src/common/tbarbase.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        tbarbase.cpp
   3 // Purpose:     Toolbar base classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "tbarbase.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 // For ::UpdateWindow
  28 #ifdef __WXMSW__
  29 #include <windows.h>
  30 #endif
  31
  32 #if wxUSE_TOOLBAR
  33
  34 #include "wx/tbarbase.h"
  35
  36 #if !USE_SHARED_LIBRARY
  37 IMPLEMENT_ABSTRACT_CLASS(wxToolBarBase, wxControl)
  38 IMPLEMENT_DYNAMIC_CLASS(wxToolBarTool, wxObject)
  39
  40 BEGIN_EVENT_TABLE(wxToolBarBase, wxControl)
  41   EVT_SCROLL(wxToolBarBase::OnScroll)
  42   EVT_SIZE(wxToolBarBase::OnSize)
  43   EVT_IDLE(wxToolBarBase::OnIdle)
  44 END_EVENT_TABLE()
  45 #endif
  46
  47 // Keep a list of all toolbars created, so you can tell whether a toolbar
  48 // is still valid: a tool may have quit the toolbar.
  49 static wxList gs_ToolBars;
  50
  51 wxToolBarTool::wxToolBarTool(int theIndex,
  52                     const wxBitmap& theBitmap1, const wxBitmap& theBitmap2, bool toggle,
  53                     long xPos, long yPos, const wxString& helpS1, const wxString& helpS2)
  54 {
  55   m_toolStyle = wxTOOL_STYLE_BUTTON;
  56   m_clientData = NULL;
  57   m_index = theIndex;
  58   m_isToggle = toggle;
  59   m_toggleState = FALSE;
  60   m_enabled = TRUE;
  61   m_bitmap1 = theBitmap1;
  62   m_bitmap2 = theBitmap2;
  63   m_x = xPos;
  64   m_y = yPos;
  65   m_width = m_height = 0;
  66   m_deleteSecondBitmap = FALSE;
  67   if (m_bitmap1.Ok())
  68   {
  69     m_width = m_bitmap1.GetWidth()+2;
  70     m_height = m_bitmap1.GetHeight()+2;
  71   }
  72   m_shortHelpString = helpS1;
  73   m_longHelpString = helpS2;
  74 }
  75
  76 wxToolBarTool::~wxToolBarTool(void)
  77 {
  78 /*
  79   if (m_deleteSecondBitmap && m_bitmap2)
  80     delete m_bitmap2;
  81 */
  82 }
  83
  84
  85 // class wxToolBar
  86
  87 wxToolBarBase::wxToolBarBase(void) : m_tools(wxKEY_INTEGER)
  88 {
  89   gs_ToolBars.Append(this);
  90
  91   m_maxRows = 1;
  92   m_maxCols = 32000;
  93   m_maxWidth = 0;
  94   m_maxHeight = 0;
  95   m_defaultWidth = 16;
  96   m_defaultHeight = 15;
  97   m_xMargin = 0;
  98   m_yMargin = 0;
  99   m_toolPacking = 1;
 100   m_toolSeparation = 5;
 101   m_currentTool = -1;
 102
 103   m_xScrollPixelsPerLine = 0;
 104   m_yScrollPixelsPerLine = 0;
 105   m_xScrollingEnabled = TRUE;
 106   m_yScrollingEnabled = TRUE;
 107   m_xScrollPosition = 0;
 108   m_yScrollPosition = 0;
 109   m_calcScrolledOffset = TRUE;
 110   m_xScrollLines = 0;
 111   m_yScrollLines = 0;
 112   m_xScrollLinesPerPage = 0;
 113   m_yScrollLinesPerPage = 0;
 114 }
 115
 116 wxToolBarBase::~wxToolBarBase ()
 117 {
 118   gs_ToolBars.DeleteObject(this);
 119
 120   for ( wxNode *node = m_tools.First(); node; node = node->Next() )
 121   {
 122     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 123     delete tool;
 124   }
 125 }
 126
 127 // Only allow toggle if returns TRUE
 128 bool wxToolBarBase::OnLeftClick(int toolIndex, bool toggleDown)
 129 {
 130     wxCommandEvent event(wxEVT_COMMAND_TOOL_CLICKED, toolIndex);
 131     event.SetEventObject(this);
 132     event.SetExtraLong((long) toggleDown);
 133
 134     GetEventHandler()->ProcessEvent(event);
 135
 136     return TRUE;
 137 }
 138
 139 // Call when right button down.
