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3202bf1e9e
Graphic3d_SequenceOfHClipPlane now inherits Standard_Transient. PrsMgr_PresentableObject, Graphic3d_Structure, Graphic3d_CStructure, V3d_View, OpenGl_View now manages the plane list by Handle. The getters ::GetClipPlanes() has been removed, setters taking non-handle ::SetClipPlanes() has been marked deprecated. OpenGl_Structure::Render() and SelectMgr_ViewerSelector::checkOverlap() now disable global (view) clipping planes for objects with flags Graphic3d_TMF_TriedronPers and Graphic3d_TMF_2d or with new flag Graphic3d_SequenceOfHClipPlane::ToOverrideGlobal(). OpenGl_Clipping now implements interface for managing clipping planes without copying the sequences. The filtering of duplicates is no more performed by OpenGl_Clipping - application is responsible to not do this. OpenGl_Clipping tries avoiding unnecessary allocations for managing list of active planes. MFC sample has been updated to use V3d_View::ClipPlanes() method.
303 lines
14 KiB
C++
303 lines
14 KiB
C++
// Created on: 1995-01-25
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// Created by: Jean-Louis Frenkel
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// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2014 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 _PrsMgr_PresentableObject_HeaderFile
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#define _PrsMgr_PresentableObject_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <PrsMgr_Presentations.hxx>
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#include <PrsMgr_TypeOfPresentation3d.hxx>
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#include <Graphic3d_SequenceOfHClipPlane.hxx>
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#include <Standard_Boolean.hxx>
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#include <Graphic3d_ZLayerId.hxx>
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#include <PrsMgr_PresentableObjectPointer.hxx>
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#include <gp_GTrsf.hxx>
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#include <gp_Trsf.hxx>
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#include <PrsMgr_ListOfPresentableObjects.hxx>
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#include <MMgt_TShared.hxx>
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#include <PrsMgr_Presentation.hxx>
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#include <PrsMgr_PresentationManager3d.hxx>
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#include <Standard_Integer.hxx>
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#include <Graphic3d_TransformPers.hxx>
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#include <Graphic3d_TransModeFlags.hxx>
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#include <TColStd_ListOfInteger.hxx>
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#include <Graphic3d_ClipPlane.hxx>
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class Standard_NotImplemented;
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class PrsMgr_Presentation;
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class PrsMgr_PresentationManager;
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class Graphic3d_Structure;
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class Graphic3d_DataStructureManager;
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class Geom_Transformation;
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class Prs3d_Presentation;
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class Prs3d_Projector;
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class gp_Pnt;
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class gp_Trsf;
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class PrsMgr_PresentableObject;
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DEFINE_STANDARD_HANDLE(PrsMgr_PresentableObject, MMgt_TShared)
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//! A framework to supply the Graphic3d
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//! structure of the object to be presented. On the first
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//! display request, this structure is created by calling the
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//! appropriate algorithm and retaining this frameworkfor
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//! further display.
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//! This abstract framework is inherited in Application
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//! Interactive Services (AIS), notably in:
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//! - AIS_InteractiveObject
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//! - AIS_ConnectedInteractive
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//! - AIS_MultipleConnectedInteractive
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//! - AIS_Shape
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//! Consequently, 3D presentation should be handled by
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//! the relevant daughter classes and their member
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//! functions in AIS. This is particularly true in the
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//! creation of new interactive objects.
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class PrsMgr_PresentableObject : public MMgt_TShared
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{
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public:
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Standard_EXPORT PrsMgr_Presentations& Presentations();
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//! Returns information on whether the object accepts display in HLR mode or not.
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PrsMgr_TypeOfPresentation3d TypeOfPresentation3d() const { return myTypeOfPresentation3d; }
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//! Sets up Transform Persistence Mode for this object.
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//! This function used to lock in object position, rotation and / or zooming relative to camera position.
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//! Object will be drawn in the origin setted by APoint parameter (except Graphic3d_TMF_TriedronPers flag
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//! - see description later). aFlag should be:
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//! - Graphic3d_TMF_None - no persistence attributes (reset);
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//! - Graphic3d_TMF_PanPers - object doesn't move;
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//! - Graphic3d_TMF_ZoomPers - object doesn't resize;
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//! - Graphic3d_TMF_RotatePers - object doesn't rotate;
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//! - Graphic3d_TMF_FullPers - pan, zoom and rotate transform persistence;
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//! - Graphic3d_TMF_TriedronPers - object behaves like trihedron;
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//! - combination (Graphic3d_TMF_PanPers | Graphic3d_TMF_ZoomPers);
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//! - combination (Graphic3d_TMF_PanPers | Graphic3d_TMF_RotatePers);
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//! - combination (Graphic3d_TMF_ZoomPers | Graphic3d_TMF_RotatePers).
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//! If Graphic3d_TMF_TriedronPers or Graphic3d_TMF_2d persistence mode selected APoint coordinates X and Y means:
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//! - X = 0.0, Y = 0.0 - center of view window;
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//! - X > 0.0, Y > 0.0 - right upper corner of view window;
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//! - X > 0.0, Y < 0.0 - right lower corner of view window;
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//! - X < 0.0, Y > 0.0 - left upper corner of view window;
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//! - X < 0.0, Y < 0.0 - left lower corner of view window.
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//! And Z coordinate defines the gap from border of view window (except center position).
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Standard_EXPORT virtual void SetTransformPersistence (const Graphic3d_TransModeFlags& aFlag, const gp_Pnt& APoint = gp_Pnt (0.0, 0.0, 0.0));
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//! Gets Transform Persistence Mode for this object
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Standard_EXPORT Graphic3d_TransModeFlags GetTransformPersistenceMode() const;
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//! Gets point of transform persistence for this object
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Standard_EXPORT gp_Pnt GetTransformPersistencePoint() const;
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//! @return transform persistence of the presentable object.
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const Graphic3d_TransformPers& TransformPersistence() const { return myTransformPersistence; }
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Standard_EXPORT void SetTypeOfPresentation (const PrsMgr_TypeOfPresentation3d aType);
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//! flags the Prs of mode <AMode> to be Updated.
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//! the Update will be done when needed.
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Standard_EXPORT void SetToUpdate (const Standard_Integer aMode);
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//! flags all the Presentations to be Updated.
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Standard_EXPORT void SetToUpdate();
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//! gives the list of modes which are flagged "to be updated".
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Standard_EXPORT void ToBeUpdated (TColStd_ListOfInteger& ListOfMode) const;
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//! Sets local transformation to theTransformation.
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Standard_EXPORT virtual void SetLocalTransformation (const gp_Trsf& theTransformation);
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//! Returns true if object has a transformation that is different from the identity.
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Standard_EXPORT Standard_Boolean HasTransformation() const;
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const gp_Trsf& LocalTransformation() const { return myLocalTransformation; }
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const gp_Trsf& Transformation() const { return myTransformation; }
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const gp_GTrsf& InversedTransformation() const { return myInvTransformation; }
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//! resets local transformation to identity.
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Standard_EXPORT virtual void ResetTransformation();
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Standard_EXPORT virtual void UpdateTransformation();
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Standard_EXPORT virtual void UpdateTransformation (const Handle(Prs3d_Presentation)& P);
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//! Set Z layer ID and update all presentations of the presentable object.
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//! The layers mechanism allows drawing objects in higher layers in overlay of objects in lower layers.
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Standard_EXPORT virtual void SetZLayer (const Graphic3d_ZLayerId theLayerId);
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//! Get ID of Z layer.
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Standard_EXPORT Graphic3d_ZLayerId ZLayer() const;
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//! Adds clip plane for graphical clipping for all display mode
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//! presentations. The composition of clip planes truncates the rendering
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//! space to convex volume. Please be aware that number of supported
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//! clip plane is limited. The planes which exceed the limit are ignored.
