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Comparing CV/bin/cv (file contents):
Revision 1.1 by root, Sun Nov 2 12:55:41 2003 UTC vs.
Revision 1.54 by root, Fri Aug 19 00:19:52 2005 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2 2
3use Cwd ();
4use Encode ();
5
3use Gtk2; 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;
12use Gtk2::CV::Schnauzer;
7 13
8$VERSION = 0.1; 14BEGIN {
15 require Gtk2::CV::Plugin;
16 require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
17}
9 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;
10my $viewer; 27my $viewer;
28my $schnauzer;
29my $info;
30my $help;
11 31
12package schnauzer; 32my $schnauzer_idx = 0;
13 33
14use Glib::Object::Subclass Gtk2::Frame; 34sub new_schnauzer {
35 my $s = new Gtk2::CV::Schnauzer;
15 36
16sub INIT_INSTANCE { 37 $s->signal_connect_after (key_press_event => \&std_keys);
17 my ($self) = @_; 38 $s->signal_connect (activate => sub {
18 39 my $label = sprintf "%s (%d)",
19 $self->add ( 40 (File::Spec->splitpath ($_[1]))[2],
20 $self->{list} = new Gtk2::SimpleList "Name" => "text" 41 -s $_[1];
21 ); 42 $info->set_label ($label);
22
23 $self->{list}->signal_connect (cursor_changed => sub {
24 my $row = scalar +($_[0]->get_selection->get_selected_rows)[0]->get_indices;
25 $viewer->load_image ($self->{files}[$row]); 43 $viewer->load_image ($_[1]);
26 }); 44 });
27}
28 45
29sub set_files { 46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
30 my ($self, $files) = @_;
31 47
32 $self->{files} = $files; 48 $s
49}
33 50
34 @{$self->{list}{data}} = (); 51sub std_keys {
52 my $key = $_[1]->keyval;
53 my $state = $_[1]->state;
35 54
36 my ($dir, $file); 55 my $ctrl = $state * "control-mask";
37 56
38 for (@$files) { 57 if ($key == $Gtk2::Gdk::Keysyms{q}) {
39 if (/^(.*)\/([^\/]*)$/s) { 58 main_quit Gtk2;
40 ($dir, $file) = ($1, $2); 59 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
41 } else { 60 my $w = new Gtk2::Window;
42 ($dir, $file) = (".", $_); 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> });
43 } 82 }
44 83
45 if (0) { 84 $help->show_all;
46 if ($file eq "." or $file eq "..") {
47 } elsif (-f "$dir/.xvpics/$file") {
48 print new_from_file Gtk2::Gdk::Pixbuf "$dir/.xvpics/$file";
49 } else { 85 } else {
50 } 86 return 0;
51 }
52
53 push @{$self->{list}{data}}, [$file];
54 } 87 }
55}
56 88
57sub set_dir {
58 my ($self, $dir) = @_;
59
60 my @files;
61
62 opendir my $fh, $dir
63 or die "$dir: $!";
64
65 $self->set_files ([map "$dir/$_", readdir $fh]);
66}
67
68package cluster;
69
70use Glib::Object::Subclass Gtk2::Window;
71
72use Gtk2::SimpleList;
73
74sub INIT_INSTANCE {
75 my ($self) = @_;
76 89 1
77 $self->set_default_size (600, 400); 90}
78 91
79 my $vbox = new Gtk2::VBox; 92{
80 $self->add ($vbox); 93 $viewer = new Gtk2::CV::ImageWindow;
81 94
82 my $box = new Gtk2::HBox; 95 $viewer->set_title ("CV: Image");
83 $vbox->add ($box);
84 $box->add (my $sw = new Gtk2::ScrolledWindow);
85 $sw->add (
86 $self->{list} = new Gtk2::SimpleList
87 "#" => "int",
88 "Name" => "text",
89 );
90 96
91 $self->{schnauzer} = new schnauzer; 97 $viewer->signal_connect (key_press_event => sub {
92 $box->add (my $sw = new Gtk2::ScrolledWindow); 98 &std_keys
93 $sw->add_with_viewport ($self->{schnauzer} = new schnauzer); 99 or $schnauzer->signal_emit (key_press_event => $_[1])
94
95 $self->{list}->get_column(0)->set_sort_column_id(0);
96 $self->{list}->get_column(1)->set_sort_column_id(1);
97
98 $self->{list}->signal_connect (cursor_changed => sub {
99 my $row = scalar +($_[0]->get_selection->get_selected_rows)[0]->get_indices;
100
101 my $k = $_[0]{data}[$row][1];
102 $k = $self->{cluster}{$k};
103
104 $self->{schnauzer}->set_files (
105 [sort map "$self->{path}/$_", @{$k->[1]}],
106 );
107
108 1;
109
110 }); 100 });
111} 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
112 102
113sub analyse { 103 $viewer->signal_connect (button3_press_event => sub {
