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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 1.51 by root, Sun Aug 14 02:25:44 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;
… …
128 $schnauzer->show_all; 133 $schnauzer->show_all;
129 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 134 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
130} else { 135} else {
131 $schnauzer->set_dir (File::Spec->curdir); 136 $schnauzer->set_dir (File::Spec->curdir);
132 $mainwin->show_all; 137 $mainwin->show_all;
133 $viewer->show_all;
134} 138}
135 139
136$viewer->show_all; 140$viewer->show_all;
137 141
138main Gtk2; 142main Gtk2;
139 143
140__DATA__ 144__DATA__
141 145
142=head1 NAME 146=head1 NAME
143 147
144cv - a fast gtk+ image viewer modeled after xv 148cv - a fast gtk+ image viewer loosely modeled after XV
145 149
146=head1 SYNOPSIS 150=head1 SYNOPSIS
147 151
148 cv [file...] 152 cv [file...]
149 153
154=head1 FEATURES
155
156CV is supposed to work similar to the venerable XV image viewer, just
157faster. Why faster?
158
159=over 4
160
161=item * optimized directory scanning algorithm
162
163The directory scanning in CV plays some tricks that - on most modern
164filesystems - makes it possible to detect filetypes faster than stat()'ing
165every file. This makes CV suitable for directories with lots of files
166(10000+).
167
168This algorithm is quite unprecise - it doesn't make a difference between
169files, device nodes, symlinks and the like, and filetype detection is done
170using the file extension only.
171
172=item * use of asynchronous I/O
173
174CV tries to use asynchronous I/O whereever it makes sense, for example
175while scanning directories, waiting for stat data or unlinking files. This
176usually decreases scanning times for large directories a bit (especially
177on RAID devices and over NFS).
178
179=item * fast image loading
180
181The time span between the user issuing a command and displaying the new
182image should be as small as possible. CV uses optimized (especially
183for JPEG) loading functions and sacrifices some quality (e.g no gamma
184correction) to achieve this speed.
185
186=item * fast thumbnail creation
187
188Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
189creation for JPEGs has been specially optimized.
190
191=item * minimum optical clutter
192
193CV has no menus or other user interface elements that take up a lot of
194screen space. The schnauzer windows can also be somewhat crowded.
195
196The point of an image viewer is viewing images, not a nice GUI. This is
197similar to XV's behaviour.
198
199=item * efficient (and hard to learn) user interface
200
201CV uses key combinations. A lot. If you are an experienced XV user, you
202will find most of these keys familiar. If not, CV might be hard to use at
203first, but will be an efficient tool later.
204
205=item * i18n'ed filename handling throughout
206
207As long as glib can recognize your filename encoding (either UTF-8 or
208locale-specific, depending on your settings) and you have the relevant
209fonts, CV will display your filenames correctly.
210
211=item * extensible through plug-ins
212
213I have weird plug-ins that access remote databases to find a
214directory. This is not likely to be of any use to other people. Likewise,
215others might have weird requirements I cannot dream of.
216
217=item * filename clustering
218
219Among the standard plug-ins is a filename clustering plug-in, that (in
220case of tens of thousands images in one directory) might be able to
221cluster similar names together.
222
223=back
224
150=head1 DESCRIPTION 225=head1 DESCRIPTION
151 226
152None yet.
