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1 | =encoding utf8 |
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2 | |
1 | =head1 NAME |
3 | =head1 NAME |
2 | |
4 | |
3 | rxvtperl - rxvt-unicode's embedded perl interpreter |
5 | @@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
4 | |
6 | |
5 | =head1 SYNOPSIS |
7 | =head1 SYNOPSIS |
6 | |
8 | |
7 | * Put your scripts into F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, they will be loaded automatically. |
9 | # create a file grab_test in $HOME: |
8 | |
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9 | * Each script will only be loaded once, even in urxvtd, and will be valid |
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10 | globally. |
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11 | |
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12 | * Scripts are evaluated in a 'use strict' and 'use utf8' environment, and |
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13 | thus must be encoded as UTF-8. |
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14 | |
10 | |
15 | sub on_sel_grab { |
11 | sub on_sel_grab { |
16 | warn "you selected ", $_[0]->selection; |
12 | warn "you selected ", $_[0]->selection; |
17 | () |
13 | () |
18 | } |
14 | } |
19 | |
15 | |
20 | 1 |
16 | # start a @@RXVT_NAME@@ using it: |
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17 | |
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18 | @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
21 | |
19 | |
22 | =head1 DESCRIPTION |
20 | =head1 DESCRIPTION |
23 | |
21 | |
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22 | Everytime a terminal object gets created, scripts specified via the |
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23 | C<perl> resource are loaded and associated with it. |
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24 | |
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25 | Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
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26 | thus must be encoded as UTF-8. |
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27 | |
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28 | Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
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29 | scripts will be shared (but not enabled) for all terminals. |
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30 | |
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31 | =head2 Prepackaged Extensions |
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32 | |
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33 | This section describes the extensiosn delivered with this version. You can |
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34 | find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
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35 | |
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36 | You can activate them like this: |
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37 | |
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38 | @@RXVT_NAME@@ -pe <extensionname> |
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39 | |
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40 | =over 4 |
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41 | |
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42 | =item selection |
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43 | |
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44 | Intelligent selection. This etxension tries to be more intelligent when the user |
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45 | extends selections (double-click). |
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46 | |
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47 | It also offers the following bindable event: |
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48 | |
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49 | =over 4 |
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50 | |
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51 | =item rot13 |
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52 | |
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53 | Rot-13 the selection when activated. Used via keyboard trigger: |
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54 | |
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55 | URxvt.keysym.C-M-r: perl:selection:rot13 |
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56 | |
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57 | =back |
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58 | |
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59 | =item digital-clock |
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60 | |
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61 | Displays a digital clock using the built-in overlay. |
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62 | |
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63 | =item example-refresh-hooks |
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64 | |
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65 | Displays a very simple digital clock in the upper right corner of the |
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66 | window. Illustrates overwriting the refresh callbacks to create your own |
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67 | overlays or changes. |
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68 | |
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69 | =back |
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70 | |
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71 | =head2 General API Considerations |
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72 | |
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73 | All objects (such as terminals, time watchers etc.) are typical |
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74 | reference-to-hash objects. The hash can be used to store anything you |
