initial commit

README.md

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+# gadgets
+
+Package gadgets are special collections of widgets
+
+Things to avoid or keep in mind: Also Features these might enable:
+
+```go
+* These should never bypass the binary tree
+* Hide complexity internally here
+* These might require corresponding toolkit implementations?
+* These might allow unique/good corresponding toolkit implementations (date/time selection?)
+
+## Warning
+
+Doing this / adding these might be a really bad idea that I will regret later

basicCombobox.go

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+/*
+	A Labeled Combobox widget:
+
+	-----------------------------
+	|            |              |
+	|   Food:    |  <dropdown>  |
+	|            |              |
+	-----------------------------
+
+	The user can then edit the dropdown field and type anything into it
+*/
+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+type BasicCombobox struct {
+	ready	bool
+	name	string
+
+	parent	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	d	*gui.Node	// dropdown widget
+
+	value	string
+	label	string
+
+	Custom func()
+}
+
+func (d *BasicCombobox) Get() string {
+	if ! d.Ready() {return ""}
+	return d.value
+}
+
+// Returns true if the status is valid
+func (d *BasicCombobox) Ready() bool {
+	if d == nil {return false}
+	return d.ready
+}
+
+func (d *BasicCombobox) Add(value string) {
+	if ! d.Ready() {return}
+	log.Println("BasicCombobox.Add() =", value)
+	d.d.AddDropdownName(value)
+	return
+}
+
+func (d *BasicCombobox) Set(value string) bool {
+	if ! d.Ready() {return false}
+	log.Println("BasicCombobox.Set() =", value)
+	d.d.SetText(value)
+	d.value = value
+	return true
+}
+
+func NewBasicCombobox(p *gui.Node, name string) *BasicCombobox {
+	d := BasicCombobox {
+		parent: p,
+		name: name,
+		ready: false,
+	}
+
+	// various timeout settings
+	d.l = p.NewLabel(name)
+	d.d = p.NewCombobox("")
+	d.d.Custom = func() {
+		d.value = d.Get()
+		log.Println("BasicCombobox.Custom() user changed value to =", d.value)
+		if d.Custom != nil {
+			d.Custom()
+		}
+	}
+
+	d.ready = true
+	return &d
+}

basicDropdown.go

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+/*
+	A Labeled Dropdown widget:
+
+	-----------------------------
+	|            |              |
+	|   Food:    |  <dropdown>  |
+	|            |              |
+	-----------------------------
+
+	This being a 'Basic Dropdown', the dropdown names must be unique
+*/
+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+type BasicDropdown struct {
+	ready	bool
+	name	string
+
+	parent	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	d	*gui.Node	// dropdown widget
+
+	value	string
+	label	string
+
+	Custom func()
+}
+
+func (d *BasicDropdown) Get() string {
+	if ! d.Ready() {return ""}
+	return d.d.GetText()
+}
+
+// Returns true if the status is valid
+func (d *BasicDropdown) Ready() bool {
+	if d == nil {return false}
+	return d.ready
+}
+
+func (d *BasicDropdown) Add(value string) {
+	if ! d.Ready() {return}
+	log.Println("BasicDropdown.Set() =", value)
+	d.d.AddDropdownName(value)
+	return
+}
+
+func (d *BasicDropdown) Set(value string) bool {
+	if ! d.Ready() {return false}
+	log.Println("BasicDropdown.Set() =", value)
+	d.l.SetText(value)
+	d.value = value
+	return true
+}
+
+func NewBasicDropdown(p *gui.Node, name string) *BasicDropdown {
+	d := BasicDropdown {
+		parent: p,
+		name: name,
+		ready: false,
+	}
+
+	// various timeout settings
+	d.l = p.NewLabel(name)
+	d.d = p.NewDropdown("")
+	d.d.Custom = func() {
+		d.value = d.Get()
+		log.Println("BasicDropdown.Custom() user changed value to =", d.value)
+		if d.Custom != nil {
+			d.Custom()
+		}
+	}
+
+	d.ready = true
+	return &d
+}

basicEntry.go

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+/*
+	A Labeled Single Line Entry widget:
+
+	-----------------------------
+	|            |              |
+	|   Food:    |  <type here> |
+	|            |              |
+	-----------------------------
+*/
+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+type BasicEntry struct {
+	parent	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	v	*gui.Node	// value widget
+
+	value	string
+	label	string
+
+	Custom func()
+}
+
+func (n *BasicEntry) Get() string {
+	return n.value
+}
+
+func (n *BasicEntry) Set(value string) *BasicEntry {
+	log.Println("BasicEntry.Set() =", value)
+	if (n.v != nil) {
+		n.v.Set(value)
+	}
+	n.value = value
+	return n
+}
+
+func NewBasicEntry(p *gui.Node, name string) *BasicEntry {
+	d := BasicEntry {
+		parent: p,
+		value: "",
+	}
+
+	// various timeout settings
+	d.l = p.NewLabel(name)
+	d.v = p.NewEntryLine("")
+	d.v.Custom = func() {
+		d.value = d.v.S
+		log.Println("BasicEntry.Custom() user changed value to =", d.value)
+	}
+
+	return &d
+}

