sdext/source/presenter/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
  25 using namespace ::com::sun::star;
  26 using namespace ::com::sun::star::uno;
  27
  28 namespace {
  29
  30 sal_Int32 Right (const awt::Rectangle& rBox)
  31 {
  32     return rBox.X + rBox.Width - 1;
  33 }
  34
  35 sal_Int32 Bottom (const awt::Rectangle& rBox)
  36 {
  37     return rBox.Y + rBox.Height - 1;
  38 }
  39
  40 sal_Int32 Width (const sal_Int32 nLeft, const sal_Int32 nRight)
  41 {
  42     return nRight - nLeft + 1;
  43 }
  44
  45 sal_Int32 Height (const sal_Int32 nTop, const sal_Int32 nBottom)
  46 {
  47     return nBottom - nTop + 1;
  48 }
  49
  50 } // end of anonymous namespace
  51
  52 namespace sdext { namespace presenter {
  53
  54 sal_Int32 PresenterGeometryHelper::Floor (const double nValue)
  55 {
  56     return sal::static_int_cast<sal_Int32>(floor(nValue));
  57 }
  58
  59 sal_Int32 PresenterGeometryHelper::Ceil (const double nValue)
  60 {
  61     return sal::static_int_cast<sal_Int32>(ceil(nValue));
  62 }
  63
  64 sal_Int32 PresenterGeometryHelper::Round (const double nValue)
  65 {
  66     return sal::static_int_cast<sal_Int32>(floor(0.5 + nValue));
  67 }
  68
  69 awt::Rectangle PresenterGeometryHelper::ConvertRectangle (
  70     const geometry::RealRectangle2D& rBox)
  71 {
  72     const sal_Int32 nLeft (Floor(rBox.X1));
  73     const sal_Int32 nTop (Floor(rBox.Y1));
  74     const sal_Int32 nRight (Ceil(rBox.X2));
  75     const sal_Int32 nBottom (Ceil(rBox.Y2));
  76     return awt::Rectangle (nLeft,nTop,nRight-nLeft,nBottom-nTop);
  77 }
  78
  79 awt::Rectangle PresenterGeometryHelper::ConvertRectangleWithConstantSize (
  80     const geometry::RealRectangle2D& rBox)
  81 {
  82     return awt::Rectangle (
  83         Round(rBox.X1),
  84         Round(rBox.Y1),
  85         Round(rBox.X2 - rBox.X1),
  86         Round(rBox.Y2 - rBox.Y1));
  87 }
  88
  89 geometry::RealRectangle2D PresenterGeometryHelper::ConvertRectangle (
  90     const css::awt::Rectangle& rBox)
  91 {
  92     return geometry::RealRectangle2D(
  93         rBox.X,
  94         rBox.Y,
  95         rBox.X + rBox.Width,
  96         rBox.Y + rBox.Height);
  97 }
  98
  99 awt::Rectangle PresenterGeometryHelper::TranslateRectangle (
 100     const css::awt::Rectangle& rBox,
 101     const sal_Int32 nXOffset,
 102     const sal_Int32 nYOffset)
 103 {
 104     return awt::Rectangle(rBox.X + nXOffset, rBox.Y + nYOffset, rBox.Width, rBox.Height);
 105 }
 106
 107 awt::Rectangle PresenterGeometryHelper::Intersection (
 108     const css::awt::Rectangle& rBox1,
 109     const css::awt::Rectangle& rBox2)
 110 {
 111     const sal_Int32 nLeft (::std::max(rBox1.X, rBox2.X));
 112     const sal_Int32 nTop (::std::max(rBox1.Y, rBox2.Y));
 113     const sal_Int32 nRight (::std::min(Right(rBox1), Right(rBox2)));
 114     const sal_Int32 nBottom (::std::min(Bottom(rBox1), Bottom(rBox2)));
 115     if (nLeft >= nRight || nTop >= nBottom)
 116         return awt::Rectangle();
 117     else
 118         return awt::Rectangle(nLeft,nTop, Width(nLeft,nRight), Height(nTop,nBottom));
 119 }
 120
 121 geometry::RealRectangle2D PresenterGeometryHelper::Intersection (
 122     const geometry::RealRectangle2D& rBox1,
 123     const geometry::RealRectangle2D& rBox2)
 124 {
 125     const double nLeft (::std::max(rBox1.X1, rBox2.X1));
 126     const double nTop (::std::max(rBox1.Y1, rBox2.Y1));
 127     const double nRight (::std::min(rBox1.X2, rBox2.X2));
 128     const double nBottom (::std::min(rBox1.Y2, rBox2.Y2));
 129     if (nLeft >= nRight || nTop >= nBottom)
 130         return geometry::RealRectangle2D(0,0,0,0);
 131     else
 132         return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
 133 }
 134
 135 bool PresenterGeometryHelper::IsInside (
 136     const css::geometry::RealRectangle2D& rBox,
 137     const css::geometry::RealPoint2D& rPoint)
 138 {
 139     return rBox.X1 <= rPoint.X
 140         && rBox.Y1 <= rPoint.Y
 141         && rBox.X2 >= rPoint.X
 142         && rBox.Y2 >= rPoint.Y;
 143 }
 144
 145 bool PresenterGeometryHelper::IsInside (
 146     const css::awt::Rectangle& rBox1,
 147     const css::awt::Rectangle& rBox2)
 148 {
 149     return rBox1.X >= rBox2.X
 150         && rBox1.Y >= rBox2.Y
 151         && rBox1.X+rBox1.Width <= rBox2.X+rBox2.Width
 152         && rBox1.Y+rBox1.Height <= rBox2.Y+rBox2.Height;
 153 }
 154
 155 geometry::RealRectangle2D PresenterGeometryHelper::Union (
 156     const geometry::RealRectangle2D& rBox1,
 157     const geometry::RealRectangle2D& rBox2)
 158 {
 159     const double nLeft (::std::min(rBox1.X1, rBox2.X1));
 160     const double nTop (::std::min(rBox1.Y1, rBox2.Y1));
 161     const double nRight (::std::max(rBox1.X2, rBox2.X2));
 162     const double nBottom (::std::max(rBox1.Y2, rBox2.Y2));
 163     if (nLeft >= nRight || nTop >= nBottom)
 164         return geometry::RealRectangle2D(0,0,0,0);
 165     else
 166         return geometry::RealRectangle2D(nLeft,nTop, nRight, nBottom);
 167 }
 168
 169 bool PresenterGeometryHelper::AreRectanglesDisjoint (
 170     const css::awt::Rectangle& rBox1,
 171     const css::awt::Rectangle& rBox2)
 172 {
 173     return rBox1.X+rBox1.Width <= rBox2.X
 174         || rBox1.Y+rBox1.Height <= rBox2.Y
 175         || rBox1.X >= rBox2.X+rBox2.Width
 176         || rBox1.Y >= rBox2.Y+rBox2.Height;
 177 }
 178
 179 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 180     const awt::Rectangle& rBox,
 181     const Reference<rendering::XGraphicDevice>& rxDevice)
 182 {
 183     if ( ! rxDevice.is())
 184         return NULL;
 185
 186     Sequence<Sequence<geometry::RealPoint2D> > aPoints(1);
 187     aPoints[0] = Sequence<geometry::RealPoint2D>(4);
 188     aPoints[0][0] = geometry::RealPoint2D(rBox.X, rBox.Y);
 189     aPoints[0][1] = geometry::RealPoint2D(rBox.X, rBox.Y+rBox.Height);
 190     aPoints[0][2] = geometry::RealPoint2D(rBox.X+rBox.Width, rBox.Y+rBox.Height);
 191     aPoints[0][3] = geometry::RealPoint2D(rBox.X+rBox.Width, rBox.Y);
 192     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 193         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 194     Reference<rendering::XPolyPolygon2D> xRectangle (xPolygon, UNO_QUERY);
 195     if (xRectangle.is())
 196         xRectangle->setClosed(0, sal_True);
 197
 198     return xRectangle;
 199 }
 200
 201 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 202     const geometry::RealRectangle2D& rBox,
 203     const Reference<rendering::XGraphicDevice>& rxDevice)
 204 {
 205     if ( ! rxDevice.is())
 206         return NULL;
 207
 208     Sequence<Sequence<geometry::RealPoint2D> > aPoints(1);
 209     aPoints[0] = Sequence<geometry::RealPoint2D>(4);
 210     aPoints[0][0] = geometry::RealPoint2D(rBox.X1, rBox.Y1);
 211     aPoints[0][1] = geometry::RealPoint2D(rBox.X1, rBox.Y2);
 212     aPoints[0][2] = geometry::RealPoint2D(rBox.X2, rBox.Y2);
 213     aPoints[0][3] = geometry::RealPoint2D(rBox.X2, rBox.Y1);
 214     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 215         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 216     Reference<rendering::XPolyPolygon2D> xRectangle (xPolygon, UNO_QUERY);
 217     if (xRectangle.is())
 218         xRectangle->setClosed(0, sal_True);
 219
 220     return xRectangle;
 221 }
 222
 223 Reference<rendering::XPolyPolygon2D> PresenterGeometryHelper::CreatePolygon(
 224     const ::std::vector<css::awt::Rectangle>& rBoxes,
 225     const Reference<rendering::XGraphicDevice>& rxDevice)
 226 {
 227     if ( ! rxDevice.is())
 228         return NULL;
 229
 230     const sal_Int32 nCount (rBoxes.size());
 231     Sequence<Sequence<geometry::RealPoint2D> > aPoints(nCount);
 232     for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
 233     {
 234         const awt::Rectangle& rBox (rBoxes[nIndex]);
 235         aPoints[nIndex] = Sequence<geometry::RealPoint2D>(4);
 236         aPoints[nIndex][0] = geometry::RealPoint2D(rBox.X, rBox.Y);
 237         aPoints[nIndex][1] = geometry::RealPoint2D(rBox.X, rBox.Y+rBox.Height);
 238         aPoints[nIndex][2] = geometry::RealPoint2D(rBox.X+rBox.Width, rBox.Y+rBox.Height);
 239         aPoints[nIndex][3] = geometry::RealPoint2D(rBox.X+rBox.Width, rBox.Y);
 240     }
 241
 242     Reference<rendering::XLinePolyPolygon2D> xPolygon (
 243         rxDevice->createCompatibleLinePolyPolygon(aPoints));
 244     Reference<rendering::XPolyPolygon2D> xRectangle (xPolygon, UNO_QUERY);
 245     if (xRectangle.is())
 246         for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
 247             xRectangle->setClosed(nIndex, sal_True);
 248
 249     return xRectangle;
 250 }
 251
 252 } }
 253
 254 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */