Merge branch 'master' of ssh://zarb.org/srv/git/booh
[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) 2004-2010 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) 2005-2010 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 || /usr/bin/vlc %f'
152     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f || /usr/bin/firefox -remote 'openURL(%f,new-window)' || /usr/bin/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, :counter
249     def initialize(name)
250         @name = name
251     end
252 end
253
254 class InterruptedLoading < Exception
255     #- not a StandardError, not catched by a simple rescue
256 end
257
258 def show_pixbufs_present
259     if 3 <= $verbose_level
260         out = 'Full pixbufs ['
261         for entry in $allentries
262             out += entry.pixbuf_full_present? ? 'F' : '.'
263         end
264         msg 3, out + ']'
265     end
266 end
267
268 class Entry
269     @@max_width = nil
270     def Entry.thumbnails_height
271         return $config['thumbnails-height'].to_i
272     end
273
274     attr_accessor :path, :guipath, :type, :angle, :button, :image, :alignment, :removed, :labeled, :loader
275
276     def initialize(path, type, guipath)
277         @path = path
278         @type = type
279         @guipath = guipath
280         if @@max_width.nil?
281             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
282         end
283     end
284
285     def pixbuf_full_present?
286         return ! @pixbuf_full.nil?
287     end
288     def free_pixbuf_full
289         if @pixbuf_full.nil?
290             return false
291         else
292             msg 3, ">>> free_pixbuf_full #{path}"
293             @pixbuf_full = nil
294             return true
295         end
296     end
297
298     def pixbuf_main
299         Gtk.main_iteration while Gtk.events_pending?
300         width, height = $mainview.window.size 
301         width = MainView.get_usable_width(width)
302         height = MainView.get_usable_height(height)
303         if @pixbuf_main.nil? || width != @width || height != @height
304             @width = width
305             @height = height
306             load_into_pixbuf_full  #- make sure it is loaded
307             if @pixbuf_full.nil?
308                 return
309             end
310             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
311                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
312                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
313                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
314                 else
315                     @pixbuf_main = @pixbuf_full
316                 end
317             else
318                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
319                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
320                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
321                 else
322                     @pixbuf_main = @pixbuf_full
323                 end
324             end
325         end
326         return @pixbuf_main
327     end
328     def pixbuf_main_present?
329         return ! @pixbuf_main.nil?
330     end
331     def free_pixbuf_main
332         if @pixbuf_main.nil?
333             return false
334         else
335             msg 3, ">>> free_pixbuf_main #{path}"
336             @pixbuf_main = nil
337             return true
338         end
339     end
340
341     def pixbuf_thumbnail
342         Gtk.main_iteration while Gtk.events_pending?
343         if @pixbuf_thumbnail.nil?
344             if @pixbuf_main
345                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
346                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (Entry.thumbnails_height.to_f/@pixbuf_main.height), Entry.thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
347             else
348                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
349                 @pixbuf_thumbnail = load_into_pixbuf_at_size { |w, h|
350                     if @angle == 0
351                         if h > Entry.thumbnails_height
352                             [ w * Entry.thumbnails_height.to_f/h, Entry.thumbnails_height ]
353                         else
354                             [ w, h ]
355                         end
356                     else
357                         if w > Entry.thumbnails_height
358                             [ Entry.thumbnails_height, h * Entry.thumbnails_height.to_f/w ]
359                         else
360                             [ w, h ]
361                         end
362                     end
363                 }
364             end
365         end
366         return @pixbuf_thumbnail
367     end
368     def free_pixbuf_thumbnail
369         if @pixbuf_thumbnail.nil?
370             return false
371         else
372             msg 3, ">>> free_pixbuf_thumbnail #{path}"
373             @pixbuf_thumbnail = nil
374             return true
375         end
376     end
377
378     def outline_color
379         if removed
380             return $color_red
381         elsif labeled
382             return labeled.color
383         else
384             return nil
385         end
386     end
387
388     def show_bg
389         if outline_color.nil?
390             button.modify_bg(Gtk::StateType::NORMAL, nil)
391             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
392             button.modify_bg(Gtk::StateType::ACTIVE, nil)
393         else
394             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
395             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
396             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
397         end
398     end
399
400     def get_beautified_name
401         if type == 'image'
402             size = get_image_size(path)
403             return _("%s (%sx%s, %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
404                                              size[:x],
405                                              size[:y],
406                                              commify(file_size(path)/1024)]
407         else
408             return _("%s (video - %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
409                                              commify(file_size(path)/1024)]
410         end
411     end
412
413     def cancel_loader
414         if ! @loader.nil?
415             #- avoid unneeded memory allocation
416             @loader.signal_handler_disconnect(@area_prepared_cb)
417             begin
418                 @loader.close
419             rescue
420                 #- ignore loader errors, at that point they are fairly normal, we're canceling a partial load
421             end
422             @loader = nil
423         end
424     end
425
426     private
427     def load_into_pixbuf_full
428         if @pixbuf_full.nil?
429             msg 3, ">>> load_into_pixbuf_full #{path}"
430             @pixbuf_full = load_into_pixbuf_at_size { |w, h|
431                 if @angle == 0
432                     if w > @@max_width
433                         #- save memory and speedup (+35%) loading 
434                         [ w * (factor = @@max_width.to_f/w), h * factor ]
435                     else
436                         [ w, h ]
437                     end
438                 else
439                     if h > @@max_width
440                         [ w * (factor = @@max_width.to_f/h), h * factor ]
441                     else
442                         [ w, h ]
443                     end
444                 end
445             }
446             show_pixbufs_present
447         end
448     end
449
450     def load_into_pixbuf_at_size(&specify_size)
451         if @type == 'video'
452             if @video_image_path.nil?
453                 orig_base = File.basename(path)
454                 tmpdir = gen_video_thumbnail(path, false, 0)
455                 if tmpdir.nil?
456                     return
457                 end
458                 @video_image_path = "#{tmpdir}/00000001.jpg"
459             end
460             image_path = @video_image_path
461         else
462             image_path = @path
463         end
464         if @angle.nil?
465             if @type == 'image'
466                 @angle = guess_rotate(image_path)
467             else
468                 @angle = 0
469             end
470         end
471         begin
472             #- use a pixbuf loader and check Gtk.events_pending? on each chunk, to keep the UI responsive even
473             #- if loaded pictures are several MBs large
474             if @loader.nil?
475                 @loader = Gdk::PixbufLoader.new
476                 @loader.signal_connect('size-prepared') { |l, w, h|
477                     @loader.set_size(*specify_size.call(w, h))
478                 }
479                 @area_prepared_cb = @loader.signal_connect('area-prepared') { @loaded_pixbuf = @loader.pixbuf }
480                 @loader_offset = 0
481             end
482             msg 3, "calling load_not_freezing_ui on #{image_path}, offset #{@loader_offset}"
483             @loader_offset = @loader.load_not_freezing_ui(image_path, @loader_offset)
484             if @loader_offset > 0
485                 #- interrupted
486                 raise InterruptedLoading
487             end
488             @loader = nil
489             if @loaded_pixbuf.nil?
