LibreOffice Module vcl (master)  1
lineinfo.cxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
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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 <tools/stream.hxx>
21 #include <tools/vcompat.hxx>
22 #include <vcl/lineinfo.hxx>
26 #include <numeric>
27 
28 
30  : mnWidth(0)
31  , mnDashLen(0)
32  , mnDotLen(0)
33  , mnDistance(0)
34  , meLineJoin(basegfx::B2DLineJoin::Round)
35  , meLineCap(css::drawing::LineCap_BUTT)
36  , meStyle(LineStyle::Solid)
37  , mnDashCount(0)
38  , mnDotCount(0)
39 {
40 }
41 
42 inline bool ImplLineInfo::operator==( const ImplLineInfo& rB ) const
43 {
44  return(meStyle == rB.meStyle
45  && mnWidth == rB.mnWidth
46  && mnDashCount == rB.mnDashCount
47  && mnDashLen == rB.mnDashLen
48  && mnDotCount == rB.mnDotCount
49  && mnDotLen == rB.mnDotLen
50  && mnDistance == rB.mnDistance
51  && meLineJoin == rB.meLineJoin
52  && meLineCap == rB.meLineCap);
53 }
54 
55 
56 LineInfo::LineInfo( LineStyle eStyle, sal_Int32 nWidth ) : mpImplLineInfo()
57 {
58  mpImplLineInfo->meStyle = eStyle;
59  mpImplLineInfo->mnWidth = nWidth;
60 }
61 
62 LineInfo::LineInfo( const LineInfo& ) = default;
63 
64 LineInfo::LineInfo( LineInfo&& ) = default;
65 
66 LineInfo::~LineInfo() = default;
67 
68 LineInfo& LineInfo::operator=( const LineInfo& ) = default;
69 
70 LineInfo& LineInfo::operator=( LineInfo&& ) = default;
71 
72 bool LineInfo::operator==( const LineInfo& rLineInfo ) const
73 {
74  return mpImplLineInfo == rLineInfo.mpImplLineInfo;
75 }
76 
77 void LineInfo::SetStyle( LineStyle eStyle )
78 {
79  mpImplLineInfo->meStyle = eStyle;
80 }
81 
82 void LineInfo::SetWidth( sal_Int32 nWidth )
83 {
84  mpImplLineInfo->mnWidth = nWidth;
85 }
86 
87 void LineInfo::SetDashCount( sal_uInt16 nDashCount )
88 {
89  mpImplLineInfo->mnDashCount = nDashCount;
90 }
91 
92 void LineInfo::SetDashLen( sal_Int32 nDashLen )
93 {
94  mpImplLineInfo->mnDashLen = nDashLen;
95 }
96 
97 void LineInfo::SetDotCount( sal_uInt16 nDotCount )
98 {
99  mpImplLineInfo->mnDotCount = nDotCount;
100 }
101 
102 void LineInfo::SetDotLen( sal_Int32 nDotLen )
103 {
104  mpImplLineInfo->mnDotLen = nDotLen;
105 }
106 
107 void LineInfo::SetDistance( sal_Int32 nDistance )
108 {
109  mpImplLineInfo->mnDistance = nDistance;
110 }
111 
112 void LineInfo::SetLineJoin(basegfx::B2DLineJoin eLineJoin)
113 {
114 
115  if(eLineJoin != mpImplLineInfo->meLineJoin)
116  {
117  mpImplLineInfo->meLineJoin = eLineJoin;
118  }
119 }
120 
121 void LineInfo::SetLineCap(css::drawing::LineCap eLineCap)
122 {
123  if(eLineCap != mpImplLineInfo->meLineCap)
124  {
125  mpImplLineInfo->meLineCap = eLineCap;
126  }
127 }
128 
129 bool LineInfo::IsDefault() const
130 {
131  return( !mpImplLineInfo->mnWidth
