016ba37db15d8cc125f1ec75609d3a9c2d5d08b2
[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) 2004-2006 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 require 'thread'
25
26 require 'gtk2'
27
28 require 'gettext'
29 include GetText
30 bindtextdomain("booh")
31
32 require '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
44     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
45 ]
46
47 def usage
48     puts _("Usage: %s [OPTION]...") % File.basename($0)
49     $options.each { |ary|
50         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
51     }
52 end
53
54 def handle_options
55     parser = GetoptLong.new
56     parser.set_options(*$options.collect { |ary| ary[0..2] })
57     begin
58         parser.each_option do |name, arg|
59             case name
60             when '--help'
61                 usage
62                 exit(0)
63
64             when '--verbose-level'
65                 $verbose_level = arg.to_i
66
67             end
68         end
69     rescue
70         puts $!
71         usage
72         exit(1)
73     end
74 end
75
76 def memfree
77     meminfo = IO.readlines('/proc/meminfo').join
78     meminfo =~ /MemFree:.*?(\d+)/ or return -1
79     memfree = $1
80     meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
81     meminfo =~ /Cached:.*?(\d+)/ and cached = $1
82     return memfree.to_i + buffers.to_i + cached.to_i
83 end
84
85 def set_cache_memory_use_figure
86     if $config['cache-memory-use'] =~ /memfree_(\d+)/
87         $config['cache-memory-use-figure'] = memfree*$1.to_f/100
88     else
89         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
90     end
91     msg 2, "Cache memory used: #{$config['cache-memory-use-figure']} kB"
92 end
93
94 def read_config
95     $config = {}
96     $config_file = File.expand_path('~/.booh-classifier-rc')
97     if File.readable?($config_file)
98         $xmldoc = REXML::Document.new(File.new($config_file))
99         $xmldoc.root.elements.each { |element|
100             txt = element.get_text
101             if txt
102                 if txt.value =~ /~~~/
103                     $config[element.name] = txt.value.split(/~~~/)
104                 else
105                     $config[element.name] = txt.value
106                 end
107             elsif element.elements.size == 0
108                 $config[element.name] = ''
109             else
110                 $config[element.name] = {}
111                 element.each { |chld|
112                     txt = chld.get_text
113                     $config[element.name][chld.name] = txt ? txt.value : nil
114                 }
115             end
116         }
117     end
118     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
119     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
120     $config['preload-distance'] ||= '5'
121     $config['cache-memory-use'] ||= 'memfree_50%'
122     $config['rotate-set-exif'] ||= 'true'
123     set_cache_memory_use_figure
124 end
125
126 def check_config
127     missing = %w(transcode mencoder).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
128     if missing != []
129         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
130     end
131
132     viewer_binary = $config['video-viewer'].split.first
133     if viewer_binary && ! File.executable?(viewer_binary)
134         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
135 You should fix this in Edit/Preferences so that you can view videos.
136
137 Problem was: '%s' is not an executable file.
138 Hint: don't forget to specify the full path to the executable,
139 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
140     end
141     browser_binary = $config['browser'].split.first
142     if browser_binary && ! File.executable?(browser_binary)
143         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
144 You should fix this in Edit/Preferences so that you can open URLs.
145
146 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
147     end
148 end
149
150 def write_config
151     ios = File.open($config_file, "w")
152     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
153     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
154     $config.each_pair { |key, value|
155         elem = $xmldoc.root.add_element key
156         if value.is_a? Hash
157             $config[key].each_pair { |subkey, subvalue|
158                 subelem = elem.add_element subkey
159                 subelem.add_text subvalue.to_s
160             }
161         elsif value.is_a? Array
162             elem.add_text value.join('~~~')
163         else
164             if !value
165                 elem.remove
166             else
167                 elem.add_text value.to_s
168             end
169         end
170     }
171     $xmldoc.write(ios, 0)
172     ios.close
173 end
174
175 def save_undo(name, closure, *params)
176     UndoHandler.save_undo(name, closure, [ *params ])
177     $undo_mb.sensitive = true
178     $redo_mb.sensitive = false
179 end
180
181 def get_mem
182     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
183     msg 3, "RSS: #{$1}"
184     return $1.to_i
185 end
186
187 def show_mem(*txt)
188     txt.length > 0 and print txt[0]
189     msg 2, "RSS: #{get_mem}"
190 end
191
192 class Gdk::Color
193     def darker
194         color = dup
195         color.red = [ color.red - 10000, 0 ].max
196         color.green = [ color.green - 10000, 0 ].max
197         color.blue = [ color.blue - 10000, 0 ].max
198         return color
199     end
200     def lighter
201         color = dup
202         color.red = [ color.red + 10000, 65535 ].min
203         color.green = [ color.green + 10000, 65535 ].min
204         color.blue = [ color.blue + 10000, 65535 ].min
205         return color
206     end
207 end
208
209 $colors = [ Gdk::Color.new(0, 65535, 0),
210             Gdk::Color.new(0, 0, 65535),
211             Gdk::Color.new(65535, 65535, 0),
212             Gdk::Color.new(0, 65535, 65535),
213             Gdk::Color.new(65535, 0, 65535) ]
214
215 class Label
216     attr_accessor :color, :name
217     def initialize(name)
218         @name = name
219     end
220 end
221
222 class Entry
223     @@thumbnails_height = 64
224     @@max_height = nil
225     def Entry.thumbnails_height
226         return @@thumbnails_height
227     end
228
229     attr_accessor :path, :type, :angle, :button, :image, :removed, :labeled
230
231     def initialize(path, type)
232         @path = path
233         @type = type
234         if @@max_height.nil?
