I'm trying to make this clearer to understand

1 files changed, 198 insertions, 0 deletions

diff --git a/treeWidget.go b/treeWidget.go
new file mode 100644
index 0000000..d72f957
--- /dev/null
+++ b/treeWidget.go
@@ -0,0 +1,198 @@
+package main
+
+import (
+	"strconv"
+
+	"github.com/awesome-gocui/gocui"
+	"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)
+
+	w.node = n
+	w.cuiName = strconv.Itoa(w.node.WidgetId) + " TK"
+	w.WidgetType = n.WidgetType
+	w.labelN = n.State.Label
+	if w.labelN == "" {
+		// remove this debugging hack once things are stable and fixed
+		w.labelN = n.GetProgName()
+	}
+	w.frame = true
+	w.enable = n.State.Enable
+
+	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() {
+	// make sure the view isn't really there
+	log.Log(GOCUI, "deleteView()", w.cuiName, w.WidgetType, w.node.WidgetId)
+	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 {
+		log.Log(GOCUI, "IsCurrent() found current window", w.cuiName, w.String())
+		log.Log(GOCUI, "IsCurrent() window w.isCurrent =", w.isCurrent)
+		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
+	}
+	tk.v.Visible = true
+	return true
+}
+
+func (w *guiWidget) Show() {
+	// always should the dropdown widget
+	if w == me.dropdownV {
+		me.dropdownV.drawView()
+		return
+	}
+
+	// don't display fake widgets
+	if w.isFake {
+		return
+	}
+
+	// if this isn't in the binary tree
+	// it's some internal widget so always display those
+	if w.node == nil {
+		w.drawView()
+		return
+	}
+
+	// always show window titles
+	if w.node.WidgetType == widget.Window {
+		w.drawView()
+		return
+	}
+
+	if w.node.WidgetType == widget.Dropdown {
+		log.Log(NOW, "Show() dropdown", w.cuiName, w.String())
+		log.Log(NOW, "Show() dropdown n.Strings() =", w.node.Strings())
+	}
+	if w.node.WidgetType == widget.Combobox {
+		log.Log(NOW, "Show() dropdown", w.cuiName, w.String())
+		log.Log(NOW, "Show() dropdown n.Strings() =", w.node.Strings())
+	}
+
+	// if the widget is not in the current displayed windo
+	// then ignore it
+	log.Log(GOCUI, "Show() widget =", w.cuiName, w.String())
+	log.Log(GOCUI, "Show() w.IsCurrent() returned", w.IsCurrent())
+	if !w.IsCurrent() {
+		log.Log(GOCUI, "Show() NOT drawing", w.cuiName, w.String())
+		return
+	}
+	log.Log(GOCUI, "Show() drawing", w.cuiName, w.String())
+
+	// finally, check if the widget State is hidden or not
+	if w.node.Hidden() {
+		// don't display hidden widgets
+		return
+	}
+
+	// okay, if you made it this far, then display the widget
+	w.drawView()
+}
+
+func (tk *guiWidget) Hide() {
+	tk.deleteView()
+}
+
+func (tk *guiWidget) SetVisible(b bool) {
+	if b {
+		tk.Show()
+	} else {
+		tk.Hide()
+	}
+}
+
+func (tk *guiWidget) findWidgetByName(name string) *guiWidget {
+	if tk.cuiName == name {
+		return tk
+	}
+	for _, child := range tk.children {
+		found := child.findWidgetByName(name)
+		if found != nil {
+			return found
+		}
+	}
+	return nil
+}
+
+func (tk *guiWidget) findWidgetByView(v *gocui.View) *guiWidget {
+	if tk.v == v {
+		return tk
+	}
+	if tk.cuiName == v.Name() {
+		log.Log(NOW, "findWidget() error. names are mismatched or out of sync", tk.cuiName)
+		log.Log(NOW, "findWidget() or maybe the view has been deleted")
+		// return tk
+	}
+	for _, child := range tk.children {
+		found := child.findWidgetByView(v)
+		if found != nil {
+			return found
+		}
+	}
+	return nil
+}