public class GridLayout extends Layout
Constructor and Description |
---|
GridLayout(int rows,
int columns)
Creates a new instance of GridLayout with the given rows and columns
|
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one.
|
int |
getColumns() |
Dimension |
getPreferredSize(Container parent)
Returns the container preferred size
|
int |
getRows() |
boolean |
isAutoFit()
Auto fits columns/rows to available screen space
|
boolean |
isFillLastRow()
When set to true makes the grid layout fill the last row of the layout
entirely if the number of elements in that row is bigger.
|
void |
layoutContainer(Container parent)
Layout the given parent container children
|
boolean |
obscuresPotential(Container parent)
Some layout managers can obscure their child components in some cases this
returns true if the basic underpinnings are in place for that.
|
void |
setAutoFit(boolean autoFit)
Auto fits columns/rows to available screen space
|
void |
setFillLastRow(boolean fillLastRow)
When set to true makes the grid layout fill the last row of the layout
entirely if the number of elements in that row is bigger.
|
String |
toString()
Returns a string representation of the object.
|
addLayoutComponent, getComponentConstraint, hashCode, isConstraintTracking, isOverlapSupported, removeLayoutComponent
public GridLayout(int rows, int columns)
rows
- - number of rows.columns
- - number of columns.IllegalArgumentException
- if rows < 1 or columns < 1public void layoutContainer(Container parent)
Layout
layoutContainer
in class Layout
parent
- the given parent containerpublic Dimension getPreferredSize(Container parent)
Layout
getPreferredSize
in class Layout
parent
- the parent containerpublic String toString()
Object
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())
public int getRows()
public int getColumns()
public boolean equals(Object o)
Object
The equals
method implements an equivalence relation
on non-null object references:
x
, x.equals(x)
should return
true
.
x
and y
, x.equals(y)
should return true
if and only if
y.equals(x)
returns true
.
x
, y
, and z
, if
x.equals(y)
returns true
and
y.equals(z)
returns true
, then
x.equals(z)
should return true
.
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.
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 non-null 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
).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode
method, which states
that equal objects must have equal hash codes.
equals
in class Layout
o
- the reference object with which to compare.true
if this object is the same as the obj
argument; false
otherwise.Object.hashCode()
,
HashMap
public boolean isFillLastRow()
public void setFillLastRow(boolean fillLastRow)
fillLastRow
- the fillLastRow to setpublic boolean isAutoFit()
public void setAutoFit(boolean autoFit)
autoFit
- the autoFit to setpublic boolean obscuresPotential(Container parent)
Layout
obscuresPotential
in class Layout
parent
- parent container