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
  58 // define this for the platforms which don't support wxBitmapButton (such as
  59 // Motif), else a wxBitmapButton will be used
  60 #ifdef __WXMOTIF__
  61     #define USE_STATIC_BITMAP
  62 #endif
  63
  64 //#define USE_MDI_PARENT_FRAME 1
  65
  66 #ifdef USE_MDI_PARENT_FRAME
  67     #include "wx/mdi.h"
  68 #endif // USE_MDI_PARENT_FRAME
  69
  70 static const char *SAMPLE_DIALOGS_TITLE = "wxWidgets statbar sample";
  71
  72 // ----------------------------------------------------------------------------
  73 // resources
  74 // ----------------------------------------------------------------------------
  75
  76 #ifdef USE_STATIC_BITMAP
  77     #include "green.xpm"
  78     #include "red.xpm"
  79 #endif // USE_STATIC_BITMAP
  80
  81 // ----------------------------------------------------------------------------
  82 // private classes
  83 // ----------------------------------------------------------------------------
  84
  85 // Define a new application type, each program should derive a class from wxApp
  86 class MyApp : public wxApp
  87 {
  88 public:
  89     // override base class virtuals
  90     // ----------------------------
  91
  92     // this one is called on application startup and is a good place for the app
  93     // initialization (doing it here and not in the ctor allows to have an error
  94     // return: if OnInit() returns false, the application terminates)
  95     virtual bool OnInit();
  96 };
  97
  98 // A custom status bar which contains controls, icons &c
  99 class MyStatusBar : public wxStatusBar
 100 {
 101 public:
 102     MyStatusBar(wxWindow *parent, long style = wxSTB_DEFAULT_STYLE);
 103     virtual ~MyStatusBar();
 104
 105     void UpdateClock();
 106
 107     // event handlers
 108 #if wxUSE_TIMER
 109     void OnTimer(wxTimerEvent& WXUNUSED(event)) { UpdateClock(); }
 110 #endif
 111     void OnSize(wxSizeEvent& event);
 112     void OnToggleClock(wxCommandEvent& event);
 113     void OnButton(wxCommandEvent& event);
 114
 115 private:
 116     // toggle the state of the status bar controls
 117     void DoToggle();
 118
 119     wxBitmap CreateBitmapForButton(bool on = false);
 120
 121     enum
 122     {
 123         Field_Text,
 124         Field_Checkbox,
 125         Field_Bitmap,
 126         Field_Clock,
 127         Field_Max
 128     };
 129
 130 #if wxUSE_TIMER
 131     wxTimer m_timer;
 132 #endif
 133
 134 #if wxUSE_CHECKBOX
 135     wxCheckBox *m_checkbox;
 136 #endif
 137 #ifdef USE_STATIC_BITMAP
 138     wxStaticBitmap *m_statbmp;
 139 #else
 140     wxBitmapButton *m_statbmp;
 141 #endif
 142
 143     DECLARE_EVENT_TABLE()
 144 };
 145
 146 // Define a new frame type: this is going to be our main frame
 147 #ifdef USE_MDI_PARENT_FRAME
 148 class MyFrame : public wxMDIParentFrame
 149 #else
 150 class MyFrame : public wxFrame
 151 #endif
 152 {
 153 public:
 154     // ctor(s)
 155     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
 156
 157     // event handlers (these functions should _not_ be virtual)
 158     void OnQuit(wxCommandEvent& event);
 159     void OnAbout(wxCommandEvent& event);
 160
 161     void OnSetStatusField(wxCommandEvent& event);
 162     void OnSetStatusText(wxCommandEvent& event);
 163     void OnPushStatusText(wxCommandEvent& event);
 164     void OnPopStatusText(wxCommandEvent& event);
 165
 166     void OnResetFieldsWidth(wxCommandEvent& event);
 167     void OnShowFieldsRect(wxCommandEvent& event);
 168     void OnSetStatusFields(wxCommandEvent& event);
 169     void OnSetStatusFont(wxCommandEvent& event);
 170     void OnRecreateStatusBar(wxCommandEvent& event);
 171
 172     void OnSetPaneStyle(wxCommandEvent& event);
 173     void OnSetStyle(wxCommandEvent& event);
 174
 175 private:
 176     enum StatusBarKind
 177     {
 178         StatBar_Default,
 179         StatBar_Custom,
 180         StatBar_Max
 181     } m_statbarKind;
 182
 183
 184     void OnUpdateForDefaultStatusbar(wxUpdateUIEvent& event);
 185     void OnUpdateStatusBarToggle(wxUpdateUIEvent& event);
 186     void OnUpdateSetPaneStyle(wxUpdateUIEvent& event);
 187     void OnUpdateSetStyle(wxUpdateUIEvent& event);
 188     void OnStatusBarToggle(wxCommandEvent& event);
 189     void DoCreateStatusBar(StatusBarKind kind, long style);