490                 raise "Loaded pixbuf nil - #{path} #{image_path}"
491             end
492         rescue
493             msg 0, "Cannot load #{image_path}: #{$!}"
494             return
495         ensure
496             if @video_image_path && @loader.nil?
497                 File.delete(@video_image_path)
498                 Dir.rmdir(File.dirname(@video_image_path))
499                 @video_image_path = nil
500             end
501         end
502         if @loaded_pixbuf
503             if @angle != 0
504                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
505                 @loaded_pixbuf = rotate_pixbuf(@loaded_pixbuf, @angle)
506             end
507         end
508         retval = @loaded_pixbuf
509         @loaded_pixbuf = nil
510         return retval
511     end
512
513     def to_s
514         @path
515     end
516 end
517
518 $allentries = []
519
520 def gc
521     start = Time.now
522     GC.start
523     msg 3, "GC in #{Time.now - start} s"
524 end
525
526 def free_cache_if_needed
527     i = $allentries.index($mainview.get_shown_entry)
528     return if i.nil?
529     if get_mem > $config['cache-memory-use-figure']
530         msg 3, "too much RSS, triggering GC"
531         gc
532     end
533     if get_mem < $config['cache-memory-use-figure']
534         return
535     end
536     msg 3, "too much RSS, freeing some cache"
537     start = Time.now
538     freed = 0
539     ($allentries.size - 1).downto($config['preload-distance'].to_i + 1) { |j|
540         index = i + j
541         if i + j < $allentries.size
542             $allentries[i + j].free_pixbuf_full
543             if $allentries[i + j].free_pixbuf_main
544                 freed += 1
545             end
546         end
547         if i - j >= 0
548             $allentries[i - j].free_pixbuf_full
549             if $allentries[i - j].free_pixbuf_main
550                 freed += 1
551             end
552         end
553         if freed >= 10
554             gc
555             if get_mem < $config['cache-memory-use-figure'] * 3 / 4
556                 msg 3, "RSS down enough - freeing done in #{Time.now - start} s"
557                 show_pixbufs_present
558                 return
559             end
560             freed = 0
561         end
562     }
563     msg 3, "freeing done in #{Time.now - start} s"
564     show_pixbufs_present
565 end
566
567 def run_preloader_real
568     msg 3, "*** >> main preloading triggered..."
569     if $mainview.get_shown_entry
570         free_cache_if_needed
571         if $config['preload-distance'].to_i == 0
572             return true
573         end
574         index = $allentries.index($mainview.get_shown_entry)
575         index_right = index
576         index_left = index
577         loaded_right = 0
578         loaded_left = 0
579         right_done = false
580         left_done = false
581         loaded = []
582         while ! right_done || ! left_done
583             if ! right_done
584                 index_right += 1
585                 while index_right < $allentries.size && ! visible($allentries[index_right])
586                     index_right += 1
587                 end
588                 if index_right == $allentries.size
589                     right_done = true
590                 else
591                     if ! $allentries[index_right].pixbuf_main_present?
592                         msg 3, "preloading #{$allentries[index_right].path}"
593                         begin
594                             $allentries[index_right].pixbuf_main
595                         rescue InterruptedLoading
596                             msg 3, "*** >>>> interrupted, rerun"
597                             return false
598                         end
599                     end
600                     loaded << index_right
601                     loaded_right += 1
602                     if loaded_right == $config['preload-distance'].to_i
603                         right_done = true
604                     end
605                 end
606             end
607
608             if ! left_done
609                 index_left -= 1
610                 while index_left >= 0 && ! visible($allentries[index_left])
611                     index_left -= 1
612                 end
613                 if index_left == -1
614                     left_done = true
615                 else
616                     if ! $allentries[index_left].pixbuf_main_present?
617                         msg 3, "preloading #{$allentries[index_left].path}"
618                         begin
619                             $allentries[index_left].pixbuf_main
620                         rescue InterruptedLoading
621                             msg 3, "*** >>>> interrupted, rerun"
622                             return false
623                         end
624                     end
625                     loaded << index_left
626                     loaded_left += 1
627                     if loaded_left == $config['preload-distance'].to_i
628                         left_done = true
629                     end
630                 end
631             end
632
633             #- in case just loaded another directory
634             if $preloader_force_exit
635                 $preloader_force_exit = false
636                 return true
637             end
638             #- in case moved fast
639             if index != $allentries.index($mainview.get_shown_entry)
640                 msg 3, "*** >>>> moved already, rerun"
641                 return false
642             end
643         end
644     end
645     msg 3, "*** << main preloading finished"
646     return true
647 end
648
649 def run_preloader
650     if ! $preloader_allowed
651         msg 3, "*** preloader not yet allowed"
652         return
653     end
654
655     if $preloader_running
656         msg 3, "preloader already running"
657         return
658     end
659     msg 3, "run preloader"
660     $preloader_running = true
661     Gtk.idle_add {
662         msg 3, "begin preloader from timeout "
663         if run_preloader_real
664             $preloader_running = false
665             false
666         else
667             true
668         end
669     }
670 end
671
672 class MainView < Gtk::DrawingArea
673
674     @@borders_thickness = 5
675     @@borders_length = 25
676     @@redraw_pending = nil
677
678     def MainView.borders_thickness
679         return @@borders_thickness
680     end
681
682     def MainView.get_usable_width(available_width)
683         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
684     end
685
686     def MainView.get_usable_height(available_height)
687         return available_height - @@borders_thickness * 2
688     end
689     
690     def initialize
691         super()
692         signal_connect('expose-event') { draw }
693         signal_connect('configure-event') { update_shown }
694     end
695
696     def try_show_entry(entry)
697         if entry && entry.button
698             if entry.button.has_focus?
699                 redraw
700             else
701                 entry.button.grab_focus
702             end
703         end
704     end
705
706     def set_shown_entry(entry)
707         t1 = Time.now
708         if entry && entry == @entry
709             return
710         end
711         if entry && ! entry.button
712             #- not loaded yet
713             return
714         end
715         @entry = entry
716         @entry and msg 3, "*** set entry to #{@entry.path}"
717         redraw
718         msg 3, "entry shown in: #{Time.now - t1} s"
719     end
720
721     def get_shown_entry
722         return @entry
723     end
724
725     def show_next_entry(entry)
726         index = $allentries.index(entry)
727         if index < $allentries.size - 1
728             index += 1
729         end
730         while index < $allentries.size - 1 && $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible?
731             index += 1
732         end
733         while $allentries[index] && $allentries[index].button && ! $allentries[index].button.visible? && index > 0
734             index -= 1
735         end
736         if index < $allentries.size && $allentries[index] && $allentries[index].button && $allentries[index].button.visible?
737             try_show_entry($allentries[index])
738             return
739         end
740         #- find a fallback before
741         while index < $allentries.size && index > 0 && $allentries[index] && (! $allentries[index].button || ! $allentries[index].button.visible?)
742             index -= 1
743         end
744         if index < $allentries.size && index > 0 && $allentries[index] && $allentries[index].button && $allentries[index].button.visible?
745             try_show_entry($allentries[index])
746         end
747     end
748
749     def redraw
750         if @@redraw_pending
751             msg 3, "redraw already pending"
752             return
753         end
754         msg 3, "redraw"
755         @@redraw_pending = Gtk.idle_add {
756             msg 3, "begin redraw from timeout "
757             begin
758                 msg 3, "try redraw from timeout"
759                 redraw_real
760                 @@redraw_pending = nil
761                 run_preloader
762                 false
763             rescue InterruptedLoading
764                 msg 3, "interrupted, will retry"
765                 true
766             end
767         }
768     end
769
770     def redraw_real
771         @entry and sb_msg(_("Selected %s") % @entry.get_beautified_name)
772         if ! update_shown
773             return
774         end
775         w, h = window.size
776         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
777         window.clear
778         draw
779         window.end_paint
780     end
781
782     def update_shown
783         if @entry
784             msg 3, "################################################ trying to show #{@entry.path}"
785             pixbuf = @entry.pixbuf_main
786             if pixbuf
787                 @pixbuf = pixbuf
788                 width, height = window.size 
789                 @xpos = (width - @pixbuf.width)/2
790                 @ypos = (height - @pixbuf.height)/2
791                 return true
792             else
793                 return false
794             end
795         else
796             @pixbuf = nil
797             return true
798         end
799     end
800
801     def draw
802         if @pixbuf
803             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
804             if @entry && @entry.type == 'video'
805                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
806             end
807             if @entry && ! @entry.outline_color.nil?
808                 gc = Gdk::GC.new(window)
809                 colormap.alloc_color(@entry.outline_color, false, true)
810                 gc.set_foreground(@entry.outline_color)
811                 if @entry.type == 'video'
812                     xleft = @xpos - $videoborder_pixbuf.width
813                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
814                 else
815                     xleft = @xpos
816                     xright = @xpos + @pixbuf.width
817                 end
818                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
819                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
820                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
821                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
822                                                [xleft - @@borders_thickness, @ypos - 1],
823                                                [xleft - 1, @ypos - 1],
824                                                [xleft - 1, @ypos + @pixbuf.height + 1],
825                                                [xright + 1, @ypos + @pixbuf.height + 1],
826                                                [xright + 1, @ypos - 1],
827                                                [xleft - @@borders_thickness, @ypos - 1]])
828             end
829         end
830     end
831 end
832
833 def autoscroll_if_needed(button, center)
834     xpos_left = button.allocation.x
835     xpos_right = button.allocation.x + button.allocation.width
836     hadj = $imagesline_sw.hadjustment
837     current_minx_visible = hadj.value
838     current_maxx_visible = hadj.value + hadj.page_size
839     if ! center
840         if xpos_left < current_minx_visible
841             #- autoscroll left
842             newval = hadj.value - (current_minx_visible - xpos_left)
843             hadj.value = newval
844         elsif xpos_right > current_maxx_visible
845             #- autoscroll right
846             newval = hadj.value + (xpos_right - current_maxx_visible)
847             if newval > hadj.upper - hadj.page_size
848                 newval = hadj.upper - hadj.page_size
849             end
850             hadj.value = newval
851         end
852     else
853         hadj.value = clamp((xpos_left + xpos_right) / 2 - hadj.page_size / 2, 0, hadj.upper - hadj.page_size)
854     end
855 end
856
857 def show_popup(parent, msg, *options)
858     dialog = Gtk::Dialog.new
859     if options[0]
860         options = options[0]
861     else
862         options = {}
863     end
864     if options[:title]
865         dialog.title = options[:title]
866     else
867         dialog.title = utf8(_("Booh message"))
868     end
869     lbl = Gtk::Label.new
870     if options[:nomarkup]
871         lbl.text = msg
872     else
873         lbl.markup = msg
874     end
875     if options[:centered]
876         lbl.set_justify(Gtk::Justification::CENTER)
877     end
878     if options[:selectable]
879         lbl.selectable = true
880     end
881     if options[:scrolled]
882         sw = Gtk::ScrolledWindow.new(nil, nil)
883         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
884         sw.add_with_viewport(lbl)
885         dialog.vbox.add(sw)
886         dialog.set_default_size(500, 600)
887     else
888         dialog.vbox.add(lbl)
889         dialog.set_default_size(200, 120)
890     end
891     if options[:bottomwidget]
892         dialog.vbox.add(options[:bottomwidget])
893     end
894     if options[:okcancel]
895         cancel = dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
896         dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
897     elsif options[:yestoall]
898         cancel = dialog.add_button(Gtk::Stock::NO, Gtk::Dialog::RESPONSE_NO)
899         if ! options[:bottomwidget]
900             cancel.grab_focus
901         end
902         dialog.add_button(Gtk::Stock::YES, Gtk::Dialog::RESPONSE_YES)
903         dialog.add_button(utf8(_("Yes to all")), Gtk::Dialog::RESPONSE_ACCEPT)
904     else
905         ok = dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK).grab_focus
906         if ! options[:bottomwidget]
907             ok.grab_focus
908         end
909     end
910
911     if options[:pos_centered]
912         dialog.window_position = Gtk::Window::POS_CENTER
913     else
914         dialog.window_position = Gtk::Window::POS_MOUSE
915     end
916
917     if options[:linkurl]
918         linkbut = Gtk::Button.new('')
919         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
920         linkbut.signal_connect('clicked') {
921             open_url(options[0][:linkurl] + '/index.html')
922             dialog.response(Gtk::Dialog::RESPONSE_OK)
923             set_mousecursor_normal
924         }
925         linkbut.relief = Gtk::RELIEF_NONE
926         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
927         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
928         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
929     end
930
931     dialog.show_all
932
933     if options[:stuff_connector]
934         options[:stuff_connector].call({ :dialog => dialog })
935     end
936                                         
937     if !options[:not_transient]
938         dialog.transient_for = parent
939         dialog.run { |response|
940             if options[:data_getter]
941                 options[:data_getter].call
942             end
943             dialog.destroy
944             if options[:okcancel]
945                 return response == Gtk::Dialog::RESPONSE_OK
946             elsif options[:yestoall]
947                 return response == Gtk::Dialog::RESPONSE_YES ? 'yes' : response == Gtk::Dialog::RESPONSE_ACCEPT ? 'yestoall' : 'no'
948             end
949         }
950     else
951         dialog.signal_connect('response') { dialog.destroy }
952     end
953 end
954
955 def view_entry(entry)
956     if entry.type == 'image'
957         show_popup($main_window,
958                    utf8(`exif -m '#{entry.path}'`),
959                    { :title => utf8(_("EXIF data of %s") % File.basename(entry.path)), :nomarkup => true, :scrolled => true, :not_transient => true })
960     else
961         cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
962         msg 2, cmd
963         system(cmd)
964     end
965 end
966
967 def update_counters
968     value = 0
969     $allentries.each { |entry|
970         if ! entry.removed && entry.labeled.nil?
971             value += 1
972         end
973     }
974     $unlabelled_counter.set_markup('<tt>' + value.to_s + '</tt>')
975     value = 0
976     $allentries.each { |entry|
977         if entry.removed 
978             value += 1
979         end
980     }
981     $toremove_counter.set_markup('<tt>' + value.to_s + '</tt>')
982     $labels.values.each { |label|
983         value = 0
984         $allentries.each { |entry|
985             if entry.labeled == label
986                 value += 1
987             end
988         }
989         label.counter.set_markup('<tt>' + value.to_s + '</tt>')
990     }
991 end
992
993 def thumbnail_keypressed(entry, event)
994     if event.state & Gdk::Window::MOD1_MASK != 0
995         #- ALT pressed: Alt-Left and Alft-Right rotate
996         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
997             if event.keyval == Gdk::Keyval::GDK_Left
998                 entry.angle = (entry.angle - 90) % 360
999             else
1000                 entry.angle = (entry.angle + 90) % 360
1001             end
1002             entry.free_pixbuf_full
1003             entry.free_pixbuf_main
1004             entry.free_pixbuf_thumbnail
1005             show_pixbufs_present
1006             $mainview.redraw
1007             entry.image.pixbuf = entry.pixbuf_thumbnail
1008             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
1009                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
1010             end
1011         end
1012
1013     elsif event.state & Gdk::Window::CONTROL_MASK != 0
1014         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo, Ctrl-space for recentre
1015         if event.keyval == Gdk::Keyval::GDK_z
1016             perform_undo
1017         end
1018         if event.keyval == Gdk::Keyval::GDK_r
1019             perform_redo
1020         end
1021         if event.keyval == Gdk::Keyval::GDK_space
1022             shown = $mainview.get_shown_entry
1023             shown and autoscroll_if_needed(shown.button, true)
1024         end
1025
1026     else
1027         removed_before = entry.removed
1028         label_before = entry.labeled
1029
1030         if event.keyval == Gdk::Keyval::GDK_Delete
1031             if ! FileTest.writable?(entry.path)
1032                 show_popup($main_window, utf8(_("Notice: no write access to '%s', permission will be denied at execute step.") % entry.path))
1033             end
1034             entry.removed = true
1035             entry.labeled = nil
1036             entry.show_bg
1037             update_visibility(entry)
1038             update_counters
1039             $mainview.show_next_entry(entry)
1040
1041             save_undo(_("set for removal"),
1042                       proc {
1043                           entry.removed = removed_before
1044                           entry.labeled = label_before
1045                           entry.show_bg
1046                           update_visibility(entry)
1047                           update_counters
1048                           if entry.button.visible?
1049                               $mainview.try_show_entry(entry)
1050                           end
1051                           proc {
1052                               entry.removed = true
1053                               entry.labeled = nil
1054                               entry.show_bg
1055                               update_visibility(entry)
1056                               update_counters
1057                               if entry.button.visible?
1058                                   $mainview.try_show_entry(entry)
1059                               end
1060                           }
1061                       })
1062
1063         elsif event.keyval == Gdk::Keyval::GDK_space
1064             if entry.labeled
1065                 msg = _("Cleared label")
1066             elsif entry.removed
1067                 msg = _("Cleared set for removal")
1068             end
1069             entry.removed = false
1070             entry.labeled = nil
1071             entry.show_bg
1072             update_counters
1073             $mainview.show_next_entry(entry)
1074
1075             save_undo(msg,
1076                       proc {
1077                           entry.removed = removed_before
1078                           entry.labeled = label_before
1079                           entry.show_bg
1080                           update_counters
1081                           $mainview.try_show_entry(entry)
1082                           proc {
1083                               entry.removed = false
1084                               entry.labeled = nil
1085                               entry.show_bg
1086                               update_counters
1087                               $mainview.try_show_entry(entry)
1088                           }
1089                       })
1090
1091         elsif event.keyval == Gdk::Keyval::GDK_Return
1092             view_entry(entry)
1093
1094         elsif event.keyval == Gdk::Keyval::GDK_Home
1095             index = 0
1096             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1097                 index += 1
1098             end
1099             if $allentries[index] && $allentries[index].button
1100                 $allentries[index].button.grab_focus
1101             end
1102
1103         elsif event.keyval == Gdk::Keyval::GDK_End
1104             index = $allentries.size - 1
1105             while $allentries[index] && ! $allentries[index].button
1106                 #- not yet loaded
1107                 index -= 1
1108             end
1109             while $allentries[index] && $allentries[index].button && !visible($allentries[index])
1110                 index -= 1
1111             end
1112             if $allentries[index] && $allentries[index].button
1113                 $allentries[index].button.grab_focus
1114             end
1115
1116         else
1117             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
1118             if char =~ /^[a-zA-z0-9]$/
1119                 label = $labels[char]
1120                 
1121                 if label.nil?
1122                     vb = Gtk::VBox.new(false, 0)
1123                     vb.pack_start(labelentry = Gtk::Entry.new.set_text(char), false, false)
1124                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
1125                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
1126                     bt.signal_connect('color-set') { color = bt.color }
1127                     text = nil
1128                     labelentry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
1129                         while $labels.has_key?(labelentry.text[0,1])
1130                             labelentry.text = labelentry.text.sub(/./, '')
1131                         end
1132                     }
1133                     if show_popup($main_window,
1134                                   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,
1135                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = labelentry.text },
1136                                     :stuff_connector => proc { |stuff| labelentry.select_region(0, 0)
1137                                                                        labelentry.position = -1
1138                                                                        labelentry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
1139                         if text.length > 0
1140                             char = text[0,1]  #- in case it changed
1141                             label = Label.new(text)
1142                             label.color = color
1143                             $labels[char] = label
1144                             $ordered_labels << label
1145                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
1146                             $labels_vbox.pack_start(Gtk::HBox.new(false, 5).pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl))).
1147                                                                             pack_start(Gtk::Label.new, true, true).
1148                                                                             pack_start(label.counter = Gtk::Label.new.set_markup('<tt>0</tt>'), false, false).show_all)
1149                             label.button.active = true
1150                             label.button.signal_connect('toggled') { update_all_visibilities }
1151                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
1152                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
1153                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
1154                         end
1155                     end
1156                 end
1157
1158                 if label
1159                     entry.removed = false
1160                     entry.labeled = label
1161                     entry.show_bg
1162                     update_visibility(entry)
1163                     update_counters
1164                     $mainview.show_next_entry(entry)
1165
1166                     save_undo(_("set label"),
1167                               proc {
1168                                   entry.removed = removed_before
1169                                   entry.labeled = label_before
1170                                   entry.show_bg
1171                                   update_visibility(entry)
1172                                   update_counters
1173                                   if entry.button.visible?
