take care of opening another directory while processing
[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
25 require 'gtk2'
26 require 'booh/libadds'
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     [ '--sort-by-exif-date', '-s', GetoptLong::NO_ARGUMENT, _("Sort entries by EXIF date") ],
46 ]
47
48 $preloader_allowed = false
49
50 def usage
51     puts _("Usage: %s [OPTION]...") % File.basename($0)
52     $options.each { |ary|
53         printf " %3s, %-15s %s\n", ary[1], ary[0], ary[3]
54     }
55 end
56
57 def handle_options
58     parser = GetoptLong.new
59     parser.set_options(*$options.collect { |ary| ary[0..2] })
60     begin
61         parser.each_option do |name, arg|
62             case name
63             when '--help'
64                 usage
65                 exit(0)
66
67             when '--verbose-level'
68                 $verbose_level = arg.to_i
69
70             when '--sort-by-exif-date'
71                 $sort_by_exif_date = true
72
73             end
74         end
75     rescue
76         puts $!
77         usage
78         exit(1)
79     end
80 end
81
82 def startup_memfree
83     if $startup_memfree.nil?
84         meminfo = IO.readlines('/proc/meminfo').join
85         meminfo =~ /MemFree:.*?(\d+)/ or return -1
86         memfree = $1
87         meminfo =~ /Buffers:.*?(\d+)/ and buffers = $1
88         meminfo =~ /Cached:.*?(\d+)/ and cached = $1
89         $startup_memfree = memfree.to_i + buffers.to_i + cached.to_i
90     end
91     return $startup_memfree
92 end
93
94 def set_cache_memory_use_figure
95     
96     if $config['cache-memory-use'] =~ /memfree_(\d+)/
97         $config['cache-memory-use-figure'] = startup_memfree*$1.to_f/100
98     else
99         $config['cache-memory-use-figure'] = $config['cache-memory-use'].to_i
100     end
101     msg 2, _("Cache memory used: %s kB") % $config['cache-memory-use-figure']
102 end
103
104 def read_config
105     $config = {}
106     $config_file = File.expand_path('~/.booh-classifier-rc')
107     if File.readable?($config_file)
108         $xmldoc = REXML::Document.new(File.new($config_file))
109         $xmldoc.root.elements.each { |element|
110             txt = element.get_text
111             if txt
112                 if txt.value =~ /~~~/
113                     $config[element.name] = txt.value.split(/~~~/)
114                 else
115                     $config[element.name] = txt.value
116                 end
117             elsif element.elements.size == 0
118                 $config[element.name] = ''
119             else
120                 $config[element.name] = {}
121                 element.each { |chld|
122                     txt = chld.get_text
123                     $config[element.name][chld.name] = txt ? txt.value : nil
124                 }
125             end
126         }
127     end
128     $config['video-viewer'] ||= '/usr/bin/mplayer %f'
129     $config['browser'] ||= "/usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f"
130     $config['preload-distance'] ||= '5'
131     $config['cache-memory-use'] ||= 'memfree_80%'
132     $config['rotate-set-exif'] ||= 'true'
133     set_cache_memory_use_figure
134 end
135
136 def check_config
137     missing = %w(mplayer).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
138     if missing != []
139         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
140     end
141
142     viewer_binary = $config['video-viewer'].split.first
143     if viewer_binary && ! File.executable?(viewer_binary)
144         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
145 You should fix this in Edit/Preferences so that you can view videos.
146
147 Problem was: '%s' is not an executable file.
148 Hint: don't forget to specify the full path to the executable,
149 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
150     end
151     browser_binary = $config['browser'].split.first
152     if browser_binary && ! File.executable?(browser_binary)
153         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
154 You should fix this in Edit/Preferences so that you can open URLs.
155
156 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
157     end
158 end
159
160 def write_config
161     ios = File.open($config_file, "w")
162     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
163     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
164     $config.each_pair { |key, value|
165         elem = $xmldoc.root.add_element key
166         if value.is_a? Hash
167             $config[key].each_pair { |subkey, subvalue|
168                 subelem = elem.add_element subkey
169                 subelem.add_text subvalue.to_s
170             }
171         elsif value.is_a? Array
172             elem.add_text value.join('~~~')
173         else
174             if !value
175                 elem.remove
176             else
177                 elem.add_text value.to_s
178             end
179         end
180     }
181     $xmldoc.write(ios, 0)
182     ios.close
183 end
184
185 def save_undo(name, closure, *params)
186     UndoHandler.save_undo(name, closure, [ *params ])
187     $undo_mb.sensitive = true
188     $redo_mb.sensitive = false
189 end
190
191 def get_mem
192     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
193     msg 3, "RSS: #{$1}"
194     return $1.to_i
195 end
196
197 def show_mem(*txt)
198     txt.length > 0 and print txt[0]
199     msg 2, "RSS: #{get_mem}"
200 end
201
202 class Gdk::Color
203     def darker
204         color = dup
205         color.red = [ color.red - 10000, 0 ].max
206         color.green = [ color.green - 10000, 0 ].max
207         color.blue = [ color.blue - 10000, 0 ].max
208         return color
209     end
210     def lighter
211         color = dup
212         color.red = [ color.red + 10000, 65535 ].min
213         color.green = [ color.green + 10000, 65535 ].min
214         color.blue = [ color.blue + 10000, 65535 ].min
215         return color
216     end
217 end
218
219 $color_red = Gdk::Color.new(65535, 0, 0)
220 $colors = [ Gdk::Color.new(0, 65535, 0),
221             Gdk::Color.new(0, 0, 65535),
222             Gdk::Color.new(65535, 65535, 0),
223             Gdk::Color.new(0, 65535, 65535),
224             Gdk::Color.new(65535, 0, 65535) ]
225
226 class Label
227     attr_accessor :color, :name, :button
228     def initialize(name)
229         @name = name
230     end
231 end
232
233 class Entry
234     @@thumbnails_height = 64
235     @@max_width = nil
236     def Entry.thumbnails_height
237         return @@thumbnails_height
238     end
239
240     attr_accessor :path, :type, :angle, :button, :image, :alignment, :removed, :labeled
241
242     def initialize(path, type)
243         @path = path
244         @type = type
245         if @@max_width.nil?
246             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
247         end
248     end
249
250     def pixbuf_full
251         if @pixbuf_full.nil?
252             msg 3, ">>> pixbuf_full #{path}"
253             load_into_pixbuf_full
254         end
255         return @pixbuf_full
256     end
257     def free_pixbuf_full
258         if @pixbuf_full.nil?
259             return false
260         else
261             msg 3, ">>> free_pixbuf_full #{path}"
262             @pixbuf_full = nil
263             return true
264         end
265     end
266     def pixbuf_main
267         width, height = $mainview.window.size 
268         width = MainView.get_usable_width(width)
269         height = MainView.get_usable_height(height)
270         if @pixbuf_main.nil? || width != @width || height != @height
271             msg 3, ">>> pixbuf_main #{path}"
272             @width = width
273             @height = height
274             load_into_pixbuf_full  #- make sure it is loaded
275             if @pixbuf_full.nil?
276                 return
277             end
278             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
279                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
280                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
281                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
282                 else
283                     @pixbuf_main = @pixbuf_full
284                 end
285             else
286                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
287                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
288                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
289                 else
290                     @pixbuf_main = @pixbuf_full
291                 end
292             end
293         end
294         return @pixbuf_main
295     end
296     def free_pixbuf_main
297         if @pixbuf_main.nil?
298             return false
299         else
300             msg 3, ">>> free_pixbuf_main #{path}"
301             @pixbuf_main = nil
302             return true
303         end
304     end
305     def pixbuf_thumbnail
306         if @pixbuf_thumbnail.nil?
307             if @pixbuf_main
308                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
309                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (@@thumbnails_height.to_f/@pixbuf_main.height), @@thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
310             else
311                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
312                 @pixbuf_thumbnail = load_into_pixbuf_at_size { |w, h|
313                     if @angle == 0
314                         if h > @@thumbnails_height
315                             [ w * @@thumbnails_height.to_f/h, @@thumbnails_height ]
316                         else
317                             [ w, h ]
318                         end
319                     else
320                         if w > @@thumbnails_height
321                             [ @@thumbnails_height, h * @@thumbnails_height.to_f/w ]
322                         else
323                             [ w, h ]
324                         end
325                     end
326                 }
327             end
328         end
329         return @pixbuf_thumbnail
330     end
331     def free_pixbuf_thumbnail
332         if @pixbuf_thumbnail.nil?
333             return false
334         else
335             msg 3, ">>> free_pixbuf_thumbnail #{path}"
336             @pixbuf_thumbnail = nil
337             return true
338         end
339     end
340
341     def outline_color
342         if removed
343             return $color_red
344         elsif labeled
345             return labeled.color
346         else
347             return nil
348         end
349     end
350
351     def show_bg
352         if outline_color.nil?
353             button.modify_bg(Gtk::StateType::NORMAL, nil)
354             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
355             button.modify_bg(Gtk::StateType::ACTIVE, nil)
356         else
357             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
358             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
359             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
360         end
361     end
362
363     def get_beautified_name
364         if type == 'image'
365             size = get_image_size(path)
366             return _("%s (%sx%s, %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
367                                              size[:x],
368                                              size[:y],
369                                              commify(file_size(path)/1024)]
370         else
371             return _("%s (video - %s KB)") % [File.basename(@path).gsub(/\.[^.]+$/, ''),
372                                              commify(file_size(path)/1024)]
373         end
374     end
375
376     private
377     def cleanup_dir(dir)
378         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
379         Dir.delete(dir)
380     end
381
382     def load_into_pixbuf_full
383         if @pixbuf_full.nil?
384             msg 3, ">>> load_into_pixbuf_full #{path}"
385             @pixbuf_full = load_into_pixbuf_at_size { |w, h|
386                 if @angle == 0
387                     if w > @@max_width
388                         #- save memory and speedup (+35%) loading 
389                         [ w * (factor = @@max_width.to_f/w), h * factor ]
390                     else
391                         [ w, h ]
392                     end
393                 else
394                     if h > @@max_width
395                         [ w * (factor = @@max_width.to_f/h), h * factor ]
396                     else
397                         [ w, h ]
398                     end
399                 end
400             }
401         end
402     end
403
404     def load_into_pixbuf_at_size(&specify_size)
405         pixbuf = nil
406         if @type == 'video'
407             tmp = Tempfile.new("boohclassifiertemp")
408             tmp.close!
409             Dir.mkdir(dest_dir = tmp.path)
410             orig_base = File.basename(path)
411             tmpdir = gen_video_thumbnail(path, false, 0)
412             if tmpdir.nil?
413                 return
414             end
415             image_path = "#{tmpdir}/00000001.jpg"
416         else
417             image_path = @path
418         end
419         if @angle.nil?
