45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
package layouts
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import "fyne.io/fyne/v2"
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// Centers and pads a given item by a percent (0-1)
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// of the width and height that should be taken by the objects
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type PercentPadLayout struct {
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LeftRightObjectPercent float32
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TopBottomObjectPercent float32
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}
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func (l *PercentPadLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
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var objMinSize fyne.Size
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for _, obj := range objects {
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objMinSize = objMinSize.Max(obj.MinSize())
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}
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if objMinSize.IsZero() {
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return objMinSize
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}
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return fyne.Size{
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Width: objMinSize.Width / l.LeftRightObjectPercent,
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Height: objMinSize.Height / l.LeftRightObjectPercent,
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}
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}
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func (l *PercentPadLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
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if len(objects) == 0 {
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return
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}
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objSize := fyne.NewSize(
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size.Width*l.LeftRightObjectPercent,
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size.Height*l.TopBottomObjectPercent,
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)
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objPos := fyne.NewPos(
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size.Width*(1-l.LeftRightObjectPercent)/2,
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size.Height*(1-l.TopBottomObjectPercent)/2,
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)
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for _, obj := range objects {
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obj.Resize(objSize)
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obj.Move(objPos)
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}
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}
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