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#! /usr/bin/perl -w |
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package PostScript::Simple; |
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use strict; |
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use vars qw($VERSION @ISA @EXPORT); |
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use Carp; |
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use Exporter; |
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use PostScript::Simple::EPS; |
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@ISA = qw(Exporter); |
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@EXPORT = qw(); |
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$VERSION = '0.08'; |
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#------------------------------------------------------------------------------- |
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=head1 NAME |
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PostScript::Simple - Produce PostScript files from Perl |
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=head1 SYNOPSIS |
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use PostScript::Simple; |
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# create a new PostScript object |
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$p = new PostScript::Simple(papersize => "A4", |
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colour => 1, |
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eps => 0, |
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units => "in"); |
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# create a new page |
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$p->newpage; |
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# draw some lines and other shapes |
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$p->line(1,1, 1,4); |
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$p->linextend(2,4); |
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$p->box(1.5,1, 2,3.5); |
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$p->circle(2,2, 1); |
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$p->setlinewidth( 0.01 ); |
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$p->curve(1,5, 1,7, 3,7, 3,5); |
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$p->curvextend(3,3, 5,3, 5,5); |
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# draw a rotated polygon in a different colour |
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$p->setcolour(0,100,200); |
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$p->polygon({rotate=>45}, 1,1, 1,2, 2,2, 2,1, 1,1); |
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# add some text in red |
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$p->setcolour("red"); |
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$p->setfont("Times-Roman", 20); |
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$p->text(1,1, "Hello"); |
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# write the output to a file |
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$p->output("file.ps"); |
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=head1 DESCRIPTION |
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PostScript::Simple allows you to have a simple method of writing PostScript |
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files from Perl. It has graphics primitives that allow lines, curves, circles, |
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polygons and boxes to be drawn. Text can be added to the page using standard |
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PostScript fonts. |
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The images can be single page EPS files, or multipage PostScript files. The |
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image size can be set by using a recognised paper size ("C", for example) or |
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by giving dimensions. The units used can be specified ("C" or "C", etc) |
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and are the same as those used in TeX. The default unit is a bp, or a PostScript |
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point, unlike TeX. |
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=head1 PREREQUISITES |
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This module requires C and C. |
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=head2 EXPORT |
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None. |
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=cut |
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#------------------------------------------------------------------------------- |
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# Define some colour names |
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my %pscolours = ( |
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# Original colours from PostScript::Simple |
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brightred => [255, 0, 0], brightgreen => [0, 255, 0], brightblue => [0, 0, 1], |
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red => [204, 0, 0], green => [0, 204, 0], blue => [0, 0, 204], |
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darkred => [127, 0, 0], darkgreen => [0, 127, 0], darkblue => [0, 0, 127], |
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grey10 => [25, 25, 25], grey20 => [51, 51, 51], grey30 => [76, 76, 76], |
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grey40 => [102, 102, 102], grey50 => [127, 127, 127], grey60 => [153, 153, 153], |
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grey70 => [178, 178, 178], grey80 => [204, 204, 204], grey90 => [229, 229, 229], |
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black => [0, 0, 0], white => [255, 255, 255], |
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# X-Windows colours, unless they clash with the above (only /(dark)?(red|green|blue)/ ) |
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aliceblue => [240, 248, 255], antiquewhite => [250, 235, 215], aqua => [0, 255, 255], |
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aquamarine => [127, 255, 212], azure => [240, 255, 255], beige => [245, 245, 220], |
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bisque => [255, 228, 196], blanchedalmond => [255, 255, 205], blueviolet => [138, 43, 226], |
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brown => [165, 42, 42], burlywood => [222, 184, 135], cadetblue => [95, 158, 160], |
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chartreuse => [127, 255, 0], chocolate => [210, 105, 30], coral => [255, 127, 80], |
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cornflowerblue => [100, 149, 237], cornsilk => [255, 248, 220], crimson => [220, 20, 60], |
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cyan => [0, 255, 255], darkcyan => [0, 139, 139], darkgoldenrod => [184, 134, 11], |
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darkgray => [169, 169, 169], darkgrey => [169, 169, 169], darkkhaki => [189, 183, 107], |
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darkmagenta => [139, 0, 139], darkolivegreen => [85, 107, 47], darkorange => [255, 140, 0], |
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darkorchid => [153, 50, 204], darksalmon => [233, 150, 122], darkseagreen => [143, 188, 143], |
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darkslateblue => [72, 61, 139], darkslategray => [47, 79, 79], darkslategrey => [47, 79, 79], |
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darkturquoise => [0, 206, 209], darkviolet => [148, 0, 211], deeppink => [255, 20, 147], |
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deepskyblue => [0, 191, 255], dimgray => [105, 105, 105], dimgrey => [105, 105, 105], |
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dodgerblue => [30, 144, 255], firebrick => [178, 34, 34], floralwhite => [255, 250, 240], |
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forestgreen => [34, 139, 34], fuchsia => [255, 0, 255], gainsboro => [220, 220, 220], |
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ghostwhite => [248, 248, 255], gold => [255, 215, 0], goldenrod => [218, 165, 32], |
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gray => [128, 128, 128], grey => [128, 128, 128], greenyellow => [173, 255, 47], |
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honeydew => [240, 255, 240], hotpink => [255, 105, 180], indianred => [205, 92, 92], |
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indigo => [75, 0, 130], ivory => [255, 240, 240], khaki => [240, 230, 140], |
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lavender => [230, 230, 250], lavenderblush => [255, 240, 245], lawngreen => [124, 252, 0], |
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lemonchiffon => [255, 250, 205], lightblue => [173, 216, 230], lightcoral => [240, 128, 128], |
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lightcyan => [224, 255, 255], lightgoldenrodyellow => [250, 250, 210], lightgray => [211, 211, 211], |
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lightgreen => [144, 238, 144], lightgrey => [211, 211, 211], lightpink => [255, 182, 193], |
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lightsalmon => [255, 160, 122], lightseagreen => [32, 178, 170], lightskyblue => [135, 206, 250], |
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lightslategray => [119, 136, 153], lightslategrey => [119, 136, 153], lightsteelblue => [176, 196, 222], |
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lightyellow => [255, 255, 224], lime => [0, 255, 0], limegreen => [50, 205, 50], |
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linen => [250, 240, 230], magenta => [255, 0, 255], maroon => [128, 0, 0], |
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mediumaquamarine => [102, 205, 170], mediumblue => [0, 0, 205], mediumorchid => [186, 85, 211], |
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mediumpurple => [147, 112, 219], mediumseagreen => [60, 179, 113], mediumslateblue => [123, 104, 238], |
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mediumspringgreen => [0, 250, 154], mediumturquoise => [72, 209, 204], mediumvioletred => [199, 21, 133], |
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midnightblue => [25, 25, 112], mintcream => [245, 255, 250], mistyrose => [255, 228, 225], |
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moccasin => [255, 228, 181], navajowhite => [255, 222, 173], navy => [0, 0, 128], |
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oldlace => [253, 245, 230], olive => [128, 128, 0], olivedrab => [107, 142, 35], |
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orange => [255, 165, 0], orangered => [255, 69, 0], orchid => [218, 112, 214], |
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palegoldenrod => [238, 232, 170], palegreen => [152, 251, 152], paleturquoise => [175, 238, 238], |
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palevioletred => [219, 112, 147], papayawhip => [255, 239, 213], peachpuff => [255, 218, 185], |
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peru => [205, 133, 63], pink => [255, 192, 203], plum => [221, 160, 221], |
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powderblue => [176, 224, 230], purple => [128, 0, 128], rosybrown => [188, 143, 143], |
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royalblue => [65, 105, 225], saddlebrown => [139, 69, 19], salmon => [250, 128, 114], |
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sandybrown => [244, 164, 96], seagreen => [46, 139, 87], seashell => [255, 245, 238], |
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sienna => [160, 82, 45], silver => [192, 192, 192], skyblue => [135, 206, 235], |
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slateblue => [106, 90, 205], slategray => [112, 128, 144], slategrey => [112, 128, 144], |
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snow => [255, 250, 250], springgreen => [0, 255, 127], steelblue => [70, 130, 180], |
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tan => [210, 180, 140], teal => [0, 128, 128], thistle => [216, 191, 216], |
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tomato => [253, 99, 71], turquoise => [64, 224, 208], violet => [238, 130, 238], |
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wheat => [245, 222, 179], whitesmoke => [245, 245, 245], yellow => [255, 255, 0], |
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yellowgreen => [154, 205, 50], |
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); |
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# define page sizes here (a4, letter, etc) |
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# should be Properly Cased |
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my %pspaper = ( |
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A0 => [2384, 3370], |
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A1 => [1684, 2384], |
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A2 => [1191, 1684], |
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A3 => [841.88976, 1190.5512], |
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A4 => [595.27559, 841.88976], |
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A5 => [420.94488, 595.27559], |
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A6 => [297, 420], |
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A7 => [210, 297], |
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A8 => [148, 210], |
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A9 => [105, 148], |
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159
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B0 => [2920, 4127], |
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B1 => [2064, 2920], |
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B2 => [1460, 2064], |
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B3 => [1032, 1460], |
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B4 => [729, 1032], |
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B5 => [516, 729], |
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B6 => [363, 516], |
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B7 => [258, 363], |
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B8 => [181, 258], |
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B9 => [127, 181 ], |
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B10 => [91, 127], |
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171
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Executive => [522, 756], |
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Folio => [595, 935], |
173
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'Half-Letter' => [612, 397], |
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Letter => [612, 792], |
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'US-Letter' => [612, 792], |
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Legal => [612, 1008], |
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'US-Legal' => [612, 1008], |
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Tabloid => [792, 1224], |
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'SuperB' => [843, 1227], |
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Ledger => [1224, 792], |
181
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182
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'Comm #10 Envelope' => [297, 684], |
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'Envelope-Monarch' => [280, 542], |
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'Envelope-DL' => [312, 624], |
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'Envelope-C5' => [461, 648], |
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187
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'EuroPostcard' => [298, 420], |
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); |
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191
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# The 13 standard fonts that are available on all PS 1 implementations: |
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my @fonts = ( |
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'Courier', 'Courier-Bold', 'Courier-BoldOblique', 'Courier-Oblique', |
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'Helvetica', 'Helvetica-Bold', 'Helvetica-BoldOblique', 'Helvetica-Oblique', |
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'Times-Roman', 'Times-Bold', 'Times-BoldItalic', 'Times-Italic', |
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'Symbol'); |
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# define the origins for the page a document can have |
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# (default is "LeftBottom") |
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my %psorigin = ( |
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'LeftBottom' => [ 0, 0], |
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'LeftTop' => [ 0, -1], |
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'RightBottom' => [-1, 0], |
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'RightTop' => [-1, -1], |
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); |
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# define the co-ordinate direction (default is 'RightUp') |
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my %psdirs = ( |
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'RightUp' => [ 1, 1], |
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'RightDown' => [ 1, -1], |
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'LeftUp' => [-1, 1], |
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'LeftDown' => [-1, -1], |
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); |
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# measuring units are two-letter acronyms as used in TeX: |
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# bp: postscript point (72 per inch) |
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# in: inch (72 postscript points) |
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# pt: printer's point (72.27 per inch) |
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# mm: millimetre (25.4 per inch) |
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# cm: centimetre (2.54 per inch) |
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# pi: pica (12 printer's points) |
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# dd: didot point (67.567. per inch) |
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# cc: cicero (12 didot points) |
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# set up the others here (sp) XXXXX |
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my %psunits = ( |
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pt => [72, 72.27], |
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pc => [72, 6.0225], |
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in => [72, 1], |
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bp => [1, 1], |
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cm => [72, 2.54], |
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mm => [72, 25.4], |
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dd => [72, 67.567], |
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cc => [72, 810.804], |
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); |
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240
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#------------------------------------------------------------------------------- |
241
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242
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=head1 CONSTRUCTOR |
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244
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=over 4 |
245
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246
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=item C |
247
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248
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Create a new PostScript::Simple object. The different options that can be set are: |
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250
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=over 4 |
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252
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=item units |
253
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254
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Units that are to be used in the file. Common units would be C, C, |
255
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C, C, and C. Others are as used in TeX. (Default: C) |
256
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257
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=item xsize |
258
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259
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Specifies the width of the drawing area in units. |
260
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261
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=item ysize |
262
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263
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Specifies the height of the drawing area in units. |
264
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265
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=item papersize |
266
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267
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The size of paper to use, if C or C are not defined. This allows |
268
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a document to easily be created using a standard paper size without having to |
269
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remember the size of paper using PostScript points. Valid choices are currently |
270
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"C", "C", "C", and "C". |
271
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272
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=item landscape |
273
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274
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Use the landscape option to rotate the page by 90 degrees. The paper dimensions |
275
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are also rotated, so that clipping will still work. (Note that the printer will |
276
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still think that the paper is portrait.) (Default: 0) |
277
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278
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=item copies |
279
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280
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Set the number of copies that should be printed. (Default: 1) |
281
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282
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=item clip |
283
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284
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If set to 1, the image will be clipped to the xsize and ysize. This is most |
285
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useful for an EPS image. (Default: 0) |
286
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287
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=item colour |
288
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289
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Specifies whether the image should be rendered in colour or not. If set to 0 |
290
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(default) all requests for a colour are mapped to a greyscale. Otherwise the |
291
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colour requested with C or C is used. This option is present |
292
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because most modern laser printers are only black and white. (Default: 0) |
293
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294
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=item eps |
295
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296
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Generate an EPS file, rather than a standard PostScript file. If set to 1, no |
297
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newpage methods will actually create a new page. This option is probably the |
298
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most useful for generating images to be imported into other applications, such |
299
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as TeX. (Default: 1) |
300
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301
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=item page |
302
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303
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Specifies the initial page number of the (multi page) document. The page number |
304
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is set with the Adobe DSC comments, and is used nowhere else. It only makes |
305
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finding your pages easier. See also the C method. (Default: 1) |
306
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307
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=item coordorigin |
308
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309
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Defines the co-ordinate origin for each page produced. Valid arguments are |
310
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C, C, C and C. The default is |
311
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C. |
312
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313
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=item direction |
314
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315
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The direction the co-ordinates go from the origin. Values can be C, |
316
