| /******************************************************************************* |
| * Copyright (c) 2016, 2019 Chalmers | University of Gothenburg, rt-labs and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Chalmers | University of Gothenburg and rt-labs - initial API and implementation and/or initial documentation |
| * Chalmers | University of Gothenburg - additional features, updated API |
| *******************************************************************************/ |
| package org.eclipse.capra.ui.plantuml; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.preferences.InstanceScope; |
| import org.eclipse.jface.dialogs.InputDialog; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.osgi.service.prefs.BackingStoreException; |
| import org.osgi.service.prefs.Preferences; |
| |
| /** |
| * Toggles between showing transitive and direct links |
| * |
| * @author Anthony Anjorin, Salome Maro |
| */ |
| public class TransitivityDepthHandler extends AbstractHandler { |
| |
| public static final String TRANSITIVITY_DEPTH_PREFERENCE = "org.eclipse.capra.ui.plantuml.transitivityDepth"; |
| |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event); |
| String initialValue = getTransitivityDepth(); |
| InputDialog depthInput = new InputDialog(window.getShell(), "Transitivity depth", |
| "Input the desired depth limit for transitivity. Enter 0 if no limit is desired.", initialValue, null); |
| if (depthInput.open() == Window.OK) { |
| String depth = depthInput.getValue(); |
| setTransitivityDepth(depth); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Gets the depth that was set by the user for transitivity returns 0 in case no |
| * depth was set or no depth limit is wanted |
| * |
| * @return |
| */ |
| public static String getTransitivityDepth() { |
| Preferences transitivity = getPreference(); |
| return transitivity.get("option", "0"); |
| } |
| |
| private static Preferences getPreference() { |
| return InstanceScope.INSTANCE.getNode(TRANSITIVITY_DEPTH_PREFERENCE); |
| } |
| |
| /** |
| * Sets whether the trace view is set to show transitive traces. |
| * |
| * @param value indicates whether transitive traces should be shown |
| */ |
| public static void setTransitivityDepth(String depth) { |
| Preferences transitivity = getPreference(); |
| |
| transitivity.put("option", depth); |
| |
| try { |
| // forces the application to save the preferences |
| transitivity.flush(); |
| } catch (BackingStoreException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |