Package net.sf.jasperreports.engine.base

Source Code of net.sf.jasperreports.engine.base.JRBaseElement

/*
* 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 <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.engine.base;

import java.awt.Color;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.Serializable;

import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRDefaultStyleProvider;
import net.sf.jasperreports.engine.JRElement;
import net.sf.jasperreports.engine.JRElementGroup;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRGroup;
import net.sf.jasperreports.engine.JRPropertiesHolder;
import net.sf.jasperreports.engine.JRPropertiesMap;
import net.sf.jasperreports.engine.JRPropertyExpression;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JRStyle;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
import net.sf.jasperreports.engine.type.ModeEnum;
import net.sf.jasperreports.engine.type.PositionTypeEnum;
import net.sf.jasperreports.engine.type.StretchTypeEnum;
import net.sf.jasperreports.engine.util.JRStyleResolver;


/**
* This class provides a skeleton implementation for a report element. It mostly provides internal variables, representing
* the most common element properties, and their getter/setter methods. It also has a constructor for initializing
* these properties.
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRBaseElement.java 3941 2010-08-20 10:55:10Z teodord $
*/
public abstract class JRBaseElement implements JRElement, Serializable, JRChangeEventsSupport
{


  /**
   *
   */
  private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;

  public static final String PROPERTY_POSITION_TYPE = "positionType";

  public static final String PROPERTY_PRINT_IN_FIRST_WHOLE_BAND = "isPrintInFirstWholeBand";

  public static final String PROPERTY_PRINT_REPEATED_VALUES = "isPrintRepeatedValues";

  public static final String PROPERTY_PRINT_WHEN_DETAIL_OVERFLOWS = "isPrintWhenDetailOverflows";

  public static final String PROPERTY_REMOVE_LINE_WHEN_BLANK = "isRemoveLineWhenBlank";

  public static final String PROPERTY_STRETCH_TYPE = "stretchType";

  public static final String PROPERTY_WIDTH = "width";

  public static final String PROPERTY_X = "x";

  /**
   *
   */
  protected String key;
  protected PositionTypeEnum positionTypeValue;
  protected StretchTypeEnum stretchTypeValue = StretchTypeEnum.NO_STRETCH;
  protected boolean isPrintRepeatedValues = true;
  protected ModeEnum modeValue;
  protected int x;
  protected int y;
  protected int width;
  protected int height;
  protected boolean isRemoveLineWhenBlank;
  protected boolean isPrintInFirstWholeBand;
  protected boolean isPrintWhenDetailOverflows;
  protected Color forecolor;
  protected Color backcolor;

  /**
   *
   */
  protected JRExpression printWhenExpression;
  protected JRGroup printWhenGroupChanges;
  protected JRElementGroup elementGroup;

  protected JRDefaultStyleProvider defaultStyleProvider;
  protected JRStyle parentStyle;
  protected String parentStyleNameReference;

  private JRPropertiesMap propertiesMap;

  private JRPropertyExpression[] propertyExpressions;
 
  /**
   *
   */
  protected JRBaseElement(JRDefaultStyleProvider defaultStyleProvider)
  {
    this.defaultStyleProvider = defaultStyleProvider;
  }


  /**
   * Initializes basic properties of the element.
   * @param element an element whose properties are copied to this element. Usually it is a
   * {@link net.sf.jasperreports.engine.design.JRDesignElement} that must be transformed into an
   * <tt>JRBaseElement</tt> at compile time.
   * @param factory a factory used in the compile process
   */
  protected JRBaseElement(JRElement element, JRBaseObjectFactory factory)
  {
    factory.put(element, this);

    defaultStyleProvider = factory.getDefaultStyleProvider();

    parentStyle = factory.getStyle(element.getStyle());
    parentStyleNameReference = element.getStyleNameReference();

