public virtual IDrawObject Clone()
{
LineTool l = new LineTool(Type);
l.Copy(this);
return(l);
}
public RectangleF GetBoundingRect(ICanvas canvas)
{
try
{
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
RectangleF rect = RectangleF.Empty;
if (m_p2.IsEmpty || m_p3.IsEmpty)
{
rect = ScreenUtils.GetRect(m_p1, m_lastPoint, thWidth);
}
if (rect.IsEmpty)
{
float r = m_radius + thWidth / 2;
rect = HitUtil.CircleBoundingRect(m_center, r);
if (Selected)
{
float w = (float)canvas.ToUnit(20);
rect.Inflate(w, w);
}
}
if (m_lastPoint.IsEmpty == false)
{
rect = RectangleF.Union(rect, new RectangleF(m_lastPoint.Point, new SizeF(0, 0)));
}
return(rect);
}
catch (Exception ex)
{ throw ex; }
}
public virtual void Copy(LineTool acopy)
{
base.Copy(acopy);
m_p1 = acopy.m_p1;
m_p2 = acopy.m_p2;
Selected = acopy.Selected;
Lenth = acopy.Lenth;
}
protected virtual void MouseMovePerpendicular(ICanvas canvas, UnitPoint point)
{
if (m_perSnap.Owner is LineTool)
{
LineTool src = m_perSnap.Owner as LineTool;
m_p1 = HitUtil.NearestPointOnLine(src.P1, src.P2, point, true);
m_p2 = point;
}
}
public NodePointLine(LineTool owner, ePoint id)
{
try
{
m_owner = owner;
m_clone = m_owner.Clone() as LineTool;
m_pointId = id;
m_originalPoint = GetPoint(m_pointId);
}
catch (Exception ex)
{ throw ex; }
}
public void Finish()
{
try
{
m_endPoint = GetPoint(m_pointId);
m_owner.P1 = m_clone.P1;
m_owner.P2 = m_clone.P2;
m_clone = null;
}
catch (Exception ex)
{ throw ex; }
}
protected void SetPoint(ePoint pointid, UnitPoint point, LineTool line)
{
try
{
if (pointid == ePoint.P1)
{
line.P1 = point;
}
if (pointid == ePoint.P2)
{
line.P2 = point;
}
}
catch (Exception ex)
{ throw ex; }
}
/// <summary>
/// 得到当前图形元素的矩形区域
/// </summary>
public RectangleF GetBoundingRect(ICanvas canvas)
{
try
{
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
float ProduceWidth = canvas.ToScreen(width / 96);
float ProduceHight = canvas.ToScreen(height / 96);
UnitPoint Aqlocation = new UnitPoint(location.X + canvas.ToUnit(ProduceWidth), location.Y - canvas.ToUnit(ProduceHight));
return(ScreenUtils.GetRect(location, Aqlocation, thWidth));
}
catch (Exception ex)
{ throw ex; }
}
public virtual bool PointInObject(ICanvas canvas, UnitPoint point)
{
try
{
RectangleF boundingrect = GetBoundingRect(canvas);
if (boundingrect.Contains(point.Point) == false)
{
return(false);
}
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
if (HitUtil.PointInPoint(m_center, point, thWidth))
{
return(true);
}
return(HitUtil.IsPointInCircle(m_center, m_radius, point, thWidth / 2));
}
catch (Exception ex)
{ throw ex; }
}
/// <summary>
/// 得到当前图形元素的矩形区域
/// </summary>
public RectangleF GetBoundingRect(ICanvas canvas)
{
try
{
//Font m_font = new System.Drawing.Font("Arial Black", FontSize, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
//SizeF size= canvas.GetStrValueSize(StrValue, m_font);
//UnitPoint aqlocation = new UnitPoint(location.X + (float)canvas.ToUnit(size.Width), location.Y - (float)canvas.ToUnit(size.Height));
//return ScreenUtils.GetRect(location, aqlocation, 0);
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
if (thWidth < Width)
{
thWidth = Width;
}
UnitPoint Aqlocation = new UnitPoint(location.X + canvas.ToUnit((float)10 * str_value.Length), location.Y - canvas.ToUnit(10F));
