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overlayselection.cxx
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19 
26 #include <vcl/svapp.hxx>
27 #include <vcl/outdev.hxx>
28 #include <vcl/settings.hxx>
33 
34 
35 namespace sdr::overlay
36 {
37  // combine rages geometrically to a single, ORed polygon
38  static basegfx::B2DPolyPolygon impCombineRangesToPolyPolygon(const std::vector< basegfx::B2DRange >& rRanges)
39  {
40  const sal_uInt32 nCount(rRanges.size());
42 
43  for(sal_uInt32 a(0); a < nCount; a++)
44  {
45  const basegfx::B2DPolygon aDiscretePolygon(basegfx::utils::createPolygonFromRect(rRanges[a]));
46 
47  if(0 == a)
48  {
49  aRetval.append(aDiscretePolygon);
50  }
51  else
52  {
53  aRetval = basegfx::utils::solvePolygonOperationOr(aRetval, basegfx::B2DPolyPolygon(aDiscretePolygon));
54  }
55  }
56 
57  return aRetval;
58  }
59 
60  // check if wanted type OverlayType::Transparent or OverlayType::Solid
61  // is possible. If not, fallback to invert mode (classic mode)
63  {
64  if(OverlayType::Invert != aOverlayType)
65  {
67  {
68  // not possible when switched off by user
69  return OverlayType::Invert;
70  }
72  {
73 
74  if(pOut->GetSettings().GetStyleSettings().GetHighContrastMode())
75  {
76  // not possible when in high contrast mode
77  return OverlayType::Invert;
78  }
79 
80  if(!pOut->SupportsOperation(OutDevSupportType::TransparentRect))
81  {
82  // not possible when no fast transparence paint is supported on the system
83  return OverlayType::Invert;
84  }
85  }
86  }
87 
88  return aOverlayType;
89  }
90 
92  {
94  const sal_uInt32 nCount(getRanges().size());
95 
96  if(nCount)
97  {
98  // create range primitives
99  const bool bInvert(OverlayType::Invert == maLastOverlayType);
100  basegfx::BColor aRGBColor(getBaseColor().getBColor());
101  aRetval.resize(nCount);
102 
103  if(bInvert)
104  {
105  // force color to white for invert to get a full invert
106  aRGBColor = basegfx::BColor(1.0, 1.0, 1.0);
107  }
108 
109  for(sal_uInt32 a(0);a < nCount; a++)
110  {
114  basegfx::B2DPolyPolygon(aPolygon),
115  aRGBColor));
116  }
117 
118  if(bInvert)
119  {
120  // embed all in invert primitive
123  std::move(aRetval)));
125  }
127  {
128  // embed all rectangles in transparent paint
129  const double fTransparence(mnLastTransparence / 100.0);
130  const drawinglayer::primitive2d::Primitive2DReference aUnifiedTransparence(
132  std::move(aRetval),
133  fTransparence));
134 
135  if(mbBorder)
136  {
138  const drawinglayer::primitive2d::Primitive2DReference aSelectionOutline(
140  aPolyPolygon,
141  aRGBColor));
142 
143  // add both to result
144  aRetval = drawinglayer::primitive2d::Primitive2DContainer { aUnifiedTransparence, aSelectionOutline };
145  }
146  else
147  {
148  // just add transparent part
149  aRetval = drawinglayer::primitive2d::Primitive2DContainer { aUnifiedTransparence };
150  }
151  }
152  }
153 
154  return aRetval;
155  }
156 
159  const Color& rColor,
160  const std::vector< basegfx::B2DRange >& rRanges,
161  bool bBorder)
162  : OverlayObject(rColor),
163  meOverlayType(eType),
164  maRanges(rRanges),
165  maLastOverlayType(eType),
166  mnLastTransparence(0),
167  mbBorder(bBorder)
168  {
169  // no AA for selection overlays
170  allowAntiAliase(false);
171  }
172 
174  {
175  if(getOverlayManager())
176  {
177  getOverlayManager()->remove(*this);
178  }
179  }
180 
182  {
183  // get current values
184  const OverlayType aNewOverlayType(impCheckPossibleOverlayType(meOverlayType));
185  const sal_uInt16 nNewTransparence(SvtOptionsDrawinglayer::GetTransparentSelectionPercent());
186 
187  if(!getPrimitive2DSequence().empty())
188  {
189  if(aNewOverlayType != maLastOverlayType
190  || nNewTransparence != mnLastTransparence)
191  {
192  // conditions of last local decomposition have changed, delete
193  const_cast< OverlaySelection* >(this)->resetPrimitive2DSequence();
194  }
195  }
196 
197  if(getPrimitive2DSequence().empty())
198  {
199  // remember new values
200  const_cast< OverlaySelection* >(this)->maLastOverlayType = aNewOverlayType;
201  const_cast< OverlaySelection* >(this)->mnLastTransparence = nNewTransparence;
202  }
203 
204  // call base implementation
206  }
207 
208  void OverlaySelection::setRanges(const std::vector< basegfx::B2DRange >& rNew)
209  {
210  if(rNew != maRanges)
211  {
212  maRanges = rNew;
213  objectChange();
214  }
215  }
216 } // end of namespace
217 
218 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
const drawinglayer::primitive2d::Primitive2DContainer & getPrimitive2DSequence() const
B2DPolyPolygon solvePolygonOperationOr(const B2DPolyPolygon &rCandidateA, const B2DPolyPolygon &rCandidateB)
void setRanges(const std::vector< basegfx::B2DRange > &rNew)
OverlayManager * getOverlayManager() const
const std::vector< basegfx::B2DRange > & getRanges() const
static OutputDevice * GetDefaultDevice()
void remove(OverlayObject &rOverlayObject)
int nCount
oslFileHandle & pOut
virtual drawinglayer::primitive2d::Primitive2DContainer createOverlayObjectPrimitive2DSequence() override
DocumentType eType
uno_Any a
B2DPolygon createPolygonFromRect(const B2DRectangle &rRect, double fRadiusX, double fRadiusY)
size
virtual drawinglayer::primitive2d::Primitive2DContainer getOverlayObjectPrimitive2DSequence() const
OverlaySelection(OverlayType eType, const Color &rColor, const std::vector< basegfx::B2DRange > &rRanges, bool bBorder)
void allowAntiAliase(bool bNew)
const Color & getBaseColor() const
css::uno::Reference< css::graphic::XPrimitive2D > Primitive2DReference
std::vector< basegfx::B2DRange > maRanges
static basegfx::B2DPolyPolygon impCombineRangesToPolyPolygon(const std::vector< basegfx::B2DRange > &rRanges)
static OverlayType impCheckPossibleOverlayType(OverlayType aOverlayType)
sal_uInt16 GetTransparentSelectionPercent()
virtual drawinglayer::primitive2d::Primitive2DContainer getOverlayObjectPrimitive2DSequence() const override
override to check conditions for last createOverlayObjectPrimitive2DSequence