cdc::ui::QRCodeView Class Reference

#include <QRCodeView.h>

Inheritance diagram for cdc::ui::QRCodeView:

Public Member Functions
void	init (const char *data, const char *title=nullptr, const char *subtitle=nullptr)
	Initializes QR code content and layout state.
void	setHint (const char *hint)
void	render (bool partial) override
	Renders the complete QR code view.
InputResult	onKey (char key) override
	Handles key input by closing the QR view.
const char *	getName () const override
const char *	getFooterHint () const override
	Returns footer hint text.
Public Member Functions inherited from cdc::ui::ViewBase
virtual	~ViewBase ()=default
void	onEnter (void *context) override
void	onExit () override
void	onResume () override
void	onPause () override
void	setLifecycleHooks (void(*onHide)(void *), void(*onShow)(void *), void *userData) override
bool	needsRender () const override
void	markDirty () override
void	clearDirty () override
void	setFooterHint (const char *hint) override
const char *	getFooterHint () const override
Public Member Functions inherited from cdc::ui::IView
virtual	~IView ()=default
virtual bool	prefersLightRefresh () const
virtual InputResult	onLongPress (char key)
virtual void	onTick (uint32_t nowMs)

Additional Inherited Members
Protected Member Functions inherited from cdc::ui::ViewBase
void	setTitle (const char *title)
const char *	getTitle () const
Protected Attributes inherited from cdc::ui::ViewBase
bool	dirty_ = true
const char *	title_ = nullptr
const char *	customFooter_ = nullptr
void(*	onHide_ )(void *) = nullptr
void(*	onShow_ )(void *) = nullptr
void *	lifecycleUserData_ = nullptr

Detailed Description

QRCodeView - Display QR codes with optional title/subtitle

Renders QR code on the left side of the display, maximizing size. Title and subtitle displayed on the right side.

Uses two-pass rendering:

1. Sizing pass: Determine QR module count
2. Render pass: Draw QR at optimal scale

Keys: Any = Back (close view)

Definition at line 21 of file QRCodeView.h.

Member Function Documentation

getFooterHint()

const char * cdc::ui::QRCodeView::getFooterHint ( ) const

overridevirtual

Returns footer hint text.

Returns

Footer hint string.

Reimplemented from cdc::ui::IView.

Definition at line 118 of file QRCodeView.cpp.

References cdc::ui::tr().

getName()

const char * cdc::ui::QRCodeView::getName ( ) const

inlineoverridevirtual

Get view name for debugging

Implements cdc::ui::IView.

Definition at line 39 of file QRCodeView.h.

init()

void cdc::ui::QRCodeView::init	(	const char *	data,
		const char *	title = nullptr,
		const char *	subtitle = nullptr )

Initializes QR code content and layout state.

Initialize QR code view

Parameters

data	Data to encode in QR code
title	Optional title (displayed right of QR)
subtitle	Optional subtitle (displayed below title)
data	QR payload text.
title	Optional title text.
subtitle	Optional subtitle text.

Returns

void

Definition at line 87 of file QRCodeView.cpp.

References cdc::ui::ViewBase::dirty_, LOG_D, and cdc::ui::TAG.

onKey()

InputResult cdc::ui::QRCodeView::onKey ( char key )

overridevirtual

Handles key input by closing the QR view.

Parameters

key	Pressed key code.

Returns

Always requests pop from view stack.

Implements cdc::ui::IView.

Definition at line 107 of file QRCodeView.cpp.

References cdc::ui::CONSUMED, and cdc::ui::REQUEST_POP.

render()

void cdc::ui::QRCodeView::render ( bool partial )

overridevirtual

Renders the complete QR code view.

Parameters

partial

Indicates partial/full redraw mode.

Returns

void

Implements cdc::ui::IView.

Definition at line 304 of file QRCodeView.cpp.

References cdc::ui::ViewBase::dirty_, cdc::ui::display, cdc::hal::getDisplayInstance(), cdc::ui::render::printText(), and cdc::ui::tr().

setHint()

void cdc::ui::QRCodeView::setHint ( const char * hint )

inline

Set hint text for footer

Definition at line 34 of file QRCodeView.h.

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

• components/cdc_views/include/cdc_views/QRCodeView.h
• components/cdc_views/src/QRCodeView.cpp