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fast path for scrolling

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This commit is contained in:
Will McGugan
2023-02-17 10:42:42 +00:00
parent 06fa8d7e8e
commit 11d10db1ab
10 changed files with 237 additions and 86 deletions
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49
tests/test_arrange.py
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@@ -9,10 +9,10 @@ from textual.widget import Widget
def test_arrange_empty():
container = Widget(id="container")
placements, widgets, spacing = arrange(container, [], Size(80, 24), Size(80, 24))
assert placements == []
assert widgets == set()
assert spacing == Spacing(0, 0, 0, 0)
result = arrange(container, [], Size(80, 24), Size(80, 24))
assert result.placements == []
assert result.widgets == set()
assert result.spacing == Spacing(0, 0, 0, 0)
def test_arrange_dock_top():
@@ -22,17 +22,16 @@ def test_arrange_dock_top():
header.styles.dock = "top"
header.styles.height = "1"
placements, widgets, spacing = arrange(
container, [child, header], Size(80, 24), Size(80, 24)
)
assert placements == [
result = arrange(container, [child, header], Size(80, 24), Size(80, 24))
assert result.placements == [
WidgetPlacement(
Region(0, 0, 80, 1), Spacing(), header, order=TOP_Z, fixed=True
),
WidgetPlacement(Region(0, 1, 80, 23), Spacing(), child, order=0, fixed=False),
]
assert widgets == {child, header}
assert spacing == Spacing(1, 0, 0, 0)
assert result.widgets == {child, header}
assert result.spacing == Spacing(1, 0, 0, 0)
def test_arrange_dock_left():
@@ -42,17 +41,15 @@ def test_arrange_dock_left():
header.styles.dock = "left"
header.styles.width = "10"
placements, widgets, spacing = arrange(
container, [child, header], Size(80, 24), Size(80, 24)
)
assert placements == [
result = arrange(container, [child, header], Size(80, 24), Size(80, 24))
assert result.placements == [
WidgetPlacement(
Region(0, 0, 10, 24), Spacing(), header, order=TOP_Z, fixed=True
),
WidgetPlacement(Region(10, 0, 70, 24), Spacing(), child, order=0, fixed=False),
]
assert widgets == {child, header}
assert spacing == Spacing(0, 0, 0, 10)
assert result.widgets == {child, header}
assert result.spacing == Spacing(0, 0, 0, 10)
def test_arrange_dock_right():
@@ -62,17 +59,15 @@ def test_arrange_dock_right():
header.styles.dock = "right"
header.styles.width = "10"
placements, widgets, spacing = arrange(
container, [child, header], Size(80, 24), Size(80, 24)
)
assert placements == [
result = arrange(container, [child, header], Size(80, 24), Size(80, 24))
assert result.placements == [
WidgetPlacement(
Region(70, 0, 10, 24), Spacing(), header, order=TOP_Z, fixed=True
),
WidgetPlacement(Region(0, 0, 70, 24), Spacing(), child, order=0, fixed=False),
]
assert widgets == {child, header}
assert spacing == Spacing(0, 10, 0, 0)
assert result.widgets == {child, header}
assert result.spacing == Spacing(0, 10, 0, 0)
def test_arrange_dock_bottom():
@@ -82,17 +77,15 @@ def test_arrange_dock_bottom():
header.styles.dock = "bottom"
header.styles.height = "1"
placements, widgets, spacing = arrange(
container, [child, header], Size(80, 24), Size(80, 24)
)
assert placements == [
result = arrange(container, [child, header], Size(80, 24), Size(80, 24))
assert result.placements == [
WidgetPlacement(
Region(0, 23, 80, 1), Spacing(), header, order=TOP_Z, fixed=True
),
WidgetPlacement(Region(0, 0, 80, 23), Spacing(), child, order=0, fixed=False),
]
assert widgets == {child, header}
assert spacing == Spacing(0, 0, 1, 0)
assert result.widgets == {child, header}
assert result.spacing == Spacing(0, 0, 1, 0)
def test_arrange_dock_badly():