javafx.scene.shape.Rectangle#getArcHeight ( )源码实例Demo

/**
 * Returns an {@link IGeometry} that describes the geometric outline of the
 * given {@link Shape}, i.e. excluding the stroke.
 * <p>
 * The conversion is supported for the following {@link Shape}s:
 * <ul>
 * <li>{@link Arc}
 * <li>{@link Circle}
 * <li>{@link CubicCurve}
 * <li>{@link Ellipse}
 * <li>{@link Line}
 * <li>{@link Path}
 * <li>{@link Polygon}
 * <li>{@link Polyline}
 * <li>{@link QuadCurve}
 * <li>{@link Rectangle}
 * </ul>
 * The following {@link Shape}s cannot be converted, yet:
 * <ul>
 * <li>{@link Text}
 * <li>{@link SVGPath}
 * </ul>
 *
 * @param visual
 *            The {@link Shape} for which an {@link IGeometry} is
 *            determined.
 * @return The newly created {@link IGeometry} that best describes the
 *         geometric outline of the given {@link Shape}.
 * @throws IllegalStateException
 *             if the given {@link Shape} is not supported.
 */
public static IGeometry toGeometry(Shape visual) {
	if (visual instanceof Arc) {
		return toArc((Arc) visual);
	} else if (visual instanceof Circle) {
		return toEllipse((Circle) visual);
	} else if (visual instanceof CubicCurve) {
		return toCubicCurve((CubicCurve) visual);
	} else if (visual instanceof Ellipse) {
		return toEllipse((Ellipse) visual);
	} else if (visual instanceof Line) {
		return toLine((Line) visual);
	} else if (visual instanceof Path) {
		return toPath((Path) visual);
	} else if (visual instanceof Polygon) {
		return toPolygon((Polygon) visual);
	} else if (visual instanceof Polyline) {
		return toPolyline((Polyline) visual);
	} else if (visual instanceof QuadCurve) {
		QuadCurve quad = (QuadCurve) visual;
		return toQuadraticCurve(quad);
	} else if (visual instanceof Rectangle) {
		Rectangle rect = (Rectangle) visual;
		if (rect.getArcWidth() == 0 && rect.getArcHeight() == 0) {
			// corners are not rounded => normal rectangle is sufficient
			return toRectangle(rect);
		}
		return toRoundedRectangle((Rectangle) visual);
	} else {
		// Text and SVGPath shapes are currently not supported
		throw new IllegalStateException(
				"Cannot compute geometric outline for Shape of type <"
						+ visual.getClass() + ">.");
	}
}
 

public static String convertRectangle(final Rectangle RECTANGLE) {
    final StringBuilder fxPath = new StringBuilder();
    final Bounds bounds = RECTANGLE.getBoundsInLocal();
    if (Double.compare(RECTANGLE.getArcWidth(), 0.0) == 0 && Double.compare(RECTANGLE.getArcHeight(), 0.0) == 0) {
        fxPath.append("M ").append(bounds.getMinX()).append(" ").append(bounds.getMinY()).append(" ")
              .append("H ").append(bounds.getMaxX()).append(" ")
              .append("V ").append(bounds.getMaxY()).append(" ")
              .append("H ").append(bounds.getMinX()).append(" ")
              .append("V ").append(bounds.getMinY()).append(" ")
              .append("Z");
    } else {
        double x         = bounds.getMinX();
        double y         = bounds.getMinY();
        double width     = bounds.getWidth();
        double height    = bounds.getHeight();
        double arcWidth  = RECTANGLE.getArcWidth();
        double arcHeight = RECTANGLE.getArcHeight();
        double r         = x + width;
        double b         = y + height;
        fxPath.append("M ").append(x + arcWidth).append(" ").append(y).append(" ")
              .append("L ").append(r - arcWidth).append(" ").append(y).append(" ")
              .append("Q ").append(r).append(" ").append(y).append(" ").append(r).append(" ").append(y + arcHeight).append(" ")
              .append("L ").append(r).append(" ").append(y + height - arcHeight).append(" ")
              .append("Q ").append(r).append(" ").append(b).append(" ").append(r - arcWidth).append(" ").append(b).append(" ")
              .append("L ").append(x + arcWidth).append(" ").append(b).append(" ")
              .append("Q ").append(x).append(" ").append(b).append(" ").append(x).append(" ").append(b - arcHeight).append(" ")
              .append("L ").append(x).append(" ").append(y + arcHeight).append(" ")
              .append("Q ").append(x).append(" ").append(y).append(" ").append(x + arcWidth).append(" ").append(y).append(" ")
              .append("Z");
    }
    return fxPath.toString();
}
 

/**
 * Converts the given JavaFX {@link Rectangle} to a
 * {@link org.eclipse.gef.geometry.planar.RoundedRectangle}.
 *
 * @param rect
 *            The JavaFX {@link Rectangle} to convert.
 * @return The newly created
 *         {@link org.eclipse.gef.geometry.planar.RoundedRectangle} that
 *         describes the given {@link Rectangle}.
 */
public static org.eclipse.gef.geometry.planar.RoundedRectangle toRoundedRectangle(
		Rectangle rect) {
	return new org.eclipse.gef.geometry.planar.RoundedRectangle(
			rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight(),
			rect.getArcWidth(), rect.getArcHeight());
}