src/msw/tbar95.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/tbar95.cpp
   3 // Purpose:     wxToolBar
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "tbar95.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/frame.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35     #include "wx/dynarray.h"
  36     #include "wx/settings.h"
  37     #include "wx/bitmap.h"
  38 #endif
  39
  40 #if wxUSE_TOOLBAR && defined(__WIN95__) && wxUSE_TOOLBAR_NATIVE
  41
  42 #include "wx/toolbar.h"
  43
  44 #if !defined(__GNUWIN32__) && !defined(__SALFORDC__)
  45     #include "malloc.h"
  46 #endif
  47
  48 #include "wx/msw/private.h"
  49
  50 #ifndef __TWIN32__
  51
  52 #ifdef __GNUWIN32_OLD__
  53     #include "wx/msw/gnuwin32/extra.h"
  54 #else
  55     #include <commctrl.h>
  56 #endif
  57
  58 #endif // __TWIN32__
  59
  60 #include "wx/msw/dib.h"
  61 #include "wx/app.h"         // for GetComCtl32Version
  62
  63 // ----------------------------------------------------------------------------
  64 // constants
  65 // ----------------------------------------------------------------------------
  66
  67 // these standard constants are not always defined in compilers headers
  68
  69 // Styles
  70 #ifndef TBSTYLE_FLAT
  71     #define TBSTYLE_LIST            0x1000
  72     #define TBSTYLE_FLAT            0x0800
  73     #define TBSTYLE_TRANSPARENT     0x8000
  74 #endif
  75  // use TBSTYLE_TRANSPARENT if you use TBSTYLE_FLAT
  76
  77 // Messages
  78 #ifndef TB_GETSTYLE
  79     #define TB_SETSTYLE             (WM_USER + 56)
  80     #define TB_GETSTYLE             (WM_USER + 57)
  81 #endif
  82
  83 #ifndef TB_HITTEST
  84     #define TB_HITTEST              (WM_USER + 69)
  85 #endif
  86
  87 // these values correspond to those used by comctl32.dll
  88 #define DEFAULTBITMAPX   16
  89 #define DEFAULTBITMAPY   15
  90 #define DEFAULTBUTTONX   24
  91 #define DEFAULTBUTTONY   24
  92 #define DEFAULTBARHEIGHT 27
  93
  94 // ----------------------------------------------------------------------------
  95 // private function prototypes
  96 // ----------------------------------------------------------------------------
  97
  98 static void wxMapBitmap(HBITMAP hBitmap, int width, int height);
  99
 100 // ----------------------------------------------------------------------------
 101 // wxWin macros
 102 // ----------------------------------------------------------------------------
 103
 104 IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxControl)
 105
 106 BEGIN_EVENT_TABLE(wxToolBar, wxToolBarBase)
 107     EVT_MOUSE_EVENTS(wxToolBar::OnMouseEvent)
 108     EVT_SYS_COLOUR_CHANGED(wxToolBar::OnSysColourChanged)
 109 END_EVENT_TABLE()
 110
 111 // ----------------------------------------------------------------------------
 112 // private classes
 113 // ----------------------------------------------------------------------------
 114
 115 class wxToolBarTool : public wxToolBarToolBase
 116 {
 117 public:
 118     wxToolBarTool(wxToolBar *tbar,
 119                   int id,
 120                   const wxBitmap& bitmap1,
 121                   const wxBitmap& bitmap2,
 122                   bool toggle,
 123                   wxObject *clientData,
 124                   const wxString& shortHelpString,
 125                   const wxString& longHelpString)
 126         : wxToolBarToolBase(tbar, id, bitmap1, bitmap2, toggle,
 127                             clientData, shortHelpString, longHelpString)
 128     {
 129         m_nSepCount = 0;
 130     }
 131
 132     wxToolBarTool(wxToolBar *tbar, wxControl *control)
 133         : wxToolBarToolBase(tbar, control)
 134     {
 135         m_nSepCount = 1;
 136     }
 137
 138     // set/get the number of separators which we use to cover the space used by
 139     // a control in the toolbar
 140     void SetSeparatorsCount(size_t count) { m_nSepCount = count; }
 141     size_t GetSeparatorsCount() const { return m_nSepCount; }
 142
 143 private:
 144     size_t m_nSepCount;
 145 };
 146
 147
 148 // ============================================================================
 149 // implementation
 150 // ============================================================================
 151
 152 // ----------------------------------------------------------------------------
 153 // wxToolBarTool
 154 // ----------------------------------------------------------------------------
 155
 156 wxToolBarToolBase *wxToolBar::CreateTool(int id,
 157                                          const wxBitmap& bitmap1,
 158                                          const wxBitmap& bitmap2,
