From 21b62e2ea5b1b04838878732a60d4692f20d51d3 Mon Sep 17 00:00:00 2001
From: Aleks Kissinger <aleks0@gmail.com>
Date: Wed, 2 Jan 2019 12:51:32 +0100
Subject: allow custom tex code via .tikzdefs

---
 src/gui/latexprocess.cpp     | 22 ++++++++++++++++------
 tex/sample/figures/fig.tikz  |  2 +-
 tex/sample/sample.tex        |  2 +-
 tex/sample/sample.tikzdefs   |  6 ++++++
 tex/sample/sample.tikzstyles |  6 +++---
 5 files changed, 27 insertions(+), 11 deletions(-)
 create mode 100644 tex/sample/sample.tikzdefs

diff --git a/src/gui/latexprocess.cpp b/src/gui/latexprocess.cpp
index 0e2185a..992886e 100644
--- a/src/gui/latexprocess.cpp
+++ b/src/gui/latexprocess.cpp
@@ -67,11 +67,6 @@ void LatexProcess::makePreview(QString tikz)
 
     _output->appendPlainText("FOUND: " + pdflatex + "\n");
 
-    // copy active *.tikzstyles file to preview dir
-    if (!tikzit->styleFile().isEmpty() && QFile::exists(tikzit->styleFilePath())) {
-        QFile::copy(tikzit->styleFilePath(), _workingDir.path() + "/" + tikzit->styleFile());
-    }
-
     // copy tikzit.sty to preview dir
     QFile::copy(":/tex/sample/tikzit.sty", _workingDir.path() + "/tikzit.sty");
 
@@ -83,7 +78,22 @@ void LatexProcess::makePreview(QString tikz)
     tex << "\\usepackage{tikzit}\n";
     tex << "\\usepackage[graphics,active,tightpage]{preview}\n";
     tex << "\\PreviewEnvironment{tikzpicture}\n";
-    tex << "\\input{" + tikzit->styleFile() + "}\n";
+
+    // copy active *.tikzstyles file to preview dir
+    if (!tikzit->styleFile().isEmpty() && QFile::exists(tikzit->styleFilePath())) {
+        QFile::copy(tikzit->styleFilePath(), _workingDir.path() + "/" + tikzit->styleFile());
+        tex << "\\input{" + tikzit->styleFile() + "}\n";
+
+        // if there is a *.tikzdefs file with the same basename, copy and include it as well
+        QFileInfo fi(tikzit->styleFilePath());
+        QString defFile = fi.baseName() + ".tikzdefs";
+        QString defFilePath = fi.absolutePath() + "/" + defFile;
+        if (QFile::exists(defFilePath)) {
+            QFile::copy(defFilePath, _workingDir.path() + "/" + defFile);
+            tex << "\\input{" + defFile + "}\n";
+        }
+    }
+
     tex << "\\begin{document}\n\n";
     tex << tikz;
     tex << "\n\n\\end{document}\n";
diff --git a/tex/sample/figures/fig.tikz b/tex/sample/figures/fig.tikz
index b7074a8..f454de2 100644
--- a/tex/sample/figures/fig.tikz
+++ b/tex/sample/figures/fig.tikz
@@ -3,7 +3,7 @@
 		\node [style=red node] (0) at (0, 1) {};
 		\node [style=blue node 2] (1) at (1, 0) {};
 		\node [style=blue node] (2) at (-1, 0) {};
-		\node [style=yellow square] (3) at (0, -1) {foo};
+		\node [style=yellow square] (3) at (0, -1) {\anglevec{\alpha}};
 	\end{pgfonlayer}
 	\begin{pgfonlayer}{edgelayer}
 		\draw [in=-90, out=0] (3) to (1);
diff --git a/tex/sample/sample.tex b/tex/sample/sample.tex
index 1b10cf6..c6fb3ca 100644
--- a/tex/sample/sample.tex
+++ b/tex/sample/sample.tex
@@ -1,7 +1,7 @@
 \documentclass{article}
 \usepackage{tikzit}
 \input{sample.tikzstyles}
-
+\input{sample.tikzdefs}
 
 \begin{document}
 
diff --git a/tex/sample/sample.tikzdefs b/tex/sample/sample.tikzdefs
new file mode 100644
index 0000000..ac25b5a
--- /dev/null
+++ b/tex/sample/sample.tikzdefs
@@ -0,0 +1,6 @@
+% Optional: use this file for definitions that should be used by TikZiT  to generate
+% LaTeX preview. It can also be included in the paper.
+
+\usepackage{bm}
+
+\newcommand{\anglevec}[1]{\ensuremath{\vec{\bm{#1}}}}
diff --git a/tex/sample/sample.tikzstyles b/tex/sample/sample.tikzstyles
index df70248..5790de1 100644
--- a/tex/sample/sample.tikzstyles
+++ b/tex/sample/sample.tikzstyles
@@ -4,9 +4,9 @@
 % \tikzstyle{NAME}=[PROPERTY LIST]
 
 % Node styles
-\tikzstyle{red node}=[fill=red, tikzit category=nodes]
-\tikzstyle{blue node}=[fill=blue]
-\tikzstyle{blue node 2}=[tikzit fill=green, fill=blue]
+\tikzstyle{red node}=[fill=red, tikzit category=nodes, shape=circle, draw=black]
+\tikzstyle{blue node}=[fill=blue, shape=circle, draw=black]
+\tikzstyle{blue node 2}=[tikzit fill=green, fill=blue, shape=circle, draw=black]
 \tikzstyle{yellow square}=[draw=black, fill=yellow, shape=rectangle]
 
 % Edge styles
-- 
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