c7c6efe594f9d18bc3eae4253834cd20248b7615
[booh] / bin / booh-classifier
1 #! /usr/bin/ruby
2 #
3 #                         *  BOOH  *
4 #
5 # A.k.a 'Best web-album Of the world, Or your money back, Humerus'.
6 #
7 # The acronyn sucks, however this is a tribute to Dragon Ball by
8 # Akira Toriyama, where the last enemy beaten by heroes of Dragon
9 # Ball is named "Boo". But there was already a free software project
10 # called Boo, so this one will be it "Booh". Or whatever.
11 #
12 #
13 # Copyright (c) 2004-2006 Guillaume Cottenceau <http://zarb.org/~gc/resource/gc_mail.png>
14 #
15 # This software may be freely redistributed under the terms of the GNU
16 # public license version 2.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
22 require 'getoptlong'
23 require 'tempfile'
24 require 'thread'
25
26 require 'gtk2'
27
28 require 'gettext'
29 include GetText
30 bindtextdomain("booh")
31
32 require 'rexml/document'
33 include REXML
34
35 require 'booh/booh-lib'
36 include Booh
37 require 'booh/UndoHandler'
38
39
40 #- options
41 $options = [
42     [ '--help',          '-h', GetoptLong::NO_ARGUMENT,       _("Get help message") ],
43
44     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
45 ]
46
47 def usage
48     puts _("Usage: %s [OPTION]...") % File.basename($0)
49     $options.each { |ary|
50         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
51     }
52 end
53
54 def handle_options
55     parser = GetoptLong.new
56     parser.set_options(*$options.collect { |ary| ary[0..2] })
57     begin
58         parser.each_option do |name, arg|
59             case name
60             when '--help'
61                 usage
62                 exit(0)
63
64             when '--verbose-level'
65                 $verbose_level = arg.to_i
66
67             end
68         end
69     rescue
70         puts $!
71         usage
72         exit(1)
73     end
74 end
75
76 def memfree
77     meminfo = IO.readlines('/proc/meminfo').join
78     meminfo =~ /MemFree:.*?(\d+)/ or return -1
79     memfree = $1
80     meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
81     meminfo =~ /Cached:.*?(\d+)/ and cached = $1
82     return memfree.to_i + buffers.to_i + cached.to_i
83 end
84
85 def set_cache_memory_use_figure
86     if $config['cache-memory-use'] =~ /memfree_(\d+)/
87         $config['cache-memory-use-figure'] = memfree*$1.to_f/100
88     else
89         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
90     end
91     msg 2, "Cache memory used: #{$config['cache-memory-use-figure']} kB"
92 end
93
94 def read_config
95     $config = {}
96     $config_file = File.expand_path('~/.booh-classifier-rc')
97     if File.readable?($config_file)
98         $xmldoc = REXML::Document.new(File.new($config_file))
99         $xmldoc.root.elements.each { |element|
100             txt = element.get_text
101             if txt
102                 if txt.value =~ /~~~/
103                     $config[element.name] = txt.value.split(/~~~/)
104                 else
105                     $config[element.name] = txt.value
106                 end
107             elsif element.elements.size == 0
108                 $config[element.name] = ''
109             else
110                 $config[element.name] = {}
111                 element.each { |chld|
112                     txt = chld.get_text
113                     $config[element.name][chld.name] = txt ? txt.value : nil
114                 }
115             end
116         }
117     end
118     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
119     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
120     $config['preload-distance'] ||= '5'
121     $config['cache-memory-use'] ||= 'memfree_50%'
122     $config['rotate-set-exif'] ||= 'true'
123     set_cache_memory_use_figure
124 end
125
126 def check_config
127     missing = %w(transcode mencoder).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
128     if missing != []
129         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
130     end
131
132     viewer_binary = $config['video-viewer'].split.first
133     if viewer_binary && ! File.executable?(viewer_binary)
134         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
135 You should fix this in Edit/Preferences so that you can view videos.
136
137 Problem was: '%s' is not an executable file.
138 Hint: don't forget to specify the full path to the executable,
139 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
140     end
141     browser_binary = $config['browser'].split.first
142     if browser_binary && ! File.executable?(browser_binary)
143         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
144 You should fix this in Edit/Preferences so that you can open URLs.
145
146 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
147     end
148 end
149
150 def write_config
151     ios = File.open($config_file, "w")
152     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
153     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
154     $config.each_pair { |key, value|
155         elem = $xmldoc.root.add_element key
156         if value.is_a? Hash
157             $config[key].each_pair { |subkey, subvalue|
158                 subelem = elem.add_element subkey
159                 subelem.add_text subvalue.to_s
160             }
161         elsif value.is_a? Array
162             elem.add_text value.join('~~~')
163         else
164             if !value
165                 elem.remove
166             else
167                 elem.add_text value.to_s
168             end
169         end
170     }
171     $xmldoc.write(ios, 0)
172     ios.close
173 end
174
175 def save_undo(name, closure, *params)
176     UndoHandler.save_undo(name, closure, [ *params ])
177     $undo_mb.sensitive = true
178     $redo_mb.sensitive = false
179 end
180
181 def get_mem
182     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
183     msg 3, "RSS: #{$1}"
184     return $1.to_i
185 end
186
187 def show_mem(*txt)
188     txt.length > 0 and print txt[0]
189     msg 2, "RSS: #{get_mem}"
190 end
191
192 class Gdk::Color
193     def darker
194         color = dup
195         color.red = [ color.red - 10000, 0 ].max
196         color.green = [ color.green - 10000, 0 ].max
197         color.blue = [ color.blue - 10000, 0 ].max
198         return color
199     end
200     def lighter
201         color = dup
202         color.red = [ color.red + 10000, 65535 ].min
203         color.green = [ color.green + 10000, 65535 ].min
204         color.blue = [ color.blue + 10000, 65535 ].min
205         return color
206     end
207 end
208
209 $colors = [ Gdk::Color.new(0, 65535, 0),
210             Gdk::Color.new(0, 0, 65535),
211             Gdk::Color.new(65535, 65535, 0),
212             Gdk::Color.new(0, 65535, 65535),
213             Gdk::Color.new(65535, 0, 65535) ]
214
215 class Label
216     attr_accessor :color, :name
217     def initialize(name)
218         @name = name
219     end
220 end
221
222 class Entry
223     @@thumbnails_height = 64
224     @@max_height = nil
225     def Entry.thumbnails_height
226         return @@thumbnails_height
227     end
228
229     attr_accessor :path, :type, :angle, :button, :image, :removed, :labeled
230
231     def initialize(path, type)
232         @path = path
233         @type = type
234         if @@max_height.nil?
235             @@max_height = $main_window.root_window.size[1]
236         end
237         @protect_cleanup = Mutex.new
238     end
239
240     def pixbuf_full
241         @protect_cleanup.synchronize {
242             if @pixbuf_full.nil?
243                 msg 3, ">>> pixbuf_full #{path}"
244                 load_into_pixbuf_full
245             end
246             return @pixbuf_full
247         }
248     end
249     def free_pixbuf_full
250         @protect_cleanup.synchronize {
251             if @pixbuf_full.nil?
252                 return false
253             else
254                 msg 3, ">>> free_pixbuf_full #{path}"
255                 @pixbuf_full = nil
256                 return true
257             end
258         }
259     end
260     def pixbuf_main(width, height)
261         @protect_cleanup.synchronize {
262             if @pixbuf_main.nil? || width != @width || height != @height
263                 msg 3, ">>> pixbuf_main #{path}"
264                 @width = width
265                 @height = height
266                 load_into_pixbuf_full  #- make sure it is loaded
267                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
268                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
269                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
270                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
271                     else
272                         @pixbuf_main = @pixbuf_full
273                     end
274                 else
275                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
276                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
277                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
278                     else
279                         @pixbuf_main = @pixbuf_full
280                     end
281                 end
282             end
283             return @pixbuf_main
284         }
285     end
286     def free_pixbuf_main
287         @protect_cleanup.synchronize {
288             if @pixbuf_main.nil?
289                 return false
290             else
291                 msg 3, ">>> free_pixbuf_main #{path}"
292                 @pixbuf_main = nil
293                 return true
294             end
295         }
296     end
297     def pixbuf_thumbnail
298         return @protect_cleanup.synchronize {
299             if @pixbuf_thumbnail.nil?
300                 msg 3, ">>> pixbuf_thumbnail #{path}"
301                 load_into_pixbuf_full  #- make sure it is loaded
302                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
303             end
304             return @pixbuf_thumbnail
305         }
306     end
307     def free_pixbuf_thumbnail
308         @protect_cleanup.synchronize {
309             if @pixbuf_thumbnail.nil?
310                 return false
311             else
312                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
313                 @pixbuf_thumbnail = nil
314                 return true
315             end
316         }
317     end
318
319     def show_bg
320         if removed
321             red = Gdk::Color.new(65535, 0, 0)
322             button.modify_bg(Gtk::StateType::NORMAL, red)
323             button.modify_bg(Gtk::StateType::PRELIGHT, red.lighter)
324             button.modify_bg(Gtk::StateType::ACTIVE, red)
325         elsif labeled
326             button.modify_bg(Gtk::StateType::NORMAL, labeled.color)
327             button.modify_bg(Gtk::StateType::PRELIGHT, labeled.color.lighter)
328             button.modify_bg(Gtk::StateType::ACTIVE, labeled.color)
329         else
330             # TODO need to add proper undo support :/
331             white = Gdk::Color.new(55535, 55535, 55535)
332             button.modify_bg(Gtk::StateType::NORMAL, white)
333             button.modify_bg(Gtk::StateType::PRELIGHT, white.lighter)
334             button.modify_bg(Gtk::StateType::ACTIVE, white)
335         end
336     end
337
338     private
339     def cleanup_dir(dir)
340         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
341         Dir.delete(dir)
342     end
343
344     def load_into_pixbuf_full
345         if @pixbuf_full.nil?
