toolkits
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gocui
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init move into seperate repo. all history lost :( 

Signed-off-by: Jeff Carr <jcarr@wit.com>
This commit is contained in:
Jeff Carr 2024-01-18 00:08:37 -06:00
commit 3ac6b2486a
23 changed files with 2757 additions and 0 deletions
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26
Makefile Normal file
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all: plugin
ldd ../gocui.so
plugin:
GO111MODULE=off go build -v -buildmode=plugin -o ../gocui.so
goget:
go get -v -t -u
objdump:
objdump -t ../gocui.so |less
log:
reset
tail -f /tmp/witgui.* /tmp/guilogfile
cleanbuild:
go build -v -x -buildmode=plugin -o ../nocui.so
check-git-clean:
@git diff-index --quiet HEAD -- || (echo "Git repository is dirty, please commit your changes first"; exit 1)
redomod:
rm -f go.*
GO111MODULE= go mod init
GO111MODULE= go mod tidy

80
add.go Normal file
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package main
import (
"go.wit.com/lib/widget"
log "go.wit.com/log"
)
var fakeStartWidth int = me.FakeW
var fakeStartHeight int = me.TabH + me.FramePadH
// setup fake labels for non-visible things off screen
func (n *node) setFake() {
w := n.tk
w.isFake = true
n.gocuiSetWH(fakeStartWidth, fakeStartHeight)
fakeStartHeight += w.gocuiSize.Height()
// TODO: use the actual max hight of the terminal window
if fakeStartHeight > 24 {
fakeStartHeight = me.TabH
fakeStartWidth += me.FakeW
}
if true {
n.showView()
}
}
// set the widget start width & height
func (n *node) addWidget() {
nw := n.tk
log.Log(INFO, "setStartWH() w.id =", n.WidgetId, "n.name", n.progname)
switch n.WidgetType {
case widget.Root:
log.Log(INFO, "setStartWH() rootNode w.id =", n.WidgetId, "w.name", n.progname)
nw.color = &colorRoot
n.setFake()
return
case widget.Flag:
nw.color = &colorFlag
n.setFake()
return
case widget.Window:
nw.frame = false
nw.color = &colorWindow
// redoWindows(0,0)
return
case widget.Tab:
nw.color = &colorTab
// redoWindows(0,0)
return
case widget.Button:
nw.color = &colorButton
case widget.Box:
nw.color = &colorBox
nw.isFake = true
n.setFake()
return
case widget.Grid:
nw.color = &colorGrid
nw.isFake = true
n.setFake()
return
case widget.Group:
nw.color = &colorGroup
nw.frame = false
return
case widget.Label:
nw.color = &colorLabel
nw.frame = false
return
default:
/*
if n.IsCurrent() {
n.updateCurrent()
}
*/
}
n.showWidgetPlacement(true, "addWidget()")
}

32
args.go Normal file
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package main
/*
this enables command line options from other packages like 'gui' and 'log'
*/
import (
"go.wit.com/log"
)
var outputS []string
var NOW *log.LogFlag
var INFO *log.LogFlag
var SPEW *log.LogFlag
var WARN *log.LogFlag
var ERROR *log.LogFlag
func init() {
full := "toolkit/nocui"
short := "nocui"
NOW = log.NewFlag("NOW", true, full, short, "temp debugging stuff")
INFO = log.NewFlag("INFO", false, full, short, "normal debugging stuff")
WARN = log.NewFlag("WARN", true, full, short, "bad things")
SPEW = log.NewFlag("SPEW", false, full, short, "spew stuff")
ERROR = log.NewFlag("ERROR", false, full, short, "toolkit errors")
}

33
checkbox.go Normal file
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package main
import (
// "github.com/awesome-gocui/gocui"
"go.wit.com/lib/widget"
)
func (n *node) setCheckbox(b any) {
w := n.tk
if n.WidgetType != widget.Checkbox {
return
}
if widget.GetBool(b) {
n.value = b
n.tk.label = "X " + n.label
} else {
n.value = b
n.tk.label = " " + n.label
}
t := len(n.tk.label) + 1
w.gocuiSize.w1 = w.gocuiSize.w0 + t
// w.realWidth = w.gocuiSize.Width() + me.PadW
// w.realHeight = w.gocuiSize.Height() + me.PadH
// if w.frame {
// w.realWidth += me.FramePadW
// w.realHeight += me.FramePadH
// }
n.deleteView()
n.showView()
}

357
click.go Normal file
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package main
import (
"fmt"
"github.com/awesome-gocui/gocui"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
// set isCurrent = false everywhere
func unsetCurrent(n *node) {
w := n.tk
w.isCurrent = false
if n.WidgetType == widget.Tab {
// n.tk.color = &colorTab
// n.setColor()
}
for _, child := range n.children {
unsetCurrent(child)
}
}
// when adding a new widget, this will update the display
// of the current widgets if that widget is supposed
// to be in current display
func (n *node) updateCurrent() {
log.Log(NOW, "updateCurrent()", n.progname)
if n.WidgetType == widget.Tab {
if n.IsCurrent() {
// n.tk.color = &colorActiveT
n.setColor(&colorActiveT)
n.hideView()
n.showView()
setCurrentTab(n)
} else {
// n.tk.color = &colorTab
// n.setColor()
}
return
}
if n.WidgetType == widget.Window {
if n.IsCurrent() {
// setCurrentWindow(n)
}
return
}
if n.WidgetType == widget.Root {
return
}
n.parent.updateCurrent()
}
// shows the widgets in a window
func setCurrentWindow(n *node) {
if n.IsCurrent() {
return
}
w := n.tk
if n.WidgetType != widget.Window {
return
}
unsetCurrent(me.rootNode)
if n.hasTabs {
// set isCurrent = true on the first tab
for _, child := range n.children {
child.tk.isCurrent = true
break
}
} else {
w.isCurrent = true
}
}
// shows the widgets in a tab
func setCurrentTab(n *node) {
w := n.tk
if n.WidgetType != widget.Tab {
return
}
unsetCurrent(me.rootNode)
w.isCurrent = true
p := n.parent.tk
p.isCurrent = true
log.Log(NOW, "setCurrent()", n.progname)
}
func (n *node) doWidgetClick() {
switch n.WidgetType {
case widget.Root:
// THIS IS THE BEGINING OF THE LAYOUT
log.Log(NOW, "doWidgetClick()", n.progname)
redoWindows(0, 0)
case widget.Flag:
log.Log(NOW, "doWidgetClick() FLAG widget name =", n.progname)
log.Log(NOW, "doWidgetClick() if this is the dropdown menu, handle it here?")
case widget.Window:
if me.currentWindow == n {
return
}
if me.currentWindow != nil {
unsetCurrent(me.currentWindow)
me.currentWindow.setColor(&colorWindow)
me.currentWindow.hideWidgets()
}
n.hideWidgets()
me.currentWindow = n
// setCurrentWindow(n) // probably delete this
n.setColor(&colorActiveW)
n.redoTabs(me.TabW, me.TabH)
for _, child := range n.children {
if child.currentTab == true {
log.Log(NOW, "FOUND CURRENT TAB", child.progname)
setCurrentTab(child)
child.placeWidgets(me.RawW, me.RawH)
child.showWidgets()
return
}
}
/* FIXME: redo this
if ! n.hasTabs {
}
*/
case widget.Tab:
if n.IsCurrent() {
return // do nothing if you reclick on the already selected tab
}
// find the window and disable the active tab
p := n.parent
if p != nil {
p.hideWidgets()
p.redoTabs(me.TabW, me.TabH)
unsetCurrent(p)
for _, child := range p.children {
if child.WidgetType == widget.Tab {
child.setColor(&colorTab)
n.currentTab = false
}
}
}
n.currentTab = true
n.setColor(&colorActiveT)
setCurrentTab(n)
n.placeWidgets(me.RawW, me.RawH)
n.showWidgets()
case widget.Group:
// n.placeWidgets(p.tk.startH, newH)
n.toggleTree()
case widget.Checkbox:
if widget.GetBool(n.value) {
n.setCheckbox(false)
} else {
n.setCheckbox(true)
}
n.doUserEvent()
case widget.Grid:
newR := n.realGocuiSize()
// w,h := n.logicalSize()
// w := newR.w1 - newR.w0
// h := newR.h1 - newR.h0
n.placeGrid(newR.w0, newR.h0)
n.showWidgets()
case widget.Box:
// w.showWidgetPlacement(logNow, "drawTree()")
if n.direction == widget.Horizontal {
log.Log(NOW, "BOX IS HORIZONTAL", n.progname)
} else {
log.Log(NOW, "BOX IS VERTICAL", n.progname)
}
// n.placeWidgets()
n.toggleTree()
case widget.Button:
n.doUserEvent()
case widget.Dropdown:
log.Log(NOW, "do the dropdown here")
if me.ddview == nil {
me.ddview = addDropdown()
tk := me.ddview.tk
tk.gocuiSize.w0 = 20
tk.gocuiSize.w1 = 40
tk.gocuiSize.h0 = 10
tk.gocuiSize.h1 = 25
tk.v, _ = me.baseGui.SetView("ddview",
tk.gocuiSize.w0,
tk.gocuiSize.h0,
tk.gocuiSize.w1,
tk.gocuiSize.h1, 0)
if tk.v == nil {
return
}
tk.v.Wrap = true
tk.v.Frame = true
tk.v.Clear()
fmt.Fprint(tk.v, "example.com\nwit.com")
me.ddview.SetVisible(true)
return
}
log.Log(NOW, "doWidgetClick() visible =", me.ddview.Visible())
if me.ddview.Visible() {
me.ddview.SetVisible(false)
me.baseGui.DeleteView("ddview")
me.ddview.tk.v = nil
} else {
var dnsList string
for i, s := range n.vals {
log.Log(NOW, "AddText()", n.progname, i, s)
dnsList += s + "\n"
}
me.ddNode = n
log.Log(NOW, "new dns list should be set to:", dnsList)
me.ddview.label = dnsList
me.ddview.SetText(dnsList)
me.ddview.SetVisible(true)
}
for i, s := range n.vals {
log.Log(NOW, "AddText()", n.progname, i, s)
}
default:
}
}
var toggle bool = true
func (n *node) toggleTree() {
if toggle {
n.drawTree(toggle)
toggle = false
} else {
n.hideWidgets()
toggle = true
}
}
// display the widgets in the binary tree
func (n *node) drawTree(draw bool) {
w := n.tk
if w == nil {
return
}
n.showWidgetPlacement(true, "drawTree()")
if draw {
// w.textResize()
n.showView()
} else {
n.deleteView()
}
for _, child := range n.children {
child.drawTree(draw)
}
}
func click(g *gocui.Gui, v *gocui.View) error {
// var l string
// var err error
log.Log(INFO, "click() START", v.Name())
// n := me.rootNode.findWidgetName(v.Name())
n := findUnderMouse()
if n != nil {
log.Log(NOW, "click() Found widget =", n.WidgetId, n.progname, ",", n.label)
if n.progname == "DropBox" {
log.Log(NOW, "click() this is the dropdown menu. set a flag here what did I click? where is the mouse?")
log.Log(NOW, "click() set a global dropdown clicked flag=true here")
me.ddClicked = true
}
n.doWidgetClick()
} else {
log.Log(NOW, "click() could not find node name =", v.Name())
}
if _, err := g.SetCurrentView(v.Name()); err != nil {
log.Log(NOW, "click() END err =", err)
return err
}
log.Log(NOW, "click() END")
return nil
}
func findUnderMouse() *node {
var found *node
var widgets []*node
var f func(n *node)
w, h := me.baseGui.MousePosition()
// find buttons that are below where the mouse button click
f = func(n *node) {
widget := n.tk
// ignore widgets that are not visible
if n.Visible() {
if (widget.gocuiSize.w0 <= w) && (w <= widget.gocuiSize.w1) &&
(widget.gocuiSize.h0 <= h) && (h <= widget.gocuiSize.h1) {
widgets = append(widgets, n)
found = n
}
}
if n == me.ddview {
log.Log(NOW, "findUnderMouse() found ddview")
if n.Visible() {
log.Log(NOW, "findUnderMouse() and ddview is visable. hide it here. TODO: find highlighted row")
found = n
// find the actual value here and set the dropdown widget
me.baseGui.DeleteView("ddview")
} else {
log.Log(NOW, "findUnderMouse() I was lying, actually it's not found")
}
}
for _, child := range n.children {
f(child)
}
}
f(me.rootNode)
// widgets has everything that matches
// TODO: pop up menu with a list of them
for _, n := range widgets {
//log(logNow, "ctrlDown() FOUND widget", widget.id, widget.name)
n.showWidgetPlacement(true, "findUnderMouse() FOUND")
}
return found
}
// find the widget under the mouse click
func ctrlDown(g *gocui.Gui, v *gocui.View) error {
var found *node
// var widgets []*node
// var f func (n *node)
found = findUnderMouse()
if me.ctrlDown == nil {
setupCtrlDownWidget()
me.ctrlDown.label = found.progname
me.ctrlDown.tk.cuiName = "ctrlDown"
// me.ctrlDown.parent = me.rootNode
}
cd := me.ctrlDown.tk
if found == nil {
found = me.rootNode
}
me.ctrlDown.label = found.progname
newR := found.realGocuiSize()
cd.gocuiSize.w0 = newR.w0
cd.gocuiSize.h0 = newR.h0
cd.gocuiSize.w1 = newR.w1
cd.gocuiSize.h1 = newR.h1
if me.ctrlDown.Visible() {
me.ctrlDown.hideView()
} else {
me.ctrlDown.showView()
}
me.ctrlDown.showWidgetPlacement(true, "ctrlDown:")
return nil
}