235             @@max_height = $main_window.root_window.size[1]
236         end
237         @protect_cleanup = Mutex.new
238     end
239
240     def pixbuf_full
241         @protect_cleanup.synchronize {
242             if @pixbuf_full.nil?
243                 msg 3, ">>> pixbuf_full #{path}"
244                 load_into_pixbuf_full
245             end
246             return @pixbuf_full
247         }
248     end
249     def free_pixbuf_full
250         @protect_cleanup.synchronize {
251             if @pixbuf_full.nil?
252                 return false
253             else
254                 msg 3, ">>> free_pixbuf_full #{path}"
255                 @pixbuf_full = nil
256                 return true
257             end
258         }
259     end
260     def pixbuf_main(width, height)
261         @protect_cleanup.synchronize {
262             if @pixbuf_main.nil? || width != @width || height != @height
263                 msg 3, ">>> pixbuf_main #{path}"
264                 @width = width
265                 @height = height
266                 load_into_pixbuf_full  #- make sure it is loaded
267                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
268                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
269                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
270                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
271                     else
272                         @pixbuf_main = @pixbuf_full
273                     end
274                 else
275                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
276                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
277                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
278                     else
279                         @pixbuf_main = @pixbuf_full
280                     end
281                 end
282             end
283             return @pixbuf_main
284         }
285     end
286     def free_pixbuf_main
287         @protect_cleanup.synchronize {
288             if @pixbuf_main.nil?
289                 return false
290             else
291                 msg 3, ">>> free_pixbuf_main #{path}"
292                 @pixbuf_main = nil
293                 return true
294             end
295         }
296     end
297     def pixbuf_thumbnail
298         return @protect_cleanup.synchronize {
299             if @pixbuf_thumbnail.nil?
300                 msg 3, ">>> pixbuf_thumbnail #{path}"
301                 load_into_pixbuf_full  #- make sure it is loaded
302                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
303             end
304             return @pixbuf_thumbnail
305         }
306     end
307     def free_pixbuf_thumbnail
308         @protect_cleanup.synchronize {
309             if @pixbuf_thumbnail.nil?
310                 return false
311             else
312                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
313                 @pixbuf_thumbnail = nil
314                 return true
315             end
316         }
317     end
318
319     def show_bg
320         if removed
321             red = Gdk::Color.new(65535, 0, 0)
322             button.modify_bg(Gtk::StateType::NORMAL, red)
323             button.modify_bg(Gtk::StateType::PRELIGHT, red.lighter)
324             button.modify_bg(Gtk::StateType::ACTIVE, red)
325         elsif labeled
326             button.modify_bg(Gtk::StateType::NORMAL, labeled.color)
327             button.modify_bg(Gtk::StateType::PRELIGHT, labeled.color.lighter)
328             button.modify_bg(Gtk::StateType::ACTIVE, labeled.color)
329         else
330             button.modify_bg(Gtk::StateType::NORMAL, nil)
331             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
332             button.modify_bg(Gtk::StateType::ACTIVE, nil)
333         end
334     end
335
336     private
337     def cleanup_dir(dir)
338         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
339         Dir.delete(dir)
340     end
341
342     def load_into_pixbuf_full
343         if @pixbuf_full.nil?
344             msg 3, ">>> load_into_pixbuf_full #{path}"
345             if type == 'video'
346                 tmp = Tempfile.new("boohclassifiertemp")
347                 tmp.close!
348                 Dir.mkdir(dest_dir = tmp.path)
349                 orig_base = File.basename(path)
350                 if ! gen_video_thumbnail(path, dest_dir, orig_base, false, 0)
351                     cleanup_dir(dest_dir)
352                     return
353                 end
354                 image_path = "#{dest_dir}/#{orig_base}.jpg000000.jpg"
355             else
356                 image_path = @path
357             end
358             begin
359                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
360             rescue Gdk::PixbufError
361                 msg 0, "Cannot load #{image_path}: #{$!}"
362                 return
363             end
364             if @pixbuf_full
365                 if @angle.nil?
366                     if type == 'image'
367                         @angle = guess_rotate(image_path)
368                     else
369                         @angle = 0
370                     end
371                 end
372                 if @angle != 0
373                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
374                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
375                 end
376                 if @pixbuf_full.height > @@max_height
377                     #- save a lot of memory, don't store in actual full size
378                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
379                 end
380             end
381             if type == 'video'
382                 cleanup_dir(dest_dir)
383             end
384         end
385     end
386
387     def to_s
388         @path
389     end
390 end
391
392 class MainView < Gtk::DrawingArea
393
394     def initialize
395         super()
396         signal_connect('expose-event') { draw }
397         signal_connect('configure-event') { update_shown; GC.start }
398         signal_connect('realize') {
399             @preloader = Thread.new {
400                 #- background preloading
401                 while true
402                     msg 3, "background main preloading triggered..."
403                     if ! @entry.nil?
404                         index = $allentries.index(@entry)
405                         w, h = window.size
406                         w -= $videoborder_pixbuf.width * 2
407                         for j in 1 .. $config['preload-distance'].to_i
408                             i = index + j
409                             if i < $allentries.size
410                                 $allentries[i].pixbuf_main(w, h)
411                             end
412                             i = index - j
413                             if i >= 0
414                                 $allentries[i].pixbuf_main(w, h)
415                             end
416                             GC.start
417                             mem = get_mem
418                             if mem > $config['cache-memory-use-figure']
419                                 msg 3, "too much RSS, stopping main preloading"
420                                 break
421                             end
422                         end
423                         check_memory_free_cache_if_needed
424                     end
425                     Thread.stop
426                 end
427             }
428             @preloader.priority = -2
429         }
430     end
431
432     def set_shown_entry(entry)
433         if ! entry.nil? && entry == @entry
434             return
435         end
436         @entry = entry
437         if ! entry.nil?
438             if ! @entry.button
439                 #- not loaded yet
440                 return
441             else
442                 @entry.button.grab_focus
443             end
444         end
445         redraw        
446         @preloader.run
447     end
448
449     def get_shown_entry
450         return @entry
451     end
452
453     def show_next_entry(entry)
454         index = $allentries.index(entry) + 1
455         if index < $allentries.size
456             set_shown_entry($allentries[index])
457         end
458     end
459
460     def redraw
461         update_shown
462         w, h = window.size
463         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
464         window.clear
465         draw
466         window.end_paint
467     end
468
469     def update_shown
470         if @entry
471             width, height = window.size 
472             usable_width = width - $videoborder_pixbuf.width * 2
473             @pixbuf = @entry.pixbuf_main(usable_width, height)
474             if @pixbuf.width == usable_width
475                 @xpos = $videoborder_pixbuf.width
476                 @ypos = (height-@pixbuf.height)/2
477             else
478                 @xpos = (width-@pixbuf.width)/2
479                 @ypos = (height-@pixbuf.height)/2
480             end
481             @preloader.run
482         else
483             @pixbuf = nil
484         end
485     end
486
487     def draw
488         if @pixbuf
489             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
490             if @entry && @entry.type == 'video'
491                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
492             end
493         end
494     end
495 end
496
497 def check_memory_free_cache_if_needed
498     GC.start
499     mem = get_mem
500     i = $allentries.index($mainview.get_shown_entry)
501     msg 3, "mem: #{mem} index: #{i}"
502     return if i.nil?
503     ($allentries.size - 1).downto(1) { |j|
504         if mem < $config['cache-memory-use-figure'] * 2 / 3
505             break
506         end
507         index = i + j
508         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
509         freedsomething = false
510         if i + j < $allentries.size
511             freedsomething |= $allentries[i+j].free_pixbuf_full
512         end
513         if i - j > 0
514             freedsomething |= $allentries[i-j].free_pixbuf_full
515         end
516         if freedsomething
517             GC.start
518             mem = get_mem
519             msg 3, "\tmem now: #{mem}"
520         end
521     }
522 end
523
524 def autoscroll_if_needed(button)
525     xpos_left = button.allocation.x
526     xpos_right = button.allocation.x + button.allocation.width
527     hadj = $imagesline_sw.hadjustment
528     current_minx_visible = hadj.value
529     current_maxx_visible = hadj.value + hadj.page_size
530     if xpos_left < current_minx_visible
531         #- autoscroll left
532         newval = hadj.value - (current_minx_visible - xpos_left)
533         hadj.value = newval
534         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
535     elsif xpos_right > current_maxx_visible
536         #- autoscroll right
537         newval = hadj.value + (xpos_right - current_maxx_visible)
538         if newval > hadj.upper - hadj.page_size
539             newval = hadj.upper - hadj.page_size
540         end
541         hadj.value = newval
542         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
543     end
544 end
545
546 def show_popup(parent, msg, *options)
547     dialog = Gtk::Dialog.new
548     if options[0]
549         options = options[0]
550     else
551         options = {}
552     end
553     if options[:title]
554         dialog.title = options[:title]
555     else
556         dialog.title = utf8(_("Booh message"))
557     end
558     lbl = Gtk::Label.new
559     if options[:nomarkup]
560         lbl.text = msg
561     else
562         lbl.markup = msg
563     end
564     if options[:centered]
565         lbl.set_justify(Gtk::Justification::CENTER)
566     end
567     if options[:selectable]
568         lbl.selectable = true
569     end
570     if options[:topwidget]
571         dialog.vbox.add(options[0][:topwidget])
572     end
573     if options[:scrolled]
574         sw = Gtk::ScrolledWindow.new(nil, nil)
575         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
576         sw.add_with_viewport(lbl)
577         dialog.vbox.add(sw)
578         dialog.set_default_size(500, 600)
579     else
580         dialog.vbox.add(lbl)
581         dialog.set_default_size(200, 120)
582     end
583     if options[:bottomwidget]
584         dialog.vbox.add(options[:bottomwidget])
585     end
586     if options[:okcancel]
587         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
588     end
589     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
590
591     if options[:pos_centered]
592         dialog.window_position = Gtk::Window::POS_CENTER
593     else
594         dialog.window_position = Gtk::Window::POS_MOUSE
595     end
596
597     if options[:linkurl]
598         linkbut = Gtk::Button.new('')
599         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
600         linkbut.signal_connect('clicked') {
601             open_url(options[0][:linkurl] + '/index.html')
602             dialog.response(Gtk::Dialog::RESPONSE_OK)
603             set_mousecursor_normal
604         }
605         linkbut.relief = Gtk::RELIEF_NONE
606         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
607         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
608         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
609     end
610
611     dialog.show_all
612
613     if options[:stuff_connector]
614         options[:stuff_connector].call({ :dialog => dialog })
615     end
616                                         
617     if !options[:not_transient]
618         dialog.transient_for = parent
619         dialog.run { |response|
620             if options[:data_getter]
621                 options[:data_getter].call
622             end
623             dialog.destroy
624             if options[:okcancel]
625                 return response == Gtk::Dialog::RESPONSE_OK
626             end
627         }
628     else
629         dialog.signal_connect('response') { dialog.destroy }
630     end
631 end
632
633 def thumbnail_keypressed(entry, event)
634     if event.state & Gdk::Window::MOD1_MASK != 0
635         #- ALT pressed: Alt-Left and Alft-Right rotate
636         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
637             if event.keyval == Gdk::Keyval::GDK_Left
638                 entry.angle = (entry.angle - 90) % 360
639             else
640                 entry.angle = (entry.angle + 90) % 360
641             end
642             entry.free_pixbuf_full
643             entry.free_pixbuf_main
644             entry.free_pixbuf_thumbnail
645             $mainview.redraw
646             entry.image.pixbuf = entry.pixbuf_thumbnail
647         end
648
649     elsif event.state & Gdk::Window::CONTROL_MASK != 0
650         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
651         if event.keyval == Gdk::Keyval::GDK_z
652             perform_undo
653         end
654         if event.keyval == Gdk::Keyval::GDK_r
655             perform_redo
656         end
657
658     else
659         removed_before = entry.removed
660         label_before = entry.labeled
661
662         if event.keyval == Gdk::Keyval::GDK_Delete
663             entry.removed = true
664             entry.labeled = nil
665             entry.show_bg
666             $mainview.show_next_entry(entry)
667
668             save_undo(_("set for removal"),
669                       proc {
670                           entry.removed = removed_before
671                           entry.labeled = label_before
672                           entry.show_bg
673                           $mainview.set_shown_entry(entry)
674                           proc {
675                               entry.removed = true
676                               entry.labeled = nil
677                               entry.show_bg
678                               $mainview.set_shown_entry(entry)
679                           }
680                       })
681
682         elsif event.keyval == Gdk::Keyval::GDK_space
683             entry.removed = false
684             entry.labeled = nil
685             entry.show_bg
686             $mainview.show_next_entry(entry)
687
688             save_undo(_("remove label"),
689                       proc {
690                           entry.removed = removed_before
691                           entry.labeled = label_before
692                           entry.show_bg
693                           $mainview.set_shown_entry(entry)
694                           proc {
695                               entry.removed = false
696                               entry.labeled = nil
697                               entry.show_bg
698                               $mainview.set_shown_entry(entry)
699                           }
700                       })
701
702         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
703             cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
704             msg 2, cmd
705             system(cmd)
706
707         else
708             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
709             if char =~ /^[a-zA-z0-9]$/
710                 label = $labels[char]
711                 
712                 if label.nil?
