1 | #!/opt/bin/perl |
1 | #!/opt/bin/perl |
|
|
2 | |
|
|
3 | use Cwd (); |
|
|
4 | use Encode (); |
2 | |
5 | |
3 | use Gtk2 -init; |
6 | use Gtk2 -init; |
4 | use Gtk2::Gdk::Keysyms; |
7 | use Gtk2::Gdk::Keysyms; |
5 | |
8 | |
|
|
9 | use Gtk2::CV; |
|
|
10 | |
6 | use Gtk2::CV::ImageWindow; |
11 | use Gtk2::CV::ImageWindow; |
7 | use Gtk2::CV::Schnauzer; |
12 | use Gtk2::CV::Schnauzer; |
8 | |
13 | |
9 | use Gtk2::CV; |
14 | BEGIN { |
|
|
15 | require Gtk2::CV::Plugin; |
|
|
16 | require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc"; |
|
|
17 | } |
|
|
18 | |
|
|
19 | use Gtk2::CV::Plugin::NameCluster; |
|
|
20 | use Gtk2::CV::Plugin::RCluster; |
10 | |
21 | |
11 | Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); |
22 | Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); |
12 | |
23 | |
13 | use File::Spec; |
24 | use File::Spec; |
14 | |
25 | |
15 | my $mainwin; |
26 | my $mainwin; |
16 | my $viewer; |
27 | my $viewer; |
17 | my $schnauzer; |
28 | my $schnauzer; |
18 | my $info; |
29 | my $info; |
19 | my $help; |
30 | my $help; |
|
|
31 | |
|
|
32 | my $schnauzer_idx = 0; |
20 | |
33 | |
21 | sub new_schnauzer { |
34 | sub new_schnauzer { |
22 | my $s = new Gtk2::CV::Schnauzer; |
35 | my $s = new Gtk2::CV::Schnauzer; |
23 | |
36 | |
24 | $s->signal_connect_after (key_press_event => \&std_keys); |
37 | $s->signal_connect_after (key_press_event => \&std_keys); |
… | |
… | |
28 | -s $_[1]; |
41 | -s $_[1]; |
29 | $info->set_label ($label); |
42 | $info->set_label ($label); |
30 | $viewer->load_image ($_[1]); |
43 | $viewer->load_image ($_[1]); |
31 | }); |
44 | }); |
32 | |
45 | |
|
|
46 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
|
|
47 | |
33 | $s; |
48 | $s |
34 | } |
49 | } |
35 | |
50 | |
36 | sub std_keys { |
51 | sub std_keys { |
37 | my $key = $_[1]->keyval; |
52 | my $key = $_[1]->keyval; |
38 | my $state = $_[1]->state; |
53 | my $state = $_[1]->state; |
… | |
… | |
41 | |
56 | |
42 | if ($key == $Gtk2::Gdk::Keysyms{q}) { |
57 | if ($key == $Gtk2::Gdk::Keysyms{q}) { |
43 | main_quit Gtk2; |
58 | main_quit Gtk2; |
44 | } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { |
59 | } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { |
45 | my $w = new Gtk2::Window; |
60 | my $w = new Gtk2::Window; |
|
|
61 | |
|
|
62 | $w->set_title ("CV: Schnauzer"); |
46 | $w->add (my $s = new_schnauzer); |
63 | $w->add (my $s = new_schnauzer); |
47 | $s->set_dir (File::Spec->curdir); |
64 | $s->set_dir (File::Spec->curdir); |
|
|
65 | $s->set_geometry_hints; |
48 | $w->show_all; |
66 | $w->show_all; |
|
|
67 | |
49 | } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) { |
68 | } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) { |
50 | unless ($help) { |
69 | unless ($help) { |
51 | require Gtk2::PodViewer; |
70 | require Gtk2::PodViewer; |
52 | |
71 | |
53 | $help = new Gtk2::Window; |
72 | $help = new Gtk2::Window; |
54 | $help->set_title ("CV Help"); |
73 | $help->set_title ("CV: Help"); |
55 | $help->set_default_size (500, 300); |
74 | $help->set_default_size (500, 300); |
56 | $help->signal_connect (delete_event => sub { $help->hide; 1 }); |
75 | $help->signal_connect (delete_event => sub { $help->hide; 1 }); |
57 | |
76 | |
58 | $help->add (my $sw = new Gtk2::ScrolledWindow); |
77 | $help->add (my $sw = new Gtk2::ScrolledWindow); |
59 | $sw->add (my $h = new Gtk2::PodViewer); |
78 | $sw->add (my $h = new Gtk2::PodViewer); |
… | |
… | |
62 | $h->load_string (do { local $/; <DATA> }); |
81 | $h->load_string (do { local $/; <DATA> }); |
63 | } |
82 | } |
64 | |
83 | |
65 | $help->show_all; |
84 | $help->show_all; |
66 | } else { |
85 | } else { |
67 | #$mainwin->show_all; |
86 | return 0; |
68 | $schnauzer->handle_key ($key, $state); |
|
|
69 | } |
87 | } |
70 | |
88 | |
71 | 1; |
89 | 1 |
72 | } |
90 | } |
73 | |
91 | |
74 | { |
92 | { |
75 | $viewer = new Gtk2::CV::ImageWindow; |
93 | $viewer = new Gtk2::CV::ImageWindow; |
76 | |
94 | |
77 | $viewer->set_title ("CV: Image"); |
95 | $viewer->set_title ("CV: Image"); |
78 | |
96 | |
79 | $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 | }); |
80 | $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); |
101 | $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); |
81 | |
102 | |
82 | $viewer->signal_connect (button3_press_event => sub { |
103 | $viewer->signal_connect (button3_press_event => sub { |
83 | $mainwin->visible |
104 | $mainwin->visible |
84 | ? $mainwin->hide |
105 | ? $mainwin->hide |
85 | : $mainwin->show_all; |
106 | : $mainwin->show_all; |
|
|
107 | 1 |
86 | }); |
108 | }); |
|
|
109 | |
|
|
110 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
87 | |
111 | |
88 | $schnauzer = new_schnauzer; |
112 | $schnauzer = new_schnauzer; |
89 | |
113 | |
90 | $mainwin = new Gtk2::Window; |
114 | $mainwin = new Gtk2::Window; |
91 | $mainwin->set_title ("CV"); |
115 | $mainwin->set_title ("CV"); |
92 | $mainwin->add (my $vbox = new Gtk2::VBox); |
116 | $mainwin->add (my $vbox = new Gtk2::VBox); |
|
|
117 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 }); |
93 | |
118 | |
94 | $vbox->add ($schnauzer); |
119 | $vbox->add ($schnauzer); |
95 | $vbox->add (my $frame = new Gtk2::Frame); |
120 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
96 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
121 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
97 | $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); |
122 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
98 | $hbox->pack_start (($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"); |
|
|
127 | |
|
|
128 | $schnauzer->set_geometry_hints; |
99 | } |
129 | } |
100 | |
130 | |
101 | if (@ARGV) { |
131 | if (@ARGV) { |
102 | $schnauzer->set_paths (\@ARGV); |
132 | @ARGV == 1 && -d $ARGV[0] |
|
|
133 | ? $schnauzer->set_dir (Glib::filename_to_unicode shift) |
|
|
134 | : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
|
|
135 | $schnauzer->show_all; |
103 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
136 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
104 | } else { |
137 | } else { |
105 | $schnauzer->set_dir (File::Spec->curdir); |
138 | $schnauzer->set_dir (File::Spec->curdir); |
106 | $mainwin->show_all; |
139 | $mainwin->show_all; |
107 | } |
140 | } |
… | |
… | |
110 | |
143 | |
111 | main Gtk2; |
144 | main Gtk2; |
112 | |
145 | |
113 | __DATA__ |
146 | __DATA__ |
114 | |
147 | |
|
|
148 | =encoding utf-8 |
|
|
149 | |
115 | =head1 NAME |
150 | =head1 NAME |
116 | |
151 | |
117 | cv - a fast gtk+ image viewer modeled after xv |
152 | cv - a fast gtk+ image viewer loosely modeled after XV |
118 | |
153 | |
119 | =head1 SYNOPSIS |
154 | =head1 SYNOPSIS |
120 | |
155 | |
121 | cv [file...] |
156 | cv [file...] |
122 | |
157 | |
|
|
158 | =head1 FEATURES |
|
|
159 | |
|
|
160 | CV is supposed to work similar to the venerable XV image viewer, just |
|
|
161 | faster. Why faster? |
|
|
162 | |
|
|
163 | =over 4 |
|
|
164 | |
|
|
165 | =item * optimized directory scanning algorithm |
|
|
166 | |
|
|
167 | The directory scanning in CV uses some tricks that - on most modern |
|
|
168 | filesystems - makes it possible to detect filetypes faster than stat()'ing |
|
|
169 | every file. This makes CV suitable for directories with lots of files |
|
|
170 | (10000+). |
|
|
171 | |
|
|
172 | This algorithm is quite unprecise - it doesn't make a difference between |
|
|
173 | files, device nodes, symlinks and the like, and filetype detection is done |
|
|
174 | using the file extension only. |
|
|
175 | |
|
|
176 | On the positive side, it is usually many orders of magnitude faster than |
|
|
177 | traditional scanning techniques (good for directories with 10000 or |
|
|
178 | 100000+ files). |
|
|
179 | |
|
|
180 | =item * queuing for all time-consuming background tasks |
