osb/source/rendering/StarFontTextureGroup.hpp

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#pragma once
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#include "StarColor.hpp"
#include "StarFont.hpp"
#include "StarRenderer.hpp"
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#include "StarDirectives.hpp"
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namespace Star {
STAR_CLASS(FontTextureGroup);
class FontTextureGroup {
public:
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// Font* is only included for key uniqueness and should not be dereferenced
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typedef tuple<String::Char, unsigned, size_t, Font*> GlyphDescriptor;
struct GlyphTexture {
TexturePtr texture;
int64_t time;
Vec2F offset;
};
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FontTextureGroup(TextureGroupPtr textureGroup);
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const GlyphTexture& glyphTexture(String::Char, unsigned fontSize, Directives const* processingDirectives = nullptr);
TexturePtr glyphTexturePtr(String::Char, unsigned fontSize);
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TexturePtr glyphTexturePtr(String::Char, unsigned fontSize, Directives const* processingDirectives = nullptr);
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unsigned glyphWidth(String::Char c, unsigned fontSize);
// Removes glyphs that haven't been used in more than the given time in
// milliseconds
void cleanup(int64_t timeout);
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// Switches the current font
void switchFont(String const& font);
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String const& activeFont();
void addFont(FontPtr const& font, String const& name, bool isDefault = false);
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void clearFonts();
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private:
CaseInsensitiveStringMap<FontPtr> m_fonts;
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String m_fontName;
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FontPtr m_font;
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FontPtr m_defaultFont;
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TextureGroupPtr m_textureGroup;
HashMap<GlyphDescriptor, GlyphTexture> m_glyphs;
};
}