1174                                       $mainview.try_show_entry(entry)
1175                                   end
1176                                   proc {
1177                                       entry.removed = false
1178                                       entry.labeled = label
1179                                       entry.show_bg
1180                                       update_visibility(entry)
1181                                       update_counters
1182                                       if entry.button.visible?
1183                                           $mainview.try_show_entry(entry)
1184                                       end
1185                                   }
1186                               })
1187                 end
1188             end
1189         end
1190     end
1191 end
1192
1193 def sb_msg(msg)
1194     $statusbar.pop(0)
1195     if msg
1196         $statusbar.push(0, utf8(msg))
1197     end
1198 end
1199
1200 def show_entry(entry, i, tips)
1201     #- scope entry
1202     #msg 3, "showing entry #{entry}"
1203     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
1204     if entry.type == 'video'
1205         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1206                                            pack_start(entry.image).
1207                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
1208         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1209         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1210     else
1211         entry.button = Gtk::Button.new.add(entry.image)
1212     end
1213     tips.set_tip(entry.button, entry.get_beautified_name, nil)
1214     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
1215     entry.button.signal_connect('clicked') {
1216         shown = $mainview.get_shown_entry
1217         if shown != entry
1218             shown and shown.alignment.set(0.5, 1, 0, 0)
1219             entry.alignment.set(0.5, 0, 0, 0)
1220             autoscroll_if_needed(entry.button, false)
1221             $mainview.set_shown_entry(entry)
1222         end
1223     }
1224     entry.button.signal_connect('button-press-event') { |w, event|
1225         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
1226             video_view(entry)
1227         end
1228     }
1229     entry.button.signal_connect('focus-in-event') { entry.button.clicked }
1230     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
1231     if i == 0
1232         entry.button.grab_focus
1233     end
1234     update_visibility(entry)
1235 end
1236
1237 def show_entries(allentries)
1238     update_counters
1239     sb_msg(_("Loading images..."))
1240     $loading_progressbar.fraction = 0
1241     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
1242     $loading_progressbar.show
1243     t1 = Time.now
1244     total_loaded_files = 0
1245     total_loaded_size = 0
1246     i = 0
1247     tips = Gtk::Tooltips.new
1248     while i < allentries.size
1249         begin
1250             entry = allentries[i]
1251             if i == 0
1252                 loaded_pixbuf = entry.pixbuf_main
1253             else
1254                 loaded_pixbuf = entry.pixbuf_thumbnail
1255             end
1256         rescue InterruptedLoading
1257             redo
1258         end
1259
1260         if $allentries != allentries
1261             #- loaded another directory while this one was not yet finished
1262             msg 3, "allentries differ, stopping this deprecated load"
1263             return
1264         end
1265
1266         if loaded_pixbuf
1267             show_entry(entry, i, tips)
1268             if $allentries != allentries
1269                 #- loaded another directory while this one was not yet finished
1270                 msg 3, "allentries differ, stopping this deprecated load"
1271                 return
1272             end
1273
1274             total_loaded_size += file_size(entry.path)
1275             total_loaded_files += 1
1276             i += 1
1277             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1278                 #- when we're at preload distance, begin preloading to preload distance
1279                 begin
1280                     allentries[i - $config['preload-distance'].to_i].pixbuf_main
1281                 rescue InterruptedLoading
1282                 end
1283             end
1284             if i == $config['preload-distance'].to_i * 2 + 1
1285                 #- when we're after double preload distance, activate normal preloading
1286                 $preloader_allowed = true
1287             end
1288             
1289         else
1290             allentries.delete_at(i)
1291         end
1292         $loading_progressbar.fraction = i.to_f / allentries.size
1293         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1294         if $quit
1295             return
1296         end
1297         if i % 25 == 0
1298             gc
1299         end
1300     end
1301     $preloader_allowed = true
1302     if i <= $config['preload-distance'].to_i * 2
1303         #- not yet preloaded correctly
1304         run_preloader
1305     end
1306     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1307     $loading_progressbar.hide
1308     $execute.sensitive = true
1309 end
1310
1311 def reset_all
1312     reset_labels
1313     reset_thumbnails
1314     $mainview.set_shown_entry(nil)
1315     sb_msg(nil)
1316     $preloader_allowed = false
1317     $execute.sensitive = false
1318 end
1319
1320 def open_dir(*paths)
1321     #- remove visual stuff, so that user will see something is happening
1322     reset_all
1323     sb_msg(_("Scanning source directory... %s") % "")
1324     Gtk.main_iteration while Gtk.events_pending?
1325
1326     for path in paths
1327         path = File.expand_path(path.sub(%r|/$|, ''))
1328         $workingdir = path
1329         entries = []
1330         if File.directory?(path)
1331             examined_dirs = `find '#{path}' -type d -follow`.split("\n").sort.collect { |v| v.chomp }
1332             #- validate first
1333             examined_dirs.each { |dir|
1334                 if dir =~ /'/
1335                     return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1336                 end
1337                 begin
1338                     Dir.entries(dir).each { |file|
1339                         if file =~ /'/ && type = entry2type(file) && type == 'video'
1340                             return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1341                         end
1342                     }
1343                 rescue
1344                     puts "Failed to open directory #{dir}: #{$!}"
1345                 end
1346             }
1347             
1348             #- scan for populate second
1349             examined_dirs.each { |dir|
1350                 if File.basename(dir) =~ /^\./
1351                     msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1352                     next
1353                 end
1354                 begin
1355                     entries += Dir.entries(dir).collect { |file| File.join(dir, file) }
1356                 rescue
1357                     #- already puts'ed 10 lines upper
1358                 end
1359                 sb_msg(_("Scanning source directory... %s") % (_("%d entries found") % entries.size))
1360                 Gtk.main_iteration while Gtk.events_pending?
1361             }
1362
1363         else
1364             entries << path
1365         end
1366
1367         if $sort_by_exif_date
1368             dates = {}
1369             entries.each { |file|
1370                 date_time = Exif.datetimeoriginal(file)
1371                 if ! date_time.nil?
1372                     dates[file] = date_time
1373                 end
1374             }
1375             entries = smartsort(entries, dates)
1376         else
1377             entries.sort!