    key = element.getKey();
    positionTypeValue = element.getPositionTypeValue();
    stretchTypeValue = element.getStretchTypeValue();
    isPrintRepeatedValues = element.isPrintRepeatedValues();
    modeValue = element.getOwnModeValue();
    x = element.getX();
    y = element.getY();
    width = element.getWidth();
    height = element.getHeight();
    isRemoveLineWhenBlank = element.isRemoveLineWhenBlank();
    isPrintInFirstWholeBand = element.isPrintInFirstWholeBand();
    isPrintWhenDetailOverflows = element.isPrintWhenDetailOverflows();
    forecolor = element.getOwnForecolor();
    backcolor = element.getOwnBackcolor();

    printWhenExpression = factory.getExpression(element.getPrintWhenExpression());
    printWhenGroupChanges = factory.getGroup(element.getPrintWhenGroupChanges());
    elementGroup = (JRElementGroup)factory.getVisitResult(element.getElementGroup());
   
    propertiesMap = JRPropertiesMap.getPropertiesClone(element);
    copyPropertyExpressions(element, factory);
  }


  private void copyPropertyExpressions(JRElement element,
      JRBaseObjectFactory factory)
  {
    JRPropertyExpression[] props = element.getPropertyExpressions();
    if (props != null && props.length > 0)
    {
      propertyExpressions = new JRPropertyExpression[props.length];
      for (int i = 0; i < props.length; i++)
      {
        propertyExpressions[i] = factory.getPropertyExpression(props[i]);
      }
    }
  }


  /**
   *
   */
  public JRDefaultStyleProvider getDefaultStyleProvider()
  {
    return defaultStyleProvider;
  }

  /**
   *
   */
  protected JRStyle getBaseStyle()
  {
    if (parentStyle != null)
    {
      return parentStyle;
    }
    if (defaultStyleProvider != null)
    {
      return defaultStyleProvider.getDefaultStyle();
    }
    return null;
  }

  /**
   *
   */
  public String getKey()
  {
    return this.key;
  }

  /**
   * @deprecated Replaced by {@link #getPositionTypeValue()}.
   */
  public byte getPositionType()
  {
    return getPositionTypeValue().getValue();
  }

  /**
   *
   */
  public PositionTypeEnum getPositionTypeValue()
  {
    return positionTypeValue;
  }

  /**
   * @deprecated Replaced by {@link #setPositionType(PositionTypeEnum)}.
   */
  public void setPositionType(byte positionType)
  {
    setPositionType(PositionTypeEnum.getByValue(positionType));
  }

  /**
   *
   */
  public void setPositionType(PositionTypeEnum positionTypeValue)
  {
    PositionTypeEnum old = this.positionTypeValue;
    this.positionTypeValue = positionTypeValue;
    getEventSupport().firePropertyChange(PROPERTY_POSITION_TYPE, old, this.positionTypeValue);
  }

  /**
   * @deprecated Replaced by {@link #getStretchTypeValue()}.
   */
  public byte getStretchType()
  {
    return getStretchTypeValue().getValue();
  }

  /**
   * @deprecated Replaced by {@link #setStretchType(StretchTypeEnum)}.
   */
  public void setStretchType(byte stretchType)
  {
    setStretchType(StretchTypeEnum.getByValue(stretchType));
  }

  /**
   *
   */
  public StretchTypeEnum getStretchTypeValue()
  {
    return stretchTypeValue;
  }

  /**
   *
   */
  public void setStretchType(StretchTypeEnum stretchTypeValue)
  {
    StretchTypeEnum old = this.stretchTypeValue;
    this.stretchTypeValue = stretchTypeValue;
    getEventSupport().firePropertyChange(PROPERTY_STRETCH_TYPE, old, this.stretchTypeValue);
  }

  /**
   *
   */
  public boolean isPrintRepeatedValues()
  {
    return this.isPrintRepeatedValues;
  }

  /**
   *
   */
  public void setPrintRepeatedValues(boolean isPrintRepeatedValues)
  {
    boolean old = this.isPrintRepeatedValues;
    this.isPrintRepeatedValues = isPrintRepeatedValues;
    getEventSupport().firePropertyChange(PROPERTY_PRINT_REPEATED_VALUES, old, this.isPrintRepeatedValues);
  }

  /**
   * @deprecated Replaced by {@link #getModeValue()}.
   */
  public byte getMode()
  {
    return getModeValue().getValue();
  }

  /**
   * @deprecated Replaced by {@link #getOwnModeValue()}.
   */
  public Byte getOwnMode()
  {
    return getOwnModeValue() == null ? null : getOwnModeValue().getValueByte();
  }

  /**
   *
   */
  public ModeEnum getModeValue()
  {
    return JRStyleResolver.getMode(this, ModeEnum.OPAQUE);
  }

  /**
   *
   */
  public ModeEnum getOwnModeValue()
  {
    return modeValue;
  }

  /**
   * @deprecated Replaced by {@link #setMode(ModeEnum)}.
   */
  public void setMode(byte mode)
  {
    setMode(ModeEnum.getByValue(mode));
  }

  /**
   * @deprecated Replaced by {@link #setMode(ModeEnum)}.
   */
  public void setMode(Byte mode)
  {
    setMode(ModeEnum.getByValue(mode));
  }

  /**
   *
   */
  public void setMode(ModeEnum modeValue)
  {
    Object old = this.modeValue;
    this.modeValue = modeValue;
    getEventSupport().firePropertyChange(JRBaseStyle.PROPERTY_MODE, old, this.modeValue);
  }

  /**
   *
   */
  public int getX()
  {
    return this.x;
  }

  /**
   *
   */
  public void setX(int x)
  {
    int old = this.x;
    this.x = x;
    getEventSupport().firePropertyChange(PROPERTY_X, old, this.x);
  }

  /**
   *
   */
  public int getY()
  {
    return this.y;
  }

  /**
   *
   */
  public int getWidth()
  {
    return this.width;
  }

  /**
   *
   */
  public void setWidth(int width)
  {
    int old = this.width;
    this.width = width;
    getEventSupport().firePropertyChange(PROPERTY_WIDTH, old, this.width);
  }

  /**
   *
   */
  public int getHeight()
  {
    return this.height;
  }

  /**
   *
   */
  public boolean isRemoveLineWhenBlank()
  {
    return this.isRemoveLineWhenBlank;
  }

  /**
   *
   */
  public void setRemoveLineWhenBlank(boolean isRemoveLine)
  {
    boolean old = this.isRemoveLineWhenBlank;
    this.isRemoveLineWhenBlank = isRemoveLine;
    getEventSupport().firePropertyChange(PROPERTY_REMOVE_LINE_WHEN_BLANK, old, this.isRemoveLineWhenBlank);
  }

  /**
   *
   */
  public boolean isPrintInFirstWholeBand()
  {
    return this.isPrintInFirstWholeBand;
  }

  /**
   *
   */
  public void setPrintInFirstWholeBand(boolean isPrint)
  {
    boolean old = this.isPrintInFirstWholeBand;
    this.isPrintInFirstWholeBand = isPrint;
    getEventSupport().firePropertyChange(PROPERTY_PRINT_IN_FIRST_WHOLE_BAND, old, this.isPrintInFirstWholeBand);
  }

  /**
   *
   */
  public boolean isPrintWhenDetailOverflows()
  {
    return this.isPrintWhenDetailOverflows;
  }

  /**
   *
   */
  public void setPrintWhenDetailOverflows(boolean isPrint)
  {
    boolean old = this.isPrintWhenDetailOverflows;
    this.isPrintWhenDetailOverflows = isPrint;
    getEventSupport().firePropertyChange(PROPERTY_PRINT_WHEN_DETAIL_OVERFLOWS, old, this.isPrintWhenDetailOverflows);
  }

