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#ifndef _BITMAP_H
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#define _BITMAP_H
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#include "system.h"
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/** A BitMap representation stores image in an array of unsigned character
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arrays. There is one uchar array per row. Each bit of the uchar
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represents a pixel.
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***/
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class RLEMap;
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class Point;
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class BitMap;
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extern void byteprint(char d);
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extern void bitprint(char d, int x);
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class BitMap{
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public:
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friend MapStatus convertMap(RLEMap *,BitMap*,Point,Point);
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BitMap();
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~BitMap();
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int & imageLength()
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{return fImageLength;};
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int & imageWidth()
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{return fImageWidth;};
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MapStatus & status()
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{return fStatus; };
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uchar * row(int i); // returns a pointer to row i
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// I/O operations. readMap and writeMap are from/to 2 level TIFF files
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MapStatus readMap(char * filename);
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MapStatus writeMap(char * filename); // not done
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// Write out BitMap format for TCL/TK display
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MapStatus writeTclMap(char * filename, Point & ul, Point & lr, int scaledown);
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// Detect skew Angle
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Angle skewAngle();
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//Rotate the map designated angle.
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MapStatus rotateMap(Angle angl);
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// Return a ratio of black pixels to white pixels
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// scaled to 255 0 = all white 255=all black
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short int grayScale(Point & ul, Point & lr);
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// number of black pixels in bounding box
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int BitMap::pixelsInRegion(Point ul, Point lr);
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private:
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int fImageWidth;
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int fImageLength;
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MapStatus fStatus;
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uchar ** fMapData;
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} ;
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#endif
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