// user moves the end of connection
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
int s = 0, a;
fixup_quadric_endpoint_movement(movepoint);
collapse_quadric_segments(ref s, out a);
check_current_connection();
}
static public bool select_pos_for_middle_point(GuiConnectionPoint p1, GuiConnectionPoint p2, out int x, out int y)
{
int x1 = p1.x, y1 = p1.y, x2 = p2.x, y2 = p2.y;
Geometry.Direction d1 = Geometry.Direction.Null;
Rectangle r1 = Rectangle.Empty, r2 = Rectangle.Empty;
if (p1.item is GuiItem)
{
d1 = (p1.item as GuiItem).direction(p1.ux);
r1 = (p1.item as GuiItem).AroundRect;
}
if (p2.item is GuiItem)
{
r2 = (p2.item as GuiItem).AroundRect;
}
// try two solutions (x1, y2) and (x2, y1)
bool sol1 = !Geometry.rect_inters_with_quadric_segment(r1, x1, y1, x1, y2) &&
!Geometry.rect_inters_with_quadric_segment(r2, x1, y1, x1, y2) &&
!Geometry.rect_inters_with_quadric_segment(r1, x2, y2, x1, y2) &&
!Geometry.rect_inters_with_quadric_segment(r2, x2, y2, x1, y2);
bool sol2 = !Geometry.rect_inters_with_quadric_segment(r1, x1, y1, x2, y1) &&
!Geometry.rect_inters_with_quadric_segment(r2, x1, y1, x2, y1) &&
!Geometry.rect_inters_with_quadric_segment(r1, x2, y2, x2, y1) &&
!Geometry.rect_inters_with_quadric_segment(r2, x2, y2, x2, y1);
if (p2.item == null && r1.Contains(x2, y2))
{
sol1 = true;
}
if (sol1 && sol2)
{
if (d1 == Geometry.Direction.South || d1 == Geometry.Direction.North)
{
sol2 = false; // select sol1
}
else
{
sol1 = false;
}
}
if (sol1 || !sol2 && (d1 == Geometry.Direction.South && y2 - y1 > 0 || d1 == Geometry.Direction.North && y2 - y1 < 0 || d1 == Geometry.Direction.West && x2 - x1 > 0 || d1 == Geometry.Direction.East && x2 - x1 < 0))
{
x = x1;
y = y2;
}
else
{
x = x2;
y = y1;
}
return(sol1 || sol2);
}
public GuiConnection(GuiConnectionPoint p1, GuiConnectionPoint p2, UmlRelationType t, StaticView par, GuiConnectionStyle style)
{
first = p1;
second = p2;
type = t;
parent = par;
this.style = style;
nav = GuiConnectionNavigation.None;
p1.parent = p2.parent = par;
p1.root = p2.root = this;
ipoints.Add(p1);
ipoints.Add(p2);
}
// user moves conn_point
private void fixup_quadric_endpoint_movement(GuiConnectionPoint conn_point)
{
GuiPoint neighbour;
int x, y;
if (conn.ipoints.Count == 2)
{
int dx = conn.first.x - conn.second.x, dy = conn.first.y - conn.second.y;
GuiIntermPoint pt = null;
if (dx != 0 && dy != 0)
{
pt = conn.insert_point(0);
conn.add_child(pt, null);
GuiPathFinder.select_pos_for_middle_point(conn.first, conn.second, out x, out y);
pt.x = x;
pt.y = y;
}
}
else if (conn.ipoints.Count == 3)
{
GuiIntermPoint pt = conn.ipoints[1] as GuiIntermPoint;
GuiPathFinder.select_pos_for_middle_point(conn.first, conn.second, out x, out y);
pt.x = x;
pt.y = y;
}
else if (conn.ipoints.Count >= 3)
{
bool vertical;
if (conn_point == conn.first)
{
neighbour = conn.ipoints[1] as GuiPoint;
vertical = neighbour.x - (conn.ipoints[2] as GuiPoint).x == 0;
}
else
{
neighbour = conn.ipoints[conn.ipoints.Count - 2] as GuiPoint;
vertical = neighbour.x - (conn.ipoints[conn.ipoints.Count - 3] as GuiPoint).x == 0;
}
