Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * 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.
 */

import android.graphics.Rect;
import android.graphics.RectF;

public class Main {
    private static Rect calculateTapArea(float x, float y, int width, int height, float coefficient) {
        float focusAreaSize = 200;
        int areaSize = Float.valueOf(focusAreaSize * coefficient).intValue();
        int centerX = (int) ((x / width) * 2000 - 1000);
        int centerY = (int) ((y / height) * 2000 - 1000);
        int left = clamp(centerX - (areaSize / 2), -1000, 1000);
        int top = clamp(centerY - (areaSize / 2), -1000, 1000);
        RectF rectF = new RectF(left, top, left + areaSize, top + areaSize);
        return new Rect(Math.round(rectF.left), Math.round(rectF.top), Math.round(rectF.right),
                Math.round(rectF.bottom));
    }

    private static int clamp(int x, int min, int max) {
        if (x > max) {
            return max;
        }
        if (x < min) {
            return min;
        }
        return x;
    }
}