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/*
* ElipseBrush.h
*
* Created on: Jan 26, 2012
* Author: Simon
*/
#ifndef ELIPSEBRUSH_H_
#define ELIPSEBRUSH_H_
#include <cmath>
#include "Brush.h"
class EllipseBrush: public Brush
{
public:
EllipseBrush(ui::Point size_):
Brush(size_)
{
SetRadius(size_);
};
virtual void GenerateBitmap()
{
if(bitmap)
delete[] bitmap;
bitmap = new unsigned char[size.X*size.Y];
int rx = radius.X;
int ry = radius.Y;
for(int x = 0; x <= radius.X*2; x++)
{
for(int y = 0; y <= radius.Y*2; y++)
{
if((pow(x-radius.X,2.0f)*pow(ry,2.0f)+pow(y-radius.Y,2.0f)*pow(rx,2.0f)<=pow(rx,2.0f)*pow(ry,2.0f)))
{
bitmap[y*(size.X)+x] = 255;
}
else
{
bitmap[y*(size.X)+x] = 0;
}
}
}
}
};
#endif /* ELIPSEBRUSH_H_ */
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