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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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18
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
View file

@ -706,7 +706,7 @@ void BlockFormattingContext::place_block_level_element_in_normal_flow_vertically
CSSPixels clearance_y_in_root = 0;
for (auto const& floating_box : float_side.current_boxes) {
auto floating_box_rect_in_root = margin_box_rect_in_ancestor_coordinate_space(floating_box.box, root(), m_state);
clearance_y_in_root = max(clearance_y_in_root, floating_box_rect_in_root.bottom() + 1);
clearance_y_in_root = max(clearance_y_in_root, floating_box_rect_in_root.bottom());
}
// Then, convert the clearance Y to a coordinate relative to the containing block of `child_box`.
@ -762,8 +762,8 @@ static void measure_scrollable_overflow(LayoutState const& state, Box const& box
auto child_rect = absolute_content_rect(box, state);
child_rect.inflate(child_state.border_box_top(), child_state.border_box_right(), child_state.border_box_bottom(), child_state.border_box_left());
bottom_edge = max(bottom_edge, child_rect.bottom());
right_edge = max(right_edge, child_rect.right());
bottom_edge = max(bottom_edge, child_rect.bottom() - 1);
right_edge = max(right_edge, child_rect.right() - 1);
if (box.computed_values().overflow_x() == CSS::Overflow::Hidden && box.computed_values().overflow_y() == CSS::Overflow::Hidden)
return;
@ -874,7 +874,9 @@ void BlockFormattingContext::layout_floating_box(Box const& box, BlockContainer
// We're looking for the innermost preceding float that intersects vertically with `box`.
for (auto& preceding_float : side_data.current_boxes.in_reverse()) {
auto const preceding_float_rect = margin_box_rect_in_ancestor_coordinate_space(preceding_float.box, root(), m_state);
if (!preceding_float_rect.contains_vertically(y_in_root))
// FIXME: the line below is for compatibility with a fixed `Gfx::FloatRect` bug where `.bottom()` was subtracted by one;
// replace with !rect.contains_vertically() and update the test cases accordingly.
if (y_in_root < preceding_float_rect.top() || y_in_root > preceding_float_rect.bottom() - 1.f)
continue;
// We found a preceding float that intersects vertically with the current float.
// Now we need to find out if there's enough inline-axis space to stack them next to each other.
@ -1007,7 +1009,9 @@ BlockFormattingContext::SpaceUsedByFloats BlockFormattingContext::space_used_by_
auto const& floating_box_state = m_state.get(floating_box.box);
// NOTE: The floating box is *not* in the final horizontal position yet, but the size and vertical position is valid.
auto rect = margin_box_rect_in_ancestor_coordinate_space(floating_box.box, root(), m_state);
if (rect.contains_vertically(y.value())) {
// FIXME: the line below is for compatibility with a fixed `Gfx::FloatRect` bug where `.bottom()` was subtracted by one;
// replace with rect.contains_vertically() and update the test cases accordingly.
if (y.value() >= rect.top() && y.value() <= rect.bottom() - 1.f) {
CSSPixels offset_from_containing_block_chain_margins_between_here_and_root = 0;
for (auto const* containing_block = floating_box.box->containing_block(); containing_block && containing_block != &root(); containing_block = containing_block->containing_block()) {
auto const& containing_block_state = m_state.get(*containing_block);
@ -1026,7 +1030,9 @@ BlockFormattingContext::SpaceUsedByFloats BlockFormattingContext::space_used_by_
auto const& floating_box_state = m_state.get(floating_box.box);
// NOTE: The floating box is *not* in the final horizontal position yet, but the size and vertical position is valid.
auto rect = margin_box_rect_in_ancestor_coordinate_space(floating_box.box, root(), m_state);
if (rect.contains_vertically(y.value())) {
// FIXME: the line below is for compatibility with a fixed `Gfx::FloatRect` bug where `.bottom()` was subtracted by one;
// replace with rect.contains_vertically() and update the test cases accordingly.
if (y.value() >= rect.top() && y.value() <= rect.bottom() - 1.f) {
CSSPixels offset_from_containing_block_chain_margins_between_here_and_root = 0;
for (auto const* containing_block = floating_box.box->containing_block(); containing_block && containing_block != &root(); containing_block = containing_block->containing_block()) {
auto const& containing_block_state = m_state.get(*containing_block);