… | |
… | |
43 | $viewer->load_image ($_[1]); |
43 | $viewer->load_image ($_[1]); |
44 | }); |
44 | }); |
45 | |
45 | |
46 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
46 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
47 | |
47 | |
48 | $s; |
48 | $s |
49 | } |
49 | } |
50 | |
50 | |
51 | sub std_keys { |
51 | sub std_keys { |
52 | my $key = $_[1]->keyval; |
52 | my $key = $_[1]->keyval; |
53 | my $state = $_[1]->state; |
53 | my $state = $_[1]->state; |
… | |
… | |
102 | |
102 | |
103 | $viewer->signal_connect (button3_press_event => sub { |
103 | $viewer->signal_connect (button3_press_event => sub { |
104 | $mainwin->visible |
104 | $mainwin->visible |
105 | ? $mainwin->hide |
105 | ? $mainwin->hide |
106 | : $mainwin->show_all; |
106 | : $mainwin->show_all; |
107 | 1; |
107 | 1 |
108 | }); |
108 | }); |
109 | |
109 | |
110 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
110 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
111 | |
111 | |
112 | $schnauzer = new_schnauzer; |
112 | $schnauzer = new_schnauzer; |
113 | |
113 | |
114 | $mainwin = new Gtk2::Window; |
114 | $mainwin = new Gtk2::Window; |
115 | $mainwin->set_title ("CV"); |
115 | $mainwin->set_title ("CV"); |
116 | $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; }); |
117 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 }); |
118 | |
118 | |
119 | $vbox->add ($schnauzer); |
119 | $vbox->add ($schnauzer); |
120 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
120 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
121 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
121 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
122 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
122 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
… | |
… | |
127 | |
127 | |
128 | $schnauzer->set_geometry_hints; |
128 | $schnauzer->set_geometry_hints; |
129 | } |
129 | } |
130 | |
130 | |
131 | if (@ARGV) { |
131 | if (@ARGV) { |
|
|
132 | @ARGV == 1 && -d $ARGV[0] |
|
|
133 | ? $schnauzer->set_dir (Glib::filename_to_unicode shift) |
132 | $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
134 | : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
133 | $schnauzer->show_all; |
135 | $schnauzer->show_all; |
134 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
136 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
135 | $viewer->show_all; |
|
|
136 | } else { |
137 | } else { |
137 | $schnauzer->set_dir (File::Spec->curdir); |
138 | $schnauzer->set_dir (File::Spec->curdir); |
138 | $mainwin->show_all; |
139 | $mainwin->show_all; |
139 | $viewer->show_all; |
|
|
140 | } |
140 | } |
141 | |
141 | |
142 | $viewer->show_all; |
142 | $viewer->show_all; |
143 | |
143 | |
144 | main Gtk2; |
144 | main Gtk2; |
145 | |
145 | |
146 | __DATA__ |
146 | __DATA__ |
|
|
147 | |
|
|
148 | =encoding utf-8 |
147 | |
149 | |
148 | =head1 NAME |
150 | =head1 NAME |
149 | |
151 | |
150 | cv - a fast gtk+ image viewer loosely modeled after XV |
152 | cv - a fast gtk+ image viewer loosely modeled after XV |
151 | |
153 | |
… | |
… | |
160 | |
162 | |
161 | =over 4 |
163 | =over 4 |
162 | |
164 | |
163 | =item * optimized directory scanning algorithm |
165 | =item * optimized directory scanning algorithm |
164 | |
166 | |
165 | The directory scanning in CV plays some tricks that - on most modern |
167 | The directory scanning in CV uses some tricks that - on most modern |
166 | filesystems - makes it possible to detect filetypes faster than stat()'ing |
168 | filesystems - makes it possible to detect filetypes faster than stat()'ing |
167 | every file. This makes CV suitable for directories with lots of files |
169 | every file. This makes CV suitable for directories with lots of files |
168 | (10000+). |
170 | (10000+). |
169 | |
171 | |
170 | This algorithm is quite unprecise - it doesn't make a difference between |
172 | This algorithm is quite unprecise - it doesn't make a difference between |
171 | files, device nodes, symlinks and the like, and filetype detection is done |
173 | files, device nodes, symlinks and the like, and filetype detection is done |
172 | using the file extension only. |
174 | using the file extension only. |
173 | |
175 | |
|
|
176 | On the positive side, it is usually many orders of magnitude faster than |
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177 | traditional scanning techniques (good for directories with 10000 or |
|
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178 | 100000+ files). |
|
|
179 | |
|
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180 | =item * queuing for all time-consuming background tasks |
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181 | |
|
|
182 | All tasks, such as unlinking files or generating thumbnails, that can be |
|
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183 | done in the background will be done so - no waiting required, even when |
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184 | changing directories. |
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185 | |
174 | =item * use of asynchronous I/O |
186 | =item * use of asynchronous I/O |
175 | |
187 | |
176 | CV tries to use asynchronous I/O whereever it makes sense, for example |
188 | CV tries to use asynchronous I/O whereever it makes sense, for example |
177 | while scanning directories, waiting for stat data or unlinking files. This |
189 | while scanning directories, waiting for stat data, unlinking files or |
178 | usually decreases scanning times for large directories a bit (especially |
190 | generating thumbnails. This usually decreases scanning times for large |
179 | on RAID devices and over NFS). |
191 | directories a bit (especially on RAID devices and over NFS) and makes CV |
|
|
192 | much more interactive. |
180 | |
193 | |
181 | =item * fast image loading |
194 | =item * fast image loading |
182 | |
195 | |
183 | The time span between the user issuing a command and displaying the new |
196 | The time span between the user issuing a command and displaying the new |
184 | image should be as small as possible. CV uses optimized (especially |
197 | image should be as small as possible. CV uses optimized (especially |
185 | for JPEG) loading functions and sacrifices some quality (e.g no gamma |
198 | for JPEG) loading functions and sacrifices some quality (e.g no gamma |
186 | correction) to achieve this speed. |
199 | correction, although this might change) to achieve this speed. |
187 | |
200 | |
188 | =item * fast thumbnail creation |
201 | =item * fast thumbnail creation |
189 | |
202 | |
190 | Thumbnail creation is crucial for me, so it's better be fast. Thumbnail |
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 |
191 | creation for JPEGs has been specially optimized. |
205 | creation for JPEGs has been specially optimized and can even take |
|
|
206 | advantage of multiple CPUs. |
192 | |
207 | |
193 | =item * minimum optical clutter |
208 | =item * minimum optical clutter |
194 | |
209 | |
195 | CV has no menus or other user interface elements that take up a lot of |
210 | CV has no menus or other user interface elements that take up a lot of |
196 | screen space. The schnauzer windows can also be somewhat crowded. |
211 | screen space (or are useful for beginning users). The schnauzer windows |
|
|
212 | can also be somewhat crowded. |
197 | |
213 | |
198 | The point of an image viewer is viewing images, not a nice GUI. This is |
214 | The point of an image viewer is viewing images, not a nice GUI. This is |
199 | similar to XV's behaviour. |
215 | similar to XV's behaviour. |
200 | |
216 | |
201 | =item * efficient (and hard to learn) user interface |
217 | =item * efficient (and hard to learn) user interface |
202 | |
218 | |
203 | CV uses key combinations. A lot. If you are an experienced XV user, you |
219 | CV uses key combinations. A lot. If you are an experienced XV user, you |
204 | will find most of these keys familiar. If not, CV might be hard to use at |
220 | will find most of these keys familiar. If not, CV might be hard to use at |
205 | first, but will be an efficient tool later. |
221 | first, but will be an efficient tool later. |
206 | |
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 |
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227 | most. |
