fix bug leading to never freeing images cache on x86_64 because of strange glibc...
[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     out = 'Full pixbufs ['
260     for entry in $allentries
261         out += entry.pixbuf_full_present? ? 'F' : '.'
262     end
263     msg 3, out + ']'
264 end
265
266 class Entry
267     @@max_width = nil
268     def Entry.thumbnails_height
269         return $config['thumbnails-height'].to_i
270     end
271
272     attr_accessor :path, :guipath, :type, :angle, :button, :image, :alignment, :removed, :labeled
273
274     def initialize(path, type, guipath)
275         @path = path
276         @type = type
277         @guipath = guipath
278         if @@max_width.nil?
279             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
280         end
281     end
282
283     def pixbuf_full_present?
284         return ! @pixbuf_full.nil?
285     end
286     def free_pixbuf_full
287         if @pixbuf_full.nil?
288             return false
289         else
290             msg 3, ">>> free_pixbuf_full #{path}"
291             @pixbuf_full = nil
292             return true
293         end
294     end
295
296     def pixbuf_main
297         Gtk.main_iteration while Gtk.events_pending?
298         width, height = $mainview.window.size 
299         width = MainView.get_usable_width(width)
300         height = MainView.get_usable_height(height)
301         if @pixbuf_main.nil? || width != @width || height != @height
302             @width = width
303             @height = height
304             load_into_pixbuf_full  #- make sure it is loaded
305             if @pixbuf_full.nil?
306                 return
307             end
308             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
309                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
310                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
311                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
312                 else
313                     @pixbuf_main = @pixbuf_full
314                 end
315             else
316                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
317                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
318                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
319                 else
320                     @pixbuf_main = @pixbuf_full
321                 end
322             end
323         end
324         return @pixbuf_main
325     end
326     def pixbuf_main_present?
327         return ! @pixbuf_main.nil?
328     end
329     def free_pixbuf_main
330         if @pixbuf_main.nil?
331             return false
332         else
333             msg 3, ">>> free_pixbuf_main #{path}"
334             @pixbuf_main = nil
335             return true
336         end
337     end
338
339     def pixbuf_thumbnail
340         Gtk.main_iteration while Gtk.events_pending?
341         if @pixbuf_thumbnail.nil?
342             if @pixbuf_main
343                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
344                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (Entry.thumbnails_height.to_f/@pixbuf_main.height), Entry.thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
345             else
346                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
347                 @pixbuf_thumbnail = load_into_pixbuf_at_size { |w, h|
348                     if @angle == 0
349                         if h > Entry.thumbnails_height
350                             [ w * Entry.thumbnails_height.to_f/h, Entry.thumbnails_height ]
351                         else
352                             [ w, h ]
353                         end
354                     else
355                         if w > Entry.thumbnails_height
356                             [ Entry.thumbnails_height, h * Entry.thumbnails_height.to_f/w ]
357                         else
358                             [ w, h ]
359                         end
360                     end
361                 }
362             end
363         end
364         return @pixbuf_thumbnail
365     end
366     def free_pixbuf_thumbnail
367         if @pixbuf_thumbnail.nil?
368             return false
369         else
370             msg 3, ">>> free_pixbuf_thumbnail #{path}"
371             @pixbuf_thumbnail = nil
372             return true
373         end
374     end
375
376     def outline_color
377         if removed
378             return $color_red
379         elsif labeled
380             return labeled.color
381         else
382             return nil
383         end
384     end
385
386     def show_bg
387         if outline_color.nil?
388             button.modify_bg(Gtk::StateType::NORMAL, nil)
389             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
390             button.modify_bg(Gtk::StateType::ACTIVE, nil)
391         else
392             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
393             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
394             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
395         end
396     end
397
398     def get_beautified_name
399         if type == 'image'
400             size = get_image_size(path)
401             return _("%s (%sx%s, %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
402                                              size[:x],
403                                              size[:y],
404                                              commify(file_size(path)/1024)]
405         else
406             return _("%s (video - %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
407                                              commify(file_size(path)/1024)]
408         end
409     end
410
411     private
412     def cleanup_dir(dir)
413         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
414         Dir.delete(dir)
415     end
416
417     def load_into_pixbuf_full
418         if @pixbuf_full.nil?
419             msg 3, ">>> load_into_pixbuf_full #{path}"
420             @pixbuf_full = load_into_pixbuf_at_size { |w, h|
421                 if @angle == 0
422                     if w > @@max_width
423                         #- save memory and speedup (+35%) loading 
424                         [ w * (factor = @@max_width.to_f/w), h * factor ]
425                     else
426                         [ w, h ]
427                     end
428                 else
429                     if h > @@max_width
430                         [ w * (factor = @@max_width.to_f/h), h * factor ]
431                     else
432                         [ w, h ]
433                     end
434                 end
435             }
436             show_pixbufs_present
437         end
438     end
439
440     def load_into_pixbuf_at_size(&specify_size)
441         pixbuf = nil
442         if @type == 'video'
443             tmp = Tempfile.new("boohclassifiertemp")
444             dest_dir = tmp.path
445             tmp.close!
446             Dir.mkdir(dest_dir)
447             orig_base = File.basename(path)
448             tmpdir = gen_video_thumbnail(path, false, 0)
449             if tmpdir.nil?
450                 return
451             end
452             image_path = "#{tmpdir}/00000001.jpg"
453         else
454             image_path = @path
455         end
456         if @angle.nil?
457             if @type == 'image'
458                 @angle = guess_rotate(image_path)
459             else
460                 @angle = 0
461             end
462         end
463         begin
464             #- use a pixbuf loader and trigger Gtk.main_iteration on each chunk if needed, to keep the UI responsive even
465             #- if loaded pictures are several MBs large
466             loader = Gdk::PixbufLoader.new
467             loader.signal_connect('size-prepared') { |l, w, h|
468                 r = specify_size.call(w, h)
469                 #msg 3, "specified sizes: #{r[0]} #{r[1]}"
470                 loader.set_size(*specify_size.call(w, h))
471             }
472             id = loader.signal_connect('area-prepared') { pixbuf = loader.pixbuf }
473             if ! loader.load_not_freezing_ui(image_path, id)
474                 #- interrupted
475                 raise InterruptedLoading
476             end
477             if pixbuf.nil?
478                 raise "Loaded pixbuf nil - #{path} #{image_path}"
479             end
480         rescue
481             msg 0, "Cannot load #{image_path}: #{$!}"
482             return
483         ensure
484             if @type == 'video'
485                 File.delete(image_path)
486                 Dir.rmdir(tmpdir)
487             end
488         end
489         if pixbuf
490             if @angle != 0
491                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
492                 pixbuf = rotate_pixbuf(pixbuf, @angle)
493             end
494         end
495         if @type == 'video'
496             cleanup_dir(dest_dir)
497         end
498         return pixbuf
499     end
500
501     def to_s
502         @path
503     end
504 end
505
506 $allentries = []
507
508 def gc
509     start = Time.now
510     GC.start
511     msg 3, "GC in #{Time.now - start} s"
512 end
513
514 def free_cache_if_needed
515     i = $allentries.index($mainview.get_shown_entry)
516     return if i.nil?
517     if get_mem > $config['cache-memory-use-figure']
518         msg 3, "too much RSS, triggering GC"
519         gc
520     end
521     if get_mem < $config['cache-memory-use-figure']
522         return
523     end
524     msg 3, "too much RSS, freeing some cache"
525     start = Time.now
526     freed = 0
527     ($allentries.size - 1).downto($config['preload-distance'].to_i + 1) { |j|
528         index = i + j
529         if i + j < $allentries.size
530             $allentries[i + j].free_pixbuf_full
531             if $allentries[i + j].free_pixbuf_main
532                 freed += 1
533             end
534         end
535         if i - j >= 0
536             $allentries[i - j].free_pixbuf_full
537             if $allentries[i - j].free_pixbuf_main
538                 freed += 1
539             end
540         end
541         if freed >= 10
542             gc
543             if get_mem < $config['cache-memory-use-figure'] * 3 / 4
544                 msg 3, "RSS down enough - freeing done in #{Time.now - start} s"
545                 show_pixbufs_present
546                 return
547             end
548             freed = 0
549         end
550     }
551     msg 3, "freeing done in #{Time.now - start} s"
552     show_pixbufs_present
553 end
554
555 def run_preloader_real
556     msg 3, "*** >> main preloading triggered..."
557     if $mainview.get_shown_entry
558         free_cache_if_needed
559         if $config['preload-distance'].to_i == 0
560             return true
561         end
562         index = $allentries.index($mainview.get_shown_entry)
563         index_right = index
564         index_left = index
565         loaded_right = 0
566         loaded_left = 0
567         right_done = false
568         left_done = false
569         loaded = []
570         while ! right_done || ! left_done
571             if ! right_done
572                 index_right += 1
573                 while index_right < $allentries.size && ! visible($allentries[index_right])
574                     index_right += 1
575                 end
576                 if index_right == $allentries.size
577                     right_done = true
578                 else
579                     if ! $allentries[index_right].pixbuf_main_present?
580                         msg 3, "preloading #{$allentries[index_right].path}"
581                         begin
582                             $allentries[index_right].pixbuf_main
583                         rescue InterruptedLoading
584                             msg 3, "*** >>>> interrupted, rerun"
585                             return false
586                         end
587                     end
588                     loaded << index_right
589                     loaded_right += 1
590                     if loaded_right == $config['preload-distance'].to_i
591                         right_done = true
592                     end
593                 end
594             end
595
596             if ! left_done
597                 index_left -= 1
598                 while index_left >= 0 && ! visible($allentries[index_left])
599                     index_left -= 1
600                 end
601                 if index_left == -1
602                     left_done = true
603                 else
604                     if ! $allentries[index_left].pixbuf_main_present?
605                         msg 3, "preloading #{$allentries[index_left].path}"
606                         begin
607                             $allentries[index_left].pixbuf_main
608                         rescue InterruptedLoading
609                             msg 3, "*** >>>> interrupted, rerun"
610                             return false
611                         end
612                     end
613                     loaded << index_left
614                     loaded_left += 1
615                     if loaded_left == $config['preload-distance'].to_i
616                         left_done = true
617                     end
618                 end
619             end
620
621             #- in case just loaded another directory
622             if $preloader_force_exit
623                 $preloader_force_exit = false
624                 return true
625             end
626             #- in case moved fast
627             if index != $allentries.index($mainview.get_shown_entry)
628                 msg 3, "*** >>>> moved already, rerun"
629                 return false
630             end
631         end
632     end
633     msg 3, "*** << main preloading finished"
634     return true
635 end
636
637 def run_preloader
638     if ! $preloader_allowed
639         msg 3, "*** preloader not yet allowed"
640         return
641     end
642
643     if $preloader_running
644         msg 3, "preloader already running"
645         return
646     end
647     msg 3, "run preloader"
648     $preloader_running = true
649     Gtk.idle_add {
650         msg 3, "begin preloader from timeout "
651         if run_preloader_real
652             $preloader_running = false
653             false
654         else
655             true
656         end
657     }
658 end
659
660 class MainView < Gtk::DrawingArea
661
662     @@borders_thickness = 5
663     @@borders_length = 25
664     @@redraw_pending = nil
665
666     def MainView.borders_thickness
667         return @@borders_thickness
668     end
669
670     def MainView.get_usable_width(available_width)
671         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
672     end
673
674     def MainView.get_usable_height(available_height)
675         return available_height - @@borders_thickness * 2
676     end
677     
678     def initialize
679         super()
680         signal_connect('expose-event') { draw }
681         signal_connect('configure-event') { update_shown }
682     end
683
684     def try_show_entry(entry)
685         if entry && entry.button
686             if entry.button.has_focus?
687                 redraw
688             else
689                 entry.button.grab_focus
690             end
691         end
692     end
693
694     def set_shown_entry(entry)
695         t1 = Time.now
696         if entry && entry == @entry
697             return
698         end
699         if entry && ! entry.button
700             #- not loaded yet
701             return
702         end
703         @entry = entry
704         @entry and msg 3, "*** set entry to #{@entry.path}"
705         redraw
706         msg 3, "entry shown in: #{Time.now - t1} s"
707     end
708
709     def get_shown_entry
710         return @entry
711     end
712
713     def show_next_entry(entry)
714         index = $allentries.index(entry)
715         if index < $allentries.size - 1
716             index += 1
717         end
718         while index < $allentries.size - 1 && $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible?
