mirror of
https://github.com/radareorg/radare2.git
synced 2024-12-04 19:47:31 +00:00
623 lines
12 KiB
C
623 lines
12 KiB
C
/* radare - LGPL - Copyright 2013-2018 - pancake */
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#include <r_cons.h>
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#define useUtf8 (r_cons_singleton ()->use_utf8)
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#define useUtf8Curvy (r_cons_singleton ()->use_utf8_curvy)
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#define W(y) r_cons_canvas_write (c, y)
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#define G(x, y) r_cons_canvas_gotoxy (c, x, y)
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R_API void r_cons_canvas_free(RConsCanvas *c) {
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if (c) {
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if (c->b) {
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int y;
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for (y = 0; y < c->h; y++) {
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free (c->b[y]);
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}
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free (c->b);
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}
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free (c->bsize);
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free (c->blen);
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free (c->attrs);
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free (c);
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}
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}
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R_API void r_cons_canvas_clear(RConsCanvas *c) {
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if (c && c->b) {
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int y;
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for (y = 0; y < c->h; y++) {
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memset (c->b[y], '\n', c->bsize[y]);
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}
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/*//XXX tofix*/
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if (c->attrs) {
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c->attrslen = 0;
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memset (c->attrs, 0, sizeof (*c->attrs) * (c->w + 1) * c->h);
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}
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}
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}
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static bool _is_ansi_seq(const char *s) {
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return s && s[0] == 033 && s[1] == '[';
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}
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static int _get_piece(const char *p, char *chr) {
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const char *q = p;
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if (!p) {
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return 0;
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}
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while (p && *p && *p != '\n' && ! _is_ansi_seq (p)) {
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p++;
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}
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if (chr) {
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*chr = *p;
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}
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return p - q;
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}
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static const char **attr_at(RConsCanvas *c, int loc) {
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int i, j, delta;
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if (!c->color || c->attrslen == 0) {
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return NULL;
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}
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j = c->attrslen / 2;
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delta = c->attrslen / 2;
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for (i = 0; i < (c->attrslen); i++) {
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delta /= 2;
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if (delta == 0) {
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delta = 1;
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}
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if (c->attrs[j].loc == loc) {
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return &c->attrs[j].a;
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}
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if (c->attrs[j].loc < loc) {
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j += delta;
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if (j >= c->attrslen) {
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break;
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}
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if (c->attrs[j].loc > loc && delta == 1) {
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break;
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}
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} else if (c->attrs[j].loc > loc) {
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j -= delta;
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if (j <= 0) {
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break;
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}
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if (c->attrs[j].loc < loc && delta == 1) {
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break;
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}
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}
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}
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return NULL;
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}
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static void stamp_attr(RConsCanvas *c, int loc, int length) {
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if (!c->color) {
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return;
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}
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int i;
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const char **s;
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s = attr_at (c, loc);
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if (s) {
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#if 0
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if (*s != 0 && strlen (*s) > 2 && *(*s + 2) == '0') {
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if (strlen (c->attr) == 5 && *(c->attr + 2) != '0') {
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char tmp[9];
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memcpy (tmp, c->attr, 2);
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strcpy (tmp + 2, "0;");
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memcpy (tmp + 4, c->attr + 2, 3);
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tmp[8] = 0;
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c->attr = r_str_const (tmp);
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}
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}
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#endif
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*s = c->attr;
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} else {
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for (i = c->attrslen; i > 0 && loc < c->attrs[i - 1].loc; i--) {
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c->attrs[i] = c->attrs[i - 1];
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}
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c->attrs[i].loc = loc;
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c->attrs[i].a = c->attr;
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c->attrslen++;
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}
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for (i = 1; i < length; i++) {
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s = attr_at (c, loc + i);
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if (s) {
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*s = 0;
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}
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}
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}
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/* check for ANSI sequences and use them as attr */
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static const char *set_attr(RConsCanvas *c, const char *s) {
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if (!c || !s) {
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return NULL;
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}
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const char *p = s;
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while (_is_ansi_seq (p)) {
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p += 2;
