include/wx/bookctrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/bookctrl.h
   3 // Purpose:     wxBookCtrlBase: common base class for wxList/Tree/Notebook
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     19.08.03
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_BOOKCTRL_H_
  13 #define _WX_BOOKCTRL_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_BOOKCTRL
  22
  23 #include "wx/control.h"
  24 #include "wx/dynarray.h"
  25
  26 WX_DEFINE_EXPORTED_ARRAY_PTR(wxWindow *, wxArrayPages);
  27
  28 class WXDLLEXPORT wxImageList;
  29
  30 // ----------------------------------------------------------------------------
  31 // wxBookCtrlBase
  32 // ----------------------------------------------------------------------------
  33
  34 class WXDLLEXPORT wxBookCtrlBase : public wxControl
  35 {
  36 public:
  37     // construction
  38     // ------------
  39
  40     wxBookCtrlBase()
  41     {
  42         Init();
  43     }
  44
  45     wxBookCtrlBase(wxWindow *parent,
  46                    wxWindowID winid,
  47                    const wxPoint& pos = wxDefaultPosition,
  48                    const wxSize& size = wxDefaultSize,
  49                    long style = 0,
  50                    const wxString& name = wxEmptyString)
  51     {
  52         Init();
  53
  54         (void)Create(parent, winid, pos, size, style, name);
  55     }
  56
  57     // quasi ctor
  58     bool Create(wxWindow *parent,
  59                 wxWindowID winid,
  60                 const wxPoint& pos = wxDefaultPosition,
  61                 const wxSize& size = wxDefaultSize,
  62                 long style = 0,
  63                 const wxString& name = wxEmptyString);
  64
  65     // dtor
  66     virtual ~wxBookCtrlBase();
  67
  68
  69     // accessors
  70     // ---------
  71
  72     // get number of pages in the dialog
  73     virtual size_t GetPageCount() const { return m_pages.size(); }
  74
  75     // get the panel which represents the given page
  76     wxWindow *GetPage(size_t n) { return m_pages[n]; }
  77     wxWindow *GetPage(size_t n) const { return m_pages[n]; }
  78
  79     // get the current page or NULL if none
  80     wxWindow *GetCurrentPage() const
  81     {
  82         const int n = GetSelection();
  83         return n == wxNOT_FOUND ? NULL : GetPage(n);
  84     }
  85
  86     // get the currently selected page or wxNOT_FOUND if none
  87     virtual int GetSelection() const = 0;
  88
  89     // set/get the title of a page
  90     virtual bool SetPageText(size_t n, const wxString& strText) = 0;
  91     virtual wxString GetPageText(size_t n) const = 0;
  92
  93
  94     // image list stuff: each page may have an image associated with it (all
  95     // images belong to the same image list)
  96     // ---------------------------------------------------------------------
  97
  98     // sets the image list to use, it is *not* deleted by the control
  99     virtual void SetImageList(wxImageList *imageList);
 100
 101     // as SetImageList() but we will delete the image list ourselves
 102     void AssignImageList(wxImageList *imageList);
 103
 104     // get pointer (may be NULL) to the associated image list
 105     wxImageList* GetImageList() const { return m_imageList; }
 106
 107     // sets/returns item's image index in the current image list
 108     virtual int GetPageImage(size_t n) const = 0;
 109     virtual bool SetPageImage(size_t n, int imageId) = 0;
 110
 111
 112     // geometry
 113     // --------
 114
 115     // resize the notebook so that all pages will have the specified size
 116     virtual void SetPageSize(const wxSize& size);
 117
 118     // calculate the size of the control from the size of its page
 119     virtual wxSize CalcSizeFromPage(const wxSize& sizePage) const = 0;
 120
 121     // get/set size of area between book control area and page area
 122     inline unsigned int GetInternalBorder() const
 123     {
 124         return m_internalBorder;
 125     }
