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

Comparing CV/bin/cv (file contents):
Revision 1.24 by root, Wed Nov 12 18:10:47 2003 UTC vs.
Revision 1.58 by root, Wed Sep 7 20:17:25 2005 UTC

…		…
1	#!/opt/bin/perl	1	#!/opt/bin/perl
		2
		3	use Cwd ();
		4	use Encode ();
2		5
3	use Gtk2 -init;	6	use Gtk2 -init;
4	use Gtk2::Gdk::Keysyms;	7	use Gtk2::Gdk::Keysyms;
5		8
		9	use Gtk2::CV;
		10
6	use Gtk2::CV::ImageWindow;	11	use Gtk2::CV::ImageWindow;
7	use Gtk2::CV::Schnauzer;	12	use Gtk2::CV::Schnauzer;
8		13
9	use Gtk2::CV;	14	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;
10		21
11	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");	22	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
12		23
13	use File::Spec;	24	use File::Spec;
14		25
15	my $mainwin;	26	my $mainwin;
16	my $viewer;	27	my $viewer;
17	my $schnauzer;	28	my $schnauzer;
18	my $info;	29	my $info;
19	my $help;	30	my $help;
		31
		32	my $schnauzer_idx = 0;
20		33
21	sub new_schnauzer {	34	sub new_schnauzer {
22	my $s = new Gtk2::CV::Schnauzer;	35	my $s = new Gtk2::CV::Schnauzer;
23		36
24	$s->signal_connect_after (key_press_event => \&std_keys);	37	$s->signal_connect_after (key_press_event => \&std_keys);
28	-s $_[1];	41	-s $_[1];
29	$info->set_label ($label);	42	$info->set_label ($label);
30	$viewer->load_image ($_[1]);	43	$viewer->load_image ($_[1]);
31	});	44	});
32		45
		46	Gtk2::CV::Plugin->call (new_schnauzer => $s);
		47
33	$s;	48	$s
34	}	49	}
35		50
36	sub std_keys {	51	sub std_keys {
37	my $key = $_[1]->keyval;	52	my $key = $_[1]->keyval;
38	my $state = $_[1]->state;	53	my $state = $_[1]->state;
…		…
41		56
42	if ($key == $Gtk2::Gdk::Keysyms{q}) {	57	if ($key == $Gtk2::Gdk::Keysyms{q}) {
43	main_quit Gtk2;	58	main_quit Gtk2;
44	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {	59	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
45	my $w = new Gtk2::Window;	60	my $w = new Gtk2::Window;
		61
		62	$w->set_title ("CV: Schnauzer");
46	$w->add (my $s = new_schnauzer);	63	$w->add (my $s = new_schnauzer);
47	$s->set_dir (File::Spec->curdir);	64	$s->set_dir (File::Spec->curdir);
		65	$s->set_geometry_hints;
48	$w->show_all;	66	$w->show_all;
		67
49	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {	68	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
50	unless ($help) {	69	unless ($help) {
51	require Gtk2::PodViewer;	70	require Gtk2::PodViewer;
52		71
53	$help = new Gtk2::Window;	72	$help = new Gtk2::Window;
54	$help->set_title ("CV Help");	73	$help->set_title ("CV: Help");
55	$help->set_default_size (500, 300);	74	$help->set_default_size (500, 300);
56	$help->signal_connect (delete_event => sub { $help->hide; 1 });	75	$help->signal_connect (delete_event => sub { $help->hide; 1 });
57		76
58	$help->add (my $sw = new Gtk2::ScrolledWindow);	77	$help->add (my $sw = new Gtk2::ScrolledWindow);
59	$sw->add (my $h = new Gtk2::PodViewer);	78	$sw->add (my $h = new Gtk2::PodViewer);
…		…
62	$h->load_string (do { local $/; <DATA> });	81	$h->load_string (do { local $/; <DATA> });
63	}	82	}
64		83
65	$help->show_all;	84	$help->show_all;
66	} else {	85	} else {
67	#$mainwin->show_all;	86	return 0;
68	$schnauzer->handle_key ($key, $state);
69	}	87	}
70		88
71	1;	89	1
72	}	90	}
73		91
74	{	92	{
75	$viewer = new Gtk2::CV::ImageWindow;	93	$viewer = new Gtk2::CV::ImageWindow;
76		94
77	$viewer->set_title ("CV: Image");	95	$viewer->set_title ("CV: Image");
78		96
79	$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	});
80	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });	101	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
81		102
82	$viewer->signal_connect (button3_press_event => sub {	103	$viewer->signal_connect (button3_press_event => sub {
83	$mainwin->visible	104	$mainwin->visible
84	? $mainwin->hide	105	? $mainwin->hide
85	: $mainwin->show_all;	106	: $mainwin->show_all;
86	1;	107	1
87	});	108	});
		109
		110	Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
88		111
89	$schnauzer = new_schnauzer;	112	$schnauzer = new_schnauzer;
90		113
91	$mainwin = new Gtk2::Window;	114	$mainwin = new Gtk2::Window;
92	$mainwin->set_title ("CV");	115	$mainwin->set_title ("CV");
93	$mainwin->add (my $vbox = new Gtk2::VBox);	116	$mainwin->add (my $vbox = new Gtk2::VBox);
94	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });	117	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
95		118
96	$vbox->add ($schnauzer);	119	$vbox->add ($schnauzer);
97	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);	120	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
98	$frame->add (my $hbox = new Gtk2::HBox 0, 0);	121	$frame->add (my $hbox = new Gtk2::HBox 0, 0);
99	$hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0);	122	$hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
100	$hbox->pack_start (($info = new Gtk2::Label), 1, 1, 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;
101	}	129	}
102		130
103	if (@ARGV) {	131	if (@ARGV) {
104	$schnauzer->set_paths (\@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;
105	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);	136	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
106	} else {	137	} else {
107	$schnauzer->set_dir (File::Spec->curdir);	138	$schnauzer->set_dir (File::Spec->curdir);
108	$mainwin->show_all;	139	$mainwin->show_all;
109	}	140	}
…		…
112		143
113	main Gtk2;	144	main Gtk2;
114		145
115	__DATA__	146	__DATA__
116		147
		148	=encoding utf-8
		149
117	=head1 NAME	150	=head1 NAME
118		151
119	cv - a fast gtk+ image viewer modeled after xv	152	cv - a fast gtk+ image viewer loosely modeled after XV
120		153
121	=head1 SYNOPSIS	154	=head1 SYNOPSIS
122		155
123	cv [file...]	156	cv [file...]
124		157
		158	=head1 FEATURES
		159
		160	CV is supposed to work similar to the venerable XV image viewer, just
		161	faster. Why faster?
		162
		163	=over 4
		164
		165	=item * optimized directory scanning algorithm
		166
		167	The directory scanning in CV uses some tricks that - on most modern
		168	filesystems - makes it possible to detect filetypes faster than stat()'ing
		169	every file. This makes CV suitable for directories with lots of files
		170	(10000+).
		171
		172	This algorithm is quite unprecise - it doesn't make a difference between
		173	files, device nodes, symlinks and the like, and filetype detection is done
		174	using the file extension only.
		175
		176	On the positive side, it is usually many orders of magnitude faster than
		177	traditional scanning techniques (good for directories with 10000 or
		178	100000+ files).
		179
		180	=item * queuing for all time-consuming background tasks
		181
		182	All tasks, such as unlinking files or generating thumbnails, that can be
		183	done in the background will be done so - no waiting required, even when
		184	changing directories.
		185
		186	=item * use of asynchronous I/O
		187
		188	CV tries to use asynchronous I/O whereever it makes sense, for example
		189	while scanning directories, waiting for stat data, unlinking files or
		190	generating thumbnails. This usually decreases scanning times for large
		191	directories a bit (especially on RAID devices and over NFS) and makes CV
		192	much more interactive.
		193
		194	=item * fast image loading
		195
		196	The time span between the user issuing a command and displaying the new
		197	image should be as small as possible. CV uses optimized (especially
		198	for JPEG) loading functions and sacrifices some quality (e.g no gamma
		199	correction, although this might change) to achieve this speed.
		200
		201	=item * fast thumbnail creation
		202
		203	Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
		204	on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
		205	creation for JPEGs has been specially optimized and can even take
		206	advantage of multiple CPUs.
		207
		208	=item * minimum optical clutter
		209
		210	CV has no menus or other user interface elements that take up a lot of
		211	screen space (or are useful for beginning users). The schnauzer windows
		212	can also be somewhat crowded.
		213
		214	The point of an image viewer is viewing images, not a nice GUI. This is
		215	similar to XV's behaviour.
		216
		217	=item * efficient (and hard to learn) user interface
		218
		219	CV uses key combinations. A lot. If you are an experienced XV user, you
		220	will find most of these keys familiar. If not, CV might be hard to use at
		221	first, but will be an efficient tool later.
		222
		223	=item * multi-window GUI
		224
		225	CV doesn't force you to use a specific layout, instead it relies on your
		226	window manager, thus enabling you to chose whatever layout that suits you
		227	most.
		228
		229	=item * i18n'ed filename handling throughout
		230
		231	As long as glib can recognize your filename encoding (either UTF-8 or
		232	locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
		233	have the relevant fonts, CV will display your filenames correctly.
		234
		235	=item * extensible through plug-ins
		236
		237	I have weird plug-ins that access remote databases to find a
		238	directory. This is not likely to be of any use to other people. Likewise,
		239	others might have weird requirements I cannot dream of.
		240
		241	=item * filename clustering
		242
		243	Among the standard plug-ins is a filename clustering plug-in, that (in
		244	case of tens of thousands images in one directory) might be able to
		245	cluster similar names together.
		246
		247	=back
		248
125	=head1 DESCRIPTION	249	=head1 DESCRIPTION
126		250
127	None yet.
128
129	=head2 THE IMAGE WINDOW	251	=head2 THE IMAGE WINDOW
130		252
131	You can use the following keys in the image window:	253	You can use the following keys in the image window:
132		254
133	q quit the program	255	q quit the program
134	< half the image size	256	< half the image size
135	> double the image size	257	> double the image size
136	, shrink the image by 10%	258	, shrink the image by 10%
137	. enlarge the image by 10%	259	. enlarge the image by 10%
138	n reset to normal size	260	n reset to normal size
139	m maximize to screensize	261	m maximize to screensize
140	M maxime to screensize, respecting image aspect	262	M maximize to screensize, respecting image aspect
		263	ctrl-m toggle maxpect-always mode
141	u uncrop	264	u uncrop
142	r set scaling mode to 'nearest' (fastest)	265	r set scaling mode to 'nearest' (fastest)
143	s set scaling mode to 'bilinear' (default)	266	s set scaling mode to 'bilinear' (default)
144	S set scaling mode to 'hyper' (slowest)	267	shift-s set scaling mode to 'hyper' (slowest)
145	t rotate clockwise 90°	268	t rotate clockwise 90°
146	T rotate counterclockwise°	269	T rotate counterclockwise°
147	ctrl-v open a new visual schnauzer window for the current dir	270	ctrl-v open a new visual schnauzer window for the current dir
		271	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
		272	ctrl-p fire up the print dialog
		273	escape cancel a crop action
148		274
149	The following keys are redirected to the default visual schnauzer window:	275	And when playing movies, these additional keys are active:
150		276
151	space next image	277	left rewind by 10 seconds
152	backspace last image	278	right forward by 10 seconds
		279	down rewind by 60 seconds
		280	up forward by 60 seconds
		281	pg_up rewind by 600 seconds
		282	pg_down forward by 600 seconds
		283	o toggle on-screen display
		284	p pause/unpause
		285	escape stop playing
		286	9 turn volume down
		287	0 turn volume up
		288
		289	Any other keys will be sent to the default schnauzer window, which can be
		290	toggled on and off by right-clicking into the image window.
		291
		292	Left-clicking into the image window will let you crop the image (usually
		293	to zoom into large images that CV scales down).
153		294
154	=head2 THE VISUAL SCHNAUZER	295	=head2 THE VISUAL SCHNAUZER
155		296
156	You can use the following keys in the schnauzer window:	297	You can use the following keys in the schnauzer window:
157		298
		299	ctrl-space,
158	space move to and display next image	300	space move to and display next image
		301	ctrl-backspace,
159	backspace move to and display previous image	302	backspace move to and display previous image
		303	ctrl-return,
160	return display selected picture	304	return display selected picture, or enter directory
161		305
162	cursor keys move selection	306	cursor keys move selection
163	page-up move one page up	307	page-up move one page up
164	page-down move one page down	308	page-down move one page down
165	home move to first file	309	home move to first file
166	end move to last file	310	end move to last file
167		311
		312	ctrl-a select all files
		313	ctrl-shift-a select all files currently displayed in the schnauzer window
168	ctrl-d delete selected files WITHOUT ASKING AGAIN	314	ctrl-d delete selected files WITHOUT ASKING AGAIN
169	ctrl-g generate icons for the selected files	315	ctrl-g force generation of thumbnais for the selected files
		316	ctrl-s rescan current direcory or files updates/deletes etc.
170	ctrl-u update selected (or all) icons if neccessary	317	ctrl-u update selected (or all) icons if neccessary
		318	ctrl-l don't use, will become a plug-in eventually
		319
		320	^ go to parent directory (caret).
		321
		322	0-9,
		323	a-z find the first filename beginning with this letter
		324
		325	Right-clicking into the schnauzer window displays a pop-up menu with
		326	additional actions.
		327
		328	=head1 FILES
		329
		330	When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
		331	it were a perl script. in that, you will mostly load plug-ins.
		332
		333	Example:
		334
		335	system "fping -q -t 10 ether"
		336	or require "/fs/cv/cvplugin.pl";
		337
		338	This will load a plug-in, but only if the machine I<ether> is reachable
		339	(supposedly the plug-in is networked in some way :).
		340
		341	=head1 ENVIRONMENT
		342
		343	=over 4
		344
		345	=item CV_EDITOR
		346
		347	The program that gets executed when the user presses C<CTRL-e> in the
		348	Schnauzer or image window. The default is C<gimp>.
		349
		350	=item CV_PRINT_DESTINATION
		351
		352	The default (perl-style) destination to use in the print dialog.
		353
		354	=item CV_TRASHCAN
		355
		356	When set, must point to a directory where all files that are deleted are
		357	moved to. If unset, files that are deleted are really being deleted.
		358
		359	=back
171		360
172	=head1 SECURITY CONSIDERATIONS	361	=head1 SECURITY CONSIDERATIONS
173		362
174	CV uses Pixbuf to load images. Pixbuf is not considered safe for this	363	CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
175	purpose, though (from the gtk-2.2 release notes):	364	this purpose, though (from the gtk-2.2 release notes):
176		365
177	"While efforts have been made to make gdk-pixbuf robust against invalid	366	"While efforts have been made to make gdk-pixbuf robust against invalid
178	images, using gdk-pixbuf to load untrusted data is not recommended, due to	367	images, using gdk-pixbuf to load untrusted data is not recommended, due to
179	the likelyhood that there are additional problems where an invalid image	368	the likelyhood that there are additional problems where an invalid image
180	could cause gdk-pixbuf to crash or worse."	369	could cause gdk-pixbuf to crash or worse."
181		370
182	=head1 BUGS/TODO	371	=head1 BUGS/TODO
183		372
		373	Lots of functionality is missing.
		374
184	Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names	375	Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
185	incompatible with utf-8 fails.	376	names incompatible with utf-8 might fail.
186		377
187	rotate on disk	378	rotate on disk
188	print
189	lots of ui issues	379	lots of ui issues
190	save(?)	380	save(?)
191	preferences	381	preferences
192	ctrl-u in schnauzer
193	shift-cursor in schnauzer
194		382
195	=head1 AUTHOR	383	=head1 AUTHOR
196		384
197	Marc Lehmann <cv@plan9.de>.	385	Marc Lehmann <cv@plan9.de>.
198		386

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Comparing CV/bin/cv (file contents): Revision 1.24 by root, Wed Nov 12 18:10:47 2003 UTC vs. Revision 1.58 by root, Wed Sep 7 20:17:25 2005 UTC

Diff Legend

Comparing CV/bin/cv (file contents):
Revision 1.24 by root, Wed Nov 12 18:10:47 2003 UTC vs.
Revision 1.58 by root, Wed Sep 7 20:17:25 2005 UTC