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LibGfx: Support computing a font's glyph width with code point iterators
This allows consideration of multi-code point glyphs.
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71967bc5de
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5 changed files with 46 additions and 22 deletions
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@ -61,12 +61,10 @@ public:
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bool contains_glyph(u32 code_point) const override;
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bool contains_raw_glyph(u32 code_point) const { return m_glyph_widths[code_point] > 0; }
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virtual float glyph_or_emoji_width(u32 code_point) const override
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{
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if (m_fixed_width)
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return m_glyph_width;
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return glyph_or_emoji_width_for_variable_width_font(code_point);
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}
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virtual float glyph_or_emoji_width(u32) const override;
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virtual float glyph_or_emoji_width(Utf8CodePointIterator&) const override;
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virtual float glyph_or_emoji_width(Utf32CodePointIterator&) const override;
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float glyphs_horizontal_kerning(u32, u32) const override { return 0.f; }
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u8 glyph_height() const override { return m_glyph_height; }
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int x_height() const override { return m_x_height; }
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@ -138,7 +136,6 @@ private:
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int unicode_view_width(T const& view) const;
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void update_x_height() { m_x_height = m_baseline - m_mean_line; };
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int glyph_or_emoji_width_for_variable_width_font(u32 code_point) const;
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DeprecatedString m_name;
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DeprecatedString m_family;
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