… | |
… | |
4 | use Encode (); |
4 | use Encode (); |
5 | |
5 | |
6 | use Gtk2 -init; |
6 | use Gtk2 -init; |
7 | use Gtk2::Gdk::Keysyms; |
7 | use Gtk2::Gdk::Keysyms; |
8 | |
8 | |
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9 | use Gtk2::CV; |
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10 | |
9 | use Gtk2::CV::ImageWindow; |
11 | use Gtk2::CV::ImageWindow; |
10 | use Gtk2::CV::Schnauzer; |
12 | use Gtk2::CV::Schnauzer; |
11 | |
13 | |
12 | use Gtk2::CV; |
14 | BEGIN { |
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15 | require Gtk2::CV::Plugin; |
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16 | require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc"; |
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17 | } |
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18 | |
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19 | use Gtk2::CV::Plugin::NameCluster; |
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20 | use Gtk2::CV::Plugin::RCluster; |
13 | |
21 | |
14 | Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); |
22 | Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc"); |
15 | |
23 | |
16 | use File::Spec; |
24 | use File::Spec; |
17 | |
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18 | require Gtk2::CV::Plugin; |
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19 | require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc"; |
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20 | |
25 | |
21 | my $mainwin; |
26 | my $mainwin; |
22 | my $viewer; |
27 | my $viewer; |
23 | my $schnauzer; |
28 | my $schnauzer; |
24 | my $info; |
29 | my $info; |
… | |
… | |
38 | $viewer->load_image ($_[1]); |
43 | $viewer->load_image ($_[1]); |
39 | }); |
44 | }); |
40 | |
45 | |
41 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
46 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
42 | |
47 | |
43 | $s; |
48 | $s |
44 | } |
49 | } |
45 | |
50 | |
46 | sub std_keys { |
51 | sub std_keys { |
47 | my $key = $_[1]->keyval; |
52 | my $key = $_[1]->keyval; |
48 | my $state = $_[1]->state; |
53 | my $state = $_[1]->state; |
… | |
… | |
97 | |
102 | |
98 | $viewer->signal_connect (button3_press_event => sub { |
103 | $viewer->signal_connect (button3_press_event => sub { |
99 | $mainwin->visible |
104 | $mainwin->visible |
100 | ? $mainwin->hide |
105 | ? $mainwin->hide |
101 | : $mainwin->show_all; |
106 | : $mainwin->show_all; |
102 | 1; |
107 | 1 |
103 | }); |
108 | }); |
104 | |
109 | |
105 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
110 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
106 | |
111 | |
107 | $schnauzer = new_schnauzer; |
112 | $schnauzer = new_schnauzer; |
108 | |
113 | |
109 | $mainwin = new Gtk2::Window; |
114 | $mainwin = new Gtk2::Window; |
110 | $mainwin->set_title ("CV"); |
115 | $mainwin->set_title ("CV"); |
111 | $mainwin->add (my $vbox = new Gtk2::VBox); |
116 | $mainwin->add (my $vbox = new Gtk2::VBox); |
112 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); |
117 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 }); |
113 | |
118 | |
114 | $vbox->add ($schnauzer); |
119 | $vbox->add ($schnauzer); |
115 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
120 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
116 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
121 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
117 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
122 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
… | |
… | |
122 | |
127 | |
123 | $schnauzer->set_geometry_hints; |
128 | $schnauzer->set_geometry_hints; |
124 | } |
129 | } |
125 | |
130 | |
126 | if (@ARGV) { |
131 | if (@ARGV) { |
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132 | @ARGV == 1 && -d $ARGV[0] |
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133 | ? $schnauzer->set_dir (Glib::filename_to_unicode shift) |
127 | $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
134 | : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
128 | $schnauzer->show_all; |
135 | $schnauzer->show_all; |
129 | $viewer->show_all; |
|
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130 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
136 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
131 | } else { |
137 | } else { |
132 | $schnauzer->set_dir (File::Spec->curdir); |
138 | $schnauzer->set_dir (File::Spec->curdir); |
133 | $mainwin->show_all; |
139 | $mainwin->show_all; |
134 | $viewer->show_all; |
|
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135 | } |
140 | } |
136 | |
141 | |
137 | $viewer->show_all; |
142 | $viewer->show_all; |
138 | |
143 | |
139 | main Gtk2; |
144 | main Gtk2; |
140 | |
145 | |
141 | __DATA__ |
146 | __DATA__ |
142 | |
147 | |
143 | =head1 NAME |
148 | =head1 NAME |
144 | |
149 | |
145 | cv - a fast gtk+ image viewer modeled after xv |
150 | cv - a fast gtk+ image viewer loosely modeled after XV |
146 | |
151 | |
147 | =head1 SYNOPSIS |
152 | =head1 SYNOPSIS |
148 | |
153 | |
149 | cv [file...] |
154 | cv [file...] |
150 | |
155 | |
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156 | =head1 FEATURES |
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157 | |
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158 | CV is supposed to work similar to the venerable XV image viewer, just |
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159 | faster. Why faster? |
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160 | |
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161 | =over 4 |
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162 | |
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163 | =item * optimized directory scanning algorithm |
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164 | |