 159                                          bool toggle,
 160                                          wxObject *clientData,
 161                                          const wxString& shortHelpString,
 162                                          const wxString& longHelpString)
 163 {
 164     return new wxToolBarTool(this, id, bitmap1, bitmap2, toggle,
 165                              clientData, shortHelpString, longHelpString);
 166 }
 167
 168 wxToolBarToolBase *wxToolBar::CreateTool(wxControl *control)
 169 {
 170     return new wxToolBarTool(this, control);
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // wxToolBar construction
 175 // ----------------------------------------------------------------------------
 176
 177 void wxToolBar::Init()
 178 {
 179     m_hBitmap = 0;
 180
 181     m_nButtons = 0;
 182
 183     m_defaultWidth = DEFAULTBITMAPX;
 184     m_defaultHeight = DEFAULTBITMAPY;
 185 }
 186
 187 bool wxToolBar::Create(wxWindow *parent,
 188                        wxWindowID id,
 189                        const wxPoint& pos,
 190                        const wxSize& size,
 191                        long style,
 192                        const wxString& name)
 193 {
 194     // common initialisation
 195     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
 196         return FALSE;
 197
 198     // prepare flags
 199     DWORD msflags = 0;      // WS_VISIBLE | WS_CHILD always included
 200     if (style & wxBORDER)
 201         msflags |= WS_BORDER;
 202
 203 #ifdef TBSTYLE_TOOLTIPS
 204     msflags |= TBSTYLE_TOOLTIPS;
 205 #endif
 206
 207     if (style & wxTB_FLAT)
 208     {
 209         if (wxTheApp->GetComCtl32Version() > 400)
 210             msflags |= TBSTYLE_FLAT;
 211     }
 212
 213     // MSW-specific initialisation
 214     if ( !wxControl::MSWCreateControl(TOOLBARCLASSNAME, msflags) )
 215         return FALSE;
 216
 217     // toolbar-specific post initialisation
 218     ::SendMessage(GetHwnd(), TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 219
 220     // set up the colors and fonts
 221     wxRGBToColour(m_backgroundColour, GetSysColor(COLOR_BTNFACE));
 222     m_foregroundColour = *wxBLACK;
 223
 224     SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 225
 226     // position it
 227     int x = pos.x;
 228     int y = pos.y;
 229     int width = size.x;
 230     int height = size.y;
 231
 232     if (width <= 0)
 233         width = 100;
 234     if (height <= 0)
 235         height = m_defaultHeight;
 236     if (x < 0)
 237         x = 0;
 238     if (y < 0)
 239         y = 0;
 240
 241     SetSize(x, y, width, height);
 242
 243     return TRUE;
 244 }
 245
 246 wxToolBar::~wxToolBar()
 247 {
 248     if (m_hBitmap)
 249     {
 250         ::DeleteObject((HBITMAP) m_hBitmap);
 251     }
 252 }
 253
 254 // ----------------------------------------------------------------------------
 255 // adding/removing tools
 256 // ----------------------------------------------------------------------------
 257
 258 bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos),
 259                              wxToolBarToolBase *tool)
 260 {
 261     // nothing special to do here - we really create the toolbar buttons in
 262     // Realize() later
 263     tool->Attach(this);
 264
 265     return TRUE;
 266 }
 267
 268 bool wxToolBar::DoDeleteTool(size_t pos, wxToolBarToolBase *tool)
 269 {
 270     // normally, we only delete one button, but we use several separators to
 271     // cover the space used by one control sometimes (with old comctl32.dll)
 272     size_t nButtonsToDelete = 1;
 273
 274     // get the size of the button we're going to delete
 275     RECT r;
 276     if ( !::SendMessage(GetHwnd(), TB_GETITEMRECT, pos, (LPARAM)&r) )
 277     {
 278         wxLogLastError(_T("TB_GETITEMRECT"));
 279     }
 280
 281     int width = r.right - r.left;
 282
 283     if ( tool->IsControl() )
 284     {
 285         nButtonsToDelete = ((wxToolBarTool *)tool)->GetSeparatorsCount();
 286
 287         width *= nButtonsToDelete;
 288     }
 289
 290     while ( nButtonsToDelete-- > 0 )
 291     {
 292         if ( !::SendMessage(GetHwnd(), TB_DELETEBUTTON, pos, 0) )
 293         {
 294             wxLogLastError("TB_DELETEBUTTON");
 295
 296             return FALSE;
 297         }
 298     }
 299
 300     tool->Detach();
 301
 302     m_nButtons -= nButtonsToDelete;
 303
 304     // reposition all the controls after this button
 305     wxToolBarToolsList::Node *node = m_tools.Item(pos);
 306     for ( node = node->GetNext(); node; node = node->GetNext() )
