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Comparing CV/bin/cv (file contents):
Revision 1.35 by root, Tue Feb 8 02:54:59 2005 UTC vs.
Revision 1.53 by root, Tue Aug 16 02:46:58 2005 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2
3use Cwd ();
4use Encode ();
2 5
3use Gtk2 -init; 6use Gtk2 -init;
4use Gtk2::Gdk::Keysyms; 7use Gtk2::Gdk::Keysyms;
5 8
9use Gtk2::CV;
10
6use Gtk2::CV::ImageWindow; 11use Gtk2::CV::ImageWindow;
7use Gtk2::CV::Schnauzer; 12use Gtk2::CV::Schnauzer;
8 13
9use 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;
10 21
11Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); 22Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
12 23
13use File::Spec; 24use File::Spec;
14 25
… …
30 -s $_[1]; 41 -s $_[1];
31 $info->set_label ($label); 42 $info->set_label ($label);
32 $viewer->load_image ($_[1]); 43 $viewer->load_image ($_[1]);
33 }); 44 });
34 45
46 Gtk2::CV::Plugin->call (new_schnauzer => $s);
47
35 $s; 48 $s
36} 49}
37 50
38sub std_keys { 51sub std_keys {
39 my $key = $_[1]->keyval; 52 my $key = $_[1]->keyval;
40 my $state = $_[1]->state; 53 my $state = $_[1]->state;
… …
68 $h->load_string (do { local $/; <DATA> }); 81 $h->load_string (do { local $/; <DATA> });
69 } 82 }
70 83
71 $help->show_all; 84 $help->show_all;
72 } else { 85 } else {
73 #$mainwin->show_all; 86 return 0;
74 $schnauzer->handle_key ($key, $state);
75 } 87 }
76 88
77 1; 89 1
78} 90}
79 91
80{ 92{
81 $viewer = new Gtk2::CV::ImageWindow; 93 $viewer = new Gtk2::CV::ImageWindow;
82 94
83 $viewer->set_title ("CV: Image"); 95 $viewer->set_title ("CV: Image");
84 96
85 $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 });
86 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
87 102
88 $viewer->signal_connect (button3_press_event => sub { 103 $viewer->signal_connect (button3_press_event => sub {
89 $mainwin->visible 104 $mainwin->visible
90 ? $mainwin->hide 105 ? $mainwin->hide
91 : $mainwin->show_all; 106 : $mainwin->show_all;
92 1; 107 1
93 }); 108 });
109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
94 111
95 $schnauzer = new_schnauzer; 112 $schnauzer = new_schnauzer;
96 113
97 $mainwin = new Gtk2::Window; 114 $mainwin = new Gtk2::Window;
98 $mainwin->set_title ("CV"); 115 $mainwin->set_title ("CV");
99 $mainwin->add (my $vbox = new Gtk2::VBox); 116 $mainwin->add (my $vbox = new Gtk2::VBox);
100 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
101 118
102 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
103 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
104 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
105 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
106 $hbox->pack_start (($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");
107 127
108 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
109} 129}
110 130
111if (@ARGV) { 131if (@ARGV) {
112 $_ = Glib::filename_to_unicode $_ for @ARGV; 132 @ARGV == 1 && -d $ARGV[0]
113 $schnauzer->set_paths (\@ARGV); 133 ? $schnauzer->set_dir (Glib::filename_to_unicode shift)
134 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
114 $schnauzer->show_all; 135 $schnauzer->show_all;
115 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 136 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
116} else { 137} else {
117 $schnauzer->set_dir (File::Spec->curdir); 138 $schnauzer->set_dir (File::Spec->curdir);
118 $mainwin->show_all; 139 $mainwin->show_all;
119 $viewer->show_all;
120} 140}
121 141
122$viewer->show_all; 142$viewer->show_all;
123 143
124main Gtk2; 144main Gtk2;
125 145
126__DATA__ 146__DATA__
127 147
128=head1 NAME 148=head1 NAME
129 149
130cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
131 151
132=head1 SYNOPSIS 152=head1 SYNOPSIS
133 153
134 cv [file...] 154 cv [file...]
