new gen_video_thumbnail because of transcode->mplayer switch
[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 require 'booh/libadds'
28
29 require 'gettext'
30 include GetText
31 bindtextdomain("booh")
32
33 require 'rexml/document'
34 include REXML
35
36 require 'booh/booh-lib'
37 include Booh
38 require 'booh/UndoHandler'
39
40
41 #- options
42 $options = [
43     [ '--help',          '-h', GetoptLong::NO_ARGUMENT,       _("Get help message") ],
44
45     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
46     [ '--sort-by-exif-date', '-s', GetoptLong::NO_ARGUMENT, _("Sort entries by EXIF date") ],
47 ]
48
49 def usage
50     puts _("Usage: %s [OPTION]...") % File.basename($0)
51     $options.each { |ary|
52         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
53     }
54 end
55
56 def handle_options
57     parser = GetoptLong.new
58     parser.set_options(*$options.collect { |ary| ary[0..2] })
59     begin
60         parser.each_option do |name, arg|
61             case name
62             when '--help'
63                 usage
64                 exit(0)
65
66             when '--verbose-level'
67                 $verbose_level = arg.to_i
68
69             when '--sort-by-exif-date'
70                 $sort_by_exif_date = true
71
72             end
73         end
74     rescue
75         puts $!
76         usage
77         exit(1)
78     end
79 end
80
81 def startup_memfree
82     if $startup_memfree.nil?
83         meminfo = IO.readlines('/proc/meminfo').join
84         meminfo =~ /MemFree:.*?(\d+)/ or return -1
85         memfree = $1
86         meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
87         meminfo =~ /Cached:.*?(\d+)/ and cached = $1
88         $startup_memfree = memfree.to_i + buffers.to_i + cached.to_i
89     end
90     return $startup_memfree
91 end
92
93 def set_cache_memory_use_figure
94     
95     if $config['cache-memory-use'] =~ /memfree_(\d+)/
96         $config['cache-memory-use-figure'] = startup_memfree*$1.to_f/100
97     else
98         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
99     end
100     msg 2, _("Cache memory used: %s kB") % $config['cache-memory-use-figure']
101 end
102
103 def read_config
104     $config = {}
105     $config_file = File.expand_path('~/.booh-classifier-rc')
106     if File.readable?($config_file)
107         $xmldoc = REXML::Document.new(File.new($config_file))
108         $xmldoc.root.elements.each { |element|
109             txt = element.get_text
110             if txt
111                 if txt.value =~ /~~~/
112                     $config[element.name] = txt.value.split(/~~~/)
113                 else
114                     $config[element.name] = txt.value
115                 end
116             elsif element.elements.size == 0
117                 $config[element.name] = ''
118             else
119                 $config[element.name] = {}
120                 element.each { |chld|
121                     txt = chld.get_text
122                     $config[element.name][chld.name] = txt ? txt.value : nil
123                 }
124             end
125         }
126     end
127     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
128     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
129     $config['preload-distance'] ||= '5'
130     $config['cache-memory-use'] ||= 'memfree_80%'
131     $config['rotate-set-exif'] ||= 'true'
132     set_cache_memory_use_figure
133 end
134
135 def check_config
136     missing = %w(mplayer).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
137     if missing != []
138         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
139     end
140
141     viewer_binary = $config['video-viewer'].split.first
142     if viewer_binary && ! File.executable?(viewer_binary)
143         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
144 You should fix this in Edit/Preferences so that you can view videos.
145
146 Problem was: '%s' is not an executable file.
147 Hint: don't forget to specify the full path to the executable,
148 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
149     end
150     browser_binary = $config['browser'].split.first
151     if browser_binary && ! File.executable?(browser_binary)
152         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
153 You should fix this in Edit/Preferences so that you can open URLs.
154
155 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
156     end
157 end
158
159 def write_config
160     ios = File.open($config_file, "w")
161     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
162     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
163     $config.each_pair { |key, value|
164         elem = $xmldoc.root.add_element key
165         if value.is_a? Hash
166             $config[key].each_pair { |subkey, subvalue|
167                 subelem = elem.add_element subkey
168                 subelem.add_text subvalue.to_s
169             }
170         elsif value.is_a? Array
171             elem.add_text value.join('~~~')
172         else
173             if !value
174                 elem.remove
175             else
176                 elem.add_text value.to_s
177             end
178         end
179     }
180     $xmldoc.write(ios, 0)
181     ios.close
182 end
183
184 def save_undo(name, closure, *params)
185     UndoHandler.save_undo(name, closure, [ *params ])
186     $undo_mb.sensitive = true
187     $redo_mb.sensitive = false
188 end
189
190 def get_mem
191     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
192     msg 3, "RSS: #{$1}"
193     return $1.to_i
194 end
195
196 def show_mem(*txt)
197     txt.length > 0 and print txt[0]
198     msg 2, "RSS: #{get_mem}"
199 end
200
201 class Gdk::Color
202     def darker
203         color = dup
204         color.red = [ color.red - 10000, 0 ].max
205         color.green = [ color.green - 10000, 0 ].max
206         color.blue = [ color.blue - 10000, 0 ].max
207         return color
208     end
209     def lighter
210         color = dup
211         color.red = [ color.red + 10000, 65535 ].min
212         color.green = [ color.green + 10000, 65535 ].min
213         color.blue = [ color.blue + 10000, 65535 ].min
214         return color
215     end
216 end
217
218 $color_red = Gdk::Color.new(65535, 0, 0)
219 $colors = [ Gdk::Color.new(0, 65535, 0),
220             Gdk::Color.new(0, 0, 65535),
221             Gdk::Color.new(65535, 65535, 0),
222             Gdk::Color.new(0, 65535, 65535),
223             Gdk::Color.new(65535, 0, 65535) ]
224
225 class Label
226     attr_accessor :color, :name, :button
227     def initialize(name)
228         @name = name
229     end
230 end
231
232 class Entry
233     @@thumbnails_height = 64
234     @@max_height = nil
235     def Entry.thumbnails_height
236         return @@thumbnails_height
237     end
238
239     attr_accessor :path, :type, :angle, :button, :image, :alignment, :removed, :labeled
240
241     def initialize(path, type)
242         @path = path
243         @type = type
244         if @@max_height.nil?
