AllowedSubtags Struct Reference

Data structure to store the allowed id/type combinations for action 14. More...

Public Member Functions
	AllowedSubtags ()
	Create empty subtags object used to identify the end of a list.
	AllowedSubtags (uint32_t id, DataHandler handler)
	Create a binary leaf node. More...
	AllowedSubtags (uint32_t id, TextHandler handler)
	Create a text leaf node. More...
	AllowedSubtags (uint32_t id, BranchHandler handler)
	Create a branch node with a callback handler. More...
	AllowedSubtags (uint32_t id, AllowedSubtags *subtags)
	Create a branch node with a list of sub-nodes. More...

Data Fields
uint32_t	id
	The identifier for this node.
uint8_t	type
	The type of the node, must be one of 'C', 'B' or 'T'.
union {
DataHandler   data
	Callback function for a binary node, only valid if type == 'B'.
TextHandler   text
	Callback function for a text node, only valid if type == 'T'.
struct {
union {
BranchHandler   branch
	Callback function for a branch node, only valid if type == 'C' && call_handler.
AllowedSubtags *   subtags
	Pointer to a list of subtags, only valid if type == 'C' && !call_handler.
}   u
bool   call_handler
	True if there is a callback function for this node, false if there is a list of subnodes.
}
}	handler

Detailed Description

Data structure to store the allowed id/type combinations for action 14.

The data can be represented as a tree with 3 types of nodes:

1. Branch nodes (identified by 'C' for choice).
2. Binary leaf nodes (identified by 'B').
3. Text leaf nodes (identified by 'T').

Definition at line 8302 of file newgrf.cpp.

Constructor & Destructor Documentation

AllowedSubtags() [1/4]

AllowedSubtags::AllowedSubtags ( uint32_t  id, DataHandler  handler  )

inline

Create a binary leaf node.

Parameters

id	The id for this node.
handler	The callback function to call.

Definition at line 8314 of file newgrf.cpp.

AllowedSubtags() [2/4]

AllowedSubtags::AllowedSubtags ( uint32_t  id, TextHandler  handler  )

inline

Create a text leaf node.

Parameters

id	The id for this node.
handler	The callback function to call.

Definition at line 8326 of file newgrf.cpp.

AllowedSubtags() [3/4]

AllowedSubtags::AllowedSubtags ( uint32_t  id, BranchHandler  handler  )

inline

Create a branch node with a callback handler.

Parameters

id	The id for this node.
handler	The callback function to call.

Definition at line 8338 of file newgrf.cpp.

AllowedSubtags() [4/4]

AllowedSubtags::AllowedSubtags ( uint32_t  id, AllowedSubtags *  subtags  )

inline

Create a branch node with a list of sub-nodes.

Parameters

id	The id for this node.
subtags	Array with all valid subtags.

Definition at line 8351 of file newgrf.cpp.

References subtags.

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The documentation for this struct was generated from the following file:

• src/newgrf.cpp