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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "toolbar.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __VMS
  28 #define XtDisplay XTDISPLAY
  29 #endif
  30
  31 #include "wx/settings.h"
  32 #include "wx/app.h"
  33 #include "wx/timer.h"
  34 #include "wx/toolbar.h"
  35 #include "wx/frame.h"
  36
  37 #ifdef __VMS__
  38 #pragma message disable nosimpint
  39 #endif
  40 #include <Xm/Xm.h>
  41 #include <Xm/PushBG.h>
  42 #include <Xm/PushB.h>
  43 #include <Xm/Label.h>
  44 #include <Xm/ToggleB.h>
  45 #include <Xm/ToggleBG.h>
  46 #include <Xm/Form.h>
  47 #ifdef __VMS__
  48 #pragma message enable nosimpint
  49 #endif
  50
  51 #include "wx/motif/private.h"
  52 #include "wx/motif/bmpmotif.h"
  53
  54 // ----------------------------------------------------------------------------
  55 // wxWin macros
  56 // ----------------------------------------------------------------------------
  57
  58 #if !USE_SHARED_LIBRARY
  59 IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxControl)
  60 #endif
  61
  62 // ----------------------------------------------------------------------------
  63 // private functions
  64 // ----------------------------------------------------------------------------
  65
  66 static void wxToolButtonCallback (Widget w, XtPointer clientData,
  67                     XtPointer ptr);
  68 static void wxToolButtonPopupCallback (Widget w, XtPointer client_data,
  69                      XEvent *event, Boolean *continue_to_dispatch);
  70
  71 // ----------------------------------------------------------------------------
  72 // private classes
  73 // ----------------------------------------------------------------------------
  74
  75 class wxToolBarTimer : public wxTimer
  76 {
  77 public:
  78     virtual void Notify();
  79
  80     static Widget help_popup;
  81     static Widget buttonWidget;
  82     static wxString helpString;
  83 };
  84
  85 class wxToolBarTool : public wxToolBarToolBase
  86 {
  87 public:
  88     wxToolBarTool(wxToolBar *tbar,
  89                   int id,
  90                   const wxString& label,
  91                   const wxBitmap& bmpNormal,
  92                   const wxBitmap& bmpToggled,
  93                   wxItemKind kind,
  94                   wxObject *clientData,
  95                   const wxString& shortHelp,
  96                   const wxString& longHelp)
  97         : wxToolBarToolBase(tbar, id, label, bmpNormal, bmpToggled, kind,
  98                             clientData, shortHelp, longHelp)
  99     {
 100         Init();
 101     }
 102
 103     wxToolBarTool(wxToolBar *tbar, wxControl *control)
 104         : wxToolBarToolBase(tbar, control)
 105     {
 106         Init();
 107     }
 108
 109     virtual ~wxToolBarTool();
 110
 111     // accessors
 112     void SetWidget(Widget widget) { m_widget = widget; }
 113     Widget GetButtonWidget() const { return m_widget; }
 114
 115     Pixmap GetArmPixmap()
 116     {
 117         m_bitmapCache.SetBitmap( GetNormalBitmap() );
 118         return (Pixmap)m_bitmapCache.GetArmPixmap( (WXWidget)m_widget );
 119     }
 120
 121     Pixmap GetInsensPixmap()
 122     {
 123         m_bitmapCache.SetBitmap( GetNormalBitmap() );
 124         return (Pixmap)m_bitmapCache.GetInsensPixmap( (WXWidget)m_widget );
 125     }
 126 protected:
 127     void Init();
 128
 129     Widget m_widget;
 130     wxBitmapCache m_bitmapCache;
 131 };
 132
 133 // ----------------------------------------------------------------------------
 134 // globals
 135 // ----------------------------------------------------------------------------
 136
 137 static wxToolBarTimer* wxTheToolBarTimer = (wxToolBarTimer*) NULL;
 138
 139 Widget wxToolBarTimer::help_popup = (Widget) 0;
 140 Widget wxToolBarTimer::buttonWidget = (Widget) 0;
 141 wxString wxToolBarTimer::helpString;
 142
 143 // ============================================================================
 144 // implementation
 145 // ============================================================================
 146
 147 // ----------------------------------------------------------------------------
 148 // wxToolBarTool
 149 // ----------------------------------------------------------------------------
 150
 151 wxToolBarToolBase *wxToolBar::CreateTool(int id,
 152                                          const wxString& label,
 153                                          const wxBitmap& bmpNormal,
 154                                          const wxBitmap& bmpToggled,
 155                                          wxItemKind kind,
 156                                          wxObject *clientData,
 157                                          const wxString& shortHelp,
 158                                          const wxString& longHelp)
 159 {
 160     return new wxToolBarTool(this, id, label, bmpNormal, bmpToggled, kind,
 161                              clientData, shortHelp, longHelp);
 162 }
 163
 164
 165 wxToolBarToolBase *wxToolBar::CreateTool(wxControl *control)
 166 {
 167     return new wxToolBarTool(this, control);
 168 }
 169
 170 void wxToolBarTool::Init()
 171 {
 172     m_widget = (Widget)0;
 173 }
 174
 175 wxToolBarTool::~wxToolBarTool()
 176 {
 177     if ( m_widget )
 178         XtDestroyWidget(m_widget);
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // wxToolBar construction
 183 // ----------------------------------------------------------------------------
 184
 185 void wxToolBar::Init()
 186 {
 187     m_maxWidth = -1;
 188     m_maxHeight = -1;
 189     m_defaultWidth = 24;
 190     m_defaultHeight = 22;
 191     m_toolPacking = 2;
 192     m_toolSeparation = 8;
 193     m_xMargin = 2;
 194     m_yMargin = 2;
 195     m_maxRows = 100;
 196     m_maxCols = 100;
 197 }
 198
 199 bool wxToolBar::Create(wxWindow *parent,
 200                        wxWindowID id,
 201                        const wxPoint& pos,
 202                        const wxSize& size,
 203                        long style,
 204                        const wxString& name)
 205 {
 206     if( !wxControl::CreateControl( parent, id, pos, size, style,
 207                                    wxDefaultValidator, name ) )
 208         return FALSE;
 209
 210     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 211
 212     Widget parentWidget = (Widget) parent->GetClientWidget();
 213
 214     Widget toolbar = XtVaCreateManagedWidget("toolbar",
 215                     xmBulletinBoardWidgetClass, (Widget) parentWidget,
 216                     XmNmarginWidth, 0,
 217                     XmNmarginHeight, 0,
 218                     XmNresizePolicy, XmRESIZE_NONE,
 219                     NULL);
 220 /*
 221     Widget toolbar = XtVaCreateManagedWidget("toolbar",
 222                 xmFormWidgetClass, (Widget) m_clientWidget,
 223                 XmNtraversalOn, False,
 224                 XmNhorizontalSpacing, 0,
 225                 XmNverticalSpacing, 0,
 226                 XmNleftOffset, 0,
 227                 XmNrightOffset, 0,
 228                 XmNmarginWidth, 0,
 229                 XmNmarginHeight, 0,
 230                 NULL);
 231 */
 232
 233     m_mainWidget = (WXWidget) toolbar;
 234
 235     ChangeFont(FALSE);
 236
 237     wxPoint rPos = pos;
 238     wxSize  rSize = size;
 239
 240     if( rPos.x == -1 ) rPos.x = 0;
 241     if( rPos.y == -1 ) rPos.y = 0;
 242     if( rSize.x == -1 && GetParent() )
 243         rSize.x = GetParent()->GetSize().x;
 244
 245     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 246                   rPos.x, rPos.y, rSize.x, rSize.y);
 247
 248     ChangeBackgroundColour();
 249
 250     return TRUE;
 251 }
 252
 253 wxToolBar::~wxToolBar()
 254 {
 255     delete wxTheToolBarTimer;
 256     wxTheToolBarTimer = NULL;
 257 }
 258
 259 bool wxToolBar::Realize()
 260 {
 261     if ( m_tools.GetCount() == 0 )
 262     {
 263         // nothing to do
 264         return TRUE;
 265     }
 266
 267     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 268
 269     // Separator spacing
 270     const int separatorSize = GetToolSeparation(); // 8;
 271     wxSize margins = GetToolMargins();
 272     int packing = GetToolPacking();
 273     int marginX = margins.x;
 274     int marginY = margins.y;
 275
 276     int currentX = marginX;
 277     int currentY = marginY;
 278
 279     int buttonHeight = 0, buttonWidth = 0;
 280
 281     int currentSpacing = 0;
 282
 283     Widget button;
 284     Pixmap pixmap, insensPixmap;
 285     wxBitmap bmp, insensBmp;
 286
 287     wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 288     while ( node )
 289     {
 290         wxToolBarTool *tool = (wxToolBarTool *)node->GetData();
 291
 292         switch ( tool->GetStyle() )
 293         {
