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109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkScalarBarWidget.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkScalarBarWidget
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* @brief 2D widget for manipulating a scalar bar
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*
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* This class provides support for interactively manipulating the position,
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* size, and orientation of a scalar bar. It listens to Left mouse events and
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* mouse movement. It also listens to Right mouse events and notifies any
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* observers of Right mouse events on this object when they occur.
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* It will change the cursor shape based on its location. If
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* the cursor is over an edge of the scalar bar it will change the cursor
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* shape to a resize edge shape. If the position of a scalar bar is moved to
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* be close to the center of one of the four edges of the viewport, then the
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* scalar bar will change its orientation to align with that edge. This
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* orientation is sticky in that it will stay that orientation until the
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* position is moved close to another edge.
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*
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* @sa
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* vtkInteractorObserver
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*/
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#ifndef vtkScalarBarWidget_h
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#define vtkScalarBarWidget_h
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#include "vtkBorderWidget.h"
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#include "vtkInteractionWidgetsModule.h" // For export macro
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class vtkScalarBarActor;
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class vtkScalarBarRepresentation;
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class VTKINTERACTIONWIDGETS_EXPORT vtkScalarBarWidget : public vtkBorderWidget
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{
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public:
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static vtkScalarBarWidget* New();
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vtkTypeMacro(vtkScalarBarWidget, vtkBorderWidget);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Specify an instance of vtkWidgetRepresentation used to represent this
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* widget in the scene. Note that the representation is a subclass of vtkProp
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* so it can be added to the renderer independent of the widget.
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*/
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virtual void SetRepresentation(vtkScalarBarRepresentation* rep);
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/**
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* Return the representation as a vtkScalarBarRepresentation.
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*/
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vtkScalarBarRepresentation* GetScalarBarRepresentation()
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{
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return reinterpret_cast<vtkScalarBarRepresentation*>(this->GetRepresentation());
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}
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//@{
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/**
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* Get the ScalarBar used by this Widget. One is created automatically.
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*/
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virtual void SetScalarBarActor(vtkScalarBarActor* actor);
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virtual vtkScalarBarActor* GetScalarBarActor();
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//@}
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//@{
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/**
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* Can the widget be moved. On by default. If off, the widget cannot be moved
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* around.
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* TODO: This functionality should probably be moved to the superclass.
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*/
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vtkSetMacro(Repositionable, vtkTypeBool);
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vtkGetMacro(Repositionable, vtkTypeBool);
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vtkBooleanMacro(Repositionable, vtkTypeBool);
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//@}
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/**
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* Create the default widget representation if one is not set.
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*/
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void CreateDefaultRepresentation() override;
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protected:
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vtkScalarBarWidget();
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~vtkScalarBarWidget() override;
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vtkTypeBool Repositionable;
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// Handle the case of Repositionable == 0
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static void MoveAction(vtkAbstractWidget*);
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// set the cursor to the correct shape based on State argument
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void SetCursor(int State) override;
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private:
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vtkScalarBarWidget(const vtkScalarBarWidget&) = delete;
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void operator=(const vtkScalarBarWidget&) = delete;
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};
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#endif
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