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1 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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2 | // |
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3 | // This file is part of Open CASCADE Technology software library. |
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4 | // |
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5 | // This library is free software; you can redistribute it and/or modify it under |
6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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7 | // by the Free Software Foundation, with special exception defined in the file |
8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
9 | // distribution for complete text of the license and disclaimer of any warranty. |
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10 | // |
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11 | // Alternatively, this file may be used under the terms of Open CASCADE |
12 | // commercial license or contractual agreement. |
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13 | |
14 | #ifndef _Aspect_DisplayConnection_H__ |
15 | #define _Aspect_DisplayConnection_H__ |
16 | |
17 | #include <Standard_Transient.hxx> |
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18 | #include <Aspect_XAtom.hxx> |
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19 | |
20 | #include <TCollection_AsciiString.hxx> |
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21 | #include <NCollection_DataMap.hxx> |
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22 | |
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23 | #if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) |
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24 | #include <InterfaceGraphic.hxx> |
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25 | #endif |
26 | |
27 | //! This class creates and provides connection with X server. |
28 | //! Raises exception if can not connect to X server. |
29 | //! On Windows and Mac OS X (in case when Cocoa used) platforms this class do nothing. |
30 | //! WARRNING: Do not close display connection manualy! |
31 | |
32 | class Aspect_DisplayConnection : public Standard_Transient |
33 | { |
34 | public: |
35 | |
36 | //! Default constructor. Creates connection with display name taken from "DISPLAY" environment variable |
37 | Standard_EXPORT Aspect_DisplayConnection(); |
38 | |
39 | //! Destructor. Close opened connection. |
40 | Standard_EXPORT ~Aspect_DisplayConnection(); |
41 | |
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42 | #if !defined(_WIN32) && !defined(__WIN32__) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) |
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43 | //! Constructor. Creates connection with display specified in theDisplayName. |
44 | //! Display name should be in format "hostname:number" or "hostname:number.screen_number", where: |
45 | //! hostname - Specifies the name of the host machine on which the display is physically attached. |
46 | //! number - Specifies the number of the display server on that host machine. |
47 | //! screen_number - Specifies the screen to be used on that server. Optional variable. |
48 | Aspect_DisplayConnection (const TCollection_AsciiString& theDisplayName); |
49 | |
50 | //! @return pointer to Display structure that serves as the connection to the X server. |
51 | Display* GetDisplay(); |
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52 | |
53 | //! @return identifier(atom) for custom named property associated with windows that use current connection to X server. |
54 | Atom GetAtom (const Aspect_XAtom theAtom) const; |
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55 | |
56 | //! @return display name for this connection. |
57 | TCollection_AsciiString GetDisplayName(); |
58 | |
59 | private: |
60 | |
61 | //! Open connection with display specified in myDisplayName class field. |
62 | void Init(); |
63 | |
64 | private: |
65 | |
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66 | Display* myDisplay; |
67 | NCollection_DataMap<Aspect_XAtom, Atom> myAtoms; |
68 | TCollection_AsciiString myDisplayName; |
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69 | #endif |
70 | |
71 | private: |
72 | |
73 | //! To protect the connection from closing copying allowed only through the handles. |
74 | Aspect_DisplayConnection (const Aspect_DisplayConnection& ); |
75 | Aspect_DisplayConnection& operator= (const Aspect_DisplayConnection& ); |
76 | |
77 | public: |
78 | |
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79 | DEFINE_STANDARD_RTTI(Aspect_DisplayConnection, Standard_Transient) // Type definition |
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80 | |
81 | }; |
82 | |
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83 | DEFINE_STANDARD_HANDLE (Aspect_DisplayConnection, Standard_Transient) |
84 | |
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85 | #endif // _Aspect_DisplayConnection_H__ |