private void AddNewPoint(ImageEditor imgEd, MouseEventArgs e, Polygon polyg)
{
int pos = Math.Max(imgEd.CurPoints[0], imgEd.CurPoints[1]);
if (pos == polyg.VertexCount-1) pos++;
Point E = imgEd.ShiftPointIfNotEmpty(new Point(e.X, e.Y));
Graphics g = imgEd.GetGraphics();
polyg.Paint(g, new Pen(Brushes.White, 2));
polyg.AddVertexAt(pos, E);
imgEd.ReDraw();
g = imgEd.GetGraphics();
polyg.Paint(g);
imgEd.ReDraw();
imgEd.CurPoints.Clear();
}
public override void MouseDown(MouseEventArgs e, ImageEditor imgEd)
{
if (imgEd.CurPolygon == null) return;
Polygon p;
int ind = -1;
if (WhereIsThePoint(e, imgEd, out p, out ind) == false) return;
if (p.VertexCount <= 3) { MessageBox.Show("Количество точек контура минимально. Удаление невозможно"); return; }
Point point = new Point(p.GetVertex(ind).X, p.GetVertex(ind).Y); // todo подсветка точки
Graphics g = imgEd.GetGraphics();
p.Paint(g, new Pen(Brushes.White, 2));
imgEd.ReDraw();
p.RemoveVertexAt(ind);
g = imgEd.GetGraphics();
p.Paint(imgEd.g);
imgEd.ReDraw();
}
public override void MouseDown(MouseEventArgs e, ImageEditor imgEd)
{
Point E = imgEd.ShiftPointIfNotEmpty(new Point(e.X, e.Y));
Graphics g = imgEd.GetGraphics();
imgEd.CurPolygon.AddVertex(E);
if (imgEd.CurPolygon.VertexCount > 1)
g.DrawLine(new Pen(Brushes.Black, 2), E,
new Point(imgEd.CurPolygon.GetVertex(imgEd.CurPolygon.VertexCount - 2).X,
imgEd.CurPolygon.GetVertex(imgEd.CurPolygon.VertexCount - 2).Y));
else
g.DrawRectangle(new Pen(Brushes.Black, 2), E.X, E.Y, 1, 1);
imgEd.ReDraw();
}
public override void KeyPress(KeyPressEventArgs e, ImageEditor imgEd)
{
if (e.KeyChar == (char)Keys.Space)
{
if (imgEd.CurPolygon.VertexCount >= 3)
{
Graphics g = imgEd.GetGraphics();
g.DrawLine(new Pen(Brushes.Black, 2), new Point(imgEd.CurPolygon.GetVertex(0).X,
imgEd.CurPolygon.GetVertex(0).Y), new Point(imgEd.CurPolygon.GetVertex(imgEd.CurPolygon.VertexCount - 1).X,
imgEd.CurPolygon.GetVertex(imgEd.CurPolygon.VertexCount - 1).Y));
imgEd.ReDraw();
MessageBox.Show("Внешний контур создан");
imgEd.EditingOff();
imgEd.fm.SetbtInnerContour(true);
}
else MessageBox.Show("Контур не может содержать менее 3 точек!");
}
}