public String CreateObjName()
{
int No = 1;
for (int n = 0; n <= ObjList.Count() - 1; n++)
{
if (ObjList[n].ObjName == (ActivedObjType.ToString() + No.ToString()))
{
No = No + 1;
}
}
return(ActivedObjType.ToString() + No.ToString());
}
//protected override void OnPaint(PaintEventArgs pe)
//{
// //SolidBrush brush = new SolidBrush(_backColor);
// // pe.Graphics.FillRectangle(brush, this.ClientRectangle);
// using (Bitmap bufferimage = new Bitmap(this.Width, this.Height))
// {
// Graphics g = Graphics.FromImage(bufferimage);
// if (objList != null)
// {
// ObjList.Draw(g, this);
// }
// using (Graphics tg = pe.Graphics)
// {
// tg.DrawImage(bufferimage, 0, 0); //把画布贴到画面上
// }
// g.Dispose();
// }
// // brush.Dispose();
// // Calling the base class OnPaint
// base.OnPaint(pe);
//}
private void VisualGraph_Paint(object sender, PaintEventArgs e)
{
SolidBrush brush = new SolidBrush(_backColor);
e.Graphics.FillRectangle(brush, this.ClientRectangle);
if (ShowGrid)
{
// ControlPaint.DrawGrid(e.Graphics, this.ClientRectangle, gridSize, this.BackColor);
}
if (objList != null)
{
ObjList.Draw(e.Graphics, this);
}
brush.Dispose();
}
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);
}
}
}
private void VisualGraph_Paint(object sender, PaintEventArgs e)
{
e.Graphics.PageUnit = GraphicsUnit.Pixel;
e.Graphics.PageScale = M_Scalef;
SolidBrush brush = new SolidBrush(_backColor);
e.Graphics.FillRectangle(brush, this.ClientRectangle);
if (ShowGrid)
{
ControlPaint.DrawGrid(e.Graphics, this.ClientRectangle, gridSize, this.BackColor);
}
if (objList != null)
{
ObjList.Draw(e.Graphics, this);
}
DrawSelectAll(e.Graphics);
brush.Dispose();
}
protected override void OnPaint(PaintEventArgs pe)
{
using (Bitmap bufferimage = new Bitmap(this.Width, this.Height))
{
Graphics g = Graphics.FromImage(bufferimage);
SolidBrush brush = new SolidBrush(_backColor);
g.FillRectangle(brush, this.ClientRectangle);
brush.Dispose();
if (objList != null)
{
ObjList.Draw(g, this);
}
using (Graphics tg = pe.Graphics)
{
tg.DrawImage(bufferimage, 0, 0); //把画布贴到画面上
}
g.Dispose();
}
base.OnPaint(pe);
}
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);
}
}
}