add unlabelled items
[booh] / bin / booh-classifier
1 #! /usr/bin/ruby
2 #
3 #                         *  BOOH  *
4 #
5 # A.k.a 'Best web-album Of the world, Or your money back, Humerus'.
6 #
7 # The acronyn sucks, however this is a tribute to Dragon Ball by
8 # Akira Toriyama, where the last enemy beaten by heroes of Dragon
9 # Ball is named "Boo". But there was already a free software project
10 # called Boo, so this one will be it "Booh". Or whatever.
11 #
12 #
13 # Copyright (c) 2004-2006 Guillaume Cottenceau <http://zarb.org/~gc/resource/gc_mail.png>
14 #
15 # This software may be freely redistributed under the terms of the GNU
16 # public license version 2.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
22 require 'getoptlong'
23 require 'tempfile'
24 require 'thread'
25
26 require 'gtk2'
27
28 require 'gettext'
29 include GetText
30 bindtextdomain("booh")
31
32 require 'rexml/document'
33 include REXML
34
35 require 'booh/booh-lib'
36 include Booh
37 require 'booh/UndoHandler'
38
39
40 #- options
41 $options = [
42     [ '--help',          '-h', GetoptLong::NO_ARGUMENT,       _("Get help message") ],
43
44     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
45 ]
46
47 def usage
48     puts _("Usage: %s [OPTION]...") % File.basename($0)
49     $options.each { |ary|
50         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
51     }
52 end
53
54 def handle_options
55     parser = GetoptLong.new
56     parser.set_options(*$options.collect { |ary| ary[0..2] })
57     begin
58         parser.each_option do |name, arg|
59             case name
60             when '--help'
61                 usage
62                 exit(0)
63
64             when '--verbose-level'
65                 $verbose_level = arg.to_i
66
67             end
68         end
69     rescue
70         puts $!
71         usage
72         exit(1)
73     end
74 end
75
76 def startup_memfree
77     if $startup_memfree.nil?
78         meminfo = IO.readlines('/proc/meminfo').join
79         meminfo =~ /MemFree:.*?(\d+)/ or return -1
80         memfree = $1
81         meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
82         meminfo =~ /Cached:.*?(\d+)/ and cached = $1
83         $startup_memfree = memfree.to_i + buffers.to_i + cached.to_i
84     end
85     return $startup_memfree
86 end
87
88 def set_cache_memory_use_figure
89     
90     if $config['cache-memory-use'] =~ /memfree_(\d+)/
91         $config['cache-memory-use-figure'] = startup_memfree*$1.to_f/100
92     else
93         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
94     end
95     msg 2, _("Cache memory used: %s kB") % $config['cache-memory-use-figure']
96 end
97
98 def read_config
99     $config = {}
100     $config_file = File.expand_path('~/.booh-classifier-rc')
101     if File.readable?($config_file)
102         $xmldoc = REXML::Document.new(File.new($config_file))
103         $xmldoc.root.elements.each { |element|
104             txt = element.get_text
105             if txt
106                 if txt.value =~ /~~~/
107                     $config[element.name] = txt.value.split(/~~~/)
108                 else
109                     $config[element.name] = txt.value
110                 end
111             elsif element.elements.size == 0
112                 $config[element.name] = ''
113             else
114                 $config[element.name] = {}
115                 element.each { |chld|
116                     txt = chld.get_text
117                     $config[element.name][chld.name] = txt ? txt.value : nil
118                 }
119             end
120         }
121     end
122     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
123     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
124     $config['preload-distance'] ||= '5'
125     $config['cache-memory-use'] ||= 'memfree_80%'
126 #    $config['rotate-set-exif'] ||= 'true'
127     set_cache_memory_use_figure
128 end
129
130 def check_config
131     missing = %w(transcode mencoder).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
132     if missing != []
133         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
134     end
135
136     viewer_binary = $config['video-viewer'].split.first
137     if viewer_binary && ! File.executable?(viewer_binary)
138         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
139 You should fix this in Edit/Preferences so that you can view videos.
140
141 Problem was: '%s' is not an executable file.
142 Hint: don't forget to specify the full path to the executable,
143 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
144     end
145     browser_binary = $config['browser'].split.first
146     if browser_binary && ! File.executable?(browser_binary)
