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GScrollBar: Add the same hover highlight effect as GButton.

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This commit is contained in:
Andreas Kling 2019-04-06 13:55:56 +02:00
parent 8bda69e32f
commit 6306cf5c27
Notes: sideshowbarker 2024-07-19 14:48:19 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/6306cf5c27c
2 changed files with 31 additions and 3 deletions
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24
LibGUI/GScrollBar.cpp
View File

@ -197,14 +197,14 @@ void GScrollBar::paint_event(GPaintEvent& event)
painter.fill_rect(rect(), Color::from_rgb(0xd6d2ce));
StylePainter::paint_button(painter, up_button_rect(), ButtonStyle::Normal, false);
StylePainter::paint_button(painter, up_button_rect(), ButtonStyle::Normal, false, m_hovered_component == Component::DecrementButton);
painter.draw_bitmap(up_button_rect().location().translated(3, 3), orientation() == Orientation::Vertical ? *s_up_arrow_bitmap : *s_left_arrow_bitmap, has_scrubber() ? Color::Black : Color::MidGray);
StylePainter::paint_button(painter, down_button_rect(), ButtonStyle::Normal, false);
StylePainter::paint_button(painter, down_button_rect(), ButtonStyle::Normal, false, m_hovered_component == Component::IncrementButton);
painter.draw_bitmap(down_button_rect().location().translated(3, 3), orientation() == Orientation::Vertical ? *s_down_arrow_bitmap : *s_right_arrow_bitmap, has_scrubber() ? Color::Black : Color::MidGray);
if (has_scrubber())
StylePainter::paint_button(painter, scrubber_rect(), ButtonStyle::Normal, false);
StylePainter::paint_button(painter, scrubber_rect(), ButtonStyle::Normal, false, m_hovered_component == Component::Scrubber);
}
void GScrollBar::mousedown_event(GMouseEvent& event)
@ -271,6 +271,19 @@ void GScrollBar::mouseup_event(GMouseEvent& event)
void GScrollBar::mousemove_event(GMouseEvent& event)
{
auto old_hovered_component = m_hovered_component;
if (scrubber_rect().contains(event.position()))
m_hovered_component = Component::Scrubber;
else if (up_button_rect().contains(event.position()))
m_hovered_component = Component::DecrementButton;
else if (down_button_rect().contains(event.position()))
m_hovered_component = Component::IncrementButton;
else if (rect().contains(event.position()))
m_hovered_component = Component::Gutter;
else
m_hovered_component = Component::Invalid;
if (old_hovered_component != m_hovered_component)
update();
if (!m_scrubbing)
return;
float delta = orientation() == Orientation::Vertical ? (event.y() - m_scrub_origin.y()) : (event.x() - m_scrub_origin.x());
@ -279,3 +292,8 @@ void GScrollBar::mousemove_event(GMouseEvent& event)
float new_value = m_scrub_start_value + (value_steps_per_scrubbed_pixel * delta);
set_value(new_value);
}
void GScrollBar::leave_event(GEvent&)
{
m_hovered_component = Component::Invalid;
}

10
LibGUI/GScrollBar.h
View File

@ -26,11 +26,20 @@ public:
virtual const char* class_name() const override { return "GScrollBar"; }
enum Component {
Invalid,
DecrementButton,
IncrementButton,
Gutter,
Scrubber,
};
private:
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void mouseup_event(GMouseEvent&) override;
virtual void mousemove_event(GMouseEvent&) override;
virtual void leave_event(GEvent&) override;
int button_size() const { return orientation() == Orientation::Vertical ? width() : height(); }
Rect up_button_rect() const;
@ -52,4 +61,5 @@ private:
Point m_scrub_origin;
Orientation m_orientation { Orientation::Vertical };
Component m_hovered_component { Component::Invalid };
};