+
−/* $Id$ */
+
−#include "stdafx.h"
+
−
+
−#include "openttd.h"
+
−#include "engine.h"
+
−
+
−#include <new>
+
−#include "misc/blob.hpp"
+
−
+
−/* Engine list manipulators - current implementation is only C wrapper around CBlobT<EngineID> (see yapf/blob.hpp) */
+
−
+
−/* we cannot expose CBlobT directly to C so we must cast EngineList* to CBlobT<EngineID>* always when we are called from C */
+
−#define B (*(CBlobT<EngineID>*)el)
+
−
+
−/** Create Engine List (and initialize it to empty) */
+
−void EngList_Create(EngineList *el)
+
−{
+
−	// call CBlobT constructor explicitly
+
−	new (&B) CBlobT<EngineID>();
+
−}
+
−
+
−/** Destroy Engine List (and free its contents) */
+
−void EngList_Destroy(EngineList *el)
+
−{
+
−	// call CBlobT destructor explicitly
+
−	B.~CBlobT<EngineID>();
+
−}
+
−
+
−/** Return number of items stored in the Engine List */
+
−uint EngList_Count(const EngineList *el)
+
−{
+
−	return B.Size();
+
−}
+
−
+
−/** Add new item at the end of Engine List */
+
−void EngList_Add(EngineList *el, EngineID eid)
+
−{
+
−	B.Append(eid);
+
−}
+
−
+
−/** Return pointer to the items array held by Engine List */
+
−EngineID* EngList_Items(EngineList *el)
+
−{
+
−	return B.Data();
+
−}
+
−
+
−/** Clear the Engine List (by invalidating all its items == reseting item count to zero) */
+
−void EngList_RemoveAll(EngineList *el)
+
−{
+
−	B.Clear();
+
−}
+
−
+
−/** Sort all items using qsort() and given 'CompareItems' function */
+
−void EngList_Sort(EngineList *el, EngList_SortTypeFunction compare)
+
−{
+
−	qsort(B.Data(), B.Size(), sizeof(**el), compare);
+
−}
+
−
+
−/** Sort selected range of items (on indices @ <begin, begin+num_items-1>) */
+
−void EngList_SortPartial(EngineList *el, EngList_SortTypeFunction compare, uint begin, uint num_items)
+
−{
+
−	assert(begin <= (uint)B.Size());
+
−	assert(begin + num_items <= (uint)B.Size());
+
−	qsort(B.Data() + begin, num_items, sizeof(**el), compare);
+
−}
+
−
+
−#undef B
+
−