1 /*
2 * NOTE: This is a MODIFIED version of libvterm, see the README file.
3 */
4 #ifndef __VTERM_H__
5 #define __VTERM_H__
6
7 #ifdef __cplusplus
8 extern "C" {
9 #endif
10
11 #include <stdlib.h>
12
13 #include "vterm_keycodes.h"
14
15 #define TRUE 1
16 #define FALSE 0
17
18 // from stdint.h
19 typedef unsigned char uint8_t;
20 typedef unsigned int uint32_t;
21
22 #define VTERM_VERSION_MAJOR 0
23 #define VTERM_VERSION_MINOR 1
24
25 #define VTERM_CHECK_VERSION \
26 vterm_check_version(VTERM_VERSION_MAJOR, VTERM_VERSION_MINOR)
27
28 typedef struct VTerm VTerm;
29 typedef struct VTermState VTermState;
30 typedef struct VTermScreen VTermScreen;
31
32 // Specifies a screen point.
33 typedef struct {
34 int row;
35 int col;
36 } VTermPos;
37
38 /* some small utility functions; we can just keep these static here */
39
40 /*
41 * Order points by on-screen flow order:
42 * Return < 0 if "a" is before "b"
43 * Return 0 if "a" and "b" are equal
44 * Return > 0 if "a" is after "b".
45 */
46 int vterm_pos_cmp(VTermPos a, VTermPos b);
47
48 #if defined(DEFINE_INLINES) || USE_INLINE
vterm_pos_cmp(VTermPos a,VTermPos b)49 INLINE int vterm_pos_cmp(VTermPos a, VTermPos b)
50 {
51 return (a.row == b.row) ? a.col - b.col : a.row - b.row;
52 }
53 #endif
54
55 // Specifies a rectangular screen area.
56 typedef struct {
57 int start_row;
58 int end_row;
59 int start_col;
60 int end_col;
61 } VTermRect;
62
63 /* true if the rect contains the point */
64 int vterm_rect_contains(VTermRect r, VTermPos p);
65
66 #if defined(DEFINE_INLINES) || USE_INLINE
vterm_rect_contains(VTermRect r,VTermPos p)67 INLINE int vterm_rect_contains(VTermRect r, VTermPos p)
68 {
69 return p.row >= r.start_row && p.row < r.end_row &&
70 p.col >= r.start_col && p.col < r.end_col;
71 }
72 #endif
73
74 /* move a rect */
75 // Move "rect" "row_delta" down and "col_delta" right.
76 // Does not check boundaries.
77 void vterm_rect_move(VTermRect *rect, int row_delta, int col_delta);
78
79 #if defined(DEFINE_INLINES) || USE_INLINE
vterm_rect_move(VTermRect * rect,int row_delta,int col_delta)80 INLINE void vterm_rect_move(VTermRect *rect, int row_delta, int col_delta)
81 {
82 rect->start_row += row_delta; rect->end_row += row_delta;
83 rect->start_col += col_delta; rect->end_col += col_delta;
84 }
85 #endif
86
87 /**
88 * Bit-field describing the value of VTermColor.type
89 */
90 typedef enum {
91 /**
92 * If the lower bit of `type` is not set, the colour is 24-bit RGB.
93 */
94 VTERM_COLOR_RGB = 0x00,
95
96 /**
97 * The colour is an index into a palette of 256 colours.
98 */
99 VTERM_COLOR_INDEXED = 0x01,
100
101 /**
102 * Mask that can be used to extract the RGB/Indexed bit.
103 */
104 VTERM_COLOR_TYPE_MASK = 0x01,
105
106 /**
107 * If set, indicates that this colour should be the default foreground
108 * color, i.e. there was no SGR request for another colour. When
109 * rendering this colour it is possible to ignore "idx" and just use a
110 * colour that is not in the palette.
111 */
112 VTERM_COLOR_DEFAULT_FG = 0x02,
113
114 /**
115 * If set, indicates that this colour should be the default background
116 * color, i.e. there was no SGR request for another colour. A common
117 * option when rendering this colour is to not render a background at
118 * all, for example by rendering the window transparently at this spot.
119 */
120 VTERM_COLOR_DEFAULT_BG = 0x04,
121
122 /**
123 * Mask that can be used to extract the default foreground/background bit.
124 */
125 VTERM_COLOR_DEFAULT_MASK = 0x06,
126
127 /**
128 * If set, indicates that the color is invalid.
