1 | ###########################################################################
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2 | #
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3 | # ImageConverter - helper plugin that does image conversion using ImageMagick
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4 | #
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5 | # A component of the Greenstone digital library software
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6 | # from the New Zealand Digital Library Project at the
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7 | # University of Waikato, New Zealand.
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8 | #
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9 | # Copyright (C) 2008 New Zealand Digital Library Project
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10 | #
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11 | # This program is free software; you can redistribute it and/or modify
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12 | # it under the terms of the GNU General Public License as published by
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13 | # the Free Software Foundation; either version 2 of the License, or
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14 | # (at your option) any later version.
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15 | #
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16 | # This program is distributed in the hope that it will be useful,
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17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | # GNU General Public License for more details.
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20 | #
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21 | # You should have received a copy of the GNU General Public License
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22 | # along with this program; if not, write to the Free Software
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23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | #
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25 | ###########################################################################
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26 | package ImageConverter;
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27 |
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28 | use BaseMediaConverter;
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29 |
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30 |
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31 | use strict;
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32 | no strict 'refs'; # allow filehandles to be variables and viceversa
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33 |
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34 | use util;
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35 | use FileUtils;
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36 | use gsprintf 'gsprintf';
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37 |
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38 | BEGIN {
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39 | @ImageConverter::ISA = ('BaseMediaConverter');
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40 | }
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41 |
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42 | # When used with multiple builder+buildproc, plugins loaded multiple times
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43 | # => use this 'our' var to ensure only see the warning about ImageMagick once
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44 | our $given_image_conversion_warning = 0;
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45 |
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46 | my $arguments = [
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47 | { 'name' => "create_thumbnail",
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48 | 'desc' => "{ImageConverter.create_thumbnail}",
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49 | 'type' => "enum",
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50 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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51 | {'name' => "false", 'desc' => "{common.false}"}],
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52 | 'deft' => "true",
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53 | 'reqd' => "no" },
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54 | { 'name' => "thumbnailsize",
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55 | 'desc' => "{ImageConverter.thumbnailsize}",
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56 | 'type' => "int",
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57 | 'deft' => "100",
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58 | 'range' => "1,",
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59 | 'reqd' => "no" },
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60 | { 'name' => "thumbnailtype",
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61 | 'desc' => "{ImageConverter.thumbnailtype}",
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62 | 'type' => "string",
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63 | 'deft' => "gif",
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64 | 'reqd' => "no" },
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65 | { 'name' => "noscaleup",
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66 | 'desc' => "{ImageConverter.noscaleup}",
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67 | 'type' => "flag",
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68 | 'reqd' => "no" },
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69 | { 'name' => "create_screenview",
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70 | 'desc' => "{ImageConverter.create_screenview}",
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71 | 'type' => "enum",
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72 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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73 | {'name' => "false", 'desc' => "{common.false}"}],
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74 | 'deft' => "true",
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75 | 'reqd' => "no" },
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76 | { 'name' => "screenviewsize",
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77 | 'desc' => "{ImageConverter.screenviewsize}",
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78 | 'type' => "int",
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79 | 'deft' => "500",
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80 | 'range' => "1,",
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81 | 'reqd' => "no" },
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82 | { 'name' => "screenviewtype",
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83 | 'desc' => "{ImageConverter.screenviewtype}",
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84 | 'type' => "string",
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85 | 'deft' => "jpg",
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86 | 'reqd' => "no" },
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87 | { 'name' => "converttotype",
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88 | 'desc' => "{ImageConverter.converttotype}",
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89 | 'type' => "string",
