src/motif/toolbar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        motif/toolbar.cpp
   3 // Purpose:     wxToolBar
   4 // Author:      Julian Smart
   5 // Modified by: 13.12.99 by VZ during toolbar classes reorganization
   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 #ifdef __GNUG__
  21     #pragma implementation "toolbar.h"
  22 #endif
  23
  24 #ifdef __VMS
  25 #define XtDisplay XTDISPLAY
  26 #endif
  27
  28 #include "wx/settings.h"
  29 #include "wx/app.h"
  30 #include "wx/timer.h"
  31 #include "wx/toolbar.h"
  32 #include "wx/frame.h"
  33
  34 #ifdef __VMS__
  35 #pragma message disable nosimpint
  36 #endif
  37 #include <Xm/Xm.h>
  38 #include <Xm/PushBG.h>
  39 #include <Xm/PushB.h>
  40 #include <Xm/Label.h>
  41 #include <Xm/ToggleB.h>
  42 #include <Xm/ToggleBG.h>
  43 #include <Xm/Form.h>
  44 #ifdef __VMS__
  45 #pragma message enable nosimpint
  46 #endif
  47
  48 #include "wx/motif/private.h"
  49 #include "wx/motif/bmpmotif.h"
  50
  51 // ----------------------------------------------------------------------------
  52 // wxWin macros
  53 // ----------------------------------------------------------------------------
  54
  55 #if !USE_SHARED_LIBRARY
  56 IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxToolBarBase)
  57 #endif
  58
  59 // ----------------------------------------------------------------------------
  60 // private functions
  61 // ----------------------------------------------------------------------------
  62
  63 static void wxToolButtonCallback (Widget w, XtPointer clientData,
  64                     XtPointer ptr);
  65 static void wxToolButtonPopupCallback (Widget w, XtPointer client_data,
  66                      XEvent *event, Boolean *continue_to_dispatch);
  67
  68 // ----------------------------------------------------------------------------
  69 // private classes
  70 // ----------------------------------------------------------------------------
  71
  72 class wxToolBarTimer : public wxTimer
  73 {
  74 public:
  75     virtual void Notify();
  76
  77     static Widget help_popup;
  78     static Widget buttonWidget;
  79     static wxString helpString;
  80 };
  81
  82 class wxToolBarTool : public wxToolBarToolBase
  83 {
  84 public:
  85     wxToolBarTool(wxToolBar *tbar,
  86                   int id,
  87                   const wxString& label,
  88                   const wxBitmap& bmpNormal,
  89                   const wxBitmap& bmpToggled,
  90                   wxItemKind kind,
  91                   wxObject *clientData,
  92                   const wxString& shortHelp,
  93                   const wxString& longHelp)
  94         : wxToolBarToolBase(tbar, id, label, bmpNormal, bmpToggled, kind,
  95                             clientData, shortHelp, longHelp)
  96     {
  97         Init();
  98     }
  99
 100     wxToolBarTool(wxToolBar *tbar, wxControl *control)
 101         : wxToolBarToolBase(tbar, control)
 102     {
 103         Init();
 104     }
 105
 106     virtual ~wxToolBarTool();
 107
 108     // accessors
 109     void SetWidget(Widget widget) { m_widget = widget; }
 110     Widget GetButtonWidget() const { return m_widget; }
 111
 112     Pixmap GetArmPixmap()
 113     {
 114         m_bitmapCache.SetBitmap( GetNormalBitmap() );
 115         return (Pixmap)m_bitmapCache.GetArmPixmap( (WXWidget)m_widget );
 116     }
 117
 118     Pixmap GetInsensPixmap()
 119     {
 120         m_bitmapCache.SetBitmap( GetNormalBitmap() );
 121         return (Pixmap)m_bitmapCache.GetInsensPixmap( (WXWidget)m_widget );
 122     }
 123 protected:
 124     void Init();
 125
 126     Widget m_widget;
 127     wxBitmapCache m_bitmapCache;
 128 };
 129
 130 // ----------------------------------------------------------------------------
 131 // globals
