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/cvs/rxvt-unicode/src/rxvt.h
Revision: 1.565
Committed: Sat Jun 26 14:44:30 2021 UTC (2 years, 11 months ago) by sf-exg
Content type: text/plain
Branch: MAIN
Changes since 1.564: +9 -1 lines
Log Message:
Make rxvt_failure_exception inherit from std::exception

File Contents

# Content
1 #ifndef RXVT_H_ /* include once only */
2 #define RXVT_H_
3
4 #include <stdio.h>
5 #include <ctype.h>
6 #include <errno.h>
7 #include <stdarg.h>
8 #include <stdlib.h>
9 #ifdef HAVE_STDINT_H
10 #include <stdint.h>
11 #endif
12 #include <sys/types.h>
13 #include <unistd.h>
14 #include <string.h>
15 #include <assert.h>
16 #ifdef HAVE_SYS_IOCTL_H
17 #include <sys/ioctl.h>
18 #endif
19 #ifdef HAVE_SYS_STRREDIR_H
20 #include <sys/strredir.h>
21 #endif
22
23 #if HAVE_WCHAR_H
24 # include <wchar.h>
25 #else
26 // stdlib.h might provide it
27 #endif
28
29 // we assume that Xlib.h defines XPointer, and it does since at least 1994...
30
31 extern "C" {
32 #include <X11/Xlib.h>
33 #include <X11/Xutil.h>
34 #include <X11/Xresource.h>
35 }
36
37 #if UNICODE_3
38 typedef uint32_t text_t;
39 #else
40 typedef uint16_t text_t; // saves lots of memory
41 #endif
42 typedef uint32_t rend_t;
43 typedef int32_t tlen_t; // was int16_t, but this results in smaller code and memory use
44 typedef int32_t tlen_t_; // specifically for use in the line_t structure
45
46 #include "feature.h"
47
48 #if defined (ISO_14755) || defined (ENABLE_PERL)
49 # define ENABLE_OVERLAY 1
50 #endif
51
52 #if ENABLE_PERL
53 # define ENABLE_FRILLS 1
54 # define ENABLE_COMBINING 1
55 #endif
56
57 #if ENABLE_FRILLS
58 # define ENABLE_XEMBED 1
59 # define ENABLE_EWMH 1
60 # define ENABLE_XIM_ONTHESPOT 1
61 # define CURSOR_BLINK 1
62 # define OPTION_HC 1
63 # define BUILTIN_GLYPHS 1
64 #else
65 # define ENABLE_MINIMAL 1
66 #endif
67
68 #include <limits.h>
69
70 #include <X11/cursorfont.h>
71 #include <X11/keysym.h>
72 #include <X11/keysymdef.h>
73 #include <X11/Xatom.h>
74
75 #if HAVE_PIXBUF
76 # include <gdk-pixbuf/gdk-pixbuf.h>
77 #endif
78
79 #if XRENDER && (HAVE_PIXBUF || ENABLE_TRANSPARENCY)
80 # define HAVE_IMG 1
81 #endif
82
83 #define ECB_NO_THREADS 1
84 #include "ecb.h"
85
86 #include "encoding.h"
87 #include "rxvtutil.h"
88 #include "rxvtfont.h"
89 #include "rxvttoolkit.h"
90 #include "rxvtimg.h"
91 #include "scrollbar.h"
92 #include "ev_cpp.h"
93 #include "libptytty.h"
94
95 #include "rxvtperl.h"
96
97 // try to avoid some macros to decrease code size, on some systems
98 #if ENABLE_MINIMAL
99 # define strcmp(a,b) (strcmp)(a,b)
100 # define strlen(a) (strlen)(a)
101 # define strcpy(a,b) (strcpy)(a,b)
102 # define memset(a,c,l) (memset)(a,c,l)
103 # define memcpy(a,b,l) (memcpy)(a,b,l)
104 #endif
105
106 /*
107 *****************************************************************************
108 * SYSTEM HACKS
109 *****************************************************************************
110 */
111
112 #include <termios.h>
113
114 #ifndef STDIN_FILENO
115 # define STDIN_FILENO 0
116 # define STDOUT_FILENO 1
117 # define STDERR_FILENO 2
118 #endif
119
120 #ifndef EXIT_SUCCESS /* missing from <stdlib.h> */
121 # define EXIT_SUCCESS 0 /* exit function success */
122 # define EXIT_FAILURE 1 /* exit function failure */
123 #endif
124
125 /****************************************************************************/
126
127 // exception thrown on fatal (per-instance) errors
128 class rxvt_failure_exception : public std::exception
129 {
130 public:
131 const char *
132 what () const noexcept override
133 {
134 return "";
135 }
136 };
137
138 // exception thrown when the command parser runs out of input data
139 class out_of_input { };
140
141 /*
142 *****************************************************************************
143 * PROTOTYPES
144 *****************************************************************************
145 */
146 // main.C
147 #define SET_LOCALE(locale) rxvt_set_locale (locale)
148 extern bool rxvt_set_locale (const char *locale) noexcept;
149 extern void rxvt_push_locale (const char *locale) noexcept;
150 extern void rxvt_pop_locale () noexcept;
151 void rxvt_init ();
152
153 // misc.C
154 char * rxvt_wcstombs (const wchar_t *str, int len = -1);
155 wchar_t * rxvt_mbstowcs (const char *str, int len = -1);
156 char * rxvt_wcstoutf8 (const wchar_t *str, int len = -1);
157 wchar_t * rxvt_utf8towcs (const char *str, int len = -1);
158
159 const char * rxvt_basename (const char *str) noexcept;
160 void rxvt_vlog (const char *fmt, va_list arg_ptr) noexcept;
161 void rxvt_log (const char *fmt,...) noexcept;
162 void rxvt_warn (const char *fmt,...) noexcept;
163 ecb_noreturn ecb_cold
164 void rxvt_fatal (const char *fmt, ...);
165 ecb_noreturn ecb_cold
166 void rxvt_exit_failure ();
167
168 void * rxvt_malloc (size_t size);
169 void * rxvt_calloc (size_t number, size_t size);
170 void * rxvt_realloc (void *ptr, size_t size);
171
172 char * rxvt_strtrim (char *str) noexcept;
173 char ** rxvt_strsplit (char delim, const char *str) noexcept;
174
175 static inline void
176 rxvt_free_strsplit (char **ptr) noexcept
177 {
178 free (ptr[0]);
179 free (ptr);
180 }
181
182 KeySym rxvt_XKeycodeToKeysym (Display *dpy, KeyCode keycode, int index);
183
184 /////////////////////////////////////////////////////////////////////////////
185
186 // temporarily replace the process environment
187 extern char **environ;
188 extern char **rxvt_environ; // the original environ pointer
189
190 static inline void
191 set_environ (char **envv)
192 {
193 #if ENABLE_PERL
194 assert (envv);
195 #else
196 if (envv)
197 #endif
198 environ = envv;
199 }
200
201 struct localise_env
202 {
203 char **orig_env;
204
205 localise_env (char **new_env)
206 {
207 orig_env = environ;
208 environ = new_env;
209 }
210
211 ~localise_env ()
212 {
213 environ = orig_env;
214 }
215 };
216
217 /*
218 *****************************************************************************
219 * STRUCTURES AND TYPEDEFS
220 *****************************************************************************
221 */
222
223 /*
224 * the 'essential' information for reporting Mouse Events
225 * pared down from XButtonEvent
226 */
227 struct mouse_event
228 {
229 int clicks;
230 Time time; /* milliseconds */
231 unsigned int state; /* key or button mask */
232 unsigned int button; /* detail */
233 };
234
235 #if ENABLE_XEMBED
236 // XEMBED messages
237 # define XEMBED_EMBEDDED_NOTIFY 0
238 # define XEMBED_WINDOW_ACTIVATE 1
239 # define XEMBED_WINDOW_DEACTIVATE 2
240 # define XEMBED_REQUEST_FOCUS 3
241 # define XEMBED_FOCUS_IN 4
242 # define XEMBED_FOCUS_OUT 5
243 # define XEMBED_FOCUS_NEXT 6
244 # define XEMBED_FOCUS_PREV 7
245
246 # define XEMBED_MODALITY_ON 10
247 # define XEMBED_MODALITY_OFF 11
248 # define XEMBED_REGISTER_ACCELERATOR 12
249 # define XEMBED_UNREGISTER_ACCELERATOR 13
250 # define XEMBED_ACTIVATE_ACCELERATOR 14
251
252 // XEMBED detail code
253 # define XEMBED_FOCUS_CURRENT 0
254 # define XEMBED_FOCUS_FIRST 1
255 # define XEMBED_FOCUS_LAST 2
256
257 # define XEMBED_MAPPED (1 << 0)
258 #endif
259
260 /*
261 *****************************************************************************
262 * NORMAL DEFINES
263 *****************************************************************************
264 */
265
266 /* COLORTERM, TERM environment variables */
267 #define COLORTERMENV "rxvt"
268 #if HAVE_IMG
269 # define COLORTERMENVFULL COLORTERMENV "-xpm"
270 #else
271 # define COLORTERMENVFULL COLORTERMENV
272 #endif
273 #ifndef TERMENV
274 # if USE_256_COLORS
275 # define TERMENV "rxvt-unicode-256color"
276 # else
277 # define TERMENV "rxvt-unicode"
278 # endif
279 #endif
280
281 // Hidden color cube for indexed 24-bit colors. There are fewer blue levels
282 // because normal human eye is less sensitive to the blue component than to
283 // the red or green. (https://en.m.wikipedia.org/wiki/Color_depth#8-bit_color)
284 #if USE_256_COLORS
285 // 7x7x5=245 < 254 unused color indices
286 # define Red_levels 7
287 # define Green_levels 7
288 # define Blue_levels 5
289 #else
290 // 6x6x4=144 < 166 unused color indices
291 # define Red_levels 6
292 # define Green_levels 6
293 # define Blue_levels 4
294 #endif
295
296 #define RGB24_CUBE_SIZE (Red_levels * Green_levels * Blue_levels)
297
298 #if defined (NO_MOUSE_REPORT) && !defined (NO_MOUSE_REPORT_SCROLLBAR)
299 # define NO_MOUSE_REPORT_SCROLLBAR 1
300 #endif
301
302 #define scrollBar_esc 30
303
304 #if !defined (RXVT_SCROLLBAR) && !defined (NEXT_SCROLLBAR)
305 # define NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING 1
306 #endif
307
308 enum {
309 NO_REFRESH = 0, /* Window not visible at all! */
310 FAST_REFRESH = 1, /* Fully exposed window */
311 SLOW_REFRESH = 2, /* Partially exposed window */
312 };
313
314 #ifdef NO_SECONDARY_SCREEN
315 # define NSCREENS 0
316 #else
317 # define NSCREENS 1
318 #endif
319
320 /* flags for rxvt_term::scr_gotorc () */
321 enum {
322 C_RELATIVE = 1, /* col movement is relative */
323 R_RELATIVE = 2, /* row movement is relative */
324 RELATIVE = C_RELATIVE | R_RELATIVE,
325 };
326
327 /* modes for rxvt_term::scr_insdel_chars (), rxvt_term::scr_insdel_lines () */
328 enum {
329 INSERT = -1, /* don't change these values */
330 DELETE = +1,
331 ERASE = +2,
332 };
333
334 /* modes for rxvt_term::scr_page () - scroll page. used by scrollbar window */
335 enum page_dirn {
336 DN = -1,
337 NO_DIR = 0,
338 UP = 1,
339 };
340
341 /* arguments for rxvt_term::scr_change_screen () */
342 enum {
343 PRIMARY = 0,
344 SECONDARY,
345 };
346
347 // define various rendition bits and masks. the rendition word
348 // is 32 bits in size, and we should use it as efficiently as possible
349
350 #define RS_None 0
351
352 // GET_BGATTR depends on RS_fgShift > RS_bgShift
353 #define RS_colorMask ((1UL << Color_Bits) - 1UL)
354 #define RS_bgShift 0
355 #define RS_fgShift (RS_bgShift + Color_Bits)
356 #define RS_bgMask (RS_colorMask << RS_bgShift)
357 #define RS_fgMask (RS_colorMask << RS_fgShift)
358
359 // must have space for rxvt_fontset::fontCount * 2 + 2 values
360 #define RS_fontShift (RS_fgShift + Color_Bits)
361 #define RS_Careful (1UL << RS_fontShift) /* be careful when drawing these */
362 #define RS_fontCount rxvt_fontset::fontCount
363 #define RS_fontMask ((RS_fontCount << (RS_fontShift + 1)) | RS_Careful) // includes RS_Careful
364
365 // toggle this to force redraw, must be != RS_Careful and otherwise "pretty neutral"
366 #define RS_redraw (2UL << RS_fontShift)
367
368 #define RS_Sel (1UL << 22)
369
370 // 4 custom bits for extensions
371 #define RS_customCount 16UL
372 #define RS_customShift 23
373 #define RS_customMask ((RS_customCount - 1UL) << RS_customShift)
374
375 // font styles
376 #define RS_Bold (1UL << RS_styleShift)
377 #define RS_Italic (2UL << RS_styleShift)
378
379 #define RS_styleCount 4
380 #define RS_styleShift 27
381 #define RS_styleMask (RS_Bold | RS_Italic)
382
383 // fake styles
384 #define RS_Blink (1UL << 29)
385 #define RS_RVid (1UL << 30) // reverse video
386 #define RS_Uline (1UL << 31) // underline
387
388 #define RS_baseattrMask (RS_Italic | RS_Bold | RS_Blink | RS_RVid | RS_Uline)
389 #define RS_attrMask (RS_baseattrMask | RS_fontMask)
390
391 #define DEFAULT_RSTYLE (RS_None | (Color_fg << RS_fgShift) | (Color_bg << RS_bgShift))
392 #define OVERLAY_RSTYLE (RS_None | (Color_Black << RS_fgShift) | (Color_Yellow << RS_bgShift))
393
394 enum {
395 C0_NUL = 0x00,
396 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
397 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
398 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
399 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
400 };
401 #define CHAR_ST 0x9c /* 0234 */
402
403 /*
404 * XTerm Operating System Commands: ESC ] Ps;Pt (ST|BEL)
405 * colour extensions by Christian W. Zuckschwerdt <zany@triq.net>
406 */
407 enum {
408 XTerm_name = 0,
409 XTerm_iconName = 1,
410 XTerm_title = 2,
411 XTerm_property = 3, // change X property
412 XTerm_Color = 4, // change colors
413 XTerm_Color00 = 10, // change fg color
