gerrit.simantics Code Review - simantics/platform.git/blob

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.issues.ui.contribution;
  13
  14 import org.eclipse.jface.resource.FontDescriptor;
  15 import org.eclipse.swt.SWT;
  16 import org.simantics.browsing.ui.content.LabelDecorator;
  17 import org.simantics.browsing.ui.model.labeldecorators.LabelDecorationRule;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.issues.ontology.IssueResource;
  22
  23 /**
  24  * @author Tuukka Lehtonen
  25  */
  26 public enum IssueLabelDecorationRule implements LabelDecorationRule {
  27
  28     INSTANCE;
  29
  30     public static IssueLabelDecorationRule get() {
  31         return INSTANCE;
  32     }
  33
  34     @Override
  35     public boolean isCompatible(Class<?> contentType) {
  36         return contentType.equals(Resource.class);
  37     }
  38
  39     @Override
  40     public LabelDecorator getLabelDecorator(ReadGraph graph, Object content) throws DatabaseException {
  41         Resource issue = (Resource) content;
  42
  43         final boolean hidden = graph.hasStatement(issue, IssueResource.getInstance(graph).Hidden);
  44         final boolean user = graph.hasStatement(issue, IssueResource.getInstance(graph).UserIssue);
  45         final boolean resolved = graph.hasStatement(issue, IssueResource.getInstance(graph).Resolved);
  46         if (!hidden && !user && !resolved)
  47             return null;
  48
  49         return new LabelDecorator.Stub() {
  50             @SuppressWarnings("unchecked")
  51             @Override
  52             public <F> F decorateFont(F font, String column, int itemIndex) {
  53                 int style = 0;
  54                 style |= resolved ? SWT.ITALIC : 0;
  55                 return style != 0 ? (F) ((FontDescriptor) font).setStyle(style) : font;
  56             }
  57             @SuppressWarnings("unchecked")
  58             @Override
  59             public <C> C decorateForeground(C color, String column, int itemIndex) {
  60                 if (hidden)
  61                     return (C) Constants.HIDDEN_FG;
  62                 return color;
  63             }
  64             @SuppressWarnings("unchecked")
  65             @Override
  66             public <C> C decorateBackground(C color, String column, int itemIndex) {
  67                 if (user)
  68                     return (C) Constants.USER_BG;
  69                 return color;
  70             }
  71         };
  72     }
  73
  74 }