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Comparing CV/bin/cv (file contents):
Revision 1.25 by root, Wed Nov 12 19:36:06 2003 UTC vs.
Revision 1.53 by root, Tue Aug 16 02:46:58 2005 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2
3use Cwd ();
4use Encode ();
2 5
3use Gtk2 -init; 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;
7use Gtk2::CV::Schnauzer; 12use Gtk2::CV::Schnauzer;
8 13
9use Gtk2::CV; 14BEGIN {
15 require Gtk2::CV::Plugin;
16 require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
17}
18
19use Gtk2::CV::Plugin::NameCluster;
20use Gtk2::CV::Plugin::RCluster;
10 21
11Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); 22Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
12 23
13use File::Spec; 24use File::Spec;
14 25
… …
30 -s $_[1]; 41 -s $_[1];
31 $info->set_label ($label); 42 $info->set_label ($label);
32 $viewer->load_image ($_[1]); 43 $viewer->load_image ($_[1]);
33 }); 44 });
34 45
46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
47
35 $s; 48 $s
36} 49}
37 50
38sub std_keys { 51sub std_keys {
39 my $key = $_[1]->keyval; 52 my $key = $_[1]->keyval;
40 my $state = $_[1]->state; 53 my $state = $_[1]->state;
… …
43 56
44 if ($key == $Gtk2::Gdk::Keysyms{q}) { 57 if ($key == $Gtk2::Gdk::Keysyms{q}) {
45 main_quit Gtk2; 58 main_quit Gtk2;
46 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { 59 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
47 my $w = new Gtk2::Window; 60 my $w = new Gtk2::Window;
61
62 $w->set_title ("CV: Schnauzer");
48 $w->add (my $s = new_schnauzer); 63 $w->add (my $s = new_schnauzer);
49 $s->set_dir (File::Spec->curdir); 64 $s->set_dir (File::Spec->curdir);
50 $s->set_geometry_hints; 65 $s->set_geometry_hints;
51 $w->show_all; 66 $w->show_all;
52 67
53 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) { 68 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
54 unless ($help) { 69 unless ($help) {
55 require Gtk2::PodViewer; 70 require Gtk2::PodViewer;
56 71
57 $help = new Gtk2::Window; 72 $help = new Gtk2::Window;
58 $help->set_title ("CV Help"); 73 $help->set_title ("CV: Help");
59 $help->set_default_size (500, 300); 74 $help->set_default_size (500, 300);
60 $help->signal_connect (delete_event => sub { $help->hide; 1 }); 75 $help->signal_connect (delete_event => sub { $help->hide; 1 });
61 76
62 $help->add (my $sw = new Gtk2::ScrolledWindow); 77 $help->add (my $sw = new Gtk2::ScrolledWindow);
63 $sw->add (my $h = new Gtk2::PodViewer); 78 $sw->add (my $h = new Gtk2::PodViewer);
… …
66 $h->load_string (do { local $/; <DATA> }); 81 $h->load_string (do { local $/; <DATA> });
67 } 82 }
68 83
69 $help->show_all; 84 $help->show_all;
70 } else { 85 } else {
71 #$mainwin->show_all; 86 return 0;
72 $schnauzer->handle_key ($key, $state);
73 } 87 }
74 88
75 1; 89 1
76} 90}
77 91
78{ 92{
79 $viewer = new Gtk2::CV::ImageWindow; 93 $viewer = new Gtk2::CV::ImageWindow;
80 94
81 $viewer->set_title ("CV: Image"); 95 $viewer->set_title ("CV: Image");
82 96
83 $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 });
84 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
85 102
86 $viewer->signal_connect (button3_press_event => sub { 103 $viewer->signal_connect (button3_press_event => sub {
87 $mainwin->visible 104 $mainwin->visible
88 ? $mainwin->hide 105 ? $mainwin->hide
89 : $mainwin->show_all; 106 : $mainwin->show_all;
90 1; 107 1
91 }); 108 });
109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
92 111
93 $schnauzer = new_schnauzer; 112 $schnauzer = new_schnauzer;
94 113
95 $mainwin = new Gtk2::Window; 114 $mainwin = new Gtk2::Window;
96 $mainwin->set_title ("CV"); 115 $mainwin->set_title ("CV");
97 $mainwin->add (my $vbox = new Gtk2::VBox); 116 $mainwin->add (my $vbox = new Gtk2::VBox);
98 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
99 118
100 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
101 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
102 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
103 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
104 $hbox->pack_start (($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");
105 127
106 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
107} 129}
108 130
109if (@ARGV) { 131if (@ARGV) {
110 $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;
111 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
112} else { 137} else {
113 $schnauzer->set_dir (File::Spec->curdir); 138 $schnauzer->set_dir (File::Spec->curdir);
114 $mainwin->show_all; 139 $mainwin->show_all;
115} 140}
… …
120 145
121__DATA__ 146__DATA__
122 147
123=head1 NAME 148=head1 NAME
124 149
125cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
126 151
127=head1 SYNOPSIS 152=head1 SYNOPSIS
128 153
129 cv [file...] 154 cv [file...]
