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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 1.47 by root, Wed Jul 20 09:06:37 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
6use Gtk2::CV::ImageWindow; 9use Gtk2::CV::ImageWindow;
… …
9use Gtk2::CV; 12use Gtk2::CV;
10 13
11Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); 14Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
12 15
13use File::Spec; 16use File::Spec;
17
18require Gtk2::CV::Plugin;
19require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
14 20
15my $mainwin; 21my $mainwin;
16my $viewer; 22my $viewer;
17my $schnauzer; 23my $schnauzer;
18my $info; 24my $info;
… …
30 -s $_[1]; 36 -s $_[1];
31 $info->set_label ($label); 37 $info->set_label ($label);
32 $viewer->load_image ($_[1]); 38 $viewer->load_image ($_[1]);
33 }); 39 });
34 40
41 Gtk2::CV::Plugin->call (new_schnauzer => $s);
42
35 $s; 43 $s;
36} 44}
37 45
38sub std_keys { 46sub std_keys {
39 my $key = $_[1]->keyval; 47 my $key = $_[1]->keyval;
… …
68 $h->load_string (do { local $/; <DATA> }); 76 $h->load_string (do { local $/; <DATA> });
69 } 77 }
70 78
71 $help->show_all; 79 $help->show_all;
72 } else { 80 } else {
73 #$mainwin->show_all; 81 return 0;
74 $schnauzer->handle_key ($key, $state);
75 } 82 }
76 83
77 1; 84 1
78} 85}
79 86
80{ 87{
81 $viewer = new Gtk2::CV::ImageWindow; 88 $viewer = new Gtk2::CV::ImageWindow;
82 89
83 $viewer->set_title ("CV: Image"); 90 $viewer->set_title ("CV: Image");
84 91
85 $viewer->signal_connect (key_press_event => \&std_keys); 92 $viewer->signal_connect (key_press_event => sub {
93 &std_keys
94 or $schnauzer->signal_emit (key_press_event => $_[1])
95 });
86 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 96 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
87 97
88 $viewer->signal_connect (button3_press_event => sub { 98 $viewer->signal_connect (button3_press_event => sub {
89 $mainwin->visible 99 $mainwin->visible
90 ? $mainwin->hide 100 ? $mainwin->hide
91 : $mainwin->show_all; 101 : $mainwin->show_all;
92 1; 102 1;
93 }); 103 });
94 104
105 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
106
95 $schnauzer = new_schnauzer; 107 $schnauzer = new_schnauzer;
96 108
97 $mainwin = new Gtk2::Window; 109 $mainwin = new Gtk2::Window;
98 $mainwin->set_title ("CV"); 110 $mainwin->set_title ("CV");
99 $mainwin->add (my $vbox = new Gtk2::VBox); 111 $mainwin->add (my $vbox = new Gtk2::VBox);
100 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 112 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });
101 113
102 $vbox->add ($schnauzer); 114 $vbox->add ($schnauzer);
103 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 115 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
104 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 116 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
105 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 117 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
106 $hbox->pack_start (($info = new Gtk2::Label), 1, 1, 0); 118 $hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
119 $labelwindow->add ($info = new Gtk2::Label);
120 $labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
121 $info->set (selectable => 1, xalign => 0, justify => "left");
107 122
108 $schnauzer->set_geometry_hints; 123 $schnauzer->set_geometry_hints;
109} 124}
110 125
111if (@ARGV) { 126if (@ARGV) {
112 $_ = Glib::filename_to_unicode $_ for @ARGV; 127 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
113 $schnauzer->set_paths (\@ARGV);
114 $schnauzer->show_all; 128 $schnauzer->show_all;
129$viewer->show_all;
115 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 130 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
116} else { 131} else {
117 $schnauzer->set_dir (File::Spec->curdir); 132 $schnauzer->set_dir (File::Spec->curdir);
118 $mainwin->show_all; 133 $mainwin->show_all;
119 $viewer->show_all; 134 $viewer->show_all;
… …
125 140
126__DATA__ 141__DATA__
127 142
128=head1 NAME 143=head1 NAME
129 144
130cv - a fast gtk+ image viewer modeled after xv 145cv - a fast gtk+ image viewer loosely modeled after XV
131 146
132=head1 SYNOPSIS 147=head1 SYNOPSIS
133 148
134 cv [file...] 149 cv [file...]
