| 1 | package ImageConverter;
|
|---|
| 2 |
|
|---|
| 3 | use PrintInfo;
|
|---|
| 4 |
|
|---|
| 5 | use strict;
|
|---|
| 6 |
|
|---|
| 7 | BEGIN {
|
|---|
| 8 | @ImageConverter::ISA = ('PrintInfo');
|
|---|
| 9 | }
|
|---|
| 10 |
|
|---|
| 11 | my $arguments = [
|
|---|
| 12 | { 'name' => "create_thumbnail",
|
|---|
| 13 | 'desc' => "{ImageConverter.generatethumbnail}",
|
|---|
| 14 | 'type' => "bool",
|
|---|
| 15 | 'deft' => "true",
|
|---|
| 16 | 'reqd' => "no" },
|
|---|
| 17 | { 'name' => "noscaleup",
|
|---|
| 18 | 'desc' => "{ImageConverter.noscaleup}",
|
|---|
| 19 | 'type' => "flag",
|
|---|
| 20 | 'reqd' => "no" },
|
|---|
| 21 | { 'name' => "thumbnailsize",
|
|---|
| 22 | 'desc' => "{ImageConverter.thumbnailsize}",
|
|---|
| 23 | 'type' => "int",
|
|---|
| 24 | 'deft' => "100",
|
|---|
| 25 | 'range' => "1,",
|
|---|
| 26 | 'reqd' => "no" },
|
|---|
| 27 | { 'name' => "thumbnailtype",
|
|---|
| 28 | 'desc' => "{ImageConverter.thumbnailtype}",
|
|---|
| 29 | 'type' => "string",
|
|---|
| 30 | 'deft' => "gif",
|
|---|
| 31 | 'reqd' => "no" },
|
|---|
| 32 | { 'name' => "create_screenview",
|
|---|
| 33 | 'desc' => "{ImageConverter.generatescreenview}",
|
|---|
| 34 | 'type' => "bool",
|
|---|
| 35 | 'deft' => "true",
|
|---|
| 36 | 'reqd' => "no" },
|
|---|
| 37 | { 'name' => "screenviewsize",
|
|---|
| 38 | 'desc' => "{ImageConverter.screenviewsize}",
|
|---|
| 39 | 'type' => "int",
|
|---|
| 40 | 'deft' => "500",
|
|---|
| 41 | 'range' => "1,",
|
|---|
| 42 | 'reqd' => "no" },
|
|---|
| 43 | { 'name' => "screenviewtype",
|
|---|
| 44 | 'desc' => "{ImageConverter.screenviewtype}",
|
|---|
| 45 | 'type' => "string",
|
|---|
| 46 | 'deft' => "jpg",
|
|---|
| 47 | 'reqd' => "no" },
|
|---|
| 48 | { 'name' => "converttotype",
|
|---|
| 49 | 'desc' => "{ImageConverter.converttotype}",
|
|---|
| 50 | 'type' => "string",
|
|---|
| 51 | 'deft' => "",
|
|---|
| 52 | 'reqd' => "no" },
|
|---|
| 53 | { 'name' => "noscaleup",
|
|---|
| 54 | 'desc' => "{ImageConverter.noscaleup}",
|
|---|
| 55 | 'type' => "flag",
|
|---|
| 56 | 'reqd' => "no" },
|
|---|
| 57 | { 'name' => "minimumsize",
|
|---|
| 58 | 'desc' => "{ImageConverter.minimumsize}",
|
|---|
| 59 | 'type' => "int",
|
|---|
| 60 | 'deft' => "100",
|
|---|
| 61 | 'range' => "1,",
|
|---|
| 62 | 'reqd' => "no" },
|
|---|
| 63 | { 'name' => "cache_generated_images",
|
|---|
| 64 | 'desc' => "{ImageConverter.cache_generated_image}",
|
|---|
| 65 | 'type' => "flag",
|
|---|
| 66 | 'reqd' => "no" }
|
|---|
| 67 | ];
|
|---|
| 68 |
|
|---|
