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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 1.52 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 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
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 47
51 $s; 48 $s;
52} 49}
53 50
54sub std_keys { 51sub std_keys {
… …
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 });
110 109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
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 * 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
151=head1 DESCRIPTION 227=head1 DESCRIPTION
152 228
153None yet.
154
155=head2 THE IMAGE WINDOW 229=head2 THE IMAGE WINDOW
156 230
157You can use the following keys in the image window: 231You can use the following keys in the image window:
158 232
159 q quit the program 233 q quit the program
160 < half the image size 234 < half the image size
161 > double the image size 235 > double the image size
162 , shrink the image by 10% 236 , shrink the image by 10%
163 . enlarge the image by 10% 237 . enlarge the image by 10%
164 n reset to normal size 238 n reset to normal size
165 m maximize to screensize 239 m maximize to screensize
166 M maxime to screensize, respecting image aspect 240 M maximize to screensize, respecting image aspect
167 ctrl-m toggle maxpect-always mode 241 ctrl-m toggle maxpect-always mode
168 u uncrop 242 u uncrop
169 r set scaling mode to 'nearest' (fastest) 243 r set scaling mode to 'nearest' (fastest)
170 s set scaling mode to 'bilinear' (default) 244 s set scaling mode to 'bilinear' (default)
171 S set scaling mode to 'hyper' (slowest) 245 shift-s set scaling mode to 'hyper' (slowest)
172 t rotate clockwise 90° 246 t rotate clockwise 90°
173 T rotate counterclockwise° 247 T rotate counterclockwise°
174 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
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. 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
177 252
178And when playing movies, these additional keys are active: 253And when playing movies, these additional keys are active:
179 254
180 left rewind by 10 seconds 255 left rewind by 10 seconds
181 right forward by 10 seconds 256 right forward by 10 seconds
182 down rewind by 60 seconds 257 down rewind by 60 seconds
183 up forward by 60 seconds 258 up forward by 60 seconds
184 pg_up rewind by 600 seconds 259 pg_up rewind by 600 seconds
185 pg_down forward by 600 seconds 260 pg_down forward by 600 seconds
186 o toggle on-screen display 261 o toggle on-screen display
187 p pause/unpause 262 p pause/unpause
188 escape stop playing 263 escape stop playing
189 9 turn volume down 264 9 turn volume down
190 0 turn volume up 265 0 turn volume up
191 266
192The 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.
193 269
194 space next image 270Left-clicking into the image window will let you crop the image (usually
195 backspace last image 271to zoom into large images that CV scales down).
196 272
197=head2 THE VISUAL SCHNAUZER 273=head2 THE VISUAL SCHNAUZER
198 274
199You can use the following keys in the schnauzer window: 275You can use the following keys in the schnauzer window:
200 276
277 ctrl-space,
201 space move to and display next image 278 space move to and display next image
279 ctrl-backspace,
202 backspace move to and display previous image 280 backspace move to and display previous image
281 ctrl-return,
203 return display selected picture 282 return display selected picture, or enter directory
204 283
205 cursor keys move selection 284 cursor keys move selection
206 page-up move one page up 285 page-up move one page up
207 page-down move one page down 286 page-down move one page down
208 home move to first file 287 home move to first file
209 end move to last file 288 end move to last file
210 289
290 ctrl-a select all files
291 ctrl-shift-a select all files currently displayed in the schnauzer window
211 ctrl-d delete selected files WITHOUT ASKING AGAIN 292 ctrl-d delete selected files WITHOUT ASKING AGAIN
212 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.
213 ctrl-u update selected (or all) icons if neccessary 295 ctrl-u update selected (or all) icons if neccessary
214 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 :).
215 316
216=head1 ENVIRONMENT 317=head1 ENVIRONMENT
217 318
218=over 4 319=over 4
219 320
321=item CV_EDITOR
322
323The program that gets executed when the user presses C<CTRL-e> in the
324Schnauzer or image window. The default is C<gimp>.
325
220=item CV_PRINT_DESTINATION 326=item CV_PRINT_DESTINATION
221 327
222The default (perl-style) destination to use in the print dialog. 328The default (perl-style) destination to use in the print dialog.
329
330=item CV_TRASHCAN
331
332When set, must point to a directory where all files that are deleted are
333moved to. If unset, files that are deleted are really being deleted.
223 334
224=back 335=back
225 336
226=head1 SECURITY CONSIDERATIONS 337=head1 SECURITY CONSIDERATIONS
227 338
… …
233the likelyhood that there are additional problems where an invalid image 344the likelyhood that there are additional problems where an invalid image
234could cause gdk-pixbuf to crash or worse." 345could cause gdk-pixbuf to crash or worse."
235 346
236=head1 BUGS/TODO 347=head1 BUGS/TODO
237 348
349 Lots of functionality is missing.
350
238 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
239 incompatible with utf-8 fails. 352 names incompatible might utf-8 fail.
240 353
241 rotate on disk 354 rotate on disk
242 print
243 lots of ui issues 355 lots of ui issues
244 save(?) 356 save(?)
245 preferences 357 preferences
246 ctrl-u in schnauzer
247 shift-cursor in schnauzer 358 shift-cursor in schnauzer
248 359
249=head1 AUTHOR 360=head1 AUTHOR
250 361
251Marc Lehmann <cv@plan9.de>. 362Marc Lehmann <cv@plan9.de>.

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