override rg2's gdkpixbuf.rotate with a noleak method instead of testing for the fix
[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 = $videoborder_pixbuf.width
478                 @ypos = (height-@pixbuf.height)/2
479             else
480                 @xpos = (width-@pixbuf.width)/2
481                 @ypos = (height-@pixbuf.height)/2
482             end
483             @preloader.run
484         else
485             @pixbuf = nil
486         end
487     end
488
489     def draw
490         if @pixbuf
491             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
492             if @entry && @entry.type == 'video'
493                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
494             end
495         end
496     end
497 end
498
499 def check_memory_free_cache_if_needed
500     GC.start
501     mem = get_mem
502     i = $allentries.index($mainview.get_shown_entry)
503     msg 3, "mem: #{mem} index: #{i}"
504     return if i.nil?
505     ($allentries.size - 1).downto(1) { |j|
506         if mem < $config['cache-memory-use-figure'] * 2 / 3
507             break
508         end
509         index = i + j
510         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
511         freedsomething = false
512         if i + j < $allentries.size
513             freedsomething |= $allentries[i+j].free_pixbuf_full
514         end
515         if i - j > 0
516             freedsomething |= $allentries[i-j].free_pixbuf_full
517         end
518         if freedsomething
519             GC.start
520             mem = get_mem
521             msg 3, "\tmem now: #{mem}"
522         end
523     }
524 end
525
526 def autoscroll_if_needed(button)
527     xpos_left = button.allocation.x
528     xpos_right = button.allocation.x + button.allocation.width
529     hadj = $imagesline_sw.hadjustment
530     current_minx_visible = hadj.value
531     current_maxx_visible = hadj.value + hadj.page_size
532     if xpos_left < current_minx_visible
533         #- autoscroll left
534         newval = hadj.value - (current_minx_visible - xpos_left)
535         hadj.value = newval
536         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
537     elsif xpos_right > current_maxx_visible
538         #- autoscroll right
539         newval = hadj.value + (xpos_right - current_maxx_visible)
540         if newval > hadj.upper - hadj.page_size
541             newval = hadj.upper - hadj.page_size
542         end
543         hadj.value = newval
544         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
545     end
546 end
547
548 def show_popup(parent, msg, *options)
549     dialog = Gtk::Dialog.new
550     if options[0]
551         options = options[0]
552     else
553         options = {}
554     end
555     if options[:title]
556         dialog.title = options[:title]
557     else
558         dialog.title = utf8(_("Booh message"))
559     end
560     lbl = Gtk::Label.new
561     if options[:nomarkup]
562         lbl.text = msg
563     else
564         lbl.markup = msg
565     end
566     if options[:centered]
567         lbl.set_justify(Gtk::Justification::CENTER)
568     end
569     if options[:selectable]
570         lbl.selectable = true
571     end
572     if options[:topwidget]
573         dialog.vbox.add(options[0][:topwidget])
574     end
575     if options[:scrolled]
576         sw = Gtk::ScrolledWindow.new(nil, nil)
577         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
578         sw.add_with_viewport(lbl)
579         dialog.vbox.add(sw)
580         dialog.set_default_size(500, 600)
581     else
582         dialog.vbox.add(lbl)
583         dialog.set_default_size(200, 120)
584     end
585     if options[:bottomwidget]
586         dialog.vbox.add(options[:bottomwidget])
587     end
588     if options[:okcancel]
589         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
590     end
591     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
592
593     if options[:pos_centered]
594         dialog.window_position = Gtk::Window::POS_CENTER
595     else
596         dialog.window_position = Gtk::Window::POS_MOUSE
597     end
598
599     if options[:linkurl]
600         linkbut = Gtk::Button.new('')
601         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
602         linkbut.signal_connect('clicked') {
603             open_url(options[0][:linkurl] + '/index.html')
604             dialog.response(Gtk::Dialog::RESPONSE_OK)
605             set_mousecursor_normal
606         }
607         linkbut.relief = Gtk::RELIEF_NONE
