[wxWidgets.git] / src / os2 / toolbar.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        toolbar.cpp
// Purpose:     wxToolBar
// Author:      David Webster
// Modified by:
// Created:     10/17/99
// RCS-ID:      $Id$
// Copyright:   (c) David Webster
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

#if wxUSE_TOOLBAR && wxUSE_TOOLBAR_NATIVE
#include "wx/toolbar.h"

#include "malloc.h"
#include "wx/os2/private.h"

#include "wx/app.h"         // for GetComCtl32Version

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// these standard constants are not always defined in compilers headers

// Styles
#ifndef TBSTYLE_FLAT
    #define TBSTYLE_LIST            0x1000
    #define TBSTYLE_FLAT            0x0800
    #define TBSTYLE_TRANSPARENT     0x8000
#endif
 // use TBSTYLE_TRANSPARENT if you use TBSTYLE_FLAT

// Messages
#ifndef TB_GETSTYLE
    #define TB_SETSTYLE             (WM_USER + 56)
    #define TB_GETSTYLE             (WM_USER + 57)
#endif

#ifndef TB_HITTEST
    #define TB_HITTEST              (WM_USER + 69)
#endif

// these values correspond to those used by comctl32.dll
#define DEFAULTBITMAPX   16
#define DEFAULTBITMAPY   15
#define DEFAULTBUTTONX   24
#define DEFAULTBUTTONY   24
#define DEFAULTBARHEIGHT 27

// ----------------------------------------------------------------------------
// private function prototypes
// ----------------------------------------------------------------------------

static void wxMapBitmap( HBITMAP hBitmap
                        ,int     nWidth
                        ,int     nHeight
                       );

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxControl)

BEGIN_EVENT_TABLE(wxToolBar, wxToolBarBase)
    EVT_MOUSE_EVENTS(wxToolBar::OnMouseEvent)
    EVT_SYS_COLOUR_CHANGED(wxToolBar::OnSysColourChanged)
END_EVENT_TABLE()

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

class wxToolBarTool : public wxToolBarToolBase
{
public:
    inline wxToolBarTool( wxToolBar*      pTbar
                         ,int             vId
                         ,const wxBitmap& rBitmap1
                         ,const wxBitmap& rBitmap2
                         ,bool            bToggle
                         ,wxObject*       pClientData
                         ,const wxString& rShortHelpString
                         ,const wxString& rLongHelpString
                        ) : wxToolBarToolBase( pTbar
                                              ,vId
                                              ,rBitmap1
                                              ,rBitmap2
                                              ,bToggle
                                              ,pClientData
                                              ,rShortHelpString
                                              ,rLongHelpString
                                             )
    {
        m_nSepCount = 0;
    }

    inline wxToolBarTool( wxToolBar* pTbar
                         ,wxControl* pControl
                        ) : wxToolBarToolBase( pTbar
                                              ,pControl
                                             )
    {
        m_nSepCount = 1;
    }

    // set/get the number of separators which we use to cover the space used by
    // a control in the toolbar
    inline void SetSeparatorsCount(size_t nCount) { m_nSepCount = nCount; }
    inline size_t GetSeparatorsCount(void) const { return m_nSepCount; }

private:
    size_t m_nSepCount;
};


// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxToolBarTool
// ----------------------------------------------------------------------------

wxToolBarToolBase* wxToolBar::CreateTool(
  int                               nId
, const wxBitmap&                   rBitmap1
, const wxBitmap&                   rBitmap2
, bool                              bToggle
, wxObject*                         pClientData
, const wxString&                   rShortHelpString
, const wxString&                   rLongHelpString
)
{
    return(new wxToolBarTool( this
                             ,nId
                             ,rBitmap1
                             ,rBitmap2
                             ,bToggle
                             ,pClientData
                             ,rShortHelpString
                             ,rLongHelpString
                            ));
}

wxToolBarToolBase* wxToolBar::CreateTool(
  wxControl*                        pControl
)
{
    return(new wxToolBarTool( this
                             ,pControl
                            ));
}