129 */
130 VTERM_COLOR_INVALID = 0x08
131 } VTermColorType;
132
133 /**
134 * Returns true if the VTERM_COLOR_RGB `type` flag is set, indicating that the
135 * given VTermColor instance is an indexed colour.
136 */
137 #define VTERM_COLOR_IS_INDEXED(col) \
138 (((col)->type & VTERM_COLOR_TYPE_MASK) == VTERM_COLOR_INDEXED)
139
140 /**
141 * Returns true if the VTERM_COLOR_INDEXED `type` flag is set, indicating that
142 * the given VTermColor instance is an rgb colour.
143 */
144 #define VTERM_COLOR_IS_RGB(col) \
145 (((col)->type & VTERM_COLOR_TYPE_MASK) == VTERM_COLOR_RGB)
146
147 /**
148 * Returns true if the VTERM_COLOR_DEFAULT_FG `type` flag is set, indicating
149 * that the given VTermColor instance corresponds to the default foreground
150 * color.
151 */
152 #define VTERM_COLOR_IS_DEFAULT_FG(col) \
153 (!!((col)->type & VTERM_COLOR_DEFAULT_FG))
154
155 /**
156 * Returns true if the VTERM_COLOR_DEFAULT_BG `type` flag is set, indicating
157 * that the given VTermColor instance corresponds to the default background
158 * color.
159 */
160 #define VTERM_COLOR_IS_DEFAULT_BG(col) \
161 (!!((col)->type & VTERM_COLOR_DEFAULT_BG))
162
163 /**
164 * Returns true if the VTERM_COLOR_INVALID `type` flag is set, indicating
165 * that the given VTermColor instance is an invalid color.
166 */
167 #define VTERM_COLOR_IS_INVALID(col) (!!((col)->type & VTERM_COLOR_INVALID))
168
169 typedef struct {
170 /**
171 * Tag indicating which member is actually valid.
172 * Please use the `VTERM_COLOR_IS_*` test macros to check whether a
173 * particular type flag is set.
174 */
175 uint8_t type;
176
177 uint8_t red, green, blue;
178
179 uint8_t index;
180 } VTermColor;
181
182 /**
183 * Constructs a new VTermColor instance representing the given RGB values.
184 */
185 void vterm_color_rgb(VTermColor *col, uint8_t red, uint8_t green, uint8_t blue);
186
187 /**
188 * Construct a new VTermColor instance representing an indexed color with the
189 * given index.
190 */
191 void vterm_color_indexed(VTermColor *col, uint8_t idx);
192
193 /**
194 * Compares two colours. Returns true if the colors are equal, false otherwise.
195 */
196 int vterm_color_is_equal(const VTermColor *a, const VTermColor *b);
197
198 typedef enum {
199 /* VTERM_VALUETYPE_NONE = 0 */
200 VTERM_VALUETYPE_BOOL = 1,
201 VTERM_VALUETYPE_INT,
202 VTERM_VALUETYPE_STRING,
203 VTERM_VALUETYPE_COLOR,
204
205 VTERM_N_VALUETYPES
206 } VTermValueType;
207
208 typedef struct {
209 const char *str;
210 size_t len : 30;
211 unsigned int initial : 1;
212 unsigned int final : 1;
213 } VTermStringFragment;
214
215 typedef union {
216 int boolean;
217 int number;
218 VTermStringFragment string;
219 VTermColor color;
220 } VTermValue;
221
222 typedef enum {
223 /* VTERM_ATTR_NONE = 0 */
224 VTERM_ATTR_BOLD = 1, // bool: 1, 22
225 VTERM_ATTR_UNDERLINE, // number: 4, 21, 24
226 VTERM_ATTR_ITALIC, // bool: 3, 23
227 VTERM_ATTR_BLINK, // bool: 5, 25
228 VTERM_ATTR_REVERSE, // bool: 7, 27
229 VTERM_ATTR_CONCEAL, // bool: 8, 28
230 VTERM_ATTR_STRIKE, // bool: 9, 29
231 VTERM_ATTR_FONT, // number: 10-19
232 VTERM_ATTR_FOREGROUND, // color: 30-39 90-97
233 VTERM_ATTR_BACKGROUND, // color: 40-49 100-107
234
235 VTERM_N_ATTRS
236 } VTermAttr;
237
238 typedef enum {
239 /* VTERM_PROP_NONE = 0 */
240 VTERM_PROP_CURSORVISIBLE = 1, // bool
241 VTERM_PROP_CURSORBLINK, // bool
242 VTERM_PROP_ALTSCREEN, // bool
243 VTERM_PROP_TITLE, // string
244 VTERM_PROP_ICONNAME, // string
245 VTERM_PROP_REVERSE, // bool
246 VTERM_PROP_CURSORSHAPE, // number
