feat: Add JFace Snippets

unknowIfGuestInDream · Jun 30, 2024 · 7f9199c · 7f9199c
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diff --git a/examples/org.eclipse.jface.examples.databinding/.project b/examples/org.eclipse.jface.examples.databinding/.project
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.eclipse.jface.examples.databinding</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/examples/org.eclipse.jface.examples.databinding/.settings/org.eclipse.jdt.core.prefs b/examples/org.eclipse.jface.examples.databinding/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,9 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=17
diff --git a/examples/org.eclipse.jface.examples.databinding/META-INF/MANIFEST.MF b/examples/org.eclipse.jface.examples.databinding/META-INF/MANIFEST.MF
@@ -0,0 +1,21 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: %pluginName
+Bundle-SymbolicName: org.eclipse.jface.examples.databinding
+Bundle-Version: 1.4.400.qualifier
+Eclipse-BundleShape: dir
+Bundle-Vendor: %providerName
+Bundle-Localization: plugin
+Require-Bundle: org.eclipse.jface,
+ org.eclipse.core.databinding,
+ org.eclipse.core.runtime,
+ org.eclipse.core.databinding.beans,
+ org.eclipse.jface.databinding,
+ org.eclipse.core.databinding.property
+Export-Package: org.eclipse.jface.examples.databinding;x-internal:=false,
+ org.eclipse.jface.examples.databinding.mask;x-internal:=false,
+ org.eclipse.jface.examples.databinding.mask.internal;x-internal:=true,
+ org.eclipse.jface.examples.databinding.model;x-internal:=false,
+ org.eclipse.jface.examples.databinding.radioGroup;x-internal:=false
+Bundle-RequiredExecutionEnvironment: JavaSE-17
+Automatic-Module-Name: org.eclipse.jface.examples.databinding
diff --git a/examples/org.eclipse.jface.examples.databinding/about.html b/examples/org.eclipse.jface.examples.databinding/about.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
+<title>About</title>
+</head>
+<body lang="EN-US">
+	<h2>About This Content</h2>
+
+	<p>November 30, 2017</p>
+	<h3>License</h3>
+
+	<p>
+		The Eclipse Foundation makes available all content in this plug-in
+		(&quot;Content&quot;). Unless otherwise indicated below, the Content
+		is provided to you under the terms and conditions of the Eclipse
+		Public License Version 2.0 (&quot;EPL&quot;). A copy of the EPL is
+		available at <a href="http://www.eclipse.org/legal/epl-2.0">http://www.eclipse.org/legal/epl-2.0</a>.
+		For purposes of the EPL, &quot;Program&quot; will mean the Content.
+	</p>
+
+	<p>
+		If you did not receive this Content directly from the Eclipse
+		Foundation, the Content is being redistributed by another party
+		(&quot;Redistributor&quot;) and different terms and conditions may
+		apply to your use of any object code in the Content. Check the
+		Redistributor's license that was provided with the Content. If no such
+		license exists, contact the Redistributor. Unless otherwise indicated
+		below, the terms and conditions of the EPL still apply to any source
+		code in the Content and such source code may be obtained at <a
+			href="http://www.eclipse.org/">http://www.eclipse.org</a>.
+	</p>
+
+</body>
+</html>
diff --git a/examples/org.eclipse.jface.examples.databinding/build.properties b/examples/org.eclipse.jface.examples.databinding/build.properties
@@ -0,0 +1,8 @@
+bin.includes = .,\
+               META-INF/,\
+               plugin.properties,\
+               about.html
+src.includes = about.html
+source.. = src/
+output.. = bin/
+javacWarnings..=-raw,unchecked          .
diff --git a/examples/org.eclipse.jface.examples.databinding/plugin.properties b/examples/org.eclipse.jface.examples.databinding/plugin.properties
@@ -0,0 +1,15 @@
+###############################################################################
+# Copyright (c) 2000, 2005 IBM Corporation and others.
+#
+# This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License 2.0
+# which accompanies this distribution, and is available at
+# https://www.eclipse.org/legal/epl-2.0/
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+# Contributors:
+#     IBM Corporation - initial API and implementation
+###############################################################################
+pluginName = JFace Data Binding Examples
+providerName = Eclipse.org
diff --git a/...se.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/ModelObject.java b/...se.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/ModelObject.java
@@ -0,0 +1,73 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2021 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jface.examples.databinding;
+
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class ModelObject {
+	private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
+	private String id;
+
+	public void addPropertyChangeListener(PropertyChangeListener listener) {
+		propertyChangeSupport.addPropertyChangeListener(listener);
+	}
+
+	public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+		propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
+	}
+
+	public void removePropertyChangeListener(PropertyChangeListener listener) {
+		propertyChangeSupport.removePropertyChangeListener(listener);
+	}
+
+	public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+		propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
+	}
+
+	protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
+		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
+	}
+
+	protected void firePropertyChange(String propertyName, int oldValue, int newValue) {
+		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
+	}
+
+	protected void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) {
+		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
+	}
+
+	public void setId(String string) {
+		Object oldValue = id;
+		id = string;
+		firePropertyChange("id", oldValue, id);
+	}
+
+	protected Object[] append(Object[] array, Object object) {
+		List<Object> newList = new ArrayList<>(Arrays.asList(array));
+		newList.add(object);
+		return newList.toArray((Object[]) Array.newInstance(array.getClass().getComponentType(), newList.size()));
+	}
+
+	protected Object[] remove(Object[] array, Object object) {
+		List<Object> newList = new ArrayList<>(Arrays.asList(array));
+		newList.remove(object);
+		return newList.toArray((Object[]) Array.newInstance(array.getClass().getComponentType(), newList.size()));
+	}
+
+}
diff --git a/.../src/org/eclipse/jface/examples/databinding/contentprovider/test/AsynchronousTestSet.java b/.../src/org/eclipse/jface/examples/databinding/contentprovider/test/AsynchronousTestSet.java
@@ -0,0 +1,162 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2018 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jface.examples.databinding.contentprovider.test;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Random;
+import java.util.Set;
+
+import org.eclipse.core.databinding.observable.Diffs;
+import org.eclipse.core.databinding.observable.set.ObservableSet;
+import org.eclipse.swt.widgets.Display;
+
+/**
+ * Test set that simulates asynchronously computed elements. The elements of the
+ * set are randomly generated Integers. Whenever the "recompute" method is
+ * called, the set will spin off a job that sleeps for a period of time and then
+ * randomly adds and removes elements from the set.
