[ViewVC] Annotation of: cvs/CV/bin/cv

#!/opt/bin/perl

use Cwd ();
use Encode ();

use Gtk2 -init;
use Gtk2::Gdk::Keysyms;

use Gtk2::CV;

use Gtk2::CV::ImageWindow;
use Gtk2::CV::Schnauzer;

BEGIN {
   require Gtk2::CV::Plugin;
   require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
}

use Gtk2::CV::Plugin::NameCluster;
use Gtk2::CV::Plugin::RCluster;

Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");

use File::Spec;

my $mainwin;
my $viewer;
my $schnauzer;
my $info;
my $help;

my $schnauzer_idx = 0;

sub new_schnauzer {
   my $s = new Gtk2::CV::Schnauzer;

   $s->signal_connect_after (key_press_event => \&std_keys);
   $s->signal_connect (activate => sub {
      my $label = sprintf "%s (%d)",
                  (File::Spec->splitpath ($_[1]))[2],
                  -s $_[1];
      $info->set_label ($label);
      $viewer->load_image ($_[1]);
   });

   Gtk2::CV::Plugin->call (new_schnauzer => $s);

   $s
}

sub std_keys {
   my $key = $_[1]->keyval;
   my $state = $_[1]->state;

   my $ctrl = $state * "control-mask";

   if ($key == $Gtk2::Gdk::Keysyms{q}) {
      main_quit Gtk2;
   } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
      my $w = new Gtk2::Window;

      $w->set_title ("CV: Schnauzer");
      $w->add (my $s = new_schnauzer);
      $s->set_dir (File::Spec->curdir);
      $s->set_geometry_hints;
      $w->show_all;

   } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
      unless ($help) {
         require Gtk2::PodViewer;

         $help = new Gtk2::Window;
         $help->set_title ("CV: Help");
         $help->set_default_size (500, 300);
         $help->signal_connect (delete_event => sub { $help->hide; 1 });

         $help->add (my $sw = new Gtk2::ScrolledWindow);
         $sw->add (my $h = new Gtk2::PodViewer);

         #binmode DATA, ":utf8";
         $h->load_string (do { local $/; <DATA> });
      }

      $help->show_all;
   } else {
      return 0;
   }

   1
}

{
   $viewer = new Gtk2::CV::ImageWindow;

   $viewer->set_title ("CV: Image");

   $viewer->signal_connect (key_press_event => sub {
      &std_keys
         or $schnauzer->signal_emit (key_press_event => $_[1])
   });
   $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });

   $viewer->signal_connect (button3_press_event => sub {
      $mainwin->visible
         ? $mainwin->hide
         : $mainwin->show_all;
      1
   });

   Gtk2::CV::Plugin->call (new_imagewindow => $viewer);

   $schnauzer = new_schnauzer;

   $mainwin = new Gtk2::Window;
   $mainwin->set_title ("CV");
   $mainwin->add (my $vbox = new Gtk2::VBox);
   $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });

   $vbox->add ($schnauzer);
   $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
   $frame->add (my $hbox = new Gtk2::HBox 0, 0);
   $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
   $hbox->pack_end   (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
   $labelwindow->add ($info = new Gtk2::Label);
   $labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
   $info->set (selectable => 1, xalign => 0, justify => "left");

   $schnauzer->set_geometry_hints;
}

if (@ARGV) {
   @ARGV == 1 && -d $ARGV[0]
      ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
      : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
   $schnauzer->show_all;
   $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
} else {
   $schnauzer->set_dir (File::Spec->curdir);
   $mainwin->show_all;
}

$viewer->show_all;

main Gtk2;

__DATA__

=head1 NAME

cv - a fast gtk+ image viewer loosely modeled after XV

=head1 SYNOPSIS

   cv [file...]

=head1 FEATURES

CV is supposed to work similar to the venerable XV image viewer, just
faster. Why faster?

=over 4

=item * optimized directory scanning algorithm

The directory scanning in CV uses some tricks that - on most modern
filesystems - makes it possible to detect filetypes faster than stat()'ing
every file. This makes CV suitable for directories with lots of files
(10000+).

This algorithm is quite unprecise - it doesn't make a difference between
files, device nodes, symlinks and the like, and filetype detection is done
using the file extension only.

On the positive side, it is usually many orders of magnitude faster than
traditional scanning techniques (good for directories with 10000 or
100000+ files).

=item * queuing for all time-consuming background tasks

All tasks, such as unlinking files or generating thumbnails, that can be
done in the background will be done so - no waiting required, even when
changing directories.