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90 | 'deft' => "",
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91 | 'reqd' => "no" },
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92 | { 'name' => "minimumsize",
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93 | 'desc' => "{ImageConverter.minimumsize}",
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94 | 'type' => "int",
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95 | 'deft' => "100",
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96 | 'range' => "1,",
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97 | 'reqd' => "no" },
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98 |
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99 | { 'name' => "apply_aspectpad",
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100 | 'desc' => "{ImageConverter.apply_aspectpad}",
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101 | 'type' => "enum",
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102 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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103 | {'name' => "false", 'desc' => "{common.false}"}],
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104 | 'deft' => "false",
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105 | 'reqd' => "no" },
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106 | { 'name' => "aspectpad_ratio",
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107 | 'desc' => "{ImageConverter.aspectpad_ratio}",
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108 | 'type' => "string",
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109 | 'deft' => "2",
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110 | 'range' => "1,",
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111 | 'reqd' => "no" },
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112 | { 'name' => "aspectpad_mode",
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113 | 'desc' => "{ImageConverter.aspectpad_mode}",
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114 | 'type' => "enum",
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115 | 'list' => [{'name' => "al", 'desc' => "{aspectpad.al}"},
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116 | {'name' => "ap", 'desc' => "{aspectpad.ap}"},
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117 | {'name' => "l", 'desc' => "{aspectpad.l}"},
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118 | {'name' => "p", 'desc' => "{aspectpad.p}"}],
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119 | 'deft' => "al",
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120 | 'reqd' => "no" },
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121 | { 'name' => "aspectpad_colour",
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122 | 'desc' => "{ImageConverter.aspectpad_colour}",
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123 | 'type' => "string",
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124 | 'deft' => "transparent",
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125 | 'reqd' => "no" },
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126 | { 'name' => "aspectpad_tolerance",
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127 | 'desc' => "{ImageConverter.aspectpad_tolerance}",
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128 | 'type' => "string",
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129 | 'deft' => "0.0",
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130 | 'range' => "0,",
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131 | 'reqd' => "no" },
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132 |
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133 |
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134 | ];
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135 |
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136 | my $options = { 'name' => "ImageConverter",
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137 | 'desc' => "{ImageConverter.desc}",
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138 | 'abstract' => "yes",
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139 | 'inherits' => "yes",
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140 | 'args' => $arguments };
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141 |
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142 | sub new {
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143 | my ($class) = shift (@_);
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144 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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145 | push(@$pluginlist, $class);
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146 |
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147 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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148 | push(@{$hashArgOptLists->{"OptList"}},$options);
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149 |
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150 | my $self = new BaseMediaConverter($pluginlist, $inputargs, $hashArgOptLists, 1);
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151 |
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152 |
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153 | return bless $self, $class;
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154 |
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155 | }
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156 |
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157 | # needs to be called after BasePlugin init, so that outhandle is set up.
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158 | sub init {
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159 | my $self = shift(@_);
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160 |
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161 | $self->{'tmp_file_paths'} = ();
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162 |
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163 | # Check that ImageMagick is installed and available on the path
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164 | my $image_conversion_available = 1;
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165 | my $no_image_conversion_reason = "";
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166 | # None of this works very well on Windows 95/98...
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167 | if ($ENV{'GSDLOS'} eq "windows" && !Win32::IsWinNT()) {
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168 | $image_conversion_available = 0;
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169 | $no_image_conversion_reason = "win95notsupported";
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170 | } else {
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171 | my $imagick_cmd = "\"".&util::get_perl_exec()."\" -S gs-magick.pl";
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172 | my $result = `$imagick_cmd identify -help 2>&1`;
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173 | my $return_value = $?;
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174 |
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175 | # When testing against non-zero return_value ($?), need to shift by 8
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176 | # and convert it to its signed value. Linux returns -1 and Windows returns
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177 | # 256 for "program not found". The signed equivalents are -1 and 1 respectively.
