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LibGfx+Everywhere: Change Gfx::Rect to be endpoint exclusive

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Previously, calling `.right()` on a `Gfx::Rect` would return the last
column's coordinate still inside the rectangle, or `left + width - 1`.
This is called 'endpoint inclusive' and does not make a lot of sense for
`Gfx::Rect<float>` where a rectangle of width 5 at position (0, 0) would
return 4 as its right side. This same problem exists for `.bottom()`.

This changes `Gfx::Rect` to be endpoint exclusive, which gives us the
nice property that `width = right - left` and `height = bottom - top`.
It enables us to treat `Gfx::Rect<int>` and `Gfx::Rect<float>` exactly
the same.

All users of `Gfx::Rect` have been updated accordingly.
This commit is contained in:
Jelle Raaijmakers 2023-05-22 00:41:18 +02:00 • committed by Andreas Kling
parent b7f4363791
commit f391ccfe53
88 changed files with 524 additions and 518 deletions
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16
Userland/Libraries/LibGUI/Scrollbar.cpp
View file

@ -179,21 +179,21 @@ void Scrollbar::paint_event(PaintEvent& event)
Gfx::IntRect rect_to_fill = rect();
if (orientation() == Orientation::Vertical) {
if (m_gutter_click_state == GutterClickState::BeforeScrubber) {
rect_to_fill.set_top(decrement_button_rect().bottom());
rect_to_fill.set_bottom(scrubber_rect().top());
rect_to_fill.set_top(decrement_button_rect().bottom() - 1);
rect_to_fill.set_bottom(scrubber_rect().top() + 1);
} else {
VERIFY(m_gutter_click_state == GutterClickState::AfterScrubber);
rect_to_fill.set_top(scrubber_rect().bottom());
rect_to_fill.set_bottom(increment_button_rect().top());
rect_to_fill.set_top(scrubber_rect().bottom() - 1);
rect_to_fill.set_bottom(increment_button_rect().top() + 1);
}
} else {
if (m_gutter_click_state == GutterClickState::BeforeScrubber) {
rect_to_fill.set_left(decrement_button_rect().right());
rect_to_fill.set_right(scrubber_rect().left());
rect_to_fill.set_left(decrement_button_rect().right() - 1);
rect_to_fill.set_right(scrubber_rect().left() + 1);
} else {
VERIFY(m_gutter_click_state == GutterClickState::AfterScrubber);
rect_to_fill.set_left(scrubber_rect().right());
rect_to_fill.set_right(increment_button_rect().left());
rect_to_fill.set_left(scrubber_rect().right() - 1);
rect_to_fill.set_right(increment_button_rect().left() + 1);
}
}
painter.fill_rect_with_dither_pattern(rect_to_fill, palette().button(), palette().button().lightened(0.77f));