孙向锦 / VoteC5

package com.sunvote.util;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader.TileMode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
/**
 * Created by Elvis on 2017/8/15 15:03
 * Email:Eluis@psunsky.com
 * 版权所有：长沙中天电子设计开发有限公司
 * Description: 工具包
 */
public final class ImageTools {

	/**
	 * Transfer drawable to bitmap
	 * 
	 * @param drawable
	 * @return
	 */
	public static Bitmap drawableToBitmap(Drawable drawable) {
		int w = drawable.getIntrinsicWidth();
		int h = drawable.getIntrinsicHeight();

		Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Config.ARGB_8888
				: Config.RGB_565;
		Bitmap bitmap = Bitmap.createBitmap(w, h, config);
		Canvas canvas = new Canvas(bitmap);
		drawable.setBounds(0, 0, w, h);
		drawable.draw(canvas);
		return bitmap;
	}

	/**
	 * Bitmap to drawable
	 * 
	 * @param bitmap
	 * @return
	 */
	public static Drawable bitmapToDrawable(Bitmap bitmap) {
		return new BitmapDrawable(bitmap);
	}

	/**
	 * Input stream to bitmap
	 * 
	 * @param inputStream
	 * @return
	 * @throws Exception
	 */
	public static Bitmap inputStreamToBitmap(InputStream inputStream)
			throws Exception {
		return BitmapFactory.decodeStream(inputStream);
	}

	/**
	 * Byte transfer to bitmap
	 * 
	 * @param byteArray
	 * @return
	 */
	public static Bitmap byteToBitmap(byte[] byteArray) {
		if (byteArray.length != 0) {
			return BitmapFactory
					.decodeByteArray(byteArray, 0, byteArray.length);
		} else {
			return null;
		}
	}

	/**
	 * Byte transfer to drawable
	 * 
	 * @param byteArray
	 * @return
	 */
	public static Drawable byteToDrawable(byte[] byteArray) {
		ByteArrayInputStream ins = null;
		if (byteArray != null) {
			ins = new ByteArrayInputStream(byteArray);
		}
		return Drawable.createFromStream(ins, null);
	}

	/**
	 * Bitmap transfer to bytes
	 * 
	 * @param bm
	 * @return
	 */
	public static byte[] bitmapToBytes(Bitmap bm) {
		byte[] bytes = null;
		if (bm != null) {
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
			bytes = baos.toByteArray();
		}
		return bytes;
	}

	/**
	 * Drawable transfer to bytes
	 * 
	 * @param drawable
	 * @return
	 */
	public static byte[] drawableToBytes(Drawable drawable) {
		BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
		Bitmap bitmap = bitmapDrawable.getBitmap();
		byte[] bytes = bitmapToBytes(bitmap);
		;
		return bytes;
	}

	/**
	 * Base64 to byte[]
//	 */
//	public static byte[] base64ToBytes(String base64) throws IOException {
//		byte[] bytes = Base64.decode(base64);
//		return bytes;
//	}
//
//	/**
//	 * Byte[] to base64
//	 */
//	public static String bytesTobase64(byte[] bytes) {
//		String base64 = Base64.encode(bytes);
//		return base64;
//	}

	/**
	 * Create reflection images
	 * 
	 * @param bitmap
	 * @return
	 */
	public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
		final int reflectionGap = 4;
		int w = bitmap.getWidth();
		int h = bitmap.getHeight();

		Matrix matrix = new Matrix();
		matrix.preScale(1, -1);

		Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, h / 2, w,
				h / 2, matrix, false);

		Bitmap bitmapWithReflection = Bitmap.createBitmap(w, (h + h / 2),
				Config.ARGB_8888);

		Canvas canvas = new Canvas(bitmapWithReflection);
		canvas.drawBitmap(bitmap, 0, 0, null);
		Paint deafalutPaint = new Paint();
		canvas.drawRect(0, h, w, h + reflectionGap, deafalutPaint);

		canvas.drawBitmap(reflectionImage, 0, h + reflectionGap, null);

