char *fb_ConsoleReadStr( char *buffer, int len )
{
int k, x, y, cols, pos = 0;
char ch[2] = { 0, '\0' };
if (!__fb_con.inited)
return fgets(buffer, len, stdin);
fb_ConsoleGetSize(&cols, NULL);
do {
while( ((k = fb_hGetCh(TRUE)) == -1) || (k > 0xFF) )
fb_Delay( 10 );
/* drop subsequent keypresses, if any; this is needed to avoid escape
* sequence parsing problems in the fb_ConsoleGetXY() call below.
*/
while( fb_hGetCh(TRUE) >= 0 )
fb_Delay( 10 );
fb_ConsoleGetXY(&x, &y);
if (k == 8) {
if (pos > 0) {
x--;
if (x <= 0) {
x = cols;
y--;
if (y <= 0)
x = y = 1;
}
fb_hTermOut(SEQ_LOCATE, x-1, y-1);
fb_hTermOut(SEQ_DEL_CHAR, 0, 0);
pos--;
}
} else if (k != '\t') {
if (pos < len - 1) {
buffer[pos++] = ch[0] = k;
fb_ConsolePrintBuffer(ch, 0);
if (x == cols)
fputc( '\n', stdout );
}
}
} while (k != '\r');
fputc( '\n', stdout );
buffer[pos] = '\0';
return buffer;
}
int fb_DevScrnRead( FB_FILE *handle, void* value, size_t *pLength )
{
size_t length;
DEV_SCRN_INFO *info;
int copy_length;
char *pachBuffer = (char*) value;
FB_LOCK();
DBG_ASSERT(pLength!=NULL);
length = *pLength;
info = (DEV_SCRN_INFO*) FB_HANDLE_DEREF(handle)->opaque;
while( length > 0 ) {
copy_length = (length > info->length) ? info->length : length;
if (copy_length==0) {
while( fb_KeyHit( ) == 0 )
fb_Delay( 25 ); /* release time slice */
fb_DevScrnFillInput( info );
if( info->length != 0 )
continue;
break;
}
memcpy(pachBuffer, info->buffer, copy_length);
info->length -= copy_length;
if (info->length!=0) {
memmove(info->buffer,
info->buffer + copy_length,
info->length);
}
length -= copy_length;
pachBuffer += copy_length;
}
FB_UNLOCK();
if (length!=0)
memset(pachBuffer, 0, length);
*pLength -= length;
return fb_ErrorSetNum( FB_RTERROR_OK );
}
FBCALL FBSTRING *fb_ConReadLine( int soft_cursor )
{
FBSTRING result = { 0 };
int current_x, current_y;
int cols, rows;
size_t pos, len, tmp_buffer_len = 0;
int cursor_visible;
int k;
char ch, tmp_buffer[12];
fb_GetSize(&cols, &rows);
cursor_visible = (fb_Locate( 0, 0, -1, 0, 0 ) & 0x10000) != 0;
fb_Locate( 0, 0, FALSE, 0, 0 );
pos = len = 0;
fb_PrintBufferEx( NULL, 0, 0 );
/* Ensure that the cursor is visible during INPUT */
fb_Locate( 0, 0, (soft_cursor == FALSE), 0, 0 );
do {
size_t delete_char_count = 0, add_char = FALSE;
FBSTRING *sTmp;
fb_GetXY(¤t_x, ¤t_y);
if( soft_cursor )
{
fb_PrintFixString( 0, "\377", 0 );
fb_Locate( current_y, current_x, FALSE, 0, 0 );
}
while( fb_KeyHit( ) == 0 )
{
fb_Delay( 25 ); /* release time slice */
}
sTmp = fb_Inkey( );
if( sTmp->data != NULL )
{
if( FB_STRSIZE(sTmp) == 2 )
{
k = FB_MAKE_EXT_KEY(sTmp->data[1]);
ch = 0;
}
else
{
k = FB_MAKE_KEY(ch = sTmp->data[0]);
}
fb_hStrDelTemp( sTmp );
}
else
{
k = 0;
continue;
}
if( soft_cursor )
{
char mask[2] = { ((result.data != NULL) && (pos < len)? result.data[pos]: ' '), '\0' };
fb_PrintFixString( 0, mask, 0 );
fb_Locate( current_y, current_x, FALSE, 0, 0 );
}
switch (k) {
case 8:
/* DEL */
if (pos!=0) {
DoMove( ¤t_x, ¤t_y, -1, 0, cols, rows );
--pos;
delete_char_count = 1;
}
break;
case 9:
/* TAB */
tmp_buffer_len = ((pos + 8) / 8 * 8) - pos;
memset(tmp_buffer, 32, tmp_buffer_len);
add_char = TRUE;
break;
case 27:
/* ESC */
DoMove( ¤t_x, ¤t_y, -pos, 0, cols, rows );
pos = 0;
delete_char_count = len;
break;
case FB_MAKE_EXT_KEY(0x53):
/* CLeaR */
if( len!=pos ) {
delete_char_count = 1;
} else {
fb_Beep();
}
break;
case FB_MAKE_EXT_KEY(0x4B):
/* Cursor LEFT */
if( pos != 0 ) {
DoMove( ¤t_x, ¤t_y, -1, 0, cols, rows );
--pos;
}
break;
case FB_MAKE_EXT_KEY(0x4D):
/* Cursor RIGHT */
if( pos != len ) {
DoMove( ¤t_x, ¤t_y, 1, 0, cols, rows );
++pos;
}
break;
case FB_MAKE_EXT_KEY(0x47):
/* HOME */
DoMove( ¤t_x, ¤t_y, -pos, 0, cols, rows );
pos = 0;
break;
case FB_MAKE_EXT_KEY(0x4F):
/* END */
DoMove( ¤t_x, ¤t_y, len-pos, 0, cols, rows );