346             msg 3, ">>> load_into_pixbuf_full #{path}"
347             if type == 'video'
348                 tmp = Tempfile.new("boohclassifiertemp")
349                 tmp.close!
350                 Dir.mkdir(dest_dir = tmp.path)
351                 orig_base = File.basename(path)
352                 if ! gen_video_thumbnail(path, dest_dir, orig_base, false, 0)
353                     cleanup_dir(dest_dir)
354                     return
355                 end
356                 image_path = "#{dest_dir}/#{orig_base}.jpg000000.jpg"
357             else
358                 image_path = @path
359             end
360             begin
361                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
362             rescue Gdk::PixbufError
363                 msg 0, "Cannot load #{image_path}: #{$!}"
364                 return
365             end
366             if @pixbuf_full
367                 if @angle.nil?
368                     if type == 'image'
369                         @angle = guess_rotate(image_path)
370                     else
371                         @angle = 0
372                     end
373                 end
374                 if @angle != 0
375                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
376                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
377                 end
378                 if @pixbuf_full.height > @@max_height
379                     #- save a lot of memory, don't store in actual full size
380                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
381                 end
382             end
383             if type == 'video'
384                 cleanup_dir(dest_dir)
385             end
386         end
387     end
388
389     def to_s
390         @path
391     end
392 end
393
394 class MainView < Gtk::DrawingArea
395
396     def initialize
397         super()
398         signal_connect('expose-event') { draw }
399         signal_connect('configure-event') { update_shown; GC.start }
400         signal_connect('realize') {
401             @preloader = Thread.new {
402                 #- background preloading
403                 while true
404                     msg 3, "background main preloading triggered..."
405                     if ! @entry.nil?
406                         index = $allentries.index(@entry)
407                         w, h = window.size
408                         w -= $videoborder_pixbuf.width * 2
409                         for j in 1 .. $config['preload-distance'].to_i
410                             i = index + j
411                             if i < $allentries.size
412                                 $allentries[i].pixbuf_main(w, h)
413                             end
414                             i = index - j
415                             if i >= 0
416                                 $allentries[i].pixbuf_main(w, h)
417                             end
418                             GC.start
419                             mem = get_mem
420                             if mem > $config['cache-memory-use-figure']
421                                 msg 3, "too much RSS, stopping main preloading"
422                                 break
423                             end
424                         end
425                         check_memory_free_cache_if_needed
426                     end
427                     Thread.stop
428                 end
429             }
430             @preloader.priority = -2
431         }
432     end
433
434     def set_shown_entry(entry)
435         if ! entry.nil? && entry == @entry
436             return
437         end
438         @entry = entry
439         if ! entry.nil?
440             if ! @entry.button
441                 #- not loaded yet
442                 return
443             else
444                 @entry.button.grab_focus
445             end
446         end
447         redraw        
448         @preloader.run
449     end
450
451     def get_shown_entry
452         return @entry
453     end
454
455     def show_next_entry(entry)
456         index = $allentries.index(entry) + 1
457         if index < $allentries.size
458             set_shown_entry($allentries[index])
459         end
460     end
461
462     def redraw
463         update_shown
464         w, h = window.size
465         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
466         window.clear
467         draw
468         window.end_paint
469     end
470
471     def update_shown
472         if @entry
473             width, height = window.size 
474             usable_width = width - $videoborder_pixbuf.width * 2
475             @pixbuf = @entry.pixbuf_main(usable_width, height)
476             if @pixbuf.width == usable_width
477                 @xpos = $videoborder_pixbuf.width
478                 @ypos = (height-@pixbuf.height)/2
479             else
480                 @xpos = (width-@pixbuf.width)/2
481                 @ypos = (height-@pixbuf.height)/2
482             end
483             @preloader.run
484         else
485             @pixbuf = nil
486         end
487     end
488
489     def draw
490         if @pixbuf
491             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
492             if @entry && @entry.type == 'video'
493                 y = @ypos
494                 while y < @ypos + @pixbuf.height
495                     render_height = [ @pixbuf.height, @ypos + @pixbuf.height - y ].min
496                     window.draw_pixbuf(nil, $videoborder_pixbuf, 0, 0, @xpos - $videoborder_pixbuf.width, y, -1, render_height, Gdk::RGB::DITHER_NONE, -1, -1)
497                     window.draw_pixbuf(nil, $videoborder_pixbuf, 0, 0, @xpos + @pixbuf.width, y, -1, render_height, Gdk::RGB::DITHER_NONE, -1, -1)
498                     y += $videoborder_pixbuf.height
499                 end
500             end
501         end
502     end
503 end
504
505 def check_memory_free_cache_if_needed
506     GC.start
507     mem = get_mem
508     i = $allentries.index($mainview.get_shown_entry)
509     msg 3, "mem: #{mem} index: #{i}"
510     return if i.nil?
