resource_manager.hpp

// Copyright [2015] Albert Huang

#ifndef SCENEVIEW_RESOURCE_MANAGER_HPP__
#define SCENEVIEW_RESOURCE_MANAGER_HPP__

#include <cstdint>
#include <map>

#include <sceneview/font_resource.hpp>
#include <sceneview/geometry_resource.hpp>
#include <sceneview/material_resource.hpp>
#include <sceneview/shader_resource.hpp>
#include <sceneview/scene.hpp>

namespace sv {

class Scene;

class ResourceManager {
  public:
    typedef std::shared_ptr<ResourceManager> Ptr;

    static const QString kAutoName;

  public:
    static Ptr Create();

    MaterialResource::Ptr MakeMaterial(const ShaderResource::Ptr& shader,
        const QString& name = kAutoName);

    ShaderResource::Ptr MakeShader(const QString& name = kAutoName);

    GeometryResource::Ptr MakeGeometry(const QString& name = kAutoName);

    Scene::Ptr MakeScene(const QString& name = kAutoName);

    FontResource::Ptr Font(const QFont& qfont);

    MaterialResource::Ptr GetMaterial(const QString& name);

    ShaderResource::Ptr GetShader(const QString& name);

    GeometryResource::Ptr GetGeometry(const QString& name);

    void PrintStats();

  private:
    typedef std::weak_ptr<MaterialResource> MaterialResourceWeakPtr;
    typedef std::weak_ptr<ShaderResource> ShaderResourceWeakPtr;
    typedef std::weak_ptr<GeometryResource> GeometryResourceWeakPtr;
    typedef std::weak_ptr<Scene> SceneWeakPtr;
    typedef std::weak_ptr<FontResource> FontResourceWeakPtr;

    ResourceManager();

    void Cleanup();

    QString AutogenerateName();
    QString PickName(const QString& name);
    bool NameExists(const QString& name);

    std::map<QString, MaterialResourceWeakPtr> materials_;
    std::map<QString, ShaderResourceWeakPtr> shaders_;
    std::map<QString, GeometryResourceWeakPtr> geometries_;
    std::map<QString, SceneWeakPtr> scenes_;
    std::map<QString, FontResourceWeakPtr> fonts_;

    int64_t name_counter_;
};

}  // namespace sv

#endif  // SCENEVIEW_RESOURCE_MANAGER_HPP__