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 #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, wxControl)
  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     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 243                   rPos.x, rPos.y, rSize.x, rSize.y);
 244
 245     ChangeBackgroundColour();
 246
 247     return TRUE;
 248 }
 249
 250 wxToolBar::~wxToolBar()
 251 {
 252     delete wxTheToolBarTimer;
 253     wxTheToolBarTimer = NULL;
 254 }
 255
 256 bool wxToolBar::Realize()
 257 {
 258     if ( m_tools.GetCount() == 0 )
 259     {
 260         // nothing to do
 261         return TRUE;
 262     }
 263
 264     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 265
 266     // Separator spacing
 267     const int separatorSize = GetToolSeparation(); // 8;
 268     wxSize margins = GetToolMargins();
 269     int packing = GetToolPacking();
 270     int marginX = margins.x;
 271     int marginY = margins.y;
 272
 273     int currentX = marginX;
 274     int currentY = marginY;
 275
 276     int buttonHeight = 0, buttonWidth = 0;
 277
 278     int currentSpacing = 0;
 279
 280     Widget button;
 281     Pixmap pixmap, insensPixmap;
 282     wxBitmap bmp, insensBmp;
 283
 284     wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 285     while ( node )
 286     {
 287         wxToolBarTool *tool = (wxToolBarTool *)node->GetData();
 288
 289         switch ( tool->GetStyle() )
 290         {
 291             case wxTOOL_STYLE_CONTROL:
 292             {
 293                 wxControl* control = tool->GetControl();
 294                 wxSize sz = control->GetSize();
 295                 wxPoint pos = control->GetPosition();
 296                 // Allow a control to specify a y[x]-offset by setting
 297                 // its initial position, but still don't allow it to
 298                 // position itself above the top[left] margin.
 299                 int controlY = (pos.y > 0) ? pos.y : currentY;
 300                 int controlX = (pos.x > 0) ? pos.x : currentX;
 301                 control->Move( isVertical ? controlX : currentX,
 302                                isVertical ? currentY : controlY );
 303                 if ( isVertical )
 304                     currentY += sz.y + packing;
 305                 else
 306                     currentX += sz.x + packing;
 307
 308                 break;
 309             }
 310             case wxTOOL_STYLE_SEPARATOR:
 311                 // skip separators for vertical toolbars
 312                 if( !isVertical )
 313                 {
 314                     currentX += separatorSize;
 315                 }
 316                 break;
 317
 318             case wxTOOL_STYLE_BUTTON:
 319                 button = (Widget) 0;
 320
 321                 if ( tool->CanBeToggled() && !tool->GetButtonWidget() )
 322                 {
 323                     button = XtVaCreateWidget("toggleButton",
 324                             xmToggleButtonWidgetClass, (Widget) m_mainWidget,
 325                             XmNx, currentX, XmNy, currentY,
 326                             XmNindicatorOn, False,
 327                             XmNshadowThickness, 2,
 328                             XmNborderWidth, 0,
 329                             XmNspacing, 0,
 330                             XmNmarginWidth, 0,
 331                             XmNmarginHeight, 0,
 332                             XmNmultiClick, XmMULTICLICK_KEEP,
 333                             XmNlabelType, XmPIXMAP,
 334                             NULL);
 335                     XtAddCallback ((Widget) button,
 336                                    XmNvalueChangedCallback,
 337                                    (XtCallbackProc) wxToolButtonCallback,
 338                                    (XtPointer) this);
 339
 340                     XtVaSetValues ((Widget) button,
 341                                    XmNselectColor,
 342                                    m_backgroundColour.AllocColour
 343                                        (XtDisplay((Widget) button)),
 344                                    NULL);
 345                 }
 346                 else if( !tool->GetButtonWidget() )
 347                 {
 348                     button = XtVaCreateWidget("button",
 349                             xmPushButtonWidgetClass, (Widget) m_mainWidget,
 350                             XmNx, currentX, XmNy, currentY,
 351                             XmNpushButtonEnabled, True,
 352                             XmNmultiClick, XmMULTICLICK_KEEP,
 353                             XmNlabelType, XmPIXMAP,
 354                             NULL);
 355                     XtAddCallback (button,
 356                                    XmNactivateCallback,
 357                                    (XtCallbackProc) wxToolButtonCallback,
 358                                    (XtPointer) this);
 359                 }
 360
 361                 if( !tool->GetButtonWidget() )
 362                 {
 363                     wxDoChangeBackgroundColour((WXWidget) button,
 364                                                m_backgroundColour, TRUE);
 365
 366                     tool->SetWidget(button);
 367                 }
 368                 else
 369                 {
 370                     button = (Widget)tool->GetButtonWidget();
 371                     XtVaSetValues( button,
 372                                    XmNx, currentX, XmNy, currentY,
 373                                    NULL );
 374                 }
 375
 376                 // For each button, if there is a mask, we must create
 377                 // a new wxBitmap that has the correct background colour
 378                 // for the button. Otherwise the background will just be
 379                 // e.g. black if a transparent XPM has been loaded.
 380                 bmp = tool->GetNormalBitmap();
 381                 insensBmp = tool->GetDisabledBitmap();
 382                 if ( bmp.GetMask() || insensBmp.GetMask() )
 383                 {
 384                     int backgroundPixel;
 385                     XtVaGetValues(button, XmNbackground, &backgroundPixel,
 386                                   NULL);
 387
 388                     wxColour col;
 389                     col.SetPixel(backgroundPixel);
 390
 391                     if( bmp.Ok() && bmp.GetMask() )
 392                     {
 393                         bmp = wxCreateMaskedBitmap(bmp, col);
 394                         tool->SetNormalBitmap(bmp);
 395                     }
 396
 397                     if( insensBmp.Ok() && insensBmp.GetMask() )
 398                     {
 399                         insensBmp = wxCreateMaskedBitmap(insensBmp, col);
 400                         tool->SetDisabledBitmap(insensBmp);
 401                     }
 402                 }
 403
 404                 // Create a selected/toggled bitmap. If there isn't a 2nd
 405                 // bitmap, we need to create it (with a darker, selected
 406                 // background)
 407                 int backgroundPixel;
 408                 if ( tool->CanBeToggled() )
 409                     XtVaGetValues(button, XmNselectColor, &backgroundPixel,
 410                                   NULL);
 411                 else
 412                     XtVaGetValues(button, XmNarmColor, &backgroundPixel,
 413                                   NULL);
 414                 wxColour col;
 415                 col.SetPixel(backgroundPixel);
 416
 417                 pixmap = (Pixmap) bmp.GetDrawable();
 418                 {
 419                     wxBitmap tmp = tool->GetDisabledBitmap();
 420
 421                     insensPixmap = tmp.Ok() ?
 422                             (Pixmap)tmp.GetDrawable() :
 423                             tool->GetInsensPixmap();
 424                 }
 425
 426                 if (tool->CanBeToggled())
 427                 {
 428                     // Toggle button
 429                     Pixmap pixmap2 = tool->GetArmPixmap();
 430                     Pixmap insensPixmap2 = tool->GetInsensPixmap();
 431
 432                     XtVaSetValues (button,
 433                             XmNfillOnSelect, True,
 434                             XmNlabelPixmap, pixmap,
 435                             XmNselectPixmap, pixmap2,
 436                             XmNlabelInsensitivePixmap, insensPixmap,
 437                             XmNselectInsensitivePixmap, insensPixmap2,
 438                             XmNlabelType, XmPIXMAP,
 439                             NULL);
 440                 }
 441                 else
 442                 {
 443                     Pixmap pixmap2 = tool->GetArmPixmap();
 444
 445                     // Normal button
 446                     XtVaSetValues(button,
 447                             XmNlabelPixmap, pixmap,
 448                             XmNlabelInsensitivePixmap, insensPixmap,
 449                             XmNarmPixmap, pixmap2,
 450                             NULL);
 451                 }
 452
 453                 XtManageChild(button);
 454
 455                 {
 456                     Dimension width, height;
 457                     XtVaGetValues(button,
 458                                   XmNwidth, &width,
 459                                   XmNheight, & height,
 460                                   NULL);
 461                     if ( isVertical )
 462                         currentY += height + packing;
 463                     else
 464                         currentX += width + packing;
 465                     buttonHeight = wxMax(buttonHeight, height);
 466                     buttonWidth = wxMax(buttonWidth, width);
 467                 }
 468
 469                 XtAddEventHandler (button, EnterWindowMask | LeaveWindowMask,
