*** empty log message ***
[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_80%'
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 $color_red = Gdk::Color.new(65535, 0, 0)
214 $colors = [ Gdk::Color.new(0, 65535, 0),
215             Gdk::Color.new(0, 0, 65535),
216             Gdk::Color.new(65535, 65535, 0),
217             Gdk::Color.new(0, 65535, 65535),
218             Gdk::Color.new(65535, 0, 65535) ]
219
220 class Label
221     attr_accessor :color, :name
222     def initialize(name)
223         @name = name
224     end
225 end
226
227 class Entry
228     @@thumbnails_height = 64
229     @@max_height = nil
230     def Entry.thumbnails_height
231         return @@thumbnails_height
232     end
233
234     attr_accessor :path, :type, :angle, :button, :image, :alignment, :removed, :labeled
235
236     def initialize(path, type)
237         @path = path
238         @type = type
239         if @@max_height.nil?
240             @@max_height = $main_window.root_window.size[1]
241         end
242         @protect_cleanup = Mutex.new
243     end
244
245     def pixbuf_full
246         @protect_cleanup.synchronize {
247             if @pixbuf_full.nil?
248                 msg 3, ">>> pixbuf_full #{path}"
249                 load_into_pixbuf_full
250             end
251             return @pixbuf_full
252         }
253     end
254     def free_pixbuf_full
255         @protect_cleanup.synchronize {
256             if @pixbuf_full.nil?
257                 return false
258             else
259                 msg 3, ">>> free_pixbuf_full #{path}"
260                 @pixbuf_full = nil
261                 return true
262             end
263         }
264     end
265     def pixbuf_main(width, height)
266         @protect_cleanup.synchronize {
267             if @pixbuf_main.nil? || width != @width || height != @height
268                 msg 3, ">>> pixbuf_main #{path}"
269                 @width = width
270                 @height = height
271                 load_into_pixbuf_full  #- make sure it is loaded
272                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
273                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
274                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
275                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
276                     else
277                         @pixbuf_main = @pixbuf_full
278                     end
279                 else
280                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
281                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
282                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
283                     else
284                         @pixbuf_main = @pixbuf_full
285                     end
286                 end
287             end
288             return @pixbuf_main
289         }
290     end
291     def free_pixbuf_main
292         @protect_cleanup.synchronize {
293             if @pixbuf_main.nil?
294                 return false
295             else
296                 msg 3, ">>> free_pixbuf_main #{path}"
297                 @pixbuf_main = nil
298                 return true
299             end
300         }
301     end
302     def pixbuf_thumbnail
303         return @protect_cleanup.synchronize {
304             if @pixbuf_thumbnail.nil?
305                 msg 3, ">>> pixbuf_thumbnail #{path}"
306                 load_into_pixbuf_full  #- make sure it is loaded
307                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
308             end
309             return @pixbuf_thumbnail
310         }
311     end
312     def free_pixbuf_thumbnail
313         @protect_cleanup.synchronize {
314             if @pixbuf_thumbnail.nil?
315                 return false
316             else
317                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
318                 @pixbuf_thumbnail = nil
319                 return true
320             end
321         }
322     end
323
324     def outline_color
325         if removed
326             return $color_red
327         elsif labeled
328             return labeled.color
329         else
330             return nil
331         end
332     end
333
334     def show_bg
335         if outline_color.nil?
336             button.modify_bg(Gtk::StateType::NORMAL, nil)
337             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
338             button.modify_bg(Gtk::StateType::ACTIVE, nil)
339         else
340             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
341             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
342             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
343         end
344     end
345
346     def get_beautified_name
347         if type == 'image'
348             size = get_image_size(path)
349             return _("%s (%sx%s, %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
350                                              size[:x],
351                                              size[:y],
352                                              commify(file_size(path)/1024)]
353         else
354             return _("%s (video - %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
355                                              commify(file_size(path)/1024)]
356         end
357     end
358
359     private
360     def cleanup_dir(dir)
361         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
362         Dir.delete(dir)
363     end
364
365     def load_into_pixbuf_full
366         if @pixbuf_full.nil?
367             msg 3, ">>> load_into_pixbuf_full #{path}"
368             if @type == 'video'
369                 tmp = Tempfile.new("boohclassifiertemp")
370                 tmp.close!