|
|
181 | |
|
|
182 | All tasks, such as unlinking files or generating thumbnails, that can be |
|
|
183 | done in the background will be done so - no waiting required, even when |
|
|
184 | changing directories. |
|
|
185 | |
|
|
186 | =item * use of asynchronous I/O |
|
|
187 | |
|
|
188 | CV tries to use asynchronous I/O whereever it makes sense, for example |
|
|
189 | while scanning directories, waiting for stat data, unlinking files or |
|
|
190 | generating thumbnails. This usually decreases scanning times for large |
|
|
191 | directories a bit (especially on RAID devices and over NFS) and makes CV |
|
|
192 | much more interactive. |
|
|
193 | |
|
|
194 | =item * fast image loading |
|
|
195 | |
|
|
196 | The time span between the user issuing a command and displaying the new |
|
|
197 | image should be as small as possible. CV uses optimized (especially |
|
|
198 | for JPEG) loading functions and sacrifices some quality (e.g no gamma |
|
|
199 | correction, although this might change) to achieve this speed. |
|
|
200 | |
|
|
201 | =item * fast thumbnail creation |
|
|
202 | |
|
|
203 | Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so |
|
|
204 | on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail |
|
|
205 | creation for JPEGs has been specially optimized and can even take |
|
|
206 | advantage of multiple CPUs. |
|
|
207 | |
|
|
208 | =item * minimum optical clutter |
|
|
209 | |
|
|
210 | CV has no menus or other user interface elements that take up a lot of |
|
|
211 | screen space (or are useful for beginning users). The schnauzer windows |
|
|
212 | can also be somewhat crowded. |
|
|
213 | |
|
|
214 | The point of an image viewer is viewing images, not a nice GUI. This is |
|
|
215 | similar to XV's behaviour. |
|
|
216 | |
|
|
217 | =item * efficient (and hard to learn) user interface |
|
|
218 | |
|
|
219 | CV uses key combinations. A lot. If you are an experienced XV user, you |
|
|
220 | will find most of these keys familiar. If not, CV might be hard to use at |
|
|
221 | first, but will be an efficient tool later. |
|
|
222 | |
|
|
223 | =item * multi-window GUI |
|
|
224 | |
|
|
225 | CV doesn't force you to use a specific layout, instead it relies on your |
|
|
226 | window manager, thus enabling you to chose whatever layout that suits you |
|
|
227 | most. |
|
|
228 | |
|
|
229 | =item * i18n'ed filename handling throughout |
|
|
230 | |
|
|
231 | As long as glib can recognize your filename encoding (either UTF-8 or |
|
|
232 | locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you |
|
|
233 | have the relevant fonts, CV will display your filenames correctly. |
|
|
234 | |
|
|
235 | =item * extensible through plug-ins |
|
|
236 | |
|
|
237 | I have weird plug-ins that access remote databases to find a |
|
|
238 | directory. This is not likely to be of any use to other people. Likewise, |
|
|
239 | others might have weird requirements I cannot dream of. |
|
|
240 | |
|
|
241 | =item * filename clustering |
|
|
242 | |
|
|
243 | Among the standard plug-ins is a filename clustering plug-in, that (in |
|
|
244 | case of tens of thousands images in one directory) might be able to |
|
|
245 | cluster similar names together. |
|
|
246 | |
|
|
247 | =back |
|
|
248 | |
123 | =head1 DESCRIPTION |
249 | =head1 DESCRIPTION |
124 | |
250 | |
125 | None yet. |
|
|
126 | |
|
|
127 | =head2 THE IMAGE WINDOW |
251 | =head2 THE IMAGE WINDOW |
128 | |
252 | |
129 | You can use the following keys in the image window: |
253 | You can use the following keys in the image window: |
130 | |
254 | |
131 | q quit the program |
255 | q quit the program |
132 | < half the image size |
256 | < half the image size |
133 | > double the image size |
257 | > double the image size |
134 | , shrink the image by 10% |
258 | , shrink the image by 10% |
135 | . enlarge the image by 10% |