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75 | like. All members starting with an underscore (such as C<_ptr> or |
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76 | C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
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77 | modified). |
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78 | |
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79 | When objects are destroyed on the C++ side, the perl object hashes are |
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80 | emptied, so its best to store related objects such as time watchers and |
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81 | the like inside the terminal object so they get destroyed as soon as the |
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82 | terminal is destroyed. |
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83 | |
24 | =head2 Hooks |
84 | =head2 Hooks |
25 | |
85 | |
26 | The following subroutines can be declared in loaded scripts, and will be called |
86 | The following subroutines can be declared in loaded scripts, and will be |
27 | whenever the relevant event happens. |
87 | called whenever the relevant event happens. |
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88 | |
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89 | The first argument passed to them is an object private to each terminal |
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90 | and extension package. You can call all C<urxvt::term> methods on it, but |
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91 | its not a real C<urxvt::term> object. Instead, the real C<urxvt::term> |
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92 | object that is shared between all packages is stored in the C<term> |
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93 | member. |
28 | |
94 | |
29 | All of them must return a boolean value. If it is true, then the event |
95 | All of them must return a boolean value. If it is true, then the event |
30 | counts as being I<consumed>, and the invocation of other hooks is skipped, |
96 | counts as being I<consumed>, and the invocation of other hooks is skipped, |
31 | and the relevant action might not be carried out by the C++ code. |
97 | and the relevant action might not be carried out by the C++ code. |
32 | |
98 | |
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64 | Called whenever a selection has been copied, but before the selection is |
130 | Called whenever a selection has been copied, but before the selection is |
65 | requested from the server. The selection text can be queried and changed |
131 | requested from the server. The selection text can be queried and changed |
66 | by calling C<< $term->selection >>. |
132 | by calling C<< $term->selection >>. |
67 | |
133 | |
68 | Returning a true value aborts selection grabbing. It will still be hilighted. |
134 | Returning a true value aborts selection grabbing. It will still be hilighted. |
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135 | |
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136 | =item on_sel_extend $term |
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137 | |
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138 | Called whenever the user tries to extend the selection (e.g. with a double |
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139 | click) and is either supposed to return false (normal operation), or |
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140 | should extend the selection itelf and return true to suppress the built-in |
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141 | processing. |
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142 | |
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143 | See the F<selection> example extension. |
69 | |
144 | |
70 | =item on_focus_in $term |
145 | =item on_focus_in $term |
71 | |
146 | |
72 | Called whenever the window gets the keyboard focus, before urxvt does |
147 | Called whenever the window gets the keyboard focus, before urxvt does |
73 | focus in processing. |
148 | focus in processing. |
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… | |
106 | |
181 | |
107 | =item on_refresh_end $term |
182 | =item on_refresh_end $term |
108 | |
183 | |
109 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
184 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
110 | |
185 | |
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186 | =item on_keyboard_command $term, $string |
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187 | |
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188 | Called whenever the user presses a key combination that has a |
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189 | C<perl:string> action bound to it (see description of the B<keysym> |
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190 | resource in the @@RXVT_NAME@@(1) manpage). |
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191 | |
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192 | =back |
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193 | |
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194 | =head2 Variables in the C<urxvt> Package |
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195 | |
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196 | =over 4 |
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197 | |
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198 | =item $urxvt::TERM |
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199 | |
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200 | The current terminal. Whenever a callback/Hook is bein executed, this |
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201 | variable stores the current C<urxvt::term> object. |
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202 | |
111 | =back |
203 | =back |
112 | |
204 | |
113 | =head2 Functions in the C<urxvt> Package |
205 | =head2 Functions in the C<urxvt> Package |
114 | |
206 | |
115 | =over 4 |
207 | =over 4 |
… | |
… | |
120 | costs! The only time this is acceptable is when the terminal process |
212 | costs! The only time this is acceptable is when the terminal process |
121 | starts up. |
213 | starts up. |
122 | |
214 | |
123 | =item urxvt::warn $string |
215 | =item urxvt::warn $string |
124 | |
216 | |
125 | Calls C<rxvt_warn> witht eh given string which should not include a |
217 | Calls C<rxvt_warn> with the given string which should not include a |
126 | newline. The module also overwrites the C<warn> builtin with a function |
218 | newline. The module also overwrites the C<warn> builtin with a function |
127 | that calls this function. |
219 | that calls this function. |
128 | |
220 | |
129 | Using this function has the advantage that its output ends up in the |
221 | Using this function has the advantage that its output ends up in the |
130 | correct place, e.g. on stderr of the connecting urxvtc client. |
222 | correct place, e.g. on stderr of the connecting urxvtc client. |
131 | |
223 | |
132 | =item $cellwidth = urxvt::wcswidth $string |
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133 | |
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134 | Returns the number of screen-cells this string would need. Correctly |
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135 | accounts for wide and combining characters. |
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136 | |
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137 | =item $time = urxvt::NOW |
224 | =item $time = urxvt::NOW |
138 | |
225 | |
139 | Returns the "current time" (as per the event loop). |
226 | Returns the "current time" (as per the event loop). |
140 | |
227 | |
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228 | =back |
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229 | |
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230 | =head2 RENDITION |
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231 | |
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232 | Rendition bitsets contain information about colour, font, font styles and |
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233 | similar information for each screen cell. |
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234 | |
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235 | The following "macros" deal with changes in rendition sets. You should |
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236 | never just create a bitset, you should always modify an existing one, |
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237 | as they contain important information required for correct operation of |
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238 | rxvt-unicode. |
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239 | |
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240 | =over 4 |
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241 | |
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242 | =item $rend = urxvt::DEFAULT_RSTYLE |
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243 | |
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244 | Returns the default rendition, as used when the terminal is starting up or |
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245 | being reset. Useful as a base to start when creating renditions. |
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246 | |
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247 | =item $rend = urxvt::OVERLAY_RSTYLE |
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248 | |
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249 | Return the rendition mask used for overlays by default. |
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250 | |
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251 | =item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
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252 | |
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253 | Return the bit that enabled bold, italic, blink, reverse-video and |
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254 | underline, respectively. To enable such a style, just logically OR it into |
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255 | the bitset. |
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256 | |
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257 | =item $foreground = urxvt::GET_BASEFG $rend |
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258 | |
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259 | =item $background = urxvt::GET_BASEBG $rend |
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260 | |
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261 | Return the foreground/background colour index, respectively. |
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262 | |
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263 | =item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) |
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264 | |
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265 | =item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) |
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266 | |
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267 | Replace the foreground/background colour in the rendition mask with the |
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268 | specified one. |
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269 | |
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270 | =item $value = urxvt::GET_CUSTOM ($rend) |
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271 | |
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272 | Return the "custom" value: Every rendition has 5 bits for use by |
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273 | extensions. They can be set and changed as you like and are initially |