371                 Dir.mkdir(dest_dir = tmp.path)
372                 orig_base = File.basename(path)
373                 if ! gen_video_thumbnail(path, dest_dir, orig_base, false, 0)
374                     cleanup_dir(dest_dir)
375                     return
376                 end
377                 image_path = "#{dest_dir}/#{orig_base}.jpg000000.jpg"
378             else
379                 image_path = @path
380             end
381             begin
382                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
383             rescue Gdk::PixbufError
384                 msg 0, "Cannot load #{image_path}: #{$!}"
385                 return
386             end
387             if @pixbuf_full
388                 if @angle.nil?
389                     if @type == 'image'
390                         @angle = guess_rotate(image_path)
391                     else
392                         @angle = 0
393                     end
394                 end
395                 if @angle != 0
396                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
397                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
398                 end
399                 if @pixbuf_full.height > @@max_height
400                     #- save a lot of memory, don't store in actual full size
401                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
402                 end
403             end
404             if @type == 'video'
405                 cleanup_dir(dest_dir)
406             end
407         end
408     end
409
410     def to_s
411         @path
412     end
413 end
414
415 class MainView < Gtk::DrawingArea
416
417     @@borders_thickness = 5
418     @@borders_length = 25
419
420     def MainView.get_usable_width(available_width)
421         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
422     end
423
424     def MainView.get_usable_height(available_height)
425         return available_height - @@borders_thickness * 2
426     end
427     
428     def initialize
429         super()
430         signal_connect('expose-event') { draw }
431         signal_connect('configure-event') { update_shown; GC.start }
432         signal_connect('realize') {
433             @preloader = Thread.new {
434                 #- background preloading
435                 while true
436                     msg 3, "background main preloading triggered..."
437                     if ! @entry.nil?
438                         index = $allentries.index(@entry)
439                         w, h = window.size
440                         w = MainView.get_usable_width(w)
441                         h = MainView.get_usable_height(h)
442                         for j in 1 .. $config['preload-distance'].to_i
443                             i = index + j
444                             if i < $allentries.size
445                                 $allentries[i].pixbuf_main(w, h)
446                             end
447                             i = index - j
448                             if i >= 0
449                                 $allentries[i].pixbuf_main(w, h)
450                             end
451                             GC.start
452                             mem = get_mem
453                             if mem > $config['cache-memory-use-figure']
454                                 msg 3, "too much RSS, stopping main preloading"
455                                 break
456                             end
457                         end
458                         check_memory_free_cache_if_needed
459                     end
460                     Thread.stop
461                 end
462             }
463             @preloader.priority = -2
464         }
465     end
466
467     def set_shown_entry(entry)
468         if ! entry.nil? && entry == @entry
469             return
470         end
471         if ! entry.nil?
472             if ! entry.button
473                 #- not loaded yet
474                 return
475             else
476                 entry.button.grab_focus
477             end
478         end
479         @entry = entry
480         redraw        
481         @preloader.run
482     end
483
484     def get_shown_entry
485         return @entry
486     end
487
488     def show_next_entry(entry)
489         index = $allentries.index(entry) + 1
490         if index < $allentries.size
491             set_shown_entry($allentries[index])
492         end
493     end
494
495     def redraw
496         update_shown
497         w, h = window.size
498         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
499         window.clear
500         draw
501         window.end_paint
502     end
503
504     def update_shown
505         if @entry
506             width, height = window.size 
507             usable_width = MainView.get_usable_width(width)
508             usable_height = MainView.get_usable_height(height)
509             @pixbuf = @entry.pixbuf_main(usable_width, usable_height)
510             @xpos = (width - @pixbuf.width)/2
511             @ypos = (height - @pixbuf.height)/2
512             @preloader.run
513         else
514             @pixbuf = nil
515         end
516     end
517
518     def draw
519         if @pixbuf
520             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
521             if @entry && @entry.type == 'video'
522                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
523             end
524             if ! @entry.outline_color.nil?
525                 gc = Gdk::GC.new(window)
526                 colormap.alloc_color(@entry.outline_color, false, true)
527                 gc.set_foreground(@entry.outline_color)
528                 if @entry && @entry.type == 'video'
529                     xleft = @xpos - $videoborder_pixbuf.width
530                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
531                 else
532                     xleft = @xpos
533                     xright = @xpos + @pixbuf.width
534                 end
535                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
536                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
537                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
538                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
539                                                [xleft - @@borders_thickness, @ypos - 1],
540                                                [xleft - 1, @ypos - 1],
541                                                [xleft - 1, @ypos + @pixbuf.height + 1],
542                                                [xright + 1, @ypos + @pixbuf.height + 1],
543                                                [xright + 1, @ypos - 1],
544                                                [xleft - @@borders_thickness, @ypos - 1]])
545             end
546         end
547     end
548 end
549
550 def check_memory_free_cache_if_needed
551     GC.start
552     mem = get_mem
553     i = $allentries.index($mainview.get_shown_entry)
554     msg 3, "mem: #{mem} index: #{i}"
555     return if i.nil?
556     ($allentries.size - 1).downto(1) { |j|
557         if mem < $config['cache-memory-use-figure'] * 2 / 3
558             break
559         end
560         index = i + j
561         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
562         freedsomething = false
563         if i + j < $allentries.size
564             freedsomething |= $allentries[i+j].free_pixbuf_full
565         end
566         if i - j > 0
567             freedsomething |= $allentries[i-j].free_pixbuf_full
568         end
569         if freedsomething
570             GC.start
571             mem = get_mem
572             msg 3, "\tmem now: #{mem}"
573         end
574     }
575 end
576
577 def autoscroll_if_needed(button)
578     xpos_left = button.allocation.x
579     xpos_right = button.allocation.x + button.allocation.width
580     hadj = $imagesline_sw.hadjustment
581     current_minx_visible = hadj.value
582     current_maxx_visible = hadj.value + hadj.page_size
583     if xpos_left < current_minx_visible
584         #- autoscroll left
585         newval = hadj.value - (current_minx_visible - xpos_left)
586         hadj.value = newval
587         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
588     elsif xpos_right > current_maxx_visible
589         #- autoscroll right
590         newval = hadj.value + (xpos_right - current_maxx_visible)
591         if newval > hadj.upper - hadj.page_size
592             newval = hadj.upper - hadj.page_size
593         end
594         hadj.value = newval
595         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
596     end
597 end
598
599 def show_popup(parent, msg, *options)
600     dialog = Gtk::Dialog.new
601     if options[0]
602         options = options[0]
603     else
604         options = {}
605     end
606     if options[:title]
607         dialog.title = options[:title]
608     else
609         dialog.title = utf8(_("Booh message"))
610     end
611     lbl = Gtk::Label.new
612     if options[:nomarkup]
613         lbl.text = msg
614     else
615         lbl.markup = msg
616     end
617     if options[:centered]
618         lbl.set_justify(Gtk::Justification::CENTER)
619     end
620     if options[:selectable]
621         lbl.selectable = true
622     end
623     if options[:topwidget]
624         dialog.vbox.add(options[0][:topwidget])
625     end
626     if options[:scrolled]
627         sw = Gtk::ScrolledWindow.new(nil, nil)
628         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
629         sw.add_with_viewport(lbl)
630         dialog.vbox.add(sw)
631         dialog.set_default_size(500, 600)
632     else
633         dialog.vbox.add(lbl)
634         dialog.set_default_size(200, 120)
635     end
636     if options[:bottomwidget]
637         dialog.vbox.add(options[:bottomwidget])
638     end
639     if options[:okcancel]
640         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
641     end
642     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
643
644     if options[:pos_centered]
645         dialog.window_position = Gtk::Window::POS_CENTER
646     else
647         dialog.window_position = Gtk::Window::POS_MOUSE
648     end
649
650     if options[:linkurl]
651         linkbut = Gtk::Button.new('')
652         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
653         linkbut.signal_connect('clicked') {
