diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
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+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/Makefile b/Makefile
index e9f03b9..afde483 100644
--- a/Makefile
+++ b/Makefile
@@ -1,18 +1,26 @@
-# go get -u github.com/faiface/pixel-examples
-# cd ~/go/src/github.com/faiface/pixel-examples/community/seascape-shader
+all: plugin
+ ldd ../pixelgl.so
-all:
- GO111MODULE=off go build
- ./seascape-shader
+plugin:
+ GO111MODULE=off go build -v -x -buildmode=plugin -o ../pixelgl.so
-push:
- git pull
- git add --all
- -git commit -a -s
- git push
+standalone:
+ GO111MODULE=off go install -v -x
+ pixelgl
-update:
- git pull
+check-git-clean:
+ @git diff-index --quiet HEAD -- || (echo "Git repository is dirty, please commit your changes first"; exit 1)
-diff:
- git diff
+# Test the README.md & doc.go file
+# this runs pkgsite, the binary that does dev.go.dev
+# go install golang.org/x/pkgsite/cmd/pkgsite@latest
+pkgsite:
+ pkgsite
+
+goimports:
+ goimports -w *.go
+
+redomod:
+ rm -f go.*
+ GO111MODULE= go mod init
+ GO111MODULE= go mod tidy
diff --git a/README.md b/README.md
index 7d1dea7..018b9ce 100644
--- a/README.md
+++ b/README.md
@@ -1,133 +1,5 @@
-# Shadertoy to Pixel shader conversion
+# nogui
-This will show you an example how you can take an example from [shadertoy.com](shadertoy.com) and use it with the Pixel Shader support.
+Package gui implements a abstraction layer for Go visual elements.
-["Seascape" by Alexander Alekseev aka TDM - 2014](https://www.shadertoy.com/view/Ms2SD1) is a nice one. It's very impressive and doesn't use textures so that simplifies things for us. Let's try that one.
-
-Looking at the seascape.glsl example you can see **iResolution**, **iTime** and **iMouse** in there.
-
-These are commonly needed to be exposed because these things are coming from outside and needs to be updated. Any other variable you need to have changed/updated from code can be exposed like those.
-
-## Command line arguments
-
-```
-./seascape-shader -h # will show you the command line options
-
-./seascape-shader -filename ./shaders/seascape.glsl # Seascape
-./seascape-shader -filename ./shaders/planetfall.glsl # Planet Fall demo
-```
-
-## Exposing variables
-
-How to expose variables like this?
-
-Well, first we need to figure out what type of variables they are. Looking at the shader, you can see **iResolution.x** in there. This tells you that it's not a simple type. In this case it's a **vec2***, a **Vector containing 2 values, x and y**. This makes sense since resolution is described by x and y. That is, width and height.
-
-And thus, we create our variable in Go with like so:
-```
-uResolution := mgl32.Vec2{float32(win.Bounds().W()), float32(win.Bounds().H())}
-```
-That is, to be of the type **mgl32.Vec2**. Here we create it by taking the window's width and height.
-
-**iTime** is just a float, and thus that is just created like so:
-```
-var uTime float32
-```
-
-For the **iMouse**, it's a **mgl32.Vec4**, a **Vector containing 4 variables**. We only use x and y for the mouse position here though.
-```
-var uMouse mgl32.Vec4
-```
-
-And finally, to make our variables available in the shader itself we use:
-```
-canvas.SetUniform(name string, value interface{})
-```
-
-We create a handy function to do this:
-
-``` go
-func EasyBindUniforms(c *pixelgl.Canvas, unifs ...interface{}) {
- if len(unifs)%2 != 0 {
- panic("needs to be divisable by 2")
- }
- for i := 0; i < len(unifs); i += 2 {
-
- c.SetUniform(unifs[i+0].(string), unifs[i+1])
- }
-}
-```
-and we call that function like so:
-
-``` go
- EasyBindUniforms(canvas,
- "uResolution", &uResolution,
- "uTime", &uTime,
- "uMouse", &uMouse,
- )
-```
-
-## Updating shader source file
-
-We also need to do some updates to the shader file itself to match these variables. First thing would be to add the variables we exposed in Go.
-
-```
-uniform vec2 uResolution;
-uniform float uTime;
-uniform vec4 uMouse;
-```
-Then we just rename the variables to match.
-
-We also need to rename the main function itself, as the one used here is specific for use with shadertoy. For our shader, the entrypoint is main(). So we rename:
-```
-void mainImage( out vec4 fragColor, in vec2 fragCoord )
-```
-to
-```
-void main() {
-```
-
-
-Also, rename:
-```
-fragCoord
-```
-to
-```
-gl_FragCoord
-```
-because this is available globaly in the OpenGL space for the shader.
