HOpSelectArea Class Reference

The HOpSelectArea class computes a selection list for objects inside a rectangular area. More...

#include <HOpSelectArea.h>

Public Member Functions

virtual HBaseOperatorClone ()
 
virtual const char * GetName ()
 
 HOpSelectArea (HBaseView *view, int DoRepeat=0, int DoCapture=1)
 
virtual int OnLButtonDown (HEventInfo &hevent)
 
virtual int OnLButtonUp (HEventInfo &hevent)
 
- Public Member Functions inherited from HOpConstructRectangle
 HOpConstructRectangle (HBaseView *view, int DoRepeat=0, int DoCapture=1, bool UseCenterMarker=true)
 
virtual int OnLButtonDownAndMove (HEventInfo &hevent)
 
virtual int OnRButtonUp (HEventInfo &hevent)
 
- Public Member Functions inherited from HBaseOperator
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 ()
 Returns the initial selection point.
 
HPoint const GetNewPoint ()
 Returns the current selection point.
 
HBaseViewGetView ()
 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 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 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.
 

Additional Inherited Members

- Protected Member Functions inherited from HBaseOperator
bool IsSpecialKey (HC_KEY key)
 
- Protected Attributes inherited from HOpConstructRectangle
bool m_bRectangleExists
 
char m_pSavedColor [MVO_BUFFER_SIZE]
 
char m_pSavedVisibility [MVO_BUFFER_SIZE]
 
HPoint m_ptRectangle [2]
 
- Protected Attributes inherited from HBaseOperator
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.
 
HBaseViewm_pView
 The HOOPS view corresponding to this operator.
 
HCutGeometryVisibility m_TempCutGeometryVisibility
 stores original cut geometry visibility
 
HShadowMode m_TempShadowMode
 stores original shadow mode
 

Detailed Description

The HOpSelectArea class computes a selection list for objects inside a rectangular area.

HOpSelectArea employs all of the drawing functionality of HOpConstructRectangle to define a temporary, overlayed rectangular selection area, then maps the rectangle information to the HOOPS routine HC_Compute_Selection_By_Area. This class provides the basic functionality for window selection. The operation consists of the following steps:

  1. Left Button Down: first point of rectangle
  2. Left Button Down and Drag: rubberband rectangle to desired dimensions
  3. Left Button Up: rectangled completed and flushed from scene, selection list computed, objects highlighted, operation ended

More Detailed Description: see event methods

Constructor & Destructor Documentation

◆ HOpSelectArea()

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

Constructs an HOpSelectArea 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

◆ Clone()

virtual HBaseOperator* HOpSelectArea::Clone ( )
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.

Returns
A pointer to a copy of this operator

Reimplemented from HOpConstructRectangle.

Reimplemented in HOpSelectAreaOOC< SelectionSet >.

◆ GetName()

virtual const char* HOpSelectArea::GetName ( )
virtual
Returns
A pointer to a character string denoting the name of the operator which is 'HOpSelectArea'.

Reimplemented from HOpConstructRectangle.

Reimplemented in HOpSelectAreaOOC< SelectionSet >.

◆ OnLButtonDown()

virtual int HOpSelectArea::OnLButtonDown ( HEventInfo hevent)
virtual

This method calls through to HOpConstructRectangle's OnLButtonDown method to record the first point and initiates the rectangle drawing mechanism. Then it sets attribute values for color and visibility that are specific to the selection by area.

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

Reimplemented from HOpConstructRectangle.

Reimplemented in HOpSelectAreaOOC< SelectionSet >.

Referenced by HOpSelectAreaOOC< SelectionSet >::OnLButtonDown().

◆ OnLButtonUp()

virtual int HOpSelectArea::OnLButtonUp ( HEventInfo hevent)
virtual

This method maps rectangle information from HOpConstructRectangle into the HOOPS routine HC_Compute_Selection_By_Area to update the selection set in the associated view. It also deselects any selection items that are not present in the current selection list.

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

Reimplemented from HOpConstructRectangle.

Reimplemented in HOpSelectAreaOOC< SelectionSet >.

Referenced by HOpSelectAreaOOC< SelectionSet >::OnLButtonUp().


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