- AZTEC/CHANNEL/CODABLOCKF/CODE16K/CODE49/CODEONE/DATAMATRIX/

DOTCODE/GRIDMATRIX/HANXIN/MICROPDF417/MICROQR/PDF417/QRCODE/
  RMQR/ULTRA: set `option_1/2/3` to values used in encodation
  ("Feedback options"), and add new access methods
  `encodedOption1()` etc. to Qt Backend, and use in GUI to provide
  better feedback on "Automatic" selections
- AZTEC: give more precise warnings in low ECC situations, and
  indicate via `option_1` by setting to -1 (min 3 words), 0
  (<5% + 3 words) (`ecc_ratio`)
- set_height: fix non-compliance false positives by using epsilon
  in checks (prompted by CODABLOCKF non-compliant warning for
  zint-generated compliant height - floating point `rows` mult !=
  `zero_count` div; one test regression for CODE93);
  better warning messages on non-compliant heights (min/max)
- manual/man page: fix DATAMATRIX Sizes tables "28 12x26" ->
  "27 12x26"
- GUI: AZTEC/CODEONE: add Zint versions to comboboxes
- DOTCODE: improve error messages re size too small/large
- ULTRA: better ZINT_TEST codeword dump (ZINT_DEBUG_TEST)
- general: various tabs -> spaces; prettify main .rc files;
  trailing spaces; small amount of code fiddling (CODE16K)

backend/code49.c

@@ -257,6 +257,9 @@ INTERNAL int code49(struct zint_symbol *symbol, unsigned char source[], int leng
         return errtxt(ZINT_ERROR_INVALID_OPTION, symbol, 433, "Minimum number of rows out of range (2 to 8)");
     }
 
+    /* Feedback options */
+    symbol->option_1 = rows;
+
     /* Add row count and mode character */
     c_grid[rows - 1][6] = (7 * (rows - 2)) + M;
 
@@ -374,6 +377,7 @@ INTERNAL int code49(struct zint_symbol *symbol, unsigned char source[], int leng
         const float min_row_height = stripf((8.0f * rows + separator * (rows - 1)) / rows);
         const float default_height = 10.0f * rows + separator * (rows - 1);
         error_number = set_height(symbol, min_row_height, default_height, 0.0f, 0 /*no_errtxt*/);
+        symbol->option_3 = separator; /* Feedback options */
     } else {
         (void) set_height(symbol, 0.0f, 10.0f * rows, 0.0f, 1 /*no_errtxt*/);
     }