private void MyRectangle(Point startP, Point endP)
{
Apis.MoveToEx(hdc, startP.X, startP.Y, IntPtr.Zero);
//Apis.LineTo(hdc, pt2.X, pt2.Y);
SketchpadPosition = new Rectangle(startP.X, startP.Y, endP.X, endP.Y);
Apis.Rectangle(hdc, SketchpadPosition.X, SketchpadPosition.Y, SketchpadPosition.Width, SketchpadPosition.Height);
}
/// <summary>
/// ＂鼠标按下＂事件处理方法
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Panel1_MouseDown(object sender, MouseEventArgs e)
{
if (!m_isdown)
{
m_isdown = true;
StartLocation = new Point(e.X, e.Y);
EndLocation = new Point(e.X, e.Y);
hdc = Apis.GetDC(this.panel1.Handle);
Apis.SetROP2(hdc, R2.R2_NOTCOPYPEN);
}
else
{
MyRectangle(StartLocation, EndLocation);
MyRectangle(StartLocation, new Point(e.X, e.Y));
Apis.ReleaseDC(this.panel1.Handle, hdc);
}
#region 标按下网格处理代码
bool isclick = false;
if (e.Button == MouseButtons.Left)
{
for (int i = 0; i < Grids.Count; i++)
{
Point mouseLocation = e.Location;
if ((Grids[i].Type == -1 || Grids[i].Type == 2 || Grids[i].Type == 1) && Grids[i].Rect.Contains(mouseLocation))
{
for (int k = 0; k < Grids.Count; k++)
{
bool isSelected = SelectedRowAndCol(Grids[i].Type, Grids[i].DridLocation, Grids[k].DridLocation);
if (isSelected)
{
Grids[k].IsSelected = true;
isclick = true;
panel1.Invalidate(Grids[k].Rect);
}
else
{
if (Grids[k].IsSelected)
{
Grids[k].IsSelected = false;
panel1.Invalidate(Grids[k].Rect);
}
}
}
}
if (Grids[i].Type == 0)
{
if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
{
if (Grids[i].Rect.Contains(mouseLocation))
{
Grids[i].IsSelected = true;
panel1.Invalidate(Grids[i].Rect);
}
}
else
{
if (Grids[i].Rect.Contains(mouseLocation))
{
Grids[i].IsSelected = true;
isclick = false;
panel1.Invalidate(Grids[i].Rect);
}
else
{
if (isclick)
{
continue;
}
if (Grids[i].IsSelected)
{
Grids[i].IsSelected = false;
panel1.Invalidate(Grids[i].Rect);
}
}
}
}
}
}
#endregion
}