654             open_url(options[0][:linkurl] + '/index.html')
655             dialog.response(Gtk::Dialog::RESPONSE_OK)
656             set_mousecursor_normal
657         }
658         linkbut.relief = Gtk::RELIEF_NONE
659         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
660         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
661         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
662     end
663
664     dialog.show_all
665
666     if options[:stuff_connector]
667         options[:stuff_connector].call({ :dialog => dialog })
668     end
669                                         
670     if !options[:not_transient]
671         dialog.transient_for = parent
672         dialog.run { |response|
673             if options[:data_getter]
674                 options[:data_getter].call
675             end
676             dialog.destroy
677             if options[:okcancel]
678                 return response == Gtk::Dialog::RESPONSE_OK
679             end
680         }
681     else
682         dialog.signal_connect('response') { dialog.destroy }
683     end
684 end
685
686 def video_view(entry)
687     cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
688     msg 2, cmd
689     system(cmd)
690 end
691
692 def thumbnail_keypressed(entry, event)
693     if event.state & Gdk::Window::MOD1_MASK != 0
694         #- ALT pressed: Alt-Left and Alft-Right rotate
695         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
696             if event.keyval == Gdk::Keyval::GDK_Left
697                 entry.angle = (entry.angle - 90) % 360
698             else
699                 entry.angle = (entry.angle + 90) % 360
700             end
701             entry.free_pixbuf_full
702             entry.free_pixbuf_main
703             entry.free_pixbuf_thumbnail
704             $mainview.redraw
705             entry.image.pixbuf = entry.pixbuf_thumbnail
706         end
707
708     elsif event.state & Gdk::Window::CONTROL_MASK != 0
709         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
710         if event.keyval == Gdk::Keyval::GDK_z
711             perform_undo
712         end
713         if event.keyval == Gdk::Keyval::GDK_r
714             perform_redo
715         end
716
717     else
718         removed_before = entry.removed
719         label_before = entry.labeled
720
721         if event.keyval == Gdk::Keyval::GDK_Delete
722             entry.removed = true
723             entry.labeled = nil
724             entry.show_bg
725             $mainview.show_next_entry(entry)
726
727             save_undo(_("set for removal"),
728                       proc {
729                           entry.removed = removed_before
730                           entry.labeled = label_before
731                           entry.show_bg
732                           $mainview.set_shown_entry(entry)
733                           proc {
734                               entry.removed = true
735                               entry.labeled = nil
736                               entry.show_bg
737                               $mainview.set_shown_entry(entry)
738                           }
739                       })
740
741         elsif event.keyval == Gdk::Keyval::GDK_space
742             if entry.labeled
743                 msg = _("Cleared label")
744             elsif entry.removed
745                 msg = _("Cleared set for removal")
746             end
747             entry.removed = false
748             entry.labeled = nil
749             entry.show_bg
750             $mainview.show_next_entry(entry)
751
752             save_undo(msg,
753                       proc {
754                           entry.removed = removed_before
755                           entry.labeled = label_before
756                           entry.show_bg
757                           $mainview.set_shown_entry(entry)
758                           proc {
759                               entry.removed = false
760                               entry.labeled = nil
761                               entry.show_bg
762                               $mainview.set_shown_entry(entry)
763                           }
764                       })
765
766         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
767             video_view(entry)
768
769         else
770             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
771             if char =~ /^[a-zA-z0-9]$/
772                 label = $labels[char]
773                 
774                 if label.nil?
775                     vb = Gtk::VBox.new(false, 0)
776                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
777                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::Button.new(utf8(_("  Change color  ")))))
778                     text = nil
779                     color = nil
780                     bt.signal_connect('clicked') {
781                         color = $colors.shift
782                         if color.nil?
783                             color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
784                         end
785                         bt.modify_bg(Gtk::StateType::NORMAL, color)
786                         bt.modify_bg(Gtk::StateType::PRELIGHT, color)
787                         bt.modify_bg(Gtk::StateType::ACTIVE, color.darker)
788                     }
789                     bt.clicked
790                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
791                         while $labels.has_key?(entry.text[0,1])
792                             entry.text = entry.text.sub(/./, '')
793                         end
794                     }
795                     if show_popup($main_window,
796                                   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,
797                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
798                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
799                                                                        entry.position = -1
800                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
801                         if text.length > 0
802                             char = text[0,1]  #- in case it changed
803                             label = Label.new(text)
804                             label.color = color
805                             $labels[char] = label
806                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
807                             $labels_vbox.pack_start(evt = Gtk::EventBox.new.add(lbl).modify_bg(Gtk::StateType::NORMAL, label.color).show_all)
808                         end
809                     end
810
811                 else
812                     entry.removed = false
813                     entry.labeled = label
814                     entry.show_bg
815                     $mainview.show_next_entry(entry)
816
817                     save_undo(_("set label"),
818                               proc {
819                                   entry.removed = removed_before
820                                   entry.labeled = label_before
821                                   entry.show_bg
822                                   $mainview.set_shown_entry(entry)
823                                   proc {
824                                       entry.removed = false
825                                       entry.labeled = label
826                                       entry.show_bg
827                                       $mainview.set_shown_entry(entry)
828                                   }
829                               })
830                 end
831             end
832         end
833     end
834 end
835
836 def sb_msg(msg)
837     $statusbar.pop(0)
838     if msg
839         $statusbar.push(0, utf8(msg))
840     end
841 end
842
843 def real_show_entry(entry, tooltips, grab_focus)
844     #- for scoping the actual reference to 'entry'
845     gtk_thread_protect(proc {
846         msg 3, "using entry #{entry}"
847         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
848         if entry.type == 'video'
849             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
850                                                              pack_start(entry.image).
851                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
852             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
853             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
854         else
855             entry.button = Gtk::Button.new.set_image(entry.image)
856         end
857         tooltips.set_tip(entry.button, entry.get_beautified_name, nil)
858         $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
859         entry.button.signal_connect('clicked') {
860             if (last_shown = $mainview.get_shown_entry) != entry
861                 $mainview.set_shown_entry(entry)
862                 entry.alignment.set(0.5, 0, 0, 0)
863                 sb_msg(_("Selected %s") % entry.get_beautified_name)
864                 last_shown.nil? or last_shown.alignment.set(0.5, 1, 0, 0)
865             end
866         }
867         entry.button.signal_connect('button-press-event') { |w, event|
868             if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
869                 video_view(entry)
870             end
871         }
872         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
873         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
874         if grab_focus
875             entry.button.grab_focus
876         end
877     })
878 end
879
880 def show_entries
881     $images_loader = Thread.new {
882         t1 = Time.now
883         sb_msg(_("Loading images..."))
884         tooltips = Gtk::Tooltips.new
885         counter = 0
886         toremove = []
887         grab_focus = true
888         i = 0
889         total_size = 0
890         while i < $allentries.size
891             entry = $allentries[i]
892             if entry.pixbuf_full
893                 total_size += file_size(entry.path)
894                 entry.pixbuf_thumbnail
895                 real_show_entry(entry, tooltips, grab_focus)
896                 grab_focus = false
897                 if i % 4 == 0
898                     check_memory_free_cache_if_needed
899                 end
900                 counter += 1
901                 i = i + 1
902
903             else
904                 $allentries.delete_at(i)
905             end
906         end
907         check_memory_free_cache_if_needed
908         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
909     }
910     $images_loader.priority = -1
911 end
912
913 def reset_all
914     $images_loader and $images_loader.kill
915     reset_labels
916     reset_thumbnails
917     $mainview.set_shown_entry(nil)
918     sb_msg(nil)
919 end
920
921 def open_dir(path)
922     #- remove visual stuff, so that user will see something is happening
923     reset_all
924     sb_msg(_("Scanning source directory..."))
