new-gui/node.go

86 lines
2.0 KiB
Go

package gui
import "git.wit.org/wit/gui/toolkit"
/*
generic function to create a new node on the binary tree
*/
func (n *Node) New(title string, t toolkit.WidgetType, custom func()) *Node {
var newN *Node
newN = addNode(title)
newN.WidgetType = t
newN.widget.Type = t
// newN.widget.Action = "New"
newN.Custom = custom
// TODO: This should not be defined for each widget. This has to be stupid
// or wait a second, is this where I send something to a channel?
newN.widget.Custom = func() {
log(debugChange, "Trying to find Window Close. widget.Type =", newN.widget.Type)
if (newN.widget.Type == toolkit.Window) {
log(debugChange, "Need to delete newN here")
n.Delete(newN)
}
if (newN.Custom == nil) {
log(debugChange, "newT.Custom() == nil. Not doing anything. SEND SOMETHING TO THE CHANNEL")
return
}
log(debugChange, "newT.Custom() START SEND SOMETHING TO THE CHANNEL node =", newN.Name)
// send something to the channel here????
newN.Custom()
log(debugChange, "newT.Custom() END SEND SOMETHING TO THE CHANNEL node =", newN.Name)
}
n.Append(newN)
newN.parent = n
return newN
}
/*
raw create function for a new node struct
*/
func addNode(title string) *Node {
n := new(Node)
n.Name = title
n.Text = title
n.id = Config.counter
n.widget.Id = n.id
log(debugNode, "addNode = widget setid =", n.id)
Config.counter += 1
return n
}
func (n *Node) Parent() *Node {
return n.parent
}
/*
func (n *Node) Window() *Node {
return n.parent
}
*/
func (n *Node) Append(child *Node) {
n.children = append(n.children, child)
if (debugNode) {
log(debugNode, "child node:")
child.Dump(debugDump)
log(debugNode, "parent node:")
n.Dump(debugDump)
}
}
func (n *Node) Delete(d *Node) {
for i, child := range n.children {
log(debugNode, "\t", i, child.id, child.Width, child.Height, child.Name)
if (child.id == d.id) {
log(debugNode, "\t\t Deleting this")
n.children = append(n.children[:i], n.children[i+1:]...)
return
}
}
log(debugError, "did not find node to delete", d.id, d.Width, d.Height, d.Name)
}