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[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, :button
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 $allentries = []
416
417 class MainView < Gtk::DrawingArea
418
419     @@borders_thickness = 5
420     @@borders_length = 25
421
422     def MainView.get_usable_width(available_width)
423         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
424     end
425
426     def MainView.get_usable_height(available_height)
427         return available_height - @@borders_thickness * 2
428     end
429     
430     def initialize
431         super()
432         signal_connect('expose-event') { draw }
433         signal_connect('configure-event') { update_shown; GC.start }
434         signal_connect('realize') {
435             @preloader = Thread.new {
436                 #- background preloading
437                 while true
438                     msg 3, "background main preloading triggered..."
439                     if ! @entry.nil?
440                         index = $allentries.index(@entry)
441                         w, h = window.size
442                         w = MainView.get_usable_width(w)
443                         h = MainView.get_usable_height(h)
444                         for j in 1 .. $config['preload-distance'].to_i
445                             i = index + j
446                             if i < $allentries.size
447                                 $allentries[i].pixbuf_main(w, h)
448                             end
449                             i = index - j
450                             if i >= 0
451                                 $allentries[i].pixbuf_main(w, h)
452                             end
453                             GC.start
454                             mem = get_mem
455                             if mem > $config['cache-memory-use-figure']
456                                 msg 3, "too much RSS, stopping main preloading"
457                                 break
458                             end
459                         end
460                         check_memory_free_cache_if_needed
461                     end
462                     Thread.stop
463                 end
464             }
465             @preloader.priority = -2
466         }
467     end
468
469     def set_shown_entry(entry)
470         if ! entry.nil? && entry == @entry
471             return
472         end
473         if ! entry.nil?
474             if ! entry.button
475                 #- not loaded yet
476                 return
477             else
478                 entry.button.grab_focus
479             end
480         end
481         @entry = entry
482         redraw        
483         @preloader.run
484     end
485
486     def get_shown_entry
487         return @entry
488     end
489
490     def show_next_entry(entry)
491         index = $allentries.index(entry) + 1
492         if index < $allentries.size
493             set_shown_entry($allentries[index])
494         end
495     end
496
497     def redraw
498         update_shown
499         w, h = window.size
500         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
501         window.clear
502         draw
503         window.end_paint
504     end
505
506     def update_shown
507         if @entry
508             width, height = window.size 
509             usable_width = MainView.get_usable_width(width)
510             usable_height = MainView.get_usable_height(height)
511             @pixbuf = @entry.pixbuf_main(usable_width, usable_height)
512             @xpos = (width - @pixbuf.width)/2
513             @ypos = (height - @pixbuf.height)/2
514             @preloader.run
515         else
516             @pixbuf = nil
517         end
518     end
519
520     def draw
521         if @pixbuf
522             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
523             if @entry && @entry.type == 'video'
524                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
525             end
526             if ! @entry.outline_color.nil?
527                 gc = Gdk::GC.new(window)
528                 colormap.alloc_color(@entry.outline_color, false, true)
529                 gc.set_foreground(@entry.outline_color)
530                 if @entry && @entry.type == 'video'
531                     xleft = @xpos - $videoborder_pixbuf.width
532                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
533                 else
534                     xleft = @xpos
535                     xright = @xpos + @pixbuf.width
536                 end
537                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
538                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
539                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
540                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
541                                                [xleft - @@borders_thickness, @ypos - 1],
542                                                [xleft - 1, @ypos - 1],
543                                                [xleft - 1, @ypos + @pixbuf.height + 1],
544                                                [xright + 1, @ypos + @pixbuf.height + 1],
545                                                [xright + 1, @ypos - 1],
546                                                [xleft - @@borders_thickness, @ypos - 1]])
547             end
548         end
549     end
550 end
551
552 def check_memory_free_cache_if_needed
553     GC.start
554     mem = get_mem
555     i = $allentries.index($mainview.get_shown_entry)
556     msg 3, "mem: #{mem} index: #{i}"
557     return if i.nil?
558     ($allentries.size - 1).downto(1) { |j|
559         if mem < $config['cache-memory-use-figure'] * 2 / 3
560             break
561         end
562         index = i + j
563         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
564         freedsomething = false
565         if i + j < $allentries.size
566             freedsomething |= $allentries[i+j].free_pixbuf_full
567         end
568         if i - j > 0
569             freedsomething |= $allentries[i-j].free_pixbuf_full
570         end
571         if freedsomething
572             GC.start
573             mem = get_mem
574             msg 3, "\tmem now: #{mem}"
575         end
576     }
577 end
578
579 def autoscroll_if_needed(button)
580     xpos_left = button.allocation.x
581     xpos_right = button.allocation.x + button.allocation.width
582     hadj = $imagesline_sw.hadjustment
583     current_minx_visible = hadj.value
584     current_maxx_visible = hadj.value + hadj.page_size
585     if xpos_left < current_minx_visible
586         #- autoscroll left
587         newval = hadj.value - (current_minx_visible - xpos_left)
588         hadj.value = newval
589         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
590     elsif xpos_right > current_maxx_visible
591         #- autoscroll right
592         newval = hadj.value + (xpos_right - current_maxx_visible)
593         if newval > hadj.upper - hadj.page_size
594             newval = hadj.upper - hadj.page_size
595         end
596         hadj.value = newval
597         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
598     end
599 end
600
601 def show_popup(parent, msg, *options)
602     dialog = Gtk::Dialog.new
603     if options[0]
604         options = options[0]
605     else
606         options = {}
607     end
608     if options[:title]
609         dialog.title = options[:title]
610     else
611         dialog.title = utf8(_("Booh message"))
612     end
613     lbl = Gtk::Label.new
614     if options[:nomarkup]
615         lbl.text = msg
616     else
617         lbl.markup = msg
618     end
619     if options[:centered]
620         lbl.set_justify(Gtk::Justification::CENTER)
621     end
622     if options[:selectable]
623         lbl.selectable = true
624     end
625     if options[:topwidget]
626         dialog.vbox.add(options[0][:topwidget])
627     end
628     if options[:scrolled]
629         sw = Gtk::ScrolledWindow.new(nil, nil)
630         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
631         sw.add_with_viewport(lbl)
632         dialog.vbox.add(sw)
633         dialog.set_default_size(500, 600)
634     else
635         dialog.vbox.add(lbl)
636         dialog.set_default_size(200, 120)
637     end
638     if options[:bottomwidget]
639         dialog.vbox.add(options[:bottomwidget])
640     end
641     if options[:okcancel]
642         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
643     end
644     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
645
646     if options[:pos_centered]
647         dialog.window_position = Gtk::Window::POS_CENTER
648     else
649         dialog.window_position = Gtk::Window::POS_MOUSE
650     end
651
652     if options[:linkurl]
653         linkbut = Gtk::Button.new('')
654         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
655         linkbut.signal_connect('clicked') {
656             open_url(options[0][:linkurl] + '/index.html')
657             dialog.response(Gtk::Dialog::RESPONSE_OK)
658             set_mousecursor_normal
659         }
660         linkbut.relief = Gtk::RELIEF_NONE
661         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
662         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
663         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
664     end
665
666     dialog.show_all
667
668     if options[:stuff_connector]
669         options[:stuff_connector].call({ :dialog => dialog })
670     end
671                                         
672     if !options[:not_transient]
673         dialog.transient_for = parent
674         dialog.run { |response|
675             if options[:data_getter]
676                 options[:data_getter].call
677             end
678             dialog.destroy
679             if options[:okcancel]
680                 return response == Gtk::Dialog::RESPONSE_OK
681             end
682         }
683     else
684         dialog.signal_connect('response') { dialog.destroy }
685     end
686 end
687
688 def video_view(entry)
689     cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
690     msg 2, cmd
691     system(cmd)
692 end
693
694 def thumbnail_keypressed(entry, event)
695     if event.state & Gdk::Window::MOD1_MASK != 0
696         #- ALT pressed: Alt-Left and Alft-Right rotate
697         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
698             if event.keyval == Gdk::Keyval::GDK_Left
699                 entry.angle = (entry.angle - 90) % 360
700             else
701                 entry.angle = (entry.angle + 90) % 360
702             end
703             entry.free_pixbuf_full
704             entry.free_pixbuf_main
705             entry.free_pixbuf_thumbnail
706             $mainview.redraw
707             entry.image.pixbuf = entry.pixbuf_thumbnail
708         end
709
710     elsif event.state & Gdk::Window::CONTROL_MASK != 0
711         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
712         if event.keyval == Gdk::Keyval::GDK_z
713             perform_undo
714         end
715         if event.keyval == Gdk::Keyval::GDK_r
716             perform_redo
717         end
718
719     else
720         removed_before = entry.removed
721         label_before = entry.labeled
722
723         if event.keyval == Gdk::Keyval::GDK_Delete
724             entry.removed = true
725             entry.labeled = nil
726             entry.show_bg
727             $mainview.show_next_entry(entry)
728             update_visibility(entry)
729
730             save_undo(_("set for removal"),
731                       proc {
732                           entry.removed = removed_before
733                           entry.labeled = label_before
734                           entry.show_bg
735                           update_visibility(entry)
736                           if entry.button.visible?