vertical = !vertical; // we have to invert the value to obtain the direction of the segment being moved
if (vertical)
{
neighbour.x = conn_point.x;
}
else
{
neighbour.y = conn_point.y;
}
}
}
public void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
if (!created)
{
return;
}
Style.EndPointPositionChanging(movepoint);
foreach (GuiConnectionPoint p in cpoints)
{
p.UpdatePosition(true);
}
notify_children();
}
public override void PostLoad()
{
base.PostLoad();
first = find_child("LeftPoint") as GuiConnectionPoint;
second = find_child("RightPoint") as GuiConnectionPoint;
first.UpdatePosition(true);
second.UpdatePosition(true);
first.role = find_child("Role 1") as GuiBoundString;
second.role = find_child("Role 2") as GuiBoundString;
conn_name = find_child("Name") as GuiBoundString;
conn_stereo = find_child("Stereotype") as GuiBoundStereotype;
ipoints.Add(first);
for (int i = 1; i < loadtime_iterm_count - 1; i++)
{
ipoints.Add(find_child("Point #" + i));
}
ipoints.Add(second);
created = true;
notify_children();
}
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
SetupEndPointsPositions();
}
public void remove_connection_point(GuiConnectionPoint p)
{
cpoints.Remove(p);
}
public void add_connection_point(GuiConnectionPoint p)
{
cpoints.Add(p);
}
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
}
// object to which the movepoint was assigned has changed its location abstract public void EndPointPositionChanging(GuiConnectionPoint movepoint);
// user moves the end of connection
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
int s = 0, a;
fixup_quadric_endpoint_movement( movepoint );
collapse_quadric_segments( ref s, out a );
check_current_connection();
}
public static Point[] polyline_quadric_DummyWay(GuiConnectionPoint p1, GuiConnectionPoint p2, ArrayList active)
{
int x1 = p1.x, y1 = p1.y, x2 = p2.x, y2 = p2.y;
Geometry.Direction d1 = Geometry.Direction.Null, d2 = Geometry.Direction.Null;
Rectangle r1 = Rectangle.Empty, r2 = Rectangle.Empty;
if (p1.item is GuiItem)
{
d1 = (p1.item as GuiItem).direction(p1.ux);
r1 = (p1.item as GuiItem).AroundRect;
}
if (p2.item is GuiItem)
{
d2 = (p2.item as GuiItem).direction(p2.ux);
r2 = (p2.item as GuiItem).AroundRect;
}
if ((x1 == x2 || y1 == y2) && !Geometry.rect_inters_with_quadric_segment(r1, x1, y1, x2, y2) &&
!Geometry.rect_inters_with_quadric_segment(r2, x1, y1, x2, y2))
{
return new Point[] {}
}
;
// try two solutions (x1, y2) and (x2, y1)
int xm, ym;
if (select_pos_for_middle_point(p1, p2, out xm, out ym))
{
return new Point[] { new Point(xm, ym) }
}
;
// try solutions of 3 segments
bool sol1, sol2;
Point[] ans1 = new Point[] { new Point(x1, y1), new Point(x2, y2) },
ans2 = new Point[] { new Point(x1, y1), new Point(x2, y2) };
sol2 = sol1 = false;
if ((d1 == Geometry.Direction.East && x2 < x1) ||
(d1 == Geometry.Direction.West && x2 > x1) ||
(d1 == Geometry.Direction.South && y2 < y1) ||
(d1 == Geometry.Direction.North && y2 > y1))
{
if (d1 == Geometry.Direction.North || d1 == Geometry.Direction.South)
{
if (d2 == Geometry.Direction.North || d2 == Geometry.Direction.South)
{
