reall use memfree on startup for calculating cache memory figure
[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 startup_memfree
77     if $startup_memfree.nil?
78         meminfo = IO.readlines('/proc/meminfo').join
79         meminfo =~ /MemFree:.*?(\d+)/ or return -1
80         memfree = $1
81         meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
82         meminfo =~ /Cached:.*?(\d+)/ and cached = $1
83         $startup_memfree = memfree.to_i + buffers.to_i + cached.to_i
84     end
85     return $startup_memfree
86 end
87
88 def set_cache_memory_use_figure
89     
90     if $config['cache-memory-use'] =~ /memfree_(\d+)/
91         $config['cache-memory-use-figure'] = startup_memfree*$1.to_f/100
92     else
93         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
94     end
95     msg 2, _("Cache memory used: %s kB") % $config['cache-memory-use-figure']
96 end
97
98 def read_config
99     $config = {}
100     $config_file = File.expand_path('~/.booh-classifier-rc')
101     if File.readable?($config_file)
102         $xmldoc = REXML::Document.new(File.new($config_file))
103         $xmldoc.root.elements.each { |element|
104             txt = element.get_text
105             if txt
106                 if txt.value =~ /~~~/
107                     $config[element.name] = txt.value.split(/~~~/)
108                 else
109                     $config[element.name] = txt.value
110                 end
111             elsif element.elements.size == 0
112                 $config[element.name] = ''
113             else
114                 $config[element.name] = {}
115                 element.each { |chld|
116                     txt = chld.get_text
117                     $config[element.name][chld.name] = txt ? txt.value : nil
118                 }
119             end
120         }
121     end
122     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
123     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
124     $config['preload-distance'] ||= '5'
125     $config['cache-memory-use'] ||= 'memfree_50%'
126     $config['rotate-set-exif'] ||= 'true'
127     set_cache_memory_use_figure
128 end
129
130 def check_config
131     missing = %w(transcode mencoder).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
132     if missing != []
133         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
134     end
135
136     viewer_binary = $config['video-viewer'].split.first
137     if viewer_binary && ! File.executable?(viewer_binary)
138         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
139 You should fix this in Edit/Preferences so that you can view videos.
140
141 Problem was: '%s' is not an executable file.
142 Hint: don't forget to specify the full path to the executable,
143 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
144     end
145     browser_binary = $config['browser'].split.first
146     if browser_binary && ! File.executable?(browser_binary)
147         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
148 You should fix this in Edit/Preferences so that you can open URLs.
149
150 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
151     end
152 end
153
154 def write_config
155     ios = File.open($config_file, "w")
156     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
157     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
158     $config.each_pair { |key, value|
159         elem = $xmldoc.root.add_element key
160         if value.is_a? Hash
161             $config[key].each_pair { |subkey, subvalue|
162                 subelem = elem.add_element subkey
163                 subelem.add_text subvalue.to_s
164             }
165         elsif value.is_a? Array
166             elem.add_text value.join('~~~')
167         else
168             if !value
169                 elem.remove
170             else
171                 elem.add_text value.to_s
172             end
173         end
174     }
175     $xmldoc.write(ios, 0)
176     ios.close
177 end
178
179 def save_undo(name, closure, *params)
180     UndoHandler.save_undo(name, closure, [ *params ])
181     $undo_mb.sensitive = true
182     $redo_mb.sensitive = false
183 end
184
185 def get_mem
186     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
187     msg 3, "RSS: #{$1}"
188     return $1.to_i
189 end
190
191 def show_mem(*txt)
192     txt.length > 0 and print txt[0]
193     msg 2, "RSS: #{get_mem}"
194 end
195
196 class Gdk::Color
197     def darker
198         color = dup
199         color.red = [ color.red - 10000, 0 ].max
200         color.green = [ color.green - 10000, 0 ].max
201         color.blue = [ color.blue - 10000, 0 ].max
202         return color
203     end
204     def lighter
205         color = dup
206         color.red = [ color.red + 10000, 65535 ].min
207         color.green = [ color.green + 10000, 65535 ].min
208         color.blue = [ color.blue + 10000, 65535 ].min
209         return color
210     end
211 end
212
213 $colors = [ Gdk::Color.new(0, 65535, 0),
214             Gdk::Color.new(0, 0, 65535),
215             Gdk::Color.new(65535, 65535, 0),
216             Gdk::Color.new(0, 65535, 65535),
217             Gdk::Color.new(65535, 0, 65535) ]
218
219 class Label
220     attr_accessor :color, :name
221     def initialize(name)
222         @name = name
223     end
224 end
225
226 class Entry
227     @@thumbnails_height = 64
228     @@max_height = nil
229     def Entry.thumbnails_height
230         return @@thumbnails_height
231     end
232
233     attr_accessor :path, :type, :angle, :button, :image, :removed, :labeled
234
235     def initialize(path, type)
236         @path = path
237         @type = type
238         if @@max_height.nil?