 307     {
 308         wxToolBarToolBase *tool2 = node->GetData();
 309         if ( tool2->IsControl() )
 310         {
 311             int x;
 312             wxControl *control = tool2->GetControl();
 313             control->GetPosition(&x, NULL);
 314             control->Move(x - width, -1);
 315         }
 316     }
 317
 318     return TRUE;
 319 }
 320
 321 bool wxToolBar::Realize()
 322 {
 323     size_t nTools = GetToolsCount();
 324     if ( nTools == 0 )
 325     {
 326         // nothing to do
 327         return TRUE;
 328     }
 329
 330     bool isVertical = (GetWindowStyle() & wxTB_VERTICAL) != 0;
 331
 332     // First, add the bitmap: we use one bitmap for all toolbar buttons
 333     // ----------------------------------------------------------------
 334
 335     // if we already have a bitmap, we'll replace the existing one - otherwise
 336     // we'll install a new one
 337     HBITMAP oldToolBarBitmap = (HBITMAP)m_hBitmap;
 338
 339     int totalBitmapWidth = (int)(m_defaultWidth * nTools);
 340     int totalBitmapHeight = (int)m_defaultHeight;
 341
 342     // Create a bitmap for all the tool bitmaps
 343     HBITMAP hBitmap = ::CreateCompatibleBitmap(ScreenHDC(),
 344                                                totalBitmapWidth,
 345                                                totalBitmapHeight);
 346     if ( !hBitmap )
 347     {
 348         wxLogLastError(_T("CreateCompatibleBitmap"));
 349
 350         return FALSE;
 351     }
 352
 353     m_hBitmap = (WXHBITMAP)hBitmap;
 354
 355     // Now blit all the tools onto this bitmap
 356     HDC memoryDC = ::CreateCompatibleDC(NULL);
 357     HBITMAP oldBitmap = (HBITMAP) ::SelectObject(memoryDC, hBitmap);
 358
 359     HDC memoryDC2 = ::CreateCompatibleDC(NULL);
 360
 361     // the button position
 362     wxCoord x = 0;
 363
 364     // the number of buttons (not separators)
 365     int nButtons = 0;
 366
 367     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 368     while ( node )
 369     {
 370         wxToolBarToolBase *tool = node->GetData();
 371         if ( tool->IsButton() )
 372         {
 373             HBITMAP hbmp = GetHbitmapOf(tool->GetBitmap1());
 374             if ( hbmp )
 375             {
 376                 HBITMAP oldBitmap2 = (HBITMAP)::SelectObject(memoryDC2, hbmp);
 377                 if ( !BitBlt(memoryDC, x, 0,  m_defaultWidth, m_defaultHeight,
 378                              memoryDC2, 0, 0, SRCCOPY) )
 379                 {
 380                     wxLogLastError("BitBlt");
 381                 }
 382
 383                 ::SelectObject(memoryDC2, oldBitmap2);
 384             }
 385             else
 386             {
 387                 wxFAIL_MSG( _T("invalid tool button bitmap") );
 388             }
 389
 390             // still inc width and number of buttons because otherwise the
 391             // subsequent buttons will all be shifted which is rather confusing
 392             // (and like this you'd see immediately which bitmap was bad)
 393             x += m_defaultWidth;
 394             nButtons++;
 395         }
 396
 397         node = node->GetNext();
 398     }
 399
 400     ::SelectObject(memoryDC, oldBitmap);
 401     ::DeleteDC(memoryDC);
 402     ::DeleteDC(memoryDC2);
 403
 404     // Map to system colours
 405     wxMapBitmap(hBitmap, totalBitmapWidth, totalBitmapHeight);
 406
 407     int bitmapId = 0;
 408
 409     bool addBitmap = TRUE;
 410
 411     if ( oldToolBarBitmap )
 412     {
 413 #ifdef TB_REPLACEBITMAP
 414         if ( wxTheApp->GetComCtl32Version() >= 400 )
 415         {
 416             TBREPLACEBITMAP replaceBitmap;
 417             replaceBitmap.hInstOld = NULL;
 418             replaceBitmap.hInstNew = NULL;
 419             replaceBitmap.nIDOld = (UINT) oldToolBarBitmap;
 420             replaceBitmap.nIDNew = (UINT) hBitmap;
 421             replaceBitmap.nButtons = nButtons;
 422             if ( !::SendMessage(GetHwnd(), TB_REPLACEBITMAP,
 423                                 0, (LPARAM) &replaceBitmap) )
 424             {
 425                 wxFAIL_MSG(wxT("Could not replace the old bitmap"));
 426             }
 427
 428             ::DeleteObject(oldToolBarBitmap);
 429
 430             // already done
 431             addBitmap = FALSE;
 432         }
 433         else
 434 #endif // TB_REPLACEBITMAP
 435         {
 436             // we can't replace the old bitmap, so we will add another one
 437             // (awfully inefficient, but what else to do?) and shift the bitmap
 438             // indices accordingly
 439             addBitmap = TRUE;
 440
 441             bitmapId = m_nButtons;
 442         }
 443
 444         // Now delete all the buttons
 445         for ( size_t pos = 0; pos < m_nButtons; pos++ )
 446         {
 447             if ( !::SendMessage(GetHwnd(), TB_DELETEBUTTON, 0, 0) )
 448             {
 449                 wxLogLastError("TB_DELETEBUTTON");
 450             }
 451         }
 452
 453     }
 454
 455     if ( addBitmap ) // no old bitmap or we can't replace it
 456     {
 457         TBADDBITMAP addBitmap;
 458         addBitmap.hInst = 0;
 459         addBitmap.nID = (UINT) hBitmap;
 460         if ( ::SendMessage(GetHwnd(), TB_ADDBITMAP,
 461                            (WPARAM) nButtons, (LPARAM)&addBitmap) == -1 )
 462         {
 463             wxFAIL_MSG(wxT("Could not add bitmap to toolbar"));
 464         }
 465     }
 466
 467     // Next add the buttons and separators
 468     // -----------------------------------
 469
 470     TBBUTTON *buttons = new TBBUTTON[nTools];
 471
 472     // this array will hold the indices of all controls in the toolbar
 473     wxArrayInt controlIds;
 474
 475     int i = 0;
 476     for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
 477     {
 478         wxToolBarToolBase *tool = node->GetData();
 479
 480         // don't add separators to the vertical toolbar - looks ugly
 481         if ( isVertical && tool->IsSeparator() )
 482             continue;
 483
 484         TBBUTTON& button = buttons[i];
 485
 486         wxZeroMemory(button);
 487
 488         switch ( tool->GetStyle() )
 489         {
 490             case wxTOOL_STYLE_CONTROL:
 491                 button.idCommand = tool->GetId();
 492                 // fall through: create just a separator too
 493
 494             case wxTOOL_STYLE_SEPARATOR:
 495                 button.fsState = TBSTATE_ENABLED;
 496                 button.fsStyle = TBSTYLE_SEP;
 497                 break;
 498
 499             case wxTOOL_STYLE_BUTTON:
 500                 button.iBitmap = bitmapId;
 501                 button.idCommand = tool->GetId();
 502
 503                 if ( tool->IsEnabled() )
 504                     button.fsState |= TBSTATE_ENABLED;
 505                 if ( tool->IsToggled() )
 506                     button.fsState |= TBSTATE_CHECKED;
 507
 508                 button.fsStyle = tool->CanBeToggled() ? TBSTYLE_CHECK
 509                                                       : TBSTYLE_BUTTON;
 510
 511                 bitmapId++;
 512                 break;
 513         }
 514
 515         i++;
 516     }
 517
 518     if ( !::SendMessage(GetHwnd(), TB_ADDBUTTONS,
 519                         (WPARAM)i, (LPARAM)buttons) )
 520     {
 521         wxLogLastError("TB_ADDBUTTONS");
 522     }
 523
 524     delete [] buttons;
 525
 526     // Deal with the controls finally
 527     // ------------------------------
 528
 529     // adjust the controls size to fit nicely in the toolbar
 530     size_t index = 0;
 531     for ( node = m_tools.GetFirst(); node; node = node->GetNext(), index++ )
 532     {
 533         wxToolBarToolBase *tool = node->GetData();
 534         if ( !tool->IsControl() )
 535             continue;
 536
 537         wxControl *control = tool->GetControl();
 538
 539         wxSize size = control->GetSize();
 540
 541         // the position of the leftmost controls corner
 542         int left = -1;
 543
 544         // note that we use TB_GETITEMRECT and not TB_GETRECT because the
 545         // latter only appeared in v4.70 of comctl32.dll
 546         RECT r;
 547         if ( !SendMessage(GetHwnd(), TB_GETITEMRECT,
 548                           index, (LPARAM)(LPRECT)&r) )
 549         {
 550             wxLogLastError("TB_GETITEMRECT");
 551         }
 552
 553         // TB_SETBUTTONINFO message is only supported by comctl32.dll 4.71+
 554         #if defined(_WIN32_IE) && (_WIN32_IE >= 0x400 )
 555             // available in headers, now check whether it is available now
 556             // (during run-time)
 557             if ( wxTheApp->GetComCtl32Version() >= 471 )
 558             {
 559                 // set the (underlying) separators width to be that of the
 560                 // control
 561                 TBBUTTONINFO tbbi;
 562                 tbbi.cbSize = sizeof(tbbi);
 563                 tbbi.dwMask = TBIF_SIZE;
 564                 tbbi.cx = size.x;
 565                 if ( !SendMessage(GetHwnd(), TB_SETBUTTONINFO,
 566                                   tool->GetId(), (LPARAM)&tbbi) )
 567                 {
 568                     // the id is probably invalid?