 132 // ----------------------------------------------------------------------------
 133
 134 static wxToolBarTimer* wxTheToolBarTimer = (wxToolBarTimer*) NULL;
 135
 136 Widget wxToolBarTimer::help_popup = (Widget) 0;
 137 Widget wxToolBarTimer::buttonWidget = (Widget) 0;
 138 wxString wxToolBarTimer::helpString;
 139
 140 // ============================================================================
 141 // implementation
 142 // ============================================================================
 143
 144 // ----------------------------------------------------------------------------
 145 // wxToolBarTool
 146 // ----------------------------------------------------------------------------
 147
 148 wxToolBarToolBase *wxToolBar::CreateTool(int id,
 149                                          const wxString& label,
 150                                          const wxBitmap& bmpNormal,
 151                                          const wxBitmap& bmpToggled,
 152                                          wxItemKind kind,
 153                                          wxObject *clientData,
 154                                          const wxString& shortHelp,
 155                                          const wxString& longHelp)
 156 {
 157     return new wxToolBarTool(this, id, label, bmpNormal, bmpToggled, kind,
 158                              clientData, shortHelp, longHelp);
 159 }
 160
 161
 162 wxToolBarToolBase *wxToolBar::CreateTool(wxControl *control)
 163 {
 164     return new wxToolBarTool(this, control);
 165 }
 166
 167 void wxToolBarTool::Init()
 168 {
 169     m_widget = (Widget)0;
 170 }
 171
 172 wxToolBarTool::~wxToolBarTool()
 173 {
 174     if ( m_widget )
 175         XtDestroyWidget(m_widget);
 176 }
 177
 178 // ----------------------------------------------------------------------------
 179 // wxToolBar construction
 180 // ----------------------------------------------------------------------------
 181
 182 void wxToolBar::Init()
 183 {
 184     m_maxWidth = -1;
 185     m_maxHeight = -1;
 186     m_defaultWidth = 24;
 187     m_defaultHeight = 22;
 188     m_toolPacking = 2;
 189     m_toolSeparation = 8;
 190     m_xMargin = 2;
 191     m_yMargin = 2;
 192     m_maxRows = 100;
 193     m_maxCols = 100;
 194 }
 195
 196 bool wxToolBar::Create(wxWindow *parent,
 197                        wxWindowID id,
 198                        const wxPoint& pos,
 199                        const wxSize& size,
 200                        long style,
 201                        const wxString& name)
 202 {
 203     if( !wxControl::CreateControl( parent, id, pos, size, style,
 204                                    wxDefaultValidator, name ) )
 205         return FALSE;
 206
 207     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 208
 209     Widget parentWidget = (Widget) parent->GetClientWidget();
 210
 211     Widget toolbar = XtVaCreateManagedWidget("toolbar",
 212                     xmBulletinBoardWidgetClass, (Widget) parentWidget,
 213                     XmNmarginWidth, 0,
 214                     XmNmarginHeight, 0,
 215                     XmNresizePolicy, XmRESIZE_NONE,
 216                     NULL);
 217 /*
 218     Widget toolbar = XtVaCreateManagedWidget("toolbar",
 219                 xmFormWidgetClass, (Widget) m_clientWidget,
 220                 XmNtraversalOn, False,
 221                 XmNhorizontalSpacing, 0,
 222                 XmNverticalSpacing, 0,
 223                 XmNleftOffset, 0,
 224                 XmNrightOffset, 0,
 225                 XmNmarginWidth, 0,
 226                 XmNmarginHeight, 0,
 227                 NULL);
 228 */
 229
 230     m_mainWidget = (WXWidget) toolbar;
 231
 232     ChangeFont(FALSE);
 233
 234     wxPoint rPos = pos;
 235     wxSize  rSize = size;
 236
 237     if( rPos.x == -1 ) rPos.x = 0;
