mirror of
https://github.com/daveallie/crosspoint-reader.git
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68ce6db291
Allow users to select custom fonts (.epdfont files) from the /.crosspoint/fonts/ directory on the SD card for EPUB/TXT reading. Features: - New FontSelectionActivity for browsing and selecting fonts - SdFont and SdFontFamily classes for loading fonts from SD card - Dynamic font reloading without device reboot - Reader cache invalidation when font changes - Hash-based font ID generation for proper cache management The custom fonts use the .epdfont binary format which supports: - 2-bit antialiasing for smooth text rendering - Efficient on-demand glyph loading with LRU cache - Memory-optimized design for ESP32-C3 constraints
35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
#pragma once
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#include "EpdFont.h"
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class EpdFontFamily {
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public:
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enum Style : uint8_t { REGULAR = 0, BOLD = 1, ITALIC = 2, BOLD_ITALIC = 3 };
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explicit EpdFontFamily(const EpdFont* regular, const EpdFont* bold = nullptr, const EpdFont* italic = nullptr,
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const EpdFont* boldItalic = nullptr)
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: regular(regular), bold(bold), italic(italic), boldItalic(boldItalic) {}
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~EpdFontFamily() = default;
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void getTextDimensions(const char* string, int* w, int* h, Style style = REGULAR) const;
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bool hasPrintableChars(const char* string, Style style = REGULAR) const;
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const EpdFontData* getData(Style style = REGULAR) const;
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const EpdGlyph* getGlyph(uint32_t cp, Style style = REGULAR) const;
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// Check if bold variant is available (for synthetic bold decision)
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bool hasBold() const { return bold != nullptr; }
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private:
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const EpdFont* regular;
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const EpdFont* bold;
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const EpdFont* italic;
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const EpdFont* boldItalic;
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const EpdFont* getFont(Style style) const;
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};
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// Global typedef for use outside class scope (needed by SdFontFamily and GfxRenderer)
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using EpdFontStyle = EpdFontFamily::Style;
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constexpr EpdFontStyle REGULAR = EpdFontFamily::REGULAR;
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constexpr EpdFontStyle BOLD = EpdFontFamily::BOLD;
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constexpr EpdFontStyle ITALIC = EpdFontFamily::ITALIC;
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constexpr EpdFontStyle BOLD_ITALIC = EpdFontFamily::BOLD_ITALIC;
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