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LibWeb: More work on table layout

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Table row layout is now split into two phases:

1. Compute all the column widths (even taking colspan into account!)
2. Place all cells at the correct x,y offsets based on column widths.

Both phases visit all rows and all cells.
This commit is contained in:
Andreas Kling 2020-06-13 00:12:23 +02:00
commit 62893a54cc
Notes: sideshowbarker 2024-07-19 05:41:23 +09:00
4 changed files with 53 additions and 7 deletions
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24
Libraries/LibWeb/Layout/LayoutTableRow.cpp
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@ -41,12 +41,30 @@ LayoutTableRow::~LayoutTableRow()
void LayoutTableRow::layout(LayoutMode)
{
float tallest_cell_height = 0;
float content_width = 0;
}
void LayoutTableRow::calculate_column_widths(Vector<float>& column_widths)
{
size_t column_index = 0;
for_each_child_of_type<LayoutTableCell>([&](auto& cell) {
cell.layout(LayoutMode::OnlyRequiredLineBreaks);
column_widths[column_index] = max(column_widths[column_index], cell.width());
column_index += cell.colspan();
});
}
void LayoutTableRow::layout_row(const Vector<float>& column_widths)
{
size_t column_index = 0;
float tallest_cell_height = 0;
float content_width = 0;
for_each_child_of_type<LayoutTableCell>([&](auto& cell) {
cell.set_offset(effective_offset().translated(content_width, 0));
content_width += cell.width();
size_t cell_colspan = cell.colspan();
for (size_t i = 0; i < cell_colspan; ++i)
content_width += column_widths[column_index++];
tallest_cell_height = max(tallest_cell_height, cell.height());
});
set_width(content_width);