 294             case wxTOOL_STYLE_CONTROL:
 295             {
 296                 wxControl* control = tool->GetControl();
 297                 wxSize sz = control->GetSize();
 298                 wxPoint pos = control->GetPosition();
 299                 // Allow a control to specify a y[x]-offset by setting
 300                 // its initial position, but still don't allow it to
 301                 // position itself above the top[left] margin.
 302                 int controlY = (pos.y > 0) ? pos.y : currentY;
 303                 int controlX = (pos.x > 0) ? pos.x : currentX;
 304                 control->Move( isVertical ? controlX : currentX,
 305                                isVertical ? currentY : controlY );
 306                 if ( isVertical )
 307                     currentY += sz.y + packing;
 308                 else
 309                     currentX += sz.x + packing;
 310
 311                 break;
 312             }
 313             case wxTOOL_STYLE_SEPARATOR:
 314                 // skip separators for vertical toolbars
 315                 if( !isVertical )
 316                 {
 317                     currentX += separatorSize;
 318                 }
 319                 break;
 320
 321             case wxTOOL_STYLE_BUTTON:
 322                 button = (Widget) 0;
 323
 324                 if ( tool->CanBeToggled() && !tool->GetButtonWidget() )
 325                 {
 326                     button = XtVaCreateWidget("toggleButton",
 327                             xmToggleButtonWidgetClass, (Widget) m_mainWidget,
 328                             XmNx, currentX, XmNy, currentY,
 329                             XmNindicatorOn, False,
 330                             XmNshadowThickness, 2,
 331                             XmNborderWidth, 0,
 332                             XmNspacing, 0,
 333                             XmNmarginWidth, 0,
 334                             XmNmarginHeight, 0,
 335                             XmNmultiClick, XmMULTICLICK_KEEP,
 336                             XmNlabelType, XmPIXMAP,
 337                             NULL);
 338                     XtAddCallback ((Widget) button,
 339                                    XmNvalueChangedCallback,
 340                                    (XtCallbackProc) wxToolButtonCallback,
 341                                    (XtPointer) this);
 342
 343                     XtVaSetValues ((Widget) button,
 344                                    XmNselectColor,
 345                                    m_backgroundColour.AllocColour
 346                                        (XtDisplay((Widget) button)),
 347                                    NULL);
 348                 }
 349                 else if( !tool->GetButtonWidget() )
 350                 {
 351                     button = XtVaCreateWidget("button",
 352                             xmPushButtonWidgetClass, (Widget) m_mainWidget,
 353                             XmNx, currentX, XmNy, currentY,
 354                             XmNpushButtonEnabled, True,
 355                             XmNmultiClick, XmMULTICLICK_KEEP,
 356                             XmNlabelType, XmPIXMAP,
 357                             NULL);
 358                     XtAddCallback (button,
 359                                    XmNactivateCallback,
 360                                    (XtCallbackProc) wxToolButtonCallback,
 361                                    (XtPointer) this);
 362                 }
 363
 364                 if( !tool->GetButtonWidget() )
 365                 {
 366                     wxDoChangeBackgroundColour((WXWidget) button,
 367                                                m_backgroundColour, TRUE);
 368
 369                     tool->SetWidget(button);
 370                 }
 371                 else
 372                 {
 373                     button = (Widget)tool->GetButtonWidget();
 374                     XtVaSetValues( button,
 375                                    XmNx, currentX, XmNy, currentY,
 376                                    NULL );
 377                 }
 378
 379                 // For each button, if there is a mask, we must create
 380                 // a new wxBitmap that has the correct background colour
 381                 // for the button. Otherwise the background will just be
 382                 // e.g. black if a transparent XPM has been loaded.
 383                 bmp = tool->GetNormalBitmap();
 384                 insensBmp = tool->GetDisabledBitmap();
 385                 if ( bmp.GetMask() || insensBmp.GetMask() )
 386                 {
 387                     int backgroundPixel;
 388                     XtVaGetValues(button, XmNbackground, &backgroundPixel,
 389                                   NULL);
 390
 391                     wxColour col;
 392                     col.SetPixel(backgroundPixel);
 393
 394                     if( bmp.Ok() && bmp.GetMask() )
 395                     {
 396                         bmp = wxCreateMaskedBitmap(bmp, col);
 397                         tool->SetNormalBitmap(bmp);
 398                     }
 399
 400                     if( insensBmp.Ok() && insensBmp.GetMask() )
 401                     {
 402                         insensBmp = wxCreateMaskedBitmap(insensBmp, col);
 403                         tool->SetDisabledBitmap(insensBmp);
 404                     }
 405                 }
 406
 407                 // Create a selected/toggled bitmap. If there isn't a 2nd
 408                 // bitmap, we need to create it (with a darker, selected
 409                 // background)
 410                 int backgroundPixel;
 411                 if ( tool->CanBeToggled() )
 412                     XtVaGetValues(button, XmNselectColor, &backgroundPixel,
 413                                   NULL);
 414                 else
 415                     XtVaGetValues(button, XmNarmColor, &backgroundPixel,
 416                                   NULL);
 417                 wxColour col;
 418                 col.SetPixel(backgroundPixel);
 419
 420                 pixmap = (Pixmap) bmp.GetDrawable();
 421                 {
 422                     wxBitmap tmp = tool->GetDisabledBitmap();
 423
 424                     insensPixmap = tmp.Ok() ?
 425                             (Pixmap)tmp.GetDrawable() :
 426                             tool->GetInsensPixmap();
 427                 }
 428
 429                 if (tool->CanBeToggled())
 430                 {
 431                     // Toggle button
 432                     Pixmap pixmap2 = tool->GetArmPixmap();
 433                     Pixmap insensPixmap2 = tool->GetInsensPixmap();
 434
 435                     XtVaSetValues (button,
 436                             XmNfillOnSelect, True,
 437                             XmNlabelPixmap, pixmap,
 438                             XmNselectPixmap, pixmap2,
 439                             XmNlabelInsensitivePixmap, insensPixmap,
 440                             XmNselectInsensitivePixmap, insensPixmap2,
 441                             XmNlabelType, XmPIXMAP,
 442                             NULL);
 443                 }
 444                 else
 445                 {
 446                     Pixmap pixmap2 = tool->GetArmPixmap();
 447
 448                     // Normal button
 449                     XtVaSetValues(button,
 450                             XmNlabelPixmap, pixmap,
 451                             XmNlabelInsensitivePixmap, insensPixmap,
 452                             XmNarmPixmap, pixmap2,
 453                             NULL);
 454                 }
 455
 456                 XtManageChild(button);
 457
 458                 {
 459                     Dimension width, height;
 460                     XtVaGetValues(button,
 461                                   XmNwidth, &width,
 462                                   XmNheight, & height,
 463                                   NULL);
 464                     if ( isVertical )
 465                         currentY += height + packing;
 466                     else
 467                         currentX += width + packing;
 468                     buttonHeight = wxMax(buttonHeight, height);
 469                     buttonWidth = wxMax(buttonWidth, width);
 470                 }
 471
 472                 XtAddEventHandler (button, EnterWindowMask | LeaveWindowMask,
 473                         False, wxToolButtonPopupCallback, (XtPointer) this);
 474
 475                 currentSpacing = 0;
 476                 break;
 477         }
 478
 479         node = node->GetNext();
 480     }
 481
 482     SetSize( -1, -1,
 483              isVertical ? buttonWidth + 2 * marginX : -1,
 484              isVertical ? -1 : buttonHeight +  2*marginY );
 485
 486     return TRUE;
 487 }
 488
 489 wxToolBarToolBase *wxToolBar::FindToolForPosition(wxCoord WXUNUSED(x),
 490                                                   wxCoord WXUNUSED(y)) const
 491 {
 492     wxFAIL_MSG( _T("TODO") );
 493
 494     return (wxToolBarToolBase *)NULL;
 495 }
 496
 497 bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos), wxToolBarToolBase *tool)
 498 {
 499     tool->Attach(this);
 500
 501     return TRUE;
 502 }
 503
 504 bool wxToolBar::DoDeleteTool(size_t pos, wxToolBarToolBase *tool)
 505 {
 506     tool->Detach();
 507
 508     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 509     const int separatorSize = GetToolSeparation(); // 8;
 510     int packing = GetToolPacking();
 511     int offset = 0;
 512
 513     for( wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 514          node; node = node->GetNext() )
 515     {
 516         wxToolBarTool *t = (wxToolBarTool*)node->GetData();
 517
 518         if( t == tool )
 519         {
 520             switch ( t->GetStyle() )
 521             {
 522             case wxTOOL_STYLE_CONTROL:
 523             {
 524                 wxSize size = t->GetControl()->GetSize();
 525                 offset = isVertical ? size.y : size.x;
 526                 offset += packing;
 527                 break;
 528             }
 529             case wxTOOL_STYLE_SEPARATOR:
 530                 offset = isVertical ? 0 : separatorSize;
 531                 break;
 532             case wxTOOL_STYLE_BUTTON:
 533             {
 534                 Widget w = t->GetButtonWidget();
 535                 Dimension width, height;
 536
 537                 XtVaGetValues( w,
 538                                XmNwidth, &width,
 539                                XmNheight, &height,
 540                                NULL );
 541
 542                 offset = isVertical ? height : width;
 543                 offset += packing;
 544                 break;
 545             }
 546             }
 547         }
 548         else if( offset )
 549         {
 550             switch ( t->GetStyle() )
 551             {
 552             case wxTOOL_STYLE_CONTROL:
 553             {
