/* the one already displayed */
static int brl_writeWindow(BrailleDisplay *brl, const wchar_t *text)
{
brlapi_writeArguments_t arguments = BRLAPI_WRITEARGUMENTS_INITIALIZER;
int vt = currentVirtualTerminal();
if (vt == SCR_NO_VT) {
/* should leave display */
if (prevShown) {
brlapi_write(&arguments);
prevShown = 0;
}
} else {
if (prevShown &&
(memcmp(prevData,brl->buffer,displaySize) == 0) &&
(!text || (wmemcmp(prevText,text,displaySize) == 0)) &&
(brl->cursor == prevCursor)) {
return 1;
}
unsigned char and[displaySize];
memset(and, 0, sizeof(and));
arguments.andMask = and;
arguments.orMask = brl->buffer;
if (text) {
arguments.text = (char*) text;
arguments.textSize = displaySize * sizeof(wchar_t);
arguments.charset = (char*) getWcharCharset();
}
arguments.regionBegin = 1;
arguments.regionSize = displaySize;
arguments.cursor = (brl->cursor != BRL_NO_CURSOR)? (brl->cursor + 1): BRLAPI_CURSOR_OFF;
if (brlapi_write(&arguments)==0) {
memcpy(prevData,brl->buffer,displaySize);
wmemcpy(prevText,text,displaySize);
prevCursor = brl->cursor;
prevShown = 1;
} else {
logMessage(LOG_ERR, "write: %s", brlapi_strerror(&brlapi_error));
restart = 1;
}
}
return 1;
}
int
registerCharacterSet (const char *charset) {
const char *const wcharCharset = getWcharCharset();
typedef struct {
iconv_t *handle;
const char *fromCharset;
const char *toCharset;
unsigned permanent:1;
iconv_t newHandle;
} ConvEntry;
ConvEntry convTable[] = {
{&iconvCharToWchar, charset, wcharCharset, 0, CHARSET_ICONV_NULL},
{&iconvWcharToChar, wcharCharset, charset, 0, CHARSET_ICONV_NULL},
{NULL, NULL, NULL, 1, CHARSET_ICONV_NULL}
};
ConvEntry *conv = convTable;
while (conv->handle) {
if (conv->permanent && (*conv->handle != CHARSET_ICONV_NULL)) {
conv->newHandle = CHARSET_ICONV_NULL;
} else if ((conv->newHandle = iconv_open(conv->toCharset, conv->fromCharset)) == CHARSET_ICONV_NULL) {
logSystemError("iconv_open");
while (conv != convTable)
if ((--conv)->newHandle != CHARSET_ICONV_NULL)
iconv_close(conv->newHandle);
return 0;
} else if (conv->permanent) {
*conv->handle = conv->newHandle;
conv->newHandle = CHARSET_ICONV_NULL;
}
conv += 1;
}
while (conv != convTable) {
if ((--conv)->newHandle != CHARSET_ICONV_NULL) {
if (*conv->handle != CHARSET_ICONV_NULL) iconv_close(*conv->handle);
*conv->handle = conv->newHandle;
}
}
return 1;
}
int
registerCharacterSet (const char *charset) {
int firstTime = 0;
const char *const wcharCharset = getWcharCharset();
typedef struct {
iconv_t *const handle;
const char *const fromCharset;
const char *const toCharset;
iconv_t newHandle;
} ConvEntry;
ConvEntry convTable[] = {
{ .handle = &iconvCharToWchar,
.fromCharset = charset,
.toCharset = wcharCharset
},
{ .handle = &iconvWcharToChar,