FontManager Class Reference

Manages application fonts using a singleton pattern. More...

#include <font_manager.h>

Inheritance diagram for FontManager:

Collaboration diagram for FontManager:

Public Member Functions
QFont	GetFont (const QString &font_name, int point_size=10, int weight=QFont::Normal)
	Creates a QFont object with the specified logical name, size, and weight.
QString	GetFontFamily (const QString &font_name)
	Retrieves the actual font family name associated with a logical font name.
bool	Initialize ()
	Initializes the FontManager by loading fonts from predefined paths.

Static Public Member Functions
static FontManager *	GetInstance ()
	Gets the singleton instance of the FontManager.

Private Member Functions
	FontManager (QObject *parent=nullptr)
	Private constructor to enforce the singleton pattern.
bool	LoadFont (const QString &font_name, const QString &font_path)
	Loads a single font file into the application using QFontDatabase.
	~FontManager () override=default
	Private default destructor.

Private Attributes
QMap< QString, QString >	font_families_
	Map storing the mapping between logical font names and actual font family names.

Static Private Attributes
static FontManager *	instance_ = nullptr
	Static pointer to the singleton instance.

Detailed Description

Manages application fonts using a singleton pattern.

This class is responsible for loading fonts from specified directories and providing access to them throughout the application. It ensures that fonts are loaded only once.

Constructor & Destructor Documentation

FontManager()

FontManager::FontManager ( QObject * parent = nullptr )

inlineexplicitprivate

Private constructor to enforce the singleton pattern.

Parameters

parent

Optional parent QObject.

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~FontManager()

FontManager::~FontManager ( )

overrideprivatedefault

Private default destructor.

Member Function Documentation

GetFont()

QFont FontManager::GetFont	(	const QString &	font_name,
		int	point_size = 10,
		int	weight = QFont::Normal )

Creates a QFont object with the specified logical name, size, and weight.

Uses GetFontFamily to resolve the logical name and then construct a QFont object.

Parameters

font_name	The logical name of the font.
point_size	The desired point size for the font. Defaults to 10.
weight	The desired font weight (e.g., QFont::Normal, QFont::Bold). Defaults to QFont::Normal.

Returns

A QFont object configured with the specified parameters.

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GetFontFamily()

QString FontManager::GetFontFamily

(

const QString &

font_name

)

Retrieves the actual font family name associated with a logical font name.

If the requested logical font name is found, its corresponding system family name is returned. Otherwise, a warning is logged, and the default system font family is returned.

Parameters

font_name

The logical name of the font (e.g., "BlenderPro", "Lato").

Returns

The actual font family name (e.g., "Blender Pro Book") or the default font family name if not found.

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GetInstance()

FontManager * FontManager::GetInstance ( )

static

Gets the singleton instance of the FontManager.

Returns

Pointer to the singleton FontManager instance.

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Initialize()

bool FontManager::Initialize

(

)

Initializes the FontManager by loading fonts from predefined paths.

Searches for font files (.ttf) within specific subdirectories ("BlenderPro", "Lato", "Poppins") located in resource paths (application resources, relative paths).

Returns

True if all expected font families were loaded successfully, false otherwise.

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LoadFont()

bool FontManager::LoadFont ( const QString & font_name, const QString & font_path )

private

Loads a single font file into the application using QFontDatabase.

Attempts to add the font file at the given path. If successful, it retrieves the font family name and stores the mapping in font_families_.

Parameters

font_name	The logical name to associate with this font.
font_path	The path to the font file (.ttf).

Returns

True if the font was loaded successfully and a family name was retrieved, false otherwise.

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Member Data Documentation

font_families_

QMap<QString, QString> FontManager::font_families_

private

Map storing the mapping between logical font names and actual font family names.

Key: Logical font name (e.g., "Poppins").

Value: Actual font family name loaded by QFontDatabase (e.g., "Poppins Regular").

instance_

FontManager * FontManager::instance_ = nullptr

staticprivate

Static pointer to the singleton instance.

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

• src/app/managers/font_manager.h
• src/app/managers/font_manager.cpp