com.manning.androidhacks.hack007.view.Rectangle.java Source code

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Here is the source code for com.manning.androidhacks.hack007.view.Rectangle.java

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/*
50AH-code
=========
    
50 Android Hacks (http://manning.com/sessa/) book source code
    
    
Copyright (c) 2012 Manning
    
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
    
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
    
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
    
    
*/

/*******************************************************************************
 * Copyright (c) 2012 Manning
 * See the file license.txt for copying permission.
 ******************************************************************************/
package com.manning.androidhacks.hack007.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.view.View;

public class Rectangle extends View {
    public static final int MAX_SIZE = 40;
    private static final int ALPHA = 255;
    private int mCoordX = 0;
    private int mCoordY = 0;
    private int mRealSize = 40;
    private int mSpeedX = 3;
    private int mSpeedY = 3;

    private boolean goRight = true;
    private boolean goDown = true;
    private DrawView mDrawView;

    private Paint mInnerPaint;
    private RectF mDrawRect;

    public Rectangle(Context context, DrawView drawView) {
        super(context);
        mDrawView = drawView;

        mInnerPaint = new Paint();

        mDrawRect = new RectF();

        /* Red is default */
        mInnerPaint.setARGB(ALPHA, 255, 0, 0);
        mInnerPaint.setAntiAlias(true);
    }

    public void setARGB(int a, int r, int g, int b) {
        mInnerPaint.setARGB(a, r, g, b);
    }

    public void setX(int newValue) {
        mCoordX = newValue;
    }

    public int getX() {
        return mCoordX;
    }

    public void setY(int newValue) {
        mCoordY = newValue;
    }

    public int getY() {
        return mCoordY;
    }

    public void move() {
        moveTo(mSpeedX, mSpeedY);
    }

    private void moveTo(int goX, int goY) {

        // check the borders, and set the direction if a border has reached
        if (mCoordX > (mDrawView.width - MAX_SIZE)) {
            goRight = false;
        }

        if (mCoordX < 0) {
            goRight = true;
        }

        if (mCoordY > (mDrawView.height - MAX_SIZE)) {
            goDown = false;
        }
        if (mCoordY < 0) {
            goDown = true;
        }

        // move the x and y
        if (goRight) {
            mCoordX += goX;
        } else {
            mCoordX -= goX;
        }
        if (goDown) {
            mCoordY += goY;
        } else {
            mCoordY -= goY;
        }

    }

    public int getSpeedX() {
        return mSpeedX;
    }

    public void setSpeedX(int speedX) {
        mSpeedX = speedX;
    }

    public int getmSpeedY() {
        return mSpeedY;
    }

    public void setSpeedY(int speedY) {
        mSpeedY = speedY;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        mDrawRect.set(mCoordX, mCoordY, mCoordX + mRealSize, mCoordY + mRealSize);
        canvas.drawRoundRect(mDrawRect, 0, 0, mInnerPaint);

    }

    public void setSize(int newSize) {
        mRealSize = newSize;
    }

    public int getSize() {
        return mRealSize;
    }
}