protected override void OnMouseDown(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left) //左键
{
bool flag = false;
foreach (Control c in DesingerHost.Controls) //遍历控件容器 看是否选中其中某一控件
{
Rectangle r = c.Bounds;
r = DesingerHost.RectangleToScreen(r);
r = this.RectangleToClient(r);
Rectangle rr = r;
rr.Inflate(10, 10);
if (rr.Contains(e.Location))
{
recter.Rect = r;
_currentCtrl = c;
recter.IsForm = false;
flag = true;
Invalidate2(false);
break;
}
}
if (!flag) //没有控件被选中，判断是否选中控件容器
{
Rectangle r = DesingerHost.Bounds;
r = Parent.RectangleToScreen(r);
r = this.RectangleToClient(r);
if (r.Contains(e.Location))
{
recter.Rect = r;
recter.IsForm = true;
_currentCtrl = null;
Invalidate2(false);
}
}
DragType dt = recter.GetMouseDragType(e.Location); //判断是否可以进行鼠标操作
if (dt != DragType.None)
{
_mouseDown = true;
_firstPoint = e.Location;
_dragType = dt;
}
}
base.OnMouseDown(e);
}
private void DesingerLayer_DragDrop(object sender, DragEventArgs e)
{
DataRow dr = (DataRow)e.Data.GetData(typeof(DataRow));
TableDesingerHandler tableDesingerHandler = new TableDesingerHandler();
DBSubPlugin.process(new DataRow[] { dr }, tableDesingerHandler);
TableDesingerUI t = new TableDesingerUI();
t.TableInfo = tableDesingerHandler.tableInfos[0];
t.init();
t.Location = DesingerHost.PointToClient(new Point(e.X, e.Y));
DesingerHost.Controls.Add(t);
t.BringToFront();
_currentCtrl = t;
Rectangle r = DesingerHost.RectangleToScreen(t.Bounds);
recter.Rect = this.RectangleToClient(r);
//recter.Rect = t.Bounds;
Invalidate2(false);
}