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//! Besides of this, some planes can be already set in view where the object
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//! is shown: the number of these planes should be substracted from limit
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//! to predict the maximum possible number of object clipping planes.
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//! @param thePlane [in] the clip plane to be appended to map of clip planes.
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Standard_EXPORT virtual void AddClipPlane (const Handle(Graphic3d_ClipPlane)& thePlane);
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//! Removes previously added clip plane.
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//! @param thePlane [in] the clip plane to be removed from map of clip planes.
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Standard_EXPORT virtual void RemoveClipPlane (const Handle(Graphic3d_ClipPlane)& thePlane);
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//! Set clip planes for graphical clipping for all display mode presentations.
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//! The composition of clip planes truncates the rendering space to convex volume.
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//! Please be aware that number of supported clip plane is limited.
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//! The planes which exceed the limit are ignored.
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//! Besides of this, some planes can be already set in view where the object is shown:
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//! the number of these planes should be subtracted from limit to predict the maximum
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//! possible number of object clipping planes.
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Standard_EXPORT virtual void SetClipPlanes (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes);
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Standard_DEPRECATED("This method is deprecated - overload taking Handle should be used instead")
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void SetClipPlanes (const Graphic3d_SequenceOfHClipPlane& thePlanes)
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{
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Handle(Graphic3d_SequenceOfHClipPlane) aPlanes = new Graphic3d_SequenceOfHClipPlane (thePlanes);
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SetClipPlanes (aPlanes);
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}
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//! Get clip planes.
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//! @return set of previously added clip planes for all display mode presentations.
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const Handle(Graphic3d_SequenceOfHClipPlane)& ClipPlanes() const { return myClipPlanes; }
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//! Sets if the object has mutable nature (content or location will be changed regularly).
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//! This method should be called before object displaying to take effect.
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Standard_EXPORT virtual void SetMutable (const Standard_Boolean theIsMutable);
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//! Returns true if object has mutable nature (content or location are be changed regularly).
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//! Mutable object will be managed in different way than static onces (another optimizations).
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Standard_Boolean IsMutable() const { return myIsMutable; }
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//! Makes theObject child of current object in scene hierarchy.
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Standard_EXPORT virtual void AddChild (const Handle(PrsMgr_PresentableObject)& theObject);
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//! Removes theObject from children of current object in scene hierarchy.
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Standard_EXPORT virtual void RemoveChild (const Handle(PrsMgr_PresentableObject)& theObject);
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//! Returns children of the current object.
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const PrsMgr_ListOfPresentableObjects& Children() const { return myChildren; }
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//! Returns true if object should have own presentations.
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Standard_Boolean HasOwnPresentations() const { return myHasOwnPresentations; }
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//! Returns parent of current object in scene hierarchy.
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PrsMgr_PresentableObjectPointer Parent() const { return myParent; }
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friend class PrsMgr_Presentation;
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friend class PrsMgr_PresentationManager;
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friend
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Standard_EXPORT Handle(Graphic3d_Structure) PrsMgr_Presentation::Compute (const Handle(Graphic3d_DataStructureManager)& theProjector);
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friend
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Standard_EXPORT void PrsMgr_Presentation::Compute (const Handle(Graphic3d_DataStructureManager)& theProjector, const Handle(Graphic3d_Structure)& theGivenStruct);
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friend
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Standard_EXPORT Handle(Graphic3d_Structure) PrsMgr_Presentation::Compute (const Handle(Graphic3d_DataStructureManager)& theProjector, const Handle(Geom_Transformation)& theTrsf);
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friend
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Standard_EXPORT void PrsMgr_Presentation::Compute (const Handle(Graphic3d_DataStructureManager)& theProjector, const Handle(Geom_Transformation)& theTrsf, const Handle(Graphic3d_Structure)& theGivenStruct);
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DEFINE_STANDARD_RTTIEXT(PrsMgr_PresentableObject,MMgt_TShared)
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protected:
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Standard_EXPORT PrsMgr_PresentableObject(const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d = PrsMgr_TOP_AllView);
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Standard_EXPORT virtual ~PrsMgr_PresentableObject();
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//! Calculates the 3D view aPresentation and its
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//! updates. The latter are managed by aPresentationManager.
