model_viewer::ModelManager Class Reference

Class for managing model loading and providing geometry and material. More...

#include <ModelManager.hpp>

Inheritance diagram for model_viewer::ModelManager:

Collaboration diagram for model_viewer::ModelManager:

Signals
void	geometryChanged ()
	Signal emitted when the geometry changes.
void	materialChanged ()
	Signal emitted when the material changes.
void	loadingChanged ()
	Signal emitted when the loading state changes.
void	readyChanged ()
	Signal emitted when the ready state changes.

Public Member Functions
	ModelManager (QObject *parent=nullptr)
	Constructor.
	~ModelManager () override=default
	Destructor.
QQuick3DGeometry *	geometry () const
	Get the geometry of the loaded model.
material::MTLMaterial *	material () const
	Get the material of the loaded model.
Q_INVOKABLE void	loadModel (const QString &filepath)
	Load a model from a file asynchronously.
bool	isLoading () const
	Check if a model is currently loading.
void	setLoading (bool isLoading)
	Set the loading state, emits loadingChanged signal.
bool	isReady () const
	Check if a model is ready.
void	setReady (bool isReady)
	Set the ready state, emits readyChanged signal.
const std::unordered_map< std::string, loaders::ILoader * > &	getLoaders () const

Properties
QQuick3DGeometry *	geometry
model_viewer::material::MTLMaterial *	material
bool	loading
bool	ready

Private Attributes
loaders::ObjLoader	_objLoader
	OBJ loader instance.
std::unordered_map< std::string, loaders::ILoader * >	_loaders
	Map of file extensions to their respective loaders.
loaders::ILoader *	_lastLoaded = &_objLoader
	Pointer to the last used loader.
std::unique_ptr< geometry::ObjGeometry >	_geometry
	Geometry of the currently loaded model.
bool	_loading = false
	Boolean indicating if a model is currently loading.
bool	_ready = false
	Boolean indicating if a model is ready.

Detailed Description

Class for managing model loading and providing geometry and material.

Constructor & Destructor Documentation

ModelManager()

model_viewer::ModelManager::ModelManager ( QObject * parent = nullptr )

explicit

Constructor.

Parameters

parent

Parent QObject, nullptr by default

                                          : QObject(parent) {
    _loaders = {
        {".obj", &_objLoader},
    };
}

References _loaders, and _objLoader.

~ModelManager()

model_viewer::ModelManager::~ModelManager ( )

overridedefault

Destructor.

Member Function Documentation

geometry()

QQuick3DGeometry * model_viewer::ModelManager::geometry ( ) const

inline

Get the geometry of the loaded model.

Returns

Geometry of the loaded model

{ return _lastLoaded->geometry(); };

References _lastLoaded, and model_viewer::loaders::ILoader::geometry().

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geometryChanged

void model_viewer::ModelManager::geometryChanged ( )

signal

Signal emitted when the geometry changes.

Referenced by loadModel().

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getLoaders()

const std::unordered_map< std::string, loaders::ILoader * > & model_viewer::ModelManager::getLoaders ( ) const

inline

              {
        return _loaders;
    };

References _loaders.

isLoading()

bool model_viewer::ModelManager::isLoading ( ) const

inline

Check if a model is currently loading.

Returns

True if a model is loading, false otherwise

{ return _loading; };

References _loading.

Referenced by setLoading().

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isReady()

bool model_viewer::ModelManager::isReady ( ) const

inline

Check if a model is ready.

Returns

True if a model is ready, false otherwise

{ return _ready; };

References _ready.

Referenced by setReady().

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loadingChanged

void model_viewer::ModelManager::loadingChanged ( )

signal

Signal emitted when the loading state changes.

Referenced by setLoading().

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loadModel()

void model_viewer::ModelManager::loadModel

(

const QString &

filepath

)

Load a model from a file asynchronously.

Emits geometryChanged and materialChanged signals upon completion and is invokable from QML

Parameters

filepath

Path to the model file

                                                    {
    const std::string strPath =
        filepath.toStdString().substr(sizeof("file://") - 1);
    const auto pos = strPath.find_last_of('.');
    const std::string ext = strPath.substr(pos);
 
    auto result = QtConcurrent::run([&, strPath, ext] {
        setReady(false);
        _loaders[ext]->loadModel(strPath);
        emit geometryChanged();
        emit materialChanged();
        _lastLoaded = _loaders[ext];
        setReady(true);
    });
}

References _lastLoaded, _loaders, geometryChanged(), materialChanged(), and setReady().

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material()

material::MTLMaterial * model_viewer::ModelManager::material ( ) const

inline

Get the material of the loaded model.

Returns

Material of the loaded model

{ return _lastLoaded->material(); };

References _lastLoaded, and model_viewer::loaders::ILoader::material().

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materialChanged

void model_viewer::ModelManager::materialChanged ( )

signal

Signal emitted when the material changes.

Referenced by loadModel().

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readyChanged

void model_viewer::ModelManager::readyChanged ( )

signal

Signal emitted when the ready state changes.

Referenced by setReady().

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setLoading()

void model_viewer::ModelManager::setLoading

(

bool

isLoading

)

Set the loading state, emits loadingChanged signal.

Parameters

isLoading

New loading state

                                                  {
    _loading = isLoading;
    emit loadingChanged();
}

References _loading, isLoading(), and loadingChanged().

Referenced by setReady().

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setReady()

void model_viewer::ModelManager::setReady

(

bool

isReady

)

Set the ready state, emits readyChanged signal.

Parameters

isReady

New ready state

                                              {
    _ready = isReady;
    emit readyChanged();
    setLoading(!isReady);
}

References _ready, isReady(), readyChanged(), and setLoading().

Referenced by loadModel().

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Member Data Documentation

_geometry

std::unique_ptr<geometry::ObjGeometry> model_viewer::ModelManager::_geometry

private

Geometry of the currently loaded model.

_lastLoaded

loaders::ILoader* model_viewer::ModelManager::_lastLoaded = &_objLoader

private

Pointer to the last used loader.

Referenced by geometry(), loadModel(), and material().

_loaders

std::unordered_map<std::string, loaders::ILoader *> model_viewer::ModelManager::_loaders

private

Map of file extensions to their respective loaders.

Referenced by getLoaders(), loadModel(), and ModelManager().

_loading

bool model_viewer::ModelManager::_loading = false

private

Boolean indicating if a model is currently loading.

Referenced by isLoading(), and setLoading().

_objLoader

loaders::ObjLoader model_viewer::ModelManager::_objLoader

private

OBJ loader instance.

Referenced by ModelManager().

_ready

bool model_viewer::ModelManager::_ready = false

private

Boolean indicating if a model is ready.

Referenced by isReady(), and setReady().

Property Documentation

geometry

QQuick3DGeometry * model_viewer::ModelManager::geometry

read

loading

bool model_viewer::ModelManager::loading

read

material

model_viewer::material::MTLMaterial * model_viewer::ModelManager::material

read

ready

bool model_viewer::ModelManager::ready

read

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

• /github/workspace/include/ModelManager.hpp
• /github/workspace/src/ModelManager.cpp