src/motif/toolbar.cpp

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