public static void DrawPoint(this WriteableBitmap wb, int x, int y, Color color, int size, bool isBlocked = false)
{
byte blue = color.B;
byte green = color.G;
byte red = color.R;
byte alpha = color.A;
byte[] colorData = { blue, green, red, alpha };
for (int i = x - size; i <= x + size; i++)
{
if (i < 0 || i >= wb.PixelWidth)
{
continue;
}
for (int j = y - size; j < y + size; j++)
{
if (j < 0 || j >= wb.PixelHeight)
{
continue;
}
Int32Rect rect = new Int32Rect(i, j, 1, 1);
wb.WritePixels(rect, colorData, 4, 0);
}
}
if (isBlocked)
{
for (int i = x - size * 2; i <= x + size * 2; i++)
{
wb.DrawPixel(i, y, color);
}
for (int i = y - size * 2; i <= y + size * 2; i++)
{
wb.DrawPixel(x, i, color);
}
}
}
public static void DrawBresenhamLine(this WriteableBitmap wb, int x1, int y1, int x2, int y2, Color color)
{
//Source: https://pl.wikipedia.org/wiki/Algorytm_Bresenhama
// zmienne pomocnicze
int d, dx, dy, ai, bi, xi, yi;
int x = x1, y = y1;
// ustalenie kierunku rysowania
if (x1 < x2)
{
xi = 1;
dx = x2 - x1;
}
else
{
xi = -1;
dx = x1 - x2;
}
// ustalenie kierunku rysowania
if (y1 < y2)
{
yi = 1;
dy = y2 - y1;
}
else
{
yi = -1;
dy = y1 - y2;
}
// pierwszy piksel
wb.DrawPixel(x, y, color);
// oś wiodąca OX
if (dx > dy)
{
ai = (dy - dx) * 2;
bi = dy * 2;
d = bi - dx;
// pętla po kolejnych x
while (x != x2)
{
// test współczynnika
if (d >= 0)
{
x += xi;
y += yi;
d += ai;
}
else
{
d += bi;
x += xi;
}
wb.DrawPixel(x, y, color);
}
}
// oś wiodąca OY
else
{
ai = (dx - dy) * 2;
bi = dx * 2;
d = bi - dy;
// pętla po kolejnych y
while (y != y2)
{
// test współczynnika
if (d >= 0)
{
x += xi;
y += yi;
d += ai;
}
else
{
d += bi;
y += yi;
}
wb.DrawPixel(x, y, color);
}
}
}
public static void DrawDigit(this WriteableBitmap wb, int x, int y, int number, Color col)
{
if (number == -1)
{
wb.DrawPixel(x, y + 1, col);
wb.DrawPixel(x + 1, y, col);
wb.DrawPixel(x + 2, y, col);
wb.DrawPixel(x + 3, y, col);
wb.DrawPixel(x + 4, y + 1, col);
wb.DrawPixel(x + 4, y + 2, col);
wb.DrawPixel(x + 3, y + 3, col);
wb.DrawPixel(x + 2, y + 4, col);
wb.DrawPixel(x + 2, y + 6, col);
}
else if (number == 1)
{
wb.DrawLine(x + 1, y, x + 1, y + 7, col);
wb.DrawPixel(x, y + 1, col);
wb.DrawPixel(x, y + 7, col);
wb.DrawPixel(x + 2, y + 7, col);
}
else if (number == 2)
{
wb.DrawPixel(x, y + 1, col);
wb.DrawPixel(x + 1, y, col);
wb.DrawPixel(x + 2, y, col);
wb.DrawPixel(x + 3, y, col);
wb.DrawPixel(x + 4, y + 1, col);
wb.DrawPixel(x + 3, y + 2, col);
wb.DrawPixel(x + 2, y + 3, col);
wb.DrawPixel(x + 1, y + 4, col);
wb.DrawPixel(x, y + 5, col);
wb.DrawPixel(x, y + 6, col);
wb.DrawLine(x, y + 6, x + 4, y + 6, col);
}
else if (number == 3)
{
wb.DrawLine(x, y, x + 3, y, col);
wb.DrawLine(x, y + 3, x + 3, y + 3, col);
wb.DrawLine(x, y + 6, x + 3, y + 6, col);
wb.DrawPixel(x + 4, y + 1, col);
wb.DrawPixel(x + 4, y + 2, col);
wb.DrawPixel(x + 4, y + 4, col);
wb.DrawPixel(x + 4, y + 5, col);
}
else if (number == 4)
{
wb.DrawLine(x, y, x, y + 2, col);
wb.DrawLine(x + 4, y, x + 4, y + 2, col);
wb.DrawLine(x + 1, y + 3, x + 3, y + 3, col);
wb.DrawLine(x + 4, y + 4, x + 4, y + 6, col);
}
else if (number == 5)
{
wb.DrawLine(x + 1, y, x + 4, y, col);
wb.DrawLine(x, y + 1, x, y + 3, col);
wb.DrawLine(x + 1, y + 3, x + 3, y + 3, col);
wb.DrawPixel(x + 4, y + 4, col);
wb.DrawPixel(x + 4, y + 5, col);
wb.DrawLine(x, y + 6, x + 3, y + 6, col);
}
}