925
926     path = File.expand_path(path.sub(%r|/$|, ''))
927     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
928     #- validate first
929     examined_dirs.each { |dir|
930         if dir =~ /'/
931             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
932         end
933         Dir.entries(dir).each { |file|
934             if file =~ /['"\[\]]/
935                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
936             end
937         }
938     }
939
940     #- scan for populate second
941     examined_dirs.each { |dir|
942         if File.basename(dir) =~ /^\./
943             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
944             next
945         end
946         Dir.entries(dir).each { |file|
947             type = entry2type(file)
948            if type
949 #&& $allentries.size < 120
950                 $allentries << Entry.new(File.join(dir, file), type)
951             end
952         }
953     }
954     $workingdir = path
955     show_entries
956     $execute.sensitive = true
957     return nil
958 end
959
960 def open_dir_popup
961     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
962                                     nil,
963                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
964                                     nil,
965                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
966     fc.transient_for = $main_window
967     if $workingdir
968         fc.current_folder = $workingdir
969     end
970     ok = false
971     while !ok
972         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
973             msg = open_dir(fc.filename)
974             if msg
975                 show_popup(fc, msg)
976                 ok = false
977             else
978                 ok = true
979             end
980         else
981             ok = true
982         end
983     end
984     fc.destroy
985 end
986
987 def gtk_thread_protect(proc, *params)
988     if Thread.current == Thread.main
989         proc.call(*params)
990     else
991         $protect_gtk_pending_calls.synchronize {
992             $gtk_pending_calls << [ proc, params ]
993         }
994     end
995 end
996
997 def gtk_thread_flush
998     $protect_gtk_pending_calls.synchronize {
999         if $gtk_pending_calls.size > 0
1000             elem = $gtk_pending_calls.shift
1001             elem[0].call(*elem[1])
1002         end
1003     }
1004 end
1005
1006 def try_quit(*options)
1007     Gtk.main_quit
1008 end
1009
1010 def execute
1011     dialog = Gtk::Dialog.new
1012     dialog.title = utf8(_("Booh message"))
1013
1014     vb1 = Gtk::VBox.new(false, 5)
1015     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!")))
1016     vb1.pack_start(label, false, false)
1017
1018     table = Gtk::Table.new(0, 0, false)
1019     table.set_row_spacings(5)
1020     table.set_column_spacings(5)
1021     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)
1022     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)
1023     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)
1024     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)
1025     add_row = proc { |row, name, color, truthproc, normal|
1026         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)),
1027                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1028         counter = 0
1029         examples = Gtk::HBox.new(false, 5)
1030         $allentries.each { |entry|
1031             if truthproc.call(entry)
1032                 counter += 1
1033                 if counter < 4
1034                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1035                     if entry.type == 'video'
1036                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1037                                                   pack_start(thumbnail).
1038                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1039                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1040                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1041                     end
1042                     examples.pack_start(thumbnail, false, false)
1043                 elsif counter == 4
1044                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1045                 end
1046             end
1047         }
1048         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1049         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1050
1051         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1052         iter = combostore.append
1053         if normal
1054             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1055             iter[1] = utf8(_("Move to:"))
1056         else
1057             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1058             iter[1] = utf8(_("Permanently remove"))
1059         end
1060         iter = combostore.append
1061         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1062         iter[1] = utf8(_("Do nothing"))
1063         combo = Gtk::ComboBox.new(combostore)
1064         combo.active = 0
1065         renderer = Gtk::CellRendererPixbuf.new
1066         combo.pack_start(renderer, false)
1067         combo.set_attributes(renderer, :pixbuf => 0)
1068         renderer = Gtk::CellRendererText.new
1069         combo.pack_start(renderer, true)
1070         combo.set_attributes(renderer, :text => 1)
1071
1072         if normal
1073             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1074             lastpath = $workingdir
1075             pathbutton.signal_connect('clicked') {
1076                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1077                                                 nil,
1078                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1079                                                 nil,
1080                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1081                 fc.transient_for = dialog
1082                 fc.current_folder = lastpath
1083                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1084                     pathlabel.text = fc.filename
1085                 end
1086                 lastpath = fc.filename
1087                 fc.destroy
1088             }
1089             combo.signal_connect('changed') {
1090                 pathbutton.sensitive = combo.active == 0
1091             }
1092             vb = Gtk::VBox.new(false, 5)
1093             vb.pack_start(combo, false, false)
1094             vb.pack_start(pathbutton, false, false)
1095             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1096             { :combo => combo, :pathlabel => pathlabel }
1097         else
1098             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1099             { :combo => combo }
1100         end
1101     }
1102     stuff = {}
1103     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), Gdk::Color.new(65535, 0, 0), proc { |entry| entry.removed }, false)
1104     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1105     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1106
1107     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1108     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1109     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 ]))
1110     if toremove_amount > 0
1111         vb1.pack_start(check_removal, false, false)
1112         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1113             check_removal.sensitive = widget.active == 0
1114         }
1115     end
1116
1117     dialog.vbox.add(vb1)
1118
1119     dialog.set_default_size(800, 600)
1120     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1121     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1122     dialog.window_position = Gtk::Window::POS_MOUSE
1123     dialog.transient_for = $main_window
1124
1125     dialog.show_all
1126
1127     while true
1128         dialog.run { |response|        
1129             if response == Gtk::Dialog::RESPONSE_OK
1130                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1131                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1132                     break
1133                 end
1134                 problem = false
1135                 label2entries = {}
1136                 $labels.values.each { |label| label2entries[label] = [] }
1137                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1138                 stuff.keys.each { |key|
1139                     if key.is_a?(Label) && stuff[key][:combo].active == 0
1140                         destination = stuff[key][:pathlabel].text
1141                         if destination[0] != ?/
1142                             show_popup(dialog, utf8(_("You have not selected a directory where to move %s.") % key.name))
1143                             problem = true
1144                             break
1145                         end
1146                         st = File.stat(destination)
1147                         if ! st.directory? || ! st.writable?