414 XTerm_Color01 = 11, // change bg color
415 XTerm_Color_cursor = 12, // change actual 'Cursor' color
416 XTerm_Color_pointer_fg = 13, // change actual 'Pointer' fg color
417 XTerm_Color_pointer_bg = 14, // change actual 'Pointer' bg color
418 XTerm_Color05 = 15, // not implemented (tektronix fg)
419 XTerm_Color06 = 16, // not implemented (tektronix bg)
420 XTerm_Color_HC = 17, // change actual 'Highlight' bg color
421 XTerm_Color_HTC = 19, // change actual 'Highlight' fg color
422 XTerm_logfile = 46, // not implemented
423 XTerm_font = 50,
424
425 XTerm_konsole30 = 30, // reserved for konsole
426 XTerm_konsole31 = 31, // reserved for konsole
427 XTerm_emacs51 = 51, // reserved for emacs shell
428 /*
429 * rxvt extensions of XTerm OSCs: ESC ] Ps;Pt (ST|BEL)
430 */
431
432 // deprecated
433 Rxvt_restoreFG = 39,
434 Rxvt_restoreBG = 49,
435
436 Rxvt_dumpscreen = 55, // dump scrollback and all of screen
437
438 URxvt_locale = 701, // change locale
439 URxvt_version = 702, // request version
440
441 URxvt_Color_IT = 704, // change actual 'Italic' colour
442 URxvt_Color_BD = 706, // change actual 'Bold' color
443 URxvt_Color_UL = 707, // change actual 'Underline' color
444 URxvt_Color_border = 708,
445
446 URxvt_font = 710,
447 URxvt_boldFont = 711,
448 URxvt_italicFont = 712,
449 URxvt_boldItalicFont = 713,
450
451 URxvt_view_up = 720,
452 URxvt_view_down = 721,
453
454 URxvt_perl = 777, // for use by perl extensions, starts with "extension-name;"
455 };
456
457 /* Words starting with `Color_' are colours. Others are counts */
458 /*
459 * The PixColor and rendition colour usage should probably be decoupled
460 * on the unnecessary items, e.g. Color_pointer, but won't bother
461 * until we need to. Also, be aware of usage in pixcolor_set
462 */
463
464 enum colour_list {
465 Color_none = -2,
466 Color_transparent = -1,
467 Color_fg = 0,
468 Color_bg,
469 minCOLOR, /* 2 */
470 Color_Black = minCOLOR,
471 Color_Red3,
472 Color_Green3,
473 Color_Yellow3,
474 Color_Blue3,
475 Color_Magenta3,
476 Color_Cyan3,
477 maxCOLOR, /* minCOLOR + 7 */
478 #ifndef NO_BRIGHTCOLOR
479 Color_AntiqueWhite = maxCOLOR,
480 minBrightCOLOR, /* maxCOLOR + 1 */
481 Color_Grey25 = minBrightCOLOR,
482 Color_Red,
483 Color_Green,
484 Color_Yellow,
485 Color_Blue,
486 Color_Magenta,
487 Color_Cyan,
488 maxBrightCOLOR, /* minBrightCOLOR + 7 */
489 Color_White = maxBrightCOLOR,
490 #else
491 Color_White = maxCOLOR,
492 #endif
493 minTermCOLOR = Color_White + 1,
494 #if USE_256_COLORS
495 maxTermCOLOR = Color_White + 240,
496 #else
497 maxTermCOLOR = Color_White + 72,
498 #endif
499 minTermCOLOR24,
500 maxTermCOLOR24 = minTermCOLOR24 +
501 RGB24_CUBE_SIZE - 1,
502 #ifndef NO_CURSORCOLOR
503 Color_cursor,
504 Color_cursor2,
505 #endif
506 Color_pointer_fg,
507 Color_pointer_bg,
508 Color_border,
509 #ifndef NO_BOLD_UNDERLINE_REVERSE
510 Color_BD,
511 Color_IT,
512 Color_UL,
513 Color_RV,
514 #endif
515 #if ENABLE_FRILLS
516 Color_underline,
517 #endif
518 #ifdef OPTION_HC
519 Color_HC,
520 Color_HTC,
521 #endif
522 Color_scroll,
523 #ifdef RXVT_SCROLLBAR
524 Color_trough,
525 #endif
526 #if OFF_FOCUS_FADING
527 Color_fade,
528 #endif
529 NRS_COLORS, /* */
530 #ifdef RXVT_SCROLLBAR
531 Color_topShadow = NRS_COLORS,
532 Color_bottomShadow,
533 TOTAL_COLORS
534 #else
535 TOTAL_COLORS = NRS_COLORS
536 #endif
537 };
538
539 #if USE_256_COLORS
540 # define Color_Bits 9 // 0 .. maxTermCOLOR24
541 #else
542 # define Color_Bits 8 // 0 .. maxTermCOLOR24
543 #endif
544
545 #if maxTermCOLOR24 >= (1 << Color_Bits)
546 # error color index overflow
547 #endif
548
549 /*
550 * Resource list
551 */
552 enum {
553 # define def(name) Rs_ ## name,
554 # define reserve(name,count) Rs_ ## name ## _ = Rs_ ## name + (count) - 1,
555 # include "rsinc.h"
556 # undef def
557 # undef reserve
558 NUM_RESOURCES
559 };
560
561 /* DEC private modes */
562 #define PrivMode_132 (1UL<<0)
563 #define PrivMode_132OK (1UL<<1)
564 #define PrivMode_rVideo (1UL<<2)
565 #define PrivMode_relOrigin (1UL<<3)
566 #define PrivMode_Screen (1UL<<4)
567 #define PrivMode_Autowrap (1UL<<5)
568 #define PrivMode_aplCUR (1UL<<6)
569 #define PrivMode_aplKP (1UL<<7)
570 #define PrivMode_HaveBackSpace (1UL<<8)
571 #define PrivMode_BackSpace (1UL<<9)
572 #define PrivMode_ShiftKeys (1UL<<10)
573 #define PrivMode_VisibleCursor (1UL<<11)
574 #define PrivMode_MouseX10 (1UL<<12)
575 #define PrivMode_MouseX11 (1UL<<13)
576 #define PrivMode_scrollBar (1UL<<14)
577 #define PrivMode_TtyOutputInh (1UL<<15)
578 #define PrivMode_Keypress (1UL<<16)
579 #define PrivMode_smoothScroll (1UL<<17)
580 #define PrivMode_vt52 (1UL<<18)
581 #define PrivMode_LFNL (1UL<<19)
582 #define PrivMode_MouseBtnEvent (1UL<<20)
583 #define PrivMode_MouseAnyEvent (1UL<<21)
584 #define PrivMode_BracketPaste (1UL<<22)
585 #define PrivMode_ExtMouseUTF8 (1UL<<23) // xterm pseudo-utf-8 hack
586 #define PrivMode_ExtMouseUrxvt (1UL<<24) // xterm pseudo-utf-8, but works in non-utf-8-locales
587 #define PrivMode_BlinkingCursor (1UL<<25)
588 #define PrivMode_FocusEvent (1UL<<26)
589 #define PrivMode_ExtMouseSGR (1UL<<27)
590
591 #define PrivMode_mouse_report (PrivMode_MouseX10|PrivMode_MouseX11|PrivMode_MouseBtnEvent|PrivMode_MouseAnyEvent)
592
593 #ifdef ALLOW_132_MODE
594 # define PrivMode_Default (PrivMode_Autowrap|PrivMode_ShiftKeys|PrivMode_VisibleCursor|PrivMode_132OK)
595 #else
596 # define PrivMode_Default (PrivMode_Autowrap|PrivMode_ShiftKeys|PrivMode_VisibleCursor)
597 #endif
598
599 // do not change these constants lightly, there are many interdependencies
600 #define IMBUFSIZ 128 // input modifier buffer sizes
601 #define KBUFSZ 512 // size of keyboard mapping buffer
602 #define CBUFSIZ 32768 // size of command buffer (longest command sequence possible)
603 #define CBUFCNT 8 // never call pty_fill/cmd_parse more than this often in a row
604 #define UBUFSIZ 2048 // character buffer
605
606 #if ENABLE_FRILLS
607 # include <X11/Xmd.h>
608 typedef struct _mwmhints
609 {
610 CARD32 flags;
611 CARD32 functions;
