| 1 | #!/usr/bin/perl -w
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| 2 |
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| 3 | ###########################################################################
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| 4 | #
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| 5 | # title_icon.pl
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| 6 | # A component of the Greenstone digital library software
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| 7 | # from the New Zealand Digital Library Project at the
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| 8 | # University of Waikato, New Zealand.
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| 9 | #
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| 10 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 11 | #
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| 12 | # This program is free software; you can redistribute it and/or modify
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| 13 | # it under the terms of the GNU General Public License as published by
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| 14 | # the Free Software Foundation; either version 2 of the License, or
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| 15 | # (at your option) any later version.
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| 16 | #
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| 17 | # This program is distributed in the hope that it will be useful,
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| 18 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 20 | # GNU General Public License for more details.
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| 21 | #
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| 22 | # You should have received a copy of the GNU General Public License
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| 23 | # along with this program; if not, write to the Free Software
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| 24 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 25 | #
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| 26 | ###########################################################################
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| 27 |
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| 28 | # title_icon.pl generates all the green_title type icons and
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| 29 | # collection icons for Greenstone
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| 30 |
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| 31 | BEGIN {
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| 32 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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| 33 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
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| 34 | }
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| 35 |
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| 36 | use Gimp;
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| 37 | use parsargv;
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| 38 | use util;
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| 39 |
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| 40 | # set trace level to watch functions as they are executed
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| 41 | #Gimp::set_trace(TRACE_ALL);
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| 42 | #Gimp::set_trace(TRACE_CALL);
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| 43 |
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| 44 | my $gsdl_green = "#96c19b";
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| 45 | my $black = "#000000";
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| 46 |
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| 47 |
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| 48 | my ($cfg_file, $imagefile, $width, $height, $imageheight, $stripecolor, $stripewidth,
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| 49 | $stripe_alignment, $i_transparency, $text, $text_alignment, $filename, $textspace_x,
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| 50 | $textspace_y, $bgcolor, $fontcolor, $fontsize, $minfontsize, $fontname,
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| 51 | $fontweight, $fontslant, $fontwidth, $fontspacing, $image_dir);
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| 52 |
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| 53 | sub print_usage {
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| 54 | print STDERR "\n usage: $0 [options] macrofile\n\n";
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| 55 | print STDERR " options:\n";
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| 56 | print STDERR " -cfg_file file configuration file containing one or more\n";
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| 57 | print STDERR " sets of the following options - use to create\n";
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| 58 | print STDERR " batches of images\n";
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| 59 | print STDERR " -image_dir directory directory to create images in [`pwd`]\n";
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| 60 | print STDERR " this should be full path to existing directory\n";
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| 61 | print STDERR " -imagefile filename of image to embed within new icon\n";
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| 62 | print STDERR " -width number width of icon [150]\n";
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| 63 | print STDERR " -height number height of icon [44]\n";
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| 64 | print STDERR " -imageheight number this is the height of the image if the image contains\n";
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| 65 | print STDERR " an image (like collection icons) [110]\n";
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| 66 | print STDERR " -stripecolor hex_value color of vertical stripe [$gsdl_green]\n";
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| 67 | print STDERR " -stripewidth width of vertical stripe [40]\n";
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| 68 | print STDERR " -stripe_alignment alignment of vertical stripe (left or right) [left]\n";
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| 69 | print STDERR " -i_transparency number transparency of image within icon (0 > transparent > 100) [60]\n";
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| 70 | print STDERR " -text string image text\n";
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| 71 | print STDERR " -text_alignment alignment of text (left or right) [left]\n";
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| 72 | print STDERR " -filename string filename of resulting image\n";
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| 73 | print STDERR " -textspace_x number space in pixels between left/right edge of image and\n";
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| 74 | print STDERR " left/right edge of text [3]\n";
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| 75 | print STDERR " -textspace_y number space in pixels between top of image and top of\n";
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| 76 | print STDERR " text [3]\n";
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| 77 | print STDERR " -bgcolor hex_value background color of icon [$gsdl_green]\n";
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| 78 | print STDERR " -fontcolor hex_value text color [$black]\n";
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| 79 | print STDERR " -fontsize number font point size [17]\n";
