public class Rectangle

  1. Object
  2. Rectangle

ImplementsShape

Represents a Rectangle position (x, y) and Dimension (width, height), this is useful for measuring coordinates within the application.

Constructors

public Rectangle()Creates a new instance of Rectangle
public Rectangle(int x, int y, Dimension size)Creates a new instance of Rectangle at position (x, y) and with predefine dimension
public Rectangle(int x, int y, int w, int h)Creates a new instance of Rectangle at position (x, y) and with predefine width and height
public Rectangle(Rectangle rect)A copy Constructor

Methods

public static synchronized Rectangle createFromPool(int x, int y, int w, int h)Creates a rectangle from a Rectangle object pool.
public static synchronized void recycle(Rectangle r)Returns the given rectangle to the object pool.
public static boolean contains(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2)Checks wheather the 2nd rectangle is contained in the first rectangle
public static void intersection(int rrX, int rrY, int rrW, int rrH, int rtx1, int rty1, int rtw2, int rth2, Rectangle dest)Returns a rectangle that intersects the given rectangle with this rectangle
public static boolean intersects(int tx, int ty, int tw, int th, int x, int y, int width, int height)Helper method allowing us to determine if two coordinate sets intersect.
public void setBounds(int x, int y, int w, int h)Helper method to set coordinates
public int getWidth()Convenience method for getSize().getWidth();
public void setWidth(int w)Convenience method for getSize().setWidth();
public int getHeight()Convenience method for getSize().getHeight();
public void setHeight(int h)Convenience method for getSize().setHeight();
public Dimension getSize()Return the dimension of the rectangle
public int getX()Return the x coordinate of the rectangle
public void setX(int x)Sets the x position of the rectangle
public int getY()Return the y coordinate of the rectangle
public void setY(int y)Sets the y position of the rectangle
public String toString()Returns a string representation of the object.
public boolean contains(Rectangle rect)Checks whether or not this Rectangle entirely contains the specified Rectangle.
public boolean contains(int rX, int rY, int rWidth, int rHeight)Checks whether this Rectangle entirely contains the Rectangle at the specified location (rX, rY) with the specified dimensions (rWidth, rHeight).
public boolean contains(int rX, int rY)Checks whether or not this Rectangle contains the point at the specified location (rX, rY).
public Rectangle intersection(int rX, int rY, int rW, int rH)Returns a rectangle that intersects the given rectangle with this rectangle.
public void intersection(Rectangle input, Rectangle output)
public Rectangle intersection(Rectangle r)Returns a rectangle that intersects the given rectangle with this rectangle
public boolean intersects(int x, int y, int width, int height)Determines whether or not this Rectangle and the specified Rectangle location (x, y) with the specified dimensions (width, height), intersect.
public boolean intersects(Rectangle rect)Determines whether or not this Rectangle and the specified Rectangle location (x, y) with the specified dimensions (width, height), intersect.
public PathIterator getPathIterator(Transform m){Gets an iterator where all points are transformed by the provided transform.
public PathIterator getPathIterator(){Gets an iterator to walk all of the path segments of the shape.}
public Rectangle getBounds(){Returns the bounding rectangle for the shape.
public void setBounds(Rectangle bounds)Sets the bounds of this rectangle.
public float[] getBounds2D(){Gets the bounds of the shape as a 4-element array representing the (x,y,width,height) tuple.}
public boolean isRectangle(){Checks if this shape is a rectangle.
public boolean equals(Object obj){Indicates whether some other object is “equal to” this one.
public int hashCode(){Returns a hash code value for the object.

Inherited methods

From Object

getClass, notify, notifyAll, wait, wait, wait, clone

Constructor details

Rectangle

public Rectangle()
Creates a new instance of Rectangle

Rectangle

public Rectangle(int x, int y, Dimension size)
Creates a new instance of Rectangle at position (x, y) and with predefine dimension

Parameters

x int
the x coordinate of the rectangle
y int
the y coordinate of the rectangle
size Dimension
the Dimension of the rectangle

Rectangle

public Rectangle(int x, int y, int w, int h)
Creates a new instance of Rectangle at position (x, y) and with predefine width and height

Parameters

x int
the x coordinate of the rectangle
y int
the y coordinate of the rectangle
w int
the width of the rectangle
h int
the height of the rectangle

Rectangle

public Rectangle(Rectangle rect)
A copy Constructor

Parameters

rect Rectangle
the Rectangle to copy

Method details

createFromPool

public static synchronized Rectangle createFromPool(int x, int y, int w, int h)

Creates a rectangle from a Rectangle object pool. This is handy if you need to create a temporary Rectangle that you wish to recycle later.

