ElementDefaultStyleSheet.java example

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pentaho-reporting-master
/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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.
 *
 * Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
 */

package org.pentaho.reporting.engine.classic.core.style;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Stroke;

import org.pentaho.reporting.engine.classic.core.ElementAlignment;

/**
 * The default element style sheet. This style sheet defines default attribute values for all elements.
 * <p/>
 * The default valignment was modified to top.
 *
 * @author Thomas Morgner
 */
public class ElementDefaultStyleSheet extends ElementStyleSheet {
  /**
   * The default paint.
   */
  public static final Color DEFAULT_PAINT = Color.black;
  public static final Stroke DEFAULT_STROKE = new BasicStroke( 0.5f );

  /**
   * A shared default style-sheet.
   */
  private static ElementDefaultStyleSheet defaultStyle;
  /**
   * a flag indicating the read-only state of this style sheet.
   */
  private boolean locked;

  /**
   * Creates a new style sheet.
   */
  protected ElementDefaultStyleSheet() {
    setStyleProperty( ElementStyleKeys.BOX_SIZING, BoxSizing.BORDER_BOX );
    setStyleProperty( ElementStyleKeys.MIN_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.MIN_HEIGHT, new Float( 0 ) );

    setStyleProperty( TextStyleKeys.LINEHEIGHT, new Float( 0 ) );
    setStyleProperty( TextStyleKeys.RESERVED_LITERAL, ".." );
    setStyleProperty( TextStyleKeys.BOLD, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.ITALIC, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.UNDERLINED, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.STRIKETHROUGH, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.EMBEDDED_FONT, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.FONT_SMOOTH, FontSmooth.AUTO );
    setStyleProperty( TextStyleKeys.FONT, "Serif" );
    setStyleProperty( TextStyleKeys.FONTSIZE, new Integer( 10 ) );
    setStyleProperty( TextStyleKeys.WHITE_SPACE_COLLAPSE, WhitespaceCollapse.PRESERVE );
    setStyleProperty( TextStyleKeys.TRIM_TEXT_CONTENT, Boolean.FALSE );
    setStyleProperty( TextStyleKeys.TEXT_WRAP, TextWrap.WRAP );
    setStyleProperty( TextStyleKeys.DIRECTION, TextDirection.LTR );
    setStyleProperty( TextStyleKeys.WORDBREAK, Boolean.TRUE );

    setStyleProperty( ElementStyleKeys.PAINT, ElementDefaultStyleSheet.DEFAULT_PAINT );
    setStyleProperty( ElementStyleKeys.STROKE, ElementDefaultStyleSheet.DEFAULT_STROKE );
    setStyleProperty( ElementStyleKeys.VALIGNMENT, ElementAlignment.TOP );
    setStyleProperty( ElementStyleKeys.ALIGNMENT, ElementAlignment.LEFT );
    setStyleProperty( TextStyleKeys.VERTICAL_TEXT_ALIGNMENT, VerticalTextAlign.BASELINE );
    setStyleProperty( ElementStyleKeys.VISIBLE, Boolean.TRUE );

    setStyleProperty( ElementStyleKeys.BORDER_TOP_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_LEFT_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_RIGHT_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BREAK_WIDTH, new Float( 0 ) );

    setStyleProperty( ElementStyleKeys.BORDER_TOP_COLOR, Color.black );
    setStyleProperty( ElementStyleKeys.BORDER_LEFT_COLOR, Color.black );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_COLOR, Color.black );
    setStyleProperty( ElementStyleKeys.BORDER_RIGHT_COLOR, Color.black );
    setStyleProperty( ElementStyleKeys.BORDER_BREAK_COLOR, Color.black );

    setStyleProperty( ElementStyleKeys.BORDER_TOP_STYLE, BorderStyle.NONE );
    setStyleProperty( ElementStyleKeys.BORDER_LEFT_STYLE, BorderStyle.NONE );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_STYLE, BorderStyle.NONE );
    setStyleProperty( ElementStyleKeys.BORDER_RIGHT_STYLE, BorderStyle.NONE );
    setStyleProperty( ElementStyleKeys.BORDER_BREAK_STYLE, BorderStyle.NONE );

    setStyleProperty( ElementStyleKeys.BORDER_TOP_LEFT_RADIUS_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_TOP_LEFT_RADIUS_HEIGHT, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_TOP_RIGHT_RADIUS_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_TOP_RIGHT_RADIUS_HEIGHT, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_LEFT_RADIUS_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_LEFT_RADIUS_HEIGHT, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_RIGHT_RADIUS_WIDTH, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.BORDER_BOTTOM_RIGHT_RADIUS_HEIGHT, new Float( 0 ) );

    setStyleProperty( ElementStyleKeys.PADDING_TOP, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.PADDING_LEFT, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.PADDING_RIGHT, new Float( 0 ) );
    setStyleProperty( ElementStyleKeys.PADDING_BOTTOM, new Float( 0 ) );

    setBooleanStyleProperty( ElementStyleKeys.FILL_SHAPE, false );
    setBooleanStyleProperty( ElementStyleKeys.DRAW_SHAPE, false );

    setBooleanStyleProperty( ElementStyleKeys.WIDOW_ORPHAN_OPT_OUT, true );
    setLocked( true );
  }

  /**
   * Gets the locked state of this stylesheet. After the first initialization the stylesheet gets locked, so that it
   * could not be changed anymore.
   *
   * @return true, if this stylesheet is readonly.
   */
  protected boolean isLocked() {
    return locked;
  }

  /**
   * Defines the locked-state for this stylesheet.
   *
   * @param locked
   *          true, if the stylesheet is locked and read-only, false otherwise.
   */
  protected void setLocked( final boolean locked ) {
    this.locked = locked;
  }

  /**
   * Returns the default element style sheet.
   *
   * @return the style-sheet.
   */
  public static synchronized ElementDefaultStyleSheet getDefaultStyle() {
    if ( defaultStyle == null ) {
      defaultStyle = new ElementDefaultStyleSheet();
    }
    return defaultStyle;
  }

  /**
   * Sets a style property (or removes the style if the value is <code>null</code>).
   *
   * @param key
   *          the style key (<code>null</code> not permitted).
   * @param value
   *          the value.
   * @throws NullPointerException
   *           if the given key is null.
   * @throws ClassCastException
   *           if the value cannot be assigned with the given key.
   * @throws UnsupportedOperationException
   *           as this style sheet is read only.
   */
  public void setStyleProperty( final StyleKey key, final Object value ) {
    if ( isLocked() ) {
      throw new UnsupportedOperationException( "This stylesheet is readonly" );
    } else {
      super.setStyleProperty( key, value );
    }
  }

  /**
   * Clones the style-sheet. The assigned parent style sheets are not cloned. The stylesheets are not assigned to the
   * contained stylesheet collection, you have to reassign them manually ...
   *
   * @return the clone.
   */
  public ElementStyleSheet getCopy() {
    return this;
  }

}