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C, C and C. The default value is C. |
317
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318
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=item reencode |
319
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320
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Requests that a font re-encode function be added and that the 13 standard |
321
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PostScript fonts get re-encoded in the specified encoding. The most popular |
322
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choice (other than undef) is 'ISOLatin1Encoding' which selects the iso8859-1 |
323
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encoding and fits most of western Europe, including the Scandinavia. Refer to |
324
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|
Adobes Postscript documentation for other encodings. |
325
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326
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The output file is, by default, re-encoded to ISOLatin1Encoding. To stop this |
327
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happening, use 'reencode => undef'. To use the re-encoded font, '-iso' must be |
328
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appended to the names of the fonts used, e.g. 'Helvetica-iso'. |
329
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330
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=back |
331
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332
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Example: |
333
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334
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$ref = new PostScript::Simple(landscape => 1, |
335
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eps => 0, |
336
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xsize => 4, |
337
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ysize => 3, |
338
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units => "in"); |
339
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340
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|
Create a document that is 4 by 3 inches and prints landscape on a page. It is |
341
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not an EPS file, and must therefore use the C method. |
342
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343
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$ref = new PostScript::Simple(eps => 1, |
344
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colour => 1, |
345
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xsize => 12, |
346
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ysize => 12, |
347
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units => "cm", |
348
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reencode => "ISOLatin1Encoding"); |
349
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350
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Create a 12 by 12 cm EPS image that is in colour. Note that "C 1>" |
351
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did not have to be specified because this is the default. Re-encode the |
352
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standard fonts into the iso8859-1 encoding, providing all the special characters |
353
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used in Western Europe. The C method should not be used. |
354
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355
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=back |
356
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357
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=cut |
358
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359
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sub new |
360
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{ |
361
|
9
|
|
|
9
|
1
|
492
|
my ($class, %data) = @_; |
362
|
9
|
|
|
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|
223
|
my $self = { |
363
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xsize => undef, |
364
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ysize => undef, |
365
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papersize => undef, |
366
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units => "bp", # measuring units (see below) |
367
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landscape => 0, # rotate the page 90 degrees |
368
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copies => 1, # number of copies |
369
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colour => 0, # use colour |
370
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clip => 0, # clip to the bounding box |
371
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eps => 1, # create eps file |
372
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page => 1, # page number to start at |
373
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reencode => "ISOLatin1Encoding", # Re-encode the 13 standard |
374
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# fonts in this encoding |
375
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376
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bbx1 => 0, # Bounding Box definitions |
377
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bby1 => 0, |
378
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bbx2 => 0, |
379
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bby2 => 0, |
380
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381
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pscomments => "", # the following entries store data |
382
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|
psprolog => "", # for the same DSC areas of the |
383
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psfunctions => "", # postscript file. |
384
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pssetup => "", |
385
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pspages => "", |
386
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pstrailer => "", |
387
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|
usedunits => {}, # units that have been used |
388
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389
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lastfontsize => 0, |
390
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pspagecount => 0, |
391
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usedcircle => 0, |
392
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usedcircletext => 0, |
393
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usedbox => 0, |
394
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usedrotabout => 0, |
395
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usedimporteps => 0, |
396
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397
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coordorigin => 'LeftBottom', |
398
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direction => 'RightUp', |
399
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|
}; |
400
|
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|
401
|
9
|
|
|
|
|
43
|
foreach (keys %data) { |
402
|
26
|
|
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|
|
58
|
$self->{$_} = $data{$_}; |
403
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|
|
} |
404
|
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|
405
|
9
|
|
|
|
|
28
|
bless $self, $class; |
406
|
9
|
|
|
|
|
44
|
$self->init(); |
407
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|
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|
|
|
|
|
408
|
9
|
|
|
|
|
41
|
return $self; |
409
|
|
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|
|
|
|
} |
410
|
|
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|
|
411
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|
412
|
|
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|
|
#------------------------------------------------------------------------------- |
413
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|
414
|
|
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|
|
sub _u |
415
|
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|
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|
|
{ |
416
|
515
|
|
|
515
|
|
10341
|
my ($self, $u, $rev) = @_; |
417
|
|
|
|
|
|
|
|
418
|
515
|
|
|
|
|
768
|
my $val; |
419
|
|
|
|
|
|
|
my $unit; |
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
# $u may be... |
422
|
|
|
|
|
|
|
# a simple number, in which case the current units are used |
423
|
|
|
|
|
|
|
# a listref of [number, "unit"], to force the unit |
424
|
|
|
|
|
|
|
# a string "number unit", e.g. "4 mm" or "2.4in" |
425
|
|
|
|
|
|
|
|
426
|
515
|
100
|
|
|
|
946
|
if (ref($u) eq "ARRAY") { |
427
|
5
|
|
|
|
|
10
|
$val = $$u[0]; |
428
|
5
|
|
|
|
|
10
|
$unit = $$u[1]; |
429
|
5
|
100
|
|
|
|
524
|
confess "Invalid array" if @$u != 2; |
430
|
|
|
|
|
|
|
} else { |
431
|
510
|
100
|
|
|
|
2586
|
if ($u =~ /^\s*(\d+(?:\.\d+)?)\s*([a-z][a-z])?\s*$/) { |
432
|
508
|
|
|
|
|
949
|
$val = $1; |
433
|
508
|
|
66
|
|
|
2319
|
$unit = $2 || $self->{units}; |
434
|
|
|
|
|
|
|
} |
435
|
|
|
|
|
|
|
} |
436
|
|
|
|
|
|
|
|
437
|
513
|
100
|
|
|
|
1329
|
confess "Cannot determine length" unless defined $val; |
438
|
511
|
50
|
|
|
|
853
|
confess "Cannot determine unit (invalid array?)" unless defined $unit; |
439
|
|
|
|
|
|
|
|
440
|
511
|
100
|
|
|
|
1282
|
croak "Invalid unit '$unit'" unless defined $psunits{$unit}; |
441
|
|
|
|
|
|
|
|
442
|
510
|
100
|
|
|
|
1117
|
unless (defined $self->{usedunits}{$unit}) { |
443
|
15
|
|
|
|
|
22
|
my ($m, $d) = @{$psunits{$unit}}; |
|
15
|
|
|
|
|
39
|
|
444
|
|
|
|
|
|
|
|
445
|
15
|
|
|
|
|
35
|
my $c = "{"; |
446
|
15
|
100
|
|
|
|
73
|
$c .= "$m mul " unless $m == 1; |
447
|
15
|
100
|
|
|
|
111
|
$c .= "$d div " unless $d == 1; |
448
|
15
|
|
|
|
|
57
|
$c =~ s/ $//; |
449
|
15
|
|
|
|
|
29
|
$c .="}"; |
450
|
15
|
|
|
|
|
67
|
$self->{usedunits}{$unit} = "/u$unit $c def"; |
451
|
|
|
|
|
|
|
} |
452
|
|
|
|
|
|
|
|
453
|
510
|
100
|
|
|
|
1127
|
$val = $rev * $val if defined $rev; |
454
|
|
|
|
|
|
|
|
455
|
510
|
|
|
|
|
2152
|
return "$val u$unit "; |
456
|
|
|
|
|
|
|
} |
457
|
|
|
|
|
|
|
|
458
|
|
|
|
|
|
|
sub _ux |
459
|
|
|
|
|
|
|
{ |
460
|
249
|
|
|
249
|
|
2103
|
my ($self, $d) = @_; |
461
|
|
|
|
|
|
|
|
462
|
249
|
|
|
|
|
657
|
return $self->_u($d, $psdirs{$self->{direction}}[0]); |
463
|
|
|
|
|
|
|
} |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
sub _uy |
466
|
|
|
|
|
|
|
{ |
467
|
248
|
|
|
248
|
|
297
|
my ($self, $d) = @_; |
468
|
|
|
|
|
|
|
|
469
|
248
|
|
|
|
|
846
|
return $self->_u($d, $psdirs{$self->{direction}}[1]); |
470
|
|
|
|
|
|
|
} |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
sub _uxy |
473
|
|
|
|
|
|
|
{ |
474
|
247
|
|
|
247
|
|
476
|
my ($self, $x, $y) = @_; |
475
|
|
|
|
|
|
|
|
476
|
247
|
|
|
|
|
1509
|
return $self->_ux($x) . $self->_uy($y); |
477
|
|
|
|
|
|
|
} |
478
|
|
|
|
|
|
|
|
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
sub init |
481
|
|
|
|
|
|
|
{ |
482
|
9
|
|
|
9
|
0
|
19
|
my $self = shift; |
483
|
|
|
|
|
|
|
|
484
|
9
|
|
|
|
|
21
|
my ($m, $d) = (1, 1); |
485
|
9
|
|
|
|
|
15
|
my ($u, $mm); |
486
|
|
|
|
|
|
|
|
487
|
|
|
|
|
|
|
# Units |
488
|
9
|
|
|
|
|
73
|
$self->{units} = lc $self->{units}; |
489
|
|
|
|
|
|
|
|
490
|
9
|
50
|
|
|
|
41
|
if (defined($psunits{$self->{units}})) { |
491
|
9
|
|
|
|
|
17
|
($m, $d) = @{$psunits{$self->{units}}}; |
|
9
|
|
|
|
|
36
|
|
492
|
|
|
|
|
|
|
} else { |
493
|
0
|
|
|
|
|
0
|
$self->_error( "unit '$self->{units}' undefined" ); |
494
|
|
|
|
|
|
|
} |
495
|
|
|
|
|
|
|
|
496
|
|
|
|
|
|
|
|
497
|
|
|
|
|
|
|
# Paper size |
498
|
9
|
100
|
|
|
|
37
|
if (defined $self->{papersize}) { |
499
|
3
|
|
|
|
|
51
|
$self->{papersize} = ucfirst lc $self->{papersize}; |
500
|
|
|
|
|
|
|
} |
501
|
|
|
|
|
|
|
|
502
|
9
|
100
|
66
|
|
|
133
|
if (!defined $self->{xsize} || !defined $self->{ysize}) { |
503
|
6
|
100
|
66
|
|
|
76
|
if (defined $self->{papersize} && defined $pspaper{$self->{papersize}}) { |
504
|
3
|
|
|
|
|
6
|
($self->{xsize}, $self->{ysize}) = @{$pspaper{$self->{papersize}}}; |
|
3
|
|
|
|
|
12
|
|
505
|
3
|
|
|
|
|
26
|
$self->{bbx2} = int($self->{xsize}); |
506
|
3
|
|
|
|
|
9
|
$self->{bby2} = int($self->{ysize}); |
507
|
3
|
|
|
|
|
53
|
$self->{pscomments} .= "\%\%DocumentMedia: $self->{papersize} $self->{xsize} "; |
508
|
3
|
|
|
|
|
16
|
$self->{pscomments} .= "$self->{ysize} 0 ( ) ( )\n"; |
509
|
|
|
|
|
|
|
} else { |
510
|
3
|
|
|
|
|
1146
|
($self->{xsize}, $self->{ysize}) = (100,100); |
511
|
3
|
|
|
|
|
16
|
$self->_error( "page size undefined" ); |
512
|
|
|
|
|
|
|
} |
513
|
|
|
|
|
|
|
} else { |
514
|
3
|
|
|
|
|
18
|
$self->{bbx2} = int(($self->{xsize} * $m) / $d); |
515
|
3
|
|
|
|
|
12
|
$self->{bby2} = int(($self->{ysize} * $m) / $d); |
516
|
|
|
|
|
|
|
} |
517
|
|
|
|
|
|
|
|
518
|
9
|
100
|
|
|
|
46
|
if (!$self->{eps}) { |
519
|
2
|
|
|
|
|
20
|
$self->{pssetup} .= "ll 2 ge { << /PageSize [ $self->{xsize} " . |
520
|
|
|
|
|
|
|
