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Class symantec.itools.multimedia.MovingAnimation

Object
   |
   +----Component
           |
           +----Canvas
                   |
                   +----Animator
                           |
                           +----symantec.itools.multimedia.MovingAnimation

public class MovingAnimation

extends Animator

implements Runnable

Version:

1.0, Nov 26, 1996

Author:

Symantec

See Also:

Animator

loopslot

Index of the image to draw.

shiftOffset

The amount each image is shifted horizontally from the previous image.

symantec.itools.multimedia.MovingAnimation()

Constructs a default MovingAnimation.

addPropertyChangeListener(PropertyChangeListener)

Adds a listener for all event changes.

addVetoableChangeListener(VetoableChangeListener)

Adds a vetoable listener for all event changes.

getShiftOffset()

Gets the animation shift offset.

imageUpdate(Image, int, int, int, int, int)

Incrementally updates an image as image data becomes available.

paint(Graphics)

Paints this component using the given graphics context.

removePropertyChangeListener(PropertyChangeListener)

Removes a listener for all event changes.

removeVetoableChangeListener(VetoableChangeListener)

Removes a vetoable listener for all event changes.

run()

Body of MovingAnimation Thread.

setShiftOffset(int)

Sets the animation shift offset.

protected transient int loopslot

Index of the image to draw. A loop counter.

protected int shiftOffset

The amount each image is shifted horizontally from the previous image. The offset may be positive or negative. If the offset is positive, the first image is drawn on the left side of the component and subsequent images are drawn to the right of the first image by offset pixels. If the offset is negative, the first image is drawn at the right side of the component area.

public MovingAnimation()

Constructs a default MovingAnimation.

public void addPropertyChangeListener(PropertyChangeListener listener)

Adds a listener for all event changes.

Parameters:

PropertyChangeListener - listener the listener to add.

Overrides:

addPropertyChangeListener in class Animator

See Also:

removePropertyChangeListener

public void addVetoableChangeListener(VetoableChangeListener listener)

Adds a vetoable listener for all event changes.

Parameters:

VetoableChangeListener - listener the listener to add.

Overrides:

addVetoableChangeListener in class Animator

See Also:

removeVetoableChangeListener

public int getShiftOffset()

Gets the animation shift offset.

Returns:

int current shift offset amount, in pixels

See Also:

setShiftOffset

public boolean imageUpdate(Image img,
                           int flags,
                           int x,
                           int y,
                           int w,
                           int h)

Incrementally updates an image as image data becomes available. This is a standard Java AWT method which gets called by the AWT to incrementally draw an image as more image data becomes available.

Parameters:

img - the image being drawn

flags - image update flags (see class ImageObserver)

x - horizontal position

y - vertical position

w - width

h - height

Returns:

true if image has been completely loaded

Overrides:

imageUpdate in class Component

See Also:

ImageObserver, imageUpdate

public void paint(Graphics g)

Paints this component using the given graphics context. This is a standard Java AWT method which typically gets called by the AWT to handle painting this component. It paints this component using the given graphics context. The graphics context clipping region is set to the bounding rectangle of this component and its <0,0> coordinate is this component's top-left corner. The horizontal position of the image is shifted according to the current offset.

Parameters:

g - the graphics context used for painting

Overrides:

paint in class Animator

See Also:

repaint, update

public void removePropertyChangeListener(PropertyChangeListener listener)

Removes a listener for all event changes.

Parameters:

PropertyChangeListener - listener the listener to remove.

Overrides:

removePropertyChangeListener in class Animator

See Also:

addPropertyChangeListener

public void removeVetoableChangeListener(VetoableChangeListener listener)

Removes a vetoable listener for all event changes.

Parameters:

VetoableChangeListener - listener the listener to remove.

Overrides:

removeVetoableChangeListener in class Animator

See Also:

addVetoableChangeListener

public void run()

Body of MovingAnimation Thread. This method is called by the Java Virtual Machine in response to a call to the start method of this object.

Overrides:

run in class Animator

public void setShiftOffset(int newShiftOffset) throws PropertyVetoException

Sets the animation shift offset. Each image is shifted horizontally from the previous image by the specified offset. Offset may be positive or negative. If the offset is positive, the first image is drawn on the left side of the component and subsequent images are drawn to the right of the first image by offset pixels. If the offset is negative, the first image is drawn at the right side of the component area.

Parameters:

newShiftOffset - shift offset amount, in pixels

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

getShiftOffset

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