608         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
609         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
610         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
611     end
612
613     dialog.show_all
614
615     if options[:stuff_connector]
616         options[:stuff_connector].call({ :dialog => dialog })
617     end
618                                         
619     if !options[:not_transient]
620         dialog.transient_for = parent
621         dialog.run { |response|
622             if options[:data_getter]
623                 options[:data_getter].call
624             end
625             dialog.destroy
626             if options[:okcancel]
627                 return response == Gtk::Dialog::RESPONSE_OK
628             end
629         }
630     else
631         dialog.signal_connect('response') { dialog.destroy }
632     end
633 end
634
635 def thumbnail_keypressed(entry, event)
636     if event.state & Gdk::Window::MOD1_MASK != 0
637         #- ALT pressed: Alt-Left and Alft-Right rotate
638         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
639             if event.keyval == Gdk::Keyval::GDK_Left
640                 entry.angle = (entry.angle - 90) % 360
641             else
642                 entry.angle = (entry.angle + 90) % 360
643             end
644             entry.free_pixbuf_full
645             entry.free_pixbuf_main
646             entry.free_pixbuf_thumbnail
647             $mainview.redraw
648             entry.image.pixbuf = entry.pixbuf_thumbnail
649         end
650
651     elsif event.state & Gdk::Window::CONTROL_MASK != 0
652         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
653         if event.keyval == Gdk::Keyval::GDK_z
654             perform_undo
655         end
656         if event.keyval == Gdk::Keyval::GDK_r
657             perform_redo
658         end
659
660     else
661         removed_before = entry.removed
662         label_before = entry.labeled
663
664         if event.keyval == Gdk::Keyval::GDK_Delete
665             entry.removed = true
666             entry.labeled = nil
667             entry.show_bg
668             $mainview.show_next_entry(entry)
669
670             save_undo(_("set for removal"),
671                       proc {
672                           entry.removed = removed_before
673                           entry.labeled = label_before
674                           entry.show_bg
675                           $mainview.set_shown_entry(entry)
676                           proc {
677                               entry.removed = true
678                               entry.labeled = nil
679                               entry.show_bg
680                               $mainview.set_shown_entry(entry)
681                           }
682                       })
683
684         elsif event.keyval == Gdk::Keyval::GDK_space
685             entry.removed = false
686             entry.labeled = nil
687             entry.show_bg
688             $mainview.show_next_entry(entry)
689
690             save_undo(_("remove label"),
691                       proc {
692                           entry.removed = removed_before
693                           entry.labeled = label_before
694                           entry.show_bg
695                           $mainview.set_shown_entry(entry)
696                           proc {
697                               entry.removed = false
698                               entry.labeled = nil
699                               entry.show_bg
700                               $mainview.set_shown_entry(entry)
701                           }
702                       })
703
704         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
705             cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
706             msg 2, cmd
707             system(cmd)
708
709         else
710             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
711             if char =~ /^[a-zA-z0-9]$/
712                 label = $labels[char]
713                 
714                 if label.nil?
715                     vb = Gtk::VBox.new(false, 0)
716                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
717                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::Button.new(utf8(_("  Change color  ")))))
718                     text = nil
719                     color = nil
720                     bt.signal_connect('clicked') {
721                         color = $colors.shift
722                         if color.nil?