 140 void wxToolBarBase::OnRightClick(int toolIndex, long x, long y)
 141 {
 142     wxCommandEvent event(wxEVT_COMMAND_TOOL_RCLICKED, toolIndex);
 143     event.SetEventObject(this);
 144     event.SetInt(toolIndex);
 145
 146     GetEventHandler()->ProcessEvent(event);
 147 }
 148
 149 // Called when the mouse cursor enters a tool bitmap (no button pressed).
 150 // Argument is -1 if mouse is exiting the toolbar.
 151 // Note that for this event, the id of the window is used,
 152 // and the integer parameter of wxCommandEvent is used to retrieve
 153 // the tool id.
 154 void wxToolBarBase::OnMouseEnter ( int toolIndex )
 155 {
 156     wxCommandEvent event(wxEVT_COMMAND_TOOL_ENTER, GetId());
 157     event.SetEventObject(this);
 158     event.SetInt(toolIndex);
 159
 160     GetEventHandler()->ProcessEvent(event);
 161 }
 162
 163 // If pushedBitmap is NULL, a reversed version of bitmap is
 164 // created and used as the pushed/toggled image.
 165 // If toggle is TRUE, the button toggles between the two states.
 166 wxToolBarTool *wxToolBarBase::AddTool(int index, const wxBitmap& bitmap, const wxBitmap& pushedBitmap,
 167              bool toggle, long xPos, long yPos, wxObject *clientData,
 168              const wxString& helpString1, const wxString& helpString2)
 169 {
 170   wxToolBarTool *tool = new wxToolBarTool(index, bitmap, pushedBitmap, toggle, xPos, yPos, helpString1, helpString2);
 171   tool->m_clientData = clientData;
 172
 173   if (xPos > -1)
 174     tool->m_x = xPos;
 175   else
 176     tool->m_x = m_xMargin;
 177
 178   if (yPos > -1)
 179     tool->m_y = yPos;
 180   else
 181     tool->m_y = m_yMargin;
 182
 183   // Calculate reasonable max size in case Layout() not called
 184   if ((tool->m_x + bitmap.GetWidth() + m_xMargin) > m_maxWidth)
 185     m_maxWidth = (tool->m_x + bitmap.GetWidth() + m_xMargin);
 186
 187   if ((tool->m_y + bitmap.GetHeight() + m_yMargin) > m_maxHeight)
 188     m_maxHeight = (tool->m_y + bitmap.GetHeight() + m_yMargin);
 189
 190   m_tools.Append((long)index, tool);
 191   return tool;
 192 }
 193
 194 void wxToolBarBase::AddSeparator ()
 195 {
 196   wxToolBarTool *tool = new wxToolBarTool;
 197   tool->m_toolStyle = wxTOOL_STYLE_SEPARATOR;
 198   m_tools.Append(tool);
 199 }
 200
 201 void wxToolBarBase::ClearTools(void)
 202 {
 203   m_pressedTool = m_currentTool = -1;
 204   wxNode *node = m_tools.First();
 205   while (node)
 206   {
 207     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 208     wxNode *nextNode = node->Next();
 209     delete tool;
 210     delete node;
 211     node = nextNode;
 212   }
 213 }
 214
 215 void wxToolBarBase::EnableTool(int index, bool enable)
 216 {
 217   wxNode *node = m_tools.Find((long)index);
 218   if (node)
 219   {
 220     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 221     if (tool)
 222       tool->m_enabled = enable;
 223   }
 224 }
 225
 226 void wxToolBarBase::ToggleTool(int index, bool toggle)
 227 {
 228 }
 229
 230 void wxToolBarBase::SetToggle(int index, bool value)
 231 {
 232   wxNode *node=m_tools.Find((long)index);
 233   if (node){