147         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
148 You should fix this in Edit/Preferences so that you can open URLs.
149
150 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
151     end
152 end
153
154 def write_config
155     ios = File.open($config_file, "w")
156     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
157     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
158     $config.each_pair { |key, value|
159         elem = $xmldoc.root.add_element key
160         if value.is_a? Hash
161             $config[key].each_pair { |subkey, subvalue|
162                 subelem = elem.add_element subkey
163                 subelem.add_text subvalue.to_s
164             }
165         elsif value.is_a? Array
166             elem.add_text value.join('~~~')
167         else
168             if !value
169                 elem.remove
170             else
171                 elem.add_text value.to_s
172             end
173         end
174     }
175     $xmldoc.write(ios, 0)
176     ios.close
177 end
178
179 def save_undo(name, closure, *params)
180     UndoHandler.save_undo(name, closure, [ *params ])
181     $undo_mb.sensitive = true
182     $redo_mb.sensitive = false
183 end
184
185 def get_mem
186     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
187     msg 3, "RSS: #{$1}"
188     return $1.to_i
189 end
190
191 def show_mem(*txt)
192     txt.length > 0 and print txt[0]
193     msg 2, "RSS: #{get_mem}"
194 end
195
196 class Gdk::Color
197     def darker
198         color = dup
199         color.red = [ color.red - 10000, 0 ].max
200         color.green = [ color.green - 10000, 0 ].max
201         color.blue = [ color.blue - 10000, 0 ].max
202         return color
203     end
204     def lighter
205         color = dup
206         color.red = [ color.red + 10000, 65535 ].min
207         color.green = [ color.green + 10000, 65535 ].min
208         color.blue = [ color.blue + 10000, 65535 ].min
209         return color
210     end
211 end
212
213 $color_red = Gdk::Color.new(65535, 0, 0)
214 $colors = [ Gdk::Color.new(0, 65535, 0),
215             Gdk::Color.new(0, 0, 65535),
216             Gdk::Color.new(65535, 65535, 0),
217             Gdk::Color.new(0, 65535, 65535),
218             Gdk::Color.new(65535, 0, 65535) ]
219
220 class Label
221     attr_accessor :color, :name, :button
222     def initialize(name)
223         @name = name
224     end
225 end
226
227 class Entry
228     @@thumbnails_height = 64
229     @@max_height = nil
230     def Entry.thumbnails_height
231         return @@thumbnails_height
232     end
233
234     attr_accessor :path, :type, :angle, :button, :image, :alignment, :removed, :labeled
235
236     def initialize(path, type)
237         @path = path
238         @type = type
239         if @@max_height.nil?
240             @@max_height = $main_window.root_window.size[1]
241         end
242         @protect_cleanup = Mutex.new
243     end
244
245     def pixbuf_full
246         @protect_cleanup.synchronize {
247             if @pixbuf_full.nil?
248                 msg 3, ">>> pixbuf_full #{path}"
249                 load_into_pixbuf_full
250             end
251             return @pixbuf_full
252         }
253     end
254     def free_pixbuf_full
255         @protect_cleanup.synchronize {
256             if @pixbuf_full.nil?
257                 return false
258             else
259                 msg 3, ">>> free_pixbuf_full #{path}"
260                 @pixbuf_full = nil
261                 return true
262             end
263         }
264     end
265     def pixbuf_main(width, height)
266         @protect_cleanup.synchronize {
267             if @pixbuf_main.nil? || width != @width || height != @height
268                 msg 3, ">>> pixbuf_main #{path}"
269                 @width = width
270                 @height = height
271                 load_into_pixbuf_full  #- make sure it is loaded
272                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
273                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
274                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
275                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
276                     else
277                         @pixbuf_main = @pixbuf_full
278                     end
279                 else
280                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
281                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
282                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
283                     else
284                         @pixbuf_main = @pixbuf_full
285                     end
286                 end
287             end
288             return @pixbuf_main
289         }
290     end
291     def free_pixbuf_main
292         @protect_cleanup.synchronize {
293             if @pixbuf_main.nil?
294                 return false
295             else
296                 msg 3, ">>> free_pixbuf_main #{path}"
297                 @pixbuf_main = nil
298                 return true
299             end
300         }
301     end
302     def pixbuf_thumbnail
303         return @protect_cleanup.synchronize {
304             if @pixbuf_thumbnail.nil?
305                 msg 3, ">>> pixbuf_thumbnail #{path}"
306                 load_into_pixbuf_full  #- make sure it is loaded
307                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
308             end
309             return @pixbuf_thumbnail
310         }
311     end
312     def free_pixbuf_thumbnail
313         @protect_cleanup.synchronize {
314             if @pixbuf_thumbnail.nil?
315                 return false
316             else
317                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
318                 @pixbuf_thumbnail = nil
319                 return true
320             end
321         }
322     end
323
324     def outline_color
325         if removed
326             return $color_red
327         elsif labeled
328             return labeled.color
329         else
330             return nil
331         end
332     end
333
334     def show_bg
335         if outline_color.nil?
336             button.modify_bg(Gtk::StateType::NORMAL, nil)
337             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
338             button.modify_bg(Gtk::StateType::ACTIVE, nil)
339         else
340             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
341             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
342             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
343         end
344     end
345
346     def get_beautified_name
347         if type == 'image'
348             size = get_image_size(path)
349             return _("%s (%sx%s, %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
350                                              size[:x],
351                                              size[:y],
352                                              commify(file_size(path)/1024)]
353         else
354             return _("%s (video - %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
355                                              commify(file_size(path)/1024)]
356         end
357     end
358
359     private
360     def cleanup_dir(dir)
361         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
362         Dir.delete(dir)
363     end
364
365     def load_into_pixbuf_full
366         if @pixbuf_full.nil?
367             msg 3, ">>> load_into_pixbuf_full #{path}"
368             if @type == 'video'
369                 tmp = Tempfile.new("boohclassifiertemp")
370                 tmp.close!