if (x2 > x1)
{
ans1[0].X = ans1[1].X = (r2.Left > r1.Right) ? (r2.Left + r1.Right) / 2 : Math.Max(r1.Right, r2.Right);
}
else
{
ans1[0].X = ans1[1].X = (r2.Right < r1.Left) ? (r1.Left + r2.Right) / 2 : Math.Min(r1.Left, r2.Left);
}
}
else if (d2 == Geometry.Direction.West)
{
ans1[0].X = ans1[1].X = r1.Left;
}
else
{
ans1[0].X = ans1[1].X = r1.Right;
}
}
else
{
if (d2 == Geometry.Direction.West || d2 == Geometry.Direction.East)
{
if (y2 > y1)
{
ans1[0].Y = ans1[1].Y = Math.Max(r1.Bottom, r2.Bottom);
}
else
{
ans1[0].Y = ans1[1].Y = Math.Min(r1.Top, r2.Top);
}
}
else if (d2 == Geometry.Direction.North)
{
ans1[0].Y = ans1[1].Y = r1.Top;
}
else
{
ans1[0].Y = ans1[1].Y = r1.Bottom;
}
}
sol1 = true;
}
if ((d2 == Geometry.Direction.East && x1 < x2) ||
(d2 == Geometry.Direction.West && x1 > x2) ||
(d2 == Geometry.Direction.South && y1 < y2) ||
(d2 == Geometry.Direction.North && y1 > y2))
{
if (d2 == Geometry.Direction.North || d2 == Geometry.Direction.South)
{
if (d1 == Geometry.Direction.North || d1 == Geometry.Direction.South)
{
if (x1 > x2)
{
ans2[0].X = ans2[1].X = (r1.Left > r2.Right) ? (r1.Left + r2.Right) / 2 : Math.Max(r1.Right, r2.Right);
}
else
{
ans2[0].X = ans2[1].X = (r1.Right < r2.Left) ? (r2.Left + r1.Right) / 2 : Math.Min(r1.Left, r2.Left);
}
}
else if (d1 == Geometry.Direction.West)
{
ans2[0].X = ans2[1].X = r2.Left;
}
else
{
ans2[0].X = ans2[1].X = r2.Right;
}
}
else
{
if (d1 == Geometry.Direction.West || d1 == Geometry.Direction.East)
{
if (y1 > y2)
{
ans2[0].Y = ans2[1].Y = Math.Max(r1.Bottom, r2.Bottom);
}
else
{
ans2[0].Y = ans2[1].Y = Math.Min(r1.Top, r2.Top);
}
}
else if (d1 == Geometry.Direction.North)
{
ans2[0].Y = ans2[1].Y = r2.Top;
}
else
{
ans2[0].Y = ans2[1].Y = r2.Bottom;
}
}
sol2 = true;
}
// try to select best one
if (sol1 && sol2)
{
if (!Geometry.rect_inters_with_quadric_segment(r1, x1, y1, ans1[0].X, ans1[0].Y) &&
!Geometry.rect_inters_with_quadric_segment(r2, x1, y1, ans1[0].X, ans1[0].Y) &&
!Geometry.rect_inters_with_quadric_segment(r1, x2, y2, ans1[1].X, ans1[1].Y) &&
!Geometry.rect_inters_with_quadric_segment(r2, x2, y2, ans1[1].X, ans1[1].Y) &&
!Geometry.rect_inters_with_quadric_segment(r1, ans1[0].X, ans1[0].Y, ans1[1].X, ans1[1].Y) &&
!Geometry.rect_inters_with_quadric_segment(r2, ans1[0].X, ans1[0].Y, ans1[1].X, ans1[1].Y))
{
sol2 = false;
}
else
{
sol1 = false;
}
}
return(sol1 ? ans1 : ans2);
}
// user moves conn_point
private void fixup_quadric_endpoint_movement( GuiConnectionPoint conn_point )
{
GuiPoint neighbour;
int x, y;
if( conn.ipoints.Count == 2 ) {
int dx = conn.first.x - conn.second.x, dy = conn.first.y - conn.second.y;
GuiIntermPoint pt = null;
if( dx != 0 && dy != 0 ) {
pt = conn.insert_point( 0 );
conn.add_child( pt, null );
GuiPathFinder.select_pos_for_middle_point( conn.first, conn.second, out x, out y );
pt.x = x;
pt.y = y;
}
} else if( conn.ipoints.Count == 3 ) {
GuiIntermPoint pt = conn.ipoints[1] as GuiIntermPoint;
GuiPathFinder.select_pos_for_middle_point( conn.first, conn.second, out x, out y );
pt.x = x;
pt.y = y;
} else if( conn.ipoints.Count >= 3 ) {