When you are done with this object you should return it to the pool using #recycle(com.codename1.ui.geom.Rectangle).

Parameters

x int
The x coordinate of the rect.
y int
The y coordinate of the rect.
w int
The width of the rect.
h int
The height of the rect.

Returns

A rectangle with the given dimensions.

See also

recycle

public static synchronized void recycle(Rectangle r)
Returns the given rectangle to the object pool.

Parameters

r Rectangle
The rectangle to recycle.

See also

contains

public static boolean contains(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2)
Checks wheather the 2nd rectangle is contained in the first rectangle

Parameters

x1 int
first rect x
y1 int
first rect y
w1 int
first rect w
h1 int
first rect h
x2 int
second rect x
y2 int
second rect y
w2 int
second rect w
h2 int
second rect h

Returns

true if x2, y2, w2, h2 is contained in x1, y1, w1, h1

intersection

public static void intersection(int rrX, int rrY, int rrW, int rrH, int rtx1, int rty1, int rtw2, int rth2, Rectangle dest)
Returns a rectangle that intersects the given rectangle with this rectangle

Parameters

rrX int
rectangle to intersect with this rectangle
rrY int
rectangle to intersect with this rectangle
rrW int
rectangle to intersect with this rectangle
rrH int
rectangle to intersect with this rectangle
rtx1 int
rectangle to intersect with this rectangle
rty1 int
rectangle to intersect with this rectangle
rtw2 int
rectangle to intersect with this rectangle
rth2 int
rectangle to intersect with this rectangle
dest Rectangle
result of the intersection are stored here

intersects

public static boolean intersects(int tx, int ty, int tw, int th, int x, int y, int width, int height)
Helper method allowing us to determine if two coordinate sets intersect. This saves us the need of creating a rectangle object for a quick calculation

Parameters

tx int
x of first rectangle
ty int
y of first rectangle
tw int
width of first rectangle
th int
height of first rectangle
x int
x of second rectangle
y int
y of second rectangle
width int
width of second rectangle
height int
height of second rectangle

Returns

true if the rectangles intersect

setBounds

public void setBounds(int x, int y, int w, int h)
Helper method to set coordinates

getWidth

public int getWidth()
Convenience method for getSize().getWidth();

Returns

width

setWidth

public void setWidth(int w)
Convenience method for getSize().setWidth();

Parameters

w int
the width

getHeight

public int getHeight()
Convenience method for getSize().getHeight();

Returns

height

setHeight

public void setHeight(int h)
Convenience method for getSize().setHeight();

Parameters

h int
the height

getSize

public Dimension getSize()
Return the dimension of the rectangle

Returns

the size of the rectangle

getX

public int getX()
Return the x coordinate of the rectangle

Returns

the x coordinate of the rectangle

setX

public void setX(int x)
Sets the x position of the rectangle

Parameters

x int
the x coordinate of the rectangle

getY

public int getY()
Return the y coordinate of the rectangle

Returns

the y coordinate of the rectangle

setY

public void setY(int y)
Sets the y position of the rectangle

Parameters

y int
the y coordinate of the rectangle

toString

public String toString()
Returns a string representation of the object. In general, the toString method returns a string that “textually represents” this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@’, and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of: getClass().getName() + ‘@’ + Integer.toHexString(hashCode())

contains

public boolean contains(Rectangle rect)
Checks whether or not this Rectangle entirely contains the specified Rectangle.

