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Comparing CV/bin/cv (file contents):
Revision 1.25 by root, Wed Nov 12 19:36:06 2003 UTC vs.
Revision 1.50 by root, Sat Aug 13 15:19:10 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 = $_[1]->keyval;
… …
43 56
44 if ($key == $Gtk2::Gdk::Keysyms{q}) { 57 if ($key == $Gtk2::Gdk::Keysyms{q}) {
45 main_quit Gtk2; 58 main_quit Gtk2;
46 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { 59 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
47 my $w = new Gtk2::Window; 60 my $w = new Gtk2::Window;
61
62 $w->set_title ("CV: Schnauzer");
48 $w->add (my $s = new_schnauzer); 63 $w->add (my $s = new_schnauzer);
49 $s->set_dir (File::Spec->curdir); 64 $s->set_dir (File::Spec->curdir);
50 $s->set_geometry_hints; 65 $s->set_geometry_hints;
51 $w->show_all; 66 $w->show_all;
52 67
53 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) { 68 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
54 unless ($help) { 69 unless ($help) {
55 require Gtk2::PodViewer; 70 require Gtk2::PodViewer;
56 71
57 $help = new Gtk2::Window; 72 $help = new Gtk2::Window;
58 $help->set_title ("CV Help"); 73 $help->set_title ("CV: Help");
59 $help->set_default_size (500, 300); 74 $help->set_default_size (500, 300);
60 $help->signal_connect (delete_event => sub { $help->hide; 1 }); 75 $help->signal_connect (delete_event => sub { $help->hide; 1 });
61 76
62 $help->add (my $sw = new Gtk2::ScrolledWindow); 77 $help->add (my $sw = new Gtk2::ScrolledWindow);
63 $sw->add (my $h = new Gtk2::PodViewer); 78 $sw->add (my $h = new Gtk2::PodViewer);
… …
66 $h->load_string (do { local $/; <DATA> }); 81 $h->load_string (do { local $/; <DATA> });
67 } 82 }
68 83
69 $help->show_all; 84 $help->show_all;
70 } else { 85 } else {
71 #$mainwin->show_all; 86 return 0;
72 $schnauzer->handle_key ($key, $state);
73 } 87 }
74 88
75 1; 89 1
76} 90}
77 91
78{ 92{
79 $viewer = new Gtk2::CV::ImageWindow; 93 $viewer = new Gtk2::CV::ImageWindow;
80 94
81 $viewer->set_title ("CV: Image"); 95 $viewer->set_title ("CV: Image");
82 96
83 $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 });
84 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 101 $viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
85 102
86 $viewer->signal_connect (button3_press_event => sub { 103 $viewer->signal_connect (button3_press_event => sub {
87 $mainwin->visible 104 $mainwin->visible
88 ? $mainwin->hide 105 ? $mainwin->hide
89 : $mainwin->show_all; 106 : $mainwin->show_all;
90 1; 107 1;
91 }); 108 });
92 109
110 Gtk2::CV::Plugin->call (new_imagewindow => $viewer);
111
93 $schnauzer = new_schnauzer; 112 $schnauzer = new_schnauzer;
94 113
95 $mainwin = new Gtk2::Window; 114 $mainwin = new Gtk2::Window;
96 $mainwin->set_title ("CV"); 115 $mainwin->set_title ("CV");
97 $mainwin->add (my $vbox = new Gtk2::VBox); 116 $mainwin->add (my $vbox = new Gtk2::VBox);
98 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); 117 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });
99 118
100 $vbox->add ($schnauzer); 119 $vbox->add ($schnauzer);
101 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); 120 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
102 $frame->add (my $hbox = new Gtk2::HBox 0, 0); 121 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
103 $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); 122 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
104 $hbox->pack_start (($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");
105 127
106 $schnauzer->set_geometry_hints; 128 $schnauzer->set_geometry_hints;
107} 129}
108 130
109if (@ARGV) { 131if (@ARGV) {
110 $schnauzer->set_paths (\@ARGV); 132 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
133 $schnauzer->show_all;
111 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 134 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
135 $viewer->show_all;
112} else { 136} else {
113 $schnauzer->set_dir (File::Spec->curdir); 137 $schnauzer->set_dir (File::Spec->curdir);
114 $mainwin->show_all; 138 $mainwin->show_all;
139 $viewer->show_all;
115} 140}
116 141
117$viewer->show_all; 142$viewer->show_all;
118 143
119main Gtk2; 144main Gtk2;
120 145
121__DATA__ 146__DATA__
122 147
123=head1 NAME 148=head1 NAME
124 149
125cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
126 151
127=head1 SYNOPSIS 152=head1 SYNOPSIS
128 153
129 cv [file...] 154 cv [file...]
