diff options
Diffstat (limited to 'Perl/ZincText.pm')
| -rw-r--r-- | Perl/ZincText.pm | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/Perl/ZincText.pm b/Perl/ZincText.pm deleted file mode 100644 index 26ff038..0000000 --- a/Perl/ZincText.pm +++ /dev/null @@ -1,260 +0,0 @@ - -package ZincText; - - -sub new { - my $proto = shift; - my $type = ref($proto) || $proto; - my ($zinc) = @_; - my $self = {}; - - $zinc->bind('text', '<1>' => sub {startSel($zinc)}); - $zinc->bind('text', '<2>' => sub {pasteSel($zinc)}); - $zinc->bind('text', '<B1-Motion>' => sub {extendSel($zinc)}); - $zinc->bind('text', '<Shift-B1-Motion>' => sub {extendSel($zinc)}); - $zinc->bind('text', '<Shift-1>' => sub { - my $e = $zinc->XEvent(); - my($x, $y) = ($e->x, $e->y); - $zinc->select('adjust', 'current', "\@$x,$y"); }); - $zinc->bind('text', '<Left>' => sub {moveCur($zinc, -1);}); - $zinc->bind('text', '<Right>' => sub {moveCur($zinc, 1);}); - $zinc->bind('text', '<Up>' => sub {setCur($zinc, 'up');}); - $zinc->bind('text', '<Down>' => sub {setCur($zinc, 'down');}); - $zinc->bind('text', '<Control-a>' => sub {setCur($zinc, 'bol');}); - $zinc->bind('text', '<Home>' => sub {setCur($zinc, 'bol');}); - $zinc->bind('text', '<Control-e>' => sub {setCur($zinc, 'eol');}); - $zinc->bind('text', '<End>' => sub {setCur($zinc, 'eol');}); - $zinc->bind('text', '<Meta-less>' => sub {setCur($zinc, 0);}); - $zinc->bind('text', '<Meta-greater>' => sub {setCur($zinc, 'end');}); - $zinc->bind('text', '<KeyPress>' => sub {insertKey($zinc);}); - $zinc->bind('text', '<Shift-KeyPress>' => sub {insertKey($zinc);}); - $zinc->bind('text', '<Return>' => sub { insertChar($zinc, chr(10)); }); - $zinc->bind('text', '<BackSpace>' => sub {textDel($zinc, -1)}); - $zinc->bind('text', '<Control-h>' => sub {textDel($zinc, -1)}); - $zinc->bind('text', '<Delete>' => sub {textDel($zinc, 0)}); - - bless ($self, $type); - return $self; -} - - -sub pasteSel { - my ($w) = @_; - my $e = $w->XEvent; - my($x, $y) = ($e->x(), $e->y()); - my @it = $w->focus(); - - if (@it != 0) { - eval { $w->insert(@it, "\@$x,$y", $w->SelectionGet()); }; - } -} - - -sub insertChar { - my ($w, $c) = @_; - my @it = $w->focus(); - my @selit = $w->select('item'); - - if (@it == 0) { - return; - } - - if ((scalar(@selit) == scalar(@it)) && - ($selit[0] eq $it[0]) && ($selit[1] eq $it[1])) { - $w->dchars(@it, 'sel.first', 'sel.last'); - } - $w->insert(@it, 'insert', $c); -} - - -sub insertKey { - my ($w) = @_; - my $c = $w->XEvent->A(); - - if ((ord($c) < 32) || (ord($c) == 128)) { - return; - } - - insertChar($w, $c); -} - - -sub setCur { - my ($w, $where) = @_; - my @it = $w->focus(); - - if (@it != 0) { - $w->cursor(@it, $where); - } -} - - -sub moveCur { - my ($w, $dir) = @_; - my @it = $w->focus(); - my $index; - - if (@it != 0) { - $index = $w->index(@it, 'insert'); - $w->cursor(@it, $index + $dir); - } -} - - -sub startSel { - my($w) = @_; - my $e = $w->XEvent; - my($x, $y) = ($e->x(), $e->y()); - my $part = $w->currentpart(1); - - $w->cursor('current', $part, "\@$x,$y"); - $w->focus('current', $part); - $w->Tk::focus(); - $w->select('from', 'current', $part, "\@$x,$y"); -} - - -sub extendSel { - my($w) = @_; - my $e = $w->XEvent; - my($x, $y) = ($e->x, $e->y); - my $part = $w->currentpart(1); - - $w->select('to', 'current', $part, "\@$x,$y"); -} - - -sub textDel { - my($w, $dir) = @_; - my @it = $w->focus(); - my @selit = $w->select('item'); - my $ind; - - if (@it == 0) { - return; - } - - if ((scalar(@selit) == scalar(@it)) && - ($selit[0] eq $it[0]) && ($selit[1] eq $it[1])) { - $w->dchars(@it, 'sel.first', 'sel.last'); - } - else { - $ind = $w->index(@it, 'insert') + $dir; - $w->dchars(@it, $ind, $ind) if ($ind >= 0); - } -} - -1; -__END__ - -=head1 NAME - -ZincText - Zinc extension for easing text input on text item or on fields - -=head1 SYNOPSIS - - use ZincText; - - $zinc = $mw->Zinc(); - new ZincText ($zinc); - .... - $zinc->addtag('text', 'withtag', $a_text); - $zinc->addtag('text', 'withtag', $a_track); - $zinc->addtag('text', 'withtag', $a_waypoint); - $zinc->addtag('text', 'withtag', $a_tabular); - -=head1 DESCRIPTION - -This module implements text input with the mouse and keyboard 'a la emacs'. -Text items must have the 'text' tag and must of course be sensitive. -Track, waypoint and tabular items have fields and these fields can -be edited the same way. Only sensitive fields can be edited. the following -interactions are supported: - -=over 2 - -=item B<click 1> - -To set the cursor position - -=item B<click 2> - -To paste the current selection - -=item B<drag 1> - -To make a selection - -=item B<shift drag 1> - -To extend the current selection - -=item B<shift 1> - -To extend the current selection - -=item B<left arrow>, B<right arrow> - -To move the cursor to the left or to the right - -=item B<up arrow>, B<down arrow> - -To move the cursor up or down a line - -=item B<ctrl+a>, B<home> - -To move the cursor at the begining of the line - -=item B<ctrl+e>, B<end> - -To move the cursor at the end of the line - -=item B<meta+<>, B<meta+E<gt>> - -To move the cursor at the beginning / end of the text - -=item B<BackSpace>, B<ctrl+h> - -To delete the char just before the cursor - -=item B<Delete> - -To delete the char just after the cursor - -=item B<Return> - -To insert a return char. This does not validate the input! - -=back - -=head1 BUGS - -No known bugs at this time. If you find one, please report them to the authors. - -=head1 SEE ALSO - -perl(1), Tk(1), Tk::Zinc(3), zinc-demos(1) - -=head1 AUTHORS - -Patrick Lecoanet <lecoanet@cena.fr> -(and some documentation by Christophe Mertz <mertz@cena.fr>) - -=head1 COPYRIGHT - -CENA (C) 2002 - -ZincText is part of Zinc and has been developed by the CENA (Centres d'Etudes de la Navigation Aérienne) -for its own needs in advanced HMI (Human Machine Interfaces or Interactions). Because we are confident -in the benefit of free software, the CENA delivered this toolkit under the GNU -Library General Public License. - -This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even -the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library -General Public License for more details. - -=head1 HISTORY - -June 2002 : initial release with Zinc-perl 3.2.6 - -=cut |