1 package Excel::Template::Factory;
7 # These are the instantiable nodes
8 'IF' => 'Excel::Template::Container::Conditional',
9 'LOOP' => 'Excel::Template::Container::Loop',
10 'ROW' => 'Excel::Template::Container::Row',
11 'SCOPE' => 'Excel::Template::Container::Scope',
12 'WORKBOOK' => 'Excel::Template::Container::Workbook',
13 'WORKSHEET' => 'Excel::Template::Container::Worksheet',
15 'BACKREF' => 'Excel::Template::Element::Backref',
16 'CELL' => 'Excel::Template::Element::Cell',
17 'FORMULA' => 'Excel::Template::Element::Formula',
18 'RANGE' => 'Excel::Template::Element::Range',
19 'VAR' => 'Excel::Template::Element::Var',
21 'FORMAT' => 'Excel::Template::Container::Format',
23 # These are all the Format short-cut objects
24 # They are also instantiable
25 'BOLD' => 'Excel::Template::Container::Bold',
26 'HIDDEN' => 'Excel::Template::Container::Hidden',
27 'ITALIC' => 'Excel::Template::Container::Italic',
28 'LOCKED' => 'Excel::Template::Container::Locked',
29 'OUTLINE' => 'Excel::Template::Container::Outline',
30 'SHADOW' => 'Excel::Template::Container::Shadow',
31 'STRIKEOUT' => 'Excel::Template::Container::Strikeout',
33 # These are the helper objects
34 # They are also in here to make E::T::Factory::isa() work.
35 'CONTEXT' => 'Excel::Template::Context',
36 'ITERATOR' => 'Excel::Template::Iterator',
37 'TEXTOBJECT' => 'Excel::Template::TextObject',
39 'CONTAINER' => 'Excel::Template::Container',
40 'ELEMENT' => 'Excel::Template::Element',
42 'BASE' => 'Excel::Template::Base',
45 my %isBuildable = map { $_ => ~~1 } qw(
47 FORMAT BOLD HIDDEN ITALIC LOCKED OUTLINE SHADOW STRIKEOUT
60 unless ( exists $Loaded{$class} )
62 (my $filename = $class) =~ s!::!/!g;
64 require "$filename.pm";
66 die "Cannot find or compile PM file for '$class' ($filename)\n";
69 $Loaded{$class} = ~~1;
77 my @param_names = qw(name class isa);
87 warn "$_ was not supplied to register()\n" if $^W;
92 my $name = uc $params{name};
93 if (exists $Manifest{$name})
95 warn "$params{name} already exists in the manifest.\n" if $^W;
99 my $isa = uc $params{isa};
100 unless (exists $Manifest{$isa})
102 warn "$params{isa} does not exist in the manifest.\n" if $^W;
108 unshift @{"$params{class}::ISA"}, $Manifest{$isa};
111 $self->_load_class( $Manifest{$isa} );
112 $self->_load_class( $params{class} );
114 $Manifest{$name} = $params{class};
115 $isBuildable{$name} = ~~1;
126 return unless exists $Manifest{$name};
128 $self->_load_class( $Manifest{$name} );
130 return $Manifest{$name}->new(@_);
138 return unless exists $isBuildable{$name};
140 return $self->_create($name, @_);
145 return unless @_ >= 2;
146 exists $Manifest{uc $_[1]}
147 ? UNIVERSAL::isa($_[0], $Manifest{uc $_[1]})
153 return unless @_ >= 1;
155 isa( $_[0], $_ ) && return ~~1 for qw( VAR BACKREF RANGE );
164 Excel::Template::Factory
168 To provide a common way to instantiate Excel::Template nodes
174 Use this to register your own nodes.
182 This is a customized isa() wrapper for syntactic sugar
188 Rob Kinyon (rob.kinyon@gmail.com)