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Comparing CV/bin/cv (file contents):
Revision 1.28 by root, Thu Nov 13 02:03:46 2003 UTC vs.
Revision 1.49 by root, Sun Jul 31 07:01:31 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 $schnauzer->set_paths (\@ARGV); 132 $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);
133 $schnauzer->show_all;
113 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); 134 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
135 $viewer->show_all;
114} else { 136} else {
115 $schnauzer->set_dir (File::Spec->curdir); 137 $schnauzer->set_dir (File::Spec->curdir);
116 $mainwin->show_all; 138 $mainwin->show_all;
139 $viewer->show_all;
117} 140}
118 141
119$viewer->show_all; 142$viewer->show_all;
120 143
121main Gtk2; 144main Gtk2;
122 145
123__DATA__ 146__DATA__
124 147
125=head1 NAME 148=head1 NAME
126 149
127cv - a fast gtk+ image viewer modeled after xv 150cv - a fast gtk+ image viewer loosely modeled after XV
128 151
129=head1 SYNOPSIS 152=head1 SYNOPSIS
130 153
131 cv [file...] 154 cv [file...]
132 155
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
133=head1 DESCRIPTION 227=head1 DESCRIPTION
134
135None yet.
136 228
137=head2 THE IMAGE WINDOW 229=head2 THE IMAGE WINDOW
138 230
139You can use the following keys in the image window: 231You can use the following keys in the image window:
140 232
… …
143 > double the image size 235 > double the image size
144 , shrink the image by 10% 236 , shrink the image by 10%
145 . enlarge the image by 10% 237 . enlarge the image by 10%
146 n reset to normal size 238 n reset to normal size
147 m maximize to screensize 239 m maximize to screensize
148 M maxime to screensize, respecting image aspect 240 M maximize to screensize, respecting image aspect
149 ctrl-m toggle maxpect-always mode 241 ctrl-m toggle maxpect-always mode
150 u uncrop 242 u uncrop
151 r set scaling mode to 'nearest' (fastest) 243 r set scaling mode to 'nearest' (fastest)
152 s set scaling mode to 'bilinear' (default) 244 s set scaling mode to 'bilinear' (default)
153 S set scaling mode to 'hyper' (slowest) 245 shift-s set scaling mode to 'hyper' (slowest)
154 t rotate clockwise 90° 246 t rotate clockwise 90°
155 T rotate counterclockwise° 247 T rotate counterclockwise°
156 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
157 ctrl-s rescan visual schnauzer files for updates/deletes etc. 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
158 252
159The following keys are redirected to the default visual schnauzer window: 253And when playing movies, these additional keys are active:
160 254
161 space next image 255 left rewind by 10 seconds
162 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).
163 272
164=head2 THE VISUAL SCHNAUZER 273=head2 THE VISUAL SCHNAUZER
165 274
166You can use the following keys in the schnauzer window: 275You can use the following keys in the schnauzer window:
167 276
277 ctrl-space,
168 space move to and display next image 278 space move to and display next image
279 ctrl-backspace,
169 backspace move to and display previous image 280 backspace move to and display previous image
281 ctrl-return,
170 return display selected picture 282 return display selected picture, or enter directory
171 283
172 cursor keys move selection 284 cursor keys move selection
173 page-up move one page up 285 page-up move one page up
174 page-down move one page down 286 page-down move one page down
175 home move to first file 287 home move to first file
176 end move to last file 288 end move to last file
177 289
290 ctrl-a select all files
178 ctrl-d delete selected files WITHOUT ASKING AGAIN 291 ctrl-d delete selected files WITHOUT ASKING AGAIN
179 ctrl-g generate icons for the selected files 292 ctrl-g force generation of thumbnais for the selected files
293 ctrl-s rescan current direcory or files updates/deletes etc.
180 ctrl-u update selected (or all) icons if neccessary 294 ctrl-u update selected (or all) icons if neccessary
295 ctrl-l don't use, will become a plug-in eventually
296
297 0-9,
298 a-z find the first filename beginning with this letter
299
300Right-clicking into the schnauzer window displays a pop-up menu with
301additional actions.
302
303=head1 FILES
304
305When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
306it were a perl script. in that, you will mostly load plug-ins.
307
308Example:
309
310 system "fping -q -t 10 ether"
311 or require "/fs/cv/cvplugin.pl";
312
313This will load a plug-in, but only if the machine I<ether> is reachable
314(supposedly the plug-in is networked in some way :).
181 315
182=head1 ENVIRONMENT 316=head1 ENVIRONMENT
183 317
184=over 4 318=over 4
185 319
320=item CV_EDITOR
321
322The program that gets executed when the user presses C<CTRL-e> in the
323Schnauzer or image window. The default is C<gimp>.
324
186=item CV_PRINT_DESTINATION 325=item CV_PRINT_DESTINATION
187 326
188The default (perl-style) destination to use in the print dialog. 327The default (perl-style) destination to use in the print dialog.
328
329=item CV_TRASHCAN
330
331When set, must point to a directory where all files that are deleted are
332moved to. If unset, files that are deleted are really being deleted.
189 333
190=back 334=back
191 335
192=head1 SECURITY CONSIDERATIONS 336=head1 SECURITY CONSIDERATIONS
193 337
… …
199the likelyhood that there are additional problems where an invalid image 343the likelyhood that there are additional problems where an invalid image
200could cause gdk-pixbuf to crash or worse." 344could cause gdk-pixbuf to crash or worse."
201 345
202=head1 BUGS/TODO 346=head1 BUGS/TODO
203 347
348 Lots of functionality is missing.
349
204 Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names 350 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
205 incompatible with utf-8 fails. 351 names incompatible might utf-8 fail.
206 352
207 rotate on disk 353 rotate on disk
208 print
209 lots of ui issues 354 lots of ui issues
210 save(?) 355 save(?)
211 preferences 356 preferences
212 ctrl-u in schnauzer
213 shift-cursor in schnauzer 357 shift-cursor in schnauzer
214 358
215=head1 AUTHOR 359=head1 AUTHOR
216 360
217Marc Lehmann <cv@plan9.de>. 361Marc Lehmann <cv@plan9.de>.

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