The HOpConstructCircle class draws a circle. More...
#include <HOpConstructCircle.h>
Public Member Functions | |
virtual HBaseOperator * | Clone () |
virtual const char * | GetName () |
HOpConstructCircle (HBaseView *view, int DoRepeat=0, int DoCapture=1, bool UseCenterMarker=true) | |
virtual int | OnLButtonDown (HEventInfo &hevent) |
virtual int | OnLButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnLButtonUp (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 () |
Returns the initial selection point. | |
HPoint const | GetNewPoint () |
Returns the current selection point. | |
HBaseView * | GetView () |
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 | 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 | |
void | InsertDoublePrecisionCircle () |
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bool | IsSpecialKey (HC_KEY key) |
Protected Attributes | |
HPoint | m_ptCircle [2] |
The first and last points in the circle which are stored in window space. | |
float | m_radius |
The radius of the circle. | |
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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 | |
Detailed Description
The HOpConstructCircle class draws a circle.
HOpConstructCircle implements three of the mouse button event handlers and uses the event information to draw a circle. This class provides the basic functionality for drawing a temporary, overlayed 2-D box outline in the view plane based on first and last pointer positions. The operation consists of the following steps:
- Left Button Down: Identifies the center point of the circle.
- Left Button Down and Drag: Rubberband circle to desired dimensions.
- Left Button Up: Circle finalized and the polyline primitive used to represent the circle is flushed from the scene.
More Detailed Description: see event methods.
Constructor & Destructor Documentation
◆ HOpConstructCircle()
HOpConstructCircle::HOpConstructCircle | ( | HBaseView * | view, |
int | DoRepeat = 0 , |
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int | DoCapture = 1 , |
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bool | UseCenterMarker = true |
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Constructs an HOpConstructCircle object.
- Parameters
-
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. UseCenterMarker Pass true if you want HOOPS to draw a mark at the center.
Member Function Documentation
◆ Clone()
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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 HOpConstructCircle object.
Reimplemented from HBaseOperator.
Reimplemented in HOpMarkupCircle, and HOpCreateCircle.
◆ GetName()
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virtual |
- Returns
- A pointer to a character string denoting the name of the operator, which is 'HOpConstructCircle'.
Reimplemented from HBaseOperator.
Reimplemented in HOpMarkupCircle, and HOpCreateCircle.
◆ OnLButtonDown()
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virtual |
OnLButtonDown records the first mouse position and initiates the circle-drawing mechanism.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HBaseOperator.
◆ OnLButtonDownAndMove()
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virtual |
OnLButtonDownAndMove draws rubberbanded lines along the circumference of the circle centered on the first pointer position. Note that the basic dynamic drawing work is done by repeated calls to the HUtility::CreateAxisCircle while OnLButtonDownandMove keeps track the changing radius value.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HBaseOperator.
◆ OnLButtonUp()
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virtual |
OnLButtonUp finalizes the size of the circle and cleans up the geometry that was drawn under the construction key.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HBaseOperator.
Reimplemented in HOpMarkupCircle, and HOpCreateCircle.
The documentation for this class was generated from the following file: