samples/widgets/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        notebook.cpp
   4 // Purpose:     Part of the widgets sample showing wxNotebook
   5 // Author:      Vadim Zeitlin
   6 // Created:     06.04.01
   7 // Id:          $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin
   9 // License:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/app.h"
  30     #include "wx/log.h"
  31
  32     #include "wx/button.h"
  33     #include "wx/checkbox.h"
  34     #include "wx/combobox.h"
  35     #include "wx/radiobox.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38
  39     #include "wx/dynarray.h"
  40 #endif
  41
  42 #include "wx/sizer.h"
  43 #include "wx/notebook.h"
  44 #include "wx/artprov.h"
  45
  46 #include "widgets.h"
  47 #if 1
  48 #include "icons/notebook.xpm"
  49
  50 // ----------------------------------------------------------------------------
  51 // constants
  52 // ----------------------------------------------------------------------------
  53
  54 // control ids
  55 enum
  56 {
  57     NotebookPage_Reset = 100,
  58     NotebookPage_SelectPage,
  59     NotebookPage_AddPage,
  60     NotebookPage_InsertPage,
  61     NotebookPage_RemovePage,
  62     NotebookPage_DeleteAll,
  63     NotebookPage_InsertText,
  64     NotebookPage_RemoveText,
  65     NotebookPage_SelectText,
  66     NotebookPage_NumPagesText,
  67     NotebookPage_CurSelectText,
  68     NotebookPage_Notebook
  69 };
  70
  71 // notebook orientations
  72 enum Orient
  73 {
  74     Orient_Top,
  75     Orient_Bottom,
  76     Orient_Left,
  77     Orient_Right,
  78     Orient_Max
  79 };
  80
  81 // old versions of wxWidgets don't define this style
  82 #ifndef wxNB_TOP
  83     #define wxNB_TOP (0)
  84 #endif
  85
  86 // ----------------------------------------------------------------------------
  87 // NotebookWidgetsPage
  88 // ----------------------------------------------------------------------------
  89
  90 class NotebookWidgetsPage : public WidgetsPage
  91 {
  92 public:
  93     NotebookWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
  94     virtual ~NotebookWidgetsPage();
  95
  96 protected:
  97     // event handlers
  98     void OnPageChanging(wxNotebookEvent& event);
  99     void OnPageChanged(wxNotebookEvent& event);
 100
 101     void OnButtonReset(wxCommandEvent& event);
 102     void OnButtonDeleteAll(wxCommandEvent& event);
 103     void OnButtonSelectPage(wxCommandEvent& event);
 104     void OnButtonAddPage(wxCommandEvent& event);
 105     void OnButtonInsertPage(wxCommandEvent& event);
 106     void OnButtonRemovePage(wxCommandEvent& event);
 107
 108     void OnCheckOrRadioBox(wxCommandEvent& event);
 109
 110     void OnUpdateUINumPagesText(wxUpdateUIEvent& event);
 111     void OnUpdateUICurSelectText(wxUpdateUIEvent& event);
 112
 113     void OnUpdateUISelectButton(wxUpdateUIEvent& event);
 114     void OnUpdateUIInsertButton(wxUpdateUIEvent& event);
 115     void OnUpdateUIRemoveButton(wxUpdateUIEvent& event);
 116
 117     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 118
 119     // reset the wxNotebook parameters
 120     void Reset();
 121
 122     // (re)create the wxNotebook
 123     void CreateNotebook();
 124
 125     // create or destroy the image list
 126     void CreateImageList();
 127
 128     // create a new page
 129     wxWindow *CreateNewPage();
 130
 131     // get the image index for the new page
 132     int GetIconIndex() const;
 133
 134     // get the numeric value of text ctrl
 135     int GetTextValue(wxTextCtrl *text) const;
 136
 137     // is the value in range?