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274 | zero. |
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275 | |
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276 | =item $rend = urxvt::SET_CUSTOM ($rend, $new_value) |
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277 | |
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278 | Change the custom value. |
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279 | |
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280 | =back |
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281 | |
141 | =cut |
282 | =cut |
142 | |
283 | |
143 | package urxvt; |
284 | package urxvt; |
144 | |
285 | |
145 | use strict; |
286 | use strict; |
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287 | use Scalar::Util (); |
146 | |
288 | |
147 | our $term; |
289 | our $TERM; |
148 | our @HOOKNAME; |
290 | our @HOOKNAME; |
149 | our $LIBDIR; |
291 | our $LIBDIR; |
150 | |
292 | |
151 | BEGIN { |
293 | BEGIN { |
152 | urxvt->bootstrap; |
294 | urxvt->bootstrap; |
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158 | unless $msg =~ /\n$/; |
300 | unless $msg =~ /\n$/; |
159 | urxvt::warn ($msg); |
301 | urxvt::warn ($msg); |
160 | }; |
302 | }; |
161 | } |
303 | } |
162 | |
304 | |
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305 | my @hook_count; |
163 | my $verbosity = $ENV{URXVT_PERL_VERBOSITY} || 10; |
306 | my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
164 | |
307 | |
165 | sub verbose { |
308 | sub verbose { |
166 | my ($level, $msg) = @_; |
309 | my ($level, $msg) = @_; |
167 | warn "$msg\n"; #d# |
310 | warn "$msg\n" if $level <= $verbosity; |
168 | } |
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169 | |
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170 | my @invoke_cb; |
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171 | |
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172 | # called by the rxvt core |
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173 | sub invoke { |
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174 | local $term = shift; |
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175 | my $htype = shift; |
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176 | |
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177 | my $cb = $invoke_cb[$htype]; |
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178 | |
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179 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" |
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180 | if $verbosity >= 10; |
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181 | |
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182 | while (my ($k, $v) = each %$cb) { |
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183 | return 1 if $v->($term, @_); |
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184 | } |
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185 | |
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186 | 0 |
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187 | } |
311 | } |
188 | |
312 | |
189 | # find on_xxx subs in the package and register them |
313 | # find on_xxx subs in the package and register them |
190 | # as hooks |
314 | # as hooks |
191 | sub register_package($) { |
315 | sub register_package($) { |
192 | my ($pkg) = @_; |
316 | my ($pkg) = @_; |
193 | |
317 | |
194 | for my $hook (0.. $#HOOKNAME) { |
318 | for my $htype (0.. $#HOOKNAME) { |
195 | my $name = $HOOKNAME[$hook]; |
319 | my $name = $HOOKNAME[$htype]; |
196 | |
320 | |
197 | my $ref = $pkg->can ("on_" . lc $name) |
321 | my $ref = $pkg->can ("on_" . lc $name) |
198 | or next; |
322 | or next; |
199 | |
323 | |
200 | $invoke_cb[$hook]{$ref*1} = $ref; |
324 | $TERM->{_hook}[$htype]{$pkg} = $ref; |
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325 | $hook_count[$htype]++ |
201 | set_should_invoke $hook, 1; |
326 | or set_should_invoke $htype, 1; |
202 | } |
327 | } |
203 | } |
328 | } |
204 | |
329 | |
205 | my $script_pkg = "script0000"; |
330 | my $script_pkg = "script0000"; |
206 | my %script_pkg; |
331 | my %script_pkg; |
207 | |
332 | |
208 | # load a single script into its own package, once only |
333 | # load a single script into its own package, once only |
209 | sub load_script($) { |
334 | sub script_package($) { |
210 | my ($path) = @_; |
335 | my ($path) = @_; |
211 | |
336 | |
212 | $script_pkg{$path} ||= do { |
337 | $script_pkg{$path} ||= do { |
213 | my $pkg = $script_pkg++; |
338 | my $pkg = "urxvt::" . ($script_pkg++); |
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339 | |
214 | verbose 3, "loading script '$path' into package '$pkg'"; |
340 | verbose 3, "loading script '$path' into package '$pkg'"; |
215 | |
341 | |
216 | open my $fh, "<:raw", $path |
342 | open my $fh, "<:raw", $path |
217 | or die "$path: $!"; |
343 | or die "$path: $!"; |
218 | |
344 | |
219 | eval "package $pkg; use strict; use utf8;\n" |
345 | my $source = "package $pkg; use strict; use utf8;\n" |
220 | . "#line 1 \"$path\"\n" |
346 | . "#line 1 \"$path\"\n{\n" |
221 | . do { local $/; <$fh> } |
347 | . (do { local $/; <$fh> }) |
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348 | . "\n};\n1"; |
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349 | |
222 | or die "$path: $@"; |
350 | eval $source or die "$path: $@"; |
223 | |
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224 | register_package $pkg; |
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225 | |
351 | |
226 | $pkg |
352 | $pkg |
227 | }; |
353 | } |
228 | } |
354 | } |
229 | |
355 | |
230 | load_script $_ for grep -f $_, <$LIBDIR/perl-ext/*>; |
356 | # called by the rxvt core |
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357 | sub invoke { |
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358 | local $TERM = shift; |
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359 | my $htype = shift; |
231 | |
360 | |
232 | =back |
361 | if ($htype == 0) { # INIT |