719             index += 1
720         end
721         while $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible? && index > 0
722             index -= 1
723         end
724         if index < $allentries.size && $allentries[index] && $allentries[index].button && $allentries[index].button.visible?
725             try_show_entry($allentries[index])
726         end
727     end
728
729     def redraw
730         if @@redraw_pending
731             msg 3, "redraw already pending"
732             return
733         end
734         msg 3, "redraw"
735         @@redraw_pending = Gtk.idle_add {
736             msg 3, "begin redraw from timeout "
737             begin
738                 msg 3, "try redraw from timeout"
739                 redraw_real
740                 @@redraw_pending = nil
741                 run_preloader
742                 false
743             rescue InterruptedLoading
744                 msg 3, "interrupted, will retry"
745                 true
746             end
747         }
748     end
749
750     def redraw_real
751         @entry and sb_msg(_("Selected %s") % @entry.get_beautified_name)
752         if ! update_shown
753             return
754         end
755         w, h = window.size
756         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
757         window.clear
758         draw
759         window.end_paint
760     end
761
762     def update_shown
763         if @entry
764             msg 3, "################################################ trying to show #{@entry.path}"
765             pixbuf = @entry.pixbuf_main
766             if pixbuf
767                 @pixbuf = pixbuf
768                 width, height = window.size 
769                 @xpos = (width - @pixbuf.width)/2
770                 @ypos = (height - @pixbuf.height)/2
771                 return true
772             else
773                 return false
774             end
775         else
776             @pixbuf = nil
777             return true
778         end
779     end
780
781     def draw
782         if @pixbuf
783             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
784             if @entry && @entry.type == 'video'
785                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
786             end
787             if @entry && ! @entry.outline_color.nil?
788                 gc = Gdk::GC.new(window)
789                 colormap.alloc_color(@entry.outline_color, false, true)
790                 gc.set_foreground(@entry.outline_color)
791                 if @entry.type == 'video'
792                     xleft = @xpos - $videoborder_pixbuf.width
793                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
794                 else
795                     xleft = @xpos
796                     xright = @xpos + @pixbuf.width
797                 end
798                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
799                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
800                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
801                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
802                                                [xleft - @@borders_thickness, @ypos - 1],
803                                                [xleft - 1, @ypos - 1],
804                                                [xleft - 1, @ypos + @pixbuf.height + 1],
805                                                [xright + 1, @ypos + @pixbuf.height + 1],
806                                                [xright + 1, @ypos - 1],
807                                                [xleft - @@borders_thickness, @ypos - 1]])
808             end
809         end
810     end
811 end
812
813 def autoscroll_if_needed(button, center)
814     xpos_left = button.allocation.x
815     xpos_right = button.allocation.x + button.allocation.width
816     hadj = $imagesline_sw.hadjustment
817     current_minx_visible = hadj.value
818     current_maxx_visible = hadj.value + hadj.page_size
819     if ! center
820         if xpos_left < current_minx_visible
821             #- autoscroll left
822             newval = hadj.value - (current_minx_visible - xpos_left)
823             hadj.value = newval
824         elsif xpos_right > current_maxx_visible
825             #- autoscroll right
826             newval = hadj.value + (xpos_right - current_maxx_visible)
827             if newval > hadj.upper - hadj.page_size
828                 newval = hadj.upper - hadj.page_size
829             end
830             hadj.value = newval
831         end
832     else
833         hadj.value = clamp((xpos_left + xpos_right) / 2 - hadj.page_size / 2, 0, hadj.upper - hadj.page_size)
834     end
835 end
836
837 def show_popup(parent, msg, *options)
838     dialog = Gtk::Dialog.new
839     if options[0]
840         options = options[0]
841     else
842         options = {}
843     end
844     if options[:title]
845         dialog.title = options[:title]
846     else
847         dialog.title = utf8(_("Booh message"))
848     end
849     lbl = Gtk::Label.new
850     if options[:nomarkup]
851         lbl.text = msg
852     else
853         lbl.markup = msg
854     end
855     if options[:centered]
856         lbl.set_justify(Gtk::Justification::CENTER)
857     end
858     if options[:selectable]
859         lbl.selectable = true
860     end
861     if options[:topwidget]
862         dialog.vbox.add(options[0][:topwidget])
863     end
864     if options[:scrolled]
865         sw = Gtk::ScrolledWindow.new(nil, nil)
866         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
867         sw.add_with_viewport(lbl)
868         dialog.vbox.add(sw)
869         dialog.set_default_size(500, 600)
870     else
871         dialog.vbox.add(lbl)
872         dialog.set_default_size(200, 120)
873     end
874     if options[:bottomwidget]
875         dialog.vbox.add(options[:bottomwidget])
876     end
877     if options[:okcancel]
878         cancel = dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
879         if ! options[:bottomwidget]
880             cancel.grab_focus
881         end
882         dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
883     else
884         ok = dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK).grab_focus
885         if ! options[:bottomwidget]
886             ok.grab_focus
887         end
888     end
889
890     if options[:pos_centered]
891         dialog.window_position = Gtk::Window::POS_CENTER
892     else
893         dialog.window_position = Gtk::Window::POS_MOUSE
894     end
895
896     if options[:linkurl]
897         linkbut = Gtk::Button.new('')
898         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
899         linkbut.signal_connect('clicked') {
900             open_url(options[0][:linkurl] + '/index.html')
901             dialog.response(Gtk::Dialog::RESPONSE_OK)
902             set_mousecursor_normal
903         }
904         linkbut.relief = Gtk::RELIEF_NONE
905         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
906         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
907         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
908     end
909
910     dialog.show_all
911
912     if options[:stuff_connector]
913         options[:stuff_connector].call({ :dialog => dialog })
914     end
915                                         
916     if !options[:not_transient]
917         dialog.transient_for = parent
918         dialog.run { |response|
919             if options[:data_getter]
920                 options[:data_getter].call
921             end
922             dialog.destroy
923             if options[:okcancel]
924                 return response == Gtk::Dialog::RESPONSE_OK
925             end
926         }
927     else
928         dialog.signal_connect('response') { dialog.destroy }
929     end
930 end
931
932 def view_entry(entry)
933     if entry.type == 'image'
934         show_popup($main_window,
935                    utf8(`exif -m '#{entry.path}'`),
936                    { :title => utf8(_("EXIF data of %s") % File.basename(entry.path)), :nomarkup => true, :scrolled => true, :not_transient => true })
937     else
938         cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
939         msg 2, cmd
940         system(cmd)
941     end
942 end
943
944 def thumbnail_keypressed(entry, event)
945     if event.state & Gdk::Window::MOD1_MASK != 0
946         #- ALT pressed: Alt-Left and Alft-Right rotate
947         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
948             if event.keyval == Gdk::Keyval::GDK_Left
949                 entry.angle = (entry.angle - 90) % 360
950             else
951                 entry.angle = (entry.angle + 90) % 360
952             end
953             entry.free_pixbuf_full
954             entry.free_pixbuf_main
955             entry.free_pixbuf_thumbnail
956             show_pixbufs_present
957             $mainview.redraw
958             entry.image.pixbuf = entry.pixbuf_thumbnail
959             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
960                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
961             end
962         end
963
964     elsif event.state & Gdk::Window::CONTROL_MASK != 0
965         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo, Ctrl-space for recentre
966         if event.keyval == Gdk::Keyval::GDK_z
967             perform_undo
968         end
969         if event.keyval == Gdk::Keyval::GDK_r
970             perform_redo
971         end
972         if event.keyval == Gdk::Keyval::GDK_space
973             shown = $mainview.get_shown_entry
974             shown and autoscroll_if_needed(shown.button, true)
975         end
976
977     else
978         removed_before = entry.removed
979         label_before = entry.labeled
980
981         if event.keyval == Gdk::Keyval::GDK_Delete
982             if ! FileTest.writable?(entry.path)
983                 show_popup($main_window, utf8(_("Notice: no write access to '%s', permission will be denied at execute step.") % entry.path))
984             end
985             entry.removed = true
986             entry.labeled = nil
987             entry.show_bg
988             update_visibility(entry)
989             $mainview.show_next_entry(entry)
990
991             save_undo(_("set for removal"),
992                       proc {
993                           entry.removed = removed_before
994                           entry.labeled = label_before
995                           entry.show_bg
996                           update_visibility(entry)
997                           if entry.button.visible?
998                               $mainview.try_show_entry(entry)
999                           end
1000                           proc {
1001                               entry.removed = true
1002                               entry.labeled = nil
1003                               entry.show_bg
1004                               update_visibility(entry)
1005                               if entry.button.visible?
1006                                   $mainview.try_show_entry(entry)
1007                               end
1008                           }
1009                       })
1010
1011         elsif event.keyval == Gdk::Keyval::GDK_space
1012             if entry.labeled
1013                 msg = _("Cleared label")
1014             elsif entry.removed
1015                 msg = _("Cleared set for removal")
1016             end
1017             entry.removed = false
1018             entry.labeled = nil
1019             entry.show_bg
1020             $mainview.show_next_entry(entry)
1021
1022             save_undo(msg,
1023                       proc {
1024                           entry.removed = removed_before
1025                           entry.labeled = label_before
1026                           entry.show_bg
1027                           $mainview.try_show_entry(entry)
1028                           proc {
1029                               entry.removed = false
1030                               entry.labeled = nil
1031                               entry.show_bg
1032                               $mainview.try_show_entry(entry)
1033                           }
1034                       })
1035
1036         elsif event.keyval == Gdk::Keyval::GDK_Return
1037             view_entry(entry)
1038
1039         elsif event.keyval == Gdk::Keyval::GDK_Home
1040             index = 0
1041             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1042                 index += 1
1043             end
1044             if $allentries[index] && $allentries[index].button
1045                 $allentries[index].button.grab_focus
1046             end
1047
1048         elsif event.keyval == Gdk::Keyval::GDK_End
1049             index = $allentries.size - 1
1050             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1051                 index += 1
1052             end
1053             if $allentries[index] && $allentries[index].button
1054                 $allentries[index].button.grab_focus
1055             end
1056
1057         else
1058             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
1059             if char =~ /^[a-zA-z0-9]$/
1060                 label = $labels[char]
1061                 
1062                 if label.nil?
1063                     vb = Gtk::VBox.new(false, 0)
1064                     vb.pack_start(labelentry = Gtk::Entry.new.set_text(char), false, false)
1065                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
1066                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
1067                     bt.signal_connect('color-set') { color = bt.color }
1068                     text = nil
1069                     labelentry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
1070                         while $labels.has_key?(labelentry.text[0,1])
1071                             labelentry.text = labelentry.text.sub(/./, '')
1072                         end
1073                     }
1074                     if show_popup($main_window,
1075                                   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,
1076                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = labelentry.text },
1077                                     :stuff_connector => proc { |stuff| labelentry.select_region(0, 0)
1078                                                                        labelentry.position = -1
1079                                                                        labelentry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
1080                         if text.length > 0
1081                             char = text[0,1]  #- in case it changed
1082                             label = Label.new(text)
1083                             label.color = color
1084                             $labels[char] = label
1085                             $ordered_labels << label
1086                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
1087                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1088                             label.button.active = true
1089                             label.button.signal_connect('toggled') { update_all_visibilities }
1090                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
1091                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
1092                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
1093                         end
1094                     end
1095                 end
1096
1097                 if label
1098                     entry.removed = false
1099                     entry.labeled = label
1100                     entry.show_bg
1101                     update_visibility(entry)
1102                     $mainview.show_next_entry(entry)
1103
1104                     save_undo(_("set label"),
1105                               proc {
1106                                   entry.removed = removed_before
1107                                   entry.labeled = label_before
1108                                   entry.show_bg
1109                                   update_visibility(entry)
1110                                   if entry.button.visible?
1111                                       $mainview.try_show_entry(entry)
1112                                   end
1113                                   proc {
1114                                       entry.removed = false
1115                                       entry.labeled = label
1116                                       entry.show_bg
1117                                       update_visibility(entry)
1118                                       if entry.button.visible?
