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app/hello: add explicit WindowOptions, extract message, color text

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Signed-off-by: Anthony Starks <ajstarks@gmail.com>
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-04-05 14:59:39 +02:00
parent b5d8e1cfe2
commit f4f3f9e640
1 changed files with 6 additions and 5 deletions
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apps/hello/hello.go
+6 -5
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@@ -20,8 +20,8 @@ import (
) )
func main() { func main() {
err := app.CreateWindow(nil) wopt := app.WindowOptions{Width: ui.Px(612), Height: ui.Px(792), Title: "Hello"}
if err != nil { if err := app.CreateWindow(&wopt); err != nil {
log.Fatal(err) log.Fatal(err)
} }
app.Main() app.Main()
@@ -43,15 +43,16 @@ func loop(w *app.Window) {
panic("failed to load font") panic("failed to load font")
} }
var faces measure.Faces var faces measure.Faces
black := &image.Uniform{color.Black} maroon := &image.Uniform{color.RGBA{127, 0, 0, 255}}
face := faces.For(regular, ui.Dp(50)) face := faces.For(regular, ui.Sp(72))
message := "Hello, Gio"
for w.IsAlive() { for w.IsAlive() {
e := <-w.Events() e := <-w.Events()
switch e := e.(type) { switch e := e.(type) {
case app.Draw: case app.Draw:
faces.Cfg = e.Config faces.Cfg = e.Config
cs := layout.ExactConstraints(w.Size()) cs := layout.ExactConstraints(w.Size())
root, _ := (text.Label{Src: black, Face: face, Text: "Hello, World!"}).Layout(cs) root, _ := (text.Label{Src: maroon, Face: face, Alignment: text.Center, Text: message}).Layout(cs)
w.Draw(root) w.Draw(root)
faces.Frame() faces.Frame()
} }