src/common/tbarbase.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/tbarbase.cpp
   3 // Purpose:     wxToolBarBase implementation
   4 // Author:      Julian Smart
   5 // Modified by: VZ at 11.12.99 (wxScrollableToolBar split off)
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_TOOLBAR
  28
  29 #include "wx/toolbar.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/control.h"
  33     #include "wx/frame.h"
  34     #include "wx/settings.h"
  35     #if WXWIN_COMPATIBILITY_2_8
  36         #include "wx/image.h"
  37     #endif // WXWIN_COMPATIBILITY_2_8
  38 #endif
  39
  40 // ----------------------------------------------------------------------------
  41 // wxWidgets macros
  42 // ----------------------------------------------------------------------------
  43
  44 BEGIN_EVENT_TABLE(wxToolBarBase, wxControl)
  45 END_EVENT_TABLE()
  46
  47 #include "wx/listimpl.cpp"
  48
  49 WX_DEFINE_LIST(wxToolBarToolsList)
  50
  51 // ============================================================================
  52 // implementation
  53 // ============================================================================
  54
  55 // ----------------------------------------------------------------------------
  56 // wxToolBarToolBase
  57 // ----------------------------------------------------------------------------
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxToolBarToolBase, wxObject)
  60
  61 bool wxToolBarToolBase::Enable(bool enable)
  62 {
  63     if ( m_enabled == enable )
  64         return false;
  65
  66     m_enabled = enable;
  67
  68     return true;
  69 }
  70
  71 bool wxToolBarToolBase::Toggle(bool toggle)
  72 {
  73     wxASSERT_MSG( CanBeToggled(), _T("can't toggle this tool") );
  74
  75     if ( m_toggled == toggle )
  76         return false;
  77
  78     m_toggled = toggle;
  79
  80     return true;
  81 }
  82
  83 bool wxToolBarToolBase::SetToggle(bool toggle)
  84 {
  85     wxItemKind kind = toggle ? wxITEM_CHECK : wxITEM_NORMAL;
  86     if ( m_kind == kind )
  87         return false;
  88
  89     m_kind = kind;
  90
  91     return true;
  92 }
  93
  94 bool wxToolBarToolBase::SetShortHelp(const wxString& help)
  95 {
  96     if ( m_shortHelpString == help )
  97         return false;
  98
  99     m_shortHelpString = help;
 100
 101     return true;
 102 }
 103
 104 bool wxToolBarToolBase::SetLongHelp(const wxString& help)
 105 {
 106     if ( m_longHelpString == help )
 107         return false;
 108
 109     m_longHelpString = help;
 110
 111     return true;
 112 }
 113
 114 // ----------------------------------------------------------------------------
 115 // wxToolBarBase adding/deleting items
 116 // ----------------------------------------------------------------------------
 117
 118 wxToolBarBase::wxToolBarBase()
 119 {
 120     // the list owns the pointers
 121     m_xMargin = m_yMargin = 0;
 122     m_maxRows = m_maxCols = 0;
 123     m_toolPacking = m_toolSeparation = 0;
 124     m_defaultWidth = 16;
 125     m_defaultHeight = 15;
 126 }
 127
 128 void wxToolBarBase::FixupStyle()
 129 {
 130     if ( !HasFlag(wxTB_TOP | wxTB_LEFT | wxTB_RIGHT | wxTB_BOTTOM) )
 131     {
 132         // this is the default
 133         m_windowStyle |= wxTB_TOP;
 134     }
 135 }
 136
 137 wxToolBarToolBase *wxToolBarBase::DoAddTool(int id,
 138                                             const wxString& label,
 139                                             const wxBitmap& bitmap,
 140                                             const wxBitmap& bmpDisabled,
 141                                             wxItemKind kind,
 142                                             const wxString& shortHelp,
 143                                             const wxString& longHelp,
 144                                             wxObject *clientData,
 145                                             wxCoord WXUNUSED(xPos),
 146                                             wxCoord WXUNUSED(yPos))
 147 {
 148     InvalidateBestSize();
 149     return InsertTool(GetToolsCount(), id, label, bitmap, bmpDisabled,
 150                       kind, shortHelp, longHelp, clientData);
 151 }
 152
 153 wxToolBarToolBase *wxToolBarBase::InsertTool(size_t pos,
 154                                              int id,
 155                                              const wxString& label,
