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com.itextpdf.awt.geom.Rectangle2D Maven / Gradle / Ivy
/*
* 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.
*
* This code was originally part of the Apache Harmony project.
* The Apache Harmony project has been discontinued.
* That's why we imported the code into iText.
*/
/**
* @author Denis M. Kishenko
*/
package com.itextpdf.awt.geom;
import java.util.NoSuchElementException;
import com.itextpdf.awt.geom.misc.HashCode;
import com.itextpdf.awt.geom.misc.Messages;
public abstract class Rectangle2D extends RectangularShape {
public static final int OUT_LEFT = 1;
public static final int OUT_TOP = 2;
public static final int OUT_RIGHT = 4;
public static final int OUT_BOTTOM = 8;
public static class Float extends Rectangle2D {
public float x;
public float y;
public float width;
public float height;
public Float() {
}
public Float(float x, float y, float width, float height) {
setRect(x, y, width, height);
}
@Override
public double getX() {
return x;
}
@Override
public double getY() {
return y;
}
@Override
public double getWidth() {
return width;
}
@Override
public double getHeight() {
return height;
}
@Override
public boolean isEmpty() {
return width <= 0.0f || height <= 0.0f;
}
public void setRect(float x, float y, float width, float height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
@Override
public void setRect(double x, double y, double width, double height) {
this.x = (float)x;
this.y = (float)y;
this.width = (float)width;
this.height = (float)height;
}
@Override
public void setRect(Rectangle2D r) {
this.x = (float)r.getX();
this.y = (float)r.getY();
this.width = (float)r.getWidth();
this.height = (float)r.getHeight();
}
@Override
public int outcode(double px, double py) {
int code = 0;
if (width <= 0.0f) {
code |= OUT_LEFT | OUT_RIGHT;
} else
if (px < x) {
code |= OUT_LEFT;
} else
if (px > x + width) {
code |= OUT_RIGHT;
}
if (height <= 0.0f) {
code |= OUT_TOP | OUT_BOTTOM;
} else
if (py < y) {
code |= OUT_TOP;
} else
if (py > y + height) {
code |= OUT_BOTTOM;
}
return code;
}
@Override
public Rectangle2D getBounds2D() {
return new Float(x, y, width, height);
}
@Override
public Rectangle2D createIntersection(Rectangle2D r) {
Rectangle2D dst;
if (r instanceof Double) {
dst = new Rectangle2D.Double();
} else {
dst = new Rectangle2D.Float();
}
Rectangle2D.intersect(this, r, dst);
return dst;
}
@Override
public Rectangle2D createUnion(Rectangle2D r) {
Rectangle2D dst;
if (r instanceof Double) {
dst = new Rectangle2D.Double();
} else {
dst = new Rectangle2D.Float();
}
Rectangle2D.union(this, r, dst);
return dst;
}
@Override
public String toString() {
// The output format based on 1.5 release behaviour. It could be obtained in the following way
// System.out.println(new Rectangle2D.Float().toString())
return getClass().getName() + "[x=" + x + ",y=" + y + ",width=" + width + ",height=" + height + "]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
}
}
public static class Double extends Rectangle2D {
public double x;
public double y;
public double width;
public double height;
public Double() {
}
public Double(double x, double y, double width, double height) {
setRect(x, y, width, height);
}
@Override
public double getX() {
return x;
}
@Override
public double getY() {
return y;
}
@Override
public double getWidth() {
return width;
}
@Override
public double getHeight() {
return height;
}
@Override
public boolean isEmpty() {
return width <= 0.0 || height <= 0.0;
}
@Override
public void setRect(double x, double y, double width, double height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