 554                 wxPoint pos = t->GetControl()->GetPosition();
 555
 556                 if( isVertical )
 557                     pos.y -= offset;
 558                 else
 559                     pos.x -= offset;
 560
 561                 t->GetControl()->Move( pos );
 562                 break;
 563             }
 564             case wxTOOL_STYLE_SEPARATOR:
 565                 break;
 566             case wxTOOL_STYLE_BUTTON:
 567             {
 568                 Dimension x, y;
 569                 XtVaGetValues( t->GetButtonWidget(),
 570                                XmNx, &x,
 571                                XmNy, &y,
 572                                NULL );
 573
 574                 if( isVertical )
 575                     y -= offset;
 576                 else
 577                     x -= offset;
 578
 579                 XtVaSetValues( t->GetButtonWidget(),
 580                                XmNx, x,
 581                                XmNy, y,
 582                                NULL );
 583                 break;
 584             }
 585             }
 586         }
 587     }
 588
 589     return TRUE;
 590 }
 591
 592 void wxToolBar::DoEnableTool(wxToolBarToolBase *toolBase, bool enable)
 593 {
 594     wxToolBarTool *tool = (wxToolBarTool *)toolBase;
 595     if (tool->GetButtonWidget()){
 596         XtSetSensitive(tool->GetButtonWidget(), (Boolean) enable);
 597     } else if (wxTOOL_STYLE_CONTROL == tool->GetStyle()){
 598         // Controls (such as wxChoice) do not have button widgets
 599         tool->GetControl()->Enable(enable);
 600     }
 601 }
 602
 603 void wxToolBar::DoToggleTool(wxToolBarToolBase *toolBase, bool toggle)
 604 {
 605     wxToolBarTool *tool = (wxToolBarTool *)toolBase;
 606
 607     XmToggleButtonSetState(tool->GetButtonWidget(), (Boolean) toggle, False);
 608 }
 609
 610 void wxToolBar::DoSetToggle(wxToolBarToolBase * WXUNUSED(tool),
 611                             bool WXUNUSED(toggle))
 612 {
 613     // nothing to do
 614 }
 615
 616 void wxToolBar::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 617 {
 618     int old_width, old_height;
 619     GetSize(&old_width, &old_height);
 620
 621     // Correct width and height if needed.
 622     if ( width == -1 || height == -1 )
 623     {
 624         wxSize defaultSize = GetSize();
 625
 626         if ( width == -1 )
 627             width = defaultSize.x;
 628         if ( height == -1 )
 629             height = defaultSize.y;
 630     }
 631
 632     wxToolBarBase::DoSetSize(x, y, width, height, sizeFlags);
 633
 634     // We must refresh the frame size when the toolbar changes size
 635     // otherwise the toolbar can be shown incorrectly
 636     if ( old_width != width || old_height != height )
 637     {
 638         // But before we send the size event check it
 639         // we have a frame that is not being deleted.
 640         wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 641         if ( frame && !frame->IsBeingDeleted() )
 642         {
 643             frame->SendSizeEvent();
 644         }
 645     }
 646 }
 647
 648 // ----------------------------------------------------------------------------
 649 // Motif callbacks
 650 // ----------------------------------------------------------------------------
 651
 652 wxToolBarToolBase *wxToolBar::FindToolByWidget(WXWidget w) const
 653 {
 654     wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 655     while ( node )
 656     {
 657         wxToolBarTool *tool = (wxToolBarTool *)node->GetData();
 658         if ( tool->GetButtonWidget() == w)
 659         {
 660             return tool;
 661         }
 662
 663         node = node->GetNext();
 664     }
 665
 666     return (wxToolBarToolBase *)NULL;
 667 }
 668
 669 static void wxToolButtonCallback(Widget w,
 670                                  XtPointer clientData,
 671                                  XtPointer WXUNUSED(ptr))
 672 {
 673     wxToolBar *toolBar = (wxToolBar *) clientData;
 674     wxToolBarToolBase *tool = toolBar->FindToolByWidget((WXWidget) w);
 675     if ( !tool )
 676         return;
 677
 678     if ( tool->CanBeToggled() )
 679         tool->Toggle();
 680
 681     if ( !toolBar->OnLeftClick(tool->GetId(), tool->IsToggled()) )
 682     {
 683         // revert
 684         tool->Toggle();
 685     }
 686 }
 687
 688
 689 static void wxToolButtonPopupCallback(Widget w,
 690                                       XtPointer client_data,
 691                                       XEvent *event,
 692                                       Boolean *WXUNUSED(continue_to_dispatch))
 693 {
 694     // TODO: retrieve delay before popping up tooltip from wxSystemSettings.
 695     static const int delayMilli = 800;
 696
 697     wxToolBar* toolBar = (wxToolBar*) client_data;
 698     wxToolBarToolBase *tool = toolBar->FindToolByWidget((WXWidget) w);
 699
 700     if ( !tool )
 701         return;
 702
 703     wxString tooltip = tool->GetShortHelp();
 704     if ( !tooltip )
 705         return;
 706
 707     if (!wxTheToolBarTimer)
 708         wxTheToolBarTimer = new wxToolBarTimer;
 709
 710     wxToolBarTimer::buttonWidget = w;
 711     wxToolBarTimer::helpString = tooltip;
 712
 713     /************************************************************/
 714     /* Popup help label                                         */
 715     /************************************************************/
 716     if (event->type == EnterNotify)
 717     {
 718         if (wxToolBarTimer::help_popup != (Widget) 0)
 719         {
 720             XtDestroyWidget (wxToolBarTimer::help_popup);
 721             XtPopdown (wxToolBarTimer::help_popup);
 722         }
 723         wxToolBarTimer::help_popup = (Widget) 0;
 724
 725         // One shot
 726         wxTheToolBarTimer->Start(delayMilli, TRUE);
 727
 728     }
 729     /************************************************************/
 730     /* Popdown help label                                       */
 731     /************************************************************/
 732     else if (event->type == LeaveNotify)
 733     {
 734         if (wxTheToolBarTimer)
 735             wxTheToolBarTimer->Stop();
 736         if (wxToolBarTimer::help_popup != (Widget) 0)
 737         {
 738             XtDestroyWidget (wxToolBarTimer::help_popup);
 739             XtPopdown (wxToolBarTimer::help_popup);
 740         }
 741         wxToolBarTimer::help_popup = (Widget) 0;
 742     }
 743 }
 744
 745 void wxToolBarTimer::Notify()
 746 {
 747     Position x, y;
 748
 749         /************************************************************/
 750         /* Create shell without window decorations                  */
 751         /************************************************************/
 752         help_popup = XtVaCreatePopupShell ("shell",
 753                                            overrideShellWidgetClass, (Widget) wxTheApp->GetTopLevelWidget(),
 754                                            NULL);
 755
 756         /************************************************************/
 757         /* Get absolute position on display of toolbar button       */
 758         /************************************************************/
 759         XtTranslateCoords (buttonWidget,
 760                            (Position) 0,
 761                            (Position) 0,
 762                            &x, &y);
 763
 764         // Move the tooltip more or less above the button
 765         int yOffset = 20; // TODO: What should be really?
 766         y -= yOffset;
 767         if (y < yOffset) y = 0;
 768
 769         /************************************************************/
 770         /* Set the position of the help popup                       */
 771         /************************************************************/
 772         XtVaSetValues (help_popup,
 773                        XmNx, (Position) x,
 774                        XmNy, (Position) y,
 775                        NULL);
 776
 777         /************************************************************/
 778         /* Create help label                                        */
 779         /************************************************************/
 780         XmString text = XmStringCreateSimple ((char*) (const char*) helpString);
 781         XtVaCreateManagedWidget ("help_label",
 782                                  xmLabelWidgetClass, help_popup,
 783                                  XmNlabelString, text,
 784                                  XtVaTypedArg,
 785                                  XmNforeground, XtRString, "black",
 786                                                 strlen("black")+1,
 787                                  XtVaTypedArg,
 788                                  XmNbackground, XtRString, "LightGoldenrod",
 789                                                 strlen("LightGoldenrod")+1,
 790                                  NULL);
 791         XmStringFree (text);
 792
 793         /************************************************************/
 794         /* Popup help label                                         */
 795         /************************************************************/
 796         XtPopup (help_popup, XtGrabNone);
 797 }
 798