Android Open Source - RadaeePDF-B4A H Writing

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License

The source code is released under:

Apache License

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Java Source Code

package com.radaee.pdf;
/*w  w w.j av a  2  s  .  co m*/
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;

/**
class for hand-writing ink.<br/>
not same to Ink class, this class has max line width and min line width.<br/>
so the line in HWriting will not in same width.
@author Radaee
@version 1.1
*/
public class HWriting
{
  protected int hand = 0;
  private Bitmap m_bmp;
  private static native int create( int w, int h, float min_w, float max_w, int clr_r, int clr_g, int clr_b );
  private static native void onDown( int hand, float x, float y );
  private static native void onMove( int hand, float x, float y );
  private static native void onUp( int hand, float x, float y );
  private static native void onDraw( int hand, int bmp );
  private static native void destroy( int hand );
  /**
   * constructor for hand-writing.
   * @param w width of cache.
   * @param h height of cache.
   * @param min_w min-width for ink width.
   * @param max_w max-width for ink width.
   * @param clr_r r values of ink color [0-255]
   * @param clr_g g values of ink color [0-255]
   * @param clr_b b values of ink color [0-255]
   */
  public HWriting( int w, int h, float min_w, float max_w, int clr_r, int clr_g, int clr_b )
  {
    hand = create( w, h, min_w, max_w, clr_r, clr_g, clr_b );
    m_bmp = Bitmap.createBitmap(w, h, Config.ARGB_8888);
  }
  /**
   * destroy and free memory.
   */
  public void Destroy()
  {
    destroy( hand );
    hand = 0;
    m_bmp.recycle();
  }
  /**
   * call when click down
   * @param x x value of point in this object.
   * @param y y value of point in this object.
   */
  public void OnDown( float x, float y )
  {
    onDown( hand, x, y );
  }
  /**
   * call when moving
   * @param x x value of point in this object.
   * @param y y value of point in this object.
   */
  public void OnMove( float x, float y )
  {
    onMove( hand, x, y );
  }
  /**
   * call when click up
   * @param x x value of point in this object.
   * @param y y value of point in this object.
   */
  public void OnUp( float x, float y )
  {
    onUp( hand, x, y );
  }
  /**
   * draw to locked bitmap handle.
   * @param bmp, obtained by Global.lockBitmap()
   */
  public void OnDraw( int bmp )
  {
    onDraw( hand, bmp );
  }
}

Java Source Code List