projects / occt.git / blame
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|---|---|---|
| 2166f0fa SK |
1 | // File: OpenGl_Window.hxx |
| 2 | // Created: 20 September 2011 | |
| 3 | // Author: Sergey ZERCHANINOV | |
| 4 | // Copyright: OPEN CASCADE 2011 | |
| 5 | ||
| 6 | #ifndef _OpenGl_Window_Header | |
| 7 | #define _OpenGl_Window_Header | |
| 8 | ||
| 9 | #include <Handle_OpenGl_Window.hxx> | |
| 10 | #include <MMgt_TShared.hxx> | |
| 11 | ||
| 12 | #include <InterfaceGraphic.hxx> | |
| 13 | #include <InterfaceGraphic_Aspect.hxx> | |
| 14 | #include <InterfaceGraphic_telem.hxx> | |
| 15 | ||
| 16 | #include <Handle_OpenGl_Display.hxx> | |
| 17 | #include <Handle_OpenGl_Context.hxx> | |
| 18 | ||
| 19 | //! This class represents low-level wrapper over window with GL context. | |
| 20 | //! The window itself should be provided to constructor. | |
| 21 | class OpenGl_Window : public MMgt_TShared | |
| 22 | { | |
| 23 | public: | |
| 24 | ||
| 25 | //! Main constructor - prepare GL context for specified window. | |
| 26 | OpenGl_Window (const Handle(OpenGl_Display)& theDisplay, | |
| 27 | const CALL_DEF_WINDOW& theCWindow, | |
| 28 | Aspect_RenderingContext theGContext); | |
| 29 | ||
| 30 | //! Destructor | |
| 31 | virtual ~OpenGl_Window(); | |
| 32 | ||
| 33 | //! Resizes the window. | |
| 34 | void Resize (const CALL_DEF_WINDOW& theCWindow); | |
| 35 | ||
| 36 | //! Reads depth component for current scene into specified buffer. | |
| 37 | void ReadDepths (const Standard_Integer theX, const Standard_Integer theY, | |
| 38 | const Standard_Integer theWidth, const Standard_Integer theHeight, | |
| 39 | float* theDepths); | |
| 40 | ||
| 41 | void SetBackgroundColor (const Standard_ShortReal theR, | |
| 42 | const Standard_ShortReal theG, | |
| 43 | const Standard_ShortReal theB); | |
| 44 | ||
| 45 | void EnablePolygonOffset() const; | |
| 46 | void DisablePolygonOffset() const; | |
| 47 | ||
| 48 | Standard_Integer Width() const { return myWidth; } | |
| 49 | Standard_Integer Height() const { return myHeight; } | |
| 50 | const TEL_COLOUR& BackgroundColor() const { return myBgColor; } | |
| 51 | Standard_Boolean Dither() const { return myDither; } | |
| 52 | Standard_Boolean BackDither() const { return myBackDither; } | |
| 53 | ||
| 54 | const Handle(OpenGl_Display)& GetDisplay() const { return myDisplay; } | |
| 55 | ||
| 56 | const Handle(OpenGl_Context)& GetGlContext() const { return myGlContext; } | |
| 57 | ||
| 58 | WINDOW GetWindow() const { return myWindow; } | |
| 59 | GLCONTEXT GetGContext() const { return myGContext; } | |
| 60 | ||
| 61 | protected: | |
| 62 | ||
| 63 | //! Activates GL context and setup viewport. | |
| 64 | void Init(); | |
| 65 | ||
| 66 | //! Makes GL context for this window active in current thread | |
| 67 | virtual Standard_Boolean Activate(); | |
| 68 | ||
| 69 | void EnableFeatures() const; | |
| 70 | void DisableFeatures() const; | |
| 71 | ||
| 72 | //! Draw directly to the FRONT buffer. Can cause artifacts on the screen. | |
| 73 | void MakeFrontBufCurrent() const; | |
| 74 | ||
| 75 | //! Draw to BACK buffer. Normal and default state. | |
| 76 | void MakeBackBufCurrent() const; | |
| 77 | ||
| 78 | //! Draw simultaneously to BACK and FRONT buffers. Abnormal usage. | |
| 79 | void MakeFrontAndBackBufCurrent() const; | |
| 80 | ||
| 81 | protected: | |
| 82 | ||
| 83 | Handle(OpenGl_Display) myDisplay; | |
| 84 | WINDOW myWindow; //!< native window handle, system-specific | |
| 85 | Handle(OpenGl_Context) myGlContext; | |
| 86 | GLCONTEXT myGContext; //!< native GL context bound to this window, system-specific | |
| 87 | Standard_Boolean myOwnGContext; //!< set to TRUE if GL context was not created by this class | |
| 88 | #if (defined(_WIN32) || defined(__WIN32__)) | |
| 89 | HDC myWindowDC; | |
| 90 | BOOL mySysPalInUse; | |
| 91 | #endif | |
| 92 | ||
| 93 | Standard_Integer myWidth; // WSWidth | |
| 94 | Standard_Integer myHeight; // WSHeight | |
| 95 | TEL_COLOUR myBgColor; // WSBackground | |
| 96 | Standard_Boolean myDither; | |
| 97 | Standard_Boolean myBackDither; | |
| 98 | ||
| 99 | public: | |
| 100 | ||
| 101 | DEFINE_STANDARD_RTTI(OpenGl_Window) // Type definition | |
| 1c35b92f | 102 | DEFINE_STANDARD_ALLOC |
| 2166f0fa SK |
103 | |
| 104 | }; | |
| 105 | ||
| 106 | #endif //_OpenGl_Window_Header |