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constraint_aspect.go
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/
constraint_aspect.go
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package zgui
// AspectConstraint keeps aspect ratio between the opposite bound.
// ATENTION: It can lead to recursive loops!
type AspectConstraint struct {
IConstraint
val float32
}
// NewAspectConstraint creates an aspect constraint object.
func NewAspectConstraint(val float32) *AspectConstraint {
return &AspectConstraint{
IConstraint: NewBaseConstraint(),
val: val,
}
}
// GetX returns the X value of the component according
// to its Y value.
func (c AspectConstraint) GetX() float32 {
return c.self().GetY() * c.val
}
// GetY returns the Y value of the component according
// to its X value.
func (c AspectConstraint) GetY() float32 {
return c.self().GetX() * c.val
}
// GetWidth returns the Width value of the component according
// to its Height value.
func (c AspectConstraint) GetWidth() float32 {
return c.self().GetHeight() * c.val
}
// GetHeight returns the Width value of the component according
// to its Width value.
func (c AspectConstraint) GetHeight() float32 {
return c.self().GetWidth() * c.val
}
// String returns a string representation of the constraint.
func (c AspectConstraint) String() string {
return "AspectConstraint"
}