src/generic/choicbkg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/choicbkg.cpp
   3 // Purpose:     generic implementation of wxChoicebook
   4 // Author:      Vadim Zeitlin
   5 // Modified by: Wlodzimierz ABX Skiba from generic/listbkg.cpp
   6 // Created:     15.09.04
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin, Wlodzimierz Skiba
   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_CHOICEBOOK
  28
  29 #include "wx/choicebk.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/settings.h"
  33     #include "wx/choice.h"
  34     #include "wx/sizer.h"
  35 #endif
  36
  37 #include "wx/imaglist.h"
  38
  39 // ----------------------------------------------------------------------------
  40 // various wxWidgets macros
  41 // ----------------------------------------------------------------------------
  42
  43 // check that the page index is valid
  44 #define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
  45
  46 // ----------------------------------------------------------------------------
  47 // event table
  48 // ----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxChoicebook, wxBookCtrlBase)
  51 IMPLEMENT_DYNAMIC_CLASS(wxChoicebookEvent, wxNotifyEvent)
  52
  53 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
  54 const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING = wxNewEventType();
  55 const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED = wxNewEventType();
  56 #endif
  57
  58 BEGIN_EVENT_TABLE(wxChoicebook, wxBookCtrlBase)
  59     EVT_CHOICE(wxID_ANY, wxChoicebook::OnChoiceSelected)
  60 END_EVENT_TABLE()
  61
  62 // ============================================================================
  63 // wxChoicebook implementation
  64 // ============================================================================
  65
  66 // ----------------------------------------------------------------------------
  67 // wxChoicebook creation
  68 // ----------------------------------------------------------------------------
  69
  70 void wxChoicebook::Init()
  71 {
  72     m_selection = wxNOT_FOUND;
  73 }
  74
  75 bool
  76 wxChoicebook::Create(wxWindow *parent,
  77                      wxWindowID id,
  78                      const wxPoint& pos,
  79                      const wxSize& size,
  80                      long style,
  81                      const wxString& name)
  82 {
  83     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
  84     {
  85         style |= wxBK_TOP;
  86     }
  87
  88     // no border for this control, it doesn't look nice together with
  89     // wxChoice border
  90     style &= ~wxBORDER_MASK;
  91     style |= wxBORDER_NONE;
  92
  93     if ( !wxControl::Create(parent, id, pos, size, style,
  94                             wxDefaultValidator, name) )
  95         return false;
  96
  97     m_bookctrl = new wxChoice
  98                  (
  99                     this,
 100                     wxID_ANY,
 101                     wxDefaultPosition,
 102                     wxDefaultSize
 103                  );
 104
 105     wxSizer* mainSizer = new wxBoxSizer(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
 106
 107     if (style & wxBK_RIGHT || style & wxBK_BOTTOM)
 108         mainSizer->Add(0, 0, 1, wxEXPAND, 0);
 109
 110     m_controlSizer = new wxBoxSizer(IsVertical() ? wxHORIZONTAL : wxVERTICAL);
 111     m_controlSizer->Add(m_bookctrl, 1, (IsVertical() ? wxALIGN_CENTRE_VERTICAL : wxALIGN_CENTRE) |wxGROW, 0);
 112     mainSizer->Add(m_controlSizer, 0, (IsVertical() ? (int) wxGROW : (int) wxALIGN_CENTRE_VERTICAL)|wxALL, m_controlMargin);
 113     SetSizer(mainSizer);
 114     return true;
 115 }
 116
 117 // ----------------------------------------------------------------------------
 118 // wxChoicebook geometry management
 119 // ----------------------------------------------------------------------------
 120
 121 wxSize wxChoicebook::GetControllerSize() const
 122 {
 123     const wxSize sizeClient = GetClientSize(),
 124                  sizeChoice = m_controlSizer->CalcMin();
 125
 126     wxSize size;
 127     if ( IsVertical() )
 128     {
 129         size.x = sizeClient.x;
 130         size.y = sizeChoice.y;
 131     }
 132     else // left/right aligned
 133     {
 134         size.x = sizeChoice.x;
 135         size.y = sizeClient.y;
 136     }
 137
 138     return size;
 139 }
 140
 141 wxSize wxChoicebook::CalcSizeFromPage(const wxSize& sizePage) const
 142 {
 143     // we need to add the size of the choice control and the border between
 144     const wxSize sizeChoice = GetControllerSize();
 145
 146     wxSize size = sizePage;
 147     if ( IsVertical() )
 148     {
 149         size.y += sizeChoice.y + GetInternalBorder();
 150     }
 151     else // left/right aligned
 152     {
 153         size.x += sizeChoice.x + GetInternalBorder();
 154     }
 155
 156     return size;
 157 }
 158
 159
 160 // ----------------------------------------------------------------------------
 161 // accessing the pages
 162 // ----------------------------------------------------------------------------
 163
