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 wxHAS_IMAGES_IN_RESOURCES
  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     StatusBar_SetPaneStyleSunken,
 222
 223     StatusBar_SetStyleSizeGrip,
 224     StatusBar_SetStyleEllipsizeStart,
 225     StatusBar_SetStyleEllipsizeMiddle,
 226     StatusBar_SetStyleEllipsizeEnd,
 227     StatusBar_SetStyleShowTips
 228 };
 229
 230 static const int BITMAP_SIZE_X = 32;
 231 static const int BITMAP_SIZE_Y = 15;
 232
 233 // ----------------------------------------------------------------------------
 234 // event tables and other macros for wxWidgets
 235 // ----------------------------------------------------------------------------
 236
 237 // the event tables connect the wxWidgets events with the functions (event
 238 // handlers) which process them. It can be also done at run-time, but for the
 239 // simple menu events like this the static method is much simpler.
 240 #ifdef USE_MDI_PARENT_FRAME
 241 BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
 242 #else
 243 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 244 #endif
 245     EVT_MENU(StatusBar_Quit,  MyFrame::OnQuit)
 246     EVT_MENU(StatusBar_SetFields, MyFrame::OnSetStatusFields)
 247     EVT_MENU(StatusBar_SetField, MyFrame::OnSetStatusField)
 248     EVT_MENU(StatusBar_SetText, MyFrame::OnSetStatusText)
 249     EVT_MENU(StatusBar_PushText, MyFrame::OnPushStatusText)
 250     EVT_MENU(StatusBar_PopText, MyFrame::OnPopStatusText)
 251     EVT_MENU(StatusBar_SetFont, MyFrame::OnSetStatusFont)
 252     EVT_MENU(StatusBar_ResetFieldsWidth, MyFrame::OnResetFieldsWidth)
 253     EVT_MENU(StatusBar_ShowFieldsRect, MyFrame::OnShowFieldsRect)
 254     EVT_MENU(StatusBar_Recreate, MyFrame::OnRecreateStatusBar)
 255     EVT_MENU(StatusBar_About, MyFrame::OnAbout)
 256     EVT_MENU(StatusBar_Toggle, MyFrame::OnStatusBarToggle)
 257     EVT_MENU(StatusBar_SetPaneStyleNormal, MyFrame::OnSetPaneStyle)
 258     EVT_MENU(StatusBar_SetPaneStyleFlat, MyFrame::OnSetPaneStyle)
 259     EVT_MENU(StatusBar_SetPaneStyleRaised, MyFrame::OnSetPaneStyle)
 260     EVT_MENU(StatusBar_SetPaneStyleSunken, MyFrame::OnSetPaneStyle)
 261
 262     EVT_MENU(StatusBar_SetStyleSizeGrip, MyFrame::OnSetStyle)
 263     EVT_MENU(StatusBar_SetStyleEllipsizeStart, MyFrame::OnSetStyle)
 264     EVT_MENU(StatusBar_SetStyleEllipsizeMiddle, MyFrame::OnSetStyle)
 265     EVT_MENU(StatusBar_SetStyleEllipsizeEnd, MyFrame::OnSetStyle)
 266     EVT_MENU(StatusBar_SetStyleShowTips, MyFrame::OnSetStyle)
 267
 268     EVT_UPDATE_UI_RANGE(StatusBar_SetFields, StatusBar_ResetFieldsWidth,
 269                         MyFrame::OnUpdateForDefaultStatusbar)
 270     EVT_UPDATE_UI(StatusBar_Toggle, MyFrame::OnUpdateStatusBarToggle)
 271     EVT_UPDATE_UI_RANGE(StatusBar_SetPaneStyleNormal,
 272                         StatusBar_SetPaneStyleSunken,
 273                         MyFrame::OnUpdateSetPaneStyle)
 274     EVT_UPDATE_UI_RANGE(StatusBar_SetStyleSizeGrip, StatusBar_SetStyleShowTips,
 275                         MyFrame::OnUpdateSetStyle)
 276 END_EVENT_TABLE()
 277
 278 BEGIN_EVENT_TABLE(MyStatusBar, wxStatusBar)
 279     EVT_SIZE(MyStatusBar::OnSize)
 280 #if wxUSE_CHECKBOX
 281     EVT_CHECKBOX(StatusBar_Checkbox, MyStatusBar::OnToggleClock)
 282 #endif
 283 #if wxUSE_TIMER
 284     EVT_TIMER(wxID_ANY, MyStatusBar::OnTimer)