713                     vb = Gtk::VBox.new(false, 0)
714                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
715                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::Button.new(utf8(_("  Change color  ")))))
716                     text = nil
717                     color = nil
718                     bt.signal_connect('clicked') {
719                         color = $colors.shift
720                         if color.nil?
721                             color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
722                         end
723                         bt.modify_bg(Gtk::StateType::NORMAL, color)
724                         bt.modify_bg(Gtk::StateType::PRELIGHT, color)
725                         bt.modify_bg(Gtk::StateType::ACTIVE, color.darker)
726                     }
727                     bt.clicked
728                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
729                         while $labels.has_key?(entry.text[0,1])
730                             entry.text = entry.text.sub(/./, '')
731                         end
732                     }
733                     if show_popup($main_window,
734                                   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,
735                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
736                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
737                                                                        entry.position = -1
738                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
739                         if text.length > 0
740                             char = text[0,1]  #- in case it changed
741                             label = Label.new(text)
742                             label.color = color
743                             $labels[char] = label
744                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
745                             $labels_vbox.pack_start(evt = Gtk::EventBox.new.add(lbl).modify_bg(Gtk::StateType::NORMAL, label.color).show_all)
746                         end
747                     end
748
749                 else
750                     entry.removed = false
751                     entry.labeled = label
752                     entry.show_bg
753                     $mainview.show_next_entry(entry)
754
755                     save_undo(_("set label"),
756                               proc {
757                                   entry.removed = removed_before
758                                   entry.labeled = label_before
759                                   entry.show_bg
760                                   $mainview.set_shown_entry(entry)
761                                   proc {
762                                       entry.removed = false
763                                       entry.labeled = label
764                                       entry.show_bg
765                                       $mainview.set_shown_entry(entry)
766                                   }
767                               })
768                 end
769             end
770         end
771     end
772 end
773
774 def sb_msg(msg)
775     $statusbar.pop(0)
776     if msg
777         $statusbar.push(0, utf8(msg))
778     end
779 end
780
781 def real_show_entry(entry, tooltips, grab_focus)
782     #- for scoping the actual reference to 'entry'
783     gtk_thread_protect(proc {
784         msg 3, "using entry #{entry}"
785         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
786         if entry.type == 'video'
787             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
788                                                              pack_start(entry.image).
789                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
790             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
791             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
792         else
793             entry.button = Gtk::Button.new.set_image(entry.image)
794         end
795         tooltips.set_tip(entry.button, File.basename(entry.path).gsub(/\.[^.]+$/, ''), nil)
796         $imagesline.pack_start(entry.button.show_all, false, false)
797         entry.button.signal_connect('clicked') { $mainview.set_shown_entry(entry) }
798         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
799         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
800         if grab_focus
801             entry.button.grab_focus
802         end
803     })
804 end
805
806 def show_entries
807     e = Thread.new {
808         t1 = Time.now
809         sb_msg(_("Loading images..."))
810         tooltips = Gtk::Tooltips.new
811         counter = 0
812         toremove = []
813         grab_focus = true
814         i = 0
815         total_size = 0
816         while i < $allentries.size
817             entry = $allentries[i]
818             if entry.pixbuf_full
819                 total_size += file_size(entry.path)
820                 entry.pixbuf_thumbnail
821                 real_show_entry(entry, tooltips, grab_focus)
822                 grab_focus = false
823                 if i % 4 == 0
824                     check_memory_free_cache_if_needed
825                 end
826                 counter += 1
827                 i = i + 1
828
829             else
830                 $allentries.delete_at(i)
831             end
832         end
833         check_memory_free_cache_if_needed
834         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
835     }
836     e.priority = -1
837 end
838
839 def reset_all
840     reset_labels
841     reset_thumbnails
842     $mainview.set_shown_entry(nil)
843     sb_msg(nil)
844 end
845
846 def open_dir(path)
847     #- remove visual stuff, so that user will see something is happening
848     reset_all
849     sb_msg(_("Scanning source directory..."))
