Extracted class IndentedPrintDecorator from PrettyPrintDecorator

JsonGenerator/IndentedPrintDecorator.h

@@ -0,0 +1,36 @@
+/*
+* Arduino JSON library
+* Benoit Blanchon 2014 - MIT License
+*/
+
+#pragma once
+
+#include "Print.h"
+
+class IndentedPrintDecorator : public Print
+{
+public:
+    
+    IndentedPrintDecorator(Print& p)
+        : sink(p)
+    {
+        pendingTabCount = 0;
+        currentTabCount = 0;
+        isNewLine = true;
+    }
+
+    void indent();
+    void unindent();
+
+    bool isNewLine;
+    virtual size_t write(uint8_t);
+
+private:
+    Print& sink;
+    int currentTabCount;
+    int pendingTabCount;
+
+    size_t writeCurrentTabs();
+    size_t writeTabs(int count);
+};
+