 285 #endif
 286     EVT_IDLE(MyStatusBar::OnIdle)
 287 END_EVENT_TABLE()
 288
 289 // Create a new application object: this macro will allow wxWidgets to create
 290 // the application object during program execution (it's better than using a
 291 // static object for many reasons) and also declares the accessor function
 292 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 293 // not wxApp)
 294 IMPLEMENT_APP(MyApp)
 295
 296 // ============================================================================
 297 // implementation
 298 // ============================================================================
 299
 300 // ----------------------------------------------------------------------------
 301 // the application class
 302 // ----------------------------------------------------------------------------
 303
 304 // `Main program' equivalent: the program execution "starts" here
 305 bool MyApp::OnInit()
 306 {
 307     if ( !wxApp::OnInit() )
 308         return false;
 309
 310     // create the main application window
 311     MyFrame *frame = new MyFrame(wxT("wxStatusBar sample"),
 312                                  wxPoint(50, 50), wxSize(450, 340));
 313
 314     // and show it (the frames, unlike simple controls, are not shown when
 315     // created initially)
 316     frame->Show(true);
 317
 318     // success: wxApp::OnRun() will be called which will enter the main message
 319     // loop and the application will run. If we returned 'false' here, the
 320     // application would exit immediately.
 321     return true;
 322 }
 323
 324 // ----------------------------------------------------------------------------
 325 // main frame
 326 // ----------------------------------------------------------------------------
 327
 328 // frame constructor
 329 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 330 #ifdef USE_MDI_PARENT_FRAME
 331     : wxMDIParentFrame(NULL, wxID_ANY, title, pos, size)
 332 #else
 333     : wxFrame(NULL, wxID_ANY, title, pos, size)
 334 #endif
 335 {
 336     SetIcon(wxICON(sample));
 337
 338     m_statbarPaneStyle = wxSB_NORMAL;
 339     m_field = 1;
 340
 341     // create a menu bar
 342     wxMenu *menuFile = new wxMenu;
 343     menuFile->Append(StatusBar_Quit, wxT("E&xit\tAlt-X"),
 344                      wxT("Quit this program"));
 345
 346     wxMenu *statbarMenu = new wxMenu;
 347
 348     wxMenu *statbarStyleMenu = new wxMenu;
 349     statbarStyleMenu->Append(StatusBar_SetStyleSizeGrip, wxT("wxSTB_SIZE_GRIP"),
 350                              wxT("Toggles the wxSTB_SIZE_GRIP style"), true);
 351     statbarStyleMenu->Append(StatusBar_SetStyleShowTips, wxT("wxSTB_SHOW_TIPS"),
 352                              wxT("Toggles the wxSTB_SHOW_TIPS style"), true);
 353     statbarStyleMenu->AppendSeparator();
 354     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeStart,
 355                                       wxT("wxSTB_ELLIPSIZE_START"),
 356                                       wxT("Toggle wxSTB_ELLIPSIZE_START style"));
 357     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeMiddle,
 358                                       wxT("wxSTB_ELLIPSIZE_MIDDLE"),
 359                                       wxT("Toggle wxSTB_ELLIPSIZE_MIDDLE style"));
 360     statbarStyleMenu->AppendCheckItem(StatusBar_SetStyleEllipsizeEnd,