850
851     path = File.expand_path(path.sub(%r|/$|, ''))
852     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
853     #- validate first
854     examined_dirs.each { |dir|
855         if dir =~ /'/
856             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
857         end
858         Dir.entries(dir).each { |file|
859             if file =~ /['"\[\]]/
860                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
861             end
862         }
863     }
864
865     #- scan for populate second
866     examined_dirs.each { |dir|
867         if File.basename(dir) =~ /^\./
868             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
869             next
870         end
871         Dir.entries(dir).each { |file|
872             type = entry2type(file)
873            if type
874 #&& $allentries.size < 120
875                 $allentries << Entry.new(File.join(dir, file), type)
876             end
877         }
878     }
879     $workingdir = path
880     show_entries
881     $execute.sensitive = true
882     return nil
883 end
884
885 def open_dir_popup
886     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
887                                     nil,
888                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
889                                     nil,
890                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
891     fc.transient_for = $main_window
892     if $workingdir
893         fc.current_folder = $workingdir
894     end
895     ok = false
896     while !ok
897         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
898             msg = open_dir(fc.filename)
899             if msg
900                 show_popup(fc, msg)
901                 ok = false
902             else
903                 ok = true
904             end
905         else
906             ok = true
907         end
908     end
909     fc.destroy
910 end
911
912 def gtk_thread_protect(proc, *params)
913     if Thread.current == Thread.main
914         proc.call(*params)
915     else
916         $protect_gtk_pending_calls.synchronize {
917             $gtk_pending_calls << [ proc, params ]
918         }
919     end
920 end
921
922 def gtk_thread_flush
923     $protect_gtk_pending_calls.synchronize {
924         if $gtk_pending_calls.size > 0
925             elem = $gtk_pending_calls.shift
926             elem[0].call(*elem[1])
927         end
928     }
929 end
930
931 def try_quit(*options)
932     Gtk.main_quit
933 end
934
935 def execute
936     dialog = Gtk::Dialog.new
937     dialog.title = utf8(_("Booh message"))
938
939     vb1 = Gtk::VBox.new(false, 5)
940     label = Gtk::Label.new.set_markup(utf8(_("You're about to <b>execute</b> actions on the marked images.\nPlease confirm below the actions. This operation is not undoable!")))
941     vb1.pack_start(label, false, false)
942
943     table = Gtk::Table.new(0, 0, false)
944     table.set_row_spacings(5)
945     table.set_column_spacings(5)
946     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)
947     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)
948     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)
949     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)
950     add_row = proc { |row, name, color, truthproc, normal|
951         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)),
952                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
953         counter = 0
954         examples = Gtk::HBox.new(false, 5)
955         $allentries.each { |entry|
956             if truthproc.call(entry)
957                 counter += 1
958                 if counter < 4
959                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
960                     if entry.type == 'video'
961                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
962                                                   pack_start(thumbnail).
963                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
964                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
965                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
966                     end
967                     examples.pack_start(thumbnail, false, false)
968                 elsif counter == 4
969                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
970                 end
971             end
972         }
973         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
974         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
975
976         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
977         iter = combostore.append
978         if normal
979             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
980             iter[1] = utf8(_("Move to:"))
981         else
982             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
983             iter[1] = utf8(_("Permanently remove"))
984         end
985         iter = combostore.append
986         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
987         iter[1] = utf8(_("Do nothing"))
988         combo = Gtk::ComboBox.new(combostore)
989         combo.active = 0
990         renderer = Gtk::CellRendererPixbuf.new
991         combo.pack_start(renderer, false)
992         combo.set_attributes(renderer, :pixbuf => 0)
993         renderer = Gtk::CellRendererText.new
994         combo.pack_start(renderer, true)
995         combo.set_attributes(renderer, :text => 1)
996
997         if normal
998             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
999             lastpath = $workingdir
1000             pathbutton.signal_connect('clicked') {
1001                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1002                                                 nil,
1003                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1004                                                 nil,
1005                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1006                 fc.transient_for = dialog
1007                 fc.current_folder = lastpath
1008                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1009                     pathlabel.text = fc.filename
1010                 end
1011                 lastpath = fc.filename
1012                 fc.destroy
1013             }
1014             combo.signal_connect('changed') {
1015                 pathbutton.sensitive = combo.active == 0
1016             }
1017             vb = Gtk::VBox.new(false, 5)
1018             vb.pack_start(combo, false, false)
1019             vb.pack_start(pathbutton, false, false)
1020             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1021             { :combo => combo, :pathlabel => pathlabel }
1022         else
1023             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1024             { :combo => combo }
1025         end
1026     }
1027     stuff = {}
1028     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), Gdk::Color.new(65535, 0, 0), proc { |entry| entry.removed }, false)
1029     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1030     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1031
1032     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1033     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1034     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 ]))
1035     if toremove_amount > 0
1036         vb1.pack_start(check_removal, false, false)
1037         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1038             check_removal.sensitive = widget.active == 0
1039         }
1040     end
1041
1042     dialog.vbox.add(vb1)
1043
1044     dialog.set_default_size(800, 600)
