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107 lines
3.2 KiB
107 lines
3.2 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkTextActor3D.h,v $
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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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// .NAME vtkTextActor3D - An actor that displays text.
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// .SECTION Description
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// The input text is rendered into a buffer, which in turn is used as a
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// texture applied onto a quad (a vtkImageActor is used under the hood).
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// .SECTION Warning
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// This class is experimental at the moment.
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// - The orientation is not optimized, the quad should be oriented, not
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// the text itself when it is rendered in the buffer (we end up with
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// excessively big textures for 45 degrees angles).
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// This will be fixed first.
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// - No checking is done at the moment regarding hardware texture size limits.
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// - Alignment is not supported (soon).
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// - Multiline is not supported.
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// - Need to fix angle out of 0<->360
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//
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// .SECTION See Also
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// vtkProp3D
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#ifndef __vtkTextActor3D_h
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#define __vtkTextActor3D_h
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#include "vtkProp3D.h"
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class vtkImageActor;
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class vtkImageData;
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class vtkTextProperty;
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class VTK_RENDERING_EXPORT vtkTextActor3D : public vtkProp3D
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{
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public:
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static vtkTextActor3D *New();
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vtkTypeRevisionMacro(vtkTextActor3D,vtkProp3D);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Set the text string to be displayed.
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vtkSetStringMacro(Input);
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vtkGetStringMacro(Input);
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// Description:
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// Set/Get the text property.
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virtual void SetTextProperty(vtkTextProperty *p);
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vtkGetObjectMacro(TextProperty,vtkTextProperty);
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// Description:
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// Shallow copy of this text actor. Overloads the virtual
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// vtkProp method.
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void ShallowCopy(vtkProp *prop);
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// Description:
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// Get the bounds for this Prop3D as (Xmin,Xmax,Ymin,Ymax,Zmin,Zmax).
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virtual double *GetBounds();
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//BTX
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// Description:
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// WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE
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// DO NOT USE THIS METHOD OUTSIDE OF THE RENDERING PROCESS.
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// Release any graphics resources that are being consumed by this actor.
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// The parameter window could be used to determine which graphic
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// resources to release.
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virtual void ReleaseGraphicsResources(vtkWindow *);
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// Description:
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// WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE
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// DO NOT USE THIS METHOD OUTSIDE OF THE RENDERING PROCESS.
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// Draw the text actor to the screen.
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int RenderOpaqueGeometry(vtkViewport* viewport);
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int RenderTranslucentGeometry(vtkViewport* viewport);
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int RenderOverlay(vtkViewport* viewport);
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//ETX
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protected:
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vtkTextActor3D();
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~vtkTextActor3D();
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char *Input;
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vtkImageActor *ImageActor;
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vtkImageData *ImageData;
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vtkTextProperty *TextProperty;
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vtkTimeStamp BuildTime;
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virtual int UpdateImageActor();
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private:
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vtkTextActor3D(const vtkTextActor3D&); // Not implemented.
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void operator=(const vtkTextActor3D&); // Not implemented.
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};
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#endif
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