tools/etfw/org.eclipse.ptp.etfw/src/org/eclipse/ptp/etfw/ui/AbstractToolConfigurationTab.java

package org.eclipse.ptp.etfw.ui;

import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;

public abstract class AbstractToolConfigurationTab extends AbstractLaunchConfigurationTab {
	public String getName() {
		return null;
	}
	
	/**
	 * Produces a new GridLayout based on provided arguments
	 * @param columns
	 * @param isEqual
	 * @param mh
	 * @param mw
	 * @return
	 */
	protected static GridLayout createGridLayout(int columns, boolean isEqual, int mh,
			int mw) {
		GridLayout gridLayout = new GridLayout();
		gridLayout.numColumns = columns;
		gridLayout.makeColumnsEqualWidth = isEqual;
		gridLayout.marginHeight = mh;
		gridLayout.marginWidth = mw;
		return gridLayout;
	}

	/**
	 * Creates a new GridData based on provided style and space arguments
	 * @param style
	 * @param space
	 * @return
	 */
	protected static GridData spanGridData(int style, int space) {
		GridData gd = null;
		if (style == -1) {
			gd = new GridData();
		} else {
			gd = new GridData(style);
		}
		gd.horizontalSpan = space;
		return gd;
	}

	/**
	 * Treats empty strings as null
	 * @param text
	 * @return Contents of text, or null if text is the empty string
	 */
	protected String getFieldContent(String text) {
		if ((text.trim().length() == 0) || text.equals("")) {
			return null;
		}

		return text;
	}
}