src/common/bookctrl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/bookctrl.cpp
   3 // Purpose:     wxBookCtrlBase implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     19.08.03
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_BOOKCTRL
  28
  29 #include "wx/imaglist.h"
  30
  31 #include "wx/bookctrl.h"
  32
  33 // ============================================================================
  34 // implementation
  35 // ============================================================================
  36
  37 // ----------------------------------------------------------------------------
  38 // event table
  39 // ----------------------------------------------------------------------------
  40
  41 IMPLEMENT_ABSTRACT_CLASS(wxBookCtrlBase, wxControl)
  42
  43 BEGIN_EVENT_TABLE(wxBookCtrlBase, wxControl)
  44     EVT_SIZE(wxBookCtrlBase::OnSize)
  45 END_EVENT_TABLE()
  46
  47 // ----------------------------------------------------------------------------
  48 // constructors and destructors
  49 // ----------------------------------------------------------------------------
  50
  51 void wxBookCtrlBase::Init()
  52 {
  53     m_bookctrl = NULL;
  54     m_imageList = NULL;
  55     m_ownsImageList = false;
  56     m_shrinkToFit = false;
  57
  58 #if defined(__WXWINCE__)
  59     m_internalBorder = 1;
  60 #else
  61     m_internalBorder = 5;
  62 #endif
  63 }
  64
  65 bool
  66 wxBookCtrlBase::Create(wxWindow *parent,
  67                        wxWindowID id,
  68                        const wxPoint& pos,
  69                        const wxSize& size,
  70                        long style,
  71                        const wxString& name)
  72 {
  73     return wxControl::Create
  74                      (
  75                         parent,
  76                         id,
  77                         pos,
  78                         size,
  79                         style,
  80                         wxDefaultValidator,
  81                         name
  82                      );
  83 }
  84
  85 wxBookCtrlBase::~wxBookCtrlBase()
  86 {
  87     if ( m_ownsImageList )
  88     {
  89         // may be NULL, ok
  90         delete m_imageList;
  91     }
  92 }
  93
  94 // ----------------------------------------------------------------------------
  95 // image list
  96 // ----------------------------------------------------------------------------
  97
  98 void wxBookCtrlBase::SetImageList(wxImageList *imageList)
  99 {
 100     if ( m_ownsImageList )
 101     {
 102         // may be NULL, ok
 103         delete m_imageList;
 104
 105         m_ownsImageList = false;
 106     }
 107
 108     m_imageList = imageList;
 109 }
 110
 111 void wxBookCtrlBase::AssignImageList(wxImageList* imageList)
 112 {
 113     SetImageList(imageList);
 114
 115     m_ownsImageList = true;
 116 }
 117
 118 // ----------------------------------------------------------------------------
 119 // geometry
 120 // ----------------------------------------------------------------------------
 121
 122 void wxBookCtrlBase::SetPageSize(const wxSize& size)
 123 {
 124     SetClientSize(CalcSizeFromPage(size));
 125 }
 126
 127 wxSize wxBookCtrlBase::DoGetBestSize() const
 128 {
 129     wxSize bestSize;
 130
 131     // iterate over all pages, get the largest width and height
 132     const size_t nCount = m_pages.size();
 133     for ( size_t nPage = 0; nPage < nCount; nPage++ )
 134     {
 135         const wxWindow * const pPage = m_pages[nPage];
 136         if( pPage )
 137         {
 138             wxSize childBestSize(pPage->GetBestSize());
 139
 140             if ( childBestSize.x > bestSize.x )
 141                 bestSize.x = childBestSize.x;
 142
 143             if ( childBestSize.y > bestSize.y )
 144                 bestSize.y = childBestSize.y;
 145         }
 146     }
 147
 148     if (m_shrinkToFit && GetCurrentPage())
 149         bestSize = GetCurrentPage()->GetBestSize();
 150
 151     // convert display area to window area, adding the size necessary for the
 152     // tabs
 153     wxSize best = CalcSizeFromPage(bestSize);
 154     CacheBestSize(best);
 155     return best;
 156 }
 157
 158 // ----------------------------------------------------------------------------
 159 // pages management
 160 // ----------------------------------------------------------------------------
 161
 162 bool
 163 wxBookCtrlBase::InsertPage(size_t nPage,
 164                            wxWindow *page,
 165                            const wxString& WXUNUSED(text),
 166                            bool WXUNUSED(bSelect),
 167                            int WXUNUSED(imageId))
 168 {
 169     wxCHECK_MSG( page || AllowNullPage(), false,
 170                  _T("NULL page in wxBookCtrlBase::InsertPage()") );
 171     wxCHECK_MSG( nPage <= m_pages.size(), false,
