lmgl::ui::Panel Class Reference

Panel UI element for rendering colored rectangles. More...

#include <panel.hpp>

Inheritance diagram for lmgl::ui::Panel:

Public Member Functions
	Panel (const std::string &name="Panel")
	Constructor for Panel.
	~Panel () override=default
	Destructor for Panel.
void	set_color (const glm::vec4 &color)
	Set the background color of the panel.
const glm::vec4 &	get_color () const
	Get the background color of the panel.
void	render (float canvas_width, float canvas_height, const glm::mat4 &projection) override
	Render the panel.
Public Member Functions inherited from lmgl::ui::UIElement
	UIElement (const std::string &name="UIElement")
	Constructor for UIElement.
virtual	~UIElement ()=default
	Virtual destructor.
void	set_position (const glm::vec2 &position)
	Set the position of the UI element.
void	set_size (const glm::vec2 &size)
	Set the size of the UI element.
void	set_anchor (Anchor anchor)
	Set the anchor of the UI element.
void	set_render_order (int order)
	Set the render order (z-index).
void	set_visible (bool visible)
	Set visibility of the UI element.
void	set_name (const std::string &name)
	Set the name of the UI element.
const glm::vec2 &	get_position () const
	Get the position of the UI element.
const glm::vec2 &	get_size () const
	Get the size of the UI element.
Anchor	get_anchor () const
	Get the anchor of the UI element.
int	get_render_order () const
	Get the render order.
bool	is_visible () const
	Check if the UI element is visible.
const std::string &	get_name () const
	Get the name of the UI element.
std::shared_ptr< UIElement >	get_parent () const
	Get the parent UI element.
void	add_child (const std::shared_ptr< UIElement > child)
	Add a child UI element.
void	remove_child (const std::shared_ptr< UIElement > child)
	Remove a child UI element.
std::vector< std::shared_ptr< UIElement > >	get_children () const
	Get all child UI elements.
glm::vec2	get_absolute_position (float canvas_width, float canvas_height) const
	Compute the absolute screen position based on anchor and parent.

Additional Inherited Members
Protected Attributes inherited from lmgl::ui::UIElement
std::string	m_name
	Name of the UI element.
glm::vec2	m_position {0.0f, 0.0f}
	Position in pixels (relative to anchor).
glm::vec2	m_size {100.0f, 100.0f}
	Size in pixels.
Anchor	m_anchor {Anchor::TopLeft}
	Anchor preset.
int	m_render_order {0}
	Render order (z-index).
bool	m_visible {true}
	Visibility flag.
std::weak_ptr< UIElement >	m_parent
	Parent UI element.
std::vector< std::shared_ptr< UIElement > >	m_children
	Child UI elements.

Detailed Description

Panel UI element for rendering colored rectangles.

The Panel class provides a basic colored rectangle UI element with configurable background color and optional transparency.

Constructor & Destructor Documentation

Panel()

lmgl::ui::Panel::Panel

(

const std::string &

name = "Panel"

)

Constructor for Panel.

Parameters

name	Optional name for the panel.

Member Function Documentation

get_color()

const glm::vec4 & lmgl::ui::Panel::get_color ( ) const

inline

Get the background color of the panel.

Returns

RGBA color.

render()

void lmgl::ui::Panel::render ( float canvas_width, float canvas_height, const glm::mat4 & projection )

overridevirtual

Render the panel.

Parameters

canvas_width	Width of the canvas in pixels.
canvas_height	Height of the canvas in pixels.
projection	Projection matrix for UI rendering.

Implements lmgl::ui::UIElement.

set_color()

void lmgl::ui::Panel::set_color ( const glm::vec4 & color )

inline

Set the background color of the panel.

Parameters

color

RGBA color (values 0.0-1.0).

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

• include/lmgl/ui/panel.hpp
• src/ui/panel.cpp