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36 lines
1017 B
C++
36 lines
1017 B
C++
#pragma once
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#include <string>
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#include <vector>
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#include <hb.h>
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namespace harfbuzz_shaping
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{
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struct TextSegment
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{
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// TODO(AB): Use 1 byte or 2 bytes for memory-efficient caching.
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int32_t m_start; // Offset to the segment start in the string.
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int32_t m_length;
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hb_script_t m_script;
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hb_direction_t m_direction;
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TextSegment(int32_t start, int32_t length, hb_script_t script, hb_direction_t direction)
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: m_start(start), m_length(length), m_script(script), m_direction(direction) {}
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};
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struct TextSegments
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{
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std::u16string m_text;
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std::vector<TextSegment> m_segments;
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// TODO(AB): Reverse indexes to order segments instead of moving them.
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//std::vector<size_t> m_segmentsOrder;
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};
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// Finds segments with common properties suitable for harfbuzz in a single line of text without newlines.
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// Any line breaking/trimming should be done by the caller.
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TextSegments GetTextSegments(std::string_view utf8);
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std::string DebugPrint(TextSegment const & segment);
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} // namespace harfbuzz_shaping
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