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authorMike Buland <eichlan@xagasoft.com>2007-07-03 00:28:59 +0000
committerMike Buland <eichlan@xagasoft.com>2007-07-03 00:28:59 +0000
commitac517a2b7625e0aa0862679e961c6349f859ea3b (patch)
treee3e27a6b9bd5e2be6150088495c91fc91786ad9d /src/old/list.h
parentf8d4301e9fa4f3709258505941e37fab2eadadc6 (diff)
parentbd865cee5f89116c1f054cd0e5c275e97c2d0a9b (diff)
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The reorg is being put in trunk, I think it's ready. Now we just get to find
out how many applications won't work anymore :)
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1#ifndef LIST_H
2#define LIST_H
3
4
5/** The basic List class ADT. This, on it's own, does absolutely nothing, but
6 * does define all standard interface functions to access a list.
7 *@author Mike Buland
8 */
9class List
10{
11public:
12 /**
13 * Construct a list.
14 */
15 List();
16
17 /**
18 * Desconstruct a list.
19 */
20 virtual ~List();
21
22 /** Gets the value at a specified index.
23 *@param nIndex The index of the item to return.
24 *@returns The specified item, or NULL if the index was beyond the range
25 * of the list.
26 *@author Mike Buland
27 */
28 virtual void *getAt( int nIndex ) = 0;
29
30 /** Append the given data to the end of the list. This increases the
31 * size of the list by one.
32 *@param pData The data to append to the list.
33 *@author Mike Buland
34 */
35 virtual void append( void *pData ) = 0;
36
37 /** Inserts an item at the specified position in the list. The
38 * new item takes the index that you specify, and all other items
39 * are moved up one position. The size of the list is increased by
40 * one.
41 *@param pData The value to insert into the list.
42 *@param nPos Where to insert the data into the list.
43 *@author Mike Buland
44 */
45 virtual void insertBefore( void *pData, int nPos = 0 ) = 0;
46
47 /** Determines the size of the list, in elements.
48 *@returns The size of the list.
49 *@author Mike Buland
50 */
51 virtual int getSize( ) = 0;
52
53 /** Determines if the list is empty or not.
54 *@returns True if the list is empty, or false if the list has
55 * data in it (if the size is greater than zero).
56 *@author Mike Buland
57 */
58 virtual bool isEmpty( ) = 0;
59
60 /** Deletes an item at the specified index and moves all other
61 * values down one index. The size of the list is decreased by one.
62 *@param nIndex The index of the item to delete.
63 *@author Mike Buland
64 */
65 virtual void deleteAt( int nIndex ) = 0;
66
67 /** Completely empties the list, and sets the effective size to
68 * zero.
69 *@author Mike Buland
70 */
71 virtual void empty() = 0;
72
73 /** Sets the size of the list. This can be larger or smaller
74 * than what it was previously. If larger, new blank items will
75 * be added to the end of the list. If smaller than the old list
76 * items will be deleted from the end.
77 *@param nNewSize The new size of the list.
78 *@author Mike Buland
79 */
80 virtual void setSize( int nNewSize ) = 0;
81
82 /** Sets a member at a specified location to a new value.
83 * If the member being set is outside of the range of the
84 * current list it should be expanded.
85 *@param nIndex The zero-based index of the item to change.
86 *@param pData The new value for that index.
87 *@author Mike Buland
88 */
89 virtual void setAt( int nIndex, void *pData ) = 0;
90
91 /** Makes the List work like an array. Just say listObj[2] to get
92 * the third element.
93 *@param nIndex The index to access in the list.
94 *@returns A pointer to the data at element index.
95 *@author Mike Buland
96 */
97 void *operator[]( int nIndex ) { return getAt( nIndex ); };
98};
99
100#endif
101