package com.tutorial.graphiti.editor;

import org.eclipse.gef.palette.PaletteRoot;
import org.eclipse.graphiti.ui.editor.DiagramEditor;
import org.eclipse.graphiti.ui.internal.config.IConfigurationProvider;
import org.eclipse.graphiti.ui.internal.editor.GFPaletteRoot;

public class CalculatorEditor extends DiagramEditor{
	
	public static final String ID = "calculator_editor";
	
	protected PaletteRoot createPaletteRoot() {
		System.out.println("here  aaa");
		return new MyPaletteRoot(getConfigurationProvider());
	}
}

class MyPaletteRoot extends GFPaletteRoot{

	public MyPaletteRoot(IConfigurationProvider configurationProvider) {
		super(configurationProvider);
	}
	
	//should I override this method to add a bar on top of other compartment entries?
	//if so ,how to do it?
	public void updatePaletteEntries() {
		super.updatePaletteEntries();
	}
	
}

package com.tutorial.graphiti.editor;

import org.eclipse.graphiti.ui.editor.DiagramEditor;
import org.eclipse.graphiti.ui.internal.editor.GFPaletteRoot;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

import com.tutorial.graphiti.util.CalculatorUtil;

public class CalculatorEditor extends DiagramEditor {

	public static final String ID = "calculator_editor";

	public void createPartControl(Composite parent) {
		Composite composite = new Composite(parent, SWT.None);
		// composite.setLayoutData()
		composite.setLayout(new GridLayout());
		composite.setLayout(new GridLayout(1, false));

		Composite c1 = new Composite(composite, SWT.NONE);
		c1.setLayout(new GridLayout(1, false));
		c1.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
		createSearchText(c1);

		Composite c2 = new Composite(composite, SWT.NONE);
		c2.setLayoutData(new GridData(GridData.FILL_BOTH));
		c2.setLayout(new FillLayout());
		// composite.setLayout(new GridLayout(2, false));
		super.createPartControl(c2);
	}

	private void createHeadLabel(Composite parent) {
		Label headLabel = new Label(parent, SWT.NONE);
		headLabel.setText("No Connection");
		headLabel.setForeground(new Color(null, 0, 0, 102));
		GridDataFactory.fillDefaults().align(SWT.BEGINNING, SWT.CENTER)
				.applyTo(headLabel);
	}

	private void createSearchText(Composite parent) {
		final Text text = new Text(parent, SWT.BORDER);
		text.setText("                                      ");
		text.setTextLimit(100);
		text.addModifyListener(new ModifyListener() {
			@Override
			public void modifyText(ModifyEvent e) {
				String value = text.getText().trim();
				GFPaletteRoot pr = (GFPaletteRoot) getPaletteRoot();
				CalculatorUtil.globalMap.put(CalculatorUtil.SEARCH_PREFIX, value);
				pr.updatePaletteEntries();
			}
		});
		
		text.addFocusListener(new FocusListener() {
			@Override
			public void focusLost(FocusEvent e) {
			}
			
			@Override
			public void focusGained(FocusEvent e) {
				text.setText(text.getText().trim());
			}
		});
		GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(text);
	}

}