1 | #!/usr/bin/perl -w
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2 | #
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3 | # A component of the Realistic Book software
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4 | # from the New Zealand Digital Library Project at the
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5 | # University of Waikato, New Zealand.
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6 | #
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7 | # Copyright (C) 2007 New Zealand Digital Library Project
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8 | #
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9 | # This program is free software; you can redistribute it and/or modify
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10 | # it under the terms of the GNU General Public License as published by
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11 | # the Free Software Foundation; either version 2 of the License, or
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12 | # (at your option) any later version.
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13 | #
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14 | # This program is distributed in the hope that it will be useful,
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15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 | # GNU General Public License for more details.
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18 | #
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19 | # You should have received a copy of the GNU General Public License
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20 | # along with this program; if not, write to the Free Software
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21 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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22 | #
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23 |
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24 | #*****************************************************************
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25 | #Realistic Book application
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26 | # Converting each PDF page into a SWF file. Also produce
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27 | # the XHTML input file for the Realistic book program
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28 | #
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29 | #by Veronica Liesaputra --- 1 August 2007
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30 | #*****************************************************************/
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31 |
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32 | use warnings;
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33 | use strict;
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34 |
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35 | use File::Basename;
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36 | use File::Spec::Functions;
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37 | use File::Copy;
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38 |
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39 | BEGIN {
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40 | die "REALISTIC_BOOKS_HOME not set. Have you sourced setup.bash?\n"
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41 | unless defined $ENV{'REALISTIC_BOOKS_HOME'};
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42 | die "RBOS not set. Have you sourced setup.bash?\n"
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43 | unless defined $ENV{'RBOS'};
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44 | }
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45 |
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46 |
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47 | sub print_usage
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48 | {
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49 | my ($full_progname) = @_;
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50 |
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51 | my $progname = basename($full_progname);
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52 |
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53 | print STDERR "\nUsage: $progname pdf_filename\n";
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54 | print STDERR "or perl -S $progname pdf_filename\n\n";
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55 |
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56 | exit(-1);
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57 | }
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58 |
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59 | sub check_pdf2swf
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60 | {
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61 | my $output = `pdf2swf --version`;
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62 |
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63 | if (!defined $output || ($output !~ m/swftools/i)) {
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64 | print STDERR "Unable to find pdf2swf: $!\n";
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65 | print STDERR "Have you sourced setup.bash (Linux/MacOS)?\n";
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66 | print STDERR "Have you run setup.bat (Windows)?\n";
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67 | exit(-1);
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68 | }
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69 | }
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70 |
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71 | sub check_file
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72 | {
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73 | my ($filename) = @_;
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74 |
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75 | if (-d $filename) {
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76 | print STDERR "Error: $filename is a directory.\n";
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77 | print STDERR " Please specify the PDF file as input.\n";
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78 | exit(-1);
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79 | }
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80 |
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81 | if (!-e $filename) {
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82 | print STDERR "Error: Unable to find $filename\n";
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83 | exit(-1);
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84 | }
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85 | }
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86 |
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87 | sub copy_model_col
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88 | {
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89 | my ($folder_name) = @_;
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90 |
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91 | #--
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92 | # Copy modelcol content to new book folder
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93 | # --
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94 |
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95 | mkdir($folder_name);
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96 | my $modelcol_dir = catfile($ENV{'REALISTIC_BOOKS_HOME'},"books","modelcol");
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97 | opendir(DIR, $modelcol_dir)
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98 | || die "Cannot open directory $modelcol_dir: $!";
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99 |
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100 | my @model_files = grep { -f catfile($modelcol_dir,$_) } readdir(DIR);
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101 | closedir DIR;
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102 |
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103 | foreach my $f ( @model_files) {
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104 | my $src_filename = catfile($modelcol_dir,$f);
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105 | my $dst_filename = catfile($folder_name,$f);
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106 | copy($src_filename,$dst_filename);
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107 | }
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108 | }
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109 |
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110 | sub pdf2swf_info
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111 | {
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112 | my ($filename) = @_;
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113 |
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114 | my $cmd = "pdf2swf --info \"$filename\"";
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115 | if ($ENV{'RBOS'} =~ /^windows$/i) {
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116 | $cmd .= " 2>nul";
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117 | }
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118 | else {
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119 | $cmd .= " 2>/dev/null";
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120 | }
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121 |
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122 |
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123 | my @output_lines = split(/\n/,`$cmd`);
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124 |
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125 | my $curr_page = 0;
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126 | my $total_width = 0;
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127 | my $total_height = 0;
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128 |
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129 | my $double_check = 0;
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130 | foreach my $line (@output_lines) {
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131 | next if ($line =~ m/^$/);
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132 |
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133 | if ($line =~ m/^page=(\d+)\s+width=(\d+\.?\d*)\s+height=(\d+\.?\d*)$/) {
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134 | $curr_page = $1;
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135 | my $width = $2;
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136 | my $height = $3;
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137 | $total_width += $width;
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138 | $total_height += $height;
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139 | }
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140 | $double_check++;
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141 | }
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142 |
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143 | #my $last_line = pop(@output_lines);
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144 |
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145 | ## Watch out for trailing \n
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146 | #$last_line = pop(@output_lines) if ($last_line =~ m/^$/);
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147 |
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148 | #my ($num_pages) = ($last_line =~ m/^page=(\d+)/);
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149 | my $num_pages = $curr_page;
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150 |
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151 | if ($double_check != $num_pages) {
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152 | print STDERR "Warning: inconsistency found in page count: $double_check vs $num_pages\n";
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153 | print STDERR "Setting to $double_check\n";
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154 | $num_pages = $double_check;
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155 | }
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156 |
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157 | my $avg_width = $total_width / $num_pages;
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158 | my $avg_height = $total_height / $num_pages;
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159 |
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160 | return ($num_pages,$avg_width,$avg_height);
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161 |
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162 | }
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163 |
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164 |
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165 | sub generate_html
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166 | {
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167 | my ($full_folder_name,$folder_root,$filename) = @_;
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168 |
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169 | my ($num_pages,$width,$height) = pdf2swf_info($filename);
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170 |
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171 | print STDOUT "Total page: $num_pages\n";
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172 |
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173 | my $html_input = "<HTML>\n<title>$folder_root</title>\n<Description>\n";
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174 | $html_input .= "<!-- Please do not remove Filename and PageFolder metadata -->\n";
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175 | $html_input .= " <Metadata name=\"Filename\">$folder_root</Metadata>\n";
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176 | $html_input .= " <Metadata name=\"PageFolder\">.</Metadata>\n";
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177 | $html_input .= " <Metadata name=\"StartNumbering\">1</Metadata>\n";
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178 | $html_input .= " <Metadata name=\"pagedim\">${width}x${height}</Metadata>\n";
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179 | $html_input .= "</Description>\n";
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180 |
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181 | for (my $i=1; $i<=$num_pages; $i++) {
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182 |
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183 | my $backFile = "Page_$i.swf";
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184 | my $frontFile = "$full_folder_name";
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185 | my $output_file = catfile($frontFile,$backFile);
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186 | my $cmd = "pdf2swf -p $i -s insertstop -s zoom=100 \"$filename\" -o \"$output_file\"";
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187 | ## $cmd .= " 2>1";
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188 |
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189 | my $imgfile = `$cmd`;
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190 |
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191 | print STDOUT "creating page $i\n";
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192 |
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193 | $html_input = "$html_input<newpage filename=\"Page_$i\" />\n";
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194 | }
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195 |
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196 | $html_input = "$html_input</HTML>\n";
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197 |
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198 | return $html_input;
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199 | }
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200 |
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201 |
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202 | sub main
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203 | {
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204 | my ($argc,@argv) = @_;
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205 |
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206 | my $full_progname = $0;
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207 |
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208 | if ($argc < 0) {
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209 | print_usage($full_progname);
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210 | }
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211 |
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212 | check_pdf2swf();
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213 |
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214 | my $filename = $argv[0];
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215 | check_file($filename);
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216 |
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217 | # print STDERR "Ignore the message called RegOpenKeyEx failed\n";
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218 |
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219 | my($file_root, $fulldir, $file_ext) = fileparse($filename,qr/\.[^.]*/);
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220 |
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221 | my $full_folder_name = catfile($ENV{'REALISTIC_BOOKS_HOME'},"books",$file_root);
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222 |
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223 | copy_model_col($full_folder_name);
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224 |
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225 | my $html_input = generate_html($full_folder_name,$file_root,$filename);
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226 |
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227 | # Write out HTML file
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228 | my $html_file = catfile($full_folder_name,"pages.htm");
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229 | open (PROD, ">$html_file") || die("Error Writing to File: $html_file $!");
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230 | print STDERR "Creating $html_file\n";
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231 |
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232 | print PROD $html_input;
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233 | close (PROD) || die("Error Closing File: $html_file $!");
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234 |
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235 |
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236 | print STDOUT "Realistic book generated in $full_folder_name\n";
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237 |
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238 | }
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239 |
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240 |
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241 | &main(scalar(@ARGV),@ARGV);
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