private void FloodFill(Point p, Color c)
{
Stack <Point> stack = new Stack <Point>();
stack.Push(p);
while (stack.Count > 0)
{
p = stack.Pop();
image.SetPixel(p.X, p.Y, c);
if (p.X - 1 > 0 && image.GetPixel(p.X - 1, p.Y).Equals(white))
{
stack.Push(new Point(p.X - 1, p.Y));
}
if (p.Y - 1 > 0 && image.GetPixel(p.X, p.Y - 1).Equals(white))
{
stack.Push(new Point(p.X, p.Y - 1));
}
if (p.X + 1 < image.Width && image.GetPixel(p.X + 1, p.Y).Equals(white))
{
stack.Push(new Point(p.X + 1, p.Y));
}
if (p.Y + 1 < image.Height && image.GetPixel(p.X, p.Y + 1).Equals(white))
{
stack.Push(new Point(p.X, p.Y + 1));
}
}
}
private void pictureBoxSearch_MouseClick(object sender, MouseEventArgs e)
{
if (!pintar)
{
if (pa == null)
{
pa = new Poligono();
}
if (x == -1)
{
x = e.X;
y = e.Y;
}
Aplicacoes.BresenhamReta(x, y, e.X, e.Y, bm);
pictureBoxSearch.Image = bm;
pa.MOXY[pa.linha, 0] = pa.MAXY[pa.linha, 0] = e.X;
pa.MOXY[pa.linha, 1] = pa.MAXY[pa.linha, 1] = e.Y;
pa.linha++;
x = e.X;
y = e.Y;
}
else
{
Aplicacoes.FloodFill(e.X, e.Y, r, g, b, bm);
pictureBoxSearch.Image = bm;
pintar = false;
}
}
private static void criaET(Poligono p)
{
ET caixa;
et = new ET[buscaMaxY(p)];
for (int i = 0; i < p.linha - 2; i++)
{
caixa = new ET();
caixa.xmin = p.MAXY[i, 0];
caixa.ymax = p.MAXY[i + 1, 1];
try
{
caixa.incx = (p.MAXY[i + 1, 0] - p.MAXY[i, 0]) / (p.MAXY[i + 1, 1] - p.MAXY[i, 1]);
}
catch (Exception ex)
{
caixa.incx = 0;
}
caixa.prox = et[p.MAXY[i, 1]];
et[p.MAXY[i, 1]] = caixa;
}
caixa = new ET();
caixa.xmin = p.MAXY[p.linha - 1, 0];
caixa.ymax = p.MAXY[0, 1];
caixa.incx = (p.MAXY[0, 0] - p.MAXY[p.linha - 1, 0]) / (p.MAXY[0, 1] - p.MAXY[p.linha - 1, 1]);
caixa.prox = et[p.MAXY[p.linha - 1, 1] - 1];
et[p.MAXY[p.linha - 1, 1]] = caixa;
}
public Form1()
{
InitializeComponent();
x = -1;
pa = ps = null;
pintar = false;
r = g = b = 255;
}
private void pictureBoxSearch_MouseDoubleClick(object sender, MouseEventArgs e)
{
LBPoligono.Items.Add(pa);
LBPoligono.ValueMember = pa.linha.ToString();
Aplicacoes.BresenhamReta(e.X, e.Y, pa.MAXY[0, 0], pa.MAXY[0, 1], bm);
pictureBoxSearch.Image = bm;
pa = null;
x = -1;
}
public Poligono(Poligono p)
{
foreach (Point po in p.PontosAtuais)
{
pontosAtuais.Add(new Point(po.X, po.Y));
pontosOriginais.Add(new Point(po.X, po.Y));
}
Identidade();
}
private void BtQuad_Click(object sender, EventArgs e)
{
lbDescricao.Visible = false;
p = new Poligono();
flag = ((Button)sender).Name.Replace("bt", "");
if (flag.Equals("Bal"))
{
cdCor.ShowDialog();
}
}
private static int buscaMaxY(Poligono p)
{
int max = 0;
for (int i = 0; i < p.linha; i++)
{
if (p.MAXY[i, 1] > max)
{
max = p.MAXY[i, 1];
}
}
return(max);
}
