headers/os/interface/CardLayout.h

   1 /*
   2  * Copyright 2006-2010, Haiku, Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _CARD_LAYOUT_H
   6 #define _CARD_LAYOUT_H
   7
   8 #include <AbstractLayout.h>
   9
  10
  11 class BCardLayout : public BAbstractLayout {
  12 public:
  13                                                                 BCardLayout();
  14                                                                 BCardLayout(BMessage* from);
  15         virtual                                         ~BCardLayout();
  16
  17                         BLayoutItem*            VisibleItem() const;
  18                         int32                           VisibleIndex() const;
  19                         void                            SetVisibleItem(int32 index);
  20                         void                            SetVisibleItem(BLayoutItem* item);
  21
  22         virtual BSize                           BaseMinSize();
  23         virtual BSize                           BaseMaxSize();
  24         virtual BSize                           BasePreferredSize();
  25         virtual BAlignment                      BaseAlignment();
  26
  27         virtual bool                            HasHeightForWidth();
  28         virtual void                            GetHeightForWidth(float width, float* min,
  29                                                                         float* max, float* preferred);
  30
  31         virtual status_t                        Archive(BMessage* into, bool deep = true) const;
  32         static  BArchivable*            Instantiate(BMessage* from);
  33
  34         virtual status_t                        Perform(perform_code d, void* arg);
  35
  36 protected:
  37         virtual status_t                        AllArchived(BMessage* archive) const;
  38         virtual status_t                        AllUnarchived(const BMessage* from);
  39
  40         virtual status_t                        ItemArchived(BMessage* into, BLayoutItem* item,
  41                                                                         int32 index) const;
  42         virtual status_t                        ItemUnarchived(const BMessage* from,
  43                                                                         BLayoutItem* item, int32 index);
  44
  45         virtual void                            LayoutInvalidated(bool children = false);
  46         virtual void                            DoLayout();
  47         virtual bool                            ItemAdded(BLayoutItem* item, int32 atIndex);
  48         virtual void                            ItemRemoved(BLayoutItem* item, int32 fromIndex);
  49
  50 private:
  51
  52                         void                            _ValidateMinMax();
  53
  54         // FBC padding
  55         virtual void                            _ReservedCardLayout1();
  56         virtual void                            _ReservedCardLayout2();
  57         virtual void                            _ReservedCardLayout3();
  58         virtual void                            _ReservedCardLayout4();
  59         virtual void                            _ReservedCardLayout5();
  60         virtual void                            _ReservedCardLayout6();
  61         virtual void                            _ReservedCardLayout7();
  62         virtual void                            _ReservedCardLayout8();
  63         virtual void                            _ReservedCardLayout9();
  64         virtual void                            _ReservedCardLayout10();
  65
  66         // forbidden methods
  67                                                                 BCardLayout(const BCardLayout&);
  68                         void                            operator =(const BCardLayout&);
  69
  70                         BSize                           fMin;
  71                         BSize                           fMax;
  72                         BSize                           fPreferred;
  73                         BLayoutItem*            fVisibleItem;
  74                         bool                            fMinMaxValid;
  75
  76                         uint32                          _reserved[5];
  77 };
  78
  79 #endif  // _CARD_LAYOUT_H