e932df462fae958f66564198d667ad9f99157b9d
[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) 2004-2008 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 'booh/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     $config['thumbnails-height'] ||= '64'
134     set_cache_memory_use_figure
135 end
136
137 def check_config
138     missing = %w(mplayer).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
139     if missing != []
140         show_popup($main_window, utf8(_("The following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')), { :pos_centered => true })
141     end
142
143     if !system("which exif >/dev/null 2>/dev/null")
144         show_popup($main_window, utf8(_("The program 'exif' is needed to view EXIF data. Please install it.")), { :pos_centered => true })
145     end
146     viewer_binary = $config['video-viewer'].split.first
147     if viewer_binary && ! File.executable?(viewer_binary)
148         show_popup($main_window, utf8(_("The configured video viewer seems to be unavailable.
149 You should fix this in Edit/Preferences so that you can view videos.
150
151 Problem was: '%s' is not an executable file.
152 Hint: don't forget to specify the full path to the executable,
153 e.g. '/usr/bin/mplayer' is correct but 'mplayer' only is not.") % viewer_binary), { :pos_centered => true, :not_transient => true })
154     end
155     browser_binary = $config['browser'].split.first
156     if browser_binary && ! File.executable?(browser_binary)
157         show_popup($main_window, utf8(_("The configured browser seems to be unavailable.
158 You should fix this in Edit/Preferences so that you can open URLs.
159
160 Problem was: '%s' is not an executable file.") % browser_binary), { :pos_centered => true, :not_transient => true })
161     end
162 end
163
164 def write_config
165     ios = File.open($config_file, "w")
166     $xmldoc = Document.new "<booh-classifier-rc version='#{$VERSION}'/>"
167     $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
168     $config.each_pair { |key, value|
169         elem = $xmldoc.root.add_element key
170         if value.is_a? Hash
171             $config[key].each_pair { |subkey, subvalue|
172                 subelem = elem.add_element subkey
173                 subelem.add_text subvalue.to_s
174             }
175         elsif value.is_a? Array
176             elem.add_text value.join('~~~')
177         else
178             if !value
179                 elem.remove
180             else
181                 elem.add_text value.to_s
182             end
183         end
184     }
185     $xmldoc.write(ios, 0)
186     ios.close
187 end
188
189 def save_undo(name, closure, *params)
190     UndoHandler.save_undo(name, closure, [ *params ])
191     $undo_mb.sensitive = true
192     $redo_mb.sensitive = false
193 end
194
195 def get_mem
196     IO.readlines('/proc/self/status').join =~ /VmRSS.*?(\d+)\s*kB/
197     msg 3, "RSS: #{$1}"
198     return $1.to_i
199 end
200
201 def show_mem(*txt)
202     txt.length > 0 and print txt[0]
203     msg 2, "RSS: #{get_mem}"
204 end
205
206 class Gdk::Color
207     def darker
208         color = dup
209         color.red = [ color.red - 10000, 0 ].max
210         color.green = [ color.green - 10000, 0 ].max
211         color.blue = [ color.blue - 10000, 0 ].max
212         return color
213     end
214     def lighter
215         color = dup
216         color.red = [ color.red + 10000, 65535 ].min
217         color.green = [ color.green + 10000, 65535 ].min
218         color.blue = [ color.blue + 10000, 65535 ].min
219         return color
220     end
221 end
222
223 $color_red = Gdk::Color.new(65535, 0, 0)
224 $colors = [ Gdk::Color.new(0, 65535, 0),
225             Gdk::Color.new(0, 0, 65535),
226             Gdk::Color.new(65535, 65535, 0),
227             Gdk::Color.new(0, 65535, 65535),
228             Gdk::Color.new(65535, 0, 65535) ]
229
230 class Label
231     attr_accessor :color, :name, :button
232     def initialize(name)
233         @name = name
234     end
235 end
236
237 class Entry
238     @@max_width = nil
239     def Entry.thumbnails_height
240         return $config['thumbnails-height'].to_i
241     end
242
243     attr_accessor :path, :guipath, :type, :angle, :button, :image, :alignment, :removed, :labeled
244
245     def initialize(path, type, guipath)
246         @path = path
247         @type = type
248         @guipath = guipath
249         if @@max_width.nil?
250             @@max_width = $main_window.root_window.size[0] - $labels_vbox.allocation.width - ( $videoborder_pixbuf.width + MainView.borders_thickness) * 2
251         end
252     end
253
254     def pixbuf_full
255         if @pixbuf_full.nil?
256             msg 3, ">>> pixbuf_full #{path}"
257             load_into_pixbuf_full
258         end
259         return @pixbuf_full
260     end
261     def free_pixbuf_full
262         if @pixbuf_full.nil?
263             return false
264         else
265             msg 3, ">>> free_pixbuf_full #{path}"
266             @pixbuf_full = nil
267             return true
268         end
269     end
270     def pixbuf_main(interruptable)
271         width, height = $mainview.window.size 
272         width = MainView.get_usable_width(width)
273         height = MainView.get_usable_height(height)
274         if @pixbuf_main.nil? || width != @width || height != @height
275             msg 3, ">>> pixbuf_main #{path}"
276             @width = width
277             @height = height
278             load_into_pixbuf_full(interruptable)  #- make sure it is loaded
279             if @pixbuf_full.nil?
280                 return
281             end
282             if @pixbuf_full.width.to_f / @pixbuf_full.height > width.to_f / height
283                 resized_height = @pixbuf_full.height * (width.to_f/@pixbuf_full.width)
284                 if @pixbuf_full.width > width || @pixbuf_full.height > resized_height
285                     @pixbuf_main = @pixbuf_full.scale(width, resized_height, Gdk::Pixbuf::INTERP_BILINEAR)
286                 else
287                     @pixbuf_main = @pixbuf_full
288                 end
289             else
290                 resized_width = @pixbuf_full.width * (height.to_f/@pixbuf_full.height)
291                 if @pixbuf_full.width > resized_width || @pixbuf_full.height > height
292                     @pixbuf_main = @pixbuf_full.scale(resized_width, height, Gdk::Pixbuf::INTERP_BILINEAR)
293                 else
294                     @pixbuf_main = @pixbuf_full
295                 end
296             end
297         end
298         return @pixbuf_main
299     end
300     def free_pixbuf_main
301         if @pixbuf_main.nil?
302             return false
303         else
304             msg 3, ">>> free_pixbuf_main #{path}"
305             @pixbuf_main = nil
306             return true
307         end
308     end
309     def pixbuf_thumbnail
310         if @pixbuf_thumbnail.nil?
311             if @pixbuf_main
312                 msg 3, ">>> pixbuf_thumbnail from main #{path}"
313                 @pixbuf_thumbnail = @pixbuf_main.scale(@pixbuf_main.width * (Entry.thumbnails_height.to_f/@pixbuf_main.height), Entry.thumbnails_height, Gdk::Pixbuf::INTERP_BILINEAR)
314             else
315                 msg 3, ">>> pixbuf_thumbnail from file #{path}"
316                 @pixbuf_thumbnail = load_into_pixbuf_at_size(false) { |w, h|
317                     if @angle == 0
318                         if h > Entry.thumbnails_height
319                             [ w * Entry.thumbnails_height.to_f/h, Entry.thumbnails_height ]
320                         else
321                             [ w, h ]
322                         end
323                     else
324                         if w > Entry.thumbnails_height
325                             [ Entry.thumbnails_height, h * Entry.thumbnails_height.to_f/w ]
326                         else
327                             [ w, h ]
328                         end
329                     end
330                 }
331             end
332         end
333         return @pixbuf_thumbnail
334     end
335     def free_pixbuf_thumbnail
336         if @pixbuf_thumbnail.nil?