  /**
   *
   */
  public Color getForecolor()
  {
    return JRStyleResolver.getForecolor(this);
  }

  /**
   *
   */
  public Color getOwnForecolor()
  {
    return forecolor;
  }

  /**
   *
   */
  public void setForecolor(Color forecolor)
  {
    Object old = this.forecolor;
    this.forecolor = forecolor;
    getEventSupport().firePropertyChange(JRBaseStyle.PROPERTY_FORECOLOR, old, this.forecolor);
  }

  /**
   *
   */
  public Color getBackcolor()
  {
    return JRStyleResolver.getBackcolor(this);
  }

  /**
   *
   */
  public Color getOwnBackcolor()
  {
    return backcolor;
  }

  /**
   *
   */
  public void setBackcolor(Color backcolor)
  {
    Object old = this.backcolor;
    this.backcolor = backcolor;
    getEventSupport().firePropertyChange(JRBaseStyle.PROPERTY_BACKCOLOR, old, this.backcolor);
  }

  /**
   *
   */
  public JRExpression getPrintWhenExpression()
  {
    return this.printWhenExpression;
  }

  /**
   *
   */
  public JRGroup getPrintWhenGroupChanges()
  {
    return this.printWhenGroupChanges;
  }

  /**
   *
   */
  public JRElementGroup getElementGroup()
  {
    return this.elementGroup;
  }

  public JRStyle getStyle()
  {
    return parentStyle;
  }

  public String getStyleNameReference()
  {
    return parentStyleNameReference;
  }
 
  private transient JRPropertyChangeSupport eventSupport;
 
  public JRPropertyChangeSupport getEventSupport()
  {
    synchronized (this)
    {
      if (eventSupport == null)
      {
        eventSupport = new JRPropertyChangeSupport(this);
      }
    }
   
    return eventSupport;
  }

  /**
   *
   */
  public Object clone()
  {
    JRBaseElement clone = null;
   
    try
    {
      clone = (JRBaseElement)super.clone();
    }
    catch (CloneNotSupportedException e)
    {
      throw new JRRuntimeException(e);
    }

    if (printWhenExpression != null)
    {
      clone.printWhenExpression = (JRExpression)printWhenExpression.clone();
    }
   
    //FIXME reset eventSupport
   
    return clone;
  }

  /**
   *
   */
  public Object clone(JRElementGroup parentGroup)
  {
    JRBaseElement clone = (JRBaseElement)this.clone();
   
    clone.elementGroup = parentGroup;
   
    return clone;
  }

  public boolean hasProperties()
  {
    return propertiesMap != null && propertiesMap.hasProperties();
  }

  public JRPropertiesMap getPropertiesMap()
  {
    if (propertiesMap == null)
    {
      propertiesMap = new JRPropertiesMap();
    }
    return propertiesMap;
  }

  public JRPropertiesHolder getParentProperties()
  {
    return null;
  }

  public JRPropertyExpression[] getPropertyExpressions()
  {
    return propertyExpressions;
  }

 
  /*
   * These fields are only for serialization backward compatibility.
   */
  private int PSEUDO_SERIAL_VERSION_UID = JRConstants.PSEUDO_SERIAL_VERSION_UID; //NOPMD
  /**
   * @deprecated
   */
  private Byte mode;
  /**
   * @deprecated
   */
  private byte positionType;
  /**
   * @deprecated
   */
  private byte stretchType;
 
  private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
  {
    in.defaultReadObject();
   
    if (PSEUDO_SERIAL_VERSION_UID < JRConstants.PSEUDO_SERIAL_VERSION_UID_3_7_2)
    {
      modeValue = ModeEnum.getByValue(mode);
      positionTypeValue = PositionTypeEnum.getByValue(positionType);
      stretchTypeValue = StretchTypeEnum.getByValue(stretchType);
     
      mode = null;
    }
  }

}
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