U8G2_Drawer

Class

Source: U8G2_Drawer.h

Inherits from: BaseDrawSurface

Description

Implementation of DrawSurface using the U8G2 library for monochromatic OLED displays.

Inheritance

BaseDrawSurface → U8G2_Drawer

Methods

void init()

void setRotation(uint16_t rotation)

void drawPixel(int x, int y, uint16_t color)

void clearBuffer()

void sendBuffer()

void drawLine(int x1, int y1, int x2, int y2, uint16_t color)

void drawRectangle(int x, int y, int w, int h, uint16_t color)

void drawFilledRectangle(int x, int y, int w, int h, uint16_t color)

void drawCircle(int x0, int y0, int r, uint16_t color)

void drawFilledCircle(int x0, int y0, int r, uint16_t color)

void drawBitmap(int x, int y, int w, int h, const uint8_t *bitmap, uint16_t color)

Description:

Support for U8G2 native XBM bitmaps. Note: This assumes the bitmap is in XBM format if color is 1, otherwise it uses the base implementation.

void setDisplaySize(int w, int h)

void setPhysicalSize(int w, int h)

U8G2* getU8g2() const

void drawTileDirect(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint8_t* data)

uint8_t* getSpriteBuffer()

bool needsScaling() const

Description:

Checks if scaling is needed.

Returns: true if logical != physical resolution.

void buildScaleLUTs()

Description:

Builds the X and Y scaling lookup tables.

void freeScalingBuffers()

Description:

Frees scaling-related memory.

void sendBufferScaled()

Description:

Sends the buffer using software scaling.

inline uint8_t rgb565To1Bit(uint16_t color)

Description:

Internal helper to convert RGB565 to 1-bit monochromatic.

Returns: 1 for "on", 0 for "off".