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LibGUI: Subtract layout margin when placing items along secondary axis

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While space distribution along the primary axis of a BoxLayout is
pretty sophisticated, the secondary axis is very simple: we simply
center the widget.

However, this doesn't always look very nice if we don't take margins
into account, so make sure we subtract them from the rect we do all
the centering within.
This commit is contained in:
Andreas Kling
2021-04-02 22:53:58 +02:00
parent 05d7869dc0
commit 6ba00ae5b9
1 changed files with 8 additions and 2 deletions
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10
Userland/Libraries/LibGUI/BoxLayout.cpp
View File

@@ -198,6 +198,12 @@ void BoxLayout::run(Widget& widget)
int current_x = margins().left();
int current_y = margins().top();
auto widget_rect_with_margins_subtracted = widget.rect();
widget_rect_with_margins_subtracted.take_from_left(margins().left());
widget_rect_with_margins_subtracted.take_from_top(margins().top());
widget_rect_with_margins_subtracted.take_from_right(margins().right());
widget_rect_with_margins_subtracted.take_from_bottom(margins().bottom());
for (auto& item : items) {
Gfx::IntRect rect { current_x, current_y, 0, 0 };
@@ -220,9 +226,9 @@ void BoxLayout::run(Widget& widget)
rect.set_secondary_size_for_orientation(orientation(), secondary);
if (orientation() == Gfx::Orientation::Horizontal)
rect.center_vertically_within(widget.rect());
rect.center_vertically_within(widget_rect_with_margins_subtracted);
else
rect.center_horizontally_within(widget.rect());
rect.center_horizontally_within(widget_rect_with_margins_subtracted);
item.widget->set_relative_rect(rect);
}