checkbox.go
func (c *CheckBox) SetSize(width, height int) {
	if width != KeepValue && (width > 1000 || width < c.minW) {
		return
	}
	if height != KeepValue && (height > 200 || height < c.minH) {
		return
	}

	if width != KeepValue {
		c.width = width
	}

	c.height = 1
}
func (c *CheckBox) SetSize(width, height int) {
	if width != KeepValue && (width > 1000 || width < c.minW) {
		return
	}
	if height != KeepValue && (height > 200 || height < c.minH) {
		return
	}

	if width != KeepValue {
		c.width = width
	}

	c.height = 1
}
// SetSize changes control size. Constant DoNotChange can be
// used as placeholder to indicate that the control attrubute
// should be unchanged.
// Method does nothing if new size is less than minimal size
// CheckBox height cannot be changed - it equals 1 always