		Paint paint = new Paint();
		LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
				bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff,
				0x00ffffff, TileMode.CLAMP);
		paint.setShader(shader);
		// Set the Transfer mode to be porter duff and destination in
		paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
		// Draw a rectangle using the paint with our linear gradient
		canvas.drawRect(0, h, w, bitmapWithReflection.getHeight()
				+ reflectionGap, paint);

		return bitmapWithReflection;
	}

	/**
	 * Get rounded corner images
	 * 
	 * @param bitmap
	 * @param roundPx
	 *            5 10
	 * @return
	 */
	public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
		int w = bitmap.getWidth();
		int h = bitmap.getHeight();
		Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
		Canvas canvas = new Canvas(output);
		final int color = 0xff424242;
		final Paint paint = new Paint();
		final Rect rect = new Rect(0, 0, w, h);
		final RectF rectF = new RectF(rect);
		paint.setAntiAlias(true);
		canvas.drawARGB(0, 0, 0, 0);
		paint.setColor(color);
		canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
		paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
		canvas.drawBitmap(bitmap, rect, rect, paint);

		return output;
	}

	/**
	 * Resize the bitmap
	 * 
	 * @param bitmap
	 * @param width
	 * @param height
	 * @return
	 */
	public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
		int w = bitmap.getWidth();
		int h = bitmap.getHeight();
		Matrix matrix = new Matrix();
		float scaleWidth = ((float) width / w);
		float scaleHeight = ((float) height / h);
		matrix.postScale(scaleWidth, scaleHeight);
		Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
		return newbmp;
	}

	/**
	 * Resize the drawable
	 * @param drawable
	 * @param w
	 * @param h
	 * @return
	 */
	public static Drawable zoomDrawable(Drawable drawable, int w, int h) {
		int width = drawable.getIntrinsicWidth();
		int height = drawable.getIntrinsicHeight();
		Bitmap oldbmp = drawableToBitmap(drawable);
		Matrix matrix = new Matrix();
		float sx = ((float) w / width);
		float sy = ((float) h / height);
		matrix.postScale(sx, sy);
		Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height,
				matrix, true);
		return new BitmapDrawable(newbmp);
	}
	
	/**
	 * Get images from SD card by path and the name of image
	 * @param photoName
	 * @return
	 */
	public static Bitmap getPhotoFromSDCard(String path,String photoName){
		Bitmap photoBitmap = BitmapFactory.decodeFile(path + "/" +photoName +".png");
		if (photoBitmap == null) {
			return null;
		}else {
			return photoBitmap;
		}
	}
	
	/**
	 * Check the SD card 
	 * @return
	 */
	public static boolean checkSDCardAvailable(){
		return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
	}
	
	/**
	 * Get image from SD card by path and the name of image
	 * @param fileName
	 * @return
	 */
	public static boolean findPhotoFromSDCard(String path,String photoName){
		boolean flag = false;
		
		if (checkSDCardAvailable()) {
			File dir = new File(path);
			if (dir.exists()) {
				File folders = new File(path);
				File photoFile[] = folders.listFiles();
				for (int i = 0; i < photoFile.length; i++) {
					String fileName = photoFile[i].getName().split("\\.")[0];
					if (fileName.equals(photoName)) {
						flag = true;
					}
				}
			}else {
				flag = false;
			}
//			File file = new File(path + "/" + photoName  + ".jpg" );
//			if (file.exists()) {
//				flag = true;
//			}else {
//				flag = false;
//			}
			
		}else {
			flag = false;
		}
		return flag;
	}
	
	/**
	 * Save image to the SD card 
	 * @param photoBitmap
	 * @param photoName
	 * @param path
	 */
	public static void savePhotoToSDCard(Bitmap photoBitmap,String path,String photoName){
		if (checkSDCardAvailable()) {
			File dir = new File(path);
			if (!dir.exists()){
				dir.mkdirs();
			}
			
			File photoFile = new File(path , photoName + ".png");
			FileOutputStream fileOutputStream = null;
			try {
				fileOutputStream = new FileOutputStream(photoFile);
				if (photoBitmap != null) {
					if (photoBitmap.compress(Bitmap.CompressFormat.PNG, 100, fileOutputStream)) {
						fileOutputStream.flush();
//						fileOutputStream.close();
					}
				}
			} catch (FileNotFoundException e) {
				photoFile.delete();
				e.printStackTrace();
			} catch (IOException e) {
				photoFile.delete();
				e.printStackTrace();
			} finally{
				try {
					fileOutputStream.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		} 
	}
	
	/**
	 * Delete the image from SD card
	 * @param context
	 * @param path
	 * file:///sdcard/temp.jpg
	 */
	public static void deleteAllPhoto(String path){
		if (checkSDCardAvailable()) {
			File folder = new File(path);
			File[] files = folder.listFiles();
			for (int i = 0; i < files.length; i++) {
				files[i].delete();
			}
		}
	}
	
	public static void deletePhotoAtPathAndName(String path,String fileName){
		if (checkSDCardAvailable()) {
			File folder = new File(path);
			File[] files = folder.listFiles();
			for (int i = 0; i < files.length; i++) {
				System.out.println(files[i].getName());
				if (files[i].getName().equals(fileName)) {
					files[i].delete();
				}
			}
		}
	}

}