Package org.loboevolution.events

Interface Touch

public interface Touch
Represents a single contact point on a touch-sensitive device
The contact point is commonly a finger or stylus and the device may be a touchscreen or trackpad.

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    getClientX()
    Returns the horizontal position of the touch on the client window of user's screen, excluding any scroll offset.
    double
    getClientY()
    Returns the vertical position of the touch on the client window of the user's screen, excluding any scroll offset.
    double
    getForce()
    Returns the amount of pressure being applied to the surface by the user, as a double between 0.0 (no pressure) and 1.0 (maximum pressure).
    double
    getIdentifier()
    Returns a unique identifier for this touch object.
    A given touch point (say, by a finger) will have the same identifier for the duration of its movement around the surface.
    This lets you ensure that you're tracking the same touch all the time.
    double
    getPageX()
    Returns the horizontal position of the touch on the client window of user's screen, including any scroll offset.
    double
    getPageY()
    Returns the horizontal position of the touch on the client window of user's screen, including any scroll offset.
    double
    getRadiusX()
    Returns the X radius of the ellipse that most closely circumscribes the area of contact with the screen.
    The value is in pixels of the same scale as screenX.
    double
    getRadiusY()
    Returns the Y radius of the ellipse that most closely circumscribes the area of contact with the screen.
    The value is in pixels of the same scale as screenY.
    double
    getRotationAngle()
    Returns the angle (in degrees) that the ellipse described by radiusX and radiusY must be rotated, clockwise, to most accurately cover the area of contact between the user and the surface.
    double
    getScreenX()
    Returns the horizontal position of the touch on the user's screen.
    double
    getScreenY()
    Returns the vertical position of the touch on the user's screen.
    EventTarget
    getTarget()
    Returns the element on which the touch point started when it was first placed on the surface, even if the touch point has since moved outside the interactive area of that element or even been removed from the document.

  • Method Details

    • getIdentifier

      double getIdentifier()
      Returns a unique identifier for this touch object.
      A given touch point (say, by a finger) will have the same identifier for the duration of its movement around the surface.
      This lets you ensure that you're tracking the same touch all the time.
      Returns:
      a unique identifier for this touch object

    • getTarget

      EventTarget getTarget()
      Returns the element on which the touch point started when it was first placed on the surface, even if the touch point has since moved outside the interactive area of that element or even been removed from the document.
      Returns:
      the element on which the touch point started when it was first placed on the surface

    • getClientX

      double getClientX()
      Returns the horizontal position of the touch on the client window of user's screen, excluding any scroll offset.
      Returns:
      the horizontal position of the touch on the client window of user's screen, excluding any scroll offset

    • getClientY

      double getClientY()
      Returns the vertical position of the touch on the client window of the user's screen, excluding any scroll offset.
      Returns:
      the vertical position of the touch on the client window of the user's screen, excluding any scroll offset

    • getScreenX

      double getScreenX()
      Returns the horizontal position of the touch on the user's screen.
      Returns:
      the horizontal position of the touch on the user's screen.

    • getScreenY

      double getScreenY()
      Returns the vertical position of the touch on the user's screen.
      Returns:
      the vertical position of the touch on the user's screen

    • getPageX

      double getPageX()
      Returns the horizontal position of the touch on the client window of user's screen, including any scroll offset.
      Returns:
      the horizontal position of the touch on the client window of user's screen, including any scroll offset

    • getPageY

      double getPageY()
      Returns the horizontal position of the touch on the client window of user's screen, including any scroll offset.
      Returns:
      the horizontal position of the touch on the client window of user's screen, including any scroll offset

    • getRadiusX

      double getRadiusX()
      Returns the X radius of the ellipse that most closely circumscribes the area of contact with the screen.
      The value is in pixels of the same scale as screenX.
      Returns:
      the X radius of the ellipse that most closely circumscribes the area of contact with the screen

    • getRadiusY

      double getRadiusY()
      Returns the Y radius of the ellipse that most closely circumscribes the area of contact with the screen.
      The value is in pixels of the same scale as screenY.
      Returns:
      the Y radius of the ellipse that most closely circumscribes the area of contact with the screen

    • getRotationAngle

      double getRotationAngle()
      Returns the angle (in degrees) that the ellipse described by radiusX and radiusY must be rotated, clockwise, to most accurately cover the area of contact between the user and the surface.
      Returns:
      the angle (in degrees) that the ellipse described by radiusX and radiusY must be rotated, clockwise, to most accurately cover the area of contact between the user and the surface

    • getForce

      double getForce()
      Returns the amount of pressure being applied to the surface by the user, as a double between 0.0 (no pressure) and 1.0 (maximum pressure).
      Returns:
      the amount of pressure being applied to the surface by the user