samples/statbar/statbar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statbar.cpp
   3 // Purpose:     wxStatusBar sample
   4 // Author:      Vadim Zeitlin
   5 // Created:     04.02.00
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Vadim Zeitlin
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx/wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if !wxUSE_STATUSBAR
  27     #error "You need to set wxUSE_STATUSBAR to 1 to compile this sample"
  28 #endif // wxUSE_STATUSBAR
  29
  30 // for all others, include the necessary headers
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/dcclient.h"
  34     #include "wx/log.h"
  35     #include "wx/frame.h"
  36     #include "wx/statusbr.h"
  37     #include "wx/timer.h"
  38     #include "wx/checkbox.h"
  39     #include "wx/statbmp.h"
  40     #include "wx/menu.h"
  41     #include "wx/msgdlg.h"
  42     #include "wx/textdlg.h"
  43     #include "wx/sizer.h"
  44     #include "wx/stattext.h"
  45     #include "wx/bmpbuttn.h"
  46     #include "wx/dcmemory.h"
  47 #endif
  48
  49 #include "wx/datetime.h"
  50 #include "wx/numdlg.h"
  51 #include "wx/fontdlg.h"
  52
  53 #ifndef __WXMSW__
  54     #include "../sample.xpm"
  55 #endif
  56
  57 //#define USE_MDI_PARENT_FRAME 1
  58 #ifdef USE_MDI_PARENT_FRAME
  59     #include "wx/mdi.h"
  60 #endif // USE_MDI_PARENT_FRAME
  61
  62 static const char *SAMPLE_DIALOGS_TITLE = "wxWidgets statbar sample";
  63
  64 // ----------------------------------------------------------------------------
  65 // resources
  66 // ----------------------------------------------------------------------------
  67
  68 #include "green.xpm"
  69 #include "red.xpm"
  70
  71 // ----------------------------------------------------------------------------
  72 // private classes
  73 // ----------------------------------------------------------------------------
  74
  75 // Define a new application type, each program should derive a class from wxApp
  76 class MyApp : public wxApp
  77 {
  78 public:
  79     // override base class virtuals
  80     // ----------------------------
  81
  82     // this one is called on application startup and is a good place for the app
  83     // initialization (doing it here and not in the ctor allows to have an error
  84     // return: if OnInit() returns false, the application terminates)
  85     virtual bool OnInit();
  86 };
  87
  88 // A custom status bar which contains controls, icons &c
  89 class MyStatusBar : public wxStatusBar
  90 {
  91 public:
  92     MyStatusBar(wxWindow *parent, long style = wxSTB_DEFAULT_STYLE);
  93     virtual ~MyStatusBar();
  94
  95     void UpdateClock();
  96
  97     // event handlers
  98 #if wxUSE_TIMER
  99     void OnTimer(wxTimerEvent& WXUNUSED(event)) { UpdateClock(); }
 100 #endif
 101     void OnSize(wxSizeEvent& event);
 102     void OnToggleClock(wxCommandEvent& event);
 103     void OnIdle(wxIdleEvent& event);
 104
 105 private:
 106     // toggle the state of the status bar controls
 107     void DoToggle();
 108
 109     enum
 110     {
 111         Field_Text,
 112         Field_Checkbox,
 113         Field_Bitmap,
 114         Field_NumLockIndicator,
 115         Field_Clock,
 116         Field_CapsLockIndicator,
 117         Field_Max
 118     };
 119
 120 #if wxUSE_TIMER
 121     wxTimer m_timer;
 122 #endif
 123
 124 #if wxUSE_CHECKBOX
 125     wxCheckBox *m_checkbox;
 126 #endif
 127     wxStaticBitmap *m_statbmp;
 128
 129     DECLARE_EVENT_TABLE()
 130 };
 131
 132 // Define a new frame type: this is going to be our main frame
 133 #ifdef USE_MDI_PARENT_FRAME
 134 class MyFrame : public wxMDIParentFrame
 135 #else
 136 class MyFrame : public wxFrame
 137 #endif
 138 {
 139 public:
 140     // ctor(s)
 141     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 142
 143     // event handlers (these functions should _not_ be virtual)
 144     void OnQuit(wxCommandEvent& event);
 145     void OnAbout(wxCommandEvent& event);
 146
 147     void OnSetStatusField(wxCommandEvent& event);
 148     void OnSetStatusText(wxCommandEvent& event);
 149     void OnPushStatusText(wxCommandEvent& event);
 150     void OnPopStatusText(wxCommandEvent& event);
 151
 152     void OnResetFieldsWidth(wxCommandEvent& event);
 153     void OnShowFieldsRect(wxCommandEvent& event);
 154     void OnSetStatusFields(wxCommandEvent& event);
 155     void OnSetStatusFont(wxCommandEvent& event);
 156     void OnRecreateStatusBar(wxCommandEvent& event);
