com.intellij.application.options.SchemesToImportPopup.java Source code

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Here is the source code for com.intellij.application.options.SchemesToImportPopup.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.application.options;

import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.ui.popup.PopupChooserBuilder;
import com.intellij.ui.CollectionListModel;
import com.intellij.ui.components.JBList;
import com.intellij.util.ui.UIUtil;
import org.consulo.util.pointers.Named;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import java.awt.*;
import java.util.Collection;

public abstract class SchemesToImportPopup<T> {
    private final Component myParent;

    public SchemesToImportPopup(final Component parent) {
        myParent = parent;
    }

    public void show(Collection<T> schemes) {
        if (schemes.isEmpty()) {
            Messages.showMessageDialog("There are no available schemes to import", "Import",
                    Messages.getWarningIcon());
            return;
        }

        final JList list = new JBList(new CollectionListModel<T>(schemes));
        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        list.setCellRenderer(new SchemesToImportListCellRenderer());

        Runnable selectAction = new Runnable() {
            @Override
            public void run() {
                onSchemeSelected((T) list.getSelectedValue());
            }
        };

        showList(list, selectAction);
    }

    private void showList(JList list, Runnable selectAction) {
        new PopupChooserBuilder(list).setTitle("Import Scheme").setItemChoosenCallback(selectAction).createPopup()
                .showInCenterOf(myParent);
    }

    private static class SchemesToImportListCellRenderer implements ListCellRenderer {
        private final JPanel myPanel = new JPanel(new BorderLayout());
        private final JLabel myNameLabel = new JLabel("", SwingConstants.LEFT);

        public SchemesToImportListCellRenderer() {
            myPanel.add(myNameLabel, BorderLayout.CENTER);
        }

        @Override
        public Component getListCellRendererComponent(@NotNull JList list, Object val, int i, boolean isSelected,
                boolean cellHasFocus) {
            Named c = (Named) val;
            myNameLabel.setText(c.getName());

            updateColors(isSelected);
            return myPanel;
        }

        private void updateColors(boolean isSelected) {
            Color bg = isSelected ? UIUtil.getTableSelectionBackground() : UIUtil.getTableBackground();
            Color fg = isSelected ? UIUtil.getTableSelectionForeground() : UIUtil.getTableForeground();

            setColors(bg, fg, myPanel, myNameLabel);
        }

        private static void setColors(Color bg, Color fg, JComponent... cc) {
            for (JComponent c : cc) {
                c.setBackground(bg);
                c.setForeground(fg);
            }
        }
    }

    abstract protected void onSchemeSelected(T scheme);
}