package com.gyarmy.setcloth;



import android.os.Bundle;

import android.app.Activity;

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Matrix;

import android.graphics.Paint;

import android.view.Menu;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.ImageView;



public class MainActivity extends Activity implements OnTouchListener {

	

	private ImageView iv_pre;

	private ImageView iv_after;

	

	private Bitmap copyBitmap;

	

	Paint paint ;

	

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        iv_after = (ImageView) findViewById(R.id.iv_after);

        iv_pre = (ImageView) findViewById(R.id.iv_pre);

        

        iv_after.setImageResource(R.drawable.after14);

        iv_pre.setImageResource(R.drawable.pre14);

        

        iv_pre.setOnTouchListener(this);

        

        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pre14);

        copyBitmap = bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

        Canvas canvas = new Canvas(copyBitmap);

        paint = new Paint();

        //paint.setStrokeWidth(10);

        

        Matrix matrix = new Matrix();

        

        //绘制图片

        canvas.drawBitmap(bitmap, matrix, paint);

        

    }



    

    

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }







	@Override

	public boolean onTouch(View v, MotionEvent event) {

		// TODO Auto-generated method stub

		

		switch (event.getAction()) {

		case MotionEvent.ACTION_DOWN:

			System.out.println("按下.............");

			int downX = (int) (event.getX()+0.5f);

			int downY = (int) (event.getY()+0.5f);

			clearPicture(downX,downY);

			

			break;



		case MotionEvent.ACTION_MOVE:

			//设置透明色

			int	moveX = (int) (event.getX()+0.5f);

			int moveY = (int) (event.getY()+0.5f);

			clearPicture(moveX,moveY);

			

			break;

			

		case MotionEvent.ACTION_UP:

			System.out.println("UP UP UP.............");

			break;

			

		default:

			break;

		}

		

		

		

		

		return true;

	}

    

	

	

	public void clearPicture(int x,int y){

		//设置新图片

		for(int i=-10;i<=10;i++)

		{

			for(int j=-10;j<=10;j++){

				

				//要求圆形，并且不报错

				try {

					

					if((i*i+j*j)<=100){

						copyBitmap.setPixel(x+i, y+j, Color.TRANSPARENT);

					}

				} catch (Exception e) {

					// TODO: handle exception

				}

				

				

			}

			

		}

		

		

		

		iv_pre.setImageBitmap(copyBitmap);

		

	}

	

}