tell entries found for each directory, as it may be rather long
[booh] / bin / booh-classifier
1 #! /usr/bin/ruby
2 #
3 #                         *  BOOH  *
4 #
5 # A.k.a 'Best web-album Of the world, Or your money back, Humerus'.
6 #
7 # The acronyn sucks, however this is a tribute to Dragon Ball by
8 # Akira Toriyama, where the last enemy beaten by heroes of Dragon
9 # Ball is named "Boo". But there was already a free software project
10 # called Boo, so this one will be it "Booh". Or whatever.
11 #
12 #
13 # Copyright (c) 2004-2009 Guillaume Cottenceau <http://zarb.org/~gc/resource/gc_mail.png>
14 #
15 # This software may be freely redistributed under the terms of the GNU
16 # public license version 2.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
22 require 'getoptlong'
23 require 'tempfile'
24
25 require 'gtk2'
26 require 'booh/libadds'
27
28 require 'gettext'
29 include GetText
30 bindtextdomain("booh")
31
32 require 'booh/rexml/document'
33 include REXML
34
35 require 'booh/booh-lib'
36 include Booh
37 require 'booh/UndoHandler'
38
39
40 #- options
41 $options = [
42     [ '--help',          '-h', GetoptLong::NO_ARGUMENT, _("Get help message") ],
43     [ '--sort-by-exif-date', '-s', GetoptLong::NO_ARGUMENT, _("Sort entries by EXIF date") ],
44     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
45     [ '--version',       '-V', GetoptLong::NO_ARGUMENT, _("Print version and exit") ],
46 ]
47
48 $preloader_allowed = false
49
50 def usage
51     puts _("Usage: %s [OPTION]...") % File.basename($0)
52     $options.each { |ary|
53         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
54     }
55 end
56
57 def handle_options
58     parser = GetoptLong.new
59     parser.set_options(*$options.collect { |ary| ary[0..2] })
60     begin
61         parser.each_option do |name, arg|
62             case name
63             when '--help'
64                 usage
65                 exit(0)
66
67             when '--sort-by-exif-date'
68                 $sort_by_exif_date = true
69
70             when '--verbose-level'
71                 $verbose_level = arg.to_i
72
73             when '--version'
74                 puts _("Booh version %s
75
76 Copyright (c) 2005-2009 Guillaume Cottenceau.
77 This is free software; see the source for copying conditions.  There is NO
78 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.") % $VERSION
79
80                 exit(0)
81
82             end
83         end
84     rescue
85         puts $!
86         usage
87         exit(1)
88     end
89 end
90
91 def total_memory
92     meminfo = IO.readlines('/proc/meminfo').join
93     meminfo =~ /MemTotal:.*?(\d+)/ or return -1
94     memory = $1.to_i
95     meminfo =~ /SwapTotal:.*?(\d+)/ or return -1
96     return memory + $1.to_i
97 end
98
99 def startup_memfree
100     if $startup_memfree.nil?
101         meminfo = IO.readlines('/proc/meminfo').join
102         meminfo =~ /MemFree:.*?(\d+)/ or return -1
103         memfree = $1
104         meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
105         meminfo =~ /Cached:.*?(\d+)/ and cached = $1
106         $startup_memfree = memfree.to_i + buffers.to_i + cached.to_i
107     end
108     return $startup_memfree
109 end
110
111 def set_cache_memory_use_figure
112     
113     if $config['cache-memory-use'] =~ /memfree_(\d+)/
114         $config['cache-memory-use-figure'] = startup_memfree*$1.to_f/100
115     else
116         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
117     end
118     #- cannot fork if process is > 0.5 total memory
119     if $config['cache-memory-use-figure'] > total_memory * 0.4
120         $config['cache-memory-use-figure'] = total_memory * 0.4
121         msg 2, _("Cache memory used: %s kB (reduced because cannot exceed 50%% of total memory)") % $config['cache-memory-use-figure']
122     else
123         msg 2, _("Cache memory used: %s kB") % $config['cache-memory-use-figure']
124     end
125 end
126
127 def read_config
128     $config = {}
129     $config_file = File.expand_path('~/.booh-classifier-rc')
130     if File.readable?($config_file)
131         $xmldoc = REXML::Document.new(File.new($config_file))
132         $xmldoc.root.elements.each { |element|
133             txt = element.get_text
134             if txt
135                 if txt.value =~ /~~~/
136                     $config[element.name] = txt.value.split(/~~~/)
137                 else
138                     $config[element.name] = txt.value
139                 end
140             elsif element.elements.size == 0
141                 $config[element.name] = ''
142             else
143                 $config[element.name] = {}
144                 element.each { |chld|
145                     txt = chld.get_text
146                     $config[element.name][chld.name] = txt ? txt.value : nil
147                 }
148             end
149         }
150     end
151     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
152     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
153     $config['preload-distance'] ||= '5'
154     $config['cache-memory-use'] ||= 'memfree_80%'
155     $config['rotate-set-exif'] ||= 'true'
156     $config['thumbnails-height'] ||= '64'
157     set_cache_memory_use_figure
158 end
159
160 def check_config
161     missing = %w(mplayer).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
162     if missing != []
163         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
164     end
165
166     if !system("which exif >/dev/null 2>/dev/null")
167         show_popup($main_window, utf8(_("The program 'exif' is needed to view EXIF data. Please install it.")), { :pos_centered => true })
168     end
169     viewer_binary = $config['video-viewer'].split.first
170     if viewer_binary && ! File.executable?(viewer_binary)
171         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
172 You should fix this in Edit/Preferences so that you can view videos.
173
174 Problem was: '%s' is not an executable file.
175 Hint: don't forget to specify the full path to the executable,
176 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
177     end
178     check_browser
179 end
180
181 def write_config
182     ios = File.open($config_file, "w")
183     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
184     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
185     $config.each_pair { |key, value|
186         elem = $xmldoc.root.add_element key
187         if value.is_a? Hash
188             $config[key].each_pair { |subkey, subvalue|
189                 subelem = elem.add_element subkey
190                 subelem.add_text subvalue.to_s
191             }
192         elsif value.is_a? Array
193             elem.add_text value.join('~~~')
194         else
195             if !value
196                 elem.remove
197             else
198                 elem.add_text value.to_s
199             end
200         end
201     }
202     $xmldoc.write(ios)
203     ios.close
204 end
205
206 def save_undo(name, closure, *params)
207     UndoHandler.save_undo(name, closure, [ *params ])
208     $undo_mb.sensitive = true
209     $redo_mb.sensitive = false
210 end
211
212 def get_mem
213     IO.readlines('/proc/self/status').join =~ /VmSize.*?(\d+)\s*kB/
214     msg 3, "VmSize: #{$1}"
215     return $1.to_i
216 end
217
218 def show_mem(*txt)
219     txt.length > 0 and print txt[0]
220     msg 2, "RSS: #{get_mem}"
221 end
222
223 class Gdk::Color
224     def darker
225         color = dup
226         color.red = [ color.red - 10000, 0 ].max
227         color.green = [ color.green - 10000, 0 ].max
228         color.blue = [ color.blue - 10000, 0 ].max
229         return color
230     end
231     def lighter
232         color = dup
233         color.red = [ color.red + 10000, 65535 ].min
234         color.green = [ color.green + 10000, 65535 ].min
235         color.blue = [ color.blue + 10000, 65535 ].min
236         return color
237     end
238 end
239
240 $color_red = Gdk::Color.new(65535, 0, 0)
241 $colors = [ Gdk::Color.new(0, 65535, 0),
242             Gdk::Color.new(0, 0, 65535),
243             Gdk::Color.new(65535, 65535, 0),
244             Gdk::Color.new(0, 65535, 65535),
245             Gdk::Color.new(65535, 0, 65535) ]
246
247 class Label
248     attr_accessor :color, :name, :button
249     def initialize(name)
250         @name = name
251     end
252 end
253
254 class InterruptedLoading < Exception
255     #- not a StandardError, not catched by a simple rescue
256 end
257
258 def show_pixbufs_present
259     if 3 <= $verbose_level
260         out = 'Full pixbufs ['
261         for entry in $allentries
262             out += entry.pixbuf_full_present? ? 'F' : '.'
