ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/CV/bin/cv
(Generate patch)

Comparing CV/bin/cv (file contents):
Revision 1.48 by root, Fri Jul 22 05:43:53 2005 UTC vs.
Revision 1.56 by root, Mon Aug 22 03:33:33 2005 UTC

… …
43 $viewer->load_image ($_[1]); 43 $viewer->load_image ($_[1]);
44 }); 44 });
45 45
46 Gtk2::CV::Plugin->call (new_schnauzer => $s); 46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
47 47
48 $s; 48 $s
49} 49}
50 50
51sub std_keys { 51sub std_keys {
52 my $key = $_[1]->keyval; 52 my $key = $_[1]->keyval;
53 my $state = $_[1]->state; 53 my $state = $_[1]->state;
… …
102 102
103 $viewer->signal_connect (button3_press_event => sub { 103 $viewer->signal_connect (button3_press_event => sub {
104 $mainwin->visible 104 $mainwin->visible
105 ? $mainwin->hide 105 ? $mainwin->hide
106 : $mainwin->show_all; 106 : $mainwin->show_all;
107 1; 107 1
108 }); 108 });
109 109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer); 110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
111 111
112 $schnauzer = new_schnauzer; 112 $schnauzer = new_schnauzer;
113 113
114 $mainwin = new Gtk2::Window; 114 $mainwin = new Gtk2::Window;
115 $mainwin->set_title ("CV"); 115 $mainwin->set_title ("CV");
116 $mainwin->add (my $vbox = new Gtk2::VBox); 116 $mainwin->add (my $vbox = new Gtk2::VBox);
117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
118 118
119 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
121 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
… …
127 127
128 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
129} 129}
130 130
131if (@ARGV) { 131if (@ARGV) {
132 @ARGV == 1 && -d $ARGV[0]
133 ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
132 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); 134 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
133 $schnauzer->show_all; 135 $schnauzer->show_all;
134$viewer->show_all;
135 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
136} else { 137} else {
137 $schnauzer->set_dir (File::Spec->curdir); 138 $schnauzer->set_dir (File::Spec->curdir);
138 $mainwin->show_all; 139 $mainwin->show_all;
139 $viewer->show_all;
140} 140}
141 141
142$viewer->show_all; 142$viewer->show_all;
143 143
144main Gtk2; 144main Gtk2;
… …
160 160
161=over 4 161=over 4
162 162
163=item * optimized directory scanning algorithm 163=item * optimized directory scanning algorithm
164 164
165The directory scanning in CV plays some tricks that - on most modern 165The directory scanning in CV uses some tricks that - on most modern
166filesystems - makes it possible to detect filetypes faster than stat()'ing 166filesystems - makes it possible to detect filetypes faster than stat()'ing
167every file. This makes CV suitable for directories with lots of files 167every file. This makes CV suitable for directories with lots of files
168(10000+). 168(10000+).
169 169
170This algorithm is quite unprecise - it doesn't make a difference between 170This algorithm is quite unprecise - it doesn't make a difference between
171files, device nodes, symlinks and the like, and filetype detection is done 171files, device nodes, symlinks and the like, and filetype detection is done
172using the file extension only. 172using the file extension only.
173 173
174On the positive side, it is usually many orders of magnitude faster than
175traditional scanning techniques (good for directories with 10000 or
176100000+ files).
177
178=item * queuing for all time-consuming background tasks
179
180All tasks, such as unlinking files or generating thumbnails, that can be
181done in the background will be done so - no waiting required, even when
182changing directories.
183
174=item * use of asynchronous I/O 184=item * use of asynchronous I/O
175 185
176CV tries to use asynchronous I/O whereever it makes sense, for example 186CV tries to use asynchronous I/O whereever it makes sense, for example
177while scanning directories, waiting for stat data or unlinking files. This 187while scanning directories, waiting for stat data, unlinking files or
178usually decreases scanning times for large directories a bit (especially 188generating thumbnails. This usually decreases scanning times for large
179on RAID devices and over NFS). 189directories a bit (especially on RAID devices and over NFS) and makes CV
190much more interactive.
180 191
181=item * fast image loading 192=item * fast image loading
182 193
183The time span between the user issuing a command and displaying the new 194The time span between the user issuing a command and displaying the new
184image should be as small as possible. CV uses optimized (especially 195image should be as small as possible. CV uses optimized (especially
185for JPEG) loading functions and sacrifices some quality (e.g no gamma 196for JPEG) loading functions and sacrifices some quality (e.g no gamma
186correction) to achieve this speed. 197correction, although this might change) to achieve this speed.
187 198
188=item * fast thumbnail creation 199=item * fast thumbnail creation
189 200
190Thumbnail creation is crucial for me, so it's better be fast. Thumbnail 201Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
202on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
191creation for JPEGs has been specially optimized. 203creation for JPEGs has been specially optimized and can even take
204advantage of multiple CPUs.
192 205
193=item * minimum optical clutter 206=item * minimum optical clutter
194 207
195CV has no menus or other user interface elements that take up a lot of 208CV has no menus or other user interface elements that take up a lot of
196screen space. The schnauzer windows can also be somewhat crowded. 209screen space (or are useful for beginning users). The schnauzer windows
210can also be somewhat crowded.
197 211
198The point of an image viewer is viewing images, not a nice GUI. This is 212The point of an image viewer is viewing images, not a nice GUI. This is
199similar to XV's behaviour. 213similar to XV's behaviour.
200 214
201=item * efficient (and hard to learn) user interface 215=item * efficient (and hard to learn) user interface
202 216
203CV uses key combinations. A lot. If you are an experienced XV user, you 217CV 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 218will find most of these keys familiar. If not, CV might be hard to use at
205first, but will be an efficient tool later. 219first, but will be an efficient tool later.
206 220
221=item * multi-window GUI
222
223CV doesn't force you to use a specific layout, instead it relies on your
224window manager, thus enabling you to chose whatever layout that suits you
225most.
226
207=item * i18n'ed filename handling throughout 227=item * i18n'ed filename handling throughout
208 228
209As long as glib can recognize your filename encoding (either UTF-8 or 229As long as glib can recognize your filename encoding (either UTF-8 or
210locale-specific, depending on your settings) and you have the relevant 230locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
211fonts, CV will display your filenames correctly. 231have the relevant fonts, CV will display your filenames correctly.
212 232
213=item * extensible through plug-ins 233=item * extensible through plug-ins
214 234
215I have weird plug-ins that access remote databases to find a 235I 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, 236directory. This is not likely to be of any use to other people. Likewise,
… …
228 248
229=head2 THE IMAGE WINDOW 249=head2 THE IMAGE WINDOW
230 250
231You can use the following keys in the image window: 251You can use the following keys in the image window:
232 252
233 q quit the program 253 q quit the program
234 < half the image size 254 < half the image size
235 > double the image size 255 > double the image size
236 , shrink the image by 10% 256 , shrink the image by 10%
237 . enlarge the image by 10% 257 . enlarge the image by 10%
238 n reset to normal size 258 n reset to normal size
239 m maximize to screensize 259 m maximize to screensize
240 M maximize to screensize, respecting image aspect 260 M maximize to screensize, respecting image aspect
241 ctrl-m toggle maxpect-always mode 261 ctrl-m toggle maxpect-always mode
242 u uncrop 262 u uncrop
243 r set scaling mode to 'nearest' (fastest) 263 r set scaling mode to 'nearest' (fastest)
244 s set scaling mode to 'bilinear' (default) 264 s set scaling mode to 'bilinear' (default)
245 shift-s set scaling mode to 'hyper' (slowest) 265 shift-s set scaling mode to 'hyper' (slowest)
246 t rotate clockwise 90° 266 t rotate clockwise 90°
247 T rotate counterclockwise° 267 T rotate counterclockwise°
248 ctrl-v open a new visual schnauzer window for the current dir 268 ctrl-v open a new visual schnauzer window for the current dir
249 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image 269 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
250 ctrl-p fire up the print fialog 270 ctrl-p fire up the print fialog
251 escape cancel a crop action 271 escape cancel a crop action
252 272
253And when playing movies, these additional keys are active: 273And when playing movies, these additional keys are active:
254 274
255 left rewind by 10 seconds 275 left rewind by 10 seconds
256 right forward by 10 seconds 276 right forward by 10 seconds
257 down rewind by 60 seconds 277 down rewind by 60 seconds
258 up forward by 60 seconds 278 up forward by 60 seconds
259 pg_up rewind by 600 seconds 279 pg_up rewind by 600 seconds
260 pg_down forward by 600 seconds 280 pg_down forward by 600 seconds
261 o toggle on-screen display 281 o toggle on-screen display
262 p pause/unpause 282 p pause/unpause
263 escape stop playing 283 escape stop playing
264 9 turn volume down 284 9 turn volume down
265 0 turn volume up 285 0 turn volume up
266 286
267Any other keys will be sent to the default schnauzer window, which can be 287Any other keys will be sent to the default schnauzer window, which can be
268toggled on and off by right-clicking into the image window. 288toggled on and off by right-clicking into the image window.
