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LibGUI: Add Widget shrink-to-fit layout flag

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If this flag is enabled for a widget, it will be automatically sized
based on its children. This only works for widgets using a layout.

This allows you to put widgets inside each other without having to
manually calculate how large the container should be. It's not the
perfect API but it's a decent progression in ergonomics. :^)
This commit is contained in:
Andreas Kling 2021-01-04 18:17:14 +01:00
parent ce7b09a3c5
commit b03e1b08b5
5 changed files with 90 additions and 0 deletions
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10
Libraries/LibGUI/Widget.cpp
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@ -105,6 +105,8 @@ Widget::Widget()
REGISTER_INT_PROPERTY("fixed_height", dummy_fixed_height, set_fixed_height);
REGISTER_SIZE_PROPERTY("fixed_size", dummy_fixed_size, set_fixed_size);
REGISTER_BOOL_PROPERTY("shrink_to_fit", is_shrink_to_fit, set_shrink_to_fit);
REGISTER_INT_PROPERTY("x", x, set_x);
REGISTER_INT_PROPERTY("y", y, set_y);
@ -1010,4 +1012,12 @@ bool Widget::has_focus_within() const
return window->focused_widget() == &effective_focus_widget || is_ancestor_of(*window->focused_widget());
}
void Widget::set_shrink_to_fit(bool b)
{
if (m_shrink_to_fit == b)
return;
m_shrink_to_fit = b;
invalidate_layout();
}
}