135 150
151=head1 FEATURES
152
153CV is supposed to work similar to the venerable XV image viewer, just
154faster. Why faster?
155
156=over 4
157
158=item * optimized directory scanning algorithm
159
160The directory scanning in CV plays some tricks that - on most modern
161filesystems - makes it possible to detect filetypes faster than stat()'ing
162every file. This makes CV suitable for directories with lots of files
163(10000+).
164
165This algorithm is quite unprecise - it doesn't make a difference between
166files, device nodes, symlinks and the like, and filetype detection is done
167using the file extension only.
168
169=item * use of asynchronous I/O
170
171CV tries to use asynchronous I/O whereever it makes sense, for example
172while scanning directories, waiting for stat data or unlinking files. This
173usually decreases scanning times for large directories a bit (especially
174on RAID devices and over NFS).
175
176=item * fast image loading
177
178The time span between the user issuing a command and displaying the new
179image should be as small as possible. CV uses optimized (especially
180for JPEG) loading functions and sacrifices some quality (e.g no gamma
181correction) to achieve this speed.
182
183=item * fast thumbnail creation
184
185Thumbnail creation is crucial for me, so it's better be fast. Thumbnail
186creation for JPEGs has been specially optimized.
187
188=item * minimum optical clutter
189
190CV has no menus or other user interface elements that take up a lot of
191screen space. The schnauzer windows can also be somewhat crowded.
192
193The point of an image viewer is viewing images, not a nice GUI. This is
194similar to XV's behaviour.
195
196=item * efficient (and hard to learn) user interface
197
198CV uses key combinations. A lot. If you are an experienced XV user, you
199will find most of these keys familiar. If not, CV might be hard to use at
200first, but will be an efficient tool later.
201
202=item * i18n'ed filename handling throughout
203
204As long as glib can recognize your filename encoding (either UTF-8 or
205locale-specific, depending on your settings) and you have the relevant
206fonts, CV will display your filenames correctly.
207
208=item * extensible through plug-ins
209
210I have weird plug-ins that access remote databases to find a
211directory. This is not likely to be of any use to other people. Likewise,
212others might have weird requirements I cannot dream of.
213
214=item * filename clustering
215
216Among the standard plug-ins is a filename clustering plug-in, that (in
217case of tens of thousands images in one directory) might be able to
218cluster similar names together.
219
220=back
221
136=head1 DESCRIPTION 222=head1 DESCRIPTION
137
138None yet.
139 223
140=head2 THE IMAGE WINDOW 224=head2 THE IMAGE WINDOW
141 225
142You can use the following keys in the image window: 226You can use the following keys in the image window:
143 227
… …
146 > double the image size 230 > double the image size
147 , shrink the image by 10% 231 , shrink the image by 10%
148 . enlarge the image by 10% 232 . enlarge the image by 10%
149 n reset to normal size 233 n reset to normal size
150 m maximize to screensize 234 m maximize to screensize
151 M maxime to screensize, respecting image aspect 235 M maximize to screensize, respecting image aspect
152 ctrl-m toggle maxpect-always mode 236 ctrl-m toggle maxpect-always mode
153 u uncrop 237 u uncrop
154 r set scaling mode to 'nearest' (fastest) 238 r set scaling mode to 'nearest' (fastest)
155 s set scaling mode to 'bilinear' (default) 239 s set scaling mode to 'bilinear' (default)
156 S set scaling mode to 'hyper' (slowest) 240 shift-s set scaling mode to 'hyper' (slowest)
157 t rotate clockwise 90° 241 t rotate clockwise 90°
158 T rotate counterclockwise° 242 T rotate counterclockwise°
159 ctrl-v open a new visual schnauzer window for the current dir 243 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. 244 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
245 ctrl-p fire up the print fialog
246 escape cancel a crop action
162 247
163And when playing movies, these additional keys are active: 248And when playing movies, these additional keys are active:
164 249
165 left rewind by 10 seconds 250 left rewind by 10 seconds
166 right forward by 10 seconds 251 right forward by 10 seconds
… …
172 p pause/unpause 257 p pause/unpause
173 escape stop playing 258 escape stop playing
174 9 turn volume down 259 9 turn volume down
175 0 turn volume up 260 0 turn volume up
176 261
177The following keys are redirected to the default visual schnauzer window: 262Any other keys will be sent to the default schnauzer window, which can be
263toggled on and off by right-clicking into the image window.
