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diff --git a/sdext/source/presenter/PresenterGeometryHelper.cxx b/sdext/source/presenter/PresenterGeometryHelper.cxx
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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 "PresenterGeometryHelper.hxx"
+
+#include <math.h>
+#include <algorithm>
+#include <o3tl/safeint.hxx>
+
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+namespace {
+
+sal_Int32 Right (const awt::Rectangle& rBox)
+{
+ return rBox.X + rBox.Width - 1;
+}
+
+sal_Int32 Bottom (const awt::Rectangle& rBox)
+{
+ return rBox.Y + rBox.Height - 1;
+}
+
+sal_Int32 Width (const sal_Int32 nLeft, const sal_Int32 nRight)
+{
+ return nRight - nLeft + 1;
+}
+
+sal_Int32 Height (const sal_Int32 nTop, const sal_Int32 nBottom)
+{
+ return nBottom - nTop + 1;
+}
+
+} // end of anonymous namespace
+
+namespace sdext::presenter {
+
+sal_Int32 PresenterGeometryHelper::Floor (const double nValue)
+{
+ return sal::static_int_cast<sal_Int32>(floor(nValue));
+}
+
+sal_Int32 PresenterGeometryHelper::Ceil (const double nValue)
+{
+ return sal::static_int_cast<sal_Int32>(ceil(nValue));
+}
+
+sal_Int32 PresenterGeometryHelper::Round (const double nValue)
+{
+ return sal::static_int_cast<sal_Int32>(floor(0.5 + nValue));
+}
+
+awt::Rectangle PresenterGeometryHelper::ConvertRectangle (
+ const geometry::RealRectangle2D& rBox)
+{
+ const sal_Int32 nLeft (Floor(rBox.X1));
+ const sal_Int32 nTop (Floor(rBox.Y1));
+ const sal_Int32 nRight (Ceil(rBox.X2));
+ const sal_Int32 nBottom (Ceil(rBox.Y2));
+ return awt::Rectangle (nLeft,nTop,nRight-nLeft,nBottom-nTop);
+}
+
+awt::Rectangle PresenterGeometryHelper::ConvertRectangleWithConstantSize (
+ const geometry::RealRectangle2D& rBox)
+{
+ return awt::Rectangle (
+ Round(rBox.X1),
+ Round(rBox.Y1),
+ Round(rBox.X2 - rBox.X1),
+ Round(rBox.Y2 - rBox.Y1));
+}
+
+geometry::RealRectangle2D PresenterGeometryHelper::ConvertRectangle (
+ const css::awt::Rectangle& rBox)
+{
+ return geometry::RealRectangle2D(
+ rBox.X,
+ rBox.Y,
+ rBox.X + rBox.Width,
+ rBox.Y + rBox.Height);
+}
+
+awt::Rectangle PresenterGeometryHelper::TranslateRectangle (
+ const css::awt::Rectangle& rBox,
+ const sal_Int32 nXOffset,
+ const sal_Int32 nYOffset)
+{
+ return awt::Rectangle(rBox.X + nXOffset, rBox.Y + nYOffset, rBox.Width, rBox.Height);
+}
+
+awt::Rectangle PresenterGeometryHelper::Intersection (
+ const css::awt::Rectangle& rBox1,
+ const css::awt::Rectangle& rBox2)
+{
+ const sal_Int32 nLeft (::std::max(rBox1.X, rBox2.X));
+ const sal_Int32 nTop (::std::max(rBox1.Y, rBox2.Y));
+ const sal_Int32 nRight (::std::min(Right(rBox1), Right(rBox2)));
+ const sal_Int32 nBottom (::std::min(Bottom(rBox1), Bottom(rBox2)));
+ if (nLeft >= nRight || nTop >= nBottom)
+ return awt::Rectangle();
+ else
+ return awt::Rectangle(nLeft,nTop, Width(nLeft,nRight), Height(nTop,nBottom));
+}
+
+geometry::RealRectangle2D PresenterGeometryHelper::Intersection (
+ const geometry::RealRectangle2D& rBox1,
+ const geometry::RealRectangle2D& rBox2)
+{
+ const double nLeft (::std::max(rBox1.X1, rBox2.X1));
+ const double nTop (::std::max(rBox1.Y1, rBox2.Y1));
+ const double nRight (::std::min(rBox1.X2, rBox2.X2));
+ const double nBottom (::std::min(rBox1.Y2, rBox2.Y2));
+ if (nLeft >= nRight || nTop >= nBottom)
+ return geometry::RealRectangle2D(0,0,0,0);
+ else
+ return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
+}
+
+bool PresenterGeometryHelper::IsInside (
+ const css::geometry::RealRectangle2D& rBox,
+ const css::geometry::RealPoint2D& rPoint)
+{
