// $Header: /home/cvs/jakarta-jmeter/src/components/org/apache/jmeter/control/gui/ThroughputControllerGui.java,v 1.10 2004/03/05 01:32:37 sebb Exp $
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

package org.apache.jmeter.control.gui;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.apache.jmeter.control.ThroughputController;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.gui.layout.VerticalLayout;

/**
 * @version   $Revision: 1.10 $ on $Date: 2004/03/05 01:32:37 $
 */
public class ThroughputControllerGui extends AbstractControllerGui
{
    private JComboBox styleBox;
    private int style;
    private JTextField throughput;
    private JCheckBox perthread;
    private boolean isPerThread = true;

    private String BYNUMBER_LABEL =
        JMeterUtils.getResString("throughput_control_bynumber_label");
    private String BYPERCENT_LABEL =
        JMeterUtils.getResString("throughput_control_bypercent_label");
    private String THROUGHPUT_LABEL =
        JMeterUtils.getResString("throughput_control_tplabel");
    private String THROUGHPUT = "Througput Field";
    private String PERTHREAD_LABEL =
        JMeterUtils.getResString("throughput_control_perthread_label");

    public ThroughputControllerGui()
    {
        init();
    }

    public TestElement createTestElement()
    {
        ThroughputController tc = new ThroughputController();
        modifyTestElement(tc);
        return tc;
    }

    /**
     * Modifies a given TestElement to mirror the data in the gui components.
     * @see org.apache.jmeter.gui.JMeterGUIComponent#modifyTestElement(TestElement)
     */
    public void modifyTestElement(TestElement tc)
    {
        configureTestElement(tc);
        ((ThroughputController) tc).setStyle(style);
        ((ThroughputController) tc).setPerThread(isPerThread);
        if (style == ThroughputController.BYNUMBER)
        {
            try
            {
                ((ThroughputController) tc).setMaxThroughput(
                    Integer.parseInt(throughput.getText().trim()));
            }
            catch (NumberFormatException e)
            {
                ((ThroughputController) tc).setMaxThroughput(
                    throughput.getText());
            }
        }
        else
        {
            try
            {
                ((ThroughputController) tc).setPercentThroughput(
                    Float.parseFloat(throughput.getText().trim()));
            }
            catch (NumberFormatException e)
            {
                ((ThroughputController) tc).setPercentThroughput(
                    throughput.getText());
            }
        }
    }

    public void configure(TestElement el)
    {
        super.configure(el);
        if (((ThroughputController) el).getStyle()
            == ThroughputController.BYNUMBER)
        {
            styleBox.getModel().setSelectedItem(BYNUMBER_LABEL);
            throughput.setText(
                String.valueOf(((ThroughputController) el).getMaxThroughput()));
        }
        else
        {
            styleBox.setSelectedItem(BYPERCENT_LABEL);
            throughput.setText(
                String.valueOf(
                    ((ThroughputController) el).getPercentThroughput()));
        }
        perthread.setSelected(((ThroughputController) el).isPerThread());
    }

    public String getLabelResource()
    {
        return "throughput_control_title";
    }

    private void init()
    {
        setLayout(
            new VerticalLayout(5, VerticalLayout.LEFT, VerticalLayout.TOP));
        setBorder(makeBorder());
        add(makeTitlePanel());

        DefaultComboBoxModel styleModel = new DefaultComboBoxModel();
        styleModel.addElement(BYNUMBER_LABEL);
        styleModel.addElement(BYPERCENT_LABEL);
        styleBox = new JComboBox(styleModel);
        styleBox.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                if (((String) styleBox.getSelectedItem())
                    .equals(BYNUMBER_LABEL))
                {
                    style = ThroughputController.BYNUMBER;
                }
                else
                {
                    style = ThroughputController.BYPERCENT;
                }
            }
        });
        add(styleBox);

        // TYPE FIELD
        JPanel tpPanel = new JPanel();
        JLabel tpLabel = new JLabel(THROUGHPUT_LABEL);
        tpPanel.add(tpLabel);

        // TEXT FIELD
        throughput = new JTextField(5);
        tpPanel.add(throughput);
        throughput.setName(THROUGHPUT);
        throughput.setText("1");
        // throughput.addActionListener(this);
        tpPanel.add(throughput);
        add(tpPanel);

        // PERTHREAD FIELD
        perthread = new JCheckBox(PERTHREAD_LABEL, isPerThread);
        perthread.addItemListener(new ItemListener()
        {
            public void itemStateChanged(ItemEvent event)
            {
                if (event.getStateChange() == ItemEvent.SELECTED)
                {
                    isPerThread = true;
                }
                else
                {
                    isPerThread = false;
                }
            }
        });
        add(perthread);
    }
}