247 VTERM_PROP_MOUSE, // number
248 VTERM_PROP_CURSORCOLOR, // string
249
250 VTERM_N_PROPS
251 } VTermProp;
252
253 enum {
254 VTERM_PROP_CURSORSHAPE_BLOCK = 1,
255 VTERM_PROP_CURSORSHAPE_UNDERLINE,
256 VTERM_PROP_CURSORSHAPE_BAR_LEFT,
257
258 VTERM_N_PROP_CURSORSHAPES
259 };
260
261 enum {
262 VTERM_PROP_MOUSE_NONE = 0,
263 VTERM_PROP_MOUSE_CLICK,
264 VTERM_PROP_MOUSE_DRAG,
265 VTERM_PROP_MOUSE_MOVE,
266
267 VTERM_N_PROP_MOUSES
268 };
269
270 typedef struct {
271 const uint32_t *chars;
272 int width;
273 unsigned int protected_cell:1; /* DECSCA-protected against DECSEL/DECSED */
274 unsigned int dwl:1; /* DECDWL or DECDHL double-width line */
275 unsigned int dhl:2; /* DECDHL double-height line (1=top 2=bottom) */
276 } VTermGlyphInfo;
277
278 typedef struct {
279 unsigned int doublewidth:1; /* DECDWL or DECDHL line */
280 unsigned int doubleheight:2; /* DECDHL line (1=top 2=bottom) */
281 unsigned int continuation:1; /* Line is a flow continuation of the previous */
282 } VTermLineInfo;
283
284 /* Copies of VTermState fields that the 'resize' callback might have reason to
285 * edit. 'resize' callback gets total control of these fields and may
286 * free-and-reallocate them if required. They will be copied back from the
287 * struct after the callback has returned.
288 */
289 typedef struct {
290 VTermPos pos; /* current cursor position */
291 } VTermStateFields;
292
293 typedef struct {
294 /* libvterm relies on this memory to be zeroed out before it is returned
295 * by the allocator. */
296 void *(*malloc)(size_t size, void *allocdata);
297 void (*free)(void *ptr, void *allocdata);
298 } VTermAllocatorFunctions;
299
300 void vterm_check_version(int major, int minor);
301
302 // Allocate and initialize a new terminal with default allocators.
303 VTerm *vterm_new(int rows, int cols);
304
305 // Allocate and initialize a new terminal with specified allocators.
306 VTerm *vterm_new_with_allocator(int rows, int cols, VTermAllocatorFunctions *funcs, void *allocdata);
307
308 // Free and cleanup a terminal and all its data.
309 void vterm_free(VTerm* vt);
310
311 // Get the current size of the terminal and store in "rowsp" and "colsp".
312 void vterm_get_size(const VTerm *vt, int *rowsp, int *colsp);
313
314 void vterm_set_size(VTerm *vt, int rows, int cols);
315
316 int vterm_get_utf8(const VTerm *vt);
317 void vterm_set_utf8(VTerm *vt, int is_utf8);
318
319 size_t vterm_input_write(VTerm *vt, const char *bytes, size_t len);
320
321 /* Setting output callback will override the buffer logic */
322 typedef void VTermOutputCallback(const char *s, size_t len, void *user);
323 void vterm_output_set_callback(VTerm *vt, VTermOutputCallback *func, void *user);
324
325 /* These buffer functions only work if output callback is NOT set
326 * These are deprecated and will be removed in a later version */
327 size_t vterm_output_get_buffer_size(const VTerm *vt);
328 size_t vterm_output_get_buffer_current(const VTerm *vt);
329 size_t vterm_output_get_buffer_remaining(const VTerm *vt);
330
331 /* This too */
332 size_t vterm_output_read(VTerm *vt, char *buffer, size_t len);
333
334 int vterm_is_modify_other_keys(VTerm *vt);
335 void vterm_keyboard_unichar(VTerm *vt, uint32_t c, VTermModifier mod);
336 void vterm_keyboard_key(VTerm *vt, VTermKey key, VTermModifier mod);
337
338 void vterm_keyboard_start_paste(VTerm *vt);
339 void vterm_keyboard_end_paste(VTerm *vt);
340
341 void vterm_mouse_move(VTerm *vt, int row, int col, VTermModifier mod);
342 // "button" is 1 for left, 2 for middle, 3 for right.
