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LibGUI: Implement new layout system for Scrollbar

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This commit is contained in:
FrHun 2022-01-03 18:31:46 +01:00 • committed by Sam Atkins
parent 19fac58e49
commit 3978960481
2 changed files with 20 additions and 5 deletions
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22
Userland/Libraries/LibGUI/Scrollbar.cpp
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@ -48,11 +48,7 @@ Scrollbar::Scrollbar(Orientation orientation)
{
m_automatic_scrolling_timer = add<Core::Timer>();
if (orientation == Orientation::Vertical) {
set_fixed_width(16);
} else {
set_fixed_height(16);
}
set_preferred_size({ SpecialDimension::Fit });
m_automatic_scrolling_timer->set_interval(100);
m_automatic_scrolling_timer->on_timeout = [this] {
@ -421,4 +417,20 @@ void Scrollbar::update_animated_scroll()
AbstractSlider::set_value(new_value);
}
Optional<UISize> Scrollbar::calculated_min_size() const
{
if (orientation() == Gfx::Orientation::Vertical)
return { { default_button_size(), 2 * default_button_size() } };
else
return { { 2 * default_button_size(), default_button_size() } };
}
Optional<UISize> Scrollbar::calculated_preferred_size() const
{
if (orientation() == Gfx::Orientation::Vertical)
return { { SpecialDimension::Shrink, SpecialDimension::Grow } };
else
return { { SpecialDimension::Grow, SpecialDimension::Shrink } };
}
}

3
Userland/Libraries/LibGUI/Scrollbar.h
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@ -40,6 +40,9 @@ public:
virtual void increase_slider_by_steps(int steps) override { set_target_value(m_target_value + step() * steps); }
virtual void decrease_slider_by_steps(int steps) override { set_target_value(m_target_value - step() * steps); }
virtual Optional<UISize> calculated_min_size() const override;
virtual Optional<UISize> calculated_preferred_size() const override;
enum Component {
None,
DecrementButton,