org.apache.poi.hssf.view.brush.DoubleStroke Maven / Gradle / Ivy
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package org.apache.poi.hssf.view.brush;
import java.awt.*;
/**
* This Stroke implementation applies a BasicStroke to a shape twice. If you
* draw with this Stroke, then instead of outlining the shape, you're outlining
* the outline of the shape.
*
* @author Ken Arnold, Industrious Media LLC
*/
public class DoubleStroke implements Brush {
BasicStroke stroke1, stroke2; // the two strokes to use
/**
* Creates a new double-stroke brush. This surrounds a cell with a two
* lines separated by white space between.
*
* @param width1 The width of the blank space in the middle
* @param width2 The width of the each of the two drawn strokes.
*/
public DoubleStroke(float width1, float width2) {
stroke1 = new BasicStroke(width1); // Constructor arguments specify
stroke2 = new BasicStroke(width2); // the line widths for the strokes
}
/**
* Stroke the outline.
*
* @param s The shape in which to stroke.
*
* @return The created stroke as a new shape.
*/
@Override
public Shape createStrokedShape(Shape s) {
// Use the first stroke to create an outline of the shape
Shape outline = stroke1.createStrokedShape(s);
// Use the second stroke to create an outline of that outline.
// It is this outline of the outline that will be filled in
return stroke2.createStrokedShape(outline);
}
/** {@inheritDoc} */
@Override
public float getLineWidth() {
return stroke1.getLineWidth() + 2 * stroke2.getLineWidth();
}
}