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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 1.51 by root, Sun Aug 14 02:25:44 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;
… …
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 });
94 109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
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 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
113 $schnauzer->set_paths (\@ARGV);
114 $schnauzer->show_all; 133 $schnauzer->show_all;
115 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 134 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
116} else { 135} else {
117 $schnauzer->set_dir (File::Spec->curdir); 136 $schnauzer->set_dir (File::Spec->curdir);
118 $mainwin->show_all; 137 $mainwin->show_all;
119 $viewer->show_all;
120} 138}
121 139
122$viewer->show_all; 140$viewer->show_all;
123 141
124main Gtk2; 142main Gtk2;
125 143
126__DATA__ 144__DATA__
127 145
128=head1 NAME 146=head1 NAME
129 147
130cv - a fast gtk+ image viewer modeled after xv 148cv - a fast gtk+ image viewer loosely modeled after XV
131 149
132=head1 SYNOPSIS 150=head1 SYNOPSIS
133 151
134 cv [file...] 152 cv [file...]
135 153
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
136=head1 DESCRIPTION 225=head1 DESCRIPTION
137 226
138None yet.
139
140=head2 THE IMAGE WINDOW 227=head2 THE IMAGE WINDOW
141 228
142You can use the following keys in the image window: 229You can use the following keys in the image window:
143 230
144 q quit the program 231 q quit the program
145 < half the image size 232 < half the image size
146 > double the image size 233 > double the image size
147 , shrink the image by 10% 234 , shrink the image by 10%
148 . enlarge the image by 10% 235 . enlarge the image by 10%
149 n reset to normal size 236 n reset to normal size
150 m maximize to screensize 237 m maximize to screensize
151 M maxime to screensize, respecting image aspect 238 M maximize to screensize, respecting image aspect
152 ctrl-m toggle maxpect-always mode 239 ctrl-m toggle maxpect-always mode
153 u uncrop 240 u uncrop
154 r set scaling mode to 'nearest' (fastest) 241 r set scaling mode to 'nearest' (fastest)
155 s set scaling mode to 'bilinear' (default) 242 s set scaling mode to 'bilinear' (default)
156 S set scaling mode to 'hyper' (slowest) 243 shift-s set scaling mode to 'hyper' (slowest)
157 t rotate clockwise 90° 244 t rotate clockwise 90°
158 T rotate counterclockwise° 245 T rotate counterclockwise°
159 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
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. 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
162 250
163And when playing movies, these additional keys are active: 251And when playing movies, these additional keys are active:
164 252
165 left rewind by 10 seconds 253 left rewind by 10 seconds
166 right forward by 10 seconds 254 right forward by 10 seconds
167 down rewind by 60 seconds 255 down rewind by 60 seconds
168 up forward by 60 seconds 256 up forward by 60 seconds
169 pg_up rewind by 600 seconds 257 pg_up rewind by 600 seconds
170 pg_down forward by 600 seconds 258 pg_down forward by 600 seconds
171 o toggle on-screen display 259 o toggle on-screen display
172 p pause/unpause 260 p pause/unpause
173 escape stop playing 261 escape stop playing
174 9 turn volume down 262 9 turn volume down
175 0 turn volume up 263 0 turn volume up
176 264
177The 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.
178 267
179 space next image 268Left-clicking into the image window will let you crop the image (usually
180 backspace last image 269to zoom into large images that CV scales down).
181 270
182=head2 THE VISUAL SCHNAUZER 271=head2 THE VISUAL SCHNAUZER
183 272
184You can use the following keys in the schnauzer window: 273You can use the following keys in the schnauzer window:
185 274
275 ctrl-space,
186 space move to and display next image 276 space move to and display next image
277 ctrl-backspace,
187 backspace move to and display previous image 278 backspace move to and display previous image
279 ctrl-return,
188 return display selected picture 280 return display selected picture, or enter directory
189 281
190 cursor keys move selection 282 cursor keys move selection
191 page-up move one page up 283 page-up move one page up
192 page-down move one page down 284 page-down move one page down
193 home move to first file 285 home move to first file
194 end move to last file 286 end move to last file
195 287
288 ctrl-a select all files
289 ctrl-shift-a select all files currently displayed in the schnauzer window
196 ctrl-d delete selected files WITHOUT ASKING AGAIN 290 ctrl-d delete selected files WITHOUT ASKING AGAIN
197 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.
198 ctrl-u update selected (or all) icons if neccessary 293 ctrl-u update selected (or all) icons if neccessary
199 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 :).
200 314
201=head1 ENVIRONMENT 315=head1 ENVIRONMENT
202 316
203=over 4 317=over 4
204 318
319=item CV_EDITOR
320
321The program that gets executed when the user presses C<CTRL-e> in the
322Schnauzer or image window. The default is C<gimp>.
323
205=item CV_PRINT_DESTINATION 324=item CV_PRINT_DESTINATION
206 325
207The default (perl-style) destination to use in the print dialog. 326The default (perl-style) destination to use in the print dialog.
327
328=item CV_TRASHCAN
329
330When set, must point to a directory where all files that are deleted are
331moved to. If unset, files that are deleted are really being deleted.
208 332
209=back 333=back
210 334
211=head1 SECURITY CONSIDERATIONS 335=head1 SECURITY CONSIDERATIONS
212 336
… …
218the likelyhood that there are additional problems where an invalid image 342the likelyhood that there are additional problems where an invalid image
219could cause gdk-pixbuf to crash or worse." 343could cause gdk-pixbuf to crash or worse."
220 344
221=head1 BUGS/TODO 345=head1 BUGS/TODO
222 346
347 Lots of functionality is missing.
348
223 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
224 incompatible with utf-8 fails. 350 names incompatible might utf-8 fail.
225 351
226 rotate on disk 352 rotate on disk
227 print
228 lots of ui issues 353 lots of ui issues
229 save(?) 354 save(?)
230 preferences 355 preferences
231 ctrl-u in schnauzer
232 shift-cursor in schnauzer 356 shift-cursor in schnauzer
233 357
234=head1 AUTHOR 358=head1 AUTHOR
235 359
236Marc Lehmann <cv@plan9.de>. 360Marc Lehmann <cv@plan9.de>.

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