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