 234     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 235     tool->m_isToggle = value;
 236   }
 237 }
 238
 239 bool wxToolBarBase::GetToolState(int index) const
 240 {
 241   wxNode *node = m_tools.Find((long)index);
 242   if (node)
 243   {
 244     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 245     if (tool)
 246     {
 247       return tool->m_toggleState;
 248     }
 249     else return FALSE;
 250   }
 251   else return FALSE;
 252 }
 253
 254 bool wxToolBarBase::GetToolEnabled(int index) const
 255 {
 256   wxNode *node = m_tools.Find((long)index);
 257   if (node)
 258   {
 259     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 260     if (tool)
 261     {
 262       return tool->m_enabled;
 263     }
 264     else return FALSE;
 265   }
 266   else return FALSE;
 267 }
 268
 269 wxObject *wxToolBarBase::GetToolClientData(int index) const
 270 {
 271   wxNode *node = m_tools.Find((long)index);
 272   if (node)
 273   {
 274     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 275     if (tool)
 276     {
 277       return tool->m_clientData;
 278     }
 279     else return NULL;
 280   }
 281   else return NULL;
 282 }
 283
 284 void wxToolBarBase::SetToolShortHelp(int index, const wxString& helpString)
 285 {
 286   wxNode *node=m_tools.Find((long)index);
 287   if (node)
 288   {
 289     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 290     tool->m_shortHelpString = helpString;
 291   }
 292 }
 293
 294 wxString wxToolBarBase::GetToolShortHelp(int index) const
 295 {
 296   wxNode *node=m_tools.Find((long)index);
 297   if (node)
 298   {
 299     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 300     return tool->m_shortHelpString;
 301   }
 302   else
 303     return wxString("");
 304 }
 305
 306 void wxToolBarBase::SetToolLongHelp(int index, const wxString& helpString)
 307 {
 308   wxNode *node=m_tools.Find((long)index);
 309   if (node)
 310   {
 311     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 312     tool->m_longHelpString = helpString;
 313   }
 314 }
 315
 316 wxString wxToolBarBase::GetToolLongHelp(int index) const
 317 {
 318   wxNode *node=m_tools.Find((long)index);
 319   if (node)
 320   {
 321     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 322     return tool->m_longHelpString;
 323   }
 324   else
 325     return wxString("");
 326 }
 327
 328 wxToolBarTool *wxToolBarBase::FindToolForPosition(long x, long y) const
 329 {
 330   wxNode *node = m_tools.First();
 331   while (node)
 332   {
 333     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 334     if ((x >= tool->m_x) && (y >= tool->m_y) &&
 335         (x <= (tool->m_x + tool->GetWidth())) &&
 336         (y <= (tool->m_y + tool->GetHeight())))
 337       return tool;
 338
 339     node = node->Next();
 340   }
 341   return NULL;
 342 }
 343
 344 wxSize wxToolBarBase::GetMaxSize ( void ) const
 345 {
 346   return wxSize(m_maxWidth, m_maxHeight);
 347 }
 348
 349 // Okay, so we've left the tool we're in ... we must check if
 350 // the tool we're leaving was a 'sprung push button' and if so,
 351 // spring it back to the up state.
 352 //
 353 void wxToolBarBase::SetMargins(int x, int y)
 354 {
 355   m_xMargin = x;
 356   m_yMargin = y;
 357 }
 358
 359 void wxToolBarBase::SetToolPacking(int packing)
 360 {
 361   m_toolPacking = packing;
 362 }
 363
 364 void wxToolBarBase::SetToolSeparation(int separation)
 365 {
 366   m_toolSeparation = separation;
 367 }
 368
 369 void wxToolBarBase::Command(wxCommandEvent& event)
 370 {
 371 }
 372
 373 void wxToolBarBase::Layout(void)
 374 {
 375 }
 376
 377
 378 // SCROLLING IMPLEMENTATION
 379
 380 /*
 381  * pixelsPerUnitX/pixelsPerUnitY: number of pixels per unit (e.g. pixels per text line)
 382  * noUnitsX/noUnitsY:        : no. units per scrollbar
 383  */
 384 void wxToolBarBase::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
 385                int noUnitsX, int noUnitsY,
 386                int xPos, int yPos)
 387 {
 388       m_xScrollPixelsPerLine = pixelsPerUnitX;
 389       m_yScrollPixelsPerLine = pixelsPerUnitY;
 390       m_xScrollLines = noUnitsX;
 391       m_yScrollLines = noUnitsY;
 392
 393       int w, h;
 394       GetSize(&w, &h);
 395
 396       // Recalculate scroll bar range and position
 397     if (m_xScrollLines > 0)
 398         {
 399           m_xScrollPosition = xPos;
 400           SetScrollPos (wxHORIZONTAL, m_xScrollPosition, TRUE);
 401         }
 402     else
 403     {
 404           SetScrollbar(wxHORIZONTAL, 0, 0, 0, FALSE);
 405       m_xScrollPosition = 0;
 406     }
 407
 408     if (m_yScrollLines > 0)
 409         {
 410           m_yScrollPosition = yPos;
 411           SetScrollPos (wxVERTICAL, m_yScrollPosition, TRUE);
 412         }
 413     else
 414     {
 415           SetScrollbar(wxVERTICAL, 0, 0, 0, FALSE);
 416       m_yScrollPosition = 0;
 417     }
 418         AdjustScrollbars();
 419     Refresh();
 420 #ifdef __WXMSW__
 421     ::UpdateWindow ((HWND) GetHWND());
 422 #endif
 423 }
 424
 425
 426 void wxToolBarBase::OnScroll(wxScrollEvent& event)
 427 {
 428   int orient = event.GetOrientation();
 429
 430   int nScrollInc = CalcScrollInc(event);
 431   if (nScrollInc == 0)
 432     return;
 433
 434   if (orient == wxHORIZONTAL)
 435   {
 436     int newPos = m_xScrollPosition + nScrollInc;
 437     SetScrollPos(wxHORIZONTAL, newPos, TRUE );
 438   }
 439   else
 440   {
 441     int newPos = m_yScrollPosition + nScrollInc;
 442     SetScrollPos(wxVERTICAL, newPos, TRUE );
 443   }
 444
 445   if (orient == wxHORIZONTAL)
 446   {
 447     if (m_xScrollingEnabled)
 448       ScrollWindow(-m_xScrollPixelsPerLine * nScrollInc, 0, NULL);
 449     else
 450       Refresh();
 451   }
 452   else
 453   {
 454     if (m_yScrollingEnabled)
 455       ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, NULL);
 456     else
 457       Refresh();
 458   }
 459
 460   if (orient == wxHORIZONTAL)
 461   {
 462     m_xScrollPosition += nScrollInc;
 463   }
 464   else
 465   {
 466     m_yScrollPosition += nScrollInc;
 467   }
 468
 469 }
 470
 471 int wxToolBarBase::CalcScrollInc(wxScrollEvent& event)
 472 {
 473   int pos = event.GetPosition();
 474   int orient = event.GetOrientation();
 475
 476   int nScrollInc = 0;
 477   switch (event.GetEventType())
 478   {
 479     case wxEVT_SCROLL_TOP:
 480     {
 481       if (orient == wxHORIZONTAL)
 482         nScrollInc = - m_xScrollPosition;
 483       else
 484         nScrollInc = - m_yScrollPosition;
 485       break;
 486     }
 487     case wxEVT_SCROLL_BOTTOM:
 488     {
 489       if (orient == wxHORIZONTAL)
 490         nScrollInc = m_xScrollLines - m_xScrollPosition;
 491       else
 492         nScrollInc = m_yScrollLines - m_yScrollPosition;
 493       break;
 494     }
 495     case wxEVT_SCROLL_LINEUP:
 496     {
 497       nScrollInc = -1;
 498       break;
 499     }
 500     case wxEVT_SCROLL_LINEDOWN:
 501     {
 502       nScrollInc = 1;