1378         end
1379         entries.each { |file|
1380             type = entry2type(file)
1381             if type
1382                 if File.directory?(path)
1383                     $allentries << Entry.new(file, type, file[path.length + 1 .. -1])
1384                 else
1385                     $allentries << Entry.new(file, type, file)
1386                 end
1387             end
1388         }
1389     end
1390     return nil
1391 end
1392
1393 def open_dir_popup
1394     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1395                                     nil,
1396                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1397                                     nil,
1398                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1399     fc.transient_for = $main_window
1400     if $workingdir
1401         fc.current_folder = $workingdir
1402     end
1403     ok = false
1404     load = false
1405     while !ok
1406         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1407             msg = open_dir(fc.filename)
1408             if msg
1409                 show_popup(fc, msg)
1410                 ok = false
1411             else
1412                 ok = true
1413                 load = true
1414             end
1415         else
1416             ok = true
1417         end
1418     end
1419     fc.destroy
1420     if load
1421         show_entries($allentries)
1422     end
1423 end
1424
1425 def try_quit(*options)
1426     if ! $allentries.detect { |e| e.removed || e.labeled } || show_popup($main_window,
1427                                                                          utf8(_("You have not executed the classification. Are you sure you want to quit?")),
1428                                                                          { :okcancel => true })
1429         Gtk.main_quit
1430         $quit = true
1431         return false
1432     else
1433         return true
1434     end
1435 end
1436
1437 def execute
1438     dialog = Gtk::Dialog.new
1439     dialog.title = utf8(_("Booh message"))
1440
1441     vb1 = Gtk::VBox.new(false, 5)
1442     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!")))
1443     vb1.pack_start(label, false, false)
1444
1445     lastpath = $workingdir
1446
1447     table = Gtk::Table.new(0, 0, false)
1448     table.set_row_spacings(5)
1449     table.set_column_spacings(5)
1450     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)
1451     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)
1452     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)
1453     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)
1454     add_row = proc { |row, name, color, truthproc, normal|
1455         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)),
1456                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1457         counter = 0
1458         examples = Gtk::HBox.new(false, 5)
1459         $allentries.each { |entry|
1460             if truthproc.call(entry)
1461                 counter += 1
1462                 if counter < 4
1463                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1464                     if entry.type == 'video'
1465                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1466                                                   pack_start(thumbnail).
1467                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1468                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1469                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1470                     end
1471                     examples.pack_start(thumbnail, false, false)
1472                 elsif counter == 4
1473                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1474                 end
1475             end
1476         }
1477         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1478         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1479
1480         if counter == 0
1481             return {}
1482         end
1483
1484         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1485         iter = combostore.append
1486         if normal
1487             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1488             iter[1] = utf8(_("Copy to:"))
1489             iter = combostore.append
1490             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1491             iter[1] = utf8(_("Move to:"))
1492         else
1493             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1494             iter[1] = utf8(_("Permanently remove"))
1495         end
1496         iter = combostore.append
1497         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1498         iter[1] = utf8(_("Do nothing"))
1499         combo = Gtk::ComboBox.new(combostore)
1500         combo.active = 0
1501         renderer = Gtk::CellRendererPixbuf.new
1502         combo.pack_start(renderer, false)
1503         combo.set_attributes(renderer, :pixbuf => 0)
1504         renderer = Gtk::CellRendererText.new
1505         combo.pack_start(renderer, true)
1506         combo.set_attributes(renderer, :text => 1)
1507
1508         if normal
1509             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1510             pathbutton.signal_connect('clicked') {
1511                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1512                                                 nil,
1513                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1514                                                 nil,
1515                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1516                 fc.transient_for = dialog
1517                 if lastpath
1518                     fc.current_folder = lastpath
1519                 end
1520                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1521                     pathlabel.text = fc.filename
1522                     pathlabel.set_alignment(0, 0.5)
1523                 end
1524                 lastpath = fc.filename
1525                 fc.destroy
1526             }
1527             combo.signal_connect('changed') {
1528                 pathbutton.sensitive = combo.active <= 1
1529             }
1530             vb = Gtk::VBox.new(false, 5)
1531             vb.pack_start(combo, false, false)
1532             vb.pack_start(pathbutton, false, false)
1533             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1534             { :combo => combo, :pathlabel => pathlabel }
1535         else
1536             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1537             { :combo => combo }
1538         end
1539     }
1540     stuff = {}
1541     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1542     $ordered_labels.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1543     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1544
1545     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1546     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1547     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 ]))
1548     if toremove_amount > 0
1549         vb1.pack_start(check_removal, false, false)
1550         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1551             check_removal.sensitive = widget.active == 0
1552         }
1553     end
1554
1555     dialog.vbox.add(vb1)
1556
1557     dialog.set_default_size(800, 600)
1558     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1559     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1560     dialog.window_position = Gtk::Window::POS_MOUSE
1561     dialog.transient_for = $main_window
1562
1563     dialog.show_all
1564
1565     while true
1566         dialog.run { |response|        
1567             if response == Gtk::Dialog::RESPONSE_OK
1568                 problem = false
1569                 if toremove_amount > 0 && stuff['toremove'][:combo].active == 0
1570                     if ! check_removal.active?
1571                         show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1572                         problem = true
1573                         break
1574                     end
1575                     $allentries.each { |entry|
1576                         if entry.removed
1577                             if ! FileTest.writable?(entry.path)
1578                                 show_popup(dialog, utf8(_("Sorry, permission denied to remove '%s'.") % [ entry.path ]))
1579                                 problem = true
1580                                 break
1581                             end
1582                         end
1583                     }
1584                 end
1585                 label2entries = {}
1586                 $labels.values.each { |label| label2entries[label] = [] }
1587                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1588                 stuff.keys.each { |key|
1589                     if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1590                         destination = stuff[key][:pathlabel].text
1591                         if destination[0] != ?/
1592                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1593                             problem = true
1594                             break
1595                         end
1596                         begin
1597                             Dir.mkdir(destination)
1598                         rescue
1599                         end
1600                         begin
1601                             st = File.stat(destination)
1602                         rescue
1603                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1604                             problem = true
1605                             break
1606                         end
1607                         if ! st.directory? || ! writable(destination)
1608                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1609                             problem = true
1610                             break
1611                         end
1612                         label2entries[key].each { |entry|
1613                             begin
1614                                 File.stat(File.join(destination, File.basename(entry.path)))
1615                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1616                                 problem = true
1617                                 break
1618                             rescue
1619                             end
1620                         }
1621                         if stuff[key][:combo].active == 1
1622                             label2entries[key].each { |entry|
1623                                 if ! FileTest.writable?(entry.path)
1624                                     show_popup(dialog, utf8(_("Sorry, permission denied to move '%s'.") % [ entry.path ]))
1625                                     problem = true
1626                                     break
1627                                 end
1628                             }
1629                         end
1630                         if problem
1631                             break
1632                         end
1633                     end
1634                 }
1635                 if ! problem
1636                     begin
1637                         moved = 0
1638                         copied = 0
1639                         ignored_errors = []
1640                         stuff.keys.each { |key|
1641                             if key.is_a?(Label) && stuff[key][:combo] && stuff[key][:combo].active <= 1
1642                                 destination = stuff[key][:pathlabel].text
1643                                 label2entries[key].each { |entry|
1644                                     if stuff[key][:combo].active == 0
1645                                         result = `cp -dp '#{entry.path}' '#{destination}' 2>&1`
1646                                     elsif stuff[key][:combo].active == 1
1647                                         result = `mv '#{entry.path}' '#{destination}' 2>&1`
1648                                     end
1649                                     if $?.exitstatus > 0
1650                                         simplified_error = result.sub(/#{Regexp.quote(destination + '/' + File.basename(entry.path))}/, '').  #'
1651                                                                   sub(/#{Regexp.quote(entry.path)}/, '').
