LibreOffice Module vcl (master)  1
ControlCacheKey.hxx
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19 
20 #ifndef INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
21 #define INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
22 
23 #include <tools/gen.hxx>
24 #include <vcl/salnativewidgets.hxx>
25 #include <boost/functional/hash.hpp>
26 
28 {
29 public:
34 
35  ControlCacheKey(ControlType nType, ControlPart nPart, ControlState nState, const Size& rSize)
36  : mnType(nType)
37  , mnPart(nPart)
38  , mnState(nState)
39  , maSize(rSize)
40  {}
41 
42  bool operator==(ControlCacheKey const& aOther) const
43  {
44  return mnType == aOther.mnType
45  && mnPart == aOther.mnPart
46  && mnState == aOther.mnState
47  && maSize.Width() == aOther.maSize.Width()
48  && maSize.Height() == aOther.maSize.Height();
49  }
50 
51  bool canCacheControl() const
52  {
53  switch(mnType)
54  {
60  // FIXME: these guys have complex state hidden in ImplControlValue
61  // structs which affects rendering, needs to be a and needs to be
62  // part of the key to our cache.
66  return false;
67 
69  if (mnPart == ControlPart::Entire)
70  return false;
71  break;
72 
73  default:
74  break;
75  }
76  return true;
77  }
78 };
79 
81 {
82  std::size_t operator()(ControlCacheKey const& aCache) const
83  {
84  std::size_t seed = 0;
85  boost::hash_combine(seed, aCache.mnType);
86  boost::hash_combine(seed, aCache.mnPart);
87  boost::hash_combine(seed, aCache.mnState);
88  boost::hash_combine(seed, aCache.maSize.Width());
89  boost::hash_combine(seed, aCache.maSize.Height());
90  return seed;
91  }
92 };
93 
94 #endif // INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
long Width() const
long Height() const
ControlType mnType
ControlCacheKey(ControlType nType, ControlPart nPart, ControlState nState, const Size &rSize)
bool canCacheControl() const
ControlPart mnPart
ControlState mnState
std::size_t operator()(ControlCacheKey const &aCache) const
ControlType
These types are all based on the supported variants vcl/salnativewidgets.hxx and must be kept in-sync...
bool operator==(ControlCacheKey const &aOther) const