d2f9d3f3e141d4b5c518e7f0f88a20f43862886b
[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 class Entry
259     @@max_width = nil
260     def Entry.thumbnails_height
261         return $config['thumbnails-height'].to_i
262     end
263
264     attr_accessor :path, :guipath, :type, :angle, :button, :image, :alignment, :removed, :labeled
265
266     def initialize(path, type, guipath)
267         @path = path
268         @type = type
269         @guipath = guipath
270         if @@max_width.nil?
271             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
272         end
273     end
274
275     def free_pixbuf_full
276         if @pixbuf_full.nil?
277             return false
278         else
279             msg 3, ">>> free_pixbuf_full #{path}"
280             @pixbuf_full = nil
281             return true
282         end
283     end
284     def pixbuf_main
285         Gtk.main_iteration while Gtk.events_pending?
286         width, height = $mainview.window.size 
287         width = MainView.get_usable_width(width)
288         height = MainView.get_usable_height(height)
289         if @pixbuf_main.nil? || width != @width || height != @height
290             @width = width
291             @height = height
292             load_into_pixbuf_full  #- make sure it is loaded
293             if @pixbuf_full.nil?
294                 return
295             end
296             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
297                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
298                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
299                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
300                 else
301                     @pixbuf_main = @pixbuf_full
302                 end
303             else
304                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
305                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
306                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
307                 else
308                     @pixbuf_main = @pixbuf_full
309                 end
310             end
311         end
312         return @pixbuf_main
313     end
314     def free_pixbuf_main
315         if @pixbuf_main.nil?
316             return false
317         else
318             msg 3, ">>> free_pixbuf_main #{path}"
319             @pixbuf_main = nil
320             return true
321         end
322     end
323     def pixbuf_thumbnail
324         Gtk.main_iteration while Gtk.events_pending?
325         if @pixbuf_thumbnail.nil?
326             if @pixbuf_main
327                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
328                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (Entry.thumbnails_height.to_f/@pixbuf_main.height), Entry.thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
329             else
330                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
331                 @pixbuf_thumbnail = load_into_pixbuf_at_size { |w, h|
332                     if @angle == 0
333                         if h > Entry.thumbnails_height
334                             [ w * Entry.thumbnails_height.to_f/h, Entry.thumbnails_height ]
335                         else
336                             [ w, h ]
337                         end
338                     else
339                         if w > Entry.thumbnails_height
340                             [ Entry.thumbnails_height, h * Entry.thumbnails_height.to_f/w ]
341                         else
342                             [ w, h ]
343                         end
344                     end
345                 }
346             end
347         end
348         return @pixbuf_thumbnail
349     end
350     def free_pixbuf_thumbnail
351         if @pixbuf_thumbnail.nil?
352             return false
353         else
354             msg 3, ">>> free_pixbuf_thumbnail #{path}"
355             @pixbuf_thumbnail = nil
356             return true
357         end
358     end
359
360     def outline_color
361         if removed
362             return $color_red
363         elsif labeled
364             return labeled.color
365         else
366             return nil
367         end
368     end
369
370     def show_bg
371         if outline_color.nil?
372             button.modify_bg(Gtk::StateType::NORMAL, nil)
373             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
374             button.modify_bg(Gtk::StateType::ACTIVE, nil)
375         else
376             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
377             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
378             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
379         end
380     end
381
382     def get_beautified_name
383         if type == 'image'
384             size = get_image_size(path)
385             return _("%s (%sx%s, %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
386                                              size[:x],
387                                              size[:y],
388                                              commify(file_size(path)/1024)]
389         else
390             return _("%s (video - %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
391                                              commify(file_size(path)/1024)]
392         end
393     end
394
395     private
396     def cleanup_dir(dir)
397         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
398         Dir.delete(dir)
399     end
400
401     def load_into_pixbuf_full
402         if @pixbuf_full.nil?
403             msg 3, ">>> load_into_pixbuf_full #{path}"
404             @pixbuf_full = load_into_pixbuf_at_size { |w, h|
405                 if @angle == 0
406                     if w > @@max_width
407                         #- save memory and speedup (+35%) loading 
408                         [ w * (factor = @@max_width.to_f/w), h * factor ]
409                     else
410                         [ w, h ]
411                     end
412                 else
413                     if h > @@max_width
414                         [ w * (factor = @@max_width.to_f/h), h * factor ]
415                     else
416                         [ w, h ]
417                     end
418                 end
419             }
420         end
421     end
422
423     def load_into_pixbuf_at_size(&specify_size)
424         pixbuf = nil
425         if @type == 'video'
426             tmp = Tempfile.new("boohclassifiertemp")
427             dest_dir = tmp.path
428             tmp.close!
429             Dir.mkdir(dest_dir)
430             orig_base = File.basename(path)
431             tmpdir = gen_video_thumbnail(path, false, 0)
432             if tmpdir.nil?
433                 return
434             end
435             image_path = "#{tmpdir}/00000001.jpg"
436         else
437             image_path = @path
438         end
439         if @angle.nil?
440             if @type == 'image'
441                 @angle = guess_rotate(image_path)
442             else
443                 @angle = 0
444             end
445         end
446         begin
447             #- use a pixbuf loader and trigger Gtk.main_iteration on each chunk if needed, to keep the UI responsive even
448             #- if loaded pictures are several MBs large
449             loader = Gdk::PixbufLoader.new
450             loader.signal_connect('size-prepared') { |l, w, h|
451                 r = specify_size.call(w, h)
452                 #msg 3, "specified sizes: #{r[0]} #{r[1]}"
453                 loader.set_size(*specify_size.call(w, h))
454             }
455             id = loader.signal_connect('area-prepared') { pixbuf = loader.pixbuf }
456             if ! loader.load_not_freezing_ui(image_path, id)
457                 #- interrupted
458                 raise InterruptedLoading
459             end
460             if pixbuf.nil?