"$self->{ysize} ] /ImagingBBox null >>" . |
521
|
|
|
|
|
|
|
" setpagedevice } if\n"; |
522
|
|
|
|
|
|
|
} |
523
|
|
|
|
|
|
|
|
524
|
|
|
|
|
|
|
# Landscape |
525
|
9
|
50
|
|
|
|
36
|
if ($self->{landscape}) { |
526
|
0
|
|
|
|
|
0
|
my $swap; |
527
|
|
|
|
|
|
|
|
528
|
0
|
|
|
|
|
0
|
$self->{psfunctions} .= "/landscape { |
529
|
|
|
|
|
|
|
$self->{bbx2} 0 translate |
530
|
|
|
|
|
|
|
90 rotate |
531
|
|
|
|
|
|
|
} bind def |
532
|
|
|
|
|
|
|
"; |
533
|
|
|
|
|
|
|
# I now think that Portrait is the correct thing here, as the page is |
534
|
|
|
|
|
|
|
# rotated. |
535
|
0
|
|
|
|
|
0
|
$self->{pscomments} .= "\%\%Orientation: Portrait\n"; |
536
|
|
|
|
|
|
|
# $self->{pscomments} .= "\%\%Orientation: Landscape\n"; |
537
|
0
|
|
|
|
|
0
|
$swap = $self->{bbx2}; |
538
|
0
|
|
|
|
|
0
|
$self->{bbx2} = $self->{bby2}; |
539
|
0
|
|
|
|
|
0
|
$self->{bby2} = $swap; |
540
|
|
|
|
|
|
|
|
541
|
|
|
|
|
|
|
# for EPS files, change to landscape here, as there are no pages |
542
|
0
|
0
|
|
|
|
0
|
if ($self->{eps}) { $self->{pssetup} .= "landscape\n" } |
|
0
|
|
|
|
|
0
|
|
543
|
|
|
|
|
|
|
} else { |
544
|
9
|
|
|
|
|
26
|
$self->{pscomments} .= "\%\%Orientation: Portrait\n"; |
545
|
|
|
|
|
|
|
} |
546
|
|
|
|
|
|
|
|
547
|
|
|
|
|
|
|
# Clipping |
548
|
9
|
50
|
|
|
|
73
|
if ($self->{clip}) { |
549
|
0
|
|
|
|
|
0
|
$self->{psfunctions} .= "/pageclip {newpath $self->{bbx1} $self->{bby1} moveto |
550
|
|
|
|
|
|
|
$self->{bbx1} $self->{bby2} lineto |
551
|
|
|
|
|
|
|
$self->{bbx2} $self->{bby2} lineto |
552
|
|
|
|
|
|
|
$self->{bbx2} $self->{bby1} lineto |
553
|
|
|
|
|
|
|
$self->{bbx1} $self->{bby1} lineto |
554
|
|
|
|
|
|
|
closepath clip} bind def |
555
|
|
|
|
|
|
|
"; |
556
|
0
|
0
|
|
|
|
0
|
if ($self->{eps}) { $self->{pssetup} .= "pageclip\n" } |
|
0
|
|
|
|
|
0
|
|
557
|
|
|
|
|
|
|
} |
558
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
# Font reencoding |
560
|
9
|
100
|
|
|
|
57
|
if ($self->{reencode}) { |
561
|
8
|
|
|
|
|
20
|
my $encoding; # The name of the encoding |
562
|
|
|
|
|
|
|
my $ext; # The extention to tack onto the std fontnames |
563
|
|
|
|
|
|
|
|
564
|
8
|
50
|
|
|
|
33
|
if (ref $self->{reencode} eq 'ARRAY') { |
565
|
0
|
|
|
|
|
0
|
die "Custom reencoding of fonts not really implemented yet, sorry..."; |
566
|
0
|
|
|
|
|
0
|
$encoding = shift @{$self->{reencode}}; |
|
0
|
|
|
|
|
0
|
|
567
|
0
|
|
|
|
|
0
|
$ext = shift @{$self->{reencode}}; |
|
0
|
|
|
|
|
0
|
|
568
|
|
|
|
|
|
|
# TODO: Do something to add the actual encoding to the postscript code. |
569
|
|
|
|
|
|
|
} else { |
570
|
8
|
|
|
|
|
24
|
$encoding = $self->{reencode}; |
571
|
8
|
|
|
|
|
16
|
$ext = '-iso'; |
572
|
|
|
|
|
|
|
} |
573
|
|
|
|
|
|
|
|
574
|
8
|
|
|
|
|
55
|
$self->{psfunctions} .= <<'EOP'; |
575
|
|
|
|
|
|
|
/STARTDIFFENC { mark } bind def |
576
|
|
|
|
|
|
|
/ENDDIFFENC { |
577
|
|
|
|
|
|
|
|
578
|
|
|
|
|
|
|
% /NewEnc BaseEnc STARTDIFFENC number or glyphname ... ENDDIFFENC - |
579
|
|
|
|
|
|
|
counttomark 2 add -1 roll 256 array copy |
580
|
|
|
|
|
|
|
/TempEncode exch def |
581
|
|
|
|
|
|
|
|
582
|
|
|
|
|
|
|
% pointer for sequential encodings |
583
|
|
|
|
|
|
|
/EncodePointer 0 def |
584
|
|
|
|
|
|
|
{ |
585
|
|
|
|
|
|
|
% Get the bottom object |
586
|
|
|
|
|
|
|
counttomark -1 roll |
587
|
|
|
|
|
|
|
% Is it a mark? |
588
|
|
|
|
|
|
|
dup type dup /marktype eq { |
589
|
|
|
|
|
|
|
% End of encoding |
590
|
|
|
|
|
|
|
pop pop exit |
591
|
|
|
|
|
|
|
} { |
592
|
|
|
|
|
|
|
/nametype eq { |
593
|
|
|
|
|
|
|
% Insert the name at EncodePointer |
594
|
|
|
|
|
|
|
|
595
|
|
|
|
|
|
|
% and increment the pointer. |
596
|
|
|
|
|
|
|
TempEncode EncodePointer 3 -1 roll put |
597
|
|
|
|
|
|
|
/EncodePointer EncodePointer 1 add def |
598
|
|
|
|
|
|
|
} { |
599
|
|
|
|
|
|
|
% Set the EncodePointer to the number |
600
|
|
|
|
|
|
|
/EncodePointer exch def |
601
|
|
|
|
|
|
|
} ifelse |
602
|
|
|
|
|
|
|
} ifelse |
603
|
|
|
|
|
|
|
} loop |
604
|
|
|
|
|
|
|
|
605
|
|
|
|
|
|
|
TempEncode def |
606
|
|
|
|
|
|
|
} bind def |
607
|
|
|
|
|
|
|
|
608
|
|
|
|
|
|
|
% Define ISO Latin1 encoding if it doesnt exist |
609
|
|
|
|
|
|
|
/ISOLatin1Encoding where { |
610
|
|
|
|
|
|
|
% (ISOLatin1 exists!) = |
611
|
|
|
|
|
|
|
pop |
612
|
|
|
|
|
|
|
} { |
613
|
|
|
|
|
|
|
(ISOLatin1 does not exist, creating...) = |
614
|
|
|
|
|
|
|
/ISOLatin1Encoding StandardEncoding STARTDIFFENC |
615
|
|
|
|
|
|
|
144 /dotlessi /grave /acute /circumflex /tilde |
616
|
|
|
|
|
|
|
/macron /breve /dotaccent /dieresis /.notdef /ring |
617
|
|
|
|
|
|
|
/cedilla /.notdef /hungarumlaut /ogonek /caron /space |
618
|
|
|
|
|
|
|
/exclamdown /cent /sterling /currency /yen /brokenbar |
619
|
|
|
|
|
|
|
/section /dieresis /copyright /ordfeminine |
620
|
|
|
|
|
|
|
/guillemotleft /logicalnot /hyphen /registered |
621
|
|
|
|
|
|
|
/macron /degree /plusminus /twosuperior |
622
|
|
|
|
|
|
|
/threesuperior /acute /mu /paragraph /periodcentered |
623
|
|
|
|
|
|
|
/cedilla /onesuperior /ordmasculine /guillemotright |
624
|
|
|
|
|
|
|
/onequarter /onehalf /threequarters /questiondown |
625
|
|
|
|
|
|
|
/Agrave /Aacute /Acircumflex /Atilde /Adieresis |
626
|
|
|
|
|
|
|
/Aring /AE /Ccedilla /Egrave /Eacute /Ecircumflex |
627
|
|
|
|
|
|
|
/Edieresis /Igrave /Iacute /Icircumflex /Idieresis |
628
|
|
|
|
|
|
|
/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde |
629
|
|
|
|
|
|
|
/Odieresis /multiply /Oslash /Ugrave /Uacute |
630
|
|
|
|
|
|
|
/Ucircumflex /Udieresis /Yacute /Thorn /germandbls |
631
|
|
|
|
|
|
|
/agrave /aacute /acircumflex /atilde /adieresis |
632
|
|
|
|
|
|
|
/aring /ae /ccedilla /egrave /eacute /ecircumflex |
633
|
|
|
|
|
|
|
/edieresis /igrave /iacute /icircumflex /idieresis |
634
|
|
|
|
|
|
|
/eth /ntilde /ograve /oacute /ocircumflex /otilde |
635
|
|
|
|
|
|
|
/odieresis /divide /oslash /ugrave /uacute |
636
|
|
|
|
|
|
|
/ucircumflex /udieresis /yacute /thorn /ydieresis |
637
|
|
|
|
|
|
|
ENDDIFFENC |
638
|
|
|
|
|
|
|
} ifelse |
639
|
|
|
|
|
|
|
|
640
|
|
|
|
|
|
|
% Name: Re-encode Font |
641
|
|
|
|
|
|
|
% Description: Creates a new font using the named encoding. |
642
|
|
|
|
|
|
|
|
643
|
|
|
|
|
|
|
/REENCODEFONT { % /Newfont NewEncoding /Oldfont |
644
|
|
|
|
|
|
|
findfont dup length 4 add dict |
645
|
|
|
|
|
|
|
begin |
646
|
|
|
|
|
|
|
{ % forall |
647
|
|
|
|
|
|
|
1 index /FID ne |
648
|
|
|
|
|
|
|
2 index /UniqueID ne and |
649
|
|
|
|
|
|
|
2 index /XUID ne and |
650
|
|
|
|
|
|
|
{ def } { pop pop } ifelse |
651
|
|
|
|
|
|
|
} forall |
652
|
|
|
|
|
|
|
/Encoding exch def |
653
|
|
|
|
|
|
|
% defs for DPS |
654
|
|
|
|
|
|
|
/BitmapWidths false def |
655
|
|
|
|
|
|
|
/ExactSize 0 def |
656
|
|
|
|
|
|
|
/InBetweenSize 0 def |
657
|
|
|
|
|
|
|
/TransformedChar 0 def |
658
|
|
|
|
|
|
|
currentdict |
659
|
|
|
|
|
|
|
end |
660
|
|
|
|
|
|
|
definefont pop |
661
|
|
|
|
|
|
|
} bind def |
662
|
|
|
|
|
|
|
|
663
|
|
|
|
|
|
|
% Reencode the std fonts: |
664
|
|
|
|
|
|
|
EOP |
665
|
|
|
|
|
|
|
|
666
|
8
|
|
|
|
|
24
|
for my $font (@fonts) { |
667
|
104
|
|
|
|
|
396
|
$self->{psfunctions} .= "/${font}$ext $encoding /$font REENCODEFONT\n"; |
668
|
|
|
|
|
|
|
} |
669
|
|
|
|
|
|
|
} |
670
|
|
|
|
|
|
|
} |
671
|
|
|
|
|
|
|
|
672
|
|
|
|
|
|
|
|
673
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
674
|
|
|
|
|
|
|
|
675
|
|
|
|
|
|
|
=head1 OBJECT METHODS |
676
|
|
|
|
|
|
|
|
677
|
|
|
|
|
|
|
All object methods return 1 for success or 0 in some error condition (e.g. |
678
|
|
|
|
|
|
|
insufficient arguments). Error message text is also drawn on the page. |
679
|
|
|
|
|
|
|
|
680
|
|
|
|
|
|
|
=over 4 |
681
|
|
|
|
|
|
|
|
682
|
|
|
|
|
|
|
=item C |
683
|
|
|
|
|
|
|
|
684
|
|
|
|
|
|
|
Generates a new page on a PostScript file. If specified, C gives the |
685
|
|
|
|
|
|
|
number (or name) of the page. This method should not be used for EPS files. |
686
|
|
|
|
|
|
|
|
687
|
|
|
|
|
|
|
The page number is automatically incremented each time this is called without |
688
|
|
|
|
|
|
|
a new page number, or decremented if the current page number is negative. |
689
|
|
|
|
|
|
|
|
690
|
|
|
|
|
|
|
Example: |
691
|
|
|
|
|
|
|
|
692
|
|
|
|
|
|
|
$p->newpage(1); |
693
|
|
|
|
|
|
|
$p->newpage; |
694
|
|
|
|
|
|
|
$p->newpage("hello"); |
695
|
|
|
|
|
|
|
$p->newpage(-6); |
696
|
|
|
|
|
|
|
$p->newpage; |
697
|
|
|
|
|
|
|
|
698
|
|
|
|
|
|
|
will generate five pages, numbered: 1, 2, "hello", -6, -7. |
699
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
=cut |
701
|
|
|
|
|
|
|
|
702
|
|
|
|
|
|
|
sub newpage |
703
|
|
|
|
|
|
|
{ |
704
|
5
|
|
|
5
|
1
|
2409
|
my $self = shift; |
705
|
5
|
|
|
|
|
10
|
my $nextpage = shift; |
706
|
5
|
|
|
|
|
5
|
my ($x, $y); |
707
|
|
|
|
|
|
|
|
708
|
5
|
100
|
|
|
|
17
|
if (defined($nextpage)) { $self->{page} = $nextpage; } |
|
2
|
|
|
|
|
5
|
|
709
|
|
|
|
|
|
|
|
710
|
5
|
100
|
|
|
|
14
|
if ($self->{eps}) { |
711
|
|
|
|
|
|
|
# Cannot have multiple pages in an EPS file |
712
|
1
|
|
|
|
|
5
|
$self->_error("Do not use newpage for eps files!"); |
713
|
1
|
|
|
|
|
5
|
return 0; |
714
|
|
|
|
|
|
|
} |
715
|
|
|
|
|
|
|
|
716
|
4
|
100
|
|
|
|
13
|
if ($self->{pspagecount} != 0) { |
717
|
2
|
|
|
|
|
4
|
$self->{pspages} .= "\%\%PageTrailer\npagelevel restore\nshowpage\n"; |
718
|
|
|
|
|
|
|
} |
719
|
|
|
|
|
|
|
|
720
|
4
|
|
|
|
|
14
|
$self->{pspagecount} ++; |
721
|
4
|
|
|
|
|
17
|
$self->{pspages} .= "\%\%Page: $self->{page} $self->{pspagecount}\n"; |
722
|
4
|
100
|
|
|
|
11
|
if ($self->{page} >= 0) { |
723
|
2
|
|
|
|
|
3
|
$self->{page} ++; |
724
|
|
|
|
|
|
|
} else { |
725
|
2
|
|
|
|
|
4
|
$self->{page} --; |
726
|
|
|
|
|
|
|
} |
727
|
|
|
|
|
|
|
|
728
|
4
|
|
|
|
|
22
|
$self->{pspages} .= "\%\%BeginPageSetup\n"; |
729
|
4
|
|
|
|
|
9
|
$self->{pspages} .= "/pagelevel save def\n"; |
730
|
4
|
50
|
|
|
|
18
|
if ($self->{landscape}) { $self->{pspages} .= "landscape\n" } |
|
0
|
|
|
|
|
0
|
|
731
|
4
|
50
|
|
|
|
11
|
if ($self->{clip}) { $self->{pspages} .= "pageclip\n" } |
|
0
|
|
|
|
|
0
|
|
732
|
4
|
|
|
|
|
5
|
($x, $y) = @{$psorigin{$self->{coordorigin}}}; |
|
4
|
|
|
|
|
16
|
|
733
|
4
|
50
|
|
|
|
12
|
$x = $self->{xsize} if ($x < 0); |
734
|
4
|
50
|
|
|
|
9
|
$y = $self->{ysize} if ($y < 0); |
735
|
4
|
50
|
33
|
|
|
29
|
$self->{pspages} .= "$x $y translate\n" if (($x != 0) || ($y != 0)); |
736
|
4
|
|
|
|
|
8
|
$self->{pspages} .= "\%\%EndPageSetup\n"; |
737
|
|
|
|
|
|
|
|
738
|
4
|
|
|
|
|
10
|
return 1; |
739
|
|
|
|
|
|
|
} |
740
|
|
|
|
|
|
|
|
741
|
|
|
|
|
|
|
|
742
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
743
|
|
|
|
|
|
|
|
744
|
|
|
|
|
|
|
=item C |
745
|
|
|
|
|
|
|
|
746
|
|
|
|
|
|
|
Writes the current PostScript out to the file named C. Will destroy |
747
|
|
|
|
|
|
|
any existing file of the same name. |
748
|
|
|
|
|
|
|
|
749
|
|
|
|
|
|
|
Use this method whenever output is required to disk. The current PostScript |
750
|
|
|
|
|
|
|
document in memory is not cleared, and can still be extended. |
751
|
|
|
|
|
|
|
|
752
|
|
|
|
|
|
|
=cut |
753
|
|
|
|
|
|
|
|
754
|
|
|
|
|
|
|
sub _builddocument |
755
|
|
|
|
|
|
|
{ |
756
|
4
|
|
|
4
|
|
8
|
my $self = shift; |
757
|
4
|
|
|
|
|
10
|
my $title = shift; |
758
|
|
|
|
|
|
|
|
759
|
4
|
|
|
|
|
7
|
my $page; |
760
|
4
|
|
|
|
|
913
|
my $date = scalar localtime; |
761
|
4
|
|
|
|
|
16
|
my $user; |
762
|
|
|
|
|
|
|
|
763
|
4
|
50
|
|
|
|
23
|
$title = 'undefined' unless $title; |
764
|
|
|
|
|
|
|
|
765
|
4
|
|
|
|
|
12
|
$page = []; |
766
|
|
|
|
|
|
|
|
767
|
|
|
|
|
|
|
# getlogin is unimplemented on some systems |
768
|
4
|
|
|
|
|
9
|
eval { $user = getlogin; }; |
|
4
|
|
|
|
|
768665
|
|
769
|
4
|
50
|
|
|
|
41
|
$user = 'Console' unless $user; |
770
|
|
|
|
|
|
|
|
771
|
|
|
|
|
|
|
# Comments Section |
772
|
4
|
|
|
|
|
15
|
push @$page, "%!PS-Adobe-3.0"; |
773
|
4
|
100
|
|
|
|
31
|
push @$page, " EPSF-1.2" if ($self->{eps}); |
774
|
4
|
|
|
|
|
12
|
push @$page, "\n"; |
775
|
4
|
|
|
|
|
22
|
push @$page, "\%\%Title: ($title)\n"; |
776
|
4
|
|
|
|
|
10
|
push @$page, "\%\%LanguageLevel: 1\n"; |
777
|
4
|
|
|
|
|
20
|
push @$page, "\%\%Creator: PostScript::Simple perl module version $VERSION\n"; |
778
|
4
|
|
|
|
|
17
|
push @$page, "\%\%CreationDate: $date\n"; |
779
|
4
|
|
|
|
|
15
|
push @$page, "\%\%For: $user\n"; |
780
|
4
|
|
|
|
|
39
|
push @$page, \$self->{pscomments}; |
781
|
|
|
|
|
|
|
# push @$page, "\%\%DocumentFonts: \n"; |
782
|
4
|
100
|
|
|
|
37
|
if ($self->{eps}) { |
783
|
2
|
|
|
|
|
24
|
push @$page, "\%\%BoundingBox: $self->{bbx1} $self->{bby1} $self->{bbx2} $self->{bby2}\n"; |
784
|
|
|
|
|
|
|
} else { |
785
|
2
|
|
|
|
|
20
|
push @$page, "\%\%Pages: $self->{pspagecount}\n"; |
786
|
|
|
|
|
|
|
} |
787
|
4
|
|
|
|
|
20
|
push @$page, "\%\%EndComments\n"; |
788
|
|
|
|
|
|
|
|
789
|
|
|
|
|
|
|
# Prolog Section |
790
|
4
|
|
|
|
|
12
|
push @$page, "\%\%BeginProlog\n"; |
791
|
4
|
|
|
|
|
10
|
push @$page, "/ll 1 def systemdict /languagelevel known {\n"; |
792
|
4
|
|
|
|
|
12
|
push @$page, "/ll languagelevel def } if\n"; |
793
|
4
|
|
|
|
|
12
|
push @$page, \$self->{psprolog}; |
794
|
4
|
|
|
|
|
12
|
push @$page, "\%\%BeginResource: PostScript::Simple\n"; |
795
|
4
|
|
|
|
|
18
|
push @$page, \$self->{psfunctions}; |
796
|
4
|
|
|
|
|
12
|
foreach my $un (sort keys %{$self->{usedunits}}) { |
|
4
|
|
|
|
|
36
|
|
797
|
5
|
|
|
|
|
32
|
push @$page, $self->{usedunits}{$un} . "\n"; |
798
|
|
|
|
|
|
|
} |
799
|
4
|
|
|
|
|
14
|
push @$page, "\%\%EndResource\n"; |
800
|
4
|
|
|
|
|
11
|
push @$page, "\%\%EndProlog\n"; |
801
|
|
|
|
|
|
|
|
802
|
|
|
|
|
|
|
# Setup Section |
803
|
4
|
100
|
66
|
|
|
38
|
if (length($self->{pssetup}) || ($self->{copies} > 1)) { |
804
|
2
|
|
|
|
|
6
|
push @$page, "\%\%BeginSetup\n"; |
805
|
2
|
50
|
|
|
|
10
|
if ($self->{copies} > 1) { |
806
|
0
|
|
|
|
|
0
|
push @$page, "/#copies " . $self->{copies} . " def\n"; |
807
|
|
|
|
|
|
|
} |
808
|
2
|
|
|
|
|
7
|
push @$page, \$self->{pssetup}; |
809
|
2
|
|
|
|
|
5
|
push @$page, "\%\%EndSetup\n"; |
810
|
|
|
|
|
|
|
} |
811
|
|
|
|
|
|
|
|
812
|
|
|
|
|
|
|
# Pages |
813
|
4
|
|
|
|
|
13
|
push @$page, \$self->{pspages}; |
814
|
4
|
100
|
66
|
|
|
46
|
if ((!$self->{eps}) && ($self->{pspagecount} > 0)) { |
815
|
2
|
|
|
|
|
14
|
push @$page, "\%\%PageTrailer\n"; |
816
|
2
|
|
|
|
|
4
|
push @$page, "pagelevel restore\n"; |
817
|
2
|
|
|
|
|
6
|
push @$page, "showpage\n"; |
818
|
|
|
|
|
|
|
} |
819
|
|
|
|
|
|
|
|
820
|
|
|
|
|
|
|
# Trailer Section |
821
|
4
|
50
|
|
|
|
21
|
if (length($self->{pstrailer})) { |
822
|
0
|
|
|
|
|
0
|
push @$page, "\%\%Trailer\n"; |
823
|
0
|
|
|
|
|
0
|
push @$page, \$self->{pstrailer}; |
824
|
|
|
|
|
|
|
} |
825
|
4
|
|
|
|
|
14
|
push @$page, "\%\%EOF\n"; |
826
|
|
|
|
|
|
|
|
827
|
4
|
|
|
|
|
18
|
return $page; |
828
|
|
|
|
|
|
|
} |
829
|
|
|
|
|
|
|
|
830
|
|
|
|
|
|
|
|
831
|
|
|
|
|
|
|
#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
832
|
|
|
|
|
|
|
|
833
|
|
|
|
|
|
|
sub output |
834
|
|
|
|
|
|
|
{ |
835
|
5
|
|
|
5
|
1
|
26
|
my $self = shift; |
836
|
5
|
|
100
|
|
|
41
|
my $file = shift || die("Must supply a filename for output"); |
837
|
4
|
|
|
|
|
8
|
my $page; |
838
|
|
|
|
|
|
|
my $i; |
839
|
|
|
|
|
|
|
|
840
|
4
|
|
|
|
|
16
|
$page = _builddocument($self, $file); |
841
|
|
|
|
|
|
|
|
842
|
4
|
|
|
|
|
19
|
local *OUT; |
843
|
4
|
50
|
|
|
|
791
|
open(OUT, '>', $file) or die("Cannot write to file $file: $!"); |
844
|
|
|
|
|
|
|
|
845
|
4
|
|
|
|
|
18
|
foreach $i (@$page) { |
846
|
99
|
100
|
|
|
|
243
|
if (ref($i) eq "SCALAR") { |
847
|
18
|
|
|
|
|
101
|
print OUT $$i; |
848
|
|
|
|
|
|
|
} else { |
849
|
81
|
|
|
|
|
259
|
print OUT $i; |
850
|
|
|
|
|
|
|
} |
851
|
|
|
|
|
|
|
} |
852
|
|
|
|
|
|
|
|
853
|
4
|
|
|
|
|
657
|
close OUT; |
854
|
|
|
|
|
|
|
|
855
|
4
|
|
|
|
|
46
|
return 1; |
856
|
|
|
|
|
|
|
} |
857
|
|
|
|
|
|
|
|
858
|
|
|
|
|
|
|
|
859
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
860
|
|
|
|
|
|
|
|
861
|
|
|
|
|
|
|
=item C |
862
|
|
|
|
|
|
|
|
863
|
|
|
|
|
|
|
Returns the current document. |
864
|
|
|
|
|
|
|
|
865
|
|
|
|
|
|
|
Use this method whenever output is required as a scalar. The current PostScript |
866
|
|
|
|
|
|
|
document in memory is not cleared, and can still be extended. |
867
|
|
|
|
|
|
|
|
868
|
|
|
|
|
|
|
=cut |
869
|
|
|
|
|
|
|
|
870
|
|
|
|
|
|
|
sub get |
871
|
|
|
|
|
|
|
{ |
872
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
873
|
0
|
|
|
|
|
0
|
my $page; |
874
|
|
|
|
|
|
|
my $i; |
875
|
0
|
|
|
|
|
0
|
my $doc; |
876
|
|
|
|
|
|
|
|
877
|
0
|
|
|
|
|
0
|
$page = _builddocument($self, "PostScript::Simple generated page"); |
878
|
0
|
|
|
|
|
0
|
$doc = ""; |
879
|
0
|
|
|
|
|
0
|
foreach $i (@$page) { |
880
|
0
|
0
|
|
|
|
0
|
if (ref($i) eq "SCALAR") { |
881
|
0
|
|
|
|
|
0
|
$doc .= $$i; |
882
|
|
|
|
|
|
|
} else { |
883
|
0
|
|
|
|
|
0
|
$doc .= $i; |
884
|
|
|
|
|
|
|
} |
885
|
|
|
|
|
|
|
} |
886
|
0
|
|
|
|
|
0
|
return $doc; |
887
|
|
|
|
|
|
|
} |
888
|
|
|
|
|
|
|
|
889
|
|
|
|
|
|
|
|
890
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
891
|
|
|
|
|
|
|
|
892
|
|
|
|
|
|
|
=item C |
893
|
|
|
|
|
|
|
|
894
|
|
|
|
|
|
|
Returns the current document as a PostScript::Simple::EPS object. Only works if |
895
|
|
|
|
|
|
|
the current document is EPS. |
896
|
|
|
|
|
|
|
|
897
|
|
|
|
|
|
|
This method calls new PostScript::Simple::EPS with all the default options. To |
898
|
|
|
|
|
|
|
change these, call it yourself as below, rather than using this method. |
899
|
|
|
|
|
|
|
|
900
|
|
|
|
|
|
|
$eps = new PostScript::Simple::EPS(source => $ps->get); |
901
|
|
|
|
|
|
|
|
902
|
|
|
|
|
|
|
=cut |
903
|
|
|
|
|
|
|
|
904
|
|
|
|
|
|
|
sub geteps |
905
|
|
|
|
|
|
|
{ |
906
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
907
|
0
|
|
|
|
|
0
|
my $page; |
908
|
|
|
|
|
|
|
my $i; |
909
|
0
|
|
|
|
|
0
|
my $doc; |
910
|
0
|
|
|
|
|
0
|
my $eps; |
911
|
|
|
|
|
|
|
|
912
|
0
|
0
|
|
|
|
0
|
croak "document is not EPS" unless ($$self{eps} == 1); |
913
|
|
|
|
|
|
|
|
914
|
0
|
|
|
|
|
0
|
$eps = new PostScript::Simple::EPS(source => $self->get); |
915
|
0
|
|
|
|
|
0
|
return $eps; |
916
|
|
|
|
|
|
|
} |
917
|
|
|
|
|
|
|
|
918
|
|
|
|
|
|
|
|
919
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
920
|
|
|
|
|
|
|
|
921
|
|
|
|
|
|
|
=item C |
922
|
|
|
|
|
|
|
|
923
|
|
|
|
|
|
|
Sets the new drawing colour to the RGB values specified in C, C and |
924
|
|
|
|
|
|
|
C. The values range from 0 to 255. |
925
|
|
|
|
|
|
|
|
926
|
|
|
|
|
|
|
Alternatively, a colour name may be specified. Those currently defined are |
927
|
|
|
|
|
|
|
listed at the top of the PostScript::Simple module in the C<%pscolours> hash |
928
|
|
|
|
|
|
|
and include the standard X-Windows colour names. |
929
|
|
|
|
|
|
|
|
930
|
|
|
|
|
|
|
Example: |
931
|
|
|
|
|
|
|
|
932
|
|
|
|
|
|
|
# set new colour to brown |
933
|
|
|
|
|
|
|
$p->setcolour(200,100,0); |
934
|
|
|
|
|
|
|
# set new colour to black |
935
|
|
|
|
|
|
|
$p->setcolour("black"); |
936
|
|
|
|
|
|
|
|
937
|
|
|
|
|
|
|
=cut |
938
|
|
|
|
|
|
|
|
939
|
|
|
|
|
|
|
sub setcolour |
940
|
|
|
|
|
|
|
{ |
941
|
52
|
|
|
52
|
1
|
659
|
my $self = shift; |
942
|
52
|
|
|
|
|
69
|
my ($r, $g, $b) = @_; |
943
|
|
|
|
|
|
|
|
944
|
52
|
100
|
|
|
|
113
|
if ( @_ == 1 ) { |
945
|
10
|
|
|
|
|
19
|
$r = lc $r; |
946
|
10
|
100
|
|
|
|
28
|
if (defined $pscolours{$r}) { |
947
|
9
|
|
|
|
|
11
|
($r, $g, $b) = @{$pscolours{$r}}; |
|
9
|
|
|
|
|
29
|
|
948
|
|
|
|
|
|
|
} else { |
949
|
1
|
|
|
|
|
23
|
$self->_error( "bad colour name '$r'" ); |
950
|
1
|
|
|
|
|
5
|
return 0; |
951
|
|
|
|
|
|
|
} |
952
|
|
|
|
|
|
|
} |
953
|
|
|
|
|
|
|
|
954
|
51
|
|
|
|
|
78
|
my $bad = 0; |
955
|
51
|
50
|
|
|
|
100
|
if (not defined $r) { $r = 'undef'; $bad = 1; } |
|
0
|
|
|
|
|
0
|
|
|
0
|
|
|
|
|
0
|
|
956
|
51
|
50
|
|
|
|
93
|
if (not defined $g) { $g = 'undef'; $bad = 1; } |
|
0
|
|
|
|
|
0
|
|
|
0
|
|
|
|
|
0
|
|
957
|
51
|
100
|
|
|
|
105
|
if (not defined $b) { $b = 'undef'; $bad = 1; } |
|
2
|
|
|
|
|
4
|
|
|
2
|
|
|
|
|
3
|
|
958
|
|
|
|
|
|
|
|
959
|
51
|
100
|
|
|
|
96
|
if ($bad) { |
960
|
2
|
|
|
|
|
11
|
$self->_error( "setcolour given invalid arguments: $r, $g, $b" ); |
961
|
2
|
|
|
|
|
7
|
return 0; |
962
|
|
|
|
|
|
|
} |
963
|
|
|
|
|
|
|
|
964
|
|
|
|
|
|
|
# make sure floats aren't too long, and means the tests pass when |
965
|
|
|
|
|
|
|
# using a system with long doubles enabled by default |
966
|
49
|
|
|
|
|
300
|
$r = 0 + sprintf("%0.5f", $r / 255); |
967
|
49
|
|
|
|
|
165
|
$g = 0 + sprintf("%0.5f", $g / 255); |
968
|
49
|
|
|
|
|
289
|
$b = 0 + sprintf("%0.5f", $b / 255); |
969
|
|
|
|
|
|
|
|
970
|
49
|
50
|
|
|
|
99
|
if ($self->{colour}) { |
971
|
49
|
|
|
|
|
244
|
$self->{pspages} .= "$r $g $b setrgbcolor\n"; |
972
|
|
|
|
|
|
|
} else { |
973
|
|
|
|
|
|
|
# Better colour->grey conversion than just 0.33 of each: |
974
|
0
|
|
|
|
|
0
|
$r = 0.3*$r + 0.59*$g + 0.11*$b; |
975
|
0
|
|
|
|
|
0
|
$r = 0 + sprintf("%0.5f", $r / 255); |
976
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "$r setgray\n"; |
977
|
|
|
|
|
|
|
} |
978
|
|
|
|
|
|
|
|
979
|
49
|
|
|
|
|
950
|
return 1; |
980
|
|
|
|
|
|
|
} |
981
|
|
|
|
|
|
|
|
982
|
|
|
|
|
|
|
|
983
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
984
|
|
|
|
|
|
|
|
985
|
|
|
|
|
|
|
=item C |
986
|
|
|
|
|
|
|
|
987
|
|
|
|
|
|
|
Sets the new line width to C units. |
988
|
|
|
|
|
|
|
|
989
|
|
|
|
|
|
|
Example: |
990
|
|
|
|
|
|
|
|
991
|
|
|
|
|
|
|
# draw a line 10mm long and 4mm wide |
992
|
|
|
|
|
|
|
$p = new PostScript::Simple(units => "mm"); |
993
|
|
|
|
|
|
|
$p->setlinewidth(4); |
994
|
|
|
|
|
|
|
$p->line(10,10, 20,10); |
995
|
|
|
|
|
|
|
|
996
|
|
|
|
|
|
|
=cut |
997
|
|
|
|
|
|
|
|
998
|
|
|
|
|
|
|
sub setlinewidth |
999
|
|
|
|
|
|
|
{ |
1000
|
5
|
|
|
5
|
1
|
27
|
my $self = shift; |
1001
|
5
|
|
66
|
|
|
18
|
my $width = shift || do { |
1002
|
|
|
|
|
|
|
$self->_error( "setlinewidth not given a width" ); return 0; |
1003
|
|
|
|
|
|
|
}; |
1004
|
|
|
|
|
|
|
|
1005
|
4
|
100
|
|
|
|
16
|
$width = "0.4 bp" if $width eq "thin"; |
1006
|
|
|
|
|
|
|
|
1007
|
4
|
|
|
|
|
13
|
$self->{pspages} .= $self->_u($width) . "setlinewidth\n"; |
1008
|
|
|
|
|
|
|
|
1009
|
4
|
|
|
|
|
11
|
return 1; |
1010
|
|
|
|
|
|
|
} |
1011
|
|
|
|
|
|
|
|
1012
|
|
|
|
|
|
|
|
1013
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1014
|
|
|
|
|
|
|
|
1015
|
|
|
|
|
|
|
=item C |
1016
|
|
|
|
|
|
|
|
1017
|
|
|
|
|
|
|
Draws a line from the co-ordinates (x1,x2) to (x2,y2). If values are specified |
1018
|
|
|
|
|
|
|
for C, C and C, then the colour is set before the line is drawn. |
1019
|
|
|
|
|
|
|
|
1020
|
|
|
|
|
|
|
Example: |
1021
|
|
|
|
|
|
|
|
1022
|
|
|
|
|
|
|
# set the colour to black |
1023
|
|
|
|
|
|
|
$p->setcolour("black"); |
1024
|
|
|
|
|
|
|
|
1025
|
|
|
|
|
|
|
# draw a line in the current colour (black) |
1026
|
|
|
|
|
|
|
$p->line(10,10, 10,20); |
1027
|
|
|
|
|
|
|
|
1028
|
|
|
|
|
|
|
# draw a line in red |
1029
|
|
|
|
|
|
|
$p->line(20,10, 20,20, 255,0,0); |
1030
|
|
|
|
|
|
|
|
1031
|
|
|
|
|
|
|
# draw another line in red |
1032
|
|
|
|
|
|
|
$p->line(30,10, 30,20); |
1033
|
|
|
|
|
|
|
|
1034
|
|
|
|
|
|
|
=cut |
1035
|
|
|
|
|
|
|
|
1036
|
|
|
|
|
|
|
sub line |
1037
|
|
|
|
|
|
|
{ |
1038
|
12
|
|
|
12
|
1
|
49
|
my $self = shift; |
1039
|
12
|
|
|
|
|
24
|
my ($x1, $y1, $x2, $y2, $r, $g, $b) = @_; |
1040
|
|
|
|
|
|
|
|
1041
|
12
|
50
|
66
|
|
|
52
|
if ((!$self->{pspagecount}) and (!$self->{eps})) { |
1042
|
|
|
|
|
|
|
# Cannot draw on to non-page when not an eps file |
1043
|
0
|
|
|
|
|
0
|
return 0; |
1044
|
|
|
|
|
|
|
} |
1045
|
|
|
|
|
|
|
|
1046
|
12
|
100
|
|
|
|
48
|
if ( @_ == 7 ) { |
|
|
100
|
|
|
|
|
|
1047
|
3
|
|
|
|
|
10
|
$self->setcolour($r, $g, $b); |
1048
|
|
|
|
|
|
|
} elsif ( @_ != 4 ) { |
1049
|
2
|
|
|
|
|
7
|
$self->_error( "wrong number of args for line" ); |
1050
|
2
|
|
|
|
|
10
|
return 0; |
1051
|
|
|
|
|
|
|
} |
1052
|
|
|
|
|
|
|
|
1053
|
10
|
|
|
|
|
25
|
$self->newpath; |
1054
|
10
|
|
|
|
|
44
|
$self->moveto($x1, $y1); |
1055
|
10
|
|
|
|
|
29
|
$self->{pspages} .= $self->_uxy($x2, $y2) . "lineto stroke\n"; |
1056
|
|
|
|
|
|
|
|
1057
|
10
|
|
|
|
|
35
|
return 1; |
1058
|
|
|
|
|
|
|
} |
1059
|
|
|
|
|
|
|
|
1060
|
|
|
|
|
|
|
|
1061
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1062
|
|
|
|
|
|
|
|
1063
|
|
|
|
|
|
|
=item C |
1064
|
|
|
|
|
|
|
|
1065
|
|
|
|
|
|
|
Assuming the previous command was C, C, C or |
1066
|
|
|
|
|
|
|
C, extend that line to include another segment to the co-ordinates |
1067
|
|
|
|
|
|
|
(x,y). Behaviour after any other method is unspecified. |
1068
|
|
|
|
|
|
|
|
1069
|
|
|
|
|
|
|
Example: |
1070
|
|
|
|
|
|
|
|
1071
|
|
|
|
|
|
|
$p->line(10,10, 10,20); |
1072
|
|
|
|
|
|
|
$p->linextend(20,20); |
1073
|
|
|
|
|
|
|
$p->linextend(20,10); |
1074
|
|
|
|
|
|
|
$p->linextend(10,10); |
1075
|
|
|
|
|
|
|
|
1076
|
|
|
|
|
|
|
Notes |
1077
|
|
|
|
|
|
|
|
1078
|
|
|
|
|
|
|
The C method may be more appropriate. |
1079
|
|
|
|
|
|
|
|
1080
|
|
|
|
|
|
|
=cut |
1081
|
|
|
|
|
|
|
|
1082
|
|
|
|
|
|
|
sub linextend |
1083
|
|
|
|
|
|
|
{ |
1084
|
6
|
|
|
6
|
1
|
22
|
my $self = shift; |
1085
|
6
|
|
|
|
|
9
|
my ($x, $y) = @_; |
1086
|
|
|
|
|
|
|
|
1087
|
6
|
100
|
|
|
|
24
|
unless ( @_ == 2 ) { |
1088
|
1
|
|
|
|
|
3
|
$self->_error( "wrong number of args for linextend" ); |
1089
|
1
|
|
|
|
|
4
|
return 0; |
1090
|
|
|
|
|
|
|
} |
1091
|
|
|
|
|
|
|
|
1092
|
5
|
|
|
|
|
16
|
my $out = $self->_uxy($x, $y) . "lineto stroke\n"; |
1093
|
5
|
|
|
|
|
74
|
$self->{pspages} =~ s/eto stroke\n$/eto\n$out/; |
1094
|
|
|
|
|
|
|
|
1095
|
|
|
|
|
|
|
# perhaps we need something like $self->{_lastcommand} to know if operations |
1096
|
|
|
|
|
|
|
# are valid, rather than using a regexp? |
1097
|
|
|
|
|
|
|
|
1098
|
5
|
|
|
|
|
16
|
return 1; |
1099
|
|
|
|
|
|
|
} |
1100
|
|
|
|
|
|
|
|
1101
|
|
|
|
|
|
|
|
1102
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1103
|
|
|
|
|
|
|
|
1104
|
|
|
|
|
|
|
=item C |
1105
|
|
|
|
|
|
|
|
1106
|
|
|
|
|
|
|
Draws an arc on the circle of radius C with centre (C,C). The arc |
1107
|
|
|
|
|
|
|
starts at angle C and finishes at C. Angles are specified |
1108
|
|
|
|
|
|
|
in degrees, where 0 is at 3 o'clock, and the direction of travel is anti-clockwise. |