239             @@max_height = $main_window.root_window.size[1]
240         end
241         @protect_cleanup = Mutex.new
242     end
243
244     def pixbuf_full
245         @protect_cleanup.synchronize {
246             if @pixbuf_full.nil?
247                 msg 3, ">>> pixbuf_full #{path}"
248                 load_into_pixbuf_full
249             end
250             return @pixbuf_full
251         }
252     end
253     def free_pixbuf_full
254         @protect_cleanup.synchronize {
255             if @pixbuf_full.nil?
256                 return false
257             else
258                 msg 3, ">>> free_pixbuf_full #{path}"
259                 @pixbuf_full = nil
260                 return true
261             end
262         }
263     end
264     def pixbuf_main(width, height)
265         @protect_cleanup.synchronize {
266             if @pixbuf_main.nil? || width != @width || height != @height
267                 msg 3, ">>> pixbuf_main #{path}"
268                 @width = width
269                 @height = height
270                 load_into_pixbuf_full  #- make sure it is loaded
271                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
272                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
273                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
274                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
275                     else
276                         @pixbuf_main = @pixbuf_full
277                     end
278                 else
279                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
280                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
281                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
282                     else
283                         @pixbuf_main = @pixbuf_full
284                     end
285                 end
286             end
287             return @pixbuf_main
288         }
289     end
290     def free_pixbuf_main
291         @protect_cleanup.synchronize {
292             if @pixbuf_main.nil?
293                 return false
294             else
295                 msg 3, ">>> free_pixbuf_main #{path}"
296                 @pixbuf_main = nil
297                 return true
298             end
299         }
300     end
301     def pixbuf_thumbnail
302         return @protect_cleanup.synchronize {
303             if @pixbuf_thumbnail.nil?
304                 msg 3, ">>> pixbuf_thumbnail #{path}"
305                 load_into_pixbuf_full  #- make sure it is loaded
306                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
307             end
308             return @pixbuf_thumbnail
309         }
310     end
311     def free_pixbuf_thumbnail
312         @protect_cleanup.synchronize {
313             if @pixbuf_thumbnail.nil?
314                 return false
315             else
316                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
317                 @pixbuf_thumbnail = nil
318                 return true
319             end
320         }
321     end
322
323     def show_bg
324         if removed
325             red = Gdk::Color.new(65535, 0, 0)
326             button.modify_bg(Gtk::StateType::NORMAL, red)
327             button.modify_bg(Gtk::StateType::PRELIGHT, red.lighter)
328             button.modify_bg(Gtk::StateType::ACTIVE, red)
329         elsif labeled
330             button.modify_bg(Gtk::StateType::NORMAL, labeled.color)
331             button.modify_bg(Gtk::StateType::PRELIGHT, labeled.color.lighter)
332             button.modify_bg(Gtk::StateType::ACTIVE, labeled.color)
333         else
334             button.modify_bg(Gtk::StateType::NORMAL, nil)
335             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
336             button.modify_bg(Gtk::StateType::ACTIVE, nil)
337         end
338     end
339
340     private
341     def cleanup_dir(dir)
342         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
343         Dir.delete(dir)
344     end
345
346     def load_into_pixbuf_full
347         if @pixbuf_full.nil?
348             msg 3, ">>> load_into_pixbuf_full #{path}"
349             if type == 'video'
350                 tmp = Tempfile.new("boohclassifiertemp")
351                 tmp.close!
352                 Dir.mkdir(dest_dir = tmp.path)
353                 orig_base = File.basename(path)
354                 if ! gen_video_thumbnail(path, dest_dir, orig_base, false, 0)
355                     cleanup_dir(dest_dir)
356                     return
357                 end
358                 image_path = "#{dest_dir}/#{orig_base}.jpg000000.jpg"
359             else
360                 image_path = @path
361             end
362             begin
363                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
364             rescue Gdk::PixbufError
365                 msg 0, "Cannot load #{image_path}: #{$!}"
366                 return
367             end
368             if @pixbuf_full
369                 if @angle.nil?
