Path, lineTo, moveTo, Coordinates, managed

plusminus · by **plusminus** » Sun Oct 26, 2008 3:46 pm

I just came along this snippet, as I had a couple of problems, where I was filling a couple of Paths in a loop, and could just hardly ensure, that a moveTo was called before a lineTo was called. So this is my 'managed' solution that extends Path to handle that problem.

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import android.graphics.Path;
 
import android.graphics.Point;
 
/**
 
 * ManagedPath ensures that <code>moveTo</code> gets called before <code>lineTo</code> gets called for the first time.<br />
 
 * Its only 'managed' for lines!
 
 * <b>Info:</b> Where you had to decide whether to call moveTo or lineTo before, now just call lineTo.
 
 * @author Nicolas Gramlich
 
 */
 
public class ManagedLinePath extends Path {
 
        // ===========================================================
 
        // Fields
 
        // ===========================================================
 
        protected boolean mDidMoveTo = false;
 
        // ===========================================================
 
        // Methods from SuperClass/Interfaces
 
        // ===========================================================
 
        public void lineTo(final Point p) {
 
                this.lineTo(p.x, p.y);
 
        }
 
        @Override
 
        public void lineTo(float x, float y) {
 
                if(!this.mDidMoveTo)
 
                        this.moveTo(x, y);
 
                else
 
                        super.lineTo(x, y);
 
        }
 
        @Deprecated
 
        public void moveTo(final Point p) {
 
                this.moveTo(p.x, p.y);
 
        }
 
        @Deprecated
 
        @Override
 
        public void moveTo(float x, float y) {
 
                this.mDidMoveTo = true;
 
                super.moveTo(x, y);
 
        }
 
}
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Path, lineTo, moveTo, Coordinates, managed

Path, lineTo, moveTo, Coordinates, managed

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