1 // Created on: 2011-09-20
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2013 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.
20 #ifndef _OpenGl_Workspace_Header
21 #define _OpenGl_Workspace_Header
23 #include <Handle_OpenGl_Workspace.hxx>
24 #include <OpenGl_Window.hxx>
26 #include <TColStd_Array2OfReal.hxx>
27 #include <Quantity_Color.hxx>
28 #include <Graphic3d_CView.hxx>
29 #include <Graphic3d_TypeOfComposition.hxx>
30 #include <Graphic3d_TypeOfTexture.hxx>
31 #include <Graphic3d_PtrFrameBuffer.hxx>
32 #include <Graphic3d_BufferType.hxx>
33 #include <Handle_Graphic3d_TextureParams.hxx>
35 #include <Aspect_CLayer2d.hxx>
36 #include <Aspect_Handle.hxx>
37 #include <Aspect_PrintAlgo.hxx>
39 #include <InterfaceGraphic_Graphic3d.hxx>
40 #include <InterfaceGraphic_Visual3d.hxx>
42 #include <NCollection_Sequence.hxx>
44 #include <OpenGl_tsm.hxx>
46 #include <OpenGl_AspectFace.hxx>
47 #include <OpenGl_Display.hxx>
48 #include <OpenGl_Matrix.hxx>
49 #include <OpenGl_NamedStatus.hxx>
50 #include <OpenGl_PrinterContext.hxx>
51 #include <OpenGl_TextParam.hxx>
52 #include <OpenGl_RenderFilter.hxx>
54 #include <Handle_OpenGl_View.hxx>
55 #include <Handle_OpenGl_Texture.hxx>
57 class OpenGl_AspectLine;
58 class OpenGl_AspectMarker;
59 class OpenGl_AspectText;
60 class OpenGl_FrameBuffer;
61 class OpenGl_Structure;
65 //! Reprepsents window with GL context.
66 //! Provides methods to render primitives and maintan GL state.
67 class OpenGl_Workspace : public OpenGl_Window
71 //! Main constructor - prepare GL context for specified window.
72 OpenGl_Workspace (const Handle(OpenGl_Display)& theDisplay,
73 const CALL_DEF_WINDOW& theCWindow,
74 Aspect_RenderingContext theGContext,
75 const Handle(OpenGl_Caps)& theCaps,
76 const Handle(OpenGl_Context)& theShareCtx);
79 virtual ~OpenGl_Workspace();
81 void SetActiveView (const Handle(OpenGl_View)& theView) { myView = theView; }
82 const Handle(OpenGl_View)& ActiveView () const { return myView; }
84 //! Redraw the window.
85 void Redraw (const Graphic3d_CView& theCView,
86 const Aspect_CLayer2d& theCUnderLayer,
87 const Aspect_CLayer2d& theCOverLayer);
89 //! Deprecated. Simply calls Redraw().
90 void Update (const Graphic3d_CView& theCView,
91 const Aspect_CLayer2d& theCUnderLayer,
92 const Aspect_CLayer2d& theCOverLayer)
94 Redraw (theCView, theCUnderLayer, theCOverLayer);
97 //! Special method to perform printing.
98 //! System-specific and currently only Win platform implemented.
99 Standard_Boolean Print (const Handle(OpenGl_PrinterContext)& thePrintContext,
100 const Graphic3d_CView& theCView,
101 const Aspect_CLayer2d& theCUnderLayer,
102 const Aspect_CLayer2d& theCOverLayer,
103 const Aspect_Handle theHPrintDC,
104 const Standard_Boolean theToShowBackground,
105 const Standard_CString theFileName,
106 const Aspect_PrintAlgo thePrintAlgorithm,
107 const Standard_Real theScaleFactor);
109 const Handle(OpenGl_PrinterContext)& PrinterContext() const
111 return myPrintContext;
114 void DisplayCallback (const Graphic3d_CView& theCView, int theReason);
116 Standard_Boolean SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer);
117 Standard_Boolean BeginAddMode();
119 void ClearImmediatMode (const Graphic3d_CView& theCView,
120 const Standard_Boolean theToFlush);
121 void RedrawImmediatMode();
122 Standard_Boolean BeginImmediatMode (const Graphic3d_CView& theCView,
123 const Standard_Boolean theUseDepthTest,
124 const Standard_Boolean theRetainMode);
125 void EndImmediatMode();
126 void DrawStructure (const OpenGl_Structure* theStructure);
128 Graphic3d_PtrFrameBuffer FBOCreate (const Standard_Integer theWidth, const Standard_Integer theHeight);
129 void FBORelease (Graphic3d_PtrFrameBuffer theFBOPtr);
130 Standard_Boolean BufferDump (OpenGl_FrameBuffer* theFBOPtr,
131 Image_PixMap& theImage,
132 const Graphic3d_BufferType& theBufferType);
134 void UseTransparency (const Standard_Boolean theFlag);
135 Standard_Boolean& UseZBuffer() { return myUseZBuffer; }
136 Standard_Boolean& UseDepthTest() { return myUseDepthTest; }
137 Standard_Boolean& UseGLLight() { return myUseGLLight; }
139 //// RELATED TO STATUS ////
141 Standard_Integer NamedStatus;
