Basic structures of canvas gfx library. More...

#include "canvas/UserSettings.h"
#include <stdint.h>
#include <stddef.h>

Include dependency graph for canvas_types.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	SFontHeaderRecord
	Structure describes font format in memory. More...

struct	SFixedFontInfo
	Structure is used for internal font presentation. More...

struct	SCharInfo
	Structure describes single char information. More...

struct	SAppMenu
	Describes menu object. More...

Macros
#define	SSD1306_MORE_CHARS_REQUIRED 0xffff
	Flag means that more chars are required to decode utf-8.

#define	RGB_COLOR8(r, g, b) ((r & 0xE0) \| ((g >> 3) & 0x1C) \| (b >> 6))
	Macro to generate 8-bit color.

#define	GRAY_COLOR4(gray) (((gray >> 4) & 0x0F) \| (gray & 0xF0))
	Macro to generate 4-bit monochrome color from gray component.

#define	RGB_COLOR4(r, g, b) ((r >> 2) + (g >> 1) + (b >> 2))
	Macro to generate 4-bit monochrome color from RGB.

#define	RGB8_TO_GRAY4(rgb) ((rgb >> 6) + ((rgb >> 2) & 0x07) + (rgb & 0x03))
	Macro to convert 8-bit RGB to 4-bit monochrome format.

#define	RGB_COLOR16(r, g, b) (((r << 8) & 0xF800) \| ((g << 3) & 0x07E0) \| (b >> 3))
	Macro to generate 16-bit RGB color.

#define	RGB8_TO_RGB16(c) ((((uint16_t)c & 0b11100000) << 8) \| (((uint16_t)c & 0b00011100) << 6) \| (((uint16_t)c & 0b00000011) << 3))
	Macro to convert 3-3-2 color to 5-6-5 color.

#define	RGB16_TO_RGB8(c) (((uint16_t)(c >> 8) & 0b11100000) \| ((uint16_t)(c >> 6) & 0b00011100) \| ((uint16_t)(c >> 3) & 0b00000011))
	Macro to convert 5-6-5 color to 3-3-2 color.

Typedefs
typedef int8_t	lcdint_t
	internal int type, used by the library. More...

typedef uint8_t	lcduint_t
	internal int type, used by the library. More...

Enumerations
enum	EFontStyle { STYLE_NORMAL, STYLE_BOLD, STYLE_ITALIC }
	Supported font styles.

enum	{ CANVAS_MODE_BASIC = 0x00, CANVAS_TEXT_WRAP = 0x01, CANVAS_MODE_TRANSPARENT = 0x02, CANVAS_TEXT_WRAP_LOCAL = 0x04 }

enum	EFontSize { FONT_SIZE_NORMAL = 0, FONT_SIZE_2X = 1, FONT_SIZE_4X = 2, FONT_SIZE_8X = 3 }
	Supported scale font values.

Detailed Description

Basic structures of canvas gfx library.

Definition in file canvas_types.h.

Typedef Documentation

typedef int8_t lcdint_t

internal int type, used by the library.

Important for uC with low SRAM

Definition at line 77 of file canvas_types.h.

typedef uint8_t lcduint_t

internal int type, used by the library.

Important for uC with low SRAM

Definition at line 79 of file canvas_types.h.

anonymous enum

Enumerator
CANVAS_TEXT_WRAP	If the flag is specified, text cursor is moved to new line when end of screen is reached.
CANVAS_MODE_TRANSPARENT	This flag make bitmaps transparent (Black color)
CANVAS_TEXT_WRAP_LOCAL	If the flag is specified, text cursor is moved to new line when end of canvas is reached.

Definition at line 95 of file canvas_types.h.