//将所选工具加入到页面容器中
private void VisualGraph_DragDrop(object sender, DragEventArgs e)
{
Point point = new Point(e.X, e.Y);
point = this.PointToClient(point);
switch (activedObjType)
{
case Global.DrawType.DrawText:
DrawText text = new DrawText(point, this);
objList.UnselectAll();
objList.AddObject(text);
text.Selected = true;
break;
case Global.DrawType.DrawRectangle:
DrawRectangle rect = new DrawRectangle(point, this);
objList.UnselectAll();
objList.AddObject(rect);
rect.Selected = true;
break;
case Global.DrawType.DrawEllipse:
DrawEllipse elip = new DrawEllipse(point, this);
objList.UnselectAll();
objList.AddObject(elip);
elip.Selected = true;
break;
case Global.DrawType.DrawLine:
DrawLine line = new DrawLine(point, this);
objList.UnselectAll();
objList.AddObject(line);
line.Selected = true;
break;
case Global.DrawType.DrawPic:
DrawPic pic = new DrawPic(point, this);
objList.UnselectAll();
objList.AddObject(pic);
pic.Selected = true;
break;
}
activedObjType = Global.DrawType.POINTER;
this.Refresh();
}
public void LoadFromXml(string file)
{
XmlDocument xdoc = new XmlDocument();
XmlTextReader xtr = new XmlTextReader(file);
xdoc.Load(xtr);
int n = xdoc.DocumentElement.ChildNodes.Count;
for (int i = 0; i < n; i++)
{
XmlElement xe = (XmlElement)xdoc.DocumentElement.ChildNodes[i];
string drawObjectType = xe.GetAttribute("Type");
if (drawObjectType.Equals("VisualGraph"))
{
DocFromXml(xe);
}
else
{
DrawObject drawObject = null;
switch (drawObjectType)
{
case "DrawEllipse":
drawObject = (DrawObject)Activator.CreateInstance(typeof(DrawEllipse));
break;
case "DrawLine":
drawObject = (DrawObject)Activator.CreateInstance(typeof(DrawLine));
break;
case "DrawPic":
drawObject = (DrawObject)Activator.CreateInstance(typeof(DrawPic));
break;
case "DrawRectangle":
drawObject = (DrawObject)Activator.CreateInstance(typeof(DrawRectangle));
break;
case "DrawText":
drawObject = (DrawObject)Activator.CreateInstance(typeof(DrawText));
break;
}
drawObject.ReadFromXml(xe);
ObjList.AddObject(drawObject);
}
}
}
public void LoadFromXml(string file)
{
XmlDocument xdoc = new XmlDocument();
XmlTextReader xtr = new XmlTextReader(file);
xdoc.Load(xtr);
int n = xdoc.DocumentElement.ChildNodes.Count;
for (int i = 0; i < n; i++)
{
XmlElement xe = (XmlElement)xdoc.DocumentElement.ChildNodes[i];
string drawObjectType = xe.GetAttribute("Type");
if (drawObjectType.Equals("VisualGraph"))
{
DocFromXml(xe);
}
else
{
DrawObject drawObject = (DrawObject)Activator.CreateInstance("VisualGraph", "VisualGraph." + drawObjectType).Unwrap();
drawObject.ReadFromXml(xe);
ObjList.AddObject(drawObject);
}
}
}