612 CARD32 decorations;
613 INT32 input_mode;
614 CARD32 status;
615 } MWMHints;
616 #endif
617
618 /* Motif window hints */
619 #define MWM_HINTS_FUNCTIONS (1L << 0)
620 #define MWM_HINTS_DECORATIONS (1L << 1)
621 #define MWM_HINTS_INPUT_MODE (1L << 2)
622 #define MWM_HINTS_STATUS (1L << 3)
623 /* bit definitions for MwmHints.functions */
624 #define MWM_FUNC_ALL (1L << 0)
625 #define MWM_FUNC_RESIZE (1L << 1)
626 #define MWM_FUNC_MOVE (1L << 2)
627 #define MWM_FUNC_MINIMIZE (1L << 3)
628 #define MWM_FUNC_MAXIMIZE (1L << 4)
629 #define MWM_FUNC_CLOSE (1L << 5)
630 /* bit definitions for MwmHints.decorations */
631 #define MWM_DECOR_ALL (1L << 0)
632 #define MWM_DECOR_BORDER (1L << 1)
633 #define MWM_DECOR_RESIZEH (1L << 2)
634 #define MWM_DECOR_TITLE (1L << 3)
635 #define MWM_DECOR_MENU (1L << 4)
636 #define MWM_DECOR_MINIMIZE (1L << 5)
637 #define MWM_DECOR_MAXIMIZE (1L << 6)
638 /* bit definitions for MwmHints.inputMode */
639 #define MWM_INPUT_MODELESS 0
640 #define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
641 #define MWM_INPUT_SYSTEM_MODAL 2
642 #define MWM_INPUT_FULL_APPLICATION_MODAL 3
643 #define PROP_MWM_HINTS_ELEMENTS 5
644
645 /*
646 *****************************************************************************
647 * MACRO DEFINES
648 *****************************************************************************
649 */
650
651 // speed hack, copy some member variable into a local variable of the same name
652 #define dLocal(type,name) type const name = this->name
653
654 // for speed reasons, we assume that all codepoints 32 to 126 are
655 // single-width.
656 #define WCWIDTH(c) (IN_RANGE_INC (c, 0x20, 0x7e) ? 1 : wcwidth (c))
657
658 /* convert pixel dimensions to row/column values. Everything as int32_t */
659 #define Pixel2Col(x) Pixel2Width((int32_t)(x))
660 #define Pixel2Row(y) Pixel2Height((int32_t)(y))
661 #define Pixel2Width(x) ((int32_t)(x) / (int32_t)fwidth)
662 #define Pixel2Height(y) ((int32_t)(y) / (int32_t)fheight)
663 #define Col2Pixel(col) ((int32_t)Width2Pixel(col))
664 #define Row2Pixel(row) ((int32_t)Height2Pixel(row))
665 #define Width2Pixel(n) ((int32_t)(n) * (int32_t)fwidth)
666 #define Height2Pixel(n) ((int32_t)(n) * (int32_t)fheight)
667
668 #define LINENO_of(t,n) MOD ((t)->term_start + int(n), (t)->total_rows)
669 #define ROW_of(t,n) (t)->row_buf [LINENO_of ((t), n)]
670
671 #define LINENO(n) LINENO_of (this, n)
672 #define ROW(n) ROW_of (this, n)
673
674 /* how to build & extract colors and attributes */
675 #define GET_BASEFG(x) (((x) & RS_fgMask) >> RS_fgShift)
676 #define GET_BASEBG(x) (((x) & RS_bgMask) >> RS_bgShift)
677
678 #define GET_FONT(x) (((x) & RS_fontMask) >> RS_fontShift)
679 #define SET_FONT(x,fid) (((x) & ~RS_fontMask) | ((fid) << RS_fontShift))
680
681 #define GET_STYLE(x) (((x) & RS_styleMask) >> RS_styleShift)
682 #define SET_STYLE(x,style) (((x) & ~RS_styleMask) | ((style) << RS_styleShift))
683
684 #define GET_ATTR(x) (((x) & RS_attrMask))
685 #define SET_FGCOLOR(x,fg) (((x) & ~RS_fgMask) | ((fg) << RS_fgShift))
686 #define SET_BGCOLOR(x,bg) (((x) & ~RS_bgMask) | ((bg) << RS_bgShift))
687 #define SET_ATTR(x,a) (((x) & ~RS_attrMask) | (a))
688
689 #define RS_SAME(a,b) (!(((a) ^ (b)) & ~RS_Careful))
690
691 #define PIXCOLOR_NAME(idx) rs[Rs_color + (idx)]
692 #define ISSET_PIXCOLOR(idx) (!!rs[Rs_color + (idx)])
693
694 #if ENABLE_STYLES
695 # define FONTSET_of(t,style) (t)->fontset[GET_STYLE (style)]
696 #else
697 # define FONTSET_of(t,style) (t)->fontset[0]
698 #endif
699
700 #define FONTSET(style) FONTSET_of (this, style)
701
702 typedef callback<void (const char *)> log_callback;
703 typedef callback<int (int)> getfd_callback;
704
705 /****************************************************************************/
706
707 #define LINE_LONGER 0x0001 // line is continued on the next row
708 #define LINE_FILTERED 0x0002 // line has been filtered
709 #define LINE_COMPRESSED 0x0004 // line has been compressed (NYI)
710 #define LINE_FILTER 0x0008 // line needs to be filtered before display (NYI)
711 #define LINE_BIDI 0x0010 // line needs bidi (NYI)
712
713 struct line_t
714 {
715 text_t *t; // terminal the text
716 rend_t *r; // rendition, uses RS_ flags
717 tlen_t_ l; // length of each text line
718 uint32_t f; // flags
719
720 bool valid ()
721 {
722 return l >= 0;
723 }
724
725 void alloc ()
726 {
727 l = 0;
728 }
729
730 bool is_longer ()
731 {
732 return f & LINE_LONGER;
733 }
734
735 void is_longer (int set)
736 {
737 if (set)
738 f |= LINE_LONGER;
739 else
740 f &= ~LINE_LONGER;
741 }
742
743 void clear ()
744 {
745 t = 0;
746 r = 0;
747 l = 0;
748 f = 0;
749 }
750
751 void touch () // call whenever a line is changed/touched/updated
752 {
753 #if ENABLE_PERL
754 f &= ~LINE_FILTERED;
755 #endif
756 }
757
758 void touch (int col)
759 {
760 max_it (l, col);
761 touch ();
762 }
763 };
764
765 /****************************************************************************/
766
767 // primitive wrapper around mbstate_t to ensure initialisation
768 struct mbstate
769 {
770 mbstate_t mbs;
771
772 operator mbstate_t *() { return &mbs; }
773 void reset () { memset (&mbs, 0, sizeof (mbs)); }
774 mbstate () { reset (); }
775 };
776
777 /****************************************************************************/
778
779 #define UNICODE_MASK 0x1fffffUL
780
781 #if UNICODE_3
782 # define COMPOSE_LO 0x110000UL
783 # define COMPOSE_HI 0x1fffffUL
784 # define IS_COMPOSE(n) ((int32_t)(n) >= COMPOSE_LO)
785 #else
786 # if ENABLE_PERL
787 # define COMPOSE_LO 0xe000UL // our _own_ functions don't like (illegal) surrogates
788 # define COMPOSE_HI 0xf8ffUL // in utf-8, so use private use area only
789 # else
790 # define COMPOSE_LO 0xd800UL
791 # define COMPOSE_HI 0xf8ffUL
792 # endif
793 # define IS_COMPOSE(n) IN_RANGE_INC ((n), COMPOSE_LO, COMPOSE_HI)
794 #endif
795
796 #if ENABLE_COMBINING
797 // compose chars are used to represent composite characters
798 // that are not representable in unicode, as well as characters
799 // not fitting in the BMP.
