include/wx/osx/dataview.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/osx/dataview.h
   3 // Purpose:     wxDataViewCtrl native implementation header for OSX
   4 // Author:
   5 // Id:          $Id$
   6 // Copyright:   (c) 2009
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_DATAVIEWCTRL_OSX_H_
  11 #define _WX_DATAVIEWCTRL_OSX_H_
  12
  13 #ifdef __WXMAC_CLASSIC__
  14 #  error "Native wxDataViewCtrl for classic environment not defined. Please use generic control."
  15 #endif
  16
  17 // --------------------------------------------------------
  18 // Class declarations to mask native types
  19 // --------------------------------------------------------
  20 class wxDataViewColumnNativeData;   // class storing environment dependent data for the native implementation
  21 class wxDataViewWidgetImpl;         // class used as a common interface for carbon and cocoa implementation
  22
  23 // ---------------------------------------------------------
  24 // wxDataViewColumn
  25 // ---------------------------------------------------------
  26
  27 class WXDLLIMPEXP_ADV wxDataViewColumn: public wxDataViewColumnBase
  28 {
  29 public:
  30     // constructors / destructor
  31     wxDataViewColumn(const wxString& title,
  32                      wxDataViewRenderer* renderer,
  33                      unsigned int model_column,
  34                      int width = wxDVC_DEFAULT_WIDTH,
  35                      wxAlignment align = wxALIGN_CENTER,
  36                      int flags = wxDATAVIEW_COL_RESIZABLE);
  37     wxDataViewColumn(const wxBitmap& bitmap,
  38                      wxDataViewRenderer* renderer,
  39                      unsigned int model_column,
  40                      int width = wxDVC_DEFAULT_WIDTH,
  41                      wxAlignment align = wxALIGN_CENTER,
  42                      int flags = wxDATAVIEW_COL_RESIZABLE);
  43     virtual ~wxDataViewColumn();
  44
  45     // implement wxHeaderColumnBase pure virtual methods
  46     virtual wxAlignment GetAlignment() const { return m_alignment; }
  47     virtual int GetFlags() const { return m_flags; }
  48     virtual int GetMaxWidth() const { return m_maxWidth; }
  49     virtual int GetMinWidth() const { return m_minWidth; }
  50     virtual wxString GetTitle() const { return m_title; }
  51     virtual int GetWidth() const;
  52     virtual bool IsSortOrderAscending() const { return m_ascending; }
  53     virtual bool IsSortKey() const;
  54     virtual bool IsHidden() const;
  55
  56     virtual void SetAlignment  (wxAlignment align);
  57     virtual void SetBitmap     (wxBitmap const& bitmap);
  58     virtual void SetFlags      (int flags) { SetIndividualFlags(flags); }
  59     virtual void SetHidden     (bool hidden);
  60     virtual void SetMaxWidth   (int maxWidth);
  61     virtual void SetMinWidth   (int minWidth);
  62     virtual void SetReorderable(bool reorderable);
  63     virtual void SetResizeable (bool resizeable);
  64     virtual void SetSortable   (bool sortable);
  65     virtual void SetSortOrder  (bool ascending);
  66     virtual void SetTitle      (wxString const& title);
  67     virtual void SetWidth      (int  width);
  68     virtual void SetAsSortKey  (bool sort = true);
  69
  70    // implementation only
  71     wxDataViewColumnNativeData* GetNativeData() const
  72     {
  73       return m_NativeDataPtr;
  74     }
  75
  76     void SetNativeData(wxDataViewColumnNativeData* newNativeDataPtr); // class takes ownership of pointer
  77     int GetWidthVariable() const
  78     {
  79         return m_width;
  80     }
  81     void SetWidthVariable(int NewWidth)
  82     {
  83         m_width = NewWidth;
  84     }
  85     void SetSortOrderVariable(bool NewOrder)
  86     {
  87         m_ascending = NewOrder;
  88     }
  89
  90 private:
  91     // common part of all ctors
  92     void InitCommon(int width, wxAlignment align, int flags)
  93     {
  94         m_ascending = true;
  95         m_flags = flags & ~wxDATAVIEW_COL_HIDDEN; // TODO
  96         m_maxWidth = 30000;
  97         m_minWidth = 0;
  98         m_width = width >= 0 ? width : wxDVC_DEFAULT_WIDTH;
  99         m_alignment = align;
 100     }
 101
 102     bool m_ascending; // sorting order
 103
 104     int m_flags;    // flags for the column
 105     int m_maxWidth; // maximum width for the column
 106     int m_minWidth; // minimum width for the column
 107     int m_width;    // column width
 108
 109     wxAlignment m_alignment; // column header alignment
 110
 111     wxDataViewColumnNativeData* m_NativeDataPtr; // storing environment dependent data for the native implementation
 112
 113     wxString m_title; // column title
 114 };
 115
 116 //
 117 // type definitions related to wxDataViewColumn
 118 //
 119 WX_DEFINE_ARRAY(wxDataViewColumn*,wxDataViewColumnPtrArrayType);
 120
 121 // ---------------------------------------------------------
 122 // wxDataViewCtrl
 123 // ---------------------------------------------------------
 124 class WXDLLIMPEXP_ADV wxDataViewCtrl: public wxDataViewCtrlBase
 125 {
 126 public:
 127  // Constructors / destructor:
 128   wxDataViewCtrl()
 129   {
 130     Init();
 131   }
 132   wxDataViewCtrl(wxWindow *parent,
 133                  wxWindowID winid,
 134                  const wxPoint& pos = wxDefaultPosition,
 135                  const wxSize& size = wxDefaultSize,
 136                  long style = 0,
 137                  const wxValidator& validator = wxDefaultValidator,
 138                  const wxString& name = wxDataViewCtrlNameStr )
 139   {
 140     Init();
 141     Create(parent, winid, pos, size, style, validator, name);
 142   }
 143
 144   ~wxDataViewCtrl();
 145
 146   bool Create(wxWindow *parent,
 147               wxWindowID winid,
 148               const wxPoint& pos = wxDefaultPosition,
 149               const wxSize& size = wxDefaultSize,
 150               long style = 0,
 151               const wxValidator& validator = wxDefaultValidator,
 152               const wxString& name = wxDataViewCtrlNameStr);
 153
 154   virtual wxControl* GetMainWindow() // not used for the native implementation
 155   {
 156     return this;
 157   }
 158
 159  // inherited methods from wxDataViewCtrlBase:
 160   virtual bool AssociateModel(wxDataViewModel* model);
 161
 162   virtual bool              AppendColumn     (wxDataViewColumn* columnPtr);
 163   virtual bool              ClearColumns     ();
 164   virtual bool              DeleteColumn     (wxDataViewColumn* columnPtr);
 165   virtual wxDataViewColumn* GetColumn        (unsigned int pos) const;
 166   virtual unsigned int      GetColumnCount   () const;
 167   virtual int               GetColumnPosition(const wxDataViewColumn* columnPtr) const;
 168   virtual wxDataViewColumn* GetSortingColumn () const;
 169   virtual bool              InsertColumn     (unsigned int pos, wxDataViewColumn *col);
 170   virtual bool              PrependColumn    (wxDataViewColumn* columnPtr);
 171
 172   virtual void Collapse( const wxDataViewItem& item);
 173   virtual void EnsureVisible(const wxDataViewItem& item, const wxDataViewColumn* columnPtr=NULL);
 174   virtual void Expand(const wxDataViewItem& item);
 175   virtual bool IsExpanded(const wxDataViewItem & item) const;
 176
 177   virtual unsigned int GetCount() const;
 178   virtual wxRect GetItemRect(const wxDataViewItem& item, const wxDataViewColumn* columnPtr) const;
 179   virtual wxDataViewItem GetSelection() const;
 180   virtual int GetSelections(wxDataViewItemArray& sel) const;
 181
 182   virtual void HitTest(const wxPoint& point, wxDataViewItem& item, wxDataViewColumn*& columnPtr) const;
 183
 184   virtual bool IsSelected(const wxDataViewItem& item) const;
 185
 186   virtual void SelectAll();
 187   virtual void Select(const wxDataViewItem& item);
 188   virtual void SetSelections(const wxDataViewItemArray& sel);
 189
 190   virtual void Unselect(const wxDataViewItem& item);
 191   virtual void UnselectAll();
 192
 193 //
 194 // implementation
 195 //
 196  // returns a pointer to the native implementation
 197   wxDataViewWidgetImpl* GetDataViewPeer() const;
 198
 199  // adds all children of the passed parent to the control; if 'parentItem' is invalid the root(s) is/are added:
 200   void AddChildren(wxDataViewItem const& parentItem);
 201
 202  // finishes editing of custom items; if no custom item is currently edited the method does nothing
 203   void FinishCustomItemEditing();
 204
 205  // returns the n-th pointer to a column;
 206  // this method is different from GetColumn(unsigned int pos) because here 'n' is not a position in the control but the n-th
 207  // position in the internal list/array of column pointers
 208   wxDataViewColumn* GetColumnPtr(size_t n) const
 209   {
 210     return m_ColumnPtrs[n];
 211   }
 212  // returns the current being rendered item of the customized renderer (this item is only valid during editing)
 213   wxDataViewItem const& GetCustomRendererItem() const
 214   {
 215     return m_CustomRendererItem;
 216   }
 217  // returns a pointer to a customized renderer (this pointer is only valid during editing)
 218   wxDataViewCustomRenderer* GetCustomRendererPtr() const
 219   {
 220     return m_CustomRendererPtr;
 221   }
 222
 223  // checks if currently a delete process is running
 224   bool IsDeleting() const
 225   {
 226     return m_Deleting;
 227   }
 228
 229  // with CG, we need to get the context from an kEventControlDraw event
 230  // unfortunately, the DataBrowser callbacks don't provide the context
 231  // and we need it, so we need to set/remove it before and after draw
 232  // events so we can access it in the callbacks.
 233   void MacSetDrawingContext(void* context)
 234   {
 235     m_cgContext = context;
 236   }
 237   void* MacGetDrawingContext() const
 238   {
 239     return m_cgContext;
 240   }
 241
 242  // sets the currently being edited item of the custom renderer
 243   void SetCustomRendererItem(wxDataViewItem const& NewItem)
 244   {
 245     m_CustomRendererItem = NewItem;
 246   }
 247  // sets the custom renderer
 248   void SetCustomRendererPtr(wxDataViewCustomRenderer* NewCustomRendererPtr)
 249   {
 250     m_CustomRendererPtr = NewCustomRendererPtr;
 251   }
 252  // sets the flag indicating a deletion process:
 253   void SetDeleting(bool deleting)
 254   {
 255     m_Deleting = deleting;
 256   }
 257
 258   virtual wxVisualAttributes GetDefaultAttributes() const
 259   {
 260       return GetClassDefaultAttributes(GetWindowVariant());
 261   }
 262
 263   static wxVisualAttributes
 264   GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 265
 266 protected:
 267  // inherited methods from wxDataViewCtrlBase
 268   virtual void DoSetExpanderColumn();
 269   virtual void DoSetIndent();
 270
 271   virtual wxSize DoGetBestSize() const;
 272
 273  // event handling
 274   void OnSize(wxSizeEvent &event);
 275   void OnMouse(wxMouseEvent &event);
 276
 277 private:
 278  // initializing of local variables:
 279   void Init();
 280
 281   virtual wxDataViewItem DoGetCurrentItem() const;
 282   virtual void DoSetCurrentItem(const wxDataViewItem& item);
 283
 284  //
 285  // variables
 286  //
 287   bool m_Deleting; // flag indicating if a delete process is running; this flag is necessary because the notifier indicating an item deletion in the model may be called
 288                    // after the actual deletion of the item; then, native callback functions/delegates may try to update data of variables that are already deleted;
 289                    // if this flag is set all native variable update requests will be ignored
 290
 291   void* m_cgContext; // pointer to core graphics context
 292
 293   wxDataViewCustomRenderer* m_CustomRendererPtr; // pointer to a valid custom renderer while editing; this class does NOT own the pointer
 294
 295   wxDataViewItem m_CustomRendererItem; // currently edited item by the customrenderer; it is invalid while not editing a custom item
 296
 297   wxDataViewColumnPtrArrayType m_ColumnPtrs; // all column pointers are stored in an array
 298
 299  // wxWidget internal stuff:
 300   DECLARE_DYNAMIC_CLASS(wxDataViewCtrl)
 301   DECLARE_NO_COPY_CLASS(wxDataViewCtrl)
 302   DECLARE_EVENT_TABLE()
 303 };
 304
 305 #endif // _WX_DATAVIEWCTRL_OSX_H_
 306