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Diffstat (limited to 'sdext/source/presenter/PresenterGeometryHelper.cxx')
| -rw-r--r-- | sdext/source/presenter/PresenterGeometryHelper.cxx | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/sdext/source/presenter/PresenterGeometryHelper.cxx b/sdext/source/presenter/PresenterGeometryHelper.cxx new file mode 100644 index 000000000..b2ad35c63 --- /dev/null +++ b/sdext/source/presenter/PresenterGeometryHelper.cxx @@ -0,0 +1,262 @@ +/* -*- 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: */ |