#include "Bitmap.h"

#include "Errors.h"

#include "Histogram.h"

Bitmap::Bitmap(int w, int h)

{

	int i;

	height = h;

	width = w;

	// Assignem memòria

	pixels = new (char*)[height];

	for (i=0; i<height; i++)

		pixels[i] = new char[width];

	// Memòria assignada

	//PointsPerLine = new vector<int>

}

Bitmap::~Bitmap()

{

	int i;

	for (i=0; i<height; i++)

		delete[] pixels[i];

	delete[] pixels;

}

void Bitmap::setToZero()

{

	int i,j;

	for (i=0; i<height; i++)

		for (j=0; j<width; j++)

			pixels[i][j] = 0;

}

int Bitmap::points_per_row(int line)

{

	int weight=0;

	for(int j=0; j<width; j++)

		if (pixels[line][j])

			++weight;

	return weight;

}

void Bitmap::calcHistogram(Histogram* &myhist)

{

	int i,j;

	myhist = new Histogram(height);

	for(i=0; i<height; i++)

		myhist->weights[i] = points_per_row(i);

	myhist->calcStatistics();

}