tdehwlib: Adjusted parsing of battery information

+ Added reading of estimated time to fully charged battery
  (time_to_full_now)
  The remaining time is calculated if the value is not provided
  in the battery information.
  If the battery does not provide charging current information,
  the estimated time to charge the battery cannot be calculated.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

tdecore/tdehw/tdehardwaredevices.cpp

@@ -3073,8 +3073,11 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		valuesdir.setFilter(TQDir::All);
 		TQString nodename;
 		double bdevice_capacity = 0;
+		int bdevice_time_to_empty = 0;
+		int bdevice_time_to_full = 0;
 		bool bdevice_has_energy = false;
 		bool bdevice_has_time_to_empty = false;
+		bool bdevice_has_time_to_full = false;
 		const TQFileInfoList *dirlist = valuesdir.entryInfoList();
 		if (dirlist) {
 			TQFileInfoListIterator valuesdirit(*dirlist);
@@ -3125,9 +3128,14 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 					}
 					else if (nodename == "time_to_empty_now") {
 						// Convert from minutes to seconds
-						bdevice->internalSetTimeRemaining(line.toDouble()*60);
+						bdevice_time_to_empty = line.toDouble()*60;
 						bdevice_has_time_to_empty = true;
 					}
+					else if (nodename == "time_to_full_now") {
+						// Convert from minutes to seconds
+						bdevice_time_to_full = line.toDouble()*60;
+						bdevice_has_time_to_full = true;
+					}
 					else if (nodename == "voltage_min_design") {
 						bdevice->internalSetMinimumVoltage(line.toDouble()/1000000.0);
 					}
@@ -3146,17 +3154,25 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		}
 
 		// Calculate time remaining
-		if (bdevice->dischargeRate() > 0) {
-			// Discharge/charge rate is in watt-hours
-			// Energy is in watt-hours
-			// Therefore, energy/rate = time in hours
-			// Convert to seconds...
-			if (bdevice->status() == TDEBatteryStatus::Charging) {
+		// Discharge/charge rate is in amper
+		// Energy is in amper-hours
+		// Therefore, energy/rate = time in hours
+		// Convert to seconds...
+		if (bdevice->status() == TDEBatteryStatus::Charging) {
+			if (!bdevice_has_time_to_full && bdevice->dischargeRate() > 0) {
 				bdevice->internalSetTimeRemaining(((bdevice->maximumEnergy()-bdevice->energy())/bdevice->dischargeRate())*60*60);
 			}
-			else if (!bdevice_has_time_to_empty) {
+			else {
+				bdevice->internalSetTimeRemaining(bdevice_time_to_full);
+			}
+		}
+		else {
+			if (!bdevice_has_time_to_empty && bdevice->dischargeRate() > 0) {
 				bdevice->internalSetTimeRemaining((bdevice->energy()/bdevice->dischargeRate())*60*60);
 			}
+			else {
+				bdevice->internalSetTimeRemaining(bdevice_time_to_empty);
+			}
 		}
 	}