 157
 158     void OnSetPaneStyle(wxCommandEvent& event);
 159     void OnSetStyle(wxCommandEvent& event);
 160
 161 private:
 162     enum StatusBarKind
 163     {
 164         StatBar_Default,
 165         StatBar_Custom,
 166         StatBar_Max
 167     } m_statbarKind;
 168
 169
 170     void OnUpdateForDefaultStatusbar(wxUpdateUIEvent& event);
 171     void OnUpdateStatusBarToggle(wxUpdateUIEvent& event);
 172     void OnUpdateSetPaneStyle(wxUpdateUIEvent& event);
 173     void OnUpdateSetStyle(wxUpdateUIEvent& event);
 174     void OnStatusBarToggle(wxCommandEvent& event);
 175     void DoCreateStatusBar(StatusBarKind kind, long style);
 176     void ApplyPaneStyle();
 177
 178     int m_statbarPaneStyle;
 179
 180     // the index of the field used by some commands
 181     int m_field;
 182
 183     // any class wishing to process wxWidgets events must use this macro
 184     DECLARE_EVENT_TABLE()
 185 };
 186
 187 // Our about dialog ith its status bar
 188 class MyAboutDialog : public wxDialog
 189 {
 190 public:
 191     MyAboutDialog(wxWindow *parent);
 192 };
 193
 194 // ----------------------------------------------------------------------------
 195 // constants
 196 // ----------------------------------------------------------------------------
 197
 198 // IDs for the controls and the menu commands
 199 enum
 200 {
 201     // menu items
 202     StatusBar_Quit = wxID_EXIT,
 203     StatusBar_About = wxID_ABOUT,
 204
 205     StatusBar_SetFields = wxID_HIGHEST+1,
 206     StatusBar_SetField,
 207     StatusBar_SetText,
 208     StatusBar_PushText,
 209     StatusBar_PopText,
 210     StatusBar_SetFont,
 211     StatusBar_ResetFieldsWidth,
 212     StatusBar_ShowFieldsRect,
 213
 214     StatusBar_Recreate,
 215     StatusBar_Toggle,
 216     StatusBar_Checkbox,
 217     StatusBar_SetPaneStyle,
 218     StatusBar_SetPaneStyleNormal,
 219     StatusBar_SetPaneStyleFlat,
 220     StatusBar_SetPaneStyleRaised,
 221
 222     StatusBar_SetStyleSizeGrip,
 223     StatusBar_SetStyleEllipsizeStart,
 224     StatusBar_SetStyleEllipsizeMiddle,
 225     StatusBar_SetStyleEllipsizeEnd,
 226     StatusBar_SetStyleShowTips
 227 };
 228
 229 static const int BITMAP_SIZE_X = 32;
 230 static const int BITMAP_SIZE_Y = 15;
 231
 232 // ----------------------------------------------------------------------------
 233 // event tables and other macros for wxWidgets
 234 // ----------------------------------------------------------------------------
 235
 236 // the event tables connect the wxWidgets events with the functions (event
 237 // handlers) which process them. It can be also done at run-time, but for the
 238 // simple menu events like this the static method is much simpler.
 239 #ifdef USE_MDI_PARENT_FRAME
 240 BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
 241 #else
 242 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 243 #endif
 244     EVT_MENU(StatusBar_Quit,  MyFrame::OnQuit)
 245     EVT_MENU(StatusBar_SetFields, MyFrame::OnSetStatusFields)
 246     EVT_MENU(StatusBar_SetField, MyFrame::OnSetStatusField)
 247     EVT_MENU(StatusBar_SetText, MyFrame::OnSetStatusText)
 248     EVT_MENU(StatusBar_PushText, MyFrame::OnPushStatusText)
 249     EVT_MENU(StatusBar_PopText, MyFrame::OnPopStatusText)
 250     EVT_MENU(StatusBar_SetFont, MyFrame::OnSetStatusFont)
 251     EVT_MENU(StatusBar_ResetFieldsWidth, MyFrame::OnResetFieldsWidth)
 252     EVT_MENU(StatusBar_ShowFieldsRect, MyFrame::OnShowFieldsRect)
 253     EVT_MENU(StatusBar_Recreate, MyFrame::OnRecreateStatusBar)
 254     EVT_MENU(StatusBar_About, MyFrame::OnAbout)
 255     EVT_MENU(StatusBar_Toggle, MyFrame::OnStatusBarToggle)
 256     EVT_MENU(StatusBar_SetPaneStyleNormal, MyFrame::OnSetPaneStyle)
 257     EVT_MENU(StatusBar_SetPaneStyleFlat, MyFrame::OnSetPaneStyle)
 258     EVT_MENU(StatusBar_SetPaneStyleRaised, MyFrame::OnSetPaneStyle)
 259
 260     EVT_MENU(StatusBar_SetStyleSizeGrip, MyFrame::OnSetStyle)
 261     EVT_MENU(StatusBar_SetStyleEllipsizeStart, MyFrame::OnSetStyle)
 262     EVT_MENU(StatusBar_SetStyleEllipsizeMiddle, MyFrame::OnSetStyle)
 263     EVT_MENU(StatusBar_SetStyleEllipsizeEnd, MyFrame::OnSetStyle)
 264     EVT_MENU(StatusBar_SetStyleShowTips, MyFrame::OnSetStyle)
 265
 266     EVT_UPDATE_UI_RANGE(StatusBar_SetFields, StatusBar_ResetFieldsWidth,
 267                         MyFrame::OnUpdateForDefaultStatusbar)
 268     EVT_UPDATE_UI(StatusBar_Toggle, MyFrame::OnUpdateStatusBarToggle)
