com.intellij.openapi.ui.SelectFromListDialog.java Source code

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Here is the source code for com.intellij.openapi.ui.SelectFromListDialog.java

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/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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 com.intellij.openapi.ui;

import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.ui.ScrollPaneFactory;
import com.intellij.ui.SimpleListCellRenderer;
import com.intellij.ui.components.JBList;
import org.intellij.lang.annotations.JdkConstants;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;

public class SelectFromListDialog extends DialogWrapper {
    private static final Logger LOG = Logger.getInstance(SelectFromListDialog.class);

    private final ToStringAspect myToStringAspect;
    private final DefaultListModel<Object> myModel = new DefaultListModel<>();
    private final JList<Object> myList = new JBList<>(myModel);
    private final JPanel myMainPanel = new JPanel(new BorderLayout());

    public SelectFromListDialog(Project project, Object[] objects, ToStringAspect toStringAspect, String title,
            @JdkConstants.ListSelectionMode int selectionMode) {
        super(project, true);
        myToStringAspect = toStringAspect;
        myList.setSelectionMode(selectionMode);
        setTitle(title);

        for (Object object : objects) {
            myModel.addElement(object);
        }

        myList.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent e) {
                setOKActionEnabled(myList.getSelectedValues().length > 0);
            }
        });

        myList.setSelectedIndex(0);

        myList.setCellRenderer(SimpleListCellRenderer.create("", myToStringAspect::getToStirng));

        init();
    }

    @Override
    protected JComponent createCenterPanel() {
        myMainPanel.add(ScrollPaneFactory.createScrollPane(myList), BorderLayout.CENTER);
        return myMainPanel;
    }

    public void addToDialog(JComponent userComponent, @NotNull String borderLayoutConstraints) {
        LOG.assertTrue(!borderLayoutConstraints.equals(BorderLayout.CENTER), "Can't add any component to center");
        myMainPanel.add(userComponent, borderLayoutConstraints);
    }

    public void setSelection(final String defaultLocation) {
        final int index = myModel.indexOf(defaultLocation);
        if (index >= 0) {
            myList.getSelectionModel().setSelectionInterval(index, index);
        }
    }

    public interface ToStringAspect {
        String getToStirng(Object obj);
    }

    public Object[] getSelection() {
        if (!isOK())
            return null;
        return myList.getSelectedValues();
    }

    @Override
    public JComponent getPreferredFocusedComponent() {
        return myList;
    }
}