From bb3e773c4958e76005915e3fd0c4b3a3c51ed941 Mon Sep 17 00:00:00 2001
From: Hisham Muhammad <hisham@gobolinux.org>
Date: Thu, 8 Sep 2011 04:41:03 +0000
Subject: [PATCH] Interface improvements for large numbers.

---
 SwapMeter.c | 21 ++++++++++++++++++---
 SwapMeter.h |  5 +++++
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/SwapMeter.c b/SwapMeter.c
index ed21292a..403b0576 100644
--- a/SwapMeter.c
+++ b/SwapMeter.c
@@ -19,25 +19,40 @@ in the source distribution for its full text.
 #include "debug.h"
 #include <assert.h>
 
+#define KILOBYTE 1
+#define MEGABYTE 1024
+#define GIGABYTE 1048576
+
 int SwapMeter_attributes[] = {
    SWAP
 };
 
+/* NOTE: Value is in kilobytes */
+static void SwapMeter_humanNumber(char* buffer, const long int* value) {
+   if (*value >= 10*GIGABYTE)
+      sprintf(buffer, "%ldG ", *value / GIGABYTE);
+   else if (*value >= 10*MEGABYTE)
+      sprintf(buffer, "%ldM ", *value / MEGABYTE);
+   else
+      sprintf(buffer, "%ldK ", *value);
+}
+
 static void SwapMeter_setValues(Meter* this, char* buffer, int len) {
    long int usedSwap = this->pl->usedSwap;
    this->total = this->pl->totalSwap;
    this->values[0] = usedSwap;
-   snprintf(buffer, len, "%ld/%ldMB", (long int) usedSwap / 1024, (long int) this->total / 1024);
+   snprintf(buffer, len, "%ld/%ldMB", (long int) usedSwap / MEGABYTE, (long int) this->total / MEGABYTE);
 }
 
 static void SwapMeter_display(Object* cast, RichString* out) {
    char buffer[50];
    Meter* this = (Meter*)cast;
    long int swap = (long int) this->values[0];
+   long int total = (long int) this->total;
    RichString_write(out, CRT_colors[METER_TEXT], ":");
-   sprintf(buffer, "%ldM ", (long int) this->total / 1024);
+   SwapMeter_humanNumber(buffer, &total);
    RichString_append(out, CRT_colors[METER_VALUE], buffer);
-   sprintf(buffer, "%ldk", swap);
+   SwapMeter_humanNumber(buffer, &swap);
    RichString_append(out, CRT_colors[METER_TEXT], "used:");
    RichString_append(out, CRT_colors[METER_VALUE], buffer);
 }
diff --git a/SwapMeter.h b/SwapMeter.h
index f243a5bd..6bdd130b 100644
--- a/SwapMeter.h
+++ b/SwapMeter.h
@@ -22,8 +22,13 @@ in the source distribution for its full text.
 #include "debug.h"
 #include <assert.h>
 
+#define KILOBYTE 1
+#define MEGABYTE 1024
+#define GIGABYTE 1048576
+
 extern int SwapMeter_attributes[];
 
+/* NOTE: Value is in kilobytes */
 extern MeterType SwapMeter;
 
 #endif