370                     if type == 'image'
371                         @angle = guess_rotate(image_path)
372                     else
373                         @angle = 0
374                     end
375                 end
376                 if @angle != 0
377                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
378                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
379                 end
380                 if @pixbuf_full.height > @@max_height
381                     #- save a lot of memory, don't store in actual full size
382                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
383                 end
384             end
385             if type == 'video'
386                 cleanup_dir(dest_dir)
387             end
388         end
389     end
390
391     def to_s
392         @path
393     end
394 end
395
396 class MainView < Gtk::DrawingArea
397
398     def initialize
399         super()
400         signal_connect('expose-event') { draw }
401         signal_connect('configure-event') { update_shown; GC.start }
402         signal_connect('realize') {
403             @preloader = Thread.new {
404                 #- background preloading
405                 while true
406                     msg 3, "background main preloading triggered..."
407                     if ! @entry.nil?
408                         index = $allentries.index(@entry)
409                         w, h = window.size
410                         w -= $videoborder_pixbuf.width * 2
411                         for j in 1 .. $config['preload-distance'].to_i
412                             i = index + j
413                             if i < $allentries.size
414                                 $allentries[i].pixbuf_main(w, h)
415                             end
416                             i = index - j
417                             if i >= 0
418                                 $allentries[i].pixbuf_main(w, h)
419                             end
420                             GC.start
421                             mem = get_mem
422                             if mem > $config['cache-memory-use-figure']
423                                 msg 3, "too much RSS, stopping main preloading"
424                                 break
425                             end
426                         end
427                         check_memory_free_cache_if_needed
428                     end
429                     Thread.stop
430                 end
431             }
432             @preloader.priority = -2
433         }
434     end
435
436     def set_shown_entry(entry)
437         if ! entry.nil? && entry == @entry
438             return
439         end
440         @entry = entry
441         if ! entry.nil?
442             if ! @entry.button
443                 #- not loaded yet
444                 return
445             else
446                 @entry.button.grab_focus
447             end
448         end
449         redraw        
450         @preloader.run
451     end
452
453     def get_shown_entry
454         return @entry
455     end
456
457     def show_next_entry(entry)
458         index = $allentries.index(entry) + 1
459         if index < $allentries.size
460             set_shown_entry($allentries[index])
461         end
462     end
463
464     def redraw
465         update_shown
466         w, h = window.size
467         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
468         window.clear
469         draw
470         window.end_paint
471     end
472
473     def update_shown
474         if @entry
475             width, height = window.size 
476             usable_width = width - $videoborder_pixbuf.width * 2
477             @pixbuf = @entry.pixbuf_main(usable_width, height)
478             if @pixbuf.width == usable_width
479                 @xpos = $videoborder_pixbuf.width
480                 @ypos = (height-@pixbuf.height)/2
481             else
482                 @xpos = (width-@pixbuf.width)/2
483                 @ypos = (height-@pixbuf.height)/2
484             end
485             @preloader.run
486         else
487             @pixbuf = nil
488         end
489     end
490
491     def draw
492         if @pixbuf
493             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
494             if @entry && @entry.type == 'video'
495                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
496             end
497         end
498     end
499 end
500
501 def check_memory_free_cache_if_needed
502     GC.start
503     mem = get_mem
504     i = $allentries.index($mainview.get_shown_entry)
505     msg 3, "mem: #{mem} index: #{i}"
506     return if i.nil?
