/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.backends.android.surfaceview;
import android.view.View;
/** This {@link ResolutionStrategy} will maintain a given aspect ratio and stretch the GLSurfaceView to the maximum available
* screen size.
*
* @author christoph widulle */
public class RatioResolutionStrategy implements ResolutionStrategy {
private final float ratio;
public RatioResolutionStrategy (float ratio) {
this.ratio = ratio;
}
public RatioResolutionStrategy (final float width, final float height) {
this.ratio = width / height;
}
@Override
public MeasuredDimension calcMeasures (int widthMeasureSpec, int heightMeasureSpec) {
final int specWidth = View.MeasureSpec.getSize(widthMeasureSpec);
final int specHeight = View.MeasureSpec.getSize(heightMeasureSpec);
final float desiredRatio = ratio;
final float realRatio = (float)specWidth / specHeight;
int width;
int height;
if (realRatio < desiredRatio) {
width = specWidth;
height = Math.round(width / desiredRatio);
} else {
height = specHeight;
width = Math.round(height * desiredRatio);
}
return new MeasuredDimension(width, height);
}
}