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Return err from Application.Run

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This commit is contained in:
Sasha Koshka 2022-11-06 14:47:37 -05:00
parent b773ba6fc6
commit f6b8d9903b
2 changed files with 10 additions and 29 deletions
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36
application.go
View File

@ -21,7 +21,11 @@ func (application *Application) SetTitle (title string) {
application.backend.SetTitle(title)
}
func (application *Application) Run (callback func (application *Application)) {
func (application *Application) Run (
callback func (application *Application),
) (
err error,
) {
// default values for certain parameters
width, height := application.Size()
if width < 1 { width = 80 }
@ -38,11 +42,11 @@ func (application *Application) Run (callback func (application *Application)) {
application.config.padding = 4
// TODO: instead, return the error
var err error
application.backend, err = instantiateBackend(application)
if err != nil { panic(err.Error()) }
if err != nil { return }
application.backend.Run(callback)
return
}
func (application *Application) Await (timeout time.Duration) (keepRunning bool) {
@ -69,27 +73,3 @@ func (application *Application) Resized () (resized bool) {
resized = application.backend.Resized()
return
}
// // updateWindowSize updates the window size according to the buffer size.
// func (application *Application) updateWindowSize () {
// if application.window == nil { return }
// application.window.SetBounds(application.calculateWindowSize())
// }
// updateBufferSize updats the buffer size according to the window size.
// func (application *Application) updateBufferSize () {
// if application.window == nil {
// panic("call to application.updateBufferSize before window exists")
// }
//
// windowBounds := application.window.Bounds().Max
//
// if windowBounds != application.previousBounds {
// application.previousBounds = windowBounds
// application.boundsDirty = true
// application.DamageBuffer.SetSize (
// int(windowBounds.X) / application.metrics.cellWidth,
// int(windowBounds.Y) / application.metrics.cellHeight)
// }
// }

3
examples/hello/main.go
View File

@ -7,7 +7,8 @@ import _ "git.tebibyte.media/sashakoshka/stone/backends/pixel"
func main () {
application := stone.Application { }
application.Run(run)
err := application.Run(run)
if err != nil { panic(err) }
}
func run (application *stone.Application) {