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165 | The directory scanning in CV uses some tricks that - on most modern |
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166 | filesystems - makes it possible to detect filetypes faster than stat()'ing |
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167 | every file. This makes CV suitable for directories with lots of files |
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168 | (10000+). |
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169 | |
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170 | This algorithm is quite unprecise - it doesn't make a difference between |
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171 | files, device nodes, symlinks and the like, and filetype detection is done |
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172 | using the file extension only. |
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173 | |
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174 | On the positive side, it is usually many orders of magnitude faster than |
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175 | traditional scanning techniques (good for directories with 10000 or |
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176 | 100000+ files). |
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177 | |
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178 | =item * queuing for all time-consuming background tasks |
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179 | |
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180 | All tasks, such as unlinking files or generating thumbnails, that can be |
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181 | done in the background will be done so - no waiting required, even when |
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182 | changing directories. |
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183 | |
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184 | =item * use of asynchronous I/O |
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185 | |
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186 | CV tries to use asynchronous I/O whereever it makes sense, for example |
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187 | while scanning directories, waiting for stat data, unlinking files or |
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188 | generating thumbnails. This usually decreases scanning times for large |
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189 | directories a bit (especially on RAID devices and over NFS) and makes CV |
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190 | much more interactive. |
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191 | |
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192 | =item * fast image loading |
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193 | |
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194 | The time span between the user issuing a command and displaying the new |
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195 | image should be as small as possible. CV uses optimized (especially |
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196 | for JPEG) loading functions and sacrifices some quality (e.g no gamma |
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197 | correction, although this might change) to achieve this speed. |
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198 | |
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199 | =item * fast thumbnail creation |
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200 | |
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201 | Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so |
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202 | on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail |
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203 | creation for JPEGs has been specially optimized and can even take |
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204 | advantage of multiple CPUs. |
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205 | |
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206 | =item * minimum optical clutter |
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207 | |
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208 | CV has no menus or other user interface elements that take up a lot of |
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209 | screen space (or are useful for beginning users). The schnauzer windows |
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210 | can also be somewhat crowded. |
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211 | |
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212 | The point of an image viewer is viewing images, not a nice GUI. This is |
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213 | similar to XV's behaviour. |
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214 | |
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215 | =item * efficient (and hard to learn) user interface |
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216 | |
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217 | CV uses key combinations. A lot. If you are an experienced XV user, you |
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218 | will find most of these keys familiar. If not, CV might be hard to use at |
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219 | first, but will be an efficient tool later. |
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220 | |
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221 | =item * multi-window GUI |
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222 | |