343 // Button 4 is scroll wheel down, button 5 is scroll wheel up.
344 void vterm_mouse_button(VTerm *vt, int button, int pressed, VTermModifier mod);
345
346 // ------------
347 // Parser layer
348 // ------------
349
350 /* Flag to indicate non-final subparameters in a single CSI parameter.
351 * Consider
352 * CSI 1;2:3:4;5a
353 * 1 4 and 5 are final.
354 * 2 and 3 are non-final and will have this bit set
355 *
356 * Don't confuse this with the final byte of the CSI escape; 'a' in this case.
357 */
358 #define CSI_ARG_FLAG_MORE (1U<<31)
359 #define CSI_ARG_MASK (~(1U<<31))
360
361 #define CSI_ARG_HAS_MORE(a) ((a) & CSI_ARG_FLAG_MORE)
362 #define CSI_ARG(a) ((a) & CSI_ARG_MASK)
363
364 /* Can't use -1 to indicate a missing argument; use this instead */
365 #define CSI_ARG_MISSING ((1<<30)-1)
366
367 #define CSI_ARG_IS_MISSING(a) (CSI_ARG(a) == CSI_ARG_MISSING)
368 #define CSI_ARG_OR(a,def) (CSI_ARG(a) == CSI_ARG_MISSING ? (def) : CSI_ARG(a))
369 #define CSI_ARG_COUNT(a) (CSI_ARG(a) == CSI_ARG_MISSING || CSI_ARG(a) == 0 ? 1 : CSI_ARG(a))
370
371 typedef struct {
372 int (*text)(const char *bytes, size_t len, void *user);
373 int (*control)(unsigned char control, void *user);
374 int (*escape)(const char *bytes, size_t len, void *user);
375 int (*csi)(const char *leader, const long args[], int argcount, const char *intermed, char command, void *user);
376 int (*osc)(int command, VTermStringFragment frag, void *user);
377 int (*dcs)(const char *command, size_t commandlen, VTermStringFragment frag, void *user);
378 int (*resize)(int rows, int cols, void *user);
379 } VTermParserCallbacks;
380
381 void vterm_parser_set_callbacks(VTerm *vt, const VTermParserCallbacks *callbacks, void *user);
382 void *vterm_parser_get_cbdata(VTerm *vt);
383
384 // -----------
385 // State layer
386 // -----------
387
388 typedef struct {
389 int (*putglyph)(VTermGlyphInfo *info, VTermPos pos, void *user);
390 int (*movecursor)(VTermPos pos, VTermPos oldpos, int visible, void *user);
391 int (*scrollrect)(VTermRect rect, int downward, int rightward, void *user);
392 int (*moverect)(VTermRect dest, VTermRect src, void *user);
393 int (*erase)(VTermRect rect, int selective, void *user);
394 int (*initpen)(void *user);
395 int (*setpenattr)(VTermAttr attr, VTermValue *val, void *user);
396 // Callback for setting various properties. Must return 1 if the property
397 // was accepted, 0 otherwise.
398 int (*settermprop)(VTermProp prop, VTermValue *val, void *user);
399 int (*bell)(void *user);
400 int (*resize)(int rows, int cols, VTermStateFields *fields, void *user);
401 int (*setlineinfo)(int row, const VTermLineInfo *newinfo, const VTermLineInfo *oldinfo, void *user);
402 } VTermStateCallbacks;
403
404 typedef struct {
405 VTermPos pos;
406 int buttons;
407 #define MOUSE_BUTTON_LEFT 0x01
408 #define MOUSE_BUTTON_MIDDLE 0x02
409 #define MOUSE_BUTTON_RIGHT 0x04
410 int flags;
411 #define MOUSE_WANT_CLICK 0x01
412 #define MOUSE_WANT_DRAG 0x02
413 #define MOUSE_WANT_MOVE 0x04
414 // useful to add protocol?