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178 | $return_value >>= 8;
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179 | $return_value = (($return_value & 0x80) ? -(0x100 - ($return_value & 0xFF)) : $return_value);
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180 |
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181 | if ( ($ENV{'GSDLOS'} eq "windows" && $return_value == 1) || $return_value == -1) { # Linux and Windows return different values for "program not found"
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182 | $image_conversion_available = 0;
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183 | $no_image_conversion_reason = "imagemagicknotinstalled";
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184 | }
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185 | }
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186 | $self->{'image_conversion_available'} = $image_conversion_available;
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187 | $self->{'no_image_conversion_reason'} = $no_image_conversion_reason;
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188 |
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189 | if ($self->{'image_conversion_available'} == 0) {
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190 | if (!$given_image_conversion_warning) {
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191 | my $outhandle = $self->{'outhandle'};
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192 | &gsprintf($outhandle, "ImageConverter: {ImageConverter.noconversionavailable} ({ImageConverter.".$self->{'no_image_conversion_reason'}."})\n");
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193 | $given_image_conversion_warning = 1;
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194 | }
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195 | }
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196 |
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197 | }
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198 |
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199 |
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200 | # convert image to new type if converttotype is set
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201 | # generate thumbnails if required
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202 | # generate screenview if required
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203 | # discover image metadata
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204 | # filename_no_path must be in utf8 and url-encoded
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205 | sub generate_images {
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206 | my $self = shift(@_);
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207 | my ($filename_full_path, $filename_encoded_full_path, $doc_obj, $section, $filename_encoding) = @_;
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208 |
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209 | my ($unused_fefp,$filename_encoded_no_path)
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210 | = &util::get_full_filenames("",$filename_encoded_full_path);
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211 |
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212 | # The following is potentially very muddled thinking (but currently seems to work)
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213 | # generate_images currently called from ImagePlugin and PagedImagePlugin
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214 | my $filename_no_path = $filename_encoded_no_path;
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215 |
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216 | # check image magick status
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217 | return 0 if $self->{'image_conversion_available'} == 0;
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218 |
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219 | # check the filenames
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220 | return 0 if ($filename_no_path eq "" || !-f $filename_full_path);
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221 |
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222 | if ($self->{'enable_cache'}) {
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223 | $self->init_cache_for_file($filename_full_path);
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224 | }
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225 | if ($self->{'store_file_paths'}) {
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226 | $self->{'orig_file'} = "";
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227 | $self->{'thumb_file'} = "";
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228 | $self->{'screen_file'} = "";
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229 | }
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230 | my $verbosity = $self->{'verbosity'};
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231 | my $outhandle = $self->{'outhandle'};
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232 |
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233 | # check the size of the image against minimum size if specified
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234 | my $minimumsize = $self->{'minimumsize'};
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235 | if (defined $minimumsize && (&FileUtils::fileSize($filename_full_path) < $minimumsize)) {
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236 | print $outhandle "ImageConverter: \"$filename_full_path\" too small, skipping\n"
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237 | if ($verbosity > 1);
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238 | return 0; # or is there a better return value??
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239 | }
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240 |
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241 | my $filehead = $filename_no_path;
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242 | $filehead =~ s/\.([^\.]*)$//; # filename with no extension
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243 | my $assocfilemeta = "[assocfilepath]";
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244 | if ($section ne $doc_obj->get_top_section()) {
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245 | $assocfilemeta = "[parent(Top):assocfilepath]";
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246 | }
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247 |
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248 | # The images that will get generated may contain percent signs in their src filenames
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249 | # Encode those percent signs themselves so that urls to the imgs refer to them correctly
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250 | my $url_to_filehead = &unicode::filename_to_url($filehead);
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251 | my $url_to_filename_no_path = &unicode::filename_to_url($filename_no_path);
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252 |
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253 | my $type = "unknown";
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254 |
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255 | # Convert the image to a new type (if required).
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256 | my $converttotype = $self->{'converttotype'};
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257 |
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258 | if ($converttotype ne "" && $filename_full_path !~ m/$converttotype$/) {
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259 | # # $doc_obj->add_utf8_metadata($section, "Image", $utf8_filename_meta);
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260 |
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261 | my ($result, $converted_filename_full_path)
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262 | = $self->convert($filename_full_path, $converttotype, "", "CONVERTTYPE");
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263 |
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264 | $type = $converttotype;
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265 | $filename_full_path = $converted_filename_full_path;
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266 | $filename_no_path = "$filehead.$type";
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267 | $url_to_filename_no_path = "$url_to_filehead.$type";
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268 | if ($self->{'store_file_paths'}) {
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269 | $self->{'orig_file'} = $converted_filename_full_path;
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270 | }
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271 | }
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272 |
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273 | # Apply aspect padding (if required).
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274 | my $apply_aspectpad = $self->{'apply_aspectpad'};
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275 |
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276 | if ($apply_aspectpad eq "true") {
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277 | my $aspectpad_ratio = $self->{'aspectpad_ratio'};
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278 | my $aspectpad_mode = $self->{'aspectpad_mode'};
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279 | my $aspectpad_colour = $self->{'aspectpad_colour'};
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280 | my $aspectpad_tolerance = $self->{'aspectpad_tolerance'};
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281 |
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282 | ($type) = ($filename_full_path =~ m/\.(.*?)$/);
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283 | ##$type = lc($type);
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284 |
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285 | my ($result, $aspectpad_filename_full_path)
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286 | = $self->aspectpad($filename_full_path, $type, $aspectpad_ratio, $aspectpad_mode,
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287 | $aspectpad_colour, $aspectpad_tolerance, "", "ASPECTPAD");
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288 |
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289 | $filename_full_path = $aspectpad_filename_full_path;
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290 |
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291 | if ($self->{'store_file_paths'}) {
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292 | $self->{'orig_file'} = $aspectpad_filename_full_path;
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293 | }
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294 | }
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295 |
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296 |
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297 |
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298 | # add Image metadata
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299 | $doc_obj->add_utf8_metadata($section, "Image", $url_to_filename_no_path); # url to generated image
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300 |
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301 | # here we overwrite the original with the potentially converted one
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302 | # $doc_obj->set_utf8_metadata_element($section, "Source", &unicode::url_decode($filename_no_path)); # displayname of generated image
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303 | # $doc_obj->set_utf8_metadata_element($section, "SourceFile", $url_to_filename_no_path); # displayname of generated image
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304 |
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305 | # $self->set_Source_metadata($doc_obj,$url_to_filename_no_path,undef);
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306 |
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307 | my $raw_filename_full_path = &unicode::url_decode($filename_encoded_full_path);
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308 | $self->set_Source_metadata($doc_obj,$raw_filename_full_path,
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309 | $filename_encoding, $section);
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310 |
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311 |
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312 | # use identify to get info about the (possibly converted) image
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313 | my ($image_type, $image_width, $image_height, $image_size, $size_str)
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314 | = &identify($filename_full_path, $outhandle, $verbosity);
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315 |
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316 | if ($image_type ne " ") {
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317 | $type = $self->correct_mime_type($image_type);
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318 | }
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319 |
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320 | #overwrite the ones added in BasePlugin
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321 | $doc_obj->set_metadata_element ($section, "FileFormat", $type);
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322 | my $sys_file_size = &FileUtils::fileSize($filename_full_path);
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323 | $doc_obj->set_metadata_element ($section, "FileSize", $sys_file_size); #$image_size);
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324 |
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325 | $doc_obj->add_metadata ($section, "ImageType", $image_type);
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326 | $doc_obj->add_metadata ($section, "ImageWidth", $image_width);
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327 | $doc_obj->add_metadata ($section, "ImageHeight", $image_height);
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328 | $doc_obj->add_metadata ($section, "ImageSize", $size_str);
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329 |
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330 | if ((defined $self->{'MaxImageWidth'})
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331 | && ($image_width > $self->{'MaxImageWidth'})) {
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332 | $self->{'MaxImageWidth'} = $image_width;
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333 | }
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334 | if ((defined $self->{'MaxImageHeight'})
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335 | && ($image_height > $self->{'MaxImageHeight'})) {
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336 | $self->{'MaxImageHeight'} = $image_height;
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337 | }
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338 |
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339 | # srclink_file is now deprecated because of the "_" in the metadataname. Use srclinkFile
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340 | $doc_obj->add_metadata ($section, "srclink_file", $url_to_filename_no_path);
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341 | $doc_obj->add_metadata ($section, "srclinkFile", $url_to_filename_no_path);
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342 | $doc_obj->add_metadata ($section, "srcicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[srclinkFile]\" width=\"[ImageWidth]\" height=\"[ImageHeight]\">");
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343 |
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344 | # Add the image as an associated file
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345 | $doc_obj->associate_file($filename_full_path, $filename_no_path, "image/$type", $section);
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346 |
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347 | if ($self->{'create_thumbnail'} eq "true") {
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348 | $self->create_thumbnail($filename_full_path, $filehead, $doc_obj, $section, $assocfilemeta, $url_to_filehead);
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349 | }
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350 | if ($self->{'create_screenview'} eq "true") {
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351 | $self->create_screenview($filename_full_path, $filehead, $doc_obj, $section, $assocfilemeta, $url_to_filehead, $image_width, $image_height);
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352 | }
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353 |
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354 | return 1;
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355 | }
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356 |
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357 | sub create_thumbnail {
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358 | my $self = shift(@_);
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359 | my ($original_file, $filehead, $doc_obj, $section, $assocfilemeta, $url_to_filehead) = @_;
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360 | $url_to_filehead = $filehead unless defined $url_to_filehead;
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361 |
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362 | my $thumbnailsize = $self->{'thumbnailsize'};
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363 | my $thumbnailtype = $self->correct_mime_type($self->{'thumbnailtype'});
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364 |
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365 | # Generate the thumbnail with convert
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366 | my ($result,$thumbnailfile)
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367 | = $self->convert($original_file, $thumbnailtype, "-geometry $thumbnailsize" . "x$thumbnailsize", "THUMB");
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368 |
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369 | # Add the thumbnail as an associated file ...