507     ($allentries.size - 1).downto(1) { |j|
508         if mem < $config['cache-memory-use-figure'] * 2 / 3
509             break
510         end
511         index = i + j
512         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
513         freedsomething = false
514         if i + j < $allentries.size
515             freedsomething |= $allentries[i+j].free_pixbuf_full
516         end
517         if i - j > 0
518             freedsomething |= $allentries[i-j].free_pixbuf_full
519         end
520         if freedsomething
521             GC.start
522             mem = get_mem
523             msg 3, "\tmem now: #{mem}"
524         end
525     }
526 end
527
528 def autoscroll_if_needed(button)
529     xpos_left = button.allocation.x
530     xpos_right = button.allocation.x + button.allocation.width
531     hadj = $imagesline_sw.hadjustment
532     current_minx_visible = hadj.value
533     current_maxx_visible = hadj.value + hadj.page_size
534     if xpos_left < current_minx_visible
535         #- autoscroll left
536         newval = hadj.value - (current_minx_visible - xpos_left)
537         hadj.value = newval
538         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
539     elsif xpos_right > current_maxx_visible
540         #- autoscroll right
541         newval = hadj.value + (xpos_right - current_maxx_visible)
542         if newval > hadj.upper - hadj.page_size
543             newval = hadj.upper - hadj.page_size
544         end
545         hadj.value = newval
546         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
547     end
548 end
549
550 def show_popup(parent, msg, *options)
551     dialog = Gtk::Dialog.new
552     if options[0]
553         options = options[0]
554     else
555         options = {}
556     end
557     if options[:title]
558         dialog.title = options[:title]
559     else
560         dialog.title = utf8(_("Booh message"))
561     end
562     lbl = Gtk::Label.new
563     if options[:nomarkup]
564         lbl.text = msg
565     else
566         lbl.markup = msg
567     end
568     if options[:centered]
569         lbl.set_justify(Gtk::Justification::CENTER)
570     end
571     if options[:selectable]
572         lbl.selectable = true
573     end
574     if options[:topwidget]
575         dialog.vbox.add(options[0][:topwidget])
576     end
577     if options[:scrolled]
578         sw = Gtk::ScrolledWindow.new(nil, nil)
579         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
580         sw.add_with_viewport(lbl)
581         dialog.vbox.add(sw)
582         dialog.set_default_size(500, 600)
583     else
584         dialog.vbox.add(lbl)
585         dialog.set_default_size(200, 120)
586     end
587     if options[:bottomwidget]
588         dialog.vbox.add(options[:bottomwidget])
589     end
590     if options[:okcancel]
591         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
592     end
593     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
594
595     if options[:pos_centered]
596         dialog.window_position = Gtk::Window::POS_CENTER
597     else
598         dialog.window_position = Gtk::Window::POS_MOUSE
599     end
600
601     if options[:linkurl]
602         linkbut = Gtk::Button.new('')
603         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
604         linkbut.signal_connect('clicked') {
605             open_url(options[0][:linkurl] + '/index.html')
606             dialog.response(Gtk::Dialog::RESPONSE_OK)
607             set_mousecursor_normal
608         }
609         linkbut.relief = Gtk::RELIEF_NONE
610         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
611         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
612         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
613     end
614
615     dialog.show_all
616
617     if options[:stuff_connector]
618         options[:stuff_connector].call({ :dialog => dialog })
619     end
620                                         
621     if !options[:not_transient]
622         dialog.transient_for = parent
623         dialog.run { |response|
624             if options[:data_getter]
625                 options[:data_getter].call
626             end
627             dialog.destroy
628             if options[:okcancel]
629                 return response == Gtk::Dialog::RESPONSE_OK
630             end
631         }
632     else
633         dialog.signal_connect('response') { dialog.destroy }
634     end
635 end
636
637 def thumbnail_keypressed(entry, event)
638     if event.state & Gdk::Window::MOD1_MASK != 0
639         #- ALT pressed: Alt-Left and Alft-Right rotate
640         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
641             if event.keyval == Gdk::Keyval::GDK_Left
642                 entry.angle = (entry.angle - 90) % 360
643             else
644                 entry.angle = (entry.angle + 90) % 360
645             end
646             entry.free_pixbuf_full
647             entry.free_pixbuf_main
648             entry.free_pixbuf_thumbnail
649             $mainview.redraw
650             entry.image.pixbuf = entry.pixbuf_thumbnail
651         end
652
653     elsif event.state & Gdk::Window::CONTROL_MASK != 0
654         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
655         if event.keyval == Gdk::Keyval::GDK_z
656             perform_undo
657         end
658         if event.keyval == Gdk::Keyval::GDK_r
659             perform_redo
660         end
661
662     else
663         removed_before = entry.removed
664         label_before = entry.labeled
665
666         if event.keyval == Gdk::Keyval::GDK_Delete
667             entry.removed = true
668             entry.labeled = nil
669             entry.show_bg
670             $mainview.show_next_entry(entry)
671
672             save_undo(_("set for removal"),
673                       proc {
674                           entry.removed = removed_before
675                           entry.labeled = label_before
676                           entry.show_bg
677                           $mainview.set_shown_entry(entry)
678                           proc {
679                               entry.removed = true
680                               entry.labeled = nil
681                               entry.show_bg
682                               $mainview.set_shown_entry(entry)
683                           }
684                       })
685
686         elsif event.keyval == Gdk::Keyval::GDK_space
687             entry.removed = false
688             entry.labeled = nil
689             entry.show_bg
690             $mainview.show_next_entry(entry)
691
692             save_undo(_("remove label"),
693                       proc {
694                           entry.removed = removed_before
695                           entry.labeled = label_before
696                           entry.show_bg
697                           $mainview.set_shown_entry(entry)
698                           proc {
699                               entry.removed = false
700                               entry.labeled = nil
701                               entry.show_bg
702                               $mainview.set_shown_entry(entry)
703                           }
704                       })
705
706         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
707             cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
708             msg 2, cmd
709             system(cmd)
710
711         else
712             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
713             if char =~ /^[a-zA-z0-9]$/
714                 label = $labels[char]
715                 
716                 if label.nil?
717                     vb = Gtk::VBox.new(false, 0)
718                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
719                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::Button.new(utf8(_("  Change color  ")))))
720                     text = nil
721                     color = nil
722                     bt.signal_connect('clicked') {
723                         color = $colors.shift
724                         if color.nil?
725                             color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
726                         end
727                         bt.modify_bg(Gtk::StateType::NORMAL, color)
728                         bt.modify_bg(Gtk::StateType::PRELIGHT, color)
729                         bt.modify_bg(Gtk::StateType::ACTIVE, color.darker)
730                     }
731                     bt.clicked
732                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
733                         while $labels.has_key?(entry.text[0,1])
734                             entry.text = entry.text.sub(/./, '')
735                         end
736                     }
737                     if show_popup($main_window,
738                                   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,
739                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
740                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
741                                                                        entry.position = -1
742                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
743                         if text.length > 0
744                             char = text[0,1]  #- in case it changed
745                             label = Label.new(text)
746                             label.color = color
747                             $labels[char] = label
748                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
749                             $labels_vbox.pack_start(evt = Gtk::EventBox.new.add(lbl).modify_bg(Gtk::StateType::NORMAL, label.color).show_all)
750                         end
751                     end
752
753                 else
754                     entry.removed = false
755                     entry.labeled = label
756                     entry.show_bg
757                     $mainview.show_next_entry(entry)
758
759                     save_undo(_("set label"),
760                               proc {
761                                   entry.removed = removed_before
762                                   entry.labeled = label_before
763                                   entry.show_bg
764                                   $mainview.set_shown_entry(entry)
765                                   proc {
766                                       entry.removed = false
767                                       entry.labeled = label
768                                       entry.show_bg
769                                       $mainview.set_shown_entry(entry)
770                                   }
771                               })
772                 end
773             end
774         end
775     end
776 end
777
778 def sb_msg(msg)
779     $statusbar.pop(0)
780     if msg
781         $statusbar.push(0, utf8(msg))
782     end
783 end
784
785 def real_show_entry(entry, tooltips, grab_focus)
786     #- for scoping the actual reference to 'entry'
787     gtk_thread_protect(proc {
788         msg 3, "using entry #{entry}"
789         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
790         if entry.type == 'video'
791             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
792                                                              pack_start(entry.image).
793                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
794             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
795             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
796         else
797             entry.button = Gtk::Button.new.set_image(entry.image)
798         end
799         tooltips.set_tip(entry.button, File.basename(entry.path).gsub(/\.[^.]+$/, ''), nil)
800         $imagesline.pack_start(entry.button.show_all, false, false)
801         entry.button.signal_connect('clicked') { $mainview.set_shown_entry(entry) }
802         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
803         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
804         if grab_focus
805             entry.button.grab_focus
806         end
807     })
808 end
809
810 def show_entries
811     e = Thread.new {
812         t1 = Time.now
813         sb_msg(_("Loading images..."))
814         tooltips = Gtk::Tooltips.new
815         counter = 0
816         toremove = []
817         grab_focus = true
818         i = 0
819         total_size = 0
820         while i < $allentries.size
821             entry = $allentries[i]
822             if entry.pixbuf_full
823                 total_size += file_size(entry.path)
824                 entry.pixbuf_thumbnail
825                 real_show_entry(entry, tooltips, grab_focus)
826                 grab_focus = false
827                 if i % 4 == 0
828                     check_memory_free_cache_if_needed
829                 end
830                 counter += 1
831                 i = i + 1
832
833             else
834                 $allentries.delete_at(i)
835             end
836         end
837         check_memory_free_cache_if_needed
838         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
839     }
840     e.priority = -1
841 end
842
843 def reset_all
844     reset_labels
845     reset_thumbnails
846     $mainview.set_shown_entry(nil)
847     sb_msg(nil)
848 end
849
850 def open_dir(path)
851     #- remove visual stuff, so that user will see something is happening
852     reset_all
853     sb_msg(_("Scanning source directory..."))
