LibreOffice Module sc (master)  1
invmerge.cxx
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9  * This file incorporates work covered by the following license notice:
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15  * License, Version 2.0 (the "License"); you may not use this file
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17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
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19 
20 #include <osl/diagnose.h>
21 
22 #include <invmerge.hxx>
23 
24 ScInvertMerger::ScInvertMerger( ::std::vector< tools::Rectangle >* pRectangles ) :
25  pRects( pRectangles )
26 {
27  // collect rectangles instead of inverting
28 }
29 
31 {
32  Flush();
33 }
34 
36 {
37  FlushLine();
38  FlushTotal();
39 
40  OSL_ENSURE( aLineRect.IsEmpty() && aTotalRect.IsEmpty(), "Flush: not empty" );
41 
42  if ( !pRects )
43  return;
44 
45  // also join vertically if there are non-adjacent columns involved
46 
47  size_t nComparePos = 0;
48  while ( nComparePos < pRects->size() )
49  {
50  tools::Rectangle aCompRect = (*pRects)[nComparePos];
51  sal_Int32 nBottom = aCompRect.Bottom();
52  size_t nOtherPos = nComparePos + 1;
53 
54  while ( nOtherPos < pRects->size() )
55  {
56  tools::Rectangle aOtherRect = (*pRects)[nOtherPos];
57  if ( aOtherRect.Top() > nBottom + 1 )
58  {
59  // rectangles are sorted, so we can stop searching
60  break;
61  }
62  if ( aOtherRect.Top() == nBottom + 1 &&
63  aOtherRect.Left() == aCompRect.Left() &&
64  aOtherRect.Right() == aCompRect.Right() )
65  {
66  // extend first rectangle
67  nBottom = aOtherRect.Bottom();
68  aCompRect.SetBottom( nBottom );
69  (*pRects)[nComparePos].SetBottom( nBottom );
70 
71  // remove second rectangle
72  pRects->erase( pRects->begin() + nOtherPos );
73 
74  // continue at unmodified nOtherPos
75  }
76  else
77  ++nOtherPos;
78  }
79 
80  ++nComparePos;
81  }
82 }
83 
85 {
86  if( aTotalRect.IsEmpty() )
87  return; // nothing to do
88 
89  if ( pRects )
90  pRects->push_back( aTotalRect );
91 
93 }
94 
96 {
97  if( aLineRect.IsEmpty() )
98  return; // nothing to do
99 
100  if ( aTotalRect.IsEmpty() )
101  {
102  aTotalRect = aLineRect; // start new total rect
103  }
104  else
105  {
106  if ( aLineRect.Left() == aTotalRect.Left() &&
107  aLineRect.Right() == aTotalRect.Right() &&
108  aLineRect.Top() == aTotalRect.Bottom() + 1 )
109  {
110  // extend total rect
112  }
113  else
114  {
115  FlushTotal(); // draw old total rect
116  aTotalRect = aLineRect; // and start new one
117  }
118  }
119 
121 }
122 
124 {
125  tools::Rectangle aJustified = rRect;
126  if ( rRect.Left() > rRect.Right() ) // switch for RTL layout
127  {
128  aJustified.SetLeft( rRect.Right() );
129  aJustified.SetRight( rRect.Left() );
130  }
131 
132  if ( aLineRect.IsEmpty() )
133  {
134  aLineRect = aJustified; // start new line rect
135  }
136  else
137  {
138  bool bDone = false;
139  if ( aJustified.Top() == aLineRect.Top() &&
140  aJustified.Bottom() == aLineRect.Bottom() )
141  {
142  // try to extend line rect
143  if ( aJustified.Left() == aLineRect.Right() + 1 )
144  {
145  aLineRect.SetRight( aJustified.Right() );
146  bDone = true;
147  }
148  else if ( aJustified.Right() + 1 == aLineRect.Left() ) // for RTL layout
149  {
150  aLineRect.SetLeft( aJustified.Left() );
151  bDone = true;
152  }
153  }
154  if (!bDone)
155  {
156  FlushLine(); // use old line rect for total rect
157  aLineRect = aJustified; // and start new one
158  }
159  }
160 }
161 
162 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
void Flush()
Definition: invmerge.cxx:35
void FlushTotal()
Definition: invmerge.cxx:84
void AddRect(const tools::Rectangle &rRect)
Definition: invmerge.cxx:123
void FlushLine()
Definition: invmerge.cxx:95
bool IsEmpty() const
long Right() const
long Top() const
::std::vector< tools::Rectangle > * pRects
Definition: invmerge.hxx:30
void SetRight(long v)
long Bottom() const
size
tools::Rectangle aTotalRect
Definition: invmerge.hxx:31
void SetBottom(long v)
ScInvertMerger(::std::vector< tools::Rectangle > *pRectangles)
Definition: invmerge.cxx:24
long Left() const
void SetLeft(long v)
tools::Rectangle aLineRect
Definition: invmerge.hxx:32