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155 lines
4.5 KiB
C++
155 lines
4.5 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkResliceCursorWidget.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 vtkResliceCursorWidget
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* @brief represent a reslice cursor
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*
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* This class represents a reslice cursor that can be used to
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* perform interactive thick slab MPR's through data. It
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* consists of two cross sectional hairs, with an optional thickness. The
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* hairs may have a hole in the center. These may be translated or rotated
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* independent of each other in the view. The result is used to reslice
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* the data along these cross sections. This allows the user to perform
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* multi-planar thin or thick reformat of the data on an image view, rather
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* than a 3D view. The class internally uses vtkImageSlabReslice
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* or vtkImageReslice depending on the modes in vtkResliceCursor to
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* do its reslicing. The slab thickness is set interactively from
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* the widget. The slab resolution (ie the number of blend points) is
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* set as the minimum spacing along any dimension from the dataset.
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* @sa
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* vtkImageSlabReslice vtkResliceCursorLineRepresentation
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* vtkResliceCursor
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*/
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#ifndef vtkResliceCursorWidget_h
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#define vtkResliceCursorWidget_h
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#include "vtkAbstractWidget.h"
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#include "vtkInteractionWidgetsModule.h" // For export macro
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class vtkResliceCursorRepresentation;
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class VTKINTERACTIONWIDGETS_EXPORT vtkResliceCursorWidget : 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 vtkResliceCursorWidget* New();
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//@{
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/**
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* Standard VTK class macros.
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*/
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vtkTypeMacro(vtkResliceCursorWidget, vtkAbstractWidget);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@}
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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(vtkResliceCursorRepresentation* 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 vtkResliceCursorRepresentation.
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*/
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vtkResliceCursorRepresentation* GetResliceCursorRepresentation()
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{
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return reinterpret_cast<vtkResliceCursorRepresentation*>(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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/**
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* Methods for activiating this widget. This implementation extends the
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* superclasses' in order to resize the widget handles due to a render
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* start event.
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*/
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void SetEnabled(int) override;
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//@{
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/**
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* Also perform window level ?
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*/
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vtkSetMacro(ManageWindowLevel, vtkTypeBool);
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vtkGetMacro(ManageWindowLevel, vtkTypeBool);
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vtkBooleanMacro(ManageWindowLevel, vtkTypeBool);
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//@}
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/**
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* Events
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*/
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enum
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{
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WindowLevelEvent = 1055,
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ResliceAxesChangedEvent,
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ResliceThicknessChangedEvent,
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ResetCursorEvent
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};
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/**
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* Reset the cursor back to its initial state
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*/
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virtual void ResetResliceCursor();
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protected:
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vtkResliceCursorWidget();
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~vtkResliceCursorWidget() override;
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// These are the callbacks for this widget
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static void SelectAction(vtkAbstractWidget*);
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static void RotateAction(vtkAbstractWidget*);
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static void EndSelectAction(vtkAbstractWidget*);
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static void ResizeThicknessAction(vtkAbstractWidget*);
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static void EndResizeThicknessAction(vtkAbstractWidget*);
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static void MoveAction(vtkAbstractWidget*);
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static void ResetResliceCursorAction(vtkAbstractWidget*);
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// helper methods for cursor management
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void SetCursor(int state) override;
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// Start Window Level
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void StartWindowLevel();
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// Invoke the appropriate event based on state
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void InvokeAnEvent();
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// Manage the state of the widget
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int WidgetState;
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enum _WidgetState
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{
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Start = 0,
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Active
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};
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// Keep track whether key modifier key is pressed
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int ModifierActive;
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vtkTypeBool ManageWindowLevel;
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private:
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vtkResliceCursorWidget(const vtkResliceCursorWidget&) = delete;
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void operator=(const vtkResliceCursorWidget&) = delete;
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};
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#endif
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