Alphabetical Class Index  Class Hierarchy   File Members   Compound Members   File List  

HOpMarkupRectangle Class Reference

The HOpMarkupRectangle class inserts a 2D rectange into a markup layer. If a markup layer is already active then the operator will use that layer otherwise the operator will create a new, unamed layer. More...

#include <HOpMarkupRectangle.h>

Inheritance diagram for HOpMarkupRectangle:

HOpConstructRectangle HBaseOperator

List of all members.

Public Member Functions

virtual HBaseOperatorClone ()
virtual const char * GetName ()
 HOpMarkupRectangle (HBaseView *view, int DoRepeat=0, int DoCapture=1)
virtual int OnLButtonUp (HEventInfo &hevent)


Detailed Description

The HOpMarkupRectangle class inserts a 2D rectange into a markup layer. If a markup layer is already active then the operator will use that layer otherwise the operator will create a new, unamed layer.

HOpMarkupRectangle implements three mouse event methods defined on the base class and maps the event information to operator routines. This operation consists of the following steps:

  1. Left Button Down: register corner of rectangle
  2. Left Button Down and Drag: create an appropriately sized rectangle in the contruction layer
  3. Left Button Up: depending on existence of an active markup layer it either opens the existing or creates a new markup layer and inserts appropraitely sized rectangle into it
More Detailed Description: see event methods

Constructor & Destructor Documentation

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

constructor


Member Function Documentation

virtual HBaseOperator* HOpMarkupRectangle::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 HOpConstructRectangle object.

Reimplemented from HOpConstructRectangle.

virtual const char* HOpMarkupRectangle::GetName (  )  [virtual]

Returns:
A pointer to a character string denoting the name of the operator 'Markup Rectangle'

Reimplemented from HOpConstructRectangle.

virtual int HOpMarkupRectangle::OnLButtonUp ( HEventInfo hevent  )  [virtual]

OnLButtonUp maps rectangle information from HOpConstructRectangle into the HOOPS routine HC_Compute_Selection_By_Area. This function also deselects any selected items that are not present in the current selection list.

Parameters:
hevent An HEventInfo object containing information about the current event.
Returns:
A value indicating the result of the event handling.

Reimplemented from HOpConstructRectangle.


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