X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FEnumerationVariableModifier.java;fp=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FEnumerationVariableModifier.java;h=b551adae60a163969ba1ea2b356deefa3fb71be4;hp=42fa4045d4a2c77de0e33389898930da202b906d;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hpb=24e2b34260f219f0d1644ca7a138894980e25b14 diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/EnumerationVariableModifier.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/EnumerationVariableModifier.java index 42fa4045d..b551adae6 100644 --- a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/EnumerationVariableModifier.java +++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/EnumerationVariableModifier.java @@ -1,110 +1,110 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 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.graph.impl; - -import java.util.List; - -import org.simantics.browsing.ui.content.Labeler.EnumerationModifier; -import org.simantics.db.ReadGraph; -import org.simantics.db.RequestProcessor; -import org.simantics.db.Session; -import org.simantics.db.UndoContext; -import org.simantics.db.common.request.ReadRequest; -import org.simantics.db.exception.DatabaseException; -import org.simantics.db.layer0.variable.Variable; -import org.simantics.db.layer0.variable.VariableWrite; -import org.simantics.utils.datastructures.Callback; -import org.simantics.utils.ui.ErrorLogger; - -/** - * @author Tuukka Lehtonen - */ -public class EnumerationVariableModifier implements EnumerationModifier { - - protected final Session session; - protected final UndoContext undoContext; - protected final Variable variable; - protected final List allowedValues; - protected final String defaultValue; - - private String initialValue; - protected Throwable modifierFailed; - - public EnumerationVariableModifier(RequestProcessor processor, UndoContext undoContext, Variable variable, - List allowedValues, String defaultValue) { - this.session = processor.getSession(); - this.undoContext = undoContext; - this.variable = variable; - this.allowedValues = allowedValues; - this.defaultValue = defaultValue; - - initializeModifier(processor); - } - - protected void initializeModifier(RequestProcessor processor) { - try { - processor.syncRequest(new ReadRequest() { - @Override - public void run(ReadGraph graph) throws DatabaseException { - initialValue = getInitialValue(graph); - } - }); - } catch (DatabaseException e) { - modifierFailed = e; - } - } - - protected void doModify(final String label) { - session.asyncRequest(new VariableWrite(variable, label, null, null), - new Callback() { - @Override - public void run(DatabaseException parameter) { - if (parameter != null) - ErrorLogger.defaultLogError(parameter); - } - }); - } - - protected String getInitialValue(ReadGraph graph) throws DatabaseException { - Object value = variable.getValue(graph); - return value == null ? defaultValue : value.toString(); - } - - @Override - public String getValue() { - return initialValue; - } - - @Override - public String isValid(String label) { - if (modifierFailed != null) - return "Could not resolve validator for this value, modification denied. Reason: " - + modifierFailed.getMessage(); - // Validity should already be enforced by the editing UI for - // enumerations. - return null; - } - - @Override - public final void modify(String label) { - if (modifierFailed != null) - // Should never end up here, isValid should prevent it. - throw new Error("modifier failed: " + modifierFailed.getMessage()); - doModify(label); - } - - @Override - public List getValues() { - return allowedValues; - } - -}; +/******************************************************************************* + * Copyright (c) 2007, 2010 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.graph.impl; + +import java.util.List; + +import org.simantics.browsing.ui.content.Labeler.EnumerationModifier; +import org.simantics.db.ReadGraph; +import org.simantics.db.RequestProcessor; +import org.simantics.db.Session; +import org.simantics.db.UndoContext; +import org.simantics.db.common.request.ReadRequest; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.layer0.variable.Variable; +import org.simantics.db.layer0.variable.VariableWrite; +import org.simantics.utils.datastructures.Callback; +import org.simantics.utils.ui.ErrorLogger; + +/** + * @author Tuukka Lehtonen + */ +public class EnumerationVariableModifier implements EnumerationModifier { + + protected final Session session; + protected final UndoContext undoContext; + protected final Variable variable; + protected final List allowedValues; + protected final String defaultValue; + + private String initialValue; + protected Throwable modifierFailed; + + public EnumerationVariableModifier(RequestProcessor processor, UndoContext undoContext, Variable variable, + List allowedValues, String defaultValue) { + this.session = processor.getSession(); + this.undoContext = undoContext; + this.variable = variable; + this.allowedValues = allowedValues; + this.defaultValue = defaultValue; + + initializeModifier(processor); + } + + protected void initializeModifier(RequestProcessor processor) { + try { + processor.syncRequest(new ReadRequest() { + @Override + public void run(ReadGraph graph) throws DatabaseException { + initialValue = getInitialValue(graph); + } + }); + } catch (DatabaseException e) { + modifierFailed = e; + } + } + + protected void doModify(final String label) { + session.asyncRequest(new VariableWrite(variable, label, null, null), + new Callback() { + @Override + public void run(DatabaseException parameter) { + if (parameter != null) + ErrorLogger.defaultLogError(parameter); + } + }); + } + + protected String getInitialValue(ReadGraph graph) throws DatabaseException { + Object value = variable.getValue(graph); + return value == null ? defaultValue : value.toString(); + } + + @Override + public String getValue() { + return initialValue; + } + + @Override + public String isValid(String label) { + if (modifierFailed != null) + return "Could not resolve validator for this value, modification denied. Reason: " + + modifierFailed.getMessage(); + // Validity should already be enforced by the editing UI for + // enumerations. + return null; + } + + @Override + public final void modify(String label) { + if (modifierFailed != null) + // Should never end up here, isValid should prevent it. + throw new Error("modifier failed: " + modifierFailed.getMessage()); + doModify(label); + } + + @Override + public List getValues() { + return allowedValues; + } + +};