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LibWeb: Use separate structure to represent fragments in paintable tree

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This is a part of refactoring towards making the paintable tree
independent of the layout tree. Now, instead of transferring text
fragments from the layout tree to the paintable tree during the layout
commit phase, we allocate separate PaintableFragments that contain only
the information necessary for painting. Doing this also allows us to
get rid LineBoxes, as they are used only during layout.
This commit is contained in:
Aliaksandr Kalenik 2024-01-12 21:25:05 +01:00 • committed by Andreas Kling
parent 785fa60cca
commit de32b77ceb
401 changed files with 2122 additions and 3614 deletions
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42
Userland/Libraries/LibWeb/Dump.cpp
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@ -343,38 +343,26 @@ void dump_tree(StringBuilder& builder, Layout::Node const& layout_node, bool sho
if (is<Layout::BlockContainer>(layout_node) && static_cast<Layout::BlockContainer const&>(layout_node).children_are_inline()) {
auto& block = static_cast<Layout::BlockContainer const&>(layout_node);
for (size_t line_box_index = 0; block.paintable_with_lines() && line_box_index < block.paintable_with_lines()->line_boxes().size(); ++line_box_index) {
auto& line_box = block.paintable_with_lines()->line_boxes()[line_box_index];
for (size_t fragment_index = 0; block.paintable_with_lines() && fragment_index < block.paintable_with_lines()->fragments().size(); ++fragment_index) {
auto const& fragment = block.paintable_with_lines()->fragments()[fragment_index];
for (size_t i = 0; i < indent; ++i)
builder.append(" "sv);
builder.appendff(" {}line {}{} width: {}, height: {}, bottom: {}, baseline: {}\n",
line_box_color_on,
line_box_index,
builder.appendff(" {}frag {}{} from {} ",
fragment_color_on,
fragment_index,
color_off,
line_box.width(),
line_box.height(),
line_box.bottom(),
line_box.baseline());
for (size_t fragment_index = 0; fragment_index < line_box.fragments().size(); ++fragment_index) {
auto& fragment = line_box.fragments()[fragment_index];
fragment.layout_node().class_name());
builder.appendff("start: {}, length: {}, rect: {} baseline: {}\n",
fragment.start(),
fragment.length(),
fragment.absolute_rect(),
fragment.baseline());
if (is<Layout::TextNode>(fragment.layout_node())) {
for (size_t i = 0; i < indent; ++i)
builder.append(" "sv);
builder.appendff(" {}frag {}{} from {} ",
fragment_color_on,
fragment_index,
color_off,
fragment.layout_node().class_name());
builder.appendff("start: {}, length: {}, rect: {}\n",
fragment.start(),
fragment.length(),
fragment.absolute_rect());
if (is<Layout::TextNode>(fragment.layout_node())) {
for (size_t i = 0; i < indent; ++i)
builder.append(" "sv);
auto& layout_text = static_cast<Layout::TextNode const&>(fragment.layout_node());
auto fragment_text = MUST(layout_text.text_for_rendering().substring_from_byte_offset(fragment.start(), fragment.length()));
builder.appendff(" \"{}\"\n", fragment_text);
}
auto const& layout_text = static_cast<Layout::TextNode const&>(fragment.layout_node());
auto fragment_text = MUST(layout_text.text_for_rendering().substring_from_byte_offset(fragment.start(), fragment.length()));
builder.appendff(" \"{}\"\n", fragment_text);
}
}
}