src/apps/webpositive/tabview/TabContainerView.h

   1 /*
   2  * Copyright (C) 2010 Stephan Aßmus <superstippi@gmx.de>
   3  *
   4  * All rights reserved. Distributed under the terms of the MIT License.
   5  */
   6 #ifndef TAB_CONTAINER_VIEW_H
   7 #define TAB_CONTAINER_VIEW_H
   8
   9 #include <GroupView.h>
  10
  11
  12 class TabView;
  13
  14
  15 class TabContainerView : public BGroupView {
  16 public:
  17         class Controller {
  18         public:
  19                 virtual void                    TabSelected(int32 tabIndex) = 0;
  20                 virtual bool                    HasFrames() = 0;
  21                 virtual TabView*                CreateTabView() = 0;
  22                 virtual void                    DoubleClickOutsideTabs() = 0;
  23                 virtual void                    UpdateTabScrollability(bool canScrollLeft,
  24                                                                         bool canScrollRight) = 0;
  25                 virtual void                    SetToolTip(const BString& text) = 0;
  26         };
  27
  28 public:
  29                                                                 TabContainerView(Controller* controller);
  30         virtual                                         ~TabContainerView();
  31
  32         virtual BSize                           MinSize();
  33
  34         virtual void                            MessageReceived(BMessage*);
  35
  36         virtual void                            Draw(BRect updateRect);
  37
  38         virtual void                            MouseDown(BPoint where);
  39         virtual void                            MouseUp(BPoint where);
  40         virtual void                            MouseMoved(BPoint where, uint32 transit,
  41                                                                         const BMessage* dragMessage);
  42
  43         virtual void                            DoLayout();
  44
  45                         void                            AddTab(const char* label, int32 index = -1);
  46                         void                            AddTab(TabView* tab, int32 index = -1);
  47                         TabView*                        RemoveTab(int32 index);
  48                         TabView*                        TabAt(int32 index) const;
  49
  50                         int32                           IndexOf(TabView* tab) const;
  51
  52                         void                            SelectTab(int32 tabIndex);
  53                         void                            SelectTab(TabView* tab);
  54
  55                         void                            SetTabLabel(int32 tabIndex, const char* label);
  56
  57                         void                            SetFirstVisibleTabIndex(int32 index);
  58                         int32                           FirstVisibleTabIndex() const;
  59                         int32                           MaxFirstVisibleTabIndex() const;
  60
  61                         bool                            CanScrollLeft() const;
  62                         bool                            CanScrollRight() const;
  63
  64 private:
  65                         TabView*                        _TabAt(const BPoint& where) const;
  66                         void                            _MouseMoved(BPoint where, uint32 transit,
  67                                                                         const BMessage* dragMessage);
  68                         void                            _ValidateTabVisibility();
  69                         void                            _UpdateTabVisibility();
  70                         float                           _AvailableWidthForTabs() const;
  71                         void                            _SendFakeMouseMoved();
  72
  73 private:
  74                         TabView*                        fLastMouseEventTab;
  75                         bool                            fMouseDown;
  76                         uint32                          fClickCount;
  77                         TabView*                        fSelectedTab;
  78                         Controller*                     fController;
  79                         int32                           fFirstVisibleTabIndex;
  80 };
  81
  82 #endif // TAB_CONTAINER_VIEW_H