OpenSpace/modules/globebrowsing/tile/tileprovider/presentationslideprovider.cpp

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 * OpenSpace                                                                             *
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 * Copyright (c) 2014-2017                                                               *
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#include <modules/globebrowsing/geometry/geodetic2.h>
#include <modules/globebrowsing/tile/tileprovider/presentationslideprovider.h>
#include <modules/globebrowsing/tile/tileindex.h>

#include <ghoul/io/texture/texturereader.h>
#include <ghoul/filesystem/filesystem.h>
#include <ghoul/logging/logmanager.h>

#include <openspace/engine/openspaceengine.h>

namespace {
    const std::string _loggerCat = "PresentationSlideProvider";
    
    const std::string KeyDefaultProvider = "DefaultProvider";
    const std::string KeySlideProviders = "SlideProviders";
    const std::string KeyTileIndex = "TileIndex";
    const std::string KeyTileProvider = "TileProvider";
}

namespace openspace {
namespace globebrowsing {
namespace tileprovider {

PresentationSlideProvider::PresentationSlideProvider(const ghoul::Dictionary& dictionary)
    : _slideIndex("slideIndex", "slideIndex", 0, 0, 0)
{
    setName("SlideProvider");
    ghoul::Dictionary defaultProviderDict = dictionary.value<ghoul::Dictionary>(KeyDefaultProvider);
    _defaultProvider = TileProvider::createFromDictionary(defaultProviderDict);

    ghoul::Dictionary tileIndexDict = dictionary.value<ghoul::Dictionary>(KeyTileIndex);
    _tileIndex = TileIndex(tileIndexDict);
        
    ghoul::Dictionary slideProvidersDict = dictionary.value<ghoul::Dictionary>(KeySlideProviders);
    _slideProviders.resize(slideProvidersDict.size());
    for (size_t i = 0; i < slideProvidersDict.size(); i++) {
        std::string dictKey = std::to_string(i + 1);
        ghoul::Dictionary providerDict = slideProvidersDict.value<ghoul::Dictionary>(dictKey);
        _slideProviders[i] = TileProvider::createFromDictionary(providerDict);
    }
        
    _slideIndex.setMaxValue(_slideProviders.size() - 1);
    addProperty(_slideIndex);
}

Tile PresentationSlideProvider::getTile(const TileIndex& tileIndex) {
    if(tileIndex == _tileIndex){
        return slideProvider()->getTile(tileIndex);
    }
    return Tile::TileUnavailable;
        
}

Tile::Status PresentationSlideProvider::getTileStatus(const TileIndex& tileIndex) {
    if(tileIndex == _tileIndex){
        return slideProvider()->getTileStatus(tileIndex);
    }
    return Tile::Status::Unavailable;
}

TileDepthTransform PresentationSlideProvider::depthTransform() {
    return slideProvider()->depthTransform();
}

void PresentationSlideProvider::update() {
    slideProvider()->update();
    _defaultProvider->update();
}

void PresentationSlideProvider::reset() {
    for(auto& tp : _slideProviders){
        tp->reset();
    }
    _defaultProvider->reset();
}

int PresentationSlideProvider::maxLevel() {
    return _defaultProvider->maxLevel();
}

TileProvider* PresentationSlideProvider::slideProvider() {
    int maxIndex = static_cast<int>(_slideProviders.size()) - 1;
    int clampedIndex = std::max(0, std::min(_slideIndex.value(), maxIndex));
    _slideIndex.setValue(clampedIndex);
    return _slideProviders[clampedIndex].get();
}
    
} // namespace tileprovider
} // namespace globebrowsing
} // namespace openspace