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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: busyinfo.h | |
e54c96f1 | 3 | // Purpose: interface of wxBusyInfo |
23324ae1 | 4 | // Author: wxWidgets team |
526954c5 | 5 | // Licence: wxWindows licence |
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6 | ///////////////////////////////////////////////////////////////////////////// |
7 | ||
8 | /** | |
9 | @class wxBusyInfo | |
7c913512 | 10 | |
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11 | This class makes it easy to tell your user that the program is temporarily busy. |
12 | Just create a wxBusyInfo object on the stack, and within the current scope, | |
13 | a message window will be shown. | |
7c913512 | 14 | |
23324ae1 | 15 | For example: |
7c913512 | 16 | |
23324ae1 | 17 | @code |
8024723d | 18 | wxBusyInfo wait("Please wait, working..."); |
7c913512 | 19 | |
8024723d | 20 | for (int i = 0; i < 100000; i++) |
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21 | { |
22 | DoACalculation(); | |
23 | } | |
24 | @endcode | |
7c913512 | 25 | |
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26 | It works by creating a window in the constructor, and deleting it |
27 | in the destructor. | |
7c913512 | 28 | |
de1ac181 | 29 | You may also want to call wxTheApp->Yield() to refresh the window |
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30 | periodically (in case it had been obscured by other windows, for |
31 | example) like this: | |
7c913512 | 32 | |
23324ae1 | 33 | @code |
8024723d | 34 | wxWindowDisabler disableAll; |
23324ae1 | 35 | wxBusyInfo wait("Please wait, working..."); |
7c913512 | 36 | |
8024723d | 37 | for (int i = 0; i < 100000; i++) |
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38 | { |
39 | DoACalculation(); | |
7c913512 | 40 | |
23324ae1 | 41 | if ( !(i % 1000) ) |
ea53cb4a | 42 | wxTheApp->Yield(); |
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43 | } |
44 | @endcode | |
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45 | |
46 | but take care to not cause undesirable reentrancies when doing it (see | |
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47 | wxApp::Yield for more details). The simplest way to do it is to use |
48 | wxWindowDisabler class as illustrated in the above example. | |
7c913512 | 49 | |
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50 | Note that a wxBusyInfo is always built with the @c wxSTAY_ON_TOP window style |
51 | (see wxFrame window styles for more info). | |
52 | ||
23324ae1 | 53 | @library{wxcore} |
8024723d | 54 | @category{cmndlg} |
23324ae1 | 55 | */ |
7c913512 | 56 | class wxBusyInfo |
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57 | { |
58 | public: | |
59 | /** | |
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60 | Constructs a busy info window as child of @a parent and displays @e msg in it. |
61 | ||
62 | @note If @a parent is not @NULL you must ensure that it is not | |
63 | closed while the busy info is shown. | |
23324ae1 | 64 | */ |
4cc4bfaf | 65 | wxBusyInfo(const wxString& msg, wxWindow* parent = NULL); |
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66 | |
67 | /** | |
68 | Hides and closes the window containing the information text. | |
69 | */ | |
d2aa927a | 70 | virtual ~wxBusyInfo(); |
23324ae1 | 71 | }; |
e54c96f1 | 72 |