737                               $mainview.set_shown_entry(entry)
738                           end
739                           proc {
740                               entry.removed = true
741                               entry.labeled = nil
742                               entry.show_bg
743                               update_visibility(entry)
744                               if entry.button.visible?
745                                   $mainview.set_shown_entry(entry)
746                               end
747                           }
748                       })
749
750         elsif event.keyval == Gdk::Keyval::GDK_space
751             if entry.labeled
752                 msg = _("Cleared label")
753             elsif entry.removed
754                 msg = _("Cleared set for removal")
755             end
756             entry.removed = false
757             entry.labeled = nil
758             entry.show_bg
759             $mainview.show_next_entry(entry)
760
761             save_undo(msg,
762                       proc {
763                           entry.removed = removed_before
764                           entry.labeled = label_before
765                           entry.show_bg
766                           $mainview.set_shown_entry(entry)
767                           proc {
768                               entry.removed = false
769                               entry.labeled = nil
770                               entry.show_bg
771                               $mainview.set_shown_entry(entry)
772                           }
773                       })
774
775         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
776             video_view(entry)
777
778         else
779             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
780             if char =~ /^[a-zA-z0-9]$/
781                 label = $labels[char]
782                 
783                 if label.nil?
784                     vb = Gtk::VBox.new(false, 0)
785                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
786                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
787                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
788                     bt.signal_connect('color-set') { color = bt.color }
789                     text = nil
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(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
808                             label.button.active = true
809                             label.button.signal_connect('toggled') { update_all_visibilities }
810                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
811                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
812                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
813                         end
814                     end
815
816                 else
817                     entry.removed = false
818                     entry.labeled = label
819                     entry.show_bg
820                     $mainview.show_next_entry(entry)
821                     update_visibility(entry)
822
823                     save_undo(_("set label"),
824                               proc {
825                                   entry.removed = removed_before
826                                   entry.labeled = label_before
827                                   entry.show_bg
828                                   update_visibility(entry)
829                                   if entry.button.visible?
830                                       $mainview.set_shown_entry(entry)
831                                   end
832                                   proc {
833                                       entry.removed = false
834                                       entry.labeled = label
835                                       entry.show_bg
836                                       update_visibility(entry)
837                                       if entry.button.visible?
838                                           $mainview.set_shown_entry(entry)
839                                       end
840                                   }
841                               })
842                 end
843             end
844         end
845     end
846 end
847
848 def sb_msg(msg)
849     $statusbar.pop(0)
850     if msg
851         $statusbar.push(0, utf8(msg))
852     end
853 end
854
855 def real_show_entry(entry, tooltips, grab_focus)
856     #- for scoping the actual reference to 'entry'
857     gtk_thread_protect(proc {
858         msg 3, "using entry #{entry}"
859         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
860         if entry.type == 'video'
861             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
862                                                              pack_start(entry.image).
863                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
864             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
865             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
866         else
867             entry.button = Gtk::Button.new.set_image(entry.image)
868         end
869         tooltips.set_tip(entry.button, entry.get_beautified_name, nil)
870         $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
871         entry.button.signal_connect('clicked') {
872             if (last_shown = $mainview.get_shown_entry) != entry
873                 $mainview.set_shown_entry(entry)
874                 entry.alignment.set(0.5, 0, 0, 0)
875                 sb_msg(_("Selected %s") % entry.get_beautified_name)
876                 last_shown.nil? or last_shown.alignment.set(0.5, 1, 0, 0)
877             end
878         }
879         entry.button.signal_connect('button-press-event') { |w, event|
880             if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
881                 video_view(entry)
882             end
883         }
884         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
885         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
886         if grab_focus
887             entry.button.grab_focus
888         end
889         update_visibility(entry)
890     })
891 end
892
893 def show_entries
894     $images_loader = Thread.new {
895         t1 = Time.now
896         sb_msg(_("Loading images..."))
897         tooltips = Gtk::Tooltips.new
898         counter = 0
899         toremove = []
900         grab_focus = true
901         i = 0
902         total_size = 0
903         while i < $allentries.size
904             entry = $allentries[i]
905             if entry.pixbuf_full
906                 total_size += file_size(entry.path)
907                 entry.pixbuf_thumbnail
908                 real_show_entry(entry, tooltips, grab_focus)
909                 grab_focus = false
910                 if i % 4 == 0
911                     check_memory_free_cache_if_needed
912                 end
913                 counter += 1
914                 i = i + 1
915
916             else
917                 $allentries.delete_at(i)
918             end
919         end
920         check_memory_free_cache_if_needed
921         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
922     }
923     $images_loader.priority = -1
924 end
925
926 def reset_all
927     $images_loader and $images_loader.kill
928     reset_labels
929     reset_thumbnails
930     $mainview.set_shown_entry(nil)
931     sb_msg(nil)
932 end
933
934 def open_dir(path)
935     #- remove visual stuff, so that user will see something is happening
936     reset_all
937     sb_msg(_("Scanning source directory..."))
938
939     path = File.expand_path(path.sub(%r|/$|, ''))
940     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
941     #- validate first
942     examined_dirs.each { |dir|
943         if dir =~ /'/
944             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
945         end
946         Dir.entries(dir).each { |file|
947             if file =~ /['"\[\]]/
948                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
949             end
950         }
951     }
952
953     #- scan for populate second
954     examined_dirs.each { |dir|
955         if File.basename(dir) =~ /^\./
956             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
957             next
958         end
959         Dir.entries(dir).sort.each { |file|
960             type = entry2type(file)
961             if type
962                 $allentries << Entry.new(File.join(dir, file), type)
963             end
964         }
965     }
966     $workingdir = path
967     show_entries
968     $execute.sensitive = true
969     return nil
970 end
971
972 def open_dir_popup
973     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
974                                     nil,
975                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
976                                     nil,
977                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
978     fc.transient_for = $main_window
979     if $workingdir
980         fc.current_folder = $workingdir
981     end
982     ok = false
983     while !ok
984         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
985             msg = open_dir(fc.filename)
986             if msg
987                 show_popup(fc, msg)
988                 ok = false
989             else
990                 ok = true
991             end
992         else
993             ok = true
994         end
995     end
996     fc.destroy
997 end
998
999 def gtk_thread_protect(proc, *params)
1000     if Thread.current == Thread.main
1001         proc.call(*params)
1002     else
1003         $protect_gtk_pending_calls.synchronize {
1004             $gtk_pending_calls << [ proc, params ]
1005         }
1006     end
1007 end
1008
1009 def gtk_thread_flush
1010     $protect_gtk_pending_calls.synchronize {
1011         if $gtk_pending_calls.size > 0
1012             elem = $gtk_pending_calls.shift
1013             elem[0].call(*elem[1])
1014         end
1015     }
1016 end
1017
1018 def try_quit(*options)
1019     Gtk.main_quit
1020 end
1021
1022 def execute
1023     dialog = Gtk::Dialog.new
1024     dialog.title = utf8(_("Booh message"))
1025
1026     vb1 = Gtk::VBox.new(false, 5)
1027     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!")))
