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/*=========================================================================
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/VolViewCopyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkKWMarker2D - a 2D cursor annotation
// .SECTION Description
// The vtkKWMarker2D class defines a 2D cursor that can be positioned
// anywhere in the view.
#ifndef __vtkKWMarker2D_h
#define __vtkKWMarker2D_h
#include "vtkKW3DWidget.h"
#include "XML/vtkXMLIOBaseMacros.h" // Needed for XML reader/writer macros
class vtkActor2D;
class vtkPoints;
class VTK_EXPORT vtkKWMarker2D : public vtkKW3DWidget
{
public:
static vtkKWMarker2D* New();
vtkTypeRevisionMacro(vtkKWMarker2D,vtkKW3DWidget);
void PrintSelf(ostream& os, vtkIndent indent);
//BTX
vtkKWGetXMLReaderWriterObjectsMacro();
//ETX
// Description:
// This method is used to initially place the widget.
//BTX
virtual void PlaceWidget(double vtkNotUsed(bounds)[6]) {};
void PlaceWidget()
{this->Superclass::PlaceWidget();}
void PlaceWidget(double xmin, double xmax, double ymin, double ymax,
double zmin, double zmax)
{this->Superclass::PlaceWidget(xmin,xmax,ymin,ymax,zmin,zmax);}
//ETX
// Description:
// Set the position of the marker.
virtual void SetPosition(double *pos);
virtual void SetPosition(double x1, double y1, double x2, double y2);
virtual void GetPosition(double *pos);
// Description:
// Set/Get the size of widget.
virtual void SetSize(double x, double y);
virtual void SetSize(double* s) { this->SetSize(s[0], s[1]); };
virtual void GetSize(double* s);
// Description:
// Set/Get color.
virtual void SetColor(double r, double g, double b);
virtual void SetColor(double rgb[3])
{ this->SetColor(rgb[0], rgb[1], rgb[2]); };
virtual double* GetColor();
// Description:
// Methods for turning the interactor observer on and off.
virtual void SetEnabled(int);
protected:
vtkKWMarker2D();
~vtkKWMarker2D();
//handles the events
static void ProcessEvents(vtkObject* object,
unsigned long event,
void* clientdata,
void* calldata);
// ProcessEvents() dispatches to these methods.
void OnLeftButtonDown();
void OnLeftButtonUp();
void OnMouseMove();
// used to compute relative movements
double StartPosition[2];
//BTX - manage the state of the widget
int State;
enum WidgetState
{
Moving=0,
AdjustingP1,
AdjustingP2,
AdjustingP3,
AdjustingP4,
AdjustingE1,
AdjustingE2,
AdjustingE3,
AdjustingE4,
Inside,
Outside
};
//ETX
// use to determine what state the mouse is over, edge1 p1, etc.
// returns a state from the WidgetState enum above
int ComputeStateBasedOnPosition(int X, int Y, int *pos1, int *pos2);
// set the cursor to the correct shape based on State argument
void SetCursor(int State);
vtkActor2D *Actor;
vtkPoints* Points;
private:
vtkKWMarker2D(const vtkKWMarker2D&); // Not implemented
void operator=(const vtkKWMarker2D&); // Not implemented
};
#endif
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