gecko/mobile/android/base/gfx/VirtualLayer.java
2012-02-03 23:31:05 -08:00

82 lines
2.8 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Android code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009-2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Patrick Walton <pcwalton@mozilla.com>
* Chris Lord <chrislord.net@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.gecko.gfx;
import android.graphics.Point;
import javax.microedition.khronos.opengles.GL10;
public class VirtualLayer extends Layer {
private Listener mListener;
private IntSize mSize;
public void setListener(Listener listener) {
mListener = listener;
}
@Override
public void draw(RenderContext context) {
// No-op.
}
@Override
public IntSize getSize() {
return mSize;
}
public void setSize(IntSize size) {
mSize = size;
}
@Override
protected boolean performUpdates(GL10 gl, RenderContext context) {
boolean dimensionsChanged = dimensionChangesPending();
boolean result = super.performUpdates(gl, context);
if (dimensionsChanged && mListener != null) {
mListener.dimensionsChanged(getOrigin(), getResolution());
}
return result;
}
public interface Listener {
void dimensionsChanged(Point newOrigin, float newResolution);
}
}