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package SVG::SVG2zinc::Backend::PerlClass;
# 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
#
##################################################################
# Backend Class for SVG2zinc
#
# Copyright 2003-2004
# Centre d'?tudes de la Navigation A?rienne
#
# Author: Christophe Mertz <mertz at intuilab dot com>
#
# An concrete class for code generation for Perl Class
#
# $Id: PerlClass.pm,v 1.4 2007-03-12 10:25:18 merlin Exp $
#############################################################################
use SVG::SVG2zinc::Backend;
use File::Basename;
use Tk::Zinc;
@ISA = qw( SVG::SVG2zinc::Backend );
use vars qw( $VERSION);
($VERSION) = sprintf("%d.%02d", q$Revision: 1.4 $ =~ /(\d+)\.(\d+)/);
use strict;
use Carp;
our $current_package_name = '';
sub _initialize {
my ($self, %passed_options) = @_;
$self->{-topgroup} = '$self->{-topgroup}'; # this code is used by SVG2zinc
$self->SUPER::_initialize(%passed_options);
$self -> {delayed_lines} = ();
$self -> {gradient} = {};
$self -> {gradient_id} = 0;
return $self;
}
sub recordGradient {
my ($self, $name, $def) = @_;
$self -> {gradient} -> {$name} = $def;
}
sub getGradient {
my ($self, $name) = @_;
return $self -> {gradient} -> {$name} -> {stops};
}
sub applyGradient {
my ($self, $name, $prop) = @_;
my $grad = $self -> {gradient} -> {$name};
my $id = $self -> {gradient_id} ++;
my %hash = %{$grad};
my @lignes = 'my ($x1, $y1, $x2, $y2) = $_zinc -> bbox ($previous);';
# push (@lignes, 'my ($parent) = $_zinc -> find(\'ancestors\', $previous);');
push (@lignes, '($x1, $y1, $x2, $y2) = $_zinc -> transform(\'device\', $parent, [$x1+1, $y1+1, $x2-2, $y2-2]);');
push (@lignes, "my \$grad = getGradient (");
push (@lignes, "\t'$current_package_name',");
push (@lignes, "\t'$id',");
push (@lignes, "\t'".$hash {type}."',");
push (@lignes, "\t'".$hash {gradientUnits}."',");
push (@lignes, "\t".join (',' , @{$hash{coords}}).",");
push (@lignes, "\t'".join ('|' , @{$hash{stops}})."',");
push (@lignes, "\t".join (',' , @{$hash{transform}}).",");
push (@lignes, "\t\$x1, \$y1, \$x2, \$y2");
push (@lignes, ");");
push (@lignes, "mconfigure (\$previous, $prop => \$grad);");
$self -> {current_gradient} = \@lignes;
}
sub treatLines {
my ($self,@lines) = @_;
foreach my $l (@lines)
{
$l =~ s/^(\s*)->/$1\$_zinc->/g;
$l =~ s/(\W)->/$1\$_zinc->/g;
$self -> printLines($l);
}
}
sub dtreatLines {
my ($self, @lines) = @_;
foreach my $l (@lines)
{
$l =~ s/^(\s*)->add/$1\$previous = \$_zinc-> add/g;
$l =~ s/(\W)->add/$1\$previous = \$_zinc-> add/g;
$l =~ s/^(\s*)->/$1\$_zinc-> /g;
$l =~ s/(\W)->/$1\$_zinc-> /g;
}
if (defined @lines)
{
my $rule = shift (@lines);
push (@{$self -> {delayed_lines}}, $rule);
}
if (defined $self -> {current_gradient})
{
my @grad = @{$self -> {current_gradient}};
foreach my $l (@grad)
{
push (@{$self -> {delayed_lines}}, $l);
}
$self -> {current_gradient} = undef;
}
foreach my $l (@lines)
{
push (@{$self -> {delayed_lines}}, $l);
}
}
sub fileHeader {
my ($self) = @_;
my $file = $self -> {-in}; # print "file=$file\n";
my ($svg2zincPackage) = caller;
my $VERSION = eval ( "\$".$svg2zincPackage."::VERSION" );
my ($package_name) = $self -> {-out} =~ /(.*)\.pm$/ ;
$current_package_name = $package_name;
$self -> printLines("package $package_name;
####### This file has been generated from $file by SVG::SVG2zinc.pm Version: $VERSION
");
$self->printLines(
<<'HEADER'
use strict;
use MTools;
use MTools::GUI::MGroup;
use vars qw /@ISA @EXPORT @EXPORT_OK/;
use Tk::PNG;
use Tk::JPEG;
BEGIN
{
@ISA = qw /MTools::GUI::MGroup/;
}
sub new {
my ($class, %passed_options) = @_;
my $self = {};
bless $self, $class;
my $_zinc = $passed_options {-zinc};
croak ("-zinc option is mandatory at instanciation") unless defined $_zinc;
if (defined $passed_options {-topgroup})
{
$self -> {-topgroup} = $passed_options {-topgroup};
}
else
{
$self -> {-topgroup} = 1;
}
my $parent = $self -> {-topgroup};
my @parents = ();
my $previous = ();
push (@parents, $parent);
# on now items creation!
HEADER
);
}
sub fileTail {
my ($self) = @_;
$self->comment ("", "Tail of SVG2zinc::Backend::PerlScript", "");
unshift (@{$self -> {delayed_lines}}, '$self -> {instance} = $previous = ');
$self -> printLines(@{$self -> {delayed_lines}});
$self -> printLines(
<<'TAIL'
return $self;
}
1;
TAIL
);
$self->close;
}
1;
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