 503       break;
 504     }
 505     case wxEVT_SCROLL_PAGEUP:
 506     {
 507       if (orient == wxHORIZONTAL)
 508         nScrollInc = -GetScrollPageSize(wxHORIZONTAL);
 509       else
 510         nScrollInc = -GetScrollPageSize(wxVERTICAL);
 511       break;
 512     }
 513     case wxEVT_SCROLL_PAGEDOWN:
 514     {
 515       if (orient == wxHORIZONTAL)
 516         nScrollInc = GetScrollPageSize(wxHORIZONTAL);
 517       else
 518         nScrollInc = GetScrollPageSize(wxVERTICAL);
 519       break;
 520     }
 521     case wxEVT_SCROLL_THUMBTRACK:
 522     {
 523       if (orient == wxHORIZONTAL)
 524         nScrollInc = pos - m_xScrollPosition;
 525       else
 526         nScrollInc = pos - m_yScrollPosition;
 527       break;
 528     }
 529     default:
 530     {
 531       break;
 532     }
 533   }
 534   if (orient == wxHORIZONTAL)
 535   {
 536         int w, h;
 537                 GetClientSize(&w, &h);
 538
 539         int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 540         int noPositions = (int) ( ((nMaxWidth - w)/(float)m_xScrollPixelsPerLine) + 0.5 );
 541         if (noPositions < 0)
 542                 noPositions = 0;
 543
 544                 if ( (m_xScrollPosition + nScrollInc) < 0 )
 545                         nScrollInc = -m_xScrollPosition; // As -ve as we can go
 546                 else if ( (m_xScrollPosition + nScrollInc) > noPositions )
 547                         nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
 548
 549         return nScrollInc;
 550   }
 551   else
 552   {
 553         int w, h;
 554                 GetClientSize(&w, &h);
 555
 556         int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 557         int noPositions = (int) ( ((nMaxHeight - h)/(float)m_yScrollPixelsPerLine) + 0.5 );
 558         if (noPositions < 0)
 559                 noPositions = 0;
 560
 561                 if ( (m_yScrollPosition + nScrollInc) < 0 )
 562                         nScrollInc = -m_yScrollPosition; // As -ve as we can go
 563                 else if ( (m_yScrollPosition + nScrollInc) > noPositions )
 564                         nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go
 565
 566         return nScrollInc;
 567   }
 568 }
 569
 570 // Adjust the scrollbars - new version.
 571 void wxToolBarBase::AdjustScrollbars(void)
 572 {
 573   int w, h;
 574   GetClientSize(&w, &h);
 575
 576   // Recalculate scroll bar range and position
 577   if (m_xScrollLines > 0)
 578   {
 579     int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 580     int newRange = (int) ( ((nMaxWidth)/(float)m_xScrollPixelsPerLine) + 0.5 );
 581     if (newRange < 0)
 582       newRange = 0;
 583
 584     m_xScrollPosition = wxMin(newRange, m_xScrollPosition);
 585
 586         // Calculate page size i.e. number of scroll units you get on the
 587         // current client window
 588     int noPagePositions = (int) ( (w/(float)m_xScrollPixelsPerLine) + 0.5 );
 589     if (noPagePositions < 1)
 590       noPagePositions = 1;
 591
 592     SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, newRange);
 593     SetScrollPageSize(wxHORIZONTAL, noPagePositions);
 594   }
 595   if (m_yScrollLines > 0)
 596   {
 597     int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 598     int newRange = (int) ( ((nMaxHeight)/(float)m_yScrollPixelsPerLine) + 0.5 );
 599     if (newRange < 0)
 600       newRange = 0;
 601
 602     m_yScrollPosition = wxMin(newRange, m_yScrollPosition);
 603
 604         // Calculate page size i.e. number of scroll units you get on the
 605         // current client window
 606     int noPagePositions = (int) ( (h/(float)m_yScrollPixelsPerLine) + 0.5 );
 607     if (noPagePositions < 1)
 608       noPagePositions = 1;
 609
 610     SetScrollbar(wxVERTICAL, m_yScrollPosition, noPagePositions, newRange);