371                 Dir.mkdir(dest_dir = tmp.path)
372                 orig_base = File.basename(path)
373                 if ! gen_video_thumbnail(path, dest_dir, orig_base, false, 0)
374                     cleanup_dir(dest_dir)
375                     return
376                 end
377                 image_path = "#{dest_dir}/#{orig_base}.jpg000000.jpg"
378             else
379                 image_path = @path
380             end
381             begin
382                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
383             rescue Gdk::PixbufError
384                 msg 0, "Cannot load #{image_path}: #{$!}"
385                 return
386             end
387             if @pixbuf_full
388                 if @angle.nil?
389                     if @type == 'image'
390                         @angle = guess_rotate(image_path)
391                     else
392                         @angle = 0
393                     end
394                 end
395                 if @angle != 0
396                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
397                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
398                 end
399                 if @pixbuf_full.height > @@max_height
400                     #- save a lot of memory, don't store in actual full size
401                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
402                 end
403             end
404             if @type == 'video'
405                 cleanup_dir(dest_dir)
406             end
407         end
408     end
409
410     def to_s
411         @path
412     end
413 end
414
415 class MainView < Gtk::DrawingArea
416
417     @@borders_thickness = 5
418     @@borders_length = 25
419
420     def MainView.get_usable_width(available_width)
421         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
422     end
423
424     def MainView.get_usable_height(available_height)
425         return available_height - @@borders_thickness * 2
426     end
427     
428     def initialize
429         super()
430         signal_connect('expose-event') { draw }
431         signal_connect('configure-event') { update_shown; GC.start }
432         signal_connect('realize') {
433             @preloader = Thread.new {
434                 #- background preloading
435                 while true
436                     msg 3, "background main preloading triggered..."
437                     if ! @entry.nil?
438                         index = $allentries.index(@entry)
439                         w, h = window.size
440                         w = MainView.get_usable_width(w)
441                         h = MainView.get_usable_height(h)
442                         for j in 1 .. $config['preload-distance'].to_i
443                             i = index + j
444                             if i < $allentries.size
445                                 $allentries[i].pixbuf_main(w, h)
446                             end
447                             i = index - j
448                             if i >= 0
449                                 $allentries[i].pixbuf_main(w, h)
450                             end
451                             GC.start
452                             mem = get_mem
453                             if mem > $config['cache-memory-use-figure']
454                                 msg 3, "too much RSS, stopping main preloading"
455                                 break
456                             end
457                         end
458                         check_memory_free_cache_if_needed
459                     end
460                     Thread.stop
461                 end
462             }
463             @preloader.priority = -2
464         }
465     end
466
467     def set_shown_entry(entry)
468         if ! entry.nil? && entry == @entry
469             return
470         end
471         if ! entry.nil?
472             if ! entry.button
473                 #- not loaded yet
474                 return
475             else
476                 entry.button.grab_focus
477             end
478         end
479         @entry = entry
480         redraw        
481         @preloader.run
482     end
483
484     def get_shown_entry
485         return @entry
486     end
487
488     def show_next_entry(entry)
489         index = $allentries.index(entry) + 1
490         if index < $allentries.size
491             set_shown_entry($allentries[index])
492         end
493     end
494
495     def redraw
496         update_shown
497         w, h = window.size
498         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
499         window.clear
500         draw
501         window.end_paint
502     end
503
504     def update_shown
505         if @entry
506             width, height = window.size 
507             usable_width = MainView.get_usable_width(width)
508             usable_height = MainView.get_usable_height(height)
509             @pixbuf = @entry.pixbuf_main(usable_width, usable_height)
510             @xpos = (width - @pixbuf.width)/2
511             @ypos = (height - @pixbuf.height)/2
512             @preloader.run
513         else
514             @pixbuf = nil
515         end
516     end
517
518     def draw
519         if @pixbuf
520             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
521             if @entry && @entry.type == 'video'
522                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
523             end
524             if ! @entry.outline_color.nil?
525                 gc = Gdk::GC.new(window)
526                 colormap.alloc_color(@entry.outline_color, false, true)
527                 gc.set_foreground(@entry.outline_color)
528                 if @entry && @entry.type == 'video'
529                     xleft = @xpos - $videoborder_pixbuf.width
530                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
531                 else
532                     xleft = @xpos
533                     xright = @xpos + @pixbuf.width
534                 end
535                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
536                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
537                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
538                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
539                                                [xleft - @@borders_thickness, @ypos - 1],
540                                                [xleft - 1, @ypos - 1],
541                                                [xleft - 1, @ypos + @pixbuf.height + 1],
542                                                [xright + 1, @ypos + @pixbuf.height + 1],
543                                                [xright + 1, @ypos - 1],
544                                                [xleft - @@borders_thickness, @ypos - 1]])
545             end
546         end
547     end
548 end
549
550 def check_memory_free_cache_if_needed
551     GC.start
552     mem = get_mem
553     i = $allentries.index($mainview.get_shown_entry)
554     msg 3, "mem: #{mem} index: #{i}"
555     return if i.nil?