130 155
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
131=head1 DESCRIPTION 234=head1 DESCRIPTION
132 235
133None yet.
134
135=head2 THE IMAGE WINDOW 236=head2 THE IMAGE WINDOW
136 237
137You can use the following keys in the image window: 238You can use the following keys in the image window:
138 239
139 q quit the program 240 q quit the program
140 < half the image size 241 < half the image size
141 > double the image size 242 > double the image size
142 , shrink the image by 10% 243 , shrink the image by 10%
143 . enlarge the image by 10% 244 . enlarge the image by 10%
144 n reset to normal size 245 n reset to normal size
145 m maximize to screensize 246 m maximize to screensize
146 M maxime to screensize, respecting image aspect 247 M maximize to screensize, respecting image aspect
248 ctrl-m toggle maxpect-always mode
147 u uncrop 249 u uncrop
148 r set scaling mode to 'nearest' (fastest) 250 r set scaling mode to 'nearest' (fastest)
149 s set scaling mode to 'bilinear' (default) 251 s set scaling mode to 'bilinear' (default)
150 S set scaling mode to 'hyper' (slowest) 252 shift-s set scaling mode to 'hyper' (slowest)
151 t rotate clockwise 90° 253 t rotate clockwise 90°
152 T rotate counterclockwise° 254 T rotate counterclockwise°
153 ctrl-v open a new visual schnauzer window for the current dir 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
154 259
155The following keys are redirected to the default visual schnauzer window: 260And when playing movies, these additional keys are active:
156 261
157 space next image 262 left rewind by 10 seconds
158 backspace last image 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).
159 279
160=head2 THE VISUAL SCHNAUZER 280=head2 THE VISUAL SCHNAUZER
161 281
162You can use the following keys in the schnauzer window: 282You can use the following keys in the schnauzer window:
163 283
284 ctrl-space,
164 space move to and display next image 285 space move to and display next image
286 ctrl-backspace,
165 backspace move to and display previous image 287 backspace move to and display previous image
288 ctrl-return,
166 return display selected picture 289 return display selected picture, or enter directory
167 290
168 cursor keys move selection 291 cursor keys move selection
169 page-up move one page up 292 page-up move one page up
170 page-down move one page down 293 page-down move one page down
171 home move to first file 294 home move to first file
172 end move to last file 295 end move to last file
173 296
297 ctrl-a select all files
298 ctrl-shift-a select all files currently displayed in the schnauzer window
174 ctrl-d delete selected files WITHOUT ASKING AGAIN 299 ctrl-d delete selected files WITHOUT ASKING AGAIN
175 ctrl-g generate icons for the selected files 300 ctrl-g force generation of thumbnais for the selected files
301 ctrl-s rescan current direcory or files updates/deletes etc.
176 ctrl-u update selected (or all) icons if neccessary 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
177 343
178=head1 SECURITY CONSIDERATIONS 344=head1 SECURITY CONSIDERATIONS
179 345
180CV uses Pixbuf to load images. Pixbuf is not considered safe for this 346CV uses Pixbuf to load images. Pixbuf is not considered safe for this
181purpose, though (from the gtk-2.2 release notes): 347purpose, though (from the gtk-2.2 release notes):
… …
185the likelyhood that there are additional problems where an invalid image 351the likelyhood that there are additional problems where an invalid image
186could cause gdk-pixbuf to crash or worse." 352could cause gdk-pixbuf to crash or worse."
187 353
188=head1 BUGS/TODO 354=head1 BUGS/TODO
189 355
356 Lots of functionality is missing.
357
190 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 358 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
191 incompatible with utf-8 fails. 359 names incompatible might utf-8 fail.
192 360
193 rotate on disk 361 rotate on disk
194 print
195 lots of ui issues 362 lots of ui issues
196 save(?) 363 save(?)
197 preferences 364 preferences
198 ctrl-u in schnauzer
199 shift-cursor in schnauzer 365 shift-cursor in schnauzer
200 366
201=head1 AUTHOR 367=head1 AUTHOR
202 368
203Marc Lehmann <cv@plan9.de>. 369Marc Lehmann <cv@plan9.de>.

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