basicLabel.go

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+/*
+	A Labeled label:
+
+	-----------------------------
+	|            |              |
+	|   Food:    |    Apple     |
+	|            |              |
+	-----------------------------
+*/
+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+type Node gui.Node
+
+type BasicLabel struct {
+	p	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	v	*gui.Node	// value widget
+
+	value	string
+	label	string
+
+	Custom func()
+}
+
+func (n *BasicLabel) Get() string {
+	return n.value
+}
+
+func (n *BasicLabel) Set(value string) *BasicLabel {
+	log.Println("BasicLabel.Set() =", value)
+	if (n.v != nil) {
+		n.v.Set(value)
+	}
+	n.value = value
+	return n
+}
+
+func (ngui *Node) NewBasicLabel(name string) *BasicLabel {
+	var n *gui.Node
+	n = (*gui.Node)(ngui)
+	d := BasicLabel {
+		p: n,
+		value: "",
+	}
+
+	// various timeout settings
+	d.l = n.NewLabel(name)
+	d.v = n.NewLabel("")
+	d.v.Custom = func() {
+		d.value = d.v.S
+		log.Println("BasicLabel.Custom() user changed value to =", d.value)
+	}
+
+	return &d
+}

durationSlider.go

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+/*
+	A slider that goes between a High and Low time
+*/
+
+package gadgets
+
+import 	(
+	"log"
+	"fmt"
+	"time"
+
+	"go.wit.com/gui/gui"
+)
+
+type Duration struct {
+	p	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	s	*gui.Node	// slider widget
+
+	Label	string
+	Low	time.Duration
+	High	time.Duration
+	Duration	time.Duration
+
+	Custom	func()
+}
+
+func (n *Duration) Set(d time.Duration) {
+	var timeRange, step, offset time.Duration
+
+	if (d > n.High) {
+		d = n.High
+	}
+	if (d < n.Low) {
+		d = n.Low
+	}
+
+	// set the duration
+	n.Duration = d
+
+	// figure out the integer offset for the Slider GUI Widget
+	timeRange = n.High - n.Low
+	step = timeRange / 1000
+	if (step == 0) {
+		log.Println("duration.Set() division by step == 0", n.Low, n.High, timeRange, step)
+		n.s.Set(0)
+		return
+	}
+	offset = d - n.Low
+	i := int(offset / step)
+	log.Println("duration.Set() =", n.Low, n.High, d, "i =", i)
+	n.s.I = i
+	n.s.Set(i)
+	n.s.Custom()
+}
+
+func NewDurationSlider(n *gui.Node, label string, low time.Duration, high time.Duration) *Duration {
+	d := Duration {
+		p: n,
+		Label: label,
+		High: high,
+		Low: low,
+	}
+
+	// various timeout settings
+	d.l = n.NewLabel(label)
+	d.s = n.NewSlider(label, 0, 1000)
+	d.s.Custom = func () {
+		d.Duration = low + (high - low) * time.Duration(d.s.I) / 1000
+		log.Println("d.Duration =", d.Duration)
+		s := fmt.Sprintf("%s (%v)", d.Label, d.Duration)
+		d.l.SetText(s)
+		if (d.Custom != nil) {
+			d.Custom()
+		}
+	}
+
+	return &d
+}

logSettings.go

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+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+var myLogGui *LogSettings
+
+type LogSettings struct {
+	ready		bool
+	hidden		bool
+	err		error
+
+	parent	*gui.Node // should be the root of the 'gui' package binary tree
+	window	*gui.Node // our window for displaying the log package settings
+	group	*gui.Node //
+	grid	*gui.Node //
+
+	// Primary Directives
+	status		*OneLiner
+	summary		*OneLiner
+}
+
+// This is initializes the main DO object
+// You can only have one of these
+func NewLogSettings(p *gui.Node) *LogSettings {
+	if myLogGui != nil {return myLogGui}
+	myLogGui = new(LogSettings)
+	myLogGui.parent = p
+
+	myLogGui.ready = false
+
+	myLogGui.window = p.NewWindow("Log Settings")
+
+	// make a group label and a grid
+	myLogGui.group = myLogGui.window.NewGroup("droplets:").Pad()
+	myLogGui.grid = myLogGui.group.NewGrid("grid", 2, 1).Pad()
+
+	myLogGui.ready = true
+	myLogGui.Hide()
+	return myLogGui
+}
+
+// Returns true if the status is valid
+func (d *LogSettings) Ready() bool {
+	if d == nil {return false}
+	return d.ready
+}
+
+func (d *LogSettings) Show() {
+	if ! d.Ready() {return}
+	log.Info("LogSettings.Show() window")
+	if d.hidden {
+		d.window.Show()
+	}
+	d.hidden = false
+}
+
+func (d *LogSettings) Hide() {
+	if ! d.Ready() {return}
+	log.Info("LogSettings.Hide() window")
+	if ! d.hidden {
+		d.window.Hide()
+	}
+	d.hidden = true
+}
+
+func (d *LogSettings) Update() bool {
+	if ! d.Ready() {return false}
+	return true
+}

oneLiner.go

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+/*
+	A Labeled label:
+
+	-----------------------------
+	|            |              |
+	|   Food:    |    Apple     |
+	|            |              |
+	-----------------------------
+*/
+package gadgets
+
+import 	(
+	"go.wit.com/log"
+	"go.wit.com/gui/gui"
+)
+
+type OneLiner struct {
+	p	*gui.Node	// parent widget
+	l	*gui.Node	// label widget
+	v	*gui.Node	// value widget
+
+	value	string
+	label	string
+
+	Custom func()
+}
+
+func (n *OneLiner) Get() string {
+	return n.value
+}
+
+func (n *OneLiner) Set(value string) *OneLiner {
+	log.Println("OneLiner.Set() =", value)
+	if (n.v != nil) {
+		n.v.Set(value)
+	}
+	n.value = value
+	return n
+}
+
+func NewOneLiner(n *gui.Node, name string) *OneLiner {
+	d := OneLiner {
+		p: n,
+		value: "",
+	}
+
+	// various timeout settings
+	d.l = n.NewLabel(name)
+	d.v = n.NewLabel("")
+	d.v.Custom = func() {
+		d.value = d.v.S
+		log.Println("OneLiner.Custom() user changed value to =", d.value)
+	}
+
+	return &d
+}