tree/structs.go

package tree

/*
	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
*/

import (
	"go.wit.com/widget"
)

// TODO: use protocol buffers

// this is the root node of the binary tree
// There is only one of these per application
var treeRoot *Node

type TreeInfo struct {
	ok           bool                           // indicates the plugin actually initialized
	PluginName   string                         // used to identify the plugin
	config       *ToolkitConfigs                // protobuf of plugin settings
	callback     chan widget.Action             // mouse clicks or keyboard events back to the program
	pluginChan   chan widget.Action             // this is the channel we get requests to make widgets
	NodeAction   func(*Node, widget.ActionType) // deprecate
	Add          func(*Node)                    // add a new widget
	AddText      func(*Node, string)            // add a string to a dropdown widget
	SetText      func(*Node, string)            // set the text of a widget
	SetTitle     func(*Node, string)            // update the title of a window or tab
	SetLabel     func(*Node, string)            // update the "label" (aka "Name") for a widget
	SetChecked   func(*Node, bool)              // set the state of a checkbox
	ToolkitClose func()                         // shutdown and unload the plugin
	ShowTable    func(*Node)                    // attempt at sending a whole table
	// NodeI             interface{} // is an interface useful here?
}

type Node struct {
	Parent   *Node
	children []*Node

	WidgetId   int // widget ID
	WidgetType widget.WidgetType
	ParentId   int // parent ID

	State widget.State

	ddStrings []string

	// 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 any
}