511     ($allentries.size - 1).downto(1) { |j|
512         if mem < $config['cache-memory-use-figure'] * 2 / 3
513             break
514         end
515         index = i + j
516         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
517         freedsomething = false
518         if i + j < $allentries.size
519             freedsomething |= $allentries[i+j].free_pixbuf_full
520         end
521         if i - j > 0
522             freedsomething |= $allentries[i-j].free_pixbuf_full
523         end
524         if freedsomething
525             GC.start
526             mem = get_mem
527             msg 3, "\tmem now: #{mem}"
528         end
529     }
530 end
531
532 def autoscroll_if_needed(button)
533     xpos_left = button.allocation.x
534     xpos_right = button.allocation.x + button.allocation.width
535     hadj = $imagesline_sw.hadjustment
536     current_minx_visible = hadj.value
537     current_maxx_visible = hadj.value + hadj.page_size
538     if xpos_left < current_minx_visible
539         #- autoscroll left
540         newval = hadj.value - (current_minx_visible - xpos_left)
541         hadj.value = newval
542         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
543     elsif xpos_right > current_maxx_visible
544         #- autoscroll right
545         newval = hadj.value + (xpos_right - current_maxx_visible)
546         if newval > hadj.upper - hadj.page_size
547             newval = hadj.upper - hadj.page_size
548         end
549         hadj.value = newval
550         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
551     end
552 end
553
554 def show_popup(parent, msg, *options)
555     dialog = Gtk::Dialog.new
556     if options[0]
557         options = options[0]
558     else
559         options = {}
560     end
561     if options[:title]
562         dialog.title = options[:title]
563     else
564         dialog.title = utf8(_("Booh message"))
565     end
566     lbl = Gtk::Label.new
567     if options[:nomarkup]
568         lbl.text = msg
569     else
570         lbl.markup = msg
571     end
572     if options[:centered]
573         lbl.set_justify(Gtk::Justification::CENTER)
574     end
575     if options[:selectable]
576         lbl.selectable = true
577     end
578     if options[:topwidget]
579         dialog.vbox.add(options[0][:topwidget])
580     end
581     if options[:scrolled]
582         sw = Gtk::ScrolledWindow.new(nil, nil)
583         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
584         sw.add_with_viewport(lbl)
585         dialog.vbox.add(sw)
586         dialog.set_default_size(500, 600)
587     else
588         dialog.vbox.add(lbl)
589         dialog.set_default_size(200, 120)
590     end
591     if options[:bottomwidget]
592         dialog.vbox.add(options[:bottomwidget])
593     end
594     if options[:okcancel]
595         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
596     end
597     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
598
599     if options[:pos_centered]
600         dialog.window_position = Gtk::Window::POS_CENTER
601     else
602         dialog.window_position = Gtk::Window::POS_MOUSE
603     end
604
605     if options[:linkurl]
606         linkbut = Gtk::Button.new('')
607         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
608         linkbut.signal_connect('clicked') {
609             open_url(options[0][:linkurl] + '/index.html')
610             dialog.response(Gtk::Dialog::RESPONSE_OK)
611             set_mousecursor_normal
612         }
613         linkbut.relief = Gtk::RELIEF_NONE
614         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
615         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
616         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
617     end
618
619     dialog.show_all
620
621     if options[:stuff_connector]
622         options[:stuff_connector].call({ :dialog => dialog })
623     end
624                                         
625     if !options[:not_transient]
626         dialog.transient_for = parent
627         dialog.run { |response|
628             if options[:data_getter]
629                 options[:data_getter].call
630             end
631             dialog.destroy
632             if options[:okcancel]
633                 return response == Gtk::Dialog::RESPONSE_OK
634             end
635         }
636     else
637         dialog.signal_connect('response') { dialog.destroy }
638     end
639 end
640
641 def thumbnail_keypressed(entry, event)
642     if event.state & Gdk::Window::MOD1_MASK != 0
643         #- ALT pressed: Alt-Left and Alft-Right rotate
644         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
645             if event.keyval == Gdk::Keyval::GDK_Left
646                 entry.angle = (entry.angle - 90) % 360
647             else
648                 entry.angle = (entry.angle + 90) % 360
649             end
650             entry.free_pixbuf_full
651             entry.free_pixbuf_main
652             entry.free_pixbuf_thumbnail
653             $mainview.redraw
654             entry.image.pixbuf = entry.pixbuf_thumbnail
655         end
656
657     elsif event.state & Gdk::Window::CONTROL_MASK != 0
658         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
659         if event.keyval == Gdk::Keyval::GDK_z
660             perform_undo
661         end
662         if event.keyval == Gdk::Keyval::GDK_r
663             perform_redo
664         end
665
666     else
667         removed_before = entry.removed
668         label_before = entry.labeled
669
670         if event.keyval == Gdk::Keyval::GDK_Delete
671             entry.removed = true
672             entry.labeled = nil
673             entry.show_bg
674             $mainview.show_next_entry(entry)
675
676             save_undo(_("set for removal"),
677                       proc {
678                           entry.removed = removed_before
679                           entry.labeled = label_before
680                           entry.show_bg
681                           $mainview.set_shown_entry(entry)
682                           proc {
683                               entry.removed = true
684                               entry.labeled = nil
685                               entry.show_bg
686                               $mainview.set_shown_entry(entry)
687                           }
688                       })
689
690         elsif event.keyval == Gdk::Keyval::GDK_space
691             entry.removed = false
692             entry.labeled = nil
693             entry.show_bg
694             $mainview.show_next_entry(entry)
695
696             save_undo(_("remove label"),
697                       proc {
698                           entry.removed = removed_before
699                           entry.labeled = label_before
700                           entry.show_bg
701                           $mainview.set_shown_entry(entry)
702                           proc {
703                               entry.removed = false
704                               entry.labeled = nil
705                               entry.show_bg
706                               $mainview.set_shown_entry(entry)
707                           }
708                       })
709
710         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
711             cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
712             msg 2, cmd
713             system(cmd)
714
715         else
716             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
717             if char =~ /^[a-zA-z0-9]$/
718                 label = $labels[char]
719                 
720                 if label.nil?
