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