public void TestAnchorLayoutBasic()
{
var control = new LayoutContainer {
Size = new Vector2(100, 100)
};
var child = new Control();
LayoutContainer.SetAnchorRight(child, 1);
LayoutContainer.SetAnchorBottom(child, 1);
control.AddChild(child);
control.Arrange(new UIBox2(0, 0, 100, 100));
Assert.That(child.Size, Is.EqualTo(new Vector2(100, 100)));
Assert.That(child.Position, Is.EqualTo(Vector2.Zero));
LayoutContainer.SetAnchorLeft(child, 0.5f);
control.InvalidateArrange();
control.Arrange(new UIBox2(0, 0, 100, 100));
Assert.That(child.Position, Is.EqualTo(new Vector2(50, 0)));
Assert.That(child.Size, Is.EqualTo(new Vector2(50, 100)));
LayoutContainer.SetAnchorTop(child, 0.5f);
control.InvalidateArrange();
control.Arrange(new UIBox2(0, 0, 100, 100));
Assert.That(child.Position, Is.EqualTo(new Vector2(50, 50)));
Assert.That(child.Size, Is.EqualTo(new Vector2(50, 50)));
}
public void TestMarginAnchorLayout()
{
var control = new LayoutContainer {
Size = new Vector2(100, 100)
};
var child = new Control();
LayoutContainer.SetMarginRight(child, -10);
LayoutContainer.SetMarginBottom(child, -10);
LayoutContainer.SetMarginTop(child, 10);
LayoutContainer.SetMarginLeft(child, 10);
LayoutContainer.SetAnchorRight(child, 1);
LayoutContainer.SetAnchorBottom(child, 1);
control.AddChild(child);
control.InvalidateArrange();
control.Arrange(new UIBox2(0, 0, 100, 100));
Assert.That(child.Position, Is.EqualTo(new Vector2(10, 10)));
Assert.That(child.Size, Is.EqualTo(new Vector2(80, 80)));
}
public void TestGrowEnd()
{
var parent = new LayoutContainer();
var child = new Control {
SetSize = (100, 100)
};
LayoutContainer.SetAnchorRight(child, 1);
parent.AddChild(child);
parent.Arrange(new UIBox2(0, 0, 100, 100));
// Child should be at 0,0.
Assert.That(child.Position, Is.EqualTo(Vector2.Zero));
// Right margin should make the child not have enough space and grow left.
LayoutContainer.SetMarginRight(child, -100);
parent.InvalidateArrange();
parent.Arrange(new UIBox2(0, 0, 100, 100));
Assert.That(child.Position, Is.EqualTo(Vector2.Zero));
Assert.That(child.Size, Is.EqualTo(new Vector2(100, 100)));
}