 361                                       wxT("wxSTB_ELLIPSIZE_END"),
 362                                       wxT("Toggle wxSTB_ELLIPSIZE_END style"));
 363     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Status bar style"),
 364                         statbarStyleMenu);
 365     statbarMenu->AppendSeparator();
 366
 367     statbarMenu->Append(StatusBar_SetField, "Set active field &number\tCtrl-N",
 368                         "Set the number of field used by the next commands.");
 369     statbarMenu->Append(StatusBar_SetText, wxT("Set field &text\tCtrl-T"),
 370                         wxT("Set the text of the selected field."));
 371     statbarMenu->Append(StatusBar_PushText, "P&ush field text\tCtrl-P",
 372                         "Push a message on top the selected field.");
 373     statbarMenu->Append(StatusBar_PopText, "&Pop field text\tShift-Ctrl-P",
 374                         "Restore the previous contents of the selected field.");
 375     statbarMenu->AppendSeparator();
 376
 377     statbarMenu->Append(StatusBar_SetFields, wxT("&Set field count\tCtrl-C"),
 378                         wxT("Set the number of status bar fields"));
 379     statbarMenu->Append(StatusBar_SetFont, wxT("&Set field font\tCtrl-F"),
 380                         wxT("Set the font to use for status bar fields"));
 381
 382     wxMenu *statbarPaneStyleMenu = new wxMenu;
 383     statbarPaneStyleMenu->AppendCheckItem
 384         (
 385             StatusBar_SetPaneStyleNormal,
 386             wxT("&Normal"),
 387             wxT("Sets the style of the first field to normal (sunken) look")
 388         );
 389     statbarPaneStyleMenu->AppendCheckItem
 390         (
 391             StatusBar_SetPaneStyleFlat,
 392             wxT("&Flat"),
 393             wxT("Sets the style of the first field to flat look")
 394         );
 395     statbarPaneStyleMenu->AppendCheckItem
 396         (
 397             StatusBar_SetPaneStyleRaised,
 398             wxT("&Raised"),
 399             wxT("Sets the style of the first field to raised look")
 400         );
 401     statbarPaneStyleMenu->AppendCheckItem
 402         (
 403             StatusBar_SetPaneStyleSunken,
 404             wxT("&Sunken"),
 405             wxT("Sets the style of the first field to sunken look")
 406         );
 407     statbarMenu->Append(StatusBar_SetPaneStyle, wxT("Field style"),
 408                         statbarPaneStyleMenu);
 409
 410     statbarMenu->Append(StatusBar_ResetFieldsWidth, wxT("Reset field widths"),
 411                         wxT("Sets all fields to the same width"));
 412     statbarMenu->Append(StatusBar_ShowFieldsRect,
 413                         wxT("Sho&w field rectangles\tCtrl-W"),
 414                         wxT("Visually show field rectangles"));
 415     statbarMenu->AppendSeparator();
 416
 417     statbarMenu->AppendCheckItem(StatusBar_Toggle, wxT("&Toggle Status Bar"),
 418                                  wxT("Toggle the status bar display"));
 419     statbarMenu->Append(StatusBar_Recreate, wxT("&Recreate\tCtrl-R"),
 420                         wxT("Toggle status bar format"));
 421
 422     wxMenu *helpMenu = new wxMenu;
 423     helpMenu->Append(StatusBar_About, wxT("&About\tCtrl-A"),
 424                      wxT("Show about dialog"));
 425
 426     // now append the freshly created menu to the menu bar...
