1Paper::Specs(3) User Contributed Perl Documentation Paper::Specs(3)
2
6 Paper::Specs - Size and layout information for paper stock, forms, and
7 labels.
8
10 use Paper::Specs units => 'cm';
11 my $form = Paper::Specs->find( brand => 'Avery', code => '1234');
12 use Paper::Specs units => 'cm', brand => 'Avery';
14 my $form = Paper::Specs->find( code => '1234');
15 # location of first label on sheet
17 my ($xpos, $ypos) = $form->label_location( 1, 1);
18 my ($h, $w) = $form->label_size;
19
21 I appologise in advance for the hasty nature of this code. I want to
22 get it out to support some other code I am writing. I promise to
23 revisit it shortly to clear up the rough patches - however your
24 valuable input is most welcome.
25 CAVEAT ALPHA CODE - This is a preliminary module and will be subject to
27 fluctuations in API and structure based on feedback from users.
28 I expect that there will be some interest in this code and it should
30 firm up quickly.
31 If this module does not deliver what you are looking for then you are
33 encouraged to contact the author and voice your needs!
34 OTHER LABELS - I know about the Labels.xml file which is part of
36 OpenOffice but have not figured out how it is encoded. I have the
37 gLabels specifications file too. I plan to use these to help populate
38 the data for this module.
39
41 Import options
42 You can supply any of the methods for this class when it is
43 imported:
44 use Paper::Specs
46 strict => 1,
47 units => 'cm';
48 @forms = Paper::Specs->find( criteria )
50 Returns a list of forms that matches the criteria. There are two
51 fields for criteria: brand and code. The brand can be set for the
52 class via the Paper::Specs->brand method.
53 You must supply at least a brand or a code to find. If no brand is
55 supplied then all known brands will be searched.
56 If you set the module to strict, its default, the find must return
58 extactly zero or one forms as a scalar. Otherwise it will throw an
59 exception.
60 See the beginning of this module for examples of finds.
62 @brands = Paper::Specs->brands
64 Returns a list or reference to a list of the brands for the paper
65 forms that this module is aware of. One brand, 'standard' is
66 reserved for well known paper formats such as letter, A4, etc.
67 $new_value = Paper::Specs->convert( value, units )
69 Converts 'value' which is in 'units' to new value which is in
70 Paper::Specs->units units.
71 $units = Paper::Specs->units( units )
73 Gets/sets the units that you wish to work with in your code. If you
74 are using metric then you might want 'mm' or 'cm'. If you are using
75 empirial then you might want 'in' or 'pt' (points = 1/72 in).
76 Current units supported are: in, cm, mm, and pt.
78 Paper::Specs->layout( 'normal' | 'pdf' )
80 This sets the co-ordinate system for some forms such as labels.
81 'normal' puts (0,0) at the top left corner. 'pdf' puts (0,0) at the
82 lower left corner.
83 As well 'pdf' calls units('pt'). You can reset this afterwards if
85 you are working in a different unit system.
86 Paper::Specs->strict( 0 | 1 )
88 Sets the strictness of this module. If it is strict then it will
89 throw exceptions via 'die' for things like finding more than one
90 form on a find method.
91 The default is to be strict.
93
95 You get little object references back when you find specifications.
96 These objects can supply you with information that you are looking for
97 but do not actually store any values.
98 You should test that the object is of the type you are looking for
100 if ($form->type ne 'label') {
102 die "Feed me labels Seymore\n";
103 }
104 Other than that - most forms should be based on a sheet (of paper) but
106 will have different methods depending on what they are.
107
109 These methods apply forms of type 'sheet' and all that are derived from
110 it. (all other forms and stock)
111 ($h, $w) = $form->sheet_size
113 Returns the height and width of your sheet.
114 $size = $form->sheet_width
116 Width of the stock
117 $size = $form->sheet_height
119 Height of the stock
120
122 These methods apply to forms of type 'label' and all that are derived
123 from it.
124 Inherits methods from Paper::Specs::sheet.
126 ( $width, $height ) = $form->label_size
128 Returns just that; a list with the width and height of a label in
129 it
130 ( $x, $y ) = $form->label_location( $r, $c )
132 Returns the location of the upper left corner for label at row $r
133 and col $c based on your current format/co-ordinate system.
134 $size = $form->margin_left
136 Space between left edge of paper and first column of labels.
137 $size = $form->margin_right
139 Space between right edge of paper and last column of labels.
140 $size = $form->margin_top
142 Space between top edge of paper and first row of labels.
143 $size = $form->margin_bottom
145 Space between bottom edge of paper and last row of labels.
146 $size = $form->label_height
148 Height of one label
149 $size = $form->label_width
151 Width of one label
152 $count = label_rows
154 Number of rows of labels on a sheet
155 $count = label_cols
157 Number of columns of labels on a sheet
158 $size = $form->gutter_cols
160 Inner space between labels - column gutter.
161 $size = $form->gutter_rows
163 Inner space between labels - row gutter.
164
166 Paper::Specs homepage -
167 <http://perl.jonallen.info/projects/paper-specs>
168
170 Please report your bugs and suggestions for improvement to
171 <jj@jonallen.info>.
172
174 Originally written by Jay Lawrence <jlawrenc@cpan.org>
175 From version 0.06 onwards this module is maintained by Jon Allen (JJ)
177 <jj@jonallen.info> / <http://perl.jonallen.info>
178
180 Copyright (c)2001-2003 - Jay Lawrence, Infonium Inc. All rights
181 reserved.
182 Modifications from version 0.06 onwards Copyright (c) 2004-2005 Jon
184 Allen (JJ).
185 This library is free software; you can redistribute it and/or modify it
187 under the same terms as Perl itself.
188 Software distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND,
190 either express or implied. This software is not affiliated with the
191 Apache Software Foundation (ASF).
192perl v5.30.1 2020-01-30 Paper::Specs(3)