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LibPDF: Add CIDFontType2::set_font_size()

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See #20084 commit 4. This does the same for truetye-based type0 fonts.

Fixes font sizes on e.g. 1800-2017.pdf.
This commit is contained in:
Nico Weber 2024-02-16 19:51:41 -05:00 • committed by Andreas Kling
parent f4a59246f5
commit 05f382fc6e
1 changed files with 12 additions and 1 deletions
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13
Userland/Libraries/LibPDF/Fonts/Type0Font.cpp
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@ -17,6 +17,7 @@ class CIDFontType {
public: public:
virtual ~CIDFontType() = default; virtual ~CIDFontType() = default;
virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) = 0; virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) = 0;
virtual void set_font_size(float) = 0;
}; };
class CIDFontType0 : public CIDFontType { class CIDFontType0 : public CIDFontType {
@ -25,6 +26,8 @@ public:
virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) override; virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) override;
virtual void set_font_size(float) override { }
private: private:
CIDFontType0(RefPtr<Type1FontProgram> font_program) CIDFontType0(RefPtr<Type1FontProgram> font_program)
: m_font_program(move(font_program)) : m_font_program(move(font_program))
@ -115,6 +118,8 @@ public:
virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) override; virtual PDFErrorOr<void> draw_glyph(Gfx::Painter&, Gfx::FloatPoint, float width, u32 cid, Renderer const&) override;
virtual void set_font_size(float) override;
private: private:
CIDFontType2(RefPtr<Gfx::Font> font) CIDFontType2(RefPtr<Gfx::Font> font)
: m_font(move(font)) : m_font(move(font))
@ -195,6 +200,11 @@ PDFErrorOr<void> CIDFontType2::draw_glyph(Gfx::Painter& painter, Gfx::FloatPoint
return {}; return {};
} }
void CIDFontType2::set_font_size(float font_size)
{
m_font = m_font->with_size((font_size * POINTS_PER_INCH) / DEFAULT_DPI);
}
Type0Font::Type0Font() = default; Type0Font::Type0Font() = default;
Type0Font::~Type0Font() = default; Type0Font::~Type0Font() = default;
@ -283,8 +293,9 @@ float Type0Font::get_char_width(u16 char_code) const
return static_cast<float>(width) / 1000.0f; return static_cast<float>(width) / 1000.0f;
} }
void Type0Font::set_font_size(float) void Type0Font::set_font_size(float font_size)
{ {
m_cid_font_type->set_font_size(font_size);
} }
PDFErrorOr<Gfx::FloatPoint> Type0Font::draw_string(Gfx::Painter& painter, Gfx::FloatPoint glyph_position, ByteString const& string, Renderer const& renderer) PDFErrorOr<Gfx::FloatPoint> Type0Font::draw_string(Gfx::Painter& painter, Gfx::FloatPoint glyph_position, ByteString const& string, Renderer const& renderer)