1109
|
|
|
|
|
|
|
|
1110
|
|
|
|
|
|
|
Any options are passed in a hash reference as the first parameter. The available |
1111
|
|
|
|
|
|
|
option is: |
1112
|
|
|
|
|
|
|
|
1113
|
|
|
|
|
|
|
=over 4 |
1114
|
|
|
|
|
|
|
|
1115
|
|
|
|
|
|
|
=item filled => 1 |
1116
|
|
|
|
|
|
|
|
1117
|
|
|
|
|
|
|
If C is 1 then the arc will be filled in. |
1118
|
|
|
|
|
|
|
|
1119
|
|
|
|
|
|
|
=back |
1120
|
|
|
|
|
|
|
|
1121
|
|
|
|
|
|
|
Example: |
1122
|
|
|
|
|
|
|
|
1123
|
|
|
|
|
|
|
# semi-circle |
1124
|
|
|
|
|
|
|
$p->arc(10, 10, 5, 0, 180); |
1125
|
|
|
|
|
|
|
|
1126
|
|
|
|
|
|
|
# complete filled circle |
1127
|
|
|
|
|
|
|
$p->arc({filled=>1}, 30, 30, 10, 0, 360); |
1128
|
|
|
|
|
|
|
|
1129
|
|
|
|
|
|
|
=cut |
1130
|
|
|
|
|
|
|
|
1131
|
|
|
|
|
|
|
sub arc |
1132
|
|
|
|
|
|
|
{ |
1133
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
1134
|
0
|
|
|
|
|
0
|
my %opt = (); |
1135
|
|
|
|
|
|
|
|
1136
|
0
|
0
|
|
|
|
0
|
if (ref($_[0])) { |
1137
|
0
|
|
|
|
|
0
|
%opt = %{; shift}; |
|
0
|
|
|
|
|
0
|
|
1138
|
|
|
|
|
|
|
} |
1139
|
|
|
|
|
|
|
|
1140
|
0
|
0
|
0
|
|
|
0
|
if ((!$self->{pspagecount}) and (!$self->{eps})) { |
1141
|
|
|
|
|
|
|
# Cannot draw on to non-page when not an eps file |
1142
|
0
|
|
|
|
|
0
|
return 0; |
1143
|
|
|
|
|
|
|
} |
1144
|
|
|
|
|
|
|
|
1145
|
0
|
|
|
|
|
0
|
my ($x, $y, $r, $sa, $ea) = @_; |
1146
|
|
|
|
|
|
|
|
1147
|
0
|
0
|
|
|
|
0
|
unless (@_ == 5) { |
1148
|
0
|
|
|
|
|
0
|
$self->_error("arc: wrong number of arguments"); |
1149
|
0
|
|
|
|
|
0
|
return 0; |
1150
|
|
|
|
|
|
|
} |
1151
|
|
|
|
|
|
|
|
1152
|
0
|
|
|
|
|
0
|
$self->newpath; |
1153
|
0
|
|
|
|
|
0
|
$self->{pspages} .= $self->_uxy($x, $y) . $self->_u($r) . "$sa $ea arc "; |
1154
|
0
|
0
|
|
|
|
0
|
if ($opt{'filled'}) { |
1155
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "fill\n" |
1156
|
|
|
|
|
|
|
} else { |
1157
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "stroke\n" |
1158
|
|
|
|
|
|
|
} |
1159
|
|
|
|
|
|
|
|
1160
|
0
|
|
|
|
|
0
|
return 1; |
1161
|
|
|
|
|
|
|
} |
1162
|
|
|
|
|
|
|
|
1163
|
|
|
|
|
|
|
|
1164
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1165
|
|
|
|
|
|
|
|
1166
|
|
|
|
|
|
|
=item C |
1167
|
|
|
|
|
|
|
|
1168
|
|
|
|
|
|
|
The C method is multi-function, allowing many shapes to be created and |
1169
|
|
|
|
|
|
|
manipulated. Polygon draws lines from (x1,y1) to (x2,y2) and then from (x2,y2) to |
1170
|
|
|
|
|
|
|
(x3,y3) up to (xn-1,yn-1) to (xn,yn). |
1171
|
|
|
|
|
|
|
|
1172
|
|
|
|
|
|
|
Any options are passed in a hash reference as the first parameter. The available |
1173
|
|
|
|
|
|
|
options are as follows: |
1174
|
|
|
|
|
|
|
|
1175
|
|
|
|
|
|
|
=over 4 |
1176
|
|
|
|
|
|
|
|
1177
|
|
|
|
|
|
|
=item rotate => angle |
1178
|
|
|
|
|
|
|
=item rotate => [angle,x,y] |
1179
|
|
|
|
|
|
|
|
1180
|
|
|
|
|
|
|
Rotate the polygon by C degrees anti-clockwise. If x and y are specified |
1181
|
|
|
|
|
|
|
then use the co-ordinate (x,y) as the centre of rotation, otherwise use the |
1182
|
|
|
|
|
|
|
co-ordinate (x1,y1) from the main polygon. |
1183
|
|
|
|
|
|
|
|
1184
|
|
|
|
|
|
|
=item filled => 1 |
1185
|
|
|
|
|
|
|
|
1186
|
|
|
|
|
|
|
If C is 1 then the PostScript output is set to fill the object rather |
1187
|
|
|
|
|
|
|
than just draw the lines. |
1188
|
|
|
|
|
|
|
|
1189
|
|
|
|
|
|
|
=item offset => [x,y] |
1190
|
|
|
|
|
|
|
|
1191
|
|
|
|
|
|
|
Displace the object by the vector (x,y). |
1192
|
|
|
|
|
|
|
|
1193
|
|
|
|
|
|
|
=back |
1194
|
|
|
|
|
|
|
|
1195
|
|
|
|
|
|
|
Example: |
1196
|
|
|
|
|
|
|
|
1197
|
|
|
|
|
|
|
# draw a square with lower left point at (10,10) |
1198
|
|
|
|
|
|
|
$p->polygon(10,10, 10,20, 20,20, 20,10, 10,10); |
1199
|
|
|
|
|
|
|
|
1200
|
|
|
|
|
|
|
# draw a filled square with lower left point at (20,20) |
1201
|
|
|
|
|
|
|
$p->polygon( {offset => [10,10], filled => 1}, |
1202
|
|
|
|
|
|
|
10,10, 10,20, 20,20, 20,10, 10,10); |
1203
|
|
|
|
|
|
|
|
1204
|
|
|
|
|
|
|
# draw a filled square with lower left point at (10,10) |
1205
|
|
|
|
|
|
|
# rotated 45 degrees (about the point (10,10)) |
1206
|
|
|
|
|
|
|
$p->polygon( {rotate => 45, filled => 1}, |
1207
|
|
|
|
|
|
|
10,10, 10,20, 20,20, 20,10, 10,10); |
1208
|
|
|
|
|
|
|
|
1209
|
|
|
|
|
|
|
=cut |
1210
|
|
|
|
|
|
|
|
1211
|
|
|
|
|
|
|
sub polygon |
1212
|
|
|
|
|
|
|
{ |
1213
|
27
|
|
|
27
|
1
|
158
|
my $self = shift; |
1214
|
|
|
|
|
|
|
|
1215
|
27
|
|
|
|
|
44
|
my %opt = (); |
1216
|
27
|
|
|
|
|
81
|
my ($xoffset, $yoffset) = (0,0); |
1217
|
27
|
|
|
|
|
68
|
my ($rotate, $rotatex, $rotatey) = (0,0,0); |
1218
|
|
|
|
|
|
|
|
1219
|
27
|
100
|
|
|
|
74
|
if ($#_ < 3) { |
1220
|
|
|
|
|
|
|
# cannot have polygon with just one point... |
1221
|
1
|
|
|
|
|
4
|
$self->_error( "bad polygon - not enough points" ); |
1222
|
1
|
|
|
|
|
4
|
return 0; |
1223
|
|
|
|
|
|
|
} |
1224
|
|
|
|
|
|
|
|
1225
|
26
|
100
|
|
|
|
62
|
if (ref($_[0])) { |
1226
|
24
|
|
|
|
|
23
|
%opt = %{; shift}; |
|
24
|
|
|
|
|
94
|
|
1227
|
|
|
|
|
|
|
} |
1228
|
|
|
|
|
|
|
|
1229
|
26
|
|
|
|
|
40
|
my $x = shift; |
1230
|
26
|
|
|
|
|
28
|
my $y = shift; |
1231
|
|
|
|
|
|
|
|
1232
|
26
|
100
|
|
|
|
56
|
if (defined $opt{'rotate'}) { |
1233
|
22
|
100
|
|
|
|
54
|
if (ref($opt{'rotate'})) { |
1234
|
20
|
|
|
|
|
19
|
($rotate, $rotatex, $rotatey) = @{$opt{'rotate'}}; |
|
20
|
|
|
|
|
39
|
|
1235
|
|
|
|
|
|
|
} else { |
1236
|
2
|
|
|
|
|
6
|
($rotate, $rotatex, $rotatey) = ($opt{'rotate'}, $x, $y); |
1237
|
|
|
|
|
|
|
} |
1238
|
|
|
|
|
|
|
} |
1239
|
|
|
|
|
|
|
|
1240
|
26
|
100
|
|
|
|
58
|
if (defined $opt{'offset'}) { |
1241
|
21
|
50
|
|
|
|
39
|
if (ref($opt{'offset'})) { |
1242
|
21
|
|
|
|
|
22
|
($xoffset, $yoffset) = @{$opt{'offset'}}; |
|
21
|
|
|
|
|
41
|
|
1243
|
|
|
|
|
|
|
} else { |
1244
|
0
|
|
|
|
|
0
|
$self->_error("polygon: bad offset option" ); |
1245
|
0
|
|
|
|
|
0
|
return 0; |
1246
|
|
|
|
|
|
|
} |
1247
|
|
|
|
|
|
|
} |
1248
|
|
|
|
|
|
|
|
1249
|
26
|
100
|
|
|
|
56
|
if (!defined $opt{'filled'}) { |
1250
|
6
|
|
|
|
|
18
|
$opt{'filled'} = 0; |
1251
|
|
|
|
|
|
|
} |
1252
|
|
|
|
|
|
|
|
1253
|
26
|
50
|
33
|
|
|
133
|
unless (defined($x) && defined($y)) { |
1254
|
0
|
|
|
|
|
0
|
$self->_error("polygon: no start point"); |
1255
|
0
|
|
|
|
|
0
|
return 0; |
1256
|
|
|
|
|
|
|
} |
1257
|
|
|
|
|
|
|
|
1258
|
26
|
100
|
100
|
|
|
141
|
my $savestate = ($xoffset || $yoffset || $rotate) ? 1 : 0 ; |
1259
|
|
|
|
|
|
|
|
1260
|
26
|
100
|
|
|
|
52
|
if ( $savestate ) { |
1261
|
23
|
|
|
|
|
39
|
$self->{pspages} .= "gsave "; |
1262
|
|
|
|
|
|
|
} |
1263
|
|
|
|
|
|
|
|
1264
|
26
|
100
|
66
|
|
|
113
|
if ($xoffset || $yoffset) { |
1265
|
3
|
|
|
|
|
10
|
$self->{pspages} .= $self->_uxy($xoffset, $yoffset) . "translate\n"; |
1266
|
|
|
|
|
|
|
} |
1267
|
|
|
|
|
|
|
|
1268
|
26
|
100
|
|
|
|
51
|
if ($rotate) { |
1269
|
21
|
100
|
|
|
|
46
|
if (!$self->{usedrotabout}) { |
1270
|
3
|
|
|
|
|
7
|
$self->{psfunctions} .= "/rotabout {3 copy pop translate rotate exch "; |
1271
|
3
|
|
|
|
|
7
|
$self->{psfunctions} .= "0 exch sub exch 0 exch sub translate} def\n"; |
1272
|
3
|
|
|
|
|
7
|
$self->{usedrotabout} = 1; |
1273
|
|
|
|
|
|
|
} |
1274
|
|
|
|
|
|
|
|
1275
|
21
|
|
|
|
|
44
|
$self->{pspages} .= $self->_uxy($rotatex, $rotatey) . "$rotate rotabout\n"; |
1276
|
|
|
|
|
|
|
} |
1277
|
|
|
|
|
|
|
|
1278
|
26
|
|
|
|
|
63
|
$self->newpath; |
1279
|
26
|
|
|
|
|
51
|
$self->moveto($x, $y); |
1280
|
|
|
|
|
|
|
|
1281
|
26
|
|
|
|
|
68
|
while ($#_ > 0) { |
1282
|
63
|
|
|
|
|
79
|
my $x = shift; |
1283
|
63
|
|
|
|
|
67
|
my $y = shift; |
1284
|
|
|
|
|
|
|
|
1285
|
63
|
|
|
|
|
127
|
$self->{pspages} .= $self->_uxy($x, $y) . "lineto "; |
1286
|
|
|
|
|
|
|
} |
1287
|
|
|
|
|
|
|
|
1288
|
26
|
100
|
|
|
|
64
|
if ($opt{'filled'}) { |
1289
|
2
|
|
|
|
|
6
|
$self->{pspages} .= "fill\n"; |
1290
|
|
|
|
|
|
|
} else { |
1291
|
24
|
|
|
|
|
39
|
$self->{pspages} .= "stroke\n"; |
1292
|
|
|
|
|
|
|
} |
1293
|
|
|
|
|
|
|
|
1294
|
26
|
100
|
|
|
|
49
|
if ( $savestate ) { |
1295
|
23
|
|
|
|
|
53
|
$self->{pspages} .= "grestore\n"; |
1296
|
|
|
|
|
|
|
} |
1297
|
|
|
|
|
|
|
|
1298
|
26
|
|
|
|
|
120
|
return 1; |
1299
|
|
|
|
|
|
|
} |
1300
|
|
|
|
|
|
|
|
1301
|
|
|
|
|
|
|
|
1302
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1303
|
|
|
|
|
|
|
|
1304
|
|
|
|
|
|
|
=item C |
1305
|
|
|
|
|
|
|
|
1306
|
|
|
|
|
|
|
Plot a circle with centre at (x,y) and radius of r. |
1307
|
|
|
|
|
|
|
|
1308
|
|
|
|
|
|
|
There is only one option. |
1309
|
|
|
|
|
|
|
|
1310
|
|
|
|
|
|
|
=over 4 |
1311
|
|
|
|
|
|
|
|
1312
|
|
|
|
|
|
|
=item filled => 1 |
1313
|
|
|
|
|
|
|
|
1314
|
|
|
|
|
|
|
If C is 1 then the PostScript output is set to fill the object rather |
1315
|
|
|
|
|
|
|
than just draw the lines. |
1316
|
|
|
|
|
|
|
|
1317
|
|
|
|
|
|
|
=back |
1318
|
|
|
|
|
|
|
|
1319
|
|
|
|
|
|
|
Example: |
1320
|
|
|
|
|
|
|
|
1321
|
|
|
|
|
|
|
$p->circle(40,40, 20); |
1322
|
|
|
|
|
|
|
$p->circle( {filled => 1}, 62,31, 15); |
1323
|
|
|
|
|
|
|
|
1324
|
|
|
|
|
|
|
=cut |
1325
|
|
|
|
|
|
|
|
1326
|
|
|
|
|
|
|
sub circle |
1327
|
|
|
|
|
|
|
{ |
1328
|
6
|
|
|
6
|
1
|
20
|
my $self = shift; |
1329
|
6
|
|
|
|
|
12
|
my %opt = (); |
1330
|
|
|
|
|
|
|
|
1331
|
6
|
100
|
|
|
|
33
|
if (ref($_[0])) { |
1332
|
2
|
|
|
|
|
4
|
%opt = %{; shift}; |
|
2
|
|
|
|
|
10
|
|
1333
|
|
|
|
|
|
|
} |
1334
|
|
|
|
|
|
|
|
1335
|
6
|
|
|
|
|
11
|
my ($x, $y, $r) = @_; |
1336
|
|
|
|
|
|
|
|
1337
|
6
|
100
|
|
|
|
18
|
unless (@_ == 3) { |
1338
|
2
|
|
|
|
|
5
|
$self->_error("circle: wrong number of arguments"); |
1339
|
2
|
|
|
|
|
10
|
return 0; |
1340
|
|
|
|
|
|
|
} |
1341
|
|
|
|
|
|
|
|
1342
|
4
|
100
|
|
|
|
13
|
if (!$self->{usedcircle}) { |
1343
|
3
|
|
|
|
|
9
|
$self->{psfunctions} .= "/circle {newpath 0 360 arc closepath} bind def\n"; |
1344
|
3
|
|
|
|
|
5
|
$self->{usedcircle} = 1; |
1345
|
|
|
|
|
|
|
} |
1346
|
|
|
|
|
|
|
|
1347
|
4
|
|
|
|
|
14
|
$self->{pspages} .= $self->_uxy($x, $y) . $self->_u($r) . "circle "; |
1348
|
4
|
100
|
|
|
|
15
|
if ($opt{'filled'}) { $self->{pspages} .= "fill\n" } |
|
2
|
|
|
|
|
5
|
|
|
2
|
|
|
|
|
9
|
|
1349
|
|
|
|
|
|
|
else {$self->{pspages} .= "stroke\n" } |
1350
|
|
|
|
|
|
|
|
1351
|
4
|
|
|
|
|
68
|
return 1; |
1352
|
|
|
|
|
|
|
} |
1353
|
|
|
|
|
|
|
|
1354
|
|
|
|
|
|
|
|
1355
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1356
|
|
|
|
|
|
|
|
1357
|
|
|
|
|
|
|
=item C |
1358
|
|
|
|
|
|
|
|
1359
|
|
|
|
|
|
|
Draw text in an arc centered about angle C with circle midpoint (C,C) |
1360
|
|
|
|
|
|
|
and radius C. |
1361
|
|
|
|
|
|
|
|
1362
|
|
|
|
|
|
|
There is only one option. |
1363
|
|
|
|
|
|
|
|
1364
|
|
|
|
|
|
|
=over 4 |
1365
|
|
|
|
|
|
|
|
1366
|
|
|
|
|
|
|
=item align => "alignment" |
1367
|
|
|
|
|
|
|
|
1368
|
|
|
|
|
|
|
C can be 'inside' or 'outside'. The default is 'inside'. |
1369
|
|
|
|
|
|
|
|
1370
|
|
|
|
|
|
|
=back |
1371
|
|
|
|
|
|
|
|
1372
|
|
|
|
|
|
|
Example: |
1373
|
|
|
|
|
|
|
|
1374
|
|
|
|
|
|
|
# outside the radius, centered at 90 degrees from the origin |
1375
|
|
|
|
|
|
|
$p->circletext(40, 40, 20, 90, "Hello, Outside World!"); |
1376
|
|
|
|
|
|
|
# inside the radius centered at 270 degrees from the origin |
1377
|
|
|
|
|
|
|
$p->circletext( {align => "inside"}, 40, 40, 20, 270, "Hello, Inside World!"); |
1378
|
|
|
|
|
|
|
|
1379
|
|
|
|
|
|
|
=cut |
1380
|
|
|
|
|
|
|
|
1381
|
|
|
|
|
|
|
sub circletext |
1382
|
|
|
|
|
|
|
{ |
1383
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
1384
|
0
|
|
|
|
|
0
|
my %opt = (); |
1385
|
|
|
|
|
|
|
|
1386
|
0
|
0
|
|
|
|
0
|
if (ref($_[0])) { |
1387
|
0
|
|
|
|
|
0
|
%opt = %{; shift}; |
|
0
|
|
|
|
|
0
|
|
1388
|
|
|
|
|
|
|
} |
1389
|
|
|
|
|
|
|
|
1390
|
0
|
|
|
|
|
0
|
my ($x, $y, $r, $a, $text) = @_; |
1391
|
|
|
|
|
|
|
|
1392
|
0
|
0
|
|
|
|
0
|
unless (@_ == 5) { |
1393
|
0
|
|
|
|
|
0
|
$self->_error("circletext: wrong number of arguments"); |
1394
|
0
|
|
|
|
|
0
|
return 0; |
1395
|
|
|
|
|
|
|
} |
1396
|
|
|
|
|
|
|
|
1397
|
0
|
0
|
|
|
|
0
|
unless (defined $self->{lastfontsize}) { |
1398
|
0
|
|
|
|
|
0
|
$self->_error("circletext: must set font first"); |
1399
|
0
|
|
|
|
|
0
|
return 0; |
1400
|
|
|
|
|
|
|
} |
1401
|
|
|
|
|
|
|
|
1402
|
0
|
0
|
|
|
|
0
|
if (!$self->{usedcircletext}) { |
1403
|
0
|
|
|
|
|
0
|
$self->{psfunctions} .= <<'EOCT'; |
1404
|
|
|
|
|
|
|
/outsidecircletext |
1405
|
|
|
|
|
|
|
{ $circtextdict begin |
1406
|
|
|
|
|
|
|
/radius exch def |
1407
|
|
|
|
|
|
|
/centerangle exch def |
1408
|
|
|
|
|
|
|
/ptsize exch def |
1409
|
|
|
|
|
|
|
/str exch def |
1410
|
|
|
|
|
|
|
/xradius radius ptsize 4 div add def |
1411
|
|
|
|
|
|
|
gsave |
1412
|
|
|
|
|
|
|
centerangle str findhalfangle add rotate |
1413
|
|
|
|
|
|
|
str { /charcode exch def ( ) dup 0 charcode put outsideshowcharandrotate } forall |
1414
|
|
|
|
|
|
|
grestore |
1415
|
|
|
|
|
|
|
end |
1416
|
|
|
|
|
|
|
} def |
1417
|
|
|
|
|
|
|
|
1418
|
|
|
|
|
|
|
/insidecircletext |
1419
|
|
|
|
|
|
|
{ $circtextdict begin |
1420
|
|
|
|
|
|
|
/radius exch def |
1421
|
|
|
|
|
|
|
/centerangle exch def |
1422
|
|
|
|
|
|
|
/ptsize exch def |
1423
|
|
|
|
|
|
|
/str exch def |
