public void Copy()
{
int n = SelectionCount;
tempList.Clear();
for (int i = 0; i < n; i++)
{
DrawObject o = (DrawObject)GetSelectedObject(i);
tempList.Add(o);
}
}
public void Clone(VisualGraph drawArea)
{
int n = tempList.Count;
Point point;
for (int i = 0; i < n; i++)
{
DrawObject o = (DrawObject)tempList[i];
point = new Point(o.ShapeRect.X + 10, o.ShapeRect.Y + 10);
switch (o.ObjectType)
{
case Global.DrawType.DrawEllipse:
DrawEllipse dp = new DrawEllipse(point, drawArea);
dp.Selected = false;
objList.Add(dp);
break;
case Global.DrawType.DrawLine:
DrawLine dl = new DrawLine(point, drawArea);
dl.Selected = false;
dl.StartPoint = point;
dl.EndPoint = new Point(point.X + o.ShapeRect.Width, point.Y + o.ShapeRect.Height);
dl.Width = o.ShapeRect.Width;
dl.Height = o.ShapeRect.Height;
dl.PenWidth = o.PenWidth;
dl.Color = o.Color;
objList.Add(dl);
break;
case Global.DrawType.DrawRectangle:
DrawRectangle dr = new DrawRectangle(point, drawArea);
dr.Selected = false;
objList.Add(dr);
break;
case Global.DrawType.DrawText:
DrawText dt = new DrawText(point, drawArea);
dt.Selected = false;
objList.Add(dt);
break;
case Global.DrawType.DrawPic:
DrawPic oldpic = (DrawPic)o;
DrawPic dpic = new DrawPic(point, drawArea);
Rectangle ret = new Rectangle(point.X, point.Y, oldpic.ShapeRect.Width, oldpic.ShapeRect.Height);
dpic.ShapeRect = ret;
dpic.TheImage = oldpic.TheImage;
dpic.Selected = false;
objList.Add(dpic);
break;
}
}
drawArea.ActivedObjType = Global.DrawType.POINTER;
}
public void AlignVCenter()
{
int MinLeft = MAX;
int MaxRight = 0;
int VCenter = 0;
int tempL;
int tempR;
int n = SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
tempL = Math.Min(l.StartPoint.X, l.EndPoint.X);
tempR = Math.Max(l.StartPoint.X, l.EndPoint.X);
}
else
{
tempL = o.ShapeRect.X;
tempR = o.ShapeRect.Right;
}
if (tempL < MinLeft)
{
MinLeft = tempL;
}
if (tempR > MaxRight)
{
MaxRight = tempR;
}
}
VCenter = (MinLeft + MaxRight) / 2;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
l.Move(VCenter - (l.StartPoint.X + l.EndPoint.X) / 2, 0);
}
else
{
int center = (o.ShapeRect.Left + o.ShapeRect.Right) / 2;
o.ShapeRect = new Rectangle(o.ShapeRect.Left + (VCenter - center),
o.ShapeRect.Top, o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
public void AlignHCenter()
{
int MinTop = MAX;
int MaxBottom = 0;
int HCenter = 0;
int tempT;
int tempB;
int n = SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
tempT = Math.Min(l.StartPoint.Y, l.EndPoint.Y);
tempB = Math.Max(l.StartPoint.Y, l.EndPoint.Y);
}
else
{
tempT = o.ShapeRect.Top;
tempB = o.ShapeRect.Bottom;
}
if (tempT < MinTop)
{
MinTop = tempT;
}
if (tempB > MaxBottom)
{
MaxBottom = tempB;
}
}
HCenter = (MinTop + MaxBottom) / 2;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
l.Move(0, HCenter - (l.StartPoint.Y + l.EndPoint.Y) / 2);
}
else
{
int center = (o.ShapeRect.Top + o.ShapeRect.Bottom) / 2;
o.ShapeRect = new Rectangle(o.ShapeRect.Left, o.ShapeRect.Top +
(HCenter - center), o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
public int GetSelectedObjectIndex()
{
int n;
n = objList.Count;
for (int i = n - 1; i >= 0; i--)
{
DrawObject o = (DrawObject)objList[i];
if (o.Selected)
{
return(i);
}
}
return(-1);
}
public bool DeleteSelection() //ɾ³ý
{
bool result = false;
int n = objList.Count;
for (int i = n - 1; i >= 0; i--)
{
if (((DrawObject)objList[i]).Selected)
{
DrawObject o = (DrawObject)objList[i];
objList.RemoveAt(i);
result = true;
}
}
return(result);
}
public void AlignLeft()
{
int MinLeft = MAX;
int temp;
int n = SelectionCount;
//找到最左边的X左边
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
temp = Math.Min(l.StartPoint.X, l.EndPoint.X);
}
else
{
temp = o.ShapeRect.Left;
}
if (temp < MinLeft)
{
MinLeft = temp;
}
}
//修改所有选中元素到最左坐标
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
if (l.StartPoint.X < l.EndPoint.X)
{
l.Move(MinLeft - l.StartPoint.X, 0);
}
else
{
l.Move(MinLeft - l.EndPoint.X, 0);
}
}
else
{
o.ShapeRect = new Rectangle(MinLeft, o.ShapeRect.Top, o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
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 AlignTop()
{
int MinTop = MAX;
int temp;
int n = SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine )o;
temp = Math.Min(l.StartPoint.Y, l.EndPoint.Y);
}
else
{
temp = o.ShapeRect.Top;
}
if (temp < MinTop)
{
MinTop = temp;
}
}
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
