FilesystemWidget.hpp

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#pragma once
 
#include <functional>
 
#include <imgui.h>
 
#include <AssetManager/Texture.hpp>
#include <Components/NameComponent.hpp>
#include <ECS/Registry.hpp>
#include <UI/Widget.hpp>
#include <Utils/AssetUtils.hpp>
 
namespace shkyera {
 
class FilesystemWidget : public Widget {
 public:
  FilesystemWidget(std::string name, std::shared_ptr<Registry> registry);
 
  virtual void draw() override;
 
 private:
  void drawDirectoryTree(AssetHandle directoryHandle);
 
  void drawDirectoryContents();
 
  void drawDirectory(AssetHandle directoryHandle);
 
  template <typename AssetType>
  void drawAsset(AssetHandle handle) {
    const auto& fileName = _registry->getComponent<NameComponent>(handle).getName();
 
    ImGui::BeginGroup();
    ImGui::PushID(fileName.c_str());
 
    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
 
    drawAssetIcon<AssetType>(handle);
 
    const auto assetTypeName = std::string(typeid(AssetType).name());
    if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
      ImGui::TextUnformatted(fileName.c_str());
      ImGui::SetDragDropPayload(("ASSET_" + assetTypeName).c_str(), reinterpret_cast<void*>(&handle),
                                sizeof(AssetHandle));
      ImGui::EndDragDropSource();
    }
    _hoveredIcon |= ImGui::IsItemHovered();
 
    ImGui::PopStyleColor();
 
    drawIconName(fileName);
 
    ImGui::PopID();
    ImGui::EndGroup();
  }
 
  template <typename AssetType>
  void drawAssetIcon(AssetHandle handle);
 
  void drawIconName(const std::string& name) const;
 
  void handleRightMouseClick();
 
  static constexpr float CONTENTS_ICON_SIZE = 64;  
 
  std::shared_ptr<Registry> _registry;
  AssetHandle _rootDirectoryHandle;
  AssetHandle _currentDirectoryHandle;
  AssetRef<Texture> _folderIcon;
  AssetRef<Texture> _pythonIcon;
  AssetRef<Texture> _imageIcon;
  AssetRef<Texture> _textIcon;
  AssetRef<Texture> _audioIcon;
  bool _hoveredIcon;
};
 
}  // namespace shkyera