337             return false
338         else
339             msg 3, ">>> free_pixbuf_thumbnail #{path}"
340             @pixbuf_thumbnail = nil
341             return true
342         end
343     end
344
345     def outline_color
346         if removed
347             return $color_red
348         elsif labeled
349             return labeled.color
350         else
351             return nil
352         end
353     end
354
355     def show_bg
356         if outline_color.nil?
357             button.modify_bg(Gtk::StateType::NORMAL, nil)
358             button.modify_bg(Gtk::StateType::PRELIGHT, nil)
359             button.modify_bg(Gtk::StateType::ACTIVE, nil)
360         else
361             button.modify_bg(Gtk::StateType::NORMAL, outline_color)
362             button.modify_bg(Gtk::StateType::PRELIGHT, outline_color.lighter)
363             button.modify_bg(Gtk::StateType::ACTIVE, outline_color)
364         end
365     end
366
367     def get_beautified_name
368         if type == 'image'
369             size = get_image_size(path)
370             return _("%s (%sx%s, %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
371                                              size[:x],
372                                              size[:y],
373                                              commify(file_size(path)/1024)]
374         else
375             return _("%s (video - %s KB)") % [@guipath.gsub(/\.[^.]+$/, ''),
376                                              commify(file_size(path)/1024)]
377         end
378     end
379
380     private
381     def cleanup_dir(dir)
382         Dir.entries(dir).each { |file| file != '.' && file != '..' and File.delete(File.join(dir, file)) }
383         Dir.delete(dir)
384     end
385
386     def load_into_pixbuf_full(interruptable)
387         if @pixbuf_full.nil?
388             msg 3, ">>> load_into_pixbuf_full #{path}"
389             @pixbuf_full = load_into_pixbuf_at_size(interruptable) { |w, h|
390                 if @angle == 0
391                     if w > @@max_width
392                         #- save memory and speedup (+35%) loading 
393                         [ w * (factor = @@max_width.to_f/w), h * factor ]
394                     else
395                         [ w, h ]
396                     end
397                 else
398                     if h > @@max_width
399                         [ w * (factor = @@max_width.to_f/h), h * factor ]
400                     else
401                         [ w, h ]
402                     end
403                 end
404             }
405         end
406     end
407
408     def load_into_pixbuf_at_size(interruptable, &specify_size)
409         pixbuf = nil
410         if @type == 'video'
411             tmp = Tempfile.new("boohclassifiertemp")
412             tmp.close!
413             Dir.mkdir(dest_dir = tmp.path)
414             orig_base = File.basename(path)
415             tmpdir = gen_video_thumbnail(path, false, 0)
416             if tmpdir.nil?
417                 return
418             end
419             image_path = "#{tmpdir}/00000001.jpg"
420         else
421             image_path = @path
422         end
423         if @angle.nil?
424             if @type == 'image'
425                 @angle = guess_rotate(image_path)
426             else
427                 @angle = 0
428             end
429         end
430         begin
431             #- use a pixbuf loader and trigger Gtk.main_iteration on each chunk if needed, to keep the UI responsive even
432             #- if loaded pictures are several MBs large
433             loader = Gdk::PixbufLoader.new
434             loader.signal_connect('size-prepared') { |l, w, h|
435                 r = specify_size.call(w, h)
436                 #msg 3, "specified sizes: #{r[0]} #{r[1]}"
437                 loader.set_size(*specify_size.call(w, h))
438             }
439             id = loader.signal_connect('area-prepared') { pixbuf = loader.pixbuf }
440             if ! loader.load_not_freezing_ui(image_path, interruptable, id)
441                 return
442             end
443             loader.close
444             if pixbuf.nil?
445                 raise "Loaded pixbuf nil - #{path} #{image_path}"
446             end
447         rescue Gdk::PixbufError
448             msg 0, "Cannot load #{image_path}: #{$!}"
449             return
450         ensure
451             if @type == 'video'
452                 File.delete(image_path)
453                 Dir.rmdir(tmpdir)
454             end
455         end
456         if pixbuf
457             if @angle != 0
458                 msg 3, ">>> load_into_pixbuf_full #{image_path} => rotate #{@angle}"
459                 pixbuf = rotate_pixbuf(pixbuf, @angle)
460             end
461         end
462         if @type == 'video'
463             cleanup_dir(dest_dir)
464         end
465         return pixbuf
466     end
467
468     def to_s
469         @path
470     end
471 end
472
473 $allentries = []
474
475 def gc
476     start = Time.now
477     GC.start
478     msg 3, "GC in #{Time.now - start} s"
479 end
480
481 def free_cache
482     i = $allentries.index($mainview.get_shown_entry)
483     return if i.nil?
484     start = Time.now
485     ($allentries.size - 1).downto($config['preload-distance'].to_i + 1) { |j|
486         index = i + j
487         if i + j < $allentries.size
488             $allentries[i+j].free_pixbuf_full
489             $allentries[i+j].free_pixbuf_main
490         end
491         if i - j > 0
492             $allentries[i-j].free_pixbuf_full
493             $allentries[i-j].free_pixbuf_main
494         end
495     }
496     msg 3, "freeing done in #{Time.now - start} s"
497     if get_mem > $config['cache-memory-use-figure'] * 3 / 4
498         gc
499         get_mem
500     end
501 end
502
503 def run_preloader_real
504     msg 3, "*** >> main preloading triggered..."
505     if $preloader_running
506         msg 3, "*** >>>>>> already running, return <<<<<<<<"
507         return
508     end
509     $preloader_running = true
510     if $mainview.get_shown_entry
511         if get_mem > $config['cache-memory-use-figure']
512             msg 3, "too much RSS, stopping preloading, triggering GC"
513             $preloader_running = false
514             gc
515             get_mem
516             return
517         end
518         index = $allentries.index($mainview.get_shown_entry)
519         for j in 1 .. $config['preload-distance'].to_i
520
521             i = index + j
522             if i < $allentries.size
523                 $allentries[i].pixbuf_main(false)
524             end
525             #- in case just loaded another directory
526             if $preloader_force_exit
527                 $preloader_running = false
528                 $preloader_force_exit = false
529                 return
530             end
531             #- in case moved fast
532             if index != $allentries.index($mainview.get_shown_entry)
533                 msg 3, "*** >>>> moved already, rerun"
534                 $preloader_running = false
535                 run_preloader_real
536                 return
537             end
538
539             i = index - j
540             if i >= 0
541                 $allentries[i].pixbuf_main(false)
542             end
543             #- in case just loaded another directory
544             if $preloader_force_exit
545                 $preloader_running = false
546                 $preloader_force_exit = false
547                 return
548             end
549             #- in case moved fast
550             if index != $allentries.index($mainview.get_shown_entry)
551                 msg 3, "*** >>>> moved already, rerun"
552                 $preloader_running = false
553                 run_preloader_real
554                 return
555             end
556         end
557         free_cache
558     end
559     $preloader_running = false
560     msg 3, "*** << main preloading finished"
561 end
562
563 def run_preloader
564     if ! $preloader_allowed
565         msg 3, "*** preloader not yet allowed"
566         return
567     end
568     Gtk.timeout_add(10) {
569         run_preloader_real
570         false
571     }
572 end
573
574 class MainView < Gtk::DrawingArea
575
576     @@borders_thickness = 5
577     @@borders_length = 25
578
579     def MainView.borders_thickness
580         return @@borders_thickness
581     end
582
583     def MainView.get_usable_width(available_width)
584         return available_width - ($videoborder_pixbuf.width + @@borders_thickness) * 2
585     end
586
587     def MainView.get_usable_height(available_height)
588         return available_height - @@borders_thickness * 2
589     end
590     
591     def initialize
592         super()
593         signal_connect('expose-event') { draw }
594         signal_connect('configure-event') { update_shown }
595     end
596
597     def set_shown_entry(entry)
598         t1 = Time.now
599         if ! entry.nil? && entry == @entry
600             return
601         end
602         if ! entry.nil?
603             if ! entry.button
604                 #- not loaded yet
605                 return
606             else
607                 entry.button.grab_focus
608             end
609         end
610         @entry = entry
611         redraw
612         run_preloader
613         msg 3, "entry shown in: #{Time.now - t1} s"
614     end
615
616     def get_shown_entry
617         return @entry
618     end
619
620     def show_next_entry(entry)
621         index = $allentries.index(entry) + 1
622         if index < $allentries.size
623             set_shown_entry($allentries[index])
624         end
625     end
626
627     def redraw
628         if ! update_shown
629             return
630         end
631         w, h = window.size
632         window.begin_paint(Gdk::Rectangle.new(0, 0, w, h))
633         window.clear
634         draw
635         window.end_paint
636         @entry and sb_msg(_("Selected %s") % @entry.get_beautified_name)
637         Gtk.main_iteration while Gtk.events_pending?
638     end
639
640     def update_shown
641         if @entry
642             $interrupt_loading = false
643             pixbuf = @entry.pixbuf_main(true)
644             $interrupt_loading = true
645             if pixbuf
646                 @pixbuf = pixbuf
647                 width, height = window.size 
648                 @xpos = (width - @pixbuf.width)/2
649                 @ypos = (height - @pixbuf.height)/2
650             end
651         else
652             @pixbuf = nil
653         end
654     end
655
656     def draw
657         if @pixbuf
658             window.draw_pixbuf(nil, @pixbuf, 0, 0, @xpos, @ypos, -1, -1, Gdk::RGB::DITHER_NONE, -1, -1)
659             if @entry && @entry.type == 'video'
660                 window.draw_borders($videoborder_pixbuf, @xpos - $videoborder_pixbuf.width, @xpos + @pixbuf.width, @ypos, @ypos + @pixbuf.height)
661             end
662             if ! @entry.outline_color.nil?
663                 gc = Gdk::GC.new(window)
664                 colormap.alloc_color(@entry.outline_color, false, true)
665                 gc.set_foreground(@entry.outline_color)
666                 if @entry && @entry.type == 'video'
667                     xleft = @xpos - $videoborder_pixbuf.width
668                     xright = @xpos + @pixbuf.width + $videoborder_pixbuf.width
669                 else
670                     xleft = @xpos
671                     xright = @xpos + @pixbuf.width
672                 end
673                 window.draw_polygon(gc, true, [[xleft - @@borders_thickness, @ypos - @@borders_thickness],
674                                                [xright + @@borders_thickness, @ypos - @@borders_thickness],
675                                                [xright + @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
676                                                [xleft - @@borders_thickness, @ypos + @pixbuf.height + @@borders_thickness],
677                                                [xleft - @@borders_thickness, @ypos - 1],
678                                                [xleft - 1, @ypos - 1],
679                                                [xleft - 1, @ypos + @pixbuf.height + 1],
680                                                [xright + 1, @ypos + @pixbuf.height + 1],
681                                                [xright + 1, @ypos - 1],
682                                                [xleft - @@borders_thickness, @ypos - 1]])
683             end
684         end
685     end
686 end
687
688 def autoscroll_if_needed(button)
689     xpos_left = button.allocation.x
690     xpos_right = button.allocation.x + button.allocation.width
691     hadj = $imagesline_sw.hadjustment
692     current_minx_visible = hadj.value
693     current_maxx_visible = hadj.value + hadj.page_size
694     if xpos_left < current_minx_visible
695         #- autoscroll left
696         newval = hadj.value - (current_minx_visible - xpos_left)
697         hadj.value = newval
698         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
699     elsif xpos_right > current_maxx_visible
700         #- autoscroll right
701         newval = hadj.value + (xpos_right - current_maxx_visible)
702         if newval > hadj.upper - hadj.page_size
703             newval = hadj.upper - hadj.page_size
704         end
705         hadj.value = newval
706         button.queue_draw  #- TOREMOVE: the visual focus is displayed incorrectly
707     end
708 end
709
710 def show_popup(parent, msg, *options)
711     dialog = Gtk::Dialog.new
712     if options[0]
713         options = options[0]
714     else
715         options = {}
716     end
717     if options[:title]
718         dialog.title = options[:title]
719     else
720         dialog.title = utf8(_("Booh message"))
721     end
722     lbl = Gtk::Label.new
723     if options[:nomarkup]
724         lbl.text = msg
725     else
726         lbl.markup = msg
727     end
728     if options[:centered]
729         lbl.set_justify(Gtk::Justification::CENTER)
730     end
731     if options[:selectable]
732         lbl.selectable = true
733     end
734     if options[:topwidget]
735         dialog.vbox.add(options[0][:topwidget])
736     end
737     if options[:scrolled]
738         sw = Gtk::ScrolledWindow.new(nil, nil)
739         sw.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC)
740         sw.add_with_viewport(lbl)
741         dialog.vbox.add(sw)
742         dialog.set_default_size(500, 600)
743     else
744         dialog.vbox.add(lbl)
745         dialog.set_default_size(200, 120)
746     end
747     if options[:bottomwidget]
748         dialog.vbox.add(options[:bottomwidget])
749     end
750     if options[:okcancel]
751         dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
752     end
753     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
754
755     if options[:pos_centered]
756         dialog.window_position = Gtk::Window::POS_CENTER
757     else
758         dialog.window_position = Gtk::Window::POS_MOUSE
759     end
760
761     if options[:linkurl]
762         linkbut = Gtk::Button.new('')
763         linkbut.child.markup = "<span foreground=\"#00000000FFFF\" underline=\"single\">#{options[0][:linkurl]}</span>"
764         linkbut.signal_connect('clicked') {
765             open_url(options[0][:linkurl] + '/index.html')
766             dialog.response(Gtk::Dialog::RESPONSE_OK)
767             set_mousecursor_normal
768         }
769         linkbut.relief = Gtk::RELIEF_NONE
770         linkbut.signal_connect('enter-notify-event') { set_mousecursor(Gdk::Cursor::HAND2, linkbut); false }
771         linkbut.signal_connect('leave-notify-event') { set_mousecursor(nil, linkbut); false }
772         dialog.vbox.add(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(linkbut))
773     end
774
775     dialog.show_all
776
777     if options[:stuff_connector]
778         options[:stuff_connector].call({ :dialog => dialog })
779     end
780                                         
781     if !options[:not_transient]
782         dialog.transient_for = parent
783         dialog.run { |response|
784             if options[:data_getter]
785                 options[:data_getter].call
786             end
787             dialog.destroy
788             if options[:okcancel]
789                 return response == Gtk::Dialog::RESPONSE_OK
790             end
791         }
792     else
793         dialog.signal_connect('response') { dialog.destroy }
794     end
795 end
796
797 def view_entry(entry)
798     if entry.type == 'image'
799         show_popup($main_window,
800                    utf8(`exif -m '#{entry.path}'`),
801                    { :title => utf8(_("EXIF data of %s") % File.basename(entry.path)), :nomarkup => true, :scrolled => true, :not_transient => true })
802     else
803         cmd = from_utf8($config['video-viewer']).gsub('%f', "'#{entry.path}'") + ' &'
804         msg 2, cmd
805         system(cmd)
806     end
807 end
808
809 def thumbnail_keypressed(entry, event)
810     if event.state & Gdk::Window::MOD1_MASK != 0
811         #- ALT pressed: Alt-Left and Alft-Right rotate
812         if event.keyval == Gdk::Keyval::GDK_Left || event.keyval == Gdk::Keyval::GDK_Right
813             if event.keyval == Gdk::Keyval::GDK_Left
814                 entry.angle = (entry.angle - 90) % 360
815             else
816                 entry.angle = (entry.angle + 90) % 360
817             end
818             entry.free_pixbuf_full
819             entry.free_pixbuf_main
820             entry.free_pixbuf_thumbnail
821             $mainview.redraw
822             entry.image.pixbuf = entry.pixbuf_thumbnail
823             if $config['rotate-set-exif'] == 'true' && entry.type == 'image'
824                 Exif.set_orientation(entry.path, angle_to_exif_orientation(entry.angle))
825             end
826         end
827
828     elsif event.state & Gdk::Window::CONTROL_MASK != 0
829         #- CONTROL pressed: Ctrl-z and Ctrl-r for undo/redo
830         if event.keyval == Gdk::Keyval::GDK_z
831             perform_undo
832         end
833         if event.keyval == Gdk::Keyval::GDK_r
834             perform_redo
835         end
836
837     else
838         removed_before = entry.removed
839         label_before = entry.labeled
840
841         if event.keyval == Gdk::Keyval::GDK_Delete
842             entry.removed = true
843             entry.labeled = nil
844             entry.show_bg
845             $mainview.show_next_entry(entry)
846             update_visibility(entry)
847
848             save_undo(_("set for removal"),
849                       proc {
850                           entry.removed = removed_before
851                           entry.labeled = label_before
852                           entry.show_bg
853                           update_visibility(entry)
854                           if entry.button.visible?
