81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
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package layout
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import "fyne.io/fyne/v2"
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// SpacerObject is any object that can be used to space out child objects
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type SpacerObject interface {
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ExpandVertical() bool
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ExpandHorizontal() bool
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}
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// Spacer is any simple object that can be used in a box layout to space
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// out child objects
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type Spacer struct {
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FixHorizontal bool
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FixVertical bool
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size fyne.Size
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pos fyne.Position
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hidden bool
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}
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// NewSpacer returns a spacer object which can fill vertical and horizontal
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// space. This is primarily used with a box layout.
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func NewSpacer() fyne.CanvasObject {
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return &Spacer{}
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}
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// ExpandVertical returns whether or not this spacer expands on the vertical axis
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func (s *Spacer) ExpandVertical() bool {
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return !s.FixVertical
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}
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// ExpandHorizontal returns whether or not this spacer expands on the horizontal axis
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func (s *Spacer) ExpandHorizontal() bool {
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return !s.FixHorizontal
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}
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// Size returns the current size of this Spacer
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func (s *Spacer) Size() fyne.Size {
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return s.size
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}
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// Resize sets a new size for the Spacer - this will be called by the layout
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func (s *Spacer) Resize(size fyne.Size) {
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s.size = size
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}
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// Position returns the current position of this Spacer
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func (s *Spacer) Position() fyne.Position {
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return s.pos
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}
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// Move sets a new position for the Spacer - this will be called by the layout
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func (s *Spacer) Move(pos fyne.Position) {
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s.pos = pos
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}
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// MinSize returns a 0 size as a Spacer can shrink to no actual size
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func (s *Spacer) MinSize() fyne.Size {
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return fyne.NewSize(0, 0)
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}
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// Visible returns true if this spacer should affect the layout
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func (s *Spacer) Visible() bool {
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return !s.hidden
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}
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// Show sets the Spacer to be part of the layout calculations
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func (s *Spacer) Show() {
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s.hidden = false
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}
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// Hide removes this Spacer from layout calculations
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func (s *Spacer) Hide() {
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s.hidden = true
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}
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// Refresh does nothing for a spacer but is part of the CanvasObject definition
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func (s *Spacer) Refresh() {
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}
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