 269     EVT_UPDATE_UI_RANGE(StatusBar_SetPaneStyleNormal,
 270                         StatusBar_SetPaneStyleRaised,
 271                         MyFrame::OnUpdateSetPaneStyle)
 272     EVT_UPDATE_UI_RANGE(StatusBar_SetStyleSizeGrip, StatusBar_SetStyleShowTips,
 273                         MyFrame::OnUpdateSetStyle)
 274 END_EVENT_TABLE()
 275
 276 BEGIN_EVENT_TABLE(MyStatusBar, wxStatusBar)
 277     EVT_SIZE(MyStatusBar::OnSize)
 278 #if wxUSE_CHECKBOX
 279     EVT_CHECKBOX(StatusBar_Checkbox, MyStatusBar::OnToggleClock)
 280 #endif
 281 #if wxUSE_TIMER
 282     EVT_TIMER(wxID_ANY, MyStatusBar::OnTimer)
 283 #endif
 284     EVT_IDLE(MyStatusBar::OnIdle)
 285 END_EVENT_TABLE()
 286
 287 // Create a new application object: this macro will allow wxWidgets to create
 288 // the application object during program execution (it's better than using a
 289 // static object for many reasons) and also declares the accessor function
 290 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 291 // not wxApp)
 292 IMPLEMENT_APP(MyApp)
 293
 294 // ============================================================================
 295 // implementation
 296 // ============================================================================
 297
 298 // ----------------------------------------------------------------------------
 299 // the application class
 300 // ----------------------------------------------------------------------------
 301
 302 // `Main program' equivalent: the program execution "starts" here
 303 bool MyApp::OnInit()
 304 {
 305     if ( !wxApp::OnInit() )
 306         return false;
 307
 308     // create the main application window
 309     MyFrame *frame = new MyFrame(wxT("wxStatusBar sample"),
 310                                  wxPoint(50, 50), wxSize(450, 340));
 311
 312     // and show it (the frames, unlike simple controls, are not shown when
 313     // created initially)
 314     frame->Show(true);
 315
 316     // success: wxApp::OnRun() will be called which will enter the main message
 317     // loop and the application will run. If we returned 'false' here, the
 318     // application would exit immediately.
 319     return true;
 320 }
 321
 322 // ----------------------------------------------------------------------------
 323 // main frame
 324 // ----------------------------------------------------------------------------
 325
 326 // frame constructor
 327 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 328 #ifdef USE_MDI_PARENT_FRAME
 329     : wxMDIParentFrame(NULL, wxID_ANY, title, pos, size)
 330 #else
 331     : wxFrame(NULL, wxID_ANY, title, pos, size)
 332 #endif
 333 {
 334     SetIcon(wxICON(sample));
 335
 336     m_statbarPaneStyle = wxSB_NORMAL;
 337     m_field = 1;
 338
 339     // create a menu bar
 340     wxMenu *menuFile = new wxMenu;
 341     menuFile->Append(StatusBar_Quit, wxT("E&xit\tAlt-X"),
 342                      wxT("Quit this program"));
 343
 344     wxMenu *statbarMenu = new wxMenu;
 345
 346     wxMenu *statbarStyleMenu = new wxMenu;
 347     statbarStyleMenu->Append(StatusBar_SetStyleSizeGrip, wxT("wxSTB_SIZE_GRIP"),
 348                              wxT("Toggles the wxSTB_SIZE_GRIP style"), true);
 349     statbarStyleMenu->Append(StatusBar_SetStyleShowTips, wxT("wxSTB_SHOW_TIPS"),
 350                              wxT("Toggles the wxSTB_SHOW_TIPS style"), true);
 351     statbarStyleMenu->AppendSeparator();
 352     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeStart,
 353                                       wxT("wxSTB_ELLIPSIZE_START"),
 354                                       wxT("Toggle wxSTB_ELLIPSIZE_START style"));
 355     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeMiddle,
 356                                       wxT("wxSTB_ELLIPSIZE_MIDDLE"),
 357                                       wxT("Toggle wxSTB_ELLIPSIZE_MIDDLE style"));
 358     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeEnd,
 359                                       wxT("wxSTB_ELLIPSIZE_END"),
 360                                       wxT("Toggle wxSTB_ELLIPSIZE_END style"));
 361     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Status bar style"),
 362                         statbarStyleMenu);
 363     statbarMenu->AppendSeparator();
 364
 365     statbarMenu->Append(StatusBar_SetField, "Set active field &number\tCtrl-N",
 366                         "Set the number of field used by the next commands.");
 367     statbarMenu->Append(StatusBar_SetText, wxT("Set field &text\tCtrl-T"),
 368                         wxT("Set the text of the selected field."));
 369     statbarMenu->Append(StatusBar_PushText, "P&ush field text\tCtrl-P",
 370                         "Push a message on top the selected field.");
 371     statbarMenu->Append(StatusBar_PopText, "&Pop field text\tShift-Ctrl-P",
 372                         "Restore the previous contents of the selected field.");
 373     statbarMenu->AppendSeparator();
 374
 375     statbarMenu->Append(StatusBar_SetFields, wxT("&Set field count\tCtrl-C"),
 376                         wxT("Set the number of status bar fields"));
 377     statbarMenu->Append(StatusBar_SetFont, wxT("&Set field font\tCtrl-F"),
 378                         wxT("Set the font to use for status bar fields"));
 379
 380     wxMenu *statbarPaneStyleMenu = new wxMenu;
 381     statbarPaneStyleMenu->AppendCheckItem
 382         (
 383             StatusBar_SetPaneStyleNormal,
 384             wxT("&Normal"),
 385             wxT("Sets the style of the first field to normal (sunken) look")
 386         );
 387     statbarPaneStyleMenu->AppendCheckItem
 388         (
 389             StatusBar_SetPaneStyleFlat,
 390             wxT("&Flat"),
 391             wxT("Sets the style of the first field to flat look")
 392         );
 393     statbarPaneStyleMenu->AppendCheckItem
 394         (
 395             StatusBar_SetPaneStyleRaised,
 396             wxT("&Raised"),
 397             wxT("Sets the style of the first field to raised look")
 398         );
 399     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Field style"),
 400                         statbarPaneStyleMenu);
 401
 402     statbarMenu->Append(StatusBar_ResetFieldsWidth, wxT("Reset field widths"),
 403                         wxT("Sets all fields to the same width"));
 404     statbarMenu->Append(StatusBar_ShowFieldsRect,
 405                         wxT("Sho&w field rectangles\tCtrl-W"),
 406                         wxT("Visually show field rectangles"));
 407     statbarMenu->AppendSeparator();
 408
 409     statbarMenu->AppendCheckItem(StatusBar_Toggle, wxT("&Toggle Status Bar"),
 410                                  wxT("Toggle the status bar display"));
 411     statbarMenu->Append(StatusBar_Recreate, wxT("&Recreate\tCtrl-R"),
 412                         wxT("Toggle status bar format"));
 413
 414     wxMenu *helpMenu = new wxMenu;
 415     helpMenu->Append(StatusBar_About, wxT("&About\tCtrl-A"),
 416                      wxT("Show about dialog"));
 417
 418     // now append the freshly created menu to the menu bar...
 419     wxMenuBar *menuBar = new wxMenuBar();
 420     menuBar->Append(menuFile, wxT("&File"));
 421     menuBar->Append(statbarMenu, wxT("&Status bar"));
 422     menuBar->Append(helpMenu, wxT("&Help"));
 423
 424     // ... and attach this menu bar to the frame
 425     SetMenuBar(menuBar);
 426
 427     // create default status bar to start with
 428     DoCreateStatusBar(StatBar_Default, wxSTB_DEFAULT_STYLE);
 429     SetStatusText(wxT("Welcome to wxWidgets!"));
 430 }
 431
 432 void MyFrame::DoCreateStatusBar(MyFrame::StatusBarKind kind, long style)
 433 {
 434     wxStatusBar *statbarOld = GetStatusBar();
 435     if ( statbarOld )
 436     {
 437         SetStatusBar(NULL);
 438         delete statbarOld;
 439     }
 440
 441     wxStatusBar *statbarNew = NULL;
 442     switch ( kind )
 443     {
 444         case StatBar_Default:
 445             statbarNew = new wxStatusBar(this, wxID_ANY, style, "wxStatusBar");
 446             statbarNew->SetFieldsCount(2);
 447             break;
 448
 449         case StatBar_Custom:
 450             statbarNew = new MyStatusBar(this, style);
 451             break;
 452
 453         default:
 454             wxFAIL_MSG(wxT("unknown status bar kind"));
 455     }
 456
 457     SetStatusBar(statbarNew);
 458     ApplyPaneStyle();
 459     PositionStatusBar();
 460
 461     m_statbarKind = kind;
 462 }
 463
 464
 465 // ----------------------------------------------------------------------------
 466 // main frame - event handlers
 467 // ----------------------------------------------------------------------------
 468
 469 void MyFrame::OnUpdateForDefaultStatusbar(wxUpdateUIEvent& event)
 470 {
 471     // only allow this feature for the default status bar
 472     wxStatusBar *sb = GetStatusBar();
 473     if (!sb)
 474         return;
 475