 164 bool wxChoicebook::SetPageText(size_t n, const wxString& strText)
 165 {
 166     GetChoiceCtrl()->SetString(n, strText);
 167
 168     return true;
 169 }
 170
 171 wxString wxChoicebook::GetPageText(size_t n) const
 172 {
 173     return GetChoiceCtrl()->GetString(n);
 174 }
 175
 176 int wxChoicebook::GetPageImage(size_t WXUNUSED(n)) const
 177 {
 178     wxFAIL_MSG( _T("wxChoicebook::GetPageImage() not implemented") );
 179
 180     return wxNOT_FOUND;
 181 }
 182
 183 bool wxChoicebook::SetPageImage(size_t WXUNUSED(n), int WXUNUSED(imageId))
 184 {
 185     wxFAIL_MSG( _T("wxChoicebook::SetPageImage() not implemented") );
 186
 187     return false;
 188 }
 189
 190 // ----------------------------------------------------------------------------
 191 // image list stuff
 192 // ----------------------------------------------------------------------------
 193
 194 void wxChoicebook::SetImageList(wxImageList *imageList)
 195 {
 196     // TODO: can be implemented in form of static bitmap near choice control
 197
 198     wxBookCtrlBase::SetImageList(imageList);
 199 }
 200
 201 // ----------------------------------------------------------------------------
 202 // selection
 203 // ----------------------------------------------------------------------------
 204
 205 int wxChoicebook::GetSelection() const
 206 {
 207     return m_selection;
 208 }
 209
 210 wxBookCtrlBaseEvent* wxChoicebook::CreatePageChangingEvent() const
 211 {
 212     return new wxChoicebookEvent(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, m_windowId);
 213 }
 214
 215 void wxChoicebook::MakeChangedEvent(wxBookCtrlBaseEvent &event)
 216 {
 217     event.SetEventType(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED);
 218 }
 219
 220 // ----------------------------------------------------------------------------
 221 // adding/removing the pages
 222 // ----------------------------------------------------------------------------
 223
 224 bool
 225 wxChoicebook::InsertPage(size_t n,
 226                          wxWindow *page,
 227                          const wxString& text,
 228                          bool bSelect,
 229                          int imageId)
 230 {
 231     if ( !wxBookCtrlBase::InsertPage(n, page, text, bSelect, imageId) )
 232         return false;
 233
 234     GetChoiceCtrl()->Insert(text, n);
 235
 236     // if the inserted page is before the selected one, we must update the
 237     // index of the selected page
 238     if ( int(n) <= m_selection )
 239     {
 240         // one extra page added
 241         m_selection++;
 242         GetChoiceCtrl()->Select(m_selection);
 243     }
 244
 245     // some page should be selected: either this one or the first one if there
 246     // is still no selection
 247     int selNew = wxNOT_FOUND;
 248     if ( bSelect )
 249         selNew = n;
 250     else if ( m_selection == wxNOT_FOUND )
 251         selNew = 0;
 252
 253     if ( selNew != m_selection )
 254         page->Hide();
 255
 256     if ( selNew != wxNOT_FOUND )
 257         SetSelection(selNew);
 258
 259     return true;
 260 }
 261
 262 wxWindow *wxChoicebook::DoRemovePage(size_t page)
 263 {
 264     const size_t page_count = GetPageCount();
 265     wxWindow *win = wxBookCtrlBase::DoRemovePage(page);
 266
 267     if ( win )
 268     {
 269         GetChoiceCtrl()->Delete(page);
 270
 271         if (m_selection >= (int)page)
 272         {
 273             // force new sel valid if possible
 274             int sel = m_selection - 1;
 275             if (page_count == 1)
 276                 sel = wxNOT_FOUND;
 277             else if ((page_count == 2) || (sel == -1))
 278                 sel = 0;
 279
 280             // force sel invalid if deleting current page - don't try to hide it
 281             m_selection = (m_selection == (int)page) ? wxNOT_FOUND : m_selection - 1;
 282
 283             if ((sel != wxNOT_FOUND) && (sel != m_selection))
 284                 SetSelection(sel);
 285            }
 286     }
 287
 288     return win;
 289 }
 290
 291
 292 bool wxChoicebook::DeleteAllPages()
 293 {
 294     GetChoiceCtrl()->Clear();
 295     return wxBookCtrlBase::DeleteAllPages();
 296 }
 297
 298 // ----------------------------------------------------------------------------
 299 // wxChoicebook events
 300 // ----------------------------------------------------------------------------
 301
 302 void wxChoicebook::OnChoiceSelected(wxCommandEvent& eventChoice)
 303 {
 304     if ( eventChoice.GetEventObject() != m_bookctrl )
 305     {
 306         eventChoice.Skip();
 307         return;
 308     }
 309
 310     const int selNew = eventChoice.GetSelection();
 311
 312     if ( selNew == m_selection )
 313     {
 314         // this event can only come from our own Select(m_selection) below
 315         // which we call when the page change is vetoed, so we should simply
 316         // ignore it
 317         return;
 318     }
 319
 320     SetSelection(selNew);
 321
 322     // change wasn't allowed, return to previous state
 323     if (m_selection != selNew)
 324         GetChoiceCtrl()->Select(m_selection);
 325 }
 326
 327 #endif // wxUSE_CHOICEBOOK