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/* -*- 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>
*
* 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 org.mozilla.gecko.gfx.FloatSize;
import org.json.JSONException;
import org.json.JSONObject;
import java.lang.Math;
public class IntSize {
public final int width, height;
public IntSize(IntSize size) { width = size.width; height = size.height; }
public IntSize(int inWidth, int inHeight) { width = inWidth; height = inHeight; }
public IntSize(FloatSize size) {
width = Math.round(size.width);
height = Math.round(size.height);
}
public IntSize(JSONObject json) {
try {
width = json.getInt("width");
height = json.getInt("height");
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
public int getArea() {
return width * height;
}
public boolean equals(IntSize size) {
return ((size.width == width) && (size.height == height));
}
public boolean isPositive() {
return (width > 0 && height > 0);
}
@Override
public String toString() { return "(" + width + "," + height + ")"; }
public IntSize scale(float factor) {
return new IntSize(Math.round(width * factor),
Math.round(height * factor));
}
/* Returns the power of two that is greater than or equal to value */
public static int nextPowerOfTwo(int value) {
// code taken from http://acius2.blogspot.com/2007/11/calculating-next-power-of-2.html
if (0 == value--) {
return 1;
}
value = (value >> 1) | value;
value = (value >> 2) | value;
value = (value >> 4) | value;
value = (value >> 8) | value;
value = (value >> 16) | value;
return value + 1;
}
public IntSize nextPowerOfTwo() {
return new IntSize(nextPowerOfTwo(width), nextPowerOfTwo(height));
}
}
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