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362 | my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
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363 | |
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364 | for my $ext (split /:/, $TERM->resource ("perl_ext")) { |
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365 | my @files = grep -f $_, map "$_/$ext", @dirs; |
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366 | |
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367 | if (@files) { |
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368 | register_package script_package $files[0]; |
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369 | } else { |
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370 | warn "perl extension '$ext' not found in perl library search path\n"; |
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371 | } |
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372 | } |
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373 | |
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374 | } elsif ($htype == 1) { # DESTROY |
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375 | if (my $hook = $TERM->{_hook}) { |
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376 | for my $htype (0..$#$hook) { |
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377 | $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
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378 | or set_should_invoke $htype, 0; |
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379 | } |
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380 | } |
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381 | } |
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382 | |
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383 | my $cb = $TERM->{_hook}[$htype] |
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384 | or return; |
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385 | |
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386 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
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387 | if $verbosity >= 10; |
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388 | |
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389 | while (my ($pkg, $cb) = each %$cb) { |
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390 | return 1 |
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391 | if $cb->( |
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392 | $TERM->{$pkg} ||= do { |
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393 | my $proxy = bless { }, urxvt::term::proxy::; |
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394 | Scalar::Util::weaken ($proxy->{term} = $TERM); |
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395 | $proxy |
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396 | }, |
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397 | @_, |
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398 | ); |
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399 | } |
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400 | |
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401 | 0 |
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402 | } |
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403 | |
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404 | sub urxvt::term::proxy::AUTOLOAD { |
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405 | $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ |
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406 | or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; |
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407 | |
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408 | eval qq{ |
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409 | sub $urxvt::term::proxy::AUTOLOAD { |
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410 | unshift \@_, shift->{term}; |
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411 | goto &urxvt::term::$1; |
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412 | } |
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413 | 1 |
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414 | } or die "FATAL: unable to compile method forwarder: $@"; |
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415 | |
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416 | goto &$urxvt::term::proxy::AUTOLOAD; |
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417 | } |
233 | |
418 | |
234 | =head2 The C<urxvt::term> Class |
419 | =head2 The C<urxvt::term> Class |
235 | |
420 | |
236 | =over 4 |
421 | =over 4 |
237 | |
422 | |
… | |
… | |
249 | as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
434 | as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
250 | likely change). |
435 | likely change). |
251 | |
436 | |
252 | Please note that resource strings will currently only be freed when the |
437 | Please note that resource strings will currently only be freed when the |
253 | terminal is destroyed, so changing options frequently will eat memory. |
438 | terminal is destroyed, so changing options frequently will eat memory. |
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439 | |
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440 | Here is a a likely non-exhaustive list of resource names, not all of which |
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441 | are supported in every build, please see the source to see the actual |
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442 | list: |
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443 | |
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444 | answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
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445 | borderLess color cursorBlink cursorUnderline cutchars delete_key |
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446 | display_name embed ext_bwidth fade font geometry hold iconName |
