ej.microui.display.transform

Class ImageFlip

java.lang.Object

ej.microui.display.transform.AbstractTransform

ej.microui.display.transform.ImageFlip

public class ImageFlip
extends AbstractTransform

This class holds a context in order to perform a flip on images (0, 90, 180 or 270 degrees).

An image flip instance holds a global state for all drawings. Several instances can be created at the same time. However a default instance is created on MicroUI framework startup and is always available.

Since:

2.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ImageFlip.Action Specify the flip to apply when drawing an image.

Field Summary

Fields

Modifier and Type	Field and Description
static ImageFlip	Singleton Default instance created on MicroUI framework startup.

Constructor Summary

Constructors

Constructor and Description
ImageFlip()

Method Summary

Modifier and Type	Method and Description
void	draw(GraphicsContext gc, Image image, int x, int y, int anchor) Draw the Image in the GraphicsContext at given anchor position and using the current ImageFlip.Action.
ImageFlip.Action	getAction() Returns the current ImageFlip.Action.
void	setAction(ImageFlip.Action action) Set the new ImageFlip.Action.

Methods inherited from class ej.microui.display.transform.AbstractTransform

getAlpha, getTranslateX, getTranslateY, isMirrored, resetAlpha, resetTranslate, setAlpha, setMirror, translate

Methods inherited from class java.lang.Object

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

Field Detail

Singleton

public static final ImageFlip Singleton

Default instance created on MicroUI framework startup.

Constructor Detail

ImageFlip

public ImageFlip()

Method Detail

getAction

public ImageFlip.Action getAction()

Returns the current ImageFlip.Action.

Returns:

the current ImageFlip.Action.

setAction

public void setAction(ImageFlip.Action action)

Set the new ImageFlip.Action.

Parameters:

action - the action to set.

draw

public void draw(GraphicsContext gc,
                 Image image,
                 int x,
                 int y,
                 int anchor)

Draw the Image in the GraphicsContext at given anchor position and using the current ImageFlip.Action.

Parameters:

gc - the GraphicsContext where to render the drawing.

image - the Image to draw

x - the x coordinate of the image reference anchor point

y - the y coordinate of the image reference anchor point

anchor - position of the image reference point around the anchor point

Throws:

java.lang.NullPointerException - if @{code image} or @{code gc} is @{code null}

java.lang.IllegalArgumentException - if anchor is not a valid value (BASELINE is illegal).