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color.go Normal file
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package main
import (
"github.com/awesome-gocui/gocui"
"math/rand"
"go.wit.com/log"
)
//w.v.SelBgColor = gocui.ColorCyan
//color.go: w.v.SelFgColor = gocui.ColorBlack
//color.go: w.v.BgColor = gocui.ColorGreen
type colorT struct {
frame gocui.Attribute
fg gocui.Attribute
bg gocui.Attribute
selFg gocui.Attribute
selBg gocui.Attribute
name string
}
var none gocui.Attribute = gocui.AttrNone
var lightPurple gocui.Attribute = gocui.GetColor("#DDDDDD") // light purple
var darkPurple gocui.Attribute = gocui.GetColor("#FFAA55") // Dark Purple
var heavyPurple gocui.Attribute = gocui.GetColor("#88AA55") // heavy purple
var powdererBlue gocui.Attribute = gocui.GetColor("#B0E0E6") // w3c 'powerder blue'
var superLightGrey gocui.Attribute = gocui.GetColor("#55AAFF") // super light grey
// Standard defined colors from gocui:
// ColorBlack ColorRed ColorGreen ColorYellow ColorBlue ColorMagenta ColorCyan ColorWhite
// v.BgColor = gocui.GetColor("#111111") // crazy red
// v.BgColor = gocui.GetColor("#FF9911") // heavy red
// v.SelBgColor = gocui.GetColor("#FFEE11") // blood red
// v.BgColor = gocui.GetColor("#55AAFF") // super light grey
// v.BgColor = gocui.GetColor("#FFC0CB") // 'w3c pink' yellow
// Normal Text On mouseover
//
// Widget Frame Text background Text background
var colorWindow colorT = colorT{none, gocui.ColorBlue, none, none, powdererBlue, "normal window"}
var colorActiveW colorT = colorT{none, none, powdererBlue, none, powdererBlue, "active window"}
var colorTab colorT = colorT{gocui.ColorBlue, gocui.ColorBlue, none, none, powdererBlue, "normal tab"}
var colorActiveT colorT = colorT{gocui.ColorBlue, none, powdererBlue, none, powdererBlue, "active tab"}
var colorButton colorT = colorT{gocui.ColorGreen, none, gocui.ColorWhite, gocui.ColorGreen, gocui.ColorBlack, "normal button"}
var colorLabel colorT = colorT{none, none, superLightGrey, none, superLightGrey, "normal label"}
var colorGroup colorT = colorT{none, none, superLightGrey, none, superLightGrey, "normal group"}
// widget debugging colors. these widgets aren't displayed unless you are debugging
var colorRoot colorT = colorT{gocui.ColorRed, none, powdererBlue, none, gocui.ColorBlue, "debug root"}
var colorFlag colorT = colorT{gocui.ColorRed, none, powdererBlue, none, gocui.ColorGreen, "debug flag"}
var colorBox colorT = colorT{gocui.ColorRed, none, lightPurple, none, gocui.ColorCyan, "debug box"}
var colorGrid colorT = colorT{gocui.ColorRed, none, lightPurple, none, gocui.ColorRed, "debug grid"}
var colorNone colorT = colorT{none, none, none, none, none, "debug none"}
// actually sets the colors for the gocui element
// the user will see the colors change when this runs
// TODO: add black/white only flag for ttyS0
// TODO: or fix kvm/qemu serial console & SIGWINCH.
// TODO: and minicom and uboot and 5 million other things.
// TODO: maybe enough of us could actually do that if we made it a goal.
// TODO: start with riscv boards and fix it universally there
// TODO: so just a small little 'todo' item here
func (n *node) setColor(newColor *colorT) {
tk := n.tk
if tk.color == newColor {
// nothing to do since the colors have nto changed
return
}
tk.color = newColor
if tk.v == nil {
return
}
if tk.color == nil {
log.Log(NOW, "Set the node to color = nil")
tk.color = &colorNone
}
log.Log(NOW, "Set the node to color =", tk.color.name)
n.recreateView()
}
func (n *node) setDefaultWidgetColor() {
n.showView()
}
func (n *node) setDefaultHighlight() {
w := n.tk
if w.v == nil {
log.Log(ERROR, "SetColor() failed on view == nil")
return
}
w.v.SelBgColor = gocui.ColorGreen
w.v.SelFgColor = gocui.ColorBlack
}
func randColor() gocui.Attribute {
colors := []string{"Green", "#FFAA55", "Yellow", "Blue", "Red", "Black", "White"}
i := rand.Intn(len(colors))
log.Log(NOW, "randColor() i =", i)
return gocui.GetColor(colors[i])
}
func (n *node) redoColor(draw bool) {
w := n.tk
if w == nil {
return
}
log.Sleep(.05)
n.setDefaultHighlight()
n.setDefaultWidgetColor()
for _, child := range n.children {
child.redoColor(draw)
}
}