1652                                                                   sub(/#{Regexp.quote(File.basename(entry.path))}/, '')
1653                                         if ! ignored_errors.include?(simplified_error)
1654                                             response = show_popup($main_window,
1655                                                                   utf8(_("Failure:\n\n%s\nDo you wish to continue?" % result)),
1656                                                                   { :yestoall => true })
1657                                             if response == 'no'
1658                                                 raise "failure on '#{entry.path}'"
1659                                             elsif response == 'yestoall'
1660                                                 ignored_errors << simplified_error
1661                                             end
1662                                         end
1663                                     else
1664                                         if stuff[key][:combo].active == 0
1665                                             copied += 1
1666                                         else
1667                                             moved += 1
1668                                         end
1669                                     end
1670                                 }
1671                             end
1672                         }
1673                         removed = 0
1674                         if stuff['toremove'][:combo] && stuff['toremove'][:combo].active == 0
1675                             $allentries.each { |entry|
1676                                 if entry.removed
1677                                     File.delete(entry.path)
1678                                     removed += 1
1679                                 end
1680                             }
1681                         end
1682                     rescue
1683                         msg 1, "woops: #{$!}\n" + $@.join("\n")
1684                     end
1685                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1686                     dialog.destroy
1687                     reset_all
1688                     return
1689                 end
1690
1691             else
1692                 dialog.destroy
1693                 return
1694             end
1695         }
1696     end
1697 end
1698
1699 def visible(entry)
1700     if ! entry
1701         #- just "executed"
1702         return
1703     end
1704     if ! entry.button
1705         #- not yet loaded
1706         return
1707     end
1708     if entry.labeled
1709         if entry.labeled.button.active?
1710             return true
1711         else
1712             return false
1713         end
1714     elsif entry.removed
1715         if $toremove_button.active?
1716             return true
1717         else
1718             return false
1719         end
1720     else
1721         if $unlabelled_button.active?
1722             return true
1723         else
1724             return false
1725         end
1726     end
1727 end
1728
1729 def update_visibility(entry)
1730     v = visible(entry)
1731     if v.nil?
1732         return
1733     end
1734     if v
1735         entry.button.show
1736     else
1737         entry.button.hide
1738     end
1739 end
1740         
1741 def update_all_visibilities_aux
1742     $allentries.each { |entry|
1743         update_visibility(entry)
1744     }
1745     shown = $mainview.get_shown_entry
1746     shown or return
1747     while shown.button && ! shown.button.visible? && shown != $allentries.last
1748         shown = $allentries[$allentries.index(shown) + 1]
1749     end 
1750     if shown.button && shown.button.visible?
1751         shown.button.grab_focus
1752         return
1753     end
1754     $allentries.reverse.each { |entry|
1755         if entry.button && entry.button.visible?
1756             entry.button.grab_focus
1757             return
1758         end
1759     }
1760 end
1761
1762 def update_all_visibilities
1763     update_all_visibilities_aux
1764     Gtk.main_iteration while Gtk.events_pending?
1765     shown = $mainview.get_shown_entry
1766     shown and autoscroll_if_needed(shown.button, false)
1767 end
1768
1769
1770 def preferences
1771     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1772                              $main_window,
1773                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1774                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1775                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1776
1777     tooltips = Gtk::Tooltips.new
1778
1779     table_y = 0
1780
1781     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1782     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1783                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1784     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1785                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1786     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1787
1788     table_y += 1
1789     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1790                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1791     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1792                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1793     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1794
1795     table_y += 1
1796     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Thumbnails height: ")))),
1797                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1798     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(thumbnails_height = Gtk::SpinButton.new(32, 256, 16).set_value($config['thumbnails-height'].to_i)),
1799                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1800     tooltips.set_tip(thumbnails_height, utf8(_("The desired height of the thumbnails in the thumbnails line of the bottom")), nil)
1801
1802     table_y += 1
1803     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1804                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1805     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)),
1806                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1807     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1808
1809     table_y += 1
1810     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1811                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1812     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1813                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1814     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1815                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1816                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1817     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1818     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1819     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1820                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1821                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1822     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1823     cache_memfree_radio.signal_connect('toggled') {
1824         if cache_memfree_radio.active?
1825             cache_memfree_label.sensitive = true
1826             cache_specify_label.sensitive = false
1827         else
1828             cache_specify_label.sensitive = true
1829             cache_memfree_label.sensitive = false
1830         end
1831     }
1832     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1833     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1834         cache_memfree_spin.value = $1.to_i
1835     else
1836         cache_specify_spin.value = $config['cache-memory-use'].to_i / 1024
1837     end
1838
1839     table_y += 1
1840     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1841                0, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1842     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1843     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1844
1845     dialog.vbox.show_all
1846     dialog.run { |response|
1847         if response == Gtk::Dialog::RESPONSE_OK
1848             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1849             $config['browser'] = from_utf8(browser_entry.text)
1850             $config['thumbnails-height'] = thumbnails_height.value
1851             $config['preload-distance'] = preload_distance.value
1852             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1853             if cache_memfree_radio.active?
1854                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1855             else
1856                 $config['cache-memory-use'] = cache_specify_spin.value.to_i * 1024
1857             end
1858             set_cache_memory_use_figure
1859         end
1860     }
1861     dialog.destroy
1862 end
1863
1864 def perform_undo
1865     if $undo_mb.sensitive?
1866         $redo_mb.sensitive = true
1867         if not more_undoes = UndoHandler.undo($statusbar)
1868             $undo_mb.sensitive = false
1869         end
1870     end
1871 end
1872
1873 def perform_redo
1874     if $redo_mb.sensitive?
