headers/libs/alm/Row.h

   1 /*
   2  * Copyright 2006 - 2010, Haiku, Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef ROW_H
   6 #define ROW_H
   7
   8
   9 #include <ObjectList.h>
  10 #include <Referenceable.h>
  11
  12
  13 namespace LinearProgramming {
  14         class Constraint;
  15         class LinearSpec;
  16 };
  17
  18
  19 namespace BPrivate {
  20         class SharedSolver;
  21 };
  22
  23
  24 namespace BALM {
  25
  26
  27 class Area;
  28 class BALMLayout;
  29 class RowColumnManager;
  30 class XTab;
  31 class YTab;
  32
  33
  34 /**
  35  * Represents a row defined by two y-tabs.
  36  */
  37 class Row {
  38 public:
  39                                                                 ~Row();
  40
  41                         YTab*                           Top() const;
  42                         YTab*                           Bottom() const;
  43
  44 private:
  45         friend class BALMLayout;
  46         friend class BALM::RowColumnManager;
  47         friend class BPrivate::SharedSolver;
  48
  49                                                                 Row(LinearProgramming::LinearSpec* ls,
  50                                                                                 YTab* top, YTab* bottom);
  51
  52                         BReference<YTab>        fTop;
  53                         BReference<YTab>        fBottom;
  54
  55                         LinearProgramming::LinearSpec* fLS;
  56                         LinearProgramming::Constraint* fPrefSizeConstraint;
  57                                 // managed by RowColumnManager
  58
  59                         BObjectList<Area>       fAreas;
  60 };
  61
  62 }       // namespace BALM
  63
  64 using BALM::Row;
  65
  66 #endif  // ROW_H