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447 | imFont imLocale inputMethod insecure int_bwidth intensityStyles |
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448 | italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
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449 | mouseWheelScrollPage name pastableTabs path perl_eval perl_ext |
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450 | perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
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451 | reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
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452 | scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
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453 | scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
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454 | shade term_name title transparent transparent_all tripleclickwords |
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455 | utmpInhibit visualBell |
254 | |
456 | |
255 | =cut |
457 | =cut |
256 | |
458 | |
257 | sub urxvt::term::resource($$;$) { |
459 | sub urxvt::term::resource($$;$) { |
258 | my ($self, $name) = (shift, shift); |
460 | my ($self, $name) = (shift, shift); |
… | |
… | |
276 | |
478 | |
277 | =item $oldtext = $term->selection ([$newtext]) |
479 | =item $oldtext = $term->selection ([$newtext]) |
278 | |
480 | |
279 | Return the current selection text and optionally replace it by C<$newtext>. |
481 | Return the current selection text and optionally replace it by C<$newtext>. |
280 | |
482 | |
281 | =item $term->scr_overlay ($x, $y, $text) |
483 | #=item $term->overlay ($x, $y, $text) |
282 | |
484 | # |
283 | Create a simple multi-line overlay box. See the next method for details. |
485 | #Create a simple multi-line overlay box. See the next method for details. |
284 | |
486 | # |
285 | =cut |
487 | #=cut |
286 | |
488 | |
287 | sub urxvt::term::scr_overlay { |
489 | sub urxvt::term::scr_overlay { |
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490 | die; |
288 | my ($self, $x, $y, $text) = @_; |
491 | my ($self, $x, $y, $text) = @_; |
289 | |
492 | |
290 | my @lines = split /\n/, $text; |
493 | my @lines = split /\n/, $text; |
291 | |
494 | |
292 | my $w = 0; |
495 | my $w = 0; |
293 | for (map urxvt::wcswidth $_, @lines) { |
496 | for (map $self->strwidth ($_), @lines) { |
294 | $w = $_ if $w < $_; |
497 | $w = $_ if $w < $_; |
295 | } |
498 | } |
296 | |
499 | |
297 | $self->scr_overlay_new ($x, $y, $w, scalar @lines); |
500 | $self->scr_overlay_new ($x, $y, $w, scalar @lines); |
298 | $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; |
501 | $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; |
299 | } |
502 | } |
300 | |
503 | |
301 | =item $term->scr_overlay_new ($x, $y, $width, $height) |
504 | =item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
302 | |
505 | |
303 | Create a new (empty) overlay at the given position with the given |
506 | Create a new (empty) overlay at the given position with the given |
304 | width/height. A border will be put around the box. If either C<$x> or |
507 | width/height. C<$rstyle> defines the initial rendition style |
305 | C<$y> is negative, then this is counted from the right/bottom side, |
508 | (default: C<OVERLAY_RSTYLE>). |
306 | respectively. |
|
|
307 | |
509 | |
308 | =item $term->scr_overlay_off |
510 | If C<$border> is C<2> (default), then a decorative border will be put |
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|
511 | around the box. |
309 | |
512 | |
310 | Switch the overlay off again. |
513 | If either C<$x> or C<$y> is negative, then this is counted from the |
|
|
514 | right/bottom side, respectively. |
311 | |
515 | |
312 | =item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) |
516 | This method returns an urxvt::overlay object. The overlay will be visible |
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517 | as long as the perl object is referenced. |
313 | |
518 | |
314 | Put a single character (specified numerically) at the given overlay |
519 | The methods currently supported on C<urxvt::overlay> objects are: |
315 | position. |
|
|
316 | |
520 | |
|
|
521 | =over 4 |
|
|
522 | |
317 | =item $term->scr_overlay_set ($x, $y, $text) |
523 | =item $overlay->set ($x, $y, $text, $rend) |
318 | |
524 | |
319 | Write a string at the given position into the overlay. |
525 | Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
|
|
526 | text in rxvt-unicode's special encoding and an array of rendition values |
|
|
527 | at a specific position inside the overlay. |
|
|
528 | |
|
|
529 | =item $overlay->hide |
|
|
530 | |
|
|
531 | If visible, hide the overlay, but do not destroy it. |
|
|
532 | |
|
|
533 | =item $overlay->show |
|
|
534 | |
|
|
535 | If hidden, display the overlay again. |
|
|
536 | |
|
|
537 | =back |
|
|
538 | |
|
|
539 | =item $cellwidth = $term->strwidth $string |
|
|
540 | |
|
|
541 | Returns the number of screen-cells this string would need. Correctly |
|
|
542 | accounts for wide and combining characters. |
|
|
543 | |
|
|
544 | =item $octets = $term->locale_encode $string |
|
|
545 | |
|
|
546 | Convert the given text string into the corresponding locale encoding. |
|
|
547 | |
|
|
548 | =item $string = $term->locale_decode $octets |
|
|
549 | |
|
|
550 | Convert the given locale-encoded octets into a perl string. |
|
|
551 | |
|
|
552 | =item $term->tt_write ($octets) |
|
|
553 | |
|
|
554 | Write the octets given in C<$data> to the tty (i.e. as program input). To |
|
|
555 | pass characters instead of octets, you should convert your strings first |
|
|
556 | to the locale-specific encoding using C<< $term->locale_encode >>. |
|
|
557 | |
|
|
558 | =item $nrow = $term->nrow |
|
|
559 | |
|
|
560 | =item $ncol = $term->ncol |
|
|
561 | |
|
|
562 | Return the number of rows/columns of the terminal window (i.e. as |
|
|
563 | specified by C<-geometry>, excluding any scrollback). |
|
|
564 | |
|
|