 427     wxMenuBar *menuBar = new wxMenuBar();
 428     menuBar->Append(menuFile, wxT("&File"));
 429     menuBar->Append(statbarMenu, wxT("&Status bar"));
 430     menuBar->Append(helpMenu, wxT("&Help"));
 431
 432     // ... and attach this menu bar to the frame
 433     SetMenuBar(menuBar);
 434
 435     // create default status bar to start with
 436     DoCreateStatusBar(StatBar_Default, wxSTB_DEFAULT_STYLE);
 437     SetStatusText(wxT("Welcome to wxWidgets!"));
 438 }
 439
 440 void MyFrame::DoCreateStatusBar(MyFrame::StatusBarKind kind, long style)
 441 {
 442     wxStatusBar *statbarOld = GetStatusBar();
 443     if ( statbarOld )
 444     {
 445         SetStatusBar(NULL);
 446         delete statbarOld;
 447     }
 448
 449     wxStatusBar *statbarNew = NULL;
 450     switch ( kind )
 451     {
 452         case StatBar_Default:
 453             statbarNew = new wxStatusBar(this, wxID_ANY, style, "wxStatusBar");
 454             statbarNew->SetFieldsCount(2);
 455             break;
 456
 457         case StatBar_Custom:
 458             statbarNew = new MyStatusBar(this, style);
 459             break;
 460
 461         default:
 462             wxFAIL_MSG(wxT("unknown status bar kind"));
 463     }
 464
 465     SetStatusBar(statbarNew);
 466     ApplyPaneStyle();
 467     PositionStatusBar();
 468
 469     m_statbarKind = kind;
 470 }
 471
 472
 473 // ----------------------------------------------------------------------------
 474 // main frame - event handlers
 475 // ----------------------------------------------------------------------------
 476
 477 void MyFrame::OnUpdateForDefaultStatusbar(wxUpdateUIEvent& event)
 478 {
 479     // only allow this feature for the default status bar
 480     wxStatusBar *sb = GetStatusBar();
 481     if (!sb)
 482         return;
 483
 484     event.Enable(sb->GetName() == "wxStatusBar");
 485 }
 486
 487 void MyFrame::OnSetStatusField(wxCommandEvent& WXUNUSED(event))
 488 {
 489     wxStatusBar *sb = GetStatusBar();
 490     if (!sb)
 491         return;
 492
 493     long rc = wxGetNumberFromUser
 494               (
 495                 "Configure the field index to be used by the set, push "
 496                 "and pop text commands in the menu.\n"
 497                 "\n"
 498                 "0 corresponds to the first field, 1 to the second one "
 499                 "and so on.",
 500                 "Field &index:",
 501                 SAMPLE_DIALOGS_TITLE,
 502                 m_field,
 503                 0,
 504                 sb->GetFieldsCount() - 1,
 505                 NULL
 506               );
 507
 508     if ( rc == -1 )
 509         return;
 510
 511     m_field = rc;
 512
 513     wxLogStatus("Status bar text will be set for field #%d", m_field);
 514 }
 515
 516 void MyFrame::OnSetStatusText(wxCommandEvent& WXUNUSED(event))
 517 {
 518     wxStatusBar *sb = GetStatusBar();
 519     if (!sb)
 520         return;
 521
 522     wxString txt = wxGetTextFromUser
 523                    (
 524                         wxString::Format
 525                         (
 526                             "Enter the text from for the field #%d",
 527                             m_field
 528                         ),
 529                         SAMPLE_DIALOGS_TITLE,
 530                         sb->GetStatusText(m_field),
 531                         this
 532                    );
 533
 534     if ( txt.empty() )
 535         return;
 536