 190     void ApplyPaneStyle();
 191
 192     int m_statbarPaneStyle;
 193
 194     // the index of the field used by some commands
 195     int m_field;
 196
 197     // any class wishing to process wxWidgets events must use this macro
 198     DECLARE_EVENT_TABLE()
 199 };
 200
 201 // Our about dialog ith its status bar
 202 class MyAboutDialog : public wxDialog
 203 {
 204 public:
 205     MyAboutDialog(wxWindow *parent);
 206 };
 207
 208 // ----------------------------------------------------------------------------
 209 // constants
 210 // ----------------------------------------------------------------------------
 211
 212 // IDs for the controls and the menu commands
 213 enum
 214 {
 215     // menu items
 216     StatusBar_Quit = wxID_EXIT,
 217     StatusBar_About = wxID_ABOUT,
 218
 219     StatusBar_SetFields = wxID_HIGHEST+1,
 220     StatusBar_SetField,
 221     StatusBar_SetText,
 222     StatusBar_PushText,
 223     StatusBar_PopText,
 224     StatusBar_SetFont,
 225     StatusBar_ResetFieldsWidth,
 226     StatusBar_ShowFieldsRect,
 227
 228     StatusBar_Recreate,
 229     StatusBar_Toggle,
 230     StatusBar_Checkbox,
 231     StatusBar_SetPaneStyle,
 232     StatusBar_SetPaneStyleNormal,
 233     StatusBar_SetPaneStyleFlat,
 234     StatusBar_SetPaneStyleRaised,
 235
 236     StatusBar_SetStyleSizeGrip,
 237     StatusBar_SetStyleEllipsizeStart,
 238     StatusBar_SetStyleEllipsizeMiddle,
 239     StatusBar_SetStyleEllipsizeEnd,
 240     StatusBar_SetStyleShowTips
 241 };
 242
 243 static const int BITMAP_SIZE_X = 32;
 244 static const int BITMAP_SIZE_Y = 15;
 245
 246 // ----------------------------------------------------------------------------
 247 // event tables and other macros for wxWidgets
 248 // ----------------------------------------------------------------------------
 249
 250 // the event tables connect the wxWidgets events with the functions (event
 251 // handlers) which process them. It can be also done at run-time, but for the
 252 // simple menu events like this the static method is much simpler.
 253 #ifdef USE_MDI_PARENT_FRAME
 254 BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
 255 #else
 256 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 257 #endif
 258     EVT_MENU(StatusBar_Quit,  MyFrame::OnQuit)
 259     EVT_MENU(StatusBar_SetFields, MyFrame::OnSetStatusFields)
 260     EVT_MENU(StatusBar_SetField, MyFrame::OnSetStatusField)
 261     EVT_MENU(StatusBar_SetText, MyFrame::OnSetStatusText)
 262     EVT_MENU(StatusBar_PushText, MyFrame::OnPushStatusText)
 263     EVT_MENU(StatusBar_PopText, MyFrame::OnPopStatusText)
 264     EVT_MENU(StatusBar_SetFont, MyFrame::OnSetStatusFont)
 265     EVT_MENU(StatusBar_ResetFieldsWidth, MyFrame::OnResetFieldsWidth)
 266     EVT_MENU(StatusBar_ShowFieldsRect, MyFrame::OnShowFieldsRect)
 267     EVT_MENU(StatusBar_Recreate, MyFrame::OnRecreateStatusBar)
 268     EVT_MENU(StatusBar_About, MyFrame::OnAbout)
 269     EVT_MENU(StatusBar_Toggle, MyFrame::OnStatusBarToggle)
 270     EVT_MENU(StatusBar_SetPaneStyleNormal, MyFrame::OnSetPaneStyle)
 271     EVT_MENU(StatusBar_SetPaneStyleFlat, MyFrame::OnSetPaneStyle)
 272     EVT_MENU(StatusBar_SetPaneStyleRaised, MyFrame::OnSetPaneStyle)
 273
 274     EVT_MENU(StatusBar_SetStyleSizeGrip, MyFrame::OnSetStyle)
 275     EVT_MENU(StatusBar_SetStyleEllipsizeStart, MyFrame::OnSetStyle)
 276     EVT_MENU(StatusBar_SetStyleEllipsizeMiddle, MyFrame::OnSetStyle)
 277     EVT_MENU(StatusBar_SetStyleEllipsizeEnd, MyFrame::OnSetStyle)
 278     EVT_MENU(StatusBar_SetStyleShowTips, MyFrame::OnSetStyle)
 279
 280     EVT_UPDATE_UI_RANGE(StatusBar_SetFields, StatusBar_ResetFieldsWidth,
 281                         MyFrame::OnUpdateForDefaultStatusbar)
 282     EVT_UPDATE_UI(StatusBar_Toggle, MyFrame::OnUpdateStatusBarToggle)
 283     EVT_UPDATE_UI_RANGE(StatusBar_SetPaneStyleNormal,
 284                         StatusBar_SetPaneStyleRaised,
 285                         MyFrame::OnUpdateSetPaneStyle)
 286     EVT_UPDATE_UI_RANGE(StatusBar_SetStyleSizeGrip, StatusBar_SetStyleShowTips,
 287                         MyFrame::OnUpdateSetStyle)
 288 END_EVENT_TABLE()
 289
 290 BEGIN_EVENT_TABLE(MyStatusBar, wxStatusBar)
 291     EVT_SIZE(MyStatusBar::OnSize)
 292 #if wxUSE_CHECKBOX
 293     EVT_CHECKBOX(StatusBar_Checkbox, MyStatusBar::OnToggleClock)
 294 #endif
