From 14adc6fb7674bb038c1632e20c4e6db89f8d0cb4 Mon Sep 17 00:00:00 2001
From: Xu Yuan <xu@informatik.hu-berlin.de>
Date: Mon, 2 Sep 2013 14:52:18 +0200
Subject: hide number option

---
 dev/demo/hide-number.tex |  3 +++
 dev/pgf-pie-manual.tex   |  4 ++++
 dev/pgf-pie.sty          | 23 +++++++++++++++++------
 3 files changed, 24 insertions(+), 6 deletions(-)
 create mode 100644 dev/demo/hide-number.tex

diff --git a/dev/demo/hide-number.tex b/dev/demo/hide-number.tex
new file mode 100644
index 0000000..5325217
--- /dev/null
+++ b/dev/demo/hide-number.tex
@@ -0,0 +1,3 @@
+\begin{tikzpicture}
+  \pie[hide number]{10/A, 20/B, 30/C, 40/D}
+\end{tikzpicture}
diff --git a/dev/pgf-pie-manual.tex b/dev/pgf-pie-manual.tex
index 8afb987..dd13210 100644
--- a/dev/pgf-pie-manual.tex
+++ b/dev/pgf-pie-manual.tex
@@ -141,6 +141,10 @@ automatically if user doesn't set it.
 
 \demo[0.6]{before-after-number}
 
+The number also can be hide by \texttt{hide number}:
+
+\demo[0.6]{hide-number}
+
 \paragraph{Scale font}
 The size of font in size pie can be scaled according to how big the
 part is automatically.
diff --git a/dev/pgf-pie.sty b/dev/pgf-pie.sty
index 6a669e3..4afcde2 100644
--- a/dev/pgf-pie.sty
+++ b/dev/pgf-pie.sty
@@ -45,7 +45,7 @@ chart by using PGF/Tikz package.]
   {
     % label and number together
     \path (O) -- ++(\midangle:\innerpos) node
-    {\scalefont{#3}\shortstack{#4\\\beforenumber#3\afternumber}};
+    {\scalefont{#3}\shortstack{#4\\\pgfpie@numbertext{#3}}};
   }
   {
     % label
@@ -57,7 +57,7 @@ chart by using PGF/Tikz package.]
 
     % number
     \path (O) -- ++(\midangle:\innerpos) node
-    {\scalefont{#3}\beforenumber#3\afternumber};
+    {\scalefont{#3}\pgfpie@numbertext{#3}};
   }
 }
 
@@ -96,11 +96,11 @@ chart by using PGF/Tikz package.]
   \ifthenelse{\equal{\pgfpie@text}{inside}}
   {
     \draw[fill=#4, \style] (#1) rectangle node
-    {\scalefont{#3}\shortstack{#5\\\beforenumber#3\afternumber}} ++(#2);
+    {\scalefont{#3}\shortstack{#5\\\pgfpie@numbertext{#3}}} ++(#2);
   }
   {
     \draw[fill=#4, \style] (#1) rectangle node
-    {\scalefont{#3}\beforenumber#3\afternumber} ++(#2);
+    {\scalefont{#3}\pgfpie@numbertext{#3}} ++(#2);
   }
 }
 
@@ -115,10 +115,10 @@ chart by using PGF/Tikz package.]
   \draw[fill=#4, #5] (#1) circle[radius=#2];
   \ifthenelse{\equal{\pgfpie@text}{inside}}
   {
-    \node at (#1) {\scalefont{#3}\shortstack{#6\\\beforenumber#3\afternumber}};
+    \node at (#1) {\scalefont{#3}\shortstack{#6\\\pgfpie@numbertext{#3}}};
   }
   {
-    \node at (#1) {\scalefont{#3}\beforenumber#3\afternumber};
+    \node at (#1) {\scalefont{#3}\pgfpie@numbertext{#3}};
   }
 }
 
@@ -179,6 +179,16 @@ chart by using PGF/Tikz package.]
   \fi
 }
 
+\newif\ifhidenumber
+\pgfkeys{/hide number/.is if=hidenumber}
+\newcommand{\pgfpie@numbertext}[1]
+{
+  \ifhidenumber
+  \else
+  \beforenumber#1\afternumber
+  \fi
+}
+
 \newcommand{\pie}[2][]
 {
   % load default parameters
@@ -199,6 +209,7 @@ chart by using PGF/Tikz package.]
     square=false,
     cloud=false,
     scale font=false,
+    hide number=false
   }
   % load user's parameters
   \pgfkeys{#1}
-- 
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