 172                  _T("invalid page index in wxBookCtrlBase::InsertPage()") );
 173
 174     m_pages.Insert(page, nPage);
 175     InvalidateBestSize();
 176
 177     return true;
 178 }
 179
 180 bool wxBookCtrlBase::DeletePage(size_t nPage)
 181 {
 182     wxWindow *page = DoRemovePage(nPage);
 183     if ( !(page || AllowNullPage()) )
 184         return false;
 185
 186     // delete NULL is harmless
 187     delete page;
 188
 189     return true;
 190 }
 191
 192 wxWindow *wxBookCtrlBase::DoRemovePage(size_t nPage)
 193 {
 194     wxCHECK_MSG( nPage < m_pages.size(), NULL,
 195                  _T("invalid page index in wxBookCtrlBase::DoRemovePage()") );
 196
 197     wxWindow *pageRemoved = m_pages[nPage];
 198     m_pages.RemoveAt(nPage);
 199     InvalidateBestSize();
 200
 201     return pageRemoved;
 202 }
 203
 204 int wxBookCtrlBase::GetNextPage(bool forward) const
 205 {
 206     int nPage;
 207
 208     int nMax = GetPageCount();
 209     if ( nMax-- ) // decrement it to get the last valid index
 210     {
 211         int nSel = GetSelection();
 212
 213         // change selection wrapping if it becomes invalid
 214         nPage = forward ? nSel == nMax ? 0
 215                                        : nSel + 1
 216                         : nSel == 0 ? nMax
 217                                     : nSel - 1;
 218     }
 219     else // notebook is empty, no next page
 220     {
 221         nPage = wxNOT_FOUND;
 222     }
 223
 224     return nPage;
 225 }
 226
 227 wxRect wxBookCtrlBase::GetPageRect() const
 228 {
 229     const wxSize size = GetControllerSize();
 230
 231     wxPoint pt;
 232     wxRect rectPage(pt, GetClientSize());
 233     switch ( GetWindowStyle() & wxBK_ALIGN_MASK )
 234     {
 235         default:
 236             wxFAIL_MSG( _T("unexpected alignment") );
 237             // fall through
 238
 239         case wxBK_TOP:
 240             rectPage.y = size.y + GetInternalBorder();
 241             // fall through
 242
 243         case wxBK_BOTTOM:
 244             rectPage.height -= size.y + GetInternalBorder();
 245             break;
 246
 247         case wxBK_LEFT:
 248             rectPage.x = size.x + GetInternalBorder();
 249             // fall through
 250
 251         case wxBK_RIGHT:
 252             rectPage.width -= size.x + GetInternalBorder();
 253             break;
 254     }
 255
 256     return rectPage;
 257 }
 258
 259 // Lay out controls
 260 void wxBookCtrlBase::DoSize()
 261 {
 262     if ( !m_bookctrl )
 263     {
 264         // we're not fully created yet or OnSize() should be hidden by derived class
 265         return;
 266     }
 267
 268     // resize controller and the page area to fit inside our new size
 269     const wxSize sizeClient( GetClientSize() ),
 270                  sizeBorder( m_bookctrl->GetSize() - m_bookctrl->GetClientSize() ),
 271                  sizeCtrl( GetControllerSize() );
 272
 273     m_bookctrl->SetClientSize( sizeCtrl.x - sizeBorder.x, sizeCtrl.y - sizeBorder.y );
 274
 275     const wxSize sizeNew = m_bookctrl->GetSize();
 276     wxPoint posCtrl;
 277     switch ( GetWindowStyle() & wxBK_ALIGN_MASK )
 278     {
 279         default:
 280             wxFAIL_MSG( _T("unexpected alignment") );
 281             // fall through
 282
 283         case wxBK_TOP:
 284         case wxBK_LEFT:
 285             // posCtrl is already ok
 286             break;
 287
 288         case wxBK_BOTTOM:
 289             posCtrl.y = sizeClient.y - sizeNew.y;
 290             break;
 291
 292         case wxBK_RIGHT:
 293             posCtrl.x = sizeClient.x - sizeNew.x;
 294             break;
 295     }
 296
 297     if ( m_bookctrl->GetPosition() != posCtrl )
 298         m_bookctrl->Move(posCtrl);
 299
 300     // resize the currently shown page
 301     if (GetSelection() != wxNOT_FOUND )
 302     {
 303         wxWindow *page = m_pages[GetSelection()];
 304         wxCHECK_RET( page, _T("NULL page?") );
 305         page->SetSize(GetPageRect());
 306     }
 307 }
 308
 309 void wxBookCtrlBase::OnSize(wxSizeEvent& event)
 310 {
 311     event.Skip();
 312
 313     DoSize();
 314 }
 315
 316 wxSize wxBookCtrlBase::GetControllerSize() const
 317 {
 318     if(!m_bookctrl)
 319         return wxSize(0,0);
 320
 321     const wxSize sizeClient = GetClientSize(),
 322                  sizeBorder = m_bookctrl->GetSize() - m_bookctrl->GetClientSize(),
 323                  sizeCtrl = m_bookctrl->GetBestSize() + sizeBorder;
 324
 325     wxSize size;
 326
 327     if ( IsVertical() )
 328     {
 329         size.x = sizeClient.x;
 330         size.y = sizeCtrl.y;
 331     }
 332     else // left/right aligned
 333     {
 334         size.x = sizeCtrl.x;
 335         size.y = sizeClient.y;
 336     }
 337
 338     return size;
 339 }
 340
 341 #endif // wxUSE_BOOKCTRL