Android Open Source - HzGrapher Matrix Translator

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License

The source code is released under:

Apache License

Java Source Code

package com.handstudio.android.hzgrapherlib.util;
/*  ww  w . j a  va 2s. com*/
import android.graphics.Bitmap;

public class MatrixTranslator {
  
  private int mWidth;
  private int mHeight;
  private int mPaddingLeft;
  private int mPaddingBottom;
  
  public MatrixTranslator(int width, int height, int paddingLeft, int paddingBottom) {
    mWidth = width;
    mHeight = height;
    mPaddingLeft = paddingLeft;
    mPaddingBottom = paddingBottom;
  }
  
  public float calcX(float x){
    return (float)(x + mPaddingLeft); 
  }
  
  public float calcY(float y){
    return (float)(mHeight - (y + mPaddingBottom)); 
  }
  
  public float calcBitmapCenterX(Bitmap bitmap, float x){
    return (float)(x + mPaddingLeft - bitmap.getWidth()/2); 
  }
  
  public float calcBitmapCenterY(Bitmap bitmap, float y){
    return (float)(mHeight - (y + mPaddingBottom) -  bitmap.getHeight()/2); 
  }
}

Java Source Code List

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