143 const TEL_COLOUR* HighlightColor;
145 const OpenGl_Matrix* SetViewMatrix (const OpenGl_Matrix* );
146 const OpenGl_Matrix* SetStructureMatrix (const OpenGl_Matrix* );
148 const OpenGl_AspectLine* SetAspectLine (const OpenGl_AspectLine* theAspect);
149 const OpenGl_AspectFace* SetAspectFace (const OpenGl_AspectFace* theAspect);
150 const OpenGl_AspectMarker* SetAspectMarker (const OpenGl_AspectMarker* theAspect);
151 const OpenGl_AspectText* SetAspectText (const OpenGl_AspectText* theAspect);
153 void SetTextParam (const OpenGl_TextParam* theParam) { TextParam_set = theParam; }
155 //// THESE METHODS ARE EXPORTED AS THEY PROVIDE STATE INFO TO USERDRAW
156 Standard_EXPORT const OpenGl_AspectLine* AspectLine (const Standard_Boolean theWithApply);
157 Standard_EXPORT const OpenGl_AspectFace* AspectFace (const Standard_Boolean theWithApply);
158 Standard_EXPORT const OpenGl_AspectMarker* AspectMarker (const Standard_Boolean theWithApply);
159 Standard_EXPORT const OpenGl_AspectText* AspectText (const Standard_Boolean theWithApply);
160 inline const OpenGl_TextParam* AspectTextParams() const
162 return TextParam_applied;
165 //! Clear the applied aspect state.
166 void ResetAppliedAspect();
168 Standard_EXPORT Handle(OpenGl_Texture) DisableTexture();
169 Standard_EXPORT Handle(OpenGl_Texture) EnableTexture (const Handle(OpenGl_Texture)& theTexture,
170 const Handle(Graphic3d_TextureParams)& theParams = NULL);
172 //! Set filter for restricting rendering of particular elements.
173 //! Filter can be applied for rendering passes used by recursive
174 //! rendering algorithms for rendering elements of groups.
175 //! @param theFilter [in] the filter instance.
176 inline void SetRenderFilter (const Handle(OpenGl_RenderFilter)& theFilter)
178 myRenderFilter = theFilter;
181 //! Get rendering filter.
182 //! @return filter instance.
183 inline const Handle(OpenGl_RenderFilter)& GetRenderFilter() const
185 return myRenderFilter;
188 //! @return applied view matrix.
189 inline const OpenGl_Matrix* ViewMatrix() const { return ViewMatrix_applied; }
191 //! @return applied model structure matrix.
192 inline const OpenGl_Matrix* ModelMatrix() const { return StructureMatrix_applied; }
196 void CopyBuffers (const Standard_Boolean theFrontToBack);
198 virtual Standard_Boolean Activate();
201 void Redraw1 (const Graphic3d_CView& theCView,
202 const Aspect_CLayer2d& theCUnderLayer,
203 const Aspect_CLayer2d& theCOverLayer,
204 const int theToSwap);
206 void UpdateMaterial (const int flag);
208 void setTextureParams (Handle(OpenGl_Texture)& theTexture,
209 const Handle(Graphic3d_TextureParams)& theParams);
211 protected: //! @name protected fields
213 Handle(OpenGl_PrinterContext) myPrintContext;
214 Handle(OpenGl_View) myView; // WSViews - now just one view is supported
215 Standard_Boolean myIsTransientOpen; // transientOpen
216 Standard_Boolean myRetainMode;
217 Standard_Boolean myTransientDrawToFront; //!< optimization flag for immediate mode (to render directly to the front buffer)
219 NCollection_Sequence<const OpenGl_Structure*> myTransientList;
221 Standard_Boolean myUseTransparency;
222 Standard_Boolean myUseZBuffer;
223 Standard_Boolean myUseDepthTest;
224 Standard_Boolean myUseGLLight;
225 Standard_Boolean myBackBufferRestored;
227 protected: //! @name fields related to status
229 Handle(OpenGl_RenderFilter) myRenderFilter;
230 Handle(OpenGl_Texture) myTextureBound; //!< currently bound texture (managed by OpenGl_AspectFace and OpenGl_View environment texture)
231 const OpenGl_AspectLine *AspectLine_set, *AspectLine_applied;
232 const OpenGl_AspectFace *AspectFace_set, *AspectFace_applied;
233 const OpenGl_AspectMarker *AspectMarker_set, *AspectMarker_applied;
234 const OpenGl_AspectText *AspectText_set, *AspectText_applied;
236 const OpenGl_TextParam *TextParam_set, *TextParam_applied;
238 const OpenGl_Matrix* ViewMatrix_applied;
239 const OpenGl_Matrix* StructureMatrix_applied;
241 const TEL_POFFSET_PARAM* PolygonOffset_applied;
243 OpenGl_AspectFace myAspectFaceHl; // Hiddenline aspect
245 public: //! @name type definition
247 DEFINE_STANDARD_RTTI(OpenGl_Workspace)
248 DEFINE_STANDARD_ALLOC
252 #endif // _OpenGl_Workspace_Header