arcade/tests/unit/gui/test_layouting_anchorlayout.py at 306c9b314c41fb16846cc1e6ed5b64bb2a53e10d · pythonarcade/arcade · GitHub

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from pyglet.math import Vec2

from arcade.gui import UIDummy, UIBoxLayout
from arcade.gui.widgets.layout import UIAnchorLayout
from arcade.types import LBWH


def test_place_widget(window):
    dummy = UIDummy(width=100, height=200)

    subject = UIAnchorLayout(x=0, y=0, width=500, height=500, size_hint=None)

    subject.add(
        dummy,
        align_x=10,
        anchor_x="center_x",
        align_y=-20,
        anchor_y="top",
    )

    subject.do_layout()

    assert subject.rect == LBWH(0, 0, 500, 500)

    assert dummy.center_x == 260
    assert dummy.top == 480


def test_place_widget_relative_to_own_content_rect(window):
    dummy = UIDummy(width=100, height=200)

    subject = (
        UIAnchorLayout(x=0, y=0, width=500, height=500, size_hint=None)
        .with_border(width=2)
        .with_padding(left=50, top=100)
    )

    subject.add(
        dummy,
        align_x=10,
        anchor_x="left",
        align_y=-20,
        anchor_y="top",
    )

    subject.do_layout()

    assert subject.rect == LBWH(0, 0, 500, 500)

    assert dummy.left == 62
    assert dummy.top == 378


def test_place_box_layout(window, ui):
    subject = UIAnchorLayout(width=500, height=500, size_hint=None)
    ui.add(subject)

    box = UIBoxLayout()
    box.add(UIDummy(width=100, height=100))
    box.add(UIDummy(width=100, height=100))

    subject.add(child=box, anchor_x="center_x", align_y=-20, anchor_y="top")

    ui.execute_layout()

    assert subject.rect == LBWH(0, 0, 500, 500)
    assert box.rect == LBWH(200, 280, 100, 200)


def test_grow_child_half(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(0.5, 0.5)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.rect == LBWH(100, 100, 200, 200)


def test_grow_child_full_width(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(1, 0.5)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.rect == LBWH(0, 100, 400, 200)


def test_grow_child_full_height(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(0.5, 1)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.rect == LBWH(100, 0, 200, 400)


def test_grow_child_to_max_size(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(1, 1), size_hint_max=(200, 150)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.size == Vec2(200, 150)


def test_shrink_child_to_min_size(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(
        UIDummy(width=100, height=100, size_hint=(0.1, 0.1), size_hint_min=(200, 150))
    )

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.size == Vec2(200, 150)


def test_children_can_grow_out_of_bounce(window):
    """This tests behavior, which is used for scrolling."""
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(2, 2)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.size == Vec2(800, 800)


def test_children_limited_to_layout_size_when_enforced(window):
    """This tests behavior, which is used for scrolling."""
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    subject._restrict_child_size = True
    dummy = subject.add(UIDummy(width=100, height=100, size_hint=(2, 2)))

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.size == Vec2(400, 400)


def test_only_adjust_size_if_size_hint_is_given_for_dimension(window):
    subject = UIAnchorLayout(width=400, height=400, size_hint=None)
    dummy = subject.add(
        UIDummy(width=100, height=100, size_hint=(2, None), size_hint_min=(None, 200))
    )

    subject._do_layout()

    assert subject.rect == LBWH(0, 0, 400, 400)
    assert dummy.size == Vec2(800, 100)