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Comparing CV/bin/cv (file contents):
Revision 1.7 by root, Mon Nov 3 16:28:38 2003 UTC vs.
Revision 1.52 by root, Sun Aug 14 19:07:15 2005 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2
3use Cwd ();
4use Encode ();
2 5
3use Gtk2 -init; 6use Gtk2 -init;
4use Gtk2::Gdk::Keysyms; 7use Gtk2::Gdk::Keysyms;
5 8
9use Gtk2::CV;
10
6use Gtk2::CV::ImageWindow; 11use Gtk2::CV::ImageWindow;
7use Gtk2::CV::Schnauzer; 12use Gtk2::CV::Schnauzer;
8 13
9$VERSION = 0.1; 14BEGIN {
15 require Gtk2::CV::Plugin;
16 require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
17}
10 18
19use Gtk2::CV::Plugin::NameCluster;
20use Gtk2::CV::Plugin::RCluster;
21
22Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
23
24use File::Spec;
25
26my $mainwin;
11my $viewer; 27my $viewer;
28my $schnauzer;
29my $info;
30my $help;
12 31
13package cluster; 32my $schnauzer_idx = 0;
14 33
15use Glib::Object::Subclass Gtk2::Window; 34sub new_schnauzer {
35 my $s = new Gtk2::CV::Schnauzer;
16 36
17use Gtk2::SimpleList; 37 $s->signal_connect_after (key_press_event => \&std_keys);
18 38 $s->signal_connect (activate => sub {
19sub INIT_INSTANCE { 39 my $label = sprintf "%s (%d)",
20 my ($self) = @_; 40 (File::Spec->splitpath ($_[1]))[2],
21 41 -s $_[1];
22 $self->set_default_size (600, 400); 42 $info->set_label ($label);
23 43 $viewer->load_image ($_[1]);
24 my $vbox = new Gtk2::VBox;
25 $self->add ($vbox);
26
27 my $box = new Gtk2::HBox;
28 $vbox->add ($box);
29 $box->add (my $sw = new Gtk2::ScrolledWindow);
30 $sw->add (
31 $self->{list} = new Gtk2::SimpleList
32 "#" => "int",
33 "Name" => "text",
34 );
35
36 $box->add ($self->{schnauzer} = new Gtk2::CV::Schnauzer);
37
38 $self->{schnauzer}->signal_connect (activate => sub { $viewer->load_image ($_[1]) });
39
40 $self->{list}->get_column(0)->set_sort_column_id(0);
41 $self->{list}->get_column(1)->set_sort_column_id(1);
42
43 $self->{list}->signal_connect (cursor_changed => sub {
44 my $row = scalar +($_[0]->get_selection->get_selected_rows)[0]->get_indices;
45
46 my $k = $_[0]{data}[$row][1];
47 $k = $self->{cluster}{$k};
48
49 $self->{schnauzer}->set_files (
50 [sort map "$self->{path}/$_", @{$k->[1]}],
51 );
52
53 1;
54
55 }); 44 });
56}
57 45
58sub analyse { 46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
59 my ($self, $path) = @_;
60 47
61 opendir my $dir, $path
62 or die "$path: $!";
63
64 $self->{path} = $path;
65
66 my @files = map {
67 my $str = $_;
68 $str =~ s/[\-_ ]+/ /g;
69 $str =~ s/\.[^\.]+//g;
70 [$str, $_]
71 }
72 grep !/\.(sfv|crc|par|par2)$/, readdir $dir;
73
74 my %cluster;
75
76 my @regexps = (
77 [qr<\d+$>, qr<^(.+?)\ *(\d+)$>],
78 [qr<\ \d+$>, qr<^(.+?)(\d+)\ +(\d+)$>],
79 );
80
81 for my $info (@regexps) {
82 my $re = $info->[0];
83 for (@files) {
84 if ($_->[0] =~ $re && $_->[0] =~ $info->[1]) {
85 push @{ ($cluster{$1} ||= [ $info, []])->[1] }, $_->[1];
86 }
87 }
88 }
89
90 $self->{cluster} = \%cluster;
91
92 while (my ($k, $v) = each %cluster) {
93 my $n = scalar @{$v->[1]};
94 push @{$self->{list}{data}}, [$n, $k] if $n > 2;
95 }
96}
97
98package main;
99
100sub new_schnauzer {
101 my $w = new Gtk2::Window;
102 $w->add (my $s = new Gtk2::CV::Schnauzer);
103
104 $s->signal_connect (activate => sub { $viewer->load_image ($_[1]) });
105 $s->signal_connect (key_press_event => \&std_keys);
106
107 $s->set_dir (".");
108 $w->show_all;
109
110 $w; 48 $s;
111} 49}
112 50
113sub std_keys { 51sub std_keys {
114 my $key = $_[1]->keyval; 52 my $key = $_[1]->keyval;
53 my $state = $_[1]->state;
115 54
116 my $ctrl = grep $_ eq "control-mask", @{$_[1]->state}; 55 my $ctrl = $state * "control-mask";
117 56
118 if ($key == $Gtk2::Gdk::Keysyms{q}) { 57 if ($key == $Gtk2::Gdk::Keysyms{q}) {
119 main_quit Gtk2; 58 main_quit Gtk2;
120 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { 59 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
121 new_schnauzer; 60 my $w = new Gtk2::Window;
61
62 $w->set_title ("CV: Schnauzer");
63 $w->add (my $s = new_schnauzer);
64 $s->set_dir (File::Spec->curdir);
65 $s->set_geometry_hints;
66 $w->show_all;
67
68 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
69 unless ($help) {
70 require Gtk2::PodViewer;
71
72 $help = new Gtk2::Window;
73 $help->set_title ("CV: Help");
74 $help->set_default_size (500, 300);
75 $help->signal_connect (delete_event => sub { $help->hide; 1 });
76
77 $help->add (my $sw = new Gtk2::ScrolledWindow);
78 $sw->add (my $h = new Gtk2::PodViewer);
79
80 #binmode DATA, ":utf8";
81 $h->load_string (do { local $/; <DATA> });
82 }
83
84 $help->show_all;
122 } else { 85 } else {
123 return 0; 86 return 0;
124 } 87 }
125 88
126 1; 89 1
127} 90}
128 91
92{
129$viewer = new Gtk2::CV::ImageWindow; 93 $viewer = new Gtk2::CV::ImageWindow;
94
95 $viewer->set_title ("CV: Image");
96
130$viewer->signal_connect (key_press_event => \&std_keys); 97 $viewer->signal_connect (key_press_event => sub {
98 &std_keys
99 or $schnauzer->signal_emit (key_press_event => $_[1])
100 });
131$viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
102
103 $viewer->signal_connect (button3_press_event => sub {
104 $mainwin->visible
105 ? $mainwin->hide
106 : $mainwin->show_all;
107 1;
108 });
109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
111
112 $schnauzer = new_schnauzer;
113
114 $mainwin = new Gtk2::Window;
115 $mainwin->set_title ("CV");
116 $mainwin->add (my $vbox = new Gtk2::VBox);
117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });
118
119 $vbox->add ($schnauzer);
120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
123 $hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
124 $labelwindow->add ($info = new Gtk2::Label);
125 $labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
126 $info->set (selectable => 1, xalign => 0, justify => "left");
127
128 $schnauzer->set_geometry_hints;
129}
130
131if (@ARGV) {
132 @ARGV == 1 && -d $ARGV[0]
133 ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
134 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
135 $schnauzer->show_all;
136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
137} else {
138 $schnauzer->set_dir (File::Spec->curdir);
139 $mainwin->show_all;
140}
141
132$viewer->show_all; 142$viewer->show_all;
133 143
134my $cluster = new cluster;
135
136#$cluster->analyse ("/fs/samsung/store-anime-done");
137#$cluster->show_all;
138
139#$viewer->set (path => "/fs/samsung/store-anime-done/yuumi_kazuaki_-_love_to_hajieki_to_sayonara_to_-_150.jpg");
140#$viewer->set (path => "/root/pix/kvvz.jpg");
141
142main Gtk2; 144main Gtk2;
143 145
146__DATA__
144 147
148=head1 NAME
149
150cv - a fast gtk+ image viewer loosely modeled after XV
151
152=head1 SYNOPSIS
153
154 cv [file...]
155
156=head1 FEATURES
157
158CV is supposed to work similar to the venerable XV image viewer, just
159faster. Why faster?
160
161=over 4
162
163=item * optimized directory scanning algorithm
164
165The directory scanning in CV plays some tricks that - on most modern
166filesystems - makes it possible to detect filetypes faster than stat()'ing
167every file. This makes CV suitable for directories with lots of files
168(10000+).
169
170This algorithm is quite unprecise - it doesn't make a difference between
171files, device nodes, symlinks and the like, and filetype detection is done
172using the file extension only.
173
174=item * use of asynchronous I/O
175
176CV tries to use asynchronous I/O whereever it makes sense, for example
177while scanning directories, waiting for stat data or unlinking files. This
178usually decreases scanning times for large directories a bit (especially
179on RAID devices and over NFS).
180
181=item * fast image loading
182
183The time span between the user issuing a command and displaying the new
184image should be as small as possible. CV uses optimized (especially
185for JPEG) loading functions and sacrifices some quality (e.g no gamma
186correction) to achieve this speed.
187
188=item * fast thumbnail creation
189
190Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
191creation for JPEGs has been specially optimized.
192
193=item * minimum optical clutter
194
195CV has no menus or other user interface elements that take up a lot of
196screen space. The schnauzer windows can also be somewhat crowded.
197
198The point of an image viewer is viewing images, not a nice GUI. This is
199similar to XV's behaviour.
