reportbuilder/java/org/libreoffice/report/pentaho/model/OfficeStylesCollection.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18 package org.libreoffice.report.pentaho.model;
  19
  20 import org.libreoffice.report.pentaho.OfficeNamespaces;
  21
  22 import org.jfree.report.structure.Element;
  23
  24 /**
  25  * Holds all style-definitions and provides some simplified lookup methods to
  26  * grab them by their type and name.
  27  *
  28  * <p>For now, we are only interested in 'style:style' nodes. Each of these nodes
  29  * has a style-name and a style-family. Each style declaration can have a parent
  30  * style, from which properties are inherited.</p>
  31  *
  32  * <p>Style names are unique within the family, no matter whether the style is an
  33  * automatic style, a common style or a master style.</p>
  34  *
  35  * <p>The contents of this element are the union of the 'styles.xml' file (if it
  36  * exists), the font-declarations and auto-styles of the document-content.xml
  37  * and the styles declared in the main document.</p>
  38  *
  39  * @since 06.03.2007
  40  */
  41 public class OfficeStylesCollection extends Element
  42 {
  43     // Font-face declarations are copied as is. We simply merge them by adding
  44     // them all in one set. This may result in duplicate entries, but as the
  45     // fileformat does not forbid that, it therefore must be ok.
  46
  47     private final FontFaceDeclsSection fontFaceDecls;
  48     private final OfficeStyles automaticStyles;
  49     private final OfficeStyles commonStyles;
  50     private final OfficeMasterStyles masterStyles;
  51
  52     public OfficeStylesCollection()
  53     {
  54         fontFaceDecls = new FontFaceDeclsSection();
  55
  56         automaticStyles = new OfficeStyles();
  57         automaticStyles.setType("automatic-styles");
  58         automaticStyles.setNamespace(OfficeNamespaces.OFFICE_NS);
  59
  60         commonStyles = new OfficeStyles();
  61         commonStyles.setType("styles");
  62         commonStyles.setNamespace(OfficeNamespaces.OFFICE_NS);
  63
  64         masterStyles = new OfficeMasterStyles();
  65         masterStyles.setType("master-styles");
  66         masterStyles.setNamespace(OfficeNamespaces.OFFICE_NS);
  67     }
  68
  69     public OfficeStyle getStyle(final String family, final String name)
  70     {
  71         final OfficeStyle commonStyle = commonStyles.getStyle(family, name);
  72         if (commonStyle != null)
  73         {
  74             return commonStyle;
  75         }
  76         final OfficeStyle autoStyle = automaticStyles.getStyle(family, name);
  77         if (autoStyle != null)
  78         {
  79             return autoStyle;
  80         }
  81
  82         // And later: Autogenerate one of the default styles.
  83         // However, at this moment, we don't have a clue about the default styles
  84         // at all. Maybe we should add them to make this implementation more robust
  85         // against invalid documents.
  86         return null;
  87     }
  88
  89     public boolean containsStyle(final String family, final String name)
  90     {
  91         return (getStyle(family, name) != null);
  92     }
  93
  94     public OfficeStyles getAutomaticStyles()
  95     {
  96         return automaticStyles;
  97     }
  98
  99     public OfficeStyles getCommonStyles()
 100     {
 101         return commonStyles;
 102     }
 103
 104     public OfficeMasterStyles getMasterStyles()
 105     {
 106         return masterStyles;
 107     }
 108
 109     public FontFaceDeclsSection getFontFaceDecls()
 110     {
 111         return fontFaceDecls;
 112     }
 113 }