Java PrecisionRectangle.setPreciseX方法代码示例

import org.eclipse.draw2d.geometry.PrecisionRectangle; //导入方法依赖的package包/类
private void doPrecisionAlignment(PrecisionRectangle result,
		PrecisionRectangle reference) {
	switch (alignment) {
	case PositionConstants.LEFT:
		result.setPreciseX(reference.preciseX());
		break;
	case PositionConstants.RIGHT:
		result.setPreciseX(reference.preciseX() + reference.preciseWidth()
				- result.preciseWidth());
		break;
	case PositionConstants.TOP:
		result.setPreciseY(reference.preciseY());
		break;
	case PositionConstants.BOTTOM:
		result.setPreciseY(reference.preciseY() + reference.preciseHeight()
				- result.preciseHeight());
		break;
	case PositionConstants.CENTER:
		result.setPreciseX(reference.preciseX()
				+ (reference.preciseWidth() / 2)
				- (result.preciseWidth() / 2));
		break;
	case PositionConstants.MIDDLE:
		result.setPreciseY(reference.preciseY()
				+ (reference.preciseHeight() / 2)
				- (result.preciseHeight() / 2));
		break;
	}

}
 

import org.eclipse.draw2d.geometry.PrecisionRectangle; //导入方法依赖的package包/类
/**
 * @see SnapToHelper#snapRectangle(Request, int, PrecisionRectangle,
 *      PrecisionRectangle)
 */
public int snapRectangle(Request request, int snapLocations,
		PrecisionRectangle rect, PrecisionRectangle result) {

	rect = rect.getPreciseCopy();
	makeRelative(container.getContentPane(), rect);
	PrecisionRectangle correction = new PrecisionRectangle();
	makeRelative(container.getContentPane(), correction);

	if (gridX > 0 && (snapLocations & EAST) != 0) {
		correction.setPreciseWidth(correction.preciseWidth()
				- localIEEEremainder(rect.preciseRight() - origin.x - 1,
						gridX));
		snapLocations &= ~EAST;
	}

	if ((snapLocations & (WEST | HORIZONTAL)) != 0 && gridX > 0) {
		double leftCorrection = localIEEEremainder(rect.preciseX()
				- origin.x, gridX);
		correction.setPreciseX(correction.preciseX() - leftCorrection);
		if ((snapLocations & HORIZONTAL) == 0) {
			correction.setPreciseWidth(correction.preciseWidth()
					+ leftCorrection);
		}
		snapLocations &= ~(WEST | HORIZONTAL);
	}

	if ((snapLocations & SOUTH) != 0 && gridY > 0) {
		correction.setPreciseHeight(correction.preciseHeight()
				- localIEEEremainder(rect.preciseBottom() - origin.y - 1,
						gridY));
		snapLocations &= ~SOUTH;
	}

	if ((snapLocations & (NORTH | VERTICAL)) != 0 && gridY > 0) {
		double topCorrection = localIEEEremainder(rect.preciseY()
				- origin.y, gridY);
		correction.setPreciseY(correction.preciseY() - topCorrection);
		if ((snapLocations & VERTICAL) == 0) {
			correction.setPreciseHeight(correction.preciseHeight()
					+ topCorrection);
		}
		snapLocations &= ~(NORTH | VERTICAL);
	}

	makeAbsolute(container.getContentPane(), correction);
	result.setPreciseX(result.preciseX() + correction.preciseX());
	result.setPreciseY(result.preciseY() + correction.preciseY());
	result.setPreciseWidth(result.preciseWidth()
			+ correction.preciseWidth());
	result.setPreciseHeight(result.preciseHeight()
			+ correction.preciseHeight());
	return snapLocations;
}
 

import org.eclipse.draw2d.geometry.PrecisionRectangle; //导入方法依赖的package包/类
/**
 * Applies a snapping correction to the given result. Snapping can occur in
 * the four primary directions: NORTH, SOUTH, EAST, WEST, as defined on
 * {@link PositionConstants}. By default a Point is treated as an empty
 * Rectangle. Only NORTH and WEST should be used in general. But SOUTH and
 * EAST may also be used. Similarly, VERTICAL and HORIZONTAL may be used to
 * allow a point to snap to the "center" or "middle" as defined by the
 * concrete subclass.
 * <P>
 * The returned value should be a subset of the given snapDirections based
 * on what correction was applied to the result. e.g., if the <b>x</b> value
 * was adjusted, the returned value should not contain WEST, EAST, or
 * HORIZONTAL.
 * <P>
 * All coordinate information received and returned by this method should be
 * in absolute coordinates.
 * 
 * @param request
 *            a request or <code>null</code>
 * @param snapDirections
 *            the directions in which snapping should occur.
 * @param where
 *            the rectangle used to determine snapping
 * @param result
 *            the result
 * @return the remaining snap locations
 */
public int snapPoint(Request request, int snapDirections,
		PrecisionPoint where, PrecisionPoint result) {
	PrecisionRectangle rect = new PrecisionRectangle();
	PrecisionRectangle resultRect = new PrecisionRectangle();
	rect.setPreciseX(where.preciseX());
	rect.setPreciseY(where.preciseY());
	snapDirections = snapRectangle(request, snapDirections, rect,
			resultRect);
	result.setPreciseX(result.preciseX() + resultRect.preciseX());
	result.setPreciseY(result.preciseY() + resultRect.preciseY());
	return snapDirections;
}