1 files changed, 156 insertions, 0 deletions
diff --git a/autotools/org.eclipse.linuxtools.cdt.autotools.ui/src/org/eclipse/linuxtools/internal/cdt/autotools/ui/editors/automake/MessageLine.java b/autotools/org.eclipse.linuxtools.cdt.autotools.ui/src/org/eclipse/linuxtools/internal/cdt/autotools/ui/editors/automake/MessageLine.java
new file mode 100644
index 0000000000..91d75d3291
--- /dev/null
+++ b/autotools/org.eclipse.linuxtools.cdt.autotools.ui/src/org/eclipse/linuxtools/internal/cdt/autotools/ui/editors/automake/MessageLine.java
@@ -0,0 +1,156 @@
+/*******************************************************************************
+ * Copyright (c) 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     QNX Software System
+ *******************************************************************************/
+package org.eclipse.linuxtools.internal.cdt.autotools.ui.editors.automake;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.CLabel;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.RGB;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+
+/**
+ * A message line. It distinguishs between "normal" messages and errors. 
+ * Setting an error message hides a currently displayed message until 
+ * <code>clearErrorMessage</code> is called.
+ */
+public class MessageLine {
+
+	private String fMessageText;
+	private String fErrorText;
+	private CLabel clabel;
+
+	private Color fDefaultColor;
+	private RGB fErrorRGB;
+	protected Color fErrorColor;
+
+	private static RGB fgErrorRGB= new RGB(200, 0, 0);
+
+	/**
+	 * Clears the currently displayed error message and redisplayes
+	 * the message which was active before the error message was set.
+	 */
+	public void clearErrorMessage() {
+		setErrorMessage(null);
+	}
+	/**
+	 * Clears the currently displayed message.
+	 */
+	public void clearMessage() {
+		setMessage(null);
+	}
+	/**
+	 * Get the currently displayed error text.
+	 * @return The error message. If no error message is displayed <code>null</code> is returned.
+	 */
+	public String getErrorMessage() {
+		return fErrorText;
+	}
+	/**
+	 * Get the currently displayed message.
+	 * @return The message. If no message is displayed <code>null<code> is returned.
+	 */
+	public String getMessage() {
+		return fMessageText;
+	}
+	/**
+	 * Creates a new message line as a child of the parent and with the given SWT stylebits.
+	 * Error message will be shown with in the given rgb color.
+	 */
+	public MessageLine(Composite parent, int style, RGB errorRGB) {
+		clabel = new CLabel(parent, style);
+		fDefaultColor= clabel.getForeground();
+		fErrorRGB= errorRGB;
+	}
+	/**
+	 * Creates a new message line as a child of the parent and with the given SWT stylebits.
+	 * Error message will be shown with in the rgb color 200,0,0.
+	 */
+	public MessageLine(Composite parent, int style) {
+		clabel = new CLabel(parent, style);
+		fDefaultColor= clabel.getForeground();
+		fErrorRGB= fgErrorRGB;
+	}
+	/**
+	 * Creates a new message line as a child of the given parent.
+	 * Error message will be shown with in the rgb color 200,0,0.
+	 */
+	public MessageLine(Composite parent) {
+		this(parent, SWT.LEFT);
+	}
+	/**
+	 * Sets the default error color used by all message lines.
+	 * Note: a call to this method only affects newly created MessageLines not existing ones. 
+	 */
+	public static void setErrorColor(RGB color) {
+		fgErrorRGB= color;
+	}
+	/**
+	     * Display the given error message. A currently displayed message
+	     * is saved and will be redisplayed when the error message is cleared.
+	     */
+	public void setErrorMessage(String message) {
+		fErrorText= message;
+
+		if (message == null) {
+			setMessage(fMessageText);
+		} else {
+			if (fErrorColor == null) {
+				fErrorColor= new Color(clabel.getDisplay(), fErrorRGB);
+				clabel.addDisposeListener(new DisposeListener() {
+					public void widgetDisposed(DisposeEvent e) {
+						fErrorColor.dispose();
+					}
+				});
+			}
+			clabel.setForeground(fErrorColor);
+			clabel.setText(message);
+		}
+	}
+	/**
+	     * Set the message text. If the message line currently displays an error,
+	     * the message is stored and will be shown after a call to clearErrorMessage
+	     */
+	public void setMessage(String message) {
+		fMessageText= message;
+		if (message == null)
+			message= ""; //$NON-NLS-1$
+		if (fErrorText == null) {
+			clabel.setForeground(fDefaultColor);
+			clabel.setText(message);
+		}
+	}
+	
+	/**
+	 * @see org.eclipse.swt.custom.CLabel#isDisposed()
+	 */
+	public boolean isDisposed() {
+		return clabel.isDisposed();
+	}
+	
+	/**
+	 * @see org.eclipse.swt.custom.CLabel#setAlignment(int)
+	 */
+	public void setAlignment(int left) {
+		clabel.setAlignment(left);
+	}
+	
+	/**
+	 * @see org.eclipse.swt.widgets.Control#setLayoutData(Object)
+	 */
+	public void setLayoutData(GridData gridData) {
+		clabel.setLayoutData(gridData);
+	}
+	
+}