de.codesourcery.eve.skills.ui.components.impl.TotalItemVolumeComponent.java Source code

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Here is the source code for de.codesourcery.eve.skills.ui.components.impl.TotalItemVolumeComponent.java

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/**
 * Copyright 2004-2009 Tobias Gierke <tobias.gierke@code-sourcery.de>
 *
 * 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 de.codesourcery.eve.skills.ui.components.impl;

import java.awt.GridBagLayout;
import java.text.DecimalFormat;
import java.util.Collection;

import javax.swing.BorderFactory;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.apache.commons.lang.StringUtils;

import de.codesourcery.eve.skills.ui.components.AbstractComponent;
import de.codesourcery.eve.skills.ui.utils.ResizingTextField;

public class TotalItemVolumeComponent<X> extends AbstractComponent {
    private final String title;

    private final ResizingTextField textField = new ResizingTextField();

    private final IDataProvider<X> dataProvider;

    public interface IDataProvider<X> {
        public double getVolumePerUnit(X obj);

        public int getQuantity(X obj);
    }

    public TotalItemVolumeComponent(String title, IDataProvider<X> dataProvider) {

        if (StringUtils.isBlank(title)) {
            throw new IllegalArgumentException("title cannot be blank.");
        }

        if (dataProvider == null) {
            throw new IllegalArgumentException("dataProvider cannot be NULL");
        }

        this.title = title;
        this.dataProvider = dataProvider;
    }

    public TotalItemVolumeComponent(IDataProvider<X> dataProvider) {
        this("Selected volume", dataProvider);
    }

    @Override
    protected JPanel createPanel() {
        textField.setColumns(10);
        textField.setEditable(false);
        textField.setHorizontalAlignment(JTextField.TRAILING);

        JPanel textFieldPanel = new JPanel();
        textField.setLayout(new GridBagLayout());
        textFieldPanel.setBorder(BorderFactory.createTitledBorder(title));
        textFieldPanel.add(textField,
                constraints(0, 0).weightX(0.5).weightY(0.5).resizeHorizontally().useRelativeWidth().end());

        setVolumeLabel(0.0d);

        return textFieldPanel;
    }

    public void setItems(Collection<X> items) {
        double volume = 0.0;
        for (X item : items) {
            final double quantity = this.dataProvider.getQuantity(item);

            final double volPerUnit = this.dataProvider.getVolumePerUnit(item);

            volume += (quantity * volPerUnit);
        }
        final double vol = volume;
        setVolumeLabel(vol);
    }

    private void setVolumeLabel(final double vol) {
        runOnEventThread(new Runnable() {

            @Override
            public void run() {
                final DecimalFormat FORMAT = new DecimalFormat("###,###,###,###,##0.0##");
                textField.setText(FORMAT.format(vol) + " m3");
            }
        });
    }
}