andlabs/action.go

package main

import (
	"errors"

	"go.wit.com/log"
	"go.wit.com/toolkits/tree"
	"go.wit.com/widget"
)

// this will check to make sure that the node
// is valid for making a New TK andlabs widget
// Basically, it makes sure there is a parent ID
// and that there already a widget created
func notNew(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "notNew() n = nil")
		return true
	}
	if n.TK != nil {
		log.Log(ERROR, "notNew() n.TK = nil", n.WidgetId, n.GetProgName())
		return true
	}
	if n.Parent == nil {
		log.Log(ERROR, "notNew() n.Parent = nil", n.WidgetId, n.GetProgName())
		return true
	}
	if n.Parent.TK == nil {
		if n.Parent.WidgetId == 0 {
			// this is normal if the widget type is a window
			if n.WidgetType == widget.Window {
				return true
			}
		}
		log.Log(ERROR, "notNew() n.Parent.TK = nil", n.WidgetId, n.GetProgName())
		log.Log(ERROR, "notNew() n.Parent.TK = nil", n.Parent.WidgetId, n.Parent.GetProgName())
		return true
	}
	// this means you can add a new widgets
	return false
}

func tkbad(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "tkbad() n = nil")
		return true
	}
	if n.TK == nil {
		log.Log(ERROR, "tkbad() n.TK = nil", n.WidgetId, n.GetProgName())
		return true
	}
	return false
}

// this makes sure widget and it's parent exists
func ready(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "ready() n = nil")
		return false
	}
	if n.TK == nil {
		log.Log(ERROR, "ready() n.TK = nil", n.WidgetId, n.GetProgName())
		return false
	}
	if n.Parent == nil {
		log.Log(ERROR, "ready() n.Parent = nil", n.WidgetId, n.GetProgName())
		return false
	}
	if n.Parent.TK == nil {
		if n.Parent.WidgetId == 0 {
			// this is normal if the widget type is a window
			if n.WidgetType == widget.Window {
				return false
			}
		}
		log.Log(ERROR, "ready() n.Parent.TK = nil", n.WidgetId, n.GetProgName())
		log.Log(ERROR, "ready() n.Parent.TK = nil", n.Parent.WidgetId, n.Parent.GetProgName())
		return false
	}
	return true
}

func show(n *tree.Node, b bool) {
	if tkbad(n) {
		return
	}
	var tk *guiWidget
	tk = n.TK.(*guiWidget)
	// tk = getTK(n)

	if tk == nil {
		return
	}
	if tk.uiControl == nil {
		return
	}
	if b {
		tk.uiControl.Show()
	} else {
		tk.uiControl.Hide()
	}
}

func enable(n *tree.Node, b bool) {
	var tk *guiWidget
	tk = n.TK.(*guiWidget)
	if n == nil {
		panic("WHAT? enable was passed nil. How does this even happen?")
	}
	if tk == nil {
		return
	}
	if tk.uiControl == nil {
		return
	}
	if b {
		tk.uiControl.Enable()
	} else {
		tk.uiControl.Disable()
	}
}

func pad(n *tree.Node, b bool) {
	if tkbad(n) {
		return
	}
	log.Log(ANDLABS, "pad() on WidgetId =", n.WidgetId)

	t := n.TK.(*guiWidget)
	if t == nil {
		log.Log(ERROR, "pad() toolkit struct == nil. for", n.WidgetId)
		return
	}

	switch n.WidgetType {
	case widget.Window:
		t.uiWindow.SetMargined(b)
		t.uiWindow.SetBorderless(b)
	case widget.Tab:
		tabSetMargined(t.uiTab, b)
	case widget.Group:
		t.uiGroup.SetMargined(b)
	case widget.Grid:
		t.uiGrid.SetPadded(b)
	case widget.Box:
		t.uiBox.SetPadded(b)
	default:
		log.Log(ERROR, "TODO: implement pad() for", n.WidgetType, n.GetProgName())
	}
}

func widgetDelete(n *tree.Node) {
	log.Log(ANDLABS, "widgetDelete()", n.WidgetId, n.WidgetType)
	var tk *guiWidget
	tk = n.TK.(*guiWidget)

