<CPTResponder> Protocol Reference

The basis of all event processing in Core Plot. More...

#import <CPTResponder.h>

Inheritance diagram for <CPTResponder>:

Collaboration diagram for <CPTResponder>:

Public Instance Methods
User Interaction
(BOOL)	- pointingDeviceDownEvent:atPoint:
	(Required) Informs the receiver that the user has touched the screen. More...
(BOOL)	- pointingDeviceUpEvent:atPoint:
	(Required) Informs the receiver that the user has lifted their finger off the screen. More...
(BOOL)	- pointingDeviceDraggedEvent:atPoint:
	(Required) Informs the receiver that the user has moved their finger while touching the screen. More...
(BOOL)	- pointingDeviceCancelledEvent:
	(Required) Informs the receiver that tracking of touches has been cancelled for any reason. More...
Public Instance Methods inherited from <NSObject>
(NSString *)	- description
(NSUInteger)	- hash
(BOOL)	- isEqual:

Detailed Description

The basis of all event processing in Core Plot.

Method Documentation

pointingDeviceCancelledEvent:

- (BOOL) pointingDeviceCancelledEvent:

(nonnull CPTNativeEvent *)

event

(Required) Informs the receiver that tracking of touches has been cancelled for any reason.

Parameters

event

The OS event.

Returns

Whether the event was handled or not.

Reimplemented in CPTGraph, CPTPlotSpace, CPTAnnotationHostLayer, and CPTPlotAreaFrame.

pointingDeviceDownEvent:atPoint:

- (BOOL) pointingDeviceDownEvent:		(nonnull CPTNativeEvent *)	event
atPoint:		(CGPoint)	interactionPoint

(Required) Informs the receiver that the user has touched the screen.

Parameters

event	The OS event.
interactionPoint	The coordinates of the interaction.

Returns

Whether the event was handled or not.

Reimplemented in CPTPieChart, CPTPlot, CPTTradingRangePlot, CPTRangePlot, CPTBarPlot, CPTScatterPlot, CPTGraph, CPTLegend, CPTPlotArea, CPTPlotSpace, CPTAnnotationHostLayer, CPTAxis, CPTAxisSet, CPTPlotAreaFrame, and CPTXYPlotSpace.

pointingDeviceDraggedEvent:atPoint:

- (BOOL) pointingDeviceDraggedEvent:		(nonnull CPTNativeEvent *)	event
atPoint:		(CGPoint)	interactionPoint

(Required) Informs the receiver that the user has moved their finger while touching the screen.

Parameters

event	The OS event.
interactionPoint	The coordinates of the interaction.

Returns

Whether the event was handled or not.

Reimplemented in CPTGraph, CPTPlotSpace, CPTAnnotationHostLayer, CPTPlotAreaFrame, and CPTXYPlotSpace.

pointingDeviceUpEvent:atPoint:

- (BOOL) pointingDeviceUpEvent:		(nonnull CPTNativeEvent *)	event
atPoint:		(CGPoint)	interactionPoint

(Required) Informs the receiver that the user has lifted their finger off the screen.

Parameters

event	The OS event.
interactionPoint	The coordinates of the interaction.

Returns

Whether the event was handled or not.

Reimplemented in CPTPieChart, CPTPlot, CPTTradingRangePlot, CPTRangePlot, CPTBarPlot, CPTScatterPlot, CPTGraph, CPTLegend, CPTPlotArea, CPTPlotSpace, CPTAnnotationHostLayer, CPTAxis, CPTAxisSet, CPTPlotAreaFrame, and CPTXYPlotSpace.

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The documentation for this protocol was generated from the following file:

• Source/CPTResponder.h