| 69 | my $options = { 'name' => "ImageConverter",
|
|---|
| 70 | 'desc' => "{ImageConverter.desc}",
|
|---|
| 71 | 'abstract' => "yes",
|
|---|
| 72 | 'inherits' => "yes",
|
|---|
| 73 | 'args' => $arguments };
|
|---|
| 74 |
|
|---|
| 75 | sub new {
|
|---|
| 76 | my ($class) = shift (@_);
|
|---|
| 77 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
|
|---|
| 78 | push(@$pluginlist, $class);
|
|---|
| 79 |
|
|---|
| 80 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
|
|---|
| 81 | push(@{$hashArgOptLists->{"OptList"}},$options);
|
|---|
| 82 |
|
|---|
| 83 | my $self = new PrintInfo($pluginlist, $inputargs, $hashArgOptLists);
|
|---|
| 84 |
|
|---|
| 85 | # Check that ImageMagick is installed and available on the path (except for Windows 95/98)
|
|---|
| 86 | if (!($ENV{'GSDLOS'} eq "windows" && !Win32::IsWinNT())) {
|
|---|
| 87 | my $result = `identify 2>&1`;
|
|---|
| 88 | if ($? == -1 || $? == 256) { # Linux and Windows return different values for "program not found"
|
|---|
| 89 | $self->{'imagemagick_not_installed'} = 1;
|
|---|
| 90 | }
|
|---|
| 91 | }
|
|---|
| 92 | return bless $self, $class;
|
|---|
| 93 |
|
|---|
| 94 | }
|
|---|
| 95 |
|
|---|
| 96 | sub init {
|
|---|
| 97 | my $self = shift(@_);
|
|---|
| 98 |
|
|---|
| 99 | $self->{'tmp_file_paths'} = ();
|
|---|
| 100 | }
|
|---|
| 101 |
|
|---|
| 102 | sub check_imagemagick {
|
|---|
| 103 |
|
|---|
| 104 | my $self = shift (@_);
|
|---|
| 105 | my ($gli) = @_;
|
|---|
| 106 |
|
|---|
| 107 | my $outhandle = $self->{'outhandle'};
|
|---|
| 108 |
|
|---|
| 109 | my $image_magick_ok = 1;
|
|---|
| 110 | # None of this works very well on Windows 95/98...
|
|---|
| 111 | if ($ENV{'GSDLOS'} eq "windows" && !Win32::IsWinNT()) {
|
|---|
| 112 | if ($gli) {
|
|---|
| 113 | #print STDERR "<ProcessingError n='$file' r='Windows 95/98 not supported'>\n";
|
|---|
| 114 | # have no file here. other kind of error? just want a warning really
|
|---|
| 115 | }
|
|---|
| 116 | print $outhandle "ImageConverter: Windows 95/98 not supported, no image processing available\n";
|
|---|
| 117 | $image_magick_ok = 0;
|
|---|
| 118 |
|
|---|
| 119 | } else {
|
|---|
| 120 | # Check that ImageMagick is installed and available on the path
|
|---|
| 121 | my $result = `identify 2>&1`;
|
|---|
| 122 | if ($? == -1 || $? == 256) { # Linux and Windows return different values for "program not found"
|
|---|
| 123 | if ($gli) {
|
|---|
| 124 | #print STDERR "<ProcessingError n='$file' r='ImageMagick not installed'>\n";
|
|---|
| 125 | }
|
|---|
