/* * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//* * (C) Copyright Taligent, Inc. 1996 - 1997, All Rights Reserved * (C) Copyright IBM Corp. 1996 - 1998, All Rights Reserved * * The original version of this source code and documentation is * copyrighted and owned by Taligent, Inc., a wholly-owned subsidiary * of IBM. These materials are provided under terms of a License * Agreement between Taligent and Sun. This technology is protected * by multiple US and International patents. * * This notice and attribution to Taligent may not be removed. * Taligent is a registered trademark of Taligent, Inc. * */package java.awt.font;import java.awt.Shape;import java.awt.Graphics;import java.awt.Rectangle;import java.awt.Graphics2D;import java.awt.Shape;import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D;/** * The <code>ShapeGraphicAttribute</code> class is an implementation of * {@link GraphicAttribute} that draws shapes in a {@link TextLayout}. * @see GraphicAttribute */public final class ShapeGraphicAttribute extends GraphicAttribute { private Shape fShape; private boolean fStroke; /** * A key indicating the shape should be stroked with a 1-pixel wide stroke. */ public static final boolean STROKE = true; /** * A key indicating the shape should be filled. */ public static final boolean FILL = false; // cache shape bounds, since GeneralPath doesn't private Rectangle2D fShapeBounds; /** * Constructs a <code>ShapeGraphicAttribute</code> for the specified * {@link Shape}. * @param shape the <code>Shape</code> to render. The * <code>Shape</code> is rendered with its origin at the origin of * this <code>ShapeGraphicAttribute</code> in the * host <code>TextLayout</code>. This object maintains a reference to * <code>shape</code>. * @param alignment one of the alignments from this * <code>ShapeGraphicAttribute</code>. * @param stroke <code>true</code> if the <code>Shape</code> should be * stroked; <code>false</code> if the <code>Shape</code> should be * filled. */ public ShapeGraphicAttribute(Shape shape, int alignment, boolean stroke) { super(alignment); fShape = shape; fStroke = stroke; fShapeBounds = fShape.getBounds2D(); } /** * Returns the ascent of this <code>ShapeGraphicAttribute</code>. The * ascent of a <code>ShapeGraphicAttribute</code> is the positive * distance from the origin of its <code>Shape</code> to the top of * bounds of its <code>Shape</code>. * @return the ascent of this <code>ShapeGraphicAttribute</code>. */ public float getAscent() { return (float) Math.max(0, -fShapeBounds.getMinY()); } /** * Returns the descent of this <code>ShapeGraphicAttribute</code>. * The descent of a <code>ShapeGraphicAttribute</code> is the distance * from the origin of its <code>Shape</code> to the bottom of the * bounds of its <code>Shape</code>. * @return the descent of this <code>ShapeGraphicAttribute</code>. */ public float getDescent() { return (float) Math.max(0, fShapeBounds.getMaxY()); } /** * Returns the advance of this <code>ShapeGraphicAttribute</code>. * The advance of a <code>ShapeGraphicAttribute</code> is the distance * from the origin of its <code>Shape</code> to the right side of the * bounds of its <code>Shape</code>. * @return the advance of this <code>ShapeGraphicAttribute</code>. */ public float getAdvance() { return (float) Math.max(0, fShapeBounds.getMaxX()); } /** * {@inheritDoc} */ public void draw(Graphics2D graphics, float x, float y) { // translating graphics to draw Shape !!! graphics.translate((int)x, (int)y); try { if (fStroke == STROKE) { // REMIND: set stroke to correct size graphics.draw(fShape); } else { graphics.fill(fShape); } } finally { graphics.translate(-(int)x, -(int)y); } } /** * Returns a {@link Rectangle2D} that encloses all of the * bits drawn by this <code>ShapeGraphicAttribute</code> relative to * the rendering position. A graphic can be rendered beyond its * origin, ascent, descent, or advance; but if it does, this method's * implementation should indicate where the graphic is rendered. * @return a <code>Rectangle2D</code> that encloses all of the bits * rendered by this <code>ShapeGraphicAttribute</code>. */ public Rectangle2D getBounds() { Rectangle2D.Float bounds = new Rectangle2D.Float(); bounds.setRect(fShapeBounds); if (fStroke == STROKE) { ++bounds.width; ++bounds.height; } return bounds; } /** * Return a {@link java.awt.Shape} that represents the region that * this <code>ShapeGraphicAttribute</code> renders. This is used when a * {@link TextLayout} is requested to return the outline of the text. * The (untransformed) shape must not extend outside the rectangular * bounds returned by <code>getBounds</code>. * @param tx an optional {@link AffineTransform} to apply to the * this <code>ShapeGraphicAttribute</code>. This can be null. * @return the <code>Shape</code> representing this graphic attribute, * suitable for stroking or filling. * @since 1.6 */ public Shape getOutline(AffineTransform tx) { return tx == null ? fShape : tx.createTransformedShape(fShape); } /** * Returns a hashcode for this <code>ShapeGraphicAttribute</code>. * @return a hash code value for this * <code>ShapeGraphicAttribute</code>. */ public int hashCode() { return fShape.hashCode(); } /** * Compares this <code>ShapeGraphicAttribute</code> to the specified * <code>Object</code>. * @param rhs the <code>Object</code> to compare for equality * @return <code>true</code> if this * <code>ShapeGraphicAttribute</code> equals <code>rhs</code>; * <code>false</code> otherwise. */ public boolean equals(Object rhs) { try { return equals((ShapeGraphicAttribute) rhs); } catch(ClassCastException e) { return false; } } /** * Compares this <code>ShapeGraphicAttribute</code> to the specified * <code>ShapeGraphicAttribute</code>. * @param rhs the <code>ShapeGraphicAttribute</code> to compare for * equality * @return <code>true</code> if this * <code>ShapeGraphicAttribute</code> equals <code>rhs</code>; * <code>false</code> otherwise. */ public boolean equals(ShapeGraphicAttribute rhs) { if (rhs == null) { return false; } if (this == rhs) { return true; } if (fStroke != rhs.fStroke) { return false; } if (getAlignment() != rhs.getAlignment()) { return false; } if (!fShape.equals(rhs.fShape)) { return false; } return true; }}
/*
* Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* (C) Copyright Taligent, Inc. 1996 - 1997, All Rights Reserved
* (C) Copyright IBM Corp. 1996 - 1998, All Rights Reserved
*
* The original version of this source code and documentation is
* copyrighted and owned by Taligent, Inc., a wholly-owned subsidiary
* of IBM. These materials are provided under terms of a License
* Agreement between Taligent and Sun. This technology is protected
* by multiple US and International patents.
*
* This notice and attribution to Taligent may not be removed.
* Taligent is a registered trademark of Taligent, Inc.
*
*/
package java.awt.font;
import java.awt.Shape;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
/**
* The <code>ShapeGraphicAttribute</code> class is an implementation of
* {@link GraphicAttribute} that draws shapes in a {@link TextLayout}.
* @see GraphicAttribute
*/
public final class ShapeGraphicAttribute extends GraphicAttribute {
private Shape fShape;
private boolean fStroke;
/**
* A key indicating the shape should be stroked with a 1-pixel wide stroke.
*/
public static final boolean STROKE = true;
/**
* A key indicating the shape should be filled.
*/
public static final boolean FILL = false;
// cache shape bounds, since GeneralPath doesn't
private Rectangle2D fShapeBounds;
/**
* Constructs a <code>ShapeGraphicAttribute</code> for the specified
* {@link Shape}.
* @param shape the <code>Shape</code> to render. The
* <code>Shape</code> is rendered with its origin at the origin of
* this <code>ShapeGraphicAttribute</code> in the
* host <code>TextLayout</code>. This object maintains a reference to
* <code>shape</code>.
* @param alignment one of the alignments from this
* <code>ShapeGraphicAttribute</code>.
* @param stroke <code>true</code> if the <code>Shape</code> should be
* stroked; <code>false</code> if the <code>Shape</code> should be
* filled.
*/
public ShapeGraphicAttribute(Shape shape,
int alignment,
boolean stroke) {
super(alignment);
fShape = shape;
fStroke = stroke;
fShapeBounds = fShape.getBounds2D();
}
/**
* Returns the ascent of this <code>ShapeGraphicAttribute</code>. The
* ascent of a <code>ShapeGraphicAttribute</code> is the positive
* distance from the origin of its <code>Shape</code> to the top of
* bounds of its <code>Shape</code>.
* @return the ascent of this <code>ShapeGraphicAttribute</code>.
*/
public float getAscent() {
return (float) Math.max(0, -fShapeBounds.getMinY());
}
/**
* Returns the descent of this <code>ShapeGraphicAttribute</code>.
* The descent of a <code>ShapeGraphicAttribute</code> is the distance
* from the origin of its <code>Shape</code> to the bottom of the
* bounds of its <code>Shape</code>.
* @return the descent of this <code>ShapeGraphicAttribute</code>.
*/
public float getDescent() {
return (float) Math.max(0, fShapeBounds.getMaxY());
}
/**
* Returns the advance of this <code>ShapeGraphicAttribute</code>.
* The advance of a <code>ShapeGraphicAttribute</code> is the distance
* from the origin of its <code>Shape</code> to the right side of the
* bounds of its <code>Shape</code>.
* @return the advance of this <code>ShapeGraphicAttribute</code>.
*/
public float getAdvance() {
return (float) Math.max(0, fShapeBounds.getMaxX());
}
/**
* {@inheritDoc}
*/
public void draw(Graphics2D graphics, float x, float y) {
// translating graphics to draw Shape !!!
graphics.translate((int)x, (int)y);
try {
if (fStroke == STROKE) {
// REMIND: set stroke to correct size
graphics.draw(fShape);
}
else {
graphics.fill(fShape);
}
}
finally {
graphics.translate(-(int)x, -(int)y);
}
}
/**
* Returns a {@link Rectangle2D} that encloses all of the
* bits drawn by this <code>ShapeGraphicAttribute</code> relative to
* the rendering position. A graphic can be rendered beyond its
* origin, ascent, descent, or advance; but if it does, this method's
* implementation should indicate where the graphic is rendered.
* @return a <code>Rectangle2D</code> that encloses all of the bits
* rendered by this <code>ShapeGraphicAttribute</code>.
*/
public Rectangle2D getBounds() {
Rectangle2D.Float bounds = new Rectangle2D.Float();
bounds.setRect(fShapeBounds);
if (fStroke == STROKE) {
++bounds.width;
++bounds.height;
}
return bounds;
}
/**
* Return a {@link java.awt.Shape} that represents the region that
* this <code>ShapeGraphicAttribute</code> renders. This is used when a
* {@link TextLayout} is requested to return the outline of the text.
* The (untransformed) shape must not extend outside the rectangular
* bounds returned by <code>getBounds</code>.
* @param tx an optional {@link AffineTransform} to apply to the
* this <code>ShapeGraphicAttribute</code>. This can be null.
* @return the <code>Shape</code> representing this graphic attribute,
* suitable for stroking or filling.
* @since 1.6
*/
public Shape getOutline(AffineTransform tx) {
return tx == null ? fShape : tx.createTransformedShape(fShape);
}
/**
* Returns a hashcode for this <code>ShapeGraphicAttribute</code>.
* @return a hash code value for this
* <code>ShapeGraphicAttribute</code>.
*/
public int hashCode() {
return fShape.hashCode();
}
/**
* Compares this <code>ShapeGraphicAttribute</code> to the specified
* <code>Object</code>.
* @param rhs the <code>Object</code> to compare for equality
* @return <code>true</code> if this
* <code>ShapeGraphicAttribute</code> equals <code>rhs</code>;
* <code>false</code> otherwise.
*/
public boolean equals(Object rhs) {
try {
return equals((ShapeGraphicAttribute) rhs);
}
catch(ClassCastException e) {
return false;
}
}
/**
* Compares this <code>ShapeGraphicAttribute</code> to the specified
* <code>ShapeGraphicAttribute</code>.
* @param rhs the <code>ShapeGraphicAttribute</code> to compare for
* equality
* @return <code>true</code> if this
* <code>ShapeGraphicAttribute</code> equals <code>rhs</code>;
* <code>false</code> otherwise.
*/
public boolean equals(ShapeGraphicAttribute rhs) {
if (rhs == null) {
return false;
}
if (this == rhs) {
return true;
}
if (fStroke != rhs.fStroke) {
return false;
}
if (getAlignment() != rhs.getAlignment()) {
return false;
}
if (!fShape.equals(rhs.fShape)) {
return false;
}
return true;
}
}