 476     event.Enable(sb->GetName() == "wxStatusBar");
 477 }
 478
 479 void MyFrame::OnSetStatusField(wxCommandEvent& WXUNUSED(event))
 480 {
 481     wxStatusBar *sb = GetStatusBar();
 482     if (!sb)
 483         return;
 484
 485     long rc = wxGetNumberFromUser
 486               (
 487                 "Configure the field index to be used by the set, push "
 488                 "and pop text commands in the menu.\n"
 489                 "\n"
 490                 "0 corresponds to the first field, 1 to the second one "
 491                 "and so on.",
 492                 "Field &index:",
 493                 SAMPLE_DIALOGS_TITLE,
 494                 m_field,
 495                 0,
 496                 sb->GetFieldsCount() - 1,
 497                 NULL
 498               );
 499
 500     if ( rc == -1 )
 501         return;
 502
 503     m_field = rc;
 504
 505     wxLogStatus("Status bar text will be set for field #%d", m_field);
 506 }
 507
 508 void MyFrame::OnSetStatusText(wxCommandEvent& WXUNUSED(event))
 509 {
 510     wxStatusBar *sb = GetStatusBar();
 511     if (!sb)
 512         return;
 513
 514     wxString txt = wxGetTextFromUser
 515                    (
 516                         wxString::Format
 517                         (
 518                             "Enter the text from for the field #%d",
 519                             m_field
 520                         ),
 521                         SAMPLE_DIALOGS_TITLE,
 522                         sb->GetStatusText(m_field),
 523                         this
 524                    );
 525
 526     if ( txt.empty() )
 527         return;
 528
 529     sb->SetStatusText(txt, m_field);
 530 }
 531
 532 // the current depth of the stack used by Push/PopStatusText()
 533 static int gs_depth = 0;
 534
 535 void MyFrame::OnPushStatusText(wxCommandEvent& WXUNUSED(event))
 536 {
 537     wxStatusBar *sb = GetStatusBar();
 538     if (!sb)
 539         return;
 540
 541     static int s_countPush = 0;
 542     sb->PushStatusText(wxString::Format
 543                        (
 544                             "Pushed message #%d (depth = %d)",
 545                             ++s_countPush, ++gs_depth
 546                        ), m_field);
 547 }
 548
 549 void MyFrame::OnPopStatusText(wxCommandEvent& WXUNUSED(event))
 550 {
 551     wxStatusBar *sb = GetStatusBar();
 552     if (!sb)
 553         return;
 554
 555     if ( !gs_depth )
 556     {
 557         wxLogStatus("No message to pop.");
 558         return;
 559     }
 560
 561     gs_depth--;
 562     sb->PopStatusText(m_field);
 563 }
 564
 565 void MyFrame::OnSetStatusFont(wxCommandEvent& WXUNUSED(event))
 566 {
 567     wxStatusBar *sb = GetStatusBar();
 568     if (!sb)
 569         return;
 570
 571     wxFont
 572         fnt = wxGetFontFromUser(this, sb->GetFont(), "Choose status bar font");
 573     if (fnt.IsOk())
 574     {
 575         sb->SetFont(fnt);
 576         sb->SetSize(sb->GetBestSize());
 577     }
 578 }
 579
 580 void MyFrame::OnSetStatusFields(wxCommandEvent& WXUNUSED(event))
 581 {
 582     wxStatusBar *sb = GetStatusBar();
 583     if (!sb)
 584         return;
 585
 586     long nFields = wxGetNumberFromUser
 587                 (
 588                     wxT("Select the number of fields in the status bar"),
 589                     wxT("Fields:"),
 590                     SAMPLE_DIALOGS_TITLE,
 591                     sb->GetFieldsCount(),
 592                     1, 5,
 593                     this
 594                 );
 595
 596     // we don't check if the number changed at all on purpose: calling
 597     // SetFieldsCount() with the same number of fields should be ok
 598     if ( nFields != -1 )
 599     {
 600         static const int widthsFor2Fields[] = { 200, -1 };
 601         static const int widthsFor3Fields[] = { -1, -2, -1 };
 602         static const int widthsFor4Fields[] = { 100, -1, 100, -2, 100 };
 603
 604         static const int *widthsAll[] =
 605         {
 606             NULL,               // 1 field: default
 607             widthsFor2Fields,   // 2 fields: 1 fixed, 1 var
 608             widthsFor3Fields,   // 3 fields: 3 var
 609             widthsFor4Fields,   // 4 fields: 3 fixed, 2 vars
 610             NULL                // 5 fields: default (all have same width)
 611         };
 612
 613         const int * const widths = widthsAll[nFields - 1];
 614         sb->SetFieldsCount(nFields, widths);
 615
