Extracted class IndentedPrintDecorator from PrettyPrintDecorator

JsonGenerator/IndentedPrintDecorator.cpp

@@ -0,0 +1,40 @@
+#include "IndentedPrintDecorator.h"
+
+void IndentedPrintDecorator::indent()
+{
+    currentTabCount++;
+}
+
+void IndentedPrintDecorator::unindent()
+{
+    currentTabCount--;
+}
+
+size_t IndentedPrintDecorator::write(uint8_t c)
+{
+    size_t n = 0;
+
+    if (isNewLine)
+        n += writeCurrentTabs();
+
+    n += sink.write(c);
+
+    isNewLine = c == '\n';
+        
+    return n;
+}
+
+size_t IndentedPrintDecorator::writeCurrentTabs()
+{
+    return writeTabs(currentTabCount);
+}
+
+size_t IndentedPrintDecorator::writeTabs(int count)
+{
+    size_t n = 0;
+
+    for (int i = 0; i<count; i++)
+        n += sink.write(' ');
+
+    return n;
+}