	if n.WidgetType == widget.Window {
		log.Log(ANDLABS, "DESTROY uiWindow here")
		log.Log(ANDLABS, "DESTROY NEED TO REMOVE n from parent.Children")
		if tk.uiWindow != nil {
			tk.uiWindow.Destroy()
			tk.uiWindow = nil
		}
		n.DeleteNode()
	} else {
		log.Log(ANDLABS, "DESTROY can't destroy TODO:", n.WidgetId, n.WidgetType)
	}
}

func processAction(a *widget.Action) {
	log.Log(ANDLABS, "processAction() START a.ActionType =", a.ActionType, "a.Value", a.Value)

	if a.ActionType == widget.ToolkitInit {
		Init()
		return
	}
	switch a.WidgetType {
	case widget.Root:
		if me.treeRoot == nil {
			log.Log(INFO, "processAction() found the treeRoot")
			me.treeRoot = me.myTree.AddNode(a)
		} else {
			log.Log(ERROR, "processAction() Something terrible has happened")
			log.Log(ERROR, "processAction() treeNode was sent an action", a.ActionType, a)
		}
		return
	}

	log.Log(ANDLABS, "andlabs processAction() START a.WidgetId =", a.WidgetId, "a.ParentId =", a.ParentId, a.ActionType)
	switch a.WidgetType {
	case widget.Flag:
		log.Log(ERROR, "processAction() RE-IMPLEMENT LOG FLAGS")
		return
	}

	if me.treeRoot == nil {
		panic("me.treeRoot == nil")
	}

	if a.ActionType == widget.Add {
		n := add(a)
		show(n, ! a.State.Hidden)
		// pad(n, n.State.Pad)
		// expand(n, a.State.Expand)
		return
	}

	n := me.treeRoot.FindWidgetId(a.WidgetId)
	if n == nil {
		if a.ActionType == widget.Delete {
			// this is normal. the widget is aleady deleted
			return
		}
		if a.WidgetType == widget.Window {
			// this could happen maybe someday
			log.Log(ANDLABS, "processAction() trying on nonexistant window", a.WidgetId, a.ActionType)
			return
		}
		log.Error(errors.New("andlabs processAction() ERROR findWidgetId found nil"), a.ActionType, a.WidgetType)
		log.Log(WARN, "processAction() ERROR findWidgetId found nil for id =", a.WidgetId)
		log.Log(WARN, "processAction() ERROR findWidgetId found nil", a.ActionType, a.WidgetType)
		log.Log(WARN, "processAction() ERROR findWidgetId found nil for id =", a.WidgetId)
		if WARN.Bool() {
			me.treeRoot.ListWidgets()
		}
		return
		panic("findWidgetId found nil for id = " + string(a.WidgetId))
	}

	if a.ActionType == widget.Dump {
		log.Log(NOW, "processAction() Dump =", a.ActionType, a.WidgetType, n.State.ProgName)
		return
	}

	switch a.ActionType {
	case widget.Delete:
		widgetDelete(n)
	case widget.Show:
		show(n, true)
	case widget.Hide:
		show(n, false)
	case widget.Enable:
		enable(n, true)
	case widget.Disable:
		log.Log(ANDLABS, "andlabs got disable for", n.WidgetId, n.State.ProgName)
		enable(n, false)
	case widget.Checked:
		setChecked(n, a.State.Checked)
	case widget.Get:
		setText(n, a)
	case widget.GetText:
		switch a.WidgetType {
		case widget.Textbox:
			a.Value = n.State.Value
		}
	case widget.Set:
		setText(n, a)
	case widget.SetText:
		log.Log(ANDLABS, "andlabs SetText wid =", n.WidgetId, n.State.Value, a.State.Value)
		setText(n, a)
	case widget.AddText:
		addText(n, a)
	default:
		log.Log(ERROR, "processAction() Unknown =", a.ActionType, a.WidgetType)
	}
	log.Log(INFO, "processAction() END =", a.ActionType, a.WidgetType)
}