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/*=========================================================================
Program: Visualization Toolkit
Module: vtkButtonSource.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkButtonSource - abstract class for creating various button types
// .SECTION Description
// vtkButtonSource is an abstract class that defines an API for creating
// "button-like" objects in VTK. A button is a geometry with a rectangular
// region that can be textured. The button is divided into two regions: the
// texture region and the shoulder region. The points in both regions are
// assigned texture coordinates. The texture region has texture coordinates
// consistent with the image to be placed on it. All points in the shoulder
// regions are assigned a texture coordinate specified by the user. In this
// way the shoulder region can be colored by the texture.
//
// Creating a vtkButtonSource requires specifying its center point.
// (Subclasses have other attributes that must be set to control
// the shape of the button.) You must also specify how to control
// the shape of the texture region; i.e., whether to size the
// texture region proportional to the texture dimensions or whether
// to size the texture region proportional to the button. Also, buttons
// can be created single sided are mirrored to create two-sided buttons.
// .SECTION See Also
// vtkEllipticalButtonSource vtkRectangularButtonSource
// .SECTION Caveats
// The button is defined in the x-y plane. Use vtkTransformPolyDataFilter
// or vtkGlyph3D to orient the button in a different direction.
#ifndef vtkButtonSource_h
#define vtkButtonSource_h
#include "vtkFiltersSourcesModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#define VTK_TEXTURE_STYLE_FIT_IMAGE 0
#define VTK_TEXTURE_STYLE_PROPORTIONAL 1
class VTKFILTERSSOURCES_EXPORT vtkButtonSource : public vtkPolyDataAlgorithm
{
public:
void PrintSelf(ostream& os, vtkIndent indent);
vtkTypeMacro(vtkButtonSource,vtkPolyDataAlgorithm);
// Description:
// Specify a point defining the origin (center) of the button.
vtkSetVector3Macro(Center,double);
vtkGetVectorMacro(Center,double,3);
// Description:
// Set/Get the style of the texture region: whether to size it
// according to the x-y dimensions of the texture, or whether to make
// the texture region proportional to the width/height of the button.
vtkSetClampMacro(TextureStyle,int,VTK_TEXTURE_STYLE_FIT_IMAGE,
VTK_TEXTURE_STYLE_PROPORTIONAL);
vtkGetMacro(TextureStyle,int);
void SetTextureStyleToFitImage()
{this->SetTextureStyle(VTK_TEXTURE_STYLE_FIT_IMAGE);}
void SetTextureStyleToProportional()
{this->SetTextureStyle(VTK_TEXTURE_STYLE_PROPORTIONAL);}
// Description:
// Set/get the texture dimension. This needs to be set if the texture
// style is set to fit the image.
vtkSetVector2Macro(TextureDimensions,int);
vtkGetVector2Macro(TextureDimensions,int);
// Description:
// Set/Get the default texture coordinate to set the shoulder region to.
vtkSetVector2Macro(ShoulderTextureCoordinate,double);
vtkGetVector2Macro(ShoulderTextureCoordinate,double);
// Description:
// Indicate whether the button is single or double sided. A double sided
// button can be viewed from two sides...it looks sort of like a "pill."
// A single-sided button is meant to viewed from a single side; it looks
// like a "clam-shell."
vtkSetMacro(TwoSided,int);
vtkGetMacro(TwoSided,int);
vtkBooleanMacro(TwoSided,int);
protected:
vtkButtonSource();
~vtkButtonSource() {}
double Center[3];
double ShoulderTextureCoordinate[2];
int TextureStyle;
int TextureDimensions[2];
int TwoSided;
private:
vtkButtonSource(const vtkButtonSource&); // Not implemented.
void operator=(const vtkButtonSource&); // Not implemented.
};
#endif
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