 238     if( rPos.y == -1 ) rPos.y = 0;
 239     if( rSize.x == -1 && GetParent() )
 240         rSize.x = GetParent()->GetSize().x;
 241
 242     SetCanAddEventHandler(TRUE);
 243     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 244                   rPos.x, rPos.y, rSize.x, rSize.y);
 245
 246     ChangeBackgroundColour();
 247
 248     return TRUE;
 249 }
 250
 251 wxToolBar::~wxToolBar()
 252 {
 253     delete wxTheToolBarTimer;
 254     wxTheToolBarTimer = NULL;
 255 }
 256
 257 bool wxToolBar::Realize()
 258 {
 259     if ( m_tools.GetCount() == 0 )
 260     {
 261         // nothing to do
 262         return TRUE;
 263     }
 264
 265     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 266
 267     // Separator spacing
 268     const int separatorSize = GetToolSeparation(); // 8;
 269     wxSize margins = GetToolMargins();
 270     int packing = GetToolPacking();
 271     int marginX = margins.x;
 272     int marginY = margins.y;
 273
 274     int currentX = marginX;
 275     int currentY = marginY;
 276
 277     int buttonHeight = 0, buttonWidth = 0;
 278
 279     int currentSpacing = 0;
 280
 281     Widget button;
 282     Pixmap pixmap, insensPixmap;
 283     wxBitmap bmp, insensBmp;
 284
 285     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 286     while ( node )
 287     {
 288         wxToolBarTool *tool = (wxToolBarTool *)node->GetData();
 289
 290         switch ( tool->GetStyle() )
 291         {
 292             case wxTOOL_STYLE_CONTROL:
 293             {
 294                 wxControl* control = tool->GetControl();
 295                 wxSize sz = control->GetSize();
 296                 wxPoint pos = control->GetPosition();
 297                 // Allow a control to specify a y[x]-offset by setting
 298                 // its initial position, but still don't allow it to
 299                 // position itself above the top[left] margin.
 300                 int controlY = (pos.y > 0) ? pos.y : currentY;
 301                 int controlX = (pos.x > 0) ? pos.x : currentX;
 302                 control->Move( isVertical ? controlX : currentX,
 303                                isVertical ? currentY : controlY );
 304                 if ( isVertical )
 305                     currentY += sz.y + packing;
 306                 else
 307                     currentX += sz.x + packing;
 308
 309                 break;
 310             }
 311             case wxTOOL_STYLE_SEPARATOR:
 312                 // skip separators for vertical toolbars
 313                 if( !isVertical )
 314                 {
 315                     currentX += separatorSize;
 316                 }
 317                 break;
 318
 319             case wxTOOL_STYLE_BUTTON:
 320                 button = (Widget) 0;
 321
 322                 if ( tool->CanBeToggled() && !tool->GetButtonWidget() )
 323                 {
 324                     button = XtVaCreateWidget("toggleButton",
 325                             xmToggleButtonWidgetClass, (Widget) m_mainWidget,
 326                             XmNx, currentX, XmNy, currentY,
 327                             XmNindicatorOn, False,
 328                             XmNshadowThickness, 2,
 329                             XmNborderWidth, 0,
 330                             XmNspacing, 0,
 331                             XmNmarginWidth, 0,
 332                             XmNmarginHeight, 0,
 333                             XmNmultiClick, XmMULTICLICK_KEEP,
 334                             XmNlabelType, XmPIXMAP,
 335                             NULL);
 336                     XtAddCallback ((Widget) button,
 337                                    XmNvalueChangedCallback,
 338                                    (XtCallbackProc) wxToolButtonCallback,
 339                                    (XtPointer) this);
 340
 341                     XtVaSetValues ((Widget) button,
 342                                    XmNselectColor,
 343                                    m_backgroundColour.AllocColour
 344                                        (XtDisplay((Widget) button)),
 345                                    NULL);
 346                 }
 347                 else if( !tool->GetButtonWidget() )
 348                 {
 349                     button = XtVaCreateWidget("button",
 350                             xmPushButtonWidgetClass, (Widget) m_mainWidget,
 351                             XmNx, currentX, XmNy, currentY,
 352                             XmNpushButtonEnabled, True,
 353                             XmNmultiClick, XmMULTICLICK_KEEP,
 354                             XmNlabelType, XmPIXMAP,
 355                             NULL);
 356                     XtAddCallback (button,
 357                                    XmNactivateCallback,
 358                                    (XtCallbackProc) wxToolButtonCallback,
 359                                    (XtPointer) this);
 360                 }
 361
 362                 if( !tool->GetButtonWidget() )
 363                 {
 364                     DoChangeBackgroundColour((WXWidget) button,
 365                                              m_backgroundColour, TRUE);
 366
 367                     tool->SetWidget(button);
 368                 }
 369                 else
 370                 {
 371                     button = (Widget)tool->GetButtonWidget();
 372                     XtVaSetValues( button,
 373                                    XmNx, currentX, XmNy, currentY,
 374                                    NULL );
 375                 }
 376
 377                 // For each button, if there is a mask, we must create
 378                 // a new wxBitmap that has the correct background colour
 379                 // for the button. Otherwise the background will just be
 380                 // e.g. black if a transparent XPM has been loaded.
 381                 bmp = tool->GetNormalBitmap();
 382                 insensBmp = tool->GetDisabledBitmap();
 383                 if ( bmp.GetMask() || insensBmp.GetMask() )
 384                 {
 385                     int backgroundPixel;
 386                     XtVaGetValues(button, XmNbackground, &backgroundPixel,
 387                                   NULL);
 388
 389                     wxColour col;
 390                     col.SetPixel(backgroundPixel);
 391
 392                     if( bmp.GetMask() )
 393                     {
 394                         bmp = wxCreateMaskedBitmap(bmp, col);
 395                         tool->SetNormalBitmap(bmp);
 396                     }
 397
 398                     if( insensBmp.GetMask() )
 399                     {
 400                         insensBmp = wxCreateMaskedBitmap(insensBmp, col);
 401                         tool->SetDisabledBitmap(insensBmp);
 402                     }
 403                 }
 404
 405                 // Create a selected/toggled bitmap. If there isn't a 2nd
 406                 // bitmap, we need to create it (with a darker, selected
 407                 // background)
 408                 int backgroundPixel;
 409                 if ( tool->CanBeToggled() )
 410                     XtVaGetValues(button, XmNselectColor, &backgroundPixel,
 411                                   NULL);
 412                 else
 413                     XtVaGetValues(button, XmNarmColor, &backgroundPixel,
 414                                   NULL);
 415                 wxColour col;
 416                 col.SetPixel(backgroundPixel);
 417
 418                 pixmap = (Pixmap) bmp.GetPixmap();
 419                 {
 420                     wxBitmap tmp = tool->GetDisabledBitmap();
 421
 422                     insensPixmap = tmp.Ok() ?
