Android Open Source - codemap Zoomable Absolute Layout

• Back to Development/tool  ↑

From Project

Back to project page codemap.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.hdweiss.codemap.util;
/*from   w  w w.  j a v a  2 s  . co  m*/
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;

public class ZoomableAbsoluteLayout extends AbsoluteLayout {

  private float mScaleFactor = 1;

  public ZoomableAbsoluteLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
  }
  
  @Override
  public boolean dispatchTouchEvent(MotionEvent event) {
    float translatedX = event.getX() / this.mScaleFactor;
    float translatedY = event.getY() / this.mScaleFactor;
    Log.d("CodeMap",
        "dispatchTouchEvent(): " + (int) event.getX() + ":" + (int) event.getY()
            + "->" + (int) translatedX + ":" + (int) translatedY + " @ " + getScrollX() + ":" + getScrollY());
    event.setLocation(translatedX, translatedY);
    return super.dispatchTouchEvent(event);
  }

  public float getScaleFactor() {
    return this.mScaleFactor;
  }
  
  public void setScaleFactor(float scaleFactor, CodeMapPoint pivot) {
    this.mScaleFactor = scaleFactor;
    invalidate();
  }
  
  protected void dispatchDraw(Canvas canvas) {
      canvas.save();
    //  canvas.translate(mPosX, mPosY);
     // canvas.scale(mScaleFactor, mScaleFactor, mFocusX, mFocusY);
      canvas.scale(mScaleFactor, mScaleFactor);
      super.dispatchDraw(canvas);
      canvas.restore();
  }
}

Java Source Code List

• Back to Development/tool  ↑