#include <HOpCameraZoom.h>
Public Member Functions | |
virtual HBaseOperator * | Clone () |
bool | GetLightFollowsCamera () |
virtual const char * | GetName () |
HOpCameraZoom (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
virtual int | OnLButtonDown (HEventInfo &hevent) |
virtual int | OnLButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnLButtonUp (HEventInfo &hevent) |
void | SetLightFollowsCamera (bool follow) |
HOpCameraZoom implements three of the mouse button handlers defined on the base class and maps the event information to HOOPS camera routines. This provides the basic functionality for interactively zooming in or out from a model in realtime. The operation consists of the following steps:
HOpCameraZoom::HOpCameraZoom | ( | HBaseView * | view, | |
int | DoRepeat = 0 , |
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int | DoCapture = 1 | |||
) |
Constructs an HOpCameraZoom object.
view | A pointer to an HBaseView object. | |
DoRepeat | An integer denoting whether this is a repeatable operator. This parameter has been deprecated. | |
DoCapture | An 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. |
virtual HBaseOperator* HOpCameraZoom::Clone | ( | ) | [virtual] |
Creates a new operator which is a copy of the current operator. The user is responsible for deleting the newly created operator.
Reimplemented from HBaseOperator.
bool HOpCameraZoom::GetLightFollowsCamera | ( | ) | [inline] |
virtual const char* HOpCameraZoom::GetName | ( | ) | [virtual] |
Reimplemented from HBaseOperator.
virtual int HOpCameraZoom::OnLButtonDown | ( | HEventInfo & | hevent | ) | [virtual] |
OnLButtonDown draws a bounding box around the scene, records the first mouse position, and calculates the current camera target based on the first point.
hevent | An HEventInfo object containing information about the current event. |
Reimplemented from HBaseOperator.
virtual int HOpCameraZoom::OnLButtonDownAndMove | ( | HEventInfo & | hevent | ) | [virtual] |
OnLButtonDownAndMove tests for left button down, records points as the mouse is moved, recalculates the current target for each point, and zooms the camera towards that current target. The method makes calculations to avoid unneccessary zoom when the camera is close to the target. If this operator is set so that the lights follow the camera, lighting targets will also be recalculated and lights reoriented.
hevent | An HEventInfo object containing information about the current event. |
Reimplemented from HBaseOperator.
virtual int HOpCameraZoom::OnLButtonUp | ( | HEventInfo & | hevent | ) | [virtual] |
OnLButtonUp updates the scene with current camera and lighting information and cleans up.
hevent | An HEventInfo object containing information about the current event. |
Reimplemented from HBaseOperator.
void HOpCameraZoom::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.
follow | Pass true to have the light follow the camera. |