259 | . enlarge the image by 10% |
136 | n reset to normal size |
260 | n reset to normal size |
137 | m maximize to screensize |
261 | m maximize to screensize |
138 | M maxime to screensize, respecting image aspect |
262 | M maximize to screensize, respecting image aspect |
|
|
263 | ctrl-m toggle maxpect-always mode |
|
|
264 | ctrl-sift-m toggle using current image size as max image size |
139 | u uncrop |
265 | u uncrop |
140 | r set scaling mode to 'nearest' (fastest) |
266 | r set scaling mode to 'nearest' (fastest) |
141 | s set scaling mode to 'bilinear' (default) |
267 | s set scaling mode to 'bilinear' (default) |
142 | S set scaling mode to 'hyper' (slowest) |
268 | shift-s set scaling mode to 'hyper' (slowest) |
143 | t rotate clockwise 90° |
269 | t rotate clockwise 90° |
144 | T rotate counterclockwise° |
270 | T rotate counterclockwise° |
145 | ctrl-v open a new visual schnauzer window for the current dir |
271 | ctrl-v open a new visual schnauzer window for the current dir |
|
|
272 | ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image |
|
|
273 | ctrl-p fire up the print dialog |
|
|
274 | escape cancel a crop action |
146 | |
275 | |
147 | The following keys are redirected to the default visual schnauzer window: |
276 | And when playing movies, these additional keys are active: |
148 | |
277 | |
149 | space next image |
278 | left rewind by 10 seconds |
150 | backspace last image |
279 | right forward by 10 seconds |
|
|
280 | down rewind by 60 seconds |
|
|
281 | up forward by 60 seconds |
|
|
282 | pg_up rewind by 600 seconds |
|
|
283 | pg_down forward by 600 seconds |
|
|
284 | o toggle on-screen display |
|
|
285 | p pause/unpause |
|
|
286 | escape stop playing |
|
|
287 | 9 turn volume down |
|
|
288 | 0 turn volume up |
|
|
289 | |
|
|
290 | Any other keys will be sent to the default schnauzer window, which can be |
|
|
291 | toggled on and off by right-clicking into the image window. |
|
|
292 | |
|
|
293 | Left-clicking into the image window will let you crop the image (usually |
|
|
294 | to zoom into large images that CV scales down). |
151 | |
295 | |
152 | =head2 THE VISUAL SCHNAUZER |
296 | =head2 THE VISUAL SCHNAUZER |
153 | |
297 | |
154 | You can use the following keys in the schnauzer window: |
298 | You can use the following keys in the schnauzer window: |
155 | |
299 | |
|
|
300 | ctrl-space, |
156 | space move to and display next image |
301 | space move to and display next image |
|
|
302 | ctrl-backspace, |
157 | backspace move to and display previous image |
303 | backspace move to and display previous image |
|
|
304 | ctrl-return, |
158 | return display selected picture |
305 | return display selected picture, or enter directory |
159 | |
306 | |
160 | cursor keys move selection |
307 | cursor keys move selection |
161 | page-up move one page up |
308 | page-up move one page up |
162 | page-down move one page down |
309 | page-down move one page down |
163 | home move to first file |
310 | home move to first file |
164 | end move to last file |
311 | end move to last file |
165 | |
312 | |
166 | ctrl-g generate icons for the selected files |
313 | ctrl-a select all files |
|
|
314 | ctrl-shift-a select all files currently displayed in the schnauzer window |
167 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
315 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
|
|
316 | ctrl-g force generation of thumbnais for the selected files |
|
|
317 | ctrl-s rescan current direcory or files updates/deletes etc. |
|
|
318 | ctrl-u update selected (or all) icons if neccessary |
|
|
319 | ctrl-l don't use, will become a plug-in eventually |
|
|
320 | |
|
|
321 | ^ go to parent directory (caret). |
|
|
322 | |
|
|
323 | 0-9, |
|
|
324 | a-z find the first filename beginning with this letter |
|
|
325 | |
|
|
326 | Right-clicking into the schnauzer window displays a pop-up menu with |
|
|
327 | additional actions. |
|
|
328 | |
|
|
329 | =head3 SELECTION |
|
|
330 | |
|
|
331 | You can select entries in the Schnauzer in a variety of ways: |
|
|
332 | |
|
|
333 | =over 4 |
|
|
334 | |
|
|
335 | =item Keyboard |
|
|
336 | |
|
|
337 | Moving the cursor with the keyboard will first deselect all files and then |
|
|
338 | select the file you moved to. |
|
|
339 | |
|
|
340 | =item Clicking |
|
|
341 | |
|
|
342 | Clicking on an entry will select the one you clicked and deselect all |
|
|
343 | others. |
|
|
344 | |
|
|
345 | =item Shift-Clicking |
|
|
346 | |
|
|
347 | Shift-clicking will toggle the selection on the entry under the mouse. |
|
|
348 | |
|
|
349 | =item Dragging |
|
|
350 | |
|
|
351 | Dragging will select all entries between the one selected when pushing the |
|
|
352 | button and the one selected when releasing the button. If you move above |
|
|
353 | or below the schnauzer area while drag-selecting, the schnauzer will move |
|
|
354 | up/down one row twice per second. In addition, horizontal mouse movement |
|
|
355 | acts as a kind of invisible horizontal scrollbar. |
|
|
356 | |
|
|
357 | =item Hint: double-click works while click-selecting |
|
|
358 | |
|
|
359 | You can double-click any image while click-selecting to display it |
|
|
360 | without stopping the selection process. This will act as if you normally |
|
|
361 | double-clicked the image to display it, and will toggle the selection |
|
|
362 | twice, resulting in no change. |
|
|
363 | |
|
|
364 | =back |
|
|
365 | |
|
|
366 | =head1 FILES |
|
|
367 | |
|
|
368 | When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if |
|
|
369 | it were a perl script. in that, you will mostly load plug-ins. |
|
|
370 | |
|
|
371 | Example: |
|
|
372 | |
|
|
373 | system "fping -q -t 10 ether" |
|
|
374 | or require "/fs/cv/cvplugin.pl"; |
|
|
375 | |
|
|
376 | This will load a plug-in, but only if the machine I<ether> is reachable |
|
|
377 | (supposedly the plug-in is networked in some way :). |
|
|
378 | |
|
|
379 | =head1 ENVIRONMENT |
|
|
380 | |
|
|
381 | =over 4 |
|
|
382 | |
|
|
383 | =item CV_EDITOR |
|
|
384 | |
|
|
385 | The program that gets executed when the user presses C<CTRL-e> in the |
|
|
386 | Schnauzer or image window. The default is C<gimp>. |
|
|
387 | |
|
|
388 | =item CV_PRINT_DESTINATION |
|
|
389 | |
|
|
390 | The default (perl-style) destination to use in the print dialog. |
|
|
391 | |
|
|
392 | =item CV_TRASHCAN |
|
|
393 | |
|
|
394 | When set, must point to a directory where all files that are deleted are |
|
|
395 | moved to. If unset, files that are deleted are really being deleted. |
|
|
396 | |
|
|
397 | =back |
|
|
398 | |
|
|
399 | =head1 SECURITY CONSIDERATIONS |
|
|
400 | |
|
|
401 | CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for |
|
|
402 | this purpose, though (from the gtk-2.2 release notes): |
|
|
403 | |
|
|
404 | "While efforts have been made to make gdk-pixbuf robust against invalid |
|
|
405 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
|
|
406 | the likelyhood that there are additional problems where an invalid image |
|
|
407 | could cause gdk-pixbuf to crash or worse." |
168 | |
408 | |
169 | =head1 BUGS/TODO |
409 | =head1 BUGS/TODO |
170 | |
410 | |
|
|
411 | Lots of functionality is missing. |
|
|
412 | |
|
|
413 | Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with |
|
|
414 | names incompatible with utf-8 might fail. |
|
|
415 | |
171 | rotate on disk |
416 | rotate on disk |
172 | print |
|
|
173 | lots of ui issues |
417 | lots of ui issues |
174 | save(?) |
418 | save(?) |
175 | preferences |
419 | preferences |
176 | ctrl-u in schnauzer |
|
|
177 | shift-cursor in schnauzer |
|
|
178 | |
420 | |
179 | =head1 AUTHOR |
421 | =head1 AUTHOR |
180 | |
422 | |
181 | Marc Lehmann <cv@plan9.de>. |
423 | Marc Lehmann <cv@plan9.de>. |
182 | |
424 | |