 126     void SetInternalBorder(unsigned int internalBorder)
 127     {
 128         m_internalBorder = internalBorder;
 129     }
 130
 131     // Sets/gets the margin around the controller
 132     void SetControlMargin(int margin) { m_controlMargin = margin; }
 133     int GetControlMargin() const { return m_controlMargin; }
 134
 135     // returns true if we have wxCHB_TOP or wxCHB_BOTTOM style
 136     bool IsVertical() const { return HasFlag(wxBK_BOTTOM | wxBK_TOP); }
 137
 138     // set/get option to shrink to fit current page
 139     void SetFitToCurrentPage(bool fit) { m_fitToCurrentPage = fit; }
 140     bool GetFitToCurrentPage() const { return m_fitToCurrentPage; }
 141
 142     // returns the sizer containing the control, if any
 143     wxSizer* GetControlSizer() const { return m_controlSizer; }
 144
 145     // operations
 146     // ----------
 147
 148     // remove one page from the control and delete it
 149     virtual bool DeletePage(size_t n);
 150
 151     // remove one page from the notebook, without deleting it
 152     virtual bool RemovePage(size_t n)
 153     {
 154         InvalidateBestSize();
 155         return DoRemovePage(n) != NULL;
 156     }
 157
 158     // remove all pages and delete them
 159     virtual bool DeleteAllPages()
 160     {
 161         InvalidateBestSize();
 162         WX_CLEAR_ARRAY(m_pages);
 163         return true;
 164     }
 165
 166     // adds a new page to the control
 167     virtual bool AddPage(wxWindow *page,
 168                          const wxString& text,
 169                          bool bSelect = false,
 170                          int imageId = -1)
 171     {
 172         InvalidateBestSize();
 173         return InsertPage(GetPageCount(), page, text, bSelect, imageId);
 174     }
 175
 176     // the same as AddPage(), but adds the page at the specified position
 177     virtual bool InsertPage(size_t n,
 178                             wxWindow *page,
 179                             const wxString& text,
 180                             bool bSelect = false,
 181                             int imageId = -1) = 0;
 182
 183     // set the currently selected page, return the index of the previously
 184     // selected one (or -1 on error)
 185     //
 186     // NB: this function will generate PAGE_CHANGING/ED events
 187     virtual int SetSelection(size_t n) = 0;
 188
 189
 190     // cycle thru the pages
 191     void AdvanceSelection(bool forward = true)
 192     {
 193         int nPage = GetNextPage(forward);
 194         if ( nPage != -1 )
 195         {
 196             // cast is safe because of the check above
 197             SetSelection((size_t)nPage);
 198         }
 199     }
 200
 201 protected:
 202     // Should we accept NULL page pointers in Add/InsertPage()?
 203     //
 204     // Default is no but derived classes may override it if they can treat NULL
 205     // pages in some sensible way (e.g. wxTreebook overrides this to allow
 206     // having nodes without any associated page)
 207     virtual bool AllowNullPage() const { return false; }
 208
 209     // remove the page and return a pointer to it
 210     virtual wxWindow *DoRemovePage(size_t page) = 0;
 211
 212     // our best size is the size which fits all our pages
 213     virtual wxSize DoGetBestSize() const;
 214
 215     // helper: get the next page wrapping if we reached the end
 216     int GetNextPage(bool forward) const;
 217
 218     // Always rely on GetBestSize, which will look at all the pages
 219     virtual void SetInitialBestSize(const wxSize& WXUNUSED(size)) { }
 220
 221     // Lay out controls
 222     void DoSize();
 223
 224     // the array of all pages of this control
 225     wxArrayPages m_pages;
 226
 227     // the associated image list or NULL
 228     wxImageList *m_imageList;
 229
 230     // true if we must delete m_imageList
 231     bool m_ownsImageList;
 232
 233     // get the page area
 234     wxRect GetPageRect() const;
 235
 236     // event handlers