420             if @type == 'image'
421                 @angle = guess_rotate(image_path)
422             else
423                 @angle = 0
424             end
425         end
426         begin
427             #- use a pixbuf loader and trigger Gtk.main_iteration on each chunk if needed, to keep the UI responsive even
428             #- if loaded pictures are several MBs large
429             loader = Gdk::PixbufLoader.new
430             loader.signal_connect('size-prepared') { |l, w, h|
431                 r = specify_size.call(w, h)
432                 msg 3, "specified sizes: #{r[0]} #{r[1]}"
433                 loader.set_size(*specify_size.call(w, h))
434             }
435             loader.signal_connect('area-prepared') { pixbuf = loader.pixbuf }
436             file = File.new(image_path)
437             while (chunk = file.read(4096)) != nil
438                 loader.write(chunk)
439                 Gtk.main_iteration while Gtk.events_pending?
440             end
441             file.close
442             loader.close
443             if pixbuf.nil?
444                 raise "Loaded pixbuf nil - #{path} #{image_path}"
445             end
446         rescue Gdk::PixbufError
447             msg 0, "Cannot load #{image_path}: #{$!}"
448             return
449         ensure
450             if @type == 'video'
451                 File.delete(image_path)
452                 Dir.rmdir(tmpdir)
453             end
454         end
455         if pixbuf
456             if @angle != 0
457                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
458                 pixbuf = rotate_pixbuf(pixbuf, @angle)
459             end
460         end
461         if @type == 'video'
462             cleanup_dir(dest_dir)
463         end
464         return pixbuf
465     end
466
467     def to_s
468         @path
469     end
470 end
471
472 $allentries = []
473
474 def run_preloader_real
475     msg 3, "*** >> main preloading triggered..."
476     if $preloader_running
477         msg 3, "*** >>>>>> already running, return <<<<<<<<"
478         return
479     end
480     $preloader_running = true
481     if $mainview.get_shown_entry
482         mem = get_mem
483         if mem > $config['cache-memory-use-figure']
484             msg 3, "too much RSS, stopping preloading, triggering GC"
485             $preloader_running = false
486             GC.start
487             msg 3, "GC finished"
488             return
489         end
490         index = $allentries.index($mainview.get_shown_entry)
491         for j in 1 .. $config['preload-distance'].to_i
492             i = index + j
493             if i < $allentries.size
494                 $allentries[i].pixbuf_main
495             end
496             #- in case just loaded another directory
497             if $preloader_force_exit
498                 $preloader_running = false
499                 $preloader_force_exit = false
500                 return
501             end
502             i = index - j
503             if i >= 0
504                 $allentries[i].pixbuf_main
505             end
506             #- in case just loaded another directory
507             if $preloader_force_exit
508                 $preloader_running = false
509                 $preloader_force_exit = false
510                 return
511             end
512         end
513         check_memory_free_cache_if_needed
514     end
515     $preloader_running = false
516     msg 3, "*** << main preloading finished"
517     #- if we're already on a different image, rerun the preloader
518     if index != $allentries.index($mainview.get_shown_entry)
519         run_preloader_real
520     end
521 end
522
523 def run_preloader
524     if ! $preloader_allowed
525         msg 3, "*** preloader not yet allowed"
526         return
527     end
528     Gtk.timeout_add(10) {
529         run_preloader_real
530         false
531     }
532 end
533
534 class MainView < Gtk::DrawingArea
535
536     @@borders_thickness = 5
537     @@borders_length = 25
538
539     def MainView.borders_thickness
540         return @@borders_thickness
541     end
542
543     def MainView.get_usable_width(available_width)
544         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
545     end
546
547     def MainView.get_usable_height(available_height)
548         return available_height - @@borders_thickness * 2
549     end
550     
551     def initialize
552         super()
553         signal_connect('expose-event') { draw }
554         signal_connect('configure-event') { update_shown }
555         @preloader_running = false
556     end
557
558     def set_shown_entry(entry)
559         t1 = Time.now
560         if ! entry.nil? && entry == @entry
561             return
562         end
563         if ! entry.nil?
564             if ! entry.button
565                 #- not loaded yet
566                 return
567             else
568                 entry.button.grab_focus
569             end
570         end
571         @entry = entry
572         redraw        
573         run_preloader
574         msg 3, "entry shown in: #{Time.now - t1} s"
575     end
576
577     def get_shown_entry
578         return @entry
579     end
580
581     def show_next_entry(entry)
582         index = $allentries.index(entry) + 1
583         if index < $allentries.size
584             set_shown_entry($allentries[index])
585         end
586     end
587
588     def redraw
589         update_shown
590         w, h = window.size
591         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
592         window.clear
593         draw
594         window.end_paint
595     end
596
597     def update_shown
598         if @entry
599             @pixbuf = @entry.pixbuf_main
600             width, height = window.size 
601             @xpos = (width - @pixbuf.width)/2
602             @ypos = (height - @pixbuf.height)/2
603         else
604             @pixbuf = nil
605         end
606     end
607
608     def draw
609         if @pixbuf
610             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
611             if @entry && @entry.type == 'video'
612                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
613             end
614             if ! @entry.outline_color.nil?
615                 gc = Gdk::GC.new(window)
616                 colormap.alloc_color(@entry.outline_color, false, true)
617                 gc.set_foreground(@entry.outline_color)
618                 if @entry && @entry.type == 'video'
619                     xleft = @xpos - $videoborder_pixbuf.width
620                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
621                 else
622                     xleft = @xpos
623                     xright = @xpos + @pixbuf.width
624                 end
625                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
626                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
627                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
628                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
629                                                [xleft - @@borders_thickness, @ypos - 1],
630                                                [xleft - 1, @ypos - 1],
631                                                [xleft - 1, @ypos + @pixbuf.height + 1],
632                                                [xright + 1, @ypos + @pixbuf.height + 1],
633                                                [xright + 1, @ypos - 1],
634                                                [xleft - @@borders_thickness, @ypos - 1]])
635             end
636         end
637     end
638 end
639
640 def check_memory_free_cache_if_needed
641     i = $allentries.index($mainview.get_shown_entry)
642     return if i.nil?
