sd/source/console/PresenterGeometryHelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "PresenterGeometryHelper.hxx"
  21
  22 #include <math.h>
  23 #include <algorithm>
  24 #include <o3tl/safeint.hxx>
  25
  26
  27 using namespace ::com::sun::star;
  28 using namespace ::com::sun::star::uno;
  29
  30 namespace {
  31
  32 sal_Int32 Right (const awt::Rectangle& rBox)
  33 {
  34     return rBox.X + rBox.Width - 1;
  35 }
  36
  37 sal_Int32 Bottom (const awt::Rectangle& rBox)
  38 {
  39     return rBox.Y + rBox.Height - 1;
  40 }
  41
  42 sal_Int32 Width (const sal_Int32 nLeft, const sal_Int32 nRight)
  43 {
  44     return nRight - nLeft + 1;
  45 }
  46
  47 sal_Int32 Height (const sal_Int32 nTop, const sal_Int32 nBottom)
  48 {
  49     return nBottom - nTop + 1;
  50 }
  51
  52 } // end of anonymous namespace
  53
  54 namespace sdext::presenter {
  55
  56 sal_Int32 PresenterGeometryHelper::Floor (const double nValue)
  57 {
  58     return sal::static_int_cast<sal_Int32>(floor(nValue));
  59 }
  60
  61 sal_Int32 PresenterGeometryHelper::Ceil (const double nValue)
  62 {
  63     return sal::static_int_cast<sal_Int32>(ceil(nValue));
  64 }
  65
  66 sal_Int32 PresenterGeometryHelper::Round (const double nValue)
  67 {
  68     return sal::static_int_cast<sal_Int32>(floor(0.5 + nValue));
  69 }
  70
  71 awt::Rectangle PresenterGeometryHelper::ConvertRectangle (
  72     const geometry::RealRectangle2D& rBox)
  73 {
  74     const sal_Int32 nLeft (Floor(rBox.X1));
  75     const sal_Int32 nTop (Floor(rBox.Y1));
  76     const sal_Int32 nRight (Ceil(rBox.X2));
  77     const sal_Int32 nBottom (Ceil(rBox.Y2));
  78     return awt::Rectangle (nLeft,nTop,nRight-nLeft,nBottom-nTop);
  79 }
  80
  81 awt::Rectangle PresenterGeometryHelper::ConvertRectangleWithConstantSize (
  82     const geometry::RealRectangle2D& rBox)
  83 {
  84     return awt::Rectangle (
  85         Round(rBox.X1),
  86         Round(rBox.Y1),
  87         Round(rBox.X2 - rBox.X1),
  88         Round(rBox.Y2 - rBox.Y1));
  89 }
  90
  91 geometry::RealRectangle2D PresenterGeometryHelper::ConvertRectangle (
  92     const css::awt::Rectangle& rBox)
  93 {
  94     return geometry::RealRectangle2D(
  95         rBox.X,
  96         rBox.Y,
  97         rBox.X + rBox.Width,
  98         rBox.Y + rBox.Height);
  99 }
 100
 101 awt::Rectangle PresenterGeometryHelper::TranslateRectangle (
 102     const css::awt::Rectangle& rBox,
 103     const sal_Int32 nXOffset,
 104     const sal_Int32 nYOffset)
 105 {
 106     return awt::Rectangle(rBox.X + nXOffset, rBox.Y + nYOffset, rBox.Width, rBox.Height);
 107 }
 108
 109 awt::Rectangle PresenterGeometryHelper::Intersection (
 110     const css::awt::Rectangle& rBox1,
 111     const css::awt::Rectangle& rBox2)
 112 {
 113     const sal_Int32 nLeft (::std::max(rBox1.X, rBox2.X));
 114     const sal_Int32 nTop (::std::max(rBox1.Y, rBox2.Y));
 115     const sal_Int32 nRight (::std::min(Right(rBox1), Right(rBox2)));
 116     const sal_Int32 nBottom (::std::min(Bottom(rBox1), Bottom(rBox2)));
 117     if (nLeft >= nRight || nTop >= nBottom)
 118         return awt::Rectangle();
 119     else
 120         return awt::Rectangle(nLeft,nTop, Width(nLeft,nRight), Height(nTop,nBottom));
 121 }
 122
 123 geometry::RealRectangle2D PresenterGeometryHelper::Intersection (
 124     const geometry::RealRectangle2D& rBox1,
 125     const geometry::RealRectangle2D& rBox2)
 126 {
 127     const double nLeft (::std::max(rBox1.X1, rBox2.X1));
 128     const double nTop (::std::max(rBox1.Y1, rBox2.Y1));
 129     const double nRight (::std::min(rBox1.X2, rBox2.X2));
 130     const double nBottom (::std::min(rBox1.Y2, rBox2.Y2));
 131     if (nLeft >= nRight || nTop >= nBottom)
 132         return geometry::RealRectangle2D(0,0,0,0);
 133     else
 134         return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
 135 }
 136
 137 bool PresenterGeometryHelper::IsInside (
 138     const css::geometry::RealRectangle2D& rBox,
 139     const css::geometry::RealPoint2D& rPoint)
 140 {
 141     return rBox.X1 <= rPoint.X
 142         && rBox.Y1 <= rPoint.Y
 143         && rBox.X2 >= rPoint.X
 144         && rBox.Y2 >= rPoint.Y;
 145 }
 146
 147 bool PresenterGeometryHelper::IsInside (
 148     const css::awt::Rectangle& rBox1,
