1 // Created on: 2011-09-20
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2012 OPEN CASCADE SAS
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.
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.
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.
21 #ifndef _OpenGl_Window_Header
22 #define _OpenGl_Window_Header
24 #include <Handle_OpenGl_Window.hxx>
25 #include <MMgt_TShared.hxx>
27 #include <InterfaceGraphic.hxx>
28 #include <InterfaceGraphic_Aspect.hxx>
29 #include <InterfaceGraphic_telem.hxx>
31 #include <Handle_OpenGl_Display.hxx>
32 #include <Handle_OpenGl_Context.hxx>
34 //! This class represents low-level wrapper over window with GL context.
35 //! The window itself should be provided to constructor.
36 class OpenGl_Window : public MMgt_TShared
40 //! Main constructor - prepare GL context for specified window.
41 OpenGl_Window (const Handle(OpenGl_Display)& theDisplay,
42 const CALL_DEF_WINDOW& theCWindow,
43 Aspect_RenderingContext theGContext);
46 virtual ~OpenGl_Window();
48 //! Resizes the window.
49 void Resize (const CALL_DEF_WINDOW& theCWindow);
51 //! Reads depth component for current scene into specified buffer.
52 void ReadDepths (const Standard_Integer theX, const Standard_Integer theY,
53 const Standard_Integer theWidth, const Standard_Integer theHeight,
56 void SetBackgroundColor (const Standard_ShortReal theR,
57 const Standard_ShortReal theG,
58 const Standard_ShortReal theB);
60 void EnablePolygonOffset() const;
61 void DisablePolygonOffset() const;
63 Standard_Integer Width() const { return myWidth; }
64 Standard_Integer Height() const { return myHeight; }
65 const TEL_COLOUR& BackgroundColor() const { return myBgColor; }
66 Standard_Boolean Dither() const { return myDither; }
67 Standard_Boolean BackDither() const { return myBackDither; }
69 const Handle(OpenGl_Display)& GetDisplay() const { return myDisplay; }
71 const Handle(OpenGl_Context)& GetGlContext() const { return myGlContext; }
73 WINDOW GetWindow() const { return myWindow; }
74 GLCONTEXT GetGContext() const { return myGContext; }
78 //! Activates GL context and setup viewport.
81 //! Makes GL context for this window active in current thread
82 virtual Standard_Boolean Activate();
84 void EnableFeatures() const;
85 void DisableFeatures() const;
87 //! Draw directly to the FRONT buffer. Can cause artifacts on the screen.
88 void MakeFrontBufCurrent() const;
90 //! Draw to BACK buffer. Normal and default state.
91 void MakeBackBufCurrent() const;
93 //! Draw simultaneously to BACK and FRONT buffers. Abnormal usage.
94 void MakeFrontAndBackBufCurrent() const;
98 Handle(OpenGl_Display) myDisplay;
99 WINDOW myWindow; //!< native window handle, system-specific
100 Handle(OpenGl_Context) myGlContext;
101 GLCONTEXT myGContext; //!< native GL context bound to this window, system-specific
102 Standard_Boolean myOwnGContext; //!< set to TRUE if GL context was not created by this class
103 #if (defined(_WIN32) || defined(__WIN32__))
108 Standard_Integer myWidth; // WSWidth
109 Standard_Integer myHeight; // WSHeight
110 TEL_COLOUR myBgColor; // WSBackground
111 Standard_Boolean myDither;
112 Standard_Boolean myBackDither;
116 DEFINE_STANDARD_RTTI(OpenGl_Window) // Type definition
117 DEFINE_STANDARD_ALLOC
121 #endif //_OpenGl_Window_Header