Parameters

rect Rectangle
the specified Rectangle

Returns

true if the Rectangle is contained entirely inside this Rectangle; false otherwise

contains

public boolean contains(int rX, int rY, int rWidth, int rHeight)
Checks whether this Rectangle entirely contains the Rectangle at the specified location (rX, rY) with the specified dimensions (rWidth, rHeight).

Parameters

rX int
the specified x coordinate
rY int
the specified y coordinate
rWidth int
the width of the Rectangle
rHeight int
the height of the Rectangle

Returns

true if the Rectangle specified by (rX, rY, rWidth, rHeight) is entirely enclosed inside this Rectangle; false otherwise.

contains

public boolean contains(int rX, int rY)
Checks whether or not this Rectangle contains the point at the specified location (rX, rY).

Parameters

rX int
the specified x coordinate
rY int
the specified y coordinate

Returns

true if the point (rX, rY) is inside this Rectangle; false otherwise.

intersection

public Rectangle intersection(int rX, int rY, int rW, int rH)
Returns a rectangle that intersects the given rectangle with this rectangle. If they don’t intersect, the resulting rectangle will have a negative width or height.

Parameters

rX int
rectangle to intersect with this rectangle
rY int
rectangle to intersect with this rectangle
rW int
rectangle to intersect with this rectangle
rH int
rectangle to intersect with this rectangle

Returns

the intersection

intersection

public void intersection(Rectangle input, Rectangle output)

intersection

public Rectangle intersection(Rectangle r)
Returns a rectangle that intersects the given rectangle with this rectangle

Parameters

r Rectangle
rectangle to intersect with this rectangle

Returns

the intersection

intersects

public boolean intersects(int x, int y, int width, int height)
Determines whether or not this Rectangle and the specified Rectangle location (x, y) with the specified dimensions (width, height), intersect. Two rectangles intersect if their intersection is nonempty.

Parameters

x int
the specified x coordinate
y int
the specified y coordinate
width int
the width of the Rectangle
height int
the height of the Rectangle

Returns

true if the specified Rectangle and this Rectangle intersect; false otherwise.

intersects

public boolean intersects(Rectangle rect)
Determines whether or not this Rectangle and the specified Rectangle location (x, y) with the specified dimensions (width, height), intersect. Two rectangles intersect if their intersection is nonempty.

Parameters

rect Rectangle
the Rectangle to check intersection with

Returns

true if the specified Rectangle and this Rectangle intersect; false otherwise.

getPathIterator

public PathIterator getPathIterator(Transform m)

{Gets an iterator where all points are transformed by the provided transform.

Note: If com.codename1.ui.Transform#isSupported() is false, then using this iterator will throw a Runtime Exception.}

Returns

A PathIterator where points are transformed by the provided transform.

getPathIterator

public PathIterator getPathIterator()
{Gets an iterator to walk all of the path segments of the shape.}

Returns

A PathIterator that can iterate over the path segments of the shape.

getBounds

public Rectangle getBounds()
{Returns the bounding rectangle for the shape. This should be the smallest rectangle such that the all path segments in the shape are contained within it.}

Returns

A Rectangle that comprises the bounds of the shape.

setBounds

public void setBounds(Rectangle bounds)
Sets the bounds of this rectangle.

Parameters

bounds Rectangle
A rectangle whose bounds will be copied.

getBounds2D

public float[] getBounds2D()
{Gets the bounds of the shape as a 4-element array representing the (x,y,width,height) tuple.}

Returns

[x, y, width, height] bounds of this shape.

isRectangle

public boolean isRectangle()
{Checks if this shape is a rectangle. A Shape is a rectangle if it is a closed quadrilateral composed of two vertical lines and two horizontal lines. If all points have integer coordinates, and this returns true, then getBounds() should return an equivalent rectangle to the shape itself.}

Returns

True if shape is a rectangle.

equals

public boolean equals(Object obj)
{Indicates whether some other object is “equal to” this one. The equals method implements an equivalence relation: It is reflexive: for any reference value x, x.equals(x) should return true. It is symmetric: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true. It is transitive: for any reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. It is consistent: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the object is modified. For any non-null reference value x, x.equals(null) should return false. The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).}

hashCode

public int hashCode()
{Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable. The general contract of hashCode is: Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables. As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)}