| 126 | print $outhandle "ImageConverter: ImageMagick not installed, no image processing available\n";
|
|---|
| 127 | $image_magick_ok = 0;
|
|---|
| 128 | }
|
|---|
| 129 | }
|
|---|
| 130 | return $image_magick_ok;
|
|---|
| 131 |
|
|---|
| 132 | }
|
|---|
| 133 |
|
|---|
| 134 | # convert image to new type if converttotype is set
|
|---|
| 135 | # generate thumbnails if required
|
|---|
| 136 | # generate screenview if required
|
|---|
| 137 | # discover image metadata
|
|---|
| 138 | sub generate_images {
|
|---|
| 139 | my $self = shift(@_);
|
|---|
| 140 |
|
|---|
| 141 | my ($filename_full_path, $filename_no_path, $doc_obj, $section) = @_;
|
|---|
| 142 |
|
|---|
| 143 | # check the filenames
|
|---|
| 144 | return 0 if ($filename_no_path eq "" || !-f $filename_full_path);
|
|---|
| 145 |
|
|---|
| 146 | my $verbosity = $self->{'verbosity'};
|
|---|
| 147 | my $outhandle = $self->{'outhandle'};
|
|---|
| 148 |
|
|---|
| 149 | # check the size of the image against minimum size if specified
|
|---|
| 150 | my $minimumsize = $self->{'minimumsize'};
|
|---|
| 151 | if (defined $minimumsize && (-s $filename_full_path < $minimumsize)) {
|
|---|
| 152 | print $outhandle "ImageConverter: \"$filename_full_path\" too small, skipping\n"
|
|---|
| 153 | if ($verbosity > 1);
|
|---|
| 154 | return 0; # or is there a better return value??
|
|---|
| 155 | }
|
|---|
| 156 |
|
|---|
| 157 | my $filehead = $filename_no_path;
|
|---|
| 158 | $filehead =~ s/\.([^\.]*)$//; # filename with no extension
|
|---|
| 159 | my $assocfilemeta = "[assocfilepath]";
|
|---|
| 160 | if ($section ne $doc_obj->get_top_section()) {
|
|---|
| 161 | $assocfilemeta = "[parent(Top):assocfilepath]";
|
|---|
| 162 | }
|
|---|
| 163 |
|
|---|
| 164 | # Convert the image to a new type (if required).
|
|---|
| 165 | my $converttotype = $self->{'converttotype'};
|
|---|
| 166 | my $type = "unknown";
|
|---|
| 167 |
|
|---|
| 168 | if ($converttotype ne "" && $filename_full_path !~ m/$converttotype$/) {
|
|---|
| 169 |
|
|---|
| 170 | my $result = $self->convert($filename_full_path, $converttotype, "", "");
|
|---|
| 171 | ($filename_full_path) = ($result =~ /=>(.*\.$converttotype)/);
|
|---|
| 172 |
|
|---|
| 173 | $type = $converttotype;
|
|---|
| 174 | $filename_no_path = "$filehead.$type";
|
|---|
| 175 | }
|
|---|
| 176 |
|
|---|
| 177 | # add Image metadata
|
|---|
| 178 | $doc_obj->add_metadata($section, "Image", $filename_no_path);
|
|---|
| 179 |
|
|---|
| 180 | # Source and SourceUTF8 - should this be converted filename or original?
