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diff --git a/lib/ManaTools/Category.pm b/lib/ManaTools/Category.pm
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+# vim: set et ts=4 sw=4:
+#    Copyright 2012 Steven Tucker
+#
+#    This file is part of ManaTools
+#
+#    ManaTools is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    ManaTools 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 General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with ManaTools.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#Class Category
+package ManaTools::Category;
+
+use strict;
+use warnings;
+use diagnostics;
+use yui;
+
+## Can only add the config file data at constructor
+## The Gui elements are added in setupGui inside MainDisplay
+#=============================================================
+
+=head2 new
+
+=head3 INPUT
+
+    $newName: new category name
+    $newIcon: new category icon
+
+=head3 OUTPUT
+
+    $self: this object
+
+=head3 DESCRIPTION
+
+    Constructor: creates a new category named Name
+
+=cut
+
+#=============================================================
+
+sub new {
+    my ($class, $newName, $newIcon) = @_;
+    my $self = {
+        name    => 0,
+        button  => 0,
+        icon    => 0,
+        modules => [],
+    };
+    bless $self, 'ManaTools::Category';
+
+    $self->{name} = $newName;
+    $self->{icon} = $newIcon;
+
+    return $self;
+}
+
+## Add a new module to the list
+#=============================================================
+
+=head2 loadModule
+
+=head3 INPUT
+
+    $self:   this object
+    $module: module to add
+
+=head3 OUTPUT
+
+    1: if the module has been added
+    0: otherwise
+
+=head3 DESCRIPTION
+
+    This method adds a module to the loaded
+    modules if it is not already in.
+
+=cut
+
+#=============================================================
+sub loadModule {
+    my ($self, $module) = @_;
+
+    if (!$self->moduleLoaded($module->{name})) {
+        push ( @{$self->{modules}}, $module );
+
+        return 1;
+    }
+    return 0;
+}
+
+#=============================================================
+
+=head2 moduleLoaded
+
+=head3 INPUT
+
+    $self:        this object
+    $module_name or -CLASS => name : module/CLASS name to look for
+
+=head3 OUTPUT
+
+    $present: module present or not
+
+=head3 DESCRIPTION
+
+    This method looks for the given module and if already in
+    returns true.
+=cut
+
+#=============================================================
+sub moduleLoaded {
+    my $self = shift;
+    my ($module_name) = @_;
+    my %params = ();
+    if ($module_name eq '-CLASS') {
+        (%params) = @_;
+    }
+
+    my $present = 0;
+
+    if (!$module_name || ! $self->{modules}) {
+        return $present;
+    }
+
+    foreach my $mod (@{$self->{modules}}) {
+        if (exists $params{-CLASS} && ref($mod) eq $params{-CLASS}) {
+            $present = 1;
+            last;
+        }
+        elsif ($mod->{name} eq $module_name) {
+            $present = 1;
+            last;
+        }
+    }
+
+    return $present;
+}
+
+#=============================================================
+
+=head2 addButtons
+
+=head3 INPUT
+
+    $self:    this object
+    $panel:   parent panel layout in which to create buttons
+    $factory: yui factory
+
+=head3 DESCRIPTION
+
+    Creates and adds buttons for each module_name
+
+=cut
+
+#=============================================================
+sub addButtons {
+    my($self, $panel, $factory) = @_;
+    my $tmpButton;
+    my $currLayout = 0;
+    my %weights = ();
+    my $curr;
+    my $count = 0;
+    foreach my $mod (@{$self->{modules}}) {
+        if(($count % 2) != 1) {
+            $factory->createVSpacing($panel, 0.5);
+            $currLayout = $factory->createHBox($panel);
+            $factory->createHSpacing($currLayout, 1);
+            $currLayout->setWeight($yui::YD_VERT, 10);
+        }
+
+        $tmpButton = $factory->createPushButton(
+            $currLayout,
+            $mod->name
+        );
+        $count++;
+        if (($count < scalar @{$self->{modules}}) || (($count >= scalar @{$self->{modules}}) && ($count % 2) == 0)) {
+            $tmpButton->setWeight($yui::YD_HORIZ, 20);
+        }
+        $factory->createHSpacing($currLayout, 1);
+        $mod->setButton($tmpButton);
+        $tmpButton->setLabel($mod->name);
+        $tmpButton->setIcon($mod->icon);
+    }
+}
+
+#=============================================================
+
+=head2 removeButtons
+
+=head3 INPUT
+
+    $self: this object
+
+=head3 DESCRIPTION
+
+    Delete the module buttons
+
+=cut
+
+#=============================================================
+sub removeButtons {
+    my($self) = @_;
+
+    for(@{$self->{modules}}) {
+        $_->removeButton();
+    }
+}
+
+#=============================================================
+
+=head2 setIcon
+
+=head3 INPUT
+
+    $self: this object
+
+=head3 DESCRIPTION
+
+    set the button icon
+
+=cut
+
+#=============================================================
+sub setIcon {
+    my($self) = @_;
+
+    $self->{button}->setIcon($self->{icon});
+}
+
+1;
+__END__
+
+=pod
+
+=head1 NAME
+
+    Category - add new category to window
+
+=head1 SYNOPSIS
+
+    $category = new Category('Category Name');
+
+
+=head1 USAGE
+
+    This class is used by MainDisplay internally and should not
+    be used outside, since MainDisplay::setupGui use it to
+    build GUI layout.
+
+=head1 FUNCTIONS
+
+=cut