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Comparing CV/bin/cv (file contents):
Revision 1.33 by root, Mon Feb 7 13:32:15 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;
134 $viewer->show_all;
119} 135}
120 136
121$viewer->show_all; 137$viewer->show_all;
122 138
123main Gtk2; 139main Gtk2;
124 140
125__DATA__ 141__DATA__
126 142
127=head1 NAME 143=head1 NAME
128 144
129cv - a fast gtk+ image viewer modeled after xv 145cv - a fast gtk+ image viewer loosely modeled after XV
130 146
131=head1 SYNOPSIS 147=head1 SYNOPSIS
132 148
133 cv [file...] 149 cv [file...]
134 150
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
135=head1 DESCRIPTION 222=head1 DESCRIPTION
136
137None yet.
138 223
139=head2 THE IMAGE WINDOW 224=head2 THE IMAGE WINDOW
140 225
141You can use the following keys in the image window: 226You can use the following keys in the image window:
142 227
… …
145 > double the image size 230 > double the image size
146 , shrink the image by 10% 231 , shrink the image by 10%
147 . enlarge the image by 10% 232 . enlarge the image by 10%
148 n reset to normal size 233 n reset to normal size
149 m maximize to screensize 234 m maximize to screensize
150 M maxime to screensize, respecting image aspect 235 M maximize to screensize, respecting image aspect
151 ctrl-m toggle maxpect-always mode 236 ctrl-m toggle maxpect-always mode
152 u uncrop 237 u uncrop
153 r set scaling mode to 'nearest' (fastest) 238 r set scaling mode to 'nearest' (fastest)
154 s set scaling mode to 'bilinear' (default) 239 s set scaling mode to 'bilinear' (default)
155 S set scaling mode to 'hyper' (slowest) 240 shift-s set scaling mode to 'hyper' (slowest)
156 t rotate clockwise 90° 241 t rotate clockwise 90°
157 T rotate counterclockwise° 242 T rotate counterclockwise°
158 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
159 ctrl-s rescan visual schnauzer files for updates/deletes etc.
160 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
161 247
162And when playing movies, these additional keys are active: 248And when playing movies, these additional keys are active:
163 249
164 left rewind by 10 seconds 250 left rewind by 10 seconds
165 right forward by 10 seconds 251 right forward by 10 seconds
… …
171 p pause/unpause 257 p pause/unpause
172 escape stop playing 258 escape stop playing
173 9 turn volume down 259 9 turn volume down
174 0 turn volume up 260 0 turn volume up
175 261
176The 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.
177 264
178 space next image 265Left-clicking into the image window will let you crop the image (usually
179 backspace last image 266to zoom into large images that CV scales down).
180 267
181=head2 THE VISUAL SCHNAUZER 268=head2 THE VISUAL SCHNAUZER
182 269
183You can use the following keys in the schnauzer window: 270You can use the following keys in the schnauzer window:
184 271
272 ctrl-space,
185 space move to and display next image 273 space move to and display next image
274 ctrl-backspace,
186 backspace move to and display previous image 275 backspace move to and display previous image
276 ctrl-return,
187 return display selected picture 277 return display selected picture, or enter directory
188 278
189 cursor keys move selection 279 cursor keys move selection
190 page-up move one page up 280 page-up move one page up
191 page-down move one page down 281 page-down move one page down
192 home move to first file 282 home move to first file
193 end move to last file 283 end move to last file
194 284
285 ctrl-a select all files
195 ctrl-d delete selected files WITHOUT ASKING AGAIN 286 ctrl-d delete selected files WITHOUT ASKING AGAIN
196 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.
197 ctrl-u update selected (or all) icons if neccessary 289 ctrl-u update selected (or all) icons if neccessary
198 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 :).
199 310
200=head1 ENVIRONMENT 311=head1 ENVIRONMENT
201 312
202=over 4 313=over 4
203 314
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
204=item CV_PRINT_DESTINATION 320=item CV_PRINT_DESTINATION
205 321
206The 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.
207 328
208=back 329=back
209 330
210=head1 SECURITY CONSIDERATIONS 331=head1 SECURITY CONSIDERATIONS
211 332
… …
217the likelyhood that there are additional problems where an invalid image 338the likelyhood that there are additional problems where an invalid image
218could cause gdk-pixbuf to crash or worse." 339could cause gdk-pixbuf to crash or worse."
219 340
220=head1 BUGS/TODO 341=head1 BUGS/TODO
221 342
343 Lots of functionality is missing.
344
222 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
223 incompatible with utf-8 fails. 346 names incompatible might utf-8 fail.
224 347
225 rotate on disk 348 rotate on disk
226 print
227 lots of ui issues 349 lots of ui issues
228 save(?) 350 save(?)
229 preferences 351 preferences
230 ctrl-u in schnauzer
231 shift-cursor in schnauzer 352 shift-cursor in schnauzer
232 353
233=head1 AUTHOR 354=head1 AUTHOR
234 355
235Marc Lehmann <cv@plan9.de>. 356Marc Lehmann <cv@plan9.de>.

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