269 289
270Left-clicking into the image window will let you crop the image (usually 290Left-clicking into the image window will let you crop the image (usually
… …
273=head2 THE VISUAL SCHNAUZER 293=head2 THE VISUAL SCHNAUZER
274 294
275You can use the following keys in the schnauzer window: 295You can use the following keys in the schnauzer window:
276 296
277 ctrl-space, 297 ctrl-space,
278 space move to and display next image 298 space move to and display next image
279 ctrl-backspace, 299 ctrl-backspace,
280 backspace move to and display previous image 300 backspace move to and display previous image
281 ctrl-return, 301 ctrl-return,
282 return display selected picture, or enter directory 302 return display selected picture, or enter directory
283 303
284 cursor keys move selection 304 cursor keys move selection
285 page-up move one page up 305 page-up move one page up
286 page-down move one page down 306 page-down move one page down
287 home move to first file 307 home move to first file
288 end move to last file 308 end move to last file
289 309
290 ctrl-a select all files 310 ctrl-a select all files
311 ctrl-shift-a select all files currently displayed in the schnauzer window
291 ctrl-d delete selected files WITHOUT ASKING AGAIN 312 ctrl-d delete selected files WITHOUT ASKING AGAIN
292 ctrl-g force generation of thumbnais for the selected files 313 ctrl-g force generation of thumbnais for the selected files
293 ctrl-s rescan current direcory or files updates/deletes etc. 314 ctrl-s rescan current direcory or files updates/deletes etc.
294 ctrl-u update selected (or all) icons if neccessary 315 ctrl-u update selected (or all) icons if neccessary
295 ctrl-l don't use, will become a plug-in eventually 316 ctrl-l don't use, will become a plug-in eventually
317
318 ^ go to parent directory (caret).
296 319
297 0-9, 320 0-9,
298 a-z find the first filename beginning with this letter 321 a-z find the first filename beginning with this letter
299 322
300Right-clicking into the schnauzer window displays a pop-up menu with 323Right-clicking into the schnauzer window displays a pop-up menu with
301additional actions. 324additional actions.
302 325
303=head1 FILES 326=head1 FILES
… …
333 356
334=back 357=back
335 358
336=head1 SECURITY CONSIDERATIONS 359=head1 SECURITY CONSIDERATIONS
337 360
338CV uses Pixbuf to load images. Pixbuf is not considered safe for this 361CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
339purpose, though (from the gtk-2.2 release notes): 362this purpose, though (from the gtk-2.2 release notes):
340 363
341"While efforts have been made to make gdk-pixbuf robust against invalid 364"While efforts have been made to make gdk-pixbuf robust against invalid
342images, using gdk-pixbuf to load untrusted data is not recommended, due to 365images, using gdk-pixbuf to load untrusted data is not recommended, due to
343the likelyhood that there are additional problems where an invalid image 366the likelyhood that there are additional problems where an invalid image
344could cause gdk-pixbuf to crash or worse." 367could cause gdk-pixbuf to crash or worse."
… …
346=head1 BUGS/TODO 369=head1 BUGS/TODO
347 370
348 Lots of functionality is missing. 371 Lots of functionality is missing.
349 372
350 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with 373 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
351 names incompatible might utf-8 fail. 374 names incompatible with utf-8 might fail.
352 375
353 rotate on disk 376 rotate on disk
354 lots of ui issues 377 lots of ui issues
355 save(?) 378 save(?)
356 preferences 379 preferences
357 shift-cursor in schnauzer
358 380
359=head1 AUTHOR 381=head1 AUTHOR
360 382
361Marc Lehmann <cv@plan9.de>. 383Marc Lehmann <cv@plan9.de>.
362 384

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines