func (p *port) Connection(c bh.PortIf) bh.ConnectionIf {
_, ok, index := p.connected.Find(c.Node().Name(), c.Name())
if !ok {
log.Fatalf("port.bh.ConnectionIf error: port %v not in connected list of port %v\n", c, p)
}
return p.conn[index]
}
func (t *signalGraphType) AddNewObject(tree tr.TreeIf, cursor tr.Cursor, obj tr.TreeElementIf) (newCursor tr.Cursor, err error) {
switch obj.(type) {
case bh.NodeIf:
// TODO: Check if IO node and exists: copy position only and return
n := obj.(bh.NodeIf)
err = t.AddNode(n)
if err != nil {
err = fmt.Errorf("signalGraphType.AddNewObject error: %s", err)
nt := n.ItsType().(*nodeType)
if nt != nil {
ok, _ := nt.instances.Find(n)
if ok {
nt.instances.Remove(n)
}
}
return
}
newCursor = t.treeAddNewObject(tree, cursor, n)
parent := tree.Object(cursor)
switch parent.(type) {
case bh.SignalGraphIf:
case bh.ImplementationIf:
// propagate new node to all instances of embracing type
pCursor := tree.Parent(cursor)
nt := tree.Object(pCursor)
for _, nn := range nt.(bh.NodeTypeIf).Instances() {
nCursor := tree.Cursor(nn)
tCursor := tree.CursorAt(nCursor, parent)
tCursor.Position = cursor.Position
t.treeAddNewObject(tree, tCursor, n)
}
default:
log.Fatalf("signalGraphType.AddNewObject error: wrong parent type %T: %v\n", parent, parent)
}
case bh.ConnectionIf:
conn := obj.(bh.ConnectionIf)
var n bh.NodeIf
var p bh.PortIf
for _, n = range t.Nodes() {
if n.Name() == conn.From().Node().Name() {
nCursor := tree.CursorAt(cursor, n)
for _, p = range n.OutPorts() {
if conn.From().Name() == p.Name() {
pCursor := tree.CursorAt(nCursor, p)
return p.AddNewObject(tree, pCursor, obj)
}
}
}
}
default:
log.Fatalf("signalGraphType.AddNewObject error: wrong type %t: %v\n", obj, obj)
}
return
}
func (p *port) RemoveConnection(c bh.PortIf) {
_, ok, index := p.connected.Find(c.Node().Name(), c.Name())
if !ok {
log.Fatalf("port.bh.ConnectionIf error: port %v not in connected list of port %v\n", c, p)
}
p.connected.Remove(c)
for index++; index < len(p.conn); index++ {
p.conn[index-1] = p.conn[index]
}
p.conn = p.conn[:len(p.conn)-1]
}
func (p *port) RemoveObject(tree tr.TreeIf, cursor tr.Cursor) (removed []tr.IdWithObject) {
parent := tree.Parent(cursor)
if p != tree.Object(parent) {
log.Fatal("port.RemoveObject error: not removing child of mine.")
}
obj := tree.Object(cursor)
switch obj.(type) {
case bh.ConnectionIf:
conn := obj.(bh.ConnectionIf)
var thisPort, otherPort bh.PortIf
if p.Direction() == gr.InPort {
otherPort = conn.From()
thisPort = conn.To()
if p != thisPort {
log.Fatal("port.RemoveObject error: invalid connection ", conn)
}
} else {
otherPort = conn.To()
thisPort = conn.From()
if p != thisPort {
log.Fatal("port.RemoveObject error: invalid connection ", conn)
}
}
contextCursor := tree.Parent(tree.Parent(tree.Parent(cursor)))
removed = p.treeRemoveObject(tree, cursor, conn, otherPort)
context := tree.Object(contextCursor)
switch context.(type) {
case bh.SignalGraphIf:
case bh.ImplementationIf:
// propagate removed edge to all instances of embracing type
nt := tree.Object(tree.Parent(contextCursor))
for _, nn := range nt.(bh.NodeTypeIf).Instances() {
nCursor := tree.Cursor(nn)
tCursor := tree.CursorAt(nCursor, context)
pCursor := tree.CursorAt(tCursor, p)
cCursor := tree.CursorAt(pCursor, conn)
p.treeRemoveObject(tree, cCursor, conn, otherPort)
}
default:
log.Fatalf("port.RemoveObject error: wrong context type %T: %v\n", context, context)
}
p.RemoveConnection(otherPort)
otherPort.RemoveConnection(p)
default:
log.Fatalf("bh.PortIf.RemoveObject error: invalid type %T: %v\n", obj, obj)
}
return
}
// Remove object mirrored in all instance node type
func (t *nodeType) treeRemoveInstObject(tree tr.TreeIf, cursor tr.Cursor) (removed []tr.IdWithObject) {
parentId := tree.Parent(cursor)
if t != tree.Object(parentId) {
log.Fatal("nodeType.RemoveObject error: not removing child of mine.")
}
obj := tree.Object(cursor)
switch obj.(type) {
case bh.ImplementationIf:
for _, n := range t.Instances() {
nCursor := tree.Cursor(n)
tCursor := tree.CursorAt(nCursor, t)
iCursor := tree.CursorAt(tCursor, obj)
iCursor.Position = cursor.Position
tree.Remove(iCursor)
}
case bh.PortTypeIf:
nt := obj.(bh.PortTypeIf)
for _, n := range t.Instances() {
var p bh.PortIf
var list []bh.PortIf
nCursor := tree.Cursor(n)
if nt.Direction() == gr.InPort {
list = n.InPorts()
} else {
list = n.OutPorts()
}
for _, p = range list {
if p.Name() == nt.Name() {
break
}
}
_ = p.(*port)
pCursor := tree.CursorAt(nCursor, p)
prefix, index := tree.Remove(pCursor)
removed = append(removed, tr.IdWithObject{prefix, index, p})
tCursor := tree.CursorAt(nCursor, obj)
del := t.treeRemoveObject(tree, tCursor)
for _, d := range del {
removed = append(removed, d)
}
tree.Remove(tCursor)
}
default:
log.Fatalf("nodeType.RemoveObject error: invalid type %T\n", obj)
}
return
}
func (t *nodeType) treeInstObject(tree tr.TreeIf, cursor tr.Cursor, obj tr.TreeElementIf) (newCursor tr.Cursor) {
switch obj.(type) {
case bh.ImplementationIf:
impl := obj.(bh.ImplementationIf)
// update all instance nodes in the tree with new implementation
for _, n := range t.Instances() {
nCursor := tree.Cursor(n)
tCursor := tree.CursorAt(nCursor, t)
tCursor.Position = len(t.Implementation()) - 1
newICursor := tree.Insert(tCursor)
impl.AddToTree(tree, newICursor)
}
case bh.PortTypeIf:
pt := obj.(bh.PortTypeIf)
// update all instance nodes in the tree with new port
for _, n := range t.Instances() {
var p bh.PortIf
var ok bool
if pt.Direction() == gr.InPort {
p, ok, _ = n.(*node).inPort.Find(n.Name(), pt.Name())
} else {
p, ok, _ = n.(*node).outPort.Find(n.Name(), pt.Name())
}
if !ok {
log.Fatalf("nodeType.treeInstObject error: port %s not found.\n", pt.Name())
}
nCursor := tree.Cursor(n)
// Insert new port at the same position as in the type:
// Need to deal with implementations in type VS type in node
if cursor.Position >= 0 {
nCursor.Position = cursor.Position - len(t.Implementation()) + 1
}
newNCursor := tree.Insert(nCursor)
p.AddToTree(tree, newNCursor)
// Update mirrored type in node:
tCursor := tree.CursorAt(nCursor, t)
tCursor.Position = cursor.Position
t.treeNewObject(tree, tCursor, obj)
}
default:
log.Fatalf("nodeType.AddNewObject error: invalid type %T\n", obj)
}
return
}
// For connection only: lookup matching ports to connect.
func getMatchingPorts(fts *models.FilesTreeStore, object tr.TreeElementIf) (ret []bh.PortIf) {
var thisPort bh.PortIf
switch object.(type) {
case bh.PortIf:
thisPort = object.(bh.PortIf)
case bh.ConnectionIf:
log.Fatal("getMatchingPorts error: expecting Port, not Connection")
default:
log.Fatal("getMatchingPorts error: expecting Port")
}
thisNode := thisPort.Node()
graph := thisNode.Context()
for _, n := range graph.Nodes() {
var ports []bh.PortIf
if thisPort.Direction() == gr.InPort {
ports = n.OutPorts()
} else {
ports = n.InPorts()
}
for _, p := range ports {
if p.SignalType().TypeName() == thisPort.SignalType().TypeName() {
ret = append(ret, p)
}
}
}
return
}
func (l *portList) Remove(p bh.PortIf) {
var i int
for i = range l.ports {
if p.Node().Name() == l.ports[i].Node().Name() && p.Name() == l.ports[i].Name() {
break
}
}
if i >= len(l.ports) {
for _, v := range l.ports {
log.Printf("portList.RemovePort have bh.PortIf %v\n", v)
}
log.Fatalf("portList.RemovePort error: bh.PortIf %v not in this list\n", p)
}
for i++; i < len(l.ports); i++ {
l.ports[i-1] = l.ports[i]
}
l.ports = l.ports[:len(l.ports)-1]
}
func PortNew(box image.Rectangle, userObj bh.PortIf) *Port {
var config DrawConfig
if userObj.Direction() == gr.InPort {
config = DrawConfig{ColorInit(ColorOption(InputPort)),
ColorInit(ColorOption(HighlightInPort)),
ColorInit(ColorOption(SelectInPort)),
ColorInit(ColorOption(BoxFrame)),
Color{},
image.Point{}}
} else {
config = DrawConfig{ColorInit(ColorOption(OutputPort)),
ColorInit(ColorOption(HighlightOutPort)),
ColorInit(ColorOption(SelectOutPort)),
ColorInit(ColorOption(BoxFrame)),
Color{},
image.Point{}}
}
return &Port{SelectableBoxInit(box, config), userObj}
}
func (p *port) AddNewObject(tree tr.TreeIf, cursor tr.Cursor, obj tr.TreeElementIf) (newCursor tr.Cursor, err error) {
switch obj.(type) {
case bh.ConnectionIf:
conn := obj.(bh.ConnectionIf)
var thisPort, otherPort bh.PortIf
if p.Direction() == gr.InPort {
otherPort = conn.From()
thisPort = conn.To()
} else {
otherPort = conn.To()
thisPort = conn.From()
}
if p != thisPort {
log.Println("p =", p)
log.Println("thisPort =", thisPort)
log.Fatal("port.AddNewObject error: invalid connection ", conn)
}
sgt := thisPort.Node().Context()
if sgt != otherPort.Node().Context() {
log.Fatal("port.AddNewObject error: nodes have different context: ", conn)
}
contextCursor := tree.Parent(tree.Parent(cursor))
thisPort.AddConnection(conn)
newCursor = p.treeAddNewObject(tree, cursor, conn, otherPort)
context := tree.Object(contextCursor)
switch context.(type) {
case bh.SignalGraphIf:
case bh.ImplementationIf:
// propagate new edge to all instances of embracing type
nt := tree.Object(tree.Parent(contextCursor))
for _, nn := range nt.(bh.NodeTypeIf).Instances() {
nCursor := tree.Cursor(nn)
tCursor := tree.CursorAt(nCursor, context)
pCursor := tree.CursorAt(tCursor, p)
pCursor.Position = cursor.Position
p.treeAddNewObject(tree, pCursor, conn, otherPort)
}
default:
log.Fatalf("port.AddNewObject error: wrong context type %T: %v\n", context, context)
}
default:
log.Fatalf("port.AddNewObject error: invalid type %T: %v\n", obj, obj)
}
return
}
func portConnect(port1 bh.PortIf, c *connection) error {
p1 := port1.(*port)
var port2 bh.PortIf
var p2 *port
if c.from.(*port) == p1 {
port2 = c.to
} else if c.to.(*port) == p1 {
port2 = c.from
}
p2 = port2.(*port)
if port1.SignalType().TypeName() != port2.SignalType().TypeName() {
return fmt.Errorf("type mismatch")
}
if port1.Direction() == port2.Direction() {
return fmt.Errorf("direction mismatch")
}
p1.connected.Append(port2.(*port))
p1.conn = append(p1.conn, c)
p2.connected.Append(port1.(*port))
p2.conn = append(p2.conn, c)
return nil
}
func updateConnections(p bh.PortIf, fts *models.FilesTreeStore) {
nodeCursor := fts.Cursor(p.Node())
portCursor := fts.CursorAt(nodeCursor, p)
for _, c := range p.Connections() {
conn := p.Connection(c)
connCursor := fts.CursorAt(portCursor, conn)
otherNode := c.Node()
otherNodeCursor := fts.Cursor(otherNode)
otherPortCursor := fts.CursorAt(otherNodeCursor, c)
otherConnCursor := fts.CursorAt(otherPortCursor, conn)
connText := fmt.Sprintf("%s/%s -> %s/%s",
conn.From().Node().Name(), conn.From().Name(),
conn.To().Node().Name(), conn.To().Name())
fts.SetValueById(connCursor.Path, connText)
fts.SetValueById(otherConnCursor.Path, connText)
}
}
func (n *Node) SelectPort(port bh.PortIf) {
var index int
if port.Direction() == gr.InPort {
index = n.InPortIndex(port.Name())
} else {
index = n.OutPortIndex(port.Name())
if index >= 0 {
index += n.NumInPorts()
}
}
for i, p := range n.ports {
if i == index {
p.Select()
} else {
p.Deselect()
}
}
n.selectedPort = index
}
func CreateXmlOutPort(p bh.PortIf) (xmlp *backend.XmlOutPort) {
xmlp = backend.XmlOutPortNew(p.Name(), p.SignalType().TypeName())
xmlp.Entry = freesp.CreateXmlModePosition(p).Entry
return
}