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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 | #include <Aspect_DisplayConnection.hxx> |
15 | |
16 | #include <Aspect_DisplayConnectionDefinitionError.hxx> |
17 | #include <OSD_Environment.hxx> |
18 | |
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19 | |
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20 | IMPLEMENT_STANDARD_RTTIEXT(Aspect_DisplayConnection,Standard_Transient) |
21 | |
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22 | // ======================================================================= |
23 | // function : Aspect_DisplayConnection |
24 | // purpose : |
25 | // ======================================================================= |
26 | Aspect_DisplayConnection::Aspect_DisplayConnection() |
27 | { |
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28 | #if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) && !defined(__QNX__) |
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29 | myDisplay = NULL; |
30 | myIsOwnDisplay = false; |
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31 | OSD_Environment anEnv ("DISPLAY"); |
32 | myDisplayName = anEnv.Value(); |
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33 | Init (NULL); |
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34 | #endif |
35 | } |
36 | |
37 | // ======================================================================= |
38 | // function : ~Aspect_DisplayConnection |
39 | // purpose : |
40 | // ======================================================================= |
41 | Aspect_DisplayConnection::~Aspect_DisplayConnection() |
42 | { |
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43 | #if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) && !defined(__QNX__) |
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44 | if (myDisplay != NULL |
45 | && myIsOwnDisplay) |
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46 | { |
47 | XCloseDisplay (myDisplay); |
48 | } |
49 | #endif |
50 | } |
51 | |
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52 | #if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) && !defined(__QNX__) |
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53 | // ======================================================================= |
54 | // function : Aspect_DisplayConnection |
55 | // purpose : |
56 | // ======================================================================= |
57 | Aspect_DisplayConnection::Aspect_DisplayConnection (const TCollection_AsciiString& theDisplayName) |
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58 | : myDisplay (NULL), |
59 | myIsOwnDisplay (false) |
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60 | { |
61 | myDisplayName = theDisplayName; |
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62 | Init (NULL); |
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63 | } |
64 | |
65 | // ======================================================================= |
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66 | // function : Aspect_DisplayConnection |
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67 | // purpose : |
68 | // ======================================================================= |
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69 | Aspect_DisplayConnection::Aspect_DisplayConnection (Display* theDisplay) |
70 | : myDisplay (NULL), |
71 | myIsOwnDisplay (false) |
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72 | { |
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73 | Init (theDisplay); |
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74 | } |
75 | |
76 | // ======================================================================= |
77 | // function : Init |
78 | // purpose : |
79 | // ======================================================================= |
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80 | void Aspect_DisplayConnection::Init (Display* theDisplay) |
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81 | { |
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82 | if (myDisplay != NULL |
83 | && myIsOwnDisplay) |
84 | { |
85 | XCloseDisplay (myDisplay); |
86 | } |
87 | myIsOwnDisplay = false; |
88 | myAtoms.Clear(); |
89 | |
90 | myDisplay = theDisplay != NULL ? theDisplay : XOpenDisplay (myDisplayName.ToCString()); |
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91 | if (myDisplay == NULL) |
92 | { |
93 | TCollection_AsciiString aMessage; |
94 | aMessage += "Can not connect to the server \""; |
95 | aMessage += myDisplayName + "\""; |
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96 | throw Aspect_DisplayConnectionDefinitionError(aMessage.ToCString()); |
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97 | } |
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98 | else |
99 | { |
100 | myIsOwnDisplay = theDisplay == NULL; |
101 | myAtoms.Bind (Aspect_XA_DELETE_WINDOW, XInternAtom(myDisplay, "WM_DELETE_WINDOW", False)); |
102 | } |
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103 | } |
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104 | |
105 | // ======================================================================= |
106 | // function : GetAtom |
107 | // purpose : |
108 | // ======================================================================= |
109 | Atom Aspect_DisplayConnection::GetAtom (const Aspect_XAtom theAtom) const |
110 | { |
111 | Atom anAtom = myAtoms.Find(theAtom); |
112 | return anAtom; |
113 | } |
114 | |
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115 | #endif |