556     ($allentries.size - 1).downto(1) { |j|
557         if mem < $config['cache-memory-use-figure'] * 2 / 3
558             break
559         end
560         index = i + j
561         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
562         freedsomething = false
563         if i + j < $allentries.size
564             freedsomething |= $allentries[i+j].free_pixbuf_full
565         end
566         if i - j > 0
567             freedsomething |= $allentries[i-j].free_pixbuf_full
568         end
569         if freedsomething
570             GC.start
571             mem = get_mem
572             msg 3, "\tmem now: #{mem}"
573         end
574     }
575 end
576
577 def autoscroll_if_needed(button)
578     xpos_left = button.allocation.x
579     xpos_right = button.allocation.x + button.allocation.width
580     hadj = $imagesline_sw.hadjustment
581     current_minx_visible = hadj.value
582     current_maxx_visible = hadj.value + hadj.page_size
583     if xpos_left < current_minx_visible
584         #- autoscroll left
585         newval = hadj.value - (current_minx_visible - xpos_left)
586         hadj.value = newval
587         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
588     elsif xpos_right > current_maxx_visible
589         #- autoscroll right
590         newval = hadj.value + (xpos_right - current_maxx_visible)
591         if newval > hadj.upper - hadj.page_size
592             newval = hadj.upper - hadj.page_size
593         end
594         hadj.value = newval
595         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
596     end
597 end
598
599 def show_popup(parent, msg, *options)
600     dialog = Gtk::Dialog.new
601     if options[0]
602         options = options[0]
603     else
604         options = {}
605     end
606     if options[:title]
607         dialog.title = options[:title]
608     else
609         dialog.title = utf8(_("Booh message"))
610     end
611     lbl = Gtk::Label.new
612     if options[:nomarkup]
613         lbl.text = msg
614     else
615         lbl.markup = msg
616     end
617     if options[:centered]
618         lbl.set_justify(Gtk::Justification::CENTER)
619     end
620     if options[:selectable]
621         lbl.selectable = true
622     end
623     if options[:topwidget]
624         dialog.vbox.add(options[0][:topwidget])
625     end
626     if options[:scrolled]
627         sw = Gtk::ScrolledWindow.new(nil, nil)
628         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
629         sw.add_with_viewport(lbl)
630         dialog.vbox.add(sw)
631         dialog.set_default_size(500, 600)
632     else
633         dialog.vbox.add(lbl)
634         dialog.set_default_size(200, 120)
635     end
636     if options[:bottomwidget]
637         dialog.vbox.add(options[:bottomwidget])
638     end
639     if options[:okcancel]
640         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
641     end
642     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
643
644     if options[:pos_centered]
645         dialog.window_position = Gtk::Window::POS_CENTER
646     else
647         dialog.window_position = Gtk::Window::POS_MOUSE
648     end
649
650     if options[:linkurl]
651         linkbut = Gtk::Button.new('')
652         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
653         linkbut.signal_connect('clicked') {
654             open_url(options[0][:linkurl] + '/index.html')
655             dialog.response(Gtk::Dialog::RESPONSE_OK)
656             set_mousecursor_normal
657         }
658         linkbut.relief = Gtk::RELIEF_NONE
659         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
660         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
661         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
662     end
663
664     dialog.show_all
665
666     if options[:stuff_connector]
667         options[:stuff_connector].call({ :dialog => dialog })
668     end
669                                         
670     if !options[:not_transient]
671         dialog.transient_for = parent
672         dialog.run { |response|
673             if options[:data_getter]
674                 options[:data_getter].call
675             end
676             dialog.destroy
677             if options[:okcancel]
678                 return response == Gtk::Dialog::RESPONSE_OK
679             end
680         }
681     else
682         dialog.signal_connect('response') { dialog.destroy }
683     end
684 end
685
686 def video_view(entry)
687     cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
688     msg 2, cmd
689     system(cmd)
690 end
691
692 def thumbnail_keypressed(entry, event)
693     if event.state & Gdk::Window::MOD1_MASK != 0
694         #- ALT pressed: Alt-Left and Alft-Right rotate
695         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
696             if event.keyval == Gdk::Keyval::GDK_Left
697                 entry.angle = (entry.angle - 90) % 360
698             else
699                 entry.angle = (entry.angle + 90) % 360
700             end
701             entry.free_pixbuf_full
702             entry.free_pixbuf_main
703             entry.free_pixbuf_thumbnail
704             $mainview.redraw
705             entry.image.pixbuf = entry.pixbuf_thumbnail
706         end
707
708     elsif event.state & Gdk::Window::CONTROL_MASK != 0
709         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
710         if event.keyval == Gdk::Keyval::GDK_z
711             perform_undo
712         end
713         if event.keyval == Gdk::Keyval::GDK_r
714             perform_redo
715         end
716
717     else
718         removed_before = entry.removed
719         label_before = entry.labeled
720
721         if event.keyval == Gdk::Keyval::GDK_Delete
722             entry.removed = true
723             entry.labeled = nil
724             entry.show_bg
725             $mainview.show_next_entry(entry)
726             update_visibility(entry)
727
728             save_undo(_("set for removal"),
729                       proc {
730                           entry.removed = removed_before
731                           entry.labeled = label_before
732                           entry.show_bg
733                           update_visibility(entry)
734                           if entry.button.visible?