 470                         False, wxToolButtonPopupCallback, (XtPointer) this);
 471
 472                 currentSpacing = 0;
 473                 break;
 474         }
 475
 476         node = node->GetNext();
 477     }
 478
 479     SetSize( -1, -1,
 480              isVertical ? buttonWidth + 2 * marginX : -1,
 481              isVertical ? -1 : buttonHeight +  2*marginY );
 482
 483     return TRUE;
 484 }
 485
 486 wxToolBarToolBase *wxToolBar::FindToolForPosition(wxCoord WXUNUSED(x),
 487                                                   wxCoord WXUNUSED(y)) const
 488 {
 489     wxFAIL_MSG( _T("TODO") );
 490
 491     return (wxToolBarToolBase *)NULL;
 492 }
 493
 494 bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos), wxToolBarToolBase *tool)
 495 {
 496     tool->Attach(this);
 497
 498     return TRUE;
 499 }
 500
 501 bool wxToolBar::DoDeleteTool(size_t pos, wxToolBarToolBase *tool)
 502 {
 503     tool->Detach();
 504
 505     bool isVertical = GetWindowStyle() & wxTB_VERTICAL;
 506     const int separatorSize = GetToolSeparation(); // 8;
 507     int packing = GetToolPacking();
 508     int offset = 0;
 509
 510     for( wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
 511          node; node = node->GetNext() )
 512     {
 513         wxToolBarTool *t = (wxToolBarTool*)node->GetData();
 514
 515         if( t == tool )
 516         {
 517             switch ( t->GetStyle() )
 518             {
 519             case wxTOOL_STYLE_CONTROL:
 520             {
 521                 wxSize size = t->GetControl()->GetSize();
 522                 offset = isVertical ? size.y : size.x;
 523                 offset += packing;
 524                 break;
 525             }
 526             case wxTOOL_STYLE_SEPARATOR:
 527                 offset = isVertical ? 0 : separatorSize;
 528                 break;
 529             case wxTOOL_STYLE_BUTTON:
 530             {
 531                 Widget w = t->GetButtonWidget();
 532                 Dimension width, height;
 533
 534                 XtVaGetValues( w,
 535                                XmNwidth, &width,
 536                                XmNheight, &height,
 537                                NULL );
 538
 539                 offset = isVertical ? height : width;
 540                 offset += packing;
 541                 break;
 542             }
 543             }
 544         }
 545         else if( offset )
 546         {
 547             switch ( t->GetStyle() )
 548             {
 549             case wxTOOL_STYLE_CONTROL:
 550             {
 551                 wxPoint pos = t->GetControl()->GetPosition();
 552
 553                 if( isVertical )
 554                     pos.y -= offset;
 555                 else
 556                     pos.x -= offset;
 557
 558                 t->GetControl()->Move( pos );
 559                 break;
 560             }
 561             case wxTOOL_STYLE_SEPARATOR:
 562                 break;
 563             case wxTOOL_STYLE_BUTTON:
 564             {
 565                 Dimension x, y;
 566                 XtVaGetValues( t->GetButtonWidget(),
 567                                XmNx, &x,
 568                                XmNy, &y,
 569                                NULL );
 570
 571                 if( isVertical )
 572                     y -= offset;
 573                 else
 574                     x -= offset;
 575
 576                 XtVaSetValues( t->GetButtonWidget(),
 577                                XmNx, x,
 578                                XmNy, y,
 579                                NULL );
 580                 break;
 581             }
 582             }
 583         }
 584     }
 585
 586     return TRUE;
 587 }
 588
 589 void wxToolBar::DoEnableTool(wxToolBarToolBase *toolBase, bool enable)
 590 {
 591     wxToolBarTool *tool = (wxToolBarTool *)toolBase;
 592
 593     XtSetSensitive(tool->GetButtonWidget(), (Boolean) enable);
 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 -= 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 }
 791