1 /*******************************************************************************
2 * Copyright (c) 2010, 2011 Association for Decentralized Information Management in
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
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.browsing.ui.model.labeldecorators;
14 import org.eclipse.jface.resource.ColorDescriptor;
15 import org.eclipse.jface.resource.FontDescriptor;
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.graphics.FontData;
18 import org.eclipse.swt.graphics.RGB;
19 import org.simantics.browsing.ui.content.LabelDecorator;
20 import org.simantics.databoard.Bindings;
21 import org.simantics.db.ReadGraph;
22 import org.simantics.db.Resource;
23 import org.simantics.db.exception.DatabaseException;
24 import org.simantics.viewpoint.ontology.ViewpointResource;
27 * Constant label decoration rule decorates the label in a fixed way.
28 * @author Hannu Niemistö
30 public class ConstantLabelDecorationRule extends AbstractLabelDecorator implements LabelDecorationRule {
33 * For headless instances where no Display is available
35 private static final FontDescriptor DEFAULT_FONT_DESCRIPTOR = FontDescriptor.createFrom(new FontData("Arial", 11, 0));
39 ColorDescriptor foregroundColor;
40 ColorDescriptor backgroundColor;
43 public ConstantLabelDecorationRule(String format,
44 ColorDescriptor foregroundColor, ColorDescriptor backgroundColor,
47 String[] split = format.split("%s", 2);
48 if(split.length == 1) {
57 this.foregroundColor = foregroundColor;
58 this.backgroundColor = backgroundColor;
59 this.style = SWT.NORMAL;
61 for(char c : style.toCharArray())
65 this.style |= SWT.BOLD;
69 this.style |= SWT.ITALIC;
72 System.err.println("Invalid character '" + c + "' in style string. Only B and I recognized.");
76 private static ColorDescriptor getPossibleRelatedColor(ReadGraph g, Resource subject, Resource predicate) throws DatabaseException {
77 Resource value = g.getPossibleObject(subject, predicate);
80 RGB rgb = g.adapt(value, RGB.class);
81 return ColorDescriptor.createFrom(rgb);
84 public static ConstantLabelDecorationRule create(ReadGraph g, Resource r) throws DatabaseException {
85 ViewpointResource vr = ViewpointResource.getInstance(g);
86 String format = g.getPossibleRelatedValue(r, vr.ConstantLabelDecorationRule_HasFormat, Bindings.STRING);
88 ColorDescriptor foregroundColor = getPossibleRelatedColor(g, r, vr.ConstantLabelDecorationRule_HasForegroundColor);
89 ColorDescriptor backgroundColor = getPossibleRelatedColor(g, r, vr.ConstantLabelDecorationRule_HasBackgroundColor);
91 String style = g.getPossibleRelatedValue(r, vr.ConstantLabelDecorationRule_HasStyle, Bindings.STRING);
93 return new ConstantLabelDecorationRule(
102 public boolean isCompatible(Class<?> contentType) {
107 public LabelDecorator getLabelDecorator(ReadGraph graph, Object content)
108 throws DatabaseException {
113 public String decorateLabel(String label, String column, int itemIndex) {
117 return prefix + label + postfix;
120 @SuppressWarnings("unchecked")
121 public <Color> Color decorateForeground(Color color, String column, int itemIndex) {
122 if(foregroundColor == null)
125 return (Color)foregroundColor;
128 @SuppressWarnings("unchecked")
129 public <Color> Color decorateBackground(Color color, String column, int itemIndex) {
130 if(backgroundColor == null)
133 return (Color)backgroundColor;
136 @SuppressWarnings("unchecked")
137 public <Font> Font decorateFont(Font font, String column, int itemIndex) {
141 FontDescriptor desc = (FontDescriptor)font;
143 desc = DEFAULT_FONT_DESCRIPTOR;
144 return (Font)desc.withStyle(style);