245             @@max_height = $main_window.root_window.size[1]
246         end
247         @protect_cleanup = Mutex.new
248     end
249
250     def pixbuf_full
251         @protect_cleanup.synchronize {
252             if @pixbuf_full.nil?
253                 msg 3, ">>> pixbuf_full #{path}"
254                 load_into_pixbuf_full
255             end
256             return @pixbuf_full
257         }
258     end
259     def free_pixbuf_full
260         @protect_cleanup.synchronize {
261             if @pixbuf_full.nil?
262                 return false
263             else
264                 msg 3, ">>> free_pixbuf_full #{path}"
265                 @pixbuf_full = nil
266                 return true
267             end
268         }
269     end
270     def pixbuf_main(width, height)
271         @protect_cleanup.synchronize {
272             if @pixbuf_main.nil? || width != @width || height != @height
273                 msg 3, ">>> pixbuf_main #{path}"
274                 @width = width
275                 @height = height
276                 load_into_pixbuf_full  #- make sure it is loaded
277                 if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
278                     resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
279                     if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
280                         @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
281                     else
282                         @pixbuf_main = @pixbuf_full
283                     end
284                 else
285                     resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
286                     if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
287                         @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
288                     else
289                         @pixbuf_main = @pixbuf_full
290                     end
291                 end
292             end
293             return @pixbuf_main
294         }
295     end
296     def free_pixbuf_main
297         @protect_cleanup.synchronize {
298             if @pixbuf_main.nil?
299                 return false
300             else
301                 msg 3, ">>> free_pixbuf_main #{path}"
302                 @pixbuf_main = nil
303                 return true
304             end
305         }
306     end
307     def pixbuf_thumbnail
308         return @protect_cleanup.synchronize {
309             if @pixbuf_thumbnail.nil?
310                 msg 3, ">>> pixbuf_thumbnail #{path}"
311                 load_into_pixbuf_full  #- make sure it is loaded
312                 @pixbuf_thumbnail = @pixbuf_full.scale(@pixbuf_full.width * (@@thumbnails_height.to_f/@pixbuf_full.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
313             end
314             return @pixbuf_thumbnail
315         }
316     end
317     def free_pixbuf_thumbnail
318         @protect_cleanup.synchronize {
319             if @pixbuf_thumbnail.nil?
320                 return false
321             else
322                 msg 3, ">>> free_pixbuf_thumbnail #{path}"
323                 @pixbuf_thumbnail = nil
324                 return true
325             end
326         }
327     end
328
329     def outline_color
330         if removed
331             return $color_red
332         elsif labeled
333             return labeled.color
334         else
335             return nil
336         end
337     end
338
339     def show_bg
340         if outline_color.nil?
341             button.modify_bg(Gtk::StateType::NORMAL, nil)
342             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
343             button.modify_bg(Gtk::StateType::ACTIVE, nil)
344         else
345             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
346             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
347             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
348         end
349     end
350
351     def get_beautified_name
352         if type == 'image'
353             size = get_image_size(path)
354             return _("%s (%sx%s, %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
355                                              size[:x],
356                                              size[:y],
357                                              commify(file_size(path)/1024)]
358         else
359             return _("%s (video - %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
360                                              commify(file_size(path)/1024)]
361         end
362     end
363
364     private
365     def cleanup_dir(dir)
366         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
367         Dir.delete(dir)
368     end
369
370     def load_into_pixbuf_full
371         if @pixbuf_full.nil?
372             msg 3, ">>> load_into_pixbuf_full #{path}"
373             if @type == 'video'
374                 tmp = Tempfile.new("boohclassifiertemp")
375                 tmp.close!
376                 Dir.mkdir(dest_dir = tmp.path)
377                 orig_base = File.basename(path)
378                 tmpdir = gen_video_thumbnail(path, false, 0)
379                 if tmpdir.nil?
380                     return
381                 end
382                 image_path = "#{tmpdir}/00000001.jpg"
383             else
384                 image_path = @path
385             end
386             begin
387                 @pixbuf_full = Gdk::Pixbuf.new(image_path)
388             rescue Gdk::PixbufError
389                 msg 0, "Cannot load #{image_path}: #{$!}"
390                 return
391             ensure
392                 if @type == 'video'
393                     File.delete(image_path)
394                     Dir.rmdir(tmpdir)
395                 end
396             end
397             if @pixbuf_full
398                 if @angle.nil?
