The HOpSelectAperture class performs hit testing on a circular aperture and computes a selection list for positive hits. More...
#include <HOpSelectAperture.h>
Public Member Functions | |
virtual HBaseOperator * | Clone () |
virtual const char * | GetName () |
HOpSelectAperture (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
virtual int | OnLButtonDown (HEventInfo &hevent) |
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int | Capture () |
Returns whether we are currently in mouse capture mode. See this class' constructor for a more detailed description of what this means. This method has been deprecated. | |
HPoint const | GetFirstPoint (void) |
Returns the initial selection point. | |
HPoint const | GetNewPoint (void) |
Returns the current selection point. | |
HBaseView * | GetView (void) |
Returns a pointer to the view that this operator is associated with. | |
HBaseOperator (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
virtual int | OnKeyDown (HEventInfo &hevent) |
virtual int | OnKeyUp (HEventInfo &hevent) |
virtual int | OnLButtonDblClk (HEventInfo &hevent) |
virtual int | OnLButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnLButtonUp (HEventInfo &hevent) |
virtual int | OnLRButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnMButtonDblClk (HEventInfo &hevent) |
virtual int | OnMButtonDown (HEventInfo &hevent) |
virtual int | OnMButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnMButtonUp (HEventInfo &hevent) |
virtual int | OnMouseMove (HEventInfo &hevent) |
virtual int | OnMouseWheel (HEventInfo &hevent) |
virtual int | OnNoButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnRButtonDblClk (HEventInfo &hevent) |
virtual int | OnRButtonDown (HEventInfo &hevent) |
virtual int | OnRButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnRButtonUp (HEventInfo &hevent) |
virtual int | OnTimer (HEventInfo &hevent) |
virtual int | OnTouchesDown (HEventInfo &hevent) |
virtual int | OnTouchesMove (HEventInfo &hevent) |
virtual int | OnTouchesUp (HEventInfo &hevent) |
virtual bool | OperatorStarted () |
Operator has been started if true, and has not been started if false. | |
int | Repeat () |
Returns whether the operation is repeatable. This method has been deprecated. | |
void | SetFirstPoint (HPoint const &new_point) |
Sets the initial selection point. | |
void | SetMapTouchesToMouseEvents (bool val) |
Touch Events are mapped to mouse events if true, and are not if false. | |
void | SetNewPoint (HPoint const &new_point) |
Sets the current selection point. | |
void | SetOperatorStarted (bool val) |
Operator has been started if true, and has not been started if false. | |
void | SetView (HBaseView *new_view) |
Sets the view that this operator is associated with. | |
Protected Member Functions | |
virtual void | HandleSelection (HEventInfo &hevent) |
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bool | IsSpecialKey (HC_KEY key) |
Additional Inherited Members | |
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bool | m_bMapTouchesToMouseEvents |
Indicates if touch events are mapped to mouse events. | |
bool | m_bOpStarted |
Indicates whether the operator has already 'started'. More... | |
int | m_doCapture |
Integer indicating whether to capture mouse on button down and release on button up. This parameter has been deprecated. | |
int | m_doRepeat |
Integer indicating if the operator is repeatable . This parameter has been deprecated. | |
HPoint | m_ptFirst |
Initial selection point. | |
HPoint | m_ptNew |
Current selection point. | |
HBaseView * | m_pView |
The HOOPS view corresponding to this operator. | |
HCutGeometryVisibility | m_TempCutGeometryVisibility |
stores original cut geometry visibility | |
HShadowMode | m_TempShadowMode |
stores original shadow mode | |
The HOpSelectAperture class performs hit testing on a circular aperture and computes a selection list for positive hits.
HOpSelectAperture implements one of the mouse event handlers defined on the base class and maps the mouse event to the HOOPS routine HC_Compute_Selection. This provides the basic functionality for interactively selecting HOOPS objects with a single click. The aperture under which hit testing will be carried out is definable by the user via the HOOPS/3dGS Driver Option selection proximity. This is set by calling HC_Set_Driver_Options("selection proximity = <value>") HOOPS/MVO sets the default selection proximity to 0.1 . The operation consists of the following steps:
This class contains code that allows the following to be true: when HOpSelectAperture is the current operator, repeated calls to the internal function OnNoButtonDownAndMove are made. Therefore, when the mouse is moved without any buttons depressed, a selection list is still being calculated for every point. If this logic is desired, the user must remove the conditional "#if 0" statement.
HOpSelectAperture::HOpSelectAperture | ( | HBaseView * | view, |
int | DoRepeat = 0 , |
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int | DoCapture = 1 |
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Constructs an HOpSelectAperture 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. |
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virtual |
Creates a new operator which is associated with the same view as the current operator. The user is responsible for deleting the newly created operator.
Reimplemented from HBaseOperator.
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virtual |
Reimplemented from HBaseOperator.
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protectedvirtual |
returns a pointer to a copy of the operator
For the given hevent, this method determines if an object is selected. If it is selected, it adds to the HSelectionSet associated with the given HBaseView.
hevent | An HEventInfo object containing information about the current event. |
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virtual |
OnLButtonDown records the first pointer position, finds the item(s) occurring at that point, and highlights the item(s). It also deselects items that are currently highlighted, unless the control key is pressed.
hevent | An HEventInfo object containing information about the current event. |
Reimplemented from HBaseOperator.