|
|---|
| 181 | # here we overwrite the originals with converted ones
|
|---|
| 182 | $self->set_Source_metadata($doc_obj, $filename_no_path);
|
|---|
| 183 |
|
|---|
| 184 | # use identify to get info about the (possibly converted) image
|
|---|
| 185 | my ($image_type, $image_width, $image_height, $image_size)
|
|---|
| 186 | = &identify($filename_full_path, $outhandle, $verbosity);
|
|---|
| 187 |
|
|---|
| 188 | if ($image_type ne " ") {
|
|---|
| 189 | $type = $image_type;
|
|---|
| 190 | }
|
|---|
| 191 |
|
|---|
| 192 | #overwrite the ones added in BasePlugin
|
|---|
| 193 | $doc_obj->set_metadata_element ($section, "FileFormat", $type);
|
|---|
| 194 | $doc_obj->set_metadata_element ($section, "FileSize", $image_size);
|
|---|
| 195 |
|
|---|
| 196 | $doc_obj->add_metadata ($section, "ImageType", $image_type);
|
|---|
| 197 | $doc_obj->add_metadata ($section, "ImageWidth", $image_width);
|
|---|
| 198 | $doc_obj->add_metadata ($section, "ImageHeight", $image_height);
|
|---|
| 199 | $doc_obj->add_metadata ($section, "ImageSize", $image_size);
|
|---|
| 200 |
|
|---|
| 201 | $doc_obj->add_metadata ($section, "srclink", "<a href=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Image]\">");
|
|---|
| 202 | $doc_obj->add_metadata ($section, "/srclink", "</a>");
|
|---|
| 203 | $doc_obj->add_metadata ($section, "srcicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Image]\" width=\"100\">");
|
|---|
| 204 |
|
|---|
| 205 | # Add the image as an associated file
|
|---|
| 206 | $doc_obj->associate_file($filename_full_path, $filename_no_path, "image/$type", $section);
|
|---|
| 207 |
|
|---|
| 208 | if ($self->{'create_thumbnail'} eq "true") {
|
|---|
| 209 | $self->create_thumbnail($filename_full_path, $filehead, $doc_obj, $section, $assocfilemeta);
|
|---|
| 210 | }
|
|---|
| 211 | if ($self->{'create_screenview'} eq "true") {
|
|---|
| 212 | $self->create_screenview($filename_full_path, $filehead, $doc_obj, $section, $assocfilemeta);
|
|---|
| 213 | }
|
|---|
| 214 | }
|
|---|
| 215 |
|
|---|
| 216 | sub create_thumbnail {
|
|---|
| 217 | my $self = shift(@_);
|
|---|
| 218 | my ($original_file, $filehead, $doc_obj, $section, $assocfilemeta) = @_;
|
|---|
| 219 |
|
|---|
| 220 | my $thumbnailsize = $self->{'thumbnailsize'};
|
|---|
| 221 | my $thumbnailtype = $self->{'thumbnailtype'};
|
|---|
| 222 |
|
|---|
| 223 | # Generate the thumbnail with convert
|
|---|
| 224 | my $result = $self->convert($original_file, $thumbnailtype, "-geometry $thumbnailsize" . "x$thumbnailsize", "THUMB");
|
|---|
| 225 | my ($thumbnailfile) = ($result =~ /=>(.*\.$thumbnailtype)/);
|
|---|
| 226 |
|
|---|
| 227 | # Add the thumbnail as an associated file ...
|
|---|
| 228 | if (-e "$thumbnailfile") {
|
|---|
| 229 | $doc_obj->associate_file("$thumbnailfile", $filehead."_thumb.$thumbnailtype",
|
|---|
| 230 | "image/$thumbnailtype",$section);
|
|---|
| 231 | $doc_obj->add_metadata ($section, "ThumbType", $thumbnailtype);
|
|---|
| 232 | $doc_obj->add_metadata ($section, "Thumb", $filehead."_thumb.$thumbnailtype");
|
|---|
| 233 |
|
|---|
| 234 | $doc_obj->add_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Thumb]\" width=[ThumbWidth] height=[ThumbHeight]>");
|
|---|
| 235 |
|
|---|
| 236 |
|
|---|
| 237 | # Extract Thumbnail metadata from convert output
|
|---|
| 238 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 239 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
|
|---|
| 240 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
|
|---|
| 241 | }
|
|---|
| 242 | } else {
|
|---|
| 243 | my $outhandle = $self->{'outhandle'};
|
|---|
| 244 | print $outhandle "Couldn't find thumbnail $thumbnailfile\n";
|
|---|
| 245 |
|
|---|
| 246 | }
|
|---|
| 247 | }
|
|---|
| 248 |
|
|---|
| 249 | sub create_screenview {
|
|---|
| 250 |
|
|---|
| 251 | my $self = shift(@_);
|
|---|
| 252 | my ($original_file, $filehead, $doc_obj, $section, $assocfilemeta) = @_;
|
|---|
| 253 |
|
|---|
| 254 | # To do: if the actual image smaller than the screenview size,
|
|---|
| 255 | # we should use the original !