 295     EVT_BUTTON(wxID_ANY, MyStatusBar::OnButton)
 296 #if wxUSE_TIMER
 297     EVT_TIMER(wxID_ANY, MyStatusBar::OnTimer)
 298 #endif
 299 END_EVENT_TABLE()
 300
 301 // Create a new application object: this macro will allow wxWidgets to create
 302 // the application object during program execution (it's better than using a
 303 // static object for many reasons) and also declares the accessor function
 304 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 305 // not wxApp)
 306 IMPLEMENT_APP(MyApp)
 307
 308 // ============================================================================
 309 // implementation
 310 // ============================================================================
 311
 312 // ----------------------------------------------------------------------------
 313 // the application class
 314 // ----------------------------------------------------------------------------
 315
 316 // `Main program' equivalent: the program execution "starts" here
 317 bool MyApp::OnInit()
 318 {
 319     if ( !wxApp::OnInit() )
 320         return false;
 321
 322     // create the main application window
 323     MyFrame *frame = new MyFrame(wxT("wxStatusBar sample"),
 324                                  wxPoint(50, 50), wxSize(450, 340));
 325
 326     // and show it (the frames, unlike simple controls, are not shown when
 327     // created initially)
 328     frame->Show(true);
 329
 330     // success: wxApp::OnRun() will be called which will enter the main message
 331     // loop and the application will run. If we returned 'false' here, the
 332     // application would exit immediately.
 333     return true;
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // main frame
 338 // ----------------------------------------------------------------------------
 339
 340 // frame constructor
 341 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 342 #ifdef USE_MDI_PARENT_FRAME
 343     : wxMDIParentFrame(NULL, wxID_ANY, title, pos, size)
 344 #else
 345     : wxFrame(NULL, wxID_ANY, title, pos, size)
 346 #endif
 347 {
 348     SetIcon(wxICON(sample));
 349
 350     m_statbarPaneStyle = wxSB_NORMAL;
 351     m_field = 1;
 352
 353     // create a menu bar
 354     wxMenu *menuFile = new wxMenu;
 355     menuFile->Append(StatusBar_Quit, wxT("E&xit\tAlt-X"),
 356                      wxT("Quit this program"));
 357
 358     wxMenu *statbarMenu = new wxMenu;
 359
 360     wxMenu *statbarStyleMenu = new wxMenu;
 361     statbarStyleMenu->Append(StatusBar_SetStyleSizeGrip, wxT("wxSTB_SIZE_GRIP"),
 362                              wxT("Toggles the wxSTB_SIZE_GRIP style"), true);
 363     statbarStyleMenu->Append(StatusBar_SetStyleShowTips, wxT("wxSTB_SHOW_TIPS"),
 364                              wxT("Toggles the wxSTB_SHOW_TIPS style"), true);
 365     statbarStyleMenu->AppendSeparator();
 366     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeStart,
 367                                       wxT("wxSTB_ELLIPSIZE_START"),
 368                                       wxT("Toggle wxSTB_ELLIPSIZE_START style"));
 369     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeMiddle,
 370                                       wxT("wxSTB_ELLIPSIZE_MIDDLE"),
 371                                       wxT("Toggle wxSTB_ELLIPSIZE_MIDDLE style"));
 372     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeEnd,
 373                                       wxT("wxSTB_ELLIPSIZE_END"),
 374                                       wxT("Toggle wxSTB_ELLIPSIZE_END style"));
 375     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Status bar style"),
 376                         statbarStyleMenu);
 377     statbarMenu->AppendSeparator();
 378
 379     statbarMenu->Append(StatusBar_SetField, "Set active field &number\tCtrl-N",
 380                         "Set the number of field used by the next commands.");
 381     statbarMenu->Append(StatusBar_SetText, wxT("Set field &text\tCtrl-T"),
 382                         wxT("Set the text of the selected field."));
 383     statbarMenu->Append(StatusBar_PushText, "P&ush field text\tCtrl-P",
 384                         "Push a message on top the selected field.");
 385     statbarMenu->Append(StatusBar_PopText, "&Pop field text\tShift-Ctrl-P",
 386                         "Restore the previous contents of the selected field.");
 387     statbarMenu->AppendSeparator();
 388
 389     statbarMenu->Append(StatusBar_SetFields, wxT("&Set field count\tCtrl-C"),
 390                         wxT("Set the number of status bar fields"));
 391     statbarMenu->Append(StatusBar_SetFont, wxT("&Set field font\tCtrl-F"),
 392                         wxT("Set the font to use for status bar fields"));
 393
 394     wxMenu *statbarPaneStyleMenu = new wxMenu;
 395     statbarPaneStyleMenu->AppendCheckItem
 396         (
 397             StatusBar_SetPaneStyleNormal,
 398             wxT("&Normal"),
 399             wxT("Sets the style of the first field to normal (sunken) look")
 400         );
 401     statbarPaneStyleMenu->AppendCheckItem
 402         (
 403             StatusBar_SetPaneStyleFlat,
 404             wxT("&Flat"),
 405             wxT("Sets the style of the first field to flat look")
 406         );
 407     statbarPaneStyleMenu->AppendCheckItem
 408         (
 409             StatusBar_SetPaneStyleRaised,
 410             wxT("&Raised"),
 411             wxT("Sets the style of the first field to raised look")
 412         );
 413     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Field style"),
 414                         statbarPaneStyleMenu);
 415
 416     statbarMenu->Append(StatusBar_ResetFieldsWidth, wxT("Reset field widths"),
 417                         wxT("Sets all fields to the same width"));
 418     statbarMenu->Append(StatusBar_ShowFieldsRect,
 419                         wxT("Sho&w field rectangles\tCtrl-W"),
 420                         wxT("Visually show field rectangles"));
 421     statbarMenu->AppendSeparator();
 422
 423     statbarMenu->AppendCheckItem(StatusBar_Toggle, wxT("&Toggle Status Bar"),
 424                                  wxT("Toggle the status bar display"));
 425     statbarMenu->Append(StatusBar_Recreate, wxT("&Recreate\tCtrl-R"),
 426                         wxT("Toggle status bar format"));
 427
 428     wxMenu *helpMenu = new wxMenu;
 429     helpMenu->Append(StatusBar_About, wxT("&About...\tCtrl-A"),
 430                      wxT("Show about dialog"));
 431
 432     // now append the freshly created menu to the menu bar...
 433     wxMenuBar *menuBar = new wxMenuBar();
 434     menuBar->Append(menuFile, wxT("&File"));
 435     menuBar->Append(statbarMenu, wxT("&Status bar"));
 436     menuBar->Append(helpMenu, wxT("&Help"));
 437
 438     // ... and attach this menu bar to the frame
 439     SetMenuBar(menuBar);
 440
 441     // create default status bar to start with
 442     DoCreateStatusBar(StatBar_Default, wxSTB_DEFAULT_STYLE);
 443     SetStatusText(wxT("Welcome to wxWidgets!"));
 444 }
 445
 446 void MyFrame::DoCreateStatusBar(MyFrame::StatusBarKind kind, long style)
 447 {
 448     wxStatusBar *statbarOld = GetStatusBar();
 449     if ( statbarOld )
 450     {
 451         SetStatusBar(NULL);
 452         delete statbarOld;
 453     }
 454
 455     wxStatusBar *statbarNew = NULL;
 456     switch ( kind )
 457     {
 458         case StatBar_Default:
 459             statbarNew = new wxStatusBar(this, wxID_ANY, style, "wxStatusBar");
 460             statbarNew->SetFieldsCount(2);
 461             break;
 462
 463         case StatBar_Custom:
 464             statbarNew = new MyStatusBar(this, style);
 465             break;
 466
 467         default:
 468             wxFAIL_MSG(wxT("unknown status bar kind"));
 469     }
 470
 471     SetStatusBar(statbarNew);
 472     ApplyPaneStyle();
 473     PositionStatusBar();
 474
 475     m_statbarKind = kind;
 476 }
 477
 478
 479 // ----------------------------------------------------------------------------
 480 // main frame - event handlers
 481 // ----------------------------------------------------------------------------
 482
 483 void MyFrame::OnUpdateForDefaultStatusbar(wxUpdateUIEvent& event)
 484 {
 485     // only allow this feature for the default status bar
 486     wxStatusBar *sb = GetStatusBar();
 487     if (!sb)
 488         return;
 489
 490     event.Enable(sb->GetName() == "wxStatusBar");
 491 }
 492
 493 void MyFrame::OnSetStatusField(wxCommandEvent& WXUNUSED(event))
 494 {
 495     wxStatusBar *sb = GetStatusBar();
 496     if (!sb)
 497         return;
 498
 499     long rc = wxGetNumberFromUser
 500               (
 501                 "Configure the field index to be used by the set, push "
 502                 "and pop text commands in the menu.\n"
 503                 "\n"
 504                 "0 corresponds to the first field, 1 to the second one "
 505                 "and so on.",
 506                 "Field &index:",
 507                 SAMPLE_DIALOGS_TITLE,
 508                 m_field,
 509                 0,
 510                 sb->GetFieldsCount() - 1,
 511                 NULL
 512               );
 513
 514     if ( rc == -1 )
 515         return;
 516
 517     m_field = rc;
 518
 519     wxLogStatus("Status bar text will be set for field #%d", m_field);
 520 }
 521
 522 void MyFrame::OnSetStatusText(wxCommandEvent& WXUNUSED(event))
 523 {
 524     wxStatusBar *sb = GetStatusBar();
 525     if (!sb)
 526         return;
 527
 528     wxString txt = wxGetTextFromUser
 529                    (
 530                         wxString::Format
 531                         (
 532                             "Enter the text from for the field #%d",
 533                             m_field
 534                         ),
 535                         SAMPLE_DIALOGS_TITLE,
 536                         sb->GetStatusText(m_field),
 537                         this
 538                    );
 539
 540     if ( txt.empty() )
 541         return;
 542
 543     sb->SetStatusText(txt, m_field);
 544 }
 545
 546 // the current depth of the stack used by Push/PopStatusText()
 547 static int gs_depth = 0;
 548
 549 void MyFrame::OnPushStatusText(wxCommandEvent& WXUNUSED(event))
 550 {
 551     wxStatusBar *sb = GetStatusBar();
 552     if (!sb)
 553         return;
 554
 555     static int s_countPush = 0;
 556     sb->PushStatusText(wxString::Format
 557                        (
 558                             "Pushed message #%d (depth = %d)",
 559                             ++s_countPush, ++gs_depth
 560                        ), m_field);
 561 }
 562
 563 void MyFrame::OnPopStatusText(wxCommandEvent& WXUNUSED(event))
 564 {
 565     wxStatusBar *sb = GetStatusBar();
 566     if (!sb)
 567         return;
 568
 569     if ( !gs_depth )
 570     {
 571         wxLogStatus("No message to pop.");
 572         return;
 573     }
 574
 575     gs_depth--;
 576     sb->PopStatusText(m_field);
 577 }
 578
 579 void MyFrame::OnSetStatusFont(wxCommandEvent& WXUNUSED(event))
 580 {
 581     wxStatusBar *sb = GetStatusBar();
 582     if (!sb)
 583         return;
 584
 585     wxFont
 586         fnt = wxGetFontFromUser(this, sb->GetFont(), "Choose status bar font");
 587     if (fnt.IsOk())
 588     {
 589         sb->SetFont(fnt);
 590         sb->SetSize(sb->GetBestSize());
 591     }
 592 }
 593
 594 void MyFrame::OnSetStatusFields(wxCommandEvent& WXUNUSED(event))
 595 {
 596     wxStatusBar *sb = GetStatusBar();
 597     if (!sb)
 598         return;
 599
 600     long nFields = wxGetNumberFromUser
 601                 (
 602                     wxT("Select the number of fields in the status bar"),
 603                     wxT("Fields:"),
 604                     SAMPLE_DIALOGS_TITLE,
 605                     sb->GetFieldsCount(),
 606                     1, 5,
 607                     this
 608                 );
 609
 610     // we don't check if the number changed at all on purpose: calling
 611     // SetFieldsCount() with the same number of fields should be ok
 612     if ( nFields != -1 )
 613     {
 614         static const int widthsFor2Fields[] = { 200, -1 };
 615         static const int widthsFor3Fields[] = { -1, -2, -1 };
 616         static const int widthsFor4Fields[] = { 100, -1, 100, -2, 100 };
 617
 618         static const int *widthsAll[] =
 619         {
 620             NULL,               // 1 field: default
 621             widthsFor2Fields,   // 2 fields: 1 fixed, 1 var
 622             widthsFor3Fields,   // 3 fields: 3 var
 623             widthsFor4Fields,   // 4 fields: 3 fixed, 2 vars
 624             NULL                // 5 fields: default (all have same width)
 625         };
 626
 627         const int * const widths = widthsAll[nFields - 1];
 628         sb->SetFieldsCount(nFields, widths);
 629
 630         wxString s;
 631         for ( long n = 0; n < nFields; n++ )
 632         {
 633             if ( widths )
 634             {
 635                 if ( widths[n] > 0 )
 636                     s.Printf(wxT("fixed (%d)"), widths[n]);
 637                 else
 638                     s.Printf(wxT("variable (*%d)"), -widths[n]);
 639             }
 640             else
 641             {
 642                 s = wxT("default");
 643             }
 644
 645             SetStatusText(s, n);
 646         }
 647
 648         if ( m_field >= nFields )
 649             m_field = nFields - 1;
 650     }
 651     else
 652     {
 653         wxLogStatus(this, wxT("Cancelled"));
 654     }
 655 }
 656
 657 void MyFrame::OnResetFieldsWidth(wxCommandEvent& WXUNUSED(event))
 658 {
 659     wxStatusBar *pStat = GetStatusBar();
 660     if ( !pStat )
 661         return;
 662
 663     const int n = pStat->GetFieldsCount();
 664     pStat->SetStatusWidths(n, NULL);
 665     for ( int i = 0; i < n; i++ )
 666         pStat->SetStatusText("same size", i);
 667 }
 668
 669 void MyFrame::OnShowFieldsRect(wxCommandEvent& WXUNUSED(event))
 670 {
 671     wxStatusBar *pStat = GetStatusBar();
 672     if ( !pStat )
 673         return;
 674
 675     wxClientDC dc(pStat);
 676     dc.SetPen(*wxRED_PEN);
 677     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 678
 679     const int n = pStat->GetFieldsCount();
 680     for ( int i = 0; i < n; i++ )
 681     {
 682         wxRect r;
 683         if ( pStat->GetFieldRect(i, r) )
 684             dc.DrawRectangle(r);
 685     }
 686 }
 687
 688 void MyFrame::OnUpdateStatusBarToggle(wxUpdateUIEvent& event)
 689 {
 690     event.Check(GetStatusBar() != NULL);
 691 }
 692
 693 void MyFrame::OnStatusBarToggle(wxCommandEvent& WXUNUSED(event))
 694 {
 695     wxStatusBar *statbarOld = GetStatusBar();
 696     if ( statbarOld )
 697     {
 698         SetStatusBar(NULL);
 699         delete statbarOld;
 700     }
 701     else
 702     {
 703         DoCreateStatusBar(m_statbarKind, wxSTB_DEFAULT_STYLE);
 704     }
 705 }
 706
 707 void MyFrame::OnRecreateStatusBar(wxCommandEvent& WXUNUSED(event))
 708 {
 709     DoCreateStatusBar(m_statbarKind == StatBar_Custom ? StatBar_Default
 710                                                       : StatBar_Custom,
 711                       wxSTB_DEFAULT_STYLE);
 712 }
 713
 714 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 715 {
 716     // true is to force the frame to close
 717     Close(true);
 718 }
 719
 720 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 721 {
 722     MyAboutDialog dlg(this);
 723     dlg.ShowModal();
 724 }
 725
 726 void MyFrame::OnUpdateSetPaneStyle(wxUpdateUIEvent& event)
 727 {
 728     switch (event.GetId())
 729     {
 730         case StatusBar_SetPaneStyleNormal:
 731             event.Check(m_statbarPaneStyle == wxSB_NORMAL);
 732             break;
 733         case StatusBar_SetPaneStyleFlat:
 734             event.Check(m_statbarPaneStyle == wxSB_FLAT);
 735             break;
 736         case StatusBar_SetPaneStyleRaised:
 737             event.Check(m_statbarPaneStyle == wxSB_RAISED);
 738             break;
 739     }
 740 }
 741
 742 void MyFrame::OnSetPaneStyle(wxCommandEvent& event)
 743 {
 744     switch (event.GetId())
 745     {
 746         case StatusBar_SetPaneStyleNormal:
 747             m_statbarPaneStyle = wxSB_NORMAL;
 748             break;
 749         case StatusBar_SetPaneStyleFlat:
 750             m_statbarPaneStyle = wxSB_FLAT;
 751             break;
 752         case StatusBar_SetPaneStyleRaised:
 753             m_statbarPaneStyle = wxSB_RAISED;
 754             break;
 755     }
 756
 757     ApplyPaneStyle();
 758 }
 759
 760 void MyFrame::ApplyPaneStyle()
 761 {
 762     wxStatusBar *sb = GetStatusBar();
 763     if (!sb)
 764         return;
 765
 766     int fields = sb->GetFieldsCount();
 767     int *styles = new int[fields];
 768
 769     for (int i = 1; i < fields; i++)
 770         styles[i] = wxSB_NORMAL;
 771
 772     styles[0] = m_statbarPaneStyle;
 773
 774     sb->SetStatusStyles(fields, styles);
 775
 776     delete [] styles;
 777 }
 778
 779 void MyFrame::OnUpdateSetStyle(wxUpdateUIEvent& event)
 780 {
 781     long currentStyle = wxSTB_DEFAULT_STYLE;
 782     if (GetStatusBar())
 783         currentStyle = GetStatusBar()->GetWindowStyle();
 784
 785     switch (event.GetId())
 786     {
 787         case StatusBar_SetStyleSizeGrip:
 788             event.Check((currentStyle & wxSTB_SIZEGRIP) != 0);
 789             break;
 790         case StatusBar_SetStyleShowTips:
 791             event.Check((currentStyle & wxSTB_SHOW_TIPS) != 0);
 792             break;
 793
 794         case StatusBar_SetStyleEllipsizeStart:
 795             event.Check((currentStyle & wxSTB_ELLIPSIZE_START) != 0);
 796             break;
 797         case StatusBar_SetStyleEllipsizeMiddle:
 798             event.Check((currentStyle & wxSTB_ELLIPSIZE_MIDDLE) != 0);
 799             break;
 800         case StatusBar_SetStyleEllipsizeEnd:
 801             event.Check((currentStyle & wxSTB_ELLIPSIZE_END) != 0);
 802             break;
 803     }
 804 }
 805
 806 void MyFrame::OnSetStyle(wxCommandEvent& event)
 807 {
 808     long oldStyle = wxSTB_DEFAULT_STYLE;
 809     if (GetStatusBar())
 810         oldStyle = GetStatusBar()->GetWindowStyle();
 811
 812     #define STB_ELLIPSIZE_MASK \
 813         (wxSTB_ELLIPSIZE_START|wxSTB_ELLIPSIZE_MIDDLE|wxSTB_ELLIPSIZE_END)
 814
 815     long newStyle = oldStyle;
 816     long newStyleBit = 0;
 817     switch (event.GetId())
 818     {
 819         case StatusBar_SetStyleSizeGrip:
 820             newStyleBit = wxSTB_SIZEGRIP;
 821             break;
 822         case StatusBar_SetStyleShowTips:
 823             newStyleBit = wxSTB_SHOW_TIPS;
 824             break;
 825
 826         case StatusBar_SetStyleEllipsizeStart:
 827             newStyleBit = wxSTB_ELLIPSIZE_START;
 828             newStyle &= ~STB_ELLIPSIZE_MASK;
 829             break;
 830         case StatusBar_SetStyleEllipsizeMiddle:
 831             newStyleBit = wxSTB_ELLIPSIZE_MIDDLE;
 832             newStyle &= ~STB_ELLIPSIZE_MASK;
 833             break;
 834         case StatusBar_SetStyleEllipsizeEnd:
 835             newStyleBit = wxSTB_ELLIPSIZE_END;
 836             newStyle &= ~STB_ELLIPSIZE_MASK;
 837             break;
 838     }
 839
 840     newStyle = event.IsChecked() ? (newStyle | newStyleBit) :
 841                                    (newStyle & ~newStyleBit);
 842     if (newStyle != oldStyle)
 843     {
 844         DoCreateStatusBar(m_statbarKind, newStyle);
 845         SetStatusText("Status bar recreated with a new style");
 846     }
 847 }
 848
 849 // ----------------------------------------------------------------------------
 850 // MyAboutDialog
 851 // ----------------------------------------------------------------------------
 852
 853 MyAboutDialog::MyAboutDialog(wxWindow *parent)
 854             : wxDialog(parent, wxID_ANY, wxString(wxT("About statbar")),
 855                         wxDefaultPosition, wxDefaultSize,
 856                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 857 {
 858     wxStaticText *text = new wxStaticText(this, wxID_ANY,
 859                                         wxT("wxStatusBar sample\n")
 860                                         wxT("(c) 2000 Vadim Zeitlin"));
 861
 862     wxButton *btn = new wxButton(this, wxID_OK, wxT("&Close"));
 863
 864     // create the top status bar without the size grip (default style),
 865     // otherwise it looks weird
 866     wxStatusBar *statbarTop = new wxStatusBar(this, wxID_ANY, 0);
 867     statbarTop->SetFieldsCount(3);
 868     statbarTop->SetStatusText(wxT("This is a top status bar"), 0);
 869     statbarTop->SetStatusText(wxT("in a dialog"), 1);
 870     statbarTop->SetStatusText(wxT("Great, isn't it?"), 2);
 871
 872     wxStatusBar *statbarBottom = new wxStatusBar(this, wxID_ANY);
 873     statbarBottom->SetFieldsCount(2);
 874     statbarBottom->SetStatusText(wxT("This is a bottom status bar"), 0);
 875     statbarBottom->SetStatusText(wxT("in a dialog"), 1);
 876
 877     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 878     sizerTop->Add(statbarTop, 0, wxGROW);
 879     sizerTop->Add(-1, 10, 1, wxGROW);
 880     sizerTop->Add(text, 0, wxCENTRE | wxRIGHT | wxLEFT, 20);
 881     sizerTop->Add(-1, 10, 1, wxGROW);
 882     sizerTop->Add(btn, 0, wxCENTRE | wxRIGHT | wxLEFT, 20);
 883     sizerTop->Add(-1, 10, 1, wxGROW);
 884     sizerTop->Add(statbarBottom, 0, wxGROW);
 885
 886     SetSizerAndFit(sizerTop);
 887 }
 888
 889 // ----------------------------------------------------------------------------
 890 // MyStatusBar
 891 // ----------------------------------------------------------------------------
 892
 893 #ifdef __VISUALC__
 894     // 'this' : used in base member initializer list -- so what??
 895     #pragma warning(disable: 4355)
 896 #endif
 897
 898 MyStatusBar::MyStatusBar(wxWindow *parent, long style)
 899         : wxStatusBar(parent, wxID_ANY, style, "MyStatusBar")
 900 #if wxUSE_TIMER
 901             , m_timer(this)
 902 #endif
 903 #if wxUSE_CHECKBOX
 904             , m_checkbox(NULL)
 905 #endif
 906 {
 907     static const int widths[Field_Max] = { -1, 150, BITMAP_SIZE_X, 100 };
 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 #ifdef USE_STATIC_BITMAP
 918     m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxIcon(green_xpm));
 919 #else
 920     m_statbmp = new wxBitmapButton(this, wxID_ANY, CreateBitmapForButton(),
 921                                 wxDefaultPosition, wxDefaultSize,
 922                                 wxBU_EXACTFIT);
 923 #endif
 924
 925 #if wxUSE_TIMER
 926     m_timer.Start(1000);
 927 #endif
 928
 929     SetMinHeight(wxMax(m_statbmp->GetBestSize().GetHeight(),
 930                        m_checkbox->GetBestSize().GetHeight()));
 931
 932     UpdateClock();
 933 }
 934
 935 #ifdef __VISUALC__
 936     #pragma warning(default: 4355)
 937 #endif
 938
 939 MyStatusBar::~MyStatusBar()
 940 {
 941 #if wxUSE_TIMER
 942     if ( m_timer.IsRunning() )
 943     {
 944         m_timer.Stop();
 945     }
 946 #endif
 947 }
 948
 949 #define BMP_BUTTON_SIZE_X  10
 950 #define BMP_BUTTON_SIZE_Y  10
 951
 952 wxBitmap MyStatusBar::CreateBitmapForButton(bool on)
 953 {
 954     wxBitmap bitmap(BMP_BUTTON_SIZE_X+1, BMP_BUTTON_SIZE_Y+1);
 955     wxMemoryDC dc;
 956     dc.SelectObject(bitmap);
 957     dc.SetBrush(on ? *wxGREEN_BRUSH : *wxRED_BRUSH);
 958     dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 959     dc.Clear();
 960     dc.DrawEllipse(0, 0, BMP_BUTTON_SIZE_X, BMP_BUTTON_SIZE_Y);
 961     dc.SelectObject(wxNullBitmap);
 962
 963     return bitmap;
 964 }
 965
 966 void MyStatusBar::OnSize(wxSizeEvent& event)
 967 {
 968 #if wxUSE_CHECKBOX
 969     if ( !m_checkbox )
 970         return;
 971 #endif
 972
 973     // TEMPORARY HACK: TODO find a more general solution
 974 #ifdef wxStatusBarGeneric
 975     wxStatusBar::OnSize(event);
 976 #endif
 977
 978     wxRect rect;
 979     if (!GetFieldRect(Field_Checkbox, rect))
 980     {
 981         event.Skip();
 982         return;
 983     }
 984
 985 #if wxUSE_CHECKBOX
 986     wxRect rectCheck = rect;
 987     rectCheck.Deflate(2);
 988     m_checkbox->SetSize(rectCheck);
 989 #endif
 990
 991     GetFieldRect(Field_Bitmap, rect);
 992     wxSize size = m_statbmp->GetSize();
 993
 994     m_statbmp->Move(rect.x + (rect.width - size.x) / 2,
 995                     rect.y + (rect.height - size.y) / 2);
 996
 997     event.Skip();
 998 }
 999
1000 void MyStatusBar::OnButton(wxCommandEvent& WXUNUSED(event))
1001 {
1002 #if wxUSE_CHECKBOX
1003     m_checkbox->SetValue(!m_checkbox->GetValue());
1004 #endif
1005
1006     DoToggle();
1007 }
1008
1009 void MyStatusBar::OnToggleClock(wxCommandEvent& WXUNUSED(event))
1010 {
1011     DoToggle();
1012 }
1013
1014 void MyStatusBar::DoToggle()
1015 {
1016 #if wxUSE_CHECKBOX
1017     if ( m_checkbox->GetValue() )
1018     {
1019 #if wxUSE_TIMER
1020         m_timer.Start(1000);
1021 #endif
1022
1023 #ifdef USE_STATIC_BITMAP
1024         m_statbmp->SetIcon(wxIcon(green_xpm));
1025 #else
1026         m_statbmp->SetBitmapLabel(CreateBitmapForButton(false));
1027         m_statbmp->Refresh();
1028 #endif
1029
1030         UpdateClock();
1031     }
1032     else // don't show clock
1033     {
1034 #if wxUSE_TIMER
1035         m_timer.Stop();
1036 #endif
1037
1038 #ifdef USE_STATIC_BITMAP
1039         m_statbmp->SetIcon(wxIcon(red_xpm));
1040 #else
1041         m_statbmp->SetBitmapLabel(CreateBitmapForButton(true));
1042         m_statbmp->Refresh();
1043 #endif
1044
1045         SetStatusText(wxEmptyString, Field_Clock);
1046     }
1047 #endif
1048 }
1049
1050 void MyStatusBar::UpdateClock()
1051 {
1052     SetStatusText(wxDateTime::Now().FormatTime(), Field_Clock);
1053 }