135 155
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 * queuing for all time-consuming background tasks
175
176All tasks, such as unlinking files or generating thumbnails, that can be
177done in the background will be done so - no waiting required, even when
178changing directories.
179
180=item * use of asynchronous I/O
181
182CV tries to use asynchronous I/O whereever it makes sense, for example
183while scanning directories, waiting for stat data, unlinking files or
184generating thumbnails. This usually decreases scanning times for large
185directories a bit (especially on RAID devices and over NFS) and makes CV
186much more interactive.
187
188=item * fast image loading
189
190The time span between the user issuing a command and displaying the new
191image should be as small as possible. CV uses optimized (especially
192for JPEG) loading functions and sacrifices some quality (e.g no gamma
193correction) to achieve this speed.
194
195=item * fast thumbnail creation
196
197Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
198creation for JPEGs has been specially optimized.
199
200=item * minimum optical clutter
201
202CV has no menus or other user interface elements that take up a lot of
203screen space. The schnauzer windows can also be somewhat crowded.
204
205The point of an image viewer is viewing images, not a nice GUI. This is
206similar to XV's behaviour.
207
208=item * efficient (and hard to learn) user interface
209
210CV uses key combinations. A lot. If you are an experienced XV user, you
211will find most of these keys familiar. If not, CV might be hard to use at
212first, but will be an efficient tool later.
213
214=item * i18n'ed filename handling throughout
215
216As long as glib can recognize your filename encoding (either UTF-8 or
217locale-specific, depending on your settings) and you have the relevant
218fonts, CV will display your filenames correctly.
219
220=item * extensible through plug-ins
221
222I have weird plug-ins that access remote databases to find a
223directory. This is not likely to be of any use to other people. Likewise,
224others might have weird requirements I cannot dream of.
225
226=item * filename clustering
227
228Among the standard plug-ins is a filename clustering plug-in, that (in
229case of tens of thousands images in one directory) might be able to
230cluster similar names together.
231
232=back
233
136=head1 DESCRIPTION 234=head1 DESCRIPTION
137 235
138None yet.
139
140=head2 THE IMAGE WINDOW 236=head2 THE IMAGE WINDOW
141 237
142You can use the following keys in the image window: 238You can use the following keys in the image window:
143 239
144 q quit the program 240 q quit the program
145 < half the image size 241 < half the image size
146 > double the image size 242 > double the image size
147 , shrink the image by 10% 243 , shrink the image by 10%
148 . enlarge the image by 10% 244 . enlarge the image by 10%
149 n reset to normal size 245 n reset to normal size
150 m maximize to screensize 246 m maximize to screensize
151 M maxime to screensize, respecting image aspect 247 M maximize to screensize, respecting image aspect
152 ctrl-m toggle maxpect-always mode 248 ctrl-m toggle maxpect-always mode
153 u uncrop 249 u uncrop
154 r set scaling mode to 'nearest' (fastest) 250 r set scaling mode to 'nearest' (fastest)
155 s set scaling mode to 'bilinear' (default) 251 s set scaling mode to 'bilinear' (default)
156 S set scaling mode to 'hyper' (slowest) 252 shift-s set scaling mode to 'hyper' (slowest)
157 t rotate clockwise 90° 253 t rotate clockwise 90°
158 T rotate counterclockwise° 254 T rotate counterclockwise°
159 ctrl-v open a new visual schnauzer window for the current dir 255 ctrl-v open a new visual schnauzer window for the current dir
160 ctrl-s rescan visual schnauzer files for updates/deletes etc.
161 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image. 256 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
257 ctrl-p fire up the print fialog
258 escape cancel a crop action
162 259
163And when playing movies, these additional keys are active: 260And when playing movies, these additional keys are active:
164 261
165 left rewind by 10 seconds 262 left rewind by 10 seconds
166 right forward by 10 seconds 263 right forward by 10 seconds
167 down rewind by 60 seconds 264 down rewind by 60 seconds
168 up forward by 60 seconds 265 up forward by 60 seconds
169 pg_up rewind by 600 seconds 266 pg_up rewind by 600 seconds
170 pg_down forward by 600 seconds 267 pg_down forward by 600 seconds
171 o toggle on-screen display 268 o toggle on-screen display
172 p pause/unpause 269 p pause/unpause
173 escape stop playing 270 escape stop playing
174 9 turn volume down 271 9 turn volume down
175 0 turn volume up 272 0 turn volume up
176 273
177The following keys are redirected to the default visual schnauzer window: 274Any other keys will be sent to the default schnauzer window, which can be
275toggled on and off by right-clicking into the image window.
