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 'IMAGE' => 'Excel::Template::Element::Image',
19 'RANGE' => 'Excel::Template::Element::Range',
20 'VAR' => 'Excel::Template::Element::Var',
22 'FORMAT' => 'Excel::Template::Container::Format',
24 # These are all the Format short-cut objects
25 # They are also instantiable
26 'BOLD' => 'Excel::Template::Container::Bold',
27 'HIDDEN' => 'Excel::Template::Container::Hidden',
28 'ITALIC' => 'Excel::Template::Container::Italic',
29 'LOCKED' => 'Excel::Template::Container::Locked',
30 'OUTLINE' => 'Excel::Template::Container::Outline',
31 'SHADOW' => 'Excel::Template::Container::Shadow',
32 'STRIKEOUT' => 'Excel::Template::Container::Strikeout',
34 'KEEP_LEADING_ZEROS' => 'Excel::Template::Container::KeepLeadingZeros',
36 # These are the helper objects
37 # They are also in here to make E::T::Factory::isa() work.
38 'CONTEXT' => 'Excel::Template::Context',
39 'ITERATOR' => 'Excel::Template::Iterator',
40 'TEXTOBJECT' => 'Excel::Template::TextObject',
42 'CONTAINER' => 'Excel::Template::Container',
43 'ELEMENT' => 'Excel::Template::Element',
45 'BASE' => 'Excel::Template::Base',
48 my %isBuildable = map { $_ => ~~1 } qw(
50 FORMAT BOLD HIDDEN ITALIC LOCKED OUTLINE SHADOW STRIKEOUT
51 IF ROW LOOP SCOPE KEEP_LEADING_ZEROS
63 unless ( exists $Loaded{$class} )
65 (my $filename = $class) =~ s!::!/!g;
67 require "$filename.pm";
69 die "Cannot find or compile PM file for '$class' ($filename)\n";
72 $Loaded{$class} = ~~1;
80 my @param_names = qw(name class isa);
90 warn "$_ was not supplied to register()\n" if $^W;
95 my $name = uc $params{name};
96 if (exists $Manifest{$name})
98 warn "$params{name} already exists in the manifest.\n" if $^W;
102 my $isa = uc $params{isa};
103 unless (exists $Manifest{$isa})
105 warn "$params{isa} does not exist in the manifest.\n" if $^W;
111 unshift @{"$params{class}::ISA"}, $Manifest{$isa};
114 $self->_load_class( $Manifest{$isa} );
115 $self->_load_class( $params{class} );
117 $Manifest{$name} = $params{class};
118 $isBuildable{$name} = ~~1;
129 return unless exists $Manifest{$name};
131 $self->_load_class( $Manifest{$name} );
133 return $Manifest{$name}->new(@_);
141 return unless exists $isBuildable{$name};
143 return $self->_create($name, @_);
148 return unless @_ >= 2;
149 exists $Manifest{uc $_[1]}
150 ? UNIVERSAL::isa($_[0], $Manifest{uc $_[1]})
156 return unless @_ >= 1;
158 isa( $_[0], $_ ) && return ~~1 for qw( VAR BACKREF RANGE );
167 Excel::Template::Factory
171 To provide a common way to instantiate Excel::Template nodes
177 Use this to register your own nodes.
185 This is a customized isa() wrapper for syntactic sugar
191 Rob Kinyon (rob.kinyon@gmail.com)