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 + "";
}
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;
}