565 | =item $nsaved = $term->nsaved |
|
|
566 | |
|
|
567 | Returns the number of lines in the scrollback buffer. |
|
|
568 | |
|
|
569 | =item $view_start = $term->view_start ([$newvalue]) |
|
|
570 | |
|
|
571 | Returns the negative row number of the topmost line. Minimum value is |
|
|
572 | C<0>, which displays the normal terminal contents. Larger values scroll |
|
|
573 | this many lines into the scrollback buffer. |
|
|
574 | |
|
|
575 | =item $term->want_refresh |
|
|
576 | |
|
|
577 | Requests a screen refresh. At the next opportunity, rxvt-unicode will |
|
|
578 | compare the on-screen display with its stored representation. If they |
|
|
579 | differ, it redraws the differences. |
|
|
580 | |
|
|
581 | Used after changing terminal contents to display them. |
|
|
582 | |
|
|
583 | =item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
|
|
584 | |
|
|
585 | Returns the text of the entire row with number C<$row_number>. Row C<0> |
|
|
586 | is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
|
|
587 | terminal line. The scrollback buffer starts at line C<-1> and extends to |
|
|
588 | line C<< -$term->nsaved >>. |
|
|
589 | |
|
|
590 | If C<$new_text> is specified, it will replace characters in the current |
|
|
591 | line, starting at column C<$start_col> (default C<0>), which is useful |
|
|
592 | to replace only parts of a line. The font index in the rendition will |
|
|
593 | automatically be updated. |
|
|
594 | |
|
|
595 | C<$text> is in a special encoding: tabs and wide characters that use more |
|
|
596 | than one cell when displayed are padded with urxvt::NOCHAR characters |
|
|
597 | (C<chr 65535>). Characters with combining characters and other characters |
|
|
598 | that do not fit into the normal tetx encoding will be replaced with |
|
|
599 | characters in the private use area. |
|
|
600 | |
|
|
601 | You have to obey this encoding when changing text. The advantage is |
|
|
602 | that C<substr> and similar functions work on screen cells and not on |
|
|
603 | characters. |
|
|
604 | |
|
|
605 | The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
|
|
606 | can be used to convert normal strings into this encoding and vice versa. |
|
|
607 | |
|
|
608 | =item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
|
|
609 | |
|
|
610 | Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
|
|
611 | bitsets. Rendition bitsets contain information about colour, font, font |
|
|
612 | styles and similar information. See also C<< $term->ROW_t >>. |
|
|
613 | |
|
|
614 | When setting rendition, the font mask will be ignored. |
|
|
615 | |
|
|
616 | See the section on RENDITION, above. |
|
|
617 | |
|
|
618 | =item $length = $term->ROW_l ($row_number[, $new_length]) |
|
|
619 | |
|
|
620 | Returns the number of screen cells that are in use ("the line length"). If |
|
|
621 | it is C<-1>, then the line is part of a multiple-row logical "line", which |
|
|
622 | means all characters are in use and it is continued on the next row. |
|
|
623 | |
|
|
624 | =item $text = $term->special_encode $string |
|
|
625 | |
|
|
626 | Converts a perl string into the special encoding used by rxvt-unicode, |
|
|
627 | where one character corresponds to one screen cell. See |
|
|
628 | C<< $term->ROW_t >> for details. |
|
|
629 | |
|
|
630 | =item $string = $term->special_decode $text |
|
|
631 | |
|
|
632 | Converts rxvt-unicodes text reprsentation into a perl string. See |
|
|
633 | C<< $term->ROW_t >> for details. |
320 | |
634 | |
321 | =back |
635 | =back |
322 | |
636 | |
323 | =head2 The C<urxvt::timer> Class |
637 | =head2 The C<urxvt::timer> Class |
324 | |
638 | |
325 | This class implements timer watchers/events. Time is represented as a |
639 | This class implements timer watchers/events. Time is represented as a |
326 | fractional number of seconds since the epoch. Example: |
640 | fractional number of seconds since the epoch. Example: |
327 | |
641 | |
328 | # create a digital clock display in upper right corner |
642 | $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
329 | $term->{timer} = urxvt::timer |
643 | $term->{timer} = urxvt::timer |
330 | ->new |
644 | ->new |
331 | ->start (urxvt::NOW) |
645 | ->interval (1) |
332 | ->cb (sub { |
646 | ->cb (sub { |
333 | my ($timer) = @_; |
|
|
334 | my $time = $timer->at; |
|
|
335 | $timer->start ($time + 1); |
|
|
336 | $self->scr_overlay (-1, 0, |
647 | $term->{overlay}->set (0, 0, |
337 | POSIX::strftime "%H:%M:%S", localtime $time); |
648 | sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
338 | }); |
649 | }); |
339 | |
650 | |
340 | =over 4 |
651 | =over 4 |
341 | |
652 | |
342 | =item $timer = new urxvt::timer |
653 | =item $timer = new urxvt::timer |
343 | |
654 | |
344 | Create a new timer object in stopped state. |
655 | Create a new timer object in started state. It is scheduled to fire |
|
|
656 | immediately. |
345 | |
657 | |
346 | =item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
658 | =item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
347 | |
659 | |
348 | Set the callback to be called when the timer triggers. |
660 | Set the callback to be called when the timer triggers. |
349 | |
661 | |
… | |
… | |
352 | Return the time this watcher will fire next. |
664 | Return the time this watcher will fire next. |
353 | |
665 | |
354 | =item $timer = $timer->set ($tstamp) |
666 | =item $timer = $timer->set ($tstamp) |
355 | |
667 | |
356 | Set the time the event is generated to $tstamp. |
668 | Set the time the event is generated to $tstamp. |
|
|
669 | |
|
|
670 | =item $timer = $timer->interval ($interval) |
|
|
671 | |
|
|
672 | Normally (and when C<$interval> is C<0>), the timer will automatically |
|
|
673 | stop after it has fired once. If C<$interval> is non-zero, then the timer |
|
|
674 | is automatically rescheduled at the given intervals. |
357 | |
675 | |
358 | =item $timer = $timer->start |
676 | =item $timer = $timer->start |
359 | |
677 | |
360 | Start the timer. |
678 | Start the timer. |
361 | |
679 | |