1 files changed, 94 insertions, 0 deletions
diff --git a/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/Pane.java b/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/Pane.java
new file mode 100644
index 000000000..be0612dca
--- /dev/null
+++ b/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/Pane.java
@@ -0,0 +1,94 @@
+/*
+ * Licensed Materials - Property of IBM,
+ * WebSphere Studio Workbench
+ * (c) Copyright IBM Corp 2001
+ */
+package org.eclipse.compare.internal;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.ToolBar;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.graphics.Image;
+
+import org.eclipse.swt.custom.CLabel;
+import org.eclipse.swt.custom.ViewForm;
+
+import org.eclipse.jface.action.ToolBarManager;
+
+/**
+ * A Pane is a convenience class which installs a CustomLabel and a Toolbar (on demand).
+ * Double clicking onto the Pane's title bar maximizes the Pane 
+ * to the size of an enclosing Splitter (if there is one).
+ * If more Splitters are nested maximizing walks up and maximizes to the outermost Splitter.
+ */
+public class Pane extends ViewForm {
+	
+	private ToolBarManager fToolBarManager;
+
+	public Pane(Composite parent, int style) {
+		super(parent, SWT.BORDER);
+		
+		marginWidth= 0;
+		marginHeight= 0;
+		
+		CLabel label= new CLabel(this, SWT.NONE);
+		setTopLeft(label);
+		
+		MouseAdapter ml= new MouseAdapter() {
+			public void mouseDoubleClick(MouseEvent e) {
+				Control parent= getParent();
+				if (parent instanceof Splitter)
+					((Splitter)parent).setMaximizedControl(Pane.this);
+			}
+		};	
+				
+		addMouseListener(ml);
+		label.addMouseListener(ml);	
+	}
+	
+	public void setText(String label) {
+		CLabel cl= (CLabel) getTopLeft();
+		cl.setText(label);		
+	}
+	
+	public void setImage(Image image) {
+		CLabel cl= (CLabel) getTopLeft();
+		cl.setImage(image);
+	}
+	
+	/**
+	 * Returns a <code>ToolBarManager</code> if the given parent is a <code>ViewerPane</code>.
+	 */
+	public static ToolBarManager getToolBarManager(Composite parent) {
+		if (parent instanceof Pane) {
+			Pane pane= (Pane) parent;
+			return pane.getToolBarManager();
+		}
+		return null;
+	}
+
+	/**
+	 * Clear tool items in <code>ViewerPane</code>'s control bar.
+	 */
+	public static void clearToolBar(Composite parent) {
+		ToolBarManager tbm= getToolBarManager(parent);
+		if (tbm != null) {
+			tbm.removeAll();
+			tbm.update(true);
+		}
+	}
+	
+	//---- private stuff
+	
+	private ToolBarManager getToolBarManager() {
+		if (fToolBarManager == null) {
+			ToolBar tb= new ToolBar(this, SWT.FLAT);
+			setTopCenter(tb);
+			fToolBarManager= new ToolBarManager(tb);
+		}
+		return fToolBarManager;
+	}
+}