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223 | CV doesn't force you to use a specific layout, instead it relies on your |
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224 | window manager, thus enabling you to chose whatever layout that suits you |
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225 | most. |
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226 | |
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227 | =item * i18n'ed filename handling throughout |
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228 | |
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229 | As long as glib can recognize your filename encoding (either UTF-8 or |
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230 | locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you |
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231 | have the relevant fonts, CV will display your filenames correctly. |
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232 | |
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233 | =item * extensible through plug-ins |
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234 | |
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235 | I have weird plug-ins that access remote databases to find a |
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236 | directory. This is not likely to be of any use to other people. Likewise, |
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237 | others might have weird requirements I cannot dream of. |
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238 | |
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239 | =item * filename clustering |
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240 | |
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241 | Among the standard plug-ins is a filename clustering plug-in, that (in |
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242 | case of tens of thousands images in one directory) might be able to |
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243 | cluster similar names together. |
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244 | |
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245 | =back |
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246 | |
151 | =head1 DESCRIPTION |
247 | =head1 DESCRIPTION |
152 | |
248 | |
153 | None yet. |
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154 | |
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155 | =head2 THE IMAGE WINDOW |
249 | =head2 THE IMAGE WINDOW |
156 | |
250 | |
157 | You can use the following keys in the image window: |
251 | You can use the following keys in the image window: |
158 | |
252 | |
159 | q quit the program |
253 | q quit the program |
160 | < half the image size |
254 | < half the image size |
161 | > double the image size |
255 | > double the image size |
162 | , shrink the image by 10% |
256 | , shrink the image by 10% |
163 | . enlarge the image by 10% |
257 | . enlarge the image by 10% |
164 | n reset to normal size |
258 | n reset to normal size |
165 | m maximize to screensize |
259 | m maximize to screensize |
166 | M maxime to screensize, respecting image aspect |
260 | M maximize to screensize, respecting image aspect |
167 | ctrl-m toggle maxpect-always mode |
261 | ctrl-m toggle maxpect-always mode |
168 | u uncrop |
262 | u uncrop |
169 | r set scaling mode to 'nearest' (fastest) |
263 | r set scaling mode to 'nearest' (fastest) |
170 | s set scaling mode to 'bilinear' (default) |
264 | s set scaling mode to 'bilinear' (default) |
171 | S set scaling mode to 'hyper' (slowest) |
265 | shift-s set scaling mode to 'hyper' (slowest) |
172 | t rotate clockwise 90° |
266 | t rotate clockwise 90° |
173 | T rotate counterclockwise° |
267 | T rotate counterclockwise° |
174 | ctrl-v open a new visual schnauzer window for the current dir |
268 | ctrl-v open a new visual schnauzer window for the current dir |
175 | ctrl-s rescan visual schnauzer files for updates/deletes etc. |
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176 | ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image. |
269 | ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image |
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270 | ctrl-p fire up the print dialog |
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271 | escape cancel a crop action |
177 | |
272 | |
178 | And when playing movies, these additional keys are active: |
273 | And when playing movies, these additional keys are active: |
179 | |
274 | |
180 | left rewind by 10 seconds |
275 | left rewind by 10 seconds |
181 | right forward by 10 seconds |
276 | right forward by 10 seconds |
182 | down rewind by 60 seconds |
277 | down rewind by 60 seconds |
183 | up forward by 60 seconds |
278 | up forward by 60 seconds |
184 | pg_up rewind by 600 seconds |
279 | pg_up rewind by 600 seconds |
185 | pg_down forward by 600 seconds |
280 | pg_down forward by 600 seconds |
186 | o toggle on-screen display |
281 | o toggle on-screen display |
187 | p pause/unpause |
282 | p pause/unpause |
188 | escape stop playing |
283 | escape stop playing |
189 | 9 turn volume down |
284 | 9 turn volume down |
190 | 0 turn volume up |
285 | 0 turn volume up |
191 | |
286 | |
192 | The following keys are redirected to the default visual schnauzer window: |
287 | Any other keys will be sent to the default schnauzer window, which can be |
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288 | toggled on and off by right-clicking into the image window. |
193 | |
289 | |
194 | space next image |
290 | Left-clicking into the image window will let you crop the image (usually |
195 | backspace last image |
291 | to zoom into large images that CV scales down). |
196 | |
292 | |
197 | =head2 THE VISUAL SCHNAUZER |
293 | =head2 THE VISUAL SCHNAUZER |
