panorama_handler.hpp

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// SPDX-FileCopyrightText: 2025 Povl Filip Sonne-Frederiksen
//
// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once
 
#include "processing_observer.hpp"
#include "view/viewer_types.hpp"
 
#include <vtkProp.h>
#include <vtkRenderer.h>
#include <vtkSkybox.h>
#include <vtkSmartPointer.h>
 
#include <filesystem>
#include <memory>
#include <vector>
 
namespace rux::view {
 
namespace fs = std::filesystem;

struct PanoramaState {
  bool immersive = false;            
  int active_index = -1;             
  std::vector<PanoramaInfo> infos;   
  vtkSmartPointer<vtkSkybox> skybox; 

  struct SavedView {
    double cam_pos[3], cam_focal[3], cam_up[3];
    std::vector<vtkSmartPointer<vtkProp>>
        hidden_props; 
  } saved;
};

vtkRenderer *
viewport_renderer(const rux::VizualizationObserver::ViewerPtr &viewer,
                  int viewport);

void activate_panorama_skybox(
    const fs::path &db_path, const PanoramaInfo &info,
    vtkSmartPointer<vtkSkybox> &skybox,
    const rux::VizualizationObserver::ViewerPtr &viewer, int viewport);

void deactivate_panorama_skybox(
    const vtkSmartPointer<vtkSkybox> &skybox,
    const rux::VizualizationObserver::ViewerPtr &viewer, int viewport);

void enter_panorama_mode(std::shared_ptr<PanoramaState> state, int pano_index,
                         const fs::path &project_path,
                         const rux::VizualizationObserver::ViewerPtr &viewer,
                         const std::vector<int> &viewports);

void exit_panorama_mode(std::shared_ptr<PanoramaState> state,
                        const rux::VizualizationObserver::ViewerPtr &viewer,
                        const std::vector<int> &viewports);
 
} // namespace rux::view