263         end
264         msg 3, out + ']'
265     end
266 end
267
268 class Entry
269     @@max_width = nil
270     def Entry.thumbnails_height
271         return $config['thumbnails-height'].to_i
272     end
273
274     attr_accessor :path, :guipath, :type, :angle, :button, :image, :alignment, :removed, :labeled
275
276     def initialize(path, type, guipath)
277         @path = path
278         @type = type
279         @guipath = guipath
280         if @@max_width.nil?
281             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
282         end
283     end
284
285     def pixbuf_full_present?
286         return ! @pixbuf_full.nil?
287     end
288     def free_pixbuf_full
289         if @pixbuf_full.nil?
290             return false
291         else
292             msg 3, ">>> free_pixbuf_full #{path}"
293             @pixbuf_full = nil
294             return true
295         end
296     end
297
298     def pixbuf_main
299         Gtk.main_iteration while Gtk.events_pending?
300         width, height = $mainview.window.size 
301         width = MainView.get_usable_width(width)
302         height = MainView.get_usable_height(height)
303         if @pixbuf_main.nil? || width != @width || height != @height
304             @width = width
305             @height = height
306             load_into_pixbuf_full  #- make sure it is loaded
307             if @pixbuf_full.nil?
308                 return
309             end
310             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
311                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
312                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
313                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
314                 else
315                     @pixbuf_main = @pixbuf_full
316                 end
317             else
318                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
319                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
320                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
321                 else
322                     @pixbuf_main = @pixbuf_full
323                 end
324             end
325         end
326         return @pixbuf_main
327     end
328     def pixbuf_main_present?
329         return ! @pixbuf_main.nil?
330     end
331     def free_pixbuf_main
332         if @pixbuf_main.nil?
333             return false
334         else
335             msg 3, ">>> free_pixbuf_main #{path}"
336             @pixbuf_main = nil
337             return true
338         end
339     end
340
341     def pixbuf_thumbnail
342         Gtk.main_iteration while Gtk.events_pending?
343         if @pixbuf_thumbnail.nil?
344             if @pixbuf_main
345                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
346                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (Entry.thumbnails_height.to_f/@pixbuf_main.height), Entry.thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
347             else
348                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
349                 @pixbuf_thumbnail = load_into_pixbuf_at_size { |w, h|
350                     if @angle == 0
351                         if h > Entry.thumbnails_height
352                             [ w * Entry.thumbnails_height.to_f/h, Entry.thumbnails_height ]
353                         else
354                             [ w, h ]
355                         end
356                     else
357                         if w > Entry.thumbnails_height
358                             [ Entry.thumbnails_height, h * Entry.thumbnails_height.to_f/w ]
359                         else
360                             [ w, h ]
361                         end
362                     end
363                 }
364             end
365         end
366         return @pixbuf_thumbnail
367     end
368     def free_pixbuf_thumbnail
369         if @pixbuf_thumbnail.nil?
370             return false
371         else
372             msg 3, ">>> free_pixbuf_thumbnail #{path}"
373             @pixbuf_thumbnail = nil
374             return true
375         end
376     end
377
378     def outline_color
379         if removed
380             return $color_red
381         elsif labeled
382             return labeled.color
383         else
384             return nil
385         end
386     end
387
388     def show_bg
389         if outline_color.nil?
390             button.modify_bg(Gtk::StateType::NORMAL, nil)
391             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
392             button.modify_bg(Gtk::StateType::ACTIVE, nil)
393         else
394             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
395             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
396             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
397         end
398     end
399
400     def get_beautified_name
401         if type == 'image'
402             size = get_image_size(path)
403             return _("%s (%sx%s, %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
404                                              size[:x],
405                                              size[:y],
406                                              commify(file_size(path)/1024)]
407         else
408             return _("%s (video - %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
409                                              commify(file_size(path)/1024)]
410         end
411     end
412
413     private
414     def cleanup_dir(dir)
415         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
416         Dir.delete(dir)
417     end
418
419     def load_into_pixbuf_full
420         if @pixbuf_full.nil?
421             msg 3, ">>> load_into_pixbuf_full #{path}"
422             @pixbuf_full = load_into_pixbuf_at_size { |w, h|
423                 if @angle == 0
424                     if w > @@max_width
425                         #- save memory and speedup (+35%) loading 
426                         [ w * (factor = @@max_width.to_f/w), h * factor ]
427                     else
428                         [ w, h ]
429                     end
430                 else
431                     if h > @@max_width
432                         [ w * (factor = @@max_width.to_f/h), h * factor ]
433                     else
434                         [ w, h ]
435                     end
436                 end
437             }
438             show_pixbufs_present
439         end
440     end
441
442     def load_into_pixbuf_at_size(&specify_size)
443         pixbuf = nil
444         if @type == 'video'
445             tmp = Tempfile.new("boohclassifiertemp")
446             dest_dir = tmp.path
447             tmp.close!
448             Dir.mkdir(dest_dir)
449             orig_base = File.basename(path)
450             tmpdir = gen_video_thumbnail(path, false, 0)
451             if tmpdir.nil?
452                 return
453             end
454             image_path = "#{tmpdir}/00000001.jpg"
455         else
456             image_path = @path
457         end
458         if @angle.nil?
459             if @type == 'image'
460                 @angle = guess_rotate(image_path)
461             else
462                 @angle = 0
463             end
464         end
465         begin
466             #- use a pixbuf loader and trigger Gtk.main_iteration on each chunk if needed, to keep the UI responsive even
467             #- if loaded pictures are several MBs large
468             loader = Gdk::PixbufLoader.new
469             loader.signal_connect('size-prepared') { |l, w, h|
470                 r = specify_size.call(w, h)
471                 #msg 3, "specified sizes: #{r[0]} #{r[1]}"
472                 loader.set_size(*specify_size.call(w, h))
473             }
474             id = loader.signal_connect('area-prepared') { pixbuf = loader.pixbuf }
475             if ! loader.load_not_freezing_ui(image_path, id)
476                 #- interrupted
477                 raise InterruptedLoading
478             end
479             if pixbuf.nil?
480                 raise "Loaded pixbuf nil - #{path} #{image_path}"
481             end
482         rescue
483             msg 0, "Cannot load #{image_path}: #{$!}"
484             return
485         ensure
486             if @type == 'video'
487                 File.delete(image_path)
488                 Dir.rmdir(tmpdir)
489             end
490         end
491         if pixbuf
492             if @angle != 0
493                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
494                 pixbuf = rotate_pixbuf(pixbuf, @angle)
495             end
496         end
497         if @type == 'video'
498             cleanup_dir(dest_dir)
499         end
500         return pixbuf
501     end
502
503     def to_s
504         @path
505     end
506 end
507
508 $allentries = []
509
510 def gc
511     start = Time.now
512     GC.start
513     msg 3, "GC in #{Time.now - start} s"
514 end
515
516 def free_cache_if_needed
517     i = $allentries.index($mainview.get_shown_entry)
518     return if i.nil?
519     if get_mem > $config['cache-memory-use-figure']
520         msg 3, "too much RSS, triggering GC"
521         gc
522     end
523     if get_mem < $config['cache-memory-use-figure']
524         return
525     end
526     msg 3, "too much RSS, freeing some cache"
527     start = Time.now
528     freed = 0
529     ($allentries.size - 1).downto($config['preload-distance'].to_i + 1) { |j|
530         index = i + j
531         if i + j < $allentries.size
532             $allentries[i + j].free_pixbuf_full
533             if $allentries[i + j].free_pixbuf_main
534                 freed += 1
535             end
536         end
537         if i - j >= 0
538             $allentries[i - j].free_pixbuf_full
539             if $allentries[i - j].free_pixbuf_main
540                 freed += 1
541             end
542         end
543         if freed >= 10
544             gc
545             if get_mem < $config['cache-memory-use-figure'] * 3 / 4
546                 msg 3, "RSS down enough - freeing done in #{Time.now - start} s"
547                 show_pixbufs_present
548                 return
549             end
550             freed = 0
551         end
552     }
553     msg 3, "freeing done in #{Time.now - start} s"
554     show_pixbufs_present
555 end
556
557 def run_preloader_real
558     msg 3, "*** >> main preloading triggered..."
559     if $mainview.get_shown_entry
560         free_cache_if_needed
561         if $config['preload-distance'].to_i == 0
562             return true
563         end
564         index = $allentries.index($mainview.get_shown_entry)
565         index_right = index
566         index_left = index
567         loaded_right = 0
568         loaded_left = 0
569         right_done = false
570         left_done = false
571         loaded = []
572         while ! right_done || ! left_done
573             if ! right_done
574                 index_right += 1
575                 while index_right < $allentries.size && ! visible($allentries[index_right])
576                     index_right += 1
577                 end
578                 if index_right == $allentries.size
579                     right_done = true
580                 else
581                     if ! $allentries[index_right].pixbuf_main_present?
582                         msg 3, "preloading #{$allentries[index_right].path}"
583                         begin
584                             $allentries[index_right].pixbuf_main
585                         rescue InterruptedLoading
586                             msg 3, "*** >>>> interrupted, rerun"
587                             return false
588                         end
589                     end
590                     loaded << index_right
591                     loaded_right += 1
592                     if loaded_right == $config['preload-distance'].to_i
593                         right_done = true
594                     end
595                 end
596             end
597
598             if ! left_done
599                 index_left -= 1
600                 while index_left >= 0 && ! visible($allentries[index_left])
601                     index_left -= 1
602                 end
603                 if index_left == -1
604                     left_done = true
605                 else
606                     if ! $allentries[index_left].pixbuf_main_present?
607                         msg 3, "preloading #{$allentries[index_left].path}"
608                         begin
609                             $allentries[index_left].pixbuf_main
610                         rescue InterruptedLoading
611                             msg 3, "*** >>>> interrupted, rerun"
612                             return false
613                         end
614                     end
615                     loaded << index_left
616                     loaded_left += 1
617                     if loaded_left == $config['preload-distance'].to_i
618                         left_done = true
619                     end
620                 end
621             end
622
623             #- in case just loaded another directory
624             if $preloader_force_exit
625                 $preloader_force_exit = false
626                 return true
627             end
628             #- in case moved fast
629             if index != $allentries.index($mainview.get_shown_entry)
630                 msg 3, "*** >>>> moved already, rerun"
631                 return false
632             end
633         end
634     end
635     msg 3, "*** << main preloading finished"
636     return true
637 end
638
639 def run_preloader
640     if ! $preloader_allowed
641         msg 3, "*** preloader not yet allowed"
642         return
643     end
644
645     if $preloader_running
646         msg 3, "preloader already running"
647         return
648     end
649     msg 3, "run preloader"
650     $preloader_running = true
651     Gtk.idle_add {
652         msg 3, "begin preloader from timeout "
653         if run_preloader_real
654             $preloader_running = false
655             false
656         else
657             true
658         end
659     }
660 end
661
662 class MainView < Gtk::DrawingArea
663
664     @@borders_thickness = 5
665     @@borders_length = 25
666     @@redraw_pending = nil
667
668     def MainView.borders_thickness
669         return @@borders_thickness
670     end
671
672     def MainView.get_usable_width(available_width)
673         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
674     end
675
676     def MainView.get_usable_height(available_height)
677         return available_height - @@borders_thickness * 2
678     end
679     
680     def initialize
681         super()
682         signal_connect('expose-event') { draw }
683         signal_connect('configure-event') { update_shown }
684     end
685
686     def try_show_entry(entry)
687         if entry && entry.button
688             if entry.button.has_focus?
689                 redraw
690             else
691                 entry.button.grab_focus
692             end
693         end
694     end
695
696     def set_shown_entry(entry)
697         t1 = Time.now
698         if entry && entry == @entry
699             return
700         end
701         if entry && ! entry.button
702             #- not loaded yet
703             return
704         end
705         @entry = entry
706         @entry and msg 3, "*** set entry to #{@entry.path}"
707         redraw
708         msg 3, "entry shown in: #{Time.now - t1} s"
709     end
710
711     def get_shown_entry
712         return @entry
713     end
714
715     def show_next_entry(entry)
716         index = $allentries.index(entry)
717         if index < $allentries.size - 1
718             index += 1
719         end
720         while index < $allentries.size - 1 && $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible?
721             index += 1
722         end
723         while $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible? && index > 0
724             index -= 1
725         end
726         if index < $allentries.size && $allentries[index] && $allentries[index].button && $allentries[index].button.visible?
727             try_show_entry($allentries[index])
728         end
729     end
730
731     def redraw
732         if @@redraw_pending
733             msg 3, "redraw already pending"
734             return
735         end
736         msg 3, "redraw"
737         @@redraw_pending = Gtk.idle_add {
738             msg 3, "begin redraw from timeout "
739             begin
740                 msg 3, "try redraw from timeout"
741                 redraw_real
742                 @@redraw_pending = nil
743                 run_preloader
744                 false
745             rescue InterruptedLoading
746                 msg 3, "interrupted, will retry"
747                 true
748             end
749         }
750     end
751
752     def redraw_real
753         @entry and sb_msg(_("Selected %s") % @entry.get_beautified_name)
754         if ! update_shown
755             return
756         end
757         w, h = window.size
758         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
759         window.clear
760         draw
761         window.end_paint
762     end
763
764     def update_shown
765         if @entry
766             msg 3, "################################################ trying to show #{@entry.path}"
767             pixbuf = @entry.pixbuf_main
768             if pixbuf
769                 @pixbuf = pixbuf
770                 width, height = window.size 
771                 @xpos = (width - @pixbuf.width)/2
772                 @ypos = (height - @pixbuf.height)/2
773                 return true
774             else
775                 return false
776             end
777         else
778             @pixbuf = nil
779             return true
780         end
781     end
782
783     def draw
784         if @pixbuf
785             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
786             if @entry && @entry.type == 'video'
787                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
788             end
789             if @entry && ! @entry.outline_color.nil?