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while (*p && *p != 'J' && *p != 'm' && *p != 'H') {
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p++;
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}
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p++;
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}
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if (p != s) {
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char tmp[256];
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const int slen = R_MIN (p - s, sizeof (tmp) - 1);
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if (slen > 0) {
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memcpy (tmp, s, slen);
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tmp[slen] = 0;
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// could be faster
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c->attr = r_str_const (tmp);
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}
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}
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return p;
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}
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R_API bool r_cons_canvas_gotoxy(RConsCanvas *c, int x, int y) {
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bool ret = true;
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if (!c) {
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return 0;
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}
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y += c->sy;
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x += c->sx;
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if (y > c->h * 2) {
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return false;
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}
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if (y >= c->h) {
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y = c->h - 1;
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ret = false;
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}
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if (y < 0) {
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y = 0;
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ret = false;
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}
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if (x < 0) {
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//c->x = 0;
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ret = false;
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}
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if (x > c->blen[y] * 2) {
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return false;
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}
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if (x >= c->blen[y]) {
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c->x = c->blen[y];
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ret = false;
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}
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if (x < c->blen[y] && x >= 0) {
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c->x = x;
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}
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if (y < c->h && y >= 0) {
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c->y = y;
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}
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return ret;
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}
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R_API RConsCanvas *r_cons_canvas_new(int w, int h) {
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if (w < 1 || h < 1) {
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return NULL;
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}
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RConsCanvas *c = R_NEW0 (RConsCanvas);
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if (!c) {
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return NULL;
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}
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c->bsize = NULL;
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c->blen = NULL;
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int i = 0;
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c->color = 0;
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c->sx = 0;
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c->sy = 0;
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c->b = malloc (sizeof *c->b * h);
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if (!c->b) {
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goto beach;
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}
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c->blen = malloc (sizeof *c->blen * h);
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if (!c->blen) {
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goto beach;
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}
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c->bsize = malloc (sizeof *c->bsize * h);
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if (!c->bsize) {
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goto beach;
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}
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for (i = 0; i < h; i++) {
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c->b[i] = malloc (w + 1);
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c->blen[i] = w;
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c->bsize[i] = w + 1;
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if (!c->b[i]) {
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goto beach;
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}
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}
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c->w = w;
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c->h = h;
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c->x = c->y = 0;
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c->attrslen = 0;
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c->attrs = calloc (sizeof (*c->attrs), (c->w + 1) * c->h);
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if (!c->attrs) {
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goto beach;
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}
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c->attr = Color_RESET;
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r_cons_canvas_clear (c);
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return c;
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beach: {
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int j;
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for (j = 0; j < i; j++) {
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free (c->b[j]);
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}
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free (c->bsize);
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free (c->blen);
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free (c->b);
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free (c);
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return NULL;
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}
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}
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static int utf8len_fixed(const char *s, int n) {
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int i = 0, j = 0, fullwidths = 0;
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while (s[i] && n > 0) {
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if ((s[i] & 0xc0) != 0x80) {
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j++;
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if (r_str_char_fullwidth (s + i, n)) {
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fullwidths++;
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}
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}
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n--;
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i++;
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}
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return j + fullwidths;
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}
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static int bytes_utf8len(const char *s, int n, int left) {
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int i = 0, fullwidths = 0;
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while (n > -1 && i < left && s[i]) {
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if (r_str_char_fullwidth (s + i, left - i)) {
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fullwidths++;
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}
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if ((s[i] & 0xc0) != 0x80) {
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n--;
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}
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i++;
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}
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i -= fullwidths;
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return n == -1 ? i - 1 : i;
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}
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static int expand_line (RConsCanvas *c, int real_len, int utf8_len) {
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if (real_len == 0) {
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return true;
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}
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int buf_utf8_len = bytes_utf8len (c->b[c->y] + c->x, utf8_len, c->blen[c->y] - c->x);
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int goback = R_MAX (0, (buf_utf8_len - utf8_len));
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int padding = (real_len - utf8_len) - goback;
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if (padding) {
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if (padding > 0 && c->blen[c->y] + padding > c->bsize[c->y]) {
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int newsize = R_MAX (c->bsize[c->y] * 1.5, c->blen[c->y] + padding);
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char * newline = realloc (c->b[c->y], sizeof (*c->b[c->y])*(newsize));
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if (!newline) {
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return false;
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}
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memset (newline + c->bsize[c->y], 0, newsize - c->bsize[c->y]);
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c->b[c->y] = newline;
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c->bsize[c->y] = newsize;
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}
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int size = R_MAX (c->blen[c->y] - c->x - goback, 0);
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char *start = c->b[c->y] + c->x + goback;
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char *tmp = malloc (size);
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if (!tmp) {
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return false;
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}
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memcpy (tmp, start, size);
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if (padding < 0) {
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int lap = R_MAX (0, c->b[c->y] - (start + padding));
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memcpy (start + padding + lap, tmp + lap, size - lap);
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free (tmp);
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c->blen[c->y] += padding;
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return true;
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}
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memcpy (start + padding, tmp, size);
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free (tmp);
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c->blen[c->y] += padding;
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}
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return true;
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}
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R_API void r_cons_canvas_write(RConsCanvas *c, const char *s) {
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if (!c || !s || !*s || !R_BETWEEN (0, c->y, c->h - 1) || !R_BETWEEN (0, c->x, c->w - 1)) {
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return;
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}
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char ch;
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int left, slen, attr_len, piece_len;
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int orig_x = c->x, attr_x = c->x;
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c->x = bytes_utf8len (c->b[c->y], c->x, c->blen[c->y]);
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/* split the string into pieces of non-ANSI chars and print them normally,
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** using the ANSI chars to set the attr of the canvas */
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r_cons_break_push (NULL, NULL);
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do {
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const char *s_part = set_attr (c, s);
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ch = 0;
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piece_len = _get_piece (s_part, &ch);
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if (piece_len == 0 && ch == '\0' && s_part == s) {
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break;
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}
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left = c->blen[c->y] - c->x;
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slen = piece_len;
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if (piece_len > left) {
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int utf8_piece_len = utf8len_fixed (s_part, piece_len);
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if (utf8_piece_len > c->w - attr_x) {
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slen = left;
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}
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}
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int real_len = r_str_nlen (s_part, slen);
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int utf8_len = utf8len_fixed (s_part, slen);
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if (!expand_line (c, real_len, utf8_len)) {
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break;
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}
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if (G (c->x - c->sx, c->y - c->sy)) {
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memcpy (c->b[c->y] + c->x, s_part, slen);
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}
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attr_len = slen <= 0 && s_part != s? 1: utf8_len;
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if (attr_len > 0 && attr_x < c->blen[c->y]) {
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stamp_attr (c, c->y*c->w + attr_x, attr_len);
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}
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s = s_part;
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if (ch == '\n') {
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c->attr = Color_RESET;
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stamp_attr (c, c->y*c->w + attr_x, 0);
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c->y++;
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s++;
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if (*s == '\0' || c->y >= c->h) {
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break;
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}
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c->x = bytes_utf8len (c->b[c->y], orig_x, c->blen[c->y]);
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attr_x = orig_x;
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} else {
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c->x += slen;
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attr_x += utf8_len;
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}
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s += piece_len;
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} while (*s && !r_cons_is_breaked ());
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r_cons_break_pop ();
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c->x = orig_x;
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}
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R_API char *r_cons_canvas_to_string(RConsCanvas *c) {
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int x, y, olen = 0, attr_x = 0;
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char *o;
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const char **atr;
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int is_first = true;
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if (!c) {
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return NULL;
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}
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for (y = 0; y < c->h; y++) {
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olen += c->blen[y] + 1;
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}
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o = calloc (1, olen * CONS_MAX_ATTR_SZ);
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if (!o) {
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return NULL;
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}
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olen = 0;
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for (y = 0; y < c->h; y++) {
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if (!is_first) {
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o[olen++] = '\n';
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}
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is_first = false;
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attr_x = 0;
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for (x = 0; x < c->blen[y]; x++) {