723                             color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
724                         end
725                         bt.modify_bg(Gtk::StateType::NORMAL, color)
726                         bt.modify_bg(Gtk::StateType::PRELIGHT, color)
727                         bt.modify_bg(Gtk::StateType::ACTIVE, color.darker)
728                     }
729                     bt.clicked
730                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
731                         while $labels.has_key?(entry.text[0,1])
732                             entry.text = entry.text.sub(/./, '')
733                         end
734                     }
735                     if show_popup($main_window,
736                                   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,
737                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
738                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
739                                                                        entry.position = -1
740                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
741                         if text.length > 0
742                             char = text[0,1]  #- in case it changed
743                             label = Label.new(text)
744                             label.color = color
745                             $labels[char] = label
746                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
747                             $labels_vbox.pack_start(evt = Gtk::EventBox.new.add(lbl).modify_bg(Gtk::StateType::NORMAL, label.color).show_all)
748                         end
749                     end
750
751                 else
752                     entry.removed = false
753                     entry.labeled = label
754                     entry.show_bg
755                     $mainview.show_next_entry(entry)
756
757                     save_undo(_("set label"),
758                               proc {
759                                   entry.removed = removed_before
760                                   entry.labeled = label_before
761                                   entry.show_bg
762                                   $mainview.set_shown_entry(entry)
763                                   proc {
764                                       entry.removed = false
765                                       entry.labeled = label
766                                       entry.show_bg
767                                       $mainview.set_shown_entry(entry)
768                                   }
769                               })
770                 end
771             end
772         end
773     end
774 end
775
776 def sb_msg(msg)
777     $statusbar.pop(0)
778     if msg
779         $statusbar.push(0, utf8(msg))
780     end
781 end
782
783 def real_show_entry(entry, tooltips, grab_focus)
784     #- for scoping the actual reference to 'entry'
785     gtk_thread_protect(proc {
786         msg 3, "using entry #{entry}"
787         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
788         if entry.type == 'video'
789             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
790                                                              pack_start(entry.image).
791                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
792             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
793             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
794         else
795             entry.button = Gtk::Button.new.set_image(entry.image)
796         end
797         tooltips.set_tip(entry.button, File.basename(entry.path).gsub(/\.[^.]+$/, ''), nil)
798         $imagesline.pack_start(entry.button.show_all, false, false)
799         entry.button.signal_connect('clicked') { $mainview.set_shown_entry(entry) }
800         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
801         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
802         if grab_focus
803             entry.button.grab_focus
804         end
805     })
806 end
807
808 def show_entries
809     e = Thread.new {
810         t1 = Time.now
811         sb_msg(_("Loading images..."))
812         tooltips = Gtk::Tooltips.new
813         counter = 0
814         toremove = []
815         grab_focus = true
816         i = 0
817         total_size = 0
818         while i < $allentries.size
819             entry = $allentries[i]
820             if entry.pixbuf_full
821                 total_size += file_size(entry.path)
822                 entry.pixbuf_thumbnail
823                 real_show_entry(entry, tooltips, grab_focus)
824                 grab_focus = false
825                 if i % 4 == 0
826                     check_memory_free_cache_if_needed
827                 end
828                 counter += 1
829                 i = i + 1
830
831             else
832                 $allentries.delete_at(i)
833             end
834         end
835         check_memory_free_cache_if_needed
836         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
837     }
838     e.priority = -1
839 end
840
841 def reset_all
842     reset_labels
843     reset_thumbnails
844     $mainview.set_shown_entry(nil)
845     sb_msg(nil)
846 end
847
848 def open_dir(path)
849     #- remove visual stuff, so that user will see something is happening
850     reset_all
851     sb_msg(_("Scanning source directory..."))
852
853     path = File.expand_path(path.sub(%r|/$|, ''))
854     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
855     #- validate first
856     examined_dirs.each { |dir|
857         if dir =~ /'/
858             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
859         end
860         Dir.entries(dir).each { |file|
861             if file =~ /['"\[\]]/
862                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
863             end
864         }
865     }
866
867     #- scan for populate second
868     examined_dirs.each { |dir|
869         if File.basename(dir) =~ /^\./
870             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
871             next
872         end
873         Dir.entries(dir).each { |file|
874             type = entry2type(file)
875            if type && $allentries.size < 120
876                 $allentries << Entry.new(File.join(dir, file), type)
877             end
878         }
879     }
880     $workingdir = path
881     show_entries
882     $execute.sensitive = true
883     return nil
884 end
885
886 def open_dir_popup
887     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
888                                     nil,
889                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
890                                     nil,
891                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
892     fc.transient_for = $main_window
893     if $workingdir
894         fc.current_folder = $workingdir
895     end
896     ok = false
897     while !ok
898         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
899             msg = open_dir(fc.filename)
900             if msg
901                 show_popup(fc, msg)
902                 ok = false
903             else
904                 ok = true
905             end
906         else
907             ok = true
908         end
909     end
910     fc.destroy
911 end
912
913 def gtk_thread_protect(proc, *params)
914     if Thread.current == Thread.main
915         proc.call(*params)
916     else
917         $protect_gtk_pending_calls.synchronize {
918             $gtk_pending_calls << [ proc, params ]
919         }
920     end
921 end
922
923 def gtk_thread_flush
924     $protect_gtk_pending_calls.synchronize {
925         if $gtk_pending_calls.size > 0
926             elem = $gtk_pending_calls.shift
927             elem[0].call(*elem[1])
928         end
929     }
930 end
931
932 def try_quit(*options)
933     Gtk.main_quit
934 end
935
936 def execute
937     dialog = Gtk::Dialog.new
938     dialog.title = utf8(_("Booh message"))
939
940     vb1 = Gtk::VBox.new(false, 5)
941     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!")))
