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

Comparing CV/bin/cv (file contents):
Revision 1.37 by root, Fri Mar 18 03:45:29 2005 UTC vs.
Revision 1.62 by root, Tue Oct 4 04:55:47 2005 UTC

…		…
4	use Encode ();	4	use Encode ();
5		5
6	use Gtk2 -init;	6	use Gtk2 -init;
7	use Gtk2::Gdk::Keysyms;	7	use Gtk2::Gdk::Keysyms;
8		8
		9	use Gtk2::CV;
		10
9	use Gtk2::CV::ImageWindow;	11	use Gtk2::CV::ImageWindow;
10	use Gtk2::CV::Schnauzer;	12	use Gtk2::CV::Schnauzer;
11		13
12	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;
13		21
14	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");	22	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
15		23
16	use File::Spec;	24	use File::Spec;
17		25
18	my $mainwin;	26	my $mainwin;
19	my $viewer;	27	my $viewer;
		28	my $viewer_count;
20	my $schnauzer;	29	my $schnauzer;
21	my $info;	30	my $info;
22	my $help;	31	my $help;
23		32
24	my $schnauzer_idx = 0;	33	my $schnauzer_idx = 0;
…		…
30	$s->signal_connect (activate => sub {	39	$s->signal_connect (activate => sub {
31	my $label = sprintf "%s (%d)",	40	my $label = sprintf "%s (%d)",
32	(File::Spec->splitpath ($_[1]))[2],	41	(File::Spec->splitpath ($_[1]))[2],
33	-s $_[1];	42	-s $_[1];
34	$info->set_label ($label);	43	$info->set_label ($label);
35	$viewer->load_image ($_[1]);	44	$viewer->load_image ($_[1]) if $viewer; # TODO: error, or chose ANY viewer
36	});	45	});
		46
		47	Gtk2::CV::Plugin->call (new_schnauzer => $s);
		48
		49	$s
		50	}
		51
		52	sub new_viewer {
		53	my $self = new Gtk2::CV::ImageWindow;
		54
		55	$viewer_count++;
		56
		57	$self->set_title ("CV: Image");
		58
37	$s->signal_connect (chdir => sub {	59	$self->signal_connect (key_press_event => sub {
38	my ($self, $dir) = @_;	60	$viewer = $_[0];
39		61
40	my $path = Cwd::abs_path $dir;	62	my $key = $_[1]->keyval;
		63	my $state = $_[1]->state;
41		64
42	$self->realize;	65	if ($state * "control-mask" && $key == $Gtk2::Gdk::Keysyms{c}) {
43	$self->window->property_change (	66	my $viewer = new_viewer ();
44	Gtk2::Gdk::Atom->intern ("_X_CWD", 0),	67	$viewer->set_image ($_[0]->{image});
45	Gtk2::Gdk::Atom->intern ("UTF8_STRING", 0),	68	$viewer->show_all;
46	Gtk2::Gdk::CHARS, 'replace',	69	1
47	Encode::encode_utf8 $path,	70	} else {
		71	&std_keys
		72	or $schnauzer->signal_emit (key_press_event => $_[1])
48	);	73	}
49	});	74	});
		75	$self->signal_connect (destroy => sub {
		76	$viewer = undef if $viewer == $_[0];
50		77
51	$s;	78	main_quit Gtk2 unless --$viewer_count;
		79	});
		80
		81	$self->signal_connect (button3_press_event => sub {
		82	$mainwin->visible
		83	? $mainwin->hide
		84	: $mainwin->show_all;
		85	1
		86	});
		87
		88	Gtk2::CV::Plugin->call (new_imagewindow => $self);
		89
		90	$self
52	}	91	}
53		92
54	sub std_keys {	93	sub std_keys {
55	my $key = $_[1]->keyval;	94	my $key = $_[1]->keyval;
56	my $state = $_[1]->state;	95	my $state = $_[1]->state;
57		96
58	my $ctrl = $state * "control-mask";	97	my $ctrl = $state * "control-mask";
59		98
60	if ($key == $Gtk2::Gdk::Keysyms{q}) {	99	if ($key == $Gtk2::Gdk::Keysyms{q}) {
61	main_quit Gtk2;	100	$viewer->destroy;
62	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {	101	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
63	my $w = new Gtk2::Window;	102	my $w = new Gtk2::Window;
64		103
65	$w->set_title ("CV: Schnauzer");	104	$w->set_title ("CV: Schnauzer");
66	$w->add (my $s = new_schnauzer);	105	$w->add (my $s = new_schnauzer);
…		…
84	$h->load_string (do { local $/; <DATA> });	123	$h->load_string (do { local $/; <DATA> });
85	}	124	}
86		125
87	$help->show_all;	126	$help->show_all;
88	} else {	127	} else {
89	#$mainwin->show_all;	128	return 0;
90	$schnauzer->handle_key ($key, $state);
91	}	129	}
92		130
93	1;	131	1
94	}	132	}
95		133
96	{	134	{
97	$viewer = new Gtk2::CV::ImageWindow;	135	$viewer = new_viewer;
98		136	$::cur_viewer = $viewer;
99	$viewer->set_title ("CV: Image");
100
101	$viewer->signal_connect (key_press_event => \&std_keys);
102	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
103
104	$viewer->signal_connect (button3_press_event => sub {
105	$mainwin->visible
106	? $mainwin->hide
107	: $mainwin->show_all;
108	1;
109	});
110		137
111	$schnauzer = new_schnauzer;	138	$schnauzer = new_schnauzer;
112		139
113	$mainwin = new Gtk2::Window;	140	$mainwin = new Gtk2::Window;
114	$mainwin->set_title ("CV");	141	$mainwin->set_title ("CV");
115	$mainwin->add (my $vbox = new Gtk2::VBox);	142	$mainwin->add (my $vbox = new Gtk2::VBox);
116	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });	143	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
117		144
118	$vbox->add ($schnauzer);	145	$vbox->add ($schnauzer);
119	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);	146	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
120	$frame->add (my $hbox = new Gtk2::HBox 0, 0);	147	$frame->add (my $hbox = new Gtk2::HBox 0, 0);
121	$hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0);	148	$hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
122	$hbox->pack_start (($info = new Gtk2::Label), 1, 1, 0);	149	$hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
		150	$labelwindow->add ($info = new Gtk2::Label);
		151	$labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
		152	$info->set (selectable => 1, xalign => 0, justify => "left");
123		153
124	$schnauzer->set_geometry_hints;	154	$schnauzer->set_geometry_hints;
125	}	155	}
126		156
127	if (@ARGV) {	157	if (@ARGV) {
		158	@ARGV == 1 && -d $ARGV[0]
		159	? $schnauzer->set_dir (Glib::filename_to_unicode shift)
128	$schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);	160	: $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
129	$schnauzer->show_all;	161	$schnauzer->show_all;
130	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);	162	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
131	} else {	163	} else {
132	$schnauzer->set_dir (File::Spec->curdir);	164	$schnauzer->set_dir (File::Spec->curdir);
133	$mainwin->show_all;	165	$mainwin->show_all;
134	$viewer->show_all;
135	}	166	}
136		167
137	$viewer->show_all;	168	$viewer->show_all;
138		169
139	main Gtk2;	170	main Gtk2;
140		171
141	__DATA__	172	__DATA__
142		173
		174	=encoding utf-8
		175
143	=head1 NAME	176	=head1 NAME
144		177
145	cv - a fast gtk+ image viewer modeled after xv	178	cv - a fast gtk+ image viewer loosely modeled after XV
146		179
147	=head1 SYNOPSIS	180	=head1 SYNOPSIS
148		181
149	cv [file...]	182	cv [file...]
150		183
		184	=head1 FEATURES
		185
		186	CV is supposed to work similar to the venerable XV image viewer, just
		187	faster. Why faster?
		188
		189	=over 4
		190
		191	=item * optimized directory scanning algorithm
		192
		193	The directory scanning in CV uses some tricks that - on most modern
		194	filesystems - makes it possible to detect filetypes faster than stat()'ing
		195	every file. This makes CV suitable for directories with lots of files
		196	(10000+).
		197
		198	This algorithm is quite unprecise - it doesn't make a difference between
		199	files, device nodes, symlinks and the like, and filetype detection is done
		200	using the file extension only.
		201
		202	On the positive side, it is usually many orders of magnitude faster than
		203	traditional scanning techniques (good for directories with 10000 or
		204	100000+ files).
		205
		206	=item * queuing for all time-consuming background tasks
		207
		208	All tasks, such as unlinking files or generating thumbnails, that can be
		209	done in the background will be done so - no waiting required, even when
		210	changing directories.
		211
		212	=item * use of asynchronous I/O
		213
		214	CV tries to use asynchronous I/O whereever it makes sense, for example
		215	while scanning directories, waiting for stat data, unlinking files or
		216	generating thumbnails. This usually decreases scanning times for large
		217	directories a bit (especially on RAID devices and over NFS) and makes CV
		218	much more interactive.
		219
		220	=item * fast image loading
		221
		222	The time span between the user issuing a command and displaying the new
		223	image should be as small as possible. CV uses optimized (especially
		224	for JPEG) loading functions and sacrifices some quality (e.g no gamma
		225	correction, although this might change) to achieve this speed.
		226
		227	=item * fast thumbnail creation
		228
		229	Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
		230	on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
		231	creation for JPEGs has been specially optimized and can even take
		232	advantage of multiple CPUs.
		233
		234	=item * minimum optical clutter
		235
		236	CV has no menus or other user interface elements that take up a lot of
		237	screen space (or are useful for beginning users). The schnauzer windows
		238	can also be somewhat crowded.
		239
		240	The point of an image viewer is viewing images, not a nice GUI. This is
		241	similar to XV's behaviour.
		242
		243	=item * efficient (and hard to learn) user interface
		244
		245	CV uses key combinations. A lot. If you are an experienced XV user, you
		246	will find most of these keys familiar. If not, CV might be hard to use at
		247	first, but will be an efficient tool later.
		248
		249	=item * multi-window GUI
		250
		251	CV doesn't force you to use a specific layout, instead it relies on your
		252	window manager, thus enabling you to chose whatever layout that suits you
		253	most.
		254
		255	=item * i18n'ed filename handling throughout
		256
		257	As long as glib can recognize your filename encoding (either UTF-8 or
		258	locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
		259	have the relevant fonts, CV will display your filenames correctly.
		260
		261	=item * extensible through plug-ins
		262
		263	I have weird plug-ins that access remote databases to find a
		264	directory. This is not likely to be of any use to other people. Likewise,
		265	others might have weird requirements I cannot dream of.
		266
		267	=item * filename clustering
		268
		269	Among the standard plug-ins is a filename clustering plug-in, that (in
		270	case of tens of thousands images in one directory) might be able to
		271	cluster similar names together.
		272
		273	=back
		274
151	=head1 DESCRIPTION	275	=head1 DESCRIPTION
152		276
153	None yet.
154
155	=head2 THE IMAGE WINDOW	277	=head2 THE IMAGE WINDOW
156		278
157	You can use the following keys in the image window:	279	You can use the following keys in the image window:
158		280
159	q quit the program	281	q quit the program
160	< half the image size	282	< half the image size
161	> double the image size	283	> double the image size
162	, shrink the image by 10%	284	, shrink the image by 10%
163	. enlarge the image by 10%	285	. enlarge the image by 10%
164	n reset to normal size	286	n reset to normal size
165	m maximize to screensize	287	m maximize to screensize
166	M maxime to screensize, respecting image aspect	288	M maximize to screensize, respecting image aspect
167	ctrl-m toggle maxpect-always mode	289	ctrl-m toggle maxpect-always mode
		290	ctrl-sift-m toggle using current image size as max image size
168	u uncrop	291	u uncrop
169	r set scaling mode to 'nearest' (fastest)	292	r set scaling mode to 'nearest' (fastest)
170	s set scaling mode to 'bilinear' (default)	293	s set scaling mode to 'bilinear' (default)
171	S set scaling mode to 'hyper' (slowest)	294	shift-s set scaling mode to 'hyper' (slowest)
172	t rotate clockwise 90°	295	t rotate clockwise 90°
173	T rotate counterclockwise°	296	T rotate counterclockwise°
174	ctrl-v open a new visual schnauzer window for the current dir	297	ctrl-v open a new visual schnauzer window for the current dir
175	ctrl-s rescan visual schnauzer files for updates/deletes etc.
176	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image.	298	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
		299	ctrl-p fire up the print dialog
		300	escape cancel a crop action
177		301
178	And when playing movies, these additional keys are active:	302	And when playing movies, these additional keys are active:
179		303
180	left rewind by 10 seconds	304	left rewind by 10 seconds
181	right forward by 10 seconds	305	right forward by 10 seconds
182	down rewind by 60 seconds	306	down rewind by 60 seconds
183	up forward by 60 seconds	307	up forward by 60 seconds
184	pg_up rewind by 600 seconds	308	pg_up rewind by 600 seconds
185	pg_down forward by 600 seconds	309	pg_down forward by 600 seconds
186	o toggle on-screen display	310	o toggle on-screen display
187	p pause/unpause	311	p pause/unpause
188	escape stop playing	312	escape stop playing
189	9 turn volume down	313	9 turn volume down
190	0 turn volume up	314	0 turn volume up
191		315
192	The following keys are redirected to the default visual schnauzer window:	316	Any other keys will be sent to the default schnauzer window, which can be
		317	toggled on and off by right-clicking into the image window.
193		318
194	space next image	319	Left-clicking into the image window will let you crop the image (usually
195	backspace last image	320	to zoom into large images that CV scales down).
196		321
197	=head2 THE VISUAL SCHNAUZER	322	=head2 THE VISUAL SCHNAUZER
198		323
199	You can use the following keys in the schnauzer window:	324	You can use the following keys in the schnauzer window:
200		325
		326	ctrl-space,
201	space move to and display next image	327	space move to and display next image
		328	ctrl-backspace,
202	backspace move to and display previous image	329	backspace move to and display previous image
		330	ctrl-return,
203	return display selected picture	331	return display selected picture, or enter directory
204		332
205	cursor keys move selection	333	cursor keys move selection
206	page-up move one page up	334	page-up move one page up
207	page-down move one page down	335	page-down move one page down
208	home move to first file	336	home move to first file
209	end move to last file	337	end move to last file
210		338
		339	ctrl-a select all files
		340	ctrl-shift-a select all files currently displayed in the schnauzer window
211	ctrl-d delete selected files WITHOUT ASKING AGAIN	341	ctrl-d delete selected files WITHOUT ASKING AGAIN
212	ctrl-g generate icons for the selected files	342	ctrl-g force generation of thumbnais for the selected files
		343	ctrl-s rescan current direcory or files updates/deletes etc.
213	ctrl-u update selected (or all) icons if neccessary	344	ctrl-u update selected (or all) icons if neccessary
214	ctrl-a select all files	345	ctrl-l don't use, will become a plug-in eventually
		346
		347	^ go to parent directory (caret).
		348
		349	0-9,
		350	a-z find the first filename beginning with this letter
		351
		352	Right-clicking into the schnauzer window displays a pop-up menu with
		353	additional actions.
		354
		355	=head3 SELECTION
		356
		357	You can select entries in the Schnauzer in a variety of ways:
		358
		359	=over 4
		360
		361	=item Keyboard
		362
		363	Moving the cursor with the keyboard will first deselect all files and then
		364	select the file you moved to.
		365
		366	=item Clicking
		367
		368	Clicking on an entry will select the one you clicked and deselect all
		369	others.
		370
		371	=item Shift-Clicking
		372
		373	Shift-clicking will toggle the selection on the entry under the mouse.
		374
		375	=item Dragging
		376
		377	Dragging will select all entries between the one selected when pushing the
		378	button and the one selected when releasing the button. If you move above
		379	or below the schnauzer area while drag-selecting, the schnauzer will move
		380	up/down one row twice per second. In addition, horizontal mouse movement
		381	acts as a kind of invisible horizontal scrollbar.
		382
		383	=item Hint: double-click works while click-selecting
		384
		385	You can double-click any image while click-selecting to display it
		386	without stopping the selection process. This will act as if you normally
		387	double-clicked the image to display it, and will toggle the selection
		388	twice, resulting in no change.
		389
		390	=back
		391
		392	=head1 FILES
		393
		394	When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
		395	it were a perl script. in that, you will mostly load plug-ins.
		396
		397	Example:
		398
		399	system "fping -q -t 10 ether"
		400	or require "/fs/cv/cvplugin.pl";
		401
		402	This will load a plug-in, but only if the machine I<ether> is reachable
		403	(supposedly the plug-in is networked in some way :).
215		404
216	=head1 ENVIRONMENT	405	=head1 ENVIRONMENT
217		406
218	=over 4	407	=over 4
219		408
		409	=item CV_EDITOR
		410
		411	The program that gets executed when the user presses C<CTRL-e> in the
		412	Schnauzer or image window. The default is C<gimp>.
		413
220	=item CV_PRINT_DESTINATION	414	=item CV_PRINT_DESTINATION
221		415
222	The default (perl-style) destination to use in the print dialog.	416	The default (perl-style) destination to use in the print dialog.
223		417
		418	=item CV_TRASHCAN
		419
		420	When set, must point to a directory where all files that are deleted are
		421	moved to. If unset, files that are deleted are really being deleted.
		422
224	=back	423	=back
225		424
226	=head1 SECURITY CONSIDERATIONS	425	=head1 SECURITY CONSIDERATIONS
227		426
228	CV uses Pixbuf to load images. Pixbuf is not considered safe for this	427	CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
229	purpose, though (from the gtk-2.2 release notes):	428	this purpose, though (from the gtk-2.2 release notes):
230		429
231	"While efforts have been made to make gdk-pixbuf robust against invalid	430	"While efforts have been made to make gdk-pixbuf robust against invalid
232	images, using gdk-pixbuf to load untrusted data is not recommended, due to	431	images, using gdk-pixbuf to load untrusted data is not recommended, due to
233	the likelyhood that there are additional problems where an invalid image	432	the likelyhood that there are additional problems where an invalid image
234	could cause gdk-pixbuf to crash or worse."	433	could cause gdk-pixbuf to crash or worse."
235		434
236	=head1 BUGS/TODO	435	=head1 BUGS/TODO
237		436
		437	Lots of functionality is missing.
		438
238	Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names	439	Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
239	incompatible with utf-8 fails.	440	names incompatible with utf-8 might fail.
240		441
241	rotate on disk	442	rotate on disk
242	print
243	lots of ui issues	443	lots of ui issues
244	save(?)	444	save(?)
245	preferences	445	preferences
246	ctrl-u in schnauzer
247	shift-cursor in schnauzer
248		446
249	=head1 AUTHOR	447	=head1 AUTHOR
250		448
251	Marc Lehmann <cv@plan9.de>.	449	Marc Lehmann <cv@plan9.de>.
252		450

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing CV/bin/cv (file contents): Revision 1.37 by root, Fri Mar 18 03:45:29 2005 UTC vs. Revision 1.62 by root, Tue Oct 4 04:55:47 2005 UTC

Diff Legend

Comparing CV/bin/cv (file contents):
Revision 1.37 by root, Fri Mar 18 03:45:29 2005 UTC vs.
Revision 1.62 by root, Tue Oct 4 04:55:47 2005 UTC