800 struct compose_char
801 {
802 // c1 can be any character != NOCHAR, including another compose character
803 // c2 must always be a zero-width character or NOCHAR, in case
804 // this just extends beyond the BMP.
805 unicode_t c1, c2;
806
807 compose_char (unicode_t c1, unicode_t c2)
808 : c1(c1), c2(c2)
809 { }
810 };
811
812 struct rxvt_composite_vec
813 {
814 vector<compose_char> v;
815
816 text_t compose (unicode_t c1, unicode_t c2 = NOCHAR);
817 template<typename T> int expand (unicode_t c, T *r);
818 int expand (unicode_t c) { return expand (c, (text_t *)0); }
819 compose_char *operator [](text_t c)
820 {
821 return c >= COMPOSE_LO && c < COMPOSE_LO + v.size ()
822 ? &v[c - COMPOSE_LO]
823 : 0;
824 }
825 };
826
827 extern class rxvt_composite_vec rxvt_composite;
828 #endif
829
830 #if 0
831 // expand the sequence into a static array
832 // works even without ENABLE_COMBINING
833 template<typename T, int max_size_ = 48>
834 struct rxvt_compose_expand_static
835 {
836 #if ENABLE_COMBINING
837 enum { max_size = max_size_ };
838
839 T chrs[max_size];
840
841 // expand sequence and return start ptr
842 // guarantees at least one output
843 // get the length with length () on that ptr
844 T *operator ()(unicode_t c)
845 {
846 T *cur = chrs + max_size;
847
848 while (ecb_expect_false (IS_COMPOSE (c)))
849 if (ecb_expect_true (c - COMPOSE_LO < rxvt_composite.v.size ()))
850 {
851 compose_char *cc = &rxvt_composite.v [c - COMPOSE_LO];
852
853 if (cc->c2 != NOCHAR)
854 {
855 cur -= cur > chrs; *cur = cc->c2;
856 }
857
858 c = cc->c1;
859 }
860 else
861 c = NOCHAR;
862
863 cur -= cur > chrs; *cur = c;
864
865 return cur;
866 }
867
868 int length (T *first)
869 {
870 return chrs + max_size - first;
871 }
872 #else
873 T chr;
874
875 T *operator ()(text_t c);
876 {
877 chr = c;
878 return &chr;
879 }
880
881 int length (T *first)
882 {
883 return 1;
884 }
885 #endif
886 };
887 #endif
888
889 /****************************************************************************/
890
891 #ifdef KEYSYM_RESOURCE
892 class keyboard_manager;
893 #endif
894
895 typedef struct rxvt_term *rxvt_t;
896
897 extern rxvt_t rxvt_current_term;
898
899 #define SET_R(r) rxvt_current_term = const_cast<rxvt_term *>(r)
900 #define GET_R rxvt_current_term
901
902 /* ------------------------------------------------------------------------- */
903 struct overlay_base
904 {
905 int x, y, w, h; // overlay dimensions
906 text_t **text;
907 rend_t **rend;
908
909 // while tempting to add swap() etc. here, it effectively only increases code size
910 };
911
912 /* ------------------------------------------------------------------------- */
913
914 typedef struct
915 {
916 int row;
917 int col;
918 } row_col_t;
919
920 /*
921 * terminal limits:
922 *
923 * width : 1 <= width
924 * height : 1 <= height
925 * ncol : 1 <= ncol <= MAX(tlen_t)
926 * nrow : 1 <= nrow <= MAX(int)
927 * saveLines : 0 <= saveLines <= MAX(int)
928 * term_start : 0 <= term_start < saveLines
929 * total_rows : nrow + saveLines
930 *
931 * top_row : -saveLines <= top_row <= 0
932 * view_start : top_row <= view_start <= 0
933 *
934 * | most coordinates are stored relative to term_start,
935 * ROW_BUF | which is the first line of the terminal screen
936 * |························= row_buf[0]
937 * |························= row_buf[1]
938 * |························= row_buf[2] etc.
939 * |
940 * +------------+···········= term_start + top_row
941 * | scrollback |
942 * | scrollback +---------+·= term_start + view_start
943 * | scrollback | display |
944 * | scrollback | display |
945 * +------------+·display·+·= term_start
946 * | terminal | display |
947 * | terminal +---------+
948 * | terminal |
949 * | terminal |
950 * +------------+···········= term_start + nrow - 1
951 * |
952 * |
953 * END······················= total_rows
954 */
955
956 struct TermWin_t
957 {
958 int vt_width; /* actual window width [pixels] */
959 int vt_height; /* actual window height [pixels] */
960 int width; /* window width [pixels] */
961 int height; /* window height [pixels] */
962 int fwidth; /* font width [pixels] */
963 int fheight; /* font height [pixels] */
964 int fbase; /* font ascent (baseline) [pixels] */
965 int ncol; /* window columns [characters] */
966 int nrow; /* window rows [characters] */
967 int focus; /* window has focus */
968 int mapped; /* window state mapped? */
969 int int_bwidth; /* internal border width */
970 int ext_bwidth; /* external border width */
971 int lineSpace; /* number of extra pixels between rows */
972 int letterSpace; /* number of extra pixels between columns */
973 int saveLines; /* number of lines that fit in scrollback */
974 int total_rows; /* total number of rows in this terminal */
975 int term_start; /* term lines start here */
976 int view_start; /* scrollback view starts here */
977 int top_row; /* topmost row index of scrollback */
978 Window parent; /* parent identifier */
979 Window vt; /* vt100 window */
980 GC gc; /* GC for drawing */
981 rxvt_drawable *drawable;
982 rxvt_fontset *fontset[4];
983 };
984
985 /*
986 * screen accounting:
987 * screen_t elements
988 * row: Cursor row position : 0 <= row < nrow
989 * col: Cursor column position : 0 <= col < ncol
990 * tscroll: Scrolling region top row inclusive : 0 <= row < nrow
991 * bscroll: Scrolling region bottom row inclusive : 0 <= row < nrow
992 *
993 * selection_t elements
994 * clicks: 1, 2 or 3 clicks - 4 indicates a special condition of 1 where
995 * nothing is selected
996 * beg: row/column of beginning of selection : never past mark
997 * mark: row/column of initial click : never past end
998 * end: row/column of one character past end of selection
999 * * Note: top_row <= beg.row <= mark.row <= end.row < nrow
1000 * * Note: col == -1 ==> we're left of screen
1001 *
1002 */
1003 struct screen_t
1004 {
1005 row_col_t cur; /* cursor position on the screen */
1006 int tscroll; /* top of settable scroll region */
1007 int bscroll; /* bottom of settable scroll region */
1008 unsigned int charset; /* character set number [0..3] */
1009 unsigned int flags; /* see below */
1010 row_col_t s_cur; /* saved cursor position */
1011 unsigned int s_charset; /* saved character set number [0..3] */
1012 char s_charset_char;
1013 rend_t s_rstyle; /* saved rendition style */
1014 };
1015
1016 enum selection_op_t
1017 {
1018 SELECTION_CLEAR = 0, /* nothing selected */
1019 SELECTION_INIT, /* marked a point */
1020 SELECTION_BEGIN, /* started a selection */
1021 SELECTION_CONT, /* continued selection */
1022 SELECTION_DONE /* selection put in CUT_BUFFER0 */