bool vertical;
if( conn_point == conn.first ) {
neighbour = conn.ipoints[1] as GuiPoint;
vertical = neighbour.x - (conn.ipoints[2] as GuiPoint).x == 0;
} else {
neighbour = conn.ipoints[conn.ipoints.Count - 2] as GuiPoint;
vertical = neighbour.x - (conn.ipoints[conn.ipoints.Count - 3] as GuiPoint).x == 0;
}
vertical = !vertical; // we have to invert the value to obtain the direction of the segment being moved
if( vertical ) {
neighbour.x = conn_point.x;
} else {
neighbour.y = conn_point.y;
}
}
}
public static bool select_pos_for_middle_point( GuiConnectionPoint p1, GuiConnectionPoint p2, out int x, out int y )
{
int x1 = p1.x, y1 = p1.y, x2 = p2.x, y2 = p2.y;
Geometry.Direction d1 = Geometry.Direction.Null;
Rectangle r1 = Rectangle.Empty, r2 = Rectangle.Empty;
if( p1.item is GuiItem ) {
d1 = (p1.item as GuiItem).direction(p1.ux);
r1 = (p1.item as GuiItem).AroundRect;
}
if( p2.item is GuiItem ) {
r2 = (p2.item as GuiItem).AroundRect;
}
// try two solutions (x1, y2) and (x2, y1)
bool sol1 = !Geometry.rect_inters_with_quadric_segment( r1, x1, y1, x1, y2 ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x1, y1, x1, y2 ) &&
!Geometry.rect_inters_with_quadric_segment( r1, x2, y2, x1, y2 ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x2, y2, x1, y2 );
bool sol2 = !Geometry.rect_inters_with_quadric_segment( r1, x1, y1, x2, y1 ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x1, y1, x2, y1 ) &&
!Geometry.rect_inters_with_quadric_segment( r1, x2, y2, x2, y1 ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x2, y2, x2, y1 );
if( p2.item == null && r1.Contains( x2, y2 ) )
sol1 = true;
if( sol1 && sol2 ) {
if( d1 == Geometry.Direction.South || d1 == Geometry.Direction.North )
sol2 = false; // select sol1
else
sol1 = false;
}
if( sol1 || !sol2 && ( d1 == Geometry.Direction.South && y2-y1 > 0 || d1 == Geometry.Direction.North && y2-y1 < 0 || d1 == Geometry.Direction.West && x2-x1 > 0 || d1 == Geometry.Direction.East && x2-x1 < 0 ) ) {
x = x1;
y = y2;
} else {
x = x2;
y = y1;
}
return sol1 || sol2;
}
public static Point[] polyline_quadric_DummyWay( GuiConnectionPoint p1, GuiConnectionPoint p2, ArrayList active )
{
int x1 = p1.x, y1 = p1.y, x2 = p2.x, y2 = p2.y;
Geometry.Direction d1 = Geometry.Direction.Null, d2 = Geometry.Direction.Null;
Rectangle r1 = Rectangle.Empty, r2 = Rectangle.Empty;
if( p1.item is GuiItem ) {
d1 = (p1.item as GuiItem).direction(p1.ux);
r1 = (p1.item as GuiItem).AroundRect;
}
if( p2.item is GuiItem ) {
d2 = (p2.item as GuiItem).direction(p2.ux);
r2 = (p2.item as GuiItem).AroundRect;
}
if( (x1 == x2 || y1 == y2) && !Geometry.rect_inters_with_quadric_segment( r1, x1, y1, x2, y2 ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x1, y1, x2, y2 ) )
return new Point[] {};
// try two solutions (x1, y2) and (x2, y1)
int xm, ym;
if( select_pos_for_middle_point( p1, p2, out xm, out ym ) )
return new Point[] { new Point(xm, ym) };
// try solutions of 3 segments
bool sol1, sol2;
Point[] ans1 = new Point[] { new Point(x1,y1), new Point(x2,y2) },
ans2 = new Point[] { new Point(x1,y1), new Point(x2,y2) };