721                     vb = Gtk::VBox.new(false, 0)
722                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
723                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::Button.new(utf8(_("  Change color  ")))))
724                     text = nil
725                     color = nil
726                     bt.signal_connect('clicked') {
727                         color = $colors.shift
728                         if color.nil?
729                             color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
730                         end
731                         bt.modify_bg(Gtk::StateType::NORMAL, color)
732                         bt.modify_bg(Gtk::StateType::PRELIGHT, color)
733                         bt.modify_bg(Gtk::StateType::ACTIVE, color.darker)
734                     }
735                     bt.clicked
736                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
737                         while $labels.has_key?(entry.text[0,1])
738                             entry.text = entry.text.sub(/./, '')
739                         end
740                     }
741                     if show_popup($main_window,
742                                   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,
743                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
744                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
745                                                                        entry.position = -1
746                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
747                         if text.length > 0
748                             char = text[0,1]  #- in case it changed
749                             label = Label.new(text)
750                             label.color = color
751                             $labels[char] = label
752                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
753                             $labels_vbox.pack_start(evt = Gtk::EventBox.new.add(lbl).modify_bg(Gtk::StateType::NORMAL, label.color).show_all)
754                         end
755                     end
756
757                 else
758                     entry.removed = false
759                     entry.labeled = label
760                     entry.show_bg
761                     $mainview.show_next_entry(entry)
762
763                     save_undo(_("set label"),
764                               proc {
765                                   entry.removed = removed_before
766                                   entry.labeled = label_before
767                                   entry.show_bg
768                                   $mainview.set_shown_entry(entry)
769                                   proc {
770                                       entry.removed = false
771                                       entry.labeled = label
772                                       entry.show_bg
773                                       $mainview.set_shown_entry(entry)
774                                   }
775                               })
776                 end
777             end
778         end
779     end
780 end
781
782 def sb_msg(msg)
783     $statusbar.pop(0)
784     if msg
785         $statusbar.push(0, utf8(msg))
786     end
787 end
788
789 def real_show_entry(entry, tooltips, grab_focus)
790     #- for scoping the actual reference to 'entry'
791     gtk_thread_protect(proc {
792         msg 3, "using entry #{entry}"
793         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
794         if entry.type == 'video'
795             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
796                                                              pack_start(entry.image).
797                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
798             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
799             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
800         else
801             entry.button = Gtk::Button.new.set_image(entry.image)
802         end
803         tooltips.set_tip(entry.button, File.basename(entry.path).gsub(/\.[^.]+$/, ''), nil)
804         $imagesline.pack_start(entry.button.show_all, false, false)
805         entry.button.signal_connect('clicked') { $mainview.set_shown_entry(entry) }
806         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
807         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
808         if grab_focus
809             entry.button.grab_focus
810         end
811     })
812 end
813
814 def show_entries
815     e = Thread.new {
816         t1 = Time.now
817         sb_msg(_("Loading images..."))
818         tooltips = Gtk::Tooltips.new
819         counter = 0
820         toremove = []
821         grab_focus = true
822         i = 0
823         total_size = 0
824         while i < $allentries.size
825             entry = $allentries[i]
826             if entry.pixbuf_full
827                 total_size += file_size(entry.path)
828                 entry.pixbuf_thumbnail
829                 real_show_entry(entry, tooltips, grab_focus)
830                 grab_focus = false
831                 if i % 4 == 0
832                     check_memory_free_cache_if_needed
833                 end
834                 counter += 1
835                 i = i + 1
836
837             else
838                 $allentries.delete_at(i)
839             end
840         end
841         check_memory_free_cache_if_needed
842         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
843     }
844     e.priority = -1
845 end
846
847 def reset_all
848     reset_labels
849     reset_thumbnails
850     $mainview.set_shown_entry(nil)
851     sb_msg(nil)
852 end
853
854 def open_dir(path)
855     #- remove visual stuff, so that user will see something is happening
856     reset_all
857     sb_msg(_("Scanning source directory..."))
