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https://github.com/sle118/squeezelite-esp32.git
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96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
#ifndef _GDS_FONT_H_
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#define _GDS_FONT_H_
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct GDS_Device;
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/*
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* X-GLCD Font format:
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*
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* First byte of glyph is it's width in pixels.
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* Each data byte represents 8 pixels going down from top to bottom.
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*
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* Example glyph layout for a 16x16 font
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* 'a': [Glyph width][Pixel column 0][Pixel column 1] where the number of pixel columns is the font height divided by 8
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* 'b': [Glyph width][Pixel column 0][Pixel column 1]...
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* 'c': And so on...
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*/
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#pragma pack(push, 1) // Disable padding
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struct GDS_FontDef {
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const void* dummy; // 4 bytes (assuming 32-bit pointers)
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int Width; // 4 bytes
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int Height; // 4 bytes
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int StartChar; // 4 bytes
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int EndChar; // 4 bytes
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bool Monospace; // 1 byte
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uint8_t padding[3]; // 3 bytes padding to align to 24 bytes
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const uint8_t FontData[]; // 4 bytes (assuming 32-bit pointers)
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};
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#pragma pack(pop) // Re-enable padding
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typedef enum {
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TextAnchor_East = 0,
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TextAnchor_West,
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TextAnchor_North,
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TextAnchor_South,
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TextAnchor_NorthEast,
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TextAnchor_NorthWest,
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TextAnchor_SouthEast,
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TextAnchor_SouthWest,
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TextAnchor_Center
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} TextAnchor;
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bool gds_init_fonts();
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const struct GDS_FontDef* GDS_SetFont(struct GDS_Device* Display, const struct GDS_FontDef* Font);
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void GDS_FontForceProportional(struct GDS_Device* Display, bool Force);
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void GDS_FontForceMonospace(struct GDS_Device* Display, bool Force);
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int GDS_FontGetWidth(struct GDS_Device* Display);
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int GDS_FontGetHeight(struct GDS_Device* Display);
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int GDS_FontGetMaxCharsPerRow(struct GDS_Device* Display);
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int GDS_FontGetMaxCharsPerColumn(struct GDS_Device* Display);
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int GDS_FontGetCharWidth(struct GDS_Device* Display, char Character);
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int GDS_FontGetCharHeight(struct GDS_Device* Display);
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int GDS_FontMeasureString(struct GDS_Device* Display, const char* Text);
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int GDS_FontMeasureStringLine(struct GDS_Device* Display, int Line, const char* Text);
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void GDS_FontDrawChar(struct GDS_Device* Display, char Character, int x, int y, int Color);
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void GDS_FontDrawString(struct GDS_Device* Display, int x, int y, const char* Text, int Color);
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void GDS_FontDrawAnchoredString(struct GDS_Device* Display, TextAnchor Anchor, const char* Text, int Color);
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void GDS_FontGetAnchoredStringCoords(struct GDS_Device* Display, int* OutX, int* OutY, TextAnchor Anchor, const char* Text);
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extern struct GDS_FontDef* Font_droid_sans_fallback_11x13;
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// const struct GDS_FontDef * Font_droid_sans_fallback_15x17;
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// const struct GDS_FontDef * Font_droid_sans_fallback_24x28;
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// const struct GDS_FontDef * Font_droid_sans_mono_7x13;
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// const struct GDS_FontDef * Font_droid_sans_mono_13x24;
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// const struct GDS_FontDef * Font_droid_sans_mono_16x31;
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// const struct GDS_FontDef * Font_liberation_mono_9x15;
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// const struct GDS_FontDef * Font_liberation_mono_13x21;
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// const struct GDS_FontDef * Font_liberation_mono_17x30;
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// const struct GDS_FontDef * Font_Tarable7Seg_16x32;
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// const struct GDS_FontDef * Font_Tarable7Seg_32x64;
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extern struct GDS_FontDef* Font_line_1;
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extern struct GDS_FontDef* Font_line_2;
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#ifdef __cplusplus
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}
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#endif
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#endif
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