735                               $mainview.set_shown_entry(entry)
736                           end
737                           proc {
738                               entry.removed = true
739                               entry.labeled = nil
740                               entry.show_bg
741                               update_visibility(entry)
742                               if entry.button.visible?
743                                   $mainview.set_shown_entry(entry)
744                               end
745                           }
746                       })
747
748         elsif event.keyval == Gdk::Keyval::GDK_space
749             if entry.labeled
750                 msg = _("Cleared label")
751             elsif entry.removed
752                 msg = _("Cleared set for removal")
753             end
754             entry.removed = false
755             entry.labeled = nil
756             entry.show_bg
757             $mainview.show_next_entry(entry)
758
759             save_undo(msg,
760                       proc {
761                           entry.removed = removed_before
762                           entry.labeled = label_before
763                           entry.show_bg
764                           $mainview.set_shown_entry(entry)
765                           proc {
766                               entry.removed = false
767                               entry.labeled = nil
768                               entry.show_bg
769                               $mainview.set_shown_entry(entry)
770                           }
771                       })
772
773         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
774             video_view(entry)
775
776         else
777             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
778             if char =~ /^[a-zA-z0-9]$/
779                 label = $labels[char]
780                 
781                 if label.nil?
782                     vb = Gtk::VBox.new(false, 0)
783                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
784                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
785                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
786                     bt.signal_connect('color-set') { color = bt.color }
787                     text = nil
788                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
789                         while $labels.has_key?(entry.text[0,1])
790                             entry.text = entry.text.sub(/./, '')
791                         end
792                     }
793                     if show_popup($main_window,
794                                   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,
795                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
796                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
797                                                                        entry.position = -1
798                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
799                         if text.length > 0
800                             char = text[0,1]  #- in case it changed
801                             label = Label.new(text)
802                             label.color = color
803                             $labels[char] = label
804                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
805                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
806                             label.button.active = true
807                             label.button.signal_connect('toggled') { update_all_visibilities }
808                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
809                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
810                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
811                         end
812                     end
813
814                 else
815                     entry.removed = false
816                     entry.labeled = label
817                     entry.show_bg
818                     $mainview.show_next_entry(entry)
819                     update_visibility(entry)
820
821                     save_undo(_("set label"),
822                               proc {
823                                   entry.removed = removed_before
824                                   entry.labeled = label_before
825                                   entry.show_bg
826                                   update_visibility(entry)
827                                   if entry.button.visible?
828                                       $mainview.set_shown_entry(entry)
829                                   end
830                                   proc {
831                                       entry.removed = false
832                                       entry.labeled = label
833                                       entry.show_bg
834                                       update_visibility(entry)
835                                       if entry.button.visible?
836                                           $mainview.set_shown_entry(entry)
837                                       end
838                                   }
839                               })
840                 end
841             end
842         end
843     end
844 end
845
846 def sb_msg(msg)
847     $statusbar.pop(0)
848     if msg
849         $statusbar.push(0, utf8(msg))
850     end
851 end
852
853 def real_show_entry(entry, tooltips, grab_focus)
854     #- for scoping the actual reference to 'entry'
855     gtk_thread_protect(proc {
856         msg 3, "using entry #{entry}"
857         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
858         if entry.type == 'video'
859             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
860                                                              pack_start(entry.image).
861                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
862             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
863             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
864         else
865             entry.button = Gtk::Button.new.set_image(entry.image)
866         end
867         tooltips.set_tip(entry.button, entry.get_beautified_name, nil)
868         $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
869         entry.button.signal_connect('clicked') {
870             if (last_shown = $mainview.get_shown_entry) != entry
871                 $mainview.set_shown_entry(entry)
872                 entry.alignment.set(0.5, 0, 0, 0)
873                 sb_msg(_("Selected %s") % entry.get_beautified_name)
874                 last_shown.nil? or last_shown.alignment.set(0.5, 1, 0, 0)
875             end
876         }
877         entry.button.signal_connect('button-press-event') { |w, event|
878             if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
879                 video_view(entry)
880             end
881         }
882         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
883         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
884         if grab_focus
885             entry.button.grab_focus
886         end
887         update_visibility(entry)
888     })
889 end
890
891 def show_entries
892     $images_loader = Thread.new {
893         t1 = Time.now
894         sb_msg(_("Loading images..."))
895         tooltips = Gtk::Tooltips.new
896         counter = 0
897         toremove = []
898         grab_focus = true
899         i = 0
900         total_size = 0
901         while i < $allentries.size
902             entry = $allentries[i]
903             if entry.pixbuf_full
904                 total_size += file_size(entry.path)
905                 entry.pixbuf_thumbnail
906                 real_show_entry(entry, tooltips, grab_focus)
907                 grab_focus = false
908                 if i % 4 == 0
909                     check_memory_free_cache_if_needed
910                 end
911                 counter += 1
912                 i = i + 1
913
914             else
915                 $allentries.delete_at(i)
916             end
917         end
918         check_memory_free_cache_if_needed
919         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
920     }
921     $images_loader.priority = -1
922 end
923
924 def reset_all
925     $images_loader and $images_loader.kill
926     reset_labels
927     reset_thumbnails
928     $mainview.set_shown_entry(nil)
929     sb_msg(nil)
930 end
931
932 def open_dir(path)
933     #- remove visual stuff, so that user will see something is happening
934     reset_all
935     sb_msg(_("Scanning source directory..."))
