Index: ui/base/text/bytes_formatting.h |
diff --git a/ui/base/text/bytes_formatting.h b/ui/base/text/bytes_formatting.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..66f403e78dd9359969fa10c8ae437dd467e5b9e1 |
--- /dev/null |
+++ b/ui/base/text/bytes_formatting.h |
@@ -0,0 +1,44 @@ |
+// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef UI_BASE_TEXT_BYTES_FORMATTING_H_ |
+#define UI_BASE_TEXT_BYTES_FORMATTING_H_ |
+#pragma once |
+ |
+#include "base/basictypes.h" |
+#include "base/string16.h" |
+ |
+namespace ui { |
+ |
+enum DataUnits { |
+ DATA_UNITS_NATURAL = -1, |
+ DATA_UNITS_BYTE = 0, |
+ DATA_UNITS_KIBIBYTE, |
+ DATA_UNITS_MEBIBYTE, |
+ DATA_UNITS_GIBIBYTE, |
+ DATA_UNITS_TEBIBYTE, |
+ DATA_UNITS_PEBIBYTE |
+}; |
+ |
+// Return the unit type that is appropriate for displaying the amount of bytes |
+// passed in. Most of the time, an explicit call to this isn't necessary; just |
+// use the DATA_UNITS_NATURAL argument to FormatBytes()/FormatSpeed(). |
+DataUnits GetByteDisplayUnits(int64 bytes); |
+ |
+// Return a byte string in human-readable format with an optional unit suffix. |
+// Specify a |units| argument to explictly request the units to be used, or pass |
+// in DATA_UNITS_NATURAL to have the units to match the scale of the |bytes| |
+// argument (the value that GetBytesDisplayUnits() would return). |
+// Ex: FormatBytes(512, DATA_UNITS_KIBIBYTE, true) => "0.5 kB" |
+// Ex: FormatBytes(10*1024, DATA_UNITS_MEBIBYTE, false) => "0.1" |
+string16 FormatBytes(int64 bytes, DataUnits units, bool show_units); |
+ |
+// As above, but with "/s" units. |
+// Ex: FormatSpeed(512, DATA_UNITS_KIBIBYTE, true) => "0.5 kB/s" |
+// Ex: FormatSpeed(10*1024, DATA_UNITS_MEBIBYTE, false) => "0.1" |
+string16 FormatSpeed(int64 bytes, DataUnits units, bool show_units); |
+ |
+} // namespace ui |
+ |
+#endif // UI_BASE_TEXT_BYTES_FORMATTING_H_ |