1424
|
|
|
|
|
|
|
/xradius radius ptsize 3 div sub def |
1425
|
|
|
|
|
|
|
gsave |
1426
|
|
|
|
|
|
|
centerangle str findhalfangle sub rotate |
1427
|
|
|
|
|
|
|
str { /charcode exch def ( ) dup 0 charcode put insideshowcharandrotate } forall |
1428
|
|
|
|
|
|
|
grestore |
1429
|
|
|
|
|
|
|
end |
1430
|
|
|
|
|
|
|
} def |
1431
|
|
|
|
|
|
|
/$circtextdict 16 dict def |
1432
|
|
|
|
|
|
|
$circtextdict begin |
1433
|
|
|
|
|
|
|
/findhalfangle |
1434
|
|
|
|
|
|
|
{ stringwidth pop 2 div 2 xradius mul pi mul div 360 mul |
1435
|
|
|
|
|
|
|
} def |
1436
|
|
|
|
|
|
|
/outsideshowcharandrotate |
1437
|
|
|
|
|
|
|
{ /char exch def |
1438
|
|
|
|
|
|
|
/halfangle char findhalfangle def |
1439
|
|
|
|
|
|
|
gsave |
1440
|
|
|
|
|
|
|
halfangle neg rotate radius 0 translate -90 rotate |
1441
|
|
|
|
|
|
|
char stringwidth pop 2 div neg 0 moveto char show |
1442
|
|
|
|
|
|
|
grestore |
1443
|
|
|
|
|
|
|
halfangle 2 mul neg rotate |
1444
|
|
|
|
|
|
|
} def |
1445
|
|
|
|
|
|
|
/insideshowcharandrotate |
1446
|
|
|
|
|
|
|
{ /char exch def |
1447
|
|
|
|
|
|
|
/halfangle char findhalfangle def |
1448
|
|
|
|
|
|
|
gsave |
1449
|
|
|
|
|
|
|
halfangle rotate radius 0 translate 90 rotate |
1450
|
|
|
|
|
|
|
char stringwidth pop 2 div neg 0 moveto char show |
1451
|
|
|
|
|
|
|
grestore |
1452
|
|
|
|
|
|
|
halfangle 2 mul rotate |
1453
|
|
|
|
|
|
|
} def |
1454
|
|
|
|
|
|
|
/pi 3.1415926 def |
1455
|
|
|
|
|
|
|
end |
1456
|
|
|
|
|
|
|
EOCT |
1457
|
0
|
|
|
|
|
0
|
$self->{usedcircletext} = 1; |
1458
|
|
|
|
|
|
|
} |
1459
|
|
|
|
|
|
|
|
1460
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "gsave\n"; |
1461
|
0
|
|
|
|
|
0
|
$self->{pspages} .= " " . $self->_uxy($x, $y) . "translate\n"; |
1462
|
0
|
|
|
|
|
0
|
$self->{pspages} .= " ($text) $self->{lastfontsize} $a " . $self->_u($r); |
1463
|
0
|
0
|
0
|
|
|
0
|
if ($opt{'align'} && ($opt{'align'} eq "outside")) { |
1464
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "outsidecircletext\n"; |
1465
|
|
|
|
|
|
|
} else { |
1466
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "insidecircletext\n"; |
1467
|
|
|
|
|
|
|
} |
1468
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "grestore\n"; |
1469
|
|
|
|
|
|
|
|
1470
|
0
|
|
|
|
|
0
|
return 1; |
1471
|
|
|
|
|
|
|
} |
1472
|
|
|
|
|
|
|
|
1473
|
|
|
|
|
|
|
|
1474
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1475
|
|
|
|
|
|
|
|
1476
|
|
|
|
|
|
|
=item C |
1477
|
|
|
|
|
|
|
|
1478
|
|
|
|
|
|
|
Draw a rectangle from lower left co-ordinates (x1,y1) to upper right |
1479
|
|
|
|
|
|
|
co-ordinates (y1,y2). |
1480
|
|
|
|
|
|
|
|
1481
|
|
|
|
|
|
|
Options are: |
1482
|
|
|
|
|
|
|
|
1483
|
|
|
|
|
|
|
=over 4 |
1484
|
|
|
|
|
|
|
|
1485
|
|
|
|
|
|
|
=item filled => 1 |
1486
|
|
|
|
|
|
|
|
1487
|
|
|
|
|
|
|
If C is 1 then fill the rectangle. |
1488
|
|
|
|
|
|
|
|
1489
|
|
|
|
|
|
|
=back |
1490
|
|
|
|
|
|
|
|
1491
|
|
|
|
|
|
|
Example: |
1492
|
|
|
|
|
|
|
|
1493
|
|
|
|
|
|
|
$p->box(10,10, 20,30); |
1494
|
|
|
|
|
|
|
$p->box( {filled => 1}, 10,10, 20,30); |
1495
|
|
|
|
|
|
|
|
1496
|
|
|
|
|
|
|
Notes |
1497
|
|
|
|
|
|
|
|
1498
|
|
|
|
|
|
|
The C method is far more flexible, but this method is quicker! |
1499
|
|
|
|
|
|
|
|
1500
|
|
|
|
|
|
|
=cut |
1501
|
|
|
|
|
|
|
|
1502
|
|
|
|
|
|
|
sub box |
1503
|
|
|
|
|
|
|
{ |
1504
|
41
|
|
|
41
|
1
|
178
|
my $self = shift; |
1505
|
|
|
|
|
|
|
|
1506
|
41
|
|
|
|
|
64
|
my %opt = (); |
1507
|
|
|
|
|
|
|
|
1508
|
41
|
100
|
|
|
|
100
|
if (ref($_[0])) { |
1509
|
36
|
|
|
|
|
45
|
%opt = %{; shift}; |
|
36
|
|
|
|
|
106
|
|
1510
|
|
|
|
|
|
|
} |
1511
|
|
|
|
|
|
|
|
1512
|
41
|
|
|
|
|
80
|
my ($x1, $y1, $x2, $y2) = @_; |
1513
|
|
|
|
|
|
|
|
1514
|
41
|
100
|
|
|
|
95
|
unless (@_ == 4) { |
1515
|
1
|
|
|
|
|
4
|
$self->_error("box: wrong number of arguments"); |
1516
|
1
|
|
|
|
|
4
|
return 0; |
1517
|
|
|
|
|
|
|
} |
1518
|
|
|
|
|
|
|
|
1519
|
40
|
100
|
|
|
|
90
|
if (!defined($opt{'filled'})) { |
1520
|
4
|
|
|
|
|
12
|
$opt{'filled'} = 0; |
1521
|
|
|
|
|
|
|
} |
1522
|
|
|
|
|
|
|
|
1523
|
40
|
100
|
|
|
|
102
|
unless ($self->{usedbox}) { |
1524
|
4
|
|
|
|
|
11
|
$self->{psfunctions} .= "/box { |
1525
|
|
|
|
|
|
|
newpath 3 copy pop exch 4 copy pop pop |
1526
|
|
|
|
|
|
|
8 copy pop pop pop pop exch pop exch |
1527
|
|
|
|
|
|
|
3 copy pop pop exch moveto lineto |
1528
|
|
|
|
|
|
|
lineto lineto pop pop pop pop closepath |
1529
|
|
|
|
|
|
|
} bind def |
1530
|
|
|
|
|
|
|
"; |
1531
|
4
|
|
|
|
|
14
|
$self->{usedbox} = 1; |
1532
|
|
|
|
|
|
|
} |
1533
|
|
|
|
|
|
|
|
1534
|
40
|
|
|
|
|
89
|
$self->{pspages} .= $self->_uxy($x1, $y1); |
1535
|
40
|
|
|
|
|
326
|
$self->{pspages} .= $self->_uxy($x2, $y2) . "box "; |
1536
|
40
|
100
|
|
|
|
380
|
if ($opt{'filled'}) { $self->{pspages} .= "fill\n" } |
|
36
|
|
|
|
|
789
|
|
|
4
|
|
|
|
|
12
|
|
1537
|
|
|
|
|
|
|
else {$self->{pspages} .= "stroke\n" } |
1538
|
|
|
|
|
|
|
|
1539
|
40
|
|
|
|
|
143
|
return 1; |
1540
|
|
|
|
|
|
|
} |
1541
|
|
|
|
|
|
|
|
1542
|
|
|
|
|
|
|
|
1543
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1544
|
|
|
|
|
|
|
|
1545
|
|
|
|
|
|
|
=item C |
1546
|
|
|
|
|
|
|
|
1547
|
|
|
|
|
|
|
Set the current font to the PostScript font C. Set the size in PostScript |
1548
|
|
|
|
|
|
|
points to C. |
1549
|
|
|
|
|
|
|
|
1550
|
|
|
|
|
|
|
Notes |
1551
|
|
|
|
|
|
|
|
1552
|
|
|
|
|
|
|
This method must be called on every page before the C method is used. |
1553
|
|
|
|
|
|
|
|
1554
|
|
|
|
|
|
|
=cut |
1555
|
|
|
|
|
|
|
|
1556
|
|
|
|
|
|
|
sub setfont |
1557
|
|
|
|
|
|
|
{ |
1558
|
4
|
|
|
4
|
1
|
15
|
my $self = shift; |
1559
|
4
|
|
|
|
|
9
|
my ($name, $size, $ysize) = @_; |
1560
|
|
|
|
|
|
|
|
1561
|
4
|
100
|
|
|
|
18
|
unless (@_ == 2) { |
1562
|
1
|
|
|
|
|
3
|
$self->_error( "wrong number of arguments for setfont" ); |
1563
|
1
|
|
|
|
|
4
|
return 0; |
1564
|
|
|
|
|
|
|
} |
1565
|
|
|
|
|
|
|
|
1566
|
|
|
|
|
|
|
# set font y size XXXXX |
1567
|
3
|
|
|
|
|
22
|
$self->{pspages} .= "/$name findfont $size scalefont setfont\n"; |
1568
|
|
|
|
|
|
|
|
1569
|
3
|
|
|
|
|
7
|
$self->{lastfontsize} = $size; |
1570
|
|
|
|
|
|
|
|
1571
|
3
|
|
|
|
|
11
|
return 1; |
1572
|
|
|
|
|
|
|
} |
1573
|
|
|
|
|
|
|
|
1574
|
|
|
|
|
|
|
|
1575
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1576
|
|
|
|
|
|
|
|
1577
|
|
|
|
|
|
|
=item C |
1578
|
|
|
|
|
|
|
|
1579
|
|
|
|
|
|
|
Plot text on the current page with the lower left co-ordinates at (x,y) and |
1580
|
|
|
|
|
|
|
using the current font. The text is specified in C. |
1581
|
|
|
|
|
|
|
|
1582
|
|
|
|
|
|
|
Options are: |
1583
|
|
|
|
|
|
|
|
1584
|
|
|
|
|
|
|
=over 4 |
1585
|
|
|
|
|
|
|
|
1586
|
|
|
|
|
|
|
=item align => "alignment" |
1587
|
|
|
|
|
|
|
|
1588
|
|
|
|
|
|
|
alignment can be 'left', 'centre' or 'right'. The default is 'left'. |
1589
|
|
|
|
|
|
|
|
1590
|
|
|
|
|
|
|
=item rotate => angle |
1591
|
|
|
|
|
|
|
|
1592
|
|
|
|
|
|
|
"rotate" degrees of rotation, defaults to 0 (i.e. no rotation). |
1593
|
|
|
|
|
|
|
The angle to rotate the text, in degrees. Centres about (x,y) and rotates |
1594
|
|
|
|
|
|
|
clockwise. (?). Default 0 degrees. |
1595
|
|
|
|
|
|
|
|
1596
|
|
|
|
|
|
|
=back |
1597
|
|
|
|
|
|
|
|
1598
|
|
|
|
|
|
|
Example: |
1599
|
|
|
|
|
|
|
|
1600
|
|
|
|
|
|
|
$p->setfont("Times-Roman", 12); |
1601
|
|
|
|
|
|
|
$p->text(40,40, "The frog sat on the leaf in the pond."); |
1602
|
|
|
|
|
|
|
$p->text( {align => 'centre'}, 140,40, "This is centered."); |
1603
|
|
|
|
|
|
|
$p->text( {rotate => 90}, 140,40, "This is rotated."); |
1604
|
|
|
|
|
|
|
$p->text( {rotate => 90, align => 'centre'}, 140,40, "This is both."); |
1605
|
|
|
|
|
|
|
|
1606
|
|
|
|
|
|
|
=cut |
1607
|
|
|
|
|
|
|
|
1608
|
|
|
|
|
|
|
sub text |
1609
|
|
|
|
|
|
|
{ |
1610
|
19
|
|
|
19
|
1
|
173
|
my $self = shift; |
1611
|
|
|
|
|
|
|
|
1612
|
19
|
|
|
|
|
26
|
my $rot = ""; |
1613
|
19
|
|
|
|
|
43
|
my $rot_m = ""; |
1614
|
19
|
|
|
|
|
21
|
my $align = ""; |
1615
|
19
|
|
|
|
|
30
|
my %opt = (); |
1616
|
|
|
|
|
|
|
|
1617
|
19
|
100
|
|
|
|
47
|
if (ref($_[0])) { |
1618
|
5
|
|
|
|
|
12
|
%opt = %{; shift}; |
|
5
|
|
|
|
|
28
|
|
1619
|
|
|
|
|
|
|
} |
1620
|
|
|
|
|
|
|
|
1621
|
19
|
100
|
|
|
|
46
|
unless ( @_ == 3 ) |
1622
|
|
|
|
|
|
|
{ # check required params first |
1623
|
2
|
|
|
|
|
14
|
$self->_error("text: wrong number of arguments"); |
1624
|
2
|
|
|
|
|
9
|
return 0; |
1625
|
|
|
|
|
|
|
} |
1626
|
|
|
|
|
|
|
|
1627
|
17
|
|
|
|
|
29
|
my ($x, $y, $text) = @_; |
1628
|
|
|
|
|
|
|
|
1629
|
17
|
100
|
33
|
|
|
115
|
unless (defined($x) && defined($y) && defined($text)) { |
|
|
|
66
|
|
|
|
|
1630
|
1
|
|
|
|
|
6
|
$self->_error("text: wrong number of arguments"); |
1631
|
1
|
|
|
|
|
3
|
return 0; |
1632
|
|
|
|
|
|
|
} |
1633
|
|
|
|
|
|
|
|
1634
|
|
|
|
|
|
|
# Escape text to allow parentheses |
1635
|
16
|
|
|
|
|
51
|
$text =~ s|([\\\(\)])|\\$1|g; |
1636
|
16
|
|
|
|
|
34
|
$text =~ s/([\x00-\x1f\x7f-\xff])/sprintf('\\%03o',ord($1))/ge; |
|
66
|
|
|
|
|
192
|
|
1637
|
|
|
|
|
|
|
|
1638
|
16
|
|
|
|
|
40
|
$self->newpath; |
1639
|
16
|
|
|
|
|
35
|
$self->moveto($x, $y); |
1640
|
|
|
|
|
|
|
|
1641
|
|
|
|
|
|
|
# rotation |
1642
|
|
|
|
|
|
|
|
1643
|
16
|
100
|
|
|
|
53
|
if (defined $opt{'rotate'}) { |
1644
|
3
|
|
|
|
|
7
|
my $rot_a = $opt{ 'rotate' }; |
1645
|
3
|
50
|
|
|
|
14
|
if( $rot_a != 0 ) { |
1646
|
3
|
|
|
|
|
17
|
$rot = " $rot_a rotate "; |
1647
|
3
|
|
|
|
|
7
|
$rot_a = -$rot_a; |
1648
|
3
|
|
|
|
|
12
|
$rot_m = " $rot_a rotate "; |
1649
|
|
|
|
|
|
|
}; |
1650
|
|
|
|
|
|
|
} |
1651
|
|
|
|
|
|
|
|
1652
|
|
|
|
|
|
|
# alignment |
1653
|
|
|
|
|
|
|
|
1654
|
16
|
|
|
|
|
24
|
$align = " show stroke"; |
1655
|
16
|
100
|
|
|
|
46
|
if (defined $opt{'align'}) { |
1656
|
3
|
100
|
|
|
|
17
|
$align = " dup stringwidth pop neg 0 rmoveto show" |
1657
|
|
|
|
|
|
|
if $opt{ 'align' } eq 'right'; |
1658
|
3
|
100
|
66
|
|
|
24
|
$align = " dup stringwidth pop 2 div neg 0 rmoveto show" |
1659
|
|
|
|
|
|
|
if $opt{ 'align' } eq 'center' or $opt{ 'align' } eq 'centre'; |
1660
|
|
|
|
|
|
|
} |
1661
|
|
|
|
|
|
|
|
1662
|
16
|
|
|
|
|
54
|
$self->{pspages} .= "($text) $rot $align $rot_m\n"; |
1663
|
|
|
|
|
|
|
|
1664
|
16
|
|
|
|
|
52
|
return 1; |
1665
|
|
|
|
|
|
|
} |
1666
|
|
|
|
|
|
|
|
1667
|
|
|
|
|
|
|
|
1668
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1669
|
|
|
|
|
|
|
|
1670
|
|
|
|
|
|
|
=item curve( x1, y1, x2, y2, x3, y3, x4, y4 ) |
1671
|
|
|
|
|
|
|
|
1672
|
|
|
|
|
|
|
Create a curve from (x1, y1) to (x4, y4). (x2, y2) and (x3, y3) are the |
1673
|
|
|
|
|
|
|
control points for the start- and end-points respectively. |
1674
|
|
|
|
|
|
|
|
1675
|
|
|
|
|
|
|
=cut |
1676
|
|
|
|
|
|
|
|
1677
|
|
|
|
|
|
|
sub curve |
1678
|
|
|
|
|
|
|
{ |
1679
|
2
|
|
|
2
|
1
|
5
|
my $self = shift; |
1680
|
2
|
|
|
|
|
3
|
my ($x1, $y1, $x2, $y2, $x3, $y3, $x4, $y4) = @_; |
1681
|
|
|
|
|
|
|
|
1682
|
2
|
100
|
|
|
|
8
|
unless ( @_ == 8 ) { |
1683
|
1
|
|
|
|
|
3
|
$self->_error( "bad curve definition, wrong number of args" ); |
1684
|
1
|
|
|
|
|
5
|
return 0; |
1685
|
|
|
|
|
|
|
} |
1686
|
|
|
|
|
|
|
|
1687
|
1
|
50
|
33
|
|
|
9
|
if ((!$self->{pspagecount}) and (!$self->{eps})) { |
1688
|
|
|
|
|
|
|
# Cannot draw on to non-page when not an eps file |
1689
|
0
|
|
|
|
|
0
|
return 0; |
1690
|
|
|
|
|
|
|
} |
1691
|
|
|
|
|
|
|
|
1692
|
1
|
|
|
|
|
13
|
$self->newpath; |
1693
|
1
|
|
|
|
|
11
|
$self->moveto($x1, $y1); |
1694
|
1
|
|
|
|
|
3
|
$self->{pspages} .= $self->_uxy($x2, $y2); |
1695
|
1
|
|
|
|
|
6
|
$self->{pspages} .= $self->_uxy($x3, $y3); |
1696
|
1
|
|
|
|
|
6
|
$self->{pspages} .= $self->_uxy($x4, $y4) . "curveto stroke\n"; |
1697
|
|
|
|
|
|
|
|
1698
|
1
|
|
|
|
|
6
|
return 1; |
1699
|
|
|
|
|
|
|
} |
1700
|
|
|
|
|
|
|
|
1701
|
|
|
|
|
|
|
|
1702
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1703
|
|
|
|
|
|
|
|
1704
|
|
|
|
|
|
|
=item curvextend( x1, y1, x2, y2, x3, y3 ) |
1705
|
|
|
|
|
|
|
|
1706
|
|
|
|
|
|
|
Assuming the previous command was C, C, C or |
1707
|
|
|
|
|
|
|
C, extend that path with another curve segment to the co-ordinates |
1708
|
|
|
|
|
|
|
(x3, y3). (x1, y1) and (x2, y2) are the control points. Behaviour after any |
1709
|
|
|
|
|
|
|
other method is unspecified. |
1710
|
|
|
|
|
|
|
|
1711
|
|
|
|
|
|
|
=cut |
1712
|
|
|
|
|
|
|
|
1713
|
|
|
|
|
|
|
sub curvextend |
1714
|
|
|
|
|
|
|
{ |
1715
|
2
|
|
|
2
|
1
|
5
|
my $self = shift; |
1716
|
2
|
|
|
|
|
5
|
my ($x1, $y1, $x2, $y2, $x3, $y3) = @_; |
1717
|
|
|
|
|
|
|
|
1718
|
2
|
100
|
|
|
|
7
|
unless ( @_ == 6 ) { |
1719
|
1
|
|
|
|
|
3
|
$self->_error( "bad curvextend definition, wrong number of args" ); |
1720
|
1
|
|
|
|
|
5
|
return 0; |
1721
|
|
|
|
|
|
|
} |
1722
|
|
|
|
|
|
|
|
1723
|
1
|
|
|
|
|
13
|
my $out = $self->_uxy($x1, $y1); |
1724
|
1
|
|
|
|
|
4
|
$out .= $self->_uxy($x2, $y2); |
1725
|
1
|
|
|
|
|
3
|
$out .= $self->_uxy($x3, $y3) . "curveto stroke\n"; |
1726
|
|
|
|
|
|
|
|
1727
|
|
|
|
|
|
|
# curveto may follow a lineto etc... |
1728
|
1
|
|
|
|
|
27
|
$self->{pspages} =~ s/eto stroke\n$/eto\n$out/; |
1729
|
|
|
|
|
|
|
|
1730
|
1
|
|
|
|
|
7
|
return 1; |
1731
|
|
|
|
|
|
|
