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163 lines
4.2 KiB
C++
163 lines
4.2 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTextRepresentation.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 vtkTextRepresentation
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* @brief represent text for vtkTextWidget
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*
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* This class represents text for a vtkTextWidget. This class provides
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* support for interactively placing text on the 2D overlay plane. The text
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* is defined by an instance of vtkTextActor.
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*
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* @sa
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* vtkTextRepresentation vtkBorderWidget vtkAbstractWidget vtkWidgetRepresentation
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*/
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#ifndef vtkTextRepresentation_h
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#define vtkTextRepresentation_h
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#include "vtkInteractionWidgetsModule.h" // For export macro
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#include "vtkBorderRepresentation.h"
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class vtkRenderer;
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class vtkTextActor;
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class vtkTextProperty;
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class vtkTextRepresentationObserver;
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class VTKINTERACTIONWIDGETS_EXPORT vtkTextRepresentation : public vtkBorderRepresentation
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{
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public:
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/**
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* Instantiate class.
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*/
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static vtkTextRepresentation *New();
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//@{
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/**
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* Standard VTK methods.
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*/
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vtkTypeMacro(vtkTextRepresentation,vtkBorderRepresentation);
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void PrintSelf(ostream& os, vtkIndent indent);
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//@}
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//@{
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/**
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* Specify the vtkTextActor to manage. If not specified, then one
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* is automatically created.
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*/
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void SetTextActor(vtkTextActor *textActor);
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vtkGetObjectMacro(TextActor,vtkTextActor);
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//@}
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//@{
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/**
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* Get/Set the text string display by this representation.
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*/
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void SetText(const char* text);
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const char* GetText();
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//@}
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/**
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* Satisfy the superclasses API.
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*/
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virtual void BuildRepresentation();
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virtual void GetSize(double size[2])
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{size[0]=2.0; size[1]=2.0;}
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//@{
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/**
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* These methods are necessary to make this representation behave as
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* a vtkProp.
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*/
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virtual void GetActors2D(vtkPropCollection*);
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virtual void ReleaseGraphicsResources(vtkWindow*);
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virtual int RenderOverlay(vtkViewport*);
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virtual int RenderOpaqueGeometry(vtkViewport*);
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virtual int RenderTranslucentPolygonalGeometry(vtkViewport*);
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virtual int HasTranslucentPolygonalGeometry();
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//@}
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enum
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{
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AnyLocation = 0,
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LowerLeftCorner,
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LowerRightCorner,
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LowerCenter,
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UpperLeftCorner,
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UpperRightCorner,
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UpperCenter
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};
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//@{
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/**
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* Set the text position, by enumeration (
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* AnyLocation = 0,
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* LowerLeftCorner,
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* LowerRightCorner,
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* LowerCenter,
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* UpperLeftCorner,
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* UpperRightCorner,
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* UpperCenter)
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* related to the render window
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*/
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virtual void SetWindowLocation(int enumLocation);
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vtkGetMacro(WindowLocation, int);
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//@}
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//@{
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/**
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* Set the text position, by overiding the same function of
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* vtkBorderRepresentation so that the Modified() will be called.
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*/
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virtual void SetPosition(double x, double y);
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virtual void SetPosition(double pos[2])
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{ this->SetPosition(pos[0], pos[1]);};
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//@}
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//@{
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/**
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* Internal. Execute events observed by internal observer
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*/
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void ExecuteTextPropertyModifiedEvent(vtkObject* obj, unsigned long enumEvent, void* p);
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void ExecuteTextActorModifiedEvent(vtkObject* obj, unsigned long enumEvent, void* p);
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//@}
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protected:
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vtkTextRepresentation();
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~vtkTextRepresentation();
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// Initialize text actor
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virtual void InitializeTextActor();
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// Check and adjust boundaries according to the size of the text
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virtual void CheckTextBoundary();
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// the text to manage
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vtkTextActor *TextActor;
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vtkTextProperty *TextProperty;
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// Window location by enumeration
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int WindowLocation;
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virtual void UpdateWindowLocation();
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// observer to observe internal TextActor and TextProperty
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vtkTextRepresentationObserver *Observer;
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private:
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vtkTextRepresentation(const vtkTextRepresentation&) VTK_DELETE_FUNCTION;
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void operator=(const vtkTextRepresentation&) VTK_DELETE_FUNCTION;
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};
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#endif
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