically 1 or -1. + +sub ScrlByUnits +{my $w = shift; + my $orient = shift; + my $amount = shift; + my $cmd = $w->cget('-command'); + return unless (defined $cmd); + return if (index($orient,substr($w->cget('-orient'),0,1)) < 0); + my @info = $w->get; + if (@info == 2) + { + $cmd->Call('scroll',$amount,'units'); + } + else + { + $cmd->Call($info[2]+$amount); + } +} + +# tkScrlByPages -- +# This procedure tells the scrollbar's associated widget to scroll up +# or down by a given number of screenfuls. It notifies the associated +# widget in different ways for old and new command syntaxes. +# +# Arguments: +# w - The scrollbar widget. +# orient - Which kinds of scrollbars this applies to: "h" for +# horizontal, "v" for vertical, "hv" for both. +# amount - How many screens to scroll: typically 1 or -1. + +sub ScrlByPages +{ + my $w = shift; + my $orient = shift; + my $amount = shift; + my $cmd = $w->cget('-command'); + return unless (defined $cmd); + return if (index($orient,substr($w->cget('-orient'),0,1)) < 0); + my @info = $w->get; + if (@info == 2) + { + $cmd->Call('scroll',$amount,'pages'); + } + else + { + $cmd->Call($info[2]+$amount*($info[1]-1)); + } +} + +# tkScrlToPos -- +# This procedure tells the scrollbar's associated widget to scroll to +# a particular location, given by a fraction between 0 and 1. It notifies +# the associated widget in different ways for old and new command syntaxes. +# +# Arguments: +# w - The scrollbar widget. +# pos - A fraction between 0 and 1 indicating a desired position +# in the document. + +sub ScrlToPos +{ + my $w = shift; + my $pos = shift; + my $cmd = $w->cget('-command'); + return unless (defined $cmd); + my @info = $w->get; + if (@info == 2) + { + $cmd->Call('moveto',$pos); + } + else + { + $cmd->Call(int($info[0]*$pos)); + } +} + +# tkScrlTopBottom +# Scroll to the top or bottom of the document, depending on the mouse +# position. +# +# Arguments: +# w - The scrollbar widget. +# x, y - Mouse coordinates within the widget. + +sub ScrlTopBottom +{ + my $w = shift; + my $e = $w->XEvent; + my $element = $w->identify($e->x,$e->y); + return unless ($element); + if ($element =~ /1$/) + { + $w->ScrlToPos(0); + } + elsif ($element =~ /2$/) + { + $w->ScrlToPos(1); + } +} + + + + -- cgit v1.2.3