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Comparing CV/bin/cv (file contents):
Revision 1.37 by root, Fri Mar 18 03:45:29 2005 UTC vs.
Revision 1.54 by root, Fri Aug 19 00:19:52 2005 UTC

… …
4use Encode (); 4use Encode ();
5 5
6use Gtk2 -init; 6use Gtk2 -init;
7use Gtk2::Gdk::Keysyms; 7use Gtk2::Gdk::Keysyms;
8 8
9use Gtk2::CV;
10
9use Gtk2::CV::ImageWindow; 11use Gtk2::CV::ImageWindow;
10use Gtk2::CV::Schnauzer; 12use Gtk2::CV::Schnauzer;
11 13
12use 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;
13 21
14Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); 22Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
15 23
16use File::Spec; 24use File::Spec;
17 25
… …
32 (File::Spec->splitpath ($_[1]))[2], 40 (File::Spec->splitpath ($_[1]))[2],
33 -s $_[1]; 41 -s $_[1];
34 $info->set_label ($label); 42 $info->set_label ($label);
35 $viewer->load_image ($_[1]); 43 $viewer->load_image ($_[1]);
36 }); 44 });
37 $s->signal_connect (chdir => sub {
38 my ($self, $dir) = @_;
39 45
40 my $path = Cwd::abs_path $dir; 46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
41 47
42 $self->realize;
43 $self->window->property_change (
44 Gtk2::Gdk::Atom->intern ("_X_CWD", 0),
45 Gtk2::Gdk::Atom->intern ("UTF8_STRING", 0),
46 Gtk2::Gdk::CHARS, 'replace',
47 Encode::encode_utf8 $path,
48 );
49 });
50
51 $s; 48 $s
52} 49}
53 50
54sub std_keys { 51sub std_keys {
55 my $key = $_[1]->keyval; 52 my $key = $_[1]->keyval;
56 my $state = $_[1]->state; 53 my $state = $_[1]->state;
… …
84 $h->load_string (do { local $/; <DATA> }); 81 $h->load_string (do { local $/; <DATA> });
85 } 82 }
86 83
87 $help->show_all; 84 $help->show_all;
88 } else { 85 } else {
89 #$mainwin->show_all; 86 return 0;
90 $schnauzer->handle_key ($key, $state);
91 } 87 }
92 88
93 1; 89 1
94} 90}
95 91
96{ 92{
97 $viewer = new Gtk2::CV::ImageWindow; 93 $viewer = new Gtk2::CV::ImageWindow;
98 94
99 $viewer->set_title ("CV: Image"); 95 $viewer->set_title ("CV: Image");
100 96
101 $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 });
102 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
103 102
104 $viewer->signal_connect (button3_press_event => sub { 103 $viewer->signal_connect (button3_press_event => sub {
105 $mainwin->visible 104 $mainwin->visible
106 ? $mainwin->hide 105 ? $mainwin->hide
107 : $mainwin->show_all; 106 : $mainwin->show_all;
108 1; 107 1
109 }); 108 });
109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
110 111
111 $schnauzer = new_schnauzer; 112 $schnauzer = new_schnauzer;
112 113
113 $mainwin = new Gtk2::Window; 114 $mainwin = new Gtk2::Window;
114 $mainwin->set_title ("CV"); 115 $mainwin->set_title ("CV");
115 $mainwin->add (my $vbox = new Gtk2::VBox); 116 $mainwin->add (my $vbox = new Gtk2::VBox);
116 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
117 118
118 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
119 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
120 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
121 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
122 $hbox->pack_start (($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");
123 127
124 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
125} 129}
126 130
127if (@ARGV) { 131if (@ARGV) {
132 @ARGV == 1 && -d $ARGV[0]
133 ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
128 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); 134 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
129 $schnauzer->show_all; 135 $schnauzer->show_all;
130 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
131} else { 137} else {
132 $schnauzer->set_dir (File::Spec->curdir); 138 $schnauzer->set_dir (File::Spec->curdir);
133 $mainwin->show_all; 139 $mainwin->show_all;
134 $viewer->show_all;
135} 140}
136 141
137$viewer->show_all; 142$viewer->show_all;
138 143
139main Gtk2; 144main Gtk2;
140 145
141__DATA__ 146__DATA__
142 147
143=head1 NAME 148=head1 NAME
144 149
145cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
146 151
147=head1 SYNOPSIS 152=head1 SYNOPSIS
148 153
149 cv [file...] 154 cv [file...]
150 155
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
151=head1 DESCRIPTION 234=head1 DESCRIPTION
152 235
153None yet.
