41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
package layouts
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import (
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/layout"
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"fyne.io/fyne/v2/theme"
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)
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type LeftMiddleRightLayout struct {
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middleWidth float32
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hbox fyne.Layout
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}
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func NewLeftMiddleRightLayout(middleWidth float32) *LeftMiddleRightLayout {
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return &LeftMiddleRightLayout{
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middleWidth: middleWidth,
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hbox: layout.NewHBoxLayout(),
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}
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}
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func (b *LeftMiddleRightLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
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hboxSize := b.hbox.MinSize(objects)
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return fyne.Size{
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Height: hboxSize.Height,
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Width: hboxSize.Width + fyne.Max(0, b.middleWidth-objects[1].MinSize().Width),
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}
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}
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func (b *LeftMiddleRightLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
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midW := fyne.Max(b.middleWidth, objects[1].MinSize().Width)
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lrW := (size.Width - midW - theme.Padding()*4) / 2
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objects[0].Resize(fyne.NewSize(lrW, size.Height))
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objects[0].Move(fyne.NewPos(theme.Padding(), 0))
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objects[1].Resize(fyne.NewSize(midW, size.Height))
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objects[1].Move(fyne.NewPos(lrW+theme.Padding()*2, 0))
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if objects[2] != nil {
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objects[2].Resize(fyne.NewSize(lrW, size.Height))
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objects[2].Move(fyne.NewPos(lrW+midW+theme.Padding()*3, 0))
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}
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}
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