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common.go Normal file
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package main
/*
These code should be common to all gui plugins
There are some helper functions that are probably going to be
the same everywhere. Mostly due to handling the binary tree structure
and the channel communication
For now, it's just a symlink to the 'master' version in
./toolkit/nocui/common.go
*/
import (
"go.wit.com/lib/widget"
"go.wit.com/log"
)
// this is the channel we send user events like
// mouse clicks or keyboard events back to the program
var callback chan widget.Action
// this is the channel we get requests to make widgets
var pluginChan chan widget.Action
type node struct {
parent *node
children []*node
WidgetId int // widget ID
WidgetType widget.WidgetType
ParentId int // parent ID
state widget.State
// a reference name for programming and debuggign. Must be unique
progname string
// the text used for button labesl, window titles, checkbox names, etc
label string
// horizontal means layout widgets like books on a bookshelf
// vertical means layout widgets like books in a stack
// direction widget.Orientation
direction widget.Orientation
// This is how the values are passed back and forth
// values from things like checkboxes & dropdown's
value any
strings []string
// This is used for things like a slider(0,100)
X int
Y int
// This is for the grid size & widget position
W int
H int
AtW int
AtH int
vals []string // dropdown menu items
// horizontal bool `default:false`
hasTabs bool // does the window have tabs?
currentTab bool // the visible tab
// the internal plugin toolkit structure
// in the gtk plugin, it has gtk things like margin & border settings
// in the text console one, it has text console things like colors for menus & buttons
tk *guiWidget
}
// searches the binary tree for a WidgetId
func (n *node) findWidgetId(id int) *node {
if n == nil {
return nil
}
if n.WidgetId == id {
return n
}
for _, child := range n.children {
newN := child.findWidgetId(id)
if newN != nil {
return newN
}
}
return nil
}
func (n *node) doUserEvent() {
if callback == nil {
log.Log(ERROR, "doUserEvent() callback == nil", n.WidgetId)
return
}
var a widget.Action
a.WidgetId = n.WidgetId
a.Value = n.value
a.ActionType = widget.User
log.Log(INFO, "doUserEvent() START: send a user event to the callback channel")
callback <- a
log.Log(INFO, "doUserEvent() END: sent a user event to the callback channel")
return
}
// Other goroutines must use this to access the GUI
//
// You can not acess / process the GUI thread directly from
// other goroutines. This is due to the nature of how
// Linux, MacOS and Windows work (they all work differently. suprise. surprise.)
//
// this sets the channel to send user events back from the plugin
func Callback(guiCallback chan widget.Action) {
callback = guiCallback
}
func PluginChannel() chan widget.Action {
return pluginChan
}
/*
func convertString(val any) string {
switch v := val.(type) {
case bool:
n.B = val.(bool)
case string:
n.label = val.(string)
n.S = val.(string)
case int:
n.I = val.(int)
default:
log.Error(errors.New("Set() unknown type"), "v =", v)
}
}
*/
/*
// this is in common.go, do not move it
func getString(A any) string {
if A == nil {
log.Warn("getString() got nil")
return ""
}
var k reflect.Kind
k = reflect.TypeOf(A).Kind()
switch k {
case reflect.Int:
var i int
i = A.(int)
return string(i)
case reflect.String:
return A.(string)
case reflect.Bool:
if A.(bool) == true {
return "true"
} else {
return "false"
}
default:
log.Warn("getString uknown kind", k, "value =", A)
return ""
}
return ""
}
*/
// this is in common.go, do not move it
func addNode(a *widget.Action) *node {
n := new(node)
n.WidgetType = a.WidgetType
n.WidgetId = a.WidgetId
n.ParentId = a.ParentId
n.state = a.State
// copy the data from the action message
n.progname = a.ProgName
n.value = a.Value
n.direction = a.Direction
n.strings = a.Strings
// TODO: these need to be rethought
n.X = a.X
n.Y = a.Y
n.W = a.W
n.H = a.H
n.AtW = a.AtW
n.AtH = a.AtH
// store the internal toolkit information
n.tk = initWidget(n)
// n.tk = new(guiWidget)
if a.WidgetType == widget.Root {
log.Log(INFO, "addNode() Root")
return n
}
if me.rootNode.findWidgetId(a.WidgetId) != nil {
log.Log(ERROR, "addNode() WidgetId already exists", a.WidgetId)
return me.rootNode.findWidgetId(a.WidgetId)
}
// add this new widget on the binary tree
n.parent = me.rootNode.findWidgetId(a.ParentId)
if n.parent != nil {
n.parent.children = append(n.parent.children, n)
//w := n.tk
//w.parent = n.parent.tk
//w.parent.children = append(w.parent.children, w)
}
return n
}

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debug.go Normal file
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package main
import (
"fmt"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func (n *node) dumpTree(draw bool) {
w := n.tk
if w == nil {
return
}
n.showWidgetPlacement(true, "dumpTree()")
for _, child := range n.children {
child.dumpTree(draw)
}
}
func (n *node) showWidgetPlacement(b bool, s string) {
if n == nil {
log.Log(ERROR, "WTF w == nil")
return
}
w := n.tk
var s1 string
var pId int
if n.parent == nil {
log.Log(INFO, "showWidgetPlacement() parent == nil", n.WidgetId, w.cuiName)
pId = 0
} else {
pId = n.parent.WidgetId
}
s1 = fmt.Sprintf("(wId,pId)=(%2d,%2d) ", n.WidgetId, pId)
if n.Visible() {
s1 += fmt.Sprintf("gocui=(%2d,%2d)(%2d,%2d,%2d,%2d)",
w.gocuiSize.Width(), w.gocuiSize.Height(),
w.gocuiSize.w0, w.gocuiSize.h0, w.gocuiSize.w1, w.gocuiSize.h1)
} else {
s1 += fmt.Sprintf(" ")
}
if n.parent != nil {
if n.parent.WidgetType == widget.Grid {
s1 += fmt.Sprintf("At(%2d,%2d) ", n.AtW, n.AtH)
}
}
tmp := "." + n.progname + "."
log.Log(INFO, s1, s, n.WidgetType, ",", tmp) // , "text=", w.text)
}
func (n *node) dumpWidget(pad string) {
log.Log(NOW, "node:", pad, n.WidgetId, "At(", n.AtW, n.AtH, ") ,", n.WidgetType, ", n.progname =", n.progname, ", n.label =", n.label)
}
func (n *node) listWidgets() {
if n == nil {
return
}
var pad string
for i := 0; i < me.depth; i++ {
pad = pad + " "
}
n.dumpWidget(pad)
for _, child := range n.children {
me.depth += 1
child.listWidgets()
me.depth -= 1
}
return
}

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fakefile.go Normal file
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package main
import (
"bytes"
"errors"
"io"
)
type FakeFile struct {
reader *bytes.Reader
buffer *bytes.Buffer
offset int64
}
func (f *FakeFile) Read(p []byte) (n int, err error) {
n, err = f.reader.ReadAt(p, f.offset)
f.offset += int64(n)
return n, err
}
func (f *FakeFile) Write(p []byte) (n int, err error) {
n, err = f.buffer.Write(p)
f.offset += int64(n)
f.reader.Reset(f.buffer.Bytes())
return n, err
}
func (f *FakeFile) Seek(offset int64, whence int) (int64, error) {
newOffset := f.offset
switch whence {
case io.SeekStart:
newOffset = offset
case io.SeekCurrent:
newOffset += offset
case io.SeekEnd:
newOffset = int64(f.buffer.Len()) + offset
default:
return 0, errors.New("Seek: whence not at start,current or end")
}
// never can get here right?
if newOffset < 0 {
return 0, errors.New("Seek: offset < 0")
}
f.offset = newOffset
return f.offset, nil
}
func NewFakeFile() *FakeFile {
buf := &bytes.Buffer{}
return &FakeFile{
reader: bytes.NewReader(buf.Bytes()),
buffer: buf,
offset: 0,
}
}

21
go.mod Normal file
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module go.wit.com/gui/toolkits/gocui
go 1.21.4
require (
github.com/awesome-gocui/gocui v1.1.0
go.wit.com/gui/widget v1.1.3
go.wit.com/log v0.5.4
)
require (
github.com/gdamore/encoding v1.0.0 // indirect
github.com/gdamore/tcell/v2 v2.4.0 // indirect
github.com/lucasb-eyer/go-colorful v1.0.3 // indirect
github.com/mattn/go-runewidth v0.0.10 // indirect
github.com/rivo/uniseg v0.1.0 // indirect
go.wit.com/dev/davecgh/spew v1.1.4 // indirect
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 // indirect
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf // indirect
golang.org/x/text v0.3.3 // indirect
)

30
go.sum Normal file
View File

@ -0,0 +1,30 @@
github.com/awesome-gocui/gocui v1.1.0 h1:db2j7yFEoHZjpQFeE2xqiatS8bm1lO3THeLwE6MzOII=
github.com/awesome-gocui/gocui v1.1.0/go.mod h1:M2BXkrp7PR97CKnPRT7Rk0+rtswChPtksw/vRAESGpg=
github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
github.com/gdamore/tcell/v2 v2.4.0 h1:W6dxJEmaxYvhICFoTY3WrLLEXsQ11SaFnKGVEXW57KM=
github.com/gdamore/tcell/v2 v2.4.0/go.mod h1:cTTuF84Dlj/RqmaCIV5p4w8uG1zWdk0SF6oBpwHp4fU=
github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
go.wit.com/dev/davecgh/spew v1.1.3 h1:hqnB5qsPgC2cLZaJXqQJspQ5n/Ugry9kyL3tLk0hVzQ=
go.wit.com/dev/davecgh/spew v1.1.3/go.mod h1:sihvWmnQ/09FWplnEmozt90CCVqBtGuPXM811tgfhFA=
go.wit.com/dev/davecgh/spew v1.1.4 h1:C9hj/rjlUpdK+E6aroyLjCbS5MFcyNUOuP1ICLWdNek=
go.wit.com/dev/davecgh/spew v1.1.4/go.mod h1:sihvWmnQ/09FWplnEmozt90CCVqBtGuPXM811tgfhFA=
go.wit.com/gui/widget v1.1.3 h1:GvLzGSOF9tfmoh6HNbFdN+NSlBo2qeS/Ba2TnQQ1A1U=
go.wit.com/gui/widget v1.1.3/go.mod h1:A6/FaiFQtAHTjgo7c4FrokXe6bXX1Cowo35b2Lgi31E=
go.wit.com/log v0.5.3 h1:/zHkniOPusPEuX1R401rMny9uwSO/nSU/QOMx6qoEnE=
go.wit.com/log v0.5.3/go.mod h1:LzIzVxc2xJQxWQBtV9VbV605P4TOxmYDCl+BZF38yGE=
go.wit.com/log v0.5.4 h1:vijLRPTUgChb8J5tx/7Uma/lGTUxeSXosFbheAmL914=
go.wit.com/log v0.5.4/go.mod h1:BaJBfHFqcJSJLXGQ9RHi3XVhPgsStxSMZRlaRxW4kAo=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf h1:MZ2shdL+ZM/XzY3ZGOnh4Nlpnxz5GSOhOmtHo3iPU6M=
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

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// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"errors"
"github.com/awesome-gocui/gocui"
"go.wit.com/log"
)
// This initializes the gocui package
// it runs SetManagerFunc which passes every input
// event (keyboard, mouse, etc) to the function "gocuiEvent()"
func gocuiMain() {
g, err := gocui.NewGui(gocui.OutputNormal, true)
if err != nil {
panic(err)
}
defer g.Close()
me.baseGui = g
g.Cursor = true
g.Mouse = true
// this sets the function that is run on every event. For example:
// When you click the mouse, move the mouse, or press a key on the keyboard
// This is equivalent to xev or similar to cat /dev/input on linux
g.SetManagerFunc(gocuiEvent)
if err := defaultKeybindings(g); err != nil {
panic(err)
}
if err := g.MainLoop(); err != nil && !errors.Is(err, gocui.ErrQuit) {
panic(err)
}
}
// Thanks to the gocui developers -- your package kicks ass
// This function is called on every event. It is a callback function from the gocui package
// which has an excellent implementation. While gocui handles things like text highlighting
// and the layout of the text areas -- also things like handling SIGWINCH and lots of really
// complicated console handling, it sends events here in a clean way.
// This is equivalent to the linux command xev (apt install x11-utils)
func gocuiEvent(g *gocui.Gui) error {
maxX, maxY := g.Size()
mx, my := g.MousePosition()
log.Log(NOW, "handleEvent() START", maxX, maxY, mx, my, msgMouseDown)
if _, err := g.View("msg"); msgMouseDown && err == nil {
moveMsg(g)
}
if widgetView, _ := g.View("msg"); widgetView == nil {
log.Log(NOW, "handleEvent() create output widget now", maxX, maxY, mx, my)
makeOutputWidget(g, "this is a create before a mouse click")
if me.logStdout != nil {
// setOutput(me.logStdout)
}
} else {
log.Log(INFO, "output widget already exists", maxX, maxY, mx, my)
}
mouseMove(g)
log.Log(INFO, "handleEvent() END ", maxX, maxY, mx, my, msgMouseDown)
return nil
}
func dragOutputWindow() {
}
// turns off the frame on the global window
func setFrame(b bool) {
// TODO: figure out what this might be useful for
// what is this do? I made it just 2 lines for now. Is this useful for something?
v := SetView("global", 5, 10, 5, 10, 0) // x0, x1, y1, y2, overlap
if v == nil {
log.Log(ERROR, "setFrame() global failed")
}
v.Frame = b
}
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}
func SetView(name string, x0, y0, x1, y1 int, overlaps byte) *gocui.View {
if me.baseGui == nil {
log.Log(ERROR, "SetView() ERROR: me.baseGui == nil")
return nil
}
v, err := me.baseGui.SetView(name, x0, y0, x1, y1, overlaps)
if err != nil {
if !errors.Is(err, gocui.ErrUnknownView) {
log.Log(ERROR, "SetView() global failed on name =", name)
}
return nil
}
return v
}

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help.go Normal file
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// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"errors"
"fmt"
"strings"
"github.com/awesome-gocui/gocui"
)
var helpText []string = []string{"KEYBINDINGS",
"",
"?: toggle help",
"d: toggle debugging",
"r: redraw widgets",
"s/h: show/hide all widgets",
"L: list all widgets",
"M: list all widgets positions",
"q: quit()",
"p: panic()",
"o: show Stdout",
"l: log to /tmp/witgui.log",
"Ctrl-D: Toggle Debugging",
"Ctrl-V: Toggle Verbose Debugging",
"Ctrl-C: Exit",
"",
}
func hidehelplayout() {
me.baseGui.DeleteView("help")
// n.deleteView()
// child.hideFake()
}
func helplayout() error {
g := me.baseGui
var err error
maxX, _ := g.Size()
var newW int = 8
for _, s := range helpText {
if newW < len(s) {
newW = len(s)
}
}
help, err := g.SetView("help", maxX-(newW+me.FramePadW), 0, maxX-1, len(helpText)+me.FramePadH, 0)
if err != nil {
if !errors.Is(err, gocui.ErrUnknownView) {
return err
}
help.SelBgColor = gocui.ColorGreen
help.SelFgColor = gocui.ColorBlack
// fmt.Fprintln(help, "Enter: Click Button")
// fmt.Fprintln(help, "Tab/Space: Switch Buttons")
// fmt.Fprintln(help, "Backspace: Delete Button")
// fmt.Fprintln(help, "Arrow keys: Move Button")
fmt.Fprintln(help, strings.Join(helpText, "\n"))
if _, err := g.SetCurrentView("help"); err != nil {
return err
}
}
me.helpLabel = help
return nil
}

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keybindings.go Normal file
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// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"github.com/awesome-gocui/gocui"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func defaultKeybindings(g *gocui.Gui) error {
if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
return err
}
for _, n := range []string{"but1", "but2", "help", "but3"} {
if err := g.SetKeybinding(n, gocui.MouseLeft, gocui.ModNone, showMsg); err != nil {
return err
}
}
if err := g.SetKeybinding("", gocui.MouseRelease, gocui.ModNone, mouseUp); err != nil {
return err
}
// mouseDown() runs whenever you click on an unknown view (?)
if err := g.SetKeybinding("", gocui.MouseLeft, gocui.ModNone, mouseDown); err != nil {
return err
}
if err := g.SetKeybinding("", gocui.MouseLeft, gocui.ModMouseCtrl, ctrlDown); err != nil {
return err
}
// if err := g.SetKeybinding(w.v.Name(), gocui.MouseLeft, gocui.ModNone, click); err != nil {
// return err
// }
/*
if err := g.SetKeybinding("", gocui.MouseLeft, gocui.ModNone, globalDown); err != nil {
return err
}
*/
if err := g.SetKeybinding("msg", gocui.MouseLeft, gocui.ModNone, msgDown); err != nil {
return err
}
addDebugKeys(g)
return nil
}
func addDebugKeys(g *gocui.Gui) {
// show debugging buttons
g.SetKeybinding("", 'd', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
fakeStartWidth = me.FakeW
fakeStartHeight = me.TabH + me.FramePadH
if showDebug {
me.rootNode.showFake()
showDebug = false
} else {
me.rootNode.hideFake()
showDebug = true
}
return nil
})
// display the help menu
g.SetKeybinding("", '?', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
if showHelp {
helplayout()
showHelp = false
} else {
me.baseGui.DeleteView("help")
showHelp = true
}
return nil
})
// redraw all the widgets
g.SetKeybinding("", 'r', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
if redoWidgets {
redoWindows(0, 0)
redoWidgets = false
} else {
me.rootNode.hideWidgets()
redoWidgets = true
}
return nil
})
// hide all widgets
g.SetKeybinding("", 'h', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
me.rootNode.hideWidgets()
return nil
})
// show all widgets
g.SetKeybinding("", 's', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
me.rootNode.showWidgets()
return nil
})
// list all widgets
g.SetKeybinding("", 'L', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
me.rootNode.listWidgets()
return nil
})
// list all widgets with positions
g.SetKeybinding("", 'M', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
me.rootNode.dumpTree(true)
return nil
})
// log to output window
g.SetKeybinding("", 'o', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
log.Log(ERROR, "TODO: re-implement this")
if me.logStdout.Visible() {
me.logStdout.SetVisible(false)
// setOutput(os.Stdout)
} else {
me.logStdout.SetVisible(true)
// setOutput(me.logStdout.tk)
}
return nil
})
// exit
g.SetKeybinding("", 'q', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
standardExit()
return nil
})
g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
standardExit()
return nil
})
g.SetKeybinding("", gocui.KeyCtrlD, gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
if showDebug {
var a widget.Action
a.Value = true
a.ActionType = widget.EnableDebug
callback <- a
}
return nil
})
g.SetKeybinding("", gocui.KeyCtrlV, gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
return nil
})
// panic
g.SetKeybinding("", 'p', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
standardExit()
panic("forced panic in gocui")
return nil
})
}

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main.go Normal file
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// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"os"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
// sets defaults and establishes communication
// to this toolkit from the wit/gui golang package
func init() {
log.Log(INFO, "Init() of awesome-gocui")
// init the config struct default values
Set(&me, "default")
pluginChan = make(chan widget.Action)
log.Log(NOW, "Init() start pluginChan")
go catchActionChannel()
log.Sleep(.1) // probably not needed, but in here for now under development
go main()
log.Sleep(.1) // probably not needed, but in here for now under development
}
/*
recieves requests from the program to do things like:
* add new widgets
* change the text of a label
* etc..
*/
func catchActionChannel() {
log.Log(INFO, "catchActionChannel() START")
for {
log.Log(INFO, "catchActionChannel() infinite for() loop restarted select on channel")
select {
case a := <-pluginChan:
if me.baseGui == nil {
// something went wrong initializing the gocui
log.Log(ERROR, "ERROR: console did not initialize")
continue
}
log.Log(INFO, "catchActionChannel()", a.WidgetId, a.ActionType, a.WidgetType, a.ProgName)
action(&a)
}
}
}
func Exit() {
// TODO: what should actually happen here?
log.Log(NOW, "Exit() here. doing standardExit()")
standardExit()
}
func standardExit() {
log.Log(NOW, "standardExit() doing baseGui.Close()")
me.baseGui.Close()
log.Log(NOW, "standardExit() doing outf.Close()")
outf.Close()
// log(true, "standardExit() setOutput(os.Stdout)")
// setOutput(os.Stdout)
log.Log(NOW, "standardExit() send back Quit()")
go sendBackQuit() // don't stall here in case the
// induces a delay in case the callback channel is broken
log.Sleep(1)
log.Log(NOW, "standardExit() exit()")
os.Exit(0)
}
func sendBackQuit() {
// send 'Quit' back to the program (?)
var a widget.Action
a.ActionType = widget.UserQuit
callback <- a
}
var outf *os.File
func main() {
var err error
log.Log(INFO, "main() start Init()")
outf, err = os.OpenFile("/tmp/witgui.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
log.Error(err, "error opening file: %v")
os.Exit(0)
}
os.Stdout = outf
defer outf.Close()
// setOutput(outf)
// log("This is a test log entry")
ferr, _ := os.OpenFile("/tmp/witgui.err", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0664)
os.Stderr = ferr
gocuiMain()
log.Log(NOW, "MouseMain() closed")
standardExit()
}

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mouse.go Normal file
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// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"errors"
"fmt"
"github.com/awesome-gocui/gocui"
"go.wit.com/log"
)
// this function uses the mouse position to highlight & unhighlight things
// this is run every time the user moves the mouse over the terminal window
func mouseMove(g *gocui.Gui) {
mx, my := g.MousePosition()
for _, view := range g.Views() {
view.Highlight = false
}
if v, err := g.ViewByPosition(mx, my); err == nil {
v.Highlight = true
}
}
func msgDown(g *gocui.Gui, v *gocui.View) error {
initialMouseX, initialMouseY = g.MousePosition()
log.Log(NOW, "msgDown() X,Y", initialMouseX, initialMouseY)
if vx, vy, _, _, err := g.ViewPosition("msg"); err == nil {
xOffset = initialMouseX - vx
yOffset = initialMouseY - vy
msgMouseDown = true
}
return nil
}
func hideDDview() error {
w, h := me.baseGui.MousePosition()
log.Log(NOW, "hide dropdown menu() view msgMouseDown (w,h) =", w, h)
if me.ddview == nil {
return gocui.ErrUnknownView
}
if me.ddview.tk.v == nil {
return gocui.ErrUnknownView
}
me.ddview.SetVisible(false)
return nil
}
func showDDview() error {
w, h := me.baseGui.MousePosition()
log.Log(NOW, "show dropdown menu() view msgMouseDown (w,h) =", w, h)
if me.ddview == nil {
return gocui.ErrUnknownView
}
if me.ddview.tk.v == nil {
return gocui.ErrUnknownView
}
me.ddview.SetVisible(true)
return nil
}
func mouseUp(g *gocui.Gui, v *gocui.View) error {
w, h := g.MousePosition()
log.Log(NOW, "mouseUp() view msgMouseDown (check here for dropdown menu click) (w,h) =", w, h)
if me.ddClicked {
me.ddClicked = false
log.Log(NOW, "mouseUp() ddview is the thing that was clicked", w, h)
log.Log(NOW, "mouseUp() find out what the string is here", w, h, me.ddview.tk.gocuiSize.h1)
var newZone string = ""
if me.ddNode != nil {
value := h - me.ddview.tk.gocuiSize.h0 - 1
log.Log(NOW, "mouseUp() me.ddview.tk.gocuiSize.h1 =", me.ddview.tk.gocuiSize.h1)
log.Log(NOW, "mouseUp() me.ddNode.vals =", me.ddNode.vals)
valsLen := len(me.ddNode.vals)
log.Log(NOW, "mouseUp() value =", value, "valsLen =", valsLen)
log.Log(NOW, "mouseUp() me.ddNode.vals =", me.ddNode.vals)
if (value >= 0) && (value < valsLen) {
newZone = me.ddNode.vals[value]
log.Log(NOW, "mouseUp() value =", value, "newZone =", newZone)
}
}
hideDDview()
if newZone != "" {
if me.ddNode != nil {
me.ddNode.SetText(newZone)
me.ddNode.value = newZone
me.ddNode.doUserEvent()
}
}
return nil
}
/*
// if there is a drop down view active, treat it like a dialog box and close it
if (hideDDview() == nil) {
return nil
}
*/
if msgMouseDown {
msgMouseDown = false
if movingMsg {
movingMsg = false
return nil
} else {
g.DeleteView("msg")
}
} else if globalMouseDown {
globalMouseDown = false
g.DeleteView("globalDown")
}
return nil
}
func mouseDown(g *gocui.Gui, v *gocui.View) error {
mx, my := g.MousePosition()
if vx0, vy0, vx1, vy1, err := g.ViewPosition("msg"); err == nil {
if mx >= vx0 && mx <= vx1 && my >= vy0 && my <= vy1 {
return msgDown(g, v)
}
}
globalMouseDown = true
maxX, _ := g.Size()
test := findUnderMouse()
msg := fmt.Sprintf("Mouse really down at: %d,%d", mx, my) + "foobar"
if test == me.ddview {
if me.ddview.Visible() {
log.Log(NOW, "hide DDview() Mouse really down at:", mx, my)
hideDDview()
} else {
log.Log(NOW, "show DDview() Mouse really down at:", mx, my)
showDDview()
}
return nil
}
x := mx - len(msg)/2
if x < 0 {
x = 0
} else if x+len(msg)+1 > maxX-1 {
x = maxX - 1 - len(msg) - 1
}
log.Log(NOW, "mouseDown() about to write out message to 'globalDown' view. msg =", msg)
if v, err := g.SetView("globalDown", x, my-1, x+len(msg)+1, my+1, 0); err != nil {
if !errors.Is(err, gocui.ErrUnknownView) {
return err
}
v.WriteString(msg)
}
return nil
}

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package main
import (
"strings"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func (n *node) placeBox(startW int, startH int) {
if n.WidgetType != widget.Box {
return
}
n.showWidgetPlacement(true, "boxS()")
newW := startW
newH := startH
for _, child := range n.children {
child.placeWidgets(newW, newH)
// n.showWidgetPlacement(logNow, "boxS()")
newR := child.realGocuiSize()
w := newR.w1 - newR.w0
h := newR.h1 - newR.h0
if n.direction == widget.Horizontal {
log.Log(NOW, "BOX IS HORIZONTAL", n.progname, "newWH()", newW, newH, "child()", w, h, child.progname)
// expand based on the child width
newW += w
} else {
log.Log(NOW, "BOX IS VERTICAL ", n.progname, "newWH()", newW, newH, "child()", w, h, child.progname)
// expand based on the child height
newH += h
}
}
// just compute this every time?
// newR := n.realGocuiSize()
n.showWidgetPlacement(true, "boxE()")
}
func (n *node) placeWidgets(startW int, startH int) {
if n == nil {
return
}
if me.rootNode == nil {
return
}
switch n.WidgetType {
case widget.Window:
for _, child := range n.children {
child.placeWidgets(me.RawW, me.RawH)
return
}
case widget.Tab:
for _, child := range n.children {
child.placeWidgets(me.RawW, me.RawH)
return
}
case widget.Grid:
n.placeGrid(startW, startH)
case widget.Box:
n.placeBox(startW, startH)
case widget.Group:
// move the group to the parent's next location
n.gocuiSetWH(startW, startH)
n.showWidgetPlacement(true, "group()")
newW := startW + me.GroupPadW
newH := startH + 3 // normal hight of the group label
// now move all the children aka: run place() on them
for _, child := range n.children {
child.placeWidgets(newW, newH)
newR := child.realGocuiSize()
// w := newR.w1 - newR.w0
h := newR.h1 - newR.h0
// increment straight down
newH += h
}
default:
n.gocuiSetWH(startW, startH)
// n.moveTo(startW, startH)
}
}
func (n *node) placeGrid(startW int, startH int) {
w := n.tk
n.showWidgetPlacement(true, "grid0:")
if n.WidgetType != widget.Grid {
return
}
// first compute the max sizes of the rows and columns
for _, child := range n.children {
newR := child.realGocuiSize()
childW := newR.w1 - newR.w0
childH := newR.h1 - newR.h0
// set the child's realWidth, and grid offset
if w.widths[child.AtW] < childW {
w.widths[child.AtW] = childW
}
if w.heights[child.AtH] < childH {
w.heights[child.AtH] = childH
}
// child.showWidgetPlacement(logInfo, "grid: ")
log.Log(INFO, "placeGrid:", child.progname, "child()", childW, childH, "At()", child.AtW, child.AtH)
}
// find the width and height offset of the grid for AtW,AtH
for _, child := range n.children {
child.showWidgetPlacement(true, "grid1:")
var totalW, totalH int
for i, w := range w.widths {
if i < child.AtW {
totalW += w
}
}
for i, h := range w.heights {
if i < child.AtH {
totalH += h
}
}
// the new corner to move the child to
newW := startW + totalW
newH := startH + totalH
log.Log(INFO, "placeGrid:", child.progname, "new()", newW, newH, "At()", child.AtW, child.AtH)
child.placeWidgets(newW, newH)
child.showWidgetPlacement(true, "grid2:")
}
n.showWidgetPlacement(true, "grid3:")
}
// computes the real, actual size of all the gocli objects in a widget
func (n *node) realGocuiSize() *rectType {
var f func(n *node, r *rectType)
newR := new(rectType)
// initialize the values to opposite
newR.w0 = 80
newR.h0 = 24
if me.baseGui != nil {
maxW, maxH := me.baseGui.Size()
newR.w0 = maxW
newR.h0 = maxH
}
newR.w1 = 0
newR.h1 = 0
// expand the rectangle to the biggest thing displayed
f = func(n *node, r *rectType) {
newR := n.tk.gocuiSize
if !n.tk.isFake {
if r.w0 > newR.w0 {
r.w0 = newR.w0
}
if r.h0 > newR.h0 {
r.h0 = newR.h0
}
if r.w1 < newR.w1 {
r.w1 = newR.w1
}
if r.h1 < newR.h1 {
r.h1 = newR.h1
}
}
for _, child := range n.children {
f(child, r)
}
}
f(n, newR)
return newR
}
func (n *node) textSize() (int, int) {
var width, height int
for _, s := range strings.Split(widget.GetString(n.value), "\n") {
if width < len(s) {
width = len(s)
}
height += 1
}
return width, height
}

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package main
import (
// if you include more than just this import
// then your plugin might be doing something un-ideal (just a guess from 2023/02/27)
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func action(a *widget.Action) {
log.Log(INFO, "action() START", a.WidgetId, a.ActionType, a.WidgetType, a.ProgName)
n := me.rootNode.findWidgetId(a.WidgetId)
var w *guiWidget
if n != nil {
w = n.tk
}
switch a.ActionType {
case widget.Add:
if w == nil {
n := addNode(a)
// w = n.tk
n.addWidget()
} else {
// this is done to protect the plugin being 'refreshed' with the
// widget binary tree. TODO: find a way to keep them in sync
log.Log(ERROR, "action() Add ignored for already defined widget",
a.WidgetId, a.ActionType, a.WidgetType, a.ProgName)
}
case widget.Show:
if widget.GetBool(a.Value) {
n.showView()
} else {
n.hideWidgets()
}
case widget.Set:
if a.WidgetType == widget.Flag {
log.Log(NOW, "TODO: set flag here", a.ActionType, a.WidgetType, a.ProgName)
log.Log(NOW, "TODO: n.WidgetType =", n.WidgetType, "n.progname =", a.ProgName)
} else {
if a.Value == nil {
log.Log(ERROR, "TODO: Set here. a == nil id =", a.WidgetId, "type =", a.WidgetType, "Name =", a.ProgName)
log.Log(ERROR, "TODO: Set here. id =", a.WidgetId, "n.progname =", n.progname)
} else {
n.Set(a.Value)
}
}
case widget.SetText:
n.SetText(widget.GetString(a.Value))
case widget.AddText:
n.AddText(widget.GetString(a.Value))
case widget.Move:
log.Log(NOW, "attempt to move() =", a.ActionType, a.WidgetType, a.ProgName)
case widget.ToolkitClose:
log.Log(NOW, "attempting to close the plugin and release stdout and stderr")
standardExit()
case widget.Enable:
if n.Visible() {
// widget was already shown
} else {
log.Log(INFO, "Setting Visable to true", a.ProgName)
n.SetVisible(true)
}
case widget.Disable:
if n.Visible() {
log.Log(INFO, "Setting Visable to false", a.ProgName)
n.SetVisible(false)
} else {
// widget was already hidden
}
default:
log.Log(ERROR, "action() ActionType =", a.ActionType, "WidgetType =", a.WidgetType, "Name =", a.ProgName)
}
log.Log(INFO, "action() END")
}
func (n *node) AddText(text string) {
if n == nil {
log.Log(NOW, "widget is nil")
return
}
n.vals = append(n.vals, text)
for i, s := range n.vals {
log.Log(NOW, "AddText()", n.progname, i, s)
}
n.SetText(text)
}
func (n *node) SetText(text string) {
var changed bool = false
if n == nil {
log.Log(NOW, "widget is nil")
return
}
if widget.GetString(n.value) != text {
n.value = text
changed = true
}
if !changed {
return
}
if n.Visible() {
n.textResize()
n.deleteView()
n.showView()
}
}
func (n *node) Set(val any) {
// w := n.tk
log.Log(INFO, "Set() value =", val)
n.value = val
if n.WidgetType != widget.Checkbox {
n.setCheckbox(val)
}
}

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showStdout.go Normal file
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package main
import (
"errors"
"fmt"
"github.com/awesome-gocui/gocui"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
var outputW int = 180
var outputH int = 24
func moveMsg(g *gocui.Gui) {
mx, my := g.MousePosition()
if !movingMsg && (mx != initialMouseX || my != initialMouseY) {
movingMsg = true
}
g.SetView("msg", mx-xOffset, my-yOffset, mx-xOffset+outputW, my-yOffset+outputH+me.FramePadH, 0)
g.SetViewOnBottom("msg")
}
func showMsg(g *gocui.Gui, v *gocui.View) error {
var l string
var err error
log.Log(NOW, "showMsg() v.name =", v.Name())
if _, err := g.SetCurrentView(v.Name()); err != nil {
return err
}
_, cy := v.Cursor()
if l, err = v.Line(cy); err != nil {
l = ""
}
makeOutputWidget(g, l)
return nil
}
func makeOutputWidget(g *gocui.Gui, stringFromMouseClick string) *gocui.View {
maxX, maxY := g.Size()
if me.rootNode == nil {
// keep skipping this until the binary tree is initialized
return nil
}
if me.logStdout == nil {
a := new(widget.Action)
a.ProgName = "stdout"
a.WidgetType = widget.Stdout
a.WidgetId = -3
a.ParentId = 0
n := addNode(a)
me.logStdout = n
me.logStdout.tk.gocuiSize.w0 = maxX - 32
me.logStdout.tk.gocuiSize.h0 = maxY / 2
me.logStdout.tk.gocuiSize.w1 = me.logStdout.tk.gocuiSize.w0 + outputW
me.logStdout.tk.gocuiSize.h1 = me.logStdout.tk.gocuiSize.h0 + outputH
}
v, err := g.View("msg")
if v == nil {
log.Log(NOW, "makeoutputwindow() this is supposed to happen. v == nil", err)
} else {
log.Log(NOW, "makeoutputwindow() msg != nil. WTF now? err =", err)
}
// help, err := g.SetView("help", maxX-32, 0, maxX-1, 13, 0)
// v, err = g.SetView("msg", 3, 3, 30, 30, 0)
v, err = g.SetView("msg", maxX-32, maxY/2, maxX/2+outputW, maxY/2+outputH, 0)
if errors.Is(err, gocui.ErrUnknownView) {
log.Log(NOW, "makeoutputwindow() this is supposed to happen?", err)
}
if err != nil {
log.Log(NOW, "makeoutputwindow() create output window failed", err)
return nil
}
if v == nil {
log.Log(NOW, "makeoutputwindow() msg == nil. WTF now? err =", err)
return nil
} else {
me.logStdout.tk.v = v
}
v.Clear()
v.SelBgColor = gocui.ColorCyan
v.SelFgColor = gocui.ColorBlack
fmt.Fprintln(v, "figure out how to capture STDOUT to here\n"+stringFromMouseClick)
g.SetViewOnBottom("msg")
// g.SetViewOnBottom(v.Name())
return v
}

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// LICENSE: same as the go language itself
// Copyright 2023 WIT.COM
// all structures and variables are local (aka lowercase)
// since the plugin should be isolated to access only
// by functions() to insure everything here is run
// inside a dedicated goroutine
package main
import (
"fmt"
"github.com/awesome-gocui/gocui"
"reflect"
"strconv"
"strings"
"sync"
"go.wit.com/log"
)
// It's probably a terrible idea to call this 'me'
var me config
var showDebug bool = true
var showHelp bool = true
var redoWidgets bool = true
// This is the window that is currently active
var currentWindow *node
type config struct {
baseGui *gocui.Gui // the main gocui handle
rootNode *node // the base of the binary tree. it should have id == 0
ctrlDown *node // shown if you click the mouse when the ctrl key is pressed
currentWindow *node // this is the current tab or window to show
logStdout *node // where to show STDOUT
helpLabel *gocui.View
ddview *node // the gocui view to select dropdrown lists
ddClicked bool // the dropdown menu view was clicked
ddNode *node // the dropdown menu is for this widget
/*
// this is the channel we send user events like
// mouse clicks or keyboard events back to the program
callback chan toolkit.Action
// this is the channel we get requests to make widgets
pluginChan chan toolkit.Action
*/
// When the widget has a frame, like a button, it adds 2 lines runes on each side
// so you need 3 char spacing in each direction to not have them overlap
// the amount of padding when there is a frame
FramePadW int `default:"1" dense:"0"`
FramePadH int `default:"1" dense:"0"`
PadW int `default:"1" dense:"0"`
PadH int `default:"1" dense:"0"`
// how far down to start Window or Tab headings
WindowW int `default:"8" dense:"0"`
WindowH int `default:"-1"`
TabW int `default:"5" dense:"0"`
TabH int `default:"1" dense:"0"`
// additional amount of space to put between window & tab widgets
WindowPadW int `default:"8" dense:"0"`
TabPadW int `default:"4" dense:"0"`
// additional amount of space to indent on a group
GroupPadW int `default:"6" dense:"2"`
// the raw beginning of each window (or tab)
RawW int `default:"1"`
RawH int `default:"5"`
// offset for the hidden widgets
FakeW int `default:"20"`
padded bool // add space between things like buttons
bookshelf bool // do you want things arranged in the box like a bookshelf or a stack?
canvas bool // if set to true, the windows are a raw canvas
menubar bool // for windows
stretchy bool // expand things like buttons to the maximum size
margin bool // add space around the frames of windows
// writeMutex protects locks the write process
writeMutex sync.Mutex
// used for listWidgets() debugging
depth int
}
// deprecate these
var (
initialMouseX, initialMouseY, xOffset, yOffset int
globalMouseDown, msgMouseDown, movingMsg bool
)
// this is the gocui way
// corner starts at in the upper left corner
type rectType struct {
w0, h0, w1, h1 int // left top right bottom
}
func (r *rectType) Width() int {
return r.w1 - r.w0
}
func (r *rectType) Height() int {
return r.h1 - r.h0
}
type guiWidget struct {
// the gocui package variables
v *gocui.View // this is nil if the widget is not displayed
cuiName string // what gocui uses to reference the widget
// the actual text to display in the console
label string
// the logical size of the widget
// For example, 40x12 would be the center of a normal terminal
// size rectType
// the actual gocui display view of this widget
// sometimes this isn't visible like with a Box or Grid
gocuiSize rectType
isCurrent bool // is this the currently displayed Window or Tab?
isFake bool // widget types like 'box' are 'false'
// used to track the size of grids
widths map[int]int // how tall each row in the grid is
heights map[int]int // how wide each column in the grid is
tainted bool
frame bool
// for a window, this is currently selected tab
selectedTab *node
// what color to use
color *colorT
}
// from the gocui devs:
// Write appends a byte slice into the view's internal buffer. Because
// View implements the io.Writer interface, it can be passed as parameter
// of functions like fmt.Fprintf, fmt.Fprintln, io.Copy, etc. Clear must
// be called to clear the view's buffer.
func (w *guiWidget) Write(p []byte) (n int, err error) {
w.tainted = true
me.writeMutex.Lock()
defer me.writeMutex.Unlock()
if me.logStdout.tk.v == nil {
// optionally write the output to /tmp
s := fmt.Sprint(string(p))
s = strings.TrimSuffix(s, "\n")
fmt.Fprintln(outf, s)
v, _ := me.baseGui.View("msg")
if v != nil {
// fmt.Fprintln(outf, "found msg")
me.logStdout.tk.v = v
}
} else {
// display the output in the gocui window
me.logStdout.tk.v.Clear()
s := fmt.Sprint(string(p))
s = strings.TrimSuffix(s, "\n")
tmp := strings.Split(s, "\n")
outputS = append(outputS, tmp...)
if len(outputS) > outputH {
l := len(outputS) - outputH
outputS = outputS[l:]
}
fmt.Fprintln(me.logStdout.tk.v, strings.Join(outputS, "\n"))
}
return len(p), nil
}
func Set(ptr interface{}, tag string) error {
if reflect.TypeOf(ptr).Kind() != reflect.Ptr {
log.Log(ERROR, "Set() Not a pointer", ptr, "with tag =", tag)
return fmt.Errorf("Not a pointer")
}
v := reflect.ValueOf(ptr).Elem()
t := v.Type()
for i := 0; i < t.NumField(); i++ {
defaultVal := t.Field(i).Tag.Get(tag)
name := t.Field(i).Name
// log("Set() try name =", name, "defaultVal =", defaultVal)
setField(v.Field(i), defaultVal, name)
}
return nil
}
func setField(field reflect.Value, defaultVal string, name string) error {
if !field.CanSet() {
// log("setField() Can't set value", field, defaultVal)
return fmt.Errorf("Can't set value\n")
} else {
log.Log(NOW, "setField() Can set value", name, defaultVal)
}
switch field.Kind() {
case reflect.Int:
val, _ := strconv.Atoi(defaultVal)
field.Set(reflect.ValueOf(int(val)).Convert(field.Type()))
case reflect.String:
field.Set(reflect.ValueOf(defaultVal).Convert(field.Type()))
case reflect.Bool:
if defaultVal == "true" {
field.Set(reflect.ValueOf(true))
} else {
field.Set(reflect.ValueOf(false))
}
}
return nil
}

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package main
// implements widgets 'Window' and 'Tab'
import (
"strings"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func (w *guiWidget) Width() int {
if w.frame {
return w.gocuiSize.w1 - w.gocuiSize.w0
}
return w.gocuiSize.w1 - w.gocuiSize.w0 - 1
}
func (w *guiWidget) Height() int {
if w.frame {
return w.gocuiSize.h1 - w.gocuiSize.h0
}
return w.gocuiSize.h1 - w.gocuiSize.h0 - 1
}
func (n *node) gocuiSetWH(sizeW, sizeH int) {
w := len(widget.GetString(n.value))
lines := strings.Split(widget.GetString(n.value), "\n")
h := len(lines)
tk := n.tk
if tk.isFake {
tk.gocuiSize.w0 = sizeW
tk.gocuiSize.h0 = sizeH
tk.gocuiSize.w1 = tk.gocuiSize.w0 + w + me.FramePadW
tk.gocuiSize.h1 = tk.gocuiSize.h0 + h + me.FramePadH
return
}
if tk.frame {
tk.gocuiSize.w0 = sizeW
tk.gocuiSize.h0 = sizeH
tk.gocuiSize.w1 = tk.gocuiSize.w0 + w + me.FramePadW
tk.gocuiSize.h1 = tk.gocuiSize.h0 + h + me.FramePadH
} else {
tk.gocuiSize.w0 = sizeW - 1
tk.gocuiSize.h0 = sizeH - 1
tk.gocuiSize.w1 = tk.gocuiSize.w0 + w + 1
tk.gocuiSize.h1 = tk.gocuiSize.h0 + h + 1
}
}
func redoWindows(nextW int, nextH int) {
for _, n := range me.rootNode.children {
if n.WidgetType != widget.Window {
continue
}
w := n.tk
var tabs bool
for _, child := range n.children {
if child.WidgetType == widget.Tab {
tabs = true
}
}
if tabs {
// window is tabs. Don't show it as a standard button
w.frame = false
n.hasTabs = true
} else {
w.frame = false
n.hasTabs = false
}
n.gocuiSetWH(nextW, nextH)
n.deleteView()
n.showView()
sizeW := w.Width() + me.WindowPadW
sizeH := w.Height()
nextW += sizeW
log.Log(NOW, "redoWindows() start nextW,H =", nextW, nextH, "gocuiSize.W,H =", sizeW, sizeH, n.progname)
if n.hasTabs {
n.redoTabs(me.TabW, me.TabH)
}
}
}
func (p *node) redoTabs(nextW int, nextH int) {
for _, n := range p.children {
if n.WidgetType != widget.Tab {
continue
}
w := n.tk
w.frame = true
n.gocuiSetWH(nextW, nextH)
n.deleteView()
// setCurrentTab(n)
// if (len(w.cuiName) < 4) {
// w.cuiName = "abcd"
// }
n.showView()
sizeW := w.Width() + me.TabPadW
sizeH := w.Height()
log.Log(NOW, "redoTabs() start nextW,H =", nextW, nextH, "gocuiSize.W,H =", sizeW, sizeH, n.progname)
nextW += sizeW
}
}