936
937     path = File.expand_path(path.sub(%r|/$|, ''))
938     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
939     #- validate first
940     examined_dirs.each { |dir|
941         if dir =~ /'/
942             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
943         end
944         Dir.entries(dir).each { |file|
945             if file =~ /['"\[\]]/
946                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
947             end
948         }
949     }
950
951     #- scan for populate second
952     examined_dirs.each { |dir|
953         if File.basename(dir) =~ /^\./
954             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
955             next
956         end
957         Dir.entries(dir).each { |file|
958             type = entry2type(file)
959            if type
960 #&& $allentries.size < 120
961                 $allentries << Entry.new(File.join(dir, file), type)
962             end
963         }
964     }
965     $workingdir = path
966     show_entries
967     $execute.sensitive = true
968     return nil
969 end
970
971 def open_dir_popup
972     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
973                                     nil,
974                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
975                                     nil,
976                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
977     fc.transient_for = $main_window
978     if $workingdir
979         fc.current_folder = $workingdir
980     end
981     ok = false
982     while !ok
983         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
984             msg = open_dir(fc.filename)
985             if msg
986                 show_popup(fc, msg)
987                 ok = false
988             else
989                 ok = true
990             end
991         else
992             ok = true
993         end
994     end
995     fc.destroy
996 end
997
998 def gtk_thread_protect(proc, *params)
999     if Thread.current == Thread.main
1000         proc.call(*params)
1001     else
1002         $protect_gtk_pending_calls.synchronize {
1003             $gtk_pending_calls << [ proc, params ]
1004         }
1005     end
1006 end
1007
1008 def gtk_thread_flush
1009     $protect_gtk_pending_calls.synchronize {
1010         if $gtk_pending_calls.size > 0
1011             elem = $gtk_pending_calls.shift
1012             elem[0].call(*elem[1])
1013         end
1014     }
1015 end
1016
1017 def try_quit(*options)
1018     Gtk.main_quit
1019 end
1020
1021 def execute
1022     dialog = Gtk::Dialog.new
1023     dialog.title = utf8(_("Booh message"))
1024
1025     vb1 = Gtk::VBox.new(false, 5)
1026     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!")))
1027     vb1.pack_start(label, false, false)
1028
1029     table = Gtk::Table.new(0, 0, false)
1030     table.set_row_spacings(5)
1031     table.set_column_spacings(5)
1032     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)
1033     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)
1034     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)
1035     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)
1036     add_row = proc { |row, name, color, truthproc, normal|
1037         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)),
1038                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1039         counter = 0
1040         examples = Gtk::HBox.new(false, 5)
1041         $allentries.each { |entry|
1042             if truthproc.call(entry)
1043                 counter += 1
1044                 if counter < 4
1045                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1046                     if entry.type == 'video'
1047                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1048                                                   pack_start(thumbnail).
1049                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1050                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1051                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1052                     end
1053                     examples.pack_start(thumbnail, false, false)
1054                 elsif counter == 4
1055                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1056                 end
1057             end
1058         }
1059         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1060         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1061
1062         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1063         iter = combostore.append
1064         if normal
1065             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1066             iter[1] = utf8(_("Move to:"))
1067             iter = combostore.append
1068             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1069             iter[1] = utf8(_("Copy to:"))
1070         else
1071             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1072             iter[1] = utf8(_("Permanently remove"))
1073         end
1074         iter = combostore.append
1075         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1076         iter[1] = utf8(_("Do nothing"))
1077         combo = Gtk::ComboBox.new(combostore)
1078         combo.active = 0
1079         renderer = Gtk::CellRendererPixbuf.new
1080         combo.pack_start(renderer, false)
1081         combo.set_attributes(renderer, :pixbuf => 0)
1082         renderer = Gtk::CellRendererText.new
1083         combo.pack_start(renderer, true)
1084         combo.set_attributes(renderer, :text => 1)
1085
1086         if normal
1087             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1088             lastpath = $workingdir
1089             pathbutton.signal_connect('clicked') {
1090                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1091                                                 nil,
1092                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1093                                                 nil,
1094                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1095                 fc.transient_for = dialog
1096                 fc.current_folder = lastpath
1097                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1098                     pathlabel.text = fc.filename
1099                 end
1100                 lastpath = fc.filename
1101                 fc.destroy
1102             }
1103             combo.signal_connect('changed') {
1104                 pathbutton.sensitive = combo.active <= 1
1105             }
1106             vb = Gtk::VBox.new(false, 5)
1107             vb.pack_start(combo, false, false)
1108             vb.pack_start(pathbutton, false, false)
1109             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1110             { :combo => combo, :pathlabel => pathlabel }
1111         else
1112             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1113             { :combo => combo }
1114         end
1115     }
1116     stuff = {}
1117     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1118     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1119     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1120
1121     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1122     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1123     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 ]))
1124     if toremove_amount > 0
1125         vb1.pack_start(check_removal, false, false)
1126         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1127             check_removal.sensitive = widget.active == 0
1128         }
1129     end
1130
1131     dialog.vbox.add(vb1)
1132
1133     dialog.set_default_size(800, 600)
1134     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1135     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1136     dialog.window_position = Gtk::Window::POS_MOUSE
1137     dialog.transient_for = $main_window
1138
1139     dialog.show_all
1140
1141     while true
1142         dialog.run { |response|        
1143             if response == Gtk::Dialog::RESPONSE_OK
1144                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1145                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1146                     break
1147                 end
1148                 problem = false
1149                 label2entries = {}
1150                 $labels.values.each { |label| label2entries[label] = [] }
1151                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1152                 stuff.keys.each { |key|
1153                     if key.is_a?(Label) && stuff[key][:combo].active <= 1
1154                         destination = stuff[key][:pathlabel].text
1155                         if destination[0] != ?/
1156                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1157                             problem = true
1158                             break
1159                         end
1160                         begin
1161                             Dir.mkdir(destination)
1162                         rescue Errno::EEXIST
1163                         end
1164                         begin
1165                             st = File.stat(destination)
1166                         rescue
1167                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1168                             problem = true
1169                             break
1170                         end
1171                         if ! st.directory? || ! st.writable?