790                 gc = Gdk::GC.new(window)
791                 colormap.alloc_color(@entry.outline_color, false, true)
792                 gc.set_foreground(@entry.outline_color)
793                 if @entry.type == 'video'
794                     xleft = @xpos - $videoborder_pixbuf.width
795                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
796                 else
797                     xleft = @xpos
798                     xright = @xpos + @pixbuf.width
799                 end
800                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
801                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
802                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
803                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
804                                                [xleft - @@borders_thickness, @ypos - 1],
805                                                [xleft - 1, @ypos - 1],
806                                                [xleft - 1, @ypos + @pixbuf.height + 1],
807                                                [xright + 1, @ypos + @pixbuf.height + 1],
808                                                [xright + 1, @ypos - 1],
809                                                [xleft - @@borders_thickness, @ypos - 1]])
810             end
811         end
812     end
813 end
814
815 def autoscroll_if_needed(button, center)
816     xpos_left = button.allocation.x
817     xpos_right = button.allocation.x + button.allocation.width
818     hadj = $imagesline_sw.hadjustment
819     current_minx_visible = hadj.value
820     current_maxx_visible = hadj.value + hadj.page_size
821     if ! center
822         if xpos_left < current_minx_visible
823             #- autoscroll left
824             newval = hadj.value - (current_minx_visible - xpos_left)
825             hadj.value = newval
826         elsif xpos_right > current_maxx_visible
827             #- autoscroll right
828             newval = hadj.value + (xpos_right - current_maxx_visible)
829             if newval > hadj.upper - hadj.page_size
830                 newval = hadj.upper - hadj.page_size
831             end
832             hadj.value = newval
833         end
834     else
835         hadj.value = clamp((xpos_left + xpos_right) / 2 - hadj.page_size / 2, 0, hadj.upper - hadj.page_size)
836     end
837 end
838
839 def show_popup(parent, msg, *options)
840     dialog = Gtk::Dialog.new
841     if options[0]
842         options = options[0]
843     else
844         options = {}
845     end
846     if options[:title]
847         dialog.title = options[:title]
848     else
849         dialog.title = utf8(_("Booh message"))
850     end
851     lbl = Gtk::Label.new
852     if options[:nomarkup]
853         lbl.text = msg
854     else
855         lbl.markup = msg
856     end
857     if options[:centered]
858         lbl.set_justify(Gtk::Justification::CENTER)
859     end
860     if options[:selectable]
861         lbl.selectable = true
862     end
863     if options[:topwidget]
864         dialog.vbox.add(options[0][:topwidget])
865     end
866     if options[:scrolled]
867         sw = Gtk::ScrolledWindow.new(nil, nil)
868         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
869         sw.add_with_viewport(lbl)
870         dialog.vbox.add(sw)
871         dialog.set_default_size(500, 600)
872     else
873         dialog.vbox.add(lbl)
874         dialog.set_default_size(200, 120)
875     end
876     if options[:bottomwidget]
877         dialog.vbox.add(options[:bottomwidget])
878     end
879     if options[:okcancel]
880         cancel = dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
881         if ! options[:bottomwidget]
882             cancel.grab_focus
883         end
884         dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
885     else
886         ok = dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK).grab_focus
887         if ! options[:bottomwidget]
888             ok.grab_focus
889         end
890     end
891
892     if options[:pos_centered]
893         dialog.window_position = Gtk::Window::POS_CENTER
894     else
895         dialog.window_position = Gtk::Window::POS_MOUSE
896     end
897
898     if options[:linkurl]
899         linkbut = Gtk::Button.new('')
900         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
901         linkbut.signal_connect('clicked') {
902             open_url(options[0][:linkurl] + '/index.html')
903             dialog.response(Gtk::Dialog::RESPONSE_OK)
904             set_mousecursor_normal
905         }
906         linkbut.relief = Gtk::RELIEF_NONE
907         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
908         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
909         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
910     end
911
912     dialog.show_all
913
914     if options[:stuff_connector]
915         options[:stuff_connector].call({ :dialog => dialog })
916     end
917                                         
918     if !options[:not_transient]
919         dialog.transient_for = parent
920         dialog.run { |response|
921             if options[:data_getter]
922                 options[:data_getter].call
923             end
924             dialog.destroy
925             if options[:okcancel]
926                 return response == Gtk::Dialog::RESPONSE_OK
927             end
928         }
929     else
930         dialog.signal_connect('response') { dialog.destroy }
931     end
932 end
933
934 def view_entry(entry)
935     if entry.type == 'image'
936         show_popup($main_window,
937                    utf8(`exif -m '#{entry.path}'`),
938                    { :title => utf8(_("EXIF data of %s") % File.basename(entry.path)), :nomarkup => true, :scrolled => true, :not_transient => true })
939     else
940         cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
941         msg 2, cmd
942         system(cmd)
943     end
944 end
945
946 def thumbnail_keypressed(entry, event)
947     if event.state & Gdk::Window::MOD1_MASK != 0
948         #- ALT pressed: Alt-Left and Alft-Right rotate
949         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
950             if event.keyval == Gdk::Keyval::GDK_Left
951                 entry.angle = (entry.angle - 90) % 360
952             else
953                 entry.angle = (entry.angle + 90) % 360
954             end
955             entry.free_pixbuf_full
956             entry.free_pixbuf_main
957             entry.free_pixbuf_thumbnail
958             show_pixbufs_present
959             $mainview.redraw
960             entry.image.pixbuf = entry.pixbuf_thumbnail
961             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
962                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
963             end
964         end
965
966     elsif event.state & Gdk::Window::CONTROL_MASK != 0
967         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo, Ctrl-space for recentre
968         if event.keyval == Gdk::Keyval::GDK_z
969             perform_undo
970         end
971         if event.keyval == Gdk::Keyval::GDK_r
972             perform_redo
973         end
974         if event.keyval == Gdk::Keyval::GDK_space
975             shown = $mainview.get_shown_entry
976             shown and autoscroll_if_needed(shown.button, true)
977         end
978
979     else
980         removed_before = entry.removed
981         label_before = entry.labeled
982
983         if event.keyval == Gdk::Keyval::GDK_Delete
984             if ! FileTest.writable?(entry.path)
985                 show_popup($main_window, utf8(_("Notice: no write access to '%s', permission will be denied at execute step.") % entry.path))
986             end
987             entry.removed = true
988             entry.labeled = nil
989             entry.show_bg
990             update_visibility(entry)
991             $mainview.show_next_entry(entry)
992
993             save_undo(_("set for removal"),
994                       proc {
995                           entry.removed = removed_before
996                           entry.labeled = label_before
997                           entry.show_bg
998                           update_visibility(entry)
999                           if entry.button.visible?
1000                               $mainview.try_show_entry(entry)
1001                           end
1002                           proc {
1003                               entry.removed = true
1004                               entry.labeled = nil
1005                               entry.show_bg
1006                               update_visibility(entry)
1007                               if entry.button.visible?