|
|
228 | |
207 | =item * i18n'ed filename handling throughout |
229 | =item * i18n'ed filename handling throughout |
208 | |
230 | |
209 | As long as glib can recognize your filename encoding (either UTF-8 or |
231 | As long as glib can recognize your filename encoding (either UTF-8 or |
210 | locale-specific, depending on your settings) and you have the relevant |
232 | locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you |
211 | fonts, CV will display your filenames correctly. |
233 | have the relevant fonts, CV will display your filenames correctly. |
212 | |
234 | |
213 | =item * extensible through plug-ins |
235 | =item * extensible through plug-ins |
214 | |
236 | |
215 | I have weird plug-ins that access remote databases to find a |
237 | I have weird plug-ins that access remote databases to find a |
216 | directory. This is not likely to be of any use to other people. Likewise, |
238 | directory. This is not likely to be of any use to other people. Likewise, |
… | |
… | |
228 | |
250 | |
229 | =head2 THE IMAGE WINDOW |
251 | =head2 THE IMAGE WINDOW |
230 | |
252 | |
231 | You can use the following keys in the image window: |
253 | You can use the following keys in the image window: |
232 | |
254 | |
233 | q quit the program |
255 | q quit the program |
234 | < half the image size |
256 | < half the image size |
235 | > double the image size |
257 | > double the image size |
236 | , shrink the image by 10% |
258 | , shrink the image by 10% |
237 | . enlarge the image by 10% |
259 | . enlarge the image by 10% |
238 | n reset to normal size |
260 | n reset to normal size |
239 | m maximize to screensize |
261 | m maximize to screensize |
240 | M maximize to screensize, respecting image aspect |
262 | M maximize to screensize, respecting image aspect |
241 | ctrl-m toggle maxpect-always mode |
263 | ctrl-m toggle maxpect-always mode |
|
|
264 | ctrl-sift-m toggle using current image size as max image size |
242 | u uncrop |
265 | u uncrop |
243 | r set scaling mode to 'nearest' (fastest) |
266 | r set scaling mode to 'nearest' (fastest) |
244 | s set scaling mode to 'bilinear' (default) |
267 | s set scaling mode to 'bilinear' (default) |
245 | shift-s set scaling mode to 'hyper' (slowest) |
268 | shift-s set scaling mode to 'hyper' (slowest) |
246 | t rotate clockwise 90° |
269 | t rotate clockwise 90° |
247 | T rotate counterclockwise° |
270 | T rotate counterclockwise° |
248 | 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 |
249 | ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image |
272 | ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image |
250 | ctrl-p fire up the print fialog |
273 | ctrl-p fire up the print dialog |
251 | escape cancel a crop action |
274 | escape cancel a crop action |
252 | |
275 | |
253 | And when playing movies, these additional keys are active: |
276 | And when playing movies, these additional keys are active: |
254 | |
277 | |
255 | left rewind by 10 seconds |
278 | left rewind by 10 seconds |
256 | right forward by 10 seconds |
279 | right forward by 10 seconds |
257 | down rewind by 60 seconds |
280 | down rewind by 60 seconds |
258 | up forward by 60 seconds |
281 | up forward by 60 seconds |
259 | pg_up rewind by 600 seconds |
282 | pg_up rewind by 600 seconds |
260 | pg_down forward by 600 seconds |
283 | pg_down forward by 600 seconds |
261 | o toggle on-screen display |
284 | o toggle on-screen display |
262 | p pause/unpause |
285 | p pause/unpause |
263 | escape stop playing |
286 | escape stop playing |
264 | 9 turn volume down |
287 | 9 turn volume down |
265 | 0 turn volume up |
288 | 0 turn volume up |
266 | |
289 | |
267 | Any other keys will be sent to the default schnauzer window, which can be |
290 | Any other keys will be sent to the default schnauzer window, which can be |
268 | toggled on and off by right-clicking into the image window. |
291 | toggled on and off by right-clicking into the image window. |
269 | |
292 | |
270 | Left-clicking into the image window will let you crop the image (usually |
293 | Left-clicking into the image window will let you crop the image (usually |