 569                     wxLogLastError("TB_SETBUTTONINFO");
 570                 }
 571
 572             }
 573             else
 574         #endif // comctl32.dll 4.71
 575             // TB_SETBUTTONINFO unavailable
 576             {
 577                 // try adding several separators to fit the controls width
 578                 int widthSep = r.right - r.left;
 579                 left = r.left;
 580
 581                 TBBUTTON tbb;
 582                 wxZeroMemory(tbb);
 583                 tbb.idCommand = 0;
 584                 tbb.fsState = TBSTATE_ENABLED;
 585                 tbb.fsStyle = TBSTYLE_SEP;
 586
 587                 size_t nSeparators = size.x / widthSep;
 588                 for ( size_t nSep = 0; nSep < nSeparators; nSep++ )
 589                 {
 590                     if ( !SendMessage(GetHwnd(), TB_INSERTBUTTON,
 591                                       index, (LPARAM)&tbb) )
 592                     {
 593                         wxLogLastError("TB_INSERTBUTTON");
 594                     }
 595
 596                     index++;
 597                 }
 598
 599                 // remember the number of separators we used - we'd have to
 600                 // delete all of them later
 601                 ((wxToolBarTool *)tool)->SetSeparatorsCount(nSeparators);
 602
 603                 // adjust the controls width to exactly cover the separators
 604                 control->SetSize((nSeparators + 1)*widthSep, -1);
 605             }
 606
 607         // and position the control itself correctly vertically
 608         int height = r.bottom - r.top;
 609         int diff = height - size.y;
 610         if ( diff < 0 )
 611         {
 612             // the control is too high, resize to fit
 613             control->SetSize(-1, height - 2);
 614
 615             diff = 2;
 616         }
 617
 618         control->Move(left == -1 ? r.left : left, r.top + (diff + 1) / 2);
 619     }
 620
 621     // the max index is the "real" number of buttons - i.e. counting even the
 622     // separators which we added just for aligning the controls
 623     m_nButtons = index;
 624
 625     if ( !isVertical )
 626     {
 627         if ( m_maxRows == 0 )
 628         {
 629             // if not set yet, only one row
 630             SetRows(1);
 631         }
 632     }
 633     else if ( m_nButtons > 0 ) // vertical non empty toolbar
 634     {
 635         if ( m_maxRows == 0 )
 636         {
 637             // if not set yet, have one column
 638             SetRows(m_nButtons);
 639         }
 640     }
 641
 642     return TRUE;
 643 }
 644
 645 // ----------------------------------------------------------------------------
 646 // message handlers
 647 // ----------------------------------------------------------------------------
 648
 649 bool wxToolBar::MSWCommand(WXUINT cmd, WXWORD id)
 650 {
 651     wxToolBarToolBase *tool = FindById((int)id);
 652     if ( !tool )
 653         return FALSE;
 654
 655     if ( tool->CanBeToggled() )
 656     {
 657         LRESULT state = ::SendMessage(GetHwnd(), TB_GETSTATE, id, 0);
 658         tool->Toggle((state & TBSTATE_CHECKED) != 0);
 659     }
 660
 661     bool toggled = tool->IsToggled();
 662
 663     // OnLeftClick() can veto the button state change - for buttons which may
 664     // be toggled only, of couse
 665     if ( !OnLeftClick((int)id, toggled) && tool->CanBeToggled() )
 666     {
 667         // revert back
 668         toggled = !toggled;
 669         tool->SetToggle(toggled);
 670
 671         ::SendMessage(GetHwnd(), TB_CHECKBUTTON, id, MAKELONG(toggled, 0));
 672     }
 673
 674     return TRUE;
 675 }
 676
 677 bool wxToolBar::MSWOnNotify(int WXUNUSED(idCtrl),
 678                             WXLPARAM lParam,
 679                             WXLPARAM *result)
 680 {
 681     // First check if this applies to us
 682     NMHDR *hdr = (NMHDR *)lParam;
 683
 684     // the tooltips control created by the toolbar is sometimes Unicode, even
 685     // in an ANSI application - this seems to be a bug in comctl32.dll v5
 686     int code = (int)hdr->code;
 687     if ( (code != TTN_NEEDTEXTA) && (code != TTN_NEEDTEXTW) )
 688         return FALSE;
 689
 690     HWND toolTipWnd = (HWND)::SendMessage((HWND)GetHWND(), TB_GETTOOLTIPS, 0, 0);
 691     if ( toolTipWnd != hdr->hwndFrom )
 692         return FALSE;
 693
 694     LPTOOLTIPTEXT ttText = (LPTOOLTIPTEXT)lParam;
 695     int id = (int)ttText->hdr.idFrom;
 696
 697     wxToolBarToolBase *tool = FindById(id);
 698     if ( !tool )
 699         return FALSE;
 700
 701     const wxString& help = tool->GetShortHelp();
 702
 703     if ( !help.IsEmpty() )
 704     {
 705         if ( code == TTN_NEEDTEXTA )
 706         {
 707             ttText->lpszText = (wxChar *)help.c_str();
 708         }
 709 #if (_WIN32_IE >= 0x0300)
 710         else
 711         {
 712             // FIXME this is a temp hack only until I understand better what
 713             //       must be done in both ANSI and Unicode builds
 714
 715             size_t lenAnsi = help.Len();
 716             #ifdef __MWERKS__
 717                 // MetroWerks doesn't like calling mbstowcs with NULL argument
 718                 size_t lenUnicode = 2*lenAnsi;
 719             #else
 720                 size_t lenUnicode = mbstowcs(NULL, help, lenAnsi);
 721             #endif
 722
 723             // using the pointer of right type avoids us doing all sorts of
 724             // pointer arithmetics ourselves
 725             wchar_t *dst = (wchar_t *)ttText->szText,
 726                     *pwz = new wchar_t[lenUnicode + 1];
 727             mbstowcs(pwz, help, lenAnsi + 1);
 728             memcpy(dst, pwz, lenUnicode*sizeof(wchar_t));
 729
 730             // put the terminating _wide_ NUL
 731             dst[lenUnicode] = 0;
 732
 733             delete [] pwz;
 734         }
 735 #endif // _WIN32_IE >= 0x0300
 736     }
 737
 738     // For backward compatibility...
 739     OnMouseEnter(tool->GetId());
 740
 741     return TRUE;
 742 }
 743
 744 // ----------------------------------------------------------------------------
 745 // toolbar geometry
 746 // ----------------------------------------------------------------------------
 747
 748 void wxToolBar::SetToolBitmapSize(const wxSize& size)
 749 {
 750     wxToolBarBase::SetToolBitmapSize(size);
 751
 752     ::SendMessage(GetHwnd(), TB_SETBITMAPSIZE, 0, MAKELONG(size.x, size.y));
 753 }
 754
 755 void wxToolBar::SetRows(int nRows)
 756 {
 757     if ( nRows == m_maxRows )
 758     {
 759         // avoid resizing the frame uselessly
 760         return;
 761     }
 762
 763     // TRUE in wParam means to create at least as many rows, FALSE -
 764     // at most as many
 765     RECT rect;
 766     ::SendMessage(GetHwnd(), TB_SETROWS,
 767                   MAKEWPARAM(nRows, !(GetWindowStyle() & wxTB_VERTICAL)),
 768                   (LPARAM) &rect);
 769
 770     m_maxRows = nRows;
 771
 772     UpdateSize();
 773 }
 774
 775 // The button size is bigger than the bitmap size
 776 wxSize wxToolBar::GetToolSize() const
 777 {
 778     // TB_GETBUTTONSIZE is supported from version 4.70
 779 #if defined(_WIN32_IE) && (_WIN32_IE >= 0x300 )
 780     if ( wxTheApp->GetComCtl32Version() >= 470 )
 781     {
 782         DWORD dw = ::SendMessage(GetHwnd(), TB_GETBUTTONSIZE, 0, 0);
 783
 784         return wxSize(LOWORD(dw), HIWORD(dw));
 785     }
 786     else
 787 #endif // comctl32.dll 4.70+
 788     {
 789         // defaults
 790         return wxSize(m_defaultWidth + 8, m_defaultHeight + 7);
 791     }
 792 }
 793
 794 wxToolBarToolBase *wxToolBar::FindToolForPosition(wxCoord x, wxCoord y) const
 795 {
 796     POINT pt;
 797     pt.x = x;
 798     pt.y = y;
 799     int index = (int)::SendMessage(GetHwnd(), TB_HITTEST, 0, (LPARAM)&pt);
 800     if ( index < 0 )
 801     {
 802         // it's a separator or there is no tool at all there
 803         return (wxToolBarToolBase *)NULL;
 804     }
 805
 806     return m_tools.Item((size_t)index)->GetData();
 807 }
 808
 809 void wxToolBar::UpdateSize()
 810 {
 811     // we must refresh the frame after the toolbar size (possibly) changed
 812     wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 813     if ( frame )
 814     {
 815         // don't change the size, we just need to generate a WM_SIZE
 816         RECT r;
 817         if ( !GetWindowRect(GetHwndOf(frame), &r) )
 818         {
 819             wxLogLastError(_T("GetWindowRect"));
 820         }
 821
 822         (void)::SendMessage(GetHwndOf(frame), WM_SIZE, SIZE_RESTORED,
 823                             MAKELPARAM(r.right - r.left, r.bottom - r.top));
 824     }
 825
 826 }
 827
 828 // ----------------------------------------------------------------------------
 829 // tool state
 830 // ----------------------------------------------------------------------------
 831
 832 void wxToolBar::DoEnableTool(wxToolBarToolBase *tool, bool enable)
 833 {
 834     ::SendMessage(GetHwnd(), TB_ENABLEBUTTON,
 835                   (WPARAM)tool->GetId(), (LPARAM)MAKELONG(enable, 0));
 836 }
 837
 838 void wxToolBar::DoToggleTool(wxToolBarToolBase *tool, bool toggle)
 839 {
 840     ::SendMessage(GetHwnd(), TB_CHECKBUTTON,
 841                   (WPARAM)tool->GetId(), (LPARAM)MAKELONG(toggle, 0));
 842 }
 843
 844 void wxToolBar::DoSetToggle(wxToolBarToolBase *tool, bool toggle)
 845 {
 846     // VZ: AFAIK, the button has to be created either with TBSTYLE_CHECK or
 847     //     without, so we really need to delete the button and recreate it here
 848     wxFAIL_MSG( _T("not implemented") );
 849 }
 850
 851 // ----------------------------------------------------------------------------
 852 // event handlers
 853 // ----------------------------------------------------------------------------
 854
 855 // Responds to colour changes, and passes event on to children.
 856 void wxToolBar::OnSysColourChanged(wxSysColourChangedEvent& event)
 857 {
 858     m_backgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
 859           GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
 860
 861     // Remap the buttons
 862     Realize();
 863
 864     Refresh();
 865
 866     // Propagate the event to the non-top-level children
 867     wxWindow::OnSysColourChanged(event);
 868 }
 869
 870 void wxToolBar::OnMouseEvent(wxMouseEvent& event)
 871 {
 872     if (event.RightDown())
 873     {
 874         // For now, we don't have an id. Later we could
 875         // try finding the tool.
 876         OnRightClick((int)-1, event.GetX(), event.GetY());
 877     }
 878     else
 879     {
 880         event.Skip();
 881     }
 882 }
 883
 884 long wxToolBar::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 885 {
 886     if ( nMsg == WM_SIZE )
 887     {
 888         // calculate our minor dimenstion ourselves - we're confusing the
 889         // standard logic (TB_AUTOSIZE) with our horizontal toolbars and other
 890         // hacks
 891         RECT r;
 892         if ( ::SendMessage(GetHwnd(), TB_GETITEMRECT, 0, (LPARAM)&r) )
 893         {
 894             int w, h;
 895
 896             if ( GetWindowStyle() & wxTB_VERTICAL )
 897             {
 898                 w = r.right - r.left;
 899                 if ( m_maxRows )
 900                 {
 901                     w *= (m_nButtons + m_maxRows - 1)/m_maxRows;
 902                 }
 903                 h = HIWORD(lParam);
 904             }
 905             else
 906             {
 907                 w = LOWORD(lParam);
 908                 h = r.bottom - r.top;
 909                 if ( m_maxRows )
 910                 {
 911                     h += 6; // FIXME: this is the separator line height...
 912                     h *= m_maxRows;
 913                 }
 914             }
 915
 916             if ( MAKELPARAM(w, h) != lParam )
 917             {
 918                 // size really changed
 919                 SetSize(w, h);
 920             }
 921
 922             // message processed
 923             return 0;
 924         }
 925     }
 926
 927     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 928 }
 929
 930 // ----------------------------------------------------------------------------
 931 // private functions
 932 // ----------------------------------------------------------------------------
 933
 934 // These are the default colors used to map the bitmap colors to the current
 935 // system colors. Note that they are in BGR format because this is what Windows
 936 // wants (and not RGB)
 937
 938 #define BGR_BUTTONTEXT      (RGB(000,000,000))  // black
 939 #define BGR_BUTTONSHADOW    (RGB(128,128,128))  // dark grey
 940 #define BGR_BUTTONFACE      (RGB(192,192,192))  // bright grey
 941 #define BGR_BUTTONHILIGHT   (RGB(255,255,255))  // white
 942 #define BGR_BACKGROUNDSEL   (RGB(255,000,000))  // blue
 943 #define BGR_BACKGROUND      (RGB(255,000,255))  // magenta
 944
 945 void wxMapBitmap(HBITMAP hBitmap, int width, int height)
 946 {
 947   COLORMAP ColorMap[] =
 948   {
 949     {BGR_BUTTONTEXT,    COLOR_BTNTEXT},     // black
 950     {BGR_BUTTONSHADOW,  COLOR_BTNSHADOW},   // dark grey
 951     {BGR_BUTTONFACE,    COLOR_BTNFACE},     // bright grey
 952     {BGR_BUTTONHILIGHT, COLOR_BTNHIGHLIGHT},// white
 953     {BGR_BACKGROUNDSEL, COLOR_HIGHLIGHT},   // blue
 954     {BGR_BACKGROUND,    COLOR_WINDOW}       // magenta
 955   };
 956
 957   int NUM_MAPS = (sizeof(ColorMap)/sizeof(COLORMAP));
 958   int n;
 959   for ( n = 0; n < NUM_MAPS; n++)
 960   {
 961     ColorMap[n].to = ::GetSysColor(ColorMap[n].to);
 962   }
 963
 964   HBITMAP hbmOld;
 965   HDC hdcMem = CreateCompatibleDC(NULL);
 966
 967   if (hdcMem)
 968   {
 969     hbmOld = (HBITMAP) SelectObject(hdcMem, hBitmap);
 970
 971     int i, j, k;
 972     for ( i = 0; i < width; i++)
 973     {
 974         for ( j = 0; j < height; j++)
 975         {
 976             COLORREF pixel = ::GetPixel(hdcMem, i, j);
 977 /*
 978             BYTE red = GetRValue(pixel);
 979             BYTE green = GetGValue(pixel);
 980             BYTE blue = GetBValue(pixel);
 981 */
 982
 983             for ( k = 0; k < NUM_MAPS; k ++)
 984             {
 985                 if ( ColorMap[k].from == pixel )
 986                 {
 987                     /* COLORREF actualPixel = */ ::SetPixel(hdcMem, i, j, ColorMap[k].to);
 988                     break;
 989                 }
 990             }
 991         }
 992     }
 993
 994
 995     SelectObject(hdcMem, hbmOld);
 996     DeleteObject(hdcMem);
 997   }
 998
 999 }
1000
1001 // Some experiments...
1002 #if 0
1003   // What we want to do is create another bitmap which has a depth of 4,
1004   // and set the bits. So probably we want to convert this HBITMAP into a
1005   // DIB, then call SetDIBits.
1006   // AAAGH. The stupid thing is that if newBitmap has a depth of 4 (less than that of
1007   // the screen), then SetDIBits fails.
1008   HBITMAP newBitmap = ::CreateBitmap(totalBitmapWidth, totalBitmapHeight, 1, 4, NULL);
1009   HANDLE newDIB = ::BitmapToDIB((HBITMAP) m_hBitmap, NULL);
1010   LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) GlobalLock(newDIB);
1011
1012   dc = ::GetDC(NULL);
1013 //  LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) newDIB;
1014
1015   int result = ::SetDIBits(dc, newBitmap, 0, lpbmi->biHeight, FindDIBBits((LPSTR)lpbmi), (LPBITMAPINFO)lpbmi,
1016     DIB_PAL_COLORS);
1017   DWORD err = GetLastError();
1018
1019   ::ReleaseDC(NULL, dc);
1020
1021   // Delete the DIB
1022   GlobalUnlock (newDIB);
1023   GlobalFree (newDIB);
1024
1025 //  WXHBITMAP hBitmap2 = wxCreateMappedBitmap((WXHINSTANCE) wxGetInstance(), (WXHBITMAP) m_hBitmap);
1026   // Substitute our new bitmap for the old one
1027   ::DeleteObject((HBITMAP) m_hBitmap);
1028   m_hBitmap = (WXHBITMAP) newBitmap;
1029 #endif
1030
1031
1032 #endif // wxUSE_TOOLBAR && Win95