124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCheckerboardWidget.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 vtkCheckerboardWidget
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* @brief interactively set the number of divisions in 2D image checkerboard
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*
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* The vtkCheckerboardWidget is used to interactively control an instance of
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* vtkImageCheckerboard (and an associated vtkImageActor used to display the
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* checkerboard). The user can adjust the number of divisions in each of the
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* i-j directions in a 2D image. A frame appears around the vtkImageActor
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* with sliders along each side of the frame. The user can interactively
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* adjust the sliders to the desired number of checkerboard subdivisions.
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*
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* To use this widget, specify an instance of vtkImageCheckerboard and an
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* instance of vtkImageActor. By default, the widget responds to the
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* following events:
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* <pre>
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* If the slider bead is selected:
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* LeftButtonPressEvent - select slider (if on slider)
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* LeftButtonReleaseEvent - release slider
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* MouseMoveEvent - move slider
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* If the end caps or slider tube of a slider are selected:
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* LeftButtonPressEvent - jump (or animate) to cap or point on tube;
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* </pre>
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* It is possible to change these event bindings. Please refer to the
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* documentation for vtkSliderWidget for more information. Advanced users may
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* directly access and manipulate the sliders by obtaining the instances of
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* vtkSliderWidget composing the vtkCheckerboard widget.
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*
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* @sa
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* vtkImageCheckerboard vtkImageActor vtkSliderWidget vtkRectilinearWipeWidget
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*/
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#ifndef vtkCheckerboardWidget_h
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#define vtkCheckerboardWidget_h
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#include "vtkAbstractWidget.h"
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#include "vtkInteractionWidgetsModule.h" // For export macro
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class vtkCheckerboardRepresentation;
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class vtkSliderWidget;
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class VTKINTERACTIONWIDGETS_EXPORT vtkCheckerboardWidget : public vtkAbstractWidget
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{
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public:
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/**
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* Instantiate this class.
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*/
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static vtkCheckerboardWidget* New();
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///@{
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/**
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* Standard methods for a VTK class.
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*/
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vtkTypeMacro(vtkCheckerboardWidget, vtkAbstractWidget);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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///@}
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/**
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* The method for activating and deactivating this widget. This method
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* must be overridden because it is a composite widget and does more than
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* its superclasses' vtkAbstractWidget::SetEnabled() method.
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*/
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void SetEnabled(int) 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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void SetRepresentation(vtkCheckerboardRepresentation* r)
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{
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this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));
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}
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/**
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* Return the representation as a vtkCheckerboardRepresentation.
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*/
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vtkCheckerboardRepresentation* GetCheckerboardRepresentation()
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{
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return reinterpret_cast<vtkCheckerboardRepresentation*>(this->WidgetRep);
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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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vtkCheckerboardWidget();
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~vtkCheckerboardWidget() override;
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// The four slider widgets
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vtkSliderWidget* TopSlider;
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vtkSliderWidget* RightSlider;
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vtkSliderWidget* BottomSlider;
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vtkSliderWidget* LeftSlider;
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// Callback interface
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void StartCheckerboardInteraction();
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void CheckerboardInteraction(int sliderNum);
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void EndCheckerboardInteraction();
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friend class vtkCWCallback;
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private:
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vtkCheckerboardWidget(const vtkCheckerboardWidget&) = delete;
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void operator=(const vtkCheckerboardWidget&) = delete;
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};
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#endif
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