/**
* @brief Initialize the newt library
* @return int - 0 for success, else < 0
*/
int newtInit(void) {
char * MonoValue, * MonoEnv = "NEWT_MONO";
const char *lang;
int ret;
if ((lang = getenv("LC_ALL")) == NULL)
if ((lang = getenv("LC_CTYPE")) == NULL)
if ((lang = getenv("LANG")) == NULL)
lang = "";
/* slang doesn't support multibyte encodings except UTF-8,
avoid character corruption by redrawing the screen */
if (strstr (lang, ".euc") != NULL)
trashScreen = 1;
(void) strlen(ident);
SLutf8_enable(-1);
SLtt_get_terminfo();
SLtt_get_screen_size();
MonoValue = getenv(MonoEnv);
if ( MonoValue != NULL )
SLtt_Use_Ansi_Colors = 0;
if ((ret = SLsmg_init_smg()) < 0)
return ret;
if ((ret = SLang_init_tty(0, 0, 0)) < 0)
return ret;
initColors();
newtCursorOff();
initKeymap();
SLsignal_intr(SIGWINCH, handleSigwinch);
SLang_getkey_intr_hook = getkeyInterruptHook;
return 0;
}
int newtInit(void) {
char * MonoValue, * MonoEnv = "NEWT_MONO", * lang;
lang = getenv ("LANG");
if (lang && !strcasecmp (lang, "ja_JP.eucJP"))
trashScreen = 1;
/* use the version variable just to be sure it gets included */
strlen(version);
SLtt_get_terminfo();
SLtt_get_screen_size();
MonoValue = getenv(MonoEnv);
if ( MonoValue == NULL ) {
SLtt_Use_Ansi_Colors = 1;
} else {
SLtt_Use_Ansi_Colors = 0;
}
SLsmg_init_smg();
SLang_init_tty(0, 0, 0);
newtSetColors(newtDefaultColorPalette);
newtCursorOff();
/*initKeymap();*/
/*memset(&sa, 0, sizeof(sa));
sa.sa_handler = handleSigwinch;
sigaction(SIGWINCH, &sa, NULL);*/
SLsignal_intr(SIGWINCH, handleSigwinch);
SLang_getkey_intr_hook = getkeyInterruptHook;
return 0;
}
static struct eventResult listboxEvent(newtComponent co, struct event ev) {
struct eventResult er;
struct listbox * li = co->data;
struct items *item;
int i;
er.result = ER_IGNORED;
if(ev.when == EV_EARLY || ev.when == EV_LATE) {
return er;
}
switch(ev.event) {
case EV_KEYPRESS:
if (!li->isActive) break;
switch(ev.u.key) {
case ' ':
if(!(li->flags & NEWT_FLAG_MULTIPLE)) break;
newtListboxSelectItem(co, newtListboxGetCurrent(co),
NEWT_FLAGS_TOGGLE);
er.result = ER_SWALLOWED;
/* We don't break here, because it is cool to be able to
hold space to select a bunch of items in a list at once */
case NEWT_KEY_DOWN:
if(li->numItems <= 0) break;
if(li->currItem < li->numItems - 1) {
li->currItem++;
if(li->currItem > (li->startShowItem + li->curHeight - 1)) {
li->startShowItem = li->currItem - li->curHeight + 1;
if(li->startShowItem + li->curHeight > li->numItems)
li->startShowItem = li->numItems - li->curHeight;
}
if(li->sb)
newtScrollbarSet(li->sb, li->currItem + 1, li->numItems);
listboxDraw(co);
}
if(co->callback) co->callback(co, co->callbackData);
er.result = ER_SWALLOWED;
break;
case NEWT_KEY_ENTER:
if(li->numItems <= 0) break;
if(li->flags & NEWT_FLAG_RETURNEXIT)
er.result = ER_EXITFORM;
break;
case NEWT_KEY_UP:
if(li->numItems <= 0) break;
if(li->currItem > 0) {
li->currItem--;
if(li->currItem < li->startShowItem)
li->startShowItem = li->currItem;
if(li->sb)
newtScrollbarSet(li->sb, li->currItem + 1, li->numItems);
listboxDraw(co);
}
if(co->callback) co->callback(co, co->callbackData);
er.result = ER_SWALLOWED;
break;
case NEWT_KEY_PGUP:
if(li->numItems <= 0) break;
li->startShowItem -= li->curHeight - 1;
if(li->startShowItem < 0)
li->startShowItem = 0;
li->currItem -= li->curHeight - 1;
if(li->currItem < 0)
li->currItem = 0;
newtListboxRealSetCurrent(co);
er.result = ER_SWALLOWED;
break;
case NEWT_KEY_PGDN:
