ove::lvgl::Style Class Reference

RAII wrapper around an lv_style_t object. More...

#include <lvgl.hpp>

Public Member Functions
	Style ()
	Constructs and initialises an empty LVGL style.
	~Style ()
	Destroys the style, releasing any resources held by LVGL.
	Style (const Style &)=delete
Style &	operator= (const Style &)=delete
	Style (Style &&other) noexcept
	Move constructor — transfers the style data and reinitialises the source.
Style &	operator= (Style &&other) noexcept
	Move-assignment operator — transfers the style data and reinitialises the source.
lv_style_t *	get ()
	Returns a mutable pointer to the underlying lv_style_t.
const lv_style_t *	get () const
	Returns a const pointer to the underlying lv_style_t.
Style &	bg_color (lv_color_t c)
	Sets the background color.
Style &	bg_opa (lv_opa_t opa)
	Sets the background opacity.
Style &	radius (int32_t r)
	Sets the corner radius.
Style &	border_color (lv_color_t c)
	Sets the border color.
Style &	border_width (int32_t w)
	Sets the border width in pixels.
Style &	pad_all (int32_t p)
	Sets uniform padding on all four sides.
Style &	text_color (lv_color_t c)
	Sets the text color.
Style &	text_font (const lv_font_t *f)
	Sets the font used to render text.

Detailed Description

RAII wrapper around an lv_style_t object.

Initialises the LVGL style on construction and resets (frees) it on destruction. Provides a fluent, chainable API for the most common style properties. Once populated, a Style can be applied to one or more LVGL objects via lv_obj_add_style().

Note

Non-copyable; movable. On move, the source style is left in a freshly initialised (empty) state rather than null so that LVGL does not hold a dangling pointer.

Constructor & Destructor Documentation

Style()

ove::lvgl::Style::Style ( Style &&  other )

inlinenoexcept

Move constructor — transfers the style data and reinitialises the source.

Parameters

other

The source style; left in a valid, empty state after the move.

Member Function Documentation

operator=()

Style & ove::lvgl::Style::operator= ( Style &&  other )

inlinenoexcept

Move-assignment operator — transfers the style data and reinitialises the source.

Parameters

other

The source style; left in a valid, empty state after the move.

Returns

Reference to this object.

get() [1/2]

lv_style_t * ove::lvgl::Style::get ( )

inline

Returns a mutable pointer to the underlying lv_style_t.

Returns

Pointer to the internal LVGL style struct.

get() [2/2]

const lv_style_t * ove::lvgl::Style::get ( ) const

inline

Returns a const pointer to the underlying lv_style_t.

Returns

Const pointer to the internal LVGL style struct.

bg_color()

Style & ove::lvgl::Style::bg_color ( lv_color_t  c )

inline

Sets the background color.

Parameters

[in]

c

Background color.

Returns

Reference to this style for method chaining.

bg_opa()

Style & ove::lvgl::Style::bg_opa ( lv_opa_t  opa )

inline

Sets the background opacity.

Parameters

[in]

opa

Opacity value (0–255).

Returns

Reference to this style for method chaining.

radius()

Style & ove::lvgl::Style::radius ( int32_t  r )

inline

Sets the corner radius.

Parameters

[in]

r

Radius in pixels.

Returns

Reference to this style for method chaining.

border_color()

Style & ove::lvgl::Style::border_color ( lv_color_t  c )

inline

Sets the border color.

Parameters

[in]

c

Border color.

Returns

Reference to this style for method chaining.

border_width()

Style & ove::lvgl::Style::border_width ( int32_t  w )

inline

Sets the border width in pixels.

Parameters

[in]

w

Border width.

Returns

Reference to this style for method chaining.

pad_all()

Style & ove::lvgl::Style::pad_all ( int32_t  p )

inline

Sets uniform padding on all four sides.

Parameters

[in]

p

Padding in pixels.

Returns

Reference to this style for method chaining.

text_color()

Style & ove::lvgl::Style::text_color ( lv_color_t  c )

inline

Sets the text color.

Parameters

[in]

c

Text color.

Returns

Reference to this style for method chaining.

text_font()

Style & ove::lvgl::Style::text_font ( const lv_font_t *  f )

inline

Sets the font used to render text.

Parameters

[in]

f

Pointer to an LVGL font descriptor.

Returns

Reference to this style for method chaining.

---

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

• bindings/cpp/ove/lvgl.hpp