1119                                           $mainview.try_show_entry(entry)
1120                                       end
1121                                   }
1122                               })
1123                 end
1124             end
1125         end
1126     end
1127 end
1128
1129 def sb_msg(msg)
1130     $statusbar.pop(0)
1131     if msg
1132         $statusbar.push(0, utf8(msg))
1133     end
1134 end
1135
1136 def show_entry(entry, i, tips)
1137     #- scope entry
1138     #msg 3, "showing entry #{entry}"
1139     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
1140     if entry.type == 'video'
1141         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1142                                            pack_start(entry.image).
1143                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
1144         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1145         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1146     else
1147         entry.button = Gtk::Button.new.add(entry.image)
1148     end
1149     tips.set_tip(entry.button, entry.get_beautified_name, nil)
1150     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
1151     entry.button.signal_connect('clicked') {
1152         shown = $mainview.get_shown_entry
1153         if shown != entry
1154             shown and shown.alignment.set(0.5, 1, 0, 0)
1155             entry.alignment.set(0.5, 0, 0, 0)
1156             autoscroll_if_needed(entry.button, false)
1157             $mainview.set_shown_entry(entry)
1158         end
1159     }
1160     entry.button.signal_connect('button-press-event') { |w, event|
1161         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
1162             video_view(entry)
1163         end
1164     }
1165     entry.button.signal_connect('focus-in-event') { entry.button.clicked }
1166     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
1167     if i == 0
1168         entry.button.grab_focus
1169     end
1170     update_visibility(entry)
1171 end
1172
1173 def show_entries(allentries)
1174     sb_msg(_("Loading images..."))
1175     $loading_progressbar.fraction = 0
1176     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
1177     $loading_progressbar.show
1178     t1 = Time.now
1179     total_loaded_files = 0
1180     total_loaded_size = 0
1181     i = 0
1182     tips = Gtk::Tooltips.new
1183     while i < allentries.size
1184         begin
1185             entry = allentries[i]
1186             if i == 0
1187                 loaded_pixbuf = entry.pixbuf_main
1188             else
1189                 loaded_pixbuf = entry.pixbuf_thumbnail
1190             end
1191         rescue InterruptedLoading
1192             redo
1193         end
1194
1195         if $allentries != allentries
1196             #- loaded another directory while this one was not yet finished
1197             msg 3, "allentries differ, stopping this deprecated load"
1198             return
1199         end
1200
1201         if loaded_pixbuf
1202             show_entry(entry, i, tips)
1203             if $allentries != allentries
1204                 #- loaded another directory while this one was not yet finished
1205                 msg 3, "allentries differ, stopping this deprecated load"
1206                 return
1207             end
1208
1209             total_loaded_size += file_size(entry.path)
1210             total_loaded_files += 1
1211             i += 1
1212             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1213                 #- when we're at preload distance, begin preloading to preload distance
1214                 begin
1215                     allentries[i - $config['preload-distance'].to_i].pixbuf_main
1216                 rescue InterruptedLoading
1217                 end
1218             end
1219             if i == $config['preload-distance'].to_i * 2 + 1
1220                 #- when we're after double preload distance, activate normal preloading
1221                 $preloader_allowed = true
1222             end
1223             
1224         else
1225             allentries.delete_at(i)
1226         end
1227         $loading_progressbar.fraction = i.to_f / allentries.size
1228         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1229         if $quit
1230             return
1231         end
1232         if i % 25 == 0
1233             gc
1234         end
1235     end
1236     $preloader_allowed = true
1237     if i <= $config['preload-distance'].to_i * 2
1238         #- not yet preloaded correctly
1239         run_preloader
1240     end
1241     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1242     $loading_progressbar.hide
1243     $execute.sensitive = true
1244 end
1245
1246 def reset_all
1247     reset_labels
1248     reset_thumbnails
1249     $mainview.set_shown_entry(nil)
1250     sb_msg(nil)
1251     $preloader_allowed = false
1252     $execute.sensitive = false
1253 end
1254
1255 def open_dir(*paths)
1256     #- remove visual stuff, so that user will see something is happening
1257     reset_all
1258     sb_msg(_("Scanning source directory..."))
1259     Gtk.main_iteration while Gtk.events_pending?
1260
1261     for path in paths
1262         path = File.expand_path(path.sub(%r|/$|, ''))
1263         $workingdir = path
1264         entries = []
1265         if File.directory?(path)
1266             examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
1267             #- validate first
1268             examined_dirs.each { |dir|
1269                 if dir =~ /'/
1270                     return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1271                 end
1272                 Dir.entries(dir).each { |file|
1273                     if file =~ /'/ && type = entry2type(file) && type == 'video'
1274                         return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1275                     end
1276                 }
1277             }
1278             
1279             #- scan for populate second
1280             examined_dirs.each { |dir|
1281                 if File.basename(dir) =~ /^\./
1282                     msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1283                     next
1284                 end
1285                 entries += Dir.entries(dir).collect { |file| File.join(dir, file) }
1286             }
1287
1288         else
1289             entries << path
1290         end
1291
1292         if $sort_by_exif_date
1293             dates = {}
1294             entries.each { |file|
1295                 date_time = Exif.datetimeoriginal(file)
1296                 if ! date_time.nil?
1297                     dates[file] = date_time
1298                 end
1299             }
1300             entries = smartsort(entries, dates)
1301         else
1302             entries.sort!
1303         end
1304         entries.each { |file|
1305             type = entry2type(file)
1306             if type
1307                 if File.directory?(path)
1308                     $allentries << Entry.new(file, type, file[path.length + 1 .. -1])
1309                 else
1310                     $allentries << Entry.new(file, type, file)
1311                 end
1312             end
1313         }
1314     end
1315     return nil
1316 end
1317
1318 def open_dir_popup
1319     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1320                                     nil,
1321                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1322                                     nil,
1323                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1324     fc.transient_for = $main_window
1325     if $workingdir
1326         fc.current_folder = $workingdir
1327     end
1328     ok = false
1329     load = false
1330     while !ok
1331         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1332             msg = open_dir(fc.filename)
1333             if msg
1334                 show_popup(fc, msg)
1335                 ok = false
1336             else
1337                 ok = true
1338                 load = true
1339             end
1340         else
1341             ok = true
1342         end
1343     end
1344     fc.destroy
1345     if load
1346         show_entries($allentries)
1347     end
1348 end
1349
1350 def try_quit(*options)
1351     if ! $allentries.detect { |e| e.removed || e.labeled } || show_popup($main_window,
1352                                                                          utf8(_("You have not executed the classification. Are you sure you want to quit?")),
1353                                                                          { :okcancel => true })
1354         Gtk.main_quit
1355         $quit = true
1356         return false
1357     else
1358         return true
1359     end
1360 end
1361
1362 def execute
1363     dialog = Gtk::Dialog.new
1364     dialog.title = utf8(_("Booh message"))
1365
1366     vb1 = Gtk::VBox.new(false, 5)
1367     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!")))
1368     vb1.pack_start(label, false, false)
1369
1370     lastpath = $workingdir
1371
1372     table = Gtk::Table.new(0, 0, false)
1373     table.set_row_spacings(5)
1374     table.set_column_spacings(5)
1375     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)
1376     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)
1377     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)
1378     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)
1379     add_row = proc { |row, name, color, truthproc, normal|
1380         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)),
1381                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1382         counter = 0
1383         examples = Gtk::HBox.new(false, 5)
1384         $allentries.each { |entry|
1385             if truthproc.call(entry)
1386                 counter += 1
1387                 if counter < 4
1388                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1389                     if entry.type == 'video'
1390                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1391                                                   pack_start(thumbnail).
1392                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1393                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1394                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1395                     end
1396                     examples.pack_start(thumbnail, false, false)
1397                 elsif counter == 4
1398                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1399                 end
1400             end
1401         }
1402         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1403         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1404
1405         if counter == 0
1406             return {}
1407         end
1408
1409         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1410         iter = combostore.append
1411         if normal
1412             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1413             iter[1] = utf8(_("Copy to:"))
1414             iter = combostore.append
1415             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1416             iter[1] = utf8(_("Move to:"))
1417         else
1418             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1419             iter[1] = utf8(_("Permanently remove"))
1420         end
1421         iter = combostore.append
1422         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1423         iter[1] = utf8(_("Do nothing"))
1424         combo = Gtk::ComboBox.new(combostore)
1425         combo.active = 0
1426         renderer = Gtk::CellRendererPixbuf.new
1427         combo.pack_start(renderer, false)
1428         combo.set_attributes(renderer, :pixbuf => 0)
1429         renderer = Gtk::CellRendererText.new
1430         combo.pack_start(renderer, true)
1431         combo.set_attributes(renderer, :text => 1)
1432
1433         if normal
1434             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1435             pathbutton.signal_connect('clicked') {
1436                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1437                                                 nil,
1438                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1439                                                 nil,
1440                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1441                 fc.transient_for = dialog
1442                 if lastpath
1443                     fc.current_folder = lastpath
1444                 end
1445                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1446                     pathlabel.text = fc.filename
1447                     pathlabel.set_alignment(0, 0.5)
1448                 end
1449                 lastpath = fc.filename
1450                 fc.destroy
1451             }
1452             combo.signal_connect('changed') {
1453                 pathbutton.sensitive = combo.active <= 1
1454             }
1455             vb = Gtk::VBox.new(false, 5)
1456             vb.pack_start(combo, false, false)
1457             vb.pack_start(pathbutton, false, false)
1458             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1459             { :combo => combo, :pathlabel => pathlabel }
1460         else
1461             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1462             { :combo => combo }
1463         end
1464     }
1465     stuff = {}
1466     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1467     $ordered_labels.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1468     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1469
1470     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1471     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1472     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 ]))
1473     if toremove_amount > 0
1474         vb1.pack_start(check_removal, false, false)
1475         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1476             check_removal.sensitive = widget.active == 0
1477         }
1478     end
1479
1480     dialog.vbox.add(vb1)
1481
1482     dialog.set_default_size(800, 600)
1483     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1484     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1485     dialog.window_position = Gtk::Window::POS_MOUSE
1486     dialog.transient_for = $main_window
1487
1488     dialog.show_all
1489
1490     while true
1491         dialog.run { |response|        
1492             if response == Gtk::Dialog::RESPONSE_OK
1493                 problem = false
1494                 if toremove_amount > 0 && stuff['toremove'][:combo].active == 0
1495                     if ! check_removal.active?
1496                         show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1497                         problem = true
1498                         break
1499                     end
1500                     $allentries.each { |entry|
1501                         if entry.removed
1502                             if ! FileTest.writable?(entry.path)
1503                                 show_popup(dialog, utf8(_("Sorry, permission denied to remove '%s'.") % [ entry.path ]))
1504                                 problem = true
1505                                 break
1506                             end
1507                         end
1508                     }
1509                 end
1510                 label2entries = {}
1511                 $labels.values.each { |label| label2entries[label] = [] }
1512                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1513                 stuff.keys.each { |key|
1514                     if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1515                         destination = stuff[key][:pathlabel].text
1516                         if destination[0] != ?/
1517                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1518                             problem = true
1519                             break
1520                         end
1521                         begin
1522                             Dir.mkdir(destination)
1523                         rescue Errno::EEXIST
1524                         end
1525                         begin
1526                             st = File.stat(destination)
1527                         rescue
1528                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1529                             problem = true
1530                             break
1531                         end
1532                         if ! st.directory? || ! st.writable?
1533                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1534                             problem = true
1535                             break
1536                         end
1537                         label2entries[key].each { |entry|
1538                             begin
1539                                 File.stat(File.join(destination, File.basename(entry.path)))
1540                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1541                                 problem = true
1542                                 break
1543                             rescue
1544                             end
1545                         }
1546                         if stuff[key][:combo].active == 1
1547                             label2entries[key].each { |entry|
1548                                 if ! FileTest.writable?(entry.path)
1549                                     show_popup(dialog, utf8(_("Sorry, permission denied to move '%s'.") % [ entry.path ]))
1550                                     problem = true
1551                                     break
1552                                 end
1553                             }
1554                         end
1555                         if problem
1556                             break
1557                         end
1558                     end
1559                 }
1560                 if ! problem
1561                     begin
1562                         moved = 0
1563                         copied = 0
1564                         stuff.keys.each { |key|
1565                             if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1566                                 destination = stuff[key][:pathlabel].text
1567                                 label2entries[key].each { |entry|
1568                                     if stuff[key][:combo].active == 0
1569                                         system("cp -dp '#{entry.path}' '#{destination}'") or raise "failed to copy '#{entry.path}'"
1570                                         copied += 1
1571                                     elsif stuff[key][:combo].active == 1
1572                                         system("mv '#{entry.path}' '#{destination}'") or raise "failed to move '#{entry.path}'"
1573                                         moved += 1
1574                                     end
1575                                 }
1576                             end
1577                         }
1578                         removed = 0
1579                         if stuff['toremove'][:combo] && stuff['toremove'][:combo].active == 0
1580                             $allentries.each { |entry|
1581                                 if entry.removed
1582                                     File.delete(entry.path)
1583                                     removed += 1
1584                                 end
1585                             }
1586                         end
1587                     rescue
1588                         msg 1, "woops: #{$!}"
1589                         show_popup(dialog, utf8(_("Unexpected error: '%s'.") % $!))
1590                     end
1591                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1592                     dialog.destroy
1593                     reset_all
1594                     return
1595                 end
1596
1597             else
1598                 dialog.destroy
1599                 return
1600             end
1601         }
1602     end
1603 end
1604
1605 def visible(entry)
1606     if ! entry
1607         #- just "executed"
1608         return
1609     end
1610     if ! entry.button
1611         #- not yet loaded
1612         return
1613     end
1614     if entry.labeled
1615         if entry.labeled.button.active?
1616             return true
1617         else
1618             return false
1619         end
1620     elsif entry.removed
1621         if $toremove_button.active?
1622             return true
1623         else
1624             return false
1625         end
1626     else
1627         if $unlabelled_button.active?
1628             return true
1629         else
1630             return false
1631         end
1632     end
1633 end
1634
1635 def update_visibility(entry)
1636     v = visible(entry)
1637     if v.nil?
1638         return
1639     end
1640     if v
1641         entry.button.show
1642     else
1643         entry.button.hide
1644     end
1645 end
1646         
1647 def update_all_visibilities_aux
1648     $allentries.each { |entry|
1649         update_visibility(entry)
1650     }
1651     shown = $mainview.get_shown_entry
1652     shown or return
1653     while shown.button && ! shown.button.visible? && shown != $allentries.last
1654         shown = $allentries[$allentries.index(shown) + 1]
1655     end 
1656     if shown.button && shown.button.visible?
1657         shown.button.grab_focus
1658         return
1659     end
1660     $allentries.reverse.each { |entry|
1661         if entry.button && entry.button.visible?
1662             entry.button.grab_focus
1663             return
1664         end
1665     }
1666 end
1667
1668 def update_all_visibilities
1669     update_all_visibilities_aux
1670     Gtk.main_iteration while Gtk.events_pending?
1671     shown = $mainview.get_shown_entry
1672     shown and autoscroll_if_needed(shown.button, false)
1673 end
1674
1675
1676 def preferences
1677     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1678                              $main_window,
1679                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1680                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1681                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1682
1683     tooltips = Gtk::Tooltips.new
1684
1685     table_y = 0
1686
1687     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1688     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1689                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1690     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1691                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1692     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1693
1694     table_y += 1
1695     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1696                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1697     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1698                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1699     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1700
1701     table_y += 1
1702     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Thumbnails height: ")))),
1703                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1704     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(thumbnails_height = Gtk::SpinButton.new(32, 256, 16).set_value($config['thumbnails-height'].to_i)),
1705                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1706     tooltips.set_tip(thumbnails_height, utf8(_("The desired height of the thumbnails in the thumbnails line of the bottom")), nil)
1707
1708     table_y += 1
1709     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1710                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1711     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)),
1712                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1713     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1714
1715     table_y += 1
1716     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1717                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1718     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1719                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1720     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1721                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1722                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1723     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1724     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1725     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1726                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1727                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1728     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1729     cache_memfree_radio.signal_connect('toggled') {
1730         if cache_memfree_radio.active?
1731             cache_memfree_label.sensitive = true
1732             cache_specify_label.sensitive = false
1733         else
1734             cache_specify_label.sensitive = true
1735             cache_memfree_label.sensitive = false
1736         end
1737     }
1738     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1739     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1740         cache_memfree_spin.value = $1.to_i
1741     else
1742         cache_specify_spin.value = $config['cache-memory-use'].to_i / 1024
1743     end
1744
1745     table_y += 1
1746     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1747                0, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1748     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1749     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1750
1751     dialog.vbox.show_all
1752     dialog.run { |response|
1753         if response == Gtk::Dialog::RESPONSE_OK
1754             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1755             $config['browser'] = from_utf8(browser_entry.text)
1756             $config['thumbnails-height'] = thumbnails_height.value
1757             $config['preload-distance'] = preload_distance.value
1758             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1759             if cache_memfree_radio.active?
1760                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1761             else
1762                 $config['cache-memory-use'] = cache_specify_spin.value.to_i * 1024
1763             end
1764             set_cache_memory_use_figure
1765         end
1766     }
1767     dialog.destroy
1768 end
1769
1770 def perform_undo
1771     if $undo_mb.sensitive?
1772         $redo_mb.sensitive = true
1773         if not more_undoes = UndoHandler.undo($statusbar)
1774             $undo_mb.sensitive = false
1775         end
1776     end
1777 end
1778
1779 def perform_redo
1780     if $redo_mb.sensitive?