|
|---|
| 256 |
|
|---|
| 257 | my $screenviewsize = $self->{'screenviewsize'};
|
|---|
| 258 | my $screenviewtype = $self->{'screenviewtype'};
|
|---|
| 259 |
|
|---|
| 260 | # make the screenview image
|
|---|
| 261 | my $result = $self->convert($original_file, $screenviewtype, "-geometry $screenviewsize" . "x$screenviewsize", "SCREEN");
|
|---|
| 262 | my ($screenviewfilename) = ($result =~ /=>(.*\.$screenviewtype)/);
|
|---|
| 263 |
|
|---|
| 264 |
|
|---|
| 265 | #add the screenview as an associated file ...
|
|---|
| 266 | if (-e "$screenviewfilename") {
|
|---|
| 267 | $doc_obj->associate_file("$screenviewfilename", $filehead."_screen.$screenviewtype", "image/$screenviewtype",$section);
|
|---|
| 268 | $doc_obj->add_metadata ($section, "ScreenType", $screenviewtype);
|
|---|
| 269 | $doc_obj->add_metadata ($section, "Screen", $filehead."_screen.$screenviewtype");
|
|---|
| 270 |
|
|---|
| 271 | $doc_obj->add_metadata ($section, "screenicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/$assocfilemeta/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
|
|---|
| 272 |
|
|---|
| 273 | # get screenview dimensions, size and type
|
|---|
| 274 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 275 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
|---|
| 276 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
|---|
| 277 | } elsif ($result =~ m/([0-9]+)x([0-9]+)/) {
|
|---|
| 278 | #if the image hasn't changed size, the previous regex doesn't match
|
|---|
| 279 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
|---|
| 280 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
|---|
| 281 | }
|
|---|
| 282 | } else {
|
|---|
| 283 | my $outhandle = $self->{'outhandle'};
|
|---|
| 284 | print $outhandle "Couldn't find screenview file $screenviewfilename\n";
|
|---|
| 285 |
|
|---|
| 286 | }
|
|---|
| 287 |
|
|---|
| 288 | }
|
|---|
| 289 |
|
|---|
| 290 |
|
|---|
| 291 |
|
|---|
| 292 | sub convert {
|
|---|
| 293 | my $self = shift(@_);
|
|---|
| 294 | my $source_file_path = shift(@_);
|
|---|
| 295 | my $target_file_type = shift(@_);
|
|---|
| 296 | my $convert_options = shift(@_) || "";
|
|---|
| 297 | my $convert_type = shift(@_) || "";
|
|---|
| 298 |
|
|---|
| 299 | my $outhandle = $self->{'outhandle'};
|
|---|
| 300 | my $verbosity = $self->{'verbosity'};
|
|---|
| 301 |
|
|---|
| 302 | # Determine the full name and path of the output file
|
|---|
| 303 | my $filehead = &util::get_tmp_filename();
|
|---|
| 304 | my $target_file_path = $filehead . "." . $target_file_type;
|
|---|
| 305 | push(@{$self->{'tmp_file_paths'}}, $target_file_path);
|
|---|
| 306 |
|
|---|
| 307 | # Generate and run the convert command
|
|---|
| 308 | my $convert_command = "convert -interlace plane -verbose $convert_options \"$source_file_path\" \"$target_file_path\"";
|
|---|
| 309 | print $outhandle "$convert_type $convert_command\n" if ($verbosity > 2);
|
|---|
| 310 | my $result = `$convert_command 2>&1`;
|
|---|
| 311 | print $outhandle "$convert_type RESULT = $result\n" if ($verbosity > 2);
|
|---|
| 312 |
|
|---|
| 313 | return $result;
|
|---|
| 314 | }
|
|---|
| 315 |
|
|---|
| 316 |
|
|---|
| 317 | # Discover the characteristics of an image file with the ImageMagick
|
|---|
| 318 | # "identify" command.
|
|---|
| 319 |
|
|---|
| 320 | sub identify {
|
|---|
| 321 | my ($image, $outhandle, $verbosity) = @_;
|
|---|
| 322 |
|
|---|
| 323 | # Use the ImageMagick "identify" command to get the file specs
|
|---|
| 324 | my $command = "identify \"$image\" 2>&1";
|
|---|
| 325 | print $outhandle "$command\n" if ($verbosity > 2);
|
|---|
| 326 | my $result = '';
|
|---|
| 327 | $result = `$command`;
|
|---|
| 328 | print $outhandle "$result\n" if ($verbosity > 3);
|
|---|
| 329 |
|
|---|
| 330 | # Read the type, width, and height
|
|---|
| 331 | my $type = 'unknown';
|
|---|
| 332 | my $width = 'unknown';
|
|---|
| 333 | my $height = 'unknown';
|
|---|
| 334 |
|
|---|
| 335 | my $image_safe = quotemeta $image;
|
|---|
| 336 | if ($result =~ /^$image_safe (\w+) (\d+)x(\d+)/) {
|
|---|
| 337 | $type = $1;
|
|---|
| 338 | $width = $2;
|
|---|
| 339 | $height = $3;
|
|---|
| 340 | }
|
|---|
| 341 |
|
|---|
| 342 | # Read the size
|
|---|
| 343 | my $size = "unknown";
|
|---|
| 344 | if ($result =~ m/^.* ([0-9]+)b/) {
|
|---|
| 345 | $size = $1;
|
|---|
| 346 | }
|
|---|
| 347 | elsif ($result =~ m/^.* ([0-9]+)(\.([0-9]+))?kb?/) {
|
|---|
| 348 | $size = 1024 * $1;
|
|---|
| 349 | if (defined($2)) {
|
|---|
| 350 | $size = $size + (1024 * $2);
|
|---|
| 351 | # Truncate size (it isn't going to be very accurate anyway)
|
|---|
| 352 | $size = int($size);
|
|---|
| 353 | }
|
|---|
| 354 | }
|
|---|
| 355 | elsif ($result =~ m/^.* (([0-9]+)(\.([0-9]+))?e\+([0-9]+))(kb|b)?/) {
|
|---|
| 356 | # Deals with file sizes on Linux of type "3.4e+02kb" where e+02 is 1*10^2.
|
|---|
| 357 | # 3.4e+02 therefore evaluates to 3.4 x 1 x 10^2 = 340kb.
|
|---|
| 358 | # Programming languages including Perl know how that 3.4e+02 is a number,
|
|---|
| 359 | # so we don't need to do any calculations.
|
|---|
| 360 | $size = $1*1; # turn the string into a number by multiplying it by 1
|
|---|
| 361 | #if we did $size = $1; $size would be merely the string "3.4e+02"
|
|---|
| 362 | $size = int($size); # truncate size
|
|---|
| 363 | }
|
|---|
| 364 | print $outhandle "file: $image:\t $type, $width, $height, $size\n"
|
|---|
| 365 | if ($verbosity > 2);
|
|---|
| 366 |
|
|---|
| 367 | # Return the specs
|
|---|
| 368 | return ($type, $width, $height, $size);
|
|---|
| 369 | }
|
|---|
| 370 |
|
|---|
| 371 | sub clean_up_temporary_files {
|
|---|
| 372 | my $self = shift(@_);
|
|---|
| 373 |
|
|---|
| 374 | foreach my $tmp_file_path (@{$self->{'tmp_file_paths'}}) {
|
|---|
| 375 | if (-e $tmp_file_path) {
|
|---|
| 376 | &util::rm($tmp_file_path);
|
|---|
| 377 | }
|
|---|
| 378 | }
|
|---|
| 379 |
|
|---|
| 380 | }
|
|---|
| 381 |
|
|---|
| 382 | 1;
|
|---|
