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Comparing CV/bin/cv (file contents):
Revision 1.45 by root, Sun Jul 17 04:41:29 2005 UTC vs.
Revision 1.52 by root, Sun Aug 14 19:07:15 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
18require Gtk2::CV::Plugin;
19require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
20 25
21my $mainwin; 26my $mainwin;
22my $viewer; 27my $viewer;
23my $schnauzer; 28my $schnauzer;
24my $info; 29my $info;
… …
122 127
123 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
124} 129}
125 130
126if (@ARGV) { 131if (@ARGV) {
132 @ARGV == 1 && -d $ARGV[0]
133 ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
127 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); 134 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
128 $schnauzer->show_all; 135 $schnauzer->show_all;
129 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
130} else { 137} else {
131 $schnauzer->set_dir (File::Spec->curdir); 138 $schnauzer->set_dir (File::Spec->curdir);
132 $mainwin->show_all; 139 $mainwin->show_all;
133 $viewer->show_all;
134} 140}
135 141
136$viewer->show_all; 142$viewer->show_all;
137 143
138main Gtk2; 144main Gtk2;
139 145
140__DATA__ 146__DATA__
141 147
142=head1 NAME 148=head1 NAME
143 149
144cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
145 151
146=head1 SYNOPSIS 152=head1 SYNOPSIS
147 153
148 cv [file...] 154 cv [file...]
149 155
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 * use of asynchronous I/O
175
176CV tries to use asynchronous I/O whereever it makes sense, for example
177while scanning directories, waiting for stat data or unlinking files. This
178usually decreases scanning times for large directories a bit (especially
179on RAID devices and over NFS).
180
181=item * fast image loading
182
183The time span between the user issuing a command and displaying the new
184image should be as small as possible. CV uses optimized (especially
185for JPEG) loading functions and sacrifices some quality (e.g no gamma
186correction) to achieve this speed.
187
188=item * fast thumbnail creation
189
190Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
191creation for JPEGs has been specially optimized.
192
193=item * minimum optical clutter
194
195CV has no menus or other user interface elements that take up a lot of
196screen space. The schnauzer windows can also be somewhat crowded.
197
198The point of an image viewer is viewing images, not a nice GUI. This is
199similar to XV's behaviour.
200
201=item * efficient (and hard to learn) user interface
202
203CV uses key combinations. A lot. If you are an experienced XV user, you
204will find most of these keys familiar. If not, CV might be hard to use at
205first, but will be an efficient tool later.
206
207=item * i18n'ed filename handling throughout
208
209As long as glib can recognize your filename encoding (either UTF-8 or
210locale-specific, depending on your settings) and you have the relevant
211fonts, CV will display your filenames correctly.
212
213=item * extensible through plug-ins
214
215I have weird plug-ins that access remote databases to find a
216directory. This is not likely to be of any use to other people. Likewise,
217others might have weird requirements I cannot dream of.
218
219=item * filename clustering
220
221Among the standard plug-ins is a filename clustering plug-in, that (in
222case of tens of thousands images in one directory) might be able to
223cluster similar names together.
224
225=back
226
150=head1 DESCRIPTION 227=head1 DESCRIPTION
151 228
152None yet.
153
154=head2 THE IMAGE WINDOW 229=head2 THE IMAGE WINDOW
155 230
156You can use the following keys in the image window: 231You can use the following keys in the image window:
157 232
158 q quit the program 233 q quit the program
159 < half the image size 234 < half the image size
160 > double the image size 235 > double the image size
161 , shrink the image by 10% 236 , shrink the image by 10%
162 . enlarge the image by 10% 237 . enlarge the image by 10%
163 n reset to normal size 238 n reset to normal size
164 m maximize to screensize 239 m maximize to screensize
165 M maxime to screensize, respecting image aspect 240 M maximize to screensize, respecting image aspect
166 ctrl-m toggle maxpect-always mode 241 ctrl-m toggle maxpect-always mode
167 u uncrop 242 u uncrop
168 r set scaling mode to 'nearest' (fastest) 243 r set scaling mode to 'nearest' (fastest)
169 s set scaling mode to 'bilinear' (default) 244 s set scaling mode to 'bilinear' (default)
170 S set scaling mode to 'hyper' (slowest) 245 shift-s set scaling mode to 'hyper' (slowest)
171 t rotate clockwise 90° 246 t rotate clockwise 90°
172 T rotate counterclockwise° 247 T rotate counterclockwise°
173 ctrl-v open a new visual schnauzer window for the current dir 248 ctrl-v open a new visual schnauzer window for the current dir
174 ctrl-s rescan visual schnauzer files for updates/deletes etc.
175 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image. 249 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
250 ctrl-p fire up the print fialog
251 escape cancel a crop action
176 252
177And when playing movies, these additional keys are active: 253And when playing movies, these additional keys are active:
178 254
179 left rewind by 10 seconds 255 left rewind by 10 seconds
180 right forward by 10 seconds 256 right forward by 10 seconds
181 down rewind by 60 seconds 257 down rewind by 60 seconds
182 up forward by 60 seconds 258 up forward by 60 seconds
183 pg_up rewind by 600 seconds 259 pg_up rewind by 600 seconds
184 pg_down forward by 600 seconds 260 pg_down forward by 600 seconds
185 o toggle on-screen display 261 o toggle on-screen display
186 p pause/unpause 262 p pause/unpause
187 escape stop playing 263 escape stop playing
188 9 turn volume down 264 9 turn volume down
189 0 turn volume up 265 0 turn volume up
190 266
191The following keys are redirected to the default visual schnauzer window: 267Any other keys will be sent to the default schnauzer window, which can be
268toggled on and off by right-clicking into the image window.
192 269
193 space next image 270Left-clicking into the image window will let you crop the image (usually
194 backspace last image 271to zoom into large images that CV scales down).
195 272
196=head2 THE VISUAL SCHNAUZER 273=head2 THE VISUAL SCHNAUZER
197 274
198You can use the following keys in the schnauzer window: 275You can use the following keys in the schnauzer window:
199 276
277 ctrl-space,
200 space move to and display next image 278 space move to and display next image
279 ctrl-backspace,
201 backspace move to and display previous image 280 backspace move to and display previous image
281 ctrl-return,
202 return display selected picture 282 return display selected picture, or enter directory
203 283
204 cursor keys move selection 284 cursor keys move selection
205 page-up move one page up 285 page-up move one page up
206 page-down move one page down 286 page-down move one page down
207 home move to first file 287 home move to first file
208 end move to last file 288 end move to last file
209 289
290 ctrl-a select all files
291 ctrl-shift-a select all files currently displayed in the schnauzer window
210 ctrl-d delete selected files WITHOUT ASKING AGAIN 292 ctrl-d delete selected files WITHOUT ASKING AGAIN
211 ctrl-g generate icons for the selected files 293 ctrl-g force generation of thumbnais for the selected files
294 ctrl-s rescan current direcory or files updates/deletes etc.
212 ctrl-u update selected (or all) icons if neccessary 295 ctrl-u update selected (or all) icons if neccessary
213 ctrl-a select all files 296 ctrl-l don't use, will become a plug-in eventually
297
298 0-9,
299 a-z find the first filename beginning with this letter
300
301Right-clicking into the schnauzer window displays a pop-up menu with
302additional actions.
303
304=head1 FILES
305
306When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
307it were a perl script. in that, you will mostly load plug-ins.
308
309Example:
310
311 system "fping -q -t 10 ether"
312 or require "/fs/cv/cvplugin.pl";
313
314This will load a plug-in, but only if the machine I<ether> is reachable
315(supposedly the plug-in is networked in some way :).
214 316
215=head1 ENVIRONMENT 317=head1 ENVIRONMENT
216 318
217=over 4 319=over 4
218 320
… …
242the likelyhood that there are additional problems where an invalid image 344the likelyhood that there are additional problems where an invalid image
243could cause gdk-pixbuf to crash or worse." 345could cause gdk-pixbuf to crash or worse."
244 346
245=head1 BUGS/TODO 347=head1 BUGS/TODO
246 348
349 Lots of functionality is missing.
350
247 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 351 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
248 incompatible with utf-8 fails. 352 names incompatible might utf-8 fail.
249 353
250 rotate on disk 354 rotate on disk
251 print
252 lots of ui issues 355 lots of ui issues
253 save(?) 356 save(?)
254 preferences 357 preferences
255 ctrl-u in schnauzer
256 shift-cursor in schnauzer 358 shift-cursor in schnauzer
257 359
258=head1 AUTHOR 360=head1 AUTHOR
259 361
260Marc Lehmann <cv@plan9.de>. 362Marc Lehmann <cv@plan9.de>.

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