60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
#ifndef LAYERS_H
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#define LAYERS_H
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#include "definition_global.h"
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#include "DefinitionNode.h"
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namespace paysages {
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namespace definition {
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typedef DefinitionNode *(*LayerConstructor)(Layers *parent);
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/**
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* @brief Layers of definitions, ideally all of the same type.
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*/
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class DEFINITIONSHARED_EXPORT Layers : public DefinitionNode {
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public:
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Layers(DefinitionNode *parent, const std::string &name, LayerConstructor layer_constructor);
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virtual ~Layers();
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virtual void save(PackStream *stream) const override;
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virtual void load(PackStream *stream) override;
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virtual void copy(DefinitionNode *destination) const override;
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Layers *newCopy() const;
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void setMaxLayerCount(int max_layer_count);
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int count() const;
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DefinitionNode *getLayer(int position) const;
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int findLayer(DefinitionNode *layer) const;
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/**
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* @brief Add a new layer
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*
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* This method takes ownership of the layer definition. In any case, it will be deleted by
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* this object (even if the layer could not be added).
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* @return The position of the new layer, -1 if it couldn't be added.
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*/
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int addLayer(DefinitionNode *layer);
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int addLayer();
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void removeLayer(int position);
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void removeLayer(DefinitionNode *layer);
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void moveLayer(int old_position, int new_position);
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void moveLayer(DefinitionNode *layer, int new_position);
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void clear();
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protected:
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virtual DefinitionNode *findChildByName(const std::string name) override;
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public:
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LayerConstructor layer_constructor;
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int max_layer_count;
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std::vector<DefinitionNode *> layers;
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DefinitionNode *null_layer;
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};
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}
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}
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#endif // LAYERS_H
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