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| 80 | print STDERR " -minfontsize number minimum point size font will be reduced to fit image [10]\n";
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| 81 | print STDERR " -fontname string [lucida]\n";
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| 82 | print STDERR " -fontweight string [medium]\n";
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| 83 | print STDERR " -fontslant [r]\n";
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| 84 | print STDERR " -fontwidth [*]\n";
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| 85 | print STDERR " -fontspacing [*]\n\n";
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| 86 | }
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| 87 |
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| 88 | sub reset_options {
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| 89 | $image_dir = "./";
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| 90 | $imagefile = "";
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| 91 | $width = 150;
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| 92 | $height = 44;
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| 93 | $imageheight = 110;
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| 94 | $stripecolor = $gsdl_green;
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| 95 | $stripewidth = 40;
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| 96 | $stripe_alignment = "left";
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| 97 | $i_transparency = 60;
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| 98 | $text = "";
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| 99 | $text_alignment = "left";
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| 100 | $filename = "";
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| 101 | $textspace_x = 3;
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| 102 | $textspace_y = 3;
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| 103 | $bgcolor = $gsdl_green;
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| 104 | $fontcolor = $black;
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| 105 | $fontsize = 17;
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| 106 | $minfontsize = 10;
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| 107 | $fontname = "lucida";
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| 108 | $fontweight = "medium";
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| 109 | $fontslant = "r";
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| 110 | $fontwidth = "*";
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| 111 | $fontspacing = "*";
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| 112 | }
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| 113 |
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| 114 | sub gsdl_title_icon {
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| 115 |
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| 116 | if (!parsargv::parse(\@ARGV,
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| 117 | 'cfg_file/.*/', \$cfg_file,
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| 118 | 'image_dir/.*/./', \$image_dir,
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| 119 | 'imagefile/.*/', \$imagefile,
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| 120 | 'width/^\d+$/150', \$width,
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| 121 | 'height/^\d+$/44', \$height,
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| 122 | 'imageheight/^\d+$/110', \$imageheight,
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| 123 | "stripecolor/#[0-9A-Fa-f]{6}/$gsdl_green", \$stripecolor,
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| 124 | 'stripewidth/^\d+$/40', \$stripewidth,
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| 125 | 'stripe_alignment/^(left|right)$/left', \$stripe_alignment,
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| 126 | 'i_transparency/^\d+$/60', \$i_transparency,
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| 127 | 'text/.*/', \$text,
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| 128 | 'text_alignment/^(left|right)$/left', \$text_alignment,
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| 129 | 'filename/.*', \$filename,
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| 130 | 'textspace_x/^\d+$/3', \$textspace_x,
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| 131 | 'textspace_y/^\d+$/3', \$textspace_y,
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| 132 | "bgcolor/#[0-9A-Fa-f]{6}/$gsdl_green", \$bgcolor,
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| 133 | "fontcolor/#[0-9A-Fa-f]{6}/$black", \$fontcolor,
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| 134 | 'fontsize/^\d+$/17', \$fontsize,
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| 135 | 'minfontsize/^\d+$/10', \$minfontsize,
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| 136 | 'fontname/.*/lucida', \$fontname,
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| 137 | 'fontweight/.*/medium', \$fontweight,
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| 138 | 'fontslant/.*/r', \$fontslant,
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| 139 | 'fontwidth/.*/*', \$fontwidth,
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| 140 | 'fontspacing/.*/*', \$fontspacing)) {
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| 141 | &print_usage();
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| 142 | die "title_icon.pl: incorrect options\n";
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| 143 | }
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| 144 |
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| 145 | # will create wherever gimp was started up from if we don't do this
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| 146 | if ($image_dir eq "./") {
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| 147 | $image_dir = `pwd`;
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| 148 | chomp $image_dir;
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| 149 | }
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| 150 |
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| 151 | if ($cfg_file =~ /\w/) {
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| 152 |
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| 153 | open (CONF, $cfg_file) || die "couldn't open cfg_file $cfg_file\n";
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| 154 | while (1) {
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| 155 |
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| 156 | &reset_options ();
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| 157 |
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| 158 | # read image configuration entry
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| 159 | my $status = &read_config_entry (CONF);
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| 160 | if ($filename !~ /\w/) {
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| 161 | if ($status) {last;}
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| 162 | else {next;}
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| 163 | }
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| 164 |
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| 165 | &produce_image ();
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| 166 | if ($status) {last;}
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| 167 | }
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| 168 |
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| 169 | close CONF;
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| 170 |
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| 171 | } else {
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| 172 |