399                     if @type == 'image'
400                         @angle = guess_rotate(image_path)
401                     else
402                         @angle = 0
403                     end
404                 end
405                 if @angle != 0
406                     msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
407                     @pixbuf_full = rotate_pixbuf(@pixbuf_full, @angle)
408                 end
409                 if @pixbuf_full.height > @@max_height
410                     #- save a lot of memory, don't store in actual full size
411                     @pixbuf_full = @pixbuf_full.scale(@pixbuf_full.width * (@@max_height.to_f/@pixbuf_full.height), @@max_height, Gdk::Pixbuf::INTERP_BILINEAR)
412                 end
413             end
414             if @type == 'video'
415                 cleanup_dir(dest_dir)
416             end
417         end
418     end
419
420     def to_s
421         @path
422     end
423 end
424
425 $allentries = []
426
427 class MainView < Gtk::DrawingArea
428
429     @@borders_thickness = 5
430     @@borders_length = 25
431
432     def MainView.get_usable_width(available_width)
433         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
434     end
435
436     def MainView.get_usable_height(available_height)
437         return available_height - @@borders_thickness * 2
438     end
439     
440     def initialize
441         super()
442         signal_connect('expose-event') { draw }
443         signal_connect('configure-event') { update_shown; GC.start }
444         signal_connect('realize') {
445             @preloader = Thread.new {
446                 #- background preloading
447                 while true
448                     msg 3, "background main preloading triggered..."
449                     if ! @entry.nil?
450                         index = $allentries.index(@entry)
451                         w, h = window.size
452                         w = MainView.get_usable_width(w)
453                         h = MainView.get_usable_height(h)
454                         for j in 1 .. $config['preload-distance'].to_i
455                             i = index + j
456                             if i < $allentries.size
457                                 $allentries[i].pixbuf_main(w, h)
458                             end
459                             i = index - j
460                             if i >= 0
461                                 $allentries[i].pixbuf_main(w, h)
462                             end
463                             GC.start
464                             mem = get_mem
465                             if mem > $config['cache-memory-use-figure']
466                                 msg 3, "too much RSS, stopping main preloading"
467                                 break
468                             end
469                         end
470                         check_memory_free_cache_if_needed
471                     end
472                     Thread.stop
473                 end
474             }
475             @preloader.priority = -2
476         }
477     end
478
479     def set_shown_entry(entry)
480         if ! entry.nil? && entry == @entry
481             return
482         end
483         if ! entry.nil?
484             if ! entry.button
485                 #- not loaded yet
486                 return
487             else
488                 entry.button.grab_focus
489             end
490         end
491         @entry = entry
492         redraw        
493         @preloader.run
494     end
495
496     def get_shown_entry
497         return @entry
498     end
499
500     def show_next_entry(entry)
501         index = $allentries.index(entry) + 1
502         if index < $allentries.size
503             set_shown_entry($allentries[index])
504         end
505     end
506
507     def redraw
508         update_shown
509         w, h = window.size
510         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
511         window.clear
512         draw
513         window.end_paint
514     end
515
516     def update_shown
517         if @entry
518             width, height = window.size 
519             usable_width = MainView.get_usable_width(width)
520             usable_height = MainView.get_usable_height(height)
521             @pixbuf = @entry.pixbuf_main(usable_width, usable_height)
522             @xpos = (width - @pixbuf.width)/2
523             @ypos = (height - @pixbuf.height)/2
524             @preloader.run
525         else
526             @pixbuf = nil
527         end
528     end
529
530     def draw
531         if @pixbuf
532             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
533             if @entry && @entry.type == 'video'
534                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
535             end
536             if ! @entry.outline_color.nil?
537                 gc = Gdk::GC.new(window)
538                 colormap.alloc_color(@entry.outline_color, false, true)
539                 gc.set_foreground(@entry.outline_color)
540                 if @entry && @entry.type == 'video'
541                     xleft = @xpos - $videoborder_pixbuf.width
542                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
543                 else
544                     xleft = @xpos
545                     xright = @xpos + @pixbuf.width
546                 end
547                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
548                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
549                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
550                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
551                                                [xleft - @@borders_thickness, @ypos - 1],
552                                                [xleft - 1, @ypos - 1],
553                                                [xleft - 1, @ypos + @pixbuf.height + 1],
554                                                [xright + 1, @ypos + @pixbuf.height + 1],
555                                                [xright + 1, @ypos - 1],
556                                                [xleft - @@borders_thickness, @ypos - 1]])
557             end
558         end
559     end
560 end
561
562 def check_memory_free_cache_if_needed
563     GC.start
564     mem = get_mem
565     i = $allentries.index($mainview.get_shown_entry)
566     msg 3, "mem: #{mem} index: #{i}"
567     return if i.nil?