if(li->numItems <= 0) break;
li->startShowItem += li->curHeight;
if(li->startShowItem > (li->numItems - li->curHeight)) {
li->startShowItem = li->numItems - li->curHeight;
}
li->currItem += li->curHeight;
if(li->currItem >= li->numItems) {
li->currItem = li->numItems - 1;
}
newtListboxRealSetCurrent(co);
er.result = ER_SWALLOWED;
break;
case NEWT_KEY_HOME:
if(li->numItems <= 0) break;
newtListboxSetCurrent(co, 0);
er.result = ER_SWALLOWED;
break;
case NEWT_KEY_END:
if(li->numItems <= 0) break;
li->startShowItem = li->numItems - li->curHeight;
if(li->startShowItem < 0)
li->startShowItem = 0;
li->currItem = li->numItems - 1;
newtListboxRealSetCurrent(co);
er.result = ER_SWALLOWED;
break;
default:
if (li->numItems <= 0) break;
if (ev.u.key < NEWT_KEY_EXTRA_BASE && isalpha(ev.u.key)) {
for(i = 0, item = li->boxItems; item != NULL &&
i < li->currItem; i++, item = item->next);
if (item && item->text && (toupper(*item->text) == toupper(ev.u.key))) {
item = item->next;
i++;
} else {
item = li->boxItems;
i = 0;
}
while (item && item->text &&
toupper(*item->text) != toupper(ev.u.key)) {
item = item->next;
i++;
}
if (item) {
li->currItem = i;
if(li->currItem < li->startShowItem ||
li->currItem > li->startShowItem)
li->startShowItem =
li->currItem > li->numItems - li->curHeight ?
li->startShowItem = li->numItems - li->curHeight :
li->currItem;
if(li->sb)
newtScrollbarSet(li->sb, li->currItem + 1, li->numItems);
newtListboxRealSetCurrent(co);
er.result = ER_SWALLOWED;
}
}
}
break;
case EV_FOCUS:
li->isActive = 1;
listboxDraw(co);
if(li->flags & NEWT_FLAG_SHOWCURSOR)
newtCursorOn();
er.result = ER_SWALLOWED;
break;
case EV_UNFOCUS:
li->isActive = 0;
listboxDraw(co);
if(li->flags & NEWT_FLAG_SHOWCURSOR)
newtCursorOff();
er.result = ER_SWALLOWED;
break;
case EV_MOUSE:
/* if this mouse click was within the listbox, make the current
item the item clicked on. */
/* Up scroll arrow */
if (li->sb &&
ev.u.mouse.x == co->left + co->width - li->bdxAdjust - 1 &&
ev.u.mouse.y == co->top + li->bdyAdjust) {
if(li->numItems <= 0) break;
if(li->currItem > 0) {
li->currItem--;
if(li->currItem < li->startShowItem)
li->startShowItem = li->currItem;
if(li->sb)
newtScrollbarSet(li->sb, li->currItem + 1, li->numItems);
listboxDraw(co);
}
if(co->callback) co->callback(co, co->callbackData);
er.result = ER_SWALLOWED;
break;
}
/* Down scroll arrow */
if (li->sb &&
ev.u.mouse.x == co->left + co->width - li->bdxAdjust - 1 &&
ev.u.mouse.y == co->top + co->height - li->bdyAdjust - 1) {
if(li->numItems <= 0) break;
if(li->currItem < li->numItems - 1) {
li->currItem++;
if(li->currItem > (li->startShowItem + li->curHeight - 1)) {
li->startShowItem = li->currItem - li->curHeight + 1;
if(li->startShowItem + li->curHeight > li->numItems)
li->startShowItem = li->numItems - li->curHeight;
}
if(li->sb)
newtScrollbarSet(li->sb, li->currItem + 1, li->numItems);
listboxDraw(co);
}
if(co->callback) co->callback(co, co->callbackData);
er.result = ER_SWALLOWED;
break;
}
if ((ev.u.mouse.y >= co->top + li->bdyAdjust) &&
(ev.u.mouse.y <= co->top + co->height - (li->bdyAdjust * 2)) &&
(ev.u.mouse.x >= co->left + li->bdxAdjust) &&
(ev.u.mouse.x <= co->left + co->width + (li->bdxAdjust * 2))) {
li->currItem = li->startShowItem +
(ev.u.mouse.y - li->bdyAdjust - co->top);
newtListboxRealSetCurrent(co);
listboxDraw(co);
if(co->callback) co->callback(co, co->callbackData);
er.result = ER_SWALLOWED;
break;
}
}
return er;
}