if (l.StartPoint.Y < l.EndPoint.Y)
{
l.Move(0, MinTop - l.StartPoint.Y);
}
else
{
l.Move(0, MinTop - l.EndPoint.Y);
}
}
else
{
o.ShapeRect = new Rectangle(o.ShapeRect.Left, MinTop, o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
public void AlignBottom()
{
int MaxBottom = 0;
int temp;
int n = SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
temp = Math.Max(l.StartPoint.Y, l.EndPoint.Y);
}
else
{
temp = o.ShapeRect.Bottom;
}
if (temp > MaxBottom)
{
MaxBottom = temp;
}
}
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
if (l.StartPoint.Y > l.EndPoint.Y)
{
l.Move(0, MaxBottom - l.StartPoint.Y);
}
else
{
l.Move(0, MaxBottom - l.EndPoint.Y);
}
}
else
{
o.ShapeRect = new Rectangle(o.ShapeRect.Left,
MaxBottom - o.ShapeRect.Height, o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
public void AlignRight()
{
int MaxRight = 0;
int temp;
int n = SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
temp = Math.Max(l.StartPoint.X, l.EndPoint.X);
}
else
{
temp = o.ShapeRect.Right;
}
if (temp > MaxRight)
{
MaxRight = temp;
}
}
for (int i = 0; i < n; i++)
{
DrawObject o = GetSelectedObject(i);
if (o.ObjectType == Global.DrawType.DrawLine)
{
DrawLine l = (DrawLine)o;
if (l.StartPoint.X > l.EndPoint.X)
{
l.Move(MaxRight - l.StartPoint.X, 0);
}
else
{
l.Move(MaxRight - l.EndPoint.X, 0);
}
}
else
{
o.ShapeRect = new Rectangle(MaxRight - o.ShapeRect.Width, o.ShapeRect.Top,
o.ShapeRect.Width, o.ShapeRect.Height);
}
}
}
public override void OnMouseUp(VisualGraph drawArea, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
if (selectMode == SelectionMode.NetSelection)
{
drawArea.ObjList.SelectInRectangle(drawArea.NetRectangle);
selectMode = SelectionMode.None;
drawArea.DrawNetRectangle = false;
}
if (resizedObject != null)
{
resizedObject.Normalize();
resizedObject = null;
}
selectMode = SelectionMode.None;
drawArea.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 = (DrawObject)Activator.CreateInstance("VisualGraph", "VisualGraph." + drawObjectType).Unwrap();
drawObject.ReadFromXml(xe);
ObjList.AddObject(drawObject);
}
}
}
public override void OnMouseMove(VisualGraph drawArea, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
for (int i = drawArea.ObjList.Count() - 1; i >= 0; i--)
{
int n = drawArea.ObjList[i].HitTest(point);
if (n > 0)
{
cursor = drawArea.ObjList[i].GetHandleCursor(n);
break;
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
int dx = point.X - lastPoint.X;
int dy = point.Y - lastPoint.Y;
lastPoint.X = point.X;
lastPoint.Y = point.Y;
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
drawArea.Refresh();
}
}
if (selectMode == SelectionMode.Move)
{
int n = drawArea.ObjList.SelectionCount;
for (int i = n - 1; i >= 0; i--)
{
drawArea.ObjList.GetSelectedObject(i).Move(dx, dy);
}
DrawObject l = (DrawObject)drawArea.ObjList.GetSelectedObject(point);
if (l != null)
{
drawArea.Cursor = Cursors.SizeAll;
}
drawArea.Refresh();
}
if (selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
return;
}
}
public override void OnMouseDown(VisualGraph drawArea, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
selectMode = SelectionMode.None;
int n = drawArea.ObjList.SelectionCount;
for (int i = n - 1; i >= 0; i--)
{
DrawObject o = drawArea.ObjList.GetSelectedObject(i);
int handleNumber = o.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
resizedObject = o;
resizedObjectHandle = handleNumber;
drawArea.ObjList.UnselectAll();
o.Selected = true;
break;
}
}
if (selectMode == SelectionMode.None)
{
int m = drawArea.ObjList.Count();
DrawObject o = null;
for (int i = m - 1; i >= 0; i--)
{
if (drawArea.ObjList[i].HitTest(point) == 0)
{
o = drawArea.ObjList[i];
break;
}
}
if (o != null)
{
selectMode = SelectionMode.Move;
if ((Control.ModifierKeys & Keys.Control) == 0 && !o.Selected)
{
drawArea.ObjList.UnselectAll();
}
o.Selected = true;
//»Ñ¡Ôñ±ß¿ò
drawArea.Cursor = Cursors.SizeAll;
}
}
if (selectMode == SelectionMode.None)
{
if ((Control.ModifierKeys & Keys.Control) == 0)
{
drawArea.ObjList.UnselectAll();
}
selectMode = SelectionMode.NetSelection;
drawArea.DrawNetRectangle = true;
}
lastPoint.X = point.X;
lastPoint.Y = point.Y;
startPoint.X = point.X;
startPoint.Y = point.Y;
drawArea.Capture = true;
drawArea.NetRectangle = GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
}
public void AddObject(DrawObject o)
{
objList.Add(o);
}