From 4245a36406d64c174fa3d31ba662b329d5e6bea9 Mon Sep 17 00:00:00 2001
From: n-a-c-h <>
Date: Sat, 8 Oct 2005 21:10:56 +0000
Subject: [PATCH] Greatly overhauled battery info.

---
 zsnes/src/uic.c           | 60 +++++++++++++++++++++++++++------------
 zsnes/src/win/winlink.cpp | 34 ++++++++++++++++++++--
 2 files changed, 74 insertions(+), 20 deletions(-)

diff --git a/zsnes/src/uic.c b/zsnes/src/uic.c
index a362bf10..f21f5aff 100644
--- a/zsnes/src/uic.c
+++ b/zsnes/src/uic.c
@@ -300,7 +300,7 @@ void zstart ()
 
 static char *int_to_asc(size_t number)
 {
-  static char buffer[20];
+  static char buffer[12];
   char *i;
 
   buffer[19] = '\0';
@@ -315,7 +315,7 @@ static char *int_to_asc(size_t number)
 
 char *seconds_to_asc(size_t seconds)
 {
-  static char buffer[70];
+  static char buffer[50];
   size_t hours, minutes;
 
   hours = seconds/3600;
@@ -347,7 +347,9 @@ char *seconds_to_asc(size_t seconds)
 }
 
 #ifdef __WIN32__
-int WinCheckBatteryTime();
+int CheckBattery();
+int CheckBatteryTime();
+int CheckBatteryPercent();
 #endif
 extern unsigned int MessageOn;
 extern unsigned int MsgCount;
@@ -358,25 +360,47 @@ extern char CSStatus3[70];
 void DisplayBatteryStatus()
 {
 #ifdef __WIN32__
-   int batteryTime = WinCheckBatteryTime();
+   *CSStatus2 = 0;
+   *CSStatus3 = 0;
 
-   strcpy(CSStatus2, "");
-   strcpy(CSStatus3, "");
+   switch (CheckBattery())
+   {
+     case -1: //No battery
+       strcpy(CSStatus, "No battery present");
+       break;
+       
+     case 0: //Plugged in
+       {
+         int percent = CheckBatteryPercent();
 
-   if (batteryTime > 0)
-   {
-     strcpy(CSStatus, "Battery time remaining\0");
-     strcpy(CSStatus2, seconds_to_asc(batteryTime));
-     Msgptr = CSStatus;
-     MessageOn = 100;
-   }
-   else
-   {
-     strcpy(CSStatus, "No battery present\0");
+         strcpy(CSStatus, "PC is plugged in");
+         if (percent > 0)
+         {
+           sprintf(CSStatus2, "%d%% charged", percent);
+         }
+       }
+       break;
+       
+     case 1: //Not plugged in
+       {
+         int percent = CheckBatteryPercent();
+         int battery_time = CheckBatteryTime();
+
+         strcpy(CSStatus, "PC is running off of battery");
+         if (battery_time > 0)
+         {
+           sprintf(CSStatus2, "Time remaining: %s", seconds_to_asc(battery_time));
+         }
+         if (percent > 0)
+         {
+           sprintf(CSStatus3, "%d%% remaining", percent);
+         }
+       }
+       break;
    }
 
-     Msgptr = CSStatus;
-     MessageOn = 100;
+   Msgptr = CSStatus;
+   MessageOn = 100;
 
 #endif
 }
diff --git a/zsnes/src/win/winlink.cpp b/zsnes/src/win/winlink.cpp
index c4ee4a68..86e73f92 100644
--- a/zsnes/src/win/winlink.cpp
+++ b/zsnes/src/win/winlink.cpp
@@ -3089,13 +3089,43 @@ void InitDebugger()
    }
 }
 
-signed int WinCheckBatteryTime()
+int CheckBattery()
 {
    SYSTEM_POWER_STATUS SysPowerStat;
-
    GetSystemPowerStatus(&SysPowerStat);
 
+   if (SysPowerStat.ACLineStatus == 0) //Definitly running off of battery
+   {
+     return(1); //Running off of battery
+   }
+   
+   if ((SysPowerStat.BatteryFlag == 255) || //Unknown
+       (SysPowerStat.BatteryFlag & 128)) //No battery
+   {
+      return(-1);
+   }
+
+   if ((SysPowerStat.BatteryFlag & 8) || //Charging
+       (SysPowerStat.ACLineStatus == 1)) //Plugged in
+   {
+      return(0); //Plugged in
+   }
+   
+   return(1); //Running off of battery
+}
+
+int CheckBatteryTime()
+{
+   SYSTEM_POWER_STATUS SysPowerStat;
+   GetSystemPowerStatus(&SysPowerStat);
    return SysPowerStat.BatteryLifeTime;
 }
 
+int CheckBatteryPercent()
+{
+   SYSTEM_POWER_STATUS SysPowerStat;
+   GetSystemPowerStatus(&SysPowerStat);
+   return((SysPowerStat.BatteryLifePercent == 255) ? -1 : SysPowerStat.BatteryLifePercent);
+}
+
 }