1023 };
1024
1025 struct selection_t
1026 {
1027 wchar_t *text; /* selected text */
1028 unsigned int len; /* length of selected text */
1029 unsigned int screen; /* screen being used */
1030 unsigned int clicks; /* number of clicks */
1031 selection_op_t op; /* current operation */
1032 bool rect; /* rectangular selection? */
1033 row_col_t beg; /* beginning of selection <= mark */
1034 row_col_t mark; /* point of initial click <= end */
1035 row_col_t end; /* one character past end point */
1036 wchar_t *clip_text; /* text copied to the clipboard */
1037 unsigned int clip_len; /* length of clipboard text */
1038 };
1039
1040 /* ------------------------------------------------------------------------- */
1041
1042 /* screen_t flags */
1043 #define Screen_Relative (1<<0) /* relative origin mode flag */
1044 #define Screen_VisibleCursor (1<<1) /* cursor visible? */
1045 #define Screen_Autowrap (1<<2) /* auto-wrap flag */
1046 #define Screen_Insert (1<<3) /* insert mode (vs. overstrike) */
1047 #define Screen_WrapNext (1<<4) /* need to wrap for next char? */
1048 #define Screen_DefaultFlags (Screen_VisibleCursor | Screen_Autowrap)
1049
1050 /* rxvt_vars.options */
1051 enum {
1052 # define def(name) Opt_ ## name,
1053 # define nodef(name) Opt_prev_ ## name, Opt_ ## name = 0, Opt_next_ ## name = Opt_prev_ ## name - 1,
1054 Opt_0,
1055 # include "optinc.h"
1056 # undef nodef
1057 # undef def
1058 Opt_count
1059 };
1060
1061 /* ------------------------------------------------------------------------- */
1062
1063 struct rxvt_vars : TermWin_t
1064 {
1065 scrollBar_t scrollBar;
1066 uint8_t options[(Opt_count + 7) >> 3];
1067 XSizeHints szHint;
1068 rxvt_color *pix_colors;
1069 Cursor TermWin_cursor; /* cursor for vt window */
1070
1071 line_t *row_buf; // all lines, scrollback + terminal, circular
1072 line_t *drawn_buf; // text on screen
1073 line_t *swap_buf; // lines for swap buffer
1074 char *tabs; /* per location: 1 == tab-stop */
1075 screen_t screen;
1076 screen_t swap;
1077 selection_t selection;
1078 rxvt_color pix_colors_focused[TOTAL_COLORS];
1079 #ifdef OFF_FOCUS_FADING
1080 rxvt_color pix_colors_unfocused[TOTAL_COLORS];
1081 #endif
1082 };
1083
1084 struct rxvt_term : zero_initialized, rxvt_vars, rxvt_screen
1085 {
1086
1087 // special markers with magic addresses
1088 static const char resval_undef []; // options specifically unset
1089 static const char resval_on []; // boolean options switched on
1090 static const char resval_off []; // or off
1091
1092 log_callback *log_hook; // log error messages through this hook, if != 0
1093 getfd_callback *getfd_hook; // convert remote to local fd, if != 0
1094 #if ENABLE_PERL
1095 rxvt_perl_term perl;
1096 #endif
1097 struct mbstate mbstate; // current input multibyte state
1098
1099 unsigned char want_refresh:1,
1100 current_screen:1, /* primary or secondary */
1101 num_scr_allow:1,
1102 bypass_keystate:1,
1103 #if ENABLE_FRILLS
1104 urgency_hint:1,
1105 #endif
1106 #if CURSOR_BLINK
1107 hidden_cursor:1,
1108 #endif
1109 #if TEXT_BLINK
1110 hidden_text:1,
1111 #endif
1112 #if POINTER_BLANK
1113 hidden_pointer:1,
1114 #endif
1115 enc_utf8:1, /* whether locale uses utf-8 */
1116 seen_input:1, /* whether we have seen some program output yet */
1117 seen_resize:1, /* whether we had a resize event */
1118 init_done:1,
1119 parsed_geometry:1;
1120
1121 unsigned char refresh_type,
1122 #ifdef META8_OPTION
1123 meta_char; /* Alt-key prefix */
1124 #endif
1125 /* ---------- */
1126 bool rvideo_state, rvideo_mode;
1127 #ifndef NO_BELL
1128 bool rvideo_bell;
1129 #endif
1130 int num_scr; /* screen: number of lines scrolled */
1131 int prev_ncol, /* screen: previous number of columns */
1132 prev_nrow; /* screen: previous number of rows */
1133 /* ---------- */
1134 rend_t rstyle;
1135 /* ---------- */
1136 #ifdef SELECTION_SCROLLING
1137 int scroll_selection_lines;
1138 int selection_save_x,
1139 selection_save_y,
1140 selection_save_state;
1141 #endif
1142 /* ---------- */
1143 int csrO, /* Hops - csr offset in thumb/slider to */
1144 /* give proper Scroll behaviour */
1145 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
1146 mouse_slip_wheel_speed,
1147 #endif
1148 refresh_count,
1149 window_vt_x,
1150 window_vt_y,
1151 mouse_row,
1152 mouse_col,
1153 # ifdef POINTER_BLANK
1154 pointerBlankDelay,
1155 # endif
1156 multiClickTime,
1157 cursor_type,
1158 allowedxerror;
1159 /* ---------- */
1160 unsigned int ModLevel3Mask,
1161 ModMetaMask,
1162 ModNumLockMask;
1163 unsigned long priv_modes,
1164 SavedModes;
1165 /* ---------- */
1166 Atom *xa;
1167 /* ---------- */
1168 Time selection_time,
1169 clipboard_time;
1170 rxvt_selection *selection_req;
1171 pid_t cmd_pid; /* process id of child */
1172 /* ---------- */
1173 struct mouse_event MEvent;
1174 XComposeStatus compose;
1175 static struct termios def_tio;
1176 row_col_t oldcursor;
1177
1178 #ifdef HAVE_IMG
1179 enum {
1180 BG_IS_TRANSPARENT = 1 << 1,
1181 BG_NEEDS_REFRESH = 1 << 2,
1182 };
1183
1184 uint8_t bg_flags;
1185
1186 rxvt_img *bg_img;
1187 #endif
1188
1189 #if ENABLE_OVERLAY
1190 overlay_base ov;
1191
1192 void scr_swap_overlay () noexcept;
1193 void scr_overlay_new (int x, int y, int w, int h) noexcept;
1194 void scr_overlay_off () noexcept;
1195 void scr_overlay_set (int x, int y,
1196 text_t text,
1197 rend_t rend = OVERLAY_RSTYLE) noexcept;
1198 void scr_overlay_set (int x, int y, const char *s) noexcept;
1199 void scr_overlay_set (int x, int y, const wchar_t *s) noexcept;
1200 #endif
1201
1202 vector<void *> allocated; // free these memory blocks with free()
1203
1204 int parent_x, parent_y; // parent window position relative to root, only updated on demand
1205
1206 char *locale;
1207 char charsets[4];
1208 char *v_buffer; /* pointer to physical buffer */
1209 unsigned int v_buflen; /* size of area to write */
1210 stringvec *argv, *envv; /* if != 0, will be freed at destroy time */
1211 char **env;
1212
1213 #ifdef KEYSYM_RESOURCE
1214 keyboard_manager *keyboard;
1215 #endif
1216 #ifndef NO_RESOURCES
1217 XrmDatabase option_db;
1218 #endif
1219
1220 const char *rs[NUM_RESOURCES];
1221 /* command input buffering */
1222 char *cmdbuf_ptr, *cmdbuf_endp;
1223 char cmdbuf_base[CBUFSIZ];
1224
1225 ptytty *pty;
1226
1227 // chunk contains all line_t's as well as rend_t and text_t buffers
1228 // for drawn_buf, swap_buf and row_buf, in this order
1229 void *chunk;
1230 size_t chunk_size;
1231
1232 uint32_t rgb24_color[RGB24_CUBE_SIZE]; // the 24-bit color value
1233 uint16_t rgb24_seqno[RGB24_CUBE_SIZE]; // which one is older?
