- 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_tcl/demo/demo.tcl

@@ -31,29 +31,29 @@ proc Generate {} {
     if {[catch {zint encode [.e get] ::zintimg -barcode [.c get] {*}[.o get]} e]} {
         tk_messageBox -message $e -title "Zint error"
     } else {
-	set w [image width ::zintimg]
-	set h [image height ::zintimg]
-	set lw [winfo width .l]
-	set lh [winfo height .l]
-	set sx [expr {int(1.0 * $lw / $w)}]
-	set sy [expr {int(1.0 * $lh / $h)}]
-	if {$sy < $sx} {
-	    set sx $sy
-	}
-	if {$sx <= 0} {
-	    set sx [expr {1.1 * $lw / $w}]
-	    set sy [expr {1.1 * $lh / $h}]
-	    if {$sy < $sx} {
-		set sx $sy
-	    }
-	}
-	::zintimg blank
-	::zintimg configure -width 1 -height 1
-	::zintimg blank
-	::zintimg configure -width 0 -height 0
-	catch {
-	    zint encode [.e get] ::zintimg -barcode [.c get] -scale $sx {*}[.o get]
-	}
+        set w [image width ::zintimg]
+        set h [image height ::zintimg]
+        set lw [winfo width .l]
+        set lh [winfo height .l]
+        set sx [expr {int(1.0 * $lw / $w)}]
+        set sy [expr {int(1.0 * $lh / $h)}]
+        if {$sy < $sx} {
+            set sx $sy
+        }
+        if {$sx <= 0} {
+            set sx [expr {1.1 * $lw / $w}]
+            set sy [expr {1.1 * $lh / $h}]
+            if {$sy < $sx} {
+                set sx $sy
+            }
+        }
+        ::zintimg blank
+        ::zintimg configure -width 1 -height 1
+        ::zintimg blank
+        ::zintimg configure -width 0 -height 0
+        catch {
+            zint encode [.e get] ::zintimg -barcode [.c get] -scale $sx {*}[.o get]
+        }
     }
 }
 pack [label .l -image ::zintimg -bg white] -side top -fill both -expand 1 \