Class adf.DrawCircleAction
Extends
adf.Action.
Defined in: Action.js.
| Constructor Attributes | Constructor Name and Description |
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Extends adf.Action and handles user interation with the mouse to draw a circle shape onto
an instance of adf.graphics.Element.
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- Fields borrowed from class adf.Action:
- cursor, graphicsZIndex, name, symbol
| Method Attributes | Method Name and Description |
|---|---|
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activate(element, callBack, continuousCallBack, graphicsElement)
This method activates the action and registers the required event listeners.
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Deactivates the action and the event listeners set by this action
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Reactivates the action and the event listeners set by this action
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Class Detail
adf.DrawCircleAction()
Extends adf.Action and handles user interation with the mouse to draw a circle shape onto
an instance of adf.graphics.Element.
Method Detail
activate(element, callBack, continuousCallBack, graphicsElement)
This method activates the action and registers the required event listeners. The second parameter
callBack()
will be called when the onmouseup event is fired by the browser and will receive two parameters, an instance
of adf.Point representing the center point (with respect to the coordinates of the element receiving the events), and
an integer representing the radius of the circle in pixels. The third parmater continuousCallBack() will
be called each time the onmousemove event has been fired by the browser and it will receive the exact
same parameters as callBack(), with the only difference being the radius value will be based on the
current position of the mouse pointer at the time the onmousemove event was fired.
- Parameters:
- {HTMLElement} element
- The HTMLElement that is the action's container on which the events are attached
- {Function} callBack
- Sallback function to be called after action is completed
- {Function} continuousCallBack
- Continuous Callback function is called as the circle is being drawn
- {adf.graphics.Element} graphicsElement
- Parameter to set graphics container for the action.
deactivate()
Deactivates the action and the event listeners set by this action
reactivate()
Reactivates the action and the event listeners set by this action