SWTFactory.java

package org.rubypeople.rdt.debug.ui;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;

public class SWTFactory {

	/**
	 * Creates a Group widget
	 * 
	 * @param parent
	 *            the parent composite to add this group to
	 * @param text
	 *            the text for the heading of the group
	 * @param columns
	 *            the number of columns within the group
	 * @param hspan
	 *            the horizontal span the group should take up on the parent
	 * @param fill
	 *            the style for how this composite should fill into its parent
	 * @return the new group
	 * @since 3.2
	 * 
	 */
	public static Group createGroup(Composite parent, String text, int columns,
			int hspan, int fill) {
		Group g = new Group(parent, SWT.NONE);
		g.setLayout(new GridLayout(columns, false));
		g.setText(text);
		g.setFont(parent.getFont());
		GridData gd = new GridData(fill);
		gd.horizontalSpan = hspan;
		g.setLayoutData(gd);
		return g;
	}

	/**
	 * This method is used to make a combo box
	 * 
	 * @param parent
	 *            the parent composite to add the new combo to
	 * @param style
	 *            the style for the Combo
	 * @param hspan
	 *            the horizontal span to take up on the parent composite
	 * @param fill
	 *            how the combo will fill into the composite Can be one of
	 *            <code>GridData.FILL_HORIZONAL</code>,
	 *            <code>GridData.FILL_BOTH</code> or
	 *            <code>GridData.FILL_VERTICAL</code>
	 * @param items
	 *            the item to put into the combo
	 * @return a new Combo instance
	 * @since 3.3
	 */
	public static Combo createCombo(Composite parent, int style, int hspan,
			int fill, String[] items) {
		Combo c = new Combo(parent, style);
		c.setFont(parent.getFont());
		GridData gd = new GridData(fill);
		gd.horizontalSpan = hspan;
		c.setLayoutData(gd);
		if (items != null) {
			c.setItems(items);
		}
		c.select(0);
		return c;
	}

	/**
	 * Creates a Composite widget
	 * 
	 * @param parent
	 *            the parent composite to add this composite to
	 * @param font
	 *            the font to set on the control
	 * @param columns
	 *            the number of columns within the composite
	 * @param hspan
	 *            the horizontal span the composite should take up on the parent
	 * @param fill
	 *            the style for how this composite should fill into its parent
	 * @return the new group
	 * @since 3.3
	 */
	public static Composite createComposite(Composite parent, Font font,
			int columns, int hspan, int fill) {
		Composite g = new Composite(parent, SWT.NONE);
		g.setLayout(new GridLayout(columns, false));
		g.setFont(font);
		GridData gd = new GridData(fill);
		gd.horizontalSpan = hspan;
		g.setLayoutData(gd);
		return g;
	}

}