Cleanup various deprecation warnings in the GEF component

Contributes to #778

Author: ptziegler

org.eclipse.gef/src/org/eclipse/gef/internal/InternalGEFPlugin.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2024 IBM Corporation and others.
+ * Copyright (c) 2006, 2025 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
@@ -69,15 +69,6 @@ public static AbstractUIPlugin getDefault() {
 		return singleton;
 	}
 
-	/**
-	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
-	 */
-	@Override
-	public void stop(BundleContext context) throws Exception {
-		savePluginPreferences();
-		super.stop(context);
-	}
-
 	/**
 	 * Convenience method for getting the current zoom level of the active device.If
 	 * on MacOS or Linux (x11 window system) or if the device zoom couldn't

org.eclipse.gef/src/org/eclipse/gef/ui/palette/customize/PaletteCustomizerDialog.java

@@ -296,7 +296,7 @@ public void widgetSelected(SelectionEvent event) {
 		widgets.put(Integer.valueOf(id), button);
 
 		if (descriptor != null) {
-			button.setImage(new Image(parent.getDisplay(), descriptor.getImageData()));
+			button.setImage(descriptor.createImage(parent.getDisplay()));
 			button.addDisposeListener(e -> {
 				Image img = ((Button) e.getSource()).getImage();
 				if (img != null && !img.isDisposed()) {

org.eclipse.gef/src/org/eclipse/gef/ui/palette/customize/PaletteSettingsDialog.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2024 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 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
@@ -253,7 +253,7 @@ public void widgetSelected(SelectionEvent event) {
 		widgets.put(Integer.valueOf(id), button);
 
 		if (descriptor != null) {
-			button.setImage(new Image(parent.getDisplay(), descriptor.getImageData()));
+			button.setImage(descriptor.createImage(parent.getDisplay()));
 			button.addDisposeListener(e -> {
 				Image img = ((Button) e.getSource()).getImage();
 				if (img != null && !img.isDisposed()) {

org.eclipse.gef/src/org/eclipse/gef/ui/parts/DomainEventDispatcher.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2010 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 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
@@ -15,6 +15,7 @@
 import java.util.HashMap;
 import java.util.Map;
 
+import org.eclipse.swt.SWT;
 import org.eclipse.swt.accessibility.ACC;
 import org.eclipse.swt.accessibility.AccessibleControlEvent;
 import org.eclipse.swt.accessibility.AccessibleControlListener;
@@ -28,7 +29,6 @@
 
 import org.eclipse.draw2d.EventDispatcher;
 import org.eclipse.draw2d.IFigure;
-import org.eclipse.draw2d.InputEvent;
 import org.eclipse.draw2d.SWTEventDispatcher;
 import org.eclipse.draw2d.geometry.Point;
 
@@ -409,7 +409,7 @@ public void dispatchMouseMoved(org.eclipse.swt.events.MouseEvent me) {
 			}
 		}
 		if (okToDispatch()) {
-			if ((me.stateMask & InputEvent.ANY_BUTTON) != 0) {
+			if ((me.stateMask & SWT.BUTTON_MASK) != 0) {
 				domain.mouseDrag(me, viewer);
 			} else {
 				domain.mouseMove(me, viewer);