200
201=item * efficient (and hard to learn) user interface
202
203CV uses key combinations. A lot. If you are an experienced XV user, you
204will find most of these keys familiar. If not, CV might be hard to use at
205first, but will be an efficient tool later.
206
207=item * i18n'ed filename handling throughout
208
209As long as glib can recognize your filename encoding (either UTF-8 or
210locale-specific, depending on your settings) and you have the relevant
211fonts, CV will display your filenames correctly.
212
213=item * extensible through plug-ins
214
215I have weird plug-ins that access remote databases to find a
216directory. This is not likely to be of any use to other people. Likewise,
217others might have weird requirements I cannot dream of.
218
219=item * filename clustering
220
221Among the standard plug-ins is a filename clustering plug-in, that (in
222case of tens of thousands images in one directory) might be able to
223cluster similar names together.
224
225=back
226
227=head1 DESCRIPTION
228
229=head2 THE IMAGE WINDOW
230
231You can use the following keys in the image window:
232
233 q quit the program
234 < half the image size
235 > double the image size
236 , shrink the image by 10%
237 . enlarge the image by 10%
238 n reset to normal size
239 m maximize to screensize
240 M maximize to screensize, respecting image aspect
241 ctrl-m toggle maxpect-always mode
242 u uncrop
243 r set scaling mode to 'nearest' (fastest)
244 s set scaling mode to 'bilinear' (default)
245 shift-s set scaling mode to 'hyper' (slowest)
246 t rotate clockwise 90°
247 T rotate counterclockwise°
248 ctrl-v open a new visual schnauzer window for the current dir
249 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
250 ctrl-p fire up the print fialog
251 escape cancel a crop action
252
253And when playing movies, these additional keys are active:
254
255 left rewind by 10 seconds
256 right forward by 10 seconds
257 down rewind by 60 seconds
258 up forward by 60 seconds
259 pg_up rewind by 600 seconds
260 pg_down forward by 600 seconds
261 o toggle on-screen display
262 p pause/unpause
263 escape stop playing
264 9 turn volume down
265 0 turn volume up
266
267Any other keys will be sent to the default schnauzer window, which can be
268toggled on and off by right-clicking into the image window.
269
270Left-clicking into the image window will let you crop the image (usually
271to zoom into large images that CV scales down).
272
273=head2 THE VISUAL SCHNAUZER
274
275You can use the following keys in the schnauzer window:
276
277 ctrl-space,
278 space move to and display next image
279 ctrl-backspace,
280 backspace move to and display previous image
281 ctrl-return,
282 return display selected picture, or enter directory
283
284 cursor keys move selection
285 page-up move one page up
286 page-down move one page down
287 home move to first file
288 end move to last file
289
290 ctrl-a select all files
291 ctrl-shift-a select all files currently displayed in the schnauzer window
292 ctrl-d delete selected files WITHOUT ASKING AGAIN
293 ctrl-g force generation of thumbnais for the selected files
294 ctrl-s rescan current direcory or files updates/deletes etc.
295 ctrl-u update selected (or all) icons if neccessary
296 ctrl-l don't use, will become a plug-in eventually
297
298 0-9,
299 a-z find the first filename beginning with this letter
300
301Right-clicking into the schnauzer window displays a pop-up menu with
302additional actions.
303
304=head1 FILES
305
306When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
307it were a perl script. in that, you will mostly load plug-ins.
308
309Example:
310
311 system "fping -q -t 10 ether"
312 or require "/fs/cv/cvplugin.pl";
313
314This will load a plug-in, but only if the machine I<ether> is reachable
315(supposedly the plug-in is networked in some way :).
316
317=head1 ENVIRONMENT
318
319=over 4
320
321=item CV_EDITOR
322
323The program that gets executed when the user presses C<CTRL-e> in the
324Schnauzer or image window. The default is C<gimp>.
325
326=item CV_PRINT_DESTINATION
327
328The default (perl-style) destination to use in the print dialog.
329
330=item CV_TRASHCAN
331
332When set, must point to a directory where all files that are deleted are
333moved to. If unset, files that are deleted are really being deleted.
334
335=back
336
337=head1 SECURITY CONSIDERATIONS
338
339CV uses Pixbuf to load images. Pixbuf is not considered safe for this
340purpose, though (from the gtk-2.2 release notes):
341
342"While efforts have been made to make gdk-pixbuf robust against invalid
343images, using gdk-pixbuf to load untrusted data is not recommended, due to
344the likelyhood that there are additional problems where an invalid image
345could cause gdk-pixbuf to crash or worse."
346
347=head1 BUGS/TODO
348
349 Lots of functionality is missing.
350
351 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
352 names incompatible might utf-8 fail.
353
354 rotate on disk
355 lots of ui issues
356 save(?)
357 preferences
358 shift-cursor in schnauzer
359
360=head1 AUTHOR
361
362Marc Lehmann <cv@plan9.de>.
363
364=cut
365

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