1 // Created on: 2011-09-20
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2014 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 _OpenGl_Window_Header
17 #define _OpenGl_Window_Header
19 #include <OpenGl_GlCore11.hxx>
20 #include <InterfaceGraphic_Aspect.hxx>
21 #include <OpenGl_Caps.hxx>
23 #include <Handle_OpenGl_Context.hxx>
24 #include <Handle_OpenGl_Window.hxx>
25 #include <Handle_OpenGl_GraphicDriver.hxx>
27 #include <MMgt_TShared.hxx>
29 //! This class represents low-level wrapper over window with GL context.
30 //! The window itself should be provided to constructor.
31 class OpenGl_Window : public MMgt_TShared
35 //! Main constructor - prepare GL context for specified window.
36 OpenGl_Window (const Handle(OpenGl_GraphicDriver)& theDriver,
37 const CALL_DEF_WINDOW& theCWindow,
38 Aspect_RenderingContext theGContext,
39 const Handle(OpenGl_Caps)& theCaps,
40 const Handle(OpenGl_Context)& theShareCtx);
43 virtual ~OpenGl_Window();
45 //! Resizes the window.
46 void Resize (const CALL_DEF_WINDOW& theCWindow);
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,
53 void SetBackgroundColor (const Standard_ShortReal theR,
54 const Standard_ShortReal theG,
55 const Standard_ShortReal theB);
57 Standard_Integer Width() const { return myWidth; }
58 Standard_Integer Height() const { return myHeight; }
59 const TEL_COLOUR& BackgroundColor() const { return myBgColor; }
61 const Handle(OpenGl_Context)& GetGlContext() const { return myGlContext; }
65 //! Activates GL context and setup viewport.
68 //! Makes GL context for this window active in current thread
69 virtual Standard_Boolean Activate();
71 void EnableFeatures() const;
72 void DisableFeatures() const;
74 //! Draw directly to the FRONT buffer. Can cause artifacts on the screen.
75 void MakeFrontBufCurrent() const;
77 //! Draw to BACK buffer. Normal and default state.
78 void MakeBackBufCurrent() const;
82 Handle(OpenGl_Context) myGlContext;
83 Standard_Boolean myOwnGContext; //!< set to TRUE if GL context was not created by this class
84 Standard_Integer myWidth; //!< window width
85 Standard_Integer myHeight; //!< window height
86 TEL_COLOUR myBgColor; //!< background color
90 DEFINE_STANDARD_RTTI(OpenGl_Window) // Type definition
95 #endif //_OpenGl_Window_Header