 138     bool IsValidValue(int val) const
 139         { return (val >= 0) && (val < (int) m_notebook->GetPageCount()); }
 140
 141     // the controls
 142     // ------------
 143
 144     // the check/radio boxes for styles
 145     wxCheckBox *m_chkImages;
 146     wxRadioBox *m_radioOrient;
 147
 148     // the text controls containing input for various commands
 149     wxTextCtrl *m_textInsert,
 150                *m_textRemove,
 151                *m_textSelect;
 152
 153     // the notebook itself and the sizer it is in
 154     wxNotebook *m_notebook;
 155     wxSizer *m_sizerNotebook;
 156
 157     // thei mage list for our notebook
 158     wxImageList *m_imageList;
 159
 160 private:
 161     DECLARE_EVENT_TABLE()
 162     DECLARE_WIDGETS_PAGE(NotebookWidgetsPage)
 163 };
 164
 165 // ----------------------------------------------------------------------------
 166 // event tables
 167 // ----------------------------------------------------------------------------
 168
 169 BEGIN_EVENT_TABLE(NotebookWidgetsPage, WidgetsPage)
 170     EVT_BUTTON(NotebookPage_Reset, NotebookWidgetsPage::OnButtonReset)
 171     EVT_BUTTON(NotebookPage_SelectPage, NotebookWidgetsPage::OnButtonSelectPage)
 172     EVT_BUTTON(NotebookPage_AddPage, NotebookWidgetsPage::OnButtonAddPage)
 173     EVT_BUTTON(NotebookPage_InsertPage, NotebookWidgetsPage::OnButtonInsertPage)
 174     EVT_BUTTON(NotebookPage_RemovePage, NotebookWidgetsPage::OnButtonRemovePage)
 175     EVT_BUTTON(NotebookPage_DeleteAll, NotebookWidgetsPage::OnButtonDeleteAll)
 176
 177     EVT_UPDATE_UI(NotebookPage_NumPagesText, NotebookWidgetsPage::OnUpdateUINumPagesText)
 178     EVT_UPDATE_UI(NotebookPage_CurSelectText, NotebookWidgetsPage::OnUpdateUICurSelectText)
 179
 180     EVT_UPDATE_UI(NotebookPage_SelectPage, NotebookWidgetsPage::OnUpdateUISelectButton)
 181     EVT_UPDATE_UI(NotebookPage_InsertPage, NotebookWidgetsPage::OnUpdateUIInsertButton)
 182     EVT_UPDATE_UI(NotebookPage_RemovePage, NotebookWidgetsPage::OnUpdateUIRemoveButton)
 183
 184     EVT_NOTEBOOK_PAGE_CHANGING(wxID_ANY, NotebookWidgetsPage::OnPageChanging)
 185     EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, NotebookWidgetsPage::OnPageChanged)
 186
 187     EVT_CHECKBOX(wxID_ANY, NotebookWidgetsPage::OnCheckOrRadioBox)
 188     EVT_RADIOBOX(wxID_ANY, NotebookWidgetsPage::OnCheckOrRadioBox)
 189 END_EVENT_TABLE()
 190
 191 // ============================================================================
 192 // implementation
 193 // ============================================================================
 194
 195 IMPLEMENT_WIDGETS_PAGE(NotebookWidgetsPage, _T("Notebook"));
 196
 197 NotebookWidgetsPage::NotebookWidgetsPage(wxNotebook *notebook,
 198                                          wxImageList *imaglist)
 199                   : WidgetsPage(notebook)
 200 {
 201     imaglist->Add(wxBitmap(notebook_xpm));
 202
 203     // init everything
 204     m_chkImages = NULL;
 205     m_imageList = NULL;
 206
 207     m_notebook = (wxNotebook *)NULL;
 208     m_sizerNotebook = (wxSizer *)NULL;
 209
 210     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 211
 212     // left pane
 213     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 214
 215     // must be in sync with Orient enum
 216     wxString orientations[] =
 217     {
 218         _T("&top"),
 219         _T("&bottom"),
 220         _T("&left"),
 221         _T("&right"),
 222     };
 223
 224     wxASSERT_MSG( WXSIZEOF(orientations) == Orient_Max,
 225                   _T("forgot to update something") );
 226
 227     m_chkImages = new wxCheckBox(this, wxID_ANY, _T("Show &images"));
 228     m_radioOrient = new wxRadioBox(this, wxID_ANY, _T("&Tab orientation"),
 229                                    wxDefaultPosition, wxDefaultSize,