return(ScreenUtils.GetRect(location, Aqlocation, thWidth));
}
catch (Exception ex)
{ throw ex; }
}
public virtual eDrawObjectMouseDownEnum OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
try
{
Selected = false;
if (snappoint is PerpendicularSnapPoint && snappoint.Owner is LineTool)
{
LineTool src = snappoint.Owner as LineTool;
m_p2 = HitUtil.NearestPointOnLine(src.P1, src.P2, m_p1, true);
return(eDrawObjectMouseDownEnum.DoneRepeat);
}
if (Control.ModifierKeys == Keys.Control)
{
point = HitUtil.OrthoPointD(m_p1, point, 45);
}
m_p2 = point;
return(eDrawObjectMouseDownEnum.DoneRepeat);
}
catch (Exception ex)
{ throw ex; }
}
public ISnapPoint SnapPoint(ICanvas canvas, UnitPoint point, List <IDrawObject> otherobjs, Type[] runningsnaptypes, Type usersnaptype)
{
try
{
if (Type == LineType.Line || Type == LineType.Dote)
{
float thWidth = ThresholdWidth(canvas, Width);
if (runningsnaptypes != null)
{
foreach (Type snaptype in runningsnaptypes)
{
if (snaptype == typeof(VertextSnapPoint))
{
if (HitUtil.CircleHitPoint(m_p1, thWidth, point))
{
return(new VertextSnapPoint(canvas, this, m_p1));
}
if (HitUtil.CircleHitPoint(m_p2, thWidth, point))
{
return(new VertextSnapPoint(canvas, this, m_p2));
}
}
//if (snaptype == typeof(MidpointSnapPoint))
//{
// UnitPoint p = MidPoint(canvas, m_p1, m_p2, point);
// if (p != UnitPoint.Empty)
// return new MidpointSnapPoint(canvas, this, p);
//}
if (snaptype == typeof(IntersectSnapPoint))
{
LineTool otherline = Utiles.FindObjectTypeInList(this, otherobjs, typeof(LineTool)) as LineTool;
if (otherline == null)
{
continue;
}
UnitPoint p = HitUtil.LinesIntersectPoint(m_p1, m_p2, otherline.m_p1, otherline.m_p2);
if (p != UnitPoint.Empty)
{
return(new IntersectSnapPoint(canvas, this, p));
}
}
}
return(null);
}
//if (usersnaptype == typeof(MidpointSnapPoint))
// return new MidpointSnapPoint(canvas, this, HitUtil.LineMidpoint(m_p1, m_p2));
if (usersnaptype == typeof(IntersectSnapPoint))
{
LineTool otherline = Utiles.FindObjectTypeInList(this, otherobjs, typeof(LineTool)) as LineTool;
if (otherline == null)
{
return(null);
}
UnitPoint p = HitUtil.LinesIntersectPoint(m_p1, m_p2, otherline.m_p1, otherline.m_p2);
if (p != UnitPoint.Empty)
{
return(new IntersectSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(VertextSnapPoint))
{
double d1 = HitUtil.Distance(point, m_p1);
double d2 = HitUtil.Distance(point, m_p2);
if (d1 <= d2)
{
return(new VertextSnapPoint(canvas, this, m_p1));
}
return(new VertextSnapPoint(canvas, this, m_p2));
}
if (usersnaptype == typeof(NearestSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnLine(m_p1, m_p2, point);
if (p != UnitPoint.Empty)
{
return(new NearestSnapPoint(canvas, this, p));
}
}
if (usersnaptype == typeof(PerpendicularSnapPoint))
{
UnitPoint p = HitUtil.NearestPointOnLine(m_p1, m_p2, point);
if (p != UnitPoint.Empty)
{
return(new PerpendicularSnapPoint(canvas, this, p));
}
}
}
return(null);
}
catch (Exception ex)
{ throw ex; }
}
public RectangleF GetBoundingRect(ICanvas canvas)
{
float thWidth = LineTool.ThresholdWidth(canvas, Width, ThresholdPixel);
return(ScreenUtils.GetRect(new UnitPoint(position.X - 0.2, position.Y + 0.2), new UnitPoint(position.X + 0.2, position.Y - 0.2), thWidth));
}