com.amazonaws.eclipse.ec2.ui.views.instances.columns.ConfigureColumnsDialog.java Source code

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Here is the source code for com.amazonaws.eclipse.ec2.ui.views.instances.columns.ConfigureColumnsDialog.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.amazonaws.eclipse.ec2.ui.views.instances.columns;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

import com.amazonaws.eclipse.ec2.ui.views.instances.columns.BuiltinColumn.ColumnType;

public class ConfigureColumnsDialog extends Dialog {
    private String tagColumnStr;
    private Map<BuiltinColumn.ColumnType, Boolean> builtinColumns = new HashMap<BuiltinColumn.ColumnType, Boolean>();
    private List<TableColumn> columns;

    public ConfigureColumnsDialog(Shell parentShell) {
        super(parentShell);
    }

    protected boolean isResizable() {
        return true;
    }

    private void initializeTagText(Text tagColumnText) {
        tagColumnText.setText("");
        for (TableColumn c : columns) {
            if (c instanceof TagColumn) {
                String t = tagColumnText.getText();
                String tagName = ((TagColumn) c).getTagName();
                if (t.isEmpty())
                    tagColumnText.setText(tagName);
                else
                    tagColumnText.setText(tagColumnText.getText() + "," + tagName);
            }
        }
        tagColumnStr = tagColumnText.getText();
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        composite.setLayout(new GridLayout(1, false));

        new Label(composite, SWT.NONE).setText("Tag columns (comma-separated)");
        Text tagColumnText = new Text(composite, SWT.BORDER);
        tagColumnText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
        tagColumnText.addListener(SWT.CHANGED, new Listener() {
            public void handleEvent(Event event) {
                tagColumnStr = ((Text) event.widget).getText();
            }
        });
        initializeTagText(tagColumnText);

        Group builtins = new Group(composite, SWT.NONE);
        builtins.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        builtins.setLayout(new GridLayout(1, true));
        builtins.setText("Built-in columns");
        for (BuiltinColumn.ColumnType t : BuiltinColumn.ColumnType.values()) {
            Button ck = new Button(builtins, SWT.CHECK);
            ck.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
            ck.setText(t.getName());
            initializeCheckbox(ck, t);
            ck.addSelectionListener(new SelectionListener() {
                public void widgetSelected(SelectionEvent e) {
                    Button changedCk = (Button) e.widget;
                    builtinColumns.put(BuiltinColumn.ColumnType.fromName(changedCk.getText()),
                            changedCk.getSelection());
                }

                public void widgetDefaultSelected(SelectionEvent e) {
                    widgetSelected(e);
                }
            });
        }
        return composite;
    }

    private void initializeCheckbox(Button ck, ColumnType t) {
        for (TableColumn c : columns) {
            if (c instanceof BuiltinColumn && t == ColumnType.fromName(c.getColumnName()))
                ck.setSelection(true);
        }
    }

    public String getTagColumnText() {
        return tagColumnStr == null ? "" : tagColumnStr;
    }

    // overriding this methods allows you to set the
    // title of the custom dialog
    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Configure columns");
    }

    public Map<BuiltinColumn.ColumnType, Boolean> getBuiltinColumns() {
        return builtinColumns;
    }

    public void initialize(List<TableColumn> columns) {
        this.columns = columns;
        for (TableColumn c : columns) {
            if (c instanceof BuiltinColumn)
                builtinColumns.put(((BuiltinColumn) c).getColumnType(), true);
        }
    }

}