feat: Add draw2d Examples (#103)

examples/org.eclipse.draw2d.examples/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.eclipse.draw2d.examples</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>

examples/org.eclipse.draw2d.examples/.settings/org.eclipse.jdt.core.prefs

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+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

examples/org.eclipse.draw2d.examples/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: %Plugin.name
+Bundle-SymbolicName: org.eclipse.draw2d.examples
+Bundle-Version: 3.15.300.qualifier
+Bundle-Localization: plugin
+Require-Bundle: org.eclipse.draw2d
+Bundle-Vendor: %Plugin.providerName
+Bundle-RequiredExecutionEnvironment: JavaSE-17
+Automatic-Module-Name: org.eclipse.draw2d.examples

examples/org.eclipse.draw2d.examples/build.properties

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+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .,\
+               plugin.properties

examples/org.eclipse.draw2d.examples/plugin.properties

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+###############################################################################
+# Copyright (c) 2007, 2009 IBM Corporation and others.
+#
+# This program and the accompanying materials are made available under the 
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0.
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+# Contributors:
+#     IBM Corporation - initial API and implementation
+###############################################################################
+Plugin.name=GEF Classic Draw2d Examples
+Plugin.providerName=Eclipse GEF

examples/org.eclipse.draw2d.examples/src/org/eclipse/draw2d/examples/AbstractExample.java

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+/*******************************************************************************
+ * Copyright (c) 2005, 2023 IBM Corporation and others.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.draw2d.examples;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+
+import org.eclipse.draw2d.FigureCanvas;
+import org.eclipse.draw2d.IFigure;
+
+/**
+ * A baseclass for draw2d examples.
+ *
+ * @author hudsonr
+ */
+public abstract class AbstractExample {
+
+	private static final String COURIER2 = "Courier"; //$NON-NLS-1$
+	private static final String HELVETICA = "Helvetica"; //$NON-NLS-1$
+
+	protected static final Font COURIER = new Font(null, COURIER2, 9, 0);
+	protected static final Font BOLD = new Font(null, HELVETICA, 10, SWT.BOLD);
+	protected static final Font ITALICS = new Font(null, HELVETICA, 10, SWT.ITALIC);
+	protected static final Font HEADING_1 = new Font(null, HELVETICA, 15, SWT.BOLD);
+
+	private FigureCanvas fc;
+	private IFigure contents;
+
+	private Shell shell;
+
+	protected void run() {
+		Display d = Display.getDefault();
+		shell = new Shell(d, getShellStyle());
+		String appName = getClass().getName();
+		appName = appName.substring(appName.lastIndexOf('.') + 1);
+		shell.setText(appName);
+		shell.setLayout(new GridLayout(2, false));
+		setFigureCanvas(new FigureCanvas(shell));
+		contents = createContents();
+		getFigureCanvas().setContents(contents);
+		getFigureCanvas().getViewport().setContentsTracksHeight(true);
+		getFigureCanvas().getViewport().setContentsTracksWidth(true);
+		getFigureCanvas().setLayoutData(new GridData(GridData.FILL_BOTH));
+		hookShell(shell);
+		sizeShell();
+		shell.open();
+		while (!shell.isDisposed()) {
+			while (!d.readAndDispatch()) {
+				d.sleep();
+			}
+		}
+	}
+
+	@SuppressWarnings("static-method") // allow children to provide their own shell style
+	protected int getShellStyle() {
+		return SWT.SHELL_TRIM;
+	}
+
+	protected void sizeShell() {
+		shell.pack();
+	}
+
+	protected abstract IFigure createContents();
+
+	protected FigureCanvas getFigureCanvas() {
+		return fc;
+	}
+
+	protected IFigure getContents() {
+		return contents;
+	}
+
+	public Shell getShell() {
+		return shell;
+	}
+
+	protected void hookShell(Shell shell) {
+	}
+
+	protected void setFigureCanvas(FigureCanvas canvas) {
+		this.fc = canvas;
+	}
+
+}

examples/org.eclipse.draw2d.examples/src/org/eclipse/draw2d/examples/ExampleImages.java

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+/*******************************************************************************
+ * Copyright (c) 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 is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.draw2d.examples;
+
+import org.eclipse.swt.graphics.Image;
+
+/**
+ * Created on :Sep 26, 2002
+ *
+ * @author hudsonr
+ * @since 2.0
+ */
+public final class ExampleImages {
+
+	public static final Image GEORGE = new Image(null, ExampleImages.class.getResourceAsStream("images/george.gif")); //$NON-NLS-1$
+
+	private ExampleImages() {
+		throw new UnsupportedOperationException("Utility class should not be instantiated"); //$NON-NLS-1$
+	}
+
+}

examples/org.eclipse.draw2d.examples/src/org/eclipse/draw2d/examples/ExampleUtil.java

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+/*******************************************************************************
+ * Copyright (c) 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 is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.draw2d.examples;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Font;
+
+import org.eclipse.draw2d.Figure;
+import org.eclipse.draw2d.FlowLayout;
+import org.eclipse.draw2d.GroupBoxBorder;
+import org.eclipse.draw2d.IFigure;
+import org.eclipse.draw2d.Label;
+import org.eclipse.draw2d.ToolbarLayout;
+
+/**
+ * A factory for figures. Created on :Sep 26, 2002
+ *
+ * @author hudsonr
+ * @since 2.0
+ */
+public final class ExampleUtil {
+
+	static final Font FONT_LARGE = new Font(null, "Arial", 16, SWT.BOLD); //$NON-NLS-1$
+
+	public static IFigure createFlowLayoutPanel() {
+		Figure f = new Figure();
+
+		f.setBorder(new GroupBoxBorder("FlowLayout")); //$NON-NLS-1$
+		f.setLayoutManager(new FlowLayout());
+
+		for (int i = 0; i < 5; i++) {
+			f.add(new Label("Label " + i, ExampleImages.GEORGE)); //$NON-NLS-1$
+		}
+
+//	Label l = new Label("A really wide label is here");
+//	l.setBorder(new LineBorder());
+//	l.setFont(FONT_LARGE);
+//	f.add(l);
+
+		for (int i = 6; i < 10; i++) {
+			f.add(new Label("Label " + i, ExampleImages.GEORGE)); //$NON-NLS-1$
+		}
+
+		return f;
+	}
+
+	public static IFigure createToolbarLayout() {
+		Figure f = new Figure();
+		f.setBorder(new GroupBoxBorder("Toolbar")); //$NON-NLS-1$
+		f.setLayoutManager(new ToolbarLayout());
+		f.add(createFlowLayoutPanel());
+		f.add(createFlowLayoutPanel());
+		return f;
+	}
+
+}

examples/org.eclipse.draw2d.examples/src/org/eclipse/draw2d/examples/HelloWorld.java

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+/*******************************************************************************
+ * Copyright (c) 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 is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.draw2d.examples;
+
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+
+import org.eclipse.draw2d.FigureCanvas;
+import org.eclipse.draw2d.Label;
+
+public class HelloWorld {
+
+	public static void main(String[] args) {
+
+		Display d = new Display();
+		Shell shell = new Shell(d);
+		shell.setLayout(new FillLayout());
+
+		FigureCanvas canvas = new FigureCanvas(shell);
+		canvas.setContents(new Label("Hello World")); //$NON-NLS-1$
+
+		shell.setText("Draw2d"); //$NON-NLS-1$
+		shell.setSize(200, 100);
+		shell.open();
+		while (!shell.isDisposed()) {
+			while (!d.readAndDispatch()) {
+				d.sleep();
+			}
+		}
+
+	}
+
+}