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/*
gui-entry.c : irssi
Copyright (C) 1999 Timo Sirainen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "screen.h"
static GString *entry;
static int promptlen, permanent_prompt, pos, scrstart, scrpos;
static char *prompt;
static void entry_screenpos(void)
{
if (pos-scrstart < COLS-2-promptlen && pos-scrstart > 0) {
scrpos = pos-scrstart;
return;
}
if (pos < COLS-1-promptlen) {
scrstart = 0;
scrpos = pos;
} else {
scrpos = COLS-1-promptlen;
scrstart = pos-scrpos;
}
}
static void entry_update(void)
{
char *p;
int n, len;
len = entry->len-scrstart > COLS-1-promptlen ?
COLS-1-promptlen : entry->len-scrstart;
set_color(stdscr, 0);
move(LINES-1, promptlen);
for (p = entry->str+scrstart, n = 0; n < len; n++, p++) {
if ((unsigned char) *p >= 32)
addch((unsigned char) *p);
else {
set_color(stdscr, ATTR_REVERSE);
addch(*p+'A'-1);
set_color(stdscr, 0);
}
}
clrtoeol();
move_cursor(LINES-1, scrpos+promptlen);
screen_refresh(NULL);
}
void gui_entry_set_prompt(const char *str)
{
if (str != NULL) {
if (permanent_prompt) return;
g_free_not_null(prompt);
prompt = g_strdup(str);
promptlen = strlen(prompt);
}
set_color(stdscr, 0);
mvaddstr(LINES-1, 0, prompt);
entry_screenpos();
entry_update();
}
void gui_entry_set_perm_prompt(const char *str)
{
g_return_if_fail(str != NULL);
g_free_not_null(prompt);
prompt = g_strdup(str);
promptlen = strlen(prompt);
permanent_prompt = TRUE;
gui_entry_set_prompt(NULL);
}
void gui_entry_remove_perm_prompt(void)
{
permanent_prompt = FALSE;
}
void gui_entry_set_text(const char *str)
{
g_return_if_fail(str != NULL);
g_string_assign(entry, str);
pos = entry->len;
entry_screenpos();
entry_update();
}
char *gui_entry_get_text(void)
{
return entry->str;
}
void gui_entry_insert_text(const char *str)
{
g_return_if_fail(str != NULL);
g_string_insert(entry, pos, str);
pos += strlen(str);
entry_screenpos();
entry_update();
}
void gui_entry_insert_char(char chr)
{
g_string_insert_c(entry, pos, chr);
pos++;
entry_screenpos();
entry_update();
}
void gui_entry_erase(int size)
{
if (pos < size) return;
pos -= size;
g_string_erase(entry, pos, size);
entry_screenpos();
entry_update();
}
void gui_entry_erase_word(void)
{
int to;
if (pos == 0) return;
to = pos - 1;
while (entry->str[to] == ' ' && to > 0)
to--;
while (entry->str[to] != ' ' && to > 0)
to--;
if (entry->str[to] == ' ' && to > 0)
to++;
g_string_erase(entry, to, pos - to);
pos = to;
entry_screenpos();
entry_update();
}
int gui_entry_get_pos(void)
{
return pos;
}
void gui_entry_set_pos(int p)
{
if (p >= 0 && p <= entry->len)
pos = p;
entry_screenpos();
entry_update();
}
void gui_entry_move_pos(int p)
{
if (pos+p >= 0 && pos+p <= entry->len)
pos += p;
entry_screenpos();
entry_update();
}
static void gui_entry_move_words_left(int count)
{
if (pos == 0) return;
while (count > 0 && pos > 0) {
while (pos > 0 && entry->str[pos-1] == ' ')
pos--;
while (pos > 0 && entry->str[pos-1] != ' ')
pos--;
count--;
}
}
static void gui_entry_move_words_right(int count)
{
if (pos == entry->len) return;
while (count > 0 && pos < entry->len) {
while (pos < entry->len && entry->str[pos] != ' ')
pos++;
while (pos < entry->len && entry->str[pos] == ' ')
pos++;
count--;
}
}
void gui_entry_move_words(int count)
{
if (count < 0)
gui_entry_move_words_left(-count);
else if (count > 0)
gui_entry_move_words_right(count);
entry_screenpos();
entry_update();
}
void gui_entry_redraw(void)
{
gui_entry_set_prompt(NULL);
entry_screenpos();
entry_update();
}
void gui_entry_init(void)
{
entry = g_string_new(NULL);
pos = scrpos = 0;
prompt = NULL; promptlen = 0;
permanent_prompt = FALSE;
}
void gui_entry_deinit(void)
{
if (prompt != NULL) g_free(prompt);
g_string_free(entry, TRUE);
}
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