ladybird/Libraries/LibWeb/Painting/PaintableFragment.h
Timothy Flynn 97548f48de LibWeb: Port rendered text to UTF-16
This migrates TextNode::text_for_rendering() to Utf16String and deals
with the fallout. As a consequence, this effectively reverts commit
3df83dade8.

The layout test expecation file updates are because we now express text
lengths and offsets in UTF-16 code units.

The selection-over-multiple-code-units expectation file update actually
represents a correctness fix. Our result now matches Firefox.
2025-07-25 18:16:22 +02:00

68 lines
2.2 KiB
C++

/*
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Utf16View.h>
#include <LibGfx/TextLayout.h>
#include <LibWeb/Layout/Node.h>
#include <LibWeb/Painting/ShadowData.h>
#include <LibWeb/PixelUnits.h>
namespace Web::Painting {
class PaintableFragment {
friend class PaintableWithLines;
public:
explicit PaintableFragment(Layout::LineBoxFragment const&);
Layout::Node const& layout_node() const { return m_layout_node; }
Paintable const& paintable() const { return *m_layout_node->first_paintable(); }
size_t start_offset() const { return m_start_offset; }
size_t length_in_code_units() const { return m_length_in_code_units; }
CSSPixels baseline() const { return m_baseline; }
CSSPixelPoint offset() const { return m_offset; }
void set_offset(CSSPixelPoint offset) { m_offset = offset; }
CSSPixelSize size() const { return m_size; }
Vector<ShadowData> const& shadows() const { return m_shadows; }
void set_shadows(Vector<ShadowData>&& shadows) { m_shadows = shadows; }
CSSPixelRect const absolute_rect() const;
RefPtr<Gfx::GlyphRun> glyph_run() const { return m_glyph_run; }
Gfx::Orientation orientation() const;
CSSPixelRect selection_rect() const;
CSSPixelRect range_rect(Paintable::SelectionState selection_state, size_t start_offset_in_code_units, size_t end_offset_in_code_units) const;
CSSPixels width() const { return m_size.width(); }
CSSPixels height() const { return m_size.height(); }
size_t index_in_node_for_point(CSSPixelPoint) const;
Utf16View text() const;
CSSPixels text_decoration_thickness() const { return m_text_decoration_thickness; }
void set_text_decoration_thickness(CSSPixels thickness) { m_text_decoration_thickness = thickness; }
private:
GC::Ref<Layout::Node const> m_layout_node;
CSSPixelPoint m_offset;
CSSPixelSize m_size;
CSSPixels m_baseline;
size_t m_start_offset { 0 };
size_t m_length_in_code_units { 0 };
RefPtr<Gfx::GlyphRun> m_glyph_run;
CSS::WritingMode m_writing_mode;
Vector<ShadowData> m_shadows;
CSSPixels m_text_decoration_thickness { 0 };
};
}