855                               $mainview.set_shown_entry(entry)
856                           end
857                           proc {
858                               entry.removed = true
859                               entry.labeled = nil
860                               entry.show_bg
861                               update_visibility(entry)
862                               if entry.button.visible?
863                                   $mainview.set_shown_entry(entry)
864                               end
865                           }
866                       })
867
868         elsif event.keyval == Gdk::Keyval::GDK_space
869             if entry.labeled
870                 msg = _("Cleared label")
871             elsif entry.removed
872                 msg = _("Cleared set for removal")
873             end
874             entry.removed = false
875             entry.labeled = nil
876             entry.show_bg
877             $mainview.show_next_entry(entry)
878
879             save_undo(msg,
880                       proc {
881                           entry.removed = removed_before
882                           entry.labeled = label_before
883                           entry.show_bg
884                           $mainview.set_shown_entry(entry)
885                           proc {
886                               entry.removed = false
887                               entry.labeled = nil
888                               entry.show_bg
889                               $mainview.set_shown_entry(entry)
890                           }
891                       })
892
893         elsif event.keyval == Gdk::Keyval::GDK_Return
894             view_entry(entry)
895
896         else
897             char = [ Gdk::Keyval.to_unicode(event.keyval) ].pack("C*")
898             if char =~ /^[a-zA-z0-9]$/
899                 label = $labels[char]
900                 
901                 if label.nil?
902                     vb = Gtk::VBox.new(false, 0)
903                     vb.pack_start(entry = Gtk::Entry.new.set_text(char), false, false)
904                     vb.pack_start(Gtk::Alignment.new(0.5, 0.5, 0, 0).add(bt = Gtk::ColorButton.new))
905                     color = bt.color = Gdk::Color.new(16384 + rand(49151), 16384 + rand(49151), 16384 + rand(49151))
906                     bt.signal_connect('color-set') { color = bt.color }
907                     text = nil
908                     entry.signal_connect('changed') {  #- cannot add a new label with first letter of an existing label
909                         while $labels.has_key?(entry.text[0,1])
910                             entry.text = entry.text.sub(/./, '')
911                         end
912                     }
913                     if show_popup($main_window,
914                                   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,
915                                   { :okcancel => true, :bottomwidget => vb, :data_getter => proc { text = entry.text },
916                                     :stuff_connector => proc { |stuff| entry.select_region(0, 0)
917                                                                        entry.position = -1
918                                                                        entry.signal_connect('activate') { stuff[:dialog].response(Gtk::Dialog::RESPONSE_OK) } } } )
919                         if text.length > 0
920                             char = text[0,1]  #- in case it changed
921                             label = Label.new(text)
922                             label.color = color
923                             $labels[char] = label
924                             $ordered_labels << label
925                             lbl = Gtk::Label.new.set_markup('<b>(' + char + ')</b>' + text[1..-1]).set_justify(Gtk::Justification::CENTER)
926                             $labels_vbox.pack_start(label.button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
927                             label.button.active = true
928                             label.button.signal_connect('toggled') { update_all_visibilities }
929                             evt.modify_bg(Gtk::StateType::NORMAL, label.color)
930                             evt.modify_bg(Gtk::StateType::PRELIGHT, label.color.lighter.lighter)
931                             evt.modify_bg(Gtk::StateType::ACTIVE, label.color.lighter)
932                         end
933                     end
934
935                 else
936                     entry.removed = false
937                     entry.labeled = label
938                     entry.show_bg
939                     $mainview.show_next_entry(entry)
940                     update_visibility(entry)
941
942                     save_undo(_("set label"),
943                               proc {
944                                   entry.removed = removed_before
945                                   entry.labeled = label_before
946                                   entry.show_bg
947                                   update_visibility(entry)
948                                   if entry.button.visible?
949                                       $mainview.set_shown_entry(entry)
950                                   end
951                                   proc {
952                                       entry.removed = false
953                                       entry.labeled = label
954                                       entry.show_bg
955                                       update_visibility(entry)
956                                       if entry.button.visible?
957                                           $mainview.set_shown_entry(entry)
958                                       end
959                                   }
960                               })
961                 end
962             end
963         end
964     end
965 end
966
967 def sb_msg(msg)
968     $statusbar.pop(0)
969     if msg
970         $statusbar.push(0, utf8(msg))
971     end
972 end
973
974 def show_entry(entry, i, tips)
975     #- scope entry
976     #msg 3, "showing entry #{entry}"
977     entry.image = Gtk::Image.new(entry.pixbuf_thumbnail)
978     if entry.type == 'video'
979         entry.button = Gtk::Button.new.add(Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
980                                            pack_start(entry.image).
981                                            pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false))
982         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
983         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
984     else
985         entry.button = Gtk::Button.new.add(entry.image)
986     end
987     tips.set_tip(entry.button, entry.get_beautified_name, nil)
988     $imagesline.pack_start(entry.alignment = Gtk::Alignment.new(0.5, 1, 0, 0).add(entry.button).show_all, false, false)
989     entry.button.signal_connect('clicked') {
990         if (last_shown = $mainview.get_shown_entry) != entry
991             entry.alignment.set(0.5, 0, 0, 0)
992             last_shown and last_shown.alignment.set(0.5, 1, 0, 0)
993             $mainview.set_shown_entry(entry)
994         end
995     }
996     entry.button.signal_connect('button-press-event') { |w, event|
997         if entry.type == 'video' && event.event_type == Gdk::Event::BUTTON2_PRESS
998             video_view(entry)
999         end
1000     }
1001     entry.button.signal_connect('focus-in-event') { autoscroll_if_needed(entry.button); entry.button.clicked }
1002     entry.button.signal_connect('key-press-event') { |w, e| thumbnail_keypressed(entry, e) }
1003     if i == 0
1004         entry.button.grab_focus
1005     end
1006     update_visibility(entry)
1007     Gtk.main_iteration while Gtk.events_pending?
1008 end
1009
1010 def show_entries(allentries)
1011     sb_msg(_("Loading images..."))