1045     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1046     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1047     dialog.window_position = Gtk::Window::POS_MOUSE
1048     dialog.transient_for = $main_window
1049
1050     dialog.show_all
1051
1052     while true
1053         dialog.run { |response|        
1054             if response == Gtk::Dialog::RESPONSE_OK
1055                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1056                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1057                     break
1058                 end
1059                 problem = false
1060                 label2entries = {}
1061                 $labels.values.each { |label| label2entries[label] = [] }
1062                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1063                 stuff.keys.each { |key|
1064                     if key.is_a?(Label) && stuff[key][:combo].active == 0
1065                         destination = stuff[key][:pathlabel].text
1066                         if destination[0] != ?/
1067                             show_popup(dialog, utf8(_("You have not selected a directory where to move %s.") % key.name))
1068                             problem = true
1069                             break
1070                         end
1071                         st = File.stat(destination)
1072                         if ! st.directory? || ! st.writable?
1073                             show_popup(dialog, utf8(_("Directory where to move %s is not valid or not writable.") % key.name))
1074                             problem = true
1075                             break
1076                         end
1077                         label2entries[key].each { |entry|
1078                             begin
1079                                 File.stat(File.join(destination, File.basename(entry.path)))
1080                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in '%s'.") % [ File.basename(entry.path), destination ]))
1081                                 problem = true
1082                                 break
1083                             rescue
1084                             end
1085                         }
1086                         if problem
1087                             break
1088                         end
1089                     end
1090                 }
1091                 if ! problem
1092                     begin
1093                         moved = 0
1094                         stuff.keys.each { |key|
1095                             if key.is_a?(Label) && stuff[key][:combo].active == 0
1096                                 destination = stuff[key][:pathlabel].text
1097                                 label2entries[key].each { |entry|
1098                                     File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1099                                     moved += 1
1100                                 }
1101                             end
1102                         }
1103                         removed = 0
1104                         if stuff['toremove'][:combo].active == 0
1105                             $allentries.each { |entry|
1106                                 if entry.removed
1107                                     File.delete(entry.path)
1108                                     removed += 1
1109                                 end
1110                             }
1111                         end
1112                     rescue
1113                         msg 1, "woops: #{$!}"
1114                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1115                     end
1116                     show_popup(dialog, utf8(_("Successfully moved %d files and removed %d files.") % [ moved, removed ]))
1117                     dialog.destroy
1118                     reset_all
1119                     return
1120                 end
1121
1122             else
1123                 dialog.destroy
1124                 return
1125             end
1126         }
1127     end
1128 end
1129
1130 def preferences
1131     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1132                              $main_window,
1133                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1134                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1135                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1136
1137     tooltips = Gtk::Tooltips.new
1138     
1139     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1140     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1141                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1142     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1143                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1144     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1145
1146     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1147                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1148     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1149                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1150     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1151
1152     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1153                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1154     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1155                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1156     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1157
1158     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1159                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1160     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1161                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1162     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1163                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1164                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1165     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1166     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1167     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1168                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1169                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1170     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1171     cache_memfree_radio.signal_connect('toggled') {
1172         if cache_memfree_radio.active?
1173             cache_memfree_label.sensitive = true
1174             cache_specify_label.sensitive = false
1175         else
1176             cache_specify_label.sensitive = true
1177             cache_memfree_label.sensitive = false
1178         end
1179     }
1180     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1181     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1182         cache_memfree_spin.value = $1.to_i
1183     else
1184         cache_specify_spin.value = $config['cache-memory-use'].to_i
1185     end
1186
1187     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1188                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1189     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1190     update_exif_orientation_check.active = $config['rotate-set-exif']
1191
1192     dialog.vbox.show_all
1193     dialog.run { |response|
1194         if response == Gtk::Dialog::RESPONSE_OK
1195             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1196             $config['browser'] = from_utf8(browser_entry.text)
1197             $config['preload-distance'] = preload_distance.value
1198             $config['rotate-set-exif'] = update_exif_orientation_check.active?
