package MTools::GUI::MClip;
#	This program is free software; you can redistribute it and/or
#	modify it under the terms of the GNU LGPL Libray General Public License
#	as published by the Free Software Foundation; either version 2
#	of the License, or (at your option) any later version.
#
#	This program 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.
#
#	You should have received a copy of the GNU Library General Public License
#	along with this program; if not, write to the Free Software
#	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA,
#	or refer to http://www.gnu.org/copyleft/lgpl.html
#
##################################################################

# Encapsule le clipping d'un objet
# Parametres : 
# 	* clipped : group zinc clippe
#	* path : description de l'objet clippant
#		- soit une descrition sous forme [_type, _coords] creant un objet zinc de type _type et de coordonnees _coords
#		- soit un objet existant qui prendra pour p?re le group $clipped.

use strict;

use MTools qw(!translate !scale !rotate);
use vars qw / @ISA /;

BEGIN 
{
	@ISA = qw /MTools::MObjet/;
}

sub new {
  my ($class, $clipped, $path, $debug) = @_;
  my $self = new MTools::MObjet ();
  bless $self, $class;
  
  if (!defined $debug) {$debug = 0}
  
  my $clip = $path;
  if(ref ($path) eq 'ARRAY')
    {
      my $type = shift @{$path};
      my $obj = $clipped;
      if (ref ($clipped) ne '') {
	$obj = $clipped -> {instance};
      }
      $clip = $zinc -> add ($type, $obj, $path, 
			    -filled => 1, 
			    -priority => 10,
			    -linewidth => 0,
			    -fillcolor => "#000000",
			    -visible => $debug,
			    -sensitive => 0,
			   );
    }
  elsif(ref ($path) eq '')
    {
      $clip = minstance ($clip, $clipped);
      MTools::chggroup ($clip, $clipped);
      MTools::mconfigure  ($clip, -visible => $debug, -sensitive => 0);
    }
  else
    {
      MTools::chggroup ($clip, $clipped);
      MTools::mconfigure ($clip, -visible => $debug, -sensitive => 0);
      $clip = minstance ($clip);
    }
	$self -> {__clipped} = $clipped;
	$self -> {__clip} = $clip;
	mconfigure ($clipped, -clip => $clip);
	
	$self -> recordProperty ('-visible', 1);
	$self -> plisten ('-visible', sub { 
			    my ($src, $key, $val) = @_;
			    if ($val == 0)
			      {
				mconfigure($self->{__clipped}, -clip => undef);
			      }
			    else
			      {
				mconfigure($self->{__clipped}, -clip => $self->{__clip});
			      }
			  });
	return $self;
      }

sub translate {
	my ($self, @args) = @_;
	MTools::translate ($self -> {__clip}, @args);
}

sub scale {
	my ($self, @args) = @_;
	MTools::scale ($self -> {__clip}, @args);
}

sub rotate {
	my ($self, @args) = @_;
	MTools::rotate ($self -> {__clip}, @args);
}

1;