Inheritance diagram for cdc::hal::EpaperDisplay:

Public Member Functions
bool	init () override
	Initializes display hardware, backlight, and render task.
bool	start () override
	Starts display service and enables backlight.
void	stop () override
	Stops display service and disables backlight.
core::ServiceState	getState () const override
const char *	getName () const override
void	clear () override
	Clears framebuffer to white.
void	flush (RefreshMode mode) override
	Requests asynchronous display refresh.
void	flushSync (RefreshMode mode) override
	Performs synchronous display refresh.
bool	isBusy () const override
uint16_t	getWidth () const override
uint16_t	getHeight () const override
void	setBacklight (uint16_t level) override
	Sets current backlight level and applies immediately.
void	saveBacklight () override
	Persists current backlight level.
uint16_t	getBacklight () const override
bool	isBacklightOn () const override
void	backlightOn () override
	Enables backlight using current configured level.
void	backlightOff () override
	Disables backlight output.
void *	getNativeHandle () override
void	showSplash (const char *subtitle=nullptr) override
	Renders and displays boot splash screen.
void	drawPixel (int16_t x, int16_t y, uint16_t color) override
	Adafruit-GFX method implementations.
void	drawLine (int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color) override
	Draws a line on framebuffer.
void	drawRect (int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) override
	Draws rectangle outline on framebuffer.
void	fillRect (int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) override
	Draws filled rectangle on framebuffer.
void	setCursor (int16_t x, int16_t y) override
	Sets text cursor position.
void	setTextColor (uint16_t color) override
	Sets active text color.
void	setTextSize (uint8_t size) override
	Sets active text scale.
void	setFont (const void *font) override
	Sets active font pointer.
void	print (const char *text) override
	Prints text at current cursor position.
void	printf (const char *fmt,...) override
	Formatted print helper for display text output.
Public Member Functions inherited from cdc::hal::IDisplay
virtual	~IDisplay ()=default
Public Member Functions inherited from cdc::core::IService
virtual	~IService ()=default

Detailed Description

Simple display wrapper using static functions

Definition at line 173 of file EpaperDisplay.cpp.

Member Function Documentation

◆ backlightOff()

void cdc::hal::EpaperDisplay::backlightOff ( )

overridevirtual

Disables backlight output.

Implements cdc::hal::IDisplay.

Definition at line 400 of file EpaperDisplay.cpp.

References cdc::hal::applyBacklight(), LOG_I, cdc::hal::s_backlightOn, and TAG.

◆ backlightOn()

void cdc::hal::EpaperDisplay::backlightOn ( )

overridevirtual

Enables backlight using current configured level.

Implements cdc::hal::IDisplay.

Definition at line 391 of file EpaperDisplay.cpp.

References cdc::hal::applyBacklight(), LOG_I, cdc::hal::s_backlightLevel, cdc::hal::s_backlightOn, and TAG.

◆ clear()

void cdc::hal::EpaperDisplay::clear ( )

overridevirtual

Clears framebuffer to white.

Implements cdc::hal::IDisplay.

Definition at line 319 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ drawLine()

void cdc::hal::EpaperDisplay::drawLine	(	int16_t	x0,
		int16_t	y0,
		int16_t	x1,
		int16_t	y1,
		uint16_t	color )

overridevirtual

Draws a line on framebuffer.

Parameters

x0	Start x.
y0	Start y.
x1	End x.
y1	End y.
color	Line color.

Implements cdc::hal::IDisplay.

Definition at line 476 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ drawPixel()

void cdc::hal::EpaperDisplay::drawPixel	(	int16_t	x,
		int16_t	y,
		uint16_t	color )

overridevirtual

Adafruit-GFX method implementations.

Draws a single pixel on framebuffer.

Parameters

x	X coordinate.
y	Y coordinate.
color	Pixel color.

Implements cdc::hal::IDisplay.

Definition at line 464 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ drawRect()

void cdc::hal::EpaperDisplay::drawRect	(	int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t	color )

overridevirtual

Draws rectangle outline on framebuffer.

Parameters

x	Left coordinate.
y	Top coordinate.
w	Width.
h	Height.
color	Outline color.

Implements cdc::hal::IDisplay.

Definition at line 488 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ fillRect()

void cdc::hal::EpaperDisplay::fillRect	(	int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t	color )

overridevirtual

Draws filled rectangle on framebuffer.

Parameters

x	Left coordinate.
y	Top coordinate.
w	Width.
h	Height.
color	Fill color.

Implements cdc::hal::IDisplay.

Definition at line 500 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ flush()

void cdc::hal::EpaperDisplay::flush ( RefreshMode mode )

overridevirtual

Requests asynchronous display refresh.

Parameters

mode	Refresh mode.

Implements cdc::hal::IDisplay.

Definition at line 329 of file EpaperDisplay.cpp.

References flushSync(), cdc::hal::refreshStrength(), cdc::hal::s_renderMode, cdc::hal::s_renderMutex, cdc::hal::s_renderPending, and cdc::hal::s_renderTask.

◆ flushSync()

void cdc::hal::EpaperDisplay::flushSync ( RefreshMode mode )

overridevirtual

Performs synchronous display refresh.

Parameters

mode	Refresh mode.

Implements cdc::hal::IDisplay.

Definition at line 354 of file EpaperDisplay.cpp.

References cdc::hal::HEIGHT, cdc::hal::resolveFullRefresh(), cdc::hal::s_epd_display, cdc::hal::s_panelMutex, and cdc::hal::WIDTH.

Referenced by flush().

◆ getBacklight()

uint16_t cdc::hal::EpaperDisplay::getBacklight ( ) const

inlineoverridevirtual

Get current backlight level

Implements cdc::hal::IDisplay.

Definition at line 189 of file EpaperDisplay.cpp.

References cdc::hal::s_backlightLevel.

◆ getHeight()

uint16_t cdc::hal::EpaperDisplay::getHeight ( ) const

inlineoverridevirtual

Implements cdc::hal::IDisplay.

Definition at line 186 of file EpaperDisplay.cpp.

References cdc::hal::HEIGHT.

◆ getName()

const char * cdc::hal::EpaperDisplay::getName ( ) const

inlineoverridevirtual

Get service name (for logging/debugging)

Implements cdc::core::IService.

Definition at line 179 of file EpaperDisplay.cpp.

◆ getNativeHandle()

void * cdc::hal::EpaperDisplay::getNativeHandle ( )

inlineoverridevirtual

Get native display handle (for direct GFX access) Returns Gdey029T94* for the CDC Badge

Implements cdc::hal::IDisplay.

Definition at line 193 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ getState()

core::ServiceState cdc::hal::EpaperDisplay::getState ( ) const

inlineoverridevirtual

Get current service state

Implements cdc::core::IService.

Definition at line 178 of file EpaperDisplay.cpp.

◆ getWidth()

uint16_t cdc::hal::EpaperDisplay::getWidth ( ) const

inlineoverridevirtual

Get display dimensions

Implements cdc::hal::IDisplay.

Definition at line 185 of file EpaperDisplay.cpp.

References cdc::hal::WIDTH.

◆ init()

bool cdc::hal::EpaperDisplay::init ( )

overridevirtual

Initializes display hardware, backlight, and render task.

Returns: true on successful initialization.

Implements cdc::core::IService.

Definition at line 216 of file EpaperDisplay.cpp.

References EPD_LED_PIN, cdc::core::ERROR, cdc::hal::HEIGHT, cdc::core::INITIALIZED, cdc::hal::LEDC_CHANNEL, cdc::hal::LEDC_DUTY_RES, cdc::hal::LEDC_FREQUENCY, cdc::hal::LEDC_MODE, cdc::hal::LEDC_TIMER, cdc::hal::loadBacklight(), LOG_E, LOG_I, cdc::hal::renderTask(), cdc::hal::s_backlightLevel, cdc::hal::s_epd_display, cdc::hal::s_epd_spi, cdc::hal::s_initialized, cdc::hal::s_panelMutex, cdc::hal::s_renderMutex, cdc::hal::s_renderTask, TAG, and cdc::hal::WIDTH.

◆ isBacklightOn()

bool cdc::hal::EpaperDisplay::isBacklightOn ( ) const

inlineoverridevirtual

Check if backlight is on (level > 0)

Implements cdc::hal::IDisplay.

Definition at line 190 of file EpaperDisplay.cpp.

References cdc::hal::s_backlightLevel, and cdc::hal::s_backlightOn.

◆ isBusy()

bool cdc::hal::EpaperDisplay::isBusy ( ) const

inlineoverridevirtual

Check if display is busy (refreshing)

Implements cdc::hal::IDisplay.

Definition at line 184 of file EpaperDisplay.cpp.

References cdc::hal::s_renderPending.