1199             if cache_memfree_radio.active?
1200                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1201             else
1202                 $config['cache-memory-use'] = cache_specify_spin.value
1203             end
1204             set_cache_memory_use_figure
1205         end
1206     }
1207     dialog.destroy
1208 end
1209
1210 def perform_undo
1211     if $undo_mb.sensitive?
1212         $redo_mb.sensitive = true
1213         if not more_undoes = UndoHandler.undo($statusbar)
1214             $undo_mb.sensitive = false
1215         end
1216     end
1217 end
1218
1219 def perform_redo
1220     if $redo_mb.sensitive?
1221         $undo_mb.sensitive = true
1222         if not more_redoes = UndoHandler.redo($statusbar)
1223             $redo_mb.sensitive = false
1224         end
1225     end
1226 end
1227
1228 def create_menubar    
1229     #- menu
1230     mb = Gtk::MenuBar.new
1231
1232     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1233     filesubmenu = Gtk::Menu.new
1234     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1235     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1236     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1237     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1238     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1239     filemenu.set_submenu(filesubmenu)
1240     mb.append(filemenu)
1241
1242     open.signal_connect('activate') { open_dir_popup }
1243     $execute.signal_connect('activate') { execute }
1244     quit.signal_connect('activate') { try_quit }
1245
1246     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1247     editsubmenu = Gtk::Menu.new
1248     editsubmenu.append($undo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1249     editsubmenu.append($redo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1250     editsubmenu.append(           Gtk::SeparatorMenuItem.new)
1251     editsubmenu.append(prefs    = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1252     editmenu.set_submenu(editsubmenu)
1253     mb.append(editmenu)
1254
1255     $undo_mb.signal_connect('activate') { perform_undo }
1256     $redo_mb.signal_connect('activate') { perform_redo }
1257     prefs.signal_connect('activate') { preferences }
1258     
1259     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1260     helpsubmenu = Gtk::Menu.new
1261     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1262     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1263     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1264     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1265     helpmenu.set_submenu(helpsubmenu)
1266     mb.append(helpmenu)
1267
1268     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1269     about.signal_connect('activate') { call_about }
1270
1271
1272     #- no toolbar, to save height
1273
1274     return mb
1275 end
1276
1277 def reset_labels
1278     for child in $labels_vbox.children
1279         $labels_vbox.remove(child)
1280     end
1281     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1282     $labels = {}
1283 end
1284
1285 def reset_thumbnails
1286     $allentries = []
1287     for child in $imagesline.children
1288         $imagesline.remove(child)
1289     end
1290 end
1291
1292 def create_main_window
1293
1294     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1295     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1296
1297     mb = create_menubar
1298
1299     main_vbox = Gtk::VBox.new(false, 0)
1300     main_vbox.pack_start(mb, false, false)
1301     mainview_hbox = Gtk::HBox.new
1302     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1303     reset_labels
1304     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1305     main_vbox.pack_start(mainview_hbox, true, true)
1306     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1307     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1308     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1309     main_vbox.pack_start($imagesline_sw, false, false)
1310     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1311
1312     $imagesline.set_size_request(-1, Entry.thumbnails_height + $imagesline_sw.hscrollbar.size_request[1])
1313
1314     $main_window = Gtk::Window.new
1315     $main_window.add(main_vbox)
1316     $main_window.signal_connect('delete-event') {
1317         try_quit({ :disallow_cancel => true })
1318     }
1319
1320     #- read/save size and position of window
1321     if $config['pos-x'] && $config['pos-y']
1322         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1323     else
1324         $main_window.window_position = Gtk::Window::POS_CENTER
1325     end
1326     msg 3, "size: #{$config['width']}x#{$config['height']}"
1327     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1328     $main_window.signal_connect('configure-event') {
1329         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1330         x, y = $main_window.window.root_origin
1331         width, height = $main_window.window.size
1332         $config['pos-x'] = x
1333         $config['pos-y'] = y
1334         $config['width'] = width
1335         $config['height'] = height
1336         false
1337     }
1338
1339     $protect_gtk_pending_calls = Mutex.new
1340     $gtk_pending_calls = []
1341     Gtk.timeout_add(50) {
1342         gtk_thread_flush
1343         true
1344     }
1345
1346     $main_window.show_all
1347 end
1348
1349
1350 handle_options
1351 Thread.abort_on_exception = true
1352 read_config
1353 Gtk.init
1354
1355
1356 create_main_window
1357 check_config
1358
1359 if ARGV[0]
1360     open_dir(ARGV[0])
1361 end
1362 Gtk.main
1363
1364 write_config