comparison: src/polygoncache.cpp
src/polygoncache.cpp
- changeset 150
- b6cbba6e29a1
- child 152
- 03f8e6d42e13
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| 148:e1ced2523cad | 150:b6cbba6e29a1 |
|---|---|
| 1 #include "polygoncache.h" | |
| 2 #include "documentmanager.h" | |
| 3 | |
| 4 PolygonCache::PolygonCache(Model *model) : | |
| 5 model{model} | |
| 6 { | |
| 7 const auto mark = [this](){ this->needRecache = true; }; | |
| 8 connect(model, &Model::dataChanged, mark); | |
| 9 connect(model, &Model::objectAdded, mark); | |
| 10 connect(model, &Model::objectRemoved, mark); | |
| 11 } | |
| 12 | |
| 13 /** | |
| 14 * @brief Gets a list of GL polygons that are used to represent this model. | |
| 15 * @details Will build polygons if polygons are outdated. | |
| 16 * @param documents Documents to use to resolve subfile references | |
| 17 * @return vector of GL polygons | |
| 18 */ | |
| 19 std::vector<gl::Polygon> PolygonCache::getPolygons(DocumentManager* documents) | |
| 20 { | |
| 21 if (this->needRecache) | |
| 22 { | |
| 23 this->cachedPolygons.clear(); | |
| 24 const std::optional<ModelId> modelId = documents->findIdForModel(this->model); | |
| 25 if (modelId.has_value()) | |
| 26 { | |
| 27 ldraw::GetPolygonsContext context{modelId.value(), documents}; | |
| 28 for (int i = 0; i < this->model->size(); i += 1) | |
| 29 { | |
| 30 this->getObjectPolygons(i, this->cachedPolygons, &context); | |
| 31 } | |
| 32 } | |
| 33 this->needRecache = false; | |
| 34 } | |
| 35 return this->cachedPolygons; | |
| 36 } | |
| 37 | |
| 38 /** | |
| 39 * @brief Gets the GL polygons of the object at the specified position in the model | |
| 40 * @param index Index of object in the model | |
| 41 * @param polygons_out Vector to add polygons into | |
| 42 * @param context Context to use to resolve subfile references | |
| 43 */ | |
| 44 void PolygonCache::getObjectPolygons( | |
| 45 const int index, | |
| 46 std::vector<gl::Polygon>& polygons_out, | |
| 47 ldraw::GetPolygonsContext* context) const | |
| 48 { | |
| 49 const ldraw::Object* object = (*this->model)[unsigned_cast(index)]; | |
| 50 object->getPolygons(polygons_out, context); | |
| 51 } |
