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https://github.com/SerenityOS/serenity
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b01060c7d8
The ChunkIterator now limits a chunk to using only one font (before, it was possible to have a chunk with >1 font, when `unicode-range` CSS property is used). This change allows us to reduce some complexity in the text shaping and painting code and makes us compatible with the APIs in Skia and HarfBuzz. (cherry picked from commit 7181c3f2ea5fba73e77d98acbf9e46640b4a9015, minorly amended to fix conflicts caused by: * Our VectorFont not being renamed to Typeface * Us cherry-picking https://github.com/LadybirdBrowser/ladybird/pull/502 first * Us still having bitmap fonts, and hence needing glyph_spacing() Also amended for: * AffineDisplayListPlayerCPU changes * Removing pure virtuals for glyph_id_for_code_point and glyph_id_for_code_point in Font.h again since we still have BitmapFont which can't implement them * Updating more Painter methods that we still had (Painter::draw_glyph_or_emoji(), Painter::draw_text_run()) )
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Rect.h>
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#include <LibGfx/TextLayout.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/Painting/BorderRadiiData.h>
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#include <LibWeb/PixelUnits.h>
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namespace Web::Layout {
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class LineBoxFragment {
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friend class LineBox;
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public:
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LineBoxFragment(Node const& layout_node, int start, int length, CSSPixelPoint offset, CSSPixelSize size, CSSPixels border_box_top, RefPtr<Gfx::GlyphRun> glyph_run)
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: m_layout_node(layout_node)
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, m_start(start)
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, m_length(length)
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, m_offset(offset)
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, m_size(size)
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, m_border_box_top(border_box_top)
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, m_glyph_run(move(glyph_run))
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{
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}
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Node const& layout_node() const { return m_layout_node; }
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int start() const { return m_start; }
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int length() const { return m_length; }
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CSSPixelRect const absolute_rect() const;
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CSSPixelPoint offset() const { return m_offset; }
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void set_offset(CSSPixelPoint offset) { m_offset = offset; }
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// The baseline of a fragment is the number of pixels from the top to the text baseline.
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void set_baseline(CSSPixels y) { m_baseline = y; }
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CSSPixels baseline() const { return m_baseline; }
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CSSPixelSize size() const
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{
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return m_size;
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}
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void set_width(CSSPixels width) { m_size.set_width(width); }
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void set_height(CSSPixels height) { m_size.set_height(height); }
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CSSPixels width() const { return m_size.width(); }
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CSSPixels height() const { return m_size.height(); }
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CSSPixels border_box_top() const { return m_border_box_top; }
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bool ends_in_whitespace() const;
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bool is_justifiable_whitespace() const;
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StringView text() const;
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bool is_atomic_inline() const;
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RefPtr<Gfx::GlyphRun> glyph_run() const { return m_glyph_run; }
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private:
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JS::NonnullGCPtr<Node const> m_layout_node;
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int m_start { 0 };
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int m_length { 0 };
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CSSPixelPoint m_offset;
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CSSPixelSize m_size;
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CSSPixels m_border_box_top { 0 };
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CSSPixels m_baseline { 0 };
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RefPtr<Gfx::GlyphRun> m_glyph_run;
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};
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}
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