1234 uint16_t rgb24_sequence;
1235
1236 static vector<rxvt_term *> termlist; // a vector of all running rxvt_term's
1237
1238 #if ENABLE_FRILLS || ISO_14755
1239 // ISO 14755 entry support
1240 unicode_t iso14755buf;
1241 void commit_iso14755 ();
1242 # if ISO_14755
1243 void iso14755_51 (unicode_t ch, rend_t r = DEFAULT_RSTYLE, int x = 0, int y = -1, int y2 = -1);
1244 void iso14755_54 (int x, int y);
1245 # endif
1246 #endif
1247
1248 long vt_emask, vt_emask_perl, vt_emask_xim, vt_emask_mouse;
1249
1250 void vt_select_input () const noexcept
1251 {
1252 XSelectInput (dpy, vt, vt_emask | vt_emask_perl | vt_emask_xim | vt_emask_mouse);
1253 }
1254
1255 #if ENABLE_PERL
1256 void rootwin_cb (XEvent &xev);
1257 xevent_watcher rootwin_ev;
1258 #endif
1259
1260 void x_cb (XEvent &xev);
1261 xevent_watcher termwin_ev;
1262 xevent_watcher vt_ev;
1263 xevent_watcher scrollbar_ev;
1264
1265 void child_cb (ev::child &w, int revents); ev::child child_ev;
1266 void destroy_cb (ev::idle &w, int revents); ev::idle destroy_ev;
1267 void refresh_check ();
1268 void flush ();
1269 void flush_cb (ev::timer &w, int revents); ev::timer flush_ev;
1270 void cmdbuf_reify ();
1271 void cmdbuf_append (const char *str, size_t count);
1272 bool pty_fill ();
1273 void pty_cb (ev::io &w, int revents); ev::io pty_ev;
1274
1275 #ifdef CURSOR_BLINK
1276 void cursor_blink_reset ();
1277 void cursor_blink_cb (ev::timer &w, int revents); ev::timer cursor_blink_ev;
1278 #endif
1279 #ifdef TEXT_BLINK
1280 void text_blink_cb (ev::timer &w, int revents); ev::timer text_blink_ev;
1281 #endif
1282 #ifndef NO_BELL
1283 void bell_cb (ev::timer &w, int revents); ev::timer bell_ev;
1284 #endif
1285
1286 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
1287 void cont_scroll_cb (ev::timer &w, int revents); ev::timer cont_scroll_ev;
1288 #endif
1289 #ifdef SELECTION_SCROLLING
1290 void sel_scroll_cb (ev::timer &w, int revents); ev::timer sel_scroll_ev;
1291 #endif
1292 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
1293 void slip_wheel_cb (ev::timer &w, int revents); ev::timer slip_wheel_ev;
1294 #endif
1295
1296 #ifdef POINTER_BLANK
1297 void pointer_cb (ev::timer &w, int revents); ev::timer pointer_ev;
1298 void pointer_blank ();
1299 #endif
1300 void pointer_unblank ();
1301
1302 void tt_printf (const char *fmt,...);
1303 void tt_write_ (const char *data, unsigned int len);
1304 void tt_write (const char *data, unsigned int len);
1305 void tt_write_user_input (const char *data, unsigned int len);
1306 void pty_write ();
1307
1308 void make_current () const // make this the "currently active" urxvt instance
1309 {
1310 SET_R (this);
1311 set_environ (env);
1312 rxvt_set_locale (locale);
1313 }
1314
1315 #if USE_XIM
1316 rxvt_xim *input_method;
1317 XIC Input_Context;
1318 XIMStyle input_style;
1319 XPoint spot; // most recently sent spot position
1320
1321 void im_destroy ();
1322 void im_cb (); im_watcher im_ev;
1323 void im_set_size (XRectangle &size);
1324 void im_set_position (XPoint &pos) noexcept;
1325 void im_set_color (unsigned long &fg, unsigned long &bg);
1326 void im_set_preedit_area (XRectangle &preedit_rect, XRectangle &status_rect, const XRectangle &needed_rect);
1327
1328 bool im_is_running ();
1329 void im_send_spot ();
1330 bool im_get_ic (const char *modifiers);
1331 void im_set_position ();
1332 #endif
1333
1334 // command.C
1335 void key_press (XKeyEvent &ev);
1336 void key_release (XKeyEvent &ev);
1337
1338 wchar_t next_char () noexcept;
1339 wchar_t cmd_getc ();
1340 uint32_t next_octet () noexcept;
1341 uint32_t cmd_get8 ();
1342
1343 void cmd_parse ();
1344 void mouse_report (XButtonEvent &ev);
1345 void button_press (XButtonEvent &ev);
1346 void button_release (XButtonEvent &ev);
1347 void focus_in ();
1348 void focus_out ();
1349 #if ENABLE_FRILLS
1350 void set_urgency (bool enable);
1351 #else
1352 void set_urgency (bool enable) { }
1353 #endif
1354 void update_fade_color (unsigned int idx, bool first_time = false);
1355 #ifdef PRINTPIPE
1356 FILE *popen_printer ();
1357 int pclose_printer (FILE *stream);
1358 #endif
1359 void process_print_pipe ();
1360 void process_nonprinting (unicode_t ch);
1361 void process_escape_vt52 (unicode_t ch);
1362 void process_escape_seq ();
1363 void process_csi_seq ();
1364 void process_window_ops (const int *args, unsigned int nargs);
1365 char *get_to_st (unicode_t &ends_how);
1366 void process_dcs_seq ();
1367 void process_osc_seq ();
1368 void process_color_seq (int report, int color, const char *str, char resp);
1369 void process_xterm_seq (int op, char *str, char resp);
1370 unsigned int map_rgb24_color (unsigned int r, unsigned int g, unsigned int b, unsigned int a);
1371 int privcases (int mode, unsigned long bit);
1372 void process_terminal_mode (int mode, int priv, unsigned int nargs, const int *arg);
1373 void process_sgr_mode (unsigned int nargs, const int *arg);
1374 void set_cursor_style (int style);
1375 // init.C
1376 void init (stringvec *argv, stringvec *envv);
1377 void init (int argc, const char *const *argv, const char *const *envv);
1378 void init2 (int argc, const char *const *argv);
1379 void init_vars ();
1380 const char **init_resources (int argc, const char *const *argv);
1381 void init_env ();
1382 void set_locale (const char *locale);
1383 void init_xlocale ();
1384 void init_command (const char *const *argv);
1385 void run_command (const char *const *argv);
1386 int run_child (const char *const *argv);
1387 void color_aliases (int idx);
1388 void create_windows (int argc, const char *const *argv);
1389 void get_colors ();
1390 void get_ourmods ();
1391 void set_icon (const char *file);
1392 // main.C
1393 void tt_winch ();
1394 rxvt_term ();
1395 ~rxvt_term ();
1396 void destroy ();
1397 void emergency_cleanup ();
1398 void recolor_cursor ();
1399 void resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent);
1400 void window_calc (unsigned int newwidth, unsigned int newheight);
1401 bool set_fonts ();
1402 void set_string_property (Atom prop, const char *str, int len = -1);
1403 void set_mbstring_property (Atom prop, const char *str, int len = -1);
1404 void set_utf8_property (Atom prop, const char *str, int len = -1);