178 276
179 space next image 277Left-clicking into the image window will let you crop the image (usually
180 backspace last image 278to zoom into large images that CV scales down).
181 279
182=head2 THE VISUAL SCHNAUZER 280=head2 THE VISUAL SCHNAUZER
183 281
184You can use the following keys in the schnauzer window: 282You can use the following keys in the schnauzer window:
185 283
284 ctrl-space,
186 space move to and display next image 285 space move to and display next image
286 ctrl-backspace,
187 backspace move to and display previous image 287 backspace move to and display previous image
288 ctrl-return,
188 return display selected picture 289 return display selected picture, or enter directory
189 290
190 cursor keys move selection 291 cursor keys move selection
191 page-up move one page up 292 page-up move one page up
192 page-down move one page down 293 page-down move one page down
193 home move to first file 294 home move to first file
194 end move to last file 295 end move to last file
195 296
297 ctrl-a select all files
298 ctrl-shift-a select all files currently displayed in the schnauzer window
196 ctrl-d delete selected files WITHOUT ASKING AGAIN 299 ctrl-d delete selected files WITHOUT ASKING AGAIN
197 ctrl-g generate icons for the selected files 300 ctrl-g force generation of thumbnais for the selected files
301 ctrl-s rescan current direcory or files updates/deletes etc.
198 ctrl-u update selected (or all) icons if neccessary 302 ctrl-u update selected (or all) icons if neccessary
199 ctrl-a select all files 303 ctrl-l don't use, will become a plug-in eventually
304
305 0-9,
306 a-z find the first filename beginning with this letter
307
308Right-clicking into the schnauzer window displays a pop-up menu with
309additional actions.
310
311=head1 FILES
312
313When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
314it were a perl script. in that, you will mostly load plug-ins.
315
316Example:
317
318 system "fping -q -t 10 ether"
319 or require "/fs/cv/cvplugin.pl";
320
321This will load a plug-in, but only if the machine I<ether> is reachable
322(supposedly the plug-in is networked in some way :).
200 323
201=head1 ENVIRONMENT 324=head1 ENVIRONMENT
202 325
203=over 4 326=over 4
204 327
328=item CV_EDITOR
329
330The program that gets executed when the user presses C<CTRL-e> in the
331Schnauzer or image window. The default is C<gimp>.
332
205=item CV_PRINT_DESTINATION 333=item CV_PRINT_DESTINATION
206 334
207The default (perl-style) destination to use in the print dialog. 335The default (perl-style) destination to use in the print dialog.
336
337=item CV_TRASHCAN
338
339When set, must point to a directory where all files that are deleted are
340moved to. If unset, files that are deleted are really being deleted.
208 341
209=back 342=back
210 343
211=head1 SECURITY CONSIDERATIONS 344=head1 SECURITY CONSIDERATIONS
212 345
… …
218the likelyhood that there are additional problems where an invalid image 351the likelyhood that there are additional problems where an invalid image
219could cause gdk-pixbuf to crash or worse." 352could cause gdk-pixbuf to crash or worse."
220 353
221=head1 BUGS/TODO 354=head1 BUGS/TODO
222 355
356 Lots of functionality is missing.
357
223 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 358 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
224 incompatible with utf-8 fails. 359 names incompatible might utf-8 fail.
225 360
226 rotate on disk 361 rotate on disk
227 print
228 lots of ui issues 362 lots of ui issues
229 save(?) 363 save(?)
230 preferences 364 preferences
231 ctrl-u in schnauzer
232 shift-cursor in schnauzer 365 shift-cursor in schnauzer
233 366
234=head1 AUTHOR 367=head1 AUTHOR
235 368
236Marc Lehmann <cv@plan9.de>. 369Marc Lehmann <cv@plan9.de>.

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