private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (IsBack)
{
OperaStep.RemoveNullStep();
}
//设置起点
x0 = e.X;
y0 = e.Y;
FrontImage = pictureBox.Image.Clone() as Image;
//标记鼠标摁下
IsMouseDown = true;
switch (NowCase)
{
case CASE.NoOperation:
break;
case CASE.Bezier:
break;
case CASE.line:
break;
case CASE.roundness:
break;
case CASE.ellipse:
break;
case CASE.rectangle:
break;
case CASE.pencil:
break;
case CASE.clip:
break;
case CASE.selected:
if (selectedShape != null)
{
if (selectedShape.PointInIt(x0, y0))
{
CaseChange(CASE.Panning);
}
else
{
selectedShape.unSelectShape();
//CaseChange(CASE.NoOperation);
selectedShape = null;
}
}
break;
case CASE.polygon:
break;
case CASE.Panning:
break;
default:
break;
}
}
