org.zaval.lw.gdp
Class InsetsCursorInfo

java.lang.Object
  |
  +--org.zaval.lw.gdp.InsetsCursorInfo

All Implemented Interfaces:

Cursorable

public class InsetsCursorInfo

extends java.lang.Object

implements Cursorable

This class is an implementation of org.zaval.lw.Cursorable interface. The class defines different cursors types for nine areas of the specified component. The component area is divided as follow:

TLEFT	TOP	TRIGHT
LEFT	CENTER	RIGHT
BLEFT	BOTTOM	BRIGHT

Field Summary
static int	BLEFT           Defines bottom-left area type.
static int	BRIGHT           Defines bottom-right area type.
static int	TLEFT           Defines top-left area type.
static int	TRIGHT           Defines top-right area type.

 

Constructor Summary

InsetsCursorInfo()           Constructs a new insets cursor info.

 

Method Summary
protected  boolean	checkAreaType(int t)           Tests if the specified area type is valid.
protected  int	getAreaType(LwComponent c, int x, int y)           Calculates and returns an area type for the specified component and the given location.
int	getCursorForArea(int t)           Returns the cursor type for the specified area type.
int	getCursorType(LwComponent target, int x, int y)           Returns the cursor type for the specified component and location relatively the component.
void	setCursorForArea(int t, int c)           Binds the specified area with the specified cursor type.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

TLEFT

public static final int TLEFT

Defines top-left area type.

TRIGHT

public static final int TRIGHT

Defines top-right area type.

BLEFT

public static final int BLEFT

Defines bottom-left area type.

BRIGHT

public static final int BRIGHT

Defines bottom-right area type.

InsetsCursorInfo

public InsetsCursorInfo()

Constructs a new insets cursor info.

getCursorType

public int getCursorType(LwComponent target,
                         int x,
                         int y)

Returns the cursor type for the specified component and location relatively the component. The method calculates what area contains the point (x, y) and returns a cursor type that is bound with the area.

Specified by:

getCursorType in interface Cursorable

Parameters:

target - the specified component.

x - the specified x coordinate relatively the component.

y - the specified y coordinate relatively the component.

setCursorForArea

public void setCursorForArea(int t,
                             int c)

Binds the specified area with the specified cursor type. If the area type is undefined than the IllegalArgumentException will be thrown.

Parameters:

t - the specified area type. Use one of the following constants as the argument value: LwToolkit.LEFT, LwToolkit.RIGHT, LwToolkit.TOP, LwToolkit.BOTTOM, LwToolkit.CENTER, InsetsCursorInfo.TLEFT, InsetsCursorInfo.TRIGHT, InsetsCursorInfo.BLEFT, InsetsCursorInfo.BRIGHT.

c - the specified cursor type.

getCursorForArea

public int getCursorForArea(int t)

Returns the cursor type for the specified area type. If the area type is undefined than the IllegalArgumentException will be thrown.

Returns:

a cursor type.

getAreaType

protected int getAreaType(LwComponent c,
                          int x,
                          int y)

Calculates and returns an area type for the specified component and the given location.

Parameters:

c - the specified component.

x - the specified x coordinate relatively the component.

y - the specified y coordinate relatively the component.

Returns:

an area type.

checkAreaType

protected boolean checkAreaType(int t)

Tests if the specified area type is valid. The method checks if the area type equals one of the following constant: LwToolkit.LEFT, LwToolkit.RIGHT, LwToolkit.TOP, LwToolkit.BOTTOM, LwToolkit.CENTER, InsetsCursorInfo.TLEFT, InsetsCursorInfo.TRIGHT, InsetsCursorInfo.BLEFT, InsetsCursorInfo.BRIGHT

Parameters:

t - the specified area type.

Returns:

true if the specified area type is valid; false otherwise.