Add transparent centering to widget
This commit is contained in:
parent
e079f76157
commit
cbbec5bd18
@ -18,17 +18,53 @@ package widget
|
||||
|
||||
import (
|
||||
"maunium.net/go/tview"
|
||||
"maunium.net/go/tcell"
|
||||
)
|
||||
|
||||
// Center wraps the given tview primitive into a Flex element in order to
|
||||
// vertically and horizontally center the given primitive.
|
||||
func Center(width, height int, p tview.Primitive) tview.Primitive {
|
||||
return tview.NewFlex().
|
||||
AddItem(tview.NewBox(), 0, 1, false).
|
||||
AddItem(nil, 0, 1, false).
|
||||
AddItem(tview.NewFlex().
|
||||
SetDirection(tview.FlexRow).
|
||||
AddItem(tview.NewBox(), 0, 1, false).
|
||||
AddItem(nil, 0, 1, false).
|
||||
AddItem(p, height, 1, true).
|
||||
AddItem(tview.NewBox(), 0, 1, false), width, 1, true).
|
||||
AddItem(tview.NewBox(), 0, 1, false)
|
||||
AddItem(nil, 0, 1, false), width, 1, true).
|
||||
AddItem(nil, 0, 1, false)
|
||||
}
|
||||
|
||||
type transparentCenter struct {
|
||||
*tview.Box
|
||||
prefWidth, prefHeight int
|
||||
p tview.Primitive
|
||||
}
|
||||
|
||||
func TransparentCenter(width, height int, p tview.Primitive) tview.Primitive {
|
||||
return &transparentCenter{
|
||||
Box: tview.NewBox(),
|
||||
prefWidth: width,
|
||||
prefHeight: height,
|
||||
p: p,
|
||||
}
|
||||
}
|
||||
|
||||
func (tc *transparentCenter) Draw(screen tcell.Screen) {
|
||||
x, y, width, height := tc.GetRect()
|
||||
if width > tc.prefWidth {
|
||||
x += (width - tc.prefWidth) / 2
|
||||
width = tc.prefWidth
|
||||
}
|
||||
if height > tc.prefHeight {
|
||||
y += (height - tc.prefHeight) / 2
|
||||
height = tc.prefHeight
|
||||
}
|
||||
tc.p.SetRect(x, y, width, height)
|
||||
tc.p.Draw(screen)
|
||||
}
|
||||
|
||||
func (tc *transparentCenter) Focus(delegate func(p tview.Primitive)) {
|
||||
if delegate != nil {
|
||||
delegate(tc.p)
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user