@Override
public void setRect(Rectangle2D r) {
this.x = r.getX();
this.y = r.getY();
this.width = r.getWidth();
this.height = r.getHeight();
}
@Override
public int outcode(double px, double py) {
int code = 0;
if (width <= 0.0) {
code |= OUT_LEFT | OUT_RIGHT;
} else
if (px < x) {
code |= OUT_LEFT;
} else
if (px > x + width) {
code |= OUT_RIGHT;
}
if (height <= 0.0) {
code |= OUT_TOP | OUT_BOTTOM;
} else
if (py < y) {
code |= OUT_TOP;
} else
if (py > y + height) {
code |= OUT_BOTTOM;
}
return code;
}
@Override
public Rectangle2D getBounds2D() {
return new Double(x, y, width, height);
}
@Override
public Rectangle2D createIntersection(Rectangle2D r) {
Rectangle2D dst = new Rectangle2D.Double();
Rectangle2D.intersect(this, r, dst);
return dst;
}
@Override
public Rectangle2D createUnion(Rectangle2D r) {
Rectangle2D dest = new Rectangle2D.Double();
Rectangle2D.union(this, r, dest);
return dest;
}
@Override
public String toString() {
// The output format based on 1.5 release behaviour. It could be obtained in the following way
// System.out.println(new Rectangle2D.Double().toString())
return getClass().getName() + "[x=" + x + ",y=" + y + ",width=" + width + ",height=" + height + "]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
}
}
/*
* Rectangle2D path iterator
*/
class Iterator implements PathIterator {
/**
* The x coordinate of left-upper rectangle corner
*/
double x;
/**
* The y coordinate of left-upper rectangle corner
*/
double y;
/**
* The width of rectangle
*/
double width;
/**
* The height of rectangle
*/
double height;
/**
* The path iterator transformation
*/
AffineTransform t;
/**
* The current segmenet index
*/
int index;
/**
* Constructs a new Rectangle2D.Iterator for given rectangle and transformation
* @param r - the source Rectangle2D object
* @param at - the AffineTransform object to apply rectangle path
*/
Iterator(Rectangle2D r, AffineTransform at) {
this.x = r.getX();
this.y = r.getY();
this.width = r.getWidth();
this.height = r.getHeight();
this.t = at;
if (width < 0.0 || height < 0.0) {
index = 6;
}
}
public int getWindingRule() {
return WIND_NON_ZERO;
}
public boolean isDone() {
return index > 5;
}
public void next() {
index++;
}
public int currentSegment(double[] coords) {
if (isDone()) {
throw new NoSuchElementException(Messages.getString("awt.4B")); //$NON-NLS-1$
}
if (index == 5) {
return SEG_CLOSE;
}
int type;
if (index == 0) {
type = SEG_MOVETO;
coords[0] = x;
coords[1] = y;
} else {
type = SEG_LINETO;
switch(index) {
case 1:
coords[0] = x + width;
coords[1] = y;
break;
case 2:
coords[0] = x + width;
coords[1] = y + height;
break;
case 3:
coords[0] = x;
coords[1] = y + height;
break;
case 4:
coords[0] = x;
coords[1] = y;
break;
}
}
if (t != null) {
t.transform(coords, 0, coords, 0, 1);
}
return type;
}
public int currentSegment(float[] coords) {
if (isDone()) {
throw new NoSuchElementException(Messages.getString("awt.4B")); //$NON-NLS-1$
}
if (index == 5) {
return SEG_CLOSE;
}
int type;
if (index == 0) {
coords[0] = (float)x;
coords[1] = (float)y;
type = SEG_MOVETO;
} else {
type = SEG_LINETO;
switch(index) {
case 1:
coords[0] = (float)(x + width);
coords[1] = (float)y;
break;
case 2:
coords[0] = (float)(x + width);
coords[1] = (float)(y + height);
break;
case 3:
coords[0] = (float)x;
coords[1] = (float)(y + height);
break;
case 4:
coords[0] = (float)x;
coords[1] = (float)y;
break;
}
}
if (t != null) {
t.transform(coords, 0, coords, 0, 1);
}
return type;
}
}
protected Rectangle2D() {
}
public abstract void setRect(double x, double y, double width, double height);
public abstract int outcode(double x, double y);
public abstract Rectangle2D createIntersection(Rectangle2D r);
public abstract Rectangle2D createUnion(Rectangle2D r);
public void setRect(Rectangle2D r) {
setRect(r.getX(), r.getY(), r.getWidth(), r.getHeight());
}
@Override
public void setFrame(double x, double y, double width, double height) {
setRect(x, y, width, height);
}
public Rectangle2D getBounds2D() {
return (Rectangle2D)clone();
}
public boolean intersectsLine(double x1, double y1, double x2, double y2) {
double rx1 = getX();
double ry1 = getY();
double rx2 = rx1 + getWidth();
double ry2 = ry1 + getHeight();
return
(rx1 <= x1 && x1 <= rx2 && ry1 <= y1 && y1 <= ry2) ||
(rx1 <= x2 && x2 <= rx2 && ry1 <= y2 && y2 <= ry2) ||
Line2D.linesIntersect(rx1, ry1, rx2, ry2, x1, y1, x2, y2) ||
Line2D.linesIntersect(rx2, ry1, rx1, ry2, x1, y1, x2, y2);
}
public boolean intersectsLine(Line2D l) {
return intersectsLine(l.getX1(), l.getY1(), l.getX2(), l.getY2());
}
public int outcode(Point2D p) {
return outcode(p.getX(), p.getY());
}
public boolean contains(double x, double y) {
if (isEmpty()) {
return false;
}
double x1 = getX();
double y1 = getY();
double x2 = x1 + getWidth();
double y2 = y1 + getHeight();
return
x1 <= x && x < x2 &&
y1 <= y && y < y2;
}
public boolean intersects(double x, double y, double width, double height) {
if (isEmpty() || width <= 0.0 || height <= 0.0) {
return false;
}
double x1 = getX();
double y1 = getY();
double x2 = x1 + getWidth();
double y2 = y1 + getHeight();
return
x + width > x1 && x < x2 &&
y + height > y1 && y < y2;
}
public boolean contains(double x, double y, double width, double height) {
if (isEmpty() || width <= 0.0 || height <= 0.0) {
return false;
}
double x1 = getX();
double y1 = getY();
double x2 = x1 + getWidth();
double y2 = y1 + getHeight();
return
x1 <= x && x + width <= x2 &&
y1 <= y && y + height <= y2;
}
public static void intersect(Rectangle2D src1, Rectangle2D src2, Rectangle2D dst) {
double x1 = Math.max(src1.getMinX(), src2.getMinX());
double y1 = Math.max(src1.getMinY(), src2.getMinY());
double x2 = Math.min(src1.getMaxX(), src2.getMaxX());
double y2 = Math.min(src1.getMaxY(), src2.getMaxY());
dst.setFrame(x1, y1, x2 - x1, y2 - y1);
}
public static void union(Rectangle2D src1, Rectangle2D src2, Rectangle2D dst) {
double x1 = Math.min(src1.getMinX(), src2.getMinX());
double y1 = Math.min(src1.getMinY(), src2.getMinY());
double x2 = Math.max(src1.getMaxX(), src2.getMaxX());
double y2 = Math.max(src1.getMaxY(), src2.getMaxY());
dst.setFrame(x1, y1, x2 - x1, y2 - y1);
}
public void add(double x, double y) {
double x1 = Math.min(getMinX(), x);
double y1 = Math.min(getMinY(), y);
double x2 = Math.max(getMaxX(), x);
double y2 = Math.max(getMaxY(), y);
setRect(x1, y1, x2 - x1, y2 - y1);
}
public void add(Point2D p) {
add(p.getX(), p.getY());
}
public void add(Rectangle2D r) {
union(this, r, this);
}
public PathIterator getPathIterator(AffineTransform t) {
return new Iterator(this, t);
}
@Override
public PathIterator getPathIterator(AffineTransform t, double flatness) {
return new Iterator(this, t);
}
@Override
public int hashCode() {
HashCode hash = new HashCode();
hash.append(getX());
hash.append(getY());
hash.append(getWidth());
hash.append(getHeight());
return hash.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof Rectangle2D) {
Rectangle2D r = (Rectangle2D)obj;
return
getX() == r.getX() &&
getY() == r.getY() &&
getWidth() == r.getWidth() &&
getHeight() == r.getHeight();
}
return false;
}
}