1148                             show_popup(dialog, utf8(_("Directory where to move %s is not valid or not writable.") % key.name))
1149                             problem = true
1150                             break
1151                         end
1152                         label2entries[key].each { |entry|
1153                             begin
1154                                 File.stat(File.join(destination, File.basename(entry.path)))
1155                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in '%s'.") % [ File.basename(entry.path), destination ]))
1156                                 problem = true
1157                                 break
1158                             rescue
1159                             end
1160                         }
1161                         if problem
1162                             break
1163                         end
1164                     end
1165                 }
1166                 if ! problem
1167                     begin
1168                         moved = 0
1169                         stuff.keys.each { |key|
1170                             if key.is_a?(Label) && stuff[key][:combo].active == 0
1171                                 destination = stuff[key][:pathlabel].text
1172                                 label2entries[key].each { |entry|
1173                                     File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1174                                     moved += 1
1175                                 }
1176                             end
1177                         }
1178                         removed = 0
1179                         if stuff['toremove'][:combo].active == 0
1180                             $allentries.each { |entry|
1181                                 if entry.removed
1182                                     File.delete(entry.path)
1183                                     removed += 1
1184                                 end
1185                             }
1186                         end
1187                     rescue
1188                         msg 1, "woops: #{$!}"
1189                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1190                     end
1191                     show_popup(dialog, utf8(_("Successfully moved %d files and removed %d files.") % [ moved, removed ]))
1192                     dialog.destroy
1193                     reset_all
1194                     return
1195                 end
1196
1197             else
1198                 dialog.destroy
1199                 return
1200             end
1201         }
1202     end
1203 end
1204
1205 def preferences
1206     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1207                              $main_window,
1208                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1209                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1210                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1211
1212     tooltips = Gtk::Tooltips.new
1213     
1214     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1215     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1216                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1217     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1218                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1219     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1220
1221     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1222                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1223     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1224                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1225     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1226
1227     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1228                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1229     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1230                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1231     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1232
1233     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1234                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1235     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1236                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1237     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1238                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1239                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1240     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1241     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1242     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1243                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1244                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1245     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1246     cache_memfree_radio.signal_connect('toggled') {
1247         if cache_memfree_radio.active?
1248             cache_memfree_label.sensitive = true
1249             cache_specify_label.sensitive = false
1250         else
1251             cache_specify_label.sensitive = true
1252             cache_memfree_label.sensitive = false
1253         end
1254     }
1255     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1256     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1257         cache_memfree_spin.value = $1.to_i
1258     else
1259         cache_specify_spin.value = $config['cache-memory-use'].to_i
1260     end
1261
1262 #    tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1263 #               0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1264 #    tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1265 #    update_exif_orientation_check.active = $config['rotate-set-exif']
1266
1267     dialog.vbox.show_all
1268     dialog.run { |response|
1269         if response == Gtk::Dialog::RESPONSE_OK
1270             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1271             $config['browser'] = from_utf8(browser_entry.text)
1272             $config['preload-distance'] = preload_distance.value
1273 #            $config['rotate-set-exif'] = update_exif_orientation_check.active?
1274             if cache_memfree_radio.active?
1275                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1276             else
1277                 $config['cache-memory-use'] = cache_specify_spin.value
1278             end
1279             set_cache_memory_use_figure
1280         end
1281     }
1282     dialog.destroy
1283 end
1284
1285 def perform_undo
1286     if $undo_mb.sensitive?
