X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.model%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fmodel%2Flabeldecorators%2FLabelDecorationContribution.java;fp=bundles%2Forg.simantics.browsing.ui.model%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fmodel%2Flabeldecorators%2FLabelDecorationContribution.java;h=85b0460cdbb37a5f7deb12726389791b46be0e39;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/LabelDecorationContribution.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/LabelDecorationContribution.java new file mode 100644 index 000000000..85b0460cd --- /dev/null +++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/LabelDecorationContribution.java @@ -0,0 +1,57 @@ +/******************************************************************************* + * Copyright (c) 2010, 2011 Association for Decentralized Information Management in + * Industry THTH ry. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.browsing.ui.model.labeldecorators; + +import org.simantics.browsing.ui.BuiltinKeys; +import org.simantics.browsing.ui.NodeContext; +import org.simantics.browsing.ui.content.LabelDecorator; +import org.simantics.browsing.ui.model.InvalidContribution; +import org.simantics.browsing.ui.model.nodetypes.NodeType; +import org.simantics.browsing.ui.model.tests.Test; +import org.simantics.browsing.ui.model.visuals.VisualsContribution; +import org.simantics.db.ReadGraph; +import org.simantics.db.exception.DatabaseException; + +/** + * Produces label decorators for nodes of given node type. + * @author Hannu Niemistö + */ +public class LabelDecorationContribution extends VisualsContribution { + LabelDecorationRule labelDecorationRule; + + public LabelDecorationContribution(NodeType nodeType, Test test, LabelDecorationRule labelDecorationRule, double priority) throws InvalidContribution { + super(nodeType, test, priority); + if(!labelDecorationRule.isCompatible( + nodeType.getContentType() + )) + throw new InvalidContribution("Label decoration rule is not compatible with the content type."); + this.labelDecorationRule = labelDecorationRule; + } + + /** + * Returns a label decorator for the node or null, if contribution is + * not suitable for the input. + */ + + public LabelDecorator getLabelDecorator(ReadGraph graph, NodeContext context) { + Object content = context.getConstant(BuiltinKeys.INPUT); + try { + if(test == null || test.test(graph, content)) + return labelDecorationRule.getLabelDecorator(graph, content); + else + return null; + } catch(DatabaseException e) { + // TODO reconsider + return null; + } + } +}