643     if get_mem < $config['cache-memory-use-figure'] * 2 / 3
644         return
645     end
646     msg 3, "too much RSS, triggering GC"
647     GC.start
648     msg 3, "GC finished"
649     ($allentries.size - 1).downto(1) { |j|
650         if get_mem < $config['cache-memory-use-figure'] / 2
651             break
652         end
653         index = i + j
654         msg 3, "too much RSS, freeing full size of #{i+j} and #{i-j}..."
655         if i + j < $allentries.size
656             $allentries[i+j].free_pixbuf_full
657         end
658         if i - j > 0
659             $allentries[i-j].free_pixbuf_full
660         end
661     }
662 end
663
664 def autoscroll_if_needed(button)
665     xpos_left = button.allocation.x
666     xpos_right = button.allocation.x + button.allocation.width
667     hadj = $imagesline_sw.hadjustment
668     current_minx_visible = hadj.value
669     current_maxx_visible = hadj.value + hadj.page_size
670     if xpos_left < current_minx_visible
671         #- autoscroll left
672         newval = hadj.value - (current_minx_visible - xpos_left)
673         hadj.value = newval
674         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
675     elsif xpos_right > current_maxx_visible
676         #- autoscroll right
677         newval = hadj.value + (xpos_right - current_maxx_visible)
678         if newval > hadj.upper - hadj.page_size
679             newval = hadj.upper - hadj.page_size
680         end
681         hadj.value = newval
682         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
683     end
684 end
685
686 def show_popup(parent, msg, *options)
687     dialog = Gtk::Dialog.new
688     if options[0]
689         options = options[0]
690     else
691         options = {}
692     end
693     if options[:title]
694         dialog.title = options[:title]
695     else
696         dialog.title = utf8(_("Booh message"))
697     end
698     lbl = Gtk::Label.new
699     if options[:nomarkup]
700         lbl.text = msg
701     else
702         lbl.markup = msg
703     end
704     if options[:centered]
705         lbl.set_justify(Gtk::Justification::CENTER)
706     end
707     if options[:selectable]
708         lbl.selectable = true
709     end
710     if options[:topwidget]
711         dialog.vbox.add(options[0][:topwidget])
712     end
713     if options[:scrolled]
714         sw = Gtk::ScrolledWindow.new(nil, nil)
715         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
716         sw.add_with_viewport(lbl)
717         dialog.vbox.add(sw)
718         dialog.set_default_size(500, 600)
719     else
720         dialog.vbox.add(lbl)
721         dialog.set_default_size(200, 120)
722     end
723     if options[:bottomwidget]
724         dialog.vbox.add(options[:bottomwidget])
725     end
726     if options[:okcancel]
727         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
728     end
729     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
730
731     if options[:pos_centered]
732         dialog.window_position = Gtk::Window::POS_CENTER
733     else
734         dialog.window_position = Gtk::Window::POS_MOUSE
735     end
736
737     if options[:linkurl]
738         linkbut = Gtk::Button.new('')
739         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
740         linkbut.signal_connect('clicked') {
741             open_url(options[0][:linkurl] + '/index.html')
742             dialog.response(Gtk::Dialog::RESPONSE_OK)
743             set_mousecursor_normal
744         }
745         linkbut.relief = Gtk::RELIEF_NONE
746         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
747         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
748         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
749     end
750
751     dialog.show_all
752
753     if options[:stuff_connector]
754         options[:stuff_connector].call({ :dialog => dialog })
755     end
756                                         
757     if !options[:not_transient]
758         dialog.transient_for = parent
759         dialog.run { |response|
760             if options[:data_getter]
761                 options[:data_getter].call
762             end
763             dialog.destroy
764             if options[:okcancel]
765                 return response == Gtk::Dialog::RESPONSE_OK
766             end
767         }
768     else
769         dialog.signal_connect('response') { dialog.destroy }
770     end
771 end
772
773 def video_view(entry)
774     cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
775     msg 2, cmd
776     system(cmd)
777 end
778
779 def thumbnail_keypressed(entry, event)
780     if event.state & Gdk::Window::MOD1_MASK != 0
781         #- ALT pressed: Alt-Left and Alft-Right rotate
782         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
783             if event.keyval == Gdk::Keyval::GDK_Left
784                 entry.angle = (entry.angle - 90) % 360
785             else
786                 entry.angle = (entry.angle + 90) % 360
787             end
788             entry.free_pixbuf_full
789             entry.free_pixbuf_main
790             entry.free_pixbuf_thumbnail
791             $mainview.redraw
792             entry.image.pixbuf = entry.pixbuf_thumbnail
793             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
794                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
795             end
796         end
797
798     elsif event.state & Gdk::Window::CONTROL_MASK != 0
799         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
800         if event.keyval == Gdk::Keyval::GDK_z
801             perform_undo
802         end
803         if event.keyval == Gdk::Keyval::GDK_r
804             perform_redo
805         end
806
807     else
808         removed_before = entry.removed
809         label_before = entry.labeled
810
811         if event.keyval == Gdk::Keyval::GDK_Delete
812             entry.removed = true
813             entry.labeled = nil
814             entry.show_bg
815             $mainview.show_next_entry(entry)
816             update_visibility(entry)
817
818             save_undo(_("set for removal"),
819                       proc {
820                           entry.removed = removed_before
821                           entry.labeled = label_before
822                           entry.show_bg
823                           update_visibility(entry)
824                           if entry.button.visible?
