Class Ticker

  Object
      Component
          Label
              Ticker

public class Ticker
extends Label

Implements a "ticker-tape", a piece of text that runs continuously across the component area. Ticker animation starts automatically when it's first painted on screen and stops when it's no longer visible. When the text is changed with Component.setText(String) the ticker animation starts from the beginning.

Ticker has following special style customizations:

• color: Color of text
• font: Font of text
• ticker-speed: Time reserved for individual character in milliseconds, if speed is less or equal to zero the ticker will behave like normal Label. For instance, if ticker-speed is 0 for normal style and something else for focused variant, the animation starts only after it has been focused.
• ticker-mode:
  • loop: ticker moves in a loop mode
  • bounce: ticker bounces back and forth

Loop

On loop mode the text is initially positioned just over right border of component area so that none of the text is visible. When animation begins it moves from right-to-left until it has completely passed over the left border of component area. After whole loop has been been completed the Ticker sends ITEM_CHANGED action with itself as source. Text of ticker can be safely changed (without interrupting the animation) when action is received.

Bounce

On bounce mode the text is always (partially) visible and it animates between states where first character touches the left border and last character touches the right border. If the text is smaller than available area it will not animate at all.

Constructor Summary

Ticker(Style style, String text)
Constructs a new Ticker component.

Method Summary

Methods inherited from class Component

add, appendText, clear, find, first, get, getAction, getData, getElement, getFlags, getImage, getLocation, getParent, getShell, getSize, getStyle, getText, getViewPort, hasLinefeed, indexOf, insert, isFocusable, isShown, isVisible, isWrapping, last, operator_get, operator_set, remove, remove, repaint, set, setAction, setData, setElement, setFlags, setImage, setLocation, setPreferredHeight, setPreferredSize, setPreferredWidth, setStyle, setText, size

Methods inherited from class Object

toString, equals, hashCode

Methods inherited from

equals, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Ticker

public Ticker(Style style,
              String text)

Constructs a new Ticker component.

Parameters:

style - Style to use

text - Text to use