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Comparing CV/bin/cv (file contents):
Revision 1.44 by root, Fri Jul 15 03:25:57 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;
… …
112 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });
113 118
114 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
115 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
116 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
117 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
118 $hbox->pack_start (($info = new Gtk2::Label), 1, 1, 0); 123 $hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
119 $info->set (wrap => 1); 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");
120 127
121 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
122} 129}
123 130
124if (@ARGV) { 131if (@ARGV) {
… …
126 $schnauzer->show_all; 133 $schnauzer->show_all;
127 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 134 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
128} else { 135} else {
129 $schnauzer->set_dir (File::Spec->curdir); 136 $schnauzer->set_dir (File::Spec->curdir);
130 $mainwin->show_all; 137 $mainwin->show_all;
131 $viewer->show_all;
132} 138}
133 139
134$viewer->show_all; 140$viewer->show_all;
135 141
136main Gtk2; 142main Gtk2;
137 143
138__DATA__ 144__DATA__
139 145
140=head1 NAME 146=head1 NAME
141 147
142cv - a fast gtk+ image viewer modeled after xv 148cv - a fast gtk+ image viewer loosely modeled after XV
143 149
144=head1 SYNOPSIS 150=head1 SYNOPSIS
145 151
146 cv [file...] 152 cv [file...]
147 153
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
148=head1 DESCRIPTION 225=head1 DESCRIPTION
149 226
150None yet.
151
152=head2 THE IMAGE WINDOW 227=head2 THE IMAGE WINDOW
153 228
154You can use the following keys in the image window: 229You can use the following keys in the image window:
155 230
156 q quit the program 231 q quit the program
157 < half the image size 232 < half the image size
158 > double the image size 233 > double the image size
159 , shrink the image by 10% 234 , shrink the image by 10%
160 . enlarge the image by 10% 235 . enlarge the image by 10%
161 n reset to normal size 236 n reset to normal size
162 m maximize to screensize 237 m maximize to screensize
163 M maxime to screensize, respecting image aspect 238 M maximize to screensize, respecting image aspect
164 ctrl-m toggle maxpect-always mode 239 ctrl-m toggle maxpect-always mode
165 u uncrop 240 u uncrop
166 r set scaling mode to 'nearest' (fastest) 241 r set scaling mode to 'nearest' (fastest)
167 s set scaling mode to 'bilinear' (default) 242 s set scaling mode to 'bilinear' (default)
168 S set scaling mode to 'hyper' (slowest) 243 shift-s set scaling mode to 'hyper' (slowest)
169 t rotate clockwise 90° 244 t rotate clockwise 90°
170 T rotate counterclockwise° 245 T rotate counterclockwise°
171 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
172 ctrl-s rescan visual schnauzer files for updates/deletes etc.
173 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
174 250
175And when playing movies, these additional keys are active: 251And when playing movies, these additional keys are active:
176 252
177 left rewind by 10 seconds 253 left rewind by 10 seconds
178 right forward by 10 seconds 254 right forward by 10 seconds
179 down rewind by 60 seconds 255 down rewind by 60 seconds
180 up forward by 60 seconds 256 up forward by 60 seconds
181 pg_up rewind by 600 seconds 257 pg_up rewind by 600 seconds
182 pg_down forward by 600 seconds 258 pg_down forward by 600 seconds
183 o toggle on-screen display 259 o toggle on-screen display
184 p pause/unpause 260 p pause/unpause
185 escape stop playing 261 escape stop playing
186 9 turn volume down 262 9 turn volume down
187 0 turn volume up 263 0 turn volume up
188 264
189The 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.
190 267
191 space next image 268Left-clicking into the image window will let you crop the image (usually
192 backspace last image 269to zoom into large images that CV scales down).
193 270
194=head2 THE VISUAL SCHNAUZER 271=head2 THE VISUAL SCHNAUZER
195 272
196You can use the following keys in the schnauzer window: 273You can use the following keys in the schnauzer window:
197 274
275 ctrl-space,
198 space move to and display next image 276 space move to and display next image
277 ctrl-backspace,
199 backspace move to and display previous image 278 backspace move to and display previous image
279 ctrl-return,
200 return display selected picture 280 return display selected picture, or enter directory
201 281
202 cursor keys move selection 282 cursor keys move selection
203 page-up move one page up 283 page-up move one page up
204 page-down move one page down 284 page-down move one page down
205 home move to first file 285 home move to first file
206 end move to last file 286 end move to last file
207 287
288 ctrl-a select all files
289 ctrl-shift-a select all files currently displayed in the schnauzer window
208 ctrl-d delete selected files WITHOUT ASKING AGAIN 290 ctrl-d delete selected files WITHOUT ASKING AGAIN
209 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.
210 ctrl-u update selected (or all) icons if neccessary 293 ctrl-u update selected (or all) icons if neccessary
211 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 :).
212 314
213=head1 ENVIRONMENT 315=head1 ENVIRONMENT
214 316
215=over 4 317=over 4
216 318
… …
240the likelyhood that there are additional problems where an invalid image 342the likelyhood that there are additional problems where an invalid image
241could cause gdk-pixbuf to crash or worse." 343could cause gdk-pixbuf to crash or worse."
242 344
243=head1 BUGS/TODO 345=head1 BUGS/TODO
244 346
347 Lots of functionality is missing.
348
245 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
246 incompatible with utf-8 fails. 350 names incompatible might utf-8 fail.
247 351
248 rotate on disk 352 rotate on disk
249 print
250 lots of ui issues 353 lots of ui issues
251 save(?) 354 save(?)
252 preferences 355 preferences
253 ctrl-u in schnauzer
254 shift-cursor in schnauzer 356 shift-cursor in schnauzer
255 357
256=head1 AUTHOR 358=head1 AUTHOR
257 359
258Marc Lehmann <cv@plan9.de>. 360Marc Lehmann <cv@plan9.de>.

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