// ----------------------------------------------------------------------------
// wxToolBar construction
// ----------------------------------------------------------------------------

void wxToolBar::Init()
{
    m_hBitmap = 0;
    m_nButtons = 0;
    m_defaultWidth = DEFAULTBITMAPX;
    m_defaultHeight = DEFAULTBITMAPY;
}

bool wxToolBar::Create(
  wxWindow*                         pParent
, wxWindowID                        vId
, const wxPoint&                    rPos
, const wxSize&                     rSize
, long                              lStyle
, const wxString&                   rName
)
{
    // common initialisation
    if (!CreateControl( pParent
                       ,vId
                       ,rPos
                       ,rSize
                       ,lStyle
		       , wxDefaultValidator
                       ,rName
                      ))
        return(FALSE);

    // prepare flags
    DWORD                           msflags = 0;      // WS_VISIBLE | WS_CHILD always included
    // TODO
    /*

    if (lStyle & wxBORDER)
        msflags |= WS_BORDER;
    msflags |= TBSTYLE_TOOLTIPS;

    if (style & wxTB_FLAT)
    {
        if (wxTheApp->GetComCtl32Version() > 400)
            msflags |= TBSTYLE_FLAT;
    }

    // MSW-specific initialisation
    if ( !wxControl::MSWCreateControl(TOOLBARCLASSNAME, msflags) )
        return FALSE;

    // toolbar-specific post initialisation
    ::SendMessage(GetHwnd(), TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);

    // set up the colors and fonts
    wxRGBToColour(m_backgroundColour, GetSysColor(COLOR_BTNFACE));
    m_foregroundColour = *wxBLACK;

    SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));

    // position it
    int x = pos.x;
    int y = pos.y;
    int width = size.x;
    int height = size.y;

    if (width <= 0)
        width = 100;
    if (height <= 0)
        height = m_defaultHeight;
    if (x < 0)
        x = 0;
    if (y < 0)
        y = 0;

    SetSize(x, y, width, height);
    */
    return(TRUE);
}

wxToolBar::~wxToolBar()
{
    if (m_hBitmap)
    {
        ::GpiDeleteBitmap((HBITMAP) m_hBitmap);
    }
}

// ----------------------------------------------------------------------------
// adding/removing tools
// ----------------------------------------------------------------------------

bool wxToolBar::DoInsertTool(
  size_t                            WXUNUSED(nPos)
, wxToolBarToolBase*                pTool
)
{
    // nothing special to do here - we really create the toolbar buttons in
    // Realize() later
    pTool->Attach(this);
    return(TRUE);
}

bool wxToolBar::DoDeleteTool(
  size_t                            nPos
, wxToolBarToolBase*                pTool
)
{
    // normally, we only delete one button, but we use several separators to
    // cover the space used by one control sometimes (with old comctl32.dll)
    size_t                          nButtonsToDelete = 1;

    // get the size of the button we're going to delete
    RECTL                           vRect;

    // TODO:
    /*
    if ( !::SendMessage(GetHwnd(), TB_GETITEMRECT, pos, (LPARAM)&r) )
    {
        wxLogLastError(_T("TB_GETITEMRECT"));
    }

    int width = r.right - r.left;

    if ( tool->IsControl() )
    {
        nButtonsToDelete = ((wxToolBarTool *)tool)->GetSeparatorsCount();

        width *= nButtonsToDelete;
    }

    while ( nButtonsToDelete-- > 0 )
    {
        if ( !::SendMessage(GetHwnd(), TB_DELETEBUTTON, pos, 0) )
        {
            wxLogLastError("TB_DELETEBUTTON");

            return FALSE;
        }
    }

    tool->Detach();

    m_nButtons -= nButtonsToDelete;

    // reposition all the controls after this button
    wxToolBarToolsList::Node *node = m_tools.Item(pos);
    for ( node = node->GetNext(); node; node = node->GetNext() )
    {
        wxToolBarToolBase *tool2 = node->GetData();
        if ( tool2->IsControl() )
        {
            int x;
            wxControl *control = tool2->GetControl();
            control->GetPosition(&x, NULL);
            control->Move(x - width, -1);
        }
    }
    */
    return(TRUE);
}

bool wxToolBar::Realize()
{
    size_t                          nTools = GetToolsCount();

    if (nTools == 0)
    {
        // nothing to do
        return(TRUE);
    }

    bool                            bIsVertical = (GetWindowStyle() & wxTB_VERTICAL) != 0;

    // TODO:
    /*
    // First, add the bitmap: we use one bitmap for all toolbar buttons
    // ----------------------------------------------------------------

    // if we already have a bitmap, we'll replace the existing one - otherwise
    // we'll install a new one
    HBITMAP oldToolBarBitmap = (HBITMAP)m_hBitmap;

    int totalBitmapWidth = (int)(m_defaultWidth * nTools);
    int totalBitmapHeight = (int)m_defaultHeight;

    // Create a bitmap for all the tool bitmaps
    HBITMAP hBitmap = ::CreateCompatibleBitmap(ScreenHDC(),
                                               totalBitmapWidth,
                                               totalBitmapHeight);
    if ( !hBitmap )
    {
        wxLogLastError(_T("CreateCompatibleBitmap"));

        return FALSE;
    }

    m_hBitmap = (WXHBITMAP)hBitmap;

    // Now blit all the tools onto this bitmap
    HDC memoryDC = ::CreateCompatibleDC(NULL);
    HBITMAP oldBitmap = (HBITMAP) ::SelectObject(memoryDC, hBitmap);

    HDC memoryDC2 = ::CreateCompatibleDC(NULL);

    // the button position
    wxCoord x = 0;

    // the number of buttons (not separators)
    int nButtons = 0;

    wxToolBarToolsList::Node *node = m_tools.GetFirst();
    while ( node )
    {
        wxToolBarToolBase *tool = node->GetData();
        if ( tool->IsButton() )
        {
            HBITMAP hbmp = GetHbitmapOf(tool->GetBitmap1());
            if ( hbmp )
            {
                HBITMAP oldBitmap2 = (HBITMAP)::SelectObject(memoryDC2, hbmp);
                if ( !BitBlt(memoryDC, x, 0,  m_defaultWidth, m_defaultHeight,
                             memoryDC2, 0, 0, SRCCOPY) )
                {
                    wxLogLastError("BitBlt");
                }

                ::SelectObject(memoryDC2, oldBitmap2);
            }
            else
            {
                wxFAIL_MSG( _T("invalid tool button bitmap") );
            }

            // still inc width and number of buttons because otherwise the
            // subsequent buttons will all be shifted which is rather confusing
            // (and like this you'd see immediately which bitmap was bad)
            x += m_defaultWidth;
            nButtons++;
        }

        node = node->GetNext();
    }

    ::SelectObject(memoryDC, oldBitmap);
    ::DeleteDC(memoryDC);
    ::DeleteDC(memoryDC2);

    // Map to system colours
    wxMapBitmap(hBitmap, totalBitmapWidth, totalBitmapHeight);

    if ( oldToolBarBitmap )
    {
        TBREPLACEBITMAP replaceBitmap;
        replaceBitmap.hInstOld = NULL;
        replaceBitmap.hInstNew = NULL;
        replaceBitmap.nIDOld = (UINT) oldToolBarBitmap;
        replaceBitmap.nIDNew = (UINT) hBitmap;
        replaceBitmap.nButtons = nButtons;
        if ( !::SendMessage(GetHwnd(), TB_REPLACEBITMAP,
                            0, (LPARAM) &replaceBitmap) )
        {
            wxFAIL_MSG(wxT("Could not add bitmap to toolbar"));
        }

        ::DeleteObject(oldToolBarBