1 files changed, 128 insertions, 0 deletions
diff --git a/examples/org.eclipse.swt.examples.controls/org/eclipse/swt/examples/controls/ControlPlugin.java b/examples/org.eclipse.swt.examples.controls/org/eclipse/swt/examples/controls/ControlPlugin.java
new file mode 100755
index 0000000000..945efaadc5
--- /dev/null
+++ b/examples/org.eclipse.swt.examples.controls/org/eclipse/swt/examples/controls/ControlPlugin.java
@@ -0,0 +1,128 @@
+package org.eclipse.swt.examples.controls;
+
+/*
+ * (c) Copyright IBM Corp. 2000, 2001.
+ * All Rights Reserved
+ */
+
+import java.text.*;
+import java.util.*;
+import org.eclipse.core.runtime.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.ui.plugin.*;
+
+/**
+ * The main plugin class to be used in the desktop.
+ */
+public class ControlPlugin extends AbstractUIPlugin {
+	//The shared instance.
+	private static ControlPlugin plugin;
+	private static ResourceBundle resourceBundle;
+
+	static final int
+		ciClosedFolder = 0,
+		ciOpenFolder = 1,
+		ciTarget = 2;
+	static final String[] imageLocations = {
+		"closedFolder.gif",
+		"openFolder.gif",
+		"target.gif" };
+	static Image images[];
+
+	/**
+	 * The constructor.
+	 */
+	public ControlPlugin(IPluginDescriptor descriptor) {
+		super(descriptor);
+		plugin = this;
+		resourceBundle = descriptor.getResourceBundle();
+	}
+	
+	/**
+	 * Clean up
+	 */
+	public void shutdown() throws CoreException {
+		super.shutdown();
+		freeResources();
+	}
+
+	/**
+	 * Returns the shared instance.
+	 */
+	public static ControlPlugin getDefault() {
+		return plugin;
+	}
+	
+	/**
+	 * Gets a string from the resource bundle.
+	 * We don't want to crash because of a missing String.
+	 * Returns the key if not found.
+	 */
+	public static String getResourceString(String key) {
+		try {
+			return resourceBundle.getString(key);
+		} catch (MissingResourceException e) {
+			return key;
+		} catch (NullPointerException e) {
+			return "!" + key + "!";
+		}			
+	}
+
+	/**
+	 * Gets a string from the resource bundle and binds it
+	 * with the given arguments. If the key is not found,
+	 * return the key.
+	 */
+	public static String getResourceString(String key, Object[] args) {
+		try {
+			return MessageFormat.format(getResourceString(key), args);
+		} catch (MissingResourceException e) {
+			return key;
+		} catch (NullPointerException e) {
+			return "!" + key + "!";
+		}
+	}
+
+	/**
+	 * Log an error to the ILog for this plugin
+	 * 
+	 * @param message the localized error message text
+	 * @param exception the associated exception, or null
+	 */
+	public static void logError(String message, Throwable exception) {
+		plugin.getLog().log(new Status(IStatus.ERROR, plugin.getDescriptor().getUniqueIdentifier(),
+			0, message, exception));
+	}
+
+	/**
+	 * Loads the resources
+	 */
+	public static void initResources() {
+		Class clazz = ControlPlugin.class;
+		try {
+			if (images == null) {
+				images = new Image[imageLocations.length];
+				
+				for (int i = 0; i < imageLocations.length; ++i) {
+					ImageData source = new ImageData(clazz.getResourceAsStream(
+						imageLocations[i]));
+					ImageData mask = source.getTransparencyMask();
+					images[i] = new Image(null, source, mask);
+				}
+			}	
+		} catch (Throwable ex) {
+			freeResources();
+			logError(getResourceString("error.CouldNotLoadResources"), ex);
+			throw new IllegalStateException();
+		}
+	}
+
+	/**
+	 * Frees the resources
+	 */
+	public static void freeResources() {
+		if (images != null) {
+			for (int i = 0; i < images.length; ++i) {
+				final Image image = images[i];
+				if (image != null) image.dispose();
+			}
+			images = null;
+		}
+	}
+}