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https://github.com/fergalmoran/ladybird.git
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6e86ad65e9
This value gets converted to FlyString a lot, so let's just make it a FlyString in the first place!
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/*
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* Copyright (c) 2022, the SerenityOS developers.
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.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 <AK/FlyString.h>
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#include <AK/HashMap.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/Font/Typeface.h>
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class SkFont;
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namespace Gfx {
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class ScaledFont final : public Gfx::Font {
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public:
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ScaledFont(NonnullRefPtr<Typeface>, float point_width, float point_height, unsigned dpi_x = DEFAULT_DPI, unsigned dpi_y = DEFAULT_DPI);
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ScaledFontMetrics metrics() const;
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// ^Gfx::Font
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virtual float point_size() const override;
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virtual float pixel_size() const override;
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virtual int pixel_size_rounded_up() const override;
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virtual Gfx::FontPixelMetrics pixel_metrics() const override;
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virtual u8 slope() const override { return m_typeface->slope(); }
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virtual u16 weight() const override { return m_typeface->weight(); }
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virtual bool contains_glyph(u32 code_point) const override { return m_typeface->glyph_id_for_code_point(code_point) > 0; }
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virtual float glyph_width(u32 code_point) const override;
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virtual u32 glyph_id_for_code_point(u32 code_point) const override { return m_typeface->glyph_id_for_code_point(code_point); }
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virtual float preferred_line_height() const override { return metrics().height() + metrics().line_gap; }
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virtual int x_height() const override { return m_point_height; } // FIXME: Read from font
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virtual u8 baseline() const override { return m_point_height; } // FIXME: Read from font
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virtual float width(StringView) const override;
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virtual float width(Utf8View const&) const override;
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virtual FlyString family() const override { return m_typeface->family(); }
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virtual NonnullRefPtr<ScaledFont> scaled_with_size(float point_size) const;
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virtual NonnullRefPtr<Font> with_size(float point_size) const override;
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virtual Typeface const& typeface() const override { return m_typeface; }
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SkFont skia_font(float scale) const;
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private:
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NonnullRefPtr<Typeface> m_typeface;
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float m_x_scale { 0.0f };
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float m_y_scale { 0.0f };
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float m_point_width { 0.0f };
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float m_point_height { 0.0f };
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Gfx::FontPixelMetrics m_pixel_metrics;
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float m_pixel_size { 0.0f };
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int m_pixel_size_rounded_up { 0 };
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};
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}
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