CLIX - Fazer Clix Custa Nix/CLIX-CD.cdr/mac/lib/Mac/TextEdit.pm

Text File | 1998-04-05 | 8KB | 462 lines

=head1 NAME

Mac::TextEdit - Macintosh Toolbox Interface to TextEdit

=head1 SYNOPSIS


=head1 DESCRIPTION

Access to Inside Macintosh is essential for proper use of these functions.
Explanations of terms, processes and procedures are provided there.
Any attempt to use these functions without guidance can cause severe errors in
your machine, including corruption of data. B<You have been warned.>

=cut

use strict;

package Mac::TextEdit;

BEGIN {
    use Exporter   ();
    use DynaLoader ();

    use vars qw(@ISA @EXPORT);

    @ISA = qw(Exporter DynaLoader);
    @EXPORT = qw(
        TEScrapHandle
        TEGetScrapLength
        TENew
        TEDispose
        TESetText
        TEGetText
        TEIdle
        TESetSelect
        TEActivate
        TEDeactivate
        TEKey
        TECut
        TECopy
        TEPaste
        TEDelete
        TEInsert
        TESetAlignment
        TEUpdate
        TETextBox
        TEScroll
        TESelView
        TEPinScroll
        TEAutoView
        TECalText
        TEGetOffset
        TEGetPoint
        TEClick
        TEStyleNew
        TESetStyleHandle
        TEGetStyleHandle
        TEGetStyle
        TEStylePaste
        TESetStyle
        TEReplaceStyle
        TEGetStyleScrapHandle
        TEStyleInsert
        TEGetHeight
        TEContinuousStyle
        TEUseStyleScrap
        TENumStyles
        TEFeatureFlag
        TESetScrapLength
        TEFromScrap
        TEToScrap

        teFlushDefault
        teCenter
        teFlushRight
        teFlushLeft
        doFont
        doFace
        doSize
        doColor
        doAll
        addSize
        doToggle
        teFAutoScroll
        teFTextBuffering
        teFOutlineHilite
        teFInlineInput
        teFUseInlineInput
        teFInlineInputAutoScroll
        teBitClear
        teBitSet
        teBitTest
        teWordSelect
        teWordDrag
        teFromFind
        teFromRecal
        teFind
        teHighlight
        teDraw
        teCaret
        teFUseTextServices
    );
}

bootstrap Mac::TextEdit;

=head2 Constants

=over 4

=item teFlushDefault

=item teCenter

=item teFlushRight

=item teFlushLeft

Text alignment constants.

=cut
sub teFlushDefault ()              {          0; }
sub teCenter ()                    {          1; }
sub teFlushRight ()                {         -1; }
sub teFlushLeft ()                 {         -2; }

=item doFont

=item doFace

=item doSize

=item doColor

=item doAll

=item addSize

=item doToggle

Constants for C<TEContinuousStyle>.

=cut
sub doFont ()                      {          1; }
sub doFace ()                      {          2; }
sub doSize ()                      {          4; }
sub doColor ()                     {          8; }
sub doAll ()                       {         15; }
sub addSize ()                     {         16; }
sub doToggle ()                    {         32; }

=item teFAutoScroll

=item teFTextBuffering

=item teFOutlineHilite

=item teFInlineInput

=item teFUseTextServices

=item teFUseInlineInput

=item teFInlineInputAutoScroll

=item teBitClear

=item teBitSet

=item teBitTest

Features.

=cut
sub teFAutoScroll ()               {          0; }
sub teFTextBuffering ()            {          1; }
sub teFOutlineHilite ()            {          2; }
sub teFInlineInput ()              {          3; }
sub teFUseTextServices ()          {          4; }
sub teFUseInlineInput ()           {          5; }
sub teFInlineInputAutoScroll ()    {          6; }
sub teBitClear ()                  {          0; }
sub teBitSet ()                    {          1; }
sub teBitTest ()                   {         -1; }

sub teWordSelect ()                {          4; }
sub teWordDrag ()                  {          8; }
sub teFromFind ()                  {         12; }
sub teFromRecal ()                 {         16; }
sub teFind ()                      {          0; }
sub teHighlight ()                 {          1; }
sub teDraw ()                      {         -1; }
sub teCaret ()                     {         -2; }

=include TextEdit.xs

=head2 Extension to MacWindow

=over 4

=cut
package MacWindow;

BEGIN {
    use Carp;
    use Mac::QuickDraw qw(SetPort);
    import Mac::TextEdit;
}

=item new_textedit [CLASS, ] HTE

=item new_textedit [CLASS, ] DESTRECT, VIEWRECT

Create a new text editing field, attach it to the window, and return it. In the
first form,  registers an existing text editing field. In the second form, calls
C<TENew>.

=cut
sub new_textedit {
    my($my) = shift @_;
    my($type) = @_;
    my($class,$edit);

    if (ref($type)) {
        $class = "MacTextEdit"
    } else {
        $class = shift @_;
        $type  = $_[0];
    }
    if (ref($type) eq "TEHandle") {
        $edit = $type;
    } else {
        SetPort($my->{port});
        $edit = TENew(@_) or croak "TENew failed";
    }
    $class->new($my, $edit);
}

=item new_textedit_style [CLASS, ] DESTRECT, VIEWRECT

Create a new styled text editing field, attach it to the window, and return it.

=cut
sub new_textedit_style {
    my($my) = shift @_;
    my($type) = @_;
    my($class,$edit);

    if (ref($type)) {
        $class = "MacTextEdit"
    } else {
        $class = shift @_;
        $type  = $_[0];
    }
    if (ref($type) eq "TEHandle") {
        $edit = $type;
    } else {
        SetPort($my->{port});
        $edit = TEStyleNew(@_) or croak "TEStyleNew failed";
    }
    $class->new($my, $edit);
}

=back

=head2 MacTextEdit - The object interface to a text editing field

MacTextEdit is a TextEdit field embedded into a pane.

=cut
package MacTextEdit;

BEGIN {
    use Mac::Hooks ();
    use Mac::QuickDraw;
    use Mac::Pane;
    use Mac::Events;
    use Mac::Windows();
    import Mac::TextEdit;

    use vars qw(@ISA);

    @ISA = qw(Mac::Pane Mac::Hooks);
}

=item new WINDOW, CONTROL

Initialize a C<MacTextEdit> (which is always created with
C<MacWindow::new_textedit>).

=cut
sub new {
    my($class, $window, $edit) = @_;

    my(%vars) = (window => $window, edit => $edit);

    my $me = bless \%vars, $class;

    $window->add_pane($me);
    $window->add_focusable($me);
    $window->add_idle($me, 1);

    $me;
}

=item dispose

Dispose of the toolbox edit.

=cut
sub dispose {
    my($my) = @_;
    TEDispose($my->{edit}) if $my->{edit};
    delete $my->{edit};
}

=item DESTROY

Destroys the C<MacList>.

=cut
sub DESTROY {
    dispose(@_);
}

=item edit

Get the toolbox TextEdit handle.

=cut
sub edit {
    my($my) = @_;

    $my->{edit};
}

=item attach(WINDOW)

Called by MacWindow to indicate that the pane has just been attached.

=cut
sub attach {
    my($my, $window) = @_;

    $window->{edits}->{${$my->{edit}}} = $my;
}

=item detach(WINDOW)

Called by MacWindow to indicate that the pane has just been detached.

=cut
sub detach {
    my($my, $window) = @_;

    delete $window->{edits}->{${$my->{edit}}};
    dispose(@_);
}

=item focus(WINDOW, FOCUS)

Called by MacWindow to indicate that the edit has acquired (1) or lost (0) the
focus.

=cut
sub focus {
    my($my, $window, $focus) = @_;
    my $edit = $my->{edit};

    if ($focus) {
        TEActivate($edit);
    } else {
        TEDeactivate($edit);
    }

    $my->callhook("focus", @_) and return;
}

=item redraw(WINDOW)

Redraw the contents of the pane.

=cut
sub redraw {
    my($my, $window) = @_;
    my $edit = $my->{edit};

    TEUpdate($window->window->visRgn->rgnBBox, $edit);

    my $r    = InsetRect $edit->viewRect, -1, -1;
    FrameRect($r);
}

=item key(WINDOW, KEY)

Handle a key stroke.

=cut
sub key {
    my($my, $window, $key) = @_;

    $my->callhook("key", @_) and return;

    my $edit = $my->{edit};

    TEKey(chr($key), $edit);
}

=item click(WINDOW, PT)

Handle a click.

=cut
sub click {
    my($my, $window, $pt) = @_;
    my($res);

    ($res = $my->callhook("click", @_)) and return $res;

    my $edit = $my->{edit};
    my $extend = ($Mac::Events::CurrentEvent->modifiers & shiftKey) != 0;

    if (TEClick($pt, $extend, $edit)) {
        $my->hit($window);
    }
    return PtInRect($pt, $edit->viewRect);
}

=item hit(WINDOW)

Handle a double click.

=cut
sub hit {
    defined($_[0]->callhook("hit", @_)) and return;
}

=item idle

Handle idle events.

=cut
sub idle {
    my($my) = @_;
    TEIdle($my->{edit});
}

=head1 BUGS/LIMITATIONS

=head1 FILES

=head1 AUTHOR(S)

Matthias Ulrich Neeracher <[e-mail]>

=cut

1;

__END__