package com.app.canvastest;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.util.Log;

import android.view.View;

public class MapView extends View {

	Bitmap bitmap = null;

	int[][] map_data ={

			{ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,

				7, 7, 7, 7, 7, 7, 1, 7, 7, 7, 7, 7, 7, 7, 7, 7,

				7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 0, 0, 0, 0, 0, 0,

				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

				0, 0, 0, 0 },

				{ 7, 2, 2, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2, 2, 2,

					2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

					2, 2, 2, 2, 2, 7, 2, 2, 2, 7, 2, 2, 2, 0, 0, 0,

					0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

					0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

					0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

					0, 0, 0, 0 },

					{ 7, 2, 2, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2, 2, 2,

						2, 2, 11, 2, 2, 2, 2, 8, 2, 2, 2, 2, 2, 6, 2, 2,

						2, 2, 2, 2, 2, 7, 2, 2, 2, 7, 2, 21, 21, 2, 2, 0,

						0, 0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0,

						0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

						0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

						0, 0, 0, 0 },

						{ 7, 2, 13, 13, 13, 13, 13, 7, 2, 2, 2, 2, 6, 2, 2, 8,

							6, 2, 11, 2, 2, 2, 2, 2, 8, 2, 2, 2, 11, 6, 6, 2,

							2, 2, 2, 2, 7, 7, 2, 2, 2, 7, 2, 2, 2, 2, 21, 21,

							21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2,

							2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

							0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

							0, 0, 0, 0 },

							{ 7, 2, 1, 2, 13, 2, 2, 7, 2, 2, 2, 2, 6, 2, 2, 8,

								6, 2, 2, 11, 2, 2, 2, 2, 8, 2, 2, 11, 2, 2, 2, 6,

								6, 2, 2, 2, 7, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2,

								2, 2, 21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

								2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

								0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

								0, 0, 0, 0 },

								{ 7, 2, 1, 1, 8, 2, 2, 7, 2, 2, 2, 6, 6, 2, 2, 8,

									6, 2, 2, 11, 2, 2, 2, 2, 8, 2, 11, 2, 2, 2, 2, 2,

									2, 2, 6, 2, 7, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2,

									2, 2, 2, 2, 21, 21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2,

									2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

									0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

									0, 0, 0, 0 }

	};

	public MapView(Context context) {

		super(context);

		setFocusable(true);

		try {

			bitmap = BitmapFactory.decodeResource(context.getResources(),

					R.drawable.map);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

	protected void onDraw(Canvas canvas) {

		try {

			super.onDraw(canvas);

			Paint paint = new Paint();

			// 地图总行数

			int maxRows = this.map_data.length;

			// 地图总列数

			int maxCols = this.map_data[0].length;

			for (int row = 0; row < maxRows; row++) {

				for (int col = 0; col < maxCols; col++) {

					// 小图编号

					int imgId = this.map_data[row][col];

					imgId = imgId - 1;

					// 小图在手机屏幕上的y坐标

					int y = row * 24;

					// 小图在手机屏幕上的y坐标

					int x = col * 24;

					// 小图在大图上的行数

					int smallImageRow = imgId / 7;

					// 小图在大图上的偏移量

					int offsetY = smallImageRow * 24;

					int smallImagecol = imgId % 7;

					int offsetX = smallImagecol * 24;

					// 画大图中的小图

					drawClipImage(canvas, paint, this.bitmap, x, y, offsetX,

							offsetY, 24, 24);

					Log.d("game", x + "," + y + "," + offsetX + "," + offsetY);

				}

				Log.d("game", "-------------------------");

			}

			paint.setColor(0xFFFF0000);

			canvas.drawText("aa", 50, 300, paint);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

	private void drawClipImage(Canvas canvas, Paint paint, Bitmap bitmap,

			int x, int y, int offsetX, int offsetY, int width, int height) {

		canvas.save();// 记录原来的canvas状态

		canvas.clipRect(x, y, x + width, y + height);

		canvas.drawBitmap(bitmap, x - offsetX, y - offsetY, paint);

		canvas.restore();// 恢复canvas状态

	}

}

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