1012     $loading_progressbar.fraction = 0
1013     $loading_progressbar.text = utf8(_("Loading... %d%") % 0)
1014     $loading_progressbar.show
1015     t1 = Time.now
1016     total_loaded_files = 0
1017     total_loaded_size = 0
1018     i = 0
1019     tips = Gtk::Tooltips.new
1020     while i < allentries.size
1021 #        printf "%d %s\n", i, __LINE__
1022         entry = allentries[i]
1023         if i == 0
1024             loaded_pixbuf = entry.pixbuf_main(false)
1025         else
1026             loaded_pixbuf = entry.pixbuf_thumbnail
1027         end
1028         if $allentries != allentries
1029             #- loaded another directory while this one was not yet finished
1030             msg 3, "allentries differ, stopping this deprecated load"
1031             return
1032         end
1033
1034         if loaded_pixbuf
1035             show_entry(entry, i, tips)
1036             if $allentries != allentries
1037                 #- loaded another directory while this one was not yet finished
1038                 msg 3, "allentries differ, stopping this deprecated load"
1039                 return
1040             end
1041
1042             total_loaded_size += file_size(entry.path)
1043             total_loaded_files += 1
1044             i += 1
1045             if i > $config['preload-distance'].to_i && i <= $config['preload-distance'].to_i * 2
1046                 #- when we're at preload distance, beging preloading to preload distance
1047                 allentries[i - $config['preload-distance'].to_i].pixbuf_main(false)
1048             end
1049             if i == $config['preload-distance'].to_i * 2 + 1
1050                 #- when we're after double preload distance, activate normal preloading
1051                 $preloader_allowed = true
1052             end
1053             
1054         else
1055             allentries.delete_at(i)
1056         end
1057         $loading_progressbar.fraction = i.to_f / allentries.size
1058         $loading_progressbar.text = utf8(_("Loading... %d%") % (100 * $loading_progressbar.fraction))
1059         if $quit
1060             return
1061         end
1062     end
1063     if i <= $config['preload-distance'].to_i * 2
1064         #- not yet preloaded correctly
1065         $preloader_allowed = true
1066         run_preloader
1067     end
1068     sb_msg(_("%d images of total %s kB loaded in %3.2f seconds.") % [ total_loaded_files, commify(total_loaded_size / 1024), Time.now - t1 ])
1069     $loading_progressbar.hide
1070     $execute.sensitive = true
1071 end
1072
1073 def reset_all
1074     reset_labels
1075     reset_thumbnails
1076     $mainview.set_shown_entry(nil)
1077     sb_msg(nil)
1078     $preloader_allowed = false
1079     $execute.sensitive = false
1080 end
1081
1082 def open_dir(*paths)
1083     #- remove visual stuff, so that user will see something is happening
1084     reset_all
1085     sb_msg(_("Scanning source directory..."))
1086     Gtk.main_iteration while Gtk.events_pending?
1087
1088     for path in paths
1089         path = File.expand_path(path.sub(%r|/$|, ''))
1090         $workingdir = path
1091         entries = []
1092         if File.directory?(path)
1093             examined_dirs = `find '#{path}' -type d -follow`.sort.collect { |v| v.chomp }
1094             #- validate first
1095             examined_dirs.each { |dir|
1096                 if dir =~ /'/
1097                     return utf8(_("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir)
1098                 end
1099                 Dir.entries(dir).each { |file|
1100                     if file =~ /'/ && type = entry2type(file) && type == 'video'
1101                         return utf8(_("Videos can't contain a single quote character ('), sorry: %s") % "#{dir}/#{file}")
1102                     end
1103                 }
1104             }
1105             
1106             #- scan for populate second
1107             examined_dirs.each { |dir|
1108                 if File.basename(dir) =~ /^\./
1109                     msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
1110                     next
1111                 end
1112                 entries += Dir.entries(dir).collect { |file| File.join(dir, file) }
1113             }
1114
1115         else
1116             entries << path
1117         end
1118
1119         if $sort_by_exif_date
1120             dates = {}
1121             entries.each { |file|
1122                 date_time = Exif.datetimeoriginal(file)
1123                 if ! date_time.nil?
1124                     dates[file] = date_time
1125                 end
1126             }
1127             entries = smartsort(entries, dates)
1128         else
1129             entries.sort!
1130         end
1131         entries.each { |file|
1132             type = entry2type(file)
1133             if type
1134                 if File.directory?(path)
1135                     $allentries << Entry.new(file, type, file[path.length + 1 .. -1])
1136                 else
1137                     $allentries << Entry.new(file, type, file)
1138                 end
1139             end
1140         }
1141     end
1142     return nil
1143 end
1144
1145 def open_dir_popup
1146     fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory to work with")),
1147                                     nil,
1148                                     Gtk::FileChooser::ACTION_SELECT_FOLDER,
1149                                     nil,
1150                                     [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1151     fc.transient_for = $main_window
1152     if $workingdir
1153         fc.current_folder = $workingdir
1154     end
1155     ok = false
1156     load = false
1157     while !ok
1158         if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1159             msg = open_dir(fc.filename)
1160             if msg
1161                 show_popup(fc, msg)
1162                 ok = false
1163             else
1164                 ok = true
1165                 load = true
1166             end
1167         else
1168             ok = true
1169         end
1170     end
1171     fc.destroy
1172     if load
1173         show_entries($allentries)
1174     end
1175 end
1176
1177 def try_quit(*options)
1178     Gtk.main_quit
1179     $quit = true
1180 end
1181
1182 def execute
1183     dialog = Gtk::Dialog.new
1184     dialog.title = utf8(_("Booh message"))
1185
1186     vb1 = Gtk::VBox.new(false, 5)
1187     label = Gtk::Label.new.set_markup(utf8(_("You're about to <b>execute</b> actions on the marked images.\nPlease confirm below the actions. You cannot undo this operation!")))
1188     vb1.pack_start(label, false, false)
1189
1190     lastpath = $workingdir
1191
1192     table = Gtk::Table.new(0, 0, false)
1193     table.set_row_spacings(5)
1194     table.set_column_spacings(5)
1195     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)
1196     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)
1197     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)
1198     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)
1199     add_row = proc { |row, name, color, truthproc, normal|
1200         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)),
1201                      0, 1, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1202         counter = 0
1203         examples = Gtk::HBox.new(false, 5)
1204         $allentries.each { |entry|
1205             if truthproc.call(entry)
1206                 counter += 1
1207                 if counter < 4
1208                     thumbnail = Gtk::Image.new(entry.pixbuf_thumbnail)
1209                     if entry.type == 'video'
1210                         thumbnail = Gtk::HBox.new.pack_start(da1 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false).
1211                                                   pack_start(thumbnail).
1212                                                   pack_start(da2 = Gtk::DrawingArea.new.set_size_request($videoborder_pixbuf.width, -1), false, false)
1213                         da1.signal_connect('realize') { da1.window.set_back_pixmap($videoborder_pixmap, false) }
1214                         da2.signal_connect('realize') { da2.window.set_back_pixmap($videoborder_pixmap, false) }
1215                     end
1216                     examples.pack_start(thumbnail, false, false)
1217                 elsif counter == 4
1218                     examples.pack_start(Gtk::Label.new.set_markup("<b>...</b>"), false, false)
1219                 end
1220             end
1221         }
1222         table.attach(Gtk::Label.new(counter.to_s).set_justify(Gtk::Justification::CENTER), 1, 2, row, row + 1, 0, 0, 5, 5)
1223         table.attach(examples, 2, 3, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1224
1225         combostore = Gtk::ListStore.new(Gdk::Pixbuf, String)
1226         iter = combostore.append
1227         if normal
1228             iter[0] = $main_window.render_icon(Gtk::Stock::GO_FORWARD, Gtk::IconSize::MENU)
1229             iter[1] = utf8(_("Move to:"))
1230             iter = combostore.append
1231             iter[0] = $main_window.render_icon(Gtk::Stock::PASTE, Gtk::IconSize::MENU)
1232             iter[1] = utf8(_("Copy to:"))
1233         else
1234             iter[0] = $main_window.render_icon(Gtk::Stock::DELETE, Gtk::IconSize::MENU)
1235             iter[1] = utf8(_("Permanently remove"))
1236         end
1237         iter = combostore.append
1238         iter[0] = $main_window.render_icon(Gtk::Stock::MEDIA_STOP, Gtk::IconSize::MENU)
1239         iter[1] = utf8(_("Do nothing"))
1240         combo = Gtk::ComboBox.new(combostore)
1241         combo.active = 0
1242         renderer = Gtk::CellRendererPixbuf.new
1243         combo.pack_start(renderer, false)
1244         combo.set_attributes(renderer, :pixbuf => 0)
1245         renderer = Gtk::CellRendererText.new
1246         combo.pack_start(renderer, true)
1247         combo.set_attributes(renderer, :text => 1)
1248
1249         if normal
1250             pathbutton = Gtk::Button.new.add(pathlabel = Gtk::Label.new.set_markup(utf8(_("<i>(unset)</i>"))))
1251             pathbutton.signal_connect('clicked') {
1252                 fc = Gtk::FileChooserDialog.new(utf8(_("Specify the directory where to move the pictures to")),
1253                                                 nil,
1254                                                 Gtk::FileChooser::ACTION_SELECT_FOLDER,
1255                                                 nil,
1256                                                 [Gtk::Stock::OPEN, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1257                 fc.transient_for = dialog
1258                 if lastpath
1259                     fc.current_folder = lastpath
1260                 end
1261                 if fc.run == Gtk::Dialog::RESPONSE_ACCEPT
1262                     pathlabel.text = fc.filename
1263                     pathlabel.set_alignment(0, 0.5)
1264                 end
1265                 lastpath = fc.filename
1266                 fc.destroy
1267             }
1268             combo.signal_connect('changed') {
1269                 pathbutton.sensitive = combo.active <= 1
1270             }
1271             vb = Gtk::VBox.new(false, 5)
1272             vb.pack_start(combo, false, false)
1273             vb.pack_start(pathbutton, false, false)
1274             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(vb), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1275             { :combo => combo, :pathlabel => pathlabel }
1276         else
1277             table.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(combo), 3, 4, row, row + 1, Gtk::FILL, Gtk::FILL, 5, 5)
1278             { :combo => combo }
1279         end
1280     }
1281     stuff = {}
1282     stuff['toremove'] = add_row.call(1, utf8(_("<i>to remove</i>")), $color_red, proc { |entry| entry.removed }, false)
1283     $ordered_labels.each_with_index { |label, row| stuff[label] = add_row.call(row + 2, label.name, label.color, proc { |entry| entry.labeled == label }, true) }
1284     vb1.pack_start(sw = Gtk::ScrolledWindow.new(nil, nil).add_with_viewport(table).set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC), true, true)
1285
1286     toremove_amount = $allentries.find_all { |entry| entry.removed }.size
1287     toremove_size = commify($allentries.find_all { |entry| entry.removed }.collect { |entry| file_size(entry.path) }.sum / 1024)
1288     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 ]))
1289     if toremove_amount > 0
1290         vb1.pack_start(check_removal, false, false)
1291         stuff['toremove'][:combo].signal_connect('changed') { |widget|
1292             check_removal.sensitive = widget.active == 0
1293         }
1294     end
1295
1296     dialog.vbox.add(vb1)
1297
1298     dialog.set_default_size(800, 600)
1299     dialog.add_button(Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL)
1300     dialog.add_button(Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK)
1301     dialog.window_position = Gtk::Window::POS_MOUSE
1302     dialog.transient_for = $main_window
1303
1304     dialog.show_all
1305
1306     while true
1307         dialog.run { |response|        
1308             if response == Gtk::Dialog::RESPONSE_OK
1309                 if toremove_amount > 0 && ! check_removal.active? && stuff['toremove'][:combo].active == 0
1310                     show_popup(dialog, utf8(_("You have not confirmed that you noticed the permanent removal of the pictures marked for deletion.")))
1311                     break
1312                 end
1313                 problem = false
1314                 label2entries = {}
1315                 $labels.values.each { |label| label2entries[label] = [] }
1316                 $allentries.each { |entry| entry.labeled and label2entries[entry.labeled] << entry }
1317                 stuff.keys.each { |key|
1318                     if key.is_a?(Label) && stuff[key][:combo].active <= 1
1319                         destination = stuff[key][:pathlabel].text
1320                         if destination[0] != ?/
1321                             show_popup(dialog, utf8(_("You have not selected a directory where to move/copy %s.") % key.name))
1322                             problem = true
1323                             break
1324                         end
1325                         begin
1326                             Dir.mkdir(destination)
1327                         rescue Errno::EEXIST
1328                         end
1329                         begin
1330                             st = File.stat(destination)
1331                         rescue
1332                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not createable.") % [destination, key.name]))
1333                             problem = true
1334                             break
1335                         end
1336                         if ! st.directory? || ! st.writable?
1337                             show_popup(dialog, utf8(_("Directory %s, where to move/copy %s, is not valid or not writable.") % [destination, key.name]))
1338                             problem = true
1339                             break
1340                         end
1341                         label2entries[key].each { |entry|
1342                             begin
1343                                 File.stat(File.join(destination, File.basename(entry.path)))
1344                                 show_popup(dialog, utf8(_("Sorry, a file '%s' already exists in directory '%s'.") % [ File.basename(entry.path), destination ]))
1345                                 problem = true
1346                                 break
1347                             rescue
1348                             end
1349                         }
1350                         if problem
1351                             break
1352                         end
1353                     end
1354                 }
1355                 if ! problem
1356                     begin
1357                         moved = 0
1358                         copied = 0
1359                         stuff.keys.each { |key|
1360                             if key.is_a?(Label) && stuff[key][:combo].active <= 1
1361                                 destination = stuff[key][:pathlabel].text
1362                                 label2entries[key].each { |entry|
1363                                     if stuff[key][:combo].active == 0
1364                                         system("mv '#{entry.path}' '#{destination}'") or raise "failed to move '#{entry.path}'"
1365                                         moved += 1
1366                                     elsif stuff[key][:combo].active == 1
1367                                         system("cp -dp '#{entry.path}' '#{destination}'") or raise "failed to copy '#{entry.path}'"
1368                                         copied += 1
1369                                     end
1370                                 }
1371                             end
1372                         }
1373                         removed = 0
1374                         if stuff['toremove'][:combo].active == 0
1375                             $allentries.each { |entry|
1376                                 if entry.removed
1377                                     File.delete(entry.path)
1378                                     removed += 1
1379                                 end
1380                             }
1381                         end
1382                     rescue
1383                         msg 1, "woops: #{$!}"
1384                         show_popup(dialog, utf8(_("Unexpected error: '%s'.") % $!))
1385                     end
1386                     show_popup(dialog, utf8(_("Successfully moved %d files, copied %d file, and removed %d files.") % [ moved, copied, removed ]))
1387                     dialog.destroy
1388                     reset_all
1389                     return
1390                 end
1391
1392             else
1393                 dialog.destroy
1394                 return
1395             end
1396         }
1397     end
1398 end
1399
1400 def update_visibility(entry)
1401     if ! entry.button
1402         #- not yet loaded
1403         return
1404     end
1405     if entry.labeled
1406         if entry.labeled.button.active?
1407             entry.button.show
1408         else
1409             entry.button.hide
1410         end
1411     elsif entry.removed
1412         if $toremove_button.active?
1413             entry.button.show
1414         else
1415             entry.button.hide
1416         end
1417     else
1418         if $unlabelled_button.active?
1419             entry.button.show
1420         else
1421             entry.button.hide
1422         end
1423     end
1424 end
1425         
1426 def update_all_visibilities
1427     $allentries.each { |entry|
1428         update_visibility(entry)
1429     }
1430     shown = $mainview.get_shown_entry
1431     if shown.nil?
1432         return
1433     end
1434     while shown.button && ! shown.button.visible? && shown != $allentries.last
1435         shown = $allentries[$allentries.index(shown) + 1]
1436     end 
1437     if shown.button && shown.button.visible?
1438         shown.button.grab_focus
1439         return
1440     end
1441     $allentries.reverse.each { |entry|
1442         if entry.button && entry.button.visible?
1443             entry.button.grab_focus
1444             return
1445         end
1446     }
1447 end
1448
1449 def preferences
1450     dialog = Gtk::Dialog.new(utf8(_("Edit preferences")),
1451                              $main_window,
1452                              Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT,
1453                              [Gtk::Stock::OK, Gtk::Dialog::RESPONSE_OK],
1454                              [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
1455
1456     tooltips = Gtk::Tooltips.new
1457
1458     table_y = 0
1459
1460     dialog.vbox.add(tbl = Gtk::Table.new(0, 0, false))
1461     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Command for watching videos: ")))),
1462                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1463     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(video_viewer_entry = Gtk::Entry.new.set_text($config['video-viewer']).set_size_request(250, -1)),
1464                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1465     tooltips.set_tip(video_viewer_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mplayer %f")), nil)
1466
1467     table_y += 1
1468     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Browser's command: ")))),
1469                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1470     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(browser_entry = Gtk::Entry.new.set_text($config['browser'])),
1471                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1472     tooltips.set_tip(browser_entry, utf8(_("Use %f to specify the filename;\nfor example: /usr/bin/mozilla-firefox -remote 'openURL(%f,new-window)' || /usr/bin/mozilla-firefox %f")), nil)
1473
1474     table_y += 1
1475     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Thumbnails height: ")))),
1476                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1477     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(thumbnails_height = Gtk::SpinButton.new(32, 256, 16).set_value($config['thumbnails-height'].to_i)),
1478                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1479     tooltips.set_tip(thumbnails_height, utf8(_("The desired height of the thumbnails in the thumbnails line of the bottom")), nil)
1480
1481     table_y += 1
1482     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Preloading distance: ")))),
1483                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1484     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)),
1485                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1486     tooltips.set_tip(preload_distance, utf8(_("Amount of pictures preloaded left and right to the currently shown")), nil)
1487
1488     table_y += 1
1489     tbl.attach(Gtk::Alignment.new(1, 0.5, 0, 0).add(Gtk::Label.new.set_markup(utf8(_("Cache memory use: ")))),
1490                0, 1, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1491     tbl.attach(Gtk::Alignment.new(0, 0.5, 1, 0).add(cache_vbox = Gtk::VBox.new(false, 0)),
1492                1, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1493     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_memfree_radio = Gtk::RadioButton.new(''), false, false).
1494                                                   pack_start(cache_memfree_spin = Gtk::SpinButton.new(0, 100, 10), false, false).
1495                                                   pack_start(cache_memfree_label = Gtk::Label.new(utf8(_("% of free memory"))), false, false), false, false)
1496     cache_memfree_spin.signal_connect('value-changed') { cache_memfree_radio.active = true }
1497     tooltips.set_tip(cache_memfree_spin, utf8(_("Percentage of free memory (+ buffers/cache) measured at startup")), nil)
1498     cache_vbox.pack_start(Gtk::HBox.new(false, 0).pack_start(cache_specify_radio = Gtk::RadioButton.new(cache_memfree_radio, ''), false, false).
1499                                                   pack_start(cache_specify_spin = Gtk::SpinButton.new(0, 4000, 50), false, false).
1500                                                   pack_start(cache_specify_label = Gtk::Label.new(utf8(_("MB"))).set_sensitive(false), false, false), false, false)
1501     cache_specify_spin.signal_connect('value-changed') { cache_specify_radio.active = true }
1502     cache_memfree_radio.signal_connect('toggled') {
1503         if cache_memfree_radio.active?
1504             cache_memfree_label.sensitive = true
1505             cache_specify_label.sensitive = false
1506         else
1507             cache_specify_label.sensitive = true
1508             cache_memfree_label.sensitive = false
1509         end
1510     }
1511     tooltips.set_tip(cache_specify_spin, utf8(_("Amount of memory in megabytes")), nil)
1512     if $config['cache-memory-use'] =~ /memfree_(\d+)/
1513         cache_memfree_spin.value = $1.to_i
1514     else
1515         cache_specify_spin.value = $config['cache-memory-use'].to_i
1516     end
1517
1518     table_y += 1
1519     tbl.attach(update_exif_orientation_check = Gtk::CheckButton.new(utf8(_("Update file's EXIF orientation when rotating a picture"))),
1520                0, 2, table_y, table_y + 1, Gtk::FILL, Gtk::SHRINK, 2, 2)
1521     tooltips.set_tip(update_exif_orientation_check, utf8(_("When rotating a picture (Alt-Right/Left), also update EXIF orientation in the file itself")), nil)
1522     update_exif_orientation_check.active = $config['rotate-set-exif'] == 'true'
1523
1524     dialog.vbox.show_all
1525     dialog.run { |response|
1526         if response == Gtk::Dialog::RESPONSE_OK
1527             $config['video-viewer'] = from_utf8(video_viewer_entry.text)
1528             $config['browser'] = from_utf8(browser_entry.text)
1529             $config['thumbnails-height'] = thumbnails_height.value
1530             $config['preload-distance'] = preload_distance.value
1531             $config['rotate-set-exif'] = update_exif_orientation_check.active?.to_s
1532             if cache_memfree_radio.active?
1533                 $config['cache-memory-use'] = "memfree_#{cache_memfree_spin.value}%"
1534             else
1535                 $config['cache-memory-use'] = cache_specify_spin.value
1536             end
1537             set_cache_memory_use_figure
1538         end
1539     }
1540     dialog.destroy
1541 end
1542
1543 def perform_undo
1544     if $undo_mb.sensitive?
1545         $redo_mb.sensitive = true
1546         if not more_undoes = UndoHandler.undo($statusbar)
1547             $undo_mb.sensitive = false
1548         end
1549     end
1550 end
1551
1552 def perform_redo
1553     if $redo_mb.sensitive?
1554         $undo_mb.sensitive = true
1555         if not more_redoes = UndoHandler.redo($statusbar)
1556             $redo_mb.sensitive = false
1557         end
1558     end
1559 end
1560
1561 def create_menubar    
1562     #- menu
1563     mb = Gtk::MenuBar.new
1564
1565     filemenu = Gtk::MenuItem.new(utf8(_("_File")))
1566     filesubmenu = Gtk::Menu.new
1567     filesubmenu.append(open      = Gtk::ImageMenuItem.new(Gtk::Stock::OPEN))
1568     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1569     filesubmenu.append($execute  = Gtk::ImageMenuItem.new(Gtk::Stock::EXECUTE).set_sensitive(false))
1570     filesubmenu.append(            Gtk::SeparatorMenuItem.new)
1571     filesubmenu.append(quit      = Gtk::ImageMenuItem.new(Gtk::Stock::QUIT))
1572     filemenu.set_submenu(filesubmenu)
1573     mb.append(filemenu)
1574
1575     open.signal_connect('activate') { open_dir_popup }
1576     $execute.signal_connect('activate') { execute }
1577     quit.signal_connect('activate') { try_quit }
1578
1579     editmenu = Gtk::MenuItem.new(utf8(_("_Edit")))
1580     editsubmenu = Gtk::Menu.new
1581     editsubmenu.append($undo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::UNDO).set_sensitive(false))
1582     editsubmenu.append($redo_mb    = Gtk::ImageMenuItem.new(Gtk::Stock::REDO).set_sensitive(false))
1583     editsubmenu.append(              Gtk::SeparatorMenuItem.new)
1584     editsubmenu.append(prefs       = Gtk::ImageMenuItem.new(Gtk::Stock::PREFERENCES))
1585     editmenu.set_submenu(editsubmenu)
1586     mb.append(editmenu)
1587
1588     $undo_mb.signal_connect('activate') { perform_undo }
1589     $redo_mb.signal_connect('activate') { perform_redo }
1590     prefs.signal_connect('activate') { preferences }
1591     
1592     helpmenu = Gtk::MenuItem.new(utf8(_("_Help")))
1593     helpsubmenu = Gtk::Menu.new
1594     helpsubmenu.append(howto = Gtk::ImageMenuItem.new(Gtk::Stock::HELP))
1595     helpsubmenu.append(speed = Gtk::ImageMenuItem.new(utf8(_("Speedup: key shortcuts"))))
1596     speed.image = Gtk::Image.new("#{$FPATH}/images/stock-info-16.png")
1597     helpsubmenu.append(tutos = Gtk::ImageMenuItem.new(utf8(_("Online tutorials (opens a web-browser)"))))
1598     tutos.image = Gtk::Image.new("#{$FPATH}/images/stock-web-16.png")
1599     helpsubmenu.append(Gtk::SeparatorMenuItem.new)
1600     helpsubmenu.append(about = Gtk::ImageMenuItem.new(Gtk::Stock::ABOUT))
1601     helpmenu.set_submenu(helpsubmenu)
1602     mb.append(helpmenu)
1603
1604     howto.signal_connect('activate') {
1605         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Help</span>
1606
1607 1. Open a directory with <span foreground='darkblue'>File/Open</span>; the classifier will scan it (including subdirectories) and
1608 show thumbnails for all images and videos at the bottom.
