// Created on: 2011-08-01
// Created by: Sergey ZERCHANINOV
-// Copyright (c) 2011-2012 OPEN CASCADE SAS
+// Copyright (c) 2011-2014 OPEN CASCADE SAS
//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
+// This file is part of Open CASCADE Technology software library.
//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
-
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
#ifndef OpenGl_Structure_Header
#define OpenGl_Structure_Header
-#include <NCollection_List.hxx>
-#include <InterfaceGraphic_Graphic3d.hxx>
+#include <Graphic3d_CStructure.hxx>
+#include <Graphic3d_SequenceOfHClipPlane.hxx>
#include <OpenGl_AspectLine.hxx>
#include <OpenGl_AspectFace.hxx>
#include <OpenGl_AspectMarker.hxx>
#include <OpenGl_AspectText.hxx>
+#include <OpenGl_GraphicDriver.hxx>
#include <OpenGl_Group.hxx>
#include <OpenGl_Matrix.hxx>
+#include <OpenGl_Vec.hxx>
+#include <OpenGl_Workspace.hxx>
+
+#include <NCollection_List.hxx>
+#include <InterfaceGraphic_Graphic3d.hxx>
-typedef NCollection_List<const OpenGl_Structure *> OpenGl_ListOfStructure;
-typedef NCollection_List<const OpenGl_Group *> OpenGl_ListOfGroup;
+class OpenGl_Structure;
+class OpenGl_GraphicDriver;
-class OpenGl_Structure : public OpenGl_Element
+typedef NCollection_List<const OpenGl_Structure* > OpenGl_ListOfStructure;
+
+//! Implementation of low-level graphic structure.
+class OpenGl_Structure : public Graphic3d_CStructure
{
+ friend class OpenGl_Group;
public:
- OpenGl_Structure();
+ //! Auxiliary wrapper to iterate OpenGl_Group sequence.
+ class GroupIterator
+ {
- void SetTransformation (const float *AMatrix);
+ public:
+ GroupIterator (const Graphic3d_SequenceOfGroup& theGroups) : myIter (theGroups) {}
+ Standard_Boolean More() const { return myIter.More(); }
+ void Next() { myIter.Next(); }
+ const OpenGl_Group* Value() const { return (const OpenGl_Group* )(myIter.Value().operator->()); }
+ OpenGl_Group* ChangeValue() { return (OpenGl_Group* )(myIter.ChangeValue().operator->()); }
- void SetTransformPersistence (const CALL_DEF_TRANSFORM_PERSISTENCE &ATransPers);
+ private:
+ Graphic3d_SequenceOfGroup::Iterator myIter;
- void SetDegenerateModel (const Standard_Integer AMode, const float ASkipRatio);
+ };
- void SetAspectLine (const CALL_DEF_CONTEXTLINE &AContext);
- void SetAspectFace (const CALL_DEF_CONTEXTFILLAREA &AContext);
- void SetAspectMarker (const CALL_DEF_CONTEXTMARKER &AContext);
- void SetAspectText (const CALL_DEF_CONTEXTTEXT &AContext);
+public:
- void SetHighlightBox (const Handle(OpenGl_Context)& theGlCtx,
- const CALL_DEF_BOUNDBOX& theBoundBox);
+ //! Create empty structure
+ Standard_EXPORT OpenGl_Structure (const Handle(Graphic3d_StructureManager)& theManager);
- void ClearHighlightBox (const Handle(OpenGl_Context)& theGlCtx);
+ //! Setup structure graphic state
+ Standard_EXPORT virtual void OnVisibilityChanged() Standard_OVERRIDE;
- void SetHighlightColor (const Handle(OpenGl_Context)& theGlCtx,
- const Standard_ShortReal R,
- const Standard_ShortReal G,
- const Standard_ShortReal B);
+ //! Clear graphic data
+ Standard_EXPORT virtual void Clear() Standard_OVERRIDE;
- void ClearHighlightColor (const Handle(OpenGl_Context)& theGlCtx);
+ //! Connect other structure to this one
+ Standard_EXPORT virtual void Connect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
- void SetNamedStatus (const Standard_Integer aStatus) { myNamedStatus = aStatus; }
+ //! Disconnect other structure to this one
+ Standard_EXPORT virtual void Disconnect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
- void Connect (const OpenGl_Structure *astructure);
- void Disconnect (const OpenGl_Structure *astructure);
+ //! Synchronize structure aspects
+ Standard_EXPORT virtual void UpdateAspects() Standard_OVERRIDE;
- OpenGl_Group* AddGroup();
- void RemoveGroup (const Handle(OpenGl_Context)& theGlCtx,
- const OpenGl_Group* theGroup);
- void Clear (const Handle(OpenGl_Context)& theGlCtx);
+ //! Synchronize structure transformation
+ Standard_EXPORT virtual void UpdateTransformation() Standard_OVERRIDE;
+
+ //! Highlight entire structure with color
+ Standard_EXPORT virtual void HighlightWithColor (const Graphic3d_Vec3& theColor,
+ const Standard_Boolean theToCreate) Standard_OVERRIDE;
+
+ //! Highlight structure using boundary box
+ Standard_EXPORT virtual void HighlightWithBndBox (const Handle(Graphic3d_Structure)& theStruct,
+ const Standard_Boolean theToCreate) Standard_OVERRIDE;
+
+ //! Create shadow link to this structure
+ Standard_EXPORT virtual Handle(Graphic3d_CStructure) ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const Standard_OVERRIDE;
+
+ //! Create new group within this structure
+ Standard_EXPORT virtual Handle(Graphic3d_Group) NewGroup (const Handle(Graphic3d_Structure)& theStruct) Standard_OVERRIDE;
+
+ //! Remove group from this structure
+ Standard_EXPORT virtual void RemoveGroup (const Handle(Graphic3d_Group)& theGroup) Standard_OVERRIDE;
+
+public:
- //! Set z layer ID to display the structure in specified layer
- void SetZLayer (const Standard_Integer theLayerIndex);
+ //! @return graphic groups
+ virtual const Graphic3d_SequenceOfGroup& DrawGroups() const
+ {
+ return myGroups;
+ }
- //! Get z layer ID
- Standard_Integer GetZLayer () const;
+ //! Access graphic driver
+ OpenGl_GraphicDriver* GlDriver() const
+ {
+ return (OpenGl_GraphicDriver* )myGraphicDriver.operator->();
+ }
+ void SetAspectLine (const CALL_DEF_CONTEXTLINE &theAspect);
+ void SetAspectFace (const CALL_DEF_CONTEXTFILLAREA& theAspect);
+ void SetAspectMarker (const CALL_DEF_CONTEXTMARKER& theAspect);
+ void SetAspectText (const CALL_DEF_CONTEXTTEXT &theAspect);
+
+ void clearHighlightBox (const Handle(OpenGl_Context)& theGlCtx);
+
+ void setHighlightColor (const Handle(OpenGl_Context)& theGlCtx,
+ const Graphic3d_Vec3& theColor);
+
+ void clearHighlightColor (const Handle(OpenGl_Context)& theGlCtx);
+
+ Standard_EXPORT void Clear (const Handle(OpenGl_Context)& theGlCtx);
+
+ //! Renders groups of structure without applying any attributes (i.e. transform, material etc).
+ //! @param theWorkspace current workspace
+ //! @param theHasClosed flag will be set to TRUE if structure contains at least one group of closed primitives
+ virtual void renderGeometry (const Handle(OpenGl_Workspace)& theWorkspace,
+ bool& theHasClosed) const;
+
+ //! Renders groups of closed primitives without applying any attributes (i.e. transform, material etc).
+ virtual void renderClosedGeometry (const Handle(OpenGl_Workspace)& theWorkspace) const;
+
+ //! Renders the structure.
virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
- virtual void Release (const Handle(OpenGl_Context)& theGlCtx);
+
+ //! Releases structure resources.
+ virtual void Release (const Handle(OpenGl_Context)& theGlCtx);
+
+ //! Marks structure as not overlapping view volume (as it is by default).
+ void ResetCullingStatus() const
+ {
+ if (!IsAlwaysRendered())
+ {
+ myIsCulled = Standard_True;
+ }
+ }
+
+ //! Marks structure as overlapping the current view volume one.
+ //! The method is called during traverse of BVH tree.
+ void MarkAsNotCulled() const { myIsCulled = Standard_False; }
+
+ //! Returns Standard_False if the structure hits the current view volume, otherwise
+ //! returns Standard_True. The default value for all structures before each traverse
+ //! of BVH tree is Standard_True.
+ Standard_Boolean IsCulled() const { return myIsCulled; }
+
+ //! Checks if the structure should be included into BVH tree or not.
+ Standard_Boolean IsAlwaysRendered() const
+ {
+ return IsInfinite
+ || IsForHighlight
+ || IsMutable
+ || Is2dText
+ || (TransformPersistence.Flags & Graphic3d_TMF_2d) != 0
+ || (TransformPersistence.Flags & Graphic3d_TMF_PanPers) != 0
+ || (TransformPersistence.Flags & Graphic3d_TMF_TriedronPers) != 0;
+ }
+
+ //! This method releases GL resources without actual elements destruction.
+ //! As result structure could be correctly destroyed layer without GL context
+ //! (after last window was closed for example).
+ //!
+ //! Notice however that reusage of this structure after calling this method is incorrect
+ //! and will lead to broken visualization due to loosed data.
+ Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theGlCtx);
+
+ //! Returns instanced OpenGL structure.
+ const OpenGl_Structure* InstancedStructure() const { return myInstancedStructure; }
+
+ //! Returns OpenGL face aspect.
+ const OpenGl_AspectFace* AspectFace() const { return myAspectFace; }
+
+ //! Returns structure modification state (for ray-tracing).
+ Standard_Size ModificationState() const { return myModificationState; }
+
+ //! Resets structure modification state (for ray-tracing).
+ void ResetModificationState() const { myModificationState = 0; }
+
+ //! Is the structure ray-tracable (contains ray-tracable elements)?
+ Standard_Boolean IsRaytracable() const;
protected:
- virtual ~OpenGl_Structure();
+ Standard_EXPORT virtual ~OpenGl_Structure();
+
+ //! Updates ray-tracable status for structure and its parents.
+ void UpdateStateIfRaytracable (const Standard_Boolean toCheck = Standard_True) const;
protected:
- //Structure_LABBegin
- OpenGl_Matrix* myTransformation;
- TEL_TRANSFORM_PERSISTENCE* myTransPers;
- DEGENERATION* myDegenerateModel;
OpenGl_AspectLine* myAspectLine;
OpenGl_AspectFace* myAspectFace;
OpenGl_AspectMarker* myAspectMarker;
OpenGl_AspectText* myAspectText;
- //Structure_LABHighlight
- OpenGl_Group* myHighlightBox;
+
+ Handle(OpenGl_Group) myHighlightBox;
TEL_COLOUR* myHighlightColor;
- //Structure_LABVisibility
- //Structure_LABPick
- int myNamedStatus; //Structure_LABNameSet
- int myZLayer;
- OpenGl_ListOfStructure myConnected;
- OpenGl_ListOfGroup myGroups;
+ OpenGl_Structure* myInstancedStructure;
+
+ mutable Standard_Boolean myIsRaytracable;
+ mutable Standard_Size myModificationState;
+
+ mutable Standard_Boolean myIsCulled; //!< A status specifying is structure needs to be rendered after BVH tree traverse.
+
+ Standard_Boolean myIsMirrored; //!< Used to tell OpenGl to interpret polygons in clockwise order.
public:
- DEFINE_STANDARD_ALLOC
+ DEFINE_STANDARD_RTTI(OpenGl_Structure, Graphic3d_CStructure) // Type definition
};
-#endif //OpenGl_Structure_Header
+DEFINE_STANDARD_HANDLE(OpenGl_Structure, Graphic3d_CStructure)
+
+#endif // OpenGl_Structure_Header