114 my ($self, $path) = @_; 104 $mainwin->visible
115 105 ? $mainwin->hide
116 opendir my $dir, $path 106 : $mainwin->show_all;
117 or die "$path: $!"; 107 1
118
119 $self->{path} = $path;
120
121 my @files = map {
122 my $str = $_;
123 $str =~ s/[\-_ ]+/ /g;
124 $str =~ s/\.[^\.]+//g;
125 [$str, $_]
126 }
127 grep !/\.(sfv|crc|par|par2)$/, readdir $dir;
128
129 my %cluster;
130
131 my @regexps = (
132 [qr<\d+$>, qr<^(.+?)\ *(\d+)$>],
133 [qr<\ \d+$>, qr<^(.+?)(\d+)\ +(\d+)$>],
134 ); 108 });
135 109
136 for my $info (@regexps) { 110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
137 my $re = $info->[0];
138 for (@files) {
139 if ($_->[0] =~ $re && $_->[0] =~ $info->[1]) {
140 push @{ ($cluster{$1} ||= [ $info, []])->[1] }, $_->[1];
141 }
142 }
143 }
144 111
145 $self->{cluster} = \%cluster; 112 $schnauzer = new_schnauzer;
146 113
147 while (my ($k, $v) = each %cluster) { 114 $mainwin = new Gtk2::Window;
148 my $n = scalar @{$v->[1]}; 115 $mainwin->set_title ("CV");
149 push @{$self->{list}{data}}, [$n, $k] if $n > 2; 116 $mainwin->add (my $vbox = new Gtk2::VBox);
150 } 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
151}
152 118
153package main; 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");
154 127
155init Gtk2; 128 $schnauzer->set_geometry_hints;
129}
156 130
157$viewer = new Gtk2::CV::ImageWindow; 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 $mainwin->show_all;
140}
158 141
159$viewer->show_all; 142$viewer->show_all;
160 143
161my $cluster = new cluster;
162
1630 and do {
164 my $w = new Gtk2::Window;
165 $w->add (my $s = new schnauzer);
166 $s->set_dir ("/root/pix");
167 $w->show_all;
168};
169
170$cluster->analyse ("/fs/samsung/store-anime-done");
171$cluster->show_all;
172
173#$viewer->set (path => "/fs/samsung/store-anime-done/yuumi_kazuaki_-_love_to_hajieki_to_sayonara_to_-_150.jpg");
174#$viewer->set (path => "/root/pix/kvvz.jpg");
175
176main Gtk2; 144main Gtk2;
177 145
146__DATA__
178 147
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 * queuing for all time-consuming background tasks
175
176All tasks, such as unlinking files or generating thumbnails, that can be
177done in the background will be done so - no waiting required, even when
178changing directories.
179
180=item * use of asynchronous I/O
181
182CV tries to use asynchronous I/O whereever it makes sense, for example
183while scanning directories, waiting for stat data, unlinking files or
184generating thumbnails. This usually decreases scanning times for large
185directories a bit (especially on RAID devices and over NFS) and makes CV
186much more interactive.
187
188=item * fast image loading
189
190The time span between the user issuing a command and displaying the new
191image should be as small as possible. CV uses optimized (especially
192for JPEG) loading functions and sacrifices some quality (e.g no gamma
193correction) to achieve this speed.
194
195=item * fast thumbnail creation
196
197Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
198creation for JPEGs has been specially optimized.
199
200=item * minimum optical clutter
201
202CV has no menus or other user interface elements that take up a lot of
203screen space. The schnauzer windows can also be somewhat crowded.
204
205The point of an image viewer is viewing images, not a nice GUI. This is
206similar to XV's behaviour.
207
208=item * efficient (and hard to learn) user interface
209
210CV uses key combinations. A lot. If you are an experienced XV user, you
211will find most of these keys familiar. If not, CV might be hard to use at
212first, but will be an efficient tool later.
213
214=item * i18n'ed filename handling throughout
215
216As long as glib can recognize your filename encoding (either UTF-8 or
217locale-specific, depending on your settings) and you have the relevant
218fonts, CV will display your filenames correctly.
219
220=item * extensible through plug-ins
221
222I have weird plug-ins that access remote databases to find a
223directory. This is not likely to be of any use to other people. Likewise,
224others might have weird requirements I cannot dream of.
225
226=item * filename clustering
227
228Among the standard plug-ins is a filename clustering plug-in, that (in
229case of tens of thousands images in one directory) might be able to
230cluster similar names together.
231
232=back
233
234=head1 DESCRIPTION
235
236=head2 THE IMAGE WINDOW
237
238You can use the following keys in the image window:
239
240 q quit the program
241 < half the image size
242 > double the image size
243 , shrink the image by 10%
244 . enlarge the image by 10%
245 n reset to normal size
246 m maximize to screensize
247 M maximize to screensize, respecting image aspect
248 ctrl-m toggle maxpect-always mode
249 u uncrop
250 r set scaling mode to 'nearest' (fastest)
251 s set scaling mode to 'bilinear' (default)
252 shift-s set scaling mode to 'hyper' (slowest)
253 t rotate clockwise 90°
254 T rotate counterclockwise°
255 ctrl-v open a new visual schnauzer window for the current dir
256 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
257 ctrl-p fire up the print fialog
258 escape cancel a crop action
259
260And when playing movies, these additional keys are active:
261
262 left rewind by 10 seconds
263 right forward by 10 seconds
264 down rewind by 60 seconds
265 up forward by 60 seconds
266 pg_up rewind by 600 seconds
267 pg_down forward by 600 seconds
268 o toggle on-screen display
269 p pause/unpause
270 escape stop playing
271 9 turn volume down
272 0 turn volume up
273
274Any other keys will be sent to the default schnauzer window, which can be
275toggled on and off by right-clicking into the image window.
276
277Left-clicking into the image window will let you crop the image (usually
278to zoom into large images that CV scales down).
279
280=head2 THE VISUAL SCHNAUZER
281
282You can use the following keys in the schnauzer window:
283
284 ctrl-space,
285 space move to and display next image
286 ctrl-backspace,
287 backspace move to and display previous image
288 ctrl-return,
289 return display selected picture, or enter directory
290
291 cursor keys move selection
292 page-up move one page up
293 page-down move one page down
294 home move to first file
295 end move to last file
296
297 ctrl-a select all files
298 ctrl-shift-a select all files currently displayed in the schnauzer window
299 ctrl-d delete selected files WITHOUT ASKING AGAIN
300 ctrl-g force generation of thumbnais for the selected files
301 ctrl-s rescan current direcory or files updates/deletes etc.
302 ctrl-u update selected (or all) icons if neccessary
303 ctrl-l don't use, will become a plug-in eventually
304
305 0-9,
306 a-z find the first filename beginning with this letter
307
308Right-clicking into the schnauzer window displays a pop-up menu with
309additional actions.
310
311=head1 FILES
312
313When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
314it were a perl script. in that, you will mostly load plug-ins.
315
316Example:
317
318 system "fping -q -t 10 ether"
319 or require "/fs/cv/cvplugin.pl";
320
321This will load a plug-in, but only if the machine I<ether> is reachable
322(supposedly the plug-in is networked in some way :).
323
324=head1 ENVIRONMENT
325
326=over 4
327
328=item CV_EDITOR
329
330The program that gets executed when the user presses C<CTRL-e> in the
331Schnauzer or image window. The default is C<gimp>.
332
333=item CV_PRINT_DESTINATION
334
335The default (perl-style) destination to use in the print dialog.
336
337=item CV_TRASHCAN
338
339When set, must point to a directory where all files that are deleted are
340moved to. If unset, files that are deleted are really being deleted.
341
342=back
343
344=head1 SECURITY CONSIDERATIONS
345
346CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
347this purpose, though (from the gtk-2.2 release notes):
348
349"While efforts have been made to make gdk-pixbuf robust against invalid
350images, using gdk-pixbuf to load untrusted data is not recommended, due to
351the likelyhood that there are additional problems where an invalid image
352could cause gdk-pixbuf to crash or worse."
353
354=head1 BUGS/TODO
355
356 Lots of functionality is missing.
357
358 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
359 names incompatible with utf-8 might fail.
360
361 rotate on disk
362 lots of ui issues
363 save(?)
364 preferences
365
366=head1 AUTHOR
367
368Marc Lehmann <cv@plan9.de>.
369
370=cut
371

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