 616         wxString s;
 617         for ( long n = 0; n < nFields; n++ )
 618         {
 619             if ( widths )
 620             {
 621                 if ( widths[n] > 0 )
 622                     s.Printf(wxT("fixed (%d)"), widths[n]);
 623                 else
 624                     s.Printf(wxT("variable (*%d)"), -widths[n]);
 625             }
 626             else
 627             {
 628                 s = wxT("default");
 629             }
 630
 631             SetStatusText(s, n);
 632         }
 633
 634         if ( m_field >= nFields )
 635             m_field = nFields - 1;
 636     }
 637     else
 638     {
 639         wxLogStatus(this, wxT("Cancelled"));
 640     }
 641 }
 642
 643 void MyFrame::OnResetFieldsWidth(wxCommandEvent& WXUNUSED(event))
 644 {
 645     wxStatusBar *pStat = GetStatusBar();
 646     if ( !pStat )
 647         return;
 648
 649     const int n = pStat->GetFieldsCount();
 650     pStat->SetStatusWidths(n, NULL);
 651     for ( int i = 0; i < n; i++ )
 652         pStat->SetStatusText("same size", i);
 653 }
 654
 655 void MyFrame::OnShowFieldsRect(wxCommandEvent& WXUNUSED(event))
 656 {
 657     wxStatusBar *pStat = GetStatusBar();
 658     if ( !pStat )
 659         return;
 660
 661     wxClientDC dc(pStat);
 662     dc.SetPen(*wxRED_PEN);
 663     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 664
 665     const int n = pStat->GetFieldsCount();
 666     for ( int i = 0; i < n; i++ )
 667     {
 668         wxRect r;
 669         if ( pStat->GetFieldRect(i, r) )
 670             dc.DrawRectangle(r);
 671     }
 672 }
 673
 674 void MyFrame::OnUpdateStatusBarToggle(wxUpdateUIEvent& event)
 675 {
 676     event.Check(GetStatusBar() != NULL);
 677 }
 678
 679 void MyFrame::OnStatusBarToggle(wxCommandEvent& WXUNUSED(event))
 680 {
 681     wxStatusBar *statbarOld = GetStatusBar();
 682     if ( statbarOld )
 683     {
 684         SetStatusBar(NULL);
 685         delete statbarOld;
 686     }
 687     else
 688     {
 689         DoCreateStatusBar(m_statbarKind, wxSTB_DEFAULT_STYLE);
 690     }
 691 }
 692
 693 void MyFrame::OnRecreateStatusBar(wxCommandEvent& WXUNUSED(event))
 694 {
 695     DoCreateStatusBar(m_statbarKind == StatBar_Custom ? StatBar_Default
 696                                                       : StatBar_Custom,
 697                       wxSTB_DEFAULT_STYLE);
 698 }
 699
 700 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 701 {
 702     // true is to force the frame to close
 703     Close(true);
 704 }
 705
 706 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 707 {
 708     MyAboutDialog dlg(this);
 709     dlg.ShowModal();
 710 }
 711
 712 void MyFrame::OnUpdateSetPaneStyle(wxUpdateUIEvent& event)
 713 {
 714     switch (event.GetId())
 715     {
 716         case StatusBar_SetPaneStyleNormal:
 717             event.Check(m_statbarPaneStyle == wxSB_NORMAL);
 718             break;
 719         case StatusBar_SetPaneStyleFlat:
 720             event.Check(m_statbarPaneStyle == wxSB_FLAT);
 721             break;
 722         case StatusBar_SetPaneStyleRaised:
 723             event.Check(m_statbarPaneStyle == wxSB_RAISED);
 724             break;
 725     }
 726 }
 727
 728 void MyFrame::OnSetPaneStyle(wxCommandEvent& event)
 729 {
 730     switch (event.GetId())
 731     {
 732         case StatusBar_SetPaneStyleNormal:
 733             m_statbarPaneStyle = wxSB_NORMAL;
 734             break;
 735         case StatusBar_SetPaneStyleFlat:
 736             m_statbarPaneStyle = wxSB_FLAT;
 737             break;
 738         case StatusBar_SetPaneStyleRaised:
 739             m_statbarPaneStyle = wxSB_RAISED;
 740             break;
 741     }
 742
 743     ApplyPaneStyle();
 744 }
 745
 746 void MyFrame::ApplyPaneStyle()
 747 {
 748     wxStatusBar *sb = GetStatusBar();
 749     if (!sb)
 750         return;
 751
 752     int fields = sb->GetFieldsCount();
 753     int *styles = new int[fields];
 754
 755     for (int i = 1; i < fields; i++)
 756         styles[i] = wxSB_NORMAL;
 757
 758     styles[0] = m_statbarPaneStyle;
 759
 760     sb->SetStatusStyles(fields, styles);
 761
 762     delete [] styles;
 763 }
 764
 765 void MyFrame::OnUpdateSetStyle(wxUpdateUIEvent& event)
 766 {
 767     long currentStyle = wxSTB_DEFAULT_STYLE;
 768     if (GetStatusBar())
 769         currentStyle = GetStatusBar()->GetWindowStyle();
 770
 771     switch (event.GetId())
 772     {
 773         case StatusBar_SetStyleSizeGrip:
