package com.gyarmy.paintpic;



import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;



import android.media.MediaScannerConnection;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.app.Activity;

import android.content.Intent;

import android.graphics.Bitmap;

import android.graphics.Bitmap.CompressFormat;

import android.graphics.Bitmap.Config;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.util.Log;

import android.view.Menu;

import android.view.MenuItem;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.View.OnTouchListener;

import android.view.ViewGroup.LayoutParams;

import android.widget.ImageView;

import android.widget.SeekBar;

import android.widget.SeekBar.OnSeekBarChangeListener;



public class MainActivity extends Activity implements OnClickListener, OnSeekBarChangeListener, OnTouchListener {

	private static final String TAG = "菜单栏.";

	private View view_red;

	private View view_green;

	private View view_blue;

	private View view_yellow;

	private View view_pink;

	private SeekBar sb_bar;

	private ImageView iv;

	

	private Bitmap bitmap;

	private Canvas canvas;

	private Paint paint;

	

	float startX = 0;

	float startY = 0;

	int paintSize =1;

	

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        view_red = findViewById(R.id.view_red);

        view_green = findViewById(R.id.view_green);

        view_blue = findViewById(R.id.view_blue);

        view_yellow = findViewById(R.id.view_yellow);

        view_pink = findViewById(R.id.view_pink);

        

        sb_bar = (SeekBar) findViewById(R.id.skb_size);

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

        

        

        view_red.setOnClickListener(this);

        view_green.setOnClickListener(this);

        view_blue.setOnClickListener(this);

        view_yellow.setOnClickListener(this);

        view_pink.setOnClickListener(this);

        

        sb_bar.setOnSeekBarChangeListener(this);

        

        iv.setOnTouchListener(this);

        

        //绘制图片

        bitmap = Bitmap.createBitmap(480, 660, Config.ARGB_8888);

        canvas = new Canvas(bitmap);

        canvas.drawColor(Color.WHITE);

        paint = new Paint();

        

    }



    //选取颜色

	@Override

	public void onClick(View v) {

		// TODO Auto-generated method stub

		

		if(v == view_red ){

			paint.setColor(Color.RED);

		}else if(v == view_green){

			paint.setColor(Color.GREEN);

		}else if(v == view_blue){

			paint.setColor(Color.BLUE);

		}else if(v == view_yellow){

			paint.setColor(Color.YELLOW);

		}else if(v == view_pink){

			paint.setColor(Color.argb(255, 255, 80, 255));

		}

		

		

	}



	//画笔粗细	

	@Override

	public void onProgressChanged(SeekBar seekBar, int progress,

			boolean fromUser) {

		// TODO Auto-generated method stub

		paintSize = progress;

		

	}





	@Override

	public void onStartTrackingTouch(SeekBar seekBar) {

		// TODO Auto-generated method stub

		

	}





	@Override

	public void onStopTrackingTouch(SeekBar seekBar) {

		// TODO Auto-generated method stub

		paint.setStrokeWidth(paintSize);

		paint.setAntiAlias(true);

	}

	

	

	//绘画

	@Override

	public boolean onTouch(View v, MotionEvent event) {

		// TODO Auto-generated method stub

		

		switch (event.getAction()) {

		case MotionEvent.ACTION_DOWN:

			startX = event.getX();

			startY = event.getY();

			

			break;

			

		case MotionEvent.ACTION_MOVE:

			float endX = event.getX();

			float endY = event.getY();

			canvas.drawLine(startX, startY, endX, endY, paint);

			iv.setImageBitmap(bitmap);

			startX = endX;

			startY = endY;

			

			break;

			

		case MotionEvent.ACTION_UP:

			

			break;

			

		default:

			break;

		}

		

		//显示数据

		return true;

	}

	

	@Override

	public boolean onCreateOptionsMenu(Menu menu) {

		// TODO Auto-generated method stub

		//菜单

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

		

		return super.onCreateOptionsMenu(menu);

	}

	

	

	@Override

	public boolean onMenuItemSelected(int featureId, MenuItem item) {

		// TODO Auto-generated method stub

		

		int itemId = item.getItemId();

		

		switch (itemId) {

		case R.id.item_save:

			Log.d(TAG, " - 按钮保存了");

			//保存图片

			File file = new File(Environment.getExternalStorageDirectory(), System.currentTimeMillis()+".jpg");

			Log.d(TAG, Environment.getExternalStorageDirectory().toString()+System.currentTimeMillis()+".jpg");

			FileOutputStream  fos = null;

			

			try {

				fos = new FileOutputStream(file);

				bitmap.compress(CompressFormat.JPEG, 100, fos);

			} catch (FileNotFoundException e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}finally{

				if(fos!=null)

				{

					try {

						fos.close();

						fos=null;

					} catch (IOException e) {

						// TODO Auto-generated catch block

						e.printStackTrace();

					}

					

				}

				

				//广播

				//异常

				/*

				Intent intent = new Intent(Intent.ACTION_MEDIA_MOUNTED);

				intent.setData(Uri.parse(Environment.getExternalStorageDirectory().toString()));

				sendBroadcast(intent);

				*/

				

				//无效

				//sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse(Environment.getExternalStorageDirectory()+"")));  

				

				MediaScannerConnection.scanFile(this, new String[]{Environment.getExternalStorageDirectory()+""}, null, null);

				

				

			}

			

			

			

			

			

			

			

			break;



		default:

			break;

		}

		

		

		

		

		return super.onMenuItemSelected(featureId, item);

	}

	





    

}