Window now checks for minimum size on adopt

backends/x/window.go

@@ -153,6 +153,9 @@ func (window *window) Adopt (child tomo.Element) {
 		if ok && childEntity != nil {
 			window.child = childEntity
 			childEntity.setWindow(window)
+			window.setMinimumSize (
+				childEntity.minWidth,
+				childEntity.minHeight)
 			window.resizeChildToFit()
 		}
 	}

elements/checkbox.go

@@ -65,7 +65,6 @@ func (element *Checkbox) Enabled () bool {
 func (element *Checkbox) SetEnabled (enabled bool) {
 	if element.enabled == enabled { return }
 	element.enabled = enabled
-	if element.entity == nil { return }
 	element.entity.Invalidate()
 }
 
@@ -150,7 +149,6 @@ func (element *Checkbox) HandleMouseUp (x, y int, button input.Button) {
 }
 
 func (element *Checkbox) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
-	if element.entity == nil { return }
 	if key == input.KeyEnter {
 		element.pressed = true
 		element.entity.Invalidate()

elements/label.go

@@ -51,7 +51,6 @@ func (element *Label) Entity () tomo.Entity {
 func (element *Label) EmCollapse (columns int, rows int) {
 	element.forcedColumns = columns
 	element.forcedRows    = rows
-	if element.entity == nil { return }
 	element.updateMinimumSize()
 }