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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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8
Userland/Applications/Magnifier/MagnifierWidget.cpp
View file

@ -117,11 +117,11 @@ void MagnifierWidget::paint_event(GUI::PaintEvent& event)
int end_y = bitmap_rect.bottom();
int end_x = bitmap_rect.right();
for (int current_y = start_y; current_y <= end_y; current_y += m_scale_factor)
painter.draw_line({ start_x, current_y }, { end_x, current_y }, m_grid_color);
for (int current_y = start_y; current_y < end_y; current_y += m_scale_factor)
painter.draw_line({ start_x, current_y }, { end_x - 1, current_y }, m_grid_color);
for (int current_x = start_y; current_x <= end_x; current_x += m_scale_factor)
painter.draw_line({ current_x, start_y }, { current_x, end_y }, m_grid_color);
for (int current_x = start_y; current_x < end_x; current_x += m_scale_factor)
painter.draw_line({ current_x, start_y }, { current_x, end_y - 1 }, m_grid_color);
}
}