568     ($allentries.size - 1).downto(1) { |j|
569         if mem < $config['cache-memory-use-figure'] * 2 / 3
570             break
571         end
572         index = i + j
573         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
574         freedsomething = false
575         if i + j < $allentries.size
576             freedsomething |= $allentries[i+j].free_pixbuf_full
577         end
578         if i - j > 0
579             freedsomething |= $allentries[i-j].free_pixbuf_full
580         end
581         if freedsomething
582             GC.start
583             mem = get_mem
584             msg 3, "\tmem now: #{mem}"
585         end
586     }
587 end
588
589 def autoscroll_if_needed(button)
590     xpos_left = button.allocation.x
591     xpos_right = button.allocation.x + button.allocation.width
592     hadj = $imagesline_sw.hadjustment
593     current_minx_visible = hadj.value
594     current_maxx_visible = hadj.value + hadj.page_size
595     if xpos_left < current_minx_visible
596         #- autoscroll left
597         newval = hadj.value - (current_minx_visible - xpos_left)
598         hadj.value = newval
599         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
600     elsif xpos_right > current_maxx_visible
601         #- autoscroll right
602         newval = hadj.value + (xpos_right - current_maxx_visible)
603         if newval > hadj.upper - hadj.page_size
604             newval = hadj.upper - hadj.page_size
605         end
606         hadj.value = newval
607         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
608     end
609 end
610
611 def show_popup(parent, msg, *options)
612     dialog = Gtk::Dialog.new
613     if options[0]
614         options = options[0]
615     else
616         options = {}
617     end
618     if options[:title]
619         dialog.title = options[:title]
620     else
621         dialog.title = utf8(_("Booh message"))
622     end
623     lbl = Gtk::Label.new
624     if options[:nomarkup]
625         lbl.text = msg
626     else
627         lbl.markup = msg
628     end
629     if options[:centered]
630         lbl.set_justify(Gtk::Justification::CENTER)
631     end
632     if options[:selectable]
633         lbl.selectable = true
634     end
635     if options[:topwidget]
636         dialog.vbox.add(options[0][:topwidget])
637     end
638     if options[:scrolled]
639         sw = Gtk::ScrolledWindow.new(nil, nil)
640         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
641         sw.add_with_viewport(lbl)
642         dialog.vbox.add(sw)
643         dialog.set_default_size(500, 600)
644     else
645         dialog.vbox.add(lbl)
646         dialog.set_default_size(200, 120)
647     end
648     if options[:bottomwidget]
649         dialog.vbox.add(options[:bottomwidget])
650     end
651     if options[:okcancel]
652         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
653     end
654     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
655
656     if options[:pos_centered]
657         dialog.window_position = Gtk::Window::POS_CENTER
658     else
659         dialog.window_position = Gtk::Window::POS_MOUSE
660     end
661
662     if options[:linkurl]
663         linkbut = Gtk::Button.new('')
664         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
665         linkbut.signal_connect('clicked') {
666             open_url(options[0][:linkurl] + '/index.html')
667             dialog.response(Gtk::Dialog::RESPONSE_OK)
668             set_mousecursor_normal
669         }
670         linkbut.relief = Gtk::RELIEF_NONE
671         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
672         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
673         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
674     end
675
676     dialog.show_all
677
678     if options[:stuff_connector]
679         options[:stuff_connector].call({ :dialog => dialog })
680     end
681                                         
682     if !options[:not_transient]
683         dialog.transient_for = parent
684         dialog.run { |response|
685             if options[:data_getter]
686                 options[:data_getter].call
687             end
688             dialog.destroy
689             if options[:okcancel]
690                 return response == Gtk::Dialog::RESPONSE_OK
691             end
692         }
693     else
694         dialog.signal_connect('response') { dialog.destroy }
695     end
696 end
697
698 def video_view(entry)
699     cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
700     msg 2, cmd
701     system(cmd)
702 end
703
704 def thumbnail_keypressed(entry, event)
705     if event.state & Gdk::Window::MOD1_MASK != 0
706         #- ALT pressed: Alt-Left and Alft-Right rotate
707         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
708             if event.keyval == Gdk::Keyval::GDK_Left
709                 entry.angle = (entry.angle - 90) % 360
710             else
711                 entry.angle = (entry.angle + 90) % 360
712             end
713             entry.free_pixbuf_full
714             entry.free_pixbuf_main
715             entry.free_pixbuf_thumbnail
716             $mainview.redraw
717             entry.image.pixbuf = entry.pixbuf_thumbnail
718             if $config['rotate-set-exif'] == 'true'
719                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
720             end
721         end
722
723     elsif event.state & Gdk::Window::CONTROL_MASK != 0
724         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
725         if event.keyval == Gdk::Keyval::GDK_z
726             perform_undo
727         end
728         if event.keyval == Gdk::Keyval::GDK_r
729             perform_redo
730         end
731
732     else
733         removed_before = entry.removed
734         label_before = entry.labeled
735
736         if event.keyval == Gdk::Keyval::GDK_Delete
737             entry.removed = true
738             entry.labeled = nil
739             entry.show_bg
740             $mainview.show_next_entry(entry)
741             update_visibility(entry)
742
743             save_undo(_("set for removal"),
744                       proc {
745                           entry.removed = removed_before
746                           entry.labeled = label_before
747                           entry.show_bg
748                           update_visibility(entry)
749                           if entry.button.visible?
