Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Random;
import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

public class Main {
    private static final float PHOTO_BORDER_WIDTH = 3.0f;
    private static final float ROTATION_ANGLE_MIN = 2.5f;
    private static final float ROTATION_ANGLE_EXTRA = 5.5f;
    private static final Random sRandom = new Random();
    private static final Paint sPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
    private static final Paint sStrokePaint = new Paint(Paint.ANTI_ALIAS_FLAG);

    public static Bitmap rotateAndFrame(Bitmap bitmap) {
        final boolean positive = sRandom.nextFloat() >= 0.5f;
        final float angle = (ROTATION_ANGLE_MIN + sRandom.nextFloat() * ROTATION_ANGLE_EXTRA)
                * (positive ? 1.0f : -1.0f);
        final double radAngle = Math.toRadians(angle);

        final int bitmapWidth = bitmap.getWidth();
        final int bitmapHeight = bitmap.getHeight();

        final double cosAngle = Math.abs(Math.cos(radAngle));
        final double sinAngle = Math.abs(Math.sin(radAngle));

        final int strokedWidth = (int) (bitmapWidth + 2 * PHOTO_BORDER_WIDTH);
        final int strokedHeight = (int) (bitmapHeight + 2 * PHOTO_BORDER_WIDTH);

        final int width = (int) (strokedHeight * sinAngle + strokedWidth * cosAngle);
        final int height = (int) (strokedWidth * sinAngle + strokedHeight * cosAngle);

        final float x = (width - bitmapWidth) / 2.0f;
        final float y = (height - bitmapHeight) / 2.0f;

        final Bitmap decored = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        final Canvas canvas = new Canvas(decored);

        canvas.rotate(angle, width / 2.0f, height / 2.0f);
        canvas.drawBitmap(bitmap, x, y, sPaint);
        canvas.drawRect(x, y, x + bitmapWidth, y + bitmapHeight, sStrokePaint);

        return decored;
    }
}