0025809: Visualization, TKOpenGl - fix texture mapping in capping
[occt.git] / src / OpenGl / OpenGl_Window.hxx
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b311480e 1// Created on: 2011-09-20
2// Created by: Sergey ZERCHANINOV
973c2be1 3// Copyright (c) 2011-2014 OPEN CASCADE SAS
b311480e 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
b311480e 6//
d5f74e42 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
973c2be1 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.
b311480e 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
b311480e 15
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16#ifndef _OpenGl_Window_Header
17#define _OpenGl_Window_Header
18
3695b8c2 19#include <OpenGl_GlCore11.hxx>
2166f0fa 20#include <InterfaceGraphic_Aspect.hxx>
58655684 21#include <OpenGl_Caps.hxx>
2166f0fa 22
2166f0fa 23#include <Handle_OpenGl_Context.hxx>
3695b8c2 24#include <Handle_OpenGl_Window.hxx>
25b97fac 25#include <Handle_OpenGl_GraphicDriver.hxx>
3695b8c2 26
27#include <MMgt_TShared.hxx>
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28
29//! This class represents low-level wrapper over window with GL context.
30//! The window itself should be provided to constructor.
31class OpenGl_Window : public MMgt_TShared
32{
33public:
34
35 //! Main constructor - prepare GL context for specified window.
25b97fac 36 OpenGl_Window (const Handle(OpenGl_GraphicDriver)& theDriver,
2166f0fa 37 const CALL_DEF_WINDOW& theCWindow,
5e27df78 38 Aspect_RenderingContext theGContext,
58655684 39 const Handle(OpenGl_Caps)& theCaps,
5e27df78 40 const Handle(OpenGl_Context)& theShareCtx);
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41
42 //! Destructor
43 virtual ~OpenGl_Window();
44
45 //! Resizes the window.
46 void Resize (const CALL_DEF_WINDOW& theCWindow);
47
48 //! Reads depth component for current scene into specified buffer.
49 void ReadDepths (const Standard_Integer theX, const Standard_Integer theY,
50 const Standard_Integer theWidth, const Standard_Integer theHeight,
51 float* theDepths);
52
53 void SetBackgroundColor (const Standard_ShortReal theR,
54 const Standard_ShortReal theG,
55 const Standard_ShortReal theB);
56
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57 Standard_Integer Width() const { return myWidth; }
58 Standard_Integer Height() const { return myHeight; }
59 const TEL_COLOUR& BackgroundColor() const { return myBgColor; }
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60
61 const Handle(OpenGl_Context)& GetGlContext() const { return myGlContext; }
62
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63protected:
64
65 //! Activates GL context and setup viewport.
66 void Init();
67
68 //! Makes GL context for this window active in current thread
69 virtual Standard_Boolean Activate();
70
71 void EnableFeatures() const;
72 void DisableFeatures() const;
73
74 //! Draw directly to the FRONT buffer. Can cause artifacts on the screen.
75 void MakeFrontBufCurrent() const;
76
77 //! Draw to BACK buffer. Normal and default state.
78 void MakeBackBufCurrent() const;
79
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80protected:
81
2166f0fa 82 Handle(OpenGl_Context) myGlContext;
2166f0fa 83 Standard_Boolean myOwnGContext; //!< set to TRUE if GL context was not created by this class
73192b37 84 Standard_Integer myWidth; //!< window width
85 Standard_Integer myHeight; //!< window height
86 TEL_COLOUR myBgColor; //!< background color
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87
88public:
89
90 DEFINE_STANDARD_RTTI(OpenGl_Window) // Type definition
1c35b92f 91 DEFINE_STANDARD_ALLOC
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92
93};
94
95#endif //_OpenGl_Window_Header