GTK4Tools

Basic abstractions and widgets for gotk4 library

These abstractions are mainly intended to simplify certain methods and make them resemble the Fyne framework, which in my opinion are much more readable than certain default GTK4 methods.

Usage/Examples

You can use it in your project by importing it with

go get github.com/Tom5521/gtk4tools@latest

This library is to simplify gtk4 and avoid declaring unwanted variables that take up possible names for more useful variables.

Here is a Before/After of applying the library.

Before

type Person struct {
	Name string
	Age  uint
}

func activate(app *gtk.Application) {
	w := gtk.NewApplicationWindow(app)

	items := []Person{
		Person{
			Name: "Jonh Doe 1",
			Age:  21,
		},
		Person{
			Name: "Carlos Gimenez",
			Age:  26,
		},
		Person{
			Name: "Caroline Simpson",
			Age:  20,
		},
	}

	var personNames []string
	for _, p := range items {
		personNames = append(personNames, p.Name)
	}

	model := gtk.NewStringList(personNames)
	selectionModel := gtk.NewSingleSelection(model)
	selectionModel.ConnectSelectionChanged(func(_, _ uint) {
		fmt.Println("Index: ", selectionModel.Selected())
		fmt.Println("Value: ", items[selectionModel.Selected()])
	})

	factory := gtk.NewSignalListItemFactory()
	factory.ConnectSetup(func(listitem *glib.Object) {
		listitem.Cast().(*gtk.ListItem).SetChild(gtk.NewLabel(""))
	})
	factory.ConnectBind(func(listitem *gtk.ListItem) {
		obj := listitem.Cast().(*gtk.ListItem).Item().Cast().(*gtk.StringObject)
		listitem.Cast().(*gtk.ListItem).Child().(*gtk.Label).SetText(obj.String())
	})

	list := gtk.NewListView(selectionModel, &factory.ListItemFactory)

	w.SetChild(list)
	w.Show()
}

After

type Person struct {
	Name string
	Age  uint
}

func activate(app *gtk.Application) {
	w := gtk.NewApplicationWindow(app)

	items := []Person{
		Person{
			Name: "Jonh Doe 1",
			Age:  21,
		},
		Person{
			Name: "Carlos Gimenez",
			Age:  26,
		},
		Person{
			Name: "Caroline Simpson",
			Age:  20,
		},
	}

	list := widgets.NewList[Person](
		items,
		gtools.SelectionSingle,
		func(li gtools.ListItem) {
			li.SetChild(gtk.NewLabel(""))
		},
		func(li gtools.ListItem, p Person) {
			li.Child().(*gtk.Label).SetText(p.Name)
		},
	)
	list.ConnectSelected(func(index int) {
		fmt.Println("Index: ", index)
		fmt.Println("Value: ", items[index])
	})

	w.SetChild(list)
	w.Show()
}

You can test it by running go run -v ./examples/Boxes/main.go

Documentation

The documentation is here

It took some time to appear in pkg.go.dev

Note: it is better to clone the repository and use godoc on it, since pkg.go.dev takes a long time to index new versions.

License

MIT