+ *
+ * <p>
+ * This simulates a set that wraps a database query or network communication.
+ * These would follow the same pattern (report the set as "stale", perform some
+ * slow operation, then make changes to the set).
+ * </p>
+ *
+ * @since 1.0
+ */
+public class AsynchronousTestSet extends ObservableSet<Object> {
+
+	private static Random randomNumberGenerator = new Random();
+
+	private final Display display;
+
+	private final boolean stale = false;
+
+	/**
+	 * Average number of elements to add or remove
+	 */
+	private static final int AVERAGE_DELTA = 4;
+
+	/**
+	 * Average "computation" time -- time taken to do the simulated work (ms)
+	 */
+	private static final int AVERAGE_BUSY_TIME = 1000;
+
+	/**
+	 * List of all undisposed AsynchronousTestSet instances. Used for the
+	 * recomputeAll method.
+	 */
+	private static List<Object> allSets = new ArrayList<>();
+
+	public AsynchronousTestSet() {
+		super(new HashSet<>(), Object.class);
+		display = Display.getCurrent();
+		if (display == null) {
+			throw new IllegalStateException(
+					"This object can only be created in the UI thread"); //$NON-NLS-1$
+		}
+		recompute();
+	}
+
+	@Override
+	protected void firstListenerAdded() {
+		super.firstListenerAdded();
+		allSets.add(this);
+	}
+
+	@Override
+	protected void lastListenerRemoved() {
+		allSets.remove(this);
+		super.lastListenerRemoved();
+	}
+
+	public static void recomputeAll() {
+		for (Object object : allSets) {
+			AsynchronousTestSet next = (AsynchronousTestSet) object;
+
+			next.recompute();
+		}
+	}
+
+	public void remove(Collection<Object> toRemove) {
+		Set<Object> removed = new HashSet<>();
+		removed.addAll(toRemove);
+		removed.retainAll(wrappedSet);
+
+		wrappedSet.removeAll(removed);
+		fireSetChange(Diffs.createSetDiff(Collections.emptySet(), removed));
+	}
+
+	@Override
+	public boolean isStale() {
+		return stale;
+	}
+
+	public void recompute() {
+		if (!isStale()) {
+			setStale(true);
+			final int sleepTime = (int) (randomNumberGenerator.nextDouble() * (AVERAGE_BUSY_TIME * 2));
+			Thread newThread = new Thread(() -> {
+
+				// Simulate work by sleeping
+				try {
+					Thread.sleep(sleepTime);
+				} catch (InterruptedException e) {
+				}
+
+				// Add and remove some elements -- important: fire all
+				// events in the UI thread
+				display.asyncExec(() -> {
+					final Set<Object> toAdd = new HashSet<>();
+					final Set<Object> toRemove = new HashSet<>();
+
+					// Compute elements to add and remove (basically
+					// just fills the toAdd
+					// and toRemove sets with random elements)
+					int delta = (randomNumberGenerator.nextInt(AVERAGE_DELTA * 4) - AVERAGE_DELTA * 2);
+					int extraAdds = randomNumberGenerator.nextInt(AVERAGE_DELTA);
+					int addCount = delta + extraAdds;
+					int removeCount = -delta + extraAdds;
+
+					if (addCount > 0) {
+						for (int i1 = 0; i1 < addCount; i1++) {
+							toAdd.add(Integer.valueOf(randomNumberGenerator.nextInt(20)));
+						}
+					}
+
+					if (removeCount > 0) {
+						Iterator<Object> oldElements = wrappedSet.iterator();
+						for (int i2 = 0; i2 < removeCount && oldElements.hasNext(); i2++) {
+							toRemove.add(oldElements.next());
+						}
+					}
+
+					toAdd.removeAll(wrappedSet);
+					wrappedSet.addAll(toAdd);
+					wrappedSet.removeAll(toRemove);
+
+					setStale(false);
+					fireSetChange(Diffs.createSetDiff(toAdd, toRemove));
+				});
+			});
+
+			newThread.start();
+		}
+	}
+}