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370 | if (-e "$thumbnailfile") {
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371 | $doc_obj->associate_file("$thumbnailfile", $filehead."_thumb.$thumbnailtype",
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372 | "image/$thumbnailtype",$section); # name of generated image
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373 | $doc_obj->add_metadata ($section, "ThumbType", $thumbnailtype);
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374 | $doc_obj->add_utf8_metadata ($section, "Thumb", $url_to_filehead."_thumb.$thumbnailtype"); # url to generated image
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375 |
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376 | $doc_obj->add_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Thumb]\" alt=\"[Thumb]\" width=\"[ThumbWidth]\" height=\"[ThumbHeight]\">");
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377 |
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378 |
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379 | # Extract Thumbnail metadata from convert output
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380 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
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381 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
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382 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
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383 | }
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384 | if ($self->{'store_file_paths'}) {
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385 | $self->{'thumb_file'} = $thumbnailfile;
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386 | }
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387 |
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388 | } else {
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389 | my $outhandle = $self->{'outhandle'};
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390 | print $outhandle "Couldn't find thumbnail $thumbnailfile\n";
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391 |
|
---|
392 | }
|
---|
393 | }
|
---|
394 |
|
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395 | sub create_screenview {
|
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396 |
|
---|
397 | my $self = shift(@_);
|
---|
398 | my ($original_file, $filehead, $doc_obj, $section, $assocfilemeta, $url_to_filehead, $image_width, $image_height) = @_;
|
---|
399 | $url_to_filehead = $filehead unless defined $url_to_filehead;
|
---|
400 |
|
---|
401 | my $screenviewsize = $self->{'screenviewsize'};
|
---|
402 | my $screenviewtype = $self->correct_mime_type($self->{'screenviewtype'});
|
---|
403 |
|
---|
404 | # Scale the image, unless the original image is smaller than the screenview size and -noscaleup is set
|
---|
405 | my $scale_option = "-geometry $screenviewsize" . "x$screenviewsize";
|
---|
406 | if ($self->{'noscaleup'} && $image_width < $screenviewsize && $image_height < $screenviewsize)
|
---|
407 | {
|
---|
408 | $scale_option = "";
|
---|
409 | }
|
---|
410 |
|
---|
411 | # make the screenview image
|
---|
412 | my ($result,$screenviewfilename)
|
---|
413 | = $self->convert($original_file, $screenviewtype, $scale_option, "SCREEN");
|
---|
414 |
|
---|
415 | #add the screenview as an associated file ...