750                               $mainview.set_shown_entry(entry)
751                           end
752                           proc {
753                               entry.removed = true
754                               entry.labeled = nil
755                               entry.show_bg
756                               update_visibility(entry)
757                               if entry.button.visible?
758                                   $mainview.set_shown_entry(entry)
759                               end
760                           }
761                       })
762
763         elsif event.keyval == Gdk::Keyval::GDK_space
764             if entry.labeled
765                 msg = _("Cleared label")
766             elsif entry.removed
767                 msg = _("Cleared set for removal")
768             end
769             entry.removed = false
770             entry.labeled = nil
771             entry.show_bg
772             $mainview.show_next_entry(entry)
773
774             save_undo(msg,
775                       proc {
776                           entry.removed = removed_before
777                           entry.labeled = label_before
778                           entry.show_bg
779                           $mainview.set_shown_entry(entry)
780                           proc {
781                               entry.removed = false
782                               entry.labeled = nil
783                               entry.show_bg
784                               $mainview.set_shown_entry(entry)
785                           }
786                       })
787
788         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
789             video_view(entry)
790
791         else
792             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
793             if char =~ /^[a-zA-z0-9]$/
794                 label = $labels[char]
795                 
796                 if label.nil?
797                     vb = Gtk::VBox.new(false, 0)
798                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
799                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
800                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
801                     bt.signal_connect('color-set') { color = bt.color }
802                     text = nil
803                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
804                         while $labels.has_key?(entry.text[0,1])
805                             entry.text = entry.text.sub(/./, '')
806                         end
807                     }
808                     if show_popup($main_window,
809                                   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,
810                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
811                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
812                                                                        entry.position = -1
813                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
814                         if text.length > 0
815                             char = text[0,1]  #- in case it changed
816                             label = Label.new(text)
817                             label.color = color
818                             $labels[char] = label
819                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
820                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
821                             label.button.active = true
822                             label.button.signal_connect('toggled') { update_all_visibilities }
823                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
824                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
825                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
826                         end
827                     end
828
829                 else
830                     entry.removed = false
831                     entry.labeled = label
832                     entry.show_bg
833                     $mainview.show_next_entry(entry)
834                     update_visibility(entry)
835
836                     save_undo(_("set label"),
837                               proc {
838                                   entry.removed = removed_before
839                                   entry.labeled = label_before
840                                   entry.show_bg
841                                   update_visibility(entry)
842                                   if entry.button.visible?
843                                       $mainview.set_shown_entry(entry)
844                                   end
845                                   proc {
846                                       entry.removed = false
847                                       entry.labeled = label
848                                       entry.show_bg
849                                       update_visibility(entry)
850                                       if entry.button.visible?
851                                           $mainview.set_shown_entry(entry)
852                                       end
853                                   }
854                               })
855                 end
856             end
857         end
858     end
859 end
860
861 def sb_msg(msg)
862     $statusbar.pop(0)
863     if msg
864         $statusbar.push(0, utf8(msg))
865     end
866 end
867
868 def real_show_entry(entry, tooltips, grab_focus)
869     #- for scoping the actual reference to 'entry'
870     gtk_thread_protect(proc {
871         msg 3, "using entry #{entry}"
872         entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
873         if entry.type == 'video'
874             entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
875                                                              pack_start(entry.image).
876                                                              pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
877             da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
878             da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
879         else
880             entry.button = Gtk::Button.new.set_image(entry.image)
881         end
882         tooltips.set_tip(entry.button, entry.get_beautified_name, nil)
883         $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
884         entry.button.signal_connect('clicked') {
885             if (last_shown = $mainview.get_shown_entry) != entry
886                 $mainview.set_shown_entry(entry)
887                 entry.alignment.set(0.5, 0, 0, 0)
888                 sb_msg(_("Selected %s") % entry.get_beautified_name)
889                 last_shown.nil? or last_shown.alignment.set(0.5, 1, 0, 0)
890             end
891         }
892         entry.button.signal_connect('button-press-event') { |w, event|
893             if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
894                 video_view(entry)
895             end
896         }
897         entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
898         entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
899         if grab_focus
900             entry.button.grab_focus
901         end
902         update_visibility(entry)
903     })
904 end
905
906 def show_entries
907     $images_loader = Thread.new {
908         t1 = Time.now
909         sb_msg(_("Loading images..."))
910         tooltips = Gtk::Tooltips.new
911         counter = 0
912         toremove = []
913         grab_focus = true
914         i = 0
915         total_size = 0
916         while i < $allentries.size
917             entry = $allentries[i]
918             if entry.pixbuf_full
919                 total_size += file_size(entry.path)
920                 entry.pixbuf_thumbnail
921                 real_show_entry(entry, tooltips, grab_focus)
922                 grab_focus = false
923                 if i % 4 == 0
924                     check_memory_free_cache_if_needed
925                 end
926                 counter += 1
927                 i = i + 1
928
929             else
930                 $allentries.delete_at(i)
931             end
932         end
933         check_memory_free_cache_if_needed
934         sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ counter, commify(total_size / 1024), Time.now - t1 ])
935     }
936     $images_loader.priority = -1
937 end
938
939 def reset_all
940     $images_loader and $images_loader.kill
941     reset_labels
942     reset_thumbnails
943     $mainview.set_shown_entry(nil)
944     sb_msg(nil)
945 end
946
947 def open_dir(path)
948     #- remove visual stuff, so that user will see something is happening
949     reset_all
950     sb_msg(_("Scanning source directory..."))