 149     const css::awt::Rectangle& rBox2)
 150 {
 151     return rBox1.X >= rBox2.X
 152         && rBox1.Y >= rBox2.Y
 153         && rBox1.X+rBox1.Width <= rBox2.X+rBox2.Width
 154         && rBox1.Y+rBox1.Height <= rBox2.Y+rBox2.Height;
 155 }
 156
 157 geometry::RealRectangle2D PresenterGeometryHelper::Union (
 158     const geometry::RealRectangle2D& rBox1,
 159     const geometry::RealRectangle2D& rBox2)
 160 {
 161     const double nLeft (::std::min(rBox1.X1, rBox2.X1));
 162     const double nTop (::std::min(rBox1.Y1, rBox2.Y1));
 163     const double nRight (::std::max(rBox1.X2, rBox2.X2));
 164     const double nBottom (::std::max(rBox1.Y2, rBox2.Y2));
 165     if (nLeft >= nRight || nTop >= nBottom)
 166         return geometry::RealRectangle2D(0,0,0,0);
 167     else
 168         return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
 169 }
 170
 171 bool PresenterGeometryHelper::AreRectanglesDisjoint (
 172     const css::awt::Rectangle& rBox1,
 173     const css::awt::Rectangle& rBox2)
 174 {
 175     return rBox1.X+rBox1.Width <= rBox2.X
 176         || rBox1.Y+rBox1.Height <= rBox2.Y
 177         || rBox1.X >= rBox2.X+rBox2.Width
 178         || rBox1.Y >= rBox2.Y+rBox2.Height;
 179 }
 180
 181 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 182     const awt::Rectangle& rBox,
 183     const Reference<rendering::XGraphicDevice>& rxDevice)
 184 {
 185     if ( ! rxDevice.is())
 186         return nullptr;
 187
 188     Sequence<Sequence<geometry::RealPoint2D> > aPoints
 189     {
 190         {
 191             { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y) },
 192             { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
 193             { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
 194             { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y) }
 195         }
 196     };
 197     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 198         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 199     if (xPolygon.is())
 200         xPolygon->setClosed(0, true);
 201
 202     return xPolygon;
 203 }
 204
 205 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 206     const geometry::RealRectangle2D& rBox,
 207     const Reference<rendering::XGraphicDevice>& rxDevice)
 208 {
 209     if ( ! rxDevice.is())
 210         return nullptr;
 211
 212     Sequence<Sequence<geometry::RealPoint2D> > aPoints
 213     {
 214         {
 215             { rBox.X1, rBox.Y1 },
 216             { rBox.X1, rBox.Y2 },
 217             { rBox.X2, rBox.Y2 },
 218             { rBox.X2, rBox.Y1 }
 219         }
 220     };
 221     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 222         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 223     if (xPolygon.is())
 224         xPolygon->setClosed(0, true);
 225
 226     return xPolygon;
 227 }
 228
 229 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 230     const ::std::vector<css::awt::Rectangle>& rBoxes,
 231     const Reference<rendering::XGraphicDevice>& rxDevice)
 232 {
 233     if ( ! rxDevice.is())
 234         return nullptr;
 235
 236     const sal_Int32 nCount (rBoxes.size());
 237     Sequence<Sequence<geometry::RealPoint2D> > aPoints(nCount);
 238     auto aPointsRange = asNonConstRange(aPoints);
 239     for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
 240     {
 241         const awt::Rectangle& rBox (rBoxes[nIndex]);
 242         aPointsRange[nIndex] = Sequence<geometry::RealPoint2D>
 243         {
 244             { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y) },
 245             { o3tl::narrowing<double>(rBox.X), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
 246             { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y+rBox.Height) },
 247             { o3tl::narrowing<double>(rBox.X+rBox.Width), o3tl::narrowing<double>(rBox.Y) }
 248         };
 249     }
 250
 251     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 252         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 253     if (xPolygon.is())
 254         for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
 255             xPolygon->setClosed(nIndex, true);
 256
 257     return xPolygon;
 258 }
 259
 260 }
 261
 262 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */