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

Comparing CV/bin/cv (file contents):
Revision 1.47 by root, Wed Jul 20 09:06:37 2005 UTC vs.
Revision 1.67 by root, Mon Mar 20 04:18:01 2006 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
18	require Gtk2::CV::Plugin;
19	require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
20		25
21	my $mainwin;	26	my $mainwin;
22	my $viewer;	27	my $viewer;
		28	my $viewer_count;
23	my $schnauzer;	29	my $schnauzer;
24	my $info;	30	my $info;
25	my $help;	31	my $help;
26		32
27	my $schnauzer_idx = 0;	33	my $schnauzer_idx = 0;
…		…
33	$s->signal_connect (activate => sub {	39	$s->signal_connect (activate => sub {
34	my $label = sprintf "%s (%d)",	40	my $label = sprintf "%s (%d)",
35	(File::Spec->splitpath ($_[1]))[2],	41	(File::Spec->splitpath ($_[1]))[2],
36	-s $_[1];	42	-s $_[1];
37	$info->set_label ($label);	43	$info->set_label ($label);
38	$viewer->load_image ($_[1]);	44	$viewer->load_image ($_[1]) if $viewer; # TODO: error, or chose ANY viewer
39	});	45	});
40		46
41	Gtk2::CV::Plugin->call (new_schnauzer => $s);	47	Gtk2::CV::Plugin->call (new_schnauzer => $s);
42		48
43	$s;	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
		59	$self->signal_connect (key_press_event => sub {
		60	$viewer = $_[0];
		61
		62	my $key = $_[1]->keyval;
		63	my $state = $_[1]->state;
		64
		65	if ($state * "control-mask" && $key == $Gtk2::Gdk::Keysyms{c}) {
		66	my $viewer = new_viewer ();
		67	$viewer->set_image ($_[0]->{image});
		68	$viewer->show_all;
		69	1
		70	} else {
		71	&std_keys
		72	or $schnauzer->signal_emit (key_press_event => $_[1])
		73	}
		74	});
		75	$self->signal_connect (delete_event => sub { $_[0]->destroy; 0 });
		76	$self->signal_connect (destroy => sub {
		77	$viewer = undef if $viewer == $_[0];
		78
		79	main_quit Gtk2 unless --$viewer_count;
		80
		81	0
		82	});
		83
		84	$self->signal_connect (button3_press_event => sub {
		85	$mainwin->visible
		86	? $mainwin->hide
		87	: $mainwin->show_all;
		88
		89	1
		90	});
		91
		92	Gtk2::CV::Plugin->call (new_imagewindow => $self);
		93
		94	$self
44	}	95	}
45		96
46	sub std_keys {	97	sub std_keys {
47	my $key = $_[1]->keyval;	98	my $key = $_[1]->keyval;
48	my $state = $_[1]->state;	99	my $state = $_[1]->state;
49		100
50	my $ctrl = $state * "control-mask";	101	my $ctrl = $state * "control-mask";
51		102
52	if ($key == $Gtk2::Gdk::Keysyms{q}) {	103	if ($key == $Gtk2::Gdk::Keysyms{q}) {
53	main_quit Gtk2;	104	$viewer->destroy;
54	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {	105	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
55	my $w = new Gtk2::Window;	106	my $w = new Gtk2::Window;
56		107
		108	$w->set_role ("schnauzer");
57	$w->set_title ("CV: Schnauzer");	109	$w->set_title ("CV: Schnauzer");
58	$w->add (my $s = new_schnauzer);	110	$w->add (my $s = new_schnauzer);
59	$s->set_dir (File::Spec->curdir);	111	$s->set_dir (File::Spec->curdir);
60	$s->set_geometry_hints;	112	$s->set_geometry_hints;
61	$w->show_all;	113	$w->show_all;
…		…
63	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {	115	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
64	unless ($help) {	116	unless ($help) {
65	require Gtk2::PodViewer;	117	require Gtk2::PodViewer;
66		118
67	$help = new Gtk2::Window;	119	$help = new Gtk2::Window;
		120	$help->set_role ("help");
68	$help->set_title ("CV: Help");	121	$help->set_title ("CV: Help");
69	$help->set_default_size (500, 300);	122	$help->set_default_size (500, 300);
70	$help->signal_connect (delete_event => sub { $help->hide; 1 });	123	$help->signal_connect (delete_event => sub { $help->hide; 1 });
71		124
72	$help->add (my $sw = new Gtk2::ScrolledWindow);	125	$help->add (my $sw = new Gtk2::ScrolledWindow);
…		…
83		136
84	1	137	1
85	}	138	}
86		139
87	{	140	{
88	$viewer = new Gtk2::CV::ImageWindow;	141	$viewer = new_viewer;
89		142	$::cur_viewer = $viewer;
90	$viewer->set_title ("CV: Image");
91
92	$viewer->signal_connect (key_press_event => sub {
93	&std_keys
94	or $schnauzer->signal_emit (key_press_event => $_[1])
95	});
96	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
97
98	$viewer->signal_connect (button3_press_event => sub {
99	$mainwin->visible
100	? $mainwin->hide
101	: $mainwin->show_all;
102	1;
103	});
104
105	Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
106		143
107	$schnauzer = new_schnauzer;	144	$schnauzer = new_schnauzer;
108		145
109	$mainwin = new Gtk2::Window;	146	$mainwin = new Gtk2::Window;
		147	$mainwin->set_role ("main");
110	$mainwin->set_title ("CV");	148	$mainwin->set_title ("CV");
111	$mainwin->add (my $vbox = new Gtk2::VBox);	149	$mainwin->add (my $vbox = new Gtk2::VBox);
112	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });	150	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
113		151
114	$vbox->add ($schnauzer);	152	$vbox->add ($schnauzer);
115	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);	153	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
116	$frame->add (my $hbox = new Gtk2::HBox 0, 0);	154	$frame->add (my $hbox = new Gtk2::HBox 0, 0);
117	$hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);	155	$hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
…		…
122		160
123	$schnauzer->set_geometry_hints;	161	$schnauzer->set_geometry_hints;
124	}	162	}
125		163
126	if (@ARGV) {	164	if (@ARGV) {
		165	@ARGV == 1 && -d $ARGV[0]
		166	? $schnauzer->set_dir (Glib::filename_to_unicode shift)
127	$schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);	167	: $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV], 1);
128	$schnauzer->show_all;	168	$schnauzer->show_all;
129	$viewer->show_all;
130	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);	169	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
131	} else {	170	} else {
132	$schnauzer->set_dir (File::Spec->curdir);	171	$schnauzer->set_dir (File::Spec->curdir);
133	$mainwin->show_all;	172	$mainwin->show_all;
134	$viewer->show_all;
135	}	173	}
136		174
137	$viewer->show_all;	175	$viewer->show_all;
138		176
139	main Gtk2;	177	main Gtk2;
140		178
141	__DATA__	179	__DATA__
		180
		181	=encoding utf-8
142		182
143	=head1 NAME	183	=head1 NAME
144		184
145	cv - a fast gtk+ image viewer loosely modeled after XV	185	cv - a fast gtk+ image viewer loosely modeled after XV
146		186
…		…
155		195
156	=over 4	196	=over 4
157		197
158	=item * optimized directory scanning algorithm	198	=item * optimized directory scanning algorithm
159		199
160	The directory scanning in CV plays some tricks that - on most modern	200	The directory scanning in CV uses some tricks that - on most modern
161	filesystems - makes it possible to detect filetypes faster than stat()'ing	201	filesystems - makes it possible to detect filetypes faster than stat()'ing
162	every file. This makes CV suitable for directories with lots of files	202	every file. This makes CV suitable for directories with lots of files
163	(10000+).	203	(10000+).
164		204
165	This algorithm is quite unprecise - it doesn't make a difference between	205	This algorithm is quite unprecise - it doesn't make a difference between
166	files, device nodes, symlinks and the like, and filetype detection is done	206	files, device nodes, symlinks and the like, and filetype detection is done
167	using the file extension only.	207	using the file extension only.
168		208
		209	On the positive side, it is usually many orders of magnitude faster than
		210	traditional scanning techniques (good for directories with 10000 or
		211	100000+ files).
		212
		213	=item * queuing for all time-consuming background tasks
		214
		215	All tasks, such as unlinking files or generating thumbnails, that can be
		216	done in the background will be done so - no waiting required, even when
		217	changing directories.
		218
169	=item * use of asynchronous I/O	219	=item * use of asynchronous I/O
170		220
171	CV tries to use asynchronous I/O whereever it makes sense, for example	221	CV tries to use asynchronous I/O whereever it makes sense, for example
172	while scanning directories, waiting for stat data or unlinking files. This	222	while scanning directories, waiting for stat data, unlinking files or
173	usually decreases scanning times for large directories a bit (especially	223	generating thumbnails. This usually decreases scanning times for large
174	on RAID devices and over NFS).	224	directories a bit (especially on RAID devices and over NFS) and makes CV
		225	much more interactive.
175		226
176	=item * fast image loading	227	=item * fast image loading
177		228
178	The time span between the user issuing a command and displaying the new	229	The time span between the user issuing a command and displaying the new
179	image should be as small as possible. CV uses optimized (especially	230	image should be as small as possible. CV uses optimized (especially
180	for JPEG) loading functions and sacrifices some quality (e.g no gamma	231	for JPEG) loading functions and sacrifices some quality (e.g no gamma
181	correction) to achieve this speed.	232	correction, although this might change) to achieve this speed.
182		233
183	=item * fast thumbnail creation	234	=item * fast thumbnail creation
184		235
185	Thumbnail creation is crucial for me, so it's better be fast. Thumbnail	236	Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
		237	on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
186	creation for JPEGs has been specially optimized.	238	creation for JPEGs has been specially optimized and can even take
		239	advantage of multiple CPUs.
187		240
188	=item * minimum optical clutter	241	=item * minimum optical clutter
189		242
190	CV has no menus or other user interface elements that take up a lot of	243	CV has no menus or other user interface elements that take up a lot of
191	screen space. The schnauzer windows can also be somewhat crowded.	244	screen space (or are useful for beginning users). The schnauzer windows
		245	can also be somewhat crowded.
192		246
193	The point of an image viewer is viewing images, not a nice GUI. This is	247	The point of an image viewer is viewing images, not a nice GUI. This is
194	similar to XV's behaviour.	248	similar to XV's behaviour.
195		249
196	=item * efficient (and hard to learn) user interface	250	=item * efficient (and hard to learn) user interface
197		251
198	CV uses key combinations. A lot. If you are an experienced XV user, you	252	CV uses key combinations. A lot. If you are an experienced XV user, you
199	will find most of these keys familiar. If not, CV might be hard to use at	253	will find most of these keys familiar. If not, CV might be hard to use at
200	first, but will be an efficient tool later.	254	first, but will be an efficient tool later.
201		255
		256	=item * multi-window GUI
		257
		258	CV doesn't force you to use a specific layout, instead it relies on your
		259	window manager, thus enabling you to chose whatever layout that suits you
		260	most.
		261
202	=item * i18n'ed filename handling throughout	262	=item * i18n'ed filename handling throughout
203		263
204	As long as glib can recognize your filename encoding (either UTF-8 or	264	As long as glib can recognize your filename encoding (either UTF-8 or
205	locale-specific, depending on your settings) and you have the relevant	265	locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
206	fonts, CV will display your filenames correctly.	266	have the relevant fonts, CV will display your filenames correctly.
207		267
208	=item * extensible through plug-ins	268	=item * extensible through plug-ins
209		269
210	I have weird plug-ins that access remote databases to find a	270	I have weird plug-ins that access remote databases to find a
211	directory. This is not likely to be of any use to other people. Likewise,	271	directory. This is not likely to be of any use to other people. Likewise,
…		…
223		283
224	=head2 THE IMAGE WINDOW	284	=head2 THE IMAGE WINDOW
225		285
226	You can use the following keys in the image window:	286	You can use the following keys in the image window:
227		287
228	q quit the program	288	q quit the program
229	< half the image size	289	< half the image size
230	> double the image size	290	> double the image size
231	, shrink the image by 10%	291	, shrink the image by 10%
232	. enlarge the image by 10%	292	. enlarge the image by 10%
233	n reset to normal size	293	n reset to normal size
234	m maximize to screensize	294	m maximize to screensize
235	M maximize to screensize, respecting image aspect	295	M maximize to screensize, respecting image aspect
236	ctrl-m toggle maxpect-always mode	296	ctrl-m toggle maxpect-always mode
		297	ctrl-sift-m toggle using current image size as max image size
237	u uncrop	298	u uncrop
238	r set scaling mode to 'nearest' (fastest)	299	r set scaling mode to 'nearest' (fastest)
239	s set scaling mode to 'bilinear' (default)	300	s set scaling mode to 'bilinear' (default)
240	shift-s set scaling mode to 'hyper' (slowest)	301	shift-s set scaling mode to 'hyper' (slowest)
241	t rotate clockwise 90°	302	t rotate clockwise 90°
242	T rotate counterclockwise°	303	T rotate counterclockwise°
		304	a apply all rotations loslessly to a jpeg file (using exiftran)
243	ctrl-v open a new visual schnauzer window for the current dir	305	ctrl-v open a new visual schnauzer window for the current dir
		306	ctrl-c clone the current image window
244	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image	307	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
245	ctrl-p fire up the print fialog	308	ctrl-p fire up the print dialog
246	escape cancel a crop action	309	escape cancel a crop action
247		310
248	And when playing movies, these additional keys are active:	311	And when playing movies, these additional keys are active:
249		312
250	left rewind by 10 seconds	313	left rewind by 10 seconds
251	right forward by 10 seconds	314	right forward by 10 seconds
252	down rewind by 60 seconds	315	down rewind by 60 seconds
253	up forward by 60 seconds	316	up forward by 60 seconds
254	pg_up rewind by 600 seconds	317	pg_up rewind by 600 seconds
255	pg_down forward by 600 seconds	318	pg_down forward by 600 seconds
256	o toggle on-screen display	319	o toggle on-screen display
257	p pause/unpause	320	p pause/unpause
258	escape stop playing	321	escape stop playing
259	9 turn volume down	322	9 turn volume down
260	0 turn volume up	323	0 turn volume up
261		324
262	Any other keys will be sent to the default schnauzer window, which can be	325	Any other keys will be sent to the default schnauzer window, which can be
263	toggled on and off by right-clicking into the image window.	326	toggled on and off by right-clicking into the image window.
264		327
265	Left-clicking into the image window will let you crop the image (usually	328	Left-clicking into the image window will let you crop the image (usually
266	to zoom into large images that CV scales down).	329	to zoom into large images that CV scales down).
267		330
268	=head2 THE VISUAL SCHNAUZER	331	=head2 THE VISUAL SCHNAUZER
269		332
		333	Any image-loading action in a schnauzer window acts on the
		334	"last-recently-activated" imagewindow, which currently is simply the last
		335	image window that received a keypress.
		336
270	You can use the following keys in the schnauzer window:	337	You can use the following keys in the schnauzer window:
271		338
272	ctrl-space,	339	ctrl-space,
273	space move to and display next image	340	space move to and display next image
274	ctrl-backspace,	341	ctrl-backspace,
275	backspace move to and display previous image	342	backspace move to and display previous image
276	ctrl-return,	343	ctrl-return,
277	return display selected picture, or enter directory	344	return display selected picture, or enter directory
278		345
279	cursor keys move selection	346	cursor keys move selection
280	page-up move one page up	347	page-up move one page up
281	page-down move one page down	348	page-down move one page down
282	home move to first file	349	home move to first file
283	end move to last file	350	end move to last file
284		351
285	ctrl-a select all files	352	ctrl-a select all files
		353	ctrl-shift-a select all files currently displayed in the schnauzer window
286	ctrl-d delete selected files WITHOUT ASKING AGAIN	354	ctrl-d delete selected files WITHOUT ASKING AGAIN
287	ctrl-g force generation of thumbnais for the selected files	355	ctrl-g force generation of thumbnais for the selected files
288	ctrl-s rescan current direcory or files updates/deletes etc.	356	ctrl-s rescan current direcory or files updates/deletes etc.
289	ctrl-u update selected (or all) icons if neccessary	357	ctrl-u update selected (or all) icons if neccessary
290	ctrl-l don't use, will become a plug-in eventually	358	ctrl-l don't use, will become a plug-in eventually
		359
		360	^ go to parent directory (caret).
291		361
292	0-9,	362	0-9,
293	a-z find the first filename beginning with this letter	363	a-z find the first filename beginning with this letter
294		364
295	Right-clicking into the schnauzer window displays a pop-up menu with	365	Right-clicking into the schnauzer window displays a pop-up menu with
296	additional actions.	366	additional actions.
297		367
		368	=head3 SELECTION
		369
		370	You can select entries in the Schnauzer in a variety of ways:
		371
		372	=over 4
		373
		374	=item Keyboard
		375
		376	Moving the cursor with the keyboard will first deselect all files and then
		377	select the file you moved to.
		378
		379	=item Clicking
		380
		381	Clicking on an entry will select the one you clicked and deselect all
		382	others.
		383
		384	=item Shift-Clicking
		385
		386	Shift-clicking will toggle the selection on the entry under the mouse.
		387
		388	=item Dragging
		389
		390	Dragging will select all entries between the one selected when pushing the
		391	button and the one selected when releasing the button. If you move above
		392	or below the schnauzer area while drag-selecting, the schnauzer will move
		393	up/down one row twice per second. In addition, horizontal mouse movement
		394	acts as a kind of invisible horizontal scrollbar.
		395
		396	=item Hint: double-click works while click-selecting
		397
		398	You can double-click any image while click-selecting to display it
		399	without stopping the selection process. This will act as if you normally
		400	double-clicked the image to display it, and will toggle the selection
		401	twice, resulting in no change.
		402
		403	=back
		404
298	=head1 FILES	405	=head1 FILES
299		406
300	When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if	407	When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
301	it were a perl script. in that, you will mostly load plug-ins.	408	it were a perl script. in that, you will mostly load plug-ins.
302		409
…		…
328		435
329	=back	436	=back
330		437
331	=head1 SECURITY CONSIDERATIONS	438	=head1 SECURITY CONSIDERATIONS
332		439
333	CV uses Pixbuf to load images. Pixbuf is not considered safe for this	440	CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
334	purpose, though (from the gtk-2.2 release notes):	441	this purpose, though (from the gtk-2.2 release notes):
335		442
336	"While efforts have been made to make gdk-pixbuf robust against invalid	443	"While efforts have been made to make gdk-pixbuf robust against invalid
337	images, using gdk-pixbuf to load untrusted data is not recommended, due to	444	images, using gdk-pixbuf to load untrusted data is not recommended, due to
338	the likelyhood that there are additional problems where an invalid image	445	the likelyhood that there are additional problems where an invalid image
339	could cause gdk-pixbuf to crash or worse."	446	could cause gdk-pixbuf to crash or worse."
…		…
341	=head1 BUGS/TODO	448	=head1 BUGS/TODO
342		449
343	Lots of functionality is missing.	450	Lots of functionality is missing.
344		451
345	Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with	452	Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
346	names incompatible might utf-8 fail.	453	names incompatible with utf-8 might fail.
347		454
348	rotate on disk	455	rotate on disk
349	lots of ui issues	456	lots of ui issues
350	save(?)	457	save(?)
351	preferences	458	preferences
352	shift-cursor in schnauzer
353		459
354	=head1 AUTHOR	460	=head1 AUTHOR
355		461
356	Marc Lehmann <cv@plan9.de>.	462	Marc Lehmann <cv@plan9.de>.
357		463

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Comparing CV/bin/cv (file contents): Revision 1.47 by root, Wed Jul 20 09:06:37 2005 UTC vs. Revision 1.67 by root, Mon Mar 20 04:18:01 2006 UTC

Diff Legend

Comparing CV/bin/cv (file contents):
Revision 1.47 by root, Wed Jul 20 09:06:37 2005 UTC vs.
Revision 1.67 by root, Mon Mar 20 04:18:01 2006 UTC