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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sdr/contact/viewcontactofe3dpolygon.hxx>
#include <polygn3d.hxx>
#include <drawinglayer/primitive3d/sdrpolypolygonprimitive3d.hxx>
#include <sdr/primitive2d/sdrattributecreator.hxx>
#include <sdr/primitive3d/sdrattributecreator3d.hxx>
#include <basegfx/polygon/b3dpolygon.hxx>
#include <basegfx/polygon/b3dpolypolygontools.hxx>
#include <memory>
namespace sdr::contact
{
ViewContactOfE3dPolygon::ViewContactOfE3dPolygon(E3dPolygonObj& rPolygon)
: ViewContactOfE3d(rPolygon)
{
}
ViewContactOfE3dPolygon::~ViewContactOfE3dPolygon()
{
}
drawinglayer::primitive3d::Primitive3DContainer ViewContactOfE3dPolygon::createViewIndependentPrimitive3DContainer() const
{
drawinglayer::primitive3d::Primitive3DContainer xRetval;
const SfxItemSet& rItemSet = GetE3dPolygonObj().GetMergedItemSet();
const bool bSuppressFill(GetE3dPolygonObj().GetLineOnly());
const drawinglayer::attribute::SdrLineFillShadowAttribute3D aAttribute(
drawinglayer::primitive2d::createNewSdrLineFillShadowAttribute(rItemSet, bSuppressFill));
// get extrude geometry
basegfx::B3DPolyPolygon aPolyPolygon3D(GetE3dPolygonObj().GetPolyPolygon3D());
const basegfx::B3DPolyPolygon aPolyNormals3D(GetE3dPolygonObj().GetPolyNormals3D());
const basegfx::B2DPolyPolygon aPolyTexture2D(GetE3dPolygonObj().GetPolyTexture2D());
const bool bNormals(aPolyNormals3D.count() && aPolyNormals3D.count() == aPolyPolygon3D.count());
const bool bTexture(aPolyTexture2D.count() && aPolyTexture2D.count() == aPolyPolygon3D.count());
if(bNormals || bTexture)
{
for(sal_uInt32 a(0); a < aPolyPolygon3D.count(); a++)
{
basegfx::B3DPolygon aCandidate3D(aPolyPolygon3D.getB3DPolygon(a));
basegfx::B3DPolygon aNormals3D;
basegfx::B2DPolygon aTexture2D;
if(bNormals)
{
aNormals3D = aPolyNormals3D.getB3DPolygon(a);
}
if(bTexture)
{
aTexture2D = aPolyTexture2D.getB2DPolygon(a);
}
for(sal_uInt32 b(0); b < aCandidate3D.count(); b++)
{
if(bNormals)
{
sal_uInt32 nNormalCount = aNormals3D.count();
if( b < nNormalCount )
aCandidate3D.setNormal(b, aNormals3D.getB3DPoint(b));
else if( nNormalCount > 0 )
aCandidate3D.setNormal(b, aNormals3D.getB3DPoint(0));
}
if(bTexture)
{
sal_uInt32 nTextureCount = aTexture2D.count();
if( b < nTextureCount )
aCandidate3D.setTextureCoordinate(b, aTexture2D.getB2DPoint(b));
else if( nTextureCount > 0 )
aCandidate3D.setTextureCoordinate(b, aTexture2D.getB2DPoint(0));
}
}
aPolyPolygon3D.setB3DPolygon(a, aCandidate3D);
}
}
// get 3D Object Attributes
std::unique_ptr<drawinglayer::attribute::Sdr3DObjectAttribute> pSdr3DObjectAttribute(drawinglayer::primitive2d::createNewSdr3DObjectAttribute(rItemSet));
// calculate texture size
basegfx::B2DVector aTextureSize(1.0, 1.0);
if(bTexture)
{
// #i98314#
// create texture size from object's size
const basegfx::B3DRange aObjectRange(basegfx::utils::getRange(aPolyPolygon3D));
double fWidth(0.0);
double fHeight(0.0);
// this is a polygon object, so Width/Height and/or Depth may be zero (e.g. left
// wall of chart). Take this into account
if(basegfx::fTools::equalZero(aObjectRange.getWidth()))
{
// width is zero, use height and depth
fWidth = aObjectRange.getHeight();
fHeight = aObjectRange.getDepth();
}
else if(basegfx::fTools::equalZero(aObjectRange.getHeight()))
{
// height is zero, use width and depth
fWidth = aObjectRange.getWidth();
fHeight = aObjectRange.getDepth();
}
else
{
// use width and height
fWidth = aObjectRange.getWidth();
fHeight = aObjectRange.getHeight();
}
if(basegfx::fTools::lessOrEqual(fWidth, 0.0) ||basegfx::fTools::lessOrEqual(fHeight, 0.0))
{
// no texture; fallback to very small size
aTextureSize.setX(0.01);
aTextureSize.setY(0.01);
}
else
{
aTextureSize.setX(fWidth);
aTextureSize.setY(fHeight);
}
}
// #i98295#
// unfortunately, this SdrObject type which allows a free 3d geometry definition was defined
// wrong topologically in relation to its plane normal and 3D visibility when it was invented
// a long time ago. Since the API allows creation of this SDrObject type, it is not possible to
// simply change this definition. Only the chart should use it, and at least this object type
// only exists at Runtime (is not saved and/or loaded in any FileFormat). Still someone external
// may have used it in its API. To not risk wrong 3D lightings, I have to switch the orientation
// of the polygon here
aPolyPolygon3D.flip();
// create primitive and add
const basegfx::B3DHomMatrix aWorldTransform;
const drawinglayer::primitive3d::Primitive3DReference xReference(
new drawinglayer::primitive3d::SdrPolyPolygonPrimitive3D(
aPolyPolygon3D, aWorldTransform, aTextureSize, aAttribute, *pSdr3DObjectAttribute));
xRetval = { xReference };
return xRetval;
}
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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