854
855     path = File.expand_path(path.sub(%r|/$|, ''))
856     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
857     #- validate first
858     examined_dirs.each { |dir|
859         if dir =~ /'/
860             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
861         end
862         Dir.entries(dir).each { |file|
863             if file =~ /['"\[\]]/
864                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
865             end
866         }
867     }
868
869     #- scan for populate second
870     examined_dirs.each { |dir|
871         if File.basename(dir) =~ /^\./
872             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
873             next
874         end
875         Dir.entries(dir).each { |file|
876             type = entry2type(file)
877            if type
878 #&& $allentries.size < 120
879                 $allentries << Entry.new(File.join(dir, file), type)
880             end
881         }
882     }
883     $workingdir = path
884     show_entries
885     $execute.sensitive = true
886     return nil
887 end
888
889 def open_dir_popup
890     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
891                                     nil,
892                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
893                                     nil,
894                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
895     fc.transient_for = $main_window
896     if $workingdir
897         fc.current_folder = $workingdir
898     end
899     ok = false
900     while !ok
901         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
902             msg = open_dir(fc.filename)
903             if msg
904                 show_popup(fc, msg)
905                 ok = false
906             else
907                 ok = true
908             end
909         else
910             ok = true
911         end
912     end
913     fc.destroy
914 end
915
916 def gtk_thread_protect(proc, *params)
917     if Thread.current == Thread.main
918         proc.call(*params)
919     else
920         $protect_gtk_pending_calls.synchronize {
921             $gtk_pending_calls << [ proc, params ]
922         }
923     end
924 end
925
926 def gtk_thread_flush
927     $protect_gtk_pending_calls.synchronize {
928         if $gtk_pending_calls.size > 0
929             elem = $gtk_pending_calls.shift
930             elem[0].call(*elem[1])
931         end
932     }
933 end
934
935 def try_quit(*options)
936     Gtk.main_quit
937 end
938
939 def execute
940     dialog = Gtk::Dialog.new
941     dialog.title = utf8(_("Booh message"))
942
943     vb1 = Gtk::VBox.new(false, 5)
944     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!")))
945     vb1.pack_start(label, false, false)
946
947     table = Gtk::Table.new(0, 0, false)
948     table.set_row_spacings(5)
949     table.set_column_spacings(5)
950     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)
951     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)
952     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)
953     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)
954     add_row = proc { |row, name, color, truthproc, normal|
955         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)),
956                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
957         counter = 0
958         examples = Gtk::HBox.new(false, 5)
959         $allentries.each { |entry|
960             if truthproc.call(entry)
961                 counter += 1
962                 if counter < 4
963                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
964                     if entry.type == 'video'
965                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
966                                                   pack_start(thumbnail).
967                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
968                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
969                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
970                     end
971                     examples.pack_start(thumbnail, false, false)
972                 elsif counter == 4
973                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
974                 end
975             end
976         }
977         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
978         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
979
980         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
981         iter = combostore.append
982         if normal
983             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
984             iter[1] = utf8(_("Move to:"))
985         else
986             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
987             iter[1] = utf8(_("Permanently remove"))
988         end
989         iter = combostore.append
990         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
991         iter[1] = utf8(_("Do nothing"))
992         combo = Gtk::ComboBox.new(combostore)
993         combo.active = 0
994         renderer = Gtk::CellRendererPixbuf.new
995         combo.pack_start(renderer, false)
996         combo.set_attributes(renderer, :pixbuf => 0)
997         renderer = Gtk::CellRendererText.new
998         combo.pack_start(renderer, true)
999         combo.set_attributes(renderer, :text => 1)
1000
1001         if normal
1002             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1003             lastpath = $workingdir
1004             pathbutton.signal_connect('clicked') {
1005                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1006                                                 nil,
1007                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1008                                                 nil,
1009                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1010                 fc.transient_for = dialog
1011                 fc.current_folder = lastpath
1012                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1013                     pathlabel.text = fc.filename
1014                 end
1015                 lastpath = fc.filename
1016                 fc.destroy
1017             }
1018             combo.signal_connect('changed') {
1019                 pathbutton.sensitive = combo.active == 0
1020             }
1021             vb = Gtk::VBox.new(false, 5)
1022             vb.pack_start(combo, false, false)
1023             vb.pack_start(pathbutton, false, false)
1024             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1025             { :combo => combo, :pathlabel => pathlabel }
1026         else
1027             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1028             { :combo => combo }
1029         end
1030     }
1031     stuff = {}
1032     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), Gdk::Color.new(65535, 0, 0), proc { |entry| entry.removed }, false)
1033     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1034     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1035
1036     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1037     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1038     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 ]))
1039     if toremove_amount > 0
1040         vb1.pack_start(check_removal, false, false)
1041         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1042             check_removal.sensitive = widget.active == 0
1043         }
1044     end
1045
1046     dialog.vbox.add(vb1)
1047
1048     dialog.set_default_size(800, 600)