 230                                    WXSIZEOF(orientations), orientations,
 231                                    1, wxRA_SPECIFY_COLS);
 232
 233     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 234
 235     sizerLeft->Add(m_chkImages, 0, wxALL, 5);
 236     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 237     sizerLeft->Add(m_radioOrient, 0, wxALL, 5);
 238
 239     wxButton *btn = new wxButton(this, NotebookPage_Reset, _T("&Reset"));
 240     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 241
 242     // middle pane
 243     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Contents"));
 244     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 245
 246     wxTextCtrl *text;
 247     wxSizer *sizerRow = CreateSizerWithTextAndLabel(_T("Number of pages: "),
 248                                                     NotebookPage_NumPagesText,
 249                                                     &text);
 250     text->SetEditable(false);
 251     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 252
 253     sizerRow = CreateSizerWithTextAndLabel(_T("Current selection: "),
 254                                            NotebookPage_CurSelectText,
 255                                            &text);
 256     text->SetEditable(false);
 257     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 258
 259     sizerRow = CreateSizerWithTextAndButton(NotebookPage_SelectPage,
 260                                             _T("&Select page"),
 261                                             NotebookPage_SelectText,
 262                                             &m_textSelect);
 263     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 264
 265     btn = new wxButton(this, NotebookPage_AddPage, _T("&Add page"));
 266     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 267
 268     sizerRow = CreateSizerWithTextAndButton(NotebookPage_InsertPage,
 269                                             _T("&Insert page at"),
 270                                             NotebookPage_InsertText,
 271                                             &m_textInsert);
 272     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 273
 274     sizerRow = CreateSizerWithTextAndButton(NotebookPage_RemovePage,
 275                                             _T("&Remove page"),
 276                                             NotebookPage_RemoveText,
 277                                             &m_textRemove);
 278     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 279
 280     btn = new wxButton(this, NotebookPage_DeleteAll, _T("&Delete All"));
 281     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 282
 283     // right pane
 284     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 285     m_notebook = new wxNotebook(this, NotebookPage_Notebook);
 286     sizerRight->Add(m_notebook, 1, wxGROW | wxALL, 5);
 287     sizerRight->SetMinSize(150, 0);
 288     m_sizerNotebook = sizerRight; // save it to modify it later
 289
 290     // the 3 panes panes compose the window
 291     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 292     sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
 293     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 294
 295     // final initializations
 296     Reset();
 297     CreateImageList();
 298
 299     SetSizer(sizerTop);
 300
 301     sizerTop->Fit(this);
 302 }
 303
 304 NotebookWidgetsPage::~NotebookWidgetsPage()
 305 {
 306     delete m_imageList;
 307 }
 308
 309 // ----------------------------------------------------------------------------
 310 // operations
 311 // ----------------------------------------------------------------------------
 312
 313 void NotebookWidgetsPage::Reset()