◆ print()

void cdc::hal::EpaperDisplay::print ( const char * text )

overridevirtual

Prints text at current cursor position.

Parameters

text	Null-terminated string.

Implements cdc::hal::IDisplay.

Definition at line 541 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ printf()

void cdc::hal::EpaperDisplay::printf	(	const char *	fmt,
			... )

overridevirtual

Formatted print helper for display text output.

Parameters

fmt	Printf-style format string.

Implements cdc::hal::IDisplay.

Definition at line 549 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ saveBacklight()

void cdc::hal::EpaperDisplay::saveBacklight ( )

overridevirtual

Persists current backlight level.

Implements cdc::hal::IDisplay.

Definition at line 384 of file EpaperDisplay.cpp.

References cdc::hal::persistBacklight(), and cdc::hal::s_backlightLevel.

◆ setBacklight()

void cdc::hal::EpaperDisplay::setBacklight ( uint16_t level )

overridevirtual

Sets current backlight level and applies immediately.

Parameters

level New backlight level.

Implements cdc::hal::IDisplay.

Definition at line 370 of file EpaperDisplay.cpp.

References cdc::hal::applyBacklight(), cdc::hal::BACKLIGHT_MAX, cdc::hal::s_backlightLevel, and cdc::hal::s_backlightOn.

◆ setCursor()

void cdc::hal::EpaperDisplay::setCursor	(	int16_t	x,
		int16_t	y )

overridevirtual

Sets text cursor position.

Parameters

x	Cursor x.
y	Cursor y.

Implements cdc::hal::IDisplay.

Definition at line 509 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ setFont()

void cdc::hal::EpaperDisplay::setFont ( const void * font )

overridevirtual

Sets active font pointer.

Parameters

font	Font pointer cast-compatible with GFXfont.

Implements cdc::hal::IDisplay.

Definition at line 533 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ setTextColor()

void cdc::hal::EpaperDisplay::setTextColor ( uint16_t color )

overridevirtual

Sets active text color.

Parameters

color Text color.

Implements cdc::hal::IDisplay.

Definition at line 517 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ setTextSize()

void cdc::hal::EpaperDisplay::setTextSize ( uint8_t size )

overridevirtual

Sets active text scale.

Parameters

size	Text size factor.

Implements cdc::hal::IDisplay.

Definition at line 525 of file EpaperDisplay.cpp.

References cdc::hal::s_epd_display.

◆ showSplash()

void cdc::hal::EpaperDisplay::showSplash ( const char * subtitle = nullptr )

overridevirtual

Renders and displays boot splash screen.

Parameters

subtitle Optional subtitle override.

Implements cdc::hal::IDisplay.

Definition at line 410 of file EpaperDisplay.cpp.

References LOG_I, cdc::hal::s_epd_display, SPLASH_TITLE, SPLASH_VERSION, and TAG.

◆ start()

bool cdc::hal::EpaperDisplay::start ( )

overridevirtual

Starts display service and enables backlight.

Returns: true if display is started after the call.

Implements cdc::core::IService.

Definition at line 295 of file EpaperDisplay.cpp.

References cdc::hal::applyBacklight(), cdc::core::INITIALIZED, cdc::hal::s_backlightLevel, cdc::hal::s_backlightOn, and cdc::core::STARTED.

◆ stop()

void cdc::hal::EpaperDisplay::stop ( )

overridevirtual

Stops display service and disables backlight.

Implements cdc::core::IService.

Definition at line 308 of file EpaperDisplay.cpp.

References cdc::hal::applyBacklight(), cdc::hal::s_backlightOn, cdc::core::STARTED, and cdc::core::STOPPED.

The documentation for this class was generated from the following file:

components/cdc_hal/src/EpaperDisplay.cpp

Public Member Functions

Detailed Description

Member Function Documentation

◆ backlightOff()

◆ backlightOn()

◆ clear()

◆ drawLine()

◆ drawPixel()

◆ drawRect()

◆ fillRect()

◆ flush()

◆ flushSync()

◆ getBacklight()

◆ getHeight()

◆ getName()

◆ getNativeHandle()

◆ getState()

◆ getWidth()

◆ init()

◆ isBacklightOn()

◆ isBusy()

◆ print()

◆ printf()

◆ saveBacklight()

◆ setBacklight()

◆ setCursor()

◆ setFont()

◆ setTextColor()

◆ setTextSize()

◆ showSplash()

◆ start()

◆ stop()