54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
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package layouts
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import "fyne.io/fyne/v2"
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// Implements: fyne.Layout
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type VarGridRows struct {
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rows int
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cfg []int
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}
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func NewVariableGridWithRows(cols int, cfg []int) *VarGridRows {
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return &VarGridRows{
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rows: cols,
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cfg: cfg,
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}
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}
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// Implements: fyne.Layout : 1
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func (v *VarGridRows) MinSize(objects []fyne.CanvasObject) fyne.Size {
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w, h := float32(0), float32(0)
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for i, o := range objects {
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childSize := o.MinSize()
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// NOTE: can be out-of-bounds error if not checked at creation
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takenRows := v.cfg[i]
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if takenRows > 1 {
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h += childSize.Height * float32(takenRows)
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} else {
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h += childSize.Height
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}
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if h+childSize.Height > h {
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w += childSize.Width
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}
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}
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return fyne.NewSize(w, h)
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}
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// Implements: fyne.Layout : 2
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func (v *VarGridRows) Layout(objects []fyne.CanvasObject, contSize fyne.Size) {
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// pos := fyne.NewPos(0, contSize.Height-v.MinSize(objects).Height)
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pos := fyne.NewPos(0, 0)
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cellHeightSingular := float64(contSize.Height) / float64(v.rows)
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cellWidth := contSize.Height
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for i, o := range objects {
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numRows := v.cfg[i]
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h := cellHeightSingular * float64(numRows)
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o.Move(pos)
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o.Resize(fyne.NewSize(cellWidth, float32(h)))
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pos = pos.Add(fyne.NewPos(0, float32(h)))
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}
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}
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