first commit

ui/layout/centerpadlayout.go

@@ -0,0 +1,39 @@
+package layout
+
+import (
+	"fyne.io/fyne/v2"
+)
+
+var _ fyne.Layout = (*CenterPadLayout)(nil)
+
+type CenterPadLayout struct {
+	PadLeftRight float32
+	PadTopBottom float32
+}
+
+// only supports one object
+func (c *CenterPadLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
+	if len(objects) == 0 {
+		return fyne.NewSize(0, 0)
+	}
+	return fyne.Size{
+		Width:  objects[0].MinSize().Width + c.PadLeftRight*2,
+		Height: objects[0].MinSize().Height + c.PadTopBottom*2,
+	}
+}
+
+func (c *CenterPadLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
+	if len(objects) == 0 {
+		return
+	}
+	objSize := objects[0].MinSize()
+	xOffs := (size.Width - objSize.Width) / 2
+	yOffs := (size.Height - objSize.Height) / 2
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+		child.Move(fyne.NewPos(xOffs, yOffs))
+		child.Resize(child.MinSize())
+	}
+}

ui/layout/vboxcustompadding.go

@@ -0,0 +1,50 @@
+package layout
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/theme"
+)
+
+var _ fyne.Layout = (*VboxCustomPadding)(nil)
+
+type VboxCustomPadding struct {
+	ExtraPad float32
+}
+
+func (v *VboxCustomPadding) MinSize(objects []fyne.CanvasObject) fyne.Size {
+	minSize := fyne.NewSize(0, 0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+
+		minSize.Width = fyne.Max(child.MinSize().Width, minSize.Width)
+		minSize.Height += child.MinSize().Height
+	}
+	minSize.Height += (theme.Padding() + v.ExtraPad) * float32(len(objects)-1)
+	return minSize
+}
+
+func (v *VboxCustomPadding) Layout(objects []fyne.CanvasObject, size fyne.Size) {
+	total := float32(0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+		total += child.MinSize().Height
+	}
+
+	x, y := float32(0), float32(0)
+
+	extra := float32(0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+		height := child.MinSize().Height
+		child.Move(fyne.NewPos(x, y+extra))
+		y += height
+		child.Resize(fyne.NewSize(size.Width, height))
+		extra += (theme.Padding() + v.ExtraPad)
+	}
+}