461                 raise "Loaded pixbuf nil - #{path} #{image_path}"
462             end
463         rescue
464             msg 0, "Cannot load #{image_path}: #{$!}"
465             return
466         ensure
467             if @type == 'video'
468                 File.delete(image_path)
469                 Dir.rmdir(tmpdir)
470             end
471         end
472         if pixbuf
473             if @angle != 0
474                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
475                 pixbuf = rotate_pixbuf(pixbuf, @angle)
476             end
477         end
478         if @type == 'video'
479             cleanup_dir(dest_dir)
480         end
481         return pixbuf
482     end
483
484     def to_s
485         @path
486     end
487 end
488
489 $allentries = []
490
491 def gc
492     start = Time.now
493     GC.start
494     msg 3, "GC in #{Time.now - start} s"
495 end
496
497 def free_cache(avoid)
498     i = $allentries.index($mainview.get_shown_entry)
499     return if i.nil?
500     start = Time.now
501     ($allentries.size - 1).downto($config['preload-distance'].to_i + 1) { |j|
502         index = i + j
503         if i + j < $allentries.size && ! avoid.include?(i + j)
504             $allentries[i + j].free_pixbuf_full
505             $allentries[i + j].free_pixbuf_main
506         end
507         if i - j >= 0 && ! avoid.include?(i - j)
508             $allentries[i - j].free_pixbuf_full
509             $allentries[i - j].free_pixbuf_main
510         end
511     }
512     msg 3, "freeing done in #{Time.now - start} s"
513     if get_mem > $config['cache-memory-use-figure'] * 3 / 4
514         gc
515         get_mem
516     end
517 end
518
519 def run_preloader_real
520     msg 3, "*** >> main preloading triggered..."
521     if $mainview.get_shown_entry
522         if get_mem > $config['cache-memory-use-figure']
523             msg 3, "too much RSS, stopping preloading, triggering GC"
524             gc
525             get_mem
526             return true
527         end
528         if $config['preload-distance'].to_i == 0
529             free_cache([])
530             return true
531         end
532         index = $allentries.index($mainview.get_shown_entry)
533         index_right = index
534         index_left = index
535         loaded_right = 0
536         loaded_left = 0
537         right_done = false
538         left_done = false
539         loaded = []
540         while ! right_done || ! left_done
541             if ! right_done
542                 index_right += 1
543                 while index_right < $allentries.size && ! visible($allentries[index_right])
544                     index_right += 1
545                 end
546                 if index_right == $allentries.size
547                     right_done = true
548                 else
549                     msg 3, "preloading #{$allentries[index_right].path}"
550                     begin
551                         $allentries[index_right].pixbuf_main
552                     rescue InterruptedLoading
553                         msg 3, "*** >>>> interrupted, rerun"
554                         return false
555                     end
556                     loaded << index_right
557                     loaded_right += 1
558                     if loaded_right == $config['preload-distance'].to_i
559                         right_done = true
560                     end
561                 end
562             end
563
564             if ! left_done
565                 index_left -= 1
566                 while index_left >= 0 && ! visible($allentries[index_left])
567                     index_left -= 1
568                 end
569                 if index_left == -1
570                     left_done = true
571                 else
572                     msg 3, "preloading #{$allentries[index_left].path}"
573                     begin
574                         $allentries[index_left].pixbuf_main
575                     rescue InterruptedLoading
576                         msg 3, "*** >>>> interrupted, rerun"
577                         return false
578                     end
579                     loaded << index_left
580                     loaded_left += 1
581                     if loaded_left == $config['preload-distance'].to_i
582                         left_done = true
583                     end
584                 end
585             end
586
587             #- in case just loaded another directory
588             if $preloader_force_exit
589                 $preloader_force_exit = false
590                 return true
591             end
592             #- in case moved fast
593             if index != $allentries.index($mainview.get_shown_entry)
594                 msg 3, "*** >>>> moved already, rerun"
595                 return false
596             end
597         end
598         free_cache(loaded)
599     end
600     msg 3, "*** << main preloading finished"
601     return true
602 end
603
604 def run_preloader
605     if ! $preloader_allowed
606         msg 3, "*** preloader not yet allowed"
607         return
608     end
609
610     if $preloader_running
611         msg 3, "preloader already running"
612         return
613     end
614     msg 3, "run preloader"
615     $preloader_running = true
616     Gtk.idle_add {
617         msg 3, "begin preloader from timeout "
618         if run_preloader_real
619             $preloader_running = false
620             false
621         else
622             true
623         end
624     }
625 end
626
627 class MainView < Gtk::DrawingArea
628
629     @@borders_thickness = 5
630     @@borders_length = 25
631     @@redraw_pending = nil
632
633     def MainView.borders_thickness
634         return @@borders_thickness
635     end
636
637     def MainView.get_usable_width(available_width)
638         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
639     end
640
641     def MainView.get_usable_height(available_height)
642         return available_height - @@borders_thickness * 2
643     end
644     
645     def initialize
646         super()
647         signal_connect('expose-event') { draw }
648         signal_connect('configure-event') { update_shown }
649     end
650
651     def try_show_entry(entry)
652         if entry && entry.button
653             if entry.button.has_focus?
654                 redraw
655             else
656                 entry.button.grab_focus
657             end
658         end
659     end
660
661     def set_shown_entry(entry)
662         t1 = Time.now
663         if entry && entry == @entry
664             return
665         end
666         if entry && ! entry.button
667             #- not loaded yet
668             return
669         end
670         @entry = entry
671         @entry and msg 3, "*** set entry to #{@entry.path}"
672         redraw
673         msg 3, "entry shown in: #{Time.now - t1} s"
674     end
675
676     def get_shown_entry
677         return @entry
678     end
679
680     def show_next_entry(entry)
681         index = $allentries.index(entry)
682         if index < $allentries.size - 1
683             index += 1
684         end
685         while index < $allentries.size - 1 && $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible?
686             index += 1
687         end
688         while $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible? && index > 0
689             index -= 1
690         end
691         if index < $allentries.size && $allentries[index] && $allentries[index].button && $allentries[index].button.visible?
692             try_show_entry($allentries[index])
693         end
694     end
695
696     def redraw
697         if @@redraw_pending
698             msg 3, "redraw already pending"
699             return
700         end
701         msg 3, "redraw"
702         @@redraw_pending = Gtk.idle_add {
703             msg 3, "begin redraw from timeout "
704             begin
705                 msg 3, "try redraw from timeout"
706                 redraw_real
707                 @@redraw_pending = nil
708                 run_preloader
709                 false
710             rescue InterruptedLoading
711                 msg 3, "interrupted, will retry"
712                 true
713             end
714         }
715     end
716
717     def redraw_real
718         @entry and sb_msg(_("Selected %s") % @entry.get_beautified_name)
719         if ! update_shown
720             return
721         end
722         w, h = window.size
723         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
724         window.clear
725         draw
726         window.end_paint
727     end
728
729     def update_shown
730         if @entry
731             msg 3, "################################################ trying to show #{@entry.path}"
732             pixbuf = @entry.pixbuf_main
733             if pixbuf
734                 @pixbuf = pixbuf
735                 width, height = window.size 
736                 @xpos = (width - @pixbuf.width)/2
737                 @ypos = (height - @pixbuf.height)/2
738                 return true
739             else
740                 return false
741             end
742         else
743             @pixbuf = nil
744             return true
745         end
746     end
747
748     def draw
749         if @pixbuf
750             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
751             if @entry && @entry.type == 'video'
752                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
753             end
754             if @entry && ! @entry.outline_color.nil?
755                 gc = Gdk::GC.new(window)
756                 colormap.alloc_color(@entry.outline_color, false, true)
757                 gc.set_foreground(@entry.outline_color)
758                 if @entry.type == 'video'
759                     xleft = @xpos - $videoborder_pixbuf.width
760                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
761                 else
762                     xleft = @xpos
763                     xright = @xpos + @pixbuf.width
764                 end
765                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
766                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
767                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
768                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
769                                                [xleft - @@borders_thickness, @ypos - 1],
770                                                [xleft - 1, @ypos - 1],
771                                                [xleft - 1, @ypos + @pixbuf.height + 1],
772                                                [xright + 1, @ypos + @pixbuf.height + 1],
773                                                [xright + 1, @ypos - 1],
774                                                [xleft - @@borders_thickness, @ypos - 1]])
775             end
776         end
777     end
778 end
779
780 def autoscroll_if_needed(button, center)
781     xpos_left = button.allocation.x
782     xpos_right = button.allocation.x + button.allocation.width
783     hadj = $imagesline_sw.hadjustment
784     current_minx_visible = hadj.value
785     current_maxx_visible = hadj.value + hadj.page_size
786     if ! center
787         if xpos_left < current_minx_visible
788             #- autoscroll left
789             newval = hadj.value - (current_minx_visible - xpos_left)
790             hadj.value = newval
791         elsif xpos_right > current_maxx_visible
792             #- autoscroll right
793             newval = hadj.value + (xpos_right - current_maxx_visible)
794             if newval > hadj.upper - hadj.page_size
795                 newval = hadj.upper - hadj.page_size
796             end
797             hadj.value = newval
798         end
799     else
800         hadj.value = clamp((xpos_left + xpos_right) / 2 - hadj.page_size / 2, 0, hadj.upper - hadj.page_size)
801     end
802 end
803
804 def show_popup(parent, msg, *options)
805     dialog = Gtk::Dialog.new
806     if options[0]
807         options = options[0]
808     else
809         options = {}
810     end
811     if options[:title]
812         dialog.title = options[:title]
813     else
814         dialog.title = utf8(_("Booh message"))
815     end
816     lbl = Gtk::Label.new
817     if options[:nomarkup]
818         lbl.text = msg
819     else
820         lbl.markup = msg
821     end
822     if options[:centered]
823         lbl.set_justify(Gtk::Justification::CENTER)
824     end
825     if options[:selectable]
826         lbl.selectable = true
827     end
828     if options[:topwidget]
829         dialog.vbox.add(options[0][:topwidget])
830     end
831     if options[:scrolled]
832         sw = Gtk::ScrolledWindow.new(nil, nil)
833         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
834         sw.add_with_viewport(lbl)
835         dialog.vbox.add(sw)
836         dialog.set_default_size(500, 600)
837     else
838         dialog.vbox.add(lbl)
839         dialog.set_default_size(200, 120)
840     end
841     if options[:bottomwidget]
842         dialog.vbox.add(options[:bottomwidget])
843     end
844     if options[:okcancel]
845         cancel = dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
846         if ! options[:bottomwidget]
847             cancel.grab_focus
848         end
849         dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
850     else
851         ok = dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK).grab_focus
852         if ! options[:bottomwidget]
853             ok.grab_focus
854         end
855     end
856
857     if options[:pos_centered]
858         dialog.window_position = Gtk::Window::POS_CENTER
859     else
860         dialog.window_position = Gtk::Window::POS_MOUSE
861     end
862
863     if options[:linkurl]
864         linkbut = Gtk::Button.new('')
865         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
866         linkbut.signal_connect('clicked') {
867             open_url(options[0][:linkurl] + '/index.html')
868             dialog.response(Gtk::Dialog::RESPONSE_OK)
869             set_mousecursor_normal
870         }
871         linkbut.relief = Gtk::RELIEF_NONE
872         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
873         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
874         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
875     end
876
877     dialog.show_all
878
879     if options[:stuff_connector]
880         options[:stuff_connector].call({ :dialog => dialog })
881     end
882                                         
883     if !options[:not_transient]
884         dialog.transient_for = parent
885         dialog.run { |response|
886             if options[:data_getter]
887                 options[:data_getter].call
888             end
889             dialog.destroy
890             if options[:okcancel]
891                 return response == Gtk::Dialog::RESPONSE_OK
892             end
893         }
894     else
895         dialog.signal_connect('response') { dialog.destroy }
896     end
897 end
898
899 def view_entry(entry)
900     if entry.type == 'image'
901         show_popup($main_window,
902                    utf8(`exif -m '#{entry.path}'`),
903                    { :title => utf8(_("EXIF data of %s") % File.basename(entry.path)), :nomarkup => true, :scrolled => true, :not_transient => true })
904     else
905         cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
906         msg 2, cmd
907         system(cmd)
908     end
909 end
910
911 def thumbnail_keypressed(entry, event)
912     if event.state & Gdk::Window::MOD1_MASK != 0
913         #- ALT pressed: Alt-Left and Alft-Right rotate
914         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
915             if event.keyval == Gdk::Keyval::GDK_Left
916                 entry.angle = (entry.angle - 90) % 360
917             else
918                 entry.angle = (entry.angle + 90) % 360
919             end
920             entry.free_pixbuf_full
921             entry.free_pixbuf_main
922             entry.free_pixbuf_thumbnail
923             $mainview.redraw
924             entry.image.pixbuf = entry.pixbuf_thumbnail
925             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
926                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
927             end
928         end
929
930     elsif event.state & Gdk::Window::CONTROL_MASK != 0
931         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo, Ctrl-space for recentre
932         if event.keyval == Gdk::Keyval::GDK_z
933             perform_undo
934         end
935         if event.keyval == Gdk::Keyval::GDK_r
936             perform_redo
937         end
938         if event.keyval == Gdk::Keyval::GDK_space
939             shown = $mainview.get_shown_entry
940             shown and autoscroll_if_needed(shown.button, true)
941         end
942
943     else
944         removed_before = entry.removed
945         label_before = entry.labeled
946
947         if event.keyval == Gdk::Keyval::GDK_Delete
948             if ! FileTest.writable?(entry.path)
949                 show_popup($main_window, utf8(_("Notice: no write access to '%s', permission will be denied at execute step.") % entry.path))
950             end
951             entry.removed = true
952             entry.labeled = nil
953             entry.show_bg
954             update_visibility(entry)
955             $mainview.show_next_entry(entry)
956
957             save_undo(_("set for removal"),
958                       proc {
959                           entry.removed = removed_before
960                           entry.labeled = label_before
961                           entry.show_bg
962                           update_visibility(entry)
963                           if entry.button.visible?
964                               $mainview.try_show_entry(entry)
965                           end
966                           proc {
967                               entry.removed = true
968                               entry.labeled = nil
969                               entry.show_bg
970                               update_visibility(entry)
971                               if entry.button.visible?
972                                   $mainview.try_show_entry(entry)
973                               end
974                           }
975                       })
976
977         elsif event.keyval == Gdk::Keyval::GDK_space
978             if entry.labeled
979                 msg = _("Cleared label")
980             elsif entry.removed
981                 msg = _("Cleared set for removal")
982             end
983             entry.removed = false
984             entry.labeled = nil
985             entry.show_bg
986             $mainview.show_next_entry(entry)
987
988             save_undo(msg,
989                       proc {
990                           entry.removed = removed_before
991                           entry.labeled = label_before
992                           entry.show_bg
993                           $mainview.try_show_entry(entry)
994                           proc {
995                               entry.removed = false
996                               entry.labeled = nil
997                               entry.show_bg
998                               $mainview.try_show_entry(entry)
999                           }
1000                       })
1001
1002         elsif event.keyval == Gdk::Keyval::GDK_Return
1003             view_entry(entry)
1004
1005         elsif event.keyval == Gdk::Keyval::GDK_Home
1006             index = 0
1007             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1008                 index += 1
1009             end
1010             if $allentries[index] && $allentries[index].button
1011                 $allentries[index].button.grab_focus
1012             end
1013
1014         elsif event.keyval == Gdk::Keyval::GDK_End
1015             index = $allentries.size - 1
1016             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1017                 index += 1
1018             end
1019             if $allentries[index] && $allentries[index].button
1020                 $allentries[index].button.grab_focus
1021             end
1022
1023         else
1024             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
1025             if char =~ /^[a-zA-z0-9]$/
1026                 label = $labels[char]
1027                 
1028                 if label.nil?
1029                     vb = Gtk::VBox.new(false, 0)
1030                     vb.pack_start(labelentry = Gtk::Entry.new.set_text(char), false, false)
1031                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
1032                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
1033                     bt.signal_connect('color-set') { color = bt.color }
1034                     text = nil
1035                     labelentry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
1036                         while $labels.has_key?(labelentry.text[0,1])
1037                             labelentry.text = labelentry.text.sub(/./, '')
1038                         end
1039                     }
1040                     if show_popup($main_window,
1041                                   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,
1042                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = labelentry.text },
1043                                     :stuff_connector => proc { |stuff| labelentry.select_region(0, 0)
1044                                                                        labelentry.position = -1
1045                                                                        labelentry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
1046                         if text.length > 0
1047                             char = text[0,1]  #- in case it changed
1048                             label = Label.new(text)
1049                             label.color = color
1050                             $labels[char] = label
1051                             $ordered_labels << label
1052                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
1053                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1054                             label.button.active = true
1055                             label.button.signal_connect('toggled') { update_all_visibilities }
1056                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
1057                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
1058                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
1059                         end
1060                     end
1061                 end
1062
1063                 if label
1064                     entry.removed = false
1065                     entry.labeled = label
1066                     entry.show_bg
1067                     update_visibility(entry)
1068                     $mainview.show_next_entry(entry)
1069
1070                     save_undo(_("set label"),
1071                               proc {
1072                                   entry.removed = removed_before
1073                                   entry.labeled = label_before
1074                                   entry.show_bg
1075                                   update_visibility(entry)
1076                                   if entry.button.visible?
1077                                       $mainview.try_show_entry(entry)
1078                                   end
1079                                   proc {
1080                                       entry.removed = false
1081                                       entry.labeled = label
1082                                       entry.show_bg
1083                                       update_visibility(entry)
1084                                       if entry.button.visible?
1085                                           $mainview.try_show_entry(entry)
1086                                       end
1087                                   }
1088                               })
1089                 end
1090             end
1091         end
1092     end
1093 end
1094
1095 def sb_msg(msg)
1096     $statusbar.pop(0)
1097     if msg
1098         $statusbar.push(0, utf8(msg))
1099     end
1100 end
1101
1102 def show_entry(entry, i, tips)
1103     #- scope entry
1104     #msg 3, "showing entry #{entry}"
1105     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
1106     if entry.type == 'video'
1107         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1108                                            pack_start(entry.image).
