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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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10
Userland/Libraries/LibWeb/Painting/PaintableBox.cpp
View file

@ -450,16 +450,16 @@ static void paint_text_decoration(PaintContext& context, Gfx::Painter& painter,
return;
case CSS::TextDecorationLine::Underline:
line_start_point = context.rounded_device_point(fragment_box.top_left().translated(0, baseline + 2));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(0, baseline + 2));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(-1, baseline + 2));
break;
case CSS::TextDecorationLine::Overline:
line_start_point = context.rounded_device_point(fragment_box.top_left().translated(0, baseline - glyph_height));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(0, baseline - glyph_height));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(-1, baseline - glyph_height));
break;
case CSS::TextDecorationLine::LineThrough: {
auto x_height = font.x_height();
line_start_point = context.rounded_device_point(fragment_box.top_left().translated(0, baseline - x_height * 0.5f));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(0, baseline - x_height * 0.5f));
line_end_point = context.rounded_device_point(fragment_box.top_right().translated(-1, baseline - x_height * 0.5f));
break;
}
case CSS::TextDecorationLine::Blink:
@ -603,7 +603,7 @@ void PaintableWithLines::paint(PaintContext& context, PaintPhase phase) const
context.painter().draw_rect(context.enclosing_device_rect(fragment_absolute_rect).to_type<int>(), Color::Green);
context.painter().draw_line(
context.rounded_device_point(fragment_absolute_rect.top_left().translated(0, fragment.baseline())).to_type<int>(),
context.rounded_device_point(fragment_absolute_rect.top_right().translated(0, fragment.baseline())).to_type<int>(), Color::Red);
context.rounded_device_point(fragment_absolute_rect.top_right().translated(-1, fragment.baseline())).to_type<int>(), Color::Red);
}
if (is<Layout::TextNode>(fragment.layout_node()))
paint_text_fragment(context, static_cast<Layout::TextNode const&>(fragment.layout_node()), fragment, phase);
@ -715,7 +715,7 @@ Optional<HitTestResult> PaintableWithLines::hit_test(CSSPixelPoint position, Hit
// The best candidate is either the end of the line above, the beginning of the line below, or the beginning or end of the current line.
// We arbitrarily choose to consider the end of the line above and ignore the beginning of the line below.
// If we knew the direction of selection, we could make a better choice.
if (fragment_absolute_rect.bottom() <= position.y()) { // fully below the fragment
if (fragment_absolute_rect.bottom() - 1 <= position.y()) { // fully below the fragment
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() + fragment.length() };
} else if (fragment_absolute_rect.top() <= position.y()) { // vertically within the fragment
if (position.x() < fragment_absolute_rect.left()) { // left of the fragment