132  && ( LineStyle::Solid == mpImplLineInfo->meStyle )
133  && ( css::drawing::LineCap_BUTT == mpImplLineInfo->meLineCap));
134 }
135 
136 SvStream& ReadLineInfo( SvStream& rIStm, LineInfo& rLineInfo )
137 {
138  VersionCompat aCompat( rIStm, StreamMode::READ );
139  sal_uInt16 nTmp16(0);
140  sal_Int32 nTmp32(0);
141 
142  rIStm.ReadUInt16( nTmp16 ); rLineInfo.mpImplLineInfo->meStyle = static_cast<LineStyle>(nTmp16);
143  rIStm.ReadInt32( nTmp32 );
144  rLineInfo.mpImplLineInfo->mnWidth = nTmp32;
145 
146  if( aCompat.GetVersion() >= 2 )
147  {
148  // version 2
149  rIStm.ReadUInt16( rLineInfo.mpImplLineInfo->mnDashCount ).ReadInt32( nTmp32 );
150  rLineInfo.mpImplLineInfo->mnDashLen = nTmp32;
151  rIStm.ReadUInt16( rLineInfo.mpImplLineInfo->mnDotCount ).ReadInt32( nTmp32 );
152  rLineInfo.mpImplLineInfo->mnDotLen = nTmp32;
153  rIStm.ReadInt32( nTmp32 );
154  rLineInfo.mpImplLineInfo->mnDistance = nTmp32;
155  }
156 
157  if( aCompat.GetVersion() >= 3 )
158  {
159  // version 3
160  rIStm.ReadUInt16( nTmp16 ); rLineInfo.mpImplLineInfo->meLineJoin = static_cast<basegfx::B2DLineJoin>(nTmp16);
161  }
162 
163  if( aCompat.GetVersion() >= 4 )
164  {
165  // version 4
166  rIStm.ReadUInt16( nTmp16 ); rLineInfo.mpImplLineInfo->meLineCap = static_cast<css::drawing::LineCap>(nTmp16);
167  }
168 
169  return rIStm;
170 }
171 
172 SvStream& WriteLineInfo( SvStream& rOStm, const LineInfo& rLineInfo )
173 {
174  VersionCompat aCompat( rOStm, StreamMode::WRITE, 4 );
175 
176  // version 1
177  rOStm.WriteUInt16( static_cast<sal_uInt16>(rLineInfo.mpImplLineInfo->meStyle) )
178  .WriteInt32( rLineInfo.mpImplLineInfo->mnWidth );
179 
180  // since version2
181  rOStm.WriteUInt16( rLineInfo.mpImplLineInfo->mnDashCount )
182  .WriteInt32( rLineInfo.mpImplLineInfo->mnDashLen );
183  rOStm.WriteUInt16( rLineInfo.mpImplLineInfo->mnDotCount )
184  .WriteInt32( rLineInfo.mpImplLineInfo->mnDotLen );
185  rOStm.WriteInt32( rLineInfo.mpImplLineInfo->mnDistance );
186 
187  // since version3
188  rOStm.WriteUInt16( static_cast<sal_uInt16>(rLineInfo.mpImplLineInfo->meLineJoin) );
189 
190  // since version4
191  rOStm.WriteUInt16( static_cast<sal_uInt16>(rLineInfo.mpImplLineInfo->meLineCap) );
192 
193  return rOStm;
194 }
195 
196 void LineInfo::applyToB2DPolyPolygon(
197  basegfx::B2DPolyPolygon& io_rLinePolyPolygon,
198  basegfx::B2DPolyPolygon& o_rFillPolyPolygon) const
199 {
200  o_rFillPolyPolygon.clear();
201 
202  if(io_rLinePolyPolygon.count())
203  {
204  if(LineStyle::Dash == GetStyle())
205  {
206  ::std::vector< double > fDotDashArray;
207  const double fDashLen(GetDashLen());
208  const double fDotLen(GetDotLen());
209  const double fDistance(GetDistance());
210 
211  for(sal_uInt16 a(0); a < GetDashCount(); a++)