private void PictureBox1_MouseMove(object sender, MouseEventArgs e)
{
List <Point> l = new List <Point>();
if (down.X != -1)
{
if (flag.Equals("Ret"))
{
p.Draw(white, image);
l.Add(new Point(Math.Min(e.X, down.X), Math.Min(e.Y, down.Y)));
l.Add(new Point(Math.Abs(down.X - e.X) + Math.Min(e.X, down.X), Math.Min(e.Y, down.Y)));
l.Add(new Point(Math.Max(e.X, down.X), Math.Max(e.Y, down.Y)));
l.Add(new Point(Math.Min(e.X, down.X), Math.Abs(down.Y - e.Y) + Math.Min(e.Y, down.Y)));
p = new Poligono(l, 'R');
p.Draw(color, image);
}
else if (flag.Equals("Circ"))
{
Primitivas.ponto_medio_circunf(down.X, down.Y, old.X, old.Y, white, image);
Primitivas.ponto_medio_circunf(down.X, down.Y, e.X, e.Y, color, image);
}
else if (flag.Equals("Elip"))
{
Primitivas.ponto_medio_elipse(down.X, down.Y, old.X, old.Y, white, image);
Primitivas.ponto_medio_elipse(down.X, down.Y, e.X, e.Y, color, image);
}
else if (flag.Equals("Reta"))
{
Primitivas.bresenham(down.X, down.Y, old.X, old.Y, white, image);
Primitivas.bresenham(down.X, down.Y, e.X, e.Y, color, image);
}
else if (flag.Equals("Livre"))
{
Primitivas.bresenham(liv.X, liv.Y, e.X, e.Y, color, image);
liv = e.Location;
}
else if (flag.Equals("Pol"))
{
Primitivas.bresenham(down.X, down.Y, old.X, old.Y, white, image);
Primitivas.bresenham(down.X, down.Y, e.X, e.Y, color, image);
}
old = e.Location;
pbMain.Image = image;
}
lbX.Text = e.X + "";
lbY.Text = e.Y + "";
}
public void SetPoligono(Object o)
{
this.p = (Poligono)o;
pictureBox1.Width = Width - 15;
pictureBox1.Height = Height - 45;
pictureBox1.Location = new Point(Location.X, Location.Y);
image = new Bitmap(pictureBox1.Width, pictureBox1.Height);
Point centro = p.Centro();
Point min = p.MinPoint(), max = p.MaxPoint();
p.Escala(((double)Width - 15) / (max.X - min.X), ((double)Height - 45) / (max.Y - min.Y));
p.Translacao(-min.X, -min.Y);
p.Draw(Color.Black, image);
pictureBox1.Image = image;
}
public static void cisalhamento(int x, int y, Poligono p)
{
double[,] maT = new double[3, 3];
maT[0, 0] = 1;
maT[0, 1] = 0;
maT[0, 2] = 0;
maT[1, 0] = x;
maT[1, 1] = 1;
maT[1, 2] = 0;
maT[2, 0] = 0;
maT[2, 1] = 0;
maT[2, 2] = 1;
p.MA = multiplicaMatriz(maT, p.MA);
for (int i = 0; i < p.linha; i++)
{
p.MAXY[i, 0] = (int)Math.Round(p.MA[0, 0] * p.MOXY[i, 0] + p.MA[0, 1] * p.MOXY[i, 1] + p.MA[0, 2]);
p.MAXY[i, 1] = (int)Math.Round(p.MA[1, 0] * p.MOXY[i, 0] + p.MA[1, 1] * p.MOXY[i, 1] + p.MA[1, 2]);
}
maT[0, 0] = 1;
maT[0, 1] = y;
maT[0, 2] = 0;
maT[1, 0] = 0;
maT[1, 1] = 1;
maT[1, 2] = 0;
maT[2, 0] = 0;
maT[2, 1] = 0;
maT[2, 2] = 1;
p.MA = multiplicaMatriz(maT, p.MA);
for (int i = 0; i < p.linha; i++)
{
p.MAXY[i, 0] = (int)Math.Round(p.MA[0, 0] * p.MOXY[i, 0] + p.MA[0, 1] * p.MOXY[i, 1] + p.MA[0, 2]);
p.MAXY[i, 1] = (int)Math.Round(p.MA[1, 0] * p.MOXY[i, 0] + p.MA[1, 1] * p.MOXY[i, 1] + p.MA[1, 2]);
}
}
public static void Scanline(Poligono p, int cx, int cy, int r, int g, int b, Bitmap imageBitmapSrc)
{
int y;
criaET(p);
aet = null;
for (y = 0; et[y] != null; y++)
{
}
//aet = et[y];
do
{
insereAET(y);
excluiAET(y);
ordenaAET();
desenhaLinha(cx, cy, y, r, g, b, imageBitmapSrc);
atualizaXmin();
y++;
}while (aet != null);
}
public static void rotacionar(int ang, Poligono p)
{
double[,] maT = new double[3, 3];
maT[0, 0] = Math.Cos(ang);
maT[0, 1] = -Math.Sin(ang);
maT[0, 2] = 0;
maT[1, 0] = Math.Sin(ang);
maT[1, 1] = Math.Cos(ang);
maT[1, 2] = 0;
maT[2, 0] = 0;
maT[2, 1] = 0;
maT[2, 2] = 1;
p.MA = multiplicaMatriz(maT, p.MA);
for (int i = 0; i < p.linha; i++)
{
p.MAXY[i, 0] = (int)Math.Round(p.MA[0, 0] * p.MOXY[i, 0] + p.MA[0, 1] * p.MOXY[i, 1] + p.MA[0, 2]);
p.MAXY[i, 1] = (int)Math.Round(p.MA[1, 0] * p.MOXY[i, 0] + p.MA[1, 1] * p.MOXY[i, 1] + p.MA[1, 2]);
}
}
private void PictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (down.X != -1 && !flag.Equals(""))
{
if (flag.Equals("Livre") || flag.Equals("Reta") || flag.Equals("Circ") || flag.Equals("Elip"))
{
old.X = 0;
down.X = -1;
}
else
if (!flag.Equals("Pol"))
{
p.Pol1 = "Poligono " + (lvPolig.Items.Count + 1);
lvPolig.Items.Add(p);
p = new Poligono();
old.X = 0;
down.X = -1;
}
else
if (p.PontosAtuais.Count > 2 && e.Button == MouseButtons.Right)
{
Primitivas.bresenham(down.X, down.Y, p.PontosOriginais[0].X, p.PontosOriginais[0].Y, Color.Black, image);
p.Pol1 = "Poligono " + (lvPolig.Items.Count + 1);
lvPolig.Items.Add(p);
p = new Poligono();
old.X = 0;
down.X = -1;
}
else
{
down = e.Location;
}
}
pbMain.Image = image;
}
private void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (lvPolig.SelectedIndex > -1)
{
p = (Poligono)lvPolig.Items[lvPolig.SelectedIndex];
p.Draw(Color.Red, image);
DataTable dt = new DataTable();
dt.Columns.Add("X");
dt.Columns.Add("Y");
foreach (Point pts in p.PontosAtuais)
{
DataRow dr = dt.NewRow();
dr["X"] = pts.X;
dr["Y"] = pts.Y;
dt.Rows.Add(dr);
}
gbTrans.Enabled = true;
dataGridView1.DataSource = dt;
pbMain.Image = image;
}
}
private void PictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (!flag.Equals(""))
{
if (flag.Equals("Bal"))
{
FloodFill(e.Location, cdCor.Color);
pbMain.Image = image;
}
else
{
if (down.X == -1)
{
p = new Poligono();
}
down = liv = e.Location;
if (flag.Equals("Pol") && down.X != -1)
{
p.AddPonto(down);
}
}
}
}
public void SetPoligono(Object p)
{
this.p = new Poligono((Poligono)p);
}
public static void flipVH(Poligono p)
{
flipV(p);
flipH(p);
}
