107 lines
3.4 KiB
Java
107 lines
3.4 KiB
Java
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// uniCenta oPOS - Touch Friendly Point Of Sale
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// Copyright (c) 2009-2018 uniCenta & previous Openbravo POS works
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// https://unicenta.com
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//
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// This file is part of uniCenta oPOS
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//
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// uniCenta oPOS is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// uniCenta oPOS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with uniCenta oPOS. If not, see <http://www.gnu.org/licenses/>.
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package com.unicenta.pos.scale;
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import com.unicenta.pos.forms.AppLocal;
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import com.unicenta.pos.forms.AppProperties;
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import com.unicenta.pos.util.StringParser;
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import java.awt.Component;
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/**
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*
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* @author JG uniCenta
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*/
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public class DeviceScale {
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private Scale m_scale;
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/** Creates a new instance of DeviceScale
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* @param parent
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* @param props */
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public DeviceScale(Component parent, AppProperties props) {
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StringParser sd = new StringParser(props.getProperty("machine.scale"));
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String sScaleType = sd.nextToken(':');
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String sScaleParam1 = sd.nextToken(',');
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// String sScaleParam2 = sd.nextToken(',');
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switch (sScaleType) {
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case "acompc100":
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m_scale = new ScaleAcomPC100(sScaleParam1);
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break;
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case "averyberkel6720":
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m_scale = new ScaleAvery(sScaleParam1);
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break;
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case "casiopd1":
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m_scale = new ScaleCasioPD1(sScaleParam1);
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break;
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case "dialog1":
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m_scale = new ScaleComm(sScaleParam1);
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break;
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case "samsungesp":
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m_scale = new ScaleSamsungEsp(sScaleParam1);
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break;
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case "caspdii":
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m_scale = new ScaleCASPDII(sScaleParam1);
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break;
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case "fake":
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// a fake scale for debugging purposes
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m_scale = new ScaleFake();
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break;
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case "screen":
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// on screen scale
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m_scale = new ScaleDialog(parent);
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break;
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default:
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m_scale = null;
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break;
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}
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}
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/**
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*
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* @return
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*/
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public boolean existsScale() {
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return m_scale != null;
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}
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/**
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*
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* @return
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* @throws ScaleException
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*/
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public Double readWeight() throws ScaleException {
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if (m_scale == null) {
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throw new ScaleException(AppLocal.getIntString("scale.notdefined"));
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} else {
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Double result = m_scale.readWeight();
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if (result == null) {
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return null; // Canceled by the user / scale
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} else if (result < 0.002) {
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// invalid result. nothing on the scale
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throw new ScaleException(AppLocal.getIntString("scale.invalidvalue"));
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} else {
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// valid result
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return result;
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}
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}
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}
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}
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