415 } VTermMouseState;
416
417 typedef struct {
418 int (*control)(unsigned char control, void *user);
419 int (*csi)(const char *leader, const long args[], int argcount, const char *intermed, char command, void *user);
420 int (*osc)(int command, VTermStringFragment frag, void *user);
421 int (*dcs)(const char *command, size_t commandlen, VTermStringFragment frag, void *user);
422 } VTermStateFallbacks;
423
424 VTermState *vterm_obtain_state(VTerm *vt);
425
426 void vterm_state_set_callbacks(VTermState *state, const VTermStateCallbacks *callbacks, void *user);
427 void *vterm_state_get_cbdata(VTermState *state);
428
429 void vterm_state_set_unrecognised_fallbacks(VTermState *state, const VTermStateFallbacks *fallbacks, void *user);
430 void *vterm_state_get_unrecognised_fbdata(VTermState *state);
431
432 // Initialize the state.
433 void vterm_state_reset(VTermState *state, int hard);
434
435 void vterm_state_get_cursorpos(const VTermState *state, VTermPos *cursorpos);
436 void vterm_state_get_mousestate(const VTermState *state, VTermMouseState *mousestate);
437 void vterm_state_get_default_colors(const VTermState *state, VTermColor *default_fg, VTermColor *default_bg);
438 void vterm_state_get_palette_color(const VTermState *state, int index, VTermColor *col);
439 void vterm_state_set_default_colors(VTermState *state, const VTermColor *default_fg, const VTermColor *default_bg);
440 void vterm_state_set_palette_color(VTermState *state, int index, const VTermColor *col);
441 void vterm_state_set_bold_highbright(VTermState *state, int bold_is_highbright);
442 int vterm_state_get_penattr(const VTermState *state, VTermAttr attr, VTermValue *val);
443 int vterm_state_set_termprop(VTermState *state, VTermProp prop, VTermValue *val);
444 void vterm_state_focus_in(VTermState *state);
445 void vterm_state_focus_out(VTermState *state);
446 const VTermLineInfo *vterm_state_get_lineinfo(const VTermState *state, int row);
447
448 /**
449 * Makes sure that the given color `col` is indeed an RGB colour. After this
450 * function returns, VTERM_COLOR_IS_RGB(col) will return true, while all other
451 * flags stored in `col->type` will have been reset.
452 *
453 * @param state is the VTermState instance from which the colour palette should
454 * be extracted.
455 * @param col is a pointer at the VTermColor instance that should be converted
456 * to an RGB colour.
457 */
458 void vterm_state_convert_color_to_rgb(const VTermState *state, VTermColor *col);
459
460 // ------------
461 // Screen layer
462 // ------------
463
464 typedef struct {
465 unsigned int bold : 1;
466 unsigned int underline : 2;
467 unsigned int italic : 1;
468 unsigned int blink : 1;
469 unsigned int reverse : 1;
470 unsigned int conceal : 1;
471 unsigned int strike : 1;
472 unsigned int font : 4; /* 0 to 9 */
473 unsigned int dwl : 1; /* On a DECDWL or DECDHL line */
474 unsigned int dhl : 2; /* On a DECDHL line (1=top 2=bottom) */
475 } VTermScreenCellAttrs;
476
477 enum {
478 VTERM_UNDERLINE_OFF,
479 VTERM_UNDERLINE_SINGLE,
480 VTERM_UNDERLINE_DOUBLE,
481 VTERM_UNDERLINE_CURLY,
482 };
483
484 typedef struct {
485 #define VTERM_MAX_CHARS_PER_CELL 6
486 uint32_t chars[VTERM_MAX_CHARS_PER_CELL];
487 char width;
488 VTermScreenCellAttrs attrs;
489 VTermColor fg, bg;
490 } VTermScreenCell;
491
492 // All fields are optional, NULL when not used.
493 typedef struct {
494 int (*damage)(VTermRect rect, void *user);
495 int (*moverect)(VTermRect dest, VTermRect src, void *user);
496 int (*movecursor)(VTermPos pos, VTermPos oldpos, int visible, void *user);
497 int (*settermprop)(VTermProp prop, VTermValue *val, void *user);
498 int (*bell)(void *user);
499 int (*resize)(int rows, int cols, void *user);
500 // A line was pushed off the top of the window.
501 // "cells[cols]" contains the cells of that line.
502 // Return value is unused.
503 int (*sb_pushline)(int cols, const VTermScreenCell *cells, void *user);
504 int (*sb_popline)(int cols, VTermScreenCell *cells, void *user);
505 } VTermScreenCallbacks;
506
507 // Return the screen of the vterm.