1405 void set_title (const char *str);
1406 void set_icon_name (const char *str);
1407 void set_window_color (int idx, const char *color);
1408 char *get_colorfgbg ();
1409 bool set_color (rxvt_color &color, const char *name);
1410 void alias_color (int dst, int src);
1411 void set_widthheight (unsigned int newwidth, unsigned int newheight);
1412 void get_window_origin (int &x, int &y);
1413
1414 // screen.C
1415
1416 bool option (uint8_t opt) const noexcept
1417 {
1418 return options[opt >> 3] & (1 << (opt & 7));
1419 }
1420
1421 void set_option (uint8_t opt, bool set = true) noexcept;
1422
1423 int fgcolor_of (rend_t r) const noexcept
1424 {
1425 int base = GET_BASEFG (r);
1426 #ifndef NO_BRIGHTCOLOR
1427 if (r & RS_Bold
1428 # if ENABLE_STYLES
1429 && option (Opt_intensityStyles)
1430 # endif
1431 && IN_RANGE_EXC (base, minCOLOR, minBrightCOLOR))
1432 base += minBrightCOLOR - minCOLOR;
1433 #endif
1434 return base;
1435 }
1436
1437 int bgcolor_of (rend_t r) const noexcept
1438 {
1439 int base = GET_BASEBG (r);
1440 #ifndef NO_BRIGHTCOLOR
1441 if (r & RS_Blink
1442 # if ENABLE_STYLES
1443 && option (Opt_intensityStyles)
1444 # endif
1445 && IN_RANGE_EXC (base, minCOLOR, minBrightCOLOR))
1446 base += minBrightCOLOR - minCOLOR;
1447 #endif
1448 return base;
1449 }
1450
1451 // modifies first argument(!)
1452 void tt_paste (char *data, unsigned int len) noexcept;
1453 void paste (char *data, unsigned int len) noexcept;
1454 void scr_alloc () noexcept;
1455 void scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const noexcept;
1456 void scr_blank_screen_mem (line_t &l, rend_t efs) const noexcept;
1457 void scr_kill_char (line_t &l, int col) const noexcept;
1458 void scr_set_char_rend (line_t &l, int col, rend_t rend);
1459 int scr_scroll_text (int row1, int row2, int count) noexcept;
1460 void copy_line (line_t &dst, line_t &src);
1461 void scr_reset ();
1462 void scr_release () noexcept;
1463 void scr_clear (bool really = false) noexcept;
1464 void scr_refresh () noexcept;
1465 bool scr_refresh_rend (rend_t mask, rend_t value) noexcept;
1466 void scr_erase_screen (int mode) noexcept;
1467 #if ENABLE_FRILLS
1468 void scr_erase_savelines () noexcept;
1469 void scr_backindex () noexcept;
1470 void scr_forwardindex () noexcept;
1471 #endif
1472 void scr_touch (bool refresh) noexcept;
1473 void scr_expose (int x, int y, int width, int height, bool refresh) noexcept;
1474 void scr_recolor (bool refresh = true) noexcept;
1475 void scr_remap_chars () noexcept;
1476 void scr_remap_chars (line_t &l) noexcept;
1477
1478 enum cursor_mode { SAVE, RESTORE };
1479
1480 void scr_poweron ();
1481 void scr_soft_reset () noexcept;
1482 void scr_cursor (cursor_mode mode) noexcept;
1483 void scr_do_wrap () noexcept;
1484 void scr_swap_screen () noexcept;
1485 void scr_change_screen (int scrn);
1486 void scr_color (unsigned int color, int fgbg) noexcept;
1487 void scr_rendition (int set, int style) noexcept;
1488 void scr_add_lines (const wchar_t *str, int len, int minlines = 0) noexcept;
1489 void scr_backspace () noexcept;
1490 void scr_tab (int count, bool ht = false) noexcept;
1491 void scr_gotorc (int row, int col, int relative) noexcept;
1492 void scr_index (enum page_dirn direction) noexcept;
1493 void scr_erase_line (int mode) noexcept;
1494 void scr_E () noexcept;
1495 void scr_insdel_lines (int count, int insdel) noexcept;
1496 void scr_insdel_chars (int count, int insdel) noexcept;
1497 void scr_scroll_region (int top, int bot) noexcept;
1498 void scr_cursor_visible (int mode) noexcept;
1499 void scr_autowrap (int mode) noexcept;
1500 void scr_relative_origin (int mode) noexcept;
1501 void scr_insert_mode (int mode) noexcept;
1502 void scr_set_tab (int mode) noexcept;
1503 void scr_rvideo_mode (bool on) noexcept;
1504 void scr_report_position () noexcept;
1505 void set_font_style () noexcept;
1506 void scr_charset_choose (int set) noexcept;
1507 void scr_charset_set (int set, unsigned int ch) noexcept;
1508 void scr_move_to (int y, int len) noexcept;
1509 bool scr_page (int nlines) noexcept;
1510 bool scr_page (enum page_dirn direction, int nlines) noexcept
1511 {
1512 return scr_page (direction * nlines);
1513 }
1514 bool scr_changeview (int new_view_start) noexcept;
1515 void scr_bell () noexcept;
1516 void scr_printscreen (int fullhist) noexcept;
1517 void scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) noexcept;
1518 void scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) noexcept;
1519 void scr_reverse_selection () noexcept;
1520 void scr_dump (int fd) noexcept;
1521
1522 void selection_check (int check_more) noexcept;
1523 void selection_changed () noexcept; /* sets want_refresh, corrects coordinates */
1524 void selection_request (Time tm, int selnum = Sel_Primary) noexcept;
1525 void selection_clear (bool clipboard = false) noexcept;
1526 void selection_make (Time tm);
1527 bool selection_grab (Time tm, bool clipboard = false) noexcept;
1528 void selection_start_colrow (int col, int row) noexcept;
1529 void selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) noexcept;
1530 void selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) noexcept;
1531 void selection_remove_trailing_spaces () noexcept;
1532 void selection_send (const XSelectionRequestEvent &rq) noexcept;
1533 void selection_click (int clicks, int x, int y) noexcept;
1534 void selection_extend (int x, int y, int flag) noexcept;
1535 void selection_rotate (int x, int y) noexcept;
1536
1537 // xdefaults.C
1538 void rxvt_usage (int type);
1539 const char **get_options (int argc, const char *const *argv);
1540 int parse_keysym (const char *str, unsigned int &state);
1541 int bind_action (const char *str, const char *arg);
1542 const char *x_resource (const char *name);
1543 void extract_resources ();
1544 void enumerate_resources (void (*cb)(rxvt_term *, const char *, const char *), const char *name_p = 0, const char *class_p = 0);
1545 void enumerate_keysym_resources (void (*cb)(rxvt_term *, const char *, const char *))
1546 {
1547 enumerate_resources (cb, "keysym", "Keysym");
1548 }
1549 void extract_keysym_resources ();
1550 };
1551
1552 #endif /* _RXVT_H_ */
1553