 156                                              const wxBitmap& bitmap,
 157                                              const wxBitmap& bmpDisabled,
 158                                              wxItemKind kind,
 159                                              const wxString& shortHelp,
 160                                              const wxString& longHelp,
 161                                              wxObject *clientData)
 162 {
 163     wxCHECK_MSG( pos <= GetToolsCount(), (wxToolBarToolBase *)NULL,
 164                  _T("invalid position in wxToolBar::InsertTool()") );
 165
 166     wxToolBarToolBase *tool = CreateTool(id, label, bitmap, bmpDisabled, kind,
 167                                          clientData, shortHelp, longHelp);
 168
 169     if ( !InsertTool(pos, tool) )
 170     {
 171         delete tool;
 172
 173         return NULL;
 174     }
 175
 176     return tool;
 177 }
 178
 179 wxToolBarToolBase *wxToolBarBase::AddTool(wxToolBarToolBase *tool)
 180 {
 181     return InsertTool(GetToolsCount(), tool);
 182 }
 183
 184 wxToolBarToolBase *
 185 wxToolBarBase::InsertTool(size_t pos, wxToolBarToolBase *tool)
 186 {
 187     wxCHECK_MSG( pos <= GetToolsCount(), (wxToolBarToolBase *)NULL,
 188                  _T("invalid position in wxToolBar::InsertTool()") );
 189
 190     if ( !tool || !DoInsertTool(pos, tool) )
 191     {
 192         return NULL;
 193     }
 194
 195     m_tools.Insert(pos, tool);
 196
 197     return tool;
 198 }
 199
 200 wxToolBarToolBase *wxToolBarBase::AddControl(wxControl *control)
 201 {
 202     return InsertControl(GetToolsCount(), control);
 203 }
 204
 205 wxToolBarToolBase *wxToolBarBase::InsertControl(size_t pos, wxControl *control)
 206 {
 207     wxCHECK_MSG( control, (wxToolBarToolBase *)NULL,
 208                  _T("toolbar: can't insert NULL control") );
 209
 210     wxCHECK_MSG( control->GetParent() == this, (wxToolBarToolBase *)NULL,
 211                  _T("control must have toolbar as parent") );
 212
 213     wxCHECK_MSG( pos <= GetToolsCount(), (wxToolBarToolBase *)NULL,
 214                  _T("invalid position in wxToolBar::InsertControl()") );
 215
 216     wxToolBarToolBase *tool = CreateTool(control);
 217
 218     if ( !InsertTool(pos, tool) )
 219     {
 220         delete tool;
 221
 222         return NULL;
 223     }
 224
 225     return tool;
 226 }
 227
 228 wxControl *wxToolBarBase::FindControl( int id )
 229 {
 230     for ( wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 231           node;
 232           node = node->GetNext() )
 233     {
 234         const wxToolBarToolBase * const tool = node->GetData();
 235         if ( tool->IsControl() )
 236         {
 237             wxControl * const control = tool->GetControl();
 238
 239             if ( !control )
 240             {
 241                 wxFAIL_MSG( _T("NULL control in toolbar?") );
 242             }
 243             else if ( control->GetId() == id )
 244             {
 245                 // found
 246                 return control;
 247             }
 248         }
 249     }
 250
 251    return NULL;
 252 }
 253
 254 wxToolBarToolBase *wxToolBarBase::AddSeparator()
 255 {
 256     return InsertSeparator(GetToolsCount());
 257 }
 258
 259 wxToolBarToolBase *wxToolBarBase::InsertSeparator(size_t pos)
 260 {
 261     wxCHECK_MSG( pos <= GetToolsCount(), (wxToolBarToolBase *)NULL,
 262                  _T("invalid position in wxToolBar::InsertSeparator()") );
 263
 264     wxToolBarToolBase *tool = CreateTool(wxID_SEPARATOR,
 265                                          wxEmptyString,
 266                                          wxNullBitmap, wxNullBitmap,
 267                                          wxITEM_SEPARATOR, (wxObject *)NULL,
 268                                          wxEmptyString, wxEmptyString);
 269
 270     if ( !tool || !DoInsertTool(pos, tool) )
 271     {
 272         delete tool;
 273
 274         return NULL;
 275     }
 276
 277     m_tools.Insert(pos, tool);
 278
 279     return tool;
 280 }
 281
 282 wxToolBarToolBase *wxToolBarBase::RemoveTool(int id)
 283 {
 284     size_t pos = 0;
 285     wxToolBarToolsList::compatibility_iterator node;
 286     for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
 287     {
 288         if ( node->GetData()->GetId() == id )
