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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: windowid.h | |
3 | // Purpose: interface of wxIdManager | |
4 | // Author: wxWidgets team | |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows license | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | /** | |
10 | The type of unique identifiers (ID) used for wxWindow-derived classes. | |
11 | */ | |
12 | typedef int wxWindowID; | |
13 | ||
14 | /** | |
15 | @class wxIdManager | |
16 | ||
17 | wxIdManager is responsible for allocating and releasing window IDs. | |
18 | It is used by wxWindow::NewControlId() and wxWindow::UnreserveControlId(), | |
19 | and can also be used be used directly. | |
20 | ||
21 | @library{wxcore} | |
22 | @category{cfg} | |
23 | ||
24 | @see wxWindow::NewControlId(), wxWindow::UnreserveControlId(), | |
25 | @ref overview_windowids | |
26 | */ | |
27 | class wxIdManager | |
28 | { | |
29 | public: | |
30 | /** | |
31 | Called directly by wxWindow::NewControlId(), this function will create | |
32 | a new ID or range of IDs. | |
33 | The IDs will be reserved until assigned to a wxWindowIDRef() or unreserved | |
34 | with UnreserveControlId(). | |
35 | Only ID values that are not assigned to a wxWindowIDRef() need to be unreserved. | |
36 | ||
37 | @param count | |
38 | The number of sequential IDs to reserve. | |
39 | ||
40 | @return The value of the first ID in the sequence, or wxID_NONE. | |
41 | */ | |
42 | static wxWindowID ReserveControlId(int count = 1); | |
43 | ||
44 | /** | |
45 | Called directly by wxWindow::UnreserveControlId(), this function will | |
46 | unreserve an ID or range of IDs that is currently reserved. | |
47 | This should only be called for IDs returned by ReserveControlId() that | |
48 | have NOT been assigned to a wxWindowIDRef (see @ref overview_windowids). | |
49 | ||
50 | @param id | |
51 | The first of the range of IDs to unreserve. | |
52 | @param count | |
53 | The number of sequential IDs to unreserve. | |
54 | ||
55 | @return The value of the first ID in the sequence, or wxID_NONE. | |
56 | */ | |
57 | static wxWindowID UnreserveControlId(wxWindowID id, int count = 1); | |
58 | }; | |
59 |