com.imsl.chart
Class PickEvent

java.lang.Object
  java.util.EventObject
      java.awt.AWTEvent
          java.awt.event.ComponentEvent
              java.awt.event.InputEvent
                  java.awt.event.MouseEvent
                      com.imsl.chart.PickEvent

All Implemented Interfaces:

Serializable

public class PickEvent
extends MouseEvent

An event that indicates that a chart element has been selected.

See Also:

PickListener, Chart Programmer's Guide: Picking, Serialized Form

Field Summary

Fields inherited from class java.awt.event.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 java.awt.event.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 java.awt.event.ComponentEvent

COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN

Fields inherited from class java.awt.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 java.util.EventObject

source

Constructor Summary

PickEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger)
Construct a PickEvent object at point (x,y).

PickEvent(MouseEvent event)
Construct a PickEvent object.

Method Summary

ChartNode	getNode() Gets this ChartNode.
static double	pointToLine(int Px, int Py, int[] devA, int[] devB) Compute the distance from the point (Px,Py) to the line segment AB.
void	setNode(ChartNode node) Sets the ChartNode.

Methods inherited from class java.awt.event.MouseEvent

getButton, getClickCount, getMouseModifiersText, getPoint, getX, getY, isPopupTrigger, paramString, translatePoint

Methods inherited from class java.awt.event.InputEvent

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

Methods inherited from class java.awt.event.ComponentEvent

getComponent

Methods inherited from class java.awt.AWTEvent

getID, setSource, toString

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

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

Constructor Detail

PickEvent

public PickEvent(Component source,
                 int id,
                 long when,
                 int modifiers,
                 int x,
                 int y,
                 int clickCount,
                 boolean popupTrigger)

Construct a PickEvent object at point (x,y).

Parameters:

source - the Component that originated the event

id - an int that identifies the event

when - a long that gives the time the event occurred

modifiers - an int that gives the modifier keys down during event (e.g. shift, ctrl, alt, meta)

x - an int, the x coordinate of the point (x,y)

y - an int, the y coordinate of the point (x,y)

clickCount - an int which specifies the number of mouse button clicks necessary to trigger the event

popupTrigger - is a boolean, true if this event is a trigger for a popup menu

PickEvent

public PickEvent(MouseEvent event)

Construct a PickEvent object.

Parameters:

event - a MouseEvent

Method Detail

getNode

public ChartNode getNode()

Gets this ChartNode.

pointToLine

public static double pointToLine(int Px,
                                 int Py,
                                 int[] devA,
                                 int[] devB)

Compute the distance from the point (Px,Py) to the line segment AB. If the closest point from P to the line AB is not between A and B then the distance to the closer of A and B is returned.

Parameters:

Px - an int, the x coordinate of the point (Px,Py)

Py - an int, the y coordinate of the point (Px,Py)

devA - an int array which contains the point which defines the head of the line segment.

devB - an int array which contains the point which defines the tail of the line segment.

Returns:

a double, the distance from the point (Px,Py) to the line segment AB.

setNode

public void setNode(ChartNode node)

Sets the ChartNode.

Parameters:

node - the ChartNode to be set