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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Ilya S. Okomin
* @version $Revision$
*/
package java.awt.font;
import java.awt.BasicStroke;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import org.apache.harmony.misc.HashCode;
/**
* The ShapeGraphicAttribute class provides an opportunity to insert shapes to a
* text.
*
* @since Android 1.0
*/
public final class ShapeGraphicAttribute extends GraphicAttribute {
// shape to render
/**
* The shape.
*/
private Shape fShape;
// flag, if the shape should be stroked (true) or filled (false)
/**
* The stroke.
*/
private boolean fStroke;
// bounds of the shape
/**
* The bounds.
*/
private Rectangle2D fBounds;
// X coordinate of the origin point
/**
* The origin x.
*/
private float fOriginX;
// Y coordinate of the origin point
/**
* The origin y.
*/
private float fOriginY;
// width of the shape
/**
* The shape width.
*/
private float fShapeWidth;
// height of the shape
/**
* The shape height.
*/
private float fShapeHeight;
/**
* The Constant STROKE indicates whether the Shape is stroked or not.
*/
public static final boolean STROKE = true;
/**
* The Constant FILL indicates whether the Shape is filled or not.
*/
public static final boolean FILL = false;
/**
* Instantiates a new ShapeGraphicAttribute object for the specified Shape.
*
* @param shape
* the shape to be rendered by this ShapeGraphicAttribute.
* @param alignment
* the alignment of this ShapeGraphicAttribute.
* @param stroke
* true if the Shape is stroked, false if the Shape is filled.
*/
public ShapeGraphicAttribute(Shape shape, int alignment, boolean stroke) {
super(alignment);
this.fShape = shape;
this.fStroke = stroke;
this.fBounds = fShape.getBounds2D();
this.fOriginX = (float)fBounds.getMinX();
this.fOriginY = (float)fBounds.getMinY();
this.fShapeWidth = (float)fBounds.getWidth();
this.fShapeHeight = (float)fBounds.getHeight();
}
/**
* Returns a hash code of this ShapeGraphicAttribute object.
*
* @return a hash code of this ShapeGraphicAttribute object.
*/
@Override
public int hashCode() {
HashCode hash = new HashCode();
hash.append(fShape.hashCode());
hash.append(getAlignment());
return hash.hashCode();
}
/**
* Compares this ShapeGraphicAttribute object to the specified
* ShapeGraphicAttribute object.
*
* @param sga
* the ShapeGraphicAttribute object to be compared.
* @return true, if this ShapeGraphicAttribute object is equal to the
* specified ShapeGraphicAttribute object, false otherwise.
*/
public boolean equals(ShapeGraphicAttribute sga) {
if (sga == null) {
return false;
}
if (sga == this) {
return true;
}
return (fStroke == sga.fStroke && getAlignment() == sga.getAlignment() && fShape
.equals(sga.fShape));
}
/**
* Compares this ShapeGraphicAttribute object to the specified Object.
*
* @param obj
* the Object to be compared.
* @return true, if this ShapeGraphicAttribute object is equal to the
* specified Object, false otherwise.
*/
@Override
public boolean equals(Object obj) {
try {
return equals((ShapeGraphicAttribute)obj);
} catch (ClassCastException e) {
return false;
}
}
@Override
public void draw(Graphics2D g2, float x, float y) {
AffineTransform at = AffineTransform.getTranslateInstance(x, y);
if (fStroke == STROKE) {
Stroke oldStroke = g2.getStroke();
g2.setStroke(new BasicStroke());
g2.draw(at.createTransformedShape(fShape));
g2.setStroke(oldStroke);
} else {
g2.fill(at.createTransformedShape(fShape));
}
}
@Override
public float getAdvance() {
return Math.max(0, fShapeWidth + fOriginX);
}
@Override
public float getAscent() {
return Math.max(0, -fOriginY);
}
@Override
public Rectangle2D getBounds() {
return (Rectangle2D)fBounds.clone();
}
@Override
public float getDescent() {
return Math.max(0, fShapeHeight + fOriginY);
}
}
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