 537     sb->SetStatusText(txt, m_field);
 538 }
 539
 540 // the current depth of the stack used by Push/PopStatusText()
 541 static int gs_depth = 0;
 542
 543 void MyFrame::OnPushStatusText(wxCommandEvent& WXUNUSED(event))
 544 {
 545     wxStatusBar *sb = GetStatusBar();
 546     if (!sb)
 547         return;
 548
 549     static int s_countPush = 0;
 550     sb->PushStatusText(wxString::Format
 551                        (
 552                             "Pushed message #%d (depth = %d)",
 553                             ++s_countPush, ++gs_depth
 554                        ), m_field);
 555 }
 556
 557 void MyFrame::OnPopStatusText(wxCommandEvent& WXUNUSED(event))
 558 {
 559     wxStatusBar *sb = GetStatusBar();
 560     if (!sb)
 561         return;
 562
 563     if ( !gs_depth )
 564     {
 565         wxLogStatus("No message to pop.");
 566         return;
 567     }
 568
 569     gs_depth--;
 570     sb->PopStatusText(m_field);
 571 }
 572
 573 void MyFrame::OnSetStatusFont(wxCommandEvent& WXUNUSED(event))
 574 {
 575     wxStatusBar *sb = GetStatusBar();
 576     if (!sb)
 577         return;
 578
 579     wxFont
 580         fnt = wxGetFontFromUser(this, sb->GetFont(), "Choose status bar font");
 581     if (fnt.IsOk())
 582     {
 583         sb->SetFont(fnt);
 584         sb->SetSize(sb->GetBestSize());
 585     }
 586 }
 587
 588 void MyFrame::OnSetStatusFields(wxCommandEvent& WXUNUSED(event))
 589 {
 590     wxStatusBar *sb = GetStatusBar();
 591     if (!sb)
 592         return;
 593
 594     long nFields = wxGetNumberFromUser
 595                 (
 596                     wxT("Select the number of fields in the status bar"),
 597                     wxT("Fields:"),
 598                     SAMPLE_DIALOGS_TITLE,
 599                     sb->GetFieldsCount(),
 600                     1, 5,
 601                     this
 602                 );
 603
 604     // we don't check if the number changed at all on purpose: calling
 605     // SetFieldsCount() with the same number of fields should be ok
 606     if ( nFields != -1 )
 607     {
 608         static const int widthsFor2Fields[] = { 200, -1 };
 609         static const int widthsFor3Fields[] = { -1, -2, -1 };
 610         static const int widthsFor4Fields[] = { 100, -1, 100, -2, 100 };
 611
 612         static const int *widthsAll[] =
 613         {
 614             NULL,               // 1 field: default
 615             widthsFor2Fields,   // 2 fields: 1 fixed, 1 var
 616             widthsFor3Fields,   // 3 fields: 3 var
 617             widthsFor4Fields,   // 4 fields: 3 fixed, 2 vars
 618             NULL                // 5 fields: default (all have same width)
 619         };
 620
 621         const int * const widths = widthsAll[nFields - 1];
 622         sb->SetFieldsCount(nFields, widths);
 623
 624         wxString s;
 625         for ( long n = 0; n < nFields; n++ )
 626         {
 627             if ( widths )
 628             {
 629                 if ( widths[n] > 0 )
 630                     s.Printf(wxT("fixed (%d)"), widths[n]);
 631                 else
 632                     s.Printf(wxT("variable (*%d)"), -widths[n]);
 633             }
 634             else
 635             {
 636                 s = wxT("default");
 637             }
 638
 639             SetStatusText(s, n);
 640         }
 641
 642         if ( m_field >= nFields )
 643             m_field = nFields - 1;
 644     }
 645     else
 646     {