858
859     path = File.expand_path(path.sub(%r|/$|, ''))
860     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
861     #- validate first
862     examined_dirs.each { |dir|
863         if dir =~ /'/
864             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
865         end
866         Dir.entries(dir).each { |file|
867             if file =~ /['"\[\]]/
868                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
869             end
870         }
871     }
872
873     #- scan for populate second
874     examined_dirs.each { |dir|
875         if File.basename(dir) =~ /^\./
876             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
877             next
878         end
879         Dir.entries(dir).each { |file|
880             type = entry2type(file)
881            if type && $allentries.size < 120
882                 $allentries << Entry.new(File.join(dir, file), type)
883             end
884         }
885     }
886     $workingdir = path
887     show_entries
888     $execute.sensitive = true
889     return nil
890 end
891
892 def open_dir_popup
893     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
894                                     nil,
895                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
896                                     nil,
897                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
898     fc.transient_for = $main_window
899     if $workingdir
900         fc.current_folder = $workingdir
901     end
902     ok = false
903     while !ok
904         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
905             msg = open_dir(fc.filename)
906             if msg
907                 show_popup(fc, msg)
908                 ok = false
909             else
910                 ok = true
911             end
912         else
913             ok = true
914         end
915     end
916     fc.destroy
917 end
918
919 def gtk_thread_protect(proc, *params)
920     if Thread.current == Thread.main
921         proc.call(*params)
922     else
923         $protect_gtk_pending_calls.synchronize {
924             $gtk_pending_calls << [ proc, params ]
925         }
926     end
927 end
928
929 def gtk_thread_flush
930     $protect_gtk_pending_calls.synchronize {
931         if $gtk_pending_calls.size > 0
932             elem = $gtk_pending_calls.shift
933             elem[0].call(*elem[1])
934         end
935     }
936 end
937
938 def try_quit(*options)
939     Gtk.main_quit
940 end
941
942 def execute
943     dialog = Gtk::Dialog.new
944     dialog.title = utf8(_("Booh message"))
945
946     vb1 = Gtk::VBox.new(false, 5)
947     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!")))
948     vb1.pack_start(label, false, false)
949
950     table = Gtk::Table.new(0, 0, false)
951     table.set_row_spacings(5)
952     table.set_column_spacings(5)
953     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)
954     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)
955     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)
956     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)
957     add_row = proc { |row, name, color, truthproc, normal|
958         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)),
959                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
960         counter = 0
961         examples = Gtk::HBox.new(false, 5)
962         $allentries.each { |entry|
963             if truthproc.call(entry)
964                 counter += 1
965                 if counter < 4
966                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
967                     if entry.type == 'video'
968                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
969                                                   pack_start(thumbnail).
970                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
971                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
972                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
973                     end
974                     examples.pack_start(thumbnail, false, false)
975                 elsif counter == 4
976                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
977                 end
978             end
979         }
980         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
981         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
982
983         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
984         iter = combostore.append
985         if normal
986             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
987             iter[1] = utf8(_("Move to:"))
988         else
989             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
990             iter[1] = utf8(_("Permanently remove"))
991         end
992         iter = combostore.append
993         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
994         iter[1] = utf8(_("Do nothing"))
995         combo = Gtk::ComboBox.new(combostore)
996         combo.active = 0
997         renderer = Gtk::CellRendererPixbuf.new
998         combo.pack_start(renderer, false)
999         combo.set_attributes(renderer, :pixbuf => 0)
1000         renderer = Gtk::CellRendererText.new
1001         combo.pack_start(renderer, true)
1002         combo.set_attributes(renderer, :text => 1)
1003
1004         if normal
1005             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1006             lastpath = $workingdir
1007             pathbutton.signal_connect('clicked') {
1008                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1009                                                 nil,
1010                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1011                                                 nil,
1012                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1013                 fc.transient_for = dialog
1014                 fc.current_folder = lastpath
1015                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1016                     pathlabel.text = fc.filename
1017                 end
1018                 lastpath = fc.filename
1019                 fc.destroy
1020             }
1021             combo.signal_connect('changed') {
1022                 pathbutton.sensitive = combo.active == 0
1023             }
1024             vb = Gtk::VBox.new(false, 5)
1025             vb.pack_start(combo, false, false)
1026             vb.pack_start(pathbutton, false, false)
1027             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1028             { :combo => combo, :pathlabel => pathlabel }
1029         else
1030             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1031             { :combo => combo }
1032         end
1033     }
1034     stuff = {}
1035     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), Gdk::Color.new(65535, 0, 0), proc { |entry| entry.removed }, false)
1036     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1037     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1038
1039     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1040     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1041     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 ]))
1042     if toremove_amount > 0
1043         vb1.pack_start(check_removal, false, false)
1044         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1045             check_removal.sensitive = widget.active == 0
1046         }
1047     end
1048
1049     dialog.vbox.add(vb1)
1050
1051     dialog.set_default_size(800, 600)
1052     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1053     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1054     dialog.window_position = Gtk::Window::POS_MOUSE
1055     dialog.transient_for = $main_window
1056
1057     dialog.show_all
1058
1059     while true
1060         dialog.run { |response|        
1061             if response == Gtk::Dialog::RESPONSE_OK
1062                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1063                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1064                     break
1065                 end
1066                 problem = false
1067                 label2entries = {}
1068                 $labels.values.each { |label| label2entries[label] = [] }
1069                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1070                 stuff.keys.each { |key|
1071                     if key.is_a?(Label) && stuff[key][:combo].active == 0
1072                         destination = stuff[key][:pathlabel].text
1073                         if destination[0] != ?/
1074                             show_popup(dialog, utf8(_("You have not selected a directory where to move %s.") % key.name))
1075                             problem = true
1076                             break
1077                         end
1078                         st = File.stat(destination)
1079                         if ! st.directory? || ! st.writable?
1080                             show_popup(dialog, utf8(_("Directory where to move %s is not valid or not writable.") % key.name))
1081                             problem = true
1082                             break
1083                         end
1084                         label2entries[key].each { |entry|
1085                             begin
1086                                 File.stat(File.join(destination, File.basename(entry.path)))
1087                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in '%s'.") % [ File.basename(entry.path), destination ]))
1088                                 problem = true
1089                                 break
1090                             rescue
1091                             end
1092                         }
1093                         if problem
1094                             break
1095                         end
1096                     end
1097                 }
1098                 if ! problem
1099                     begin
1100                         moved = 0
1101                         stuff.keys.each { |key|
1102                             if key.is_a?(Label) && stuff[key][:combo].active == 0
1103                                 destination = stuff[key][:pathlabel].text
1104                                 label2entries[key].each { |entry|
1105                                     File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1106                                     moved += 1
1107                                 }
1108                             end
1109                         }
1110                         removed = 0
1111                         if stuff['toremove'][:combo].active == 0
1112                             $allentries.each { |entry|
1113                                 if entry.removed
1114                                     File.delete(entry.path)
1115                                     removed += 1
1116                                 end
1117                             }
1118                         end
1119                     rescue
1120                         msg 1, "woops: #{$!}"
1121                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1122                     end
1123                     show_popup(dialog, utf8(_("Successfully moved %d files and removed %d files.") % [ moved, removed ]))
1124                     dialog.destroy
1125                     reset_all
1126                     return
1127                 end
1128
1129             else
1130                 dialog.destroy
1131                 return
1132             end
1133         }
1134     end
1135 end
1136
1137 def preferences
1138     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1139                              $main_window,
1140                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1141                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1142                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1143
1144     tooltips = Gtk::Tooltips.new
1145     
1146     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1147     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1148                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1149     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1150                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1151     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1152
1153     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1154                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1155     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1156                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1157     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1158
1159     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1160                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1161     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1162                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1163     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1164
1165     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1166                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1167     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1168                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1169     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1170                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1171                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1172     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1173     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1174     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1175                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1176                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1177     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1178     cache_memfree_radio.signal_connect('toggled') {
1179         if cache_memfree_radio.active?
1180             cache_memfree_label.sensitive = true
1181             cache_specify_label.sensitive = false
1182         else
1183             cache_specify_label.sensitive = true
1184             cache_memfree_label.sensitive = false
1185         end
1186     }
1187     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1188     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1189         cache_memfree_spin.value = $1.to_i
1190     else
1191         cache_specify_spin.value = $config['cache-memory-use'].to_i
1192     end
1193
1194     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1195                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1196     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1197     update_exif_orientation_check.active = $config['rotate-set-exif']
1198
1199     dialog.vbox.show_all
1200     dialog.run { |response|
1201         if response == Gtk::Dialog::RESPONSE_OK
1202             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1203             $config['browser'] = from_utf8(browser_entry.text)
1204             $config['preload-distance'] = preload_distance.value
1205             $config['rotate-set-exif'] = update_exif_orientation_check.active?
1206             if cache_memfree_radio.active?
1207                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1208             else
1209                 $config['cache-memory-use'] = cache_specify_spin.value
1210             end
1211             set_cache_memory_use_figure
1212         end
1213     }
1214     dialog.destroy
1215 end
1216
1217 def perform_undo
1218     if $undo_mb.sensitive?
1219         $redo_mb.sensitive = true
1220         if not more_undoes = UndoHandler.undo($statusbar)
1221             $undo_mb.sensitive = false
1222         end
1223     end
1224 end
1225
1226 def perform_redo
1227     if $redo_mb.sensitive?
