public void TrySnapConnectCrvToRectShape(ICanvas canvas, IConnectionCurve crv)
{
if (crv == null)
{
return;
}
List <IDrawObject> allSelectObjs = GetHitObjects(canvas, ((IDrawObject)crv).GetBoundingRect(canvas), true);
foreach (var curObj in allSelectObjs)
{
DrawTools.RectBase rectBase = curObj as DrawTools.RectBase;
if (rectBase == null)
{
continue;
}
DrawTools.RectBase.eVertexId vid = rectBase.GetVertexIdFromPoint(crv.StartPoint.GetPosition());
if (vid != DrawTools.RectBase.eVertexId.None)
{
rectBase.AttachConnectionCrvNode(crv.StartPoint);
}
vid = rectBase.GetVertexIdFromPoint(crv.EndPoint.GetPosition());
if (vid != DrawTools.RectBase.eVertexId.None)
{
rectBase.AttachConnectionCrvNode(crv.EndPoint);
}
}
}
public eDrawObjectMouseDown OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
if (snappoint is SnapPointBase && snappoint.Owner is RectBase)
{
NodePointMultiConnectionLine.ePoint pointType = HitUtil.Distance(point, m_p1) < HitUtil.Distance(point, m_p2) ?
NodePointMultiConnectionLine.ePoint.P1 : NodePointMultiConnectionLine.ePoint.P2;
RectBase rect = snappoint.Owner as RectBase;
rect.AttachConnectionCrvNode(new NodePointMultiConnectionLine(this, pointType));
if (pointType == NodePointMultiConnectionLine.ePoint.P1)
{
m_p1 = point;
}
else
{
m_p2 = point;
}
return(eDrawObjectMouseDown.Done);
}
OnMouseMove(canvas, point);
Selected = false;
if (m_allPts == null || m_allPts.Count < 2)
{
return(eDrawObjectMouseDown.Cancel);
}
return(eDrawObjectMouseDown.Done);
}
public eDrawObjectMouseDown OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
Selected = false;
OnMouseMove(canvas, point);
if (snappoint is PerpendicularSnapPoint && snappoint.Owner is Line)
{
Line src = snappoint.Owner as Line;
m_p2 = HitUtil.NearestPointOnLine(src.P1, src.P2, m_p1, true);
return(eDrawObjectMouseDown.DoneRepeat);
}
if (snappoint is PerpendicularSnapPoint && snappoint.Owner is Arc)
{
Arc src = snappoint.Owner as Arc;
m_p2 = HitUtil.NearestPointOnCircle(src.Center, src.Radius, m_p1, 0);
return(eDrawObjectMouseDown.DoneRepeat);
}
if (snappoint is SnapPointBase && snappoint.Owner is RectBase)
{
NodePointCubicBezier.ePoint pointType = HitUtil.Distance(point, m_p1) < HitUtil.Distance(point, m_p2) ?
NodePointCubicBezier.ePoint.P1 : NodePointCubicBezier.ePoint.P2;
RectBase rect = snappoint.Owner as RectBase;
rect.AttachConnectionCrvNode(new NodePointCubicBezier(this, pointType));
if (pointType == NodePointCubicBezier.ePoint.P1)
{
m_p1 = point;
}
else
{
m_p2 = point;
}
UpdateCtrlPts();
return(eDrawObjectMouseDown.Done);
}
if (Control.ModifierKeys == Keys.Control)
{
point = HitUtil.OrthoPointD(m_p1, point, 45);
}
m_p2 = point;
UpdateCtrlPts();
return(eDrawObjectMouseDown.Done);
}