212  {
213  fDotDashArray.push_back(fDashLen);
214  fDotDashArray.push_back(fDistance);
215  }
216 
217  for(sal_uInt16 b(0); b < GetDotCount(); b++)
218  {
219  fDotDashArray.push_back(fDotLen);
220  fDotDashArray.push_back(fDistance);
221  }
222 
223  const double fAccumulated(::std::accumulate(fDotDashArray.begin(), fDotDashArray.end(), 0.0));
224 
225  if(fAccumulated > 0.0)
226  {
227  basegfx::B2DPolyPolygon aResult;
228 
229  for(auto const& rPolygon : io_rLinePolyPolygon)
230  {
231  basegfx::B2DPolyPolygon aLineTraget;
233  rPolygon,
234  fDotDashArray,
235  &aLineTraget);
236  aResult.append(aLineTraget);
237  }
238 
239  io_rLinePolyPolygon = aResult;
240  }
241  }
242 
243  if(GetWidth() > 1 && io_rLinePolyPolygon.count())
244  {
245  const double fHalfLineWidth((GetWidth() * 0.5) + 0.5);
246 
247  for(auto const& rPolygon : io_rLinePolyPolygon)
248  {
249  o_rFillPolyPolygon.append(basegfx::utils::createAreaGeometry(
250  rPolygon,
251  fHalfLineWidth,
252  GetLineJoin(),
253  GetLineCap()));
254  }
255 
256  io_rLinePolyPolygon.clear();
257  }
258  }
259 }
260 
261 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
SvStream & WriteUInt16(sal_uInt16 nUInt16)
SvStream & WriteInt32(sal_Int32 nInt32)
SvStream & ReadUInt16(sal_uInt16 &rUInt16)
sal_Int32 mnDashLen
Definition: lineinfo.hxx:36
sal_Int32 mnWidth
Definition: lineinfo.hxx:35
B2DPolyPolygon createAreaGeometry(const B2DPolygon &rCandidate, double fHalfLineWidth, B2DLineJoin eJoin, css::drawing::LineCap eCap, double fMaxAllowedAngle=basegfx::deg2rad(12.5), double fMaxPartOfEdge=0.4, double fMiterMinimumAngle=basegfx::deg2rad(15.0), basegfx::triangulator::B2DTriangleVector *pTriangles=nullptr)
sal_Int32 mnDotLen
Definition: lineinfo.hxx:37
LineStyle
Definition: vclenum.hxx:183
void applyLineDashing(const B2DPolygon &rCandidate, const std::vector< double > &rDotDashArray, B2DPolyPolygon *pLineTarget, B2DPolyPolygon *pGapTarget, double fDotDashLength)
SvStream & ReadLineInfo(SvStream &rIStm, LineInfo &rLineInfo)
Definition: lineinfo.cxx:136
sal_uInt16 GetVersion() const
B2DLineJoin
sal_uInt16 mnDotCount
Definition: lineinfo.hxx:45
sal_Int32 mnDistance
Definition: lineinfo.hxx:38
SvStream & ReadInt32(sal_Int32 &rInt32)
bool operator==(const ImplLineInfo &) const
Definition: lineinfo.cxx:42
void append(const B2DPolygon &rPolygon, sal_uInt32 nCount=1)
sal_uInt32 count() const
LineStyle meStyle
Definition: lineinfo.hxx:42
basegfx::B2DLineJoin meLineJoin
Definition: lineinfo.hxx:40
double mnWidth
css::drawing::LineCap meLineCap
Definition: lineinfo.hxx:41
std::string Round
SvStream & WriteLineInfo(SvStream &rOStm, const LineInfo &rLineInfo)
Definition: lineinfo.cxx:172
sal_uInt16 mnDashCount
Definition: lineinfo.hxx:44