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fffc5896d8
Const pointers into the DOM was a nice idea, but in practice, there are too many situations where the layout tree wants to some non-const thing to the DOM.
96 lines
3.5 KiB
C++
96 lines
3.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/Layout/LayoutTable.h>
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#include <LibWeb/Layout/LayoutTableCell.h>
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#include <LibWeb/Layout/LayoutTableRow.h>
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namespace Web {
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LayoutTableRow::LayoutTableRow(DOM::Document& document, DOM::Element& element, NonnullRefPtr<CSS::StyleProperties> style)
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: LayoutBox(document, &element, move(style))
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{
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}
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LayoutTableRow::~LayoutTableRow()
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{
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}
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void LayoutTableRow::layout(LayoutMode)
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{
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}
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void LayoutTableRow::calculate_column_widths(Vector<float>& column_widths)
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{
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size_t column_index = 0;
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auto* table = first_ancestor_of_type<LayoutTable>();
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bool use_auto_layout = !table || table->style().width().is_undefined_or_auto();
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for_each_child_of_type<LayoutTableCell>([&](auto& cell) {
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if (use_auto_layout) {
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cell.layout(LayoutMode::OnlyRequiredLineBreaks);
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} else {
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cell.layout(LayoutMode::Default);
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}
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column_widths[column_index] = max(column_widths[column_index], cell.width());
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column_index += cell.colspan();
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});
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}
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void LayoutTableRow::layout_row(const Vector<float>& column_widths)
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{
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size_t column_index = 0;
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float tallest_cell_height = 0;
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float content_width = 0;
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auto* table = first_ancestor_of_type<LayoutTable>();
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bool use_auto_layout = !table || table->style().width().is_undefined_or_auto();
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for_each_child_of_type<LayoutTableCell>([&](auto& cell) {
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cell.set_offset(effective_offset().translated(content_width, 0));
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// Layout the cell contents a second time, now that we know its final width.
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if (use_auto_layout) {
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cell.layout_inside(LayoutMode::OnlyRequiredLineBreaks);
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} else {
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cell.layout_inside(LayoutMode::Default);
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}
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size_t cell_colspan = cell.colspan();
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for (size_t i = 0; i < cell_colspan; ++i)
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content_width += column_widths[column_index++];
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tallest_cell_height = max(tallest_cell_height, cell.height());
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});
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if (use_auto_layout) {
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set_width(content_width);
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} else {
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set_width(table->width());
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}
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set_height(tallest_cell_height);
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}
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}
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