Package org.htmlparser.lexerapplications.thumbelina

Class Sequencer

  • All Implemented Interfaces:
    java.lang.Runnable
    public class Sequencer
extends java.lang.Thread
    Display received images at a constant rate.

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.lang.Thread

        java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected static int DEFAULT_DELAY
      The default delay time, 500 milliseconds.
      protected boolean mActive
      Activity state.
      protected int mDelay
      Delay between picture displays.
      protected java.util.ArrayList mPending
      Pictures awaiting display.
      protected java.util.Random mRandom
      Random number generator for picture placement.
      protected Thumbelina mThumbelina
      The thumbelina object to drive.

      • Fields inherited from class java.lang.Thread

        MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

    • Constructor Summary

      Constructors 
      Constructor Description
      Sequencer​(Thumbelina thumbelina)
      Creates a new instance of a Sequencer.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void add​(java.awt.Image image, java.net.URL url)
      Add an image to the pending list.
      void add​(java.awt.Image image, java.net.URL url, boolean background)
      Add an image to the panel.
      int getDelay()
      Getter for property delay.
      protected void place​(Picture picture, boolean add)
      Place a picture in the display area.
      protected java.awt.Point random​(java.lang.String url, int width, int height)
      Compute a random point to load the image.
      void reset()
      Clears the pending images list.
      void run()
      Display pictures from pending list with delay between.
      void setDelay​(int delay)
      Setter for property delay.

      • Methods inherited from class java.lang.Thread

        activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • DEFAULT_DELAY

        protected static final int DEFAULT_DELAY
        The default delay time, 500 milliseconds.
        See Also:
        Constant Field Values

      • mThumbelina

        protected Thumbelina mThumbelina
        The thumbelina object to drive.

      • mPending

        protected java.util.ArrayList mPending
        Pictures awaiting display.

      • mActive

        protected boolean mActive
        Activity state. true means fetching and displaying, false not.

      • mDelay

        protected int mDelay
        Delay between picture displays.

      • mRandom

        protected java.util.Random mRandom
        Random number generator for picture placement.

    • Constructor Detail

      • Sequencer

        public Sequencer​(Thumbelina thumbelina)
        Creates a new instance of a Sequencer.
        Parameters:
        thumbelina - The object to push images to.

    • Method Detail

      • reset

        public void reset()
        Clears the pending images list.

      • random

        protected java.awt.Point random​(java.lang.String url,
                                int width,
                                int height)
        Compute a random point to load the image. Generate a random point for one of the corners of the image and then condition the numbers so the image is on screen.
        Parameters:
        url - The url this picture was fetched from. Used in computing the random position, so the picture is always placed in the same location, even when refetched.
        width - The width of the image.
        height - The height of the image.
        Returns:
        The random point to use.

      • add

        public void add​(java.awt.Image image,
                java.net.URL url)
        Add an image to the pending list.
        Parameters:
        image - The image to add.
        url - The url the image came from.

      • add

        public void add​(java.awt.Image image,
                java.net.URL url,
                boolean background)
        Add an image to the panel.
        Parameters:
        image - The image to add.
        url - The url the image came from.
        background - If true, just add to pending list.

      • place

        protected void place​(Picture picture,
                     boolean add)
        Place a picture in the display area. Places the picture at a random location on screen.
        Parameters:
        picture - The picture to place on screen.
        add - If true, the picture is added to the history.

      • run

        public void run()
        Display pictures from pending list with delay between. If the list is empty it waits on the pending list for new pictures.
        Specified by:
        run in interface java.lang.Runnable
        Overrides:
        run in class java.lang.Thread

      • getDelay

        public int getDelay()
        Getter for property delay.
        Returns:
        Value of property delay.

      • setDelay

        public void setDelay​(int delay)
        Setter for property delay.
        Parameters:
        delay - New value of property delay.