… | |
… | |
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 | |
|
|
9 | use Gtk2::CV; |
|
|
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 | |
25 | |
… | |
… | |
32 | (File::Spec->splitpath ($_[1]))[2], |
40 | (File::Spec->splitpath ($_[1]))[2], |
33 | -s $_[1]; |
41 | -s $_[1]; |
34 | $info->set_label ($label); |
42 | $info->set_label ($label); |
35 | $viewer->load_image ($_[1]); |
43 | $viewer->load_image ($_[1]); |
36 | }); |
44 | }); |
37 | $s->signal_connect (chdir => sub { |
|
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38 | my ($self, $dir) = @_; |
|
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39 | |
45 | |
40 | my $path = Cwd::abs_path $dir; |
46 | Gtk2::CV::Plugin->call (new_schnauzer => $s); |
41 | |
47 | |
42 | $self->realize; |
|
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43 | $self->window->property_change ( |
|
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44 | Gtk2::Gdk::Atom->intern ("_X_CWD", 0), |
|
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45 | Gtk2::Gdk::Atom->intern ("UTF8_STRING", 0), |
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46 | Gtk2::Gdk::CHARS, 'replace', |
|
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47 | Encode::encode_utf8 $path, |
|
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48 | ); |
|
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49 | }); |
|
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50 | |
|
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51 | $s; |
48 | $s |
52 | } |
49 | } |
53 | |
50 | |
54 | sub std_keys { |
51 | sub std_keys { |
55 | my $key = $_[1]->keyval; |
52 | my $key = $_[1]->keyval; |
56 | my $state = $_[1]->state; |
53 | my $state = $_[1]->state; |
… | |
… | |
84 | $h->load_string (do { local $/; <DATA> }); |
81 | $h->load_string (do { local $/; <DATA> }); |
85 | } |
82 | } |
86 | |
83 | |
87 | $help->show_all; |
84 | $help->show_all; |
88 | } else { |
85 | } else { |
89 | #$mainwin->show_all; |
86 | return 0; |
90 | $schnauzer->handle_key ($key, $state); |
|
|
91 | } |
87 | } |
92 | |
88 | |
93 | 1; |
89 | 1 |
94 | } |
90 | } |
95 | |
91 | |
96 | { |
92 | { |
97 | $viewer = new Gtk2::CV::ImageWindow; |
93 | $viewer = new Gtk2::CV::ImageWindow; |
98 | |
94 | |
99 | $viewer->set_title ("CV: Image"); |
95 | $viewer->set_title ("CV: Image"); |
100 | |
96 | |
101 | $viewer->signal_connect (key_press_event => \&std_keys); |
97 | $viewer->signal_connect (key_press_event => sub { |
|
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98 | &std_keys |
|
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99 | or $schnauzer->signal_emit (key_press_event => $_[1]) |
|
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100 | }); |
102 | $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); |
101 | $viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); |
103 | |
102 | |
104 | $viewer->signal_connect (button3_press_event => sub { |
103 | $viewer->signal_connect (button3_press_event => sub { |
105 | $mainwin->visible |
104 | $mainwin->visible |
106 | ? $mainwin->hide |
105 | ? $mainwin->hide |
107 | : $mainwin->show_all; |
106 | : $mainwin->show_all; |
108 | 1; |
107 | 1 |
109 | }); |
108 | }); |
|
|
109 | |
|
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110 | Gtk2::CV::Plugin->call (new_imagewindow => $viewer); |
110 | |
111 | |
111 | $schnauzer = new_schnauzer; |
112 | $schnauzer = new_schnauzer; |
112 | |
113 | |
113 | $mainwin = new Gtk2::Window; |
114 | $mainwin = new Gtk2::Window; |
114 | $mainwin->set_title ("CV"); |
115 | $mainwin->set_title ("CV"); |
115 | $mainwin->add (my $vbox = new Gtk2::VBox); |
116 | $mainwin->add (my $vbox = new Gtk2::VBox); |
116 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; }); |
117 | $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 }); |
117 | |
118 | |
118 | $vbox->add ($schnauzer); |
119 | $vbox->add ($schnauzer); |
119 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
120 | $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0); |
120 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
121 | $frame->add (my $hbox = new Gtk2::HBox 0, 0); |
121 | $hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0); |
122 | $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0); |
122 | $hbox->pack_start (($info = new Gtk2::Label), 1, 1, 0); |
123 | $hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0); |
123 | $info->set (wrap => 1); |
124 | $labelwindow->add ($info = new Gtk2::Label); |
|
|
125 | $labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 }); |
|
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126 | $info->set (selectable => 1, xalign => 0, justify => "left"); |
124 | |
127 | |
125 | $schnauzer->set_geometry_hints; |
128 | $schnauzer->set_geometry_hints; |
126 | } |
129 | } |
127 | |
130 | |
128 | 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) |
129 | $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
134 | : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]); |
130 | $schnauzer->show_all; |
135 | $schnauzer->show_all; |
131 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
136 | $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []); |
132 | } else { |
137 | } else { |
133 | $schnauzer->set_dir (File::Spec->curdir); |
138 | $schnauzer->set_dir (File::Spec->curdir); |
134 | $mainwin->show_all; |
139 | $mainwin->show_all; |
135 | $viewer->show_all; |
|
|
136 | } |
140 | } |
137 | |
141 | |
138 | $viewer->show_all; |
142 | $viewer->show_all; |
139 | |
143 | |
140 | main Gtk2; |
144 | main Gtk2; |
141 | |
145 | |
142 | __DATA__ |
146 | __DATA__ |
143 | |
147 | |
144 | =head1 NAME |
148 | =head1 NAME |
145 | |
149 | |
146 | cv - a fast gtk+ image viewer modeled after xv |
150 | cv - a fast gtk+ image viewer loosely modeled after XV |
147 | |
151 | |
148 | =head1 SYNOPSIS |
152 | =head1 SYNOPSIS |
149 | |
153 | |
150 | cv [file...] |
154 | cv [file...] |
151 | |
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 | |
152 | =head1 DESCRIPTION |
247 | =head1 DESCRIPTION |
153 | |
248 | |
154 | None yet. |
|
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155 | |
|
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156 | =head2 THE IMAGE WINDOW |
249 | =head2 THE IMAGE WINDOW |
157 | |
250 | |
158 | You can use the following keys in the image window: |
251 | You can use the following keys in the image window: |
159 | |
252 | |
160 | q quit the program |
253 | q quit the program |
161 | < half the image size |
254 | < half the image size |
162 | > double the image size |
255 | > double the image size |
163 | , shrink the image by 10% |
256 | , shrink the image by 10% |
164 | . enlarge the image by 10% |
257 | . enlarge the image by 10% |
165 | n reset to normal size |
258 | n reset to normal size |
166 | m maximize to screensize |
259 | m maximize to screensize |
167 | M maxime to screensize, respecting image aspect |
260 | M maximize to screensize, respecting image aspect |
168 | ctrl-m toggle maxpect-always mode |
261 | ctrl-m toggle maxpect-always mode |
169 | u uncrop |
262 | u uncrop |
170 | r set scaling mode to 'nearest' (fastest) |
263 | r set scaling mode to 'nearest' (fastest) |
171 | s set scaling mode to 'bilinear' (default) |
264 | s set scaling mode to 'bilinear' (default) |
172 | S set scaling mode to 'hyper' (slowest) |
265 | shift-s set scaling mode to 'hyper' (slowest) |
173 | t rotate clockwise 90° |
266 | t rotate clockwise 90° |
174 | T rotate counterclockwise° |
267 | T rotate counterclockwise° |
175 | 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 |
176 | ctrl-s rescan visual schnauzer files for updates/deletes etc. |
|
|
177 | 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 |
|
|
270 | ctrl-p fire up the print fialog |
|
|
271 | escape cancel a crop action |
178 | |
272 | |
179 | And when playing movies, these additional keys are active: |
273 | And when playing movies, these additional keys are active: |
180 | |
274 | |
181 | left rewind by 10 seconds |
275 | left rewind by 10 seconds |
182 | right forward by 10 seconds |
276 | right forward by 10 seconds |
183 | down rewind by 60 seconds |
277 | down rewind by 60 seconds |
184 | up forward by 60 seconds |
278 | up forward by 60 seconds |
185 | pg_up rewind by 600 seconds |
279 | pg_up rewind by 600 seconds |
186 | pg_down forward by 600 seconds |
280 | pg_down forward by 600 seconds |
187 | o toggle on-screen display |
281 | o toggle on-screen display |
188 | p pause/unpause |
282 | p pause/unpause |
189 | escape stop playing |
283 | escape stop playing |
190 | 9 turn volume down |
284 | 9 turn volume down |
191 | 0 turn volume up |
285 | 0 turn volume up |
192 | |
286 | |
193 | 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 |
|
|
288 | toggled on and off by right-clicking into the image window. |
194 | |
289 | |
195 | space next image |
290 | Left-clicking into the image window will let you crop the image (usually |
196 | backspace last image |
