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b311480e | 1 | // Created on: 2011-05-20 |
2 | // Created by: Anton POLETAEV | |
3 | // Copyright (c) 2011-2012 OPEN CASCADE SAS | |
4 | // | |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
7edf74fd A |
20 | |
21 | #include <OpenGl_PrinterContext.hxx> | |
22 | ||
23 | OpenGl_PrinterContext* OpenGl_PrinterContext::g_PrinterContext = NULL; | |
2166f0fa | 24 | GLCONTEXT OpenGl_PrinterContext::g_ContextId = NULL; |
7edf74fd A |
25 | |
26 | //======================================================================= | |
27 | //function : OpenGl_PrinterContext | |
28 | //purpose : Constructor | |
29 | //======================================================================= | |
30 | ||
31 | OpenGl_PrinterContext::OpenGl_PrinterContext (GLCONTEXT theCtx) : | |
32 | myCtx (theCtx), myProjTransform (0, 3, 0, 3), myLayerViewportX (0), | |
33 | myLayerViewportY (0), myScaleX (1.0f), myScaleY (1.0f) | |
34 | { | |
35 | // assign global instance to the current object | |
36 | if (myCtx != NULL) | |
37 | { | |
38 | g_PrinterContext = this; | |
39 | g_ContextId = myCtx; | |
40 | } | |
41 | ||
42 | // init projection matrix | |
43 | Standard_Real anInitValue = 0.0; | |
44 | myProjTransform.Init (anInitValue); | |
45 | myProjTransform (0,0) = 1.0f; | |
46 | myProjTransform (1,1) = 1.0f; | |
47 | myProjTransform (2,2) = 1.0f; | |
48 | myProjTransform (3,3) = 1.0f; | |
49 | } | |
50 | ||
51 | //======================================================================= | |
52 | //function : ~OpenGl_PrinterContext | |
53 | //purpose : Destructor | |
54 | //======================================================================= | |
55 | ||
56 | OpenGl_PrinterContext::~OpenGl_PrinterContext () | |
57 | { | |
58 | // unassign global instance | |
59 | if (g_PrinterContext == this) | |
60 | { | |
61 | g_ContextId = NULL; | |
62 | g_PrinterContext = NULL; | |
63 | } | |
64 | } | |
65 | ||
66 | //======================================================================= | |
67 | //function : GetProjTransformation | |
68 | //purpose : Get view projection transformation matrix. | |
69 | //======================================================================= | |
70 | ||
71 | void OpenGl_PrinterContext::GetProjTransformation (GLfloat theMatrix[16]) | |
72 | { | |
73 | for (int i = 0, k = 0; i < 4; i++) | |
74 | for (int j = 0; j < 4; j++, k++) | |
75 | theMatrix[k] = (GLfloat)myProjTransform (i,j); | |
76 | } | |
77 | ||
78 | //======================================================================= | |
79 | //function : SetProjTransformation | |
80 | //purpose : Set view projection transformation matrix for printing purposes. | |
81 | // theProjTransform parameter should be an 4x4 array. | |
82 | //======================================================================= | |
83 | ||
84 | bool OpenGl_PrinterContext::SetProjTransformation (TColStd_Array2OfReal& thePrj) | |
85 | { | |
86 | if (thePrj.RowLength () != 4 || thePrj.ColLength () != 4) | |
87 | return false; | |
88 | ||
89 | myProjTransform = thePrj; | |
90 | ||
91 | return true; | |
92 | } | |
93 | ||
94 | //======================================================================= | |
95 | //function : Deactivate | |
96 | //purpose : Deactivate PrinterContext object. | |
97 | // Useful when you need to redraw in usual mode the same | |
98 | // OpenGl context that you used for printing right after printing, | |
99 | // before the OpenGl_PrinterContext instance destroyed | |
100 | //======================================================================= | |
101 | ||
102 | void OpenGl_PrinterContext::Deactivate () | |
103 | { | |
104 | // unassign global instance | |
105 | if (g_PrinterContext == this) | |
106 | { | |
107 | g_ContextId = NULL; | |
108 | g_PrinterContext = NULL; | |
109 | } | |
110 | } | |
111 | ||
112 | ||
113 | //======================================================================= | |
114 | //function : GetInstance | |
115 | //purpose : Get the PrinterContext instance assigned for OpenGl context. | |
116 | // Return NULL, if there is no current printing operation and | |
117 | // there is no assigned instance for "theCtx" OpenGl context. | |
118 | //======================================================================= | |
119 | ||
120 | OpenGl_PrinterContext* OpenGl_PrinterContext::GetPrinterContext (GLCONTEXT theCtx) | |
121 | { | |
122 | if (g_ContextId == theCtx) | |
123 | return g_PrinterContext; | |
124 | else | |
125 | return NULL; | |
126 | } |