Alphabetical Class Index  Class Hierarchy   File Members   Compound Members   File List  

HOpCameraZoomTouch Class Reference

The HOpCameraZoomTouch class zooms the camera toward a target. More...

#include <HOpCameraZoomTouch.h>

List of all members.

Public Member Functions

virtual HBaseOperatorClone ()
bool GetLightFollowsCamera ()
virtual const char * GetName ()
 HOpCameraZoomTouch (HBaseView *view, int DoRepeat=0, int DoCapture=1)
virtual int OnTouchesDown (HEventInfo &hevent)
virtual int OnTouchesMove (HEventInfo &hevent)
virtual int OnTouchesUp (HEventInfo &hevent)
void SetLightFollowsCamera (bool follow)

Detailed Description

The HOpCameraZoomTouch class zooms the camera toward a target.

HOpCameraZoomTouch implements three of the touch handlers defined on the base class and maps the event information to HOOPS camera routines based on a two finger pinching motion. This provides the basic functionality for interactively zooming in or out from a model in realtime.

More Detailed Description: see event methods.


Constructor & Destructor Documentation

HOpCameraZoomTouch::HOpCameraZoomTouch ( HBaseView view,
int  DoRepeat = 0,
int  DoCapture = 1 
)

Constructs an HOpCameraZoomTouch object.

Parameters:
viewA pointer to an HBaseView object.
DoRepeatAn integer denoting whether this is a repeatable operator. This parameter has been deprecated.
DoCaptureAn integer denoting whether the mouse state should be captured, which means that all mouse events should be received after a mousedown, even if it leaves the window. This parameter has been deprecated.

Member Function Documentation

virtual HBaseOperator* HOpCameraZoomTouch::Clone ( ) [virtual]

Creates a new operator which is a copy of the current operator. The user is responsible for deleting the newly created operator.

Returns:
A pointer to the newly created HOpCameraZoomTouch object.

Reimplemented from HBaseOperator.

bool HOpCameraZoomTouch::GetLightFollowsCamera ( ) [inline]
Returns:
True if the light follows the camera or false if it doesn't.
virtual const char* HOpCameraZoomTouch::GetName ( ) [virtual]
Returns:
A pointer to a character string denoting the name of the operator which is 'HOpCameraZoomTouch'.

Reimplemented from HBaseOperator.

virtual int HOpCameraZoomTouch::OnTouchesDown ( HEventInfo hevent) [virtual]

OnTouchesDown records touch positions and calculates the current camera target based on the first touch points.

Parameters:
heventAn HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.

virtual int HOpCameraZoomTouch::OnTouchesMove ( HEventInfo hevent) [virtual]

OnTouchesDownAndMove zooms the camera in and out based on a pinching motion of the user.

Parameters:
heventAn HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.

virtual int HOpCameraZoomTouch::OnTouchesUp ( HEventInfo hevent) [virtual]

OnLButtonUp updates the scene with current camera and lighting information and cleans up.

Parameters:
heventAn HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.

void HOpCameraZoomTouch::SetLightFollowsCamera ( bool  follow) [inline]

SetLightFollowsCamera sets the lights to follow the camera or to stay in one place during orbit. This has the effect of either lighting the scene during orbit or allowing the camera to move through shadow. The default is off.

Parameters:
followPass true to have the light follow the camera.

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