| /* ShapeGraphicAttribute.java |
| Copyright (C) 2003 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.awt.font; |
| |
| import java.awt.Graphics2D; |
| import java.awt.Shape; |
| import java.awt.geom.Rectangle2D; |
| |
| /** |
| * This is an implementation of GraphicAttribute that draws shapes in a TextLayout. |
| * |
| * @author Lillian Angel (langel at redhat dot com) |
| */ |
| public final class ShapeGraphicAttribute extends GraphicAttribute |
| { |
| /** True if the shape should be filled. */ |
| public static final boolean FILL = false; |
| |
| /** True if the shape should be stroked with a 1-pixel wide stroke. */ |
| public static final boolean STROKE = true; |
| |
| private Shape shape; |
| private boolean stroke; |
| private Rectangle2D bounds; |
| |
| /** |
| * Constructor. |
| * |
| * @param shape - the Shape to render. The Shape is rendered with its origin. |
| * @param alignment - the alignment |
| * @param stroke - true if the Shape should be stroked; false if the Shape |
| * should be filled. |
| */ |
| public ShapeGraphicAttribute(Shape shape, int alignment, boolean stroke) |
| { |
| super(alignment); |
| this.shape = shape; |
| this.stroke = stroke; |
| this.bounds = shape.getBounds2D(); |
| } |
| |
| /** |
| * Draws the graphic at the given location. |
| * |
| * @param graphics - the graphics to use. |
| * @param x - the x location to draw at. |
| * @param y - the y location to draw at. |
| */ |
| public void draw(Graphics2D graphics, float x, float y) |
| { |
| graphics.translate(x, y); |
| if (stroke == STROKE) |
| graphics.draw(shape); |
| else |
| graphics.fill(shape); |
| graphics.translate(- x, - y); |
| } |
| |
| /** |
| * Compares this ShapeGraphicAttribute to obj. |
| * |
| * @param obj - the object to compare. |
| */ |
| public boolean equals(Object obj) |
| { |
| if (! (obj instanceof ShapeGraphicAttribute)) |
| return false; |
| |
| return equals((ShapeGraphicAttribute) obj); |
| } |
| |
| /** |
| * Compares this ShapeGraphicAttribute to rhs. |
| * |
| * @param rhs - the ShapeGraphicAttribute to compare. |
| */ |
| public boolean equals(ShapeGraphicAttribute rhs) |
| { |
| return (this == rhs || (this.shape.equals(rhs.shape) |
| && getAlignment() == rhs.getAlignment() |
| && stroke == rhs.stroke |
| && getAdvance() == rhs.getAdvance() |
| && getAscent() == rhs.getAscent() |
| && getBounds().equals(rhs.getBounds()) |
| && getDescent() == rhs.getDescent() |
| && hashCode() == rhs.hashCode())); |
| } |
| |
| /** |
| * Gets the distance from the origin of its Shape to the right side of the |
| * bounds of its Shape. |
| * |
| * @return the advance |
| */ |
| public float getAdvance() |
| { |
| return Math.max(0, (float) bounds.getMaxX()); |
| } |
| |
| /** |
| * Gets the positive distance from the origin of its Shape to the top of |
| * bounds. |
| * |
| * @return the ascent |
| */ |
| public float getAscent() |
| { |
| return Math.max(0, -(float) bounds.getMinY()); |
| } |
| |
| /** |
| * Gets the distance from the origin of its Shape to the bottom of the bounds. |
| * |
| * @return the descent |
| */ |
| public float getDescent() |
| { |
| return Math.max(0, (float) bounds.getMaxY()); |
| } |
| |
| /** |
| * Returns a Rectangle2D that encloses all of the bits drawn by this shape. |
| * |
| * @return the bounds of the shape. |
| */ |
| public Rectangle2D getBounds() |
| { |
| Rectangle2D.Float bounds = new Rectangle2D.Float(); |
| bounds.setRect(this.bounds); |
| |
| if (stroke == STROKE) |
| { |
| bounds.width++; |
| bounds.height++; |
| } |
| |
| return bounds; |
| } |
| |
| /** |
| * Gets the hash code. |
| * |
| * @return the hash code. |
| */ |
| public int hashCode() |
| { |
| return shape.hashCode(); |
| } |
| } |