addText.go


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package gui

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

// tracks dropdown and combobox entries. Makes sure they are unique
func (n *Node) addText(newS string) {
	var highest int
	for s, i := range n.strings {
		if i > highest { highest = i }
		if s == newS {
			return
		}
	}
	n.strings[newS] = highest + 1 // TODO: use the int's for the order
	n.value = newS
	/*
	// time.Sleep(time.Duration(1000 * time.Nanosecond)) // doesn't work
	// maybe this stupid chipset is defective. TODO: try on different hardware
	// tried with go 1.21.4 debian sid
	mylock.Lock()
	n.mu.Lock()
	// time.Sleep(time.Duration(10 * time.Microsecond)) // doesn't work
	time.Sleep(time.Duration(100 * time.Microsecond)) // does work
	n.strings = append(n.strings, newS)
	n.mu.Unlock()
	mylock.Unlock()
	log.Warn("addText() has strings:", n.strings)
	*/

	// inform the toolkits
	sendAction(n, widget.AddText)
}

// add a new text string to widgets that support
// multiple string values
// These must be unique. return false if the string already exists
func (n *Node) AddText(str string) bool {
	if ! n.Ready() { return false }
	log.Warn("AddText() value =", str)
	log.Warn("AddText() value =", str)
	log.Warn("AddText() value =", str)

	// for some reason, the n.mu.Lock() doesn't seem to protect the append() function on strings
	// switched to a map. I suspect that is what maps are for because they are safer
	n.addText(str)
	return true
}