154
155=head2 THE IMAGE WINDOW 236=head2 THE IMAGE WINDOW
156 237
157You can use the following keys in the image window: 238You can use the following keys in the image window:
158 239
159 q quit the program 240 q quit the program
160 < half the image size 241 < half the image size
161 > double the image size 242 > double the image size
162 , shrink the image by 10% 243 , shrink the image by 10%
163 . enlarge the image by 10% 244 . enlarge the image by 10%
164 n reset to normal size 245 n reset to normal size
165 m maximize to screensize 246 m maximize to screensize
166 M maxime to screensize, respecting image aspect 247 M maximize to screensize, respecting image aspect
167 ctrl-m toggle maxpect-always mode 248 ctrl-m toggle maxpect-always mode
168 u uncrop 249 u uncrop
169 r set scaling mode to 'nearest' (fastest) 250 r set scaling mode to 'nearest' (fastest)
170 s set scaling mode to 'bilinear' (default) 251 s set scaling mode to 'bilinear' (default)
171 S set scaling mode to 'hyper' (slowest) 252 shift-s set scaling mode to 'hyper' (slowest)
172 t rotate clockwise 90° 253 t rotate clockwise 90°
173 T rotate counterclockwise° 254 T rotate counterclockwise°
174 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
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. 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
177 259
178And when playing movies, these additional keys are active: 260And when playing movies, these additional keys are active:
179 261
180 left rewind by 10 seconds 262 left rewind by 10 seconds
181 right forward by 10 seconds 263 right forward by 10 seconds
182 down rewind by 60 seconds 264 down rewind by 60 seconds
183 up forward by 60 seconds 265 up forward by 60 seconds
184 pg_up rewind by 600 seconds 266 pg_up rewind by 600 seconds
185 pg_down forward by 600 seconds 267 pg_down forward by 600 seconds
186 o toggle on-screen display 268 o toggle on-screen display
187 p pause/unpause 269 p pause/unpause
188 escape stop playing 270 escape stop playing
189 9 turn volume down 271 9 turn volume down
190 0 turn volume up 272 0 turn volume up
191 273
192The following keys are redirected to the default visual schnauzer window: 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.
193 276
194 space next image 277Left-clicking into the image window will let you crop the image (usually
195 backspace last image 278to zoom into large images that CV scales down).
196 279
197=head2 THE VISUAL SCHNAUZER 280=head2 THE VISUAL SCHNAUZER
198 281
199You can use the following keys in the schnauzer window: 282You can use the following keys in the schnauzer window:
200 283
284 ctrl-space,
201 space move to and display next image 285 space move to and display next image
286 ctrl-backspace,
202 backspace move to and display previous image 287 backspace move to and display previous image
288 ctrl-return,
203 return display selected picture 289 return display selected picture, or enter directory
204 290
205 cursor keys move selection 291 cursor keys move selection
206 page-up move one page up 292 page-up move one page up
207 page-down move one page down 293 page-down move one page down
208 home move to first file 294 home move to first file
209 end move to last file 295 end move to last file
210 296
297 ctrl-a select all files
298 ctrl-shift-a select all files currently displayed in the schnauzer window
211 ctrl-d delete selected files WITHOUT ASKING AGAIN 299 ctrl-d delete selected files WITHOUT ASKING AGAIN
212 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.
213 ctrl-u update selected (or all) icons if neccessary 302 ctrl-u update selected (or all) icons if neccessary
214 ctrl-a select all files 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 :).
215 323
216=head1 ENVIRONMENT 324=head1 ENVIRONMENT
217 325
218=over 4 326=over 4
219 327
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
220=item CV_PRINT_DESTINATION 333=item CV_PRINT_DESTINATION
221 334
222The default (perl-style) destination to use in the print dialog. 335The default (perl-style) destination to use in the print dialog.
223 336
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
224=back 342=back
225 343
226=head1 SECURITY CONSIDERATIONS 344=head1 SECURITY CONSIDERATIONS
227 345
228CV uses Pixbuf to load images. Pixbuf is not considered safe for this 346CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
229purpose, though (from the gtk-2.2 release notes): 347this purpose, though (from the gtk-2.2 release notes):
230 348
231"While efforts have been made to make gdk-pixbuf robust against invalid 349"While efforts have been made to make gdk-pixbuf robust against invalid
232images, using gdk-pixbuf to load untrusted data is not recommended, due to 350images, using gdk-pixbuf to load untrusted data is not recommended, due to
233the likelyhood that there are additional problems where an invalid image 351the likelyhood that there are additional problems where an invalid image
234could cause gdk-pixbuf to crash or worse." 352could cause gdk-pixbuf to crash or worse."
235 353
236=head1 BUGS/TODO 354=head1 BUGS/TODO
237 355
356 Lots of functionality is missing.
357
238 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
239 incompatible with utf-8 fails. 359 names incompatible with utf-8 might fail.
240 360
241 rotate on disk 361 rotate on disk
242 print
243 lots of ui issues 362 lots of ui issues
244 save(?) 363 save(?)
245 preferences 364 preferences
246 ctrl-u in schnauzer
247 shift-cursor in schnauzer
248 365
249=head1 AUTHOR 366=head1 AUTHOR
250 367
251Marc Lehmann <cv@plan9.de>. 368Marc Lehmann <cv@plan9.de>.
252 369

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