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-rw-r--r--src/getstring.c383
1 files changed, 198 insertions, 185 deletions
diff --git a/src/getstring.c b/src/getstring.c
index aedd842..513ad67 100644
--- a/src/getstring.c
+++ b/src/getstring.c
@@ -37,126 +37,134 @@
#include "calcurse.h"
struct getstr_charinfo {
- unsigned int offset, dpyoff;
+ unsigned int offset, dpyoff;
};
struct getstr_status {
- char *s;
- struct getstr_charinfo *ci;
- int pos, len;
- int scrpos;
+ char *s;
+ struct getstr_charinfo *ci;
+ int pos, len;
+ int scrpos;
};
/* Print the string at the desired position. */
-static void getstr_print(WINDOW * win, int x, int y, struct getstr_status *st)
+static void getstr_print(WINDOW * win, int x, int y,
+ struct getstr_status *st)
{
- char c = 0;
-
- /* print string */
- mvwaddnstr(win, y, x, &st->s[st->ci[st->scrpos].offset], -1);
- wclrtoeol(win);
-
- /* print scrolling indicator */
- if (st->scrpos > 0 && st->ci[st->len].dpyoff -
- st->ci[st->scrpos].dpyoff > col - 2)
- c = '*';
- else if (st->scrpos > 0)
- c = '<';
- else if (st->ci[st->len].dpyoff - st->ci[st->scrpos].dpyoff > col - 2)
- c = '>';
- mvwprintw(win, y, col - 2, " %c", c);
-
- /* print cursor */
- wmove(win, y, st->ci[st->pos].dpyoff - st->ci[st->scrpos].dpyoff);
- wchgat(win, 1, A_REVERSE, COLR_CUSTOM, NULL);
+ char c = 0;
+
+ /* print string */
+ mvwaddnstr(win, y, x, &st->s[st->ci[st->scrpos].offset], -1);
+ wclrtoeol(win);
+
+ /* print scrolling indicator */
+ if (st->scrpos > 0 && st->ci[st->len].dpyoff -
+ st->ci[st->scrpos].dpyoff > col - 2)
+ c = '*';
+ else if (st->scrpos > 0)
+ c = '<';
+ else if (st->ci[st->len].dpyoff - st->ci[st->scrpos].dpyoff >
+ col - 2)
+ c = '>';
+ mvwprintw(win, y, col - 2, " %c", c);
+
+ /* print cursor */
+ wmove(win, y, st->ci[st->pos].dpyoff - st->ci[st->scrpos].dpyoff);
+ wchgat(win, 1, A_REVERSE, COLR_CUSTOM, NULL);
}
/* Delete a character at the given position in string. */
static void getstr_del_char(struct getstr_status *st)
{
- char *str = st->s + st->ci[st->pos].offset;
- int cl = st->ci[st->pos + 1].offset - st->ci[st->pos].offset;
- int cw = st->ci[st->pos + 1].dpyoff - st->ci[st->pos].dpyoff;
- int i;
-
- memmove(str, str + cl, strlen(str) + 1);
-
- st->len--;
- for (i = st->pos; i <= st->len; i++) {
- st->ci[i].offset = st->ci[i + 1].offset - cl;
- st->ci[i].dpyoff = st->ci[i + 1].dpyoff - cw;
- }
+ char *str = st->s + st->ci[st->pos].offset;
+ int cl = st->ci[st->pos + 1].offset - st->ci[st->pos].offset;
+ int cw = st->ci[st->pos + 1].dpyoff - st->ci[st->pos].dpyoff;
+ int i;
+
+ memmove(str, str + cl, strlen(str) + 1);
+
+ st->len--;
+ for (i = st->pos; i <= st->len; i++) {
+ st->ci[i].offset = st->ci[i + 1].offset - cl;
+ st->ci[i].dpyoff = st->ci[i + 1].dpyoff - cw;
+ }
}
/* Add a character at the given position in string. */
static void getstr_ins_char(struct getstr_status *st, char *c)
{
- char *str = st->s + st->ci[st->pos].offset;
- int cl = UTF8_LENGTH(c[0]);
- int cw = utf8_width(c);
- int i;
-
- memmove(str + cl, str, strlen(str) + 1);
- for (i = 0; i < cl; i++, str++)
- *str = c[i];
-
- for (i = st->len; i >= st->pos; i--) {
- st->ci[i + 1].offset = st->ci[i].offset + cl;
- st->ci[i + 1].dpyoff = st->ci[i].dpyoff + cw;
- }
- st->len++;
+ char *str = st->s + st->ci[st->pos].offset;
+ int cl = UTF8_LENGTH(c[0]);
+ int cw = utf8_width(c);
+ int i;
+
+ memmove(str + cl, str, strlen(str) + 1);
+ for (i = 0; i < cl; i++, str++)
+ *str = c[i];