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| 173 | &produce_image ();
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| 174 |
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | sub produce_image {
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| 179 |
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| 180 | my $use_image = 0;
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| 181 | if ($imagefile =~ /\w/) {
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| 182 | if (!-r $imagefile) {
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| 183 | print STDERR "WARNING (title_icon.pl): imagefile '$imagefile cannot be ";
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| 184 | print STDERR "read - $filename will be created without the use of an image file\n";
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| 185 | } else {
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| 186 | $use_image = 1;
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| 187 | $height = $imageheight;
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | # create the image
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| 192 | my $image = gimp_image_new ($width, $height, RGB_IMAGE);
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| 193 |
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| 194 | # background layer
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| 195 | my $backlayer = gimp_layer_new ($image, $width, $height, RGB_IMAGE,
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| 196 | "BGLayer", 100, NORMAL_MODE);
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| 197 |
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| 198 | # add the background layer
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| 199 | gimp_image_add_layer ($image, $backlayer, 0);
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| 200 |
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| 201 | # set colour of stripe
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| 202 | gimp_palette_set_foreground ($stripecolor);
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| 203 |
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| 204 | # clear the background
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| 205 | gimp_selection_all ($image);
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| 206 | gimp_edit_clear ($image, $backlayer);
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| 207 | gimp_selection_none ($image);
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| 208 |
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| 209 | # fill in stripe
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| 210 | if ($stripe_alignment eq "left") {
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| 211 | gimp_rect_select ($image, 0, 0, $stripewidth, $height, 0, 0, 0);
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| 212 | } else {
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| 213 | gimp_rect_select ($image, $width-$stripewidth, 0, $stripewidth, $height, 0, 0, 0);
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| 214 | }
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| 215 | gimp_bucket_fill ($image, $backlayer, FG_BUCKET_FILL, NORMAL_MODE, 100, 0, 1, 0, 0);
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| 216 | gimp_selection_none ($image);
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| 217 |
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| 218 | # get image file (image goes on opposite side to stripe)
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| 219 | if ($use_image) {
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| 220 | my $rimage = gimp_file_load (RUN_NONINTERACTIVE, $imagefile, $imagefile);
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| 221 | my $rdraw = gimp_image_active_drawable ($rimage);
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| 222 | gimp_scale ($rimage, $rdraw, 1, 0, 0, $width-$stripewidth, $height);
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| 223 | gimp_edit_copy ($rimage, $rdraw);
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| 224 |
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| 225 | my $imagelayer = gimp_layer_new ($image, $width, $height, RGB_IMAGE,
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| 226 | "ImageLayer", $i_transparency, NORMAL_MODE);
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| 227 |
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| 228 | gimp_image_add_layer ($image, $imagelayer, 0);
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| 229 |
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| 230 | # clear the new layer
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| 231 | gimp_selection_all ($image);
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| 232 | gimp_edit_clear ($image, $imagelayer);
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| 233 | gimp_selection_none ($image);
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| 234 |
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| 235 | my $flayer = gimp_edit_paste ($image, $imagelayer, 1);
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| 236 | if ($stripe_alignment eq "left") {
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| 237 | gimp_layer_set_offsets($flayer, $stripewidth, 0);
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| 238 | gimp_layer_set_offsets($imagelayer, $stripewidth, 0);
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| 239 | } else {
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| 240 | gimp_layer_set_offsets($flayer, 0, 0);
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| 241 | gimp_layer_set_offsets($imagelayer, 0, 0);
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| 242 | }
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| 243 | }
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| 244 |
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| 245 | # set colour of text
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| 246 | gimp_palette_set_foreground ($fontcolor);
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| 247 |
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| 248 | # set the text if there is any
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| 249 | my ($textlayer, $textheight, $textwidth);
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| 250 | my $fsize = $fontsize;
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| 251 | if (length($text)) {
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| 252 | $text =~ s/\\n/\n/gi;
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| 253 | while (1) {
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| 254 | $textlayer = gimp_text ($image, $backlayer, 0, 0, $text, 0, 1, $fsize,
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| 255 | PIXELS, "*", $fontname, $fontweight, $fontslant,
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| 256 | $fontwidth, $fontspacing);
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| 257 |
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| 258 | # check that text fits within image
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| 259 | $textwidth = gimp_drawable_width($textlayer);
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| 260 | $textheight = gimp_drawable_height($textlayer);
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| 261 | if ((($textwidth + $textspace_x) > $width) ||
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| 262 | (($textheight + $textspace_y) > $height)) {
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| 263 | if ($fsize < $minfontsize) {
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| 264 | die "Error (title_icon.pl): text '$text' doesn't fit on ${width}x${height} image " .