942     vb1.pack_start(label, false, false)
943
944     table = Gtk::Table.new(0, 0, false)
945     table.set_row_spacings(5)
946     table.set_column_spacings(5)
947     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)
948     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)
949     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)
950     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)
951     add_row = proc { |row, name, color, truthproc, normal|
952         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)),
953                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
954         counter = 0
955         examples = Gtk::HBox.new(false, 5)
956         $allentries.each { |entry|
957             if truthproc.call(entry)
958                 counter += 1
959                 if counter < 4
960                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
961                     if entry.type == 'video'
962                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
963                                                   pack_start(thumbnail).
964                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
965                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
966                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
967                     end
968                     examples.pack_start(thumbnail, false, false)
969                 elsif counter == 4
970                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
971                 end
972             end
973         }
974         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
975         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
976
977         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
978         iter = combostore.append
979         if normal
980             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
981             iter[1] = utf8(_("Move to:"))
982         else
983             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
984             iter[1] = utf8(_("Permanently remove"))
985         end
986         iter = combostore.append
987         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
988         iter[1] = utf8(_("Do nothing"))
989         combo = Gtk::ComboBox.new(combostore)
990         combo.active = 0
991         renderer = Gtk::CellRendererPixbuf.new
992         combo.pack_start(renderer, false)
993         combo.set_attributes(renderer, :pixbuf => 0)
994         renderer = Gtk::CellRendererText.new
995         combo.pack_start(renderer, true)
996         combo.set_attributes(renderer, :text => 1)
997
998         if normal
999             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1000             lastpath = $workingdir
1001             pathbutton.signal_connect('clicked') {
1002                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1003                                                 nil,
1004                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1005                                                 nil,
1006                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1007                 fc.transient_for = dialog
1008                 fc.current_folder = lastpath
1009                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1010                     pathlabel.text = fc.filename
1011                 end
1012                 lastpath = fc.filename
1013                 fc.destroy
1014             }
1015             combo.signal_connect('changed') {
1016                 pathbutton.sensitive = combo.active == 0
1017             }
1018             vb = Gtk::VBox.new(false, 5)
1019             vb.pack_start(combo, false, false)
1020             vb.pack_start(pathbutton, false, false)
1021             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1022             { :combo => combo, :pathlabel => pathlabel }
1023         else
1024             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1025             { :combo => combo }
1026         end
1027     }
1028     stuff = {}
1029     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), Gdk::Color.new(65535, 0, 0), proc { |entry| entry.removed }, false)
1030     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1031     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1032
1033     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1034     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1035     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 ]))
1036     if toremove_amount > 0
1037         vb1.pack_start(check_removal, false, false)
1038         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1039             check_removal.sensitive = widget.active == 0
1040         }
1041     end
1042
1043     dialog.vbox.add(vb1)
1044
1045     dialog.set_default_size(800, 600)
1046     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1047     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1048     dialog.window_position = Gtk::Window::POS_MOUSE
1049     dialog.transient_for = $main_window
1050
1051     dialog.show_all
1052
1053     while true
1054         dialog.run { |response|        
1055             if response == Gtk::Dialog::RESPONSE_OK
1056                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1057                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1058                     break
1059                 end
1060                 problem = false
1061                 label2entries = {}
1062                 $labels.values.each { |label| label2entries[label] = [] }
1063                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1064                 stuff.keys.each { |key|
1065                     if key.is_a?(Label) && stuff[key][:combo].active == 0
1066                         destination = stuff[key][:pathlabel].text
1067                         if destination[0] != ?/
1068                             show_popup(dialog, utf8(_("You have not selected a directory where to move %s.") % key.name))
1069                             problem = true
1070                             break
1071                         end
1072                         st = File.stat(destination)
1073                         if ! st.directory? || ! st.writable?
1074                             show_popup(dialog, utf8(_("Directory where to move %s is not valid or not writable.") % key.name))
1075                             problem = true
1076                             break
1077                         end
1078                         label2entries[key].each { |entry|
1079                             begin
1080                                 File.stat(File.join(destination, File.basename(entry.path)))
1081                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in '%s'.") % [ File.basename(entry.path), destination ]))
1082                                 problem = true
1083                                 break
1084                             rescue
1085                             end
1086                         }
1087                         if problem
1088                             break
1089                         end
1090                     end
1091                 }
1092                 if ! problem
1093                     begin
1094                         moved = 0
1095                         stuff.keys.each { |key|
1096                             if key.is_a?(Label) && stuff[key][:combo].active == 0
1097                                 destination = stuff[key][:pathlabel].text
1098                                 label2entries[key].each { |entry|
1099                                     File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1100                                     moved += 1
1101                                 }
1102                             end
1103                         }
1104                         removed = 0
1105                         if stuff['toremove'][:combo].active == 0
1106                             $allentries.each { |entry|
1107                                 if entry.removed
1108                                     File.delete(entry.path)
1109                                     removed += 1
1110                                 end
1111                             }
1112                         end
1113                     rescue
1114                         msg 1, "woops: #{$!}"
1115                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1116                     end
1117                     show_popup(dialog, utf8(_("Successfully moved %d files and removed %d files.") % [ moved, removed ]))
1118                     dialog.destroy
1119                     reset_all
1120                     return
1121                 end
1122
1123             else
1124                 dialog.destroy
1125                 return
1126             end
1127         }
1128     end
1129 end
1130
1131 def preferences
1132     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1133                              $main_window,
1134                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1135                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1136                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1137
1138     tooltips = Gtk::Tooltips.new
1139     
1140     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1141     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1142                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1143     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1144                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1145     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1146
1147     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1148                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1149     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1150                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1151     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1152
1153     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1154                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1155     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1156                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1157     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1158
1159     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1160                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1161     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1162                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1163     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1164                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1165                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1166     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1167     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1168     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1169                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1170                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1171     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1172     cache_memfree_radio.signal_connect('toggled') {
1173         if cache_memfree_radio.active?
1174             cache_memfree_label.sensitive = true
1175             cache_specify_label.sensitive = false
1176         else
1177             cache_specify_label.sensitive = true
1178             cache_memfree_label.sensitive = false
1179         end
1180     }
1181     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1182     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1183         cache_memfree_spin.value = $1.to_i
1184     else
1185         cache_specify_spin.value = $config['cache-memory-use'].to_i
1186     end
1187
1188     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1189                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1190     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1191     update_exif_orientation_check.active = $config['rotate-set-exif']
1192
1193     dialog.vbox.show_all
1194     dialog.run { |response|
1195         if response == Gtk::Dialog::RESPONSE_OK
1196             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1197             $config['browser'] = from_utf8(browser_entry.text)
1198             $config['preload-distance'] = preload_distance.value
1199             $config['rotate-set-exif'] = update_exif_orientation_check.active?
1200             if cache_memfree_radio.active?
1201                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1202             else
1203                 $config['cache-memory-use'] = cache_specify_spin.value
1204             end
1205             set_cache_memory_use_figure
1206         end
1207     }
1208     dialog.destroy
1209 end
1210
1211 def perform_undo
1212     if $undo_mb.sensitive?
1213         $redo_mb.sensitive = true
1214         if not more_undoes = UndoHandler.undo($statusbar)
1215             $undo_mb.sensitive = false
1216         end
1217     end
1218 end
1219
1220 def perform_redo
1221     if $redo_mb.sensitive?