1049     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1050     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1051     dialog.window_position = Gtk::Window::POS_MOUSE
1052     dialog.transient_for = $main_window
1053
1054     dialog.show_all
1055
1056     while true
1057         dialog.run { |response|        
1058             if response == Gtk::Dialog::RESPONSE_OK
1059                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1060                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1061                     break
1062                 end
1063                 problem = false
1064                 label2entries = {}
1065                 $labels.values.each { |label| label2entries[label] = [] }
1066                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1067                 stuff.keys.each { |key|
1068                     if key.is_a?(Label) && stuff[key][:combo].active == 0
1069                         destination = stuff[key][:pathlabel].text
1070                         if destination[0] != ?/
1071                             show_popup(dialog, utf8(_("You have not selected a directory where to move %s.") % key.name))
1072                             problem = true
1073                             break
1074                         end
1075                         st = File.stat(destination)
1076                         if ! st.directory? || ! st.writable?
1077                             show_popup(dialog, utf8(_("Directory where to move %s is not valid or not writable.") % key.name))
1078                             problem = true
1079                             break
1080                         end
1081                         label2entries[key].each { |entry|
1082                             begin
1083                                 File.stat(File.join(destination, File.basename(entry.path)))
1084                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in '%s'.") % [ File.basename(entry.path), destination ]))
1085                                 problem = true
1086                                 break
1087                             rescue
1088                             end
1089                         }
1090                         if problem
1091                             break
1092                         end
1093                     end
1094                 }
1095                 if ! problem
1096                     begin
1097                         moved = 0
1098                         stuff.keys.each { |key|
1099                             if key.is_a?(Label) && stuff[key][:combo].active == 0
1100                                 destination = stuff[key][:pathlabel].text
1101                                 label2entries[key].each { |entry|
1102                                     File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1103                                     moved += 1
1104                                 }
1105                             end
1106                         }
1107                         removed = 0
1108                         if stuff['toremove'][:combo].active == 0
1109                             $allentries.each { |entry|
1110                                 if entry.removed
1111                                     File.delete(entry.path)
1112                                     removed += 1
1113                                 end
1114                             }
1115                         end
1116                     rescue
1117                         msg 1, "woops: #{$!}"
1118                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1119                     end
1120                     show_popup(dialog, utf8(_("Successfully moved %d files and removed %d files.") % [ moved, removed ]))
1121                     dialog.destroy
1122                     reset_all
1123                     return
1124                 end
1125
1126             else
1127                 dialog.destroy
1128                 return
1129             end
1130         }
1131     end
1132 end
1133
1134 def preferences
1135     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1136                              $main_window,
1137                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1138                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1139                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1140
1141     tooltips = Gtk::Tooltips.new
1142     
1143     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1144     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1145                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1146     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1147                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1148     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1149
1150     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1151                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1152     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1153                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1154     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1155
1156     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1157                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1158     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1159                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1160     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1161
1162     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1163                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1164     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1165                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1166     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1167                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1168                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1169     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1170     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1171     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1172                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1173                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1174     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1175     cache_memfree_radio.signal_connect('toggled') {
1176         if cache_memfree_radio.active?
1177             cache_memfree_label.sensitive = true
1178             cache_specify_label.sensitive = false
1179         else
1180             cache_specify_label.sensitive = true
1181             cache_memfree_label.sensitive = false
1182         end
1183     }
1184     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1185     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1186         cache_memfree_spin.value = $1.to_i
1187     else
1188         cache_specify_spin.value = $config['cache-memory-use'].to_i
1189     end
1190
1191     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1192                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1193     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1194     update_exif_orientation_check.active = $config['rotate-set-exif']
1195
1196     dialog.vbox.show_all
1197     dialog.run { |response|
1198         if response == Gtk::Dialog::RESPONSE_OK
1199             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1200             $config['browser'] = from_utf8(browser_entry.text)
1201             $config['preload-distance'] = preload_distance.value
1202             $config['rotate-set-exif'] = update_exif_orientation_check.active?
1203             if cache_memfree_radio.active?