1008                                   $mainview.try_show_entry(entry)
1009                               end
1010                           }
1011                       })
1012
1013         elsif event.keyval == Gdk::Keyval::GDK_space
1014             if entry.labeled
1015                 msg = _("Cleared label")
1016             elsif entry.removed
1017                 msg = _("Cleared set for removal")
1018             end
1019             entry.removed = false
1020             entry.labeled = nil
1021             entry.show_bg
1022             $mainview.show_next_entry(entry)
1023
1024             save_undo(msg,
1025                       proc {
1026                           entry.removed = removed_before
1027                           entry.labeled = label_before
1028                           entry.show_bg
1029                           $mainview.try_show_entry(entry)
1030                           proc {
1031                               entry.removed = false
1032                               entry.labeled = nil
1033                               entry.show_bg
1034                               $mainview.try_show_entry(entry)
1035                           }
1036                       })
1037
1038         elsif event.keyval == Gdk::Keyval::GDK_Return
1039             view_entry(entry)
1040
1041         elsif event.keyval == Gdk::Keyval::GDK_Home
1042             index = 0
1043             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1044                 index += 1
1045             end
1046             if $allentries[index] && $allentries[index].button
1047                 $allentries[index].button.grab_focus
1048             end
1049
1050         elsif event.keyval == Gdk::Keyval::GDK_End
1051             index = $allentries.size - 1
1052             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1053                 index += 1
1054             end
1055             if $allentries[index] && $allentries[index].button
1056                 $allentries[index].button.grab_focus
1057             end
1058
1059         else
1060             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
1061             if char =~ /^[a-zA-z0-9]$/
1062                 label = $labels[char]
1063                 
1064                 if label.nil?
1065                     vb = Gtk::VBox.new(false, 0)
1066                     vb.pack_start(labelentry = Gtk::Entry.new.set_text(char), false, false)
1067                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
1068                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
1069                     bt.signal_connect('color-set') { color = bt.color }
1070                     text = nil
1071                     labelentry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
1072                         while $labels.has_key?(labelentry.text[0,1])
1073                             labelentry.text = labelentry.text.sub(/./, '')
1074                         end
1075                     }
1076                     if show_popup($main_window,
1077                                   utf8(_("You typed the text character '%s', which is not associated with a label.\nType in the full name of the label below to create a new one.")) % char,
1078                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = labelentry.text },
1079                                     :stuff_connector => proc { |stuff| labelentry.select_region(0, 0)
1080                                                                        labelentry.position = -1
1081                                                                        labelentry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
1082                         if text.length > 0
1083                             char = text[0,1]  #- in case it changed
1084                             label = Label.new(text)
1085                             label.color = color
1086                             $labels[char] = label
1087                             $ordered_labels << label
1088                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
1089                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1090                             label.button.active = true
1091                             label.button.signal_connect('toggled') { update_all_visibilities }
1092                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
1093                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
1094                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
1095                         end
1096                     end
1097                 end
1098
1099                 if label
1100                     entry.removed = false
1101                     entry.labeled = label
1102                     entry.show_bg
1103                     update_visibility(entry)
1104                     $mainview.show_next_entry(entry)
1105
1106                     save_undo(_("set label"),
1107                               proc {
1108                                   entry.removed = removed_before
1109                                   entry.labeled = label_before
1110                                   entry.show_bg
1111                                   update_visibility(entry)
1112                                   if entry.button.visible?
1113                                       $mainview.try_show_entry(entry)
1114                                   end
1115                                   proc {
1116                                       entry.removed = false
1117                                       entry.labeled = label
1118                                       entry.show_bg
1119                                       update_visibility(entry)
1120                                       if entry.button.visible?
1121                                           $mainview.try_show_entry(entry)
1122                                       end
1123                                   }
1124                               })
1125                 end
1126             end
1127         end
1128     end
1129 end
1130
1131 def sb_msg(msg)
1132     $statusbar.pop(0)
1133     if msg
1134         $statusbar.push(0, utf8(msg))
1135     end
1136 end
1137
1138 def show_entry(entry, i, tips)
1139     #- scope entry
1140     #msg 3, "showing entry #{entry}"
1141     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
1142     if entry.type == 'video'
1143         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1144                                            pack_start(entry.image).
1145                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
1146         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1147         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1148     else
1149         entry.button = Gtk::Button.new.add(entry.image)
1150     end
1151     tips.set_tip(entry.button, entry.get_beautified_name, nil)
1152     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
1153     entry.button.signal_connect('clicked') {
1154         shown = $mainview.get_shown_entry
1155         if shown != entry
1156             shown and shown.alignment.set(0.5, 1, 0, 0)
1157             entry.alignment.set(0.5, 0, 0, 0)
1158             autoscroll_if_needed(entry.button, false)
1159             $mainview.set_shown_entry(entry)
1160         end
1161     }
1162     entry.button.signal_connect('button-press-event') { |w, event|
1163         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
1164             video_view(entry)
1165         end
1166     }
1167     entry.button.signal_connect('focus-in-event') { entry.button.clicked }
1168     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
1169     if i == 0
1170         entry.button.grab_focus
1171     end
1172     update_visibility(entry)
1173 end
1174
1175 def show_entries(allentries)
1176     sb_msg(_("Loading images..."))
1177     $loading_progressbar.fraction = 0
1178     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
1179     $loading_progressbar.show
1180     t1 = Time.now
1181     total_loaded_files = 0
1182     total_loaded_size = 0
1183     i = 0
1184     tips = Gtk::Tooltips.new
1185     while i < allentries.size
1186         begin
1187             entry = allentries[i]
1188             if i == 0
1189                 loaded_pixbuf = entry.pixbuf_main
1190             else
1191                 loaded_pixbuf = entry.pixbuf_thumbnail
1192             end
1193         rescue InterruptedLoading
1194             redo
1195         end
1196
1197         if $allentries != allentries
1198             #- loaded another directory while this one was not yet finished
1199             msg 3, "allentries differ, stopping this deprecated load"
1200             return
1201         end
1202
1203         if loaded_pixbuf
1204             show_entry(entry, i, tips)
1205             if $allentries != allentries
1206                 #- loaded another directory while this one was not yet finished
1207                 msg 3, "allentries differ, stopping this deprecated load"
1208                 return
1209             end
1210
1211             total_loaded_size += file_size(entry.path)
1212             total_loaded_files += 1
1213             i += 1
1214             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1215                 #- when we're at preload distance, begin preloading to preload distance
1216                 begin
1217                     allentries[i - $config['preload-distance'].to_i].pixbuf_main
1218                 rescue InterruptedLoading
1219                 end
1220             end
1221             if i == $config['preload-distance'].to_i * 2 + 1
1222                 #- when we're after double preload distance, activate normal preloading
1223                 $preloader_allowed = true
1224             end
1225             
1226         else
1227             allentries.delete_at(i)
1228         end
1229         $loading_progressbar.fraction = i.to_f / allentries.size
1230         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1231         if $quit
1232             return
1233         end
1234         if i % 25 == 0
1235             gc
1236         end
1237     end
1238     $preloader_allowed = true
1239     if i <= $config['preload-distance'].to_i * 2
1240         #- not yet preloaded correctly
1241         run_preloader
1242     end
1243     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1244     $loading_progressbar.hide
1245     $execute.sensitive = true
1246 end
1247
1248 def reset_all
1249     reset_labels
1250     reset_thumbnails
1251     $mainview.set_shown_entry(nil)
1252     sb_msg(nil)
1253     $preloader_allowed = false
1254     $execute.sensitive = false
1255 end
1256
1257 def open_dir(*paths)
1258     #- remove visual stuff, so that user will see something is happening
1259     reset_all
1260     sb_msg(_("Scanning source directory... %s") % "")
1261     Gtk.main_iteration while Gtk.events_pending?
1262
1263     for path in paths
1264         path = File.expand_path(path.sub(%r|/$|, ''))
1265         $workingdir = path
1266         entries = []
1267         if File.directory?(path)
1268             examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
1269             #- validate first
1270             examined_dirs.each { |dir|
1271                 if dir =~ /'/
1272                     return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1273                 end
1274                 Dir.entries(dir).each { |file|
1275                     if file =~ /'/ && type = entry2type(file) && type == 'video'
1276                         return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1277                     end
1278                 }
1279             }
1280             
1281             #- scan for populate second
1282             examined_dirs.each { |dir|
1283                 if File.basename(dir) =~ /^\./
1284                     msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1285                     next
1286                 end
1287                 entries += Dir.entries(dir).collect { |file| File.join(dir, file) }
1288                 sb_msg(_("Scanning source directory... %s") % (_("%d entries found") % entries.size))
1289                 Gtk.main_iteration while Gtk.events_pending?
1290             }
1291
1292         else
1293             entries << path
1294         end
1295
1296         if $sort_by_exif_date
1297             dates = {}
1298             entries.each { |file|
1299                 date_time = Exif.datetimeoriginal(file)
1300                 if ! date_time.nil?
1301                     dates[file] = date_time
1302                 end
1303             }
1304             entries = smartsort(entries, dates)
1305         else
1306             entries.sort!
1307         end
1308         entries.each { |file|
1309             type = entry2type(file)
1310             if type
1311                 if File.directory?(path)
1312                     $allentries << Entry.new(file, type, file[path.length + 1 .. -1])
1313                 else
1314                     $allentries << Entry.new(file, type, file)
1315                 end
1316             end
1317         }
1318     end
1319     return nil
1320 end
1321
1322 def open_dir_popup
1323     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1324                                     nil,
1325                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1326                                     nil,
1327                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1328     fc.transient_for = $main_window
1329     if $workingdir
1330         fc.current_folder = $workingdir
1331     end
1332     ok = false
1333     load = false
1334     while !ok
1335         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1336             msg = open_dir(fc.filename)
1337             if msg
1338                 show_popup(fc, msg)
1339                 ok = false
1340             else
1341                 ok = true
1342                 load = true
1343             end
1344         else
1345             ok = true
1346         end
1347     end
1348     fc.destroy
1349     if load
1350         show_entries($allentries)
1351     end
1352 end
1353
1354 def try_quit(*options)
1355     if ! $allentries.detect { |e| e.removed || e.labeled } || show_popup($main_window,
1356                                                                          utf8(_("You have not executed the classification. Are you sure you want to quit?")),
1357                                                                          { :okcancel => true })
1358         Gtk.main_quit
1359         $quit = true
1360         return false
1361     else
1362         return true
1363     end
1364 end
1365
1366 def execute
1367     dialog = Gtk::Dialog.new
1368     dialog.title = utf8(_("Booh message"))
1369
1370     vb1 = Gtk::VBox.new(false, 5)
1371     label = Gtk::Label.new.set_markup(utf8(_("You're about to <b>execute</b> actions on the marked images.\nPlease confirm below the actions. You cannot undo this operation!")))
1372     vb1.pack_start(label, false, false)
1373
1374     lastpath = $workingdir
1375
1376     table = Gtk::Table.new(0, 0, false)
1377     table.set_row_spacings(5)
1378     table.set_column_spacings(5)
1379     table.attach(Gtk::Label.new.set_markup(utf8(_("<b>Label name:</b>"))).set_justify(Gtk::Justification::CENTER), 0, 1, 0, 1, Gtk::FILL, Gtk::FILL, 5, 0)
1380     table.attach(Gtk::Label.new.set_markup(utf8(_("<b>Amount of pictures:</b>"))).set_justify(Gtk::Justification::CENTER), 1, 2, 0, 1, Gtk::FILL, Gtk::FILL, 5, 0)
1381     table.attach(Gtk::Label.new.set_markup(utf8(_("<b>Pictures examples:</b>"))).set_justify(Gtk::Justification::CENTER), 2, 3, 0, 1, Gtk::FILL, Gtk::FILL, 5, 0)
1382     table.attach(Gtk::Label.new.set_markup(utf8(_("<b>Action to perform:</b>"))).set_justify(Gtk::Justification::CENTER), 3, 4, 0, 1, Gtk::FILL, Gtk::FILL, 5, 0)
1383     add_row = proc { |row, name, color, truthproc, normal|
1384         table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(Gtk::EventBox.new.add(Gtk::Label.new.set_markup(name)).modify_bg(Gtk::StateType::NORMAL, color)),
1385                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1386         counter = 0
1387         examples = Gtk::HBox.new(false, 5)
1388         $allentries.each { |entry|
1389             if truthproc.call(entry)
1390                 counter += 1
1391                 if counter < 4
1392                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1393                     if entry.type == 'video'
1394                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1395                                                   pack_start(thumbnail).
1396                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1397                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1398                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1399                     end
1400                     examples.pack_start(thumbnail, false, false)
1401                 elsif counter == 4
1402                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1403                 end
1404             end
1405         }
1406         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1407         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1408
1409         if counter == 0
1410             return {}
1411         end
1412
1413         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1414         iter = combostore.append
1415         if normal
1416             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1417             iter[1] = utf8(_("Copy to:"))
1418             iter = combostore.append
1419             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1420             iter[1] = utf8(_("Move to:"))
1421         else
1422             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1423             iter[1] = utf8(_("Permanently remove"))
1424         end
1425         iter = combostore.append
1426         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1427         iter[1] = utf8(_("Do nothing"))
1428         combo = Gtk::ComboBox.new(combostore)
1429         combo.active = 0
1430         renderer = Gtk::CellRendererPixbuf.new
1431         combo.pack_start(renderer, false)
1432         combo.set_attributes(renderer, :pixbuf => 0)
1433         renderer = Gtk::CellRendererText.new
1434         combo.pack_start(renderer, true)
1435         combo.set_attributes(renderer, :text => 1)
1436
1437         if normal
1438             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1439             pathbutton.signal_connect('clicked') {
1440                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1441                                                 nil,
1442                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1443                                                 nil,
1444                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1445                 fc.transient_for = dialog
1446                 if lastpath
1447                     fc.current_folder = lastpath
1448                 end
1449                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1450                     pathlabel.text = fc.filename
1451                     pathlabel.set_alignment(0, 0.5)
1452                 end
1453                 lastpath = fc.filename
1454                 fc.destroy
1455             }
1456             combo.signal_connect('changed') {
1457                 pathbutton.sensitive = combo.active <= 1
1458             }
1459             vb = Gtk::VBox.new(false, 5)
1460             vb.pack_start(combo, false, false)
1461             vb.pack_start(pathbutton, false, false)
1462             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1463             { :combo => combo, :pathlabel => pathlabel }
1464         else
1465             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1466             { :combo => combo }
1467         end
1468     }
1469     stuff = {}
1470     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1471     $ordered_labels.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1472     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1473
1474     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1475     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1476     check_removal = Gtk::CheckButton.new(utf8(_("I have noticed I am about to permanently remove the %d above mentioned pictures (total %s kB).") % [ toremove_amount, toremove_size ]))
1477     if toremove_amount > 0
1478         vb1.pack_start(check_removal, false, false)
1479         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1480             check_removal.sensitive = widget.active == 0
1481         }
1482     end
1483
1484     dialog.vbox.add(vb1)
1485
1486     dialog.set_default_size(800, 600)
1487     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1488     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1489     dialog.window_position = Gtk::Window::POS_MOUSE
1490     dialog.transient_for = $main_window
1491
1492     dialog.show_all
1493
1494     while true
1495         dialog.run { |response|        
1496             if response == Gtk::Dialog::RESPONSE_OK
1497                 problem = false
1498                 if toremove_amount > 0 && stuff['toremove'][:combo].active == 0
1499                     if ! check_removal.active?
1500                         show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1501                         problem = true
1502                         break
1503                     end
1504                     $allentries.each { |entry|
1505                         if entry.removed
1506                             if ! FileTest.writable?(entry.path)
1507                                 show_popup(dialog, utf8(_("Sorry, permission denied to remove '%s'.") % [ entry.path ]))
1508                                 problem = true
1509                                 break
1510                             end
1511                         end
1512                     }
1513                 end
1514                 label2entries = {}
1515                 $labels.values.each { |label| label2entries[label] = [] }
1516                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1517                 stuff.keys.each { |key|
1518                     if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1519                         destination = stuff[key][:pathlabel].text
1520                         if destination[0] != ?/
1521                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1522                             problem = true
1523                             break
1524                         end
1525                         begin
1526                             Dir.mkdir(destination)
1527                         rescue Errno::EEXIST
1528                         end
1529                         begin
1530                             st = File.stat(destination)
1531                         rescue
1532                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1533                             problem = true
1534                             break
1535                         end
1536                         if ! st.directory? || ! st.writable?
1537                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1538                             problem = true
1539                             break
1540                         end
1541                         label2entries[key].each { |entry|
1542                             begin
1543                                 File.stat(File.join(destination, File.basename(entry.path)))
1544                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1545                                 problem = true
1546                                 break
1547                             rescue
1548                             end
1549                         }
1550                         if stuff[key][:combo].active == 1
1551                             label2entries[key].each { |entry|
1552                                 if ! FileTest.writable?(entry.path)
1553                                     show_popup(dialog, utf8(_("Sorry, permission denied to move '%s'.") % [ entry.path ]))
1554                                     problem = true
1555                                     break
1556                                 end
1557                             }
1558                         end
1559                         if problem
1560                             break
1561                         end
1562                     end
1563                 }
1564                 if ! problem
1565                     begin
1566                         moved = 0
1567                         copied = 0
1568                         stuff.keys.each { |key|
1569                             if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1570                                 destination = stuff[key][:pathlabel].text
1571                                 label2entries[key].each { |entry|
1572                                     if stuff[key][:combo].active == 0
1573                                         system("cp -dp '#{entry.path}' '#{destination}'") or raise "failed to copy '#{entry.path}'"
1574                                         copied += 1
1575                                     elsif stuff[key][:combo].active == 1
1576                                         system("mv '#{entry.path}' '#{destination}'") or raise "failed to move '#{entry.path}'"
1577                                         moved += 1
1578                                     end
1579                                 }
1580                             end
1581                         }
1582                         removed = 0
1583                         if stuff['toremove'][:combo] && stuff['toremove'][:combo].active == 0
1584                             $allentries.each { |entry|
1585                                 if entry.removed
1586                                     File.delete(entry.path)
1587                                     removed += 1
1588                                 end
1589                             }
1590                         end
1591                     rescue
1592                         msg 1, "woops: #{$!}"
1593                         show_popup(dialog, utf8(_("Unexpected error: '%s'.") % $!))
1594                     end
1595                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1596                     dialog.destroy
1597                     reset_all
1598                     return
1599                 end
1600
1601             else
1602                 dialog.destroy
1603                 return
1604             end
1605         }
1606     end
1607 end
1608
1609 def visible(entry)
1610     if ! entry
1611         #- just "executed"
1612         return
1613     end
1614     if ! entry.button
1615         #- not yet loaded
1616         return
1617     end
1618     if entry.labeled
1619         if entry.labeled.button.active?
1620             return true
1621         else
1622             return false
1623         end
1624     elsif entry.removed
1625         if $toremove_button.active?
1626             return true
1627         else
1628             return false
1629         end
1630     else
1631         if $unlabelled_button.active?
1632             return true
1633         else
1634             return false
1635         end
1636     end
1637 end
1638
1639 def update_visibility(entry)
1640     v = visible(entry)
1641     if v.nil?
1642         return
1643     end
1644     if v
1645         entry.button.show
1646     else
1647         entry.button.hide
1648     end
1649 end
1650         
1651 def update_all_visibilities_aux
1652     $allentries.each { |entry|
1653         update_visibility(entry)
1654     }
1655     shown = $mainview.get_shown_entry
1656     shown or return
1657     while shown.button && ! shown.button.visible? && shown != $allentries.last
1658         shown = $allentries[$allentries.index(shown) + 1]
1659     end 
1660     if shown.button && shown.button.visible?
1661         shown.button.grab_focus
1662         return
1663     end
1664     $allentries.reverse.each { |entry|
1665         if entry.button && entry.button.visible?
1666             entry.button.grab_focus
1667             return
1668         end
1669     }
1670 end
1671
1672 def update_all_visibilities
1673     update_all_visibilities_aux
1674     Gtk.main_iteration while Gtk.events_pending?
1675     shown = $mainview.get_shown_entry
1676     shown and autoscroll_if_needed(shown.button, false)
1677 end
1678
1679
1680 def preferences
1681     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1682                              $main_window,
1683                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1684                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1685                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1686
1687     tooltips = Gtk::Tooltips.new
1688
1689     table_y = 0
1690
1691     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1692     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1693                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1694     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1695                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1696     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1697
1698     table_y += 1
1699     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1700                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1701     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1702                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1703     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1704
1705     table_y += 1
1706     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Thumbnails height: ")))),
1707                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1708     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(thumbnails_height = Gtk::SpinButton.new(32, 256, 16).set_value($config['thumbnails-height'].to_i)),
1709                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1710     tooltips.set_tip(thumbnails_height, utf8(_("The desired height of the thumbnails in the thumbnails line of the bottom")), nil)
1711
1712     table_y += 1
1713     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1714                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1715     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1716                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1717     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1718
1719     table_y += 1
1720     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1721                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1722     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1723                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1724     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1725                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1726                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1727     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1728     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1729     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1730                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1731                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1732     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1733     cache_memfree_radio.signal_connect('toggled') {
1734         if cache_memfree_radio.active?
1735             cache_memfree_label.sensitive = true
1736             cache_specify_label.sensitive = false
1737         else
1738             cache_specify_label.sensitive = true
1739             cache_memfree_label.sensitive = false
1740         end
1741     }
1742     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1743     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1744         cache_memfree_spin.value = $1.to_i
1745     else
1746         cache_specify_spin.value = $config['cache-memory-use'].to_i / 1024
1747     end
1748
1749     table_y += 1
1750     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1751                0, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1752     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1753     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1754
1755     dialog.vbox.show_all
1756     dialog.run { |response|
1757         if response == Gtk::Dialog::RESPONSE_OK
1758             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1759             $config['browser'] = from_utf8(browser_entry.text)
1760             $config['thumbnails-height'] = thumbnails_height.value
1761             $config['preload-distance'] = preload_distance.value
1762             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1763             if cache_memfree_radio.active?
