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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with JasperReports. If not, see .
 */
package net.sf.jasperreports.engine;

import net.sf.jasperreports.engine.type.EvaluationTimeEnum;
import net.sf.jasperreports.engine.util.DefaultFormatFactory;

//import java.text.Format;


/**
 * An abstract representation of a report static text. It provides functionality for static texts.
 * @author Teodor Danciu ([email protected])
 * @version $Id: JRTextField.java 4004 2010-10-25 06:49:40Z teodord $
 */
public interface JRTextField extends JRTextElement, JRAnchor, JRHyperlink
{

	/**
	 * Used in the date pattern to specify the default style.
	 * @see java.text.DateFormat#DEFAULT
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_DEFAULT DefaultFormatFactory.STANDARD_DATE_FORMAT_DEFAULT}
	 */
	public static final String STANDARD_DATE_FORMAT_DEFAULT = DefaultFormatFactory.STANDARD_DATE_FORMAT_DEFAULT;

	/**
	 * Used in the date pattern to specify the short style.
	 * @see java.text.DateFormat#SHORT
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_SHORT DefaultFormatFactory.STANDARD_DATE_FORMAT_SHORT}
	 */
	public static final String STANDARD_DATE_FORMAT_SHORT = DefaultFormatFactory.STANDARD_DATE_FORMAT_SHORT;

	/**
	 * Used in the date pattern to specify the medium style.
	 * @see java.text.DateFormat#MEDIUM
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_MEDIUM DefaultFormatFactory.STANDARD_DATE_FORMAT_MEDIUM}
	 */
	public static final String STANDARD_DATE_FORMAT_MEDIUM = DefaultFormatFactory.STANDARD_DATE_FORMAT_MEDIUM;

	/**
	 * Used in the date pattern to specify the long style.
	 * @see java.text.DateFormat#LONG
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_LONG DefaultFormatFactory.STANDARD_DATE_FORMAT_LONG}
	 */
	public static final String STANDARD_DATE_FORMAT_LONG = DefaultFormatFactory.STANDARD_DATE_FORMAT_LONG;

	/**
	 * Used in the date pattern to specify the full style.
	 * @see java.text.DateFormat#FULL
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_FULL DefaultFormatFactory.STANDARD_DATE_FORMAT_FULL}
	 */
	public static final String STANDARD_DATE_FORMAT_FULL = DefaultFormatFactory.STANDARD_DATE_FORMAT_FULL;

	/**
	 * Used in the date pattern to specify that the date or time should not be included.
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_HIDE DefaultFormatFactory.STANDARD_DATE_FORMAT_HIDE}
	 */
	public static final String STANDARD_DATE_FORMAT_HIDE = DefaultFormatFactory.STANDARD_DATE_FORMAT_HIDE;

	/**
	 * Used in the date format pattern to separate the date and time styles.
	 * @deprecated replaced by {@link DefaultFormatFactory#STANDARD_DATE_FORMAT_SEPARATOR DefaultFormatFactory.STANDARD_DATE_FORMAT_SEPARATOR}
	 */
	public static final String STANDARD_DATE_FORMAT_SEPARATOR = DefaultFormatFactory.STANDARD_DATE_FORMAT_SEPARATOR;

	
	/**
	 * Specifies whether the text field will stretch vertically if its text does not fit in one line.
	 * @return true if the text field will stretch vertically, false otherwise
	 */
	public boolean isStretchWithOverflow();

	/**
	 * Set to true if the text field should stretch vertically if its text does not fit in one line.
	 */
	public void setStretchWithOverflow(boolean isStretchWithOverflow);
		
	/**
	 * @deprecated Replaced by {@link #getEvaluationTimeValue()}.
	 */
	public byte getEvaluationTime();
	
	/**
	 * Gets the evaluation time for this text field.
	 * @return one of the evaluation time constants in {@link JRExpression}
	 */
	public EvaluationTimeEnum getEvaluationTimeValue();
		
	/**
	 * Gets the pattern used for this text field. The pattern will be used in a SimpleDateFormat for dates
	 * and a DecimalFormat for numeric text fields. The pattern format must follow one of these two classes
	 * formatting rules, as specified in the JDK API docs.
	 * @return a string containing the pattern.
	 */
	public String getPattern();
		
	public String getOwnPattern();

	/**
	 * Sets the pattern used for this text field. The pattern will be used in a SimpleDateFormat for dates
	 * and a DecimalFormat for numeric text fields. The pattern format must follow one of these two classes
	 * formatting rules, as specified in the JDK API docs. If the pattern is incorrect, the exception thrown by formatter
	 * classes will be rethrown by the JasperReports fill engine.
	 */
	public void setPattern(String pattern);
		
	/**
	 * Indicates whether an empty string will be displayed if the field's expression evaluates to null.
	 * @return true if an empty string will be displayed instead of null values, false otherwise
	 */
	public boolean isBlankWhenNull();

	public Boolean isOwnBlankWhenNull();

	/**
	 * Specifies whether an empty string sholuld be displayed if the field's expression evaluates to null.
	 * @param isBlank true if an empty string will be displayed instead of null values, false otherwise
	 */
	public void setBlankWhenNull(boolean isBlank);

	public void setBlankWhenNull(Boolean isBlank);

	/**
	 * Gets the evaluation group for this text field. Used only when evaluation time is group.
	 * @see JRExpression#EVALUATION_TIME_GROUP
	 */
	public JRGroup getEvaluationGroup();
		
	/**
	 * Gets the expression for this field. The result obtained after evaluating this expression will be dispayed as
	 * the field text.
	 */
	public JRExpression getExpression();
		

}