1781         $undo_mb.sensitive = true
1782         if not more_redoes = UndoHandler.redo($statusbar)
1783             $redo_mb.sensitive = false
1784         end
1785     end
1786 end
1787
1788 def create_menubar    
1789     #- menu
1790     mb = Gtk::MenuBar.new
1791
1792     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1793     filesubmenu = Gtk::Menu.new
1794     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1795     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1796     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1797     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1798     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1799     filemenu.set_submenu(filesubmenu)
1800     mb.append(filemenu)
1801
1802     open.signal_connect('activate') { open_dir_popup }
1803     $execute.signal_connect('activate') { execute }
1804     quit.signal_connect('activate') { try_quit }
1805
1806     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1807     editsubmenu = Gtk::Menu.new
1808     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1809     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1810     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1811     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1812     editmenu.set_submenu(editsubmenu)
1813     mb.append(editmenu)
1814
1815     $undo_mb.signal_connect('activate') { perform_undo }
1816     $redo_mb.signal_connect('activate') { perform_redo }
1817     prefs.signal_connect('activate') { preferences }
1818     
1819     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1820     helpsubmenu = Gtk::Menu.new
1821     helpsubmenu.append(howto = Gtk::ImageMenuItem.new(Gtk::Stock::HELP))
1822     helpsubmenu.append(speed = Gtk::ImageMenuItem.new(utf8(_("Speedup: key shortcuts"))))
1823     speed.image = Gtk::Image.new("#{$FPATH}/images/stock-info-16.png")
1824     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1825     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1826     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1827     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1828     helpmenu.set_submenu(helpsubmenu)
1829     mb.append(helpmenu)
1830
1831     howto.signal_connect('activate') {
1832         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Help</span>
1833
1834 1. Open a directory with <span foreground='darkblue'>File/Open</span>; the classifier will scan it (including subdirectories) and
1835 show thumbnails for all photos and videos at the bottom.
1836
1837 2. You can then navigate through images with the <span foreground='darkblue'>Left/Right</span> keyboard keys, or by <span foreground='darkblue'>clicking</span>
1838 on thumbnails.
1839
1840 3. You may associate a <span foreground='darkblue'>label</span> to each thumbnail. Either hit the <span foreground='darkblue'>Delete</span> key to associate
1841 the built-in <i>to remove</i> label, or hit any alphabetical key to associate a label you define.
1842 The first time you hit a key without any label associated, a popup will ask for the full
1843 name of this label, and what color you want. To clear the current label, hit the <span foreground='darkblue'>Space</span> key.
1844
1845 4. To help you better view what thumbnails are associated to your labels, you may <span foreground='darkblue'>hide</span>
1846 some of them by unchecking the labels checkboxes on the left.
1847
1848 5. Once you're finished reviewing all thumbnails, use <span foreground='darkblue'>File/Execute</span> to execute the desired
1849 actions according to associated labels. You can permanently remove (or not) images with
1850 the <i>to remove</i> label, and copy or move images with the labels you defined.
1851 ")), { :pos_centered => true, :not_transient => true })
1852     }
1853     speed.signal_connect('activate') {
1854         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Key shortcuts</span>
1855
1856 <span foreground='darkblue'>Left/Right</span>: move left and right in images
1857 <span foreground='darkblue'>Enter</span>: 'view' current image: for images, display EXIF data; for videos, play it
1858 <span foreground='darkblue'>Alt-Left/Right</span>: rotate current image clockwise/counter-clockwise
1859 <span foreground='darkblue'>Delete</span>: assign the 'to remove' label on current image
1860 <span foreground='darkblue'>Space</span>: clear any label on current image
1861 <span foreground='darkblue'>Control-z</span>: undo
1862 <span foreground='darkblue'>Control-r</span>: redo
1863 <span foreground='darkblue'>Control-Space</span>: recenter thumbnails on current item
1864
1865 Any alphabetical key will assign (or popup for) the associated label on current image.
1866 ")), { :pos_centered => true, :not_transient => true })
1867     }
1868     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial') }
1869     about.signal_connect('activate') { call_about }
1870
1871
1872     #- no toolbar, to save height
1873
1874     return mb
1875 end
1876
1877 def reset_labels
1878     for child in $labels_vbox.children
1879         $labels_vbox.remove(child)
1880     end
1881     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1882     $labels = {}
1883     $ordered_labels = []
1884     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1885     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1886     $unlabelled_button.active = true
1887     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1888     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1889     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1890     $toremove_button.active = true
1891     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1892     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1893     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1894     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1895 end
1896
1897 def reset_thumbnails
1898     $allentries = []
1899     if $preloader_running
1900         $preloader_force_exit = true
1901     end
1902     for child in $imagesline.children
1903         $imagesline.remove(child)
1904     end
1905     set_imagesline_size_request
1906 end
1907
1908 def set_imagesline_size_request
1909     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + Entry.thumbnails_height/4)
1910 end
1911
1912 def create_main_window
1913
1914     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1915     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1916
1917     mb = create_menubar
1918
1919     main_vbox = Gtk::VBox.new(false, 0)
1920     main_vbox.pack_start(mb, false, false)
1921     mainview_hbox = Gtk::HBox.new
1922     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
1923     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1924     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
1925     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1926     main_vbox.pack_start(mainview_hbox, true, true)
1927     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1928     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1929     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1930     main_vbox.pack_start($imagesline_sw, false, false)
1931     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1932
1933     set_imagesline_size_request
1934
1935     $main_window = create_window
1936     $main_window.add(main_vbox)
1937     $main_window.signal_connect('delete-event') {
1938         try_quit
1939     }
1940
1941     #- read/save size and position of window
1942     if $config['pos-x'] && $config['pos-y']
1943         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1944     else
1945         $main_window.window_position = Gtk::Window::POS_CENTER
1946     end
1947     msg 3, "size: #{$config['width']}x#{$config['height']}"
1948     $main_window.set_default_size(($config['width'] || 800).to_i, ($config['height'] || 600).to_i)
1949     $main_window.signal_connect('configure-event') {
1950         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1951         x, y = $main_window.window.root_origin
1952         width, height = $main_window.window.size
1953         $config['pos-x'] = x
1954         $config['pos-y'] = y
1955         $config['width'] = width
1956         $config['height'] = height
1957         false
1958     }
1959
1960     $main_window.show_all
1961     $loading_progressbar.hide
1962 end
1963
1964
1965 handle_options
1966 read_config
1967 Gtk.init
1968
1969
1970 create_main_window
1971 check_config
1972
1973 if ARGV[0]
1974     if msg = open_dir(*ARGV)
1975         puts msg
1976     else
1977         Gtk.idle_add {
1978             show_entries($allentries)
1979             false
1980         }
1981     end
1982 end
1983 Gtk.main
1984
1985 write_config