1609
1610 2. You can then navigate through images with the <span foreground='darkblue'>Left/Right</span> keyboard keys, or by <span foreground='darkblue'>clicking</span>
1611 on thumbnails.
1612
1613 3. You may associate a <span foreground='darkblue'>label</span> to each thumbnail. Either hit the <span foreground='darkblue'>Delete</span> key to associate
1614 the built-in <i>to remove</i> label, or hit any alphabetical key to associate a label you define.
1615 The first time you hit a key without any label associated, a popup will ask for the full
1616 name of this label, and what color you want. To clear the current label, hit the <span foreground='darkblue'>Space</span> key.
1617
1618 4. To help you better view what thumbnails are associated to your labels, you may <span foreground='darkblue'>hide</span>
1619 some of them by unchecking the labels checkboxes on the left.
1620
1621 5. Once you're finished reviewing all thumbnails, use <span foreground='darkblue'>File/Execute</span> to execute the desired
1622 actions according to associated labels. You can permanently remove (or not) images with
1623 the <i>to remove</i> label, and copy or move images with the labels you defined.
1624 ")), { :pos_centered => true, :not_transient => true })
1625     }
1626     speed.signal_connect('activate') {
1627         show_popup($main_window, utf8(_("<span size='large' weight='bold'>Key shortcuts</span>
1628
1629 <span foreground='darkblue'>Left/Right</span>: move left and right in images
1630 <span foreground='darkblue'>Enter</span>: 'view' current image: for images, display EXIF data; for videos, play it
1631 <span foreground='darkblue'>Alt-Left/Right</span>: rotate current image clockwise/counter-clockwise
1632 <span foreground='darkblue'>Delete</span>: assign the 'to remove' label on current image
1633 <span foreground='darkblue'>Space</span>: clear any label on current image
1634 <span foreground='darkblue'>Control-z</span>: undo
1635 <span foreground='darkblue'>Control-r</span>: redo
1636
1637 Any alphabetical key will assign (or popup for) the associated label on current image.
1638 ")), { :pos_centered => true, :not_transient => true })
1639     }
1640     tutos.signal_connect('activate') { open_url('http://booh.org/tutorial') }
1641     about.signal_connect('activate') { call_about }
1642
1643
1644     #- no toolbar, to save height
1645
1646     return mb
1647 end
1648
1649 def reset_labels
1650     for child in $labels_vbox.children
1651         $labels_vbox.remove(child)
1652     end
1653     $labels_vbox.pack_start(Gtk::Label.new(utf8(_("Labels list:"))).set_justify(Gtk::Justification::CENTER), false, false).show_all
1654     $labels = {}
1655     $ordered_labels = []
1656     lbl = Gtk::Label.new.set_markup(utf8(_("<i>unlabelled</i>")))
1657     $labels_vbox.pack_start($unlabelled_button = Gtk::CheckButton.new.add(Gtk::EventBox.new.add(lbl)).show_all)
1658     $unlabelled_button.active = true
1659     $unlabelled_button.signal_connect('toggled') { update_all_visibilities }
1660     lbl = Gtk::Label.new.set_markup(utf8(_("<i>to remove</i>")))
1661     $labels_vbox.pack_start($toremove_button = Gtk::CheckButton.new.add(evt = Gtk::EventBox.new.add(lbl)).show_all)
1662     $toremove_button.active = true
1663     $toremove_button.signal_connect('toggled') { update_all_visibilities }
1664     evt.modify_bg(Gtk::StateType::NORMAL, $color_red)
1665     evt.modify_bg(Gtk::StateType::PRELIGHT, $color_red.lighter.lighter)
1666     evt.modify_bg(Gtk::StateType::ACTIVE, $color_red.lighter)
1667 end
1668
1669 def reset_thumbnails
1670     $allentries = []
1671     if $preloader_running
1672         $preloader_force_exit = true
1673     end
1674     for child in $imagesline.children
1675         $imagesline.remove(child)
1676     end
1677 end
1678
1679 def create_main_window
1680
1681     $videoborder_pixbuf = Gdk::Pixbuf.new("#{$FPATH}/images/video_border.png")
1682     $videoborder_pixmap, = $videoborder_pixbuf.render_pixmap_and_mask(0)
1683
1684     mb = create_menubar
1685
1686     main_vbox = Gtk::VBox.new(false, 0)
1687     main_vbox.pack_start(mb, false, false)
1688     mainview_hbox = Gtk::HBox.new
1689     mainview_hbox.pack_start(Gtk::Alignment.new(0.5, 0, 1, 1).add(left_vbox = Gtk::VBox.new(false, 5)), false, true)
1690     left_vbox.pack_start(($labels_vbox = Gtk::VBox.new(false, 5)), false, true)
1691     left_vbox.pack_end($loading_progressbar = Gtk::ProgressBar.new.set_text(utf8(_("Loading... %d%") % 0)), false, true)
1692     mainview_hbox.pack_start($mainview = MainView.new, true, true)
1693     main_vbox.pack_start(mainview_hbox, true, true)
1694     $imagesline_sw = Gtk::ScrolledWindow.new(nil, nil)
1695     $imagesline_sw.set_policy(Gtk::POLICY_ALWAYS, Gtk::POLICY_NEVER)
1696     $imagesline_sw.add_with_viewport($imagesline = Gtk::HBox.new(false, 0).show)
1697     main_vbox.pack_start($imagesline_sw, false, false)
1698     main_vbox.pack_end($statusbar = Gtk::Statusbar.new, false, false)
1699
1700     $imagesline.set_size_request(-1, Gtk::Button.new.size_request[1] + Entry.thumbnails_height + Entry.thumbnails_height/4)
1701
1702     $main_window = create_window
1703     $main_window.add(main_vbox)
1704     $main_window.signal_connect('delete-event') {
1705         try_quit({ :disallow_cancel => true })
1706     }
1707
1708     #- read/save size and position of window
1709     if $config['pos-x'] && $config['pos-y']
1710         $main_window.move($config['pos-x'].to_i, $config['pos-y'].to_i)
1711     else
1712         $main_window.window_position = Gtk::Window::POS_CENTER
1713     end
1714     msg 3, "size: #{$config['width']}x#{$config['height']}"
1715     $main_window.set_default_size(($config['width'] || 700).to_i, ($config['height'] || 600).to_i)
1716     $main_window.signal_connect('configure-event') {
1717         msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
1718         x, y = $main_window.window.root_origin
1719         width, height = $main_window.window.size
1720         $config['pos-x'] = x
1721         $config['pos-y'] = y
1722         $config['width'] = width
1723         $config['height'] = height
1724         false
1725     }
1726
1727     $main_window.show_all
1728     $loading_progressbar.hide
1729 end
1730
1731
1732 handle_options
1733 read_config
1734 Gtk.init
1735
1736
1737 create_main_window
1738 check_config
1739
1740 if ARGV[0]
1741     if msg = open_dir(*ARGV)
1742         puts msg
1743     else
1744         Gtk.idle_add {
1745             show_entries($allentries)
1746             false
1747         }
1748     end
1749 end
1750 Gtk.main
1751
1752 write_config