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Bit of refactoring of the horizontal layout

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This commit is contained in:
Sasha Koshka 2023-01-17 15:31:59 -05:00
parent 99492874ca
commit b7fe28f600
2 changed files with 34 additions and 44 deletions
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2
examples/horizontalLayout/main.go
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@ -10,7 +10,7 @@ func main () {
}
func run () {
window, _ := tomo.NewWindow(256, 2)
window, _ := tomo.NewWindow(360, 2)
window.SetTitle("horizontal stack")
container := basic.NewContainer(layouts.Horizontal { true, true })

76
layouts/horizontal.go
View File

@ -22,26 +22,8 @@ func (layout Horizontal) Arrange (entries []tomo.LayoutEntry, width, height int)
width -= theme.Padding() * 2
height -= theme.Padding() * 2
}
freeSpace := width
expandingElements := 0
// count the number of expanding elements and the amount of free space
// for them to collectively occupy
for index, entry := range entries {
if entry.Expand {
expandingElements ++
} else {
entryMinWidth, _ := entry.MinimumSize()
freeSpace -= entryMinWidth
}
if index > 0 && layout.Gap {
freeSpace -= theme.Padding()
}
}
expandingElementWidth := 0
if expandingElements > 0 {
expandingElementWidth = freeSpace / expandingElements
}
// get width of expanding elements
expandingElementWidth := layout.expandingElementWidth(entries, width)
x, y := 0, 0
if layout.Pad {
@ -99,31 +81,11 @@ func (layout Horizontal) MinimumHeightFor (
) (
height int,
) {
// TODO: maybe put calculating the expanding element width in a separate
// method
if layout.Pad {
width -= theme.Padding() * 2
}
freeSpace := width
expandingElements := 0
// count the number of expanding elements and the amount of free space
// for them to collectively occupy
for index, entry := range entries {
if entry.Expand {
expandingElements ++
} else {
entryMinWidth, _ := entry.MinimumSize()
freeSpace -= entryMinWidth
}
if index > 0 && layout.Gap {
freeSpace -= theme.Padding()
}
}
expandingElementWidth := 0
if expandingElements > 0 {
expandingElementWidth = freeSpace / expandingElements
width -= theme.Padding() * 2
}
// get width of expanding elements
expandingElementWidth := layout.expandingElementWidth(entries, width)
x, y := 0, 0
if layout.Pad {
@ -151,3 +113,31 @@ func (layout Horizontal) MinimumHeightFor (
}
return
}
func (layout Horizontal) expandingElementWidth (
entries []tomo.LayoutEntry,
freeSpace int,
) (
width int,
) {
expandingElements := 0
// count the number of expanding elements and the amount of free space
// for them to collectively occupy
for index, entry := range entries {
if entry.Expand {
expandingElements ++
} else {
entryMinWidth, _ := entry.MinimumSize()
freeSpace -= entryMinWidth
}
if index > 0 && layout.Gap {
freeSpace -= theme.Padding()
}
}
if expandingElements > 0 {
width = freeSpace / expandingElements
}
return
}