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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkBMPReader.h,v $
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 vtkBMPReader - read Windows BMP files
// .SECTION Description
// vtkBMPReader is a source object that reads Windows BMP files.
// This includes indexed and 24bit bitmaps
// Usually, all BMPs are converted to 24bit RGB, but BMPs may be output
// as 8bit images with a LookupTable if the Allow8BitBMP flag is set.
//
// BMPReader creates structured point datasets. The dimension of the
// dataset depends upon the number of files read. Reading a single file
// results in a 2D image, while reading more than one file results in a
// 3D volume.
//
// To read a volume, files must be of the form "FileName.<number>"
// (e.g., foo.bmp.0, foo.bmp.1, ...). You must also specify the image
// range. This range specifies the beginning and ending files to read (range
// can be any pair of non-negative numbers).
//
// The default behavior is to read a single file. In this case, the form
// of the file is simply "FileName" (e.g., foo.bmp).
// .SECTION See Also
// vtkBMPWriter
#ifndef __vtkBMPReader_h
#define __vtkBMPReader_h
#include "vtkImageReader.h"
class vtkLookupTable;
class VTK_IO_EXPORT vtkBMPReader : public vtkImageReader
{
public:
static vtkBMPReader *New();
vtkTypeRevisionMacro(vtkBMPReader,vtkImageReader);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Returns the depth of the BMP, either 8 or 24.
vtkGetMacro(Depth,int);
// Description: is the given file name a BMP file?
virtual int CanReadFile(const char* fname);
// Description:
// Get the file extensions for this format.
// Returns a string with a space separated list of extensions in
// the format .extension
virtual const char* GetFileExtensions()
{
return ".bmp";
}
// Description:
// Return a descriptive name for the file format that might be useful in a GUI.
virtual const char* GetDescriptiveName()
{
return "Windows BMP";
}
// Description:
// If this flag is set and the BMP reader encounters an 8bit file,
// the data will be kept as unsigned chars and a lookuptable will be
// exported
vtkSetMacro(Allow8BitBMP,int);
vtkGetMacro(Allow8BitBMP,int);
vtkBooleanMacro(Allow8BitBMP,int);
vtkGetObjectMacro(LookupTable, vtkLookupTable);
//BTX
// Description:
// Returns the color lut.
vtkGetMacro(Colors,unsigned char *);
//ETX
protected:
vtkBMPReader();
~vtkBMPReader();
unsigned char *Colors;
short Depth;
int Allow8BitBMP;
vtkLookupTable *LookupTable;
virtual void ComputeDataIncrements();
virtual void ExecuteInformation();
virtual void ExecuteData(vtkDataObject *out);
private:
vtkBMPReader(const vtkBMPReader&); // Not implemented.
void operator=(const vtkBMPReader&); // Not implemented.
};
#endif
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