40 lines
854 B
Go
40 lines
854 B
Go
package layout
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import (
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"fyne.io/fyne/v2"
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)
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var _ fyne.Layout = (*CenterPadLayout)(nil)
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type CenterPadLayout struct {
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PadLeftRight float32
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PadTopBottom float32
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}
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// only supports one object
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func (c *CenterPadLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
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if len(objects) == 0 {
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return fyne.NewSize(0, 0)
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}
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return fyne.Size{
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Width: objects[0].MinSize().Width + c.PadLeftRight*2,
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Height: objects[0].MinSize().Height + c.PadTopBottom*2,
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}
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}
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func (c *CenterPadLayout) 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 := objects[0].MinSize()
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xOffs := (size.Width - objSize.Width) / 2
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yOffs := (size.Height - objSize.Height) / 2
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for _, child := range objects {
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if !child.Visible() {
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continue
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}
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child.Move(fyne.NewPos(xOffs, yOffs))
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child.Resize(child.MinSize())
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}
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}
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