153
154=head2 THE IMAGE WINDOW 227=head2 THE IMAGE WINDOW
155 228
156You can use the following keys in the image window: 229You can use the following keys in the image window:
157 230
158 q quit the program 231 q quit the program
159 < half the image size 232 < half the image size
160 > double the image size 233 > double the image size
161 , shrink the image by 10% 234 , shrink the image by 10%
162 . enlarge the image by 10% 235 . enlarge the image by 10%
163 n reset to normal size 236 n reset to normal size
164 m maximize to screensize 237 m maximize to screensize
165 M maxime to screensize, respecting image aspect 238 M maximize to screensize, respecting image aspect
166 ctrl-m toggle maxpect-always mode 239 ctrl-m toggle maxpect-always mode
167 u uncrop 240 u uncrop
168 r set scaling mode to 'nearest' (fastest) 241 r set scaling mode to 'nearest' (fastest)
169 s set scaling mode to 'bilinear' (default) 242 s set scaling mode to 'bilinear' (default)
170 S set scaling mode to 'hyper' (slowest) 243 shift-s set scaling mode to 'hyper' (slowest)
171 t rotate clockwise 90° 244 t rotate clockwise 90°
172 T rotate counterclockwise° 245 T rotate counterclockwise°
173 ctrl-v open a new visual schnauzer window for the current dir 246 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. 247 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
248 ctrl-p fire up the print fialog
249 escape cancel a crop action
176 250
177And when playing movies, these additional keys are active: 251And when playing movies, these additional keys are active:
178 252
179 left rewind by 10 seconds 253 left rewind by 10 seconds
180 right forward by 10 seconds 254 right forward by 10 seconds
181 down rewind by 60 seconds 255 down rewind by 60 seconds
182 up forward by 60 seconds 256 up forward by 60 seconds
183 pg_up rewind by 600 seconds 257 pg_up rewind by 600 seconds
184 pg_down forward by 600 seconds 258 pg_down forward by 600 seconds
185 o toggle on-screen display 259 o toggle on-screen display
186 p pause/unpause 260 p pause/unpause
187 escape stop playing 261 escape stop playing
188 9 turn volume down 262 9 turn volume down
189 0 turn volume up 263 0 turn volume up
190 264
191The following keys are redirected to the default visual schnauzer window: 265Any other keys will be sent to the default schnauzer window, which can be
266toggled on and off by right-clicking into the image window.
192 267
193 space next image 268Left-clicking into the image window will let you crop the image (usually
194 backspace last image 269to zoom into large images that CV scales down).
195 270
196=head2 THE VISUAL SCHNAUZER 271=head2 THE VISUAL SCHNAUZER
197 272
198You can use the following keys in the schnauzer window: 273You can use the following keys in the schnauzer window:
199 274
275 ctrl-space,
200 space move to and display next image 276 space move to and display next image
277 ctrl-backspace,
201 backspace move to and display previous image 278 backspace move to and display previous image
279 ctrl-return,
202 return display selected picture 280 return display selected picture, or enter directory
203 281
204 cursor keys move selection 282 cursor keys move selection
205 page-up move one page up 283 page-up move one page up
206 page-down move one page down 284 page-down move one page down
207 home move to first file 285 home move to first file
208 end move to last file 286 end move to last file
209 287
288 ctrl-a select all files
289 ctrl-shift-a select all files currently displayed in the schnauzer window
210 ctrl-d delete selected files WITHOUT ASKING AGAIN 290 ctrl-d delete selected files WITHOUT ASKING AGAIN
211 ctrl-g generate icons for the selected files 291 ctrl-g force generation of thumbnais for the selected files
292 ctrl-s rescan current direcory or files updates/deletes etc.
212 ctrl-u update selected (or all) icons if neccessary 293 ctrl-u update selected (or all) icons if neccessary
213 ctrl-a select all files 294 ctrl-l don't use, will become a plug-in eventually
295
296 0-9,
297 a-z find the first filename beginning with this letter
298
299Right-clicking into the schnauzer window displays a pop-up menu with
300additional actions.
301
302=head1 FILES
303
304When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
305it were a perl script. in that, you will mostly load plug-ins.
306
307Example:
308
309 system "fping -q -t 10 ether"
310 or require "/fs/cv/cvplugin.pl";
311
312This will load a plug-in, but only if the machine I<ether> is reachable
313(supposedly the plug-in is networked in some way :).
214 314
215=head1 ENVIRONMENT 315=head1 ENVIRONMENT
216 316
217=over 4 317=over 4
218 318
… …
242the likelyhood that there are additional problems where an invalid image 342the likelyhood that there are additional problems where an invalid image
243could cause gdk-pixbuf to crash or worse." 343could cause gdk-pixbuf to crash or worse."
244 344
245=head1 BUGS/TODO 345=head1 BUGS/TODO
246 346
347 Lots of functionality is missing.
348
247 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 349 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
248 incompatible with utf-8 fails. 350 names incompatible might utf-8 fail.
249 351
250 rotate on disk 352 rotate on disk
251 print
252 lots of ui issues 353 lots of ui issues
253 save(?) 354 save(?)
254 preferences 355 preferences
255 ctrl-u in schnauzer
256 shift-cursor in schnauzer 356 shift-cursor in schnauzer
257 357
258=head1 AUTHOR 358=head1 AUTHOR
259 359
260Marc Lehmann <cv@plan9.de>. 360Marc Lehmann <cv@plan9.de>.

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