tdehwlib: Unify units of battery values.

The values from energy_* and power_now are converted
from mWh and mW to Ah and A, so that the units are
equal to values from charge_* and current_now.

This resolves issue #68.

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

tdecore/tdehw/tdehardwaredevices.cpp

@@ -3073,6 +3073,7 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		valuesdir.setFilter(TQDir::All);
 		TQString nodename;
 		double bdevice_capacity = 0;
+		double bdevice_voltage = 0;
 		int bdevice_time_to_empty = 0;
 		int bdevice_time_to_full = 0;
 		bool bdevice_has_energy = false;
@@ -3082,9 +3083,20 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		if (dirlist) {
 			TQFileInfoListIterator valuesdirit(*dirlist);
 			TQFileInfo *dirfi;
+			// Get the voltage as first...
+			TQFile file( valuesnodename + "voltage_now" );
+			if ( file.open( IO_ReadOnly ) ) {
+				TQTextStream stream( &file );
+				TQString line;
+				line = stream.readLine();
+				bdevice_voltage = line.toDouble()/1000000.0;
+				bdevice->internalSetVoltage(bdevice_voltage);
+				file.close();
+			}
+			// ...and then the other values
 			while ( (dirfi = valuesdirit.current()) != 0 ) {
 				nodename = dirfi->fileName();
-				TQFile file( valuesnodename + nodename );
+				file.setName( valuesnodename + nodename );
 				if ( file.open( IO_ReadOnly ) ) {
 					TQTextStream stream( &file );
 					TQString line;
@@ -3095,25 +3107,50 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 					else if (nodename == "capacity") {
 						bdevice_capacity = line.toDouble();
 					}
-					else if (nodename == "charge_full" || nodename == "energy_full") {
+					else if (nodename == "charge_full") {
 						bdevice->internalSetMaximumEnergy(line.toDouble()/1000000.0);
 					}
-					else if (nodename == "charge_full_design" || nodename == "energy_full_design") {
+					else if (nodename == "energy_full") {
+						if (bdevice_voltage > 0) {
+							// Convert from mWh do Ah
+							bdevice->internalSetMaximumEnergy(line.toDouble()/1000000.0/bdevice_voltage);
+						}
+					}
+					else if (nodename == "charge_full_design") {
 						bdevice->internalSetMaximumDesignEnergy(line.toDouble()/1000000.0);
 					}
-					else if (nodename == "charge_now" || nodename == "energy_now") {
+					else if (nodename == "energy_full_design") {
+						if (bdevice_voltage > 0) {
+							// Convert from mWh do Ah
+							bdevice->internalSetMaximumDesignEnergy(line.toDouble()/1000000.0/bdevice_voltage);
+						}
+					}
+					else if (nodename == "charge_now") {
 						bdevice->internalSetEnergy(line.toDouble()/1000000.0);
 						bdevice_has_energy = true;
 					}
+					else if (nodename == "energy_now") {
+						if (bdevice_voltage > 0) {
+							// Convert from mWh do Ah
+							bdevice->internalSetEnergy(line.toDouble()/1000000.0/bdevice_voltage);
+							bdevice_has_energy = true;
+						}
+					}
 					else if (nodename == "manufacturer") {
 						bdevice->internalSetVendorName(line.stripWhiteSpace());
 					}
 					else if (nodename == "model_name") {
 						bdevice->internalSetVendorModel(line.stripWhiteSpace());
 					}
-					else if (nodename == "power_now" || nodename == "current_now") {
+					else if (nodename == "current_now") {
 						bdevice->internalSetDischargeRate(line.toDouble()/1000000.0);
 					}
+					else if (nodename == "power_now") {
+						if (bdevice_voltage > 0) {
+							// Convert from mW do A
+							bdevice->internalSetDischargeRate(line.toDouble()/1000000.0/bdevice_voltage);
+						}
+					}
 					else if (nodename == "present") {
 						bdevice->internalSetInstalled(line.toInt());
 					}
@@ -3139,9 +3176,6 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 					else if (nodename == "voltage_min_design") {
 						bdevice->internalSetMinimumVoltage(line.toDouble()/1000000.0);
 					}
-					else if (nodename == "voltage_now") {
-						bdevice->internalSetVoltage(line.toDouble()/1000000.0);
-					}
 					file.close();
 				}
 				++valuesdirit;