1228         $undo_mb.sensitive = true
1229         if not more_redoes = UndoHandler.redo($statusbar)
1230             $redo_mb.sensitive = false
1231         end
1232     end
1233 end
1234
1235 def create_menubar    
1236     #- menu
1237     mb = Gtk::MenuBar.new
1238
1239     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1240     filesubmenu = Gtk::Menu.new
1241     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1242     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1243     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1244     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1245     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1246     filemenu.set_submenu(filesubmenu)
1247     mb.append(filemenu)
1248
1249     open.signal_connect('activate') { open_dir_popup }
1250     $execute.signal_connect('activate') { execute }
1251     quit.signal_connect('activate') { try_quit }
1252
1253     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1254     editsubmenu = Gtk::Menu.new
1255     editsubmenu.append($undo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1256     editsubmenu.append($redo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1257     editsubmenu.append(           Gtk::SeparatorMenuItem.new)
1258     editsubmenu.append(prefs    = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1259     editmenu.set_submenu(editsubmenu)
1260     mb.append(editmenu)
1261
1262     $undo_mb.signal_connect('activate') { perform_undo }
1263     $redo_mb.signal_connect('activate') { perform_redo }
1264     prefs.signal_connect('activate') { preferences }
1265     
1266     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1267     helpsubmenu = Gtk::Menu.new
1268     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1269     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1270     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1271     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1272     helpmenu.set_submenu(helpsubmenu)
1273     mb.append(helpmenu)
1274
1275     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1276     about.signal_connect('activate') { call_about }
1277
1278
1279     #- no toolbar, to save height
1280
1281     return mb
1282 end
1283
1284 def reset_labels
1285     for child in $labels_vbox.children
1286         $labels_vbox.remove(child)
1287     end
1288     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1289     $labels = {}
1290 end
1291
1292 def reset_thumbnails
1293     $allentries = []
1294     for child in $imagesline.children
1295         $imagesline.remove(child)
1296     end
1297 end
1298
1299 def create_main_window
1300
1301     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1302     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1303
1304     mb = create_menubar
1305
1306     main_vbox = Gtk::VBox.new(false, 0)
1307     main_vbox.pack_start(mb, false, false)
1308     mainview_hbox = Gtk::HBox.new
1309     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1310     reset_labels
1311     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1312     main_vbox.pack_start(mainview_hbox, true, true)
1313     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1314     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1315     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1316     main_vbox.pack_start($imagesline_sw, false, false)
1317     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1318
1319     $imagesline.set_size_request(-1, Entry.thumbnails_height + $imagesline_sw.hscrollbar.size_request[1])
1320
1321     $main_window = Gtk::Window.new
1322     $main_window.add(main_vbox)
1323     $main_window.signal_connect('delete-event') {
1324         try_quit({ :disallow_cancel => true })
1325     }
1326
1327     #- read/save size and position of window
1328     if $config['pos-x'] && $config['pos-y']
1329         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1330     else
1331         $main_window.window_position = Gtk::Window::POS_CENTER
1332     end
1333     msg 3, "size: #{$config['width']}x#{$config['height']}"
1334     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1335     $main_window.signal_connect('configure-event') {
1336         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1337         x, y = $main_window.window.root_origin
1338         width, height = $main_window.window.size
1339         $config['pos-x'] = x
1340         $config['pos-y'] = y
1341         $config['width'] = width
1342         $config['height'] = height
1343         false
1344     }
1345
1346     $protect_gtk_pending_calls = Mutex.new
1347     $gtk_pending_calls = []
1348     Gtk.timeout_add(50) {
1349         gtk_thread_flush
1350         true
1351     }
1352
1353     $main_window.show_all
1354 end
1355
1356
1357 handle_options
1358 Thread.abort_on_exception = true
1359 read_config
1360 Gtk.init
1361
1362
1363 #- Gdk::Pixbuf#rotate memory leak check (in ruby-gnome2 <= 0.16.0)
1364 #pb = Gdk::Pixbuf.new("#{$FPATH}/images/logo.png")
1365 #1.upto(5) { pb = pb.rotate(Gdk::Pixbuf::ROTATE_CLOCKWISE) }
1366 #GC.start
1367 #mem = get_mem
1368 #1.upto(5) { pb = pb.rotate(Gdk::Pixbuf::ROTATE_CLOCKWISE) }
1369 #GC.start
1370 #mem2 = get_mem
1371 #if mem2 != mem
1372 #    puts _("Gdk::Pixbuf#scale memory leak detected (this is normal with unpatched ruby-gnome2 <= 0.16.0). Application would slow down to a crawl, won't proceed.")
1373 #    exit 1
1374 #end
1375
1376 create_main_window
1377 check_config
1378
1379 if ARGV[0]
1380     open_dir(ARGV[0])
1381 end
1382 Gtk.main
1383
1384 write_config