951
952     path = File.expand_path(path.sub(%r|/$|, ''))
953     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
954     #- validate first
955     examined_dirs.each { |dir|
956         if dir =~ /'/
957             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
958         end
959         Dir.entries(dir).each { |file|
960             if file =~ /['"\[\]]/
961                 return utf8(_("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}")
962             end
963         }
964     }
965
966     #- scan for populate second
967     examined_dirs.each { |dir|
968         if File.basename(dir) =~ /^\./
969             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
970             next
971         end
972         entries = Dir.entries(dir)
973         if $sort_by_exif_date
974             dates = {}
975             entries.each { |file|
976                 date_time = Exif.datetimeoriginal(File.join(dir, file))
977                 if ! date_time.nil?
978                     dates[file] = date_time
979                 end
980             }
981             entries = smartsort(entries, dates)
982         else
983             entries.sort!
984         end
985         entries.each { |file|
986             type = entry2type(file)
987             if type
988                 $allentries << Entry.new(File.join(dir, file), type)
989             end
990         }
991     }
992     $workingdir = path
993     show_entries
994     $execute.sensitive = true
995     return nil
996 end
997
998 def open_dir_popup
999     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1000                                     nil,
1001                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1002                                     nil,
1003                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1004     fc.transient_for = $main_window
1005     if $workingdir
1006         fc.current_folder = $workingdir
1007     end
1008     ok = false
1009     while !ok
1010         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1011             msg = open_dir(fc.filename)
1012             if msg
1013                 show_popup(fc, msg)
1014                 ok = false
1015             else
1016                 ok = true
1017             end
1018         else
1019             ok = true
1020         end
1021     end
1022     fc.destroy
1023 end
1024
1025 def gtk_thread_protect(proc, *params)
1026     if Thread.current == Thread.main
1027         proc.call(*params)
1028     else
1029         $protect_gtk_pending_calls.synchronize {
1030             $gtk_pending_calls << [ proc, params ]
1031         }
1032     end
1033 end
1034
1035 def gtk_thread_flush
1036     $protect_gtk_pending_calls.synchronize {
1037         if $gtk_pending_calls.size > 0
1038             elem = $gtk_pending_calls.shift
1039             elem[0].call(*elem[1])
1040         end
1041     }
1042 end
1043
1044 def try_quit(*options)
1045     Gtk.main_quit
1046 end
1047
1048 def execute
1049     dialog = Gtk::Dialog.new
1050     dialog.title = utf8(_("Booh message"))
1051
1052     vb1 = Gtk::VBox.new(false, 5)
1053     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!")))
1054     vb1.pack_start(label, false, false)
1055
1056     table = Gtk::Table.new(0, 0, false)
1057     table.set_row_spacings(5)
1058     table.set_column_spacings(5)
1059     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)
1060     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)
1061     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)
1062     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)
1063     add_row = proc { |row, name, color, truthproc, normal|
1064         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)),
1065                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1066         counter = 0
1067         examples = Gtk::HBox.new(false, 5)
1068         $allentries.each { |entry|
1069             if truthproc.call(entry)
1070                 counter += 1
1071                 if counter < 4
1072                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1073                     if entry.type == 'video'
1074                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1075                                                   pack_start(thumbnail).
1076                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1077                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1078                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1079                     end
1080                     examples.pack_start(thumbnail, false, false)
1081                 elsif counter == 4
1082                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1083                 end
1084             end
1085         }
1086         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1087         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1088
1089         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1090         iter = combostore.append
1091         if normal
1092             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1093             iter[1] = utf8(_("Move to:"))
1094             iter = combostore.append
1095             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1096             iter[1] = utf8(_("Copy to:"))
1097         else
1098             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1099             iter[1] = utf8(_("Permanently remove"))
1100         end
1101         iter = combostore.append
1102         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1103         iter[1] = utf8(_("Do nothing"))
1104         combo = Gtk::ComboBox.new(combostore)
1105         combo.active = 0
1106         renderer = Gtk::CellRendererPixbuf.new
1107         combo.pack_start(renderer, false)
1108         combo.set_attributes(renderer, :pixbuf => 0)
1109         renderer = Gtk::CellRendererText.new
1110         combo.pack_start(renderer, true)
1111         combo.set_attributes(renderer, :text => 1)
1112
1113         if normal
1114             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1115             lastpath = $workingdir
1116             pathbutton.signal_connect('clicked') {
1117                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1118                                                 nil,
1119                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1120                                                 nil,
1121                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1122                 fc.transient_for = dialog
1123                 fc.current_folder = lastpath
1124                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1125                     pathlabel.text = fc.filename
1126                 end
1127                 lastpath = fc.filename
1128                 fc.destroy
1129             }
1130             combo.signal_connect('changed') {
1131                 pathbutton.sensitive = combo.active <= 1
1132             }
1133             vb = Gtk::VBox.new(false, 5)
1134             vb.pack_start(combo, false, false)
1135             vb.pack_start(pathbutton, false, false)
1136             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1137             { :combo => combo, :pathlabel => pathlabel }
1138         else
1139             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1140             { :combo => combo }
1141         end
1142     }
1143     stuff = {}
1144     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1145     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1146     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1147
1148     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1149     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1150     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 ]))
1151     if toremove_amount > 0
1152         vb1.pack_start(check_removal, false, false)
1153         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1154             check_removal.sensitive = widget.active == 0
1155         }
1156     end
1157
1158     dialog.vbox.add(vb1)
1159
1160     dialog.set_default_size(800, 600)
1161     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1162     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1163     dialog.window_position = Gtk::Window::POS_MOUSE