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//! aPresentableObject has the display mode aMode;
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//! this has the default value of 0, that is, the wireframe display mode.
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Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager3d)& aPresentationManager, const Handle(Prs3d_Presentation)& aPresentation, const Standard_Integer aMode);
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//! Calculates the 3D view aPresentation and its
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//! updates. The latter are managed by
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//! aPresentationManager. Each of the views in the
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//! viewer and every modification such as rotation, for
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//! example, entails recalculation.
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//! It must be redefined to implement hidden line removal
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//! for the object. The user never calls this method
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//! himself. This is done via the InteractiveContext object
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//! and is dependent on the point of view from which the
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//! object is displayed.
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Standard_EXPORT virtual void Compute (const Handle(Prs3d_Projector)& aProjector, const Handle(Prs3d_Presentation)& aPresentation);
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//! Calculates the 3D view aPresentation and its
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//! updates. The latter are managed by
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//! aPresentationManager. A point of view is provided
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//! by the projector aProjector, and the geometric
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//! transformation which has transformed associated
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//! presentable objects is specified by aTrsf.
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//! This function is to be used in case where a hidden
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//! line removal display cannot be calculated
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//! automatically. This occurs when associated
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//! presentable objects have been transformed
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//! geometrically, but not translated.
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//! Warning
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//! The transformation aTrsf must be applied to the
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//! object before computation.
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Standard_EXPORT virtual void Compute (const Handle(Prs3d_Projector)& aProjector, const Handle(Geom_Transformation)& aTrsf, const Handle(Prs3d_Presentation)& aPresentation);
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//! recomputes all presentations of the object.
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Standard_EXPORT void Update (const Standard_Boolean AllModes = Standard_False);
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//! Recomputes the presentation in the given mode.
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//! If ClearOther is true, other presentation will be cleared.
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Standard_EXPORT void Update (const Standard_Integer aMode, const Standard_Boolean ClearOther);
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//! High-level interface for controlling polygon offsets
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Standard_EXPORT virtual void Fill (const Handle(PrsMgr_PresentationManager)& aPresentationManager, const Handle(PrsMgr_Presentation)& aPresentation, const Standard_Integer aMode);
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//! Sets myCombinedParentTransform to theTransformation. Thus object receives transformation
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//! from parent node and able to derive its own.
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Standard_EXPORT virtual void SetCombinedParentTransform (const gp_Trsf& theTransformation);
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//! General virtual method for internal update of presentation state
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//! when some modifications on list of clip planes occurs. Base
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//! implementation propagate clip planes to every presentation.
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Standard_EXPORT virtual void UpdateClipping();
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protected:
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PrsMgr_Presentations myPresentations;
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PrsMgr_TypeOfPresentation3d myTypeOfPresentation3d;
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Handle(Graphic3d_SequenceOfHClipPlane) myClipPlanes;
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Standard_Boolean myIsMutable;
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Graphic3d_ZLayerId myZLayer;
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Standard_Boolean myHasOwnPresentations;
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private:
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Graphic3d_TransformPers myTransformPersistence;
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PrsMgr_PresentableObjectPointer myParent;
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gp_Trsf myLocalTransformation;
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gp_Trsf myTransformation;
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gp_GTrsf myInvTransformation;
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gp_Trsf myCombinedParentTransform;
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PrsMgr_ListOfPresentableObjects myChildren;
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};
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#endif // _PrsMgr_PresentableObject_HeaderFile
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