API reference - Class LayerMappingNotation used in Ruby API documentation Description: A layer mapping (source to target layout) A layer mapping is an association of layers in two layouts forming pairs of layers, i.e. one layer corresponds to another layer in the other layout. The LayerMapping object describes the mapping of layers of a source layout A to a target layout B. A layer mapping can be set up manually or using the methods create or create_full. lm = RBA::LayerMapping::new # explicit: lm.map(2, 1) # map layer index 2 of source to 1 of target lm.map(7, 3) # map layer index 7 of source to 3 of target ... # or employing the specification identity: lm.create(target_layout, source_layout) # plus creating layers which don't exist in the target layout yet: new_layers = lm.create_full(target_layout, source_layout) A layer might not be mapped to another layer which basically means that there is no corresponding layer. Such layers will be ignored in operations using the layer mapping. Use create_full to ensure all layers of the source layout are mapped. LayerMapping objects play a role mainly in the hierarchical copy or move operations of Layout. However, use is not restricted to these applications. This class has been introduced in version 0.23. Public constructors
Public methods
Detailed description[const] void assign(const LayerMapping other)Description: Assign the contents of another object to self This method assigns the contents of another object to self. This is a deep copy that does not only copy the reference but the actual content. void clearDescription: Clears the mapping. void create(const Layout layout_a,const Layout layout_b)Description: Initialize the layer mapping from two layouts
The layer mapping is created by looking up each layer of layout_b in layout_a. All layers with matching specifications (LayerInfo) are mapped. Layouts without a layer/datatype/name specification will not be mapped. create_full is a version of this method which creates new layers in layout_a if no corresponding layer is found. void createDescription: Ensures the C++ object is created Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created. unsigned int[] create_full(Layout layout_a,const Layout layout_b)Description: Initialize the layer mapping from two layouts
The layer mapping is created by looking up each layer of layout_b in layout_a. All layers with matching specifications (LayerInfo) are mapped. Layouts without a layer/datatype/name specification will not be mapped. Layers with a valid specification which are not found in layout_a are created there. void destroyDescription: Explicitly destroy the object Explicitly destroy the object on C++ side if it was owned by the Ruby interpreter. Subsequent access to this object will throw an exception. If the object is not owned by Ruby, this method will do nothing. [const] bool destroyed?Description: Returns a value indicating whether the object was already destroyed This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself. [const] LayerMapping dupDescription: Creates a copy of self [const] bool has_mapping?(unsigned int layer_index_b)Description: Determine if a layer in layout_b has a mapping to a layout_a layer.
[const] bool is_const_object?Description: Returns a value indicating whether the reference is a const reference This method returns true, if self is a const reference. In that case, only const methods may be called on self. [const] unsigned int layer_mapping(unsigned int layer_index_b)Description: Determine layer mapping of a layout_b layer to the corresponding layout_a layer.
void map(unsigned int layer_index_b,unsigned int layer_index_a)Description: Explicitly specify a mapping.
Beside using the mapping generator algorithms provided through create and create_full, it is possible to explicitly specify layer mappings using this method. [static] LayerMapping newDescription: Creates a new object of this class |