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| 265 | "(minimum font size tried: $minfontsize\n";
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| 266 | } else {
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| 267 | gimp_selection_all ($image);
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| 268 | gimp_edit_clear ($image, $textlayer);
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| 269 | gimp_selection_none ($image);
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| 270 | $fsize --;
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| 271 | print STDERR "WARNING (title_icon.pl): '$text' doesn't fit: reducing font size to $fsize\n";
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| 272 | }
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| 273 | } else {
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| 274 | last;
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| 275 | }
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| 276 | }
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| 277 |
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| 278 | # align text
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| 279 | if ($text_alignment eq "left") {
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| 280 | gimp_layer_set_offsets ($textlayer, $textspace_x, $textspace_y);
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| 281 | } else {
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| 282 | gimp_layer_set_offsets ($textlayer, ($width-$textwidth)-$textspace_x, $textspace_y);
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| 283 | }
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| 284 | }
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| 285 |
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| 286 | # flatten the image
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| 287 | my $finishedlayer = gimp_image_flatten ($image);
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| 288 |
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| 289 | if ($filename =~ /\.gif$/i) {
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| 290 | # make indexed colour (may need to do this for
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| 291 | # other formats as well as gif)
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| 292 | gimp_convert_indexed ($image, 0, 256);
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| 293 | }
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| 294 |
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| 295 | # save image
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| 296 | my $filename = &util::filename_cat ($image_dir, $filename);
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| 297 | if ($filename =~ /\.jpe?g$/i) {
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| 298 | # gimp_file_save doesn't appear to work properly for jpegs
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| 299 | file_jpeg_save (RUN_NONINTERACTIVE, $image, $finishedlayer,
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| 300 | $filename, $filename, 0.8, 0, 1);
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| 301 | } else {
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| 302 | gimp_file_save (RUN_NONINTERACTIVE, $image, $finishedlayer,
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| 303 | $filename, $filename);
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| 304 | }
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| 305 | }
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| 306 |
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| 307 | # returns 1 if this is the last entry,
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| 308 | sub read_config_entry {
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| 309 | my ($handle) = @_;
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| 310 |
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| 311 | my $line = "";
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| 312 | while (defined ($line = <$handle>)) {
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| 313 | next unless $line =~ /\w/;
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| 314 | my @line = ();
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| 315 | if ($line =~ /^\-+/) {return 0;}
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| 316 | $line =~ s/^\#.*$//; # remove comments
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| 317 | $line =~ s/\cM|\cJ//g; # remove end-of-line characters
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| 318 | $line =~ s/^\s+//; # remove initial white space
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| 319 | while ($line =~ s/\s*(\"[^\"]*\"|\'[^\']*\'|\S+)\s*//) {
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| 320 | if (defined $1) {
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| 321 | # remove any enclosing quotes
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| 322 | my $entry = $1;
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| 323 | $entry =~ s/^([\"\'])(.*)\1$/$2/;
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| 324 |
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| 325 | # substitute any environment variables
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| 326 | $entry =~ s/\$(\w+)/$ENV{$1}/g;
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| 327 | $entry =~ s/\$\{(\w+)\}/$ENV{$1}/g;
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| 328 |
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| 329 | push (@line, $entry);
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| 330 | } else {
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| 331 | push (@line, "");
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| 332 | }
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| 333 | }
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| 334 | if (scalar (@line) == 2 && defined ${$line[0]}) {
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| 335 | ${$line[0]} = $line[1];
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| 336 | }
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| 337 | }
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| 338 | return 1;
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| 339 | }
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| 340 |
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| 341 | sub query {
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| 342 |
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| 343 | gimp_install_procedure("gsdl_title_icon", "create title icons for gsdl",
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| 344 | "", "Stefan Boddie", "Stefan Boddie", "2000-03-10",
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| 345 | "<Toolbox>/Xtns/gsdl_title_icon", "*", &PROC_EXTENSION,
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| 346 | [[PARAM_INT32, "run_mode", "Interactive, [non-interactive]"]], []);
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| 347 | }
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| 348 |
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| 349 | sub net {
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| 350 | gsdl_title_icon;
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| 351 | }
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| 352 |
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| 353 | exit main;
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| 354 |
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