198 | |
294 | |
199 | You can use the following keys in the schnauzer window: |
295 | You can use the following keys in the schnauzer window: |
200 | |
296 | |
|
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297 | ctrl-space, |
201 | space move to and display next image |
298 | space move to and display next image |
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299 | ctrl-backspace, |
202 | backspace move to and display previous image |
300 | backspace move to and display previous image |
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301 | ctrl-return, |
203 | return display selected picture |
302 | return display selected picture, or enter directory |
204 | |
303 | |
205 | cursor keys move selection |
304 | cursor keys move selection |
206 | page-up move one page up |
305 | page-up move one page up |
207 | page-down move one page down |
306 | page-down move one page down |
208 | home move to first file |
307 | home move to first file |
209 | end move to last file |
308 | end move to last file |
210 | |
309 | |
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310 | ctrl-a select all files |
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311 | ctrl-shift-a select all files currently displayed in the schnauzer window |
211 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
312 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
212 | ctrl-g generate icons for the selected files |
313 | ctrl-g force generation of thumbnais for the selected files |
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314 | ctrl-s rescan current direcory or files updates/deletes etc. |
213 | ctrl-u update selected (or all) icons if neccessary |
315 | ctrl-u update selected (or all) icons if neccessary |
214 | ctrl-a select all files |
316 | ctrl-l don't use, will become a plug-in eventually |
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317 | |
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318 | ^ go to parent directory (caret). |
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319 | |
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320 | 0-9, |
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321 | a-z find the first filename beginning with this letter |
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322 | |
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323 | Right-clicking into the schnauzer window displays a pop-up menu with |
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324 | additional actions. |
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325 | |
|
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326 | =head1 FILES |
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327 | |
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328 | When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if |
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329 | it were a perl script. in that, you will mostly load plug-ins. |
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330 | |
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331 | Example: |
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332 | |
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333 | system "fping -q -t 10 ether" |
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334 | or require "/fs/cv/cvplugin.pl"; |
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335 | |
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336 | This will load a plug-in, but only if the machine I<ether> is reachable |
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337 | (supposedly the plug-in is networked in some way :). |
215 | |
338 | |
216 | =head1 ENVIRONMENT |
339 | =head1 ENVIRONMENT |
217 | |
340 | |
218 | =over 4 |
341 | =over 4 |
219 | |
342 | |
… | |
… | |
233 | |
356 | |
234 | =back |
357 | =back |
235 | |
358 | |
236 | =head1 SECURITY CONSIDERATIONS |
359 | =head1 SECURITY CONSIDERATIONS |
237 | |
360 | |
238 | CV uses Pixbuf to load images. Pixbuf is not considered safe for this |
361 | CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for |
239 | purpose, though (from the gtk-2.2 release notes): |
362 | this purpose, though (from the gtk-2.2 release notes): |
240 | |
363 | |
241 | "While efforts have been made to make gdk-pixbuf robust against invalid |
364 | "While efforts have been made to make gdk-pixbuf robust against invalid |
242 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
365 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
243 | the likelyhood that there are additional problems where an invalid image |
366 | the likelyhood that there are additional problems where an invalid image |
244 | could cause gdk-pixbuf to crash or worse." |
367 | could cause gdk-pixbuf to crash or worse." |
245 | |
368 | |
246 | =head1 BUGS/TODO |
369 | =head1 BUGS/TODO |
247 | |
370 | |
|
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371 | Lots of functionality is missing. |
|
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372 | |
248 | Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names |
373 | Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with |
249 | incompatible with utf-8 fails. |
374 | names incompatible with utf-8 might fail. |
250 | |
375 | |
251 | rotate on disk |
376 | rotate on disk |
252 | print |
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253 | lots of ui issues |
377 | lots of ui issues |
254 | save(?) |
378 | save(?) |
255 | preferences |
379 | preferences |
256 | ctrl-u in schnauzer |
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257 | shift-cursor in schnauzer |
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258 | |
380 | |
259 | =head1 AUTHOR |
381 | =head1 AUTHOR |
260 | |
382 | |
261 | Marc Lehmann <cv@plan9.de>. |
383 | Marc Lehmann <cv@plan9.de>. |
262 | |
384 | |