1028     vb1.pack_start(label, false, false)
1029
1030     table = Gtk::Table.new(0, 0, false)
1031     table.set_row_spacings(5)
1032     table.set_column_spacings(5)
1033     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)
1034     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)
1035     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)
1036     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)
1037     add_row = proc { |row, name, color, truthproc, normal|
1038         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)),
1039                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1040         counter = 0
1041         examples = Gtk::HBox.new(false, 5)
1042         $allentries.each { |entry|
1043             if truthproc.call(entry)
1044                 counter += 1
1045                 if counter < 4
1046                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1047                     if entry.type == 'video'
1048                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1049                                                   pack_start(thumbnail).
1050                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1051                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1052                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1053                     end
1054                     examples.pack_start(thumbnail, false, false)
1055                 elsif counter == 4
1056                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1057                 end
1058             end
1059         }
1060         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1061         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1062
1063         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1064         iter = combostore.append
1065         if normal
1066             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1067             iter[1] = utf8(_("Move to:"))
1068             iter = combostore.append
1069             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1070             iter[1] = utf8(_("Copy to:"))
1071         else
1072             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1073             iter[1] = utf8(_("Permanently remove"))
1074         end
1075         iter = combostore.append
1076         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1077         iter[1] = utf8(_("Do nothing"))
1078         combo = Gtk::ComboBox.new(combostore)
1079         combo.active = 0
1080         renderer = Gtk::CellRendererPixbuf.new
1081         combo.pack_start(renderer, false)
1082         combo.set_attributes(renderer, :pixbuf => 0)
1083         renderer = Gtk::CellRendererText.new
1084         combo.pack_start(renderer, true)
1085         combo.set_attributes(renderer, :text => 1)
1086
1087         if normal
1088             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1089             lastpath = $workingdir
1090             pathbutton.signal_connect('clicked') {
1091                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1092                                                 nil,
1093                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1094                                                 nil,
1095                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1096                 fc.transient_for = dialog
1097                 fc.current_folder = lastpath
1098                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1099                     pathlabel.text = fc.filename
1100                 end
1101                 lastpath = fc.filename
1102                 fc.destroy
1103             }
1104             combo.signal_connect('changed') {
1105                 pathbutton.sensitive = combo.active <= 1
1106             }
1107             vb = Gtk::VBox.new(false, 5)
1108             vb.pack_start(combo, false, false)
1109             vb.pack_start(pathbutton, false, false)
1110             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1111             { :combo => combo, :pathlabel => pathlabel }
1112         else
1113             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1114             { :combo => combo }
1115         end
1116     }
1117     stuff = {}
1118     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1119     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1120     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1121
1122     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1123     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1124     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 ]))
1125     if toremove_amount > 0
1126         vb1.pack_start(check_removal, false, false)
1127         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1128             check_removal.sensitive = widget.active == 0
1129         }
1130     end
1131
1132     dialog.vbox.add(vb1)
1133
1134     dialog.set_default_size(800, 600)
1135     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1136     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1137     dialog.window_position = Gtk::Window::POS_MOUSE
1138     dialog.transient_for = $main_window
1139
1140     dialog.show_all
1141
1142     while true
1143         dialog.run { |response|        
1144             if response == Gtk::Dialog::RESPONSE_OK
1145                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1146                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1147                     break
1148                 end
1149                 problem = false
1150                 label2entries = {}
1151                 $labels.values.each { |label| label2entries[label] = [] }
1152                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1153                 stuff.keys.each { |key|
1154                     if key.is_a?(Label) && stuff[key][:combo].active <= 1
1155                         destination = stuff[key][:pathlabel].text
1156                         if destination[0] != ?/
1157                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1158                             problem = true
1159                             break
1160                         end
1161                         begin
1162                             Dir.mkdir(destination)
1163                         rescue Errno::EEXIST
1164                         end
1165                         begin
1166                             st = File.stat(destination)
1167                         rescue
1168                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1169                             problem = true
1170                             break
1171                         end
1172                         if ! st.directory? || ! st.writable?
1173                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1174                             problem = true
1175                             break
1176                         end
1177                         label2entries[key].each { |entry|
1178                             begin
1179                                 File.stat(File.join(destination, File.basename(entry.path)))
1180                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1181                                 problem = true
1182                                 break
1183                             rescue
1184                             end
1185                         }
1186                         if problem
1187                             break
1188                         end
1189                     end
1190                 }
1191                 if ! problem
1192                     begin
1193                         moved = 0
1194                         copied = 0
1195                         stuff.keys.each { |key|
1196                             if key.is_a?(Label) && stuff[key][:combo].active <= 1
1197                                 destination = stuff[key][:pathlabel].text
1198                                 label2entries[key].each { |entry|
1199                                     if stuff[key][:combo].active == 0
1200                                         File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1201                                         moved += 1
1202                                     elsif stuff[key][:combo].active == 1
1203                                         system("cp -dp '#{entry.path}' '#{destination}'")
1204                                         copied += 1
1205                                     end
1206                                 }
1207                             end
1208                         }
1209                         removed = 0
1210                         if stuff['toremove'][:combo].active == 0
1211                             $allentries.each { |entry|
1212                                 if entry.removed
1213                                     File.delete(entry.path)
1214                                     removed += 1
1215                                 end
1216                             }
1217                         end
1218                     rescue
1219                         msg 1, "woops: #{$!}"
1220                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1221                     end
1222                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1223                     dialog.destroy
1224                     reset_all
1225                     return
1226                 end
1227
1228             else
1229                 dialog.destroy
1230                 return
1231             end
1232         }
1233     end
1234 end
1235
1236 def update_visibility(entry)
1237     if ! entry.button
1238         #- not yet loaded
1239         return
1240     end
1241     if entry.labeled
1242         if entry.labeled.button.active?
1243             entry.button.show
1244         else
1245             entry.button.hide
1246         end
1247     elsif entry.removed
1248         if $toremove_button.active?
1249             entry.button.show
1250         else
1251             entry.button.hide
1252         end
1253     else
1254         if $unlabelled_button.active?
1255             entry.button.show
1256         else
1257             entry.button.hide
1258         end
1259     end
1260 end
1261         
1262 def update_all_visibilities
1263     $allentries.each { |entry|
1264         update_visibility(entry)
1265     }
1266     shown = $mainview.get_shown_entry
1267     if shown.nil?
1268         return
1269     end
1270     while shown.button && ! shown.button.visible? && shown != $allentries.last
1271         shown = $allentries[$allentries.index(shown) + 1]
1272     end 
1273     if shown.button && shown.button.visible?
1274         shown.button.grab_focus
1275         return
1276     end
1277     $allentries.reverse.each { |entry|
1278         if entry.button && entry.button.visible?
1279             entry.button.grab_focus
1280             return
1281         end
1282     }
1283 end
1284
1285 def preferences
1286     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1287                              $main_window,
1288                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1289                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1290                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1291
1292     tooltips = Gtk::Tooltips.new
1293     
1294     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1295     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1296                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1297     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1298                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1299     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1300
1301     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1302                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1303     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1304                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1305     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1306
1307     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1308                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1309     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1310                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1311     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1312
1313     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1314                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1315     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1316                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1317     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1318                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1319                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1320     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1321     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1322     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1323                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1324                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1325     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1326     cache_memfree_radio.signal_connect('toggled') {
1327         if cache_memfree_radio.active?
1328             cache_memfree_label.sensitive = true
1329             cache_specify_label.sensitive = false
1330         else
1331             cache_specify_label.sensitive = true
1332             cache_memfree_label.sensitive = false
1333         end
1334     }
1335     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1336     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1337         cache_memfree_spin.value = $1.to_i
1338     else
1339         cache_specify_spin.value = $config['cache-memory-use'].to_i
1340     end
1341
1342 #    tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1343 #               0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1344 #    tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1345 #    update_exif_orientation_check.active = $config['rotate-set-exif']
1346
1347     dialog.vbox.show_all
1348     dialog.run { |response|
1349         if response == Gtk::Dialog::RESPONSE_OK
1350             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1351             $config['browser'] = from_utf8(browser_entry.text)
1352             $config['preload-distance'] = preload_distance.value
1353 #            $config['rotate-set-exif'] = update_exif_orientation_check.active?
1354             if cache_memfree_radio.active?
1355                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1356             else
1357                 $config['cache-memory-use'] = cache_specify_spin.value
1358             end
1359             set_cache_memory_use_figure
1360         end
1361     }
1362     dialog.destroy
1363 end
1364
1365 def perform_undo
1366     if $undo_mb.sensitive?
1367         $redo_mb.sensitive = true
1368         if not more_undoes = UndoHandler.undo($statusbar)
1369             $undo_mb.sensitive = false
1370         end
1371     end
1372 end
1373
1374 def perform_redo
1375     if $redo_mb.sensitive?
1376         $undo_mb.sensitive = true
1377         if not more_redoes = UndoHandler.redo($statusbar)
1378             $redo_mb.sensitive = false
1379         end
1380     end
1381 end
1382
1383 def create_menubar    
1384     #- menu
1385     mb = Gtk::MenuBar.new
1386
1387     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1388     filesubmenu = Gtk::Menu.new
1389     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1390     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1391     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1392     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1393     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1394     filemenu.set_submenu(filesubmenu)
1395     mb.append(filemenu)
1396
1397     open.signal_connect('activate') { open_dir_popup }
1398     $execute.signal_connect('activate') { execute }
1399     quit.signal_connect('activate') { try_quit }
1400
1401     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1402     editsubmenu = Gtk::Menu.new
1403     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1404     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1405     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1406     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1407     editmenu.set_submenu(editsubmenu)
1408     mb.append(editmenu)
1409
1410     $undo_mb.signal_connect('activate') { perform_undo }
1411     $redo_mb.signal_connect('activate') { perform_redo }
1412     prefs.signal_connect('activate') { preferences }
1413     
1414     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1415     helpsubmenu = Gtk::Menu.new
1416     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1417     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1418     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1419     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1420     helpmenu.set_submenu(helpsubmenu)
1421     mb.append(helpmenu)
1422
1423     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1424     about.signal_connect('activate') { call_about }
1425
1426
1427     #- no toolbar, to save height
1428
1429     return mb
1430 end
1431
1432 def reset_labels
1433     for child in $labels_vbox.children
1434         $labels_vbox.remove(child)
1435     end
1436     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1437     $labels = {}
1438     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1439     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1440     $unlabelled_button.active = true
1441     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1442     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1443     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1444     $toremove_button.active = true
1445     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1446     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1447     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1448     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1449 end
1450
1451 def reset_thumbnails
1452     $allentries = []
1453     for child in $imagesline.children
1454         $imagesline.remove(child)
1455     end
1456 end
1457
1458 def create_main_window
1459
1460     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1461     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1462
1463     mb = create_menubar
1464
1465     main_vbox = Gtk::VBox.new(false, 0)
1466     main_vbox.pack_start(mb, false, false)
1467     mainview_hbox = Gtk::HBox.new
1468     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1469     reset_labels
1470     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1471     main_vbox.pack_start(mainview_hbox, true, true)
1472     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1473     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1474     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1475     main_vbox.pack_start($imagesline_sw, false, false)
1476     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1477
1478     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + 15)
1479
1480     $main_window = Gtk::Window.new
1481     $main_window.add(main_vbox)
1482     $main_window.signal_connect('delete-event') {
1483         try_quit({ :disallow_cancel => true })
1484     }
1485
1486     #- read/save size and position of window
1487     if $config['pos-x'] && $config['pos-y']
1488         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1489     else
1490         $main_window.window_position = Gtk::Window::POS_CENTER
1491     end
1492     msg 3, "size: #{$config['width']}x#{$config['height']}"
1493     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1494     $main_window.signal_connect('configure-event') {
1495         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1496         x, y = $main_window.window.root_origin
1497         width, height = $main_window.window.size
1498         $config['pos-x'] = x
1499         $config['pos-y'] = y
1500         $config['width'] = width
1501         $config['height'] = height
1502         false
1503     }
1504
1505     $protect_gtk_pending_calls = Mutex.new
1506     $gtk_pending_calls = []
1507     Gtk.timeout_add(50) {
1508         gtk_thread_flush
1509         true
1510     }
1511
1512     $main_window.show_all
1513 end
1514
1515
1516 handle_options
1517 Thread.abort_on_exception = true
1518 read_config
1519 Gtk.init
1520
1521
1522 create_main_window
1523 check_config
1524
1525 if ARGV[0]
1526     open_dir(ARGV[0])
1527 end
1528 Gtk.main
1529
1530 write_config