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/*******************************************************************************
* Copyright (c) 2000, 2008 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
*******************************************************************************/
package org.eclipse.jface.text;
import org.eclipse.swt.graphics.Rectangle;
/**
* Extension interface for {@link org.eclipse.jface.text.IInformationControl}.
* Adds API which allows to get this information control's bounds and introduces
* the concept of persistent size and location by introducing predicates for
* whether the information control supports restoring of size and location.
* <p>
* Note: An information control which implements this interface can ignore calls
* to
* {@link org.eclipse.jface.text.IInformationControl#setSizeConstraints(int, int)}
* or use it as hint for its very first appearance.
* </p>
*
* @see org.eclipse.jface.text.IInformationControl
* @since 3.0
*/
public interface IInformationControlExtension3 {
/**
* Returns a rectangle describing the receiver's size and location
* relative to its parent (or its display if its parent is null).
* <p>
* Note: If the receiver is already disposed then this methods must
* return the last valid location and size.
* </p>
*
* @return the receiver's bounding rectangle
*/
Rectangle getBounds();
/**
* Computes the trim for this control. The trim is the space around the
* information control's actual content area. It includes all borders of the
* control and other static content placed around the content area (e.g. a
* toolbar).
*
* @return The receiver's trim. <code>x</code> and <code>y</code> denote
* the upper left corner of the trimming relative to this control's
* location i.e. this will most likely be negative values.
* <code>width</code> and <code>height</code> represent the
* border sizes (the sum of the horizontal and vertical trimmings,
* respectively).
*/
Rectangle computeTrim();
/**
* Tells whether this control allows to restore the previously
* used size.
* <p>
* Note: This is not a static property - it can change during the
* lifetime of this control.</p>
*
* @return <code>true</code> if restoring size is supported
*/
boolean restoresSize();
/**
* Tells whether this control allows to restore the previously
* used location.
* <p>
* Note: This is not a static property - it can change during the
* lifetime of this control.</p>
*
* @return <code>true</code> if restoring location is supported
*/
boolean restoresLocation();
}
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