Shape

Shape

public Shape ()

clone

public Shape clone ()

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

 x.clone() != x

will be true, and that the expression:

 x.clone().getClass() == x.getClass()

will be true, but these are not absolute requirements. While it is typically the case that:

 x.clone().equals(x)

will be true, this is not an absolute requirement.

By convention, the returned object should be obtained by calling super.clone. If a class and all of its superclasses (except Object) obey this convention, it will be the case that x.clone().getClass() == x.getClass().

By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by super.clone before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by super.clone need to be modified.

Returns
Shape	a clone of this instance.

Throws
CloneNotSupportedException

draw

public abstract void draw (Canvas canvas, 
                Paint paint)

Draws this shape into the provided Canvas, with the provided Paint.

Before calling this, you must call resize(float, float).

Parameters
canvas	Canvas: the Canvas within which this shape should be drawn
paint	Paint: the Paint object that defines this shape's characteristics

equals

public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null 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 non-null 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 non-null 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 objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o	Object: the reference object with which to compare.

Returns
boolean	true if this object is the same as the obj argument; false otherwise.

getHeight

public final float getHeight ()

Returns the height of the Shape.

Returns
float

getOutline

public void getOutline (Outline outline)

Computes the Outline of the shape and return it in the supplied Outline parameter. The default implementation does nothing and outline is not changed.

Parameters
outline	Outline: the Outline to be populated with the result. Must be non-null.

getWidth

public final float getWidth ()

Returns the width of the Shape.

Returns
float

hasAlpha

public boolean hasAlpha ()

Checks whether the Shape is opaque.

Default impl returns true. Override if your subclass can be opaque.

Returns
boolean	true if any part of the drawable is not opaque.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

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 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 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 hash tables.

Returns
int	a hash code value for this object.

resize

public final void resize (float width, 
                float height)

Resizes the dimensions of this shape.

Must be called before draw(android.graphics.Canvas, android.graphics.Paint).

Parameters
width	float: the width of the shape (in pixels)
height	float: the height of the shape (in pixels)

onResize

protected void onResize (float width, 
                float height)

Callback method called when resize(float, float) is executed.

Parameters
width	float: the new width of the Shape
height	float: the new height of the Shape