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/*
* Copyright (C) 2013 The CyanogenMod Project
*
* 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 org.cyanogenmod.wallpapers.photophase.utils;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.RectF;
import android.util.DisplayMetrics;
import java.util.Random;
/**
* A helper class with utilities
*/
public class Utils {
private static Random sRandom = new Random();
/**
* This method converts dp unit to equivalent device specific value in pixels.
*
* @param ctx The current context
* @param dp A value in dp (Device independent pixels) unit
* @return float A float value to represent Pixels equivalent to dp according to device
*/
public static float convertDpToPixel(Context ctx, float dp) {
Resources resources = ctx.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
return dp * (metrics.densityDpi / 160f);
}
/**
* Used to determine if the device is a tablet or not
*
* @param context The {@link Context} to use.
* @return True if the device is a tablet, false otherwise.
*/
public static final boolean isTablet(final Context context) {
final int layout = context.getResources().getConfiguration().screenLayout;
return (layout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE;
}
/**
* Method that converts a rect from a vertex data
*
* @param vertex The vertex array
* @return RectF The rect data
*/
public static RectF rectFromVertex(float[] vertex) {
RectF rect = new RectF();
rect.left = vertex[0];
rect.top = vertex[7];
rect.right = vertex[6];
rect.bottom = vertex[1];
return rect;
}
/**
* Method that returns a random number between two numbers.
*
* @param low The low number
* @param high The high number
* @return int The random number
*/
public static int getNextRandom(int low, int high) {
return low + (int)(sRandom.nextDouble() * ((high - low) + 1));
}
}
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