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line edit support for home, del and end keys

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This commit is contained in:
Jfreegman 2013-12-01 02:58:21 -05:00
parent 37dd2bee2d
commit 5850e1c333
4 changed files with 50 additions and 16 deletions
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16
src/chat.c
View File

@ -280,16 +280,25 @@ static void chat_onKey(ToxWindow *self, Tox *m, wint_t key)
getyx(self->window, y, x);
getmaxyx(self->window, y2, x2);
/* BACKSPACE key: Remove one character from line */
if (key == 0x107 || key == 0x8 || key == 0x7f) {
if (key == 0x107 || key == 0x8 || key == 0x7f) { /* BACKSPACE key: Remove character behind pos */
if (ctx->pos > 0) {
del_char_from_buf(key, ctx->line, &ctx->pos, &ctx->len);
del_char_buf_bck(ctx->line, &ctx->pos, &ctx->len);
if (x == 0)
wmove(self->window, y-1, x2-1);
else
wmove(self->window, y, x-1);
}
} else if (key == KEY_DC) { /* DEL key: Remove character at pos */
del_char_buf_frnt(ctx->line, &ctx->pos, &ctx->len);
} else if (key == KEY_HOME) { /* HOME key: Move cursor to beginning of line */
ctx->pos = 0;
wmove(self->window, y2 - CURS_Y_OFFSET, 0);
} else if (key == KEY_END) { /* END key: move cursor to end of line */
ctx->pos = ctx->len;
int end_y = (ctx->pos / x2) + y;
int end_x = ctx->len % x2;
wmove(self->window, end_y, end_x);
} else if (key == KEY_LEFT && ctx->pos > 0) {
--ctx->pos;
@ -305,7 +314,6 @@ static void chat_onKey(ToxWindow *self, Tox *m, wint_t key)
else
wmove(self->window, y, x+1);
} else
/* Add printable chars to buffer and print on input space */
#if HAVE_WIDECHAR
if (iswprint(key))
#else

15
src/groupchat.c
View File

@ -220,16 +220,25 @@ static void groupchat_onKey(ToxWindow *self, Tox *m, wint_t key)
getyx(self->window, y, x);
getmaxyx(self->window, y2, x2);
/* BACKSPACE key: Remove one character from line */
if (key == 0x107 || key == 0x8 || key == 0x7f) {
if (key == 0x107 || key == 0x8 || key == 0x7f) { /* BACKSPACE key: Remove character behind pos */
if (ctx->pos > 0) {
del_char_from_buf(key, ctx->line, &ctx->pos, &ctx->len);
del_char_buf_bck(ctx->line, &ctx->pos, &ctx->len);
if (x == 0)
wmove(self->window, y-1, x2-1);
else
wmove(self->window, y, x-1);
}
} else if (key == KEY_DC) { /* DEL key: Remove character at pos */
del_char_buf_frnt(ctx->line, &ctx->pos, &ctx->len);
} else if (key == KEY_HOME) { /* HOME key: Move cursor to beginning of line */
ctx->pos = 0;
wmove(self->window, y2 - CURS_Y_OFFSET, 0);
} else if (key == KEY_END) { /* END key: move cursor to end of line */
ctx->pos = ctx->len;
int end_y = (ctx->pos / x2) + y;
int end_x = ctx->len % x2;
wmove(self->window, end_y, end_x);
} else if (key == KEY_LEFT && ctx->pos > 0) {
--ctx->pos;

20
src/misc_tools.c
View File

@ -188,8 +188,8 @@ void add_char_to_buf(wint_t ch, wchar_t *buf, size_t *pos, size_t *len)
++(*len);
}
/* Deletes the character before pos via the backspace key */
void del_char_from_buf(wint_t ch, wchar_t *buf, size_t *pos, size_t *len)
/* Deletes the character before pos */
void del_char_buf_bck(wchar_t *buf, size_t *pos, size_t *len)
{
if (*pos <= 0)
return;
@ -211,7 +211,21 @@ void del_char_from_buf(wint_t ch, wchar_t *buf, size_t *pos, size_t *len)
--(*len);
}
/* sets pos and len to 0 */
/* Deletes the character at pos */
void del_char_buf_frnt(wchar_t *buf, size_t *pos, size_t *len)
{
if (*pos < 0 || *pos >= *len)
return;
int i;
for (i = *pos; i < *len; ++i)
buf[i] = buf[i+1];
--(*len);
}
/* nulls buf and sets pos and len to 0 */
void reset_buf(wchar_t *buf, size_t *pos, size_t *len)
{
buf[0] = L'\0';

9
src/misc_tools.h
View File

@ -44,8 +44,11 @@ bool valid_nick(uint8_t *nick);
/* Adds char to buffer at pos */
void add_char_to_buf(wint_t ch, wchar_t *buf, size_t *pos, size_t *len);
/* Deletes the character before pos via the backspace key */
void del_char_from_buf(wint_t ch, wchar_t *buf, size_t *pos, size_t *len);
/* Deletes the character before pos */
void del_char_buf_bck(wchar_t *buf, size_t *pos, size_t *len);
/* sets pos and len to 0 */
/* Deletes the character at pos */
void del_char_buf_frnt(wchar_t *buf, size_t *pos, size_t *len);
/* nulls buf and sets pos and len to 0 */
void reset_buf(wchar_t *buf, size_t *pos, size_t *len);