 314 {
 315     m_chkImages->SetValue(true);
 316     m_radioOrient->SetSelection(Orient_Top);
 317 }
 318
 319 void NotebookWidgetsPage::CreateImageList()
 320 {
 321     if ( m_chkImages->GetValue() )
 322     {
 323         if ( !m_imageList )
 324         {
 325             // create a dummy image list with a few icons
 326             m_imageList = new wxImageList(32, 32);
 327             wxSize size(32, 32);
 328             m_imageList->Add(wxArtProvider::GetIcon(wxART_INFORMATION, wxART_OTHER, size));
 329             m_imageList->Add(wxArtProvider::GetIcon(wxART_QUESTION, wxART_OTHER, size));
 330             m_imageList->Add(wxArtProvider::GetIcon(wxART_WARNING, wxART_OTHER, size));
 331             m_imageList->Add(wxArtProvider::GetIcon(wxART_ERROR, wxART_OTHER, size));
 332         }
 333
 334         m_notebook->SetImageList(m_imageList);
 335     }
 336     else // no images
 337     {
 338         if ( m_imageList )
 339         {
 340             delete m_imageList;
 341             m_imageList = NULL;
 342         }
 343     }
 344
 345     // because of the bug in wxMSW we can't use SetImageList(NULL) - although
 346     // it would be logical if this removed the image list from notebook, under
 347     // MSW it crashes instead
 348 }
 349
 350 void NotebookWidgetsPage::CreateNotebook()
 351 {
 352     int flags;
 353     switch ( m_radioOrient->GetSelection() )
 354     {
 355         default:
 356             wxFAIL_MSG( _T("unknown notebook orientation") );
 357             // fall through
 358
 359         case Orient_Top:
 360             flags = wxNB_TOP;
 361             break;
 362
 363         case Orient_Bottom:
 364             flags = wxNB_BOTTOM;
 365             break;
 366
 367         case Orient_Left:
 368             flags = wxNB_LEFT;
 369             break;
 370
 371         case Orient_Right:
 372             flags = wxNB_RIGHT;
 373             break;
 374     }
 375
 376     wxNotebook *old_note = m_notebook;
 377
 378     m_notebook = new wxNotebook(this, NotebookPage_Notebook,
 379                                 wxDefaultPosition, wxDefaultSize,
 380                                 flags);
 381
 382     CreateImageList();
 383
 384     if ( old_note )
 385     {
 386         const int sel = old_note->GetSelection();
 387
 388         const int count = old_note->GetPageCount();
 389
 390         // recreate the pages
 391         for ( int n = 0; n < count; n++ )
 392         {
 393             m_notebook->AddPage(CreateNewPage(),
 394                                 old_note->GetPageText(n),
 395                                 false,
 396                                                                                                                                 m_chkImages->GetValue() ?
 397                                 GetIconIndex() : -1);
 398         }
 399
 400         m_sizerNotebook->Detach( old_note );
 401         delete old_note;
 402
 403         // restore selection
 404         if ( sel != -1 )
 405         {
 406             m_notebook->SetSelection(sel);
 407         }
 408     }
 409
 410     m_sizerNotebook->Add(m_notebook, 1, wxGROW | wxALL, 5);
 411     m_sizerNotebook->Layout();
 412 }
 413
 414 // ----------------------------------------------------------------------------
 415 // helpers
 416 // ----------------------------------------------------------------------------
 417
 418 int NotebookWidgetsPage::GetTextValue(wxTextCtrl *text) const
 419 {
 420     long pos;
 421     if ( !text->GetValue().ToLong(&pos) )
 422         pos = -1;
 423
 424     return (int)pos;
 425 }
 426
 427 int NotebookWidgetsPage::GetIconIndex() const
 428 {
 429     if ( m_imageList )
 430     {
 431        int nImages = m_imageList->GetImageCount();