1164     dialog.transient_for = $main_window
1165
1166     dialog.show_all
1167
1168     while true
1169         dialog.run { |response|        
1170             if response == Gtk::Dialog::RESPONSE_OK
1171                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1172                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1173                     break
1174                 end
1175                 problem = false
1176                 label2entries = {}
1177                 $labels.values.each { |label| label2entries[label] = [] }
1178                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1179                 stuff.keys.each { |key|
1180                     if key.is_a?(Label) && stuff[key][:combo].active <= 1
1181                         destination = stuff[key][:pathlabel].text
1182                         if destination[0] != ?/
1183                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1184                             problem = true
1185                             break
1186                         end
1187                         begin
1188                             Dir.mkdir(destination)
1189                         rescue Errno::EEXIST
1190                         end
1191                         begin
1192                             st = File.stat(destination)
1193                         rescue
1194                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1195                             problem = true
1196                             break
1197                         end
1198                         if ! st.directory? || ! st.writable?
1199                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1200                             problem = true
1201                             break
1202                         end
1203                         label2entries[key].each { |entry|
1204                             begin
1205                                 File.stat(File.join(destination, File.basename(entry.path)))
1206                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1207                                 problem = true
1208                                 break
1209                             rescue
1210                             end
1211                         }
1212                         if problem
1213                             break
1214                         end
1215                     end
1216                 }
1217                 if ! problem
1218                     begin
1219                         moved = 0
1220                         copied = 0
1221                         stuff.keys.each { |key|
1222                             if key.is_a?(Label) && stuff[key][:combo].active <= 1
1223                                 destination = stuff[key][:pathlabel].text
1224                                 label2entries[key].each { |entry|
1225                                     if stuff[key][:combo].active == 0
1226                                         File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1227                                         moved += 1
1228                                     elsif stuff[key][:combo].active == 1
1229                                         system("cp -dp '#{entry.path}' '#{destination}'")
1230                                         copied += 1
1231                                     end
1232                                 }
1233                             end
1234                         }
1235                         removed = 0
1236                         if stuff['toremove'][:combo].active == 0
1237                             $allentries.each { |entry|
1238                                 if entry.removed
1239                                     File.delete(entry.path)
1240                                     removed += 1
1241                                 end
1242                             }
1243                         end
1244                     rescue
1245                         msg 1, "woops: #{$!}"
1246                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1247                     end
1248                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1249                     dialog.destroy
1250                     reset_all
1251                     return
1252                 end
1253
1254             else
1255                 dialog.destroy
1256                 return
1257             end
1258         }
1259     end
1260 end
1261
1262 def update_visibility(entry)
1263     if ! entry.button
1264         #- not yet loaded
1265         return
1266     end
1267     if entry.labeled
1268         if entry.labeled.button.active?
1269             entry.button.show
1270         else
1271             entry.button.hide
1272         end
1273     elsif entry.removed
1274         if $toremove_button.active?
1275             entry.button.show
1276         else
1277             entry.button.hide
1278         end
1279     else
1280         if $unlabelled_button.active?
1281             entry.button.show
1282         else
1283             entry.button.hide
1284         end
1285     end
1286 end
1287         
1288 def update_all_visibilities
1289     $allentries.each { |entry|
1290         update_visibility(entry)
1291     }
1292     shown = $mainview.get_shown_entry
1293     if shown.nil?
1294         return
1295     end
1296     while shown.button && ! shown.button.visible? && shown != $allentries.last
1297         shown = $allentries[$allentries.index(shown) + 1]
1298     end 
1299     if shown.button && shown.button.visible?
1300         shown.button.grab_focus
1301         return
1302     end
1303     $allentries.reverse.each { |entry|
1304         if entry.button && entry.button.visible?
1305             entry.button.grab_focus
1306             return
1307         end
1308     }
1309 end
1310
1311 def preferences
1312     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1313                              $main_window,
1314                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1315                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1316                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1317
1318     tooltips = Gtk::Tooltips.new
1319     
1320     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1321     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1322                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1323     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1324                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1325     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1326
1327     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1328                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1329     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1330                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1331     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1332
1333     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1334                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1335     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1336                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1337     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1338
1339     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1340                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1341     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1342                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1343     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1344                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1345                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1346     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1347     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1348     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1349                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1350                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1351     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1352     cache_memfree_radio.signal_connect('toggled') {
1353         if cache_memfree_radio.active?