 423                             (Pixmap)tmp.GetPixmap() :
 424                             tool->GetInsensPixmap();
 425                 }
 426
 427                 if (tool->CanBeToggled())
 428                 {
 429                     // Toggle button
 430                     Pixmap pixmap2 = tool->GetArmPixmap();
 431                     Pixmap insensPixmap2 = tool->GetInsensPixmap();
 432
 433                     XtVaSetValues (button,
 434                             XmNfillOnSelect, True,
 435                             XmNlabelPixmap, pixmap,
 436                             XmNselectPixmap, pixmap2,
 437                             XmNlabelInsensitivePixmap, insensPixmap,
 438                             XmNselectInsensitivePixmap, insensPixmap2,
 439                             XmNlabelType, XmPIXMAP,
 440                             NULL);
 441                 }
 442                 else
 443                 {
 444                     Pixmap pixmap2 = tool->GetArmPixmap();
 445
 446                     // Normal button
 447                     XtVaSetValues(button,
 448                             XmNlabelPixmap, pixmap,
 449                             XmNlabelInsensitivePixmap, insensPixmap,
 450                             XmNarmPixmap, pixmap2,
 451                             NULL);
 452                 }
 453
 454                 XtManageChild(button);
 455
 456                 {
 457                     Dimension width, height;
 458                     XtVaGetValues(button,
 459                                   XmNwidth, &width,
 460                                   XmNheight, & height,
 461                                   NULL);
 462                     if ( isVertical )
 463                         currentY += height + packing;
 464                     else
 465                         currentX += width + packing;
 466                     buttonHeight = wxMax(buttonHeight, height);
 467                     buttonWidth = wxMax(buttonWidth, width);
 468                 }
 469
 470                 XtAddEventHandler (button, EnterWindowMask | LeaveWindowMask,
 471                         False, wxToolButtonPopupCallback, (XtPointer) this);
 472
 473                 currentSpacing = 0;
 474                 break;
 475         }
 476
 477         node = node->GetNext();
 478     }
 479
 480     SetSize( -1, -1,
 481              isVertical ? buttonWidth + 2 * marginX : -1,
 482              isVertical ? -1 : buttonHeight +  2*marginY );
 483
 484     return TRUE;
 485 }
 486
 487 wxToolBarToolBase *wxToolBar::FindToolForPosition(wxCoord WXUNUSED(x),
 488                                                   wxCoord WXUNUSED(y)) const
 489 {
 490     wxFAIL_MSG( _T("TODO") );
 491
 492     return (wxToolBarToolBase *)NULL;
 493 }
 494
 495 bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos), wxToolBarToolBase *tool)
 496 {
 497     tool->Attach(this);
 498
 499     return TRUE;
 500 }
 501
 502 bool wxToolBar::DoDeleteTool(size_t pos, wxToolBarToolBase *tool)
 503 {
 504     tool->Detach();
 505
 506     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 507     const int separatorSize = GetToolSeparation(); // 8;
 508     int packing = GetToolPacking();
 509     int offset = 0;
 510
 511     for( wxToolBarToolsList::Node *node = m_tools.GetFirst();
 512          node; node = node->GetNext() )
 513     {
 514         wxToolBarTool *t = (wxToolBarTool*)node->GetData();
 515
 516         if( t == tool )
 517         {
 518             switch ( t->GetStyle() )
 519             {
 520             case wxTOOL_STYLE_CONTROL:
 521             {
 522                 wxSize size = t->GetControl()->GetSize();
 523                 offset = isVertical ? size.y : size.x;
 524                 offset += packing;
 525                 break;
 526             }
 527             case wxTOOL_STYLE_SEPARATOR:
 528                 offset = isVertical ? 0 : separatorSize;
 529                 break;
 530             case wxTOOL_STYLE_BUTTON:
 531             {
 532                 Widget w = t->GetButtonWidget();
 533                 Dimension width, height;
 534
 535                 XtVaGetValues( w,
 536                                XmNwidth, &width,
 537                                XmNheight, &height,
 538                                NULL );
 539
 540                 offset = isVertical ? height : width;
 541                 offset += packing;
 542                 break;
 543             }
 544             }
 545         }
 546         else if( offset )
 547         {
 548             switch ( t->GetStyle() )