 647         wxLogStatus(this, wxT("Cancelled"));
 648     }
 649 }
 650
 651 void MyFrame::OnResetFieldsWidth(wxCommandEvent& WXUNUSED(event))
 652 {
 653     wxStatusBar *pStat = GetStatusBar();
 654     if ( !pStat )
 655         return;
 656
 657     const int n = pStat->GetFieldsCount();
 658     pStat->SetStatusWidths(n, NULL);
 659     for ( int i = 0; i < n; i++ )
 660         pStat->SetStatusText("same size", i);
 661 }
 662
 663 void MyFrame::OnShowFieldsRect(wxCommandEvent& WXUNUSED(event))
 664 {
 665     wxStatusBar *pStat = GetStatusBar();
 666     if ( !pStat )
 667         return;
 668
 669     wxClientDC dc(pStat);
 670     dc.SetPen(*wxRED_PEN);
 671     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 672
 673     const int n = pStat->GetFieldsCount();
 674     for ( int i = 0; i < n; i++ )
 675     {
 676         wxRect r;
 677         if ( pStat->GetFieldRect(i, r) )
 678             dc.DrawRectangle(r);
 679     }
 680 }
 681
 682 void MyFrame::OnUpdateStatusBarToggle(wxUpdateUIEvent& event)
 683 {
 684     event.Check(GetStatusBar() != NULL);
 685 }
 686
 687 void MyFrame::OnStatusBarToggle(wxCommandEvent& WXUNUSED(event))
 688 {
 689     wxStatusBar *statbarOld = GetStatusBar();
 690     if ( statbarOld )
 691     {
 692         SetStatusBar(NULL);
 693         delete statbarOld;
 694     }
 695     else
 696     {
 697         DoCreateStatusBar(m_statbarKind, wxSTB_DEFAULT_STYLE);
 698     }
 699 }
 700
 701 void MyFrame::OnRecreateStatusBar(wxCommandEvent& WXUNUSED(event))
 702 {
 703     DoCreateStatusBar(m_statbarKind == StatBar_Custom ? StatBar_Default
 704                                                       : StatBar_Custom,
 705                       wxSTB_DEFAULT_STYLE);
 706 }
 707
 708 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 709 {
 710     // true is to force the frame to close
 711     Close(true);
 712 }
 713
 714 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 715 {
 716     MyAboutDialog dlg(this);
 717     dlg.ShowModal();
 718 }
 719
 720 void MyFrame::OnUpdateSetPaneStyle(wxUpdateUIEvent& event)
 721 {
 722     switch (event.GetId())
 723     {
 724         case StatusBar_SetPaneStyleNormal:
 725             event.Check(m_statbarPaneStyle == wxSB_NORMAL);
 726             break;
 727         case StatusBar_SetPaneStyleFlat:
 728             event.Check(m_statbarPaneStyle == wxSB_FLAT);
 729             break;
 730         case StatusBar_SetPaneStyleRaised:
 731             event.Check(m_statbarPaneStyle == wxSB_RAISED);
 732             break;
 733         case StatusBar_SetPaneStyleSunken:
 734             event.Check(m_statbarPaneStyle == wxSB_SUNKEN);
 735             break;
 736     }
 737 }
 738
 739 void MyFrame::OnSetPaneStyle(wxCommandEvent& event)
 740 {
 741     switch (event.GetId())
 742     {
 743         case StatusBar_SetPaneStyleNormal:
 744             m_statbarPaneStyle = wxSB_NORMAL;
 745             break;
 746         case StatusBar_SetPaneStyleFlat:
 747             m_statbarPaneStyle = wxSB_FLAT;
 748             break;
 749         case StatusBar_SetPaneStyleRaised:
 750             m_statbarPaneStyle = wxSB_RAISED;
 751             break;
 752         case StatusBar_SetPaneStyleSunken:
 753             m_statbarPaneStyle = wxSB_SUNKEN;
 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 static const char *numlockIndicators[] = { "OFF", "NUM" };
 899 static const char *capslockIndicators[] = { "", "CAPS" };
 900
 901 MyStatusBar::MyStatusBar(wxWindow *parent, long style)