825                               $mainview.set_shown_entry(entry)
826                           end
827                           proc {
828                               entry.removed = true
829                               entry.labeled = nil
830                               entry.show_bg
831                               update_visibility(entry)
832                               if entry.button.visible?
833                                   $mainview.set_shown_entry(entry)
834                               end
835                           }
836                       })
837
838         elsif event.keyval == Gdk::Keyval::GDK_space
839             if entry.labeled
840                 msg = _("Cleared label")
841             elsif entry.removed
842                 msg = _("Cleared set for removal")
843             end
844             entry.removed = false
845             entry.labeled = nil
846             entry.show_bg
847             $mainview.show_next_entry(entry)
848
849             save_undo(msg,
850                       proc {
851                           entry.removed = removed_before
852                           entry.labeled = label_before
853                           entry.show_bg
854                           $mainview.set_shown_entry(entry)
855                           proc {
856                               entry.removed = false
857                               entry.labeled = nil
858                               entry.show_bg
859                               $mainview.set_shown_entry(entry)
860                           }
861                       })
862
863         elsif event.keyval == Gdk::Keyval::GDK_Return && entry.type == 'video'
864             video_view(entry)
865
866         else
867             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
868             if char =~ /^[a-zA-z0-9]$/
869                 label = $labels[char]
870                 
871                 if label.nil?
872                     vb = Gtk::VBox.new(false, 0)
873                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
874                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
875                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
876                     bt.signal_connect('color-set') { color = bt.color }
877                     text = nil
878                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
879                         while $labels.has_key?(entry.text[0,1])
880                             entry.text = entry.text.sub(/./, '')
881                         end
882                     }
883                     if show_popup($main_window,
884                                   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,
885                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
886                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
887                                                                        entry.position = -1
888                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
889                         if text.length > 0
890                             char = text[0,1]  #- in case it changed
891                             label = Label.new(text)
892                             label.color = color
893                             $labels[char] = label
894                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
895                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
896                             label.button.active = true
897                             label.button.signal_connect('toggled') { update_all_visibilities }
898                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
899                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
900                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
901                         end
902                     end
903
904                 else
905                     entry.removed = false
906                     entry.labeled = label
907                     entry.show_bg
908                     $mainview.show_next_entry(entry)
909                     update_visibility(entry)
910
911                     save_undo(_("set label"),
912                               proc {
913                                   entry.removed = removed_before
914                                   entry.labeled = label_before
915                                   entry.show_bg
916                                   update_visibility(entry)
917                                   if entry.button.visible?
918                                       $mainview.set_shown_entry(entry)
919                                   end
920                                   proc {
921                                       entry.removed = false
922                                       entry.labeled = label
923                                       entry.show_bg
924                                       update_visibility(entry)
925                                       if entry.button.visible?
926                                           $mainview.set_shown_entry(entry)
927                                       end
928                                   }
929                               })
930                 end
931             end
932         end
933     end
934 end
935
936 def sb_msg(msg)
937     $statusbar.pop(0)
938     if msg
939         $statusbar.push(0, utf8(msg))
940     end
941 end
942
943 def show_entry(entry, i)
944     #- scope entry
945     msg 3, "showing entry #{entry}"
946     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
947     if entry.type == 'video'
948         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
949                                            pack_start(entry.image).
950                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
951         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
952         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
953     else
954         entry.button = Gtk::Button.new.set_image(entry.image)
955     end
956     Gtk::Tooltips.new.set_tip(entry.button, entry.get_beautified_name, nil)
957     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
958     entry.button.signal_connect('clicked') {
959         if (last_shown = $mainview.get_shown_entry) != entry
960             entry.alignment.set(0.5, 0, 0, 0)
961             last_shown and last_shown.alignment.set(0.5, 1, 0, 0)
962             $mainview.set_shown_entry(entry)
963             sb_msg(_("Selected %s") % entry.get_beautified_name)
964         end
965     }
966     entry.button.signal_connect('button-press-event') { |w, event|
967         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
968             video_view(entry)
969         end
970     }
971     entry.button.signal_connect('focus-in-event') { entry.button.clicked; autoscroll_if_needed(entry.button) }
972     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
973     if i == 0
974         entry.button.grab_focus
975     end
976     update_visibility(entry)
977     Gtk.main_iteration while Gtk.events_pending?
978 end
979
980 def show_entries(allentries)
981     sb_msg(_("Loading images..."))
982     $loading_progressbar.fraction = 0
983     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
984     $loading_progressbar.show
985     t1 = Time.now
986     total_loaded_files = 0
987     total_loaded_size = 0
988     i = 0
989     while i < allentries.size
990 #        printf "%d %s\n", i, __LINE__
991         entry = allentries[i]
992         if i == 0
993             loaded_pixbuf = entry.pixbuf_main
994         else
995             loaded_pixbuf = entry.pixbuf_thumbnail
996         end
997         if $allentries != allentries
998             #- loaded another directory while this one was not yet finished
999             msg 3, "allentries differ, stopping this deprecated load"
1000             return
1001         end
1002
1003         if loaded_pixbuf
1004             show_entry(entry, i)
1005             if $allentries != allentries
1006                 #- loaded another directory while this one was not yet finished
1007                 msg 3, "allentries differ, stopping this deprecated load"
1008                 return
1009             end
1010
1011             total_loaded_size += file_size(entry.path)
1012             if i % 4 == 0
1013                 check_memory_free_cache_if_needed
1014             end
1015             total_loaded_files += 1
1016             i += 1
1017             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1018                 #- when we're at preload distance, beging preloading to preload distance
1019                 allentries[i - $config['preload-distance'].to_i].pixbuf_main
1020             end
1021             if i == $config['preload-distance'].to_i * 2 + 1
1022                 #- when we're after double preload distance, activate normal preloading
1023                 $preloader_allowed = true
1024             end
1025             
1026         else
1027             allentries.delete_at(i)
1028         end
1029         $loading_progressbar.fraction = i.to_f / allentries.size
1030         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1031     end
1032     if i <= $config['preload-distance'].to_i * 2
1033         #- not yet preloaded correctly
1034         $preloader_allowed = true
1035         run_preloader
1036     end
1037     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1038     $loading_progressbar.hide
1039     $execute.sensitive = true
1040 end
1041
1042 def reset_all
1043     reset_labels
1044     reset_thumbnails
1045     $mainview.set_shown_entry(nil)
1046     sb_msg(nil)
1047     $preloader_allowed = false
1048 end
1049
1050 def open_dir(path)
1051     #- remove visual stuff, so that user will see something is happening
1052     reset_all
1053     sb_msg(_("Scanning source directory..."))
1054     Gtk.main_iteration while Gtk.events_pending?
1055
1056     path = File.expand_path(path.sub(%r|/$|, ''))
1057     examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
1058     #- validate first
1059     examined_dirs.each { |dir|
1060         if dir =~ /'/
1061             return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1062         end
1063         Dir.entries(dir).each { |file|
1064             if file =~ /'/ && type = entry2type(file) && type == 'video'
1065                 return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1066             end
1067         }
1068     }
1069
1070     #- scan for populate second
1071     examined_dirs.each { |dir|
1072         if File.basename(dir) =~ /^\./
1073             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1074             next
1075         end
1076         entries = Dir.entries(dir)
1077         if $sort_by_exif_date
1078             dates = {}
1079             entries.each { |file|
1080                 date_time = Exif.datetimeoriginal(File.join(dir, file))
1081                 if ! date_time.nil?
1082                     dates[file] = date_time
1083                 end
1084             }
1085             entries = smartsort(entries, dates)
1086         else
1087             entries.sort!
1088         end
1089         entries.each { |file|
1090             type = entry2type(file)
1091             if type
1092                 $allentries << Entry.new(File.join(dir, file), type)
1093             end
1094         }
1095     }
1096     $workingdir = path
1097     return nil
1098 end
1099
1100 def open_dir_popup
1101     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1102                                     nil,
1103                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1104                                     nil,
1105                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1106     fc.transient_for = $main_window
1107     if $workingdir
1108         fc.current_folder = $workingdir
1109     end
1110     ok = false
1111     load = false
1112     while !ok
1113         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1114             msg = open_dir(fc.filename)
1115             if msg
1116                 show_popup(fc, msg)
1117                 ok = false
1118             else
1119                 ok = true
1120                 load = true
1121             end
1122         else
1123             ok = true
1124         end
1125     end
1126     fc.destroy
1127     if load
1128         show_entries($allentries)
1129     end
1130 end
1131
1132 def try_quit(*options)
1133     Gtk.main_quit
1134 end
1135
1136 def execute
1137     dialog = Gtk::Dialog.new
1138     dialog.title = utf8(_("Booh message"))
1139
1140     vb1 = Gtk::VBox.new(false, 5)
1141     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!")))
1142     vb1.pack_start(label, false, false)
1143
1144     table = Gtk::Table.new(0, 0, false)
1145     table.set_row_spacings(5)
1146     table.set_column_spacings(5)
1147     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)
1148     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)
1149     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)
1150     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)
1151     add_row = proc { |row, name, color, truthproc, normal|
1152         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)),
1153                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1154         counter = 0
1155         examples = Gtk::HBox.new(false, 5)
1156         $allentries.each { |entry|
1157             if truthproc.call(entry)
1158                 counter += 1
1159                 if counter < 4
1160                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1161                     if entry.type == 'video'
1162                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1163                                                   pack_start(thumbnail).