291 | to zoom into large images that CV scales down). |
197 | |
292 | |
198 | =head2 THE VISUAL SCHNAUZER |
293 | =head2 THE VISUAL SCHNAUZER |
199 | |
294 | |
200 | You can use the following keys in the schnauzer window: |
295 | You can use the following keys in the schnauzer window: |
201 | |
296 | |
|
|
297 | ctrl-space, |
202 | space move to and display next image |
298 | space move to and display next image |
|
|
299 | ctrl-backspace, |
203 | backspace move to and display previous image |
300 | backspace move to and display previous image |
|
|
301 | ctrl-return, |
204 | return display selected picture |
302 | return display selected picture, or enter directory |
205 | |
303 | |
206 | cursor keys move selection |
304 | cursor keys move selection |
207 | page-up move one page up |
305 | page-up move one page up |
208 | page-down move one page down |
306 | page-down move one page down |
209 | home move to first file |
307 | home move to first file |
210 | end move to last file |
308 | end move to last file |
211 | |
309 | |
|
|
310 | ctrl-a select all files |
|
|
311 | ctrl-shift-a select all files currently displayed in the schnauzer window |
212 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
312 | ctrl-d delete selected files WITHOUT ASKING AGAIN |
213 | ctrl-g generate icons for the selected files |
313 | ctrl-g force generation of thumbnais for the selected files |
|
|
314 | ctrl-s rescan current direcory or files updates/deletes etc. |
214 | ctrl-u update selected (or all) icons if neccessary |
315 | ctrl-u update selected (or all) icons if neccessary |
215 | ctrl-a select all files |
316 | ctrl-l don't use, will become a plug-in eventually |
|
|
317 | |
|
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318 | 0-9, |
|
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319 | a-z find the first filename beginning with this letter |
|
|
320 | |
|
|
321 | Right-clicking into the schnauzer window displays a pop-up menu with |
|
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322 | additional actions. |
|
|
323 | |
|
|
324 | =head1 FILES |
|
|
325 | |
|
|
326 | When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if |
|
|
327 | it were a perl script. in that, you will mostly load plug-ins. |
|
|
328 | |
|
|
329 | Example: |
|
|
330 | |
|
|
331 | system "fping -q -t 10 ether" |
|
|
332 | or require "/fs/cv/cvplugin.pl"; |
|
|
333 | |
|
|
334 | This will load a plug-in, but only if the machine I<ether> is reachable |
|
|
335 | (supposedly the plug-in is networked in some way :). |
216 | |
336 | |
217 | =head1 ENVIRONMENT |
337 | =head1 ENVIRONMENT |
218 | |
338 | |
219 | =over 4 |
339 | =over 4 |
220 | |
340 | |
… | |
… | |
234 | |
354 | |
235 | =back |
355 | =back |
236 | |
356 | |
237 | =head1 SECURITY CONSIDERATIONS |
357 | =head1 SECURITY CONSIDERATIONS |
238 | |
358 | |
239 | CV uses Pixbuf to load images. Pixbuf is not considered safe for this |
359 | CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for |
240 | purpose, though (from the gtk-2.2 release notes): |
360 | this purpose, though (from the gtk-2.2 release notes): |
241 | |
361 | |
242 | "While efforts have been made to make gdk-pixbuf robust against invalid |
362 | "While efforts have been made to make gdk-pixbuf robust against invalid |
243 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
363 | images, using gdk-pixbuf to load untrusted data is not recommended, due to |
244 | the likelyhood that there are additional problems where an invalid image |
364 | the likelyhood that there are additional problems where an invalid image |
245 | could cause gdk-pixbuf to crash or worse." |
365 | could cause gdk-pixbuf to crash or worse." |
246 | |
366 | |
247 | =head1 BUGS/TODO |
367 | =head1 BUGS/TODO |
248 | |
368 | |
|
|
369 | Lots of functionality is missing. |
|
|
370 | |
249 | Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names |
371 | Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with |
250 | incompatible with utf-8 fails. |
372 | names incompatible with utf-8 might fail. |
251 | |
373 | |
252 | rotate on disk |
374 | rotate on disk |
253 | print |
|
|
254 | lots of ui issues |
375 | lots of ui issues |
255 | save(?) |
376 | save(?) |
256 | preferences |
377 | preferences |
257 | ctrl-u in schnauzer |
|
|
258 | shift-cursor in schnauzer |
|
|
259 | |
378 | |
260 | =head1 AUTHOR |
379 | =head1 AUTHOR |
261 | |
380 | |
262 | Marc Lehmann <cv@plan9.de>. |
381 | Marc Lehmann <cv@plan9.de>. |
263 | |
382 | |