feat: Support Snippet menu (#88)

examples/org.eclipse.swt.snippets/.settings/org.eclipse.jdt.core.prefs

@@ -1,4 +1,5 @@
 eclipse.preferences.version=1
+org.eclipse.jdt.core.builder.annotationPath.allLocations=disabled
 org.eclipse.jdt.core.compiler.annotation.inheritNullAnnotations=disabled
 org.eclipse.jdt.core.compiler.annotation.missingNonNullByDefaultAnnotation=ignore
 org.eclipse.jdt.core.compiler.annotation.nonnull=org.eclipse.jdt.annotation.NonNull
@@ -103,7 +104,7 @@ org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionWhenOverridin
 org.eclipse.jdt.core.compiler.problem.unusedExceptionParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedImport=error
 org.eclipse.jdt.core.compiler.problem.unusedLabel=warning
-org.eclipse.jdt.core.compiler.problem.unusedLocal=error
+org.eclipse.jdt.core.compiler.problem.unusedLocal=warning
 org.eclipse.jdt.core.compiler.problem.unusedObjectAllocation=ignore
 org.eclipse.jdt.core.compiler.problem.unusedParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedParameterIncludeDocCommentReference=enabled

examples/org.eclipse.swt.snippets/META-INF/MANIFEST.MF

@@ -6,7 +6,9 @@ Bundle-Version: 3.4.0
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Require-Bundle: org.eclipse.swt,
- org.eclipse.ui
+ org.eclipse.ui,
+ org.eclipse.osgi,
+ org.eclipse.core.runtime
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Automatic-Module-Name: org.eclipse.swt.snippets
 Bundle-ActivationPolicy: lazy

examples/org.eclipse.swt.snippets/build.properties

@@ -16,4 +16,5 @@ bin.includes = META-INF/,\
                previews/,\
                plugin.xml,\
                plugin.properties,\
-               about.html
+               about.html,\
+               source/

examples/org.eclipse.swt.snippets/source/Snippet1.java

@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2012 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.swt.snippets;
+
+/*
+ * example snippet: Hello World
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.widgets.*;
+
+public class Snippet1 {
+
+public static void main (String [] args) {
+	Display display = new Display ();
+	Shell shell = new Shell(display);
+	shell.setText("Snippet 1");
+	shell.open ();
+	while (!shell.isDisposed ()) {
+		if (!display.readAndDispatch ()) display.sleep ();
+	}
+	display.dispose ();
+}
+}

examples/org.eclipse.swt.snippets/source/Snippet10.java

@@ -0,0 +1,68 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2016 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.swt.snippets;
+
+/*
+ * Draw using transformations, paths and alpha blending
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ *
+ * @since 3.1
+ */
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet10 {
+	public static void main(String[] args) {
+		final Display display = new Display();
+		final Shell shell = new Shell(display);
+		shell.setText("Advanced Graphics");
+		FontData fd = shell.getFont().getFontData()[0];
+		final Font font = new Font(display, fd.getName(), 60, SWT.BOLD | SWT.ITALIC);
+		final Image image = new Image(display, 640, 480);
+		final Rectangle rect = image.getBounds();
+		GC gc = new GC(image);
+		gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
+		gc.fillOval(rect.x, rect.y, rect.width, rect.height);
+		gc.dispose();
+		shell.addListener(SWT.Paint, event -> {
+			GC gc1 = event.gc;
+			Transform tr = new Transform(display);
+			tr.translate(50, 120);
+			tr.rotate(-30);
+			gc1.drawImage(image, 0, 0, rect.width, rect.height, 0, 0, rect.width / 2, rect.height / 2);
+			gc1.setAlpha(100);
+			gc1.setTransform(tr);
+			Path path = new Path(display);
+			path.addString("SWT", 0, 0, font);
+			gc1.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
+			gc1.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
+			gc1.fillPath(path);
+			gc1.drawPath(path);
+			tr.dispose();
+			path.dispose();
+		});
+		shell.setSize(shell.computeSize(rect.width / 2, rect.height / 2));
+		shell.open();
+		while (!shell.isDisposed()) {
+			if (!display.readAndDispatch())
+				display.sleep();
+		}
+		image.dispose();
+		font.dispose();
+		display.dispose();
+	}
+}

examples/org.eclipse.swt.snippets/source/Snippet100.java

@@ -0,0 +1,51 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2011 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.swt.snippets;
+
+/*
+ * Font example snippet: create a large font for use by a text widget
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet100 {
+
+public static void main(String[] args) {
+	Display display = new Display();
+	Shell shell = new Shell(display);
+	shell.setText("Snippet 100");
+	shell.setBounds(10, 10, 200, 200);
+	Text text = new Text(shell, SWT.MULTI);
+	Rectangle clientArea = shell.getClientArea();
+	text.setBounds(clientArea.x + 10, clientArea.y + 10, 150, 150);
+	Font initialFont = text.getFont();
+	FontData[] fontData = initialFont.getFontData();
+	for (FontData element : fontData) {
+		element.setHeight(24);
+	}
+	Font newFont = new Font(display, fontData);
+	text.setFont(newFont);
+	shell.open();
+	while (!shell.isDisposed()) {
+		if (!display.readAndDispatch())
+			display.sleep();
+	}
+	newFont.dispose();
+	display.dispose();
+}
+}

examples/org.eclipse.swt.snippets/source/Snippet101.java

@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2011 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.swt.snippets;
+
+/*
+ * Table example snippet: insert a table item (at an index)
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet101 {
+
+public static void main (String [] args) {
+	Display display = new Display ();
+	Shell shell = new Shell (display);
+	shell.setText("Snippet 101");
+	Table table = new Table (shell, SWT.BORDER | SWT.MULTI);
+	Rectangle clientArea = shell.getClientArea ();
+	table.setBounds (clientArea.x, clientArea.y, 200, 200);
+	for (int i=0; i<12; i++) {
+		TableItem item = new TableItem (table, SWT.NONE);
+		item.setText ("Item " + i);
+	}
+	TableItem item = new TableItem (table, SWT.NONE, 1);
+	item.setText ("*** New Item " + table.indexOf (item) + " ***");
+	shell.pack ();
+	shell.open ();
+	while (!shell.isDisposed ()) {
+		if (!display.readAndDispatch ()) display.sleep ();
+	}
+	display.dispose ();
+}
+
+}
+

examples/org.eclipse.swt.snippets/source/Snippet102.java

@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2011 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.swt.snippets;
+
+/*
+ * Tree example snippet: insert a tree item (at an index)
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet102 {
+
+public static void main (String [] args) {
+	Display display = new Display ();
+	Shell shell = new Shell (display);
+	shell.setText("Snippet 102");
+	Tree tree = new Tree (shell, SWT.BORDER | SWT.MULTI);
+	Rectangle clientArea = shell.getClientArea ();
+	tree.setBounds (clientArea.x, clientArea.y, 200, 200);
+	for (int i=0; i<12; i++) {
+		TreeItem item = new TreeItem (tree, SWT.NONE);
+		item.setText ("Item " + i);
+	}
+	TreeItem item = new TreeItem (tree, SWT.NONE, 1);
+	TreeItem [] items = tree.getItems ();
+	int index = 0;
+	while (index < items.length && items [index] != item) index++;
+	item.setText ("*** New Item " + index + " ***");
+	shell.pack ();
+	shell.open ();
+	while (!shell.isDisposed ()) {
+		if (!display.readAndDispatch ()) display.sleep ();
+	}
+	display.dispose ();
+}
+
+}

examples/org.eclipse.swt.snippets/source/Snippet103.java

@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2016 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.swt.snippets;
+
+/*
+ * Table example snippet: update table item text
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet103 {
+
+static char content = 'a';
+public static void main(String[] args) {
+	final Display display = new Display();
+	Shell shell = new Shell(display);
+	shell.setText("Snippet 103");
+	shell.setBounds(10, 10, 200, 240);
+	Table table = new Table(shell, SWT.NONE);
+	Rectangle clientArea = shell.getClientArea ();
+	table.setBounds (clientArea.x + 10, clientArea.y + 10, 160, 160);
+
+	final TableItem[] items = new TableItem[4];
+	for (int i = 0; i < 4; i++) {
+		new TableColumn(table, SWT.NONE).setWidth(40);
+	}
+	for (int i = 0; i < 4; i++) {
+		items[i] = new TableItem(table, SWT.NONE);
+		populateItem(items[i]);
+	}
+
+	Button button = new Button(shell, SWT.PUSH);
+	button.setText("Change");
+	button.pack();
+	button.setLocation(10, 180);
+	button.addListener(SWT.Selection, event -> {
+		for (int i = 0; i < 4; i++) {
+			populateItem(items[i]);
+		}
+	});
+
+	shell.open();
+	while (!shell.isDisposed()) {
+		if (!display.readAndDispatch()) display.sleep();
+	}
+	display.dispose();
+}
+
+static void populateItem(TableItem item) {
+	String stringContent = String.valueOf(content);
+	item.setText(
+		new String[] {
+			stringContent,
+			stringContent,
+			stringContent,
+			stringContent });
+	content++;
+	if (content > 'z') content = 'a';
+}
+
+}