Add guard check in automaton transition segment properties

refs 1758

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/PropertySectionBase.java

@@ -210,20 +210,18 @@ public abstract class PropertySectionBase extends AbstractPropertySection {
 	 * The decoration is stored as widget data for convenience.
 	 */
 	protected Button createDecoratedButton(String labelButton, Control control) {
-		Composite structComposite = getWidgetFactory().createComposite(composite);
-		structComposite.setLayout(new GridLayout(2, false));
-		structComposite.setLayoutData(control.getLayoutData());
-		control.setParent(structComposite);
-
-		Button button = getWidgetFactory().createButton(structComposite, labelButton, SWT.PUSH);
-		GridDataFactory.defaultsFor(button).hint(30, SWT.DEFAULT).align(SWT.END, SWT.BEGINNING)
-				.applyTo(button);
+		Composite parent = getWidgetFactory().createComposite(composite);
+		parent.setLayout(new GridLayout(2, false));
+		parent.setLayoutData(control.getLayoutData());
+		control.setParent(parent);
+
+		Button button = getWidgetFactory().createButton(parent, labelButton, SWT.PUSH);
+		GridDataFactory.defaultsFor(button).hint(labelButton.length() * 10, SWT.DEFAULT)
+				.align(SWT.END, SWT.BEGINNING).applyTo(button);
 		GridData gd = GridDataFactory.defaultsFor(control).create();
-		gd.heightHint = Math.min(50, gd.heightHint);
-		gd.widthHint = gd.widthHint - 80;
+		gd.widthHint = gd.widthHint - labelButton.length() * 10;
 
 		control.setLayoutData(gd);
-
 		return button;
 	}