 289             break;
 290
 291         pos++;
 292     }
 293
 294     if ( !node )
 295     {
 296         // don't give any error messages - sometimes we might call RemoveTool()
 297         // without knowing whether the tool is or not in the toolbar
 298         return (wxToolBarToolBase *)NULL;
 299     }
 300
 301     wxToolBarToolBase *tool = node->GetData();
 302     if ( !DoDeleteTool(pos, tool) )
 303     {
 304         return (wxToolBarToolBase *)NULL;
 305     }
 306
 307     m_tools.Erase(node);
 308
 309     return tool;
 310 }
 311
 312 bool wxToolBarBase::DeleteToolByPos(size_t pos)
 313 {
 314     wxCHECK_MSG( pos < GetToolsCount(), false,
 315                  _T("invalid position in wxToolBar::DeleteToolByPos()") );
 316
 317     wxToolBarToolsList::compatibility_iterator node = m_tools.Item(pos);
 318
 319     if ( !DoDeleteTool(pos, node->GetData()) )
 320     {
 321         return false;
 322     }
 323
 324     delete node->GetData();
 325     m_tools.Erase(node);
 326
 327     return true;
 328 }
 329
 330 bool wxToolBarBase::DeleteTool(int id)
 331 {
 332     size_t pos = 0;
 333     wxToolBarToolsList::compatibility_iterator node;
 334     for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
 335     {
 336         if ( node->GetData()->GetId() == id )
 337             break;
 338
 339         pos++;
 340     }
 341
 342     if ( !node || !DoDeleteTool(pos, node->GetData()) )
 343     {
 344         return false;
 345     }
 346
 347     delete node->GetData();
 348     m_tools.Erase(node);
 349
 350     return true;
 351 }
 352
 353 wxToolBarToolBase *wxToolBarBase::FindById(int id) const
 354 {
 355     wxToolBarToolBase *tool = (wxToolBarToolBase *)NULL;
 356
 357     for ( wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 358           node;
 359           node = node->GetNext() )
 360     {
 361         tool = node->GetData();
 362         if ( tool->GetId() == id )
 363         {
 364             // found
 365             break;
 366         }
 367
 368         tool = NULL;
 369     }
 370
 371     return tool;
 372 }
 373
 374 void wxToolBarBase::UnToggleRadioGroup(wxToolBarToolBase *tool)
 375 {
 376     wxCHECK_RET( tool, _T("NULL tool in wxToolBarTool::UnToggleRadioGroup") );
 377
 378     if ( !tool->IsButton() || tool->GetKind() != wxITEM_RADIO )
 379         return;
 380
 381     wxToolBarToolsList::compatibility_iterator node = m_tools.Find(tool);
 382     wxCHECK_RET( node, _T("invalid tool in wxToolBarTool::UnToggleRadioGroup") );
 383
 384     wxToolBarToolsList::compatibility_iterator nodeNext = node->GetNext();
 385     while ( nodeNext )
 386     {
 387         wxToolBarToolBase *toolNext = nodeNext->GetData();
 388
 389         if ( !toolNext->IsButton() || toolNext->GetKind() != wxITEM_RADIO )
 390             break;
 391
 392         if ( toolNext->Toggle(false) )
 393         {
 394             DoToggleTool(toolNext, false);
 395         }
 396
 397         nodeNext = nodeNext->GetNext();
 398     }
 399
 400     wxToolBarToolsList::compatibility_iterator nodePrev = node->GetPrevious();
 401     while ( nodePrev )
 402     {
 403         wxToolBarToolBase *toolNext = nodePrev->GetData();
 404
 405         if ( !toolNext->IsButton() || toolNext->GetKind() != wxITEM_RADIO )
 406             break;
 407
 408         if ( toolNext->Toggle(false) )
 409         {
 410             DoToggleTool(toolNext, false);
 411         }
 412
 413         nodePrev = nodePrev->GetPrevious();
 414     }
 415 }
 416
 417 void wxToolBarBase::ClearTools()
 418 {
 419     while ( GetToolsCount() )
 420     {
 421         DeleteToolByPos(0);
 422     }
 423 }
 424
 425 bool wxToolBarBase::Realize()
 426 {
 427     return true;
 428 }
 429
 430 wxToolBarBase::~wxToolBarBase()
 431 {
 432     WX_CLEAR_LIST(wxToolBarToolsList, m_tools);
 433
 434     // notify the frame that it doesn't have a tool bar any longer to avoid
 435     // dangling pointers
 436     wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 437     if ( frame && frame->GetToolBar() == this )
 438     {
 439         frame->SetToolBar(NULL);
 440     }
 441 }
 442
 443 // ----------------------------------------------------------------------------
 444 // wxToolBarBase tools state
 445 // ----------------------------------------------------------------------------
 446
 447 void wxToolBarBase::EnableTool(int id, bool enable)
 448 {
 449     wxToolBarToolBase *tool = FindById(id);
 450     if ( tool )
 451     {
 452         if ( tool->Enable(enable) )
 453         {
 454             DoEnableTool(tool, enable);
 455         }
 456     }
 457 }
 458
 459 void wxToolBarBase::ToggleTool(int id, bool toggle)
 460 {
 461     wxToolBarToolBase *tool = FindById(id);
 462     if ( tool && tool->CanBeToggled() )
 463     {
 464         if ( tool->Toggle(toggle) )
 465         {
 466             UnToggleRadioGroup(tool);
 467             DoToggleTool(tool, toggle);
 468         }
 469     }
 470 }
 471
 472 void wxToolBarBase::SetToggle(int id, bool toggle)
 473 {
 474     wxToolBarToolBase *tool = FindById(id);
 475     if ( tool )
 476     {
 477         if ( tool->SetToggle(toggle) )
 478         {
 479             DoSetToggle(tool, toggle);
 480         }
 481     }
 482 }
 483
 484 void wxToolBarBase::SetToolShortHelp(int id, const wxString& help)
 485 {
 486     wxToolBarToolBase *tool = FindById(id);
 487     if ( tool )
 488     {
 489         (void)tool->SetShortHelp(help);
 490     }
 491 }
 492
 493 void wxToolBarBase::SetToolLongHelp(int id, const wxString& help)
 494 {
 495     wxToolBarToolBase *tool = FindById(id);
 496     if ( tool )
 497     {
 498         (void)tool->SetLongHelp(help);
 499     }
 500 }
 501
 502 wxObject *wxToolBarBase::GetToolClientData(int id) const
 503 {
 504     wxToolBarToolBase *tool = FindById(id);
 505
 506     return tool ? tool->GetClientData() : (wxObject *)NULL;
 507 }
 508
 509 void wxToolBarBase::SetToolClientData(int id, wxObject *clientData)
 510 {
 511     wxToolBarToolBase *tool = FindById(id);
 512
 513     wxCHECK_RET( tool, _T("no such tool in wxToolBar::SetToolClientData") );
 514
 515     tool->SetClientData(clientData);
 516 }
 517
 518 int wxToolBarBase::GetToolPos(int id) const
 519 {
 520     size_t pos = 0;
 521     wxToolBarToolsList::compatibility_iterator node;
 522
 523     for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
 524     {
 525         if ( node->GetData()->GetId() == id )
 526             return pos;
 527
 528         pos++;
 529     }
 530
 531     return wxNOT_FOUND;
 532 }
 533
 534 bool wxToolBarBase::GetToolState(int id) const
 535 {
 536     wxToolBarToolBase *tool = FindById(id);
 537     wxCHECK_MSG( tool, false, _T("no such tool") );
 538
 539     return tool->IsToggled();
 540 }
 541
 542 bool wxToolBarBase::GetToolEnabled(int id) const
 543 {
 544     wxToolBarToolBase *tool = FindById(id);
 545     wxCHECK_MSG( tool, false, _T("no such tool") );
 546
 547     return tool->IsEnabled();
 548 }
 549
 550 wxString wxToolBarBase::GetToolShortHelp(int id) const
 551 {
 552     wxToolBarToolBase *tool = FindById(id);
 553     wxCHECK_MSG( tool, wxEmptyString, _T("no such tool") );
 554
 555     return tool->GetShortHelp();
 556 }
 557
 558 wxString wxToolBarBase::GetToolLongHelp(int id) const
 559 {
 560     wxToolBarToolBase *tool = FindById(id);
 561     wxCHECK_MSG( tool, wxEmptyString, _T("no such tool") );
 562
 563     return tool->GetLongHelp();
 564 }
 565
 566 // ----------------------------------------------------------------------------
 567 // wxToolBarBase geometry
 568 // ----------------------------------------------------------------------------
 569
 570 void wxToolBarBase::SetMargins(int x, int y)
 571 {
 572     m_xMargin = x;
 573     m_yMargin = y;
 574 }
 575
 576 void wxToolBarBase::SetRows(int WXUNUSED(nRows))
 577 {
 578     // nothing
 579 }
 580
 581 // ----------------------------------------------------------------------------
 582 // event processing
 583 // ----------------------------------------------------------------------------
 584
 585 // Only allow toggle if returns true
 586 bool wxToolBarBase::OnLeftClick(int id, bool toggleDown)
 587 {
 588     wxCommandEvent event(wxEVT_COMMAND_TOOL_CLICKED, id);
 589     event.SetEventObject(this);
 590
 591     // we use SetInt() to make wxCommandEvent::IsChecked() return toggleDown
 592     event.SetInt((int)toggleDown);
 593
 594     // and SetExtraLong() for backwards compatibility
 595     event.SetExtraLong((long)toggleDown);
 596
 597     // Send events to this toolbar instead (and thence up the window hierarchy)
 598     GetEventHandler()->ProcessEvent(event);
 599
 600     return true;
 601 }
 602
 603 // Call when right button down.
 604 void wxToolBarBase::OnRightClick(int id,
 605                                  long WXUNUSED(x),
 606                                  long WXUNUSED(y))
 607 {
 608     wxCommandEvent event(wxEVT_COMMAND_TOOL_RCLICKED, id);
 609     event.SetEventObject(this);
 610     event.SetInt(id);
 611
 612     GetEventHandler()->ProcessEvent(event);
 613 }
 614
 615 // Called when the mouse cursor enters a tool bitmap (no button pressed).
 616 // Argument is wxID_ANY if mouse is exiting the toolbar.
 617 // Note that for this event, the id of the window is used,
 618 // and the integer parameter of wxCommandEvent is used to retrieve
 619 // the tool id.
 620 void wxToolBarBase::OnMouseEnter(int id)
 621 {
 622     wxCommandEvent event(wxEVT_COMMAND_TOOL_ENTER, GetId());
 623     event.SetEventObject(this);
 624     event.SetInt(id);
 625
 626     wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 627     if( frame )
 628     {
 629         wxString help;
 630         wxToolBarToolBase* tool = id == wxID_ANY ? (wxToolBarToolBase*)NULL : FindById(id);
 631         if(tool)
 632             help = tool->GetLongHelp();
 633         frame->DoGiveHelp( help, id != wxID_ANY );
 634     }
 635
 636     (void)GetEventHandler()->ProcessEvent(event);
 637 }
 638
 639 // ----------------------------------------------------------------------------
 640 // UI updates
 641 // ----------------------------------------------------------------------------
 642
 643 // Do the toolbar button updates (check for EVT_UPDATE_UI handlers)
 644 void wxToolBarBase::UpdateWindowUI(long flags)
 645 {
 646     wxWindowBase::UpdateWindowUI(flags);
 647
 648     // There is no sense in updating the toolbar UI
 649     // if the parent window is about to get destroyed
 650     wxWindow *tlw = wxGetTopLevelParent( this );
 651     if (tlw && wxPendingDelete.Member( tlw ))
 652         return;
 653
 654     wxEvtHandler* evtHandler = GetEventHandler() ;
 655
 656     for ( wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 657           node;
 658           node = node->GetNext() )
 659     {
 660         int id = node->GetData()->GetId();
 661
 662         wxUpdateUIEvent event(id);
 663         event.SetEventObject(this);
 664
 665         if ( evtHandler->ProcessEvent(event) )
 666         {
 667             if ( event.GetSetEnabled() )
 668                 EnableTool(id, event.GetEnabled());
 669             if ( event.GetSetChecked() )
 670                 ToggleTool(id, event.GetChecked());
 671 #if 0
 672             if ( event.GetSetText() )
 673                 // Set tooltip?
 674 #endif // 0
 675         }
 676     }
 677 }
 678
 679 #if WXWIN_COMPATIBILITY_2_8
 680
 681 bool wxCreateGreyedImage(const wxImage& in, wxImage& out)
 682 {
 683 #if wxUSE_IMAGE
 684     out = in.ConvertToGreyscale();
 685     if ( out.Ok() )
 686         return true;
 687 #endif // wxUSE_IMAGE
 688
 689     return false;
 690 }
 691
 692 #endif // WXWIN_COMPATIBILITY_2_8
 693
 694 #endif // wxUSE_TOOLBAR