Class Touch

java.lang.Object
org.eclipse.swt.widgets.Touch
public final class Touch extends Object
Instances of this class are created in response to a touch-based input device being touched. They are found in the touches field of an Event or TouchEvent.
Since:
3.7
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    long
    id
    The unique identity of the touch.
    boolean
    primary
    A flag indicating that the touch is the first touch from a previous state of no touch points.
    TouchSource
    source
    The object representing the input source that generated the touch.
    int
    state
    The state of this touch at the time it was generated.
    int
    x
    The x location of the touch in TouchSource coordinates.
    int
    y
    The y location of the touch in TouchSource coordinates.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Touch(long identity, TouchSource source, int state, boolean primary, int x, int y)
    Constructs a new touch state from the given inputs.

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    toString()
    Returns a string containing a concise, human-readable description of the receiver.

    Methods inherited from class Object

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

  • Field Details

    • id

      public long id
      The unique identity of the touch. Use this value to track changes to a touch during the touch's life. Two touches may have the same identity even if they come from different sources.

    • source

      public TouchSource source
      The object representing the input source that generated the touch.

    • state

      public int state
      The state of this touch at the time it was generated. If this field is 0 then the finger is still touching the device but has not moved since the last TouchEvent was generated.
      See Also:

    • primary

      public boolean primary
      A flag indicating that the touch is the first touch from a previous state of no touch points. Once designated as such, the touch remains the primary touch until all fingers are removed from the device.

    • x

      public int x
      The x location of the touch in TouchSource coordinates.

    • y

      public int y
      The y location of the touch in TouchSource coordinates.

  • Constructor Details

    • Touch

      Touch(long identity, TouchSource source, int state, boolean primary, int x, int y)
      Constructs a new touch state from the given inputs.
      Parameters:
      identity - Identity of the touch
      source - Object representing the device that generated the touch
      state - One of the state constants representing the state of this touch
      primary - Whether or not the touch is the primary touch
      x - X location of the touch in screen coordinates
      y - Y location of the touch in screen coordinates

  • Method Details

    • toString

      public String toString()
      Returns a string containing a concise, human-readable description of the receiver.
      Overrides:
      toString in class Object
      Returns:
      a string representation of the event