ui/eg/hello-world/main.go
Noah Petherbridge f9b305679a Tooltip Widget and Event Refactor
* Tooltip can be added to any target widget (e.g. Button) and pop up on
  mouse over.
* Refactor the event system. Instead of passing a render.Point to all
  event handlers, pass an EventData struct which can hold the Point or
  the render.Engine.
* Add event types Computed and Present, so a widget can set a handler on
  whenever its Computed or Present method is called.
2020-03-09 17:13:33 -07:00

52 lines
897 B
Go

package main
import (
"fmt"
"git.kirsle.net/go/render"
"git.kirsle.net/go/ui"
)
func main() {
mw, err := ui.NewMainWindow("Hello World")
if err != nil {
panic(err)
}
mw.SetBackground(render.White)
// Draw a label.
label := ui.NewLabel(ui.Label{
Text: "Hello, world!",
Font: render.Text{
FontFilename: "../DejaVuSans.ttf",
Size: 32,
Color: render.SkyBlue,
Shadow: render.SkyBlue.Darken(40),
},
})
mw.Pack(label, ui.Pack{
Side: ui.N,
PadY: 12,
})
// Draw a button.
button := ui.NewButton("My Button", ui.NewLabel(ui.Label{
Text: "Click me!",
Font: render.Text{
FontFilename: "../DejaVuSans.ttf",
Size: 12,
Color: render.Red,
Padding: 4,
},
}))
button.Handle(ui.Click, func(ed ui.EventData) {
fmt.Println("I've been clicked!")
})
mw.Pack(button, ui.Pack{
Side: ui.N,
})
mw.MainLoop()
}