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// Created on: 2020-01-25
// Created by: Natalia ERMOLAEVA
// Copyright (c) 2020 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// 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.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <inspector/View_DisplayPreview.hxx>
#include <inspector/View_PreviewParameters.hxx>
#include <inspector/ViewControl_Tools.hxx>
#include <inspector/Convert_Tools.hxx>
#include <inspector/Convert_TransientShape.hxx>
#include <AIS_InteractiveContext.hxx>
#include <AIS_InteractiveObject.hxx>
#include <AIS_Shape.hxx>
#include <BRep_Builder.hxx>
#include <BRepBuilderAPI_MakeVertex.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <Geom_Axis2Placement.hxx>
#include <Prs3d_PointAspect.hxx>
#include <TopoDS_Compound.hxx>
static void enableGlobalClipping (const Handle(AIS_InteractiveObject)& theObject, const bool theIsEnable)
{
if (theIsEnable)
{
theObject->SetClipPlanes (Handle(Graphic3d_SequenceOfHClipPlane)());
}
else
{
Handle(Graphic3d_SequenceOfHClipPlane) aPlanes = new Graphic3d_SequenceOfHClipPlane();
aPlanes->SetOverrideGlobal (Standard_True);
theObject->SetClipPlanes (aPlanes);
}
}
// =======================================================================
// function : Constructor
// purpose :
// =======================================================================
View_DisplayPreview::View_DisplayPreview()
{
myPreviewParameters = new View_PreviewParameters();
}
// =======================================================================
// function : SetContext
// purpose :
// =======================================================================
void View_DisplayPreview::SetContext (const Handle(AIS_InteractiveContext)& theContext)
{
if (myContext == theContext)
return;
// remove all preview presentations from the previous context, display it in the new
myContext = theContext;
if (!theContext.IsNull())
myPreviewParameters->GetDrawer()->Link (theContext->DefaultDrawer());
}
// =======================================================================
// function : UpdatePreview
// purpose :
// =======================================================================
void View_DisplayPreview::UpdatePreview (const View_DisplayActionType,
const NCollection_List<Handle(Standard_Transient)>& thePresentations)
{
if (myContext.IsNull())
return;
int aPreviewDisplayMode = AIS_Shaded;
// clear previous previews
for (NCollection_List<Handle(AIS_InteractiveObject)>::Iterator anIterator (myPreviewReadyPresentations); anIterator.More(); anIterator.Next())
{
if (!anIterator.Value()->GetContext().IsNull())
anIterator.Value()->GetContext()->Remove (anIterator.Value(), Standard_True);
}
myPreviewReadyPresentations.Clear();
if (thePresentations.IsEmpty())
{
if (!myPreviewPresentation.IsNull() && !myPreviewPresentation->GetContext().IsNull())
myPreviewPresentation->GetContext()->Remove (myPreviewPresentation, Standard_True);
myPreviewPresentation = NULL;
return;
}
// display parameter previews
BRep_Builder aBuilder;
TopoDS_Compound aCompound;
aBuilder.MakeCompound (aCompound);
for (NCollection_List<Handle(Standard_Transient)>::Iterator anIterator (thePresentations); anIterator.More(); anIterator.Next())
{
if (Handle(Convert_TransientShape) aShapePtr = Handle(Convert_TransientShape)::DownCast (anIterator.Value()))
{
aBuilder.Add (aCompound, aShapePtr->Shape());
}
Handle(AIS_InteractiveObject) aPrs = Handle(AIS_InteractiveObject)::DownCast (anIterator.Value());
if (!aPrs.IsNull() && aPrs->GetContext().IsNull()/*is not displayed in another context*/)
{
myContext->Display (aPrs, aPreviewDisplayMode, -1/*does not participate in selection*/, Standard_True);
enableGlobalClipping(aPrs, false);
myPreviewReadyPresentations.Append (aPrs);
}
}
if (myPreviewPresentation.IsNull())
{
myPreviewPresentation = new AIS_Shape (aCompound);
Quantity_Color aColor(Quantity_NOC_TOMATO);
myPreviewPresentation->Attributes()->SetPointAspect (new Prs3d_PointAspect (Aspect_TOM_O_PLUS, aColor, 3.0));
myPreviewPresentation->SetAttributes (myPreviewParameters->GetDrawer());
myContext->Display (myPreviewPresentation, aPreviewDisplayMode, -1/*does not participate in selection*/, Standard_True);
enableGlobalClipping(myPreviewPresentation, false);
}
else
{
Handle(AIS_Shape)::DownCast (myPreviewPresentation)->Set (aCompound);
if (!myPreviewPresentation->GetContext().IsNull())
{
myPreviewPresentation->GetContext()->Redisplay (myPreviewPresentation, Standard_True);
}
}
}
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