178 264
179 space next image 265Left-clicking into the image window will let you crop the image (usually
180 backspace last image 266to zoom into large images that CV scales down).
181 267
182=head2 THE VISUAL SCHNAUZER 268=head2 THE VISUAL SCHNAUZER
183 269
184You can use the following keys in the schnauzer window: 270You can use the following keys in the schnauzer window:
185 271
272 ctrl-space,
186 space move to and display next image 273 space move to and display next image
274 ctrl-backspace,
187 backspace move to and display previous image 275 backspace move to and display previous image
276 ctrl-return,
188 return display selected picture 277 return display selected picture, or enter directory
189 278
190 cursor keys move selection 279 cursor keys move selection
191 page-up move one page up 280 page-up move one page up
192 page-down move one page down 281 page-down move one page down
193 home move to first file 282 home move to first file
194 end move to last file 283 end move to last file
195 284
285 ctrl-a select all files
196 ctrl-d delete selected files WITHOUT ASKING AGAIN 286 ctrl-d delete selected files WITHOUT ASKING AGAIN
197 ctrl-g generate icons for the selected files 287 ctrl-g force generation of thumbnais for the selected files
288 ctrl-s rescan current direcory or files updates/deletes etc.
198 ctrl-u update selected (or all) icons if neccessary 289 ctrl-u update selected (or all) icons if neccessary
199 ctrl-a select all files 290 ctrl-l don't use, will become a plug-in eventually
291
292 0-9,
293 a-z find the first filename beginning with this letter
294
295Right-clicking into the schnauzer window displays a pop-up menu with
296additional actions.
297
298=head1 FILES
299
300When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
301it were a perl script. in that, you will mostly load plug-ins.
302
303Example:
304
305 system "fping -q -t 10 ether"
306 or require "/fs/cv/cvplugin.pl";
307
308This will load a plug-in, but only if the machine I<ether> is reachable
309(supposedly the plug-in is networked in some way :).
200 310
201=head1 ENVIRONMENT 311=head1 ENVIRONMENT
202 312
203=over 4 313=over 4
204 314
315=item CV_EDITOR
316
317The program that gets executed when the user presses C<CTRL-e> in the
318Schnauzer or image window. The default is C<gimp>.
319
205=item CV_PRINT_DESTINATION 320=item CV_PRINT_DESTINATION
206 321
207The default (perl-style) destination to use in the print dialog. 322The default (perl-style) destination to use in the print dialog.
323
324=item CV_TRASHCAN
325
326When set, must point to a directory where all files that are deleted are
327moved to. If unset, files that are deleted are really being deleted.
208 328
209=back 329=back
210 330
211=head1 SECURITY CONSIDERATIONS 331=head1 SECURITY CONSIDERATIONS
212 332
… …
218the likelyhood that there are additional problems where an invalid image 338the likelyhood that there are additional problems where an invalid image
219could cause gdk-pixbuf to crash or worse." 339could cause gdk-pixbuf to crash or worse."
220 340
221=head1 BUGS/TODO 341=head1 BUGS/TODO
222 342
343 Lots of functionality is missing.
344
223 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 345 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
224 incompatible with utf-8 fails. 346 names incompatible might utf-8 fail.
225 347
226 rotate on disk 348 rotate on disk
227 print
228 lots of ui issues 349 lots of ui issues
229 save(?) 350 save(?)
230 preferences 351 preferences
231 ctrl-u in schnauzer
232 shift-cursor in schnauzer 352 shift-cursor in schnauzer
233 353
234=head1 AUTHOR 354=head1 AUTHOR
235 355
236Marc Lehmann <cv@plan9.de>. 356Marc Lehmann <cv@plan9.de>.

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