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f751596e46
Redesign of selection mechanism: - implemented 3-level BVH tree for selection; - selection now calculates in 3D space; - intersection tests were moved to SelectMgr_BaseFrustum descendants; - removed .cdl files in Select3D and .cdl related to selection in MeshVS; - SelectMgr_ViewerSelectors are now shared between local and global contexts; - transformations of sensitive entities are now stored in SelectMgr_SelectableObject only. Sensitive entities are independent from transformations, it is applied to SelectMgr_SelectingVolumeManager instance only; - connected and multiple connected interactive objects are now represented by their child objects only for SelectMgr_SelectionManager; - if interactive object has child objects, they will be stored as separate objects in SelectMgr_SelectionManager now. - test cases bugs/vis/bug24623_1, bug24623_2, bug24623_3, bug24623_4 to test performance and memory issues.
243 lines
9.6 KiB
Plaintext
243 lines
9.6 KiB
Plaintext
-- Created on: 1995-02-13
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-- Created by: Mister rmi
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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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-- Modified by ROB : Wed Oct 98
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-- Add One Method : RecomputeSelection
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-- Modification of Update Method (just computes the
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-- flagged selections)
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class SelectionManager from SelectMgr inherits TShared from MMgt
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---Purpose: A framework to manage selection from the point of
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-- view of viewer selectors. These can be added and
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-- removed, and selection modes can be activated and
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-- deactivated. In addition, objects may be known to all
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-- selectors or only to some.
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uses
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AsciiString from TCollection,
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ViewerSelector from SelectMgr,
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SelectableObject from SelectMgr,
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CString from Standard,
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MapOfTransient from TColStd,
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TypeOfUpdate from SelectMgr,
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DataMapOfObjectSelectors from SelectMgr
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is
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Create returns SelectionManager from SelectMgr;
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--- Purpose: Constructs an empty selection manager object.
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---Category: Management of the view selectors
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Add (me : mutable;
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theSelector : ViewerSelector from SelectMgr)
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is static;
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---Purpose: Adds the viewer selector theSelector to the list of known items.
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Remove (me : mutable;
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theSelector : ViewerSelector from SelectMgr)
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is static;
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---Purpose: Removes viewer selector theSelector from the list of known items.
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Contains (me;
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theSelector : ViewerSelector from SelectMgr)
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returns Boolean
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is static;
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---Purpose: Returns true if the manager contains the viewer selector theSelector in a list of known items.
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Contains (me;
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theObject : SelectableObject from SelectMgr)
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returns Boolean
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is static;
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---Purpose: Returns true if the manager contains the selectable object theObject.
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Load (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer = -1)
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is static;
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---Purpose: Loads and computes selection mode theMode (if it is not equal to -1) in global context and adds selectable
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-- object to BVH tree. If the object theObject has an already calculated selection with mode theMode and it was removed,
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-- the selection will be recalculated.
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Load (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theSelector : ViewerSelector from SelectMgr;
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theMode : Integer = -1)
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is static;
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---Purpose: Loads and computes selection mode theMode (if it is not equal to -1) and adds selectable object to BVH tree.
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-- Does not perform check of existance of theObject in global context before addition, but adds theSelector to local context.
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Remove (me : mutable;
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theObject : SelectableObject from SelectMgr)
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is static;
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---Purpose: Removes selectable object theObject from all viewer selectors it was added to previously, removes it from all contexts
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-- and clears all computed selections of theObject.
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Remove (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theSelector : ViewerSelector from SelectMgr)
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is static;
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---Purpose: Removes theObject from theSelector, does not clear selections and unbind theObject from context maps.
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Activate (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer = 0;
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theSelector : ViewerSelector from SelectMgr = NULL)
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is static;
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---Purpose: Activates the selection mode theMode in the selector theSelector for the selectable object anObject.
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-- By default, theMode is equal to 0. If theSelector is set to default (NULL), the selection with the mode theMode
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-- will be activated in all the viewers available.
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Deactivate (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer = -1;
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theSelector : ViewerSelector from SelectMgr = NULL);
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---Purpose: Deactivates mode theMode of theObject in theSelector. If theMode value is set to default (-1), all
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-- avtive selection modes will be deactivated. Likewise, if theSelector value is set to default (NULL), theMode
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-- will be deactivated in all viewer selectors.
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IsActivated (me;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer = -1;
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theSelector : ViewerSelector from SelectMgr = NULL)
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returns Boolean from Standard;
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---Purpose: Returns true if the selection with theMode is active for the selectable object theObject and selector theSelector.
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-- If all parameters are set to default values, it returns it there is any active selection in any known viewer selector for
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-- object theObject.
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ClearSelectionStructures (me : mutable;
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theObj : SelectableObject from SelectMgr;
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theMode : Integer from Standard = -1;
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theSelector : ViewerSelector from SelectMgr = NULL)
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is static;
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---Purpose: Removes sensitive entities from all viewer selectors
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-- after method Clear() was called to the selection they belonged to
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-- or it was recomputed somehow.
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RestoreSelectionStructures (me : mutable;
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theObj : SelectableObject from SelectMgr;
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theMode : Integer from Standard = -1;
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theSelector : ViewerSelector from SelectMgr = NULL)
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is static;
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---Purpose: Re-adds newely calculated sensitive entities of recomputed selection
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-- defined by mode theMode to all viewer selectors contained that selection.
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RecomputeSelection (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theIsForce : Boolean from Standard = Standard_False;
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theMode : Integer from Standard = -1);
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---Purpose: Recomputes activated selections of theObject for all known viewer selectors according to theMode specified.
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-- If theMode is set to default (-1), then all activated selections will be recomputed. If theIsForce is set to true,
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-- then selection mode theMode for object theObject will be recomputed regardless of its activation status.
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Update (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theIsForce : Boolean from Standard = Standard_True)
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is static;
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---Purpose: Updates all selections of theObject in all viewer selectors according to its current update status.
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-- If theIsForce is set to true, the call is equal to recomputation.
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Update (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theSelector : ViewerSelector from SelectMgr;
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theIsForce : Boolean from Standard = Standard_True)
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is static;
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---Purpose: Updates all selections of theObject in specified viewer selector according to its current update status.
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-- If theIsForce is set to true, the call is equal to recomputation.
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SetUpdateMode (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theType : TypeOfUpdate from SelectMgr)
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is static;
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---Purpose: Sets type of update of all selections of theObject to the given theType.
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SetUpdateMode (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer from Standard;
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theType : TypeOfUpdate from SelectMgr)
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is static;
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---Purpose: Sets type of update of selection with theMode of theObject to the given theType.
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loadMode (me : mutable;
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theObject : SelectableObject from SelectMgr;
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theMode : Integer;
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theSelector : ViewerSelector from SelectMgr = NULL)
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is static private;
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---Purpose: Loads and creates selection structures for object theObject with mode theMode in specified
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-- viewer selector theSelector. If theSelector is set to default value (NULL), the selection mode
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-- created will be added to all known viewer selectors.
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rebuildSelectionStructures (me : mutable;
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theSelector : ViewerSelector from SelectMgr = NULL)
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is static private;
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---Purpose: Internal function that marks 1st level BVH of the object theObj as
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-- outdated.
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fields
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-- myselectors : selectors dedicated to one particular view;
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-- myglobal : objects which will be selectable in all the views
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-- mylocal : objects with the selectors where they are selectable
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mySelectors : MapOfTransient from TColStd;
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myGlobal : MapOfTransient from TColStd;
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myLocal : DataMapOfObjectSelectors from SelectMgr;
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end SelectionManager;
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