 237     virtual wxSize GetControllerSize() const;
 238     void OnSize(wxSizeEvent& event);
 239
 240     // controller buddy if available, NULL otherwise (usually for native book controls like wxNotebook)
 241     wxControl *m_bookctrl;
 242
 243     // Whether to shrink to fit current page
 244     bool m_fitToCurrentPage;
 245
 246     // the sizer containing the choice control
 247     wxSizer*    m_controlSizer;
 248
 249     // the margin around the choice control
 250     int         m_controlMargin;
 251
 252 private:
 253
 254     // common part of all ctors
 255     void Init();
 256
 257     // internal border
 258     unsigned int m_internalBorder;
 259
 260     DECLARE_ABSTRACT_CLASS(wxBookCtrlBase)
 261     DECLARE_NO_COPY_CLASS(wxBookCtrlBase)
 262     DECLARE_EVENT_TABLE()
 263 };
 264
 265 // ----------------------------------------------------------------------------
 266 // wxBookCtrlBaseEvent: page changing events generated by derived classes
 267 // ----------------------------------------------------------------------------
 268
 269 class WXDLLEXPORT wxBookCtrlBaseEvent : public wxNotifyEvent
 270 {
 271 public:
 272     wxBookCtrlBaseEvent(wxEventType commandType = wxEVT_NULL, int winid = 0,
 273                         int nSel = -1, int nOldSel = -1)
 274         : wxNotifyEvent(commandType, winid)
 275     {
 276         m_nSel = nSel;
 277         m_nOldSel = nOldSel;
 278     }
 279
 280     wxBookCtrlBaseEvent(const wxBookCtrlBaseEvent& event)
 281         : wxNotifyEvent(event)
 282     {
 283         m_nSel = event.m_nSel;
 284         m_nOldSel = event.m_nOldSel;
 285     }
 286
 287     // accessors
 288         // the currently selected page (-1 if none)
 289     int GetSelection() const { return m_nSel; }
 290     void SetSelection(int nSel) { m_nSel = nSel; }
 291         // the page that was selected before the change (-1 if none)
 292     int GetOldSelection() const { return m_nOldSel; }
 293     void SetOldSelection(int nOldSel) { m_nOldSel = nOldSel; }
 294
 295 private:
 296     int m_nSel,     // currently selected page
 297         m_nOldSel;  // previously selected page
 298 };
 299
 300 // make a default book control for given platform
 301 #if wxUSE_NOTEBOOK
 302     // dedicated to majority of desktops
 303     #include "wx/notebook.h"
 304     #define wxBookCtrl                             wxNotebook
 305     #define wxBookCtrlEvent                        wxNotebookEvent
 306     #define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGED    wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED
 307     #define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGING   wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING
 308     #define EVT_BOOKCTRL_PAGE_CHANGED(id, fn)      EVT_NOTEBOOK_PAGE_CHANGED(id, fn)
 309     #define EVT_BOOKCTRL_PAGE_CHANGING(id, fn)     EVT_NOTEBOOK_PAGE_CHANGING(id, fn)
 310 #else
 311     // dedicated to Smartphones
 312     #include "wx/choicebk.h"
 313     #define wxBookCtrl                             wxChoicebook
 314     #define wxBookCtrlEvent                        wxChoicebookEvent
 315     #define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGED    wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED
 316     #define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGING   wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING
 317     #define EVT_BOOKCTRL_PAGE_CHANGED(id, fn)      EVT_CHOICEBOOK_PAGE_CHANGED(id, fn)
 318     #define EVT_BOOKCTRL_PAGE_CHANGING(id, fn)     EVT_CHOICEBOOK_PAGE_CHANGING(id, fn)
 319 #endif
 320
 321 #if WXWIN_COMPATIBILITY_2_6
 322     #define wxBC_TOP                               wxBK_TOP
 323     #define wxBC_BOTTOM                            wxBK_BOTTOM
 324     #define wxBC_LEFT                              wxBK_LEFT
 325     #define wxBC_RIGHT                             wxBK_RIGHT
 326     #define wxBC_DEFAULT                           wxBK_DEFAULT
 327 #endif
 328
 329 #endif // wxUSE_BOOKCTRL
 330
 331 #endif // _WX_BOOKCTRL_H_