=item * use of asynchronous I/O

CV tries to use asynchronous I/O whereever it makes sense, for example
while scanning directories, waiting for stat data, unlinking files or
generating thumbnails. This usually decreases scanning times for large
directories a bit (especially on RAID devices and over NFS) and makes CV
much more interactive.

=item * fast image loading

The time span between the user issuing a command and displaying the new
image should be as small as possible. CV uses optimized (especially
for JPEG) loading functions and sacrifices some quality (e.g no gamma
correction, although this might change) to achieve this speed.

=item * fast thumbnail creation

Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
creation for JPEGs has been specially optimized and can even take
advantage of multiple CPUs.

=item * minimum optical clutter

CV has no menus or other user interface elements that take up a lot of
screen space (or are useful for beginning users). The schnauzer windows
can also be somewhat crowded.

The point of an image viewer is viewing images, not a nice GUI. This is
similar to XV's behaviour.

=item * efficient (and hard to learn) user interface

CV uses key combinations. A lot. If you are an experienced XV user, you
will find most of these keys familiar. If not, CV might be hard to use at
first, but will be an efficient tool later.

=item * multi-window GUI

CV doesn't force you to use a specific layout, instead it relies on your
window manager, thus enabling you to chose whatever layout that suits you
most.

=item * i18n'ed filename handling throughout

As long as glib can recognize your filename encoding (either UTF-8 or
locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
have the relevant fonts, CV will display your filenames correctly.

=item * extensible through plug-ins

I have weird plug-ins that access remote databases to find a
directory. This is not likely to be of any use to other people. Likewise,
others might have weird requirements I cannot dream of.

=item * filename clustering

Among the standard plug-ins is a filename clustering plug-in, that (in
case of tens of thousands images in one directory) might be able to
cluster similar names together.

=back

=head1 DESCRIPTION

=head2 THE IMAGE WINDOW

You can use the following keys in the image window:

 q            quit the program
 <            half the image size
 >            double the image size
 ,            shrink the image by 10%
 .            enlarge the image by 10%
 n            reset to normal size
 m            maximize to screensize
 M            maximize to screensize, respecting image aspect
 ctrl-m       toggle maxpect-always mode
 u            uncrop
 r            set scaling mode to 'nearest' (fastest)
 s            set scaling mode to 'bilinear' (default)
 shift-s      set scaling mode to 'hyper' (slowest)
 t            rotate clockwise 90°
 T            rotate counterclockwise°
 ctrl-v       open a new visual schnauzer window for the current dir
 ctrl-e       run an editor ($CV_EDITOR or "gimp") on the current image
 ctrl-p       fire up the print fialog
 escape       cancel a crop action

And when playing movies, these additional keys are active:

 left         rewind by 10 seconds
 right        forward by 10 seconds
 down         rewind by 60 seconds
 up           forward by 60 seconds
 pg_up        rewind by 600 seconds
 pg_down      forward by 600 seconds
 o            toggle on-screen display
 p            pause/unpause
 escape       stop playing
 9            turn volume down
 0            turn volume up

Any other keys will be sent to the default schnauzer window, which can be
toggled on and off by right-clicking into the image window.

Left-clicking into the image window will let you crop the image (usually
to zoom into large images that CV scales down).

=head2 THE VISUAL SCHNAUZER

You can use the following keys in the schnauzer window:

 ctrl-space,
 space        move to and display next image
 ctrl-backspace,
 backspace    move to and display previous image
 ctrl-return,
 return       display selected picture, or enter directory

 cursor keys  move selection
 page-up      move one page up
 page-down    move one page down
 home         move to first file
 end          move to last file

 ctrl-a       select all files
 ctrl-shift-a select all files currently displayed in the schnauzer window
 ctrl-d       delete selected files WITHOUT ASKING AGAIN
 ctrl-g       force generation of thumbnais for the selected files
 ctrl-s       rescan current direcory or files updates/deletes etc.
 ctrl-u       update selected (or all) icons if neccessary
 ctrl-l       don't use, will become a plug-in eventually

 ^            go to parent directory (caret).

 0-9,
 a-z          find the first filename beginning with this letter

Right-clicking into the schnauzer window displays a pop-up menu with
additional actions.

=head1 FILES

When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
it were a perl script. in that, you will mostly load plug-ins.

Example:

   system "fping -q -t 10 ether"
     or require "/fs/cv/cvplugin.pl";

This will load a plug-in, but only if the machine I<ether> is reachable
(supposedly the plug-in is networked in some way :).

=head1 ENVIRONMENT

=over 4

=item CV_EDITOR

The program that gets executed when the user presses C<CTRL-e> in the
Schnauzer or image window. The default is C<gimp>.

=item CV_PRINT_DESTINATION

The default (perl-style) destination to use in the print dialog.

=item CV_TRASHCAN

When set, must point to a directory where all files that are deleted are
moved to. If unset, files that are deleted are really being deleted.

=back

=head1 SECURITY CONSIDERATIONS

CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
this purpose, though (from the gtk-2.2 release notes):

"While efforts have been made to make gdk-pixbuf robust against invalid
images, using gdk-pixbuf to load untrusted data is not recommended, due to
the likelyhood that there are additional problems where an invalid image
could cause gdk-pixbuf to crash or worse."

=head1 BUGS/TODO

 Lots of functionality is missing.

 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
 names incompatible with utf-8 might fail.

 rotate on disk
 lots of ui issues
 save(?)
 preferences

=head1 AUTHOR

Marc Lehmann <cv@plan9.de>.

=cut

Revision:	1.56
Committed:	Mon Aug 22 03:33:33 2005 UTC (18 years, 10 months ago) by root
Branch:	MAIN
Changes since 1.55:	+2 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#!/opt/bin/perl
2
3	root	1.37	use Cwd ();
4			use Encode ();
5
6	root	1.12	use Gtk2 -init;
7			use Gtk2::Gdk::Keysyms;
8
9	root	1.48	use Gtk2::CV;
10
11	root	1.12	use Gtk2::CV::ImageWindow;
12			use Gtk2::CV::Schnauzer;
13
14	root	1.48	BEGIN {
15			require Gtk2::CV::Plugin;
16			require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
17			}
18
19			use Gtk2::CV::Plugin::NameCluster;
20			use Gtk2::CV::Plugin::RCluster;
21	root	1.16
22			Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
23
24	root	1.20	use File::Spec;
25
26			my $mainwin;
27	root	1.12	my $viewer;
28			my $schnauzer;
29	root	1.20	my $info;
30	root	1.21	my $help;
31	root	1.12
32	root	1.25	my $schnauzer_idx = 0;
33
34	root	1.12	sub new_schnauzer {
35	root	1.20	my $s = new Gtk2::CV::Schnauzer;
36	root	1.12
37			$s->signal_connect_after (key_press_event => \&std_keys);
38	root	1.20	$s->signal_connect (activate => sub {
39			my $label = sprintf "%s (%d)",
40			(File::Spec->splitpath ($_[1]))[2],
41			-s $_[1];
42			$info->set_label ($label);
43			$viewer->load_image ($_[1]);
44			});
45	root	1.12
46	root	1.40	Gtk2::CV::Plugin->call (new_schnauzer => $s);
47
48	root	1.53	$s
49	root	1.12	}
50
51			sub std_keys {
52			my $key = $_[1]->keyval;
53			my $state = $_[1]->state;
54
55	root	1.21	my $ctrl = $state * "control-mask";
56	root	1.12
57			if ($key == $Gtk2::Gdk::Keysyms{q}) {
58			main_quit Gtk2;
59			} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
60	root	1.20	my $w = new Gtk2::Window;
61	root	1.26
62			$w->set_title ("CV: Schnauzer");
63	root	1.20	$w->add (my $s = new_schnauzer);
64			$s->set_dir (File::Spec->curdir);
65	root	1.25	$s->set_geometry_hints;
66	root	1.21	$w->show_all;
67	root	1.25
68	root	1.21	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
69			unless ($help) {
70			require Gtk2::PodViewer;
71
72			$help = new Gtk2::Window;
73	root	1.26	$help->set_title ("CV: Help");
74	root	1.21	$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;
85	root	1.12	} else {
86	root	1.43	return 0;
87	root	1.12	}
88
89	root	1.43	1
90	root	1.12	}
91
92	root	1.20	{
93			$viewer = new Gtk2::CV::ImageWindow;
94	root	1.15
95	root	1.20	$viewer->set_title ("CV: Image");
96	root	1.15
97	root	1.43	$viewer->signal_connect (key_press_event => sub {
98			&std_keys
99			or $schnauzer->signal_emit (key_press_event => $_[1])
100			});
101	root	1.20	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
102	root	1.13
103	root	1.20	$viewer->signal_connect (button3_press_event => sub {
104			$mainwin->visible
105			? $mainwin->hide
106			: $mainwin->show_all;
107	root	1.53	1
108	root	1.20	});
109
110	root	1.40	Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
111
112	root	1.20	$schnauzer = new_schnauzer;
113
114			$mainwin = new Gtk2::Window;
115			$mainwin->set_title ("CV");
116			$mainwin->add (my $vbox = new Gtk2::VBox);
117	root	1.53	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
118	root	1.20
119			$vbox->add ($schnauzer);
120	root	1.22	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
121	root	1.20	$frame->add (my $hbox = new Gtk2::HBox 0, 0);
122	root	1.45	$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	root	1.25
128			$schnauzer->set_geometry_hints;
129	root	1.20	}
130	root	1.12
131			if (@ARGV) {
132	root	1.52	@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	root	1.31	$schnauzer->show_all;
136	root	1.18	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
137	root	1.17	} else {
138	root	1.20	$schnauzer->set_dir (File::Spec->curdir);
139	root	1.19	$mainwin->show_all;
140	root	1.12	}
141
142	root	1.35	$viewer->show_all;
143
144	root	1.12	main Gtk2;
145	root	1.21
146			__DATA__
147	root	1.12
148	root	1.11	=head1 NAME
149
150	root	1.47	cv - a fast gtk+ image viewer loosely modeled after XV
151	root	1.11
152			=head1 SYNOPSIS
153
154			cv [file...]
155
156	root	1.47	=head1 FEATURES
157
158			CV is supposed to work similar to the venerable XV image viewer, just
159			faster. Why faster?
160
161			=over 4
162
163			=item * optimized directory scanning algorithm
164
165	root	1.55	The directory scanning in CV uses some tricks that - on most modern
166	root	1.47	filesystems - makes it possible to detect filetypes faster than stat()'ing
167			every file. This makes CV suitable for directories with lots of files
168			(10000+).
169
170			This algorithm is quite unprecise - it doesn't make a difference between
171			files, device nodes, symlinks and the like, and filetype detection is done
172			using the file extension only.
173
174	root	1.55	On the positive side, it is usually many orders of magnitude faster than
175			traditional scanning techniques (good for directories with 10000 or
176			100000+ files).
177
178	root	1.53	=item * queuing for all time-consuming background tasks
179
180			All tasks, such as unlinking files or generating thumbnails, that can be
181			done in the background will be done so - no waiting required, even when
182			changing directories.
183
184	root	1.47	=item * use of asynchronous I/O
185
186			CV tries to use asynchronous I/O whereever it makes sense, for example
187	root	1.53	while scanning directories, waiting for stat data, unlinking files or
188			generating thumbnails. This usually decreases scanning times for large
189			directories a bit (especially on RAID devices and over NFS) and makes CV
190			much more interactive.
191	root	1.47
192			=item * fast image loading
193
194			The time span between the user issuing a command and displaying the new
195			image should be as small as possible. CV uses optimized (especially
196			for JPEG) loading functions and sacrifices some quality (e.g no gamma
197	root	1.55	correction, although this might change) to achieve this speed.
198	root	1.47
199			=item * fast thumbnail creation
200
201	root	1.55	Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
202			on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
203			creation for JPEGs has been specially optimized and can even take
204			advantage of multiple CPUs.
205	root	1.47
206			=item * minimum optical clutter
207
208			CV has no menus or other user interface elements that take up a lot of
209	root	1.55	screen space (or are useful for beginning users). The schnauzer windows
210			can also be somewhat crowded.
211	root	1.47
212			The point of an image viewer is viewing images, not a nice GUI. This is
213			similar to XV's behaviour.
214
215			=item * efficient (and hard to learn) user interface
216
217			CV uses key combinations. A lot. If you are an experienced XV user, you
218			will find most of these keys familiar. If not, CV might be hard to use at
219			first, but will be an efficient tool later.
220
221	root	1.55	=item * multi-window GUI
222
223			CV doesn't force you to use a specific layout, instead it relies on your
224			window manager, thus enabling you to chose whatever layout that suits you
225			most.
226
227	root	1.47	=item * i18n'ed filename handling throughout
228
229			As long as glib can recognize your filename encoding (either UTF-8 or
230	root	1.55	locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
231			have the relevant fonts, CV will display your filenames correctly.
232	root	1.47
233			=item * extensible through plug-ins
234
235			I have weird plug-ins that access remote databases to find a
236			directory. This is not likely to be of any use to other people. Likewise,
237			others might have weird requirements I cannot dream of.
238
239			=item * filename clustering
240
241			Among the standard plug-ins is a filename clustering plug-in, that (in
242			case of tens of thousands images in one directory) might be able to
243			cluster similar names together.
244
245			=back
246
247	root	1.11	=head1 DESCRIPTION
248
249			=head2 THE IMAGE WINDOW
250
251			You can use the following keys in the image window:
252
253	root	1.50	q quit the program
254			< half the image size
255			> double the image size
256			, shrink the image by 10%
257			. enlarge the image by 10%
258			n reset to normal size
259			m maximize to screensize
260			M maximize to screensize, respecting image aspect
261			ctrl-m toggle maxpect-always mode
262			u uncrop
263			r set scaling mode to 'nearest' (fastest)
264			s set scaling mode to 'bilinear' (default)
265			shift-s set scaling mode to 'hyper' (slowest)
266			t rotate clockwise 90°
267			T rotate counterclockwise°
268			ctrl-v open a new visual schnauzer window for the current dir
269			ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
270			ctrl-p fire up the print fialog
271			escape cancel a crop action
272	root	1.11
273	root	1.33	And when playing movies, these additional keys are active:
274
275	root	1.50	left rewind by 10 seconds
276			right forward by 10 seconds
277			down rewind by 60 seconds
278			up forward by 60 seconds
279			pg_up rewind by 600 seconds
280			pg_down forward by 600 seconds
281			o toggle on-screen display
282			p pause/unpause
283			escape stop playing
284			9 turn volume down
285			0 turn volume up
286	root	1.33
287	root	1.47	Any other keys will be sent to the default schnauzer window, which can be
288			toggled on and off by right-clicking into the image window.
289	root	1.11
290	root	1.47	Left-clicking into the image window will let you crop the image (usually
291			to zoom into large images that CV scales down).
292	root	1.11
293			=head2 THE VISUAL SCHNAUZER
294
295			You can use the following keys in the schnauzer window:
296
297	root	1.47	ctrl-space,
298	root	1.50	space move to and display next image
299	root	1.47	ctrl-backspace,
300	root	1.50	backspace move to and display previous image
301	root	1.47	ctrl-return,
302	root	1.50	return display selected picture, or enter directory
303	root	1.11
304	root	1.50	cursor keys move selection
305			page-up move one page up
306			page-down move one page down
307			home move to first file
308			end move to last file
309
310			ctrl-a select all files
311			ctrl-shift-a select all files currently displayed in the schnauzer window
312			ctrl-d delete selected files WITHOUT ASKING AGAIN
313			ctrl-g force generation of thumbnais for the selected files
314			ctrl-s rescan current direcory or files updates/deletes etc.
315			ctrl-u update selected (or all) icons if neccessary
316			ctrl-l don't use, will become a plug-in eventually
317	root	1.47
318	root	1.56	^ go to parent directory (caret).
319
320	root	1.47	0-9,
321	root	1.50	a-z find the first filename beginning with this letter
322	root	1.47
323			Right-clicking into the schnauzer window displays a pop-up menu with
324			additional actions.
325
326			=head1 FILES
327
328			When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
329			it were a perl script. in that, you will mostly load plug-ins.
330
331			Example:
332
333			system "fping -q -t 10 ether"
334			or require "/fs/cv/cvplugin.pl";
335
336			This will load a plug-in, but only if the machine I<ether> is reachable
337			(supposedly the plug-in is networked in some way :).
338	root	1.11
339	root	1.27	=head1 ENVIRONMENT
340
341			=over 4
342
343	root	1.38	=item CV_EDITOR
344
345			The program that gets executed when the user presses C<CTRL-e> in the
346			Schnauzer or image window. The default is C<gimp>.
347
348	root	1.27	=item CV_PRINT_DESTINATION
349
350			The default (perl-style) destination to use in the print dialog.
351
352	root	1.38	=item CV_TRASHCAN
353
354			When set, must point to a directory where all files that are deleted are
355			moved to. If unset, files that are deleted are really being deleted.
356
357	root	1.27	=back
358
359	root	1.23	=head1 SECURITY CONSIDERATIONS
360
361	root	1.54	CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
362			this purpose, though (from the gtk-2.2 release notes):
363	root	1.23
364			"While efforts have been made to make gdk-pixbuf robust against invalid
365			images, using gdk-pixbuf to load untrusted data is not recommended, due to
366			the likelyhood that there are additional problems where an invalid image
367			could cause gdk-pixbuf to crash or worse."
368
369	root	1.11	=head1 BUGS/TODO
370	root	1.23
371	root	1.47	Lots of functionality is missing.
372
373			Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
374	root	1.54	names incompatible with utf-8 might fail.
375	root	1.11
376			rotate on disk
377			lots of ui issues
378			save(?)
379			preferences
380
381			=head1 AUTHOR
382
383			Marc Lehmann <cv@plan9.de>.
384
385			=cut
386	root	1.1