initial code repo

[stor4nfv.git] / src / ceph / src / common / TextTable.cc

diff --git a/src/ceph/src/common/TextTable.cc b/src/ceph/src/common/TextTable.cc
new file mode 100644 (file)
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+++ b/src/ceph/src/common/TextTable.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2012 Inktank Storage, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+#include "TextTable.h"
+
+using namespace std;
+
+void TextTable::define_column(const string &heading,
+                             enum TextTable::Align hd_align,
+                             enum TextTable::Align col_align)
+{
+  TextTableColumn def(heading, heading.length(), hd_align, col_align);
+  col.push_back(def);
+}
+
+void TextTable::clear() {
+  currow = curcol = 0;
+  indent = 0;
+  row.clear();
+  // reset widths to heading widths
+  for (unsigned int i = 0; i < col.size(); i++)
+    col[i].width = col[i].heading.size();
+}
+
+/**
+ * Pad s with space to appropriate alignment
+ *
+ * @param s string to pad
+ * @param width width of field to contain padded string
+ * @param align desired alignment (LEFT, CENTER, RIGHT)
+ *
+ * @return padded string
+ */
+static string
+pad(string s, int width, TextTable::Align align)
+{
+  int lpad, rpad;
+  lpad = rpad = 0;
+  switch (align) {
+    case TextTable::LEFT:
+      rpad = width - s.length();
+      break;
+    case TextTable::CENTER:
+      lpad = width / 2 - s.length() / 2;
+      rpad = width - lpad - s.length();
+      break;
+    case TextTable::RIGHT:
+      lpad = width - s.length();
+      break;
+  }
+
+  return string(lpad, ' ') + s + string(rpad, ' ');
+}
+
+std::ostream &operator<<(std::ostream &out, const TextTable &t)
+{
+  for (unsigned int i = 0; i < t.col.size(); i++) {
+    TextTable::TextTableColumn col = t.col[i];
+    out << string(t.indent, ' ')
+        << pad(col.heading, col.width, col.hd_align)
+       << ' ';
+  }
+  out << endl;
+
+  for (unsigned int i = 0; i < t.row.size(); i++) {
+    for (unsigned int j = 0; j < t.row[i].size(); j++) {
+      TextTable::TextTableColumn col = t.col[j];
+      out << string(t.indent, ' ')
+         << pad(t.row[i][j], col.width, col.col_align)
+         << ' ';
+    }
+    out << endl;
+  }
+  return out;
+}