// Chromis POS - The New Face of Open Source POS
// Copyright (c) (c) 2015-2016
// http://www.chromis.co.uk
//
// This file is part of Chromis POS
//
// Chromis POS is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Chromis POS is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Chromis POS. If not, see <http://www.gnu.org/licenses/>.
package uk.chromis.pos.scale;
import java.awt.Component;
import uk.chromis.pos.forms.AppConfig;
import uk.chromis.pos.forms.AppLocal;
import uk.chromis.pos.forms.AppProperties;
import uk.chromis.pos.util.StringParser;
/**
*
*
*/
public class DeviceScale {
private Scale m_scale;
/**
* Creates a new instance of DeviceScale
*
* @param parent
* @param props
*/
public DeviceScale(Component parent, AppProperties props) {
StringParser sd = new StringParser(AppConfig.getInstance().getProperty("machine.scale"));
String sScaleType = sd.nextToken(':');
String sScaleParam1 = sd.nextToken(',');
// String sScaleParam2 = sd.nextToken(',');
switch (sScaleType) {
case "Adam Equipment":
m_scale = new ScaleAdam(sScaleParam1, parent);
break;
case "casiopd1":
m_scale = new ScaleCasioPD1(sScaleParam1);
break;
case "dialog1":
m_scale = new ScaleComm(sScaleParam1);
break;
case "samsungesp":
m_scale = new ScaleSamsungEsp(sScaleParam1);
break;
case "caspdii":
m_scale = new ScaleCASPDII(sScaleParam1);
break;
case "fake":
// a fake scale for debugging purposes
m_scale = new ScaleFake();
break;
case "screen":
// on screen scale
m_scale = new ScaleDialog(parent);
break;
default:
m_scale = null;
break;
}
}
/**
*
* @return
*/
public boolean existsScale() {
return m_scale != null;
}
/**
*
* @return @throws ScaleException
*/
public Double readWeight() throws ScaleException {
if (m_scale == null) {
throw new ScaleException(AppLocal.getIntString("scale.notdefined"));
} else {
Double result = m_scale.readWeight();
if (result == null) {
return null; // Canceled by the user / scale
} else if (result.doubleValue() < 0.002) {
// invalid result. nothing on the scale
throw new ScaleException(AppLocal.getIntString("scale.invalidvalue"));
} else {
// valid result
return result;
}
}
}
}