|
---|
416 | if (-e "$screenviewfilename") {
|
---|
417 | $doc_obj->associate_file("$screenviewfilename", $filehead."_screen.$screenviewtype", "image/$screenviewtype",$section); # name of generated image
|
---|
418 | $doc_obj->add_metadata ($section, "ScreenType", $screenviewtype);
|
---|
419 | $doc_obj->add_utf8_metadata ($section, "Screen", $url_to_filehead."_screen.$screenviewtype"); # url to generated image
|
---|
420 |
|
---|
421 | $doc_obj->add_metadata ($section, "screenicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
|
---|
422 |
|
---|
423 | # get screenview dimensions, size and type
|
---|
424 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
---|
425 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
---|
426 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
---|
427 | } elsif ($result =~ m/([0-9]+)x([0-9]+)/) {
|
---|
428 | #if the image hasn't changed size, the previous regex doesn't match
|
---|
429 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
---|
430 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
---|
431 | }
|
---|
432 |
|
---|
433 | if ($self->{'store_file_paths'}) {
|
---|
434 | $self->{'screen_file'} = $screenviewfilename;
|
---|
435 | }
|
---|
436 |
|
---|
437 | } else {
|
---|
438 | my $outhandle = $self->{'outhandle'};
|
---|
439 | print $outhandle "Couldn't find screenview file $screenviewfilename\n";
|
---|
440 |
|
---|
441 | }
|
---|
442 |
|
---|
443 | }
|
---|
444 |
|
---|
445 |
|
---|
446 |
|
---|
447 | sub convert {
|
---|
448 | my $self = shift(@_);
|
---|
449 | my $source_file_path = shift(@_);
|
---|
450 | my $target_file_type = shift(@_);
|
---|
451 | my $convert_options = shift(@_) || "";
|
---|
452 | my $convert_id = shift(@_) || "";
|
---|
453 | my $cache_mode = shift(@_) || "";
|
---|
454 |
|
---|
455 | my $outhandle = $self->{'outhandle'};
|
---|
456 | my $verbosity = $self->{'verbosity'};
|
---|
457 |
|
---|
458 | my $source_file_no_path = &File::Basename::basename($source_file_path);
|
---|
459 |
|
---|
460 | # Determine the full name and path of the output file
|
---|
461 | my $target_file_path;
|
---|
462 | if ($self->{'enable_cache'}) {
|
---|
463 | my $cached_image_dir = $self->{'cached_dir'};
|
---|
464 | my $image_root = $self->{'cached_file_root'};
|
---|
465 | $image_root .= "_$convert_id" if ($convert_id ne "");
|
---|
466 | my $image_file = "$image_root.$target_file_type";
|
---|
467 | $target_file_path = &FileUtils::filenameConcatenate($cached_image_dir,$image_file);
|
---|
468 | }
|
---|
469 | else {
|
---|
470 | $target_file_path = &util::get_tmp_filename($target_file_type);
|
---|
471 | push(@{$self->{'tmp_file_paths'}}, $target_file_path);
|
---|
472 |
|
---|
473 | # Output filename used to be parsed from result line:
|
---|
474 | # my ($ofilename) = ($result =~ m/=>(.*\.$target_file_type)/);
|
---|
475 | # by the function that called 'convert'
|
---|
476 | # but this is no longer needed, as output filename is now
|
---|
477 | # explicitly passed back
|
---|
478 | }
|
---|
479 |
|
---|
480 | # Generate and run the convert command
|
---|
481 | my $convert_command = "\"".&util::get_perl_exec()."\" -S gs-magick.pl --verbosity=".$self->{'verbosity'}." convert -interlace plane -verbose $convert_options \"$source_file_path\" \"$target_file_path\"";
|
---|
482 |
|
---|
483 | my $print_info = { 'message_prefix' => $convert_id,
|
---|
