62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
// Coded by Bodmer 10/2/18, see license in root directory.
|
|
// This is part of the TFT_eSPI class and is associated with anti-aliased font functions
|
|
|
|
public:
|
|
|
|
// These are for the new anti-aliased fonts
|
|
void loadFont(const uint8_t array[]);
|
|
#ifdef FONT_FS_AVAILABLE
|
|
void loadFont(String fontName, fs::FS &ffs);
|
|
#endif
|
|
void loadFont(String fontName, bool flash = true);
|
|
void unloadFont( void );
|
|
bool getUnicodeIndex(uint16_t unicode, uint16_t *index);
|
|
|
|
virtual void drawGlyph(uint16_t code);
|
|
|
|
void showFont(uint32_t td);
|
|
|
|
// This is for the whole font
|
|
typedef struct
|
|
{
|
|
const uint8_t* gArray; //array start pointer
|
|
uint16_t gCount; // Total number of characters
|
|
uint16_t yAdvance; // Line advance
|
|
uint16_t spaceWidth; // Width of a space character
|
|
int16_t ascent; // Height of top of 'd' above baseline, other characters may be taller
|
|
int16_t descent; // Offset to bottom of 'p', other characters may have a larger descent
|
|
uint16_t maxAscent; // Maximum ascent found in font
|
|
uint16_t maxDescent; // Maximum descent found in font
|
|
} fontMetrics;
|
|
|
|
fontMetrics gFont = { nullptr, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
// These are for the metrics for each individual glyph (so we don't need to seek this in file and waste time)
|
|
uint16_t* gUnicode = NULL; //UTF-16 code, the codes are searched so do not need to be sequential
|
|
uint8_t* gHeight = NULL; //cheight
|
|
uint8_t* gWidth = NULL; //cwidth
|
|
uint8_t* gxAdvance = NULL; //setWidth
|
|
int16_t* gdY = NULL; //topExtent
|
|
int8_t* gdX = NULL; //leftExtent
|
|
uint32_t* gBitmap = NULL; //file pointer to greyscale bitmap
|
|
|
|
bool fontLoaded = false; // Flags when a anti-aliased font is loaded
|
|
|
|
#ifdef FONT_FS_AVAILABLE
|
|
fs::File fontFile;
|
|
fs::FS &fontFS = SPIFFS;
|
|
bool spiffs = true;
|
|
bool fs_font = false; // For ESP32/8266 use smooth font file or FLASH (PROGMEM) array
|
|
|
|
#else
|
|
bool fontFile = true;
|
|
#endif
|
|
|
|
private:
|
|
|
|
void loadMetrics(void);
|
|
uint32_t readInt32(void);
|
|
|
|
uint8_t* fontPtr = nullptr;
|
|
|