1204                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1205             else
1206                 $config['cache-memory-use'] = cache_specify_spin.value
1207             end
1208             set_cache_memory_use_figure
1209         end
1210     }
1211     dialog.destroy
1212 end
1213
1214 def perform_undo
1215     if $undo_mb.sensitive?
1216         $redo_mb.sensitive = true
1217         if not more_undoes = UndoHandler.undo($statusbar)
1218             $undo_mb.sensitive = false
1219         end
1220     end
1221 end
1222
1223 def perform_redo
1224     if $redo_mb.sensitive?
1225         $undo_mb.sensitive = true
1226         if not more_redoes = UndoHandler.redo($statusbar)
1227             $redo_mb.sensitive = false
1228         end
1229     end
1230 end
1231
1232 def create_menubar    
1233     #- menu
1234     mb = Gtk::MenuBar.new
1235
1236     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1237     filesubmenu = Gtk::Menu.new
1238     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1239     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1240     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1241     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1242     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1243     filemenu.set_submenu(filesubmenu)
1244     mb.append(filemenu)
1245
1246     open.signal_connect('activate') { open_dir_popup }
1247     $execute.signal_connect('activate') { execute }
1248     quit.signal_connect('activate') { try_quit }
1249
1250     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1251     editsubmenu = Gtk::Menu.new
1252     editsubmenu.append($undo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1253     editsubmenu.append($redo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1254     editsubmenu.append(           Gtk::SeparatorMenuItem.new)
1255     editsubmenu.append(prefs    = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1256     editmenu.set_submenu(editsubmenu)
1257     mb.append(editmenu)
1258
1259     $undo_mb.signal_connect('activate') { perform_undo }
1260     $redo_mb.signal_connect('activate') { perform_redo }
1261     prefs.signal_connect('activate') { preferences }
1262     
1263     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1264     helpsubmenu = Gtk::Menu.new
1265     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1266     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1267     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1268     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1269     helpmenu.set_submenu(helpsubmenu)
1270     mb.append(helpmenu)
1271
1272     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1273     about.signal_connect('activate') { call_about }
1274
1275
1276     #- no toolbar, to save height
1277
1278     return mb
1279 end
1280
1281 def reset_labels
1282     for child in $labels_vbox.children
1283         $labels_vbox.remove(child)
1284     end
1285     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1286     $labels = {}
1287 end
1288
1289 def reset_thumbnails
1290     $allentries = []
1291     for child in $imagesline.children
1292         $imagesline.remove(child)
1293     end
1294 end
1295
1296 def create_main_window
1297
1298     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1299     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1300
1301     mb = create_menubar
1302
1303     main_vbox = Gtk::VBox.new(false, 0)
1304     main_vbox.pack_start(mb, false, false)
1305     mainview_hbox = Gtk::HBox.new
1306     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1307     reset_labels
1308     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1309     main_vbox.pack_start(mainview_hbox, true, true)
1310     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1311     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1312     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1313     main_vbox.pack_start($imagesline_sw, false, false)
1314     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1315
1316     $imagesline.set_size_request(-1, Entry.thumbnails_height + $imagesline_sw.hscrollbar.size_request[1])
1317
1318     $main_window = Gtk::Window.new
1319     $main_window.add(main_vbox)
1320     $main_window.signal_connect('delete-event') {
1321         try_quit({ :disallow_cancel => true })
1322     }
1323
1324     #- read/save size and position of window
1325     if $config['pos-x'] && $config['pos-y']
1326         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1327     else
1328         $main_window.window_position = Gtk::Window::POS_CENTER
1329     end
1330     msg 3, "size: #{$config['width']}x#{$config['height']}"
1331     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1332     $main_window.signal_connect('configure-event') {
1333         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1334         x, y = $main_window.window.root_origin
1335         width, height = $main_window.window.size
1336         $config['pos-x'] = x
1337         $config['pos-y'] = y
1338         $config['width'] = width
1339         $config['height'] = height
1340         false
1341     }
1342
1343     $protect_gtk_pending_calls = Mutex.new
1344     $gtk_pending_calls = []
1345     Gtk.timeout_add(50) {
1346         gtk_thread_flush
1347         true
1348     }
1349
1350     $main_window.show_all
1351 end
1352
1353
1354 handle_options
1355 Thread.abort_on_exception = true
1356 read_config
1357 Gtk.init
1358
1359
1360 create_main_window
1361 check_config
1362
1363 if ARGV[0]
1364     open_dir(ARGV[0])
1365 end
1366 Gtk.main
1367
1368 write_config