public static void DrawPoint(this Graphics g, Point p, ShapType type, Color color)
{
// 矩形繪製 : DrawRectangle (Pen pen , Rectangle rect)
// Pen 物件 可決定 矩形顏色 、 寬度、樣式
switch (type)
{
case ShapType.Rectangle:
g.DrawRectangle(new Pen(color), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.FillRectangle:
g.FillRectangle(new SolidBrush(color), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.Round:
g.DrawEllipse(new Pen(color), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.FillRound:
g.FillEllipse(new SolidBrush(color), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
default:
throw new NotSupportedException();
}
}
/// <summary>
///
/// </summary>
/// <param name="g"></param>
/// <param name="type"></param>
/// <param name="colorPoint"></param>
/// <param name="colorLine"></param>
/// <param name="arrPoints"></param>
public static void DrawLinkPoints(this Graphics g, ShapType type, Color colorPoint, Color colorLine, params Point[] arrPoints)
{
//
foreach (var p in arrPoints)
{
switch (type)
{ //Rectangle(起始x,起始y,寬,高);
case ShapType.Rectangle:
g.DrawRectangle(new Pen(colorPoint), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.FillRectangle:
g.FillRectangle(new SolidBrush(colorPoint), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.Round:
g.DrawEllipse(new Pen(colorPoint), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
case ShapType.FillRound:
g.FillEllipse(new SolidBrush(colorPoint), new Rectangle(p.X - 5, p.Y - 5, 11, 11));
break;
default:
throw new NotSupportedException();
}
}
for (int i = 0; i < arrPoints.Length - 1; i++)
{
g.DrawLine(new Pen(colorLine), arrPoints[i], arrPoints[i + 1]);
}
}
private void BtnRectangle_Click(object sender, EventArgs e)
{
selectedShap = ShapType.REC;
}
private void BtnRound_Click(object sender, EventArgs e)
{
selectedShap = ShapType.ROU;
}
private void BtnTriangle_Click(object sender, EventArgs e)
{
selectedShap = ShapType.TRI;
}
private void BtnArc_Click(object sender, EventArgs e)
{
selectedShap = ShapType.ARC;
}