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package main
import (
"bufio"
"errors"
"fmt"
"strings"
"github.com/awesome-gocui/gocui"
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func splitLines(s string) []string {
var lines []string
sc := bufio.NewScanner(strings.NewReader(s))
for sc.Scan() {
lines = append(lines, sc.Text())
}
return lines
}
func (n *node) textResize() bool {
w := n.tk
var width, height int = 0, 0
var changed bool = false
for i, s := range splitLines(n.tk.label) {
log.Log(INFO, "textResize() len =", len(s), i, s)
if width < len(s) {
width = len(s)
}
height += 1
}
if w.gocuiSize.w1 != w.gocuiSize.w0+width+me.FramePadW {
w.gocuiSize.w1 = w.gocuiSize.w0 + width + me.FramePadW
changed = true
}
if w.gocuiSize.h1 != w.gocuiSize.h0+height+me.FramePadH {
w.gocuiSize.h1 = w.gocuiSize.h0 + height + me.FramePadH
changed = true
}
if changed {
n.showWidgetPlacement(true, "textResize() changed")
}
return changed
}
func (n *node) hideView() {
n.SetVisible(false)
}
// display's the text of the widget in gocui
// will create a new gocui view if there isn't one or if it has been moved
func (n *node) showView() {
var err error
w := n.tk
if w.cuiName == "" {
log.Log(ERROR, "showView() w.cuiName was not set for widget", w)
w.cuiName = string(n.WidgetId)
}
// if the gocui element doesn't exist, create it
if w.v == nil {
n.recreateView()
}
x0, y0, x1, y1, err := me.baseGui.ViewPosition(w.cuiName)
log.Log(INFO, "showView() w.v already defined for widget", n.progname, err)
// n.smartGocuiSize()
changed := n.textResize()
if changed {
log.Log(NOW, "showView() textResize() changed. Should recreateView here wId =", w.cuiName)
} else {
log.Log(NOW, "showView() Clear() and Fprint() here wId =", w.cuiName)
w.v.Clear()
fmt.Fprint(w.v, n.tk.label)
n.SetVisible(false)
n.SetVisible(true)
return
}
// if the gocui element has changed where it is supposed to be on the screen
// recreate it
if x0 != w.gocuiSize.w0 {
n.recreateView()
return
}
if y0 != w.gocuiSize.h0 {
log.Log(ERROR, "showView() start hight mismatch id=", w.cuiName, "gocui h vs computed h =", w.gocuiSize.h0, y0)
n.recreateView()
return
}
if x1 != w.gocuiSize.w1 {
log.Log(ERROR, "showView() too wide", w.cuiName, "w,w", w.gocuiSize.w1, x1)
n.recreateView()
return
}
if y1 != w.gocuiSize.h1 {
log.Log(ERROR, "showView() too high", w.cuiName, "h,h", w.gocuiSize.h1, y1)
n.recreateView()
return
}
n.SetVisible(true)
}
// create or recreate the gocui widget visible
// deletes the old view if it exists and recreates it
func (n *node) recreateView() {
var err error
w := n.tk
log.Log(ERROR, "recreateView() START", n.WidgetType, n.progname)
if me.baseGui == nil {
log.Log(ERROR, "recreateView() ERROR: me.baseGui == nil", w)
return
}
// this deletes the button from gocui
me.baseGui.DeleteView(w.cuiName)
w.v = nil
if n.progname == "CLOUDFLARE_EMAIL" {
n.showWidgetPlacement(true, "n.progname="+n.progname+" n.tk.label="+n.tk.label+" "+w.cuiName)
n.dumpWidget("jwc")
n.textResize()
n.showWidgetPlacement(true, "n.progname="+n.progname+" n.tk.label="+n.tk.label+" "+w.cuiName)
}
a := w.gocuiSize.w0
b := w.gocuiSize.h0
c := w.gocuiSize.w1
d := w.gocuiSize.h1
w.v, err = me.baseGui.SetView(w.cuiName, a, b, c, d, 0)
if err == nil {
n.showWidgetPlacement(true, "recreateView()")
log.Log(ERROR, "recreateView() internal plugin error err = nil")
return
}
if !errors.Is(err, gocui.ErrUnknownView) {
n.showWidgetPlacement(true, "recreateView()")
log.Log(ERROR, "recreateView() internal plugin error error.IS()", err)
return
}
// this sets up the keybinding for the name of the window
// does this really need to be done? I think we probably already
// know everything about where all the widgets are so we could bypass
// the gocui package and just handle all the mouse events internally here (?)
// for now, the w.v.Name is a string "1", "2", "3", etc from the widgetId
// set the binding for this gocui view now that it has been created
// gocui handles overlaps of views so it will run on the view that is clicked on
me.baseGui.SetKeybinding(w.v.Name(), gocui.MouseLeft, gocui.ModNone, click)
// this actually sends the text to display to gocui
w.v.Wrap = true
w.v.Frame = w.frame
w.v.Clear()
fmt.Fprint(w.v, n.tk.label)
// n.showWidgetPlacement(true, "n.progname=" + n.progname + " n.tk.label=" + n.tk.label + " " + w.cuiName)
// n.dumpWidget("jwc 2")
// if you don't do this here, it will be black & white only
if w.color != nil {
w.v.FrameColor = w.color.frame
w.v.FgColor = w.color.fg
w.v.BgColor = w.color.bg
w.v.SelFgColor = w.color.selFg
w.v.SelBgColor = w.color.selBg
}
if n.progname == "CLOUDFLARE_EMAIL" {
n.showWidgetPlacement(true, "n.progname="+n.progname+" n.tk.label="+n.tk.label+" "+w.cuiName)
n.dumpTree(true)
}
log.Log(ERROR, "recreateView() END")
}
func (n *node) hideWidgets() {
w := n.tk
w.isCurrent = false
switch n.WidgetType {
case widget.Root:
case widget.Flag:
case widget.Window:
case widget.Box:
case widget.Grid:
default:
n.hideView()
}
for _, child := range n.children {
child.hideWidgets()
}
}
func (n *node) hideFake() {
w := n.tk
if w.isFake {
n.hideView()
}
for _, child := range n.children {
child.hideFake()
}
}
func (n *node) showFake() {
w := n.tk
if w.isFake {
n.setFake()
n.showWidgetPlacement(true, "showFake:")
n.showView()
}
for _, child := range n.children {
child.showFake()
}
}
func (n *node) showWidgets() {
w := n.tk
if w.isFake {
// don't display by default
} else {
n.showWidgetPlacement(true, "current:")
n.showView()
}
for _, child := range n.children {
child.showWidgets()
}
}

139
widget.go Normal file
View File

@ -0,0 +1,139 @@
package main
import (
"go.wit.com/lib/widget"
"go.wit.com/log"
)
func initWidget(n *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)
if n.WidgetType == widget.Root {
log.Log(INFO, "setupWidget() FOUND ROOT w.id =", n.WidgetId)
n.WidgetId = 0
me.rootNode = n
return w
}
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
}
return w
}
func setupCtrlDownWidget() {
a := new(widget.Action)
a.ProgName = "ctrlDown"
a.WidgetType = widget.Dialog
a.WidgetId = -1
a.ParentId = 0
n := addNode(a)
me.ctrlDown = n
}
func (n *node) deleteView() {
w := n.tk
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
}
// searches the binary tree for a WidgetId
func (n *node) findWidgetName(name string) *node {
if n == nil {
return nil
}
if n.tk.cuiName == name {
return n
}
for _, child := range n.children {
newN := child.findWidgetName(name)
if newN != nil {
return newN
}
}
return nil
}
func (n *node) IsCurrent() bool {
w := n.tk
if n.WidgetType == widget.Tab {
return w.isCurrent
}
if n.WidgetType == widget.Window {
return w.isCurrent
}
if n.WidgetType == widget.Root {
return false
}
return n.parent.IsCurrent()
}
func (n *node) Visible() bool {
if n == nil {
return false
}
if n.tk == nil {
return false
}
if n.tk.v == nil {
return false
}
return n.tk.v.Visible
}
func (n *node) SetVisible(b bool) {
if n == nil {
return
}
if n.tk == nil {
return
}
if n.tk.v == nil {
return
}
n.tk.v.Visible = b
}
func addDropdown() *node {
n := new(node)
n.WidgetType = widget.Flag
n.WidgetId = -2
n.ParentId = 0
// copy the data from the action message
n.progname = "DropBox"
n.tk.label = "DropBox text"
// store the internal toolkit information
n.tk = new(guiWidget)
n.tk.frame = true
// set the name used by gocui to the id
n.tk.cuiName = "-1 dropbox"
n.tk.color = &colorFlag
// add this new widget on the binary tree
n.parent = me.rootNode
if n.parent != nil {
n.parent.children = append(n.parent.children, n)
}
return n
}