 774             event.Check((currentStyle & wxSTB_SIZEGRIP) != 0);
 775             break;
 776         case StatusBar_SetStyleShowTips:
 777             event.Check((currentStyle & wxSTB_SHOW_TIPS) != 0);
 778             break;
 779
 780         case StatusBar_SetStyleEllipsizeStart:
 781             event.Check((currentStyle & wxSTB_ELLIPSIZE_START) != 0);
 782             break;
 783         case StatusBar_SetStyleEllipsizeMiddle:
 784             event.Check((currentStyle & wxSTB_ELLIPSIZE_MIDDLE) != 0);
 785             break;
 786         case StatusBar_SetStyleEllipsizeEnd:
 787             event.Check((currentStyle & wxSTB_ELLIPSIZE_END) != 0);
 788             break;
 789     }
 790 }
 791
 792 void MyFrame::OnSetStyle(wxCommandEvent& event)
 793 {
 794     long oldStyle = wxSTB_DEFAULT_STYLE;
 795     if (GetStatusBar())
 796         oldStyle = GetStatusBar()->GetWindowStyle();
 797
 798     #define STB_ELLIPSIZE_MASK \
 799         (wxSTB_ELLIPSIZE_START|wxSTB_ELLIPSIZE_MIDDLE|wxSTB_ELLIPSIZE_END)
 800
 801     long newStyle = oldStyle;
 802     long newStyleBit = 0;
 803     switch (event.GetId())
 804     {
 805         case StatusBar_SetStyleSizeGrip:
 806             newStyleBit = wxSTB_SIZEGRIP;
 807             break;
 808         case StatusBar_SetStyleShowTips:
 809             newStyleBit = wxSTB_SHOW_TIPS;
 810             break;
 811
 812         case StatusBar_SetStyleEllipsizeStart:
 813             newStyleBit = wxSTB_ELLIPSIZE_START;
 814             newStyle &= ~STB_ELLIPSIZE_MASK;
 815             break;
 816         case StatusBar_SetStyleEllipsizeMiddle:
 817             newStyleBit = wxSTB_ELLIPSIZE_MIDDLE;
 818             newStyle &= ~STB_ELLIPSIZE_MASK;
 819             break;
 820         case StatusBar_SetStyleEllipsizeEnd:
 821             newStyleBit = wxSTB_ELLIPSIZE_END;
 822             newStyle &= ~STB_ELLIPSIZE_MASK;
 823             break;
 824     }
 825
 826     newStyle = event.IsChecked() ? (newStyle | newStyleBit) :
 827                                    (newStyle & ~newStyleBit);
 828     if (newStyle != oldStyle)
 829     {
 830         DoCreateStatusBar(m_statbarKind, newStyle);
 831         SetStatusText("Status bar recreated with a new style");
 832     }
 833 }
 834
 835 // ----------------------------------------------------------------------------
 836 // MyAboutDialog
 837 // ----------------------------------------------------------------------------
 838
 839 MyAboutDialog::MyAboutDialog(wxWindow *parent)
 840             : wxDialog(parent, wxID_ANY, wxString(wxT("About statbar")),
 841                         wxDefaultPosition, wxDefaultSize,
 842                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 843 {
 844     wxStaticText *text = new wxStaticText(this, wxID_ANY,
 845                                         wxT("wxStatusBar sample\n")
 846                                         wxT("(c) 2000 Vadim Zeitlin"));
 847
 848     wxButton *btn = new wxButton(this, wxID_OK, wxT("&Close"));
 849
 850     // create the top status bar without the size grip (default style),
 851     // otherwise it looks weird
 852     wxStatusBar *statbarTop = new wxStatusBar(this, wxID_ANY, 0);
 853     statbarTop->SetFieldsCount(3);
 854     statbarTop->SetStatusText(wxT("This is a top status bar"), 0);
 855     statbarTop->SetStatusText(wxT("in a dialog"), 1);
 856     statbarTop->SetStatusText(wxT("Great, isn't it?"), 2);
 857
 858     wxStatusBar *statbarBottom = new wxStatusBar(this, wxID_ANY);
 859     statbarBottom->SetFieldsCount(2);
 860     statbarBottom->SetStatusText(wxT("This is a bottom status bar"), 0);
 861     statbarBottom->SetStatusText(wxT("in a dialog"), 1);
 862
 863     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 864     sizerTop->Add(statbarTop, 0, wxGROW);
 865     sizerTop->Add(-1, 10, 1, wxGROW);
 866     sizerTop->Add(text, 0, wxCENTRE | wxRIGHT | wxLEFT, 20);
 867     sizerTop->Add(-1, 10, 1, wxGROW);
 868     sizerTop->Add(btn, 0, wxCENTRE | wxRIGHT | wxLEFT, 20);
 869     sizerTop->Add(-1, 10, 1, wxGROW);
 870     sizerTop->Add(statbarBottom, 0, wxGROW);
 871
 872     SetSizerAndFit(sizerTop);
 873 }
 874
 875 // ----------------------------------------------------------------------------
 876 // MyStatusBar
 877 // ----------------------------------------------------------------------------
 878
 879 #ifdef __VISUALC__
 880     // 'this' : used in base member initializer list -- so what??
