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tomo-old/examples/image/image.go
2023-03-16 14:22:56 -04:00

60 lines
1.5 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/layouts/basic"
import "git.tebibyte.media/sashakoshka/tomo/elements/basic"
import _ "git.tebibyte.media/sashakoshka/tomo/backends/all"
import "git.tebibyte.media/sashakoshka/tomo/elements/containers"
func main () {
tomo.Run(run)
}
func run () {
window, _ := tomo.NewWindow(2, 2)
window.SetTitle("Tomo Logo")
file, err := os.Open("assets/banner.png")
if err != nil { fatalError(err); return }
logo, _, err := image.Decode(file)
file.Close()
if err != nil { fatalError(err); return }
container := containers.NewContainer(basicLayouts.Vertical { true, true })
logoImage := basicElements.NewImage(logo)
button := basicElements.NewButton("Show me a gopher instead")
button.OnClick (func () { container.Warp (func () {
container.DisownAll()
gopher, _, err :=
image.Decode(bytes.NewReader(gopher.GopherPng()))
if err != nil { fatalError(err); return }
container.Adopt(basicElements.NewImage(gopher),true)
}) })
container.Adopt(logoImage, true)
container.Adopt(button, false)
window.Adopt(container)
button.Focus()
window.OnClose(tomo.Stop)
window.Show()
}
func fatalError (err error) {
popups.NewDialog (
popups.DialogKindError,
"Error",
err.Error(),
popups.Button {
Name: "OK",
OnPress: tomo.Stop,
})
}