ZoomOperator

class HPS.ZoomOperator : public HPS.Operator

The ZoomOperator class defines an operator which allows the user to zoom the camera. This Operator works for both mouse- and touch-driven devices. Mouse-Driven Devices: Left button pressed and move: Zoom camera Touch-Driven Devices: Pinch: Zoom camera

Public Functions

override void Dispose ()

override string GetName ()

Returns the name of the operator.

override bool OnMouseDown (HPS.MouseState in_state)

This function is called whenever HPS receives a MouseEvent that signals a mouse button was pressed. This function starts the operator and computes the position of the starting point.

Param in_state

A MouseState object describing the current mouse state.

Return

true if the input event was handled, false otherwise.

override bool OnMouseMove (HPS.MouseState in_state)

This function is called whenever HPS receives a MouseEvent that signals the mouse moved This function zooms the camera as needed.

Param in_state

A MouseState object describing the current mouse state.

Return

true if the input event was handled, false otherwise.

override bool OnMouseUp (HPS.MouseState in_state)

This function is called whenever HPS receives a MouseEvent that signals a mouse button was released. This function stops the operator.

Param in_state

A MouseState object describing the current mouse state.

Return

true if the input event was handled, false otherwise.

override bool OnTouchDown (HPS.TouchState in_state)

This function is called whenever HPS receives a TouchEvent that signals the device was touched. This function starts the operator and computes the position of the starting point.

Param in_state

A TouchState object describing the current touch state.

Return

true if the input event was handled, false otherwise.

override bool OnTouchMove (HPS.TouchState in_state)

This function is called whenever HPS receives a TouchEvent that signals a point of contact has moved. This function zooms the camera as needed.

Param in_state

A TouchState object describing the current touch state.

Return

true if the input event was handled, false otherwise.

ZoomOperator ()

ZoomOperator (HPS.MouseButtons in_mouse_trigger)

ZoomOperator (HPS.MouseButtons in_mouse_trigger, HPS.ModifierKeys in_modifier_trigger)

ZoomOperator (HPS.ZoomOperator in_that)