… | |
… | |
273 | =head2 THE VISUAL SCHNAUZER |
296 | =head2 THE VISUAL SCHNAUZER |
274 | |
297 | |
275 | You can use the following keys in the schnauzer window: |
298 | You can use the following keys in the schnauzer window: |
276 | |
299 | |
277 | ctrl-space, |
300 | ctrl-space, |
278 | space move to and display next image |
301 | space move to and display next image |
279 | ctrl-backspace, |
302 | ctrl-backspace, |
280 | backspace move to and display previous image |
303 | backspace move to and display previous image |
281 | ctrl-return, |
304 | ctrl-return, |
282 | return display selected picture, or enter directory |
305 | return display selected picture, or enter directory |
283 | |
306 | |
284 | cursor keys move selection |
307 | cursor keys move selection |
285 | page-up move one page up |
308 | page-up move one page up |
286 | page-down move one page down |
309 | page-down move one page down |
287 | home move to first file |
310 | home move to first file |
288 | end move to last file |
311 | end move to last file |
289 | |
312 | |
290 | ctrl-a select all files |
313 | ctrl-a select all files |
|
|
314 | ctrl-shift-a select all files currently displayed in the schnauzer window |
291 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
315 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
292 | ctrl-g force generation of thumbnais for the selected files |
316 | ctrl-g force generation of thumbnais for the selected files |
293 | ctrl-s rescan current direcory or files updates/deletes etc. |
317 | ctrl-s rescan current direcory or files updates/deletes etc. |
294 | ctrl-u update selected (or all) icons if neccessary |
318 | ctrl-u update selected (or all) icons if neccessary |
295 | ctrl-l don't use, will become a plug-in eventually |
319 | ctrl-l don't use, will become a plug-in eventually |
|
|
320 | |
|
|
321 | ^ go to parent directory (caret). |
296 | |
322 | |
297 | 0-9, |
323 | 0-9, |
298 | a-z find the first filename beginning with this letter |
324 | a-z find the first filename beginning with this letter |
299 | |
325 | |
300 | Right-clicking into the schnauzer window displays a pop-up menu with |
326 | Right-clicking into the schnauzer window displays a pop-up menu with |
301 | additional actions. |
327 | additional actions. |
302 | |
328 | |
303 | =head1 FILES |
329 | =head1 FILES |
… | |
… | |
333 | |
359 | |
334 | =back |
360 | =back |
335 | |
361 | |
336 | =head1 SECURITY CONSIDERATIONS |
362 | =head1 SECURITY CONSIDERATIONS |
337 | |
363 | |
338 | CV uses Pixbuf to load images. Pixbuf is not considered safe for this |
364 | CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for |
339 | purpose, though (from the gtk-2.2 release notes): |
365 | this purpose, though (from the gtk-2.2 release notes): |
340 | |
366 | |
341 | "While efforts have been made to make gdk-pixbuf robust against invalid |
367 | "While efforts have been made to make gdk-pixbuf robust against invalid |
342 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
368 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
343 | the likelyhood that there are additional problems where an invalid image |
369 | the likelyhood that there are additional problems where an invalid image |
344 | could cause gdk-pixbuf to crash or worse." |
370 | could cause gdk-pixbuf to crash or worse." |
… | |
… | |
346 | =head1 BUGS/TODO |
372 | =head1 BUGS/TODO |
347 | |
373 | |
348 | Lots of functionality is missing. |
374 | Lots of functionality is missing. |
349 | |
375 | |
350 | Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with |
376 | Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with |
351 | names incompatible might utf-8 fail. |
377 | names incompatible with utf-8 might fail. |
352 | |
378 | |
353 | rotate on disk |
379 | rotate on disk |
354 | lots of ui issues |
380 | lots of ui issues |
355 | save(?) |
381 | save(?) |
356 | preferences |
382 | preferences |
357 | shift-cursor in schnauzer |
|
|
358 | |
383 | |
359 | =head1 AUTHOR |
384 | =head1 AUTHOR |
360 | |
385 | |
361 | Marc Lehmann <cv@plan9.de>. |
386 | Marc Lehmann <cv@plan9.de>. |
362 | |
387 | |