Class Event

    • Field Summary

      Fields 
      Modifier and Type Field Description
      int button
      the button that was pressed or released; 1 for the first button, 2 for the second button, and 3 for the third button, etc.
      char character
      depending on the event, the character represented by the key that was typed.
      int count
      depending on the event type, the number of following paint events that are pending which may always be zero on some platforms, or the number of lines or pages to scroll using the mouse wheel, or the number of times the mouse has been clicked
      Object data
      a field for application use
      int detail
      the event specific detail field, as defined by the detail constants in class SWT
      Display display
      the display where the event occurred
      boolean doit
      depending on the event, a flag indicating whether the operation should be allowed.
      int end
      depending on the event, the range of text being modified.
      GC gc
      the graphics context to use when painting that is configured to use the colors, font and damaged region of the control.
      int height
      the height of the bounding rectangle of the region that requires painting
      int index
      the index of the item where the event occurred
      Widget item
      the item that the event occurred in (can be null)
      int keyCode
      depending on the event, the key code of the key that was typed, as defined by the key code constants in class SWT.
      int keyLocation
      depending on the event, the location of key specified by the keyCode or character.
      double magnification
      The change in magnification.
      double rotation
      The number of degrees rotated on the track pad.
      int[] segments
      Bidi segment offsets
      char[] segmentsChars
      Characters to be applied on the segment boundaries
      int start
      depending on the event, the range of text being modified.
      int stateMask
      depending on the event, the state of the keyboard modifier keys and mouse masks at the time the event was generated.
      String text
      depending on the event, the new text that will be inserted.
      int time
      the time that the event occurred.
      Touch[] touches
      An array of the touch states for the current touch event.
      int type
      the type of event, as defined by the event type constants in class SWT
      Widget widget
      the widget that issued the event
      int width
      the width of the bounding rectangle of the region that requires painting
      int x
      depending on the event type, the x offset of the bounding rectangle of the region that requires painting or the widget-relative, x coordinate of the pointer at the time the mouse button was pressed or released
      int xDirection
      If nonzero, a positive value indicates a swipe to the right, and a negative value indicates a swipe to the left.
      int y
      depending on the event type, the y offset of the bounding rectangle of the region that requires painting or the widget-relative, y coordinate of the pointer at the time the mouse button was pressed or released
      int yDirection
      If nonzero, a positive value indicates a swipe in the up direction, and a negative value indicates a swipe in the down direction.
    • Constructor Summary

      Constructors 
      Constructor Description
      Event()  
    • Field Detail

      • display

        public Display display
        the display where the event occurred
        Since:
        2.0
      • widget

        public Widget widget
        the widget that issued the event
      • type

        public int type
        the type of event, as defined by the event type constants in class SWT
        See Also:
        SWT
      • detail

        public int detail
        the event specific detail field, as defined by the detail constants in class SWT
        See Also:
        SWT
      • item

        public Widget item
        the item that the event occurred in (can be null)
      • index

        public int index
        the index of the item where the event occurred
        Since:
        3.2
      • gc

        public GC gc
        the graphics context to use when painting that is configured to use the colors, font and damaged region of the control. It is valid only during the paint and must not be disposed
      • x

        public int x
        depending on the event type, the x offset of the bounding rectangle of the region that requires painting or the widget-relative, x coordinate of the pointer at the time the mouse button was pressed or released
      • y

        public int y
        depending on the event type, the y offset of the bounding rectangle of the region that requires painting or the widget-relative, y coordinate of the pointer at the time the mouse button was pressed or released
      • width

        public int width
        the width of the bounding rectangle of the region that requires painting
      • height

        public int height
        the height of the bounding rectangle of the region that requires painting
      • count

        public int count
        depending on the event type, the number of following paint events that are pending which may always be zero on some platforms, or the number of lines or pages to scroll using the mouse wheel, or the number of times the mouse has been clicked
      • time

        public int time
        the time that the event occurred. NOTE: This field is an unsigned integer and should be AND'ed with 0xFFFFFFFFL so that it can be treated as a signed long.
      • button

        public int button
        the button that was pressed or released; 1 for the first button, 2 for the second button, and 3 for the third button, etc.
      • character

        public char character
        depending on the event, the character represented by the key that was typed. This is the final character that results after all modifiers have been applied. For example, when the user types Ctrl+A, the character value is 0x01 (ASCII SOH). It is important that applications do not attempt to modify the character value based on a stateMask (such as SWT.CTRL) or the resulting character will not be correct.
      • keyCode

        public int keyCode
        depending on the event, the key code of the key that was typed, as defined by the key code constants in class SWT. When the character field of the event is ambiguous, this field contains the unaffected value of the original character. For example, typing Ctrl+M or Enter both result in the character '\r' but the keyCode field will also contain '\r' when Enter was typed and 'm' when Ctrl+M was typed.
        See Also:
        SWT
      • keyLocation

        public int keyLocation
        depending on the event, the location of key specified by the keyCode or character. The possible values for this field are SWT.LEFT, SWT.RIGHT, SWT.KEYPAD, or SWT.NONE representing the main keyboard area.

        The location field can be used to differentiate key events that have the same key code and character but are generated by different keys in the keyboard. For example, a key down event with the key code equals to SWT.SHIFT can be generated by the left and the right shift keys in the keyboard. The location field can only be used to determine the location of the key code or character in the current event. It does not include information about the location of modifiers in state mask.

        Since:
        3.6
        See Also:
        SWT.LEFT, SWT.RIGHT, SWT.KEYPAD
      • stateMask

        public int stateMask
        depending on the event, the state of the keyboard modifier keys and mouse masks at the time the event was generated.
        See Also:
        SWT.MODIFIER_MASK, SWT.BUTTON_MASK
      • start

        public int start
        depending on the event, the range of text being modified. Setting these fields only has effect during ImeComposition events.
      • end

        public int end
        depending on the event, the range of text being modified. Setting these fields only has effect during ImeComposition events.
      • text

        public String text
        depending on the event, the new text that will be inserted. Setting this field will change the text that is about to be inserted or deleted.
      • segments

        public int[] segments
        Bidi segment offsets
        Since:
        3.8
      • segmentsChars

        public char[] segmentsChars
        Characters to be applied on the segment boundaries
        Since:
        3.8
      • doit

        public boolean doit
        depending on the event, a flag indicating whether the operation should be allowed. Setting this field to false will cancel the operation.
      • data

        public Object data
        a field for application use
      • touches

        public Touch[] touches
        An array of the touch states for the current touch event.
        Since:
        3.7
      • xDirection

        public int xDirection
        If nonzero, a positive value indicates a swipe to the right, and a negative value indicates a swipe to the left.
        Since:
        3.7
      • yDirection

        public int yDirection
        If nonzero, a positive value indicates a swipe in the up direction, and a negative value indicates a swipe in the down direction.
        Since:
        3.7
      • magnification

        public double magnification
        The change in magnification. This value should be added to the current scaling of an item to get the new scale factor.
        Since:
        3.7
      • rotation

        public double rotation
        The number of degrees rotated on the track pad.
        Since:
        3.7
    • Constructor Detail

      • Event

        public Event()
    • Method Detail

      • getBounds

        public Rectangle getBounds()
        Gets the bounds.
        Returns:
        a rectangle that is the bounds.
      • setBounds

        public void setBounds​(Rectangle rect)
        Sets the bounds.
        Parameters:
        rect - the new rectangle
      • 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