Justin Mitchell
0848649ce2
Document migration plan from CrossPoint's lib/Epub to FreeInkBook, a memory-efficient clean-room EPUB engine. Covers advantages (O(paragraph+page) memory via SAX parsing, arena allocation, host-testable, full UAX#14 typography, runtime TTF/OTF support), 9-step migration strategy, ESP32-C3 constraints, and integration approach preserving existing UI layer while replacing parsing/layout stack.
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
#include "EpdFontFamily.h"
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const EpdFont* EpdFontFamily::getFont(const Style style) const {
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// Extract font style bits; render-time overlay bits do not affect font selection.
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const bool hasBold = (style & BOLD) != 0;
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const bool hasItalic = (style & ITALIC) != 0;
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if (hasBold && hasItalic) {
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if (boldItalic) return boldItalic;
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if (bold) return bold;
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if (italic) return italic;
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} else if (hasBold && bold) {
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return bold;
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} else if (hasItalic && italic) {
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return italic;
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}
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return regular;
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}
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void EpdFontFamily::getTextDimensions(const char* string, int* w, int* h, const Style style) const {
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getFont(style)->getTextDimensions(string, w, h);
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}
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const EpdFontData* EpdFontFamily::getData(const Style style) const { return getFont(style)->data; }
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const EpdGlyph* EpdFontFamily::getGlyph(const uint32_t cp, const Style style) const {
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return getFont(style)->getGlyph(cp);
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}
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bool EpdFontFamily::hasGlyph(const uint32_t cp, const Style style) const {
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return getFont(style)->hasGlyph(cp);
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}
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int8_t EpdFontFamily::getKerning(const uint32_t leftCp, const uint32_t rightCp, const Style style) const {
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return getFont(style)->getKerning(leftCp, rightCp);
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}
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uint32_t EpdFontFamily::getLigature(const uint32_t leftCp, const uint32_t rightCp, const Style style) const {
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return getFont(style)->getLigature(leftCp, rightCp);
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}
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uint32_t EpdFontFamily::applyLigatures(const uint32_t cp, const char*& text, const Style style) const {
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return getFont(style)->applyLigatures(cp, text);
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}
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