1764                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1765             else
1766                 $config['cache-memory-use'] = cache_specify_spin.value.to_i * 1024
1767             end
1768             set_cache_memory_use_figure
1769         end
1770     }
1771     dialog.destroy
1772 end
1773
1774 def perform_undo
1775     if $undo_mb.sensitive?
1776         $redo_mb.sensitive = true
1777         if not more_undoes = UndoHandler.undo($statusbar)
1778             $undo_mb.sensitive = false
1779         end
1780     end
1781 end
1782
1783 def perform_redo
1784     if $redo_mb.sensitive?
1785         $undo_mb.sensitive = true
1786         if not more_redoes = UndoHandler.redo($statusbar)
1787             $redo_mb.sensitive = false
1788         end
1789     end
1790 end
1791
1792 def create_menubar    
1793     #- menu
1794     mb = Gtk::MenuBar.new
1795
1796     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1797     filesubmenu = Gtk::Menu.new
1798     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1799     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1800     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1801     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1802     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1803     filemenu.set_submenu(filesubmenu)
1804     mb.append(filemenu)
1805
1806     open.signal_connect('activate') { open_dir_popup }
1807     $execute.signal_connect('activate') { execute }
1808     quit.signal_connect('activate') { try_quit }
1809
1810     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1811     editsubmenu = Gtk::Menu.new
1812     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1813     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1814     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1815     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1816     editmenu.set_submenu(editsubmenu)
1817     mb.append(editmenu)
1818
1819     $undo_mb.signal_connect('activate') { perform_undo }
1820     $redo_mb.signal_connect('activate') { perform_redo }
1821     prefs.signal_connect('activate') { preferences }
1822     
1823     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1824     helpsubmenu = Gtk::Menu.new
1825     helpsubmenu.append(howto = Gtk::ImageMenuItem.new(Gtk::Stock::HELP))
1826     helpsubmenu.append(speed = Gtk::ImageMenuItem.new(utf8(_("Speedup: key shortcuts"))))
1827     speed.image = Gtk::Image.new("#{$FPATH}/images/stock-info-16.png")
1828     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1829     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1830     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1831     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1832     helpmenu.set_submenu(helpsubmenu)
1833     mb.append(helpmenu)
1834
1835     howto.signal_connect('activate') {
1836         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Help</span>
1837
1838 1. Open a directory with <span foreground='darkblue'>File/Open</span>; the classifier will scan it (including subdirectories) and
1839 show thumbnails for all photos and videos at the bottom.
1840
1841 2. You can then navigate through images with the <span foreground='darkblue'>Left/Right</span> keyboard keys, or by <span foreground='darkblue'>clicking</span>
1842 on thumbnails.
1843
1844 3. You may associate a <span foreground='darkblue'>label</span> to each thumbnail. Either hit the <span foreground='darkblue'>Delete</span> key to associate
1845 the built-in <i>to remove</i> label, or hit any alphabetical key to associate a label you define.
1846 The first time you hit a key without any label associated, a popup will ask for the full
1847 name of this label, and what color you want. To clear the current label, hit the <span foreground='darkblue'>Space</span> key.
1848
1849 4. To help you better view what thumbnails are associated to your labels, you may <span foreground='darkblue'>hide</span>
1850 some of them by unchecking the labels checkboxes on the left.
1851
1852 5. Once you're finished reviewing all thumbnails, use <span foreground='darkblue'>File/Execute</span> to execute the desired
1853 actions according to associated labels. You can permanently remove (or not) images with
1854 the <i>to remove</i> label, and copy or move images with the labels you defined.
1855 ")), { :pos_centered => true, :not_transient => true })
1856     }
1857     speed.signal_connect('activate') {
1858         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Key shortcuts</span>
1859
1860 <span foreground='darkblue'>Left/Right</span>: move left and right in images
1861 <span foreground='darkblue'>Enter</span>: 'view' current image: for images, display EXIF data; for videos, play it
1862 <span foreground='darkblue'>Alt-Left/Right</span>: rotate current image clockwise/counter-clockwise
1863 <span foreground='darkblue'>Delete</span>: assign the 'to remove' label on current image
1864 <span foreground='darkblue'>Space</span>: clear any label on current image
1865 <span foreground='darkblue'>Control-z</span>: undo
1866 <span foreground='darkblue'>Control-r</span>: redo
1867 <span foreground='darkblue'>Control-Space</span>: recenter thumbnails on current item
1868
1869 Any alphabetical key will assign (or popup for) the associated label on current image.
1870 ")), { :pos_centered => true, :not_transient => true })
1871     }
1872     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial') }
1873     about.signal_connect('activate') { call_about }
1874
1875
1876     #- no toolbar, to save height
1877
1878     return mb
1879 end
1880
1881 def reset_labels
1882     for child in $labels_vbox.children
1883         $labels_vbox.remove(child)
1884     end
1885     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1886     $labels = {}
1887     $ordered_labels = []
1888     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1889     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1890     $unlabelled_button.active = true
1891     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1892     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1893     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1894     $toremove_button.active = true
1895     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1896     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1897     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1898     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1899 end
1900
1901 def reset_thumbnails
1902     $allentries = []
1903     if $preloader_running
1904         $preloader_force_exit = true
1905     end
1906     for child in $imagesline.children
1907         $imagesline.remove(child)
1908     end
1909     set_imagesline_size_request
1910 end
1911
1912 def set_imagesline_size_request
1913     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + Entry.thumbnails_height/4)
1914 end
1915
1916 def create_main_window
1917
1918     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1919     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1920
1921     mb = create_menubar
1922
1923     main_vbox = Gtk::VBox.new(false, 0)
1924     main_vbox.pack_start(mb, false, false)
1925     mainview_hbox = Gtk::HBox.new
1926     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
1927     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1928     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
1929     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1930     main_vbox.pack_start(mainview_hbox, true, true)
1931     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1932     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1933     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1934     main_vbox.pack_start($imagesline_sw, false, false)
1935     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1936
1937     set_imagesline_size_request
1938
1939     $main_window = create_window
1940     $main_window.add(main_vbox)
1941     $main_window.signal_connect('delete-event') {
1942         try_quit
1943     }
1944
1945     #- read/save size and position of window
1946     if $config['pos-x'] && $config['pos-y']
1947         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1948     else
1949         $main_window.window_position = Gtk::Window::POS_CENTER
1950     end
1951     msg 3, "size: #{$config['width']}x#{$config['height']}"
1952     $main_window.set_default_size(($config['width'] || 800).to_i, ($config['height'] || 600).to_i)
1953     $main_window.signal_connect('configure-event') {
1954         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1955         x, y = $main_window.window.root_origin
1956         width, height = $main_window.window.size
1957         $config['pos-x'] = x
1958         $config['pos-y'] = y
1959         $config['width'] = width
1960         $config['height'] = height
1961         false
1962     }
1963
1964     $main_window.show_all
1965     $loading_progressbar.hide
1966 end
1967
1968
1969 handle_options
1970 read_config
1971 Gtk.init
1972
1973
1974 create_main_window
1975 check_config
1976
1977 if ARGV[0]
1978     if msg = open_dir(*ARGV)
1979         puts msg
1980     else
1981         Gtk.idle_add {
1982             show_entries($allentries)
1983             false
1984         }
1985     end
1986 end
1987 Gtk.main
1988
1989 write_config