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#ifndef VTERM_MODULE_H
#define VTERM_MODULE_H
#include "emacs-module.h"
#include <inttypes.h>
#include <stdbool.h>
#include <vterm.h>
int plugin_is_GPL_compatible;
#define SB_MAX 100000 // Maximum 'scrollback' value.
#ifndef MIN
#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
#endif
#ifndef MAX
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
#endif
typedef struct ScrollbackLine {
size_t cols;
VTermScreenCell cells[];
} ScrollbackLine;
enum {
VTERM_PROP_CURSOR_BLOCK = VTERM_PROP_CURSORSHAPE_BLOCK,
VTERM_PROP_CURSOR_UNDERLINE = VTERM_PROP_CURSORSHAPE_UNDERLINE,
VTERM_PROP_CURSOR_BAR_LEFT = VTERM_PROP_CURSORSHAPE_BAR_LEFT,
VTERM_PROP_CURSOR_VISIBLE = 4,
VTERM_PROP_CURSOR_NOT_VISIBLE = 5,
};
typedef struct Cursor {
int row, col;
int cursor_type;
bool cursor_type_changed;
} Cursor;
typedef struct Term {
VTerm *vt;
VTermScreen *vts;
// buffer used to:
// - convert VTermScreen cell arrays into utf8 strings
// - receive data from libvterm as a result of key presses.
ScrollbackLine **sb_buffer; // Scrollback buffer storage for libvterm
size_t sb_current; // number of rows pushed to sb_buffer
size_t sb_size; // sb_buffer size
// "virtual index" that points to the first sb_buffer row that we need to
// push to the terminal buffer when refreshing the scrollback. When negative,
// it actually points to entries that are no longer in sb_buffer (because the
// window height has increased) and must be deleted from the terminal buffer
int sb_pending;
int invalid_start, invalid_end; // invalid rows in libvterm screen
bool is_invalidated;
Cursor cursor;
char *title;
bool is_title_changed;
int width, height;
} Term;
static bool compare_cells(VTermScreenCell *a, VTermScreenCell *b);
static bool is_key(unsigned char *key, size_t len, char *key_description);
static emacs_value render_text(emacs_env *env, Term *term, char *string, int len,
VTermScreenCell *cell);
static emacs_value cell_to_face(emacs_env *env, Term *term, VTermScreenCell *cell);
static emacs_value color_to_face(emacs_env *env, VTermColor *color, emacs_value palette);
static emacs_value color_to_rgb_string(emacs_env *env, Term *term, VTermColor *color);
static int term_settermprop(VTermProp prop, VTermValue *val, void *user_data);
static void term_redraw(Term *term, emacs_env *env);
static void term_flush_output(Term *term, emacs_env *env);
static void term_process_key(Term *term, unsigned char *key, size_t len,
VTermModifier modifier);
static void term_put_caret(Term *term, emacs_env *env, int row, int col,
int offset);
static void invalidate_terminal(Term *term, int start_row, int end_row);
static void refresh_size(Term *term);
void term_finalize(void *object);
emacs_value Fvterm_new(emacs_env *env, ptrdiff_t nargs, emacs_value args[],
void *data);
emacs_value Fvterm_update(emacs_env *env, ptrdiff_t nargs, emacs_value args[],
void *data);
emacs_value Fvterm_redraw(emacs_env *env, ptrdiff_t nargs, emacs_value args[],
void *data);
emacs_value Fvterm_write_input(emacs_env *env, ptrdiff_t nargs,
emacs_value args[], void *data);
emacs_value Fvterm_set_size(emacs_env *env, ptrdiff_t nargs, emacs_value args[],
void *data);
int emacs_module_init(struct emacs_runtime *ert);
#endif /* VTERM_MODULE_H */
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