1222         $undo_mb.sensitive = true
1223         if not more_redoes = UndoHandler.redo($statusbar)
1224             $redo_mb.sensitive = false
1225         end
1226     end
1227 end
1228
1229 def create_menubar    
1230     #- menu
1231     mb = Gtk::MenuBar.new
1232
1233     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1234     filesubmenu = Gtk::Menu.new
1235     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1236     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1237     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1238     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1239     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1240     filemenu.set_submenu(filesubmenu)
1241     mb.append(filemenu)
1242
1243     open.signal_connect('activate') { open_dir_popup }
1244     $execute.signal_connect('activate') { execute }
1245     quit.signal_connect('activate') { try_quit }
1246
1247     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1248     editsubmenu = Gtk::Menu.new
1249     editsubmenu.append($undo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1250     editsubmenu.append($redo_mb = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1251     editsubmenu.append(           Gtk::SeparatorMenuItem.new)
1252     editsubmenu.append(prefs    = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1253     editmenu.set_submenu(editsubmenu)
1254     mb.append(editmenu)
1255
1256     $undo_mb.signal_connect('activate') { perform_undo }
1257     $redo_mb.signal_connect('activate') { perform_redo }
1258     prefs.signal_connect('activate') { preferences }
1259     
1260     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1261     helpsubmenu = Gtk::Menu.new
1262     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1263     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1264     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1265     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1266     helpmenu.set_submenu(helpsubmenu)
1267     mb.append(helpmenu)
1268
1269     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1270     about.signal_connect('activate') { call_about }
1271
1272
1273     #- no toolbar, to save height
1274
1275     return mb
1276 end
1277
1278 def reset_labels
1279     for child in $labels_vbox.children
1280         $labels_vbox.remove(child)
1281     end
1282     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1283     $labels = {}
1284 end
1285
1286 def reset_thumbnails
1287     $allentries = []
1288     for child in $imagesline.children
1289         $imagesline.remove(child)
1290     end
1291 end
1292
1293 def create_main_window
1294
1295     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1296     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1297
1298     mb = create_menubar
1299
1300     main_vbox = Gtk::VBox.new(false, 0)
1301     main_vbox.pack_start(mb, false, false)
1302     mainview_hbox = Gtk::HBox.new
1303     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1304     reset_labels
1305     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1306     main_vbox.pack_start(mainview_hbox, true, true)
1307     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1308     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1309     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1310     main_vbox.pack_start($imagesline_sw, false, false)
1311     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1312
1313     $imagesline.set_size_request(-1, Entry.thumbnails_height + $imagesline_sw.hscrollbar.size_request[1])
1314
1315     $main_window = Gtk::Window.new
1316     $main_window.add(main_vbox)
1317     $main_window.signal_connect('delete-event') {
1318         try_quit({ :disallow_cancel => true })
1319     }
1320
1321     #- read/save size and position of window
1322     if $config['pos-x'] && $config['pos-y']
1323         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1324     else
1325         $main_window.window_position = Gtk::Window::POS_CENTER
1326     end
1327     msg 3, "size: #{$config['width']}x#{$config['height']}"
1328     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1329     $main_window.signal_connect('configure-event') {
1330         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1331         x, y = $main_window.window.root_origin
1332         width, height = $main_window.window.size
1333         $config['pos-x'] = x
1334         $config['pos-y'] = y
1335         $config['width'] = width
1336         $config['height'] = height
1337         false
1338     }
1339
1340     $protect_gtk_pending_calls = Mutex.new
1341     $gtk_pending_calls = []
1342     Gtk.timeout_add(50) {
1343         gtk_thread_flush
1344         true
1345     }
1346
1347     $main_window.show_all
1348 end
1349
1350
1351 handle_options
1352 Thread.abort_on_exception = true
1353 read_config
1354 Gtk.init
1355
1356
1357 create_main_window
1358 check_config
1359
1360 if ARGV[0]
1361     open_dir(ARGV[0])
1362 end
1363 Gtk.main
1364
1365 write_config