484 | 'message' => "Converting image $source_file_no_path to: $convert_id $target_file_type" };
|
---|
485 | $print_info->{'cache_mode'} = $cache_mode if ($cache_mode ne "");
|
---|
486 |
|
---|
487 | my ($regenerated,$result,$had_error)
|
---|
488 | = $self->autorun_general_cmd($convert_command,$source_file_path,$target_file_path,$print_info);
|
---|
489 |
|
---|
490 | return ($result,$target_file_path);
|
---|
491 | }
|
---|
492 |
|
---|
493 |
|
---|
494 | sub convert_without_result {
|
---|
495 | my $self = shift(@_);
|
---|
496 |
|
---|
497 | my $source_file_path = shift(@_);
|
---|
498 | my $target_file_type = shift(@_);
|
---|
499 | my $convert_options = shift(@_) || "";
|
---|
500 | my $convert_id = shift(@_) || "";
|
---|
501 |
|
---|
502 | return $self->convert($source_file_path,$target_file_type,
|
---|
503 | $convert_options,$convert_id,"without_result");
|
---|
504 | }
|
---|
505 |
|
---|
506 |
|
---|
507 | sub aspectpad {
|
---|
508 | my $self = shift(@_);
|
---|
509 | my $source_file_path = shift(@_);
|
---|
510 | my $target_file_type = shift(@_);
|
---|
511 | my $aspectpad_ratio = shift(@_);
|
---|
512 | my $aspectpad_mode = shift(@_);
|
---|
513 | my $aspectpad_colour = shift(@_);
|
---|
514 | my $aspectpad_tolerance = shift(@_);
|
---|
515 |
|
---|
516 | my $aspectpad_options = shift(@_) || "";
|
---|
517 | my $aspectpad_id = shift(@_) || "";
|
---|
518 | my $cache_mode = shift(@_) || "";
|
---|
519 |
|
---|
520 | my $outhandle = $self->{'outhandle'};
|
---|
521 | my $verbosity = $self->{'verbosity'};
|
---|
522 |
|
---|
523 | my $source_file_no_path = &File::Basename::basename($source_file_path);
|
---|
524 |
|
---|
525 | # Determine the full name and path of the output file
|
---|
526 | my $target_file_path;
|
---|
527 | if ($self->{'enable_cache'}) {
|
---|
528 | my $cached_image_dir = $self->{'cached_dir'};
|
---|
529 | my $image_root = $self->{'cached_file_root'};
|
---|
530 | $image_root .= "_$aspectpad_id" if ($aspectpad_id ne "");
|
---|
531 | my $image_file = "$image_root.$target_file_type";
|
---|
532 | $target_file_path = &FileUtils::filenameConcatenate($cached_image_dir,$image_file);
|
---|
533 | }
|
---|
534 | else {
|
---|
535 | $target_file_path = &util::get_tmp_filename($target_file_type);
|
---|
536 | push(@{$self->{'tmp_file_paths'}}, $target_file_path);
|
---|
537 | }
|
---|
538 |
|
---|
539 | # Generate and run the aspectpad command
|
---|
540 | my $aspectpad_command = "\"".&util::get_perl_exec()."\" -S gs-magick.pl --verbosity=".$self->{'verbosity'}." aspectpad.sh -a $aspectpad_ratio -m $aspectpad_mode -p \"$aspectpad_colour\" -t $aspectpad_tolerance $aspectpad_options \"$source_file_path\" \"$target_file_path\"";
|
---|
541 |
|
---|
542 | my $print_info = { 'message_prefix' => $aspectpad_id,
|
---|
543 | 'message' => "Aspect padding image $source_file_no_path to: $aspectpad_id $target_file_type" };
|
---|
544 | $print_info->{'cache_mode'} = $cache_mode if ($cache_mode ne "");
|
---|
545 |
|
---|
546 | my ($regenerated,$result,$had_error)
|
---|
547 | = $self->autorun_general_cmd($aspectpad_command,$source_file_path,$target_file_path,$print_info);
|
---|
548 |
|
---|
549 | return ($result,$target_file_path);
|
---|
550 | }
|
---|
551 |
|
---|
552 |
|
---|
553 |
|
---|
554 |
|
---|
555 |
|
---|
556 | # Discover the characteristics of an image file with the ImageMagick
|
---|
557 | # "identify" command.