-
-We also need to add:
-```
-out vec4 fragColor;
-```
-
-to expose that.
-
-Lastly, we need to add:
-```
-#version 330 core
-```
-at the top to tell what version we require.
-
-
-## Using shader
-To use the shader in our canvas we do:
-```
-canvas.SetFragmentShader(fragSource string)
-```
-where fragSource is the fragment shader, not a path fo a file.
-
-#
-
-## Result converting shadertoy shader to use with Pixel
-
-Here is a diff of the changes:
-
-
-
-
-And that is it. Running the program we should see this:
-
-
+This is a sample plugin. It's a skeleton intended to be used when making a new toolkit plugin.
diff --git a/action.go b/action.go
new file mode 100644
index 0000000..a4e5ee6
--- /dev/null
+++ b/action.go
@@ -0,0 +1,105 @@
+package main
+
+/*
+ a simple function to handle widget actions
+
+ You can tie this into your toolkit here.
+*/
+
+import (
+ "go.wit.com/log"
+ "go.wit.com/toolkits/tree"
+ "go.wit.com/widget"
+)
+
+func Add(n *tree.Node) {
+ log.Log(INFO, "Add() END =", n.WidgetType, n.String())
+ if n == nil {
+ log.Warn("Tree Error: Add() sent n == nil")
+ return
+ }
+ switch n.WidgetType {
+ case widget.Root:
+ me.treeRoot = n
+ log.Log(INFO, "Add() found treeRoot")
+ return
+ }
+
+ log.Log(INFO, "Add() END =", n.WidgetType, n.String())
+}
+
+func newaction(n *tree.Node, atype widget.ActionType) {
+ log.Log(INFO, "newaction() START", atype)
+ if n == nil {
+ log.Warn("Tree Error: Add() sent n == nil")
+ return
+ }
+ if n.TK == nil {
+ log.Warn("Tree sent an action on a widget we didn't seem to have.")
+ // do this init here again? Probably something
+ // went wrong and we should reset the our while gocui.View tree
+ // n.TK = initWidget(n)
+ }
+ // w := n.TK.(*guiWidget)
+ switch atype {
+ case widget.Show:
+ log.Log(NOW, "Show() HERE. a.Hidden() was =", n.Hidden())
+ // w.Show()
+ case widget.Hide:
+ log.Log(NOW, "Hide() HERE. a.State.Hidden was =", n.Hidden())
+ // w.Hide()
+ case widget.Move:
+ log.Log(NOW, "attempt to move() =", atype, n.WidgetType, n.ProgName())
+ case widget.Enable:
+ // w.enable = true
+ // w.enableColor()
+ case widget.Disable:
+ // w.enable = false
+ // w.disableColor()
+ case widget.Delete:
+ log.Info("newaction() DeleteNode()")
+ n.DeleteNode()
+ case widget.ToolkitClose:
+ log.Info("newaction() toolkit closed. are the channels cleand up?")
+ return
+ default:
+ log.Log(ERROR, "newaction() UNHANDLED Action Type =", atype, "WidgetType =", n.WidgetType, "Name =", n.ProgName())
+ }
+ log.Log(INFO, "newaction() END", atype, n.String())
+}
+
+func SetTitle(n *tree.Node, s string) {
+ SetText(n, s)
+}
+
+func SetLabel(n *tree.Node, s string) {
+ SetText(n, s)
+}
+
+func SetText(n *tree.Node, s string) {
+ if n == nil {
+ log.Warn("Tree Error: Add() sent n == nil")
+ return
+ }
+ if n.TK == nil {
+ log.Warn("Tree sent an action on a widget we didn't seem to have.")
+ return
+ }
+ // w := n.TK.(*guiWidget)
+ // w.SetText(s)
+ log.Info("SetText()", n.WidgetType, n.String())
+}
+
+func AddText(n *tree.Node, s string) {
+ if n == nil {
+ log.Warn("Tree Error: Add() sent n == nil")
+ return
+ }
+ if n.TK == nil {
+ log.Warn("Tree sent an action on a widget we didn't seem to have.")
+ return
+ }
+ log.Info("AddText()", n.WidgetType, n.String())
+ // w := n.TK.(*guiWidget)
+ // w.AddText(s)
+}
diff --git a/args.go b/args.go
new file mode 100644
index 0000000..88fcf53
--- /dev/null
+++ b/args.go
@@ -0,0 +1,30 @@
+package main
+
+/*
+ this enables command line options from other packages like 'gui' and 'log'
+*/
+
+import (
+ log "go.wit.com/log"
+)
+
+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", true, 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", true, full, short, "toolkit errors")
+}
diff --git a/config.go b/config.go
index da8313a..3c5fb11 100644
--- a/config.go
+++ b/config.go
@@ -1,6 +1,6 @@
package main
-/*
+/*
This simply parses the command line arguments using the default golang
package called 'flag'. This can be used as a simple template to parse
command line arguments in other programs.
@@ -10,11 +10,14 @@ package main
global variables
*/
-import "log"
-import "os"
-import "flag"
-import "fmt"
-import "github.com/gookit/config"
+import (
+ "flag"
+ "fmt"
+ "log"
+ "os"
+
+ "github.com/gookit/config"
+)
var customUsage = func() {
fmt.Fprintf(flag.CommandLine.Output(), "Usage of %s:\n", os.Args[0])
@@ -23,27 +26,27 @@ var customUsage = func() {
fmt.Println("")
fmt.Println("EXAMPLES:")
fmt.Println("")
- fmt.Println(os.Args[0] + " --width 1024 --height 768 --drift .1 --filename shaders/seascape.glsl")
- fmt.Println(os.Args[0] + " --width 640 --height 480 --filename shaders/planetfall.glsl")
+ fmt.Println(os.Args[0] + " --width 1024 --height 768 --drift .1 --filename seascape.glsl")
+ fmt.Println(os.Args[0] + " --width 640 --height 480 --filename planetfall.glsl")
fmt.Println("")
}
func parseFlags() {
- var version string
- var race bool
- var filename string
- var width int
- var height int
- var glDrift float64
+ var version string
+ var race bool
+ var filename string
+ var width int
+ var height int
+ var glDrift float64
- flag.StringVar (&version, "version", "v0.1", "Set compiled in version string")
+ flag.StringVar(&version, "version", "v0.1", "Set compiled in version string")
- flag.StringVar (&filename, "filename", "shaders/seascape.glsl", "path to GLSL file")
- flag.IntVar (&width, "width", 1024, "Width of the OpenGL Window")
- flag.IntVar (&height, "height", 768, "Height of the OpenGL Window")
+ flag.StringVar(&filename, "filename", "seascape.glsl", "path to GLSL file")
+ flag.IntVar(&width, "width", 1024, "Width of the OpenGL Window")
+ flag.IntVar(&height, "height", 768, "Height of the OpenGL Window")
- flag.Float64Var (&glDrift, "drift", 0.01, "Speed of the gradual camera drift")
- flag.BoolVar (&race, "race", race, "Use race detector")
+ flag.Float64Var(&glDrift, "drift", 0.01, "Speed of the gradual camera drift")
+ flag.BoolVar(&race, "race", race, "Use race detector")
// Set the output if something fails to stdout rather than stderr
flag.CommandLine.SetOutput(os.Stdout)
@@ -60,8 +63,8 @@ func parseFlags() {
// keys := []string{"filename", "width", "height", "drift"}
// keys := []string{"width", "height", "drift"}
-// keys := []string{"height"}
-// config.LoadFlags(keys)
+ // keys := []string{"height"}
+ // config.LoadFlags(keys)
config.Set("width", width)
config.Set("height", height)
diff --git a/event.go b/event.go
new file mode 100644
index 0000000..9fea1b0
--- /dev/null
+++ b/event.go
@@ -0,0 +1,51 @@
+package main
+
+/*
+import (
+ "go.wit.com/log"
+ "go.wit.com/widget"
+ "go.wit.com/toolkits/tree"
+)
+
+func doWidgetClick(n *tree.Node) {
+ switch n.WidgetType {
+ case widget.Root:
+ // THIS IS THE BEGINING OF THE LAYOUT
+ // rootNode.nextW = 0
+ // rootNode.nextH = 0