 432        if ( nImages > 0 )
 433        {
 434            return m_notebook->GetPageCount() % nImages;
 435        }
 436     }
 437
 438     return -1;
 439 }
 440
 441 wxWindow *NotebookWidgetsPage::CreateNewPage()
 442 {
 443     return new wxTextCtrl(m_notebook, wxID_ANY, _T("I'm a notebook page"));
 444 }
 445
 446 // ----------------------------------------------------------------------------
 447 // event handlers
 448 // ----------------------------------------------------------------------------
 449
 450 void NotebookWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 451 {
 452     Reset();
 453
 454     CreateNotebook();
 455 }
 456
 457 void NotebookWidgetsPage::OnButtonDeleteAll(wxCommandEvent& WXUNUSED(event))
 458 {
 459     m_notebook->DeleteAllPages();
 460 }
 461
 462 void NotebookWidgetsPage::OnButtonSelectPage(wxCommandEvent& WXUNUSED(event))
 463 {
 464     int pos = GetTextValue(m_textSelect);
 465     wxCHECK_RET( IsValidValue(pos), _T("button should be disabled") );
 466
 467     m_notebook->SetSelection(pos);
 468 }
 469
 470 void NotebookWidgetsPage::OnButtonAddPage(wxCommandEvent& WXUNUSED(event))
 471 {
 472     m_notebook->AddPage(CreateNewPage(), _T("Added page"), false,
 473                         GetIconIndex());
 474 }
 475
 476 void NotebookWidgetsPage::OnButtonInsertPage(wxCommandEvent& WXUNUSED(event))
 477 {
 478     int pos = GetTextValue(m_textInsert);
 479     wxCHECK_RET( IsValidValue(pos), _T("button should be disabled") );
 480
 481     m_notebook->InsertPage(pos, CreateNewPage(), _T("Inserted page"), false,
 482                            GetIconIndex());
 483 }
 484
 485 void NotebookWidgetsPage::OnButtonRemovePage(wxCommandEvent& WXUNUSED(event))
 486 {
 487     int pos = GetTextValue(m_textRemove);
 488     wxCHECK_RET( IsValidValue(pos), _T("button should be disabled") );
 489
 490     m_notebook->DeletePage(pos);
 491 }
 492
 493 void NotebookWidgetsPage::OnUpdateUISelectButton(wxUpdateUIEvent& event)
 494 {
 495     event.Enable( IsValidValue(GetTextValue(m_textSelect)) );
 496 }
 497
 498 void NotebookWidgetsPage::OnUpdateUIInsertButton(wxUpdateUIEvent& event)
 499 {
 500     event.Enable( IsValidValue(GetTextValue(m_textInsert)) );
 501 }
 502
 503 void NotebookWidgetsPage::OnUpdateUIRemoveButton(wxUpdateUIEvent& event)
 504 {
 505     event.Enable( IsValidValue(GetTextValue(m_textRemove)) );
 506 }
 507
 508 void NotebookWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 509 {
 510     event.Enable( !m_chkImages->GetValue() ||
 511                   m_radioOrient->GetSelection() != wxNB_TOP );
 512 }
 513
 514 void NotebookWidgetsPage::OnUpdateUINumPagesText(wxUpdateUIEvent& event)
 515 {
 516     event.SetText( wxString::Format(_T("%d"), m_notebook->GetPageCount()) );
 517 }
 518
 519 void NotebookWidgetsPage::OnUpdateUICurSelectText(wxUpdateUIEvent& event)
 520 {
 521     event.SetText( wxString::Format(_T("%d"), m_notebook->GetSelection()) );
 522 }
 523
 524 void NotebookWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 525 {
 526     CreateNotebook();
 527 }
 528
 529 void NotebookWidgetsPage::OnPageChanging(wxNotebookEvent& event)
 530 {
 531     wxLogMessage(_T("Notebook page changing from %d to %d (currently %d)."),
 532                  event.GetOldSelection(),
 533                  event.GetSelection(),
 534                  m_notebook->GetSelection());
 535
 536     event.Skip();
 537 }
 538
 539 void NotebookWidgetsPage::OnPageChanged(wxNotebookEvent& event)
 540 {
 541     wxLogMessage(_T("Notebook page changed from %d to %d (currently %d)."),
 542                  event.GetOldSelection(),
 543                  event.GetSelection(),
 544                  m_notebook->GetSelection());
 545
 546     event.Skip();
 547 }
 548
 549 #endif