1109                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
1110         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1111         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1112     else
1113         entry.button = Gtk::Button.new.add(entry.image)
1114     end
1115     tips.set_tip(entry.button, entry.get_beautified_name, nil)
1116     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
1117     entry.button.signal_connect('clicked') {
1118         shown = $mainview.get_shown_entry
1119         if shown != entry
1120             shown and shown.alignment.set(0.5, 1, 0, 0)
1121             entry.alignment.set(0.5, 0, 0, 0)
1122             autoscroll_if_needed(entry.button, false)
1123             $mainview.set_shown_entry(entry)
1124         end
1125     }
1126     entry.button.signal_connect('button-press-event') { |w, event|
1127         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
1128             video_view(entry)
1129         end
1130     }
1131     entry.button.signal_connect('focus-in-event') { entry.button.clicked }
1132     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
1133     if i == 0
1134         entry.button.grab_focus
1135     end
1136     update_visibility(entry)
1137 end
1138
1139 def show_entries(allentries)
1140     sb_msg(_("Loading images..."))
1141     $loading_progressbar.fraction = 0
1142     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
1143     $loading_progressbar.show
1144     t1 = Time.now
1145     total_loaded_files = 0
1146     total_loaded_size = 0
1147     i = 0
1148     tips = Gtk::Tooltips.new
1149     while i < allentries.size
1150         begin
1151             entry = allentries[i]
1152             if i == 0
1153                 loaded_pixbuf = entry.pixbuf_main
1154             else
1155                 loaded_pixbuf = entry.pixbuf_thumbnail
1156             end
1157         rescue InterruptedLoading
1158             redo
1159         end
1160
1161         if $allentries != allentries
1162             #- loaded another directory while this one was not yet finished
1163             msg 3, "allentries differ, stopping this deprecated load"
1164             return
1165         end
1166
1167         if loaded_pixbuf
1168             show_entry(entry, i, tips)
1169             if $allentries != allentries
1170                 #- loaded another directory while this one was not yet finished
1171                 msg 3, "allentries differ, stopping this deprecated load"
1172                 return
1173             end
1174
1175             total_loaded_size += file_size(entry.path)
1176             total_loaded_files += 1
1177             i += 1
1178             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1179                 #- when we're at preload distance, begin preloading to preload distance
1180                 begin
1181                     allentries[i - $config['preload-distance'].to_i].pixbuf_main
1182                 rescue InterruptedLoading
1183                 end
1184             end
1185             if i == $config['preload-distance'].to_i * 2 + 1
1186                 #- when we're after double preload distance, activate normal preloading
1187                 $preloader_allowed = true
1188             end
1189             
1190         else
1191             allentries.delete_at(i)
1192         end
1193         $loading_progressbar.fraction = i.to_f / allentries.size
1194         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1195         if $quit
1196             return
1197         end
1198     end
1199     if i <= $config['preload-distance'].to_i * 2
1200         #- not yet preloaded correctly
1201         $preloader_allowed = true
1202         run_preloader
1203     end
1204     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1205     $loading_progressbar.hide
1206     $execute.sensitive = true
1207 end
1208
1209 def reset_all
1210     reset_labels
1211     reset_thumbnails
1212     $mainview.set_shown_entry(nil)
1213     sb_msg(nil)
1214     $preloader_allowed = false
1215     $execute.sensitive = false
1216 end
1217
1218 def open_dir(*paths)
1219     #- remove visual stuff, so that user will see something is happening
1220     reset_all
1221     sb_msg(_("Scanning source directory..."))
1222     Gtk.main_iteration while Gtk.events_pending?
1223
1224     for path in paths
1225         path = File.expand_path(path.sub(%r|/$|, ''))
1226         $workingdir = path
1227         entries = []
1228         if File.directory?(path)
1229             examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
1230             #- validate first
1231             examined_dirs.each { |dir|
1232                 if dir =~ /'/
1233                     return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1234                 end
1235                 Dir.entries(dir).each { |file|
1236                     if file =~ /'/ && type = entry2type(file) && type == 'video'
1237                         return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1238                     end
1239                 }
1240             }
1241             
1242             #- scan for populate second
1243             examined_dirs.each { |dir|
1244                 if File.basename(dir) =~ /^\./
1245                     msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1246                     next
1247                 end
1248                 entries += Dir.entries(dir).collect { |file| File.join(dir, file) }
1249             }
1250
1251         else
1252             entries << path
1253         end
1254
1255         if $sort_by_exif_date
1256             dates = {}
1257             entries.each { |file|
1258                 date_time = Exif.datetimeoriginal(file)
1259                 if ! date_time.nil?
1260                     dates[file] = date_time
1261                 end
1262             }
1263             entries = smartsort(entries, dates)
1264         else
1265             entries.sort!
1266         end
1267         entries.each { |file|
1268             type = entry2type(file)
1269             if type
1270                 if File.directory?(path)
1271                     $allentries << Entry.new(file, type, file[path.length + 1 .. -1])
1272                 else
1273                     $allentries << Entry.new(file, type, file)
1274                 end
1275             end
1276         }
1277     end
1278     return nil
1279 end
1280
1281 def open_dir_popup
1282     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1283                                     nil,
1284                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1285                                     nil,
1286                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1287     fc.transient_for = $main_window
1288     if $workingdir
1289         fc.current_folder = $workingdir
1290     end
1291     ok = false
1292     load = false
1293     while !ok
1294         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1295             msg = open_dir(fc.filename)
1296             if msg
1297                 show_popup(fc, msg)
1298                 ok = false
1299             else
1300                 ok = true
1301                 load = true
1302             end
1303         else
1304             ok = true
1305         end
1306     end
1307     fc.destroy
1308     if load
1309         show_entries($allentries)
1310     end
1311 end
1312
1313 def try_quit(*options)
1314     if ! $allentries.detect { |e| e.removed || e.labeled } || show_popup($main_window,
1315                                                                          utf8(_("You have not executed the classification. Are you sure you want to quit?")),
1316                                                                          { :okcancel => true })
1317         Gtk.main_quit
1318         $quit = true
1319         return false
1320     else
1321         return true
1322     end
1323 end
1324
1325 def execute
1326     dialog = Gtk::Dialog.new
1327     dialog.title = utf8(_("Booh message"))
1328
1329     vb1 = Gtk::VBox.new(false, 5)
1330     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!")))
1331     vb1.pack_start(label, false, false)
1332
1333     lastpath = $workingdir
1334
1335     table = Gtk::Table.new(0, 0, false)
1336     table.set_row_spacings(5)
1337     table.set_column_spacings(5)
1338     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)
1339     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)
1340     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)
1341     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)
1342     add_row = proc { |row, name, color, truthproc, normal|
1343         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)),
1344                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1345         counter = 0
1346         examples = Gtk::HBox.new(false, 5)
1347         $allentries.each { |entry|
1348             if truthproc.call(entry)
1349                 counter += 1
1350                 if counter < 4
1351                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1352                     if entry.type == 'video'
1353                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1354                                                   pack_start(thumbnail).
1355                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1356                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1357                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1358                     end
1359                     examples.pack_start(thumbnail, false, false)
1360                 elsif counter == 4
1361                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1362                 end
1363             end
1364         }
1365         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1366         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1367
1368         if counter == 0
1369             return {}
1370         end
1371
1372         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1373         iter = combostore.append
1374         if normal
1375             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1376             iter[1] = utf8(_("Copy to:"))
1377             iter = combostore.append
1378             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1379             iter[1] = utf8(_("Move to:"))
1380         else
1381             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1382             iter[1] = utf8(_("Permanently remove"))
1383         end
1384         iter = combostore.append
1385         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1386         iter[1] = utf8(_("Do nothing"))
1387         combo = Gtk::ComboBox.new(combostore)
1388         combo.active = 0
1389         renderer = Gtk::CellRendererPixbuf.new
1390         combo.pack_start(renderer, false)
1391         combo.set_attributes(renderer, :pixbuf => 0)
1392         renderer = Gtk::CellRendererText.new
1393         combo.pack_start(renderer, true)
1394         combo.set_attributes(renderer, :text => 1)
1395
1396         if normal
1397             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1398             pathbutton.signal_connect('clicked') {
1399                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1400                                                 nil,
1401                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1402                                                 nil,
1403                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1404                 fc.transient_for = dialog
1405                 if lastpath
1406                     fc.current_folder = lastpath
1407                 end
1408                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1409                     pathlabel.text = fc.filename
1410                     pathlabel.set_alignment(0, 0.5)
1411                 end
1412                 lastpath = fc.filename
1413                 fc.destroy
1414             }
1415             combo.signal_connect('changed') {
1416                 pathbutton.sensitive = combo.active <= 1
1417             }
1418             vb = Gtk::VBox.new(false, 5)
1419             vb.pack_start(combo, false, false)
1420             vb.pack_start(pathbutton, false, false)
1421             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1422             { :combo => combo, :pathlabel => pathlabel }
1423         else
1424             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1425             { :combo => combo }
1426         end
1427     }
1428     stuff = {}
1429     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1430     $ordered_labels.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1431     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1432
1433     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1434     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1435     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 ]))
1436     if toremove_amount > 0
1437         vb1.pack_start(check_removal, false, false)
1438         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1439             check_removal.sensitive = widget.active == 0
1440         }
1441     end
1442
1443     dialog.vbox.add(vb1)
1444
1445     dialog.set_default_size(800, 600)
1446     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1447     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1448     dialog.window_position = Gtk::Window::POS_MOUSE
1449     dialog.transient_for = $main_window
1450
1451     dialog.show_all
1452
1453     while true
1454         dialog.run { |response|        
1455             if response == Gtk::Dialog::RESPONSE_OK
1456                 problem = false
1457                 if toremove_amount > 0 && stuff['toremove'][:combo].active == 0
1458                     if ! check_removal.active?
1459                         show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1460                         problem = true
1461                         break
1462                     end
1463                     $allentries.each { |entry|
1464                         if entry.removed
1465                             if ! FileTest.writable?(entry.path)
1466                                 show_popup(dialog, utf8(_("Sorry, permission denied to remove '%s'.") % [ entry.path ]))
1467                                 problem = true
1468                                 break
1469                             end
1470                         end
1471                     }
1472                 end
1473                 label2entries = {}
1474                 $labels.values.each { |label| label2entries[label] = [] }
1475                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1476                 stuff.keys.each { |key|
1477                     if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1478                         destination = stuff[key][:pathlabel].text
1479                         if destination[0] != ?/
1480                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1481                             problem = true
1482                             break
1483                         end
1484                         begin
1485                             Dir.mkdir(destination)
1486                         rescue Errno::EEXIST
1487                         end
1488                         begin
1489                             st = File.stat(destination)
1490                         rescue
1491                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1492                             problem = true
1493                             break
1494                         end
1495                         if ! st.directory? || ! st.writable?
1496                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1497                             problem = true
1498                             break
1499                         end
1500                         label2entries[key].each { |entry|
1501                             begin
1502                                 File.stat(File.join(destination, File.basename(entry.path)))
1503                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1504                                 problem = true
1505                                 break
1506                             rescue
1507                             end
1508                         }
1509                         if stuff[key][:combo].active == 1
1510                             label2entries[key].each { |entry|
1511                                 if ! FileTest.writable?(entry.path)
1512                                     show_popup(dialog, utf8(_("Sorry, permission denied to move '%s'.") % [ entry.path ]))
1513                                     problem = true
1514                                     break
1515                                 end
1516                             }
1517                         end
1518                         if problem
1519                             break
1520                         end
1521                     end
1522                 }
1523                 if ! problem
1524                     begin
1525                         moved = 0
1526                         copied = 0
1527                         stuff.keys.each { |key|
1528                             if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1529                                 destination = stuff[key][:pathlabel].text
1530                                 label2entries[key].each { |entry|
1531                                     if stuff[key][:combo].active == 0
1532                                         system("cp -dp '#{entry.path}' '#{destination}'") or raise "failed to copy '#{entry.path}'"
1533                                         copied += 1
1534                                     elsif stuff[key][:combo].active == 1
1535                                         system("mv '#{entry.path}' '#{destination}'") or raise "failed to move '#{entry.path}'"
1536                                         moved += 1
1537                                     end
1538                                 }
1539                             end
1540                         }
1541                         removed = 0
1542                         if stuff['toremove'][:combo] && stuff['toremove'][:combo].active == 0
1543                             $allentries.each { |entry|
1544                                 if entry.removed
1545                                     File.delete(entry.path)
1546                                     removed += 1
1547                                 end
1548                             }
1549                         end
1550                     rescue
1551                         msg 1, "woops: #{$!}"
1552                         show_popup(dialog, utf8(_("Unexpected error: '%s'.") % $!))
1553                     end
1554                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1555                     dialog.destroy
1556                     reset_all
1557                     return
1558                 end
1559
1560             else
1561                 dialog.destroy
1562                 return
1563             end
1564         }
1565     end
1566 end
1567
1568 def visible(entry)
1569     if ! entry
1570         #- just "executed"
1571         return
1572     end
1573     if ! entry.button
1574         #- not yet loaded
1575         return
1576     end
1577     if entry.labeled
1578         if entry.labeled.button.active?
1579             return true
1580         else
1581             return false
1582         end
1583     elsif entry.removed
1584         if $toremove_button.active?
1585             return true
1586         else
1587             return false
1588         end
1589     else
1590         if $unlabelled_button.active?
1591             return true
1592         else
1593             return false
1594         end
1595     end
1596 end
1597
1598 def update_visibility(entry)
1599     v = visible(entry)
1600     if v.nil?
1601         return
1602     end
1603     if v
1604         entry.button.show
1605     else
1606         entry.button.hide
1607     end
1608 end
1609         
1610 def update_all_visibilities_aux
1611     $allentries.each { |entry|
1612         update_visibility(entry)
1613     }
1614     shown = $mainview.get_shown_entry
1615     shown or return
1616     while shown.button && ! shown.button.visible? && shown != $allentries.last
1617         shown = $allentries[$allentries.index(shown) + 1]
1618     end 
1619     if shown.button && shown.button.visible?
1620         shown.button.grab_focus
1621         return
1622     end
1623     $allentries.reverse.each { |entry|
1624         if entry.button && entry.button.visible?
1625             entry.button.grab_focus
1626             return
1627         end
1628     }
1629 end
1630
1631 def update_all_visibilities
1632     update_all_visibilities_aux
1633     Gtk.main_iteration while Gtk.events_pending?
1634     shown = $mainview.get_shown_entry
1635     shown and autoscroll_if_needed(shown.button, false)
1636 end
1637
1638
1639 def preferences
1640     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1641                              $main_window,
1642                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1643                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1644                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1645
1646     tooltips = Gtk::Tooltips.new
1647
1648     table_y = 0
1649
1650     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1651     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1652                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1653     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1654                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1655     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1656
1657     table_y += 1
1658     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1659                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1660     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1661                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1662     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1663
1664     table_y += 1
1665     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Thumbnails height: ")))),
1666                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1667     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(thumbnails_height = Gtk::SpinButton.new(32, 256, 16).set_value($config['thumbnails-height'].to_i)),
1668                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1669     tooltips.set_tip(thumbnails_height, utf8(_("The desired height of the thumbnails in the thumbnails line of the bottom")), nil)
1670
1671     table_y += 1
1672     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1673                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1674     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)),
1675                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1676     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1677
1678     table_y += 1
1679     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1680                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1681     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1682                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1683     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1684                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1685                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1686     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1687     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1688     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1689                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1690                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1691     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1692     cache_memfree_radio.signal_connect('toggled') {
1693         if cache_memfree_radio.active?
1694             cache_memfree_label.sensitive = true
1695             cache_specify_label.sensitive = false
1696         else
1697             cache_specify_label.sensitive = true
1698             cache_memfree_label.sensitive = false
1699         end
1700     }
1701     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1702     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1703         cache_memfree_spin.value = $1.to_i
1704     else
1705         cache_specify_spin.value = $config['cache-memory-use'].to_i / 1024
1706     end
1707
1708     table_y += 1
1709     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1710                0, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1711     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1712     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1713
1714     dialog.vbox.show_all
1715     dialog.run { |response|
1716         if response == Gtk::Dialog::RESPONSE_OK
1717             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1718             $config['browser'] = from_utf8(browser_entry.text)
1719             $config['thumbnails-height'] = thumbnails_height.value
1720             $config['preload-distance'] = preload_distance.value
1721             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1722             if cache_memfree_radio.active?
1723                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1724             else
1725                 $config['cache-memory-use'] = cache_specify_spin.value.to_i * 1024
1726             end
1727             set_cache_memory_use_figure
1728         end
1729     }
1730     dialog.destroy
1731 end
1732
1733 def perform_undo
1734     if $undo_mb.sensitive?
1735         $redo_mb.sensitive = true
1736         if not more_undoes = UndoHandler.undo($statusbar)
1737             $undo_mb.sensitive = false
1738         end
1739     end
1740 end
1741
1742 def perform_redo
1743     if $redo_mb.sensitive?
1744         $undo_mb.sensitive = true
1745         if not more_redoes = UndoHandler.redo($statusbar)
1746             $redo_mb.sensitive = false
1747         end
1748     end
1749 end
1750
1751 def create_menubar    
1752     #- menu
1753     mb = Gtk::MenuBar.new
1754
1755     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1756     filesubmenu = Gtk::Menu.new
1757     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1758     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1759     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1760     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1761     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1762     filemenu.set_submenu(filesubmenu)
1763     mb.append(filemenu)
1764
1765     open.signal_connect('activate') { open_dir_popup }
1766     $execute.signal_connect('activate') { execute }
1767     quit.signal_connect('activate') { try_quit }
1768
1769     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1770     editsubmenu = Gtk::Menu.new
1771     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1772     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1773     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1774     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1775     editmenu.set_submenu(editsubmenu)
1776     mb.append(editmenu)
1777
1778     $undo_mb.signal_connect('activate') { perform_undo }
1779     $redo_mb.signal_connect('activate') { perform_redo }
1780     prefs.signal_connect('activate') { preferences }
1781     
1782     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1783     helpsubmenu = Gtk::Menu.new
1784     helpsubmenu.append(howto = Gtk::ImageMenuItem.new(Gtk::Stock::HELP))
1785     helpsubmenu.append(speed = Gtk::ImageMenuItem.new(utf8(_("Speedup: key shortcuts"))))
1786     speed.image = Gtk::Image.new("#{$FPATH}/images/stock-info-16.png")
1787     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1788     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1789     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1790     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1791     helpmenu.set_submenu(helpsubmenu)
1792     mb.append(helpmenu)
1793
1794     howto.signal_connect('activate') {
1795         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Help</span>
1796
1797 1. Open a directory with <span foreground='darkblue'>File/Open</span>; the classifier will scan it (including subdirectories) and
1798 show thumbnails for all photos and videos at the bottom.
1799
1800 2. You can then navigate through images with the <span foreground='darkblue'>Left/Right</span> keyboard keys, or by <span foreground='darkblue'>clicking</span>
1801 on thumbnails.
1802
1803 3. You may associate a <span foreground='darkblue'>label</span> to each thumbnail. Either hit the <span foreground='darkblue'>Delete</span> key to associate
1804 the built-in <i>to remove</i> label, or hit any alphabetical key to associate a label you define.
1805 The first time you hit a key without any label associated, a popup will ask for the full
1806 name of this label, and what color you want. To clear the current label, hit the <span foreground='darkblue'>Space</span> key.
1807
1808 4. To help you better view what thumbnails are associated to your labels, you may <span foreground='darkblue'>hide</span>
1809 some of them by unchecking the labels checkboxes on the left.
1810
1811 5. Once you're finished reviewing all thumbnails, use <span foreground='darkblue'>File/Execute</span> to execute the desired
1812 actions according to associated labels. You can permanently remove (or not) images with
1813 the <i>to remove</i> label, and copy or move images with the labels you defined.
1814 ")), { :pos_centered => true, :not_transient => true })
1815     }
1816     speed.signal_connect('activate') {
1817         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Key shortcuts</span>
1818
1819 <span foreground='darkblue'>Left/Right</span>: move left and right in images
1820 <span foreground='darkblue'>Enter</span>: 'view' current image: for images, display EXIF data; for videos, play it
1821 <span foreground='darkblue'>Alt-Left/Right</span>: rotate current image clockwise/counter-clockwise
1822 <span foreground='darkblue'>Delete</span>: assign the 'to remove' label on current image
1823 <span foreground='darkblue'>Space</span>: clear any label on current image
1824 <span foreground='darkblue'>Control-z</span>: undo
1825 <span foreground='darkblue'>Control-r</span>: redo
1826 <span foreground='darkblue'>Control-Space</span>: recenter thumbnails on current item
1827
1828 Any alphabetical key will assign (or popup for) the associated label on current image.
1829 ")), { :pos_centered => true, :not_transient => true })
1830     }
1831     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial') }
1832     about.signal_connect('activate') { call_about }
1833
1834
1835     #- no toolbar, to save height
1836
1837     return mb
1838 end
1839
1840 def reset_labels
1841     for child in $labels_vbox.children
1842         $labels_vbox.remove(child)
1843     end
1844     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1845     $labels = {}
1846     $ordered_labels = []
1847     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1848     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1849     $unlabelled_button.active = true
1850     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1851     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1852     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1853     $toremove_button.active = true
1854     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1855     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1856     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1857     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1858 end
1859
1860 def reset_thumbnails
1861     $allentries = []
1862     if $preloader_running
1863         $preloader_force_exit = true
1864     end
1865     for child in $imagesline.children
1866         $imagesline.remove(child)
1867     end
1868     set_imagesline_size_request
1869 end
1870
1871 def set_imagesline_size_request
1872     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + Entry.thumbnails_height/4)
1873 end
1874
1875 def create_main_window
1876
1877     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1878     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1879
1880     mb = create_menubar
1881
1882     main_vbox = Gtk::VBox.new(false, 0)
1883     main_vbox.pack_start(mb, false, false)
1884     mainview_hbox = Gtk::HBox.new
1885     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
1886     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1887     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
1888     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1889     main_vbox.pack_start(mainview_hbox, true, true)
1890     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1891     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1892     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1893     main_vbox.pack_start($imagesline_sw, false, false)
1894     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1895
1896     set_imagesline_size_request
1897
1898     $main_window = create_window
1899     $main_window.add(main_vbox)
1900     $main_window.signal_connect('delete-event') {
1901         try_quit
1902     }
1903
1904     #- read/save size and position of window
1905     if $config['pos-x'] && $config['pos-y']
1906         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1907     else
1908         $main_window.window_position = Gtk::Window::POS_CENTER
1909     end
1910     msg 3, "size: #{$config['width']}x#{$config['height']}"
1911     $main_window.set_default_size(($config['width'] || 800).to_i, ($config['height'] || 600).to_i)
1912     $main_window.signal_connect('configure-event') {
1913         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1914         x, y = $main_window.window.root_origin
1915         width, height = $main_window.window.size
1916         $config['pos-x'] = x
1917         $config['pos-y'] = y
1918         $config['width'] = width
1919         $config['height'] = height
1920         false
1921     }
1922
1923     $main_window.show_all
1924     $loading_progressbar.hide
1925 end
1926
1927
1928 handle_options
1929 read_config
1930 Gtk.init
1931
1932
1933 create_main_window
1934 check_config
1935
1936 if ARGV[0]
1937     if msg = open_dir(*ARGV)
1938         puts msg
1939     else
1940         Gtk.idle_add {
1941             show_entries($allentries)
1942             false
1943         }
1944     end
1945 end
1946 Gtk.main
1947
1948 write_config