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286 lines
10 KiB
C++
286 lines
10 KiB
C++
// Created on: 2011-09-20
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _OpenGl_View_Header
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#define _OpenGl_View_Header
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#include <MMgt_TShared.hxx>
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#include <Standard_DefineHandle.hxx>
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#include <TColStd_Array2OfReal.hxx>
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#include <NCollection_List.hxx>
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#include <Quantity_NameOfColor.hxx>
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#include <Aspect_FillMethod.hxx>
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#include <Aspect_GradientFillMethod.hxx>
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#include <Aspect_TypeOfTriedronPosition.hxx>
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#include <Aspect_CLayer2d.hxx>
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#include <InterfaceGraphic_Graphic3d.hxx>
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#include <InterfaceGraphic_Visual3d.hxx>
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#include <Graphic3d_CView.hxx>
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#include <Graphic3d_CGraduatedTrihedron.hxx>
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#include <Graphic3d_SequenceOfHClipPlane.hxx>
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#include <Graphic3d_ZLayerSettings.hxx>
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#include <Visual3d_TypeOfSurfaceDetail.hxx>
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#include <OpenGl_LayerList.hxx>
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#include <OpenGl_Light.hxx>
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#include <OpenGl_LineAttributes.hxx>
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#include <Handle_OpenGl_Context.hxx>
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#include <Handle_OpenGl_GraphicDriver.hxx>
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#include <Handle_OpenGl_Workspace.hxx>
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#include <Handle_OpenGl_View.hxx>
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#include <Handle_OpenGl_Texture.hxx>
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struct OPENGL_BG_TEXTURE
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{
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Tuint TexId;
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Tint Width;
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Tint Height;
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Aspect_FillMethod Style;
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};
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struct OPENGL_BG_GRADIENT
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{
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TEL_COLOUR color1;
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TEL_COLOUR color2;
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Aspect_GradientFillMethod type;
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};
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struct OPENGL_ZCLIP
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{
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struct {
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Standard_Boolean IsOn;
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Standard_ShortReal Limit; /* in the range [0., 1.] */
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} Back;
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struct {
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Standard_Boolean IsOn;
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Standard_ShortReal Limit; /* in the range [0., 1.] */
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} Front;
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};
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struct OPENGL_FOG
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{
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Standard_Boolean IsOn;
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Standard_ShortReal Front; /* in the range [0., 1.] */
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Standard_ShortReal Back; /* in the range [0., 1.] */
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TEL_COLOUR Color;
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};
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struct OpenGl_Matrix;
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class OpenGl_GraduatedTrihedron;
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class OpenGl_Structure;
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class OpenGl_Trihedron;
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class Handle(OpenGl_PrinterContext);
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class OpenGl_StateCounter;
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class OpenGl_View : public MMgt_TShared
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{
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public:
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OpenGl_View (const CALL_DEF_VIEWCONTEXT &AContext, OpenGl_StateCounter* theCounter);
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virtual ~OpenGl_View ();
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void ReleaseGlResources (const Handle(OpenGl_Context)& theCtx);
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void SetTextureEnv (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_TextureEnv)& theTexture);
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void SetSurfaceDetail (const Visual3d_TypeOfSurfaceDetail AMode);
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void SetBackfacing (const Standard_Integer AMode);
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void SetLights (const CALL_DEF_VIEWCONTEXT &AContext);
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void SetAntiAliasing (const Standard_Boolean AMode) { myAntiAliasing = AMode; }
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void SetClipPlanes (const Graphic3d_SequenceOfHClipPlane &thePlanes) { myClipPlanes = thePlanes; }
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void SetVisualisation (const CALL_DEF_VIEWCONTEXT &AContext);
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void SetCamera (const Handle(Graphic3d_Camera)& theCamera) { myCamera = theCamera; }
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void SetClipLimit (const Graphic3d_CView& theCView);
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void SetFog (const Graphic3d_CView& theCView, const Standard_Boolean theFlag);
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void TriedronDisplay (const Handle(OpenGl_Context)& theCtx,
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const Aspect_TypeOfTriedronPosition thePosition,
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const Quantity_NameOfColor theColor,
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const Standard_Real theScale,
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const Standard_Boolean theAsWireframe);
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void TriedronErase (const Handle(OpenGl_Context)& theCtx);
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void GraduatedTrihedronDisplay (const Handle(OpenGl_Context)& theCtx,
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const Graphic3d_CGraduatedTrihedron& theCubic);
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void GraduatedTrihedronErase (const Handle(OpenGl_Context)& theCtx);
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Standard_Real Height () const { return myCamera->ViewDimensions().X(); }
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Standard_Real Width () const { return myCamera->ViewDimensions().Y(); }
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Standard_Integer Backfacing () const { return myBackfacing; }
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const TEL_TRANSFORM_PERSISTENCE * BeginTransformPersistence (const Handle(OpenGl_Context)& theCtx,
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const TEL_TRANSFORM_PERSISTENCE *theTransPers);
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void EndTransformPersistence (const Handle(OpenGl_Context)& theCtx);
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//! Add structure to display list with specified priority.
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//! The structure will be added to associated with it z layer.
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//! If the z layer is not presented in the view, the structure will
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//! be displayed in default bottom-level z layer.
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void DisplayStructure (const OpenGl_Structure* theStructure,
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const Standard_Integer thePriority);
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//! Erase structure from display list.
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void EraseStructure (const OpenGl_Structure* theStructure);
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//! Add structure to the list of immediate structures.
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void DisplayImmediateStructure (const OpenGl_Structure* theStructure);
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//! Erase structure from display list.
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void EraseImmediateStructure (const OpenGl_Structure* theStructure);
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//! Insert a new top-level z layer with ID <theLayerId>
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void AddZLayer (const Standard_Integer theLayerId);
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//! Remove a z layer with ID <theLayerId>
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void RemoveZLayer (const Standard_Integer theLayerId);
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//! Display structure in z layer with ID <theNewLayerId>
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//! If the layer with ID <theNewLayerId> is not presented in the view,
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//! the structure will be displayed in default bottom-level layer.
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void ChangeZLayer (const OpenGl_Structure *theStructure,
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const Standard_Integer theNewLayerId);
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//! Sets the settings for a single Z layer of specified view.
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void SetZLayerSettings (const Standard_Integer theLayerId,
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const Graphic3d_ZLayerSettings theSettings);
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void CreateBackgroundTexture (const Standard_CString AFileName, const Aspect_FillMethod AFillStyle);
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void SetBackgroundTextureStyle (const Aspect_FillMethod FillStyle);
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void SetBackgroundGradient (const Quantity_Color& AColor1, const Quantity_Color& AColor2, const Aspect_GradientFillMethod AType);
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void SetBackgroundGradientType (const Aspect_GradientFillMethod AType);
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void Render (const Handle(OpenGl_PrinterContext)& thePrintContext,
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const Handle(OpenGl_Workspace)& theWorkspace,
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const Graphic3d_CView& theCView,
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const Aspect_CLayer2d& theCUnderLayer,
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const Aspect_CLayer2d& theCOverLayer);
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void DrawBackground (OpenGl_Workspace& theWorkspace);
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//! Returns list of OpenGL Z-layers.
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const OpenGl_LayerList& LayerList() const { return myZLayers; }
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//! Returns list of openGL light sources.
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const OpenGl_ListOfLight& LightList() const { return myLights; }
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//! Returns OpenGL environment map.
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const Handle(OpenGl_Texture)& TextureEnv() const { return myTextureEnv; }
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//! Returns visualization mode for objects in the view.
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Visual3d_TypeOfSurfaceDetail SurfaceDetail() const { return mySurfaceDetail; }
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void GetMatrices (TColStd_Array2OfReal& theMatOrient,
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TColStd_Array2OfReal& theMatMapping) const;
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//! Returns list of immediate structures rendered on top of main presentation
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const OpenGl_SequenceOfStructure& ImmediateStructures() const
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{
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return myImmediateList;
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}
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//! Returns modification state for ray-tracing.
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Standard_Size ModificationState() const { return myModificationState; }
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protected:
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void RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace);
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void RedrawLayer2d (const Handle(OpenGl_PrinterContext)& thePrintContext,
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const Graphic3d_CView& theCView,
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const Aspect_CLayer2d& theCLayer);
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//! Redraw contents of model scene: clipping planes,
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//! lights, structures. The peculiar properties of "scene" is that
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//! it requires empty Z-Buffer and uses projection and orientation
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//! matrices supplied by 3d view.
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//! @param thePrintCtx [in] printer context which facilitates tiled printing.
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//! @param theWorkspace [in] rendering workspace.
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//! @param theCView [in] view data.
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//! @param theProjection [in] view projection matrix.
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//! @param theOrientation [in] view orientation matrix.
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void RedrawScene (const Handle(OpenGl_PrinterContext)& thePrintContext,
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const Handle(OpenGl_Workspace)& theWorkspace,
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const OpenGl_Matrix* theProjection,
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const OpenGl_Matrix* theOrientation);
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Handle(OpenGl_LineAttributes) myLineAttribs;
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Handle(OpenGl_Texture) myTextureEnv;
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Visual3d_TypeOfSurfaceDetail mySurfaceDetail;
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Standard_Integer myBackfacing;
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OPENGL_BG_TEXTURE myBgTexture;
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OPENGL_BG_GRADIENT myBgGradient;
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OPENGL_ZCLIP myZClip;
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Graphic3d_SequenceOfHClipPlane myClipPlanes;
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Handle(Graphic3d_Camera) myCamera;
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OPENGL_FOG myFog;
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OpenGl_Trihedron* myTrihedron;
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OpenGl_GraduatedTrihedron* myGraduatedTrihedron;
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//View_LABViewContext
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int myVisualization;
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int myIntShadingMethod;
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//View_LABLight
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OpenGl_ListOfLight myLights;
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//View_LABPlane
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//View_LABAliasing
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Standard_Boolean myAntiAliasing;
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//View_LABDepthCueing - fixed index used
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OpenGl_LayerList myZLayers; //!< main list of displayed structure, sorted by layers
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OpenGl_SequenceOfStructure myImmediateList; //!< list of immediate structures rendered on top of main presentation
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const TEL_TRANSFORM_PERSISTENCE *myTransPers;
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Standard_Boolean myIsTransPers;
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//! Modification state
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Standard_Size myProjectionState;
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Standard_Size myModelViewState;
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OpenGl_StateCounter* myStateCounter;
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Standard_Size myCurrLightSourceState;
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typedef std::pair<Standard_Size, Standard_Size> StateInfo;
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StateInfo myLastOrientationState;
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StateInfo myLastViewMappingState;
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StateInfo myLastLightSourceState;
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Standard_Size myModificationState;
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public:
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DEFINE_STANDARD_ALLOC
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DEFINE_STANDARD_RTTI(OpenGl_View) // Type definition
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};
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#endif // _OpenGl_View_Header
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