 611     SetScrollPageSize(wxVERTICAL, noPagePositions);
 612   }
 613 }
 614
 615 // Default OnSize resets scrollbars, if any
 616 void wxToolBarBase::OnSize(wxSizeEvent& event)
 617 {
 618 #if wxUSE_CONSTRAINTS
 619   if (GetAutoLayout())
 620     Layout();
 621 #endif
 622
 623   AdjustScrollbars();
 624 }
 625
 626 // Prepare the DC by translating it according to the current scroll position
 627 void wxToolBarBase::PrepareDC(wxDC& dc)
 628 {
 629         dc.SetDeviceOrigin(- m_xScrollPosition * m_xScrollPixelsPerLine, - m_yScrollPosition * m_yScrollPixelsPerLine);
 630 }
 631
 632 void wxToolBarBase::GetScrollPixelsPerUnit (int *x_unit, int *y_unit) const
 633 {
 634       *x_unit = m_xScrollPixelsPerLine;
 635       *y_unit = m_yScrollPixelsPerLine;
 636 }
 637
 638 int wxToolBarBase::GetScrollPageSize(int orient) const
 639 {
 640     if ( orient == wxHORIZONTAL )
 641         return m_xScrollLinesPerPage;
 642     else
 643         return m_yScrollLinesPerPage;
 644 }
 645
 646 void wxToolBarBase::SetScrollPageSize(int orient, int pageSize)
 647 {
 648     if ( orient == wxHORIZONTAL )
 649         m_xScrollLinesPerPage = pageSize;
 650     else
 651         m_yScrollLinesPerPage = pageSize;
 652 }
 653
 654 /*
 655  * Scroll to given position (scroll position, not pixel position)
 656  */
 657 void wxToolBarBase::Scroll (int x_pos, int y_pos)
 658 {
 659   int old_x, old_y;
 660   ViewStart (&old_x, &old_y);
 661   if (((x_pos == -1) || (x_pos == old_x)) && ((y_pos == -1) || (y_pos == old_y)))
 662     return;
 663
 664   if (x_pos > -1)
 665     {
 666       m_xScrollPosition = x_pos;
 667       SetScrollPos (wxHORIZONTAL, x_pos, TRUE);
 668     }
 669   if (y_pos > -1)
 670     {
 671       m_yScrollPosition = y_pos;
 672       SetScrollPos (wxVERTICAL, y_pos, TRUE);
 673     }
 674   Refresh();
 675 #ifdef __WXMSW__
 676   UpdateWindow ((HWND) GetHWND());
 677 #endif
 678 }
 679
 680 void wxToolBarBase::EnableScrolling (bool x_scroll, bool y_scroll)
 681 {
 682   m_xScrollingEnabled = x_scroll;
 683   m_yScrollingEnabled = y_scroll;
 684 }
 685
 686 void wxToolBarBase::GetVirtualSize (int *x, int *y) const
 687 {
 688       *x = m_xScrollPixelsPerLine * m_xScrollLines;
 689       *y = m_yScrollPixelsPerLine * m_yScrollLines;
 690 }
 691
 692 // Where the current view starts from
 693 void wxToolBarBase::ViewStart (int *x, int *y) const
 694 {
 695   *x = m_xScrollPosition;
 696   *y = m_yScrollPosition;
 697 }
 698
 699 void wxToolBarBase::OnIdle(wxIdleEvent& event)
 700 {
 701     wxWindow::OnIdle(event);
 702
 703         DoToolbarUpdates();
 704 }
 705
 706 // Do the toolbar button updates (check for EVT_UPDATE_UI handlers)
 707 void wxToolBarBase::DoToolbarUpdates(void)
 708 {
 709         wxNode* node = GetTools().First();
 710         while (node)
 711         {
 712                 wxToolBarTool* tool = (wxToolBarTool* ) node->Data();
 713
 714                 wxUpdateUIEvent event(tool->m_index);
 715                 event.SetEventObject(this);
 716
 717                 if (GetEventHandler()->ProcessEvent(event))
 718                 {
 719                         if (event.GetSetEnabled())
 720                                 EnableTool(tool->m_index, event.GetEnabled());
 721                         if (event.GetSetChecked())
 722                                 ToggleTool(tool->m_index, event.GetChecked());
 723 /*
 724                         if (event.GetSetText())
 725                                 // Set tooltip?
 726 */
 727                 }
 728
 729                 node = node->Next();
 730         }
 731 }
 732
 733 #ifdef __WXMSW__
 734 // Circumvent wxControl::MSWOnMouseMove which doesn't set the cursor.
 735 void wxToolBarBase::MSWOnMouseMove(int x, int y, WXUINT flags)
 736 {
 737     wxWindow::MSWOnMouseMove(x, y, flags);
 738 }
 739 #endif
 740
 741 #endif