+ // rootNode.redoTabs(true)
+ case widget.Flag:
+ // me.rootNode.redoColor(true)
+ // rootNode.dumpTree(true)
+ case widget.Window:
+ // setCurrentWindow(w)
+ // n.doUserEvent()
+ case widget.Tab:
+ // setCurrentTab(w)
+ case widget.Group:
+ // n.placeWidgets()
+ // n.toggleTree()
+ case widget.Checkbox:
+ if n.Bool() {
+ // n.setCheckbox(false)
+ } else {
+ // n.setCheckbox(true)
+ }
+ // n.doUserEvent()
+ case widget.Grid:
+ // rootNode.hideWidgets()
+ // n.placeGrid()
+ // n.showWidgets()
+ case widget.Box:
+ // n.showWidgetPlacement(logNow, "drawTree()")
+ if n.Bool() {
+ log.Log(NOW, "BOX IS HORIZONTAL", n.GetProgName())
+ } else {
+ log.Log(NOW, "BOX IS VERTICAL", n.GetProgName())
+ }
+ case widget.Button:
+ // n.doUserEvent()
+ default:
+ }
+}
+*/
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..7e11f16
--- /dev/null
+++ b/main.go
@@ -0,0 +1,57 @@
+package main
+
+/*
+ This is reference code for toolkit developers
+
+ The 'nocui' is a bare minimum toolkit. It's all you need
+ to interact with the GUI
+*/
+
+import (
+ "embed"
+
+ "go.wit.com/log"
+ "go.wit.com/toolkits/tree"
+
+ "github.com/faiface/pixel/pixelgl"
+)
+
+//go:embed *.glsl
+var glFile embed.FS
+
+func init() {
+ log.Log(INFO, "Init()")
+
+ me.myTree = tree.New()
+ me.myTree.PluginName = "nocui"
+ // me.myTree.ActionFromChannel = doAction
+
+ me.myTree.NodeAction = newaction
+ me.myTree.Add = Add
+ me.myTree.SetTitle = SetTitle
+ me.myTree.SetLabel = SetLabel
+ me.myTree.SetText = SetText
+ me.myTree.AddText = AddText
+
+ me.exit = false
+
+ log.Log(INFO, "Init() END")
+
+ showOptions()
+
+ // This parses the command line arguments
+ parseConfig()
+
+ pixelgl.Run(run)
+
+ go simpleStdin()
+}
+
+// this must be defined for plugin's, but is never run
+// I assume it's for testing the code in a stand alone way
+func main() {
+ // This parses the command line arguments
+ parseConfig()
+
+ pixelgl.Run(run)
+}
diff --git a/psutil.go b/psutil.go
index 2fb370e..957e8dc 100644
--- a/psutil.go
+++ b/psutil.go
@@ -1,10 +1,12 @@
package main
import (
+ "io/fs"
"io/ioutil"
"github.com/faiface/pixel"
"github.com/faiface/pixel/pixelgl"
+ "go.wit.com/log"
)
// Pixel Shader utility functions
@@ -14,14 +16,13 @@ import (
//
// example:
//
-// var uTimeVar float32
-// var uMouseVar mgl32.Vec4
-//
-// EasyBindUniforms(win.GetCanvas(),
-// "u_time", &uTimeVar,
-// "u_mouse", &uMouseVar,
-// )
+// var uTimeVar float32
+// var uMouseVar mgl32.Vec4
//
+// EasyBindUniforms(win.GetCanvas(),
+// "u_time", &uTimeVar,
+// "u_mouse", &uMouseVar,
+// )
func EasyBindUniforms(c *pixelgl.Canvas, unifs ...interface{}) {
if len(unifs)%2 != 0 {
panic("needs to be divisable by 2")
@@ -46,7 +47,15 @@ func CenterWindow(win *pixelgl.Window) {
// LoadFileToString loads the contents of a file into a string
func LoadFileToString(filename string) (string, error) {
- b, err := ioutil.ReadFile(filename)
+ embedf, err1 := fs.ReadFile(glFile, filename)
+ if err1 == nil {
+ log.Println("found embedded file:", filename)
+ return string(embedf), nil
+ } else {
+ log.Println("did not find embedded file:", filename)
+ log.Println("err", err1)
+ }
+ b, err := ioutil.ReadFile("/tmp/" + filename)
if err != nil {
return "", err
}
diff --git a/seascape.go b/seascape.go
index abfee6e..0c830b3 100644
--- a/seascape.go
+++ b/seascape.go
@@ -5,20 +5,20 @@ import (
"github.com/go-gl/mathgl/mgl32"
+ "log"
+
"github.com/faiface/pixel"
"github.com/faiface/pixel/pixelgl"
+ "github.com/gookit/config"
"golang.org/x/image/colornames"
)
-import "log"
-import "github.com/gookit/config"
-
func run() {
// Set up window configs
log.Println("width = ", config.Int("width"), "height = ", config.String("height"))
cfg := pixelgl.WindowConfig{ // Default: 1024 x 768
Title: "Golang GLSL",
- Bounds: pixel.R(0, 0, config.Float("width"), config.Float("height")),
+ Bounds: pixel.R(0, 0, config.Float("width"), config.Float("height")),
VSync: true,
}
@@ -77,10 +77,3 @@ func run() {
}
}
-
-func main() {
- // This parses the command line arguments
- parseConfig()
-
- pixelgl.Run(run)
-}
diff --git a/stdin.go b/stdin.go
new file mode 100644
index 0000000..fc2f2e5
--- /dev/null
+++ b/stdin.go
@@ -0,0 +1,99 @@
+package main
+
+import (
+ "bufio"
+ "fmt"
+ "os"
+ "runtime/debug"
+ "strconv"
+ "strings"
+
+ "go.wit.com/log"
+ "go.wit.com/toolkits/tree"
+ "go.wit.com/widget"
+)
+
+func showOptions() {
+ fmt.Println("")
+ fmt.Println("Enter:")
+ fmt.Println("'l': list all widgets")
+ fmt.Println("'b': for buttons")
+ fmt.Println("'g': load gocui plugin")
+ fmt.Println("'a': load andlabs plugin")
+ fmt.Println("'d': enable debugging")
+ fmt.Println("'p': panic plugin")
+ fmt.Println("'q': close plugin")
+ fmt.Println("")
+ fmt.Println("Enter the number of the widget to click:")
+ fmt.Print("Option: ")
+ fmt.Fprintf(os.Stderr, "Option:\n")
+ fmt.Fprintf(os.Stderr, "Option: ")
+}
+
+func simpleStdin() {
+ defer func() {
+ if r := recover(); r != nil {
+ log.Warn("nocui YAHOOOO Recovered in simpleStdin()", r)
+ log.Println("Recovered from panic:", r)
+ log.Println("Stack trace:")
+ debug.PrintStack()
+ me.myTree.SendToolkitPanic()
+ os.Exit(0)
+ return
+ }
+ }()
+ scanner := bufio.NewScanner(os.Stdin)
+ for scanner.Scan() {
+ if me.exit {
+ return
+ }
+ s := scanner.Text()
+ s = strings.TrimSuffix(s, "\n")
+ switch s {
+ case "l":
+ log.Log(NOW, "list widgets")
+ tree.ListWidgets()
+ case "b":
+ log.Log(NOW, "show buttons")
+ tree.ShowButtons()
+ case "g":
+ me.myTree.SendToolkitLoad("gocui")
+ case "a":
+ me.myTree.SendToolkitLoad("andlabs")
+ case "d":
+ me.myTree.SendEnableDebugger()
+ case "p":
+ debug.PrintStack()
+ me.myTree.SendToolkitPanic()
+ os.Exit(0)
+ return
+ case "q":
+ return
+ case "":
+ showOptions()
+ default:
+ i, _ := strconv.Atoi(s)
+ log.Log(NOW, "got input:", i)
+ n := tree.FindWidgetId(i)
+ if n != nil {
+ n.DumpWidget("found node")
+ for i, s := range n.State.Strings {
+ log.Warn("n.State.Strings =", i, s)
+ }
+ switch n.WidgetType {
+ case widget.Root:
+ log.Warn("this is the root widget")
+ case widget.Dropdown:
+ log.Warn("print out dropdown values here")
+ case widget.Button:
+ me.myTree.SendUserEvent(n)
+ case widget.Checkbox:
+ me.myTree.SendUserEvent(n)
+ default:
+ log.Warn("you haven't defined an event for", n.WidgetType)
+ }
+ }
+ }
+ showOptions()
+ }
+}
diff --git a/structs.go b/structs.go
new file mode 100644
index 0000000..5416913
--- /dev/null
+++ b/structs.go
@@ -0,0 +1,24 @@
+package main
+
+import (
+ "go.wit.com/toolkits/tree"
+)
+
+// stores the raw toolkit internals
+type guiWidget struct {
+ Width int
+ Height int
+
+ c int
+ val map[string]int
+}
+
+// It's probably a terrible idea to call this 'me'
+var me toolkitConfig
+
+type toolkitConfig struct {
+ treeRoot *tree.Node // the base of the binary tree. it should have id == 0
+ myTree *tree.TreeInfo
+
+ exit bool
+}
diff --git a/tree.go b/tree.go
new file mode 100644
index 0000000..57f283a
--- /dev/null
+++ b/tree.go
@@ -0,0 +1,24 @@
+package main
+
+/*
+ This is reference code for toolkit developers
+*/
+
+import (
+ "go.wit.com/widget"
+)
+
+// 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) {
+ me.myTree.Callback(guiCallback)
+}
+
+func PluginChannel() chan widget.Action {
+ return me.myTree.PluginChannel()
+}