pos = len;
break;
case FB_MAKE_EXT_KEY(0x48):
/* Cursor UP */
if( pos >= cols) {
DoMove( ¤t_x, ¤t_y, -cols, 0, cols, rows );
pos -= cols;
}
break;
case FB_MAKE_EXT_KEY(0x50):
/* Cursor DOWN */
if( ( pos + cols ) <= len ) {
DoMove( ¤t_x, ¤t_y, cols, 0, cols, rows );
pos += cols;
}
break;
default:
if( k>=32 && k<=255 ) {
tmp_buffer[0] = (char) k;
tmp_buffer_len = 1;
add_char = TRUE;
/* DoMove( ¤t_x, ¤t_y, 1, 0, cols ); */
}
break;
}
if( delete_char_count!=0 || add_char ) {
/* Turn off the cursor during output (speed-up) */
fb_Locate( 0, 0, FALSE, 0, 0 );
}
if( delete_char_count ) {
FBSTRING *str_fill;
FBSTRING *str_left = fb_StrMid( &result, 1, pos );
FBSTRING *str_right = fb_StrMid( &result,
pos + 1 + delete_char_count,
len - pos - delete_char_count);
fb_StrAssign( &result, -1, str_left, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_right, -1, FALSE );
len -= delete_char_count;
FB_LOCK();
fb_PrintBufferEx( result.data + pos, len - pos, 0 );
/* Overwrite all deleted characters with SPC's */
str_fill = fb_StrFill1 ( delete_char_count, ' ' );
fb_PrintBufferEx( str_fill->data, delete_char_count, 0 );
fb_hStrDelTemp( str_fill );
fb_Locate( current_y, current_x, -1, 0, 0 );
FB_UNLOCK();
}
if( add_char ) {
tmp_buffer[tmp_buffer_len] = 0;
}
if( add_char ) {
int old_x = current_x, old_y = current_y;
FBSTRING *str_add = fb_StrAllocTempDescF( tmp_buffer, tmp_buffer_len + 1 );
FBSTRING *str_left = fb_StrMid( &result, 1, pos );
FBSTRING *str_right = fb_StrMid( &result, pos + 1, len - pos);
fb_StrAssign( &result, -1, str_left, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_add, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_right, -1, FALSE );
len += tmp_buffer_len;
FB_LOCK();
fb_PrintBufferEx( result.data + pos, len - pos, 0 );
fb_GetXY(¤t_x, ¤t_y);
if( pos==(len-tmp_buffer_len) ) {
current_x = old_x; current_y = old_y;
DoMove( ¤t_x, ¤t_y, tmp_buffer_len, 0, cols, rows );
} else {
int tmp_x_2 = old_x, tmp_y_2 = old_y;
DoAdjust( &tmp_x_2, &tmp_y_2, len - pos, 0, cols, rows );
if( tmp_y_2 > (rows+1) || (tmp_y_2==(rows+1) && tmp_x_2>1) ) {
DoMove( ¤t_x, ¤t_y, -(len - pos - tmp_buffer_len), 0, cols, rows );
} else {
current_x = old_x; current_y = old_y;
DoMove( ¤t_x, ¤t_y, tmp_buffer_len, 0, cols, rows );
}
}
pos += tmp_buffer_len;
FB_UNLOCK();
}
fb_Locate( 0, 0, (soft_cursor == FALSE), 0, 0 );
} while (k!='\r' && k!='\n');
FB_LOCK();
/* set cursor to end of line */
fb_GetXY(¤t_x, ¤t_y);
DoMove( ¤t_x, ¤t_y, len - pos, 0, cols, rows );
/* Restore old cursor visibility */
fb_Locate( 0, 0, cursor_visible, 0, 0 );
FB_UNLOCK();
return fb_StrAllocTempResult( &result );
}
char *fb_ConsoleReadStr( char *buffer, int len )
{
#if defined( HOST_UNIX )
int k, x, y, cols, pos = 0;
char ch[2] = { 0, '\0' };
if (!__fb_con.inited)
return fgets(buffer, len, stdin);
fb_ConsoleGetSize(&cols, NULL);
do {
while( ((k = fb_hGetCh(TRUE)) == -1) || (k & 0x100) )
fb_Delay( 10 );
/* drop subsequent keypresses, if any; this is needed to avoid escape
* sequence parsing problems in the fb_ConsoleGetXY() call below.
*/
while( fb_hGetCh(TRUE) >= 0 )
fb_Delay( 10 );
fb_ConsoleGetXY(&x, &y);
if (k == 8) {
if (pos > 0) {
x--;
if (x <= 0) {
x = cols;
y--;
if (y <= 0)
x = y = 1;
}
fb_hTermOut(SEQ_LOCATE, x-1, y-1);
fb_hTermOut(SEQ_DEL_CHAR, 0, 0);
pos--;
}
} else if (k != '\t') {
if (pos < len - 1) {
buffer[pos++] = ch[0] = k;
fb_ConsolePrintBuffer(ch, 0);
if (x == cols)
fputc('\n', __fb_con.f_out);
}
}
} while (k != '\r');
fputc('\n', __fb_con.f_out);
buffer[pos] = '\0';
return buffer;
#elif defined( HOST_WIN32 )
char *res;
fb_hRestoreConsoleWindow( );
FB_CON_CORRECT_POSITION();
fb_hConsolePutBackEvents( );
res = fgets( buffer, len, stdin );
fb_hUpdateConsoleWindow( );
return res;
#else
return fgets( buffer, len, stdin );
#endif
}