1 // Created on: 2017-06-26
2 // Created by: Andrey Betenev
3 // Copyright (c) 2017 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License version 2.1 as published
9 // by the Free Software Foundation, with special exception defined in the file
10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11 // distribution for complete text of the license and disclaimer of any warranty.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
16 #ifndef _Message_Alert_HeaderFile
17 #define _Message_Alert_HeaderFile
19 #include <Standard_Type.hxx>
22 DEFINE_STANDARD_HANDLE(Message_Alert, MMgt_TShared)
24 //! Base class of the hierarchy of classes describing various situations
25 //! occurring during execution of some algorithm or procedure.
27 //! Alert should provide unique text identifier that can be used to distinguish
28 //! particular type of alerts, e.g. to get text message string describing it.
29 //! See method GetMessageKey(); by default, dynamic type name is used.
31 //! Alert can contain some data. To avoid duplication of data, new alert
32 //! can be merged with another one of the same type. Method SupportsMerge()
33 //! should return true if merge is supported; method Merge() should do the
34 //! merge if possible and return true in that case and false otherwise.
36 class Message_Alert : public Standard_Transient
40 //! Return a C string to be used as a key for generating text user
41 //! messages describing this alert.
42 //! The messages are generated with help of Message_Msg class, in
43 //! Message_Report::Dump().
44 //! Base implementation returns dynamic type name of the instance.
45 virtual Standard_EXPORT Standard_CString GetMessageKey () const;
47 //! Return true if this type of alert can be merged with other
48 //! of the same type to avoid duplication.
49 //! Basis implementation returns true.
50 virtual Standard_EXPORT Standard_Boolean SupportsMerge () const;
52 //! If possible, merge data contained in this alert to theTarget.
53 //! @return True if merged.
54 //! Base implementation always returns true.
55 virtual Standard_EXPORT Standard_Boolean Merge (const Handle(Message_Alert)& theTarget);
58 DEFINE_STANDARD_RTTIEXT(Message_Alert,Standard_Transient)
61 //! Macro allowing to define simple alert (without data) in single line of code
62 #define DEFINE_SIMPLE_ALERT(Alert) class Alert : public Message_Alert { DEFINE_STANDARD_RTTI_INLINE(Alert,Message_Alert) };
64 #endif // _Message_Alert_HeaderFile