layout fix

README.md

@@ -186,6 +186,30 @@ Note: direct commands like `\paperwidth{...}` or `\color{...}` would clash with
 - `bgscale=`: background image scale, default `1.0`
 - `bgopacity=`: background image opacity, default `1.0`
 
+Standard Layout Blueprint (Normalfall)
+======================================
+
+The diagram below shows the default `layout=standard` with `header=true` and `qr=true`
+(`qrfirst` variant: QR on the left, text on the right):
+
+![Standard layout blueprint](screenshots/layout-standard.svg)
+
+What Influences What (Standard Layout)
+--------------------------------------
+
+- `paperwidth/paperheight/contentwidth/contentheight/padding`: define the outer geometry of the whole card.
+- `header/noheader`: enables/disables the complete top block (name/logo/company line + separator line).
+- `logo` + `logoheight`: affects header composition and reserved vertical space.
+- `company[height=...]` / `companylogo[height=...]`: affects second header line and reserved space.
+- `textwidth` and `qrwidth`: define horizontal split of body columns.
+- `qr/noqr`: removes the QR column; text then uses full body width.
+- `qrfirst/textfirst`: swaps left/right order of QR and text columns.
+- `icon/noicon`, `hint/nohint`, `iconleft/iconright`, `fill/nofill`: only affect formatting inside text lines.
+- address field presence/visibility: controls whether address block (and map-pin icon) is rendered.
+- `pgpfingerprint`: adds an extra footer line and reserves additional vertical space.
+- `background`/`bgscale`/`bgopacity`: visual background only, no content reflow.
+- `qrlogo`/`qreclevel`/`qrlogoscale`/`qrlogoborder`: QR internals only, no column reflow.
+
 
 Data Definitions
 ================
@@ -323,6 +347,8 @@ Alternative: centered back side without QR and without header:
 \drawcard[layout=centered,noqr,noheader]
 ```
 
+Complete working example: [centered-backside-example.tex](examples/centered-backside-example.tex)
+
 Equivalent using setter commands:
 
 ```latex

businesscard-qrcode.cls

@@ -564,7 +564,13 @@
 % Uses actual logo height if logo is taller than default reserved space
 % This is computed as a length and stored, not a macro
 \newcommand\computeheightscale{%
-  \setlength{\BCQ@reservedheight}{\dimexpr2em+\ifhaspersonalname{\ifhaspositionblock{\BCQ@companybrandingheight}{0pt}}{0pt}\relax}%
+  \ifBCQ@header
+    \setlength{\BCQ@reservedheight}{\dimexpr
+      \ifhaspersonalname{2em}{\ifhaspositionblock{0pt}{2em}}%
+      +\ifhaspositionblock{\BCQ@companybrandingheight}{0pt}\relax}%
+  \else
+    \setlength{\BCQ@reservedheight}{0pt}%
+  \fi
   \ifdim\BCQ@logoheightdimen>\BCQ@reservedheight
     \setlength{\BCQ@heightscale}{\dimexpr\textheight-\BCQ@logoheightdimen-\ifcsdef{Xpgpfingerprint}{2em}{0em}\relax}%
   \else
@@ -786,11 +792,11 @@ END:VCARD\BCQ@nl}
       \ifhasaddressvisible{%
         \ifBCQ@iconleft
           \ifBCQ@icon\parbox[c]{1em}{\faMapMarker}\ \ifBCQ@fill\hfill\fi\fi
-          \begin{varwidth}{\dimexpr#1-2em\relax}
+          \begin{varwidth}{\dimexpr\textwidth-2em\relax}
             \ifBCQ@rightalign\enforceright\fi\address
           \end{varwidth}
         \else
-          \begin{varwidth}{\dimexpr#1-2em\relax}
+          \begin{varwidth}{\dimexpr\textwidth-2em\relax}
             \ifBCQ@rightalign\enforceright\fi\address
           \end{varwidth}
           \ifBCQ@icon\ifBCQ@fill\hfill\fi\ \parbox[c]{1em}{\faMapMarker}\fi

configure.ac

@@ -13,7 +13,7 @@ AC_CHECK_PROG([pandoc])
 AC_CHECK_PROG([convert])
 AC_CHECK_PROG([xelatex])
 
-EXAMPLES="example john-doe-hongkong \
+EXAMPLES="centered-backside-example example john-doe-hongkong \
           peter-muster-example-company-zuerich special-papersize \
           texstudio_d30266 photo-example photo-in-qr-example"
 

makefile.am

@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = foreign
 SUBDIRS = examples screenshots
-EXAMPLES = background-color-example background-image-example example john-doe-hongkong peter-muster-example-company-zuerich photo-example photo-in-qr-example photo-large-example special-papersize test-country-short texstudio_d30266
+EXAMPLES = background-color-example background-image-example centered-backside-example example john-doe-hongkong peter-muster-example-company-zuerich photo-example photo-in-qr-example photo-large-example special-papersize test-country-short texstudio_d30266
 
 dist_latex_DATA = @PACKAGE_NAME@.cls
 dist_doc_DATA = README.md #@PACKAGE_NAME@.pdf