 902         : wxStatusBar(parent, wxID_ANY, style, "MyStatusBar")
 903 #if wxUSE_TIMER
 904             , m_timer(this)
 905 #endif
 906 #if wxUSE_CHECKBOX
 907             , m_checkbox(NULL)
 908 #endif
 909 {
 910     // compute the size needed for num lock indicator pane
 911     wxClientDC dc(this);
 912     wxSize sizeNumLock = dc.GetTextExtent(numlockIndicators[0]);
 913     sizeNumLock.IncTo(dc.GetTextExtent(numlockIndicators[1]));
 914
 915     int widths[Field_Max];
 916     widths[Field_Text] = -1; // growable
 917     widths[Field_Checkbox] = 150;
 918     widths[Field_Bitmap] = BITMAP_SIZE_X;
 919     widths[Field_NumLockIndicator] = sizeNumLock.x;
 920     widths[Field_Clock] = 100;
 921     widths[Field_CapsLockIndicator] = dc.GetTextExtent(capslockIndicators[1]).x;
 922
 923     SetFieldsCount(Field_Max);
 924     SetStatusWidths(Field_Max, widths);
 925
 926 #if wxUSE_CHECKBOX
 927     m_checkbox = new wxCheckBox(this, StatusBar_Checkbox, wxT("&Toggle clock"));
 928     m_checkbox->SetValue(true);
 929 #endif
 930
 931     m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxIcon(green_xpm));
 932
 933 #if wxUSE_TIMER
 934     m_timer.Start(1000);
 935 #endif
 936
 937     SetMinHeight(wxMax(m_statbmp->GetBestSize().GetHeight(),
 938                        m_checkbox->GetBestSize().GetHeight()));
 939
 940     UpdateClock();
 941 }
 942
 943 #ifdef __VISUALC__
 944     #pragma warning(default: 4355)
 945 #endif
 946
 947 MyStatusBar::~MyStatusBar()
 948 {
 949 #if wxUSE_TIMER
 950     if ( m_timer.IsRunning() )
 951     {
 952         m_timer.Stop();
 953     }
 954 #endif
 955 }
 956
 957 void MyStatusBar::OnSize(wxSizeEvent& event)
 958 {
 959 #if wxUSE_CHECKBOX
 960     if ( !m_checkbox )
 961         return;
 962 #endif
 963
 964     wxRect rect;
 965     if (!GetFieldRect(Field_Checkbox, rect))
 966     {
 967         event.Skip();
 968         return;
 969     }
 970
 971 #if wxUSE_CHECKBOX
 972     wxRect rectCheck = rect;
 973     rectCheck.Deflate(2);
 974     m_checkbox->SetSize(rectCheck);
 975 #endif
 976
 977     GetFieldRect(Field_Bitmap, rect);
 978     wxSize size = m_statbmp->GetSize();
 979
 980     m_statbmp->Move(rect.x + (rect.width - size.x) / 2,
 981                     rect.y + (rect.height - size.y) / 2);
 982
 983     event.Skip();
 984 }
 985
 986 void MyStatusBar::OnToggleClock(wxCommandEvent& WXUNUSED(event))
 987 {
 988     DoToggle();
 989 }
 990
 991 void MyStatusBar::OnIdle(wxIdleEvent& event)
 992 {
 993     SetStatusText(numlockIndicators[wxGetKeyState(WXK_NUMLOCK)],
 994                   Field_NumLockIndicator);
 995     SetStatusText(capslockIndicators[wxGetKeyState(WXK_CAPITAL)],
 996                   Field_CapsLockIndicator);
 997
 998     event.Skip();
 999 }
1000
1001 void MyStatusBar::DoToggle()
1002 {
1003 #if wxUSE_CHECKBOX
1004     if ( m_checkbox->GetValue() )
1005     {
1006 #if wxUSE_TIMER
1007         m_timer.Start(1000);
1008 #endif
1009
1010         m_statbmp->SetIcon(wxIcon(green_xpm));
1011
1012         UpdateClock();
1013     }
1014     else // don't show clock
1015     {
1016 #if wxUSE_TIMER
1017         m_timer.Stop();
1018 #endif
1019
1020         m_statbmp->SetIcon(wxIcon(red_xpm));
1021
1022         SetStatusText(wxEmptyString, Field_Clock);
1023     }
1024 #endif // wxUSE_CHECKBOX
1025 }
1026
1027 void MyStatusBar::UpdateClock()
1028 {
1029     SetStatusText(wxDateTime::Now().FormatTime(), Field_Clock);
1030 }