1287         $redo_mb.sensitive = true
1288         if not more_undoes = UndoHandler.undo($statusbar)
1289             $undo_mb.sensitive = false
1290         end
1291     end
1292 end
1293
1294 def perform_redo
1295     if $redo_mb.sensitive?
1296         $undo_mb.sensitive = true
1297         if not more_redoes = UndoHandler.redo($statusbar)
1298             $redo_mb.sensitive = false
1299         end
1300     end
1301 end
1302
1303 def create_menubar    
1304     #- menu
1305     mb = Gtk::MenuBar.new
1306
1307     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1308     filesubmenu = Gtk::Menu.new
1309     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1310     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1311     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1312     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1313     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1314     filemenu.set_submenu(filesubmenu)
1315     mb.append(filemenu)
1316
1317     open.signal_connect('activate') { open_dir_popup }
1318     $execute.signal_connect('activate') { execute }
1319     quit.signal_connect('activate') { try_quit }
1320
1321     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1322     editsubmenu = Gtk::Menu.new
1323     editsubmenu.append($undo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1324     editsubmenu.append($redo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1325     editsubmenu.append(           Gtk::SeparatorMenuItem.new)
1326     editsubmenu.append(prefs    = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1327     editmenu.set_submenu(editsubmenu)
1328     mb.append(editmenu)
1329
1330     $undo_mb.signal_connect('activate') { perform_undo }
1331     $redo_mb.signal_connect('activate') { perform_redo }
1332     prefs.signal_connect('activate') { preferences }
1333     
1334     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1335     helpsubmenu = Gtk::Menu.new
1336     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1337     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1338     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1339     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1340     helpmenu.set_submenu(helpsubmenu)
1341     mb.append(helpmenu)
1342
1343     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1344     about.signal_connect('activate') { call_about }
1345
1346
1347     #- no toolbar, to save height
1348
1349     return mb
1350 end
1351
1352 def reset_labels
1353     for child in $labels_vbox.children
1354         $labels_vbox.remove(child)
1355     end
1356     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1357     $labels = {}
1358 end
1359
1360 def reset_thumbnails
1361     $allentries = []
1362     for child in $imagesline.children
1363         $imagesline.remove(child)
1364     end
1365 end
1366
1367 def create_main_window
1368
1369     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1370     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1371
1372     mb = create_menubar
1373
1374     main_vbox = Gtk::VBox.new(false, 0)
1375     main_vbox.pack_start(mb, false, false)
1376     mainview_hbox = Gtk::HBox.new
1377     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1378     reset_labels
1379     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1380     main_vbox.pack_start(mainview_hbox, true, true)
1381     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1382     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1383     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1384     main_vbox.pack_start($imagesline_sw, false, false)
1385     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1386
1387     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + 15)
1388
1389     $main_window = Gtk::Window.new
1390     $main_window.add(main_vbox)
1391     $main_window.signal_connect('delete-event') {
1392         try_quit({ :disallow_cancel => true })
1393     }
1394
1395     #- read/save size and position of window
1396     if $config['pos-x'] && $config['pos-y']
1397         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1398     else
1399         $main_window.window_position = Gtk::Window::POS_CENTER
1400     end
1401     msg 3, "size: #{$config['width']}x#{$config['height']}"
1402     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1403     $main_window.signal_connect('configure-event') {
1404         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1405         x, y = $main_window.window.root_origin
1406         width, height = $main_window.window.size
1407         $config['pos-x'] = x
1408         $config['pos-y'] = y
1409         $config['width'] = width
1410         $config['height'] = height
1411         false
1412     }
1413
1414     $protect_gtk_pending_calls = Mutex.new
1415     $gtk_pending_calls = []
1416     Gtk.timeout_add(50) {
1417         gtk_thread_flush
1418         true
1419     }
1420
1421     $main_window.show_all
1422 end
1423
1424
1425 handle_options
1426 Thread.abort_on_exception = true
1427 read_config
1428 Gtk.init
1429
1430
1431 create_main_window
1432 check_config
1433
1434 if ARGV[0]
1435     open_dir(ARGV[0])
1436 end
1437 Gtk.main
1438
1439 write_config