} |
1732
|
|
|
|
|
|
|
|
1733
|
|
|
|
|
|
|
|
1734
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1735
|
|
|
|
|
|
|
|
1736
|
|
|
|
|
|
|
=item newpath |
1737
|
|
|
|
|
|
|
|
1738
|
|
|
|
|
|
|
This method is used internally to begin a new drawing path - you should |
1739
|
|
|
|
|
|
|
generally NEVER use it. |
1740
|
|
|
|
|
|
|
|
1741
|
|
|
|
|
|
|
=cut |
1742
|
|
|
|
|
|
|
|
1743
|
|
|
|
|
|
|
sub newpath |
1744
|
|
|
|
|
|
|
{ |
1745
|
53
|
|
|
53
|
1
|
89
|
my $self = shift; |
1746
|
|
|
|
|
|
|
|
1747
|
53
|
|
|
|
|
139
|
$self->{pspages} .= "newpath\n"; |
1748
|
|
|
|
|
|
|
|
1749
|
53
|
|
|
|
|
76
|
return 1; |
1750
|
|
|
|
|
|
|
} |
1751
|
|
|
|
|
|
|
|
1752
|
|
|
|
|
|
|
|
1753
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1754
|
|
|
|
|
|
|
|
1755
|
|
|
|
|
|
|
=item moveto( x, y ) |
1756
|
|
|
|
|
|
|
|
1757
|
|
|
|
|
|
|
This method is used internally to move the cursor to a new point at (x, y) - |
1758
|
|
|
|
|
|
|
you will generally NEVER use this method. |
1759
|
|
|
|
|
|
|
|
1760
|
|
|
|
|
|
|
=cut |
1761
|
|
|
|
|
|
|
|
1762
|
|
|
|
|
|
|
sub moveto |
1763
|
|
|
|
|
|
|
{ |
1764
|
53
|
|
|
53
|
1
|
56
|
my $self = shift; |
1765
|
53
|
|
|
|
|
68
|
my ($x, $y) = @_; |
1766
|
|
|
|
|
|
|
|
1767
|
53
|
|
|
|
|
135
|
$self->{pspages} .= $self->_uxy($x, $y) . "moveto\n"; |
1768
|
|
|
|
|
|
|
|
1769
|
53
|
|
|
|
|
101
|
return 1; |
1770
|
|
|
|
|
|
|
} |
1771
|
|
|
|
|
|
|
|
1772
|
|
|
|
|
|
|
|
1773
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1774
|
|
|
|
|
|
|
|
1775
|
|
|
|
|
|
|
=item C |
1776
|
|
|
|
|
|
|
|
1777
|
|
|
|
|
|
|
Imports an EPS file and scales/translates its bounding box to fill |
1778
|
|
|
|
|
|
|
the area defined by lower left co-ordinates (x1,y1) and upper right |
1779
|
|
|
|
|
|
|
co-ordinates (x2,y2). By default, if the co-ordinates have a different |
1780
|
|
|
|
|
|
|
aspect ratio from the bounding box, the scaling is constrained on the |
1781
|
|
|
|
|
|
|
greater dimension to keep the EPS fully inside the area. |
1782
|
|
|
|
|
|
|
|
1783
|
|
|
|
|
|
|
Options are: |
1784
|
|
|
|
|
|
|
|
1785
|
|
|
|
|
|
|
=over 4 |
1786
|
|
|
|
|
|
|
|
1787
|
|
|
|
|
|
|
=item overlap => 1 |
1788
|
|
|
|
|
|
|
|
1789
|
|
|
|
|
|
|
If C is 1 then the scaling is calculated on the lesser dimension |
1790
|
|
|
|
|
|
|
and the EPS can overlap the area. |
1791
|
|
|
|
|
|
|
|
1792
|
|
|
|
|
|
|
=item stretch => 1 |
1793
|
|
|
|
|
|
|
|
1794
|
|
|
|
|
|
|
If C is 1 then fill the entire area, ignoring the aspect ratio. |
1795
|
|
|
|
|
|
|
This option overrides C if both are given. |
1796
|
|
|
|
|
|
|
|
1797
|
|
|
|
|
|
|
=back |
1798
|
|
|
|
|
|
|
|
1799
|
|
|
|
|
|
|
Example: |
1800
|
|
|
|
|
|
|
|
1801
|
|
|
|
|
|
|
# Assume smiley.eps is a round smiley face in a square bounding box |
1802
|
|
|
|
|
|
|
|
1803
|
|
|
|
|
|
|
# Scale it to a (10,10)(20,20) box |
1804
|
|
|
|
|
|
|
$p->importepsfile("smiley.eps", 10,10, 20,20); |
1805
|
|
|
|
|
|
|
|
1806
|
|
|
|
|
|
|
# Keeps aspect ratio, constrained to smallest fit |
1807
|
|
|
|
|
|
|
$p->importepsfile("smiley.eps", 10,10, 30,20); |
1808
|
|
|
|
|
|
|
|
1809
|
|
|
|
|
|
|
# Keeps aspect ratio, allowed to overlap for largest fit |
1810
|
|
|
|
|
|
|
$p->importepsfile( {overlap => 1}, "smiley.eps", 10,10, 30,20); |
1811
|
|
|
|
|
|
|
|
1812
|
|
|
|
|
|
|
# Aspect ratio is changed to give exact fit |
1813
|
|
|
|
|
|
|
$p->importepsfile( {stretch => 1}, "smiley.eps", 10,10, 30,20); |
1814
|
|
|
|
|
|
|
|
1815
|
|
|
|
|
|
|
=cut |
1816
|
|
|
|
|
|
|
|
1817
|
|
|
|
|
|
|
sub importepsfile |
1818
|
|
|
|
|
|
|
{ |
1819
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
1820
|
|
|
|
|
|
|
|
1821
|
0
|
|
|
|
|
0
|
my $bbllx; |
1822
|
|
|
|
|
|
|
my $bblly; |
1823
|
0
|
|
|
|
|
0
|
my $bburx; |
1824
|
0
|
|
|
|
|
0
|
my $bbury; |
1825
|
0
|
|
|
|
|
0
|
my $bbw; |
1826
|
0
|
|
|
|
|
0
|
my $bbh; |
1827
|
0
|
|
|
|
|
0
|
my $pagew; |
1828
|
0
|
|
|
|
|
0
|
my $pageh; |
1829
|
0
|
|
|
|
|
0
|
my $scalex; |
1830
|
0
|
|
|
|
|
0
|
my $scaley; |
1831
|
0
|
|
|
|
|
0
|
my $line; |
1832
|
0
|
|
|
|
|
0
|
my $eps; |
1833
|
|
|
|
|
|
|
|
1834
|
0
|
|
|
|
|
0
|
my %opt = (); |
1835
|
|
|
|
|
|
|
|
1836
|
0
|
0
|
|
|
|
0
|
if (ref($_[0])) { |
1837
|
0
|
|
|
|
|
0
|
%opt = %{; shift}; |
|
0
|
|
|
|
|
0
|
|
1838
|
|
|
|
|
|
|
} |
1839
|
|
|
|
|
|
|
|
1840
|
0
|
|
|
|
|
0
|
my ($file, $x1, $y1, $x2, $y2) = @_; |
1841
|
|
|
|
|
|
|
|
1842
|
0
|
0
|
|
|
|
0
|
unless (@_ == 5) { |
1843
|
0
|
|
|
|
|
0
|
$self->_error("importepsfile: wrong number of arguments"); |
1844
|
0
|
|
|
|
|
0
|
return 0; |
1845
|
|
|
|
|
|
|
} |
1846
|
|
|
|
|
|
|
|
1847
|
0
|
0
|
|
|
|
0
|
$opt{'overlap'} = 0 if (!defined($opt{'overlap'})); |
1848
|
0
|
0
|
|
|
|
0
|
$opt{'stretch'} = 0 if (!defined($opt{'stretch'})); |
1849
|
|
|
|
|
|
|
|
1850
|
0
|
|
|
|
|
0
|
$eps = new PostScript::Simple::EPS(file => $file); |
1851
|
0
|
|
|
|
|
0
|
($bbllx, $bblly, $bburx, $bbury) = $eps->get_bbox(); |
1852
|
|
|
|
|
|
|
|
1853
|
0
|
|
|
|
|
0
|
$pagew = $x2 - $x1; |
1854
|
0
|
|
|
|
|
0
|
$pageh = $y2 - $y1; |
1855
|
|
|
|
|
|
|
|
1856
|
0
|
|
|
|
|
0
|
$bbw = $bburx - $bbllx; |
1857
|
0
|
|
|
|
|
0
|
$bbh = $bbury - $bblly; |
1858
|
|
|
|
|
|
|
|
1859
|
0
|
0
|
0
|
|
|
0
|
if (($bbw == 0) || ($bbh == 0)) { |
1860
|
0
|
|
|
|
|
0
|
$self->_error("importeps: Bounding Box has zero dimension"); |
1861
|
0
|
|
|
|
|
0
|
return 0; |
1862
|
|
|
|
|
|
|
} |
1863
|
|
|
|
|
|
|
|
1864
|
0
|
|
|
|
|
0
|
$scalex = $pagew / $bbw; |
1865
|
0
|
|
|
|
|
0
|
$scaley = $pageh / $bbh; |
1866
|
|
|
|
|
|
|
|
1867
|
0
|
0
|
|
|
|
0
|
if ($opt{'stretch'} == 0) { |
1868
|
0
|
0
|
|
|
|
0
|
if ($opt{'overlap'} == 0) { |
1869
|
0
|
0
|
|
|
|
0
|
if ($scalex > $scaley) { |
1870
|
0
|
|
|
|
|
0
|
$scalex = $scaley; |
1871
|
|
|
|
|
|
|
} else { |
1872
|
0
|
|
|
|
|
0
|
$scaley = $scalex; |
1873
|
|
|
|
|
|
|
} |
1874
|
|
|
|
|
|
|
} else { |
1875
|
0
|
0
|
|
|
|
0
|
if ($scalex > $scaley) { |
1876
|
0
|
|
|
|
|
0
|
$scaley = $scalex; |
1877
|
|
|
|
|
|
|
} else { |
1878
|
0
|
|
|
|
|
0
|
$scalex = $scaley; |
1879
|
|
|
|
|
|
|
} |
1880
|
|
|
|
|
|
|
} |
1881
|
|
|
|
|
|
|
} |
1882
|
|
|
|
|
|
|
|
1883
|
0
|
|
|
|
|
0
|
$eps->scale($scalex, $scaley); |
1884
|
0
|
|
|
|
|
0
|
$eps->translate(-$bbllx, -$bblly); |
1885
|
0
|
|
|
|
|
0
|
$self->_add_eps($eps, $x1, $y1); |
1886
|
|
|
|
|
|
|
|
1887
|
0
|
|
|
|
|
0
|
return 1; |
1888
|
|
|
|
|
|
|
} |
1889
|
|
|
|
|
|
|
|
1890
|
|
|
|
|
|
|
|
1891
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1892
|
|
|
|
|
|
|
|
1893
|
|
|
|
|
|
|
=item C |
1894
|
|
|
|
|
|
|
|
1895
|
|
|
|
|
|
|
Imports a PostScript::Simple::EPS object into the current document at position |
1896
|
|
|
|
|
|
|
C<(x,y)>. |
1897
|
|
|
|
|
|
|
|
1898
|
|
|
|
|
|
|
Example: |
1899
|
|
|
|
|
|
|
|
1900
|
|
|
|
|
|
|
use PostScript::Simple; |
1901
|
|
|
|
|
|
|
|
1902
|
|
|
|
|
|
|
# create a new PostScript object |
1903
|
|
|
|
|
|
|
$p = new PostScript::Simple(papersize => "A4", |
1904
|
|
|
|
|
|
|
colour => 1, |
1905
|
|
|
|
|
|
|
units => "in"); |
1906
|
|
|
|
|
|
|
|
1907
|
|
|
|
|
|
|
# create a new page |
1908
|
|
|
|
|
|
|
$p->newpage; |
1909
|
|
|
|
|
|
|
|
1910
|
|
|
|
|
|
|
# create an eps object |
1911
|
|
|
|
|
|
|
$e = new PostScript::Simple::EPS(file => "test.eps"); |
1912
|
|
|
|
|
|
|
$e->rotate(90); |
1913
|
|
|
|
|
|
|
$e->scale(0.5); |
1914
|
|
|
|
|
|
|
|
1915
|
|
|
|
|
|
|
# add eps to the current page |
1916
|
|
|
|
|
|
|
$p->importeps($e, 10,50); |
1917
|
|
|
|
|
|
|
|
1918
|
|
|
|
|
|
|
=cut |
1919
|
|
|
|
|
|
|
|
1920
|
|
|
|
|
|
|
sub importeps |
1921
|
|
|
|
|
|
|
{ |
1922
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
1923
|
0
|
|
|
|
|
0
|
my ($epsobj, $xpos, $ypos) = @_; |
1924
|
|
|
|
|
|
|
|
1925
|
0
|
0
|
|
|
|
0
|
unless (@_ == 3) { |
1926
|
0
|
|
|
|
|
0
|
$self->_error("importeps: wrong number of arguments"); |
1927
|
0
|
|
|
|
|
0
|
return 0; |
1928
|
|
|
|
|
|
|
} |
1929
|
|
|
|
|
|
|
|
1930
|
0
|
|
|
|
|
0
|
$self->_add_eps($epsobj, $xpos, $ypos); |
1931
|
|
|
|
|
|
|
|
1932
|
0
|
|
|
|
|
0
|
return 1; |
1933
|
|
|
|
|
|
|
} |
1934
|
|
|
|
|
|
|
|
1935
|
|
|
|
|
|
|
|
1936
|
|
|
|
|
|
|
################################################################################ |
1937
|
|
|
|
|
|
|
# PRIVATE methods |
1938
|
|
|
|
|
|
|
|
1939
|
|
|
|
|
|
|
sub _add_eps |
1940
|
|
|
|
|
|
|
{ |
1941
|
0
|
|
|
0
|
|
0
|
my $self = shift; |
1942
|
0
|
|
|
|
|
0
|
my $epsobj; |
1943
|
|
|
|
|
|
|
my $xpos; |
1944
|
0
|
|
|
|
|
0
|
my $ypos; |
1945
|
|
|
|
|
|
|
|
1946
|
0
|
0
|
|
|
|
0
|
if (ref($_[0]) ne "PostScript::Simple::EPS") { |
1947
|
0
|
|
|
|
|
0
|
croak "internal error: _add_eps[0] must be eps object"; |
1948
|
|
|
|
|
|
|
} |
1949
|
|
|
|
|
|
|
|
1950
|
0
|
0
|
0
|
|
|
0
|
if ((!$self->{pspagecount}) and (!$self->{eps})) { |
1951
|
|
|
|
|
|
|
# Cannot draw on to non-page when not an eps file |
1952
|
0
|
|
|
|
|
0
|
$self->_error("importeps: no current page"); |
1953
|
0
|
|
|
|
|
0
|
return 0; |
1954
|
|
|
|
|
|
|
} |
1955
|
|
|
|
|
|
|
|
1956
|
0
|
0
|
|
|
|
0
|
if ( @_ != 3 ) { |
1957
|
0
|
|
|
|
|
0
|
croak "internal error: wrong number of arguments for _add_eps"; |
1958
|
0
|
|
|
|
|
0
|
return 0; |
1959
|
|
|
|
|
|
|
} |
1960
|
|
|
|
|
|
|
|
1961
|
0
|
0
|
|
|
|
0
|
unless ($self->{usedimporteps}) { |
1962
|
0
|
|
|
|
|
0
|
$self->{psfunctions} .= <<'EOEPS'; |
1963
|
|
|
|
|
|
|
/BeginEPSF { /b4_Inc_state save def /dict_count countdictstack def |
1964
|
|
|
|
|
|
|
/op_count count 1 sub def userdict begin /showpage { } def 0 setgray |
1965
|
|
|
|
|
|
|
0 setlinecap 1 setlinewidth 0 setlinejoin 10 setmiterlimit [ ] |
1966
|
|
|
|
|
|
|
0 setdash newpath /languagelevel where { pop languagelevel 1 ne { |
1967
|
|
|
|
|
|
|
false setstrokeadjust false setoverprint } if } if } bind def |
1968
|
|
|
|
|
|
|
/EndEPSF { count op_count sub {pop} repeat countdictstack dict_count |
1969
|
|
|
|
|
|
|
sub {end} repeat b4_Inc_state restore } bind def |
1970
|
|
|
|
|
|
|
EOEPS |
1971
|
0
|
|
|
|
|
0
|
$self->{usedimporteps} = 1; |
1972
|
|
|
|
|
|
|
} |
1973
|
|
|
|
|
|
|
|
1974
|
0
|
|
|
|
|
0
|
($epsobj, $xpos, $ypos) = @_; |
1975
|
|
|
|
|
|
|
|
1976
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "BeginEPSF\n"; |
1977
|
0
|
|
|
|
|
0
|
$self->{pspages} .= $self->_uxy($xpos, $ypos) . "translate\n"; |
1978
|
0
|
|
|
|
|
0
|
$self->{pspages} .= $self->_uxy(1, 1) . "scale\n"; |
1979
|
0
|
|
|
|
|
0
|
$self->{pspages} .= $epsobj->_get_include_data($xpos, $ypos); |
1980
|
0
|
|
|
|
|
0
|
$self->{pspages} .= "EndEPSF\n"; |
1981
|
|
|
|
|
|
|
|
1982
|
0
|
|
|
|
|
0
|
return 1; |
1983
|
|
|
|
|
|
|
} |
1984
|
|
|
|
|
|
|
|
1985
|
|
|
|
|
|
|
|
1986
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1987
|
|
|
|
|
|
|
|
1988
|
|
|
|
|
|
|
sub _error { |
1989
|
21
|
|
|
21
|
|
37
|
my $self = shift; |
1990
|
21
|
|
|
|
|
29
|
my $msg = shift; |
1991
|
|
|
|
|
|
|
|
1992
|
21
|
|
|
|
|
89
|
$self->{pspages} .= "(error: $msg\n) print flush\n"; |
1993
|
|
|
|
|
|
|
} |
1994
|
|
|
|
|
|
|
|
1995
|
|
|
|
|
|
|
|
1996
|
|
|
|
|
|
|
#------------------------------------------------------------------------------- |
1997
|
|
|
|
|
|
|
|
1998
|
|
|
|
|
|
|
# Display method for debugging internal variables |
1999
|
|
|
|
|
|
|
# |
2000
|
|
|
|
|
|
|
#sub display { |
2001
|
|
|
|
|
|
|
# my $self = shift; |
2002
|
|
|
|
|
|
|
# my $i; |
2003
|
|
|
|
|
|
|
# |
2004
|
|
|
|
|
|
|
# foreach $i (keys(%{$self})) |
2005
|
|
|
|
|
|
|
# { |
2006
|
|
|
|
|
|
|
# print "$i = $self->{$i}\n"; |
2007
|
|
|
|
|
|
|
# } |
2008
|
|
|
|
|
|
|
#} |
2009
|
|
|
|
|
|
|
|
2010
|
|
|
|
|
|
|
=back |
2011
|
|
|
|
|
|
|
|
2012
|
|
|
|
|
|
|
=head1 BUGS |
2013
|
|
|
|
|
|
|
|
2014
|
|
|
|
|
|
|
Some current functionality may not be as expected, and/or may not work correctly. |
2015
|
|
|
|
|
|
|
That's the fun with using code in development! |
2016
|
|
|
|
|
|
|
|
2017
|
|
|
|
|
|
|
=head1 AUTHOR |
2018
|
|
|
|
|
|
|
|
2019
|
|
|
|
|
|
|
The PostScript::Simple module was created by Matthew Newton, with ideas |
2020
|
|
|
|
|
|
|
and suggestions from Mark Withall and many other people from around the world. |
2021
|
|
|
|
|
|
|
Thanks! |
2022
|
|
|
|
|
|
|
|
2023
|
|
|
|
|
|
|
Please see the README file in the distribution for more information about |
2024
|
|
|
|
|
|
|
contributors. |
2025
|
|
|
|
|
|
|
|
2026
|
|
|
|
|
|
|
Copyright (C) 2002-2014 Matthew C. Newton |
2027
|
|
|
|
|
|
|
|
2028
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify it under |
2029
|
|
|
|
|
|
|
the terms of the GNU General Public License as published by the Free Software |
2030
|
|
|
|
|
|
|
Foundation, version 2. |
2031
|
|
|
|
|
|
|
|
2032
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT ANY |
2033
|
|
|
|
|
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A |
2034
|
|
|
|
|
|
|
PARTICULAR PURPOSE. See the GNU General Public License for more details, |
2035
|
|
|
|
|
|
|
available at http://www.gnu.org/licenses/gpl.html. |
2036
|
|
|
|
|
|
|
|
2037
|
|
|
|
|
|
|
=head1 SEE ALSO |
2038
|
|
|
|
|
|
|
|
2039
|
|
|
|
|
|
|
L |
2040
|
|
|
|
|
|
|
|
2041
|
|
|
|
|
|
|
=cut |
2042
|
|
|
|
|
|
|
|
2043
|
|
|
|
|
|
|
1; |
2044
|
|
|
|
|
|
|
|
2045
|
|
|
|
|
|
|
# vim:foldmethod=marker: |