 549             {
 550             case wxTOOL_STYLE_CONTROL:
 551             {
 552                 wxPoint pos = t->GetControl()->GetPosition();
 553
 554                 if( isVertical )
 555                     pos.y -= offset;
 556                 else
 557                     pos.x -= offset;
 558
 559                 t->GetControl()->Move( pos );
 560                 break;
 561             }
 562             case wxTOOL_STYLE_SEPARATOR:
 563                 break;
 564             case wxTOOL_STYLE_BUTTON:
 565             {
 566                 Dimension x, y;
 567                 XtVaGetValues( t->GetButtonWidget(),
 568                                XmNx, &x,
 569                                XmNy, &y,
 570                                NULL );
 571
 572                 if( isVertical )
 573                     y -= offset;
 574                 else
 575                     x -= offset;
 576
 577                 XtVaSetValues( t->GetButtonWidget(),
 578                                XmNx, x,
 579                                XmNy, y,
 580                                NULL );
 581                 break;
 582             }
 583             }
 584         }
 585     }
 586
 587     return TRUE;
 588 }
 589
 590 void wxToolBar::DoEnableTool(wxToolBarToolBase *toolBase, bool enable)
 591 {
 592     wxToolBarTool *tool = (wxToolBarTool *)toolBase;
 593
 594     XtSetSensitive(tool->GetButtonWidget(), (Boolean) enable);
 595 }
 596
 597 void wxToolBar::DoToggleTool(wxToolBarToolBase *toolBase, bool toggle)
 598 {
 599     wxToolBarTool *tool = (wxToolBarTool *)toolBase;
 600
 601     XmToggleButtonSetState(tool->GetButtonWidget(), (Boolean) toggle, False);
 602 }
 603
 604 void wxToolBar::DoSetToggle(wxToolBarToolBase * WXUNUSED(tool),
 605                             bool WXUNUSED(toggle))
 606 {
 607     // nothing to do
 608 }
 609
 610 void wxToolBar::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 611 {
 612     int old_width, old_height;
 613     GetSize(&old_width, &old_height);
 614
 615     // Correct width and height if needed.
 616     if ( width == -1 || height == -1 )
 617     {
 618         wxSize defaultSize = GetSize();
 619
 620         if ( width == -1 )
 621             width = defaultSize.x;
 622         if ( height == -1 )
 623             height = defaultSize.y;
 624     }
 625
 626     wxToolBarBase::DoSetSize(x, y, width, height, sizeFlags);
 627
 628     // We must refresh the frame size when the toolbar changes size
 629     // otherwise the toolbar can be shown incorrectly
 630     if ( old_width != width || old_height != height )
 631     {
 632         // But before we send the size event check it
 633         // we have a frame that is not being deleted.
 634         wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 635         if ( frame && !frame->IsBeingDeleted() )
 636         {
 637             frame->SendSizeEvent();
 638         }
 639     }
 640 }
 641
 642 // ----------------------------------------------------------------------------
 643 // Motif callbacks
 644 // ----------------------------------------------------------------------------
 645
 646 wxToolBarToolBase *wxToolBar::FindToolByWidget(WXWidget w) const
 647 {
 648     wxToolBarToolsList::Node* node = m_tools.GetFirst();
 649     while ( node )
 650     {
 651         wxToolBarTool *tool = (wxToolBarTool *)node->GetData();
 652         if ( tool->GetButtonWidget() == w)
 653         {
 654             return tool;
 655         }
 656
 657         node = node->GetNext();
 658     }
 659
 660     return (wxToolBarToolBase *)NULL;
 661 }
 662
 663 static void wxToolButtonCallback(Widget w,
 664                                  XtPointer clientData,
 665                                  XtPointer WXUNUSED(ptr))
 666 {
 667     wxToolBar *toolBar = (wxToolBar *) clientData;
 668     wxToolBarToolBase *tool = toolBar->FindToolByWidget((WXWidget) w);
 669     if ( !tool )
 670         return;
 671
 672     if ( tool->CanBeToggled() )
 673         tool->Toggle();
 674
 675     if ( !toolBar->OnLeftClick(tool->GetId(), tool->IsToggled()) )
 676     {
 677         // revert
 678         tool->Toggle();
 679     }
 680 }
 681
 682
 683 static void wxToolButtonPopupCallback(Widget w,
 684                                       XtPointer client_data,
 685                                       XEvent *event,
 686                                       Boolean *WXUNUSED(continue_to_dispatch))
 687 {
 688     // TODO: retrieve delay before popping up tooltip from wxSystemSettings.
 689     static const int delayMilli = 800;
 690
 691     wxToolBar* toolBar = (wxToolBar*) client_data;
 692     wxToolBarToolBase *tool = toolBar->FindToolByWidget((WXWidget) w);
 693
 694     if ( !tool )
 695         return;
 696
 697     wxString tooltip = tool->GetShortHelp();
 698     if ( !tooltip )
 699         return;
 700
 701     if (!wxTheToolBarTimer)
 702         wxTheToolBarTimer = new wxToolBarTimer;
 703
 704     wxToolBarTimer::buttonWidget = w;
 705     wxToolBarTimer::helpString = tooltip;
 706
 707     /************************************************************/
 708     /* Popup help label                                         */
 709     /************************************************************/
 710     if (event->type == EnterNotify)
 711     {
 712         if (wxToolBarTimer::help_popup != (Widget) 0)
 713         {
 714             XtDestroyWidget (wxToolBarTimer::help_popup);
 715             XtPopdown (wxToolBarTimer::help_popup);
 716         }
 717         wxToolBarTimer::help_popup = (Widget) 0;
 718
 719         // One shot
 720         wxTheToolBarTimer->Start(delayMilli, TRUE);
 721
 722     }
 723     /************************************************************/
 724     /* Popdown help label                                       */
 725     /************************************************************/
 726     else if (event->type == LeaveNotify)
 727     {
 728         if (wxTheToolBarTimer)
 729             wxTheToolBarTimer->Stop();
 730         if (wxToolBarTimer::help_popup != (Widget) 0)
 731         {
 732             XtDestroyWidget (wxToolBarTimer::help_popup);
 733             XtPopdown (wxToolBarTimer::help_popup);
 734         }
 735         wxToolBarTimer::help_popup = (Widget) 0;
 736     }
 737 }
 738
 739 void wxToolBarTimer::Notify()
 740 {
 741     Position x, y;
 742
 743         /************************************************************/
 744         /* Create shell without window decorations                  */
 745         /************************************************************/
 746         help_popup = XtVaCreatePopupShell ("shell",
 747                                            overrideShellWidgetClass, (Widget) wxTheApp->GetTopLevelWidget(),
 748                                            NULL);
 749
 750         /************************************************************/
 751         /* Get absolute position on display of toolbar button       */
 752         /************************************************************/
 753         XtTranslateCoords (buttonWidget,
 754                            (Position) 0,
 755                            (Position) 0,
 756                            &x, &y);
 757
 758         // Move the tooltip more or less above the button
 759         int yOffset = 20; // TODO: What should be really?
 760         y -= yOffset;
 761         if (y < yOffset) y = 0;
 762
 763         /************************************************************/
 764         /* Set the position of the help popup                       */
 765         /************************************************************/
 766         XtVaSetValues (help_popup,
 767                        XmNx, (Position) x,
 768                        XmNy, (Position) y,
 769                        NULL);
 770
 771         /************************************************************/
 772         /* Create help label                                        */
 773         /************************************************************/
 774         XmString text = XmStringCreateSimple ((char*) (const char*) helpString);
 775         XtVaCreateManagedWidget ("help_label",
 776                                  xmLabelWidgetClass, help_popup,
 777                                  XmNlabelString, text,
 778                                  XtVaTypedArg,
 779                                  XmNforeground, XtRString, "black",
 780                                                 strlen("black")+1,
 781                                  XtVaTypedArg,
 782                                  XmNbackground, XtRString, "LightGoldenrod",
 783                                                 strlen("LightGoldenrod")+1,
 784                                  NULL);
 785         XmStringFree (text);
 786
 787         /************************************************************/
 788         /* Popup help label                                         */
 789         /************************************************************/
 790         XtPopup (help_popup, XtGrabNone);
 791 }
 792