org.pentaho.di.ui.trans.steps.elasticsearchbulk.LabelTimeComposite.java Source code

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Here is the source code for org.pentaho.di.ui.trans.steps.elasticsearchbulk.LabelTimeComposite.java

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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * 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.pentaho.di.ui.trans.steps.elasticsearchbulk;

import java.util.ArrayList;
import java.util.concurrent.TimeUnit;

import org.apache.commons.lang.StringUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.ui.core.PropsUI;

/**
 * Label, numeric text input and drop down time unit selector
 *
 */
public class LabelTimeComposite extends Composite {
    private static final PropsUI props = PropsUI.getInstance();

    private Label wLabel;
    private Text wText;
    private CCombo wTimeUnit;

    private String lastValidValue = "";

    public LabelTimeComposite(Composite composite, String labelText, String toolTipText) {
        super(composite, SWT.NONE);
        props.setLook(this);

        int middle = props.getMiddlePct();
        int threeQuarters = (middle + 100) / 2;
        int margin = Const.MARGIN;

        FormLayout formLayout = new FormLayout();
        formLayout.marginWidth = 0;
        formLayout.marginHeight = 0;
        formLayout.marginTop = 0;
        formLayout.marginBottom = 0;

        this.setLayout(formLayout);

        wText = new Text(this, SWT.SINGLE | SWT.LEFT | SWT.BORDER);
        FormData fdText = new FormData();
        fdText.left = new FormAttachment(middle, margin);
        fdText.right = new FormAttachment(threeQuarters, 0);
        wText.setLayoutData(fdText);
        wText.setToolTipText(toolTipText);

        wTimeUnit = new CCombo(this, SWT.SINGLE | SWT.DROP_DOWN | SWT.BORDER | SWT.LEFT);
        FormData fdCombo = new FormData();
        fdCombo.left = new FormAttachment(threeQuarters, margin);
        fdCombo.right = new FormAttachment(100, 0);
        wTimeUnit.setEditable(false);
        wTimeUnit.setLayoutData(fdCombo);
        wTimeUnit.setItems(getTimeUnits());
        wTimeUnit.setToolTipText(toolTipText);

        wLabel = new Label(this, SWT.RIGHT);
        props.setLook(wLabel);
        wLabel.setText(labelText);
        FormData fdLabel = new FormData();
        fdLabel.left = new FormAttachment(0, 0);
        fdLabel.right = new FormAttachment(middle, 0);
        fdLabel.top = new FormAttachment(wText, 0, SWT.CENTER);
        wLabel.setLayoutData(fdLabel);
        wLabel.setToolTipText(toolTipText);

        wText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                if (!StringUtils.isNumeric(wText.getText())) {
                    wText.setText(lastValidValue);
                } else {
                    lastValidValue = wText.getText();
                }
            }
        });
    }

    private String[] getTimeUnits() {
        ArrayList<String> timeUnits = new ArrayList<String>();
        for (TimeUnit timeUnit : TimeUnit.values()) {
            timeUnits.add(timeUnit.toString());
        }
        return timeUnits.toArray(new String[timeUnits.size()]);
    }

    public TimeUnit getTimeUnit() {
        return TimeUnit.valueOf(wTimeUnit.getItem(wTimeUnit.getSelectionIndex()));
    }

    public void setTimeUnit(TimeUnit tu) {
        for (int i = 0; i < wTimeUnit.getItemCount(); i++) {
            if (tu.toString().equals(wTimeUnit.getItem(i))) {
                wTimeUnit.select(i);
                break;
            }
        }
    }

    public void addModifyListener(ModifyListener lsMod) {
        wText.addModifyListener(lsMod);
    }

    public void addSelectionListener(SelectionAdapter lsDef) {
        wText.addSelectionListener(lsDef);
    }

    public void setText(String name) {
        wText.setText(name);
    }

    public String getText() {
        return wText.getText();
    }

    public void setEchoChar(char c) {
        wText.setEchoChar(c);
    }

    public void setEnabled(boolean flag) {
        wText.setEnabled(flag);
        wLabel.setEnabled(flag);
    }

    public boolean setFocus() {
        return wText.setFocus();
    }

    public void addTraverseListener(TraverseListener tl) {
        wText.addTraverseListener(tl);
    }

    public Text getTextWidget() {
        return wText;
    }

    public Label getLabelWidget() {
        return wLabel;
    }
}