130 155
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
131=head1 DESCRIPTION 227=head1 DESCRIPTION
132 228
133None yet.
134
135=head2 THE IMAGE WINDOW 229=head2 THE IMAGE WINDOW
136 230
137You can use the following keys in the image window: 231You can use the following keys in the image window:
138 232
139 q quit the program 233 q quit the program
140 < half the image size 234 < half the image size
141 > double the image size 235 > double the image size
142 , shrink the image by 10% 236 , shrink the image by 10%
143 . enlarge the image by 10% 237 . enlarge the image by 10%
144 n reset to normal size 238 n reset to normal size
145 m maximize to screensize 239 m maximize to screensize
146 M maxime to screensize, respecting image aspect 240 M maximize to screensize, respecting image aspect
241 ctrl-m toggle maxpect-always mode
147 u uncrop 242 u uncrop
148 r set scaling mode to 'nearest' (fastest) 243 r set scaling mode to 'nearest' (fastest)
149 s set scaling mode to 'bilinear' (default) 244 s set scaling mode to 'bilinear' (default)
150 S set scaling mode to 'hyper' (slowest) 245 shift-s set scaling mode to 'hyper' (slowest)
151 t rotate clockwise 90° 246 t rotate clockwise 90°
152 T rotate counterclockwise° 247 T rotate counterclockwise°
153 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
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
154 252
155The following keys are redirected to the default visual schnauzer window: 253And when playing movies, these additional keys are active:
156 254
157 space next image 255 left rewind by 10 seconds
158 backspace last image 256 right forward by 10 seconds
257 down rewind by 60 seconds
258 up forward by 60 seconds
259 pg_up rewind by 600 seconds
260 pg_down forward by 600 seconds
261 o toggle on-screen display
262 p pause/unpause
263 escape stop playing
264 9 turn volume down
265 0 turn volume up
266
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.
269
270Left-clicking into the image window will let you crop the image (usually
271to zoom into large images that CV scales down).
159 272
160=head2 THE VISUAL SCHNAUZER 273=head2 THE VISUAL SCHNAUZER
161 274
162You can use the following keys in the schnauzer window: 275You can use the following keys in the schnauzer window:
163 276
277 ctrl-space,
164 space move to and display next image 278 space move to and display next image
279 ctrl-backspace,
165 backspace move to and display previous image 280 backspace move to and display previous image
281 ctrl-return,
166 return display selected picture 282 return display selected picture, or enter directory
167 283
168 cursor keys move selection 284 cursor keys move selection
169 page-up move one page up 285 page-up move one page up
170 page-down move one page down 286 page-down move one page down
171 home move to first file 287 home move to first file
172 end move to last file 288 end move to last file
173 289
290 ctrl-a select all files
291 ctrl-shift-a select all files currently displayed in the schnauzer window
174 ctrl-d delete selected files WITHOUT ASKING AGAIN 292 ctrl-d delete selected files WITHOUT ASKING AGAIN
175 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.
176 ctrl-u update selected (or all) icons if neccessary 295 ctrl-u update selected (or all) icons if neccessary
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 :).
316
317=head1 ENVIRONMENT
318
319=over 4
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
326=item CV_PRINT_DESTINATION
327
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.
334
335=back
177 336
178=head1 SECURITY CONSIDERATIONS 337=head1 SECURITY CONSIDERATIONS
179 338
180CV uses Pixbuf to load images. Pixbuf is not considered safe for this 339CV uses Pixbuf to load images. Pixbuf is not considered safe for this
181purpose, though (from the gtk-2.2 release notes): 340purpose, though (from the gtk-2.2 release notes):
… …
185the likelyhood that there are additional problems where an invalid image 344the likelyhood that there are additional problems where an invalid image
186could cause gdk-pixbuf to crash or worse." 345could cause gdk-pixbuf to crash or worse."
187 346
188=head1 BUGS/TODO 347=head1 BUGS/TODO
189 348
349 Lots of functionality is missing.
350
190 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
191 incompatible with utf-8 fails. 352 names incompatible might utf-8 fail.
192 353
193 rotate on disk 354 rotate on disk
194 print
195 lots of ui issues 355 lots of ui issues
196 save(?) 356 save(?)
197 preferences 357 preferences
198 ctrl-u in schnauzer
199 shift-cursor in schnauzer 358 shift-cursor in schnauzer
200 359
201=head1 AUTHOR 360=head1 AUTHOR
202 361
203Marc Lehmann <cv@plan9.de>. 362Marc Lehmann <cv@plan9.de>.

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