improve how card content is drawn

* Card content is always bottom aligned at \contentBottom
* Only use one node instead of two to draw \splitcontent
* Draw content background relative to the content size
* Remove now obsolete \contentsplit variants

1 files changed, 41 insertions, 39 deletions

diff --git a/latex/tikzcards.tex b/latex/tikzcards.tex
index 3890de4b..e6389f75 100644
--- a/latex/tikzcards.tex
+++ b/latex/tikzcards.tex
@@ -10,6 +10,9 @@
 \pgfmathsetmacro{\strippadding}{0.2}
 \pgfmathsetmacro{\textpadding}{0.1}
 \pgfmathsetmacro{\titley}{\cardheight-\strippadding-1.5*\textpadding-0.5*\stripwidth}
+\pgfmathsetmacro{\contentTextWidth}{(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm}
+\pgfmathsetmacro{\contentLeft}{2*\strippadding + \stripwidth + \textpadding}
+\pgfmathsetmacro{\contentBottom}{1 + \textpadding}
 
 
 % Formen der einzelnen Kartenelemente/-bestandteile
@@ -19,9 +22,22 @@
 \def\shapeRightStripShortHigh{(\cardwidth-\stripwidth-\strippadding,\cardheight-\strippadding-1) rectangle (\cardwidth-\strippadding,\cardheight+0.2)}
 \def\shapeRightStripShortLow{(\cardwidth-\stripwidth-\strippadding,-0.2) rectangle (\cardwidth-\strippadding,1)}
 \def\shapeTitleArea{(2*\strippadding+\stripwidth,\cardheight-\strippadding) rectangle (\cardwidth-2*\strippadding-\stripwidth,\cardheight-2*\stripwidth)}
-\def\shapeContentArea{(2*\strippadding+\stripwidth,0.5*\cardheight) rectangle (\cardwidth+0.2,-0.2)}
 
 
+% macro to get the height of an node
+% https://tex.stackexchange.com/questions/554237/how-can-i-get-the-height-of-a-tikz-node-and-store-it-in-a-length
+\makeatletter % allow use of @
+\NewDocumentCommand {\getnodedimen} {O{\nodewidth} O{\nodeheight} m} {
+    \begin{pgfinterruptboundingbox}
+        \begin{scope}[local bounding box=bb@temp]
+            \node[inner sep=0pt, fit=(#3)] {};
+        \end{scope}
+        \path ($(bb@temp.north east)-(bb@temp.south west)$);
+    \end{pgfinterruptboundingbox}
+    \pgfgetlastxy{#1}{#2}
+}
+\makeatother % end use of @
+
 % Stylings für die Elemente definieren
 \tikzset{
     %   runde Ecken für die Karten
@@ -96,47 +112,25 @@
 
 % Inhalt der Karte
 \newcommand{\cardsplitcontent}[2]{
-    \begin{scope}[even odd rule]
-        \clip[cardcorners] \shapeCard;
-        \fill[elementcorners,contentbg] \shapeContentArea;
-    \end{scope}
-    % \node[draw, below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding + \heightof{)#1}) {
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding + 0.8) {
-        \textit{\normalsize #1}
-    };
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight - 0.8) {
-        \vrule width \textwidth height 2pt \\[-2pt]
-        \vspace{0.2cm}
-        {\normalsize #2}
-    };
-}
+    % \begin{scope}[even odd rule]
+        % \clip[cardcorners] \shapeCard;
+    % \end{scope}
 
-\newcommand{\cardsplitcontentsingleline}[2]{
-    \begin{scope}[even odd rule]
-        \clip[cardcorners] \shapeCard;
-        \fill[elementcorners,contentbg] \shapeContentArea;
-    \end{scope}
-    % \node[draw, below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding + \heightof{)#1}) {
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding) {
+    % draw content node just to get its dimensions
+    \node(content)[above right, minimum width=\cardwidth, text width=\contentTextWidth] at (\contentLeft, \contentBottom) {
         \textit{\normalsize #1}
-    };
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight - 0.8) {
         \vrule width \textwidth height 2pt \\[-2pt]
         \vspace{0.2cm}
         {\normalsize #2}
     };
-}
 
-\newcommand{\cardsplitcontenttwolines}[2]{
-    \begin{scope}[even odd rule]
-        \clip[cardcorners] \shapeCard;
-        \fill[elementcorners,contentbg] \shapeContentArea;
-    \end{scope}
-    % \node[draw, below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding + \heightof{)#1}) {
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight-\textpadding + 0.4) {
+    % draw content background using dimensions of the content node
+    \getnodedimen{content}
+    \node[fill=contentbg, above right, elementcorners, minimum height=\nodeheight, minimum width=\nodewidth + 1] at (\contentLeft - \textpadding, \contentBottom) {};
+
+    % redraw content so it is on top of the background
+    \node()[above right, minimum width=\cardwidth, text width=\contentTextWidth] at (\contentLeft, \contentBottom) {
         \textit{\normalsize #1}
-    };
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 0.5*\cardheight - 0.8) {
         \vrule width \textwidth height 2pt \\[-2pt]
         \vspace{0.2cm}
         {\normalsize #2}
@@ -145,11 +139,19 @@
 
 % Inhalt der Karte
 \newcommand{\cardcontent}[1]{
-    \begin{scope}[even odd rule]
-        \clip[cardcorners] \shapeCard;
-        \fill[elementcorners,contentbg] \shapeContentArea;
-    \end{scope}
-    \node[below right, text width=(\cardwidth-2*\strippadding-\stripwidth-2*\textpadding-0.3)*1cm] at (2*\strippadding+\stripwidth+\textpadding, 3) {
+    % \begin{scope}[even odd rule]
+        % \clip[cardcorners] \shapeCard;
+    % \end{scope}
+    \node(content)[above right, text width=\contentTextWidth] at (\contentLeft, \contentBottom) {
+        \textit{\normalsize #1}
+    };
+
+    % draw content background using dimensions of the content node
+    \getnodedimen{content}
+    \node[fill=contentbg, above right, elementcorners, minimum height=\nodeheight, minimum width=\nodewidth + 1] at (\contentLeft - \textpadding, \contentBottom) {};
+
+    % redraw content so it is on top of the background
+    \node[above right, text width=\contentTextWidth] at (\contentLeft, \contentBottom) {
         \textit{\normalsize #1}
     };
 }