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if ((c->b[y][x] & 0xc0) != 0x80) {
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atr = attr_at (c, y*c->w + attr_x);
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if (atr && *atr) {
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int len = strlen (*atr);
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memcpy (o + olen, *atr, len);
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olen += len;
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}
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attr_x++;
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if (r_str_char_fullwidth (c->b[y] + x, c->blen[y] - x)) {
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attr_x++;
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}
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}
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if (!c->b[y][x] || c->b[y][x] == '\n') {
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o[olen++] = ' ';
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continue;
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}
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const char *rune = r_cons_get_rune ((const ut8)c->b[y][x]);
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if (rune) {
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strcpy (o + olen, rune);
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olen += strlen (rune);
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} else {
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o[olen++] = c->b[y][x];
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}
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}
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while (olen > 0 && o[olen - 1] == ' ') {
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o[--olen] = '\0';
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}
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}
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o[olen] = '\0';
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return o;
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}
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R_API void r_cons_canvas_print_region(RConsCanvas *c) {
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char *o = r_cons_canvas_to_string (c);
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if (o) {
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r_str_trim_tail (o);
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if (*o) {
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r_cons_strcat (o);
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}
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free (o);
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}
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}
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R_API void r_cons_canvas_print(RConsCanvas *c) {
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char *o = r_cons_canvas_to_string (c);
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if (o) {
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r_cons_strcat (o);
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free (o);
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}
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}
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R_API int r_cons_canvas_resize(RConsCanvas *c, int w, int h) {
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if (!c || w < 0) {
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return false;
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}
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void *newattrs = NULL;
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int *newblen = realloc (c->blen, sizeof *c->blen * h);
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if (!newblen) {
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r_cons_canvas_free (c);
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return false;
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}
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c->blen = newblen;
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int *newbsize = realloc (c->bsize, sizeof *c->bsize * h);
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if (!newbsize) {
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r_cons_canvas_free (c);
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return false;
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}
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c->bsize = newbsize;
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char **newb = realloc (c->b, sizeof *c->b * h);
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if (!newb) {
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r_cons_canvas_free (c);
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return false;
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}
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c->b = newb;
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int i;
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char *newline = NULL;
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for (i = 0; i < h; i++) {
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if (i < c->h) {
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newline = realloc (c->b[i], sizeof *c->b[i] * (w + 1));
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} else {
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newline = malloc ((w + 1));
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}
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c->blen[i] = w;
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c->bsize[i] = w + 1;
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if (!newline) {
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int j;
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for (j = 0; j <= i; j++) {
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free (c->b[i]);
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}
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free (c->attrs);
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free (c->blen);
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free (c->bsize);
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free (c->b);
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free (c);
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return false;
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}
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c->b[i] = newline;
|
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}
|
|
newattrs = realloc (c->attrs, sizeof (*c->attrs) * (w + 1) * h);
|
|
if (!newattrs) {
|
|
r_cons_canvas_free (c);
|
|
return false;
|
|
}
|
|
c->attrs = newattrs;
|
|
c->w = w;
|
|
c->h = h;
|
|
c->x = 0;
|
|
c->y = 0;
|
|
r_cons_canvas_clear (c);
|
|
return true;
|
|
}
|
|
|
|
R_API void r_cons_canvas_box(RConsCanvas *c, int x, int y, int w, int h, const char *color) {
|
|
const char *hline = useUtf8? RUNECODESTR_LINE_HORIZ : "-";
|
|
const char *vline = useUtf8? RUNECODESTR_LINE_VERT : "|";
|
|
const char *tl_corner = useUtf8 ? (useUtf8Curvy ? RUNECODESTR_CURVE_CORNER_TL : RUNECODESTR_CORNER_TL) : ".";
|
|
const char *tr_corner = useUtf8 ? (useUtf8Curvy ? RUNECODESTR_CURVE_CORNER_TR : RUNECODESTR_CORNER_TR) : ".";
|
|
const char *bl_corner = useUtf8 ? (useUtf8Curvy ? RUNECODESTR_CURVE_CORNER_BL : RUNECODESTR_CORNER_BL) : "`";
|
|
const char *br_corner = useUtf8 ? (useUtf8Curvy ? RUNECODESTR_CURVE_CORNER_BR : RUNECODESTR_CORNER_BR) : "'";
|
|
int i, x_mod;
|
|
int roundcorners = 0;
|
|
char *row = NULL, *row_ptr;
|
|
|
|
if (w < 1 || h < 1) {
|
|
return;
|
|
}
|
|
if (color) {
|
|
c->attr = color;
|
|
}
|
|
if (!c->color) {
|
|
c->attr = Color_RESET;
|
|
}
|
|
row = malloc (w + 1);
|
|
if (!row) {
|
|
return;
|
|
}
|
|
row[0] = roundcorners? '.': tl_corner[0];
|
|
if (w > 2) {
|
|
memset (row + 1, hline[0], w - 2);
|
|
}
|
|
if (w > 1) {
|
|
row[w - 1] = roundcorners? '.': tr_corner[0];
|
|
}
|
|
row[w] = 0;
|
|
|
|
row_ptr = row;
|
|
x_mod = x;
|
|
if (x < -c->sx) {
|
|
x_mod = R_MIN (-c->sx, x_mod + w);
|
|
row_ptr += x_mod - x;
|
|
}
|
|
if (G (x_mod, y)) {
|
|
W (row_ptr);
|
|
}
|
|
if (G (x_mod, y + h - 1)) {
|
|
row[0] = roundcorners? '\'': bl_corner[0];
|
|
row[w - 1] = roundcorners? '\'': br_corner[0];
|
|
W (row_ptr);
|
|
}
|
|
for (i = 1; i < h - 1; i++) {
|
|
if (G (x, y + i)) {
|
|
W (vline);
|
|
}
|
|
if (G (x + w - 1, y + i)) {
|
|
W (vline);
|
|
}
|
|
}
|
|
free (row);
|
|
if (color) {
|
|
c->attr = Color_RESET;
|
|
}
|
|
}
|
|
|
|
R_API void r_cons_canvas_fill(RConsCanvas *c, int x, int y, int w, int h, char ch) {
|
|
int i;
|
|
if (w < 0) {
|
|
return;
|
|
}
|
|
char *row = malloc (w + 1);
|
|
if (!row) {
|
|
return;
|
|
}
|
|
memset (row, ch, w);
|
|
row[w] = 0;
|
|
for (i = 0; i < h; i++) {
|
|
if (G (x, y + i)) {
|
|
W (row);
|
|
}
|
|
}
|
|
free (row);
|
|
}
|
|
|
|
R_API void r_cons_canvas_line(RConsCanvas *c, int x, int y, int x2, int y2, RCanvasLineStyle *style) {
|
|
if (c->linemode) {
|
|
r_cons_canvas_line_square (c, x, y, x2, y2, style);
|
|
} else {
|
|
r_cons_canvas_line_diagonal (c, x, y, x2, y2, style);
|
|
}
|
|
}
|