public bool GetIsConstrained(Sprite sp, ConstrainArea area)
{
if (area.ConstrainRectInsteadOfPoint)
{
//when the surrounding rect must be inside the rect
ERectangleF rctIntersect = area.Snap.Copy();
rctIntersect.Intersect(sp.Rect);
if (rctIntersect.Equals(sp.Rect))
{
//the surrounding rect is totally inside the snap rect
if (!(sp.Rect.Width > area.Constraint.Width || sp.Rect.Height > area.Constraint.Height))
{
return(true); //it's small enough to fit inside constraint
}
}
}
else
{
//when the loc must be inside the rect
if (area.Snap == null)
{
return(true); //no snap area defined; it's always snapped
}
return(area.Snap.Contains(sp.Loc));
}
return(false);
}
public void AddArea(ERectangleF rctConstraint, ERectangleF rctSnap, bool bConstrainRectInsteadOfPoint, object tag)
{
ConstrainArea area = new ConstrainArea();
area.Constraint = rctConstraint;
area.Snap = rctSnap;
area.ConstrainRectInsteadOfPoint = bConstrainRectInsteadOfPoint;
area.Tag = tag;
this.AddArea(area);
}
public void AddArea(ERectangleF rctConstraint, ERectangleF rctSnap, bool bConstrainRectInsteadOfPoint, object tag)
{
ConstrainArea area = new ConstrainArea();
area.Constraint = rctConstraint;
area.Snap = rctSnap;
area.ConstrainRectInsteadOfPoint = bConstrainRectInsteadOfPoint;
area.Tag = tag;
this.AddArea(area);
}
public void Constrain(Sprite sp)
{
//on constrain me, a_oOptionalMouse
ConstrainArea wasConstrainedTo = this.m_currentConstrainArea;
//TODO: do I have to convert area to a class instead of a struct?
// this.m_currentConstrainArea = null;
for (int nAreaNum = 0; nAreaNum < this.m_areas.Count; nAreaNum++)
{
ConstrainArea area = (ConstrainArea)this.m_areas[nAreaNum];
if (area.Constraint!=null) //if (ilk(m_rctConstraintArea) = #Rect) then
{
if (this.GetIsConstrained(sp, area))
{
this.m_currentConstrainArea = area;
EPointF pntMove = new EPointF();
EPointF pntLoc = sp.Loc;
ERectangleF rct = sp.Rect;
if (area.ConstrainRectInsteadOfPoint)
{
//when the surrounding rect must be inside the rect
//move it so it's inside the constraintArea
if (rct.Left < area.Constraint.Left)
pntMove.X = area.Constraint.Left-rct.Left;
else if (rct.Right > area.Constraint.Right)
pntMove.X = area.Constraint.Right-rct.Right;
if (rct.Top < area.Constraint.Top)
pntMove.Y = area.Constraint.Top-rct.Top;
else if (rct.Bottom < area.Constraint.Bottom)
pntMove.Y = area.Constraint.Bottom-rct.Bottom;
}
else
{
//move it so the loc is inside the constraintArea
if (pntLoc.X < area.Constraint.Left)
pntMove.X = area.Constraint.Left-pntLoc.X;
else if (pntLoc.X > area.Constraint.Right)
pntMove.X = area.Constraint.Right-pntLoc.X;
if (pntLoc.Y < area.Constraint.Top)
pntMove.Y = area.Constraint.Top-pntLoc.Y;
else if (pntLoc.Y > area.Constraint.Bottom)
pntMove.Y = area.Constraint.Bottom-pntLoc.Y;
}
//if (objectP(a_oOptionalMouse)) then a_oOptionalMouse.m_pntCurrentMouseLoc = a_oOptionalMouse.m_pntCurrentMouseLoc+pntMove
sp.Loc = pntLoc + pntMove;
break;
}
}
}
// if (wasConstrainedTo != null && wasConstrainedTo != this.m_currentConstrainArea)
// {
// if (this.Leave!=null)
// this.Leave(this, wasConstrainedTo);
// }
// if (this.m_currentConstrainArea != null && wasConstrainedTo != this.m_currentConstrainArea)
// {
// if (this.Enter!=null)
// this.Enter(this, this.m_currentConstrainArea);
// }
// else if (this.m_currentConstrainArea != null && wasConstrainedTo == this.m_currentConstrainArea)
// {
// if (this.StillInside!=null)
// this.StillInside(this, this.m_currentConstrainArea);
// }
}
public void AddArea(ConstrainArea area)
{
this.m_areas.Add(area);
}
public bool GetIsConstrained(Sprite sp, ConstrainArea area)
{
if (area.ConstrainRectInsteadOfPoint)
{
//when the surrounding rect must be inside the rect
ERectangleF rctIntersect = area.Snap.Copy();
rctIntersect.Intersect(sp.Rect);
if (rctIntersect.Equals(sp.Rect))
{
//the surrounding rect is totally inside the snap rect
if (!(sp.Rect.Width > area.Constraint.Width || sp.Rect.Height > area.Constraint.Height))
return true; //it's small enough to fit inside constraint
}
}
else
{
//when the loc must be inside the rect
if (area.Snap==null)
return true; //no snap area defined; it's always snapped
return area.Snap.Contains(sp.Loc);
}
return false;
}
public void Constrain(Sprite sp)
{
//on constrain me, a_oOptionalMouse
ConstrainArea wasConstrainedTo = this.m_currentConstrainArea;
//TODO: do I have to convert area to a class instead of a struct?
// this.m_currentConstrainArea = null;
for (int nAreaNum = 0; nAreaNum < this.m_areas.Count; nAreaNum++)
{
ConstrainArea area = (ConstrainArea)this.m_areas[nAreaNum];
if (area.Constraint != null) //if (ilk(m_rctConstraintArea) = #Rect) then
{
if (this.GetIsConstrained(sp, area))
{
this.m_currentConstrainArea = area;
EPointF pntMove = new EPointF();
EPointF pntLoc = sp.Loc;
ERectangleF rct = sp.Rect;
if (area.ConstrainRectInsteadOfPoint)
{
//when the surrounding rect must be inside the rect
//move it so it's inside the constraintArea
if (rct.Left < area.Constraint.Left)
{
pntMove.X = area.Constraint.Left - rct.Left;
}
else if (rct.Right > area.Constraint.Right)
{
pntMove.X = area.Constraint.Right - rct.Right;
}
if (rct.Top < area.Constraint.Top)
{
pntMove.Y = area.Constraint.Top - rct.Top;
}
else if (rct.Bottom < area.Constraint.Bottom)
{
pntMove.Y = area.Constraint.Bottom - rct.Bottom;
}
}
else
{
//move it so the loc is inside the constraintArea
if (pntLoc.X < area.Constraint.Left)
{
pntMove.X = area.Constraint.Left - pntLoc.X;
}
else if (pntLoc.X > area.Constraint.Right)
{
pntMove.X = area.Constraint.Right - pntLoc.X;
}
if (pntLoc.Y < area.Constraint.Top)
{
pntMove.Y = area.Constraint.Top - pntLoc.Y;
}
else if (pntLoc.Y > area.Constraint.Bottom)
{
pntMove.Y = area.Constraint.Bottom - pntLoc.Y;
}
}
//if (objectP(a_oOptionalMouse)) then a_oOptionalMouse.m_pntCurrentMouseLoc = a_oOptionalMouse.m_pntCurrentMouseLoc+pntMove
sp.Loc = pntLoc + pntMove;
break;
}
}
}
// if (wasConstrainedTo != null && wasConstrainedTo != this.m_currentConstrainArea)
// {
// if (this.Leave!=null)
// this.Leave(this, wasConstrainedTo);
// }
// if (this.m_currentConstrainArea != null && wasConstrainedTo != this.m_currentConstrainArea)
// {
// if (this.Enter!=null)
// this.Enter(this, this.m_currentConstrainArea);
// }
// else if (this.m_currentConstrainArea != null && wasConstrainedTo == this.m_currentConstrainArea)
// {
// if (this.StillInside!=null)
// this.StillInside(this, this.m_currentConstrainArea);
// }
}
public void AddArea(ConstrainArea area)
{
this.m_areas.Add(area);
}