|
---|
558 |
|
---|
559 | sub identify {
|
---|
560 | my ($image, $outhandle, $verbosity) = @_;
|
---|
561 |
|
---|
562 | # Use the ImageMagick "identify" command to get the file specs
|
---|
563 | my $command = "\"".&util::get_perl_exec()."\" -S gs-magick.pl identify \"$image\" 2>&1";
|
---|
564 | print $outhandle "$command\n" if ($verbosity > 2);
|
---|
565 | my $result = '';
|
---|
566 | $result = `$command`;
|
---|
567 | print $outhandle "$result\n" if ($verbosity > 3);
|
---|
568 |
|
---|
569 | # Read the type, width, and height
|
---|
570 | my $type = 'unknown';
|
---|
571 | my $width = 'unknown';
|
---|
572 | my $height = 'unknown';
|
---|
573 |
|
---|
574 | my $image_safe = quotemeta $image;
|
---|
575 | if ($result =~ /^$image_safe (\w+) (\d+)x(\d+)/) {
|
---|
576 | $type = $1;
|
---|
577 | $width = $2;
|
---|
578 | $height = $3;
|
---|
579 | }
|
---|
580 |
|
---|
581 | # Read the size
|
---|
582 | my $size = "unknown";
|
---|
583 | my $size_str="unknown";
|
---|
584 |
|
---|
585 | if ($result =~ m/^.* ([0-9]+)b/i) {
|
---|
586 | $size_str="$1B"; # display string
|
---|
587 | $size = $1;
|
---|
588 | }
|
---|
589 | elsif ($result =~ m/^.* ([0-9]+)(\.([0-9]+))?kb?/i) {
|
---|
590 | # display string stays about the same
|
---|
591 | $size_str="$1";
|
---|
592 | $size_str.="$2" if defined $2;
|
---|
593 | $size_str.="KB";
|
---|
594 |
|
---|
595 | $size = 1024 * $1;
|
---|
596 | if (defined($2)) {
|
---|
597 | $size = $size + (1024 * $2);
|
---|
598 | # Truncate size (it isn't going to be very accurate anyway)
|
---|
599 | $size = int($size);
|
---|
600 | }
|
---|
601 | }
|
---|
602 | elsif ($result =~ m/^.* ([0-9]+)(\.([0-9]+))?mb?/i) {
|
---|
603 | # display string stays about the same
|
---|
604 | $size_str="$1";
|
---|
605 | $size_str.="$2" if defined $2;
|
---|
606 | $size_str.="MB";
|
---|
607 |
|
---|
608 | $size = 1024 * 1024 * $1;
|
---|
609 | if (defined($2)) {
|
---|
610 | $size = $size + (1024 * 1024 * $2);
|
---|
611 | # Truncate size (it isn't going to be very accurate anyway)
|
---|
612 | $size = int($size);
|
---|
613 | }
|
---|
614 | }
|
---|
615 | elsif ($result =~ m/^.* ((([0-9]+)(\.([0-9]+))?e\+([0-9]+))(kb|b)?)/i) {
|
---|
616 | # display string stays the same
|
---|
617 | $size_str="$1";
|
---|
618 |
|
---|
619 | # Deals with file sizes on Linux of type "3.4e+02kb" where e+02 is 1*10^2.
|
---|
620 | # 3.4e+02 therefore evaluates to 3.4 x 1 x 10^2 = 340kb.
|
---|
621 | # Programming languages including Perl know how that 3.4e+02 is a number,
|
---|
622 | # so we don't need to do any calculations.
|
---|
623 | # $2 is just the number without the kb/b at the end.
|
---|
624 | $size = $2*1; # turn the string into a number by multiplying it by 1
|
---|
625 | #if we did $size = $1; $size would be merely the string "3.4e+02"
|
---|
626 | $size = int($size); # truncate size
|
---|
627 | }
|
---|
628 | print $outhandle "file: $image:\t $type, $width, $height, $size, $size_str\n"
|
---|
629 | if ($verbosity > 2);
|
---|
630 |
|
---|
631 | # Return the specs
|
---|
632 | return ($type, $width, $height, $size, $size_str);
|
---|
633 | }
|
---|
634 |
|
---|
635 | sub clean_up_temporary_files {
|
---|
636 | my $self = shift(@_);
|
---|
637 |
|
---|
638 | foreach my $tmp_file_path (@{$self->{'tmp_file_paths'}}) {
|
---|
639 | if (-e $tmp_file_path) {
|
---|
640 | &FileUtils::removeFiles($tmp_file_path);
|
---|
641 | }
|
---|
642 | }
|
---|
643 |
|
---|
644 | }
|
---|
645 |
|
---|
646 | # image/jpg is not a valid mime-type, it ought to be image/jpeg.
|
---|
647 | # Sometimes JPEG is passed in also, want to keep things lowercase just in case.
|
---|
648 | sub correct_mime_type {
|
---|
649 | my $self = shift(@_);
|
---|
650 | my ($file_extension) = @_;
|
---|
651 |
|
---|
652 | $file_extension = lc($file_extension);
|
---|
653 | $file_extension =~ s/jpg/jpeg/s;
|
---|
654 |
|
---|
655 | return $file_extension;
|
---|
656 | }
|
---|
657 |
|
---|
658 | 1;
|
---|