70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
// Package canvas contains all of the primitive CanvasObjects that make up a Fyne GUI.
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//
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// The types implemented in this package are used as building blocks in order
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// to build higher order functionality. These types are designed to be
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// non-interactive, by design. If additional functionality is required,
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// it's usually a sign that this type should be used as part of a custom
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// widget.
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package canvas // import "fyne.io/fyne/v2/canvas"
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import (
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"fyne.io/fyne/v2"
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)
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type baseObject struct {
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size fyne.Size // The current size of the canvas object
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position fyne.Position // The current position of the object
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Hidden bool // Is this object currently hidden
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min fyne.Size // The minimum size this object can be
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}
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// Hide will set this object to not be visible.
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func (o *baseObject) Hide() {
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o.Hidden = true
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}
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// MinSize returns the specified minimum size, if set, or {1, 1} otherwise.
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func (o *baseObject) MinSize() fyne.Size {
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if o.min.IsZero() {
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return fyne.Size{Width: 1, Height: 1}
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}
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return o.min
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}
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// Move the object to a new position, relative to its parent.
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func (o *baseObject) Move(pos fyne.Position) {
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o.position = pos
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}
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// Position gets the current position of this canvas object, relative to its parent.
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func (o *baseObject) Position() fyne.Position {
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return o.position
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}
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// Resize sets a new size for the canvas object.
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func (o *baseObject) Resize(size fyne.Size) {
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o.size = size
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}
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// SetMinSize specifies the smallest size this object should be.
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func (o *baseObject) SetMinSize(size fyne.Size) {
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o.min = size
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}
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// Show will set this object to be visible.
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func (o *baseObject) Show() {
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o.Hidden = false
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}
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// Size returns the current size of this canvas object.
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func (o *baseObject) Size() fyne.Size {
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return o.size
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}
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// Visible returns true if this object is visible, false otherwise.
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func (o *baseObject) Visible() bool {
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return !o.Hidden
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}
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