Class MouseWheelEvent

java.lang.Object

java.util.EventObject

java.awt.AWTEvent

vaadinx.awt.event.ComponentEvent

vaadinx.awt.event.InputEvent

vaadinx.awt.event.MouseEvent

vaadinx.awt.event.MouseWheelEvent

All Implemented Interfaces:

Serializable

public class MouseWheelEvent
extends MouseEvent

Port of MouseWheelEvent. Extends our MouseEvent — carries scroll type, scroll amount, integer rotation, and high-precision rotation (smooth-scrolling wheels).

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	WHEEL_BLOCK_SCROLL
static final int	WHEEL_UNIT_SCROLL

Fields inherited from class MouseEvent

BUTTON1, BUTTON2, BUTTON3, MOUSE_CLICKED, MOUSE_DRAGGED, MOUSE_ENTERED, MOUSE_EXITED, MOUSE_FIRST, MOUSE_LAST, MOUSE_MOVED, MOUSE_PRESSED, MOUSE_RELEASED, MOUSE_WHEEL, NOBUTTON

Fields inherited from class InputEvent

ALT_DOWN_MASK, ALT_GRAPH_DOWN_MASK, ALT_GRAPH_MASK, ALT_MASK, BUTTON1_DOWN_MASK, BUTTON1_MASK, BUTTON2_DOWN_MASK, BUTTON2_MASK, BUTTON3_DOWN_MASK, BUTTON3_MASK, CTRL_DOWN_MASK, CTRL_MASK, META_DOWN_MASK, META_MASK, SHIFT_DOWN_MASK, SHIFT_MASK

Fields inherited from class ComponentEvent

COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN

Fields inherited from class AWTEvent

ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK

Fields inherited from class EventObject

source

Constructor Summary

Constructors

Constructor	Description
MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation)
MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation)
MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation, double preciseWheelRotation)

Method Summary

Modifier and Type	Method	Description
double	getPreciseWheelRotation()
int	getScrollAmount()
int	getScrollType()
int	getUnitsToScroll()	How far each click of the wheel should scroll if the current scroll type is WHEEL_UNIT_SCROLL.
int	getWheelRotation()
String	paramString()

Methods inherited from class MouseEvent

getButton, getClickCount, getLocationOnScreen, getMouseModifiersText, getPoint, getX, getXOnScreen, getY, getYOnScreen, isPopupTrigger, translatePoint

Methods inherited from class InputEvent

consume, getMaskForButton, getModifiers, getModifiersEx, getModifiersExText, getWhen, isAltDown, isAltGraphDown, isConsumed, isControlDown, isMetaDown, isShiftDown

Methods inherited from class ComponentEvent

getComponent

Methods inherited from class AWTEvent

getID, setSource, toString

Methods inherited from class EventObject

getSource

Methods inherited from class Object

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

Field Details

WHEEL_UNIT_SCROLL

public static final int WHEEL_UNIT_SCROLL

See Also:

• Constant Field Values

WHEEL_BLOCK_SCROLL

public static final int WHEEL_BLOCK_SCROLL

See Also:

• Constant Field Values

Constructor Details

MouseWheelEvent

public MouseWheelEvent(Component source,
 int id,
 long when,
 int modifiers,
 int x,
 int y,
 int clickCount,
 boolean popupTrigger,
 int scrollType,
 int scrollAmount,
 int wheelRotation)

MouseWheelEvent

public MouseWheelEvent(Component source,
 int id,
 long when,
 int modifiers,
 int x,
 int y,
 int xAbs,
 int yAbs,
 int clickCount,
 boolean popupTrigger,
 int scrollType,
 int scrollAmount,
 int wheelRotation)

MouseWheelEvent

public MouseWheelEvent(Component source,
 int id,
 long when,
 int modifiers,
 int x,
 int y,
 int xAbs,
 int yAbs,
 int clickCount,
 boolean popupTrigger,
 int scrollType,
 int scrollAmount,
 int wheelRotation,
 double preciseWheelRotation)

Method Details

getScrollType

public int getScrollType()

getScrollAmount

public int getScrollAmount()

getWheelRotation

public int getWheelRotation()

getPreciseWheelRotation

public double getPreciseWheelRotation()

getUnitsToScroll

public int getUnitsToScroll()

How far each click of the wheel should scroll if the current scroll type is WHEEL_UNIT_SCROLL. AWT returns a computed value from the underlying component's scroll unit; we return the raw scrollAmount * rotation so callers get the same "total units" semantics.

paramString

public String paramString()

Overrides:

paramString in class MouseEvent