gocui/widget.go

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package main
import (
"go.wit.com/log"
"go.wit.com/toolkits/tree"
"go.wit.com/widget"
)
func initWidget(n *tree.Node) *guiWidget {
var w *guiWidget
w = new(guiWidget)
// Set(w, "default")
w.frame = true
// set the name used by gocui to the id
w.cuiName = string(n.WidgetId)
w.node = n
w.WidgetType = n.WidgetType
w.labelN = n.State.Label
if w.labelN == "" {
w.labelN = n.GetProgName()
}
if n.WidgetType == widget.Root {
log.Log(INFO, "setupWidget() FOUND ROOT w.id =", n.WidgetId)
}
if n.WidgetType == widget.Grid {
w.widths = make(map[int]int) // how tall each row in the grid is
w.heights = make(map[int]int) // how wide each column in the grid is
}
p := n.Parent
if p == nil {
log.Log(ERROR, "parent == nil", w.String(), n.WidgetId, w.WidgetType)
return w
}
if p.TK == nil {
log.Log(ERROR, "parent.TK == nil", w.String(), n.WidgetId, w.WidgetType)
return w
}
// set the parent and append to parent children
var ptk *guiWidget
ptk = p.TK.(*guiWidget)
w.parent = ptk
ptk.children = append(ptk.children, w)
return w
}
func setupCtrlDownWidget() {
a := new(widget.Action)
a.ProgName = "ctrlDown"
a.WidgetType = widget.Dialog
a.WidgetId = -1
a.ParentId = 0
// n := addNode(a)
n := me.myTree.AddNode(a)
me.ctrlDown = n
}
func (w *guiWidget) deleteView() {
if w.v != nil {
w.v.Visible = false
return
}
// make sure the view isn't really there
me.baseGui.DeleteView(w.cuiName)
w.v = nil
}
func (w *guiWidget) IsCurrent() bool {
if w.node.WidgetType == widget.Tab {
return w.isCurrent
}
if w.node.WidgetType == widget.Window {
return w.isCurrent
}
if w.node.WidgetType == widget.Root {
return false
}
return w.parent.IsCurrent()
}
func (tk *guiWidget) String() string {
return tk.node.String()
}
func (tk *guiWidget) Visible() bool {
if tk == nil {
return false
}
if tk.v == nil {
return false
}
return tk.v.Visible
}
func (w *guiWidget) SetVisible(b bool) {
if w.v == nil {
return
}
w.v.Visible = b
}
func addDropdown() *tree.Node {
n := new(tree.Node)
n.WidgetType = widget.Flag
n.WidgetId = 2222
n.ParentId = 0
// store the internal toolkit information
tk := new(guiWidget)
tk.frame = true
tk.labelN = "DropBox text"
tk.node = n
// copy the data from the action message
tk.node.State.Label = "DropBox"
// set the name used by gocui to the id
tk.cuiName = "-1 dropbox"
tk.color = &colorFlag
// add this new widget on the binary tree
tk.parent = me.treeRoot.TK.(*guiWidget)
if tk.parent == nil {
panic("addDropdown() didn't get treeRoot guiWidget")
} else {
tk.parent.children = append(tk.parent.children, tk)
}
n.TK = tk
return n
}