1164                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1165                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1166                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1167                     end
1168                     examples.pack_start(thumbnail, false, false)
1169                 elsif counter == 4
1170                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1171                 end
1172             end
1173         }
1174         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1175         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1176
1177         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1178         iter = combostore.append
1179         if normal
1180             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1181             iter[1] = utf8(_("Move to:"))
1182             iter = combostore.append
1183             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1184             iter[1] = utf8(_("Copy to:"))
1185         else
1186             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1187             iter[1] = utf8(_("Permanently remove"))
1188         end
1189         iter = combostore.append
1190         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1191         iter[1] = utf8(_("Do nothing"))
1192         combo = Gtk::ComboBox.new(combostore)
1193         combo.active = 0
1194         renderer = Gtk::CellRendererPixbuf.new
1195         combo.pack_start(renderer, false)
1196         combo.set_attributes(renderer, :pixbuf => 0)
1197         renderer = Gtk::CellRendererText.new
1198         combo.pack_start(renderer, true)
1199         combo.set_attributes(renderer, :text => 1)
1200
1201         if normal
1202             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1203             lastpath = $workingdir
1204             pathbutton.signal_connect('clicked') {
1205                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1206                                                 nil,
1207                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1208                                                 nil,
1209                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1210                 fc.transient_for = dialog
1211                 fc.current_folder = lastpath
1212                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1213                     pathlabel.text = fc.filename
1214                 end
1215                 lastpath = fc.filename
1216                 fc.destroy
1217             }
1218             combo.signal_connect('changed') {
1219                 pathbutton.sensitive = combo.active <= 1
1220             }
1221             vb = Gtk::VBox.new(false, 5)
1222             vb.pack_start(combo, false, false)
1223             vb.pack_start(pathbutton, false, false)
1224             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1225             { :combo => combo, :pathlabel => pathlabel }
1226         else
1227             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1228             { :combo => combo }
1229         end
1230     }
1231     stuff = {}
1232     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1233     $labels.values.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1234     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1235
1236     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1237     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1238     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 ]))
1239     if toremove_amount > 0
1240         vb1.pack_start(check_removal, false, false)
1241         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1242             check_removal.sensitive = widget.active == 0
1243         }
1244     end
1245
1246     dialog.vbox.add(vb1)
1247
1248     dialog.set_default_size(800, 600)
1249     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1250     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1251     dialog.window_position = Gtk::Window::POS_MOUSE
1252     dialog.transient_for = $main_window
1253
1254     dialog.show_all
1255
1256     while true
1257         dialog.run { |response|        
1258             if response == Gtk::Dialog::RESPONSE_OK
1259                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1260                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1261                     break
1262                 end
1263                 problem = false
1264                 label2entries = {}
1265                 $labels.values.each { |label| label2entries[label] = [] }
1266                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1267                 stuff.keys.each { |key|
1268                     if key.is_a?(Label) && stuff[key][:combo].active <= 1
1269                         destination = stuff[key][:pathlabel].text
1270                         if destination[0] != ?/
1271                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1272                             problem = true
1273                             break
1274                         end
1275                         begin
1276                             Dir.mkdir(destination)
1277                         rescue Errno::EEXIST
1278                         end
1279                         begin
1280                             st = File.stat(destination)
1281                         rescue
1282                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1283                             problem = true
1284                             break
1285                         end
1286                         if ! st.directory? || ! st.writable?
1287                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1288                             problem = true
1289                             break
1290                         end
1291                         label2entries[key].each { |entry|
1292                             begin
1293                                 File.stat(File.join(destination, File.basename(entry.path)))
1294                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1295                                 problem = true
1296                                 break
1297                             rescue
1298                             end
1299                         }
1300                         if problem
1301                             break
1302                         end
1303                     end
1304                 }
1305                 if ! problem
1306                     begin
1307                         moved = 0
1308                         copied = 0
1309                         stuff.keys.each { |key|
1310                             if key.is_a?(Label) && stuff[key][:combo].active <= 1
1311                                 destination = stuff[key][:pathlabel].text
1312                                 label2entries[key].each { |entry|
1313                                     if stuff[key][:combo].active == 0
1314                                         File.rename(entry.path, File.join(destination, File.basename(entry.path)))
1315                                         moved += 1
1316                                     elsif stuff[key][:combo].active == 1
1317                                         system("cp -dp '#{entry.path}' '#{destination}'")
1318                                         copied += 1
1319                                     end
1320                                 }
1321                             end
1322                         }
1323                         removed = 0
1324                         if stuff['toremove'][:combo].active == 0
1325                             $allentries.each { |entry|
1326                                 if entry.removed
1327                                     File.delete(entry.path)
1328                                     removed += 1
1329                                 end
1330                             }
1331                         end
1332                     rescue
1333                         msg 1, "woops: #{$!}"
1334                         show_popup(dialog, utf8(_("Unexpected system call error: '%s'.") % $!))
1335                     end
1336                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1337                     dialog.destroy
1338                     reset_all
1339                     return
1340                 end
1341
1342             else
1343                 dialog.destroy
1344                 return
1345             end
1346         }
1347     end
1348 end
1349
1350 def update_visibility(entry)
1351     if ! entry.button
1352         #- not yet loaded
1353         return
1354     end
1355     if entry.labeled
1356         if entry.labeled.button.active?
1357             entry.button.show
1358         else
1359             entry.button.hide
1360         end
1361     elsif entry.removed
1362         if $toremove_button.active?
1363             entry.button.show
1364         else
1365             entry.button.hide
1366         end
1367     else
1368         if $unlabelled_button.active?
1369             entry.button.show
1370         else
1371             entry.button.hide
1372         end
1373     end
1374 end
1375         
1376 def update_all_visibilities
1377     $allentries.each { |entry|
1378         update_visibility(entry)
1379     }
1380     shown = $mainview.get_shown_entry
1381     if shown.nil?
1382         return
1383     end
1384     while shown.button && ! shown.button.visible? && shown != $allentries.last
1385         shown = $allentries[$allentries.index(shown) + 1]
1386     end 
1387     if shown.button && shown.button.visible?
1388         shown.button.grab_focus
1389         return
1390     end
1391     $allentries.reverse.each { |entry|
1392         if entry.button && entry.button.visible?
1393             entry.button.grab_focus
1394             return
1395         end
1396     }
1397 end
1398
1399 def preferences
1400     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1401                              $main_window,
1402                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1403                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1404                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1405
1406     tooltips = Gtk::Tooltips.new
1407     
1408     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1409     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1410                0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1411     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1412                1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1413     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1414
1415     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1416                0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1417     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1418                1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 2)
1419     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1420
1421     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1422                0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1423     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(preload_distance = Gtk::SpinButton.new(0, 50, 1).set_value($config['preload-distance'].to_i)),
1424                1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 2)
1425     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1426
1427     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1428                0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1429     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1430                1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 2)
1431     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1432                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1433                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1434     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1435     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1436     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1437                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1438                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1439     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1440     cache_memfree_radio.signal_connect('toggled') {
1441         if cache_memfree_radio.active?