1875         $undo_mb.sensitive = true
1876         if not more_redoes = UndoHandler.redo($statusbar)
1877             $redo_mb.sensitive = false
1878         end
1879     end
1880 end
1881
1882 def create_menubar    
1883     #- menu
1884     mb = Gtk::MenuBar.new
1885
1886     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1887     filesubmenu = Gtk::Menu.new
1888     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1889     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1890     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1891     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1892     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1893     filemenu.set_submenu(filesubmenu)
1894     mb.append(filemenu)
1895
1896     open.signal_connect('activate') { open_dir_popup }
1897     $execute.signal_connect('activate') { execute }
1898     quit.signal_connect('activate') { try_quit }
1899
1900     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1901     editsubmenu = Gtk::Menu.new
1902     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1903     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1904     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1905     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1906     editmenu.set_submenu(editsubmenu)
1907     mb.append(editmenu)
1908
1909     $undo_mb.signal_connect('activate') { perform_undo }
1910     $redo_mb.signal_connect('activate') { perform_redo }
1911     prefs.signal_connect('activate') { preferences }
1912     
1913     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1914     helpsubmenu = Gtk::Menu.new
1915     helpsubmenu.append(howto = Gtk::ImageMenuItem.new(Gtk::Stock::HELP))
1916     helpsubmenu.append(speed = Gtk::ImageMenuItem.new(utf8(_("Speedup: key shortcuts"))))
1917     speed.image = Gtk::Image.new("#{$FPATH}/images/stock-info-16.png")
1918     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1919     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1920     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1921     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1922     helpmenu.set_submenu(helpsubmenu)
1923     mb.append(helpmenu)
1924
1925     howto.signal_connect('activate') {
1926         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Help</span>
1927
1928 1. Open a directory with <span foreground='darkblue'>File/Open</span>; the classifier will scan it (including subdirectories) and
1929 show thumbnails for all photos and videos at the bottom.
1930
1931 2. You can then navigate through images with the <span foreground='darkblue'>Left/Right</span> keyboard keys, or by <span foreground='darkblue'>clicking</span>
1932 on thumbnails.
1933
1934 3. You may associate a <span foreground='darkblue'>label</span> to each thumbnail. Either hit the <span foreground='darkblue'>Delete</span> key to associate
1935 the built-in <i>to remove</i> label, or hit any alphabetical key to associate a label you define.
1936 The first time you hit a key without any label associated, a popup will ask for the full
1937 name of this label, and what color you want. To clear the current label, hit the <span foreground='darkblue'>Space</span> key.
1938
1939 4. To help you better view what thumbnails are associated to your labels, you may <span foreground='darkblue'>hide</span>
1940 some of them by unchecking the labels checkboxes on the left.
1941
1942 5. Once you're finished reviewing all thumbnails, use <span foreground='darkblue'>File/Execute</span> to execute the desired
1943 actions according to associated labels. You can permanently remove (or not) images with
1944 the <i>to remove</i> label, and copy or move images with the labels you defined.
1945 ")), { :pos_centered => true, :not_transient => true })
1946     }
1947     speed.signal_connect('activate') {
1948         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Key shortcuts</span>
1949
1950 <span foreground='darkblue'>Left/Right</span>: move left and right in images
1951 <span foreground='darkblue'>Enter</span>: 'view' current image: for images, display EXIF data; for videos, play it
1952 <span foreground='darkblue'>Alt-Left/Right</span>: rotate current image clockwise/counter-clockwise
1953 <span foreground='darkblue'>Delete</span>: assign the 'to remove' label on current image
1954 <span foreground='darkblue'>Space</span>: clear any label on current image
1955 <span foreground='darkblue'>Control-z</span>: undo
1956 <span foreground='darkblue'>Control-r</span>: redo
1957 <span foreground='darkblue'>Control-Space</span>: recenter thumbnails on current item
1958
1959 Any alphabetical key will assign (or popup for) the associated label on current image.
1960 ")), { :pos_centered => true, :not_transient => true })
1961     }
1962     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial') }
1963     about.signal_connect('activate') { call_about }
1964
1965
1966     #- no toolbar, to save height
1967
1968     return mb
1969 end
1970
1971 def reset_labels
1972     for child in $labels_vbox.children
1973         $labels_vbox.remove(child)
1974     end
1975     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1976     $labels = {}
1977     $ordered_labels = []
1978     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1979     $labels_vbox.pack_start(Gtk::HBox.new(false, 5).pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)), false, false).
1980                                                     pack_start(Gtk::Label.new, true, true).  #- I suck
1981                                                     pack_start($unlabelled_counter = Gtk::Label.new.set_markup('<tt>0</tt>'), false, false).show_all)
1982     $unlabelled_button.active = true
1983     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1984     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1985     $labels_vbox.pack_start(Gtk::HBox.new(false, 5).pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)), false, false).
1986                                                     pack_start(Gtk::Label.new, true, true).
1987                                                     pack_start($toremove_counter = Gtk::Label.new.set_markup('<tt>0</tt>'), false, false).show_all)
1988     $toremove_button.active = true
1989     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1990     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1991     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1992     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1993 end
1994
1995 def cleanup_loaders
1996     $allentries.each { |e| 
1997         e.cancel_loader
1998     }
1999 end
2000
2001 def reset_thumbnails
2002     cleanup_loaders
2003     $allentries = []
2004     if $preloader_running
2005         $preloader_force_exit = true
2006     end
2007     for child in $imagesline.children
2008         $imagesline.remove(child)
2009     end
2010     set_imagesline_size_request
2011 end
2012
2013 def set_imagesline_size_request
2014     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + Entry.thumbnails_height/4)
2015 end
2016
2017 def create_main_window
2018
2019     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
2020     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
2021
2022     mb = create_menubar
2023
2024     main_vbox = Gtk::VBox.new(false, 0)
2025     main_vbox.pack_start(mb, false, false)
2026     mainview_hbox = Gtk::HBox.new
2027     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
2028     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
2029     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
2030     mainview_hbox.pack_start($mainview = MainView.new, true, true)
2031     main_vbox.pack_start(mainview_hbox, true, true)
2032     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
2033     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
2034     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
2035     main_vbox.pack_start($imagesline_sw, false, false)
2036     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
2037
2038     set_imagesline_size_request
2039
2040     $main_window = create_window
2041     $main_window.add(main_vbox)
2042     $main_window.signal_connect('delete-event') {
2043         try_quit
2044     }
2045
2046     #- read/save size and position of window
2047     if $config['pos-x'] && $config['pos-y']
2048         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
2049     else
2050         $main_window.window_position = Gtk::Window::POS_CENTER
2051     end
2052     msg 3, "size: #{$config['width']}x#{$config['height']}"
2053     $main_window.set_default_size(($config['width'] || 800).to_i, ($config['height'] || 600).to_i)
2054     $main_window.signal_connect('configure-event') {
2055         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
2056         x, y = $main_window.window.root_origin
2057         width, height = $main_window.window.size
2058         $config['pos-x'] = x
2059         $config['pos-y'] = y
2060         $config['width'] = width
2061         $config['height'] = height
2062         false
2063     }
2064
2065     $main_window.show_all
2066     $loading_progressbar.hide
2067 end
2068
2069
2070 handle_options
2071 read_config
2072 Gtk.init
2073
2074
2075 create_main_window
2076 check_config
2077
2078 if ARGV[0]
2079     if msg = open_dir(*ARGV)
2080         puts msg
2081     else
2082         Gtk.idle_add {
2083             show_entries($allentries)
2084             false
2085         }
2086     end
2087 end
2088 Gtk.main
2089
2090 cleanup_loaders
2091
2092 write_config