1354             cache_memfree_label.sensitive = true
1355             cache_specify_label.sensitive = false
1356         else
1357             cache_specify_label.sensitive = true
1358             cache_memfree_label.sensitive = false
1359         end
1360     }
1361     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1362     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1363         cache_memfree_spin.value = $1.to_i
1364     else
1365         cache_specify_spin.value = $config['cache-memory-use'].to_i
1366     end
1367
1368     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1369                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1370     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1371     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1372
1373     dialog.vbox.show_all
1374     dialog.run { |response|
1375         if response == Gtk::Dialog::RESPONSE_OK
1376             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1377             $config['browser'] = from_utf8(browser_entry.text)
1378             $config['preload-distance'] = preload_distance.value
1379             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1380             if cache_memfree_radio.active?
1381                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1382             else
1383                 $config['cache-memory-use'] = cache_specify_spin.value
1384             end
1385             set_cache_memory_use_figure
1386         end
1387     }
1388     dialog.destroy
1389 end
1390
1391 def perform_undo
1392     if $undo_mb.sensitive?
1393         $redo_mb.sensitive = true
1394         if not more_undoes = UndoHandler.undo($statusbar)
1395             $undo_mb.sensitive = false
1396         end
1397     end
1398 end
1399
1400 def perform_redo
1401     if $redo_mb.sensitive?
1402         $undo_mb.sensitive = true
1403         if not more_redoes = UndoHandler.redo($statusbar)
1404             $redo_mb.sensitive = false
1405         end
1406     end
1407 end
1408
1409 def create_menubar    
1410     #- menu
1411     mb = Gtk::MenuBar.new
1412
1413     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1414     filesubmenu = Gtk::Menu.new
1415     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1416     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1417     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1418     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1419     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1420     filemenu.set_submenu(filesubmenu)
1421     mb.append(filemenu)
1422
1423     open.signal_connect('activate') { open_dir_popup }
1424     $execute.signal_connect('activate') { execute }
1425     quit.signal_connect('activate') { try_quit }
1426
1427     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1428     editsubmenu = Gtk::Menu.new
1429     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1430     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1431     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1432     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1433     editmenu.set_submenu(editsubmenu)
1434     mb.append(editmenu)
1435
1436     $undo_mb.signal_connect('activate') { perform_undo }
1437     $redo_mb.signal_connect('activate') { perform_redo }
1438     prefs.signal_connect('activate') { preferences }
1439     
1440     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1441     helpsubmenu = Gtk::Menu.new
1442     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1443     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1444     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1445     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1446     helpmenu.set_submenu(helpsubmenu)
1447     mb.append(helpmenu)
1448
1449     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1450     about.signal_connect('activate') { call_about }
1451
1452
1453     #- no toolbar, to save height
1454
1455     return mb
1456 end
1457
1458 def reset_labels
1459     for child in $labels_vbox.children
1460         $labels_vbox.remove(child)
1461     end
1462     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1463     $labels = {}
1464     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1465     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1466     $unlabelled_button.active = true
1467     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1468     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1469     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1470     $toremove_button.active = true
1471     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1472     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1473     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1474     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1475 end
1476
1477 def reset_thumbnails
1478     $allentries = []
1479     for child in $imagesline.children
1480         $imagesline.remove(child)
1481     end
1482 end
1483
1484 def create_main_window
1485
1486     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1487     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1488
1489     mb = create_menubar
1490
1491     main_vbox = Gtk::VBox.new(false, 0)
1492     main_vbox.pack_start(mb, false, false)
1493     mainview_hbox = Gtk::HBox.new
1494     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 0, 0).add($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1495     reset_labels
1496     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1497     main_vbox.pack_start(mainview_hbox, true, true)
1498     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1499     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1500     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1501     main_vbox.pack_start($imagesline_sw, false, false)
1502     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1503
1504     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + 15)
1505
1506     $main_window = Gtk::Window.new
1507     $main_window.add(main_vbox)
1508     $main_window.signal_connect('delete-event') {
1509         try_quit({ :disallow_cancel => true })
1510     }
1511
1512     #- read/save size and position of window
1513     if $config['pos-x'] && $config['pos-y']
1514         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1515     else
1516         $main_window.window_position = Gtk::Window::POS_CENTER
1517     end
1518     msg 3, "size: #{$config['width']}x#{$config['height']}"
1519     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1520     $main_window.signal_connect('configure-event') {
1521         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1522         x, y = $main_window.window.root_origin
1523         width, height = $main_window.window.size
1524         $config['pos-x'] = x
1525         $config['pos-y'] = y
1526         $config['width'] = width
1527         $config['height'] = height
1528         false
1529     }
1530
1531     $protect_gtk_pending_calls = Mutex.new
1532     $gtk_pending_calls = []
1533     Gtk.timeout_add(50) {
1534         gtk_thread_flush
1535         true
1536     }
1537
1538     $main_window.show_all
1539 end
1540
1541
1542 handle_options
1543 Thread.abort_on_exception = true
1544 read_config
1545 Gtk.init
1546
1547
1548 create_main_window
1549 check_config
1550
1551 if ARGV[0]
1552     open_dir(ARGV[0])
1553 end
1554 Gtk.main
1555
1556 write_config