src/kits/interface/ViewLayoutItem.h

   1 /*
   2  * Copyright 2006-2010, Haiku Inc.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _VIEW_LAYOUT_ITEM_H
   6 #define _VIEW_LAYOUT_ITEM_H
   7
   8 #include <LayoutItem.h>
   9
  10
  11 class BViewLayoutItem : public BLayoutItem {
  12 public:
  13                                                                 BViewLayoutItem(BView* view);
  14                                                                 BViewLayoutItem(BMessage* from);
  15         virtual                                         ~BViewLayoutItem();
  16
  17         virtual BSize                           MinSize();
  18         virtual BSize                           MaxSize();
  19         virtual BSize                           PreferredSize();
  20         virtual BAlignment                      Alignment();
  21
  22         virtual void                            SetExplicitMinSize(BSize size);
  23         virtual void                            SetExplicitMaxSize(BSize size);
  24         virtual void                            SetExplicitPreferredSize(BSize size);
  25         virtual void                            SetExplicitAlignment(BAlignment alignment);
  26
  27         virtual bool                            IsVisible();
  28         virtual void                            SetVisible(bool visible);
  29
  30         virtual BRect                           Frame();
  31         virtual void                            SetFrame(BRect frame);
  32
  33         virtual bool                            HasHeightForWidth();
  34         virtual void                            GetHeightForWidth(float width, float* min,
  35                                                                         float* max, float* preferred);
  36
  37         virtual BView*                          View();
  38
  39         virtual void                            Relayout(bool immediate = false);
  40
  41         virtual status_t                        Archive(BMessage* into, bool deep = true) const;
  42         virtual status_t                        AllArchived(BMessage* into) const;
  43         virtual status_t                        AllUnarchived(const BMessage* from);
  44         static  BArchivable*            Instantiate(BMessage* from);
  45
  46 protected:
  47         virtual void                            LayoutInvalidated(bool children);
  48         virtual void                            AncestorVisibilityChanged(bool shown);
  49
  50 private:
  51                         BView*                          fView;
  52                         int32                           fAncestorsVisible;
  53 };
  54
  55 #endif  //      _VIEW_LAYOUT_ITEM_H