+ return rBox.X1 <= rPoint.X
+ && rBox.Y1 <= rPoint.Y
+ && rBox.X2 >= rPoint.X
+ && rBox.Y2 >= rPoint.Y;
+}
+
+bool PresenterGeometryHelper::IsInside (
+ const css::awt::Rectangle& rBox1,
+ const css::awt::Rectangle& rBox2)
+{
+ return rBox1.X >= rBox2.X
+ && rBox1.Y >= rBox2.Y
+ && rBox1.X+rBox1.Width <= rBox2.X+rBox2.Width
+ && rBox1.Y+rBox1.Height <= rBox2.Y+rBox2.Height;
+}
+
+geometry::RealRectangle2D PresenterGeometryHelper::Union (
+ const geometry::RealRectangle2D& rBox1,
+ const geometry::RealRectangle2D& rBox2)
+{
+ const double nLeft (::std::min(rBox1.X1, rBox2.X1));
+ const double nTop (::std::min(rBox1.Y1, rBox2.Y1));
+ const double nRight (::std::max(rBox1.X2, rBox2.X2));
+ const double nBottom (::std::max(rBox1.Y2, rBox2.Y2));
+ if (nLeft >= nRight || nTop >= nBottom)
+ return geometry::RealRectangle2D(0,0,0,0);
+ else
+ return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
+}
+
+bool PresenterGeometryHelper::AreRectanglesDisjoint (
+ const css::awt::Rectangle& rBox1,
+ const css::awt::Rectangle& rBox2)
+{
+ return rBox1.X+rBox1.Width <= rBox2.X
+ || rBox1.Y+rBox1.Height <= rBox2.Y
+ || rBox1.X >= rBox2.X+rBox2.Width
+ || rBox1.Y >= rBox2.Y+rBox2.Height;
+}
+
+Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
+ const awt::Rectangle& rBox,
+ const Reference<rendering::XGraphicDevice>& rxDevice)
+{
+ if ( ! rxDevice.is())
+ return nullptr;
+
+ Sequence<Sequence<geometry::RealPoint2D> > aPoints
+ {
+ {
+ { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y) },
+ { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
+ { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
+ { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y) }
+ }
+ };
+ Reference<rendering::XLinePolyPolygon2D> xPolygon (
+ rxDevice->createCompatibleLinePolyPolygon(aPoints));
+ if (xPolygon.is())
+ xPolygon->setClosed(0, true);
+
+ return xPolygon;
+}
+
+Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
+ const geometry::RealRectangle2D& rBox,
+ const Reference<rendering::XGraphicDevice>& rxDevice)
+{
+ if ( ! rxDevice.is())
+ return nullptr;
+
+ Sequence<Sequence<geometry::RealPoint2D> > aPoints
+ {
+ {
+ { rBox.X1, rBox.Y1 },
+ { rBox.X1, rBox.Y2 },
+ { rBox.X2, rBox.Y2 },
+ { rBox.X2, rBox.Y1 }
+ }
+ };
+ Reference<rendering::XLinePolyPolygon2D> xPolygon (
+ rxDevice->createCompatibleLinePolyPolygon(aPoints));
+ if (xPolygon.is())
+ xPolygon->setClosed(0, true);
+
+ return xPolygon;
+}
+
+Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
+ const ::std::vector<css::awt::Rectangle>& rBoxes,
+ const Reference<rendering::XGraphicDevice>& rxDevice)
+{
+ if ( ! rxDevice.is())
+ return nullptr;
+
+ const sal_Int32 nCount (rBoxes.size());
+ Sequence<Sequence<geometry::RealPoint2D> > aPoints(nCount);
+ auto aPointsRange = asNonConstRange(aPoints);
+ for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
+ {
+ const awt::Rectangle& rBox (rBoxes[nIndex]);
+ aPointsRange[nIndex] = Sequence<geometry::RealPoint2D>
+ {
+ { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y) },
+ { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
+ { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
+ { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y) }
+ };
+ }
+
+ Reference<rendering::XLinePolyPolygon2D> xPolygon (
+ rxDevice->createCompatibleLinePolyPolygon(aPoints));
+ if (xPolygon.is())
+ for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
+ xPolygon->setClosed(nIndex, true);
+
+ return xPolygon;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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