1172                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1173                             problem = true
1174                             break
1175                         end
1176                         label2entries[key].each { |entry|
1177                             begin
1178                                 File.stat(File.join(destination, File.basename(entry.path)))
1179                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1180                                 problem = true
1181                                 break
1182                             rescue
1183                             end
1184                         }
1185                         if problem
1186                             break
1187                         end
1188                     end
1189                 }
1190                 if ! problem
1191                     begin
1192                         moved = 0
1193                         copied = 0
1194                         stuff.keys.each { |key|
1195                             if key.is_a?(Label) && stuff[key][:combo].active <= 1
1196                                 destination = stuff[key][:pathlabel].text
1197                                 label2entries[key].each { |entry|
1198                                     if stuff[key][:combo].active == 0
1199                                         File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1200                                         moved += 1
1201                                     elsif stuff[key][:combo].active == 1
1202                                         system("cp -dp '#{entry.path}' '#{destination}'")
1203                                         copied += 1
1204                                     end
1205                                 }
1206                             end
1207                         }
1208                         removed = 0
1209                         if stuff['toremove'][:combo].active == 0
1210                             $allentries.each { |entry|
1211                                 if entry.removed
1212                                     File.delete(entry.path)
1213                                     removed += 1
1214                                 end
1215                             }
1216                         end
1217                     rescue
1218                         msg 1, "woops: #{$!}"
1219                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1220                     end
1221                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1222                     dialog.destroy
1223                     reset_all
1224                     return
1225                 end
1226
1227             else
1228                 dialog.destroy
1229                 return
1230             end
1231         }
1232     end
1233 end
1234
1235 def update_visibility(entry)
1236     if ! entry.button
1237         #- not yet loaded
1238         return
1239     end
1240     if entry.labeled
1241         if entry.labeled.button.active?
1242             entry.button.show
1243         else
1244             entry.button.hide
1245         end
1246     elsif entry.removed
1247         if $toremove_button.active?
1248             entry.button.show
1249         else
1250             entry.button.hide
1251         end
1252     else
1253         if $unlabelled_button.active?
1254             entry.button.show
1255         else
1256             entry.button.hide
1257         end
1258     end
1259 end
1260         
1261 def update_all_visibilities
1262     $allentries.each { |entry|
1263         update_visibility(entry)
1264     }
1265     shown = $mainview.get_shown_entry
1266     while shown.button && ! shown.button.visible? && shown != $allentries.last
1267         shown = $allentries[$allentries.index(shown) + 1]
1268     end 
1269     if shown.button && shown.button.visible?
1270         shown.button.grab_focus
1271         return
1272     end
1273     $allentries.reverse.each { |entry|
1274         if entry.button && entry.button.visible?
1275             entry.button.grab_focus
1276             return
1277         end
1278     }
1279 end
1280
1281 def preferences
1282     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1283                              $main_window,
1284                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1285                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1286                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1287
1288     tooltips = Gtk::Tooltips.new
1289     
1290     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1291     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1292                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1293     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1294                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1295     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1296
1297     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1298                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1299     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1300                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1301     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1302
1303     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1304                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1305     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1306                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1307     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1308
1309     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1310                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1311     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1312                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1313     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1314                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1315                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1316     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1317     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1318     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1319                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1320                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1321     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1322     cache_memfree_radio.signal_connect('toggled') {
1323         if cache_memfree_radio.active?