+
+ for (i = st->len; i >= st->pos; i--) {
+ st->ci[i + 1].offset = st->ci[i].offset + cl;
+ st->ci[i + 1].dpyoff = st->ci[i].dpyoff + cw;
+ }
+ st->len++;
}
static void bell(void)
{
- putchar('\a');
+ putchar('\a');
}
/* Initialize getstring data structure. */
static void
-getstr_init(struct getstr_status *st, char *str, struct getstr_charinfo *ci)
+getstr_init(struct getstr_status *st, char *str,
+ struct getstr_charinfo *ci)
{
- int width;
+ int width;
- st->s = str;
- st->ci = ci;
+ st->s = str;
+ st->ci = ci;
- st->len = width = 0;
- while (*str) {
- st->ci[st->len].offset = str - st->s;
- st->ci[st->len].dpyoff = width;
+ st->len = width = 0;
+ while (*str) {
+ st->ci[st->len].offset = str - st->s;
+ st->ci[st->len].dpyoff = width;
- st->len++;
- width += utf8_width(str);
- str += UTF8_LENGTH(*str);
- }
- st->ci[st->len].offset = str - st->s;
- st->ci[st->len].dpyoff = width;
+ st->len++;
+ width += utf8_width(str);
+ str += UTF8_LENGTH(*str);
+ }
+ st->ci[st->len].offset = str - st->s;
+ st->ci[st->len].dpyoff = width;
- st->pos = st->len;
- st->scrpos = 0;
+ st->pos = st->len;
+ st->scrpos = 0;
}
/* Scroll left/right if the cursor moves outside the window range. */
static void getstr_fixscr(struct getstr_status *st)
{
- const int pgsize = col / 3;
- int pgskip;
-
- while (st->pos < st->scrpos) {
- pgskip = 0;
- while (pgskip < pgsize && st->scrpos > 0) {
- st->scrpos--;
- pgskip += st->ci[st->scrpos + 1].dpyoff - st->ci[st->scrpos].dpyoff;
- }
- }
- while (st->ci[st->pos].dpyoff - st->ci[st->scrpos].dpyoff > col - 2) {
- pgskip = 0;
- while (pgskip < pgsize && st->scrpos < st->len) {
- pgskip += st->ci[st->scrpos + 1].dpyoff - st->ci[st->scrpos].dpyoff;
- st->scrpos++;
- }
- }
+ const int pgsize = col / 3;
+ int pgskip;
+
+ while (st->pos < st->scrpos) {
+ pgskip = 0;
+ while (pgskip < pgsize && st->scrpos > 0) {
+ st->scrpos--;
+ pgskip +=
+ st->ci[st->scrpos + 1].dpyoff -
+ st->ci[st->scrpos].dpyoff;
+ }
+ }
+ while (st->ci[st->pos].dpyoff - st->ci[st->scrpos].dpyoff >
+ col - 2) {
+ pgskip = 0;
+ while (pgskip < pgsize && st->scrpos < st->len) {
+ pgskip +=
+ st->ci[st->scrpos + 1].dpyoff -
+ st->ci[st->scrpos].dpyoff;
+ st->scrpos++;
+ }
+ }
}
/*
@@ -169,114 +177,119 @@ static void getstr_fixscr(struct getstr_status *st)
*/
enum getstr getstring(WINDOW * win, char *str, int l, int x, int y)
{
- struct getstr_status st;
- struct getstr_charinfo ci[l + 1];
-
- int ch, k;
- char c[UTF8_MAXLEN];
-
- getstr_init(&st, str, ci);
- custom_apply_attr(win, ATTR_HIGHEST);
-
- for (;;) {
- getstr_fixscr(&st);
- getstr_print(win, x, y, &st);
- wins_doupdate();
-
- if ((ch = wgetch(win)) == '\n')
- break;
- switch (ch) {
- case KEY_BACKSPACE: /* delete one character */
- case 330:
- case 127:
- case CTRL('H'):
- if (st.pos > 0) {
- st.pos--;
- getstr_del_char(&st);
- } else {
- bell();
- }
- break;
- case CTRL('D'): /* delete next character */
- if (st.pos < st.len)
- getstr_del_char(&st);
- else
- bell();
- break;
- case CTRL('W'): /* delete a word */
- if (st.pos > 0) {
- while (st.pos && st.s[st.ci[st.pos - 1].offset] == ' ') {
- st.pos--;
- getstr_del_char(&st);
- }
- while (st.pos && st.s[st.ci[st.pos - 1].offset] != ' ') {
- st.pos--;
- getstr_del_char(&st);
- }
- } else {
- bell();
- }
- break;
- case CTRL('K'): /* delete to end-of-line */
- st.s[st.ci[st.pos].offset] = 0;
- st.len = st.pos;
- break;
- case CTRL('A'): /* go to begginning of string */
- st.pos = 0;
- break;
- case CTRL('E'): /* go to end of string */
- st.pos = st.len;
- break;
- case KEY_LEFT: /* move one char backward */
- case CTRL('B'):
- if (st.pos > 0)
- st.pos--;
- break;
- case KEY_RIGHT: /* move one char forward */
- case CTRL('F'):
- if (st.pos < st.len)
- st.pos++;
- break;
- case ESCAPE: /* cancel editing */
- return GETSTRING_ESC;
- break;
- default: /* insert one character */
- c[0] = ch;
- for (k = 1; k < MIN(UTF8_LENGTH(c[0]), UTF8_MAXLEN); k++)
- c[k] = (unsigned char)wgetch(win);
- if (st.ci[st.len].offset + k < l) {
- getstr_ins_char(&st, c);
- st.pos++;
- }
- }
- }
-
- custom_remove_attr(win, ATTR_HIGHEST);
-
- return st.len == 0 ? GETSTRING_RET : GETSTRING_VALID;
+ struct getstr_status st;
+ struct getstr_charinfo ci[l + 1];
+
+ int ch, k;
+ char c[UTF8_MAXLEN];
+
+ getstr_init(&st, str, ci);
+ custom_apply_attr(win, ATTR_HIGHEST);
+
+ for (;;) {
+ getstr_fixscr(&st);
+ getstr_print(win, x, y, &st);
+ wins_doupdate();
+
+ if ((ch = wgetch(win)) == '\n')
+ break;
+ switch (ch) {
+ case KEY_BACKSPACE: /* delete one character */
+ case 330:
+ case 127:
+ case CTRL('H'):
+ if (st.pos > 0) {
+ st.pos--;
+ getstr_del_char(&st);
+ } else {
+ bell();
+ }
+ break;
+ case CTRL('D'): /* delete next character */
+ if (st.pos < st.len)
+ getstr_del_char(&st);
+ else
+ bell();
+ break;
+ case CTRL('W'): /* delete a word */
+ if (st.pos > 0) {
+ while (st.pos
+ && st.s[st.ci[st.pos - 1].offset] ==
+ ' ') {
+ st.pos--;
+ getstr_del_char(&st);
+ }
+ while (st.pos
+ && st.s[st.ci[st.pos - 1].offset] !=
+ ' ') {
+ st.pos--;
+ getstr_del_char(&st);
+ }
+ } else {
+ bell();
+ }
+ break;
+ case CTRL('K'): /* delete to end-of-line */
+ st.s[st.ci[st.pos].offset] = 0;
+ st.len = st.pos;
+ break;
+ case CTRL('A'): /* go to begginning of string */
+ st.pos = 0;
+ break;
+ case CTRL('E'): /* go to end of string */
+ st.pos = st.len;
+ break;
+ case KEY_LEFT: /* move one char backward */
+ case CTRL('B'):
+ if (st.pos > 0)
+ st.pos--;
+ break;
+ case KEY_RIGHT: /* move one char forward */
+ case CTRL('F'):
+ if (st.pos < st.len)
+ st.pos++;
+ break;
+ case ESCAPE: /* cancel editing */
+ return GETSTRING_ESC;
+ break;
+ default: /* insert one character */
+ c[0] = ch;
+ for (k = 1;
+ k < MIN(UTF8_LENGTH(c[0]), UTF8_MAXLEN); k++)
+ c[k] = (unsigned char)wgetch(win);
+ if (st.ci[st.len].offset + k < l) {
+ getstr_ins_char(&st, c);
+ st.pos++;
+ }
+ }
+ }
+
+ custom_remove_attr(win, ATTR_HIGHEST);
+
+ return st.len == 0 ? GETSTRING_RET : GETSTRING_VALID;
}
/* Update an already existing string. */
int updatestring(WINDOW * win, char **str, int x, int y)
{
- int len = strlen(*str);
- char *buf;
- enum getstr ret;
+ int len = strlen(*str);
+ char *buf;
+ enum getstr ret;
- EXIT_IF(len + 1 > BUFSIZ, _("Internal error: line too long"));
+ EXIT_IF(len + 1 > BUFSIZ, _("Internal error: line too long"));
- buf = mem_malloc(BUFSIZ);
- memcpy(buf, *str, len + 1);
+ buf = mem_malloc(BUFSIZ);
+ memcpy(buf, *str, len + 1);
- ret = getstring(win, buf, BUFSIZ, x, y);
+ ret = getstring(win, buf, BUFSIZ, x, y);
- if (ret == GETSTRING_VALID) {
- len = strlen(buf);
- *str = mem_realloc(*str, len + 1, 1);
- EXIT_IF(*str == NULL, _("out of memory"));
- memcpy(*str, buf, len + 1);
- }
+ if (ret == GETSTRING_VALID) {
+ len = strlen(buf);
+ *str = mem_realloc(*str, len + 1, 1);
+ EXIT_IF(*str == NULL, _("out of memory"));
+ memcpy(*str, buf, len + 1);
+ }
- mem_free(buf);
- return ret;
+ mem_free(buf);
+ return ret;
}