 881     #pragma warning(disable: 4355)
 882 #endif
 883
 884 static const char *numlockIndicators[] = { "OFF", "NUM" };
 885 static const char *capslockIndicators[] = { "", "CAPS" };
 886
 887 MyStatusBar::MyStatusBar(wxWindow *parent, long style)
 888         : wxStatusBar(parent, wxID_ANY, style, "MyStatusBar")
 889 #if wxUSE_TIMER
 890             , m_timer(this)
 891 #endif
 892 #if wxUSE_CHECKBOX
 893             , m_checkbox(NULL)
 894 #endif
 895 {
 896     // compute the size needed for num lock indicator pane
 897     wxClientDC dc(this);
 898     wxSize sizeNumLock = dc.GetTextExtent(numlockIndicators[0]);
 899     sizeNumLock.IncTo(dc.GetTextExtent(numlockIndicators[1]));
 900
 901     int widths[Field_Max];
 902     widths[Field_Text] = -1; // growable
 903     widths[Field_Checkbox] = 150;
 904     widths[Field_Bitmap] = BITMAP_SIZE_X;
 905     widths[Field_NumLockIndicator] = sizeNumLock.x;
 906     widths[Field_Clock] = 100;
 907     widths[Field_CapsLockIndicator] = dc.GetTextExtent(capslockIndicators[1]).x;
 908
 909     SetFieldsCount(Field_Max);
 910     SetStatusWidths(Field_Max, widths);
 911
 912 #if wxUSE_CHECKBOX
 913     m_checkbox = new wxCheckBox(this, StatusBar_Checkbox, wxT("&Toggle clock"));
 914     m_checkbox->SetValue(true);
 915 #endif
 916
 917     m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxIcon(green_xpm));
 918
 919 #if wxUSE_TIMER
 920     m_timer.Start(1000);
 921 #endif
 922
 923     SetMinHeight(wxMax(m_statbmp->GetBestSize().GetHeight(),
 924                        m_checkbox->GetBestSize().GetHeight()));
 925
 926     UpdateClock();
 927 }
 928
 929 #ifdef __VISUALC__
 930     #pragma warning(default: 4355)
 931 #endif
 932
 933 MyStatusBar::~MyStatusBar()
 934 {
 935 #if wxUSE_TIMER
 936     if ( m_timer.IsRunning() )
 937     {
 938         m_timer.Stop();
 939     }
 940 #endif
 941 }
 942
 943 void MyStatusBar::OnSize(wxSizeEvent& event)
 944 {
 945 #if wxUSE_CHECKBOX
 946     if ( !m_checkbox )
 947         return;
 948 #endif
 949
 950     // TEMPORARY HACK: TODO find a more general solution
 951 #ifdef wxStatusBarGeneric
 952     wxStatusBar::OnSize(event);
 953 #endif
 954
 955     wxRect rect;
 956     if (!GetFieldRect(Field_Checkbox, rect))
 957     {
 958         event.Skip();
 959         return;
 960     }
 961
 962 #if wxUSE_CHECKBOX
 963     wxRect rectCheck = rect;
 964     rectCheck.Deflate(2);
 965     m_checkbox->SetSize(rectCheck);
 966 #endif
 967
 968     GetFieldRect(Field_Bitmap, rect);
 969     wxSize size = m_statbmp->GetSize();
 970
 971     m_statbmp->Move(rect.x + (rect.width - size.x) / 2,
 972                     rect.y + (rect.height - size.y) / 2);
 973
 974     event.Skip();
 975 }
 976
 977 void MyStatusBar::OnToggleClock(wxCommandEvent& WXUNUSED(event))
 978 {
 979     DoToggle();
 980 }
 981
 982 void MyStatusBar::OnIdle(wxIdleEvent& event)
 983 {
 984     SetStatusText(numlockIndicators[wxGetKeyState(WXK_NUMLOCK)],
 985                   Field_NumLockIndicator);
 986     SetStatusText(capslockIndicators[wxGetKeyState(WXK_CAPITAL)],
 987                   Field_CapsLockIndicator);
 988
 989     event.Skip();
 990 }
 991
 992 void MyStatusBar::DoToggle()
 993 {
 994 #if wxUSE_CHECKBOX
 995     if ( m_checkbox->GetValue() )
 996     {
 997 #if wxUSE_TIMER
 998         m_timer.Start(1000);
 999 #endif
1000
1001         m_statbmp->SetIcon(wxIcon(green_xpm));
1002
1003         UpdateClock();
1004     }
1005     else // don't show clock
1006     {
1007 #if wxUSE_TIMER
1008         m_timer.Stop();
1009 #endif
1010
1011         m_statbmp->SetIcon(wxIcon(red_xpm));
1012
1013         SetStatusText(wxEmptyString, Field_Clock);
1014     }
1015 #endif // wxUSE_CHECKBOX
1016 }
1017
1018 void MyStatusBar::UpdateClock()
1019 {
1020     SetStatusText(wxDateTime::Now().FormatTime(), Field_Clock);
1021 }