1324             cache_memfree_label.sensitive = true
1325             cache_specify_label.sensitive = false
1326         else
1327             cache_specify_label.sensitive = true
1328             cache_memfree_label.sensitive = false
1329         end
1330     }
1331     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1332     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1333         cache_memfree_spin.value = $1.to_i
1334     else
1335         cache_specify_spin.value = $config['cache-memory-use'].to_i
1336     end
1337
1338 #    tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1339 #               0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1340 #    tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1341 #    update_exif_orientation_check.active = $config['rotate-set-exif']
1342
1343     dialog.vbox.show_all
1344     dialog.run { |response|
1345         if response == Gtk::Dialog::RESPONSE_OK
1346             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1347             $config['browser'] = from_utf8(browser_entry.text)
1348             $config['preload-distance'] = preload_distance.value
1349 #            $config['rotate-set-exif'] = update_exif_orientation_check.active?
1350             if cache_memfree_radio.active?
1351                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1352             else
1353                 $config['cache-memory-use'] = cache_specify_spin.value
1354             end
1355             set_cache_memory_use_figure
1356         end
1357     }
1358     dialog.destroy
1359 end
1360
1361 def perform_undo
1362     if $undo_mb.sensitive?
1363         $redo_mb.sensitive = true
1364         if not more_undoes = UndoHandler.undo($statusbar)
1365             $undo_mb.sensitive = false
1366         end
1367     end
1368 end
1369
1370 def perform_redo
1371     if $redo_mb.sensitive?
1372         $undo_mb.sensitive = true
1373         if not more_redoes = UndoHandler.redo($statusbar)
1374             $redo_mb.sensitive = false
1375         end
1376     end
1377 end
1378
1379 def create_menubar    
1380     #- menu
1381     mb = Gtk::MenuBar.new
1382
1383     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1384     filesubmenu = Gtk::Menu.new
1385     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1386     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1387     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1388     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1389     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1390     filemenu.set_submenu(filesubmenu)
1391     mb.append(filemenu)
1392
1393     open.signal_connect('activate') { open_dir_popup }
1394     $execute.signal_connect('activate') { execute }
1395     quit.signal_connect('activate') { try_quit }
1396
1397     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1398     editsubmenu = Gtk::Menu.new
1399     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1400     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1401     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1402     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1403     editmenu.set_submenu(editsubmenu)
1404     mb.append(editmenu)
1405
1406     $undo_mb.signal_connect('activate') { perform_undo }
1407     $redo_mb.signal_connect('activate') { perform_redo }
1408     prefs.signal_connect('activate') { preferences }
1409     
1410     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1411     helpsubmenu = Gtk::Menu.new
1412     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1413     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1414     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1415     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1416     helpmenu.set_submenu(helpsubmenu)
1417     mb.append(helpmenu)
1418
1419     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1420     about.signal_connect('activate') { call_about }
1421
1422
1423     #- no toolbar, to save height
1424
1425     return mb
1426 end
1427
1428 def reset_labels
1429     for child in $labels_vbox.children
1430         $labels_vbox.remove(child)
1431     end
1432     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1433     $labels = {}
1434     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1435     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1436     $unlabelled_button.active = true
1437     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1438     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1439     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1440     $toremove_button.active = true
1441     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1442     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1443     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1444     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1445 end
1446
1447 def reset_thumbnails
1448     $allentries = []
1449     for child in $imagesline.children
1450         $imagesline.remove(child)
1451     end
1452 end
1453
1454 def create_main_window
1455
1456     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1457     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1458
1459     mb = create_menubar
1460
1461     main_vbox = Gtk::VBox.new(false, 0)
1462     main_vbox.pack_start(mb, false, false)
1463     mainview_hbox = Gtk::HBox.new
1464     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1465     reset_labels
1466     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1467     main_vbox.pack_start(mainview_hbox, true, true)
1468     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1469     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1470     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1471     main_vbox.pack_start($imagesline_sw, false, false)
1472     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1473
1474     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + 15)
1475
1476     $main_window = Gtk::Window.new
1477     $main_window.add(main_vbox)
1478     $main_window.signal_connect('delete-event') {
1479         try_quit({ :disallow_cancel => true })
1480     }
1481
1482     #- read/save size and position of window
1483     if $config['pos-x'] && $config['pos-y']
1484         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1485     else
1486         $main_window.window_position = Gtk::Window::POS_CENTER
1487     end
1488     msg 3, "size: #{$config['width']}x#{$config['height']}"
1489     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1490     $main_window.signal_connect('configure-event') {
1491         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1492         x, y = $main_window.window.root_origin
1493         width, height = $main_window.window.size
1494         $config['pos-x'] = x
1495         $config['pos-y'] = y
1496         $config['width'] = width
1497         $config['height'] = height
1498         false
1499     }
1500
1501     $protect_gtk_pending_calls = Mutex.new
1502     $gtk_pending_calls = []
1503     Gtk.timeout_add(50) {
1504         gtk_thread_flush
1505         true
1506     }
1507
1508     $main_window.show_all
1509 end
1510
1511
1512 handle_options
1513 Thread.abort_on_exception = true
1514 read_config
1515 Gtk.init
1516
1517
1518 create_main_window
1519 check_config
1520
1521 if ARGV[0]
1522     open_dir(ARGV[0])
1523 end
1524 Gtk.main
1525
1526 write_config