1442             cache_memfree_label.sensitive = true
1443             cache_specify_label.sensitive = false
1444         else
1445             cache_specify_label.sensitive = true
1446             cache_memfree_label.sensitive = false
1447         end
1448     }
1449     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1450     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1451         cache_memfree_spin.value = $1.to_i
1452     else
1453         cache_specify_spin.value = $config['cache-memory-use'].to_i
1454     end
1455
1456     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1457                0, 2, 4, 5, Gtk::FILL, Gtk::SHRINK, 2, 2)
1458     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1459     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1460
1461     dialog.vbox.show_all
1462     dialog.run { |response|
1463         if response == Gtk::Dialog::RESPONSE_OK
1464             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1465             $config['browser'] = from_utf8(browser_entry.text)
1466             $config['preload-distance'] = preload_distance.value
1467             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1468             if cache_memfree_radio.active?
1469                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1470             else
1471                 $config['cache-memory-use'] = cache_specify_spin.value
1472             end
1473             set_cache_memory_use_figure
1474         end
1475     }
1476     dialog.destroy
1477 end
1478
1479 def perform_undo
1480     if $undo_mb.sensitive?
1481         $redo_mb.sensitive = true
1482         if not more_undoes = UndoHandler.undo($statusbar)
1483             $undo_mb.sensitive = false
1484         end
1485     end
1486 end
1487
1488 def perform_redo
1489     if $redo_mb.sensitive?
1490         $undo_mb.sensitive = true
1491         if not more_redoes = UndoHandler.redo($statusbar)
1492             $redo_mb.sensitive = false
1493         end
1494     end
1495 end
1496
1497 def create_menubar    
1498     #- menu
1499     mb = Gtk::MenuBar.new
1500
1501     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1502     filesubmenu = Gtk::Menu.new
1503     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1504     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1505     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1506     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1507     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1508     filemenu.set_submenu(filesubmenu)
1509     mb.append(filemenu)
1510
1511     open.signal_connect('activate') { open_dir_popup }
1512     $execute.signal_connect('activate') { execute }
1513     quit.signal_connect('activate') { try_quit }
1514
1515     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1516     editsubmenu = Gtk::Menu.new
1517     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1518     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1519     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1520     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1521     editmenu.set_submenu(editsubmenu)
1522     mb.append(editmenu)
1523
1524     $undo_mb.signal_connect('activate') { perform_undo }
1525     $redo_mb.signal_connect('activate') { perform_redo }
1526     prefs.signal_connect('activate') { preferences }
1527     
1528     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1529     helpsubmenu = Gtk::Menu.new
1530     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1531     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1532     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1533     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1534     helpmenu.set_submenu(helpsubmenu)
1535     mb.append(helpmenu)
1536
1537     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial.html') }
1538     about.signal_connect('activate') { call_about }
1539
1540
1541     #- no toolbar, to save height
1542
1543     return mb
1544 end
1545
1546 def reset_labels
1547     for child in $labels_vbox.children
1548         $labels_vbox.remove(child)
1549     end
1550     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1551     $labels = {}
1552     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1553     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1554     $unlabelled_button.active = true
1555     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1556     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1557     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1558     $toremove_button.active = true
1559     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1560     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1561     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1562     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1563 end
1564
1565 def reset_thumbnails
1566     $allentries = []
1567     if $preloader_running
1568         $preloader_force_exit = true
1569     end
1570     for child in $imagesline.children
1571         $imagesline.remove(child)
1572     end
1573 end
1574
1575 def create_main_window
1576
1577     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1578     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1579
1580     mb = create_menubar
1581
1582     main_vbox = Gtk::VBox.new(false, 0)
1583     main_vbox.pack_start(mb, false, false)
1584     mainview_hbox = Gtk::HBox.new
1585     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
1586     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1587     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1588     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
1589     reset_labels
1590     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1591     main_vbox.pack_start(mainview_hbox, true, true)
1592     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1593     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1594     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1595     main_vbox.pack_start($imagesline_sw, false, false)
1596     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1597
1598     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + 15)
1599
1600     $main_window = Gtk::Window.new
1601     $main_window.add(main_vbox)
1602     $main_window.signal_connect('delete-event') {
1603         try_quit({ :disallow_cancel => true })
1604     }
1605
1606     #- read/save size and position of window
1607     if $config['pos-x'] && $config['pos-y']
1608         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1609     else
1610         $main_window.window_position = Gtk::Window::POS_CENTER
1611     end
1612     msg 3, "size: #{$config['width']}x#{$config['height']}"
1613     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1614     $main_window.signal_connect('configure-event') {
1615         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1616         x, y = $main_window.window.root_origin
1617         width, height = $main_window.window.size
1618         $config['pos-x'] = x
1619         $config['pos-y'] = y
1620         $config['width'] = width
1621         $config['height'] = height
1622         false
1623     }
1624
1625     $main_window.show_all
1626     $loading_progressbar.hide
1627 end
1628
1629
1630 handle_options
1631 read_config
1632 Gtk.init
1633
1634
1635 create_main_window
1636 check_config
1637
1638 if ARGV[0]
1639     if msg = open_dir(ARGV[0])
1640         puts msg
1641     else
1642         show_entries($allentries)
1643     end
1644 end
1645 Gtk.main
1646
1647 write_config