sol2 = sol1 = false;
if( (d1 == Geometry.Direction.East && x2 < x1 ) ||
(d1 == Geometry.Direction.West && x2 > x1 ) ||
(d1 == Geometry.Direction.South && y2 < y1 ) ||
(d1 == Geometry.Direction.North && y2 > y1 ) ) {
if( d1 == Geometry.Direction.North || d1 == Geometry.Direction.South ) {
if( d2 == Geometry.Direction.North || d2 == Geometry.Direction.South ) {
if( x2 > x1 ) {
ans1[0].X = ans1[1].X = (r2.Left > r1.Right) ? (r2.Left+r1.Right)/2 : Math.Max( r1.Right, r2.Right );
} else {
ans1[0].X = ans1[1].X = (r2.Right < r1.Left) ? (r1.Left+r2.Right)/2 : Math.Min( r1.Left, r2.Left );
}
} else if( d2 == Geometry.Direction.West ) {
ans1[0].X = ans1[1].X = r1.Left;
} else {
ans1[0].X = ans1[1].X = r1.Right;
}
} else {
if( d2 == Geometry.Direction.West || d2 == Geometry.Direction.East ) {
if( y2 > y1 ) {
ans1[0].Y = ans1[1].Y = Math.Max( r1.Bottom, r2.Bottom );
} else {
ans1[0].Y = ans1[1].Y = Math.Min( r1.Top, r2.Top );
}
} else if( d2 == Geometry.Direction.North ) {
ans1[0].Y = ans1[1].Y = r1.Top;
} else {
ans1[0].Y = ans1[1].Y = r1.Bottom;
}
}
sol1 = true;
}
if((d2 == Geometry.Direction.East && x1 < x2 ) ||
(d2 == Geometry.Direction.West && x1 > x2 ) ||
(d2 == Geometry.Direction.South && y1 < y2 ) ||
(d2 == Geometry.Direction.North && y1 > y2 ) ) {
if( d2 == Geometry.Direction.North || d2 == Geometry.Direction.South ) {
if( d1 == Geometry.Direction.North || d1 == Geometry.Direction.South ) {
if( x1 > x2 ) {
ans2[0].X = ans2[1].X = (r1.Left > r2.Right) ? (r1.Left+r2.Right)/2 : Math.Max( r1.Right, r2.Right );
} else {
ans2[0].X = ans2[1].X = (r1.Right < r2.Left) ? (r2.Left+r1.Right)/2 : Math.Min( r1.Left, r2.Left );
}
} else if( d1 == Geometry.Direction.West ) {
ans2[0].X = ans2[1].X = r2.Left;
} else {
ans2[0].X = ans2[1].X = r2.Right;
}
} else {
if( d1 == Geometry.Direction.West || d1 == Geometry.Direction.East ) {
if( y1 > y2 ) {
ans2[0].Y = ans2[1].Y = Math.Max( r1.Bottom, r2.Bottom );
} else {
ans2[0].Y = ans2[1].Y = Math.Min( r1.Top, r2.Top );
}
} else if( d1 == Geometry.Direction.North ) {
ans2[0].Y = ans2[1].Y = r2.Top;
} else {
ans2[0].Y = ans2[1].Y = r2.Bottom;
}
}
sol2 = true;
}
// try to select best one
if( sol1 && sol2 ) {
if( !Geometry.rect_inters_with_quadric_segment( r1, x1, y1, ans1[0].X, ans1[0].Y ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x1, y1, ans1[0].X, ans1[0].Y ) &&
!Geometry.rect_inters_with_quadric_segment( r1, x2, y2, ans1[1].X, ans1[1].Y ) &&
!Geometry.rect_inters_with_quadric_segment( r2, x2, y2, ans1[1].X, ans1[1].Y ) &&
!Geometry.rect_inters_with_quadric_segment( r1, ans1[0].X, ans1[0].Y, ans1[1].X, ans1[1].Y ) &&
!Geometry.rect_inters_with_quadric_segment( r2, ans1[0].X, ans1[0].Y, ans1[1].X, ans1[1].Y ) )
sol2 = false;
else
sol1 = false;
}
return sol1 ? ans1 : ans2;
}
public void add_connection_point( GuiConnectionPoint p )
{
cpoints.Add( p );
}
public void remove_connection_point( GuiConnectionPoint p )
{
cpoints.Remove( p );
}
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
}
public override void EndPointPositionChanging(GuiConnectionPoint movepoint)
{
SetupEndPointsPositions();
}