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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 vtkKWScaleBarWidget - widget for manipulating scale bar
// .SECTION Description
#ifndef __vtkKWScaleBarWidget_h
#define __vtkKWScaleBarWidget_h
#include "vtkKW3DWidget.h"
#include "XML/vtkXMLIOBaseMacros.h" // Needed for XML reader/writer macros
class vtkKWApplication;
class vtkPolyData;
class vtkActor2D;
class vtkTextActor;
class VTK_EXPORT vtkKWScaleBarWidget : public vtkKW3DWidget
{
public:
static vtkKWScaleBarWidget *New();
vtkTypeRevisionMacro(vtkKWScaleBarWidget, vtkKW3DWidget);
void PrintSelf(ostream& os, vtkIndent indent);
//BTX
vtkKWGetXMLReaderWriterObjectsMacro();
//ETX
// Description:
// Enable/disable the widget
virtual void SetEnabled(int enabling);
// Description:
// Set/Get units
virtual void SetDistanceUnits(const char *name);
vtkGetStringMacro(DistanceUnits);
// 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]); };
double* GetColor();
// Description:
// Place widget within bounds
//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/Get the position of the widget (normalized display coords)
virtual void SetPosition(double x, double y);
virtual void SetPosition(double pos[2]) { this->SetPosition(pos[0], pos[1]); }
virtual void GetPosition(double pos[2]);
// Description:
// Set/Get the size of the widget
virtual void SetSize(double size);
virtual double GetSize();
// Description:
// Set/get the application; needed so a message dialog can be displayed
// (e.g., to warn that this widget cannot be used with perspective
// projection)
void SetApplication(vtkKWApplication *app);
vtkGetObjectMacro(Application, vtkKWApplication);
// Description:
// Can the widget be moved. On by default. If off, the widget cannot be moved
// around.
//
// (PS: This should really be a flag in a superclass, say vtk3DWidget
// and/or vtkAbstractWidget and/or vtkInteractorObserver. Widgets in VTK
// subclass randomly from all three... )
vtkSetMacro( Repositionable, int );
vtkGetMacro( Repositionable, int );
vtkBooleanMacro( Repositionable, int );
// Description:
// Retrieve internal actors (for serialization)
vtkGetObjectMacro(ScaleBarActor, vtkActor2D);
vtkGetObjectMacro(TextActor, vtkTextActor);
protected:
vtkKWScaleBarWidget();
~vtkKWScaleBarWidget();
int MouseCursorState;
int Moving;
int StartPosition[2];
void UpdateCursorIcon();
void SetMouseCursor(int cursorState);
//BTX
enum WidgetStates
{
Outside = 0,
Inside,
ResizeLeft,
ResizeRight,
ResizeTop,
ResizeBottom
};
//ETX
// Handles the events
static void ProcessEvents(vtkObject* object,
unsigned long event,
void* clientdata,
void* calldata);
void OnButtonPress();
void OnMouseMove();
void OnButtonRelease();
void OnScaleChange();
void MoveBar();
void ResizeBar();
double ComputeXTextPosition(int renXSize, double currentWidth, double newWidth,
double startXPos);
char *DistanceUnits;
double CurrentScale;
vtkPolyData *ScaleBar;
vtkActor2D *ScaleBarActor;
vtkTextActor *TextActor;
double ScaleSize;
int Initialized;
double Width;
vtkKWApplication *Application;
// Description:
// Update the distance text.
virtual void UpdateDistance();
int Repositionable;
private:
vtkKWScaleBarWidget(const vtkKWScaleBarWidget&); //Not implemented
void operator=(const vtkKWScaleBarWidget&); //Not implemented
};
#endif
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