This repository has been archived on 2023-08-08. You can view files and clone it, but cannot push or open issues or pull requests.
tomo-old/examples/image/image.go
2023-04-18 16:18:30 -04:00

61 lines
1.4 KiB
Go

package main
import "os"
import "image"
import "bytes"
import _ "image/png"
import "github.com/jezek/xgbutil/gopher"
import "git.tebibyte.media/sashakoshka/tomo"
import "git.tebibyte.media/sashakoshka/tomo/popups"
import "git.tebibyte.media/sashakoshka/tomo/elements"
import _ "git.tebibyte.media/sashakoshka/tomo/backends/all"
func main () {
tomo.Run(run)
}
func run () {
window, _ := tomo.NewWindow(tomo.Bounds(0, 0, 0, 0))
window.SetTitle("Tomo Logo")
file, err := os.Open("assets/banner.png")
if err != nil { fatalError(window, err); return }
logo, _, err := image.Decode(file)
file.Close()
if err != nil { fatalError(window, err); return }
container := elements.NewVBox(elements.SpaceBoth)
logoImage := elements.NewImage(logo)
button := elements.NewButton("Show me a gopher instead")
button.OnClick (func () {
window.SetTitle("Not the Tomo Logo")
container.DisownAll()
gopher, _, err :=
image.Decode(bytes.NewReader(gopher.GopherPng()))
if err != nil { fatalError(window, err); return }
container.AdoptExpand(elements.NewImage(gopher))
})
container.AdoptExpand(logoImage)
container.Adopt(button)
window.Adopt(container)
button.Focus()
window.OnClose(tomo.Stop)
window.Show()
}
func fatalError (window tomo.Window, err error) {
popups.NewDialog (
popups.DialogKindError,
window,
"Error",
err.Error(),
popups.Button {
Name: "OK",
OnPress: tomo.Stop,
})
}