- API: add new zint_symbol dpmm field for output resolution (BMP/

EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG)
- Add support for specifying scale by X-dimension and resolution
  with new option `--scalexdimdp` for CLI/Tcl & new API function
  `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()`
  & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document
- BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF
  following Inkscape)
- backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`,
  `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff
  incl. new `QZintXdimDp` struct for passing around scale vars &
  use in `getAsCLI()`; add comments
- Raise `scale` limit to 200 (from 100) to allow for large dpmm
- output: create directories & subdirectories as necessary for
  output path using new function `out_fopen()` and use in BMP/EMF/
  EPS/GIF/PCX/PNG/SVG/TIF
- DPLEIT/DPIDENT: format HRT according to (incomplete)
  documentation, and set default height to 72X (from 50X)
- CODE128B renamed to CODE128AB as can use subsets A and/or B
- CODABAR: fix minimum height calc
- EMF: fix indexing of handles (zero-based not 1-based)
- GUI: fix symbology zap (previous technique of clearing and
  re-loading settings without doing a sync no longer works);
  fix UPCEAN guard descent enable
- MAILMARK: better error message if input < 14 characters
- GUI: add "Default" button for DAFT tracker ratio & enable/disable
  various default buttons; use new `takesGS1AIData()` to
  enable/disable GS1-specific checkboxes
- CLI: use new `validate_float()` to parse float options (7
  significant digits allowed only, no scientific notation)
- DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp
  ID parse
- library/CLI: fiddle with static asserts (make CHAR_BIT sensitive,
  supposedly)
- win32/README: update building libpng (assembly removed)
- README.linux: document incompatibility of Qt6 >= 6.3
- manual: expand Barcode Studio waffle
- test suite: change range separator to hyphen and allow multiple
  excludes

backend/medical.c

@@ -188,7 +188,8 @@ INTERNAL int pharma_two(struct zint_symbol *symbol, unsigned char source[], int
 
     if (symbol->output_options & COMPLIANT_HEIGHT) {
         /* Laetus Pharmacode Guide 1.4
-           Two-track height min 8mm / 2mm (X max) = 4, standard 8mm / 1mm = 8, max 12mm / 0.8mm (X min) = 15 */
+           Two-track height min 8mm / 2mm (X max) = 4X (2X per row), standard 8mm / 1mm = 8X,
+           max 12mm / 0.8mm (X min) = 15X */
         error_number = set_height(symbol, 2.0f, 8.0f, 15.0f, 0 /*no_errtxt*/);
     } else {
         (void) set_height(symbol, 0.0f, 10.0f, 0.0f, 1 /*no_errtxt*/);
@@ -270,11 +271,11 @@ INTERNAL int codabar(struct zint_symbol *symbol, unsigned char source[], int len
     expand(symbol, dest, d - dest);
 
     if (symbol->output_options & COMPLIANT_HEIGHT) {
-        /* BS EN 798:1995 4.4.1 (d) max of 5mm / 0.191mm (X) ~ 26.178 or 15% of width where (taking N = narrow/wide
-           ratio as 2 and I = X) width = ((2 * N + 5) * C + (N – 1) * (D + 2)) * X + I * (C – 1) + 2Q
+        /* BS EN 798:1995 4.4.1 (d) max of 5mm / 0.43mm (X max) ~ 11.628 or 15% of width where (taking N =
+           narrow/wide ratio as 2 and I = X) width = ((2 * N + 5) * C + (N – 1) * (D + 2)) * X + I * (C – 1) + 2Q
            = ((4 + 5) * C + (D + 2) + C - 1 + 2 * 10) * X = (10 * C + D + 21) * X
            Length (C) includes start/stop chars */
-        const float min_height_min = stripf(5.0f / 0.191f);
+        const float min_height_min = stripf(5.0f / 0.43f);
         float min_height = stripf((10.0f * ((add_checksum ? length + 1 : length) + 2.0f) + d_chars + 21.0f) * 0.15f);
         if (min_height < min_height_min) {
             min_height = min_height_min;