508 VTermScreen *vterm_obtain_screen(VTerm *vt);
509
510 /*
511 * Install screen callbacks. These are invoked when the screen contents is
512 * changed. "user" is passed into to the callback.
513 */
514 void vterm_screen_set_callbacks(VTermScreen *screen, const VTermScreenCallbacks *callbacks, void *user);
515 void *vterm_screen_get_cbdata(VTermScreen *screen);
516
517 void vterm_screen_set_unrecognised_fallbacks(VTermScreen *screen, const VTermStateFallbacks *fallbacks, void *user);
518 void *vterm_screen_get_unrecognised_fbdata(VTermScreen *screen);
519
520 // Enable support for using the alternate screen if "altscreen" is non-zero.
521 // Before that switching to the alternate screen won't work.
522 // Calling with "altscreen" zero has no effect.
523 void vterm_screen_enable_altscreen(VTermScreen *screen, int altscreen);
524
525 typedef enum {
526 VTERM_DAMAGE_CELL, /* every cell */
527 VTERM_DAMAGE_ROW, /* entire rows */
528 VTERM_DAMAGE_SCREEN, /* entire screen */
529 VTERM_DAMAGE_SCROLL, /* entire screen + scrollrect */
530
531 VTERM_N_DAMAGES
532 } VTermDamageSize;
533
534 // Invoke the relevant callbacks to update the screen.
535 void vterm_screen_flush_damage(VTermScreen *screen);
536
537 void vterm_screen_set_damage_merge(VTermScreen *screen, VTermDamageSize size);
538
539 /*
540 * Reset the screen. Also invokes vterm_state_reset().
541 * Must be called before the terminal can be used.
542 */
543 void vterm_screen_reset(VTermScreen *screen, int hard);
544
545 /* Neither of these functions NUL-terminate the buffer */
546 size_t vterm_screen_get_chars(const VTermScreen *screen, uint32_t *chars, size_t len, const VTermRect rect);
547 size_t vterm_screen_get_text(const VTermScreen *screen, char *str, size_t len, const VTermRect rect);
548
549 typedef enum {
550 VTERM_ATTR_BOLD_MASK = 1 << 0,
551 VTERM_ATTR_UNDERLINE_MASK = 1 << 1,
552 VTERM_ATTR_ITALIC_MASK = 1 << 2,
553 VTERM_ATTR_BLINK_MASK = 1 << 3,
554 VTERM_ATTR_REVERSE_MASK = 1 << 4,
555 VTERM_ATTR_STRIKE_MASK = 1 << 5,
556 VTERM_ATTR_FONT_MASK = 1 << 6,
557 VTERM_ATTR_FOREGROUND_MASK = 1 << 7,
558 VTERM_ATTR_BACKGROUND_MASK = 1 << 8,
559 VTERM_ATTR_CONCEAL_MASK = 1 << 9,
560
561 VTERM_ALL_ATTRS_MASK = (1 << 10) - 1
562 } VTermAttrMask;
563
564 int vterm_screen_get_attrs_extent(const VTermScreen *screen, VTermRect *extent, VTermPos pos, VTermAttrMask attrs);
565
566 int vterm_screen_get_cell(const VTermScreen *screen, VTermPos pos, VTermScreenCell *cell);
567
568 int vterm_screen_is_eol(const VTermScreen *screen, VTermPos pos);
569
570 /**
571 * Same as vterm_state_convert_color_to_rgb(), but takes a `screen` instead of a `state`
572 * instance.
573 */
574 void vterm_screen_convert_color_to_rgb(const VTermScreen *screen, VTermColor *col);
575
576 // ---------
577 // Utilities
578 // ---------
579
580 VTermValueType vterm_get_attr_type(VTermAttr attr);
581 VTermValueType vterm_get_prop_type(VTermProp prop);
582
583 void vterm_scroll_rect(VTermRect rect,
584 int downward,
585 int rightward,
586 int (*moverect)(VTermRect src, VTermRect dest, void *user),
587 int (*eraserect)(VTermRect rect, int selective, void *user),
588 void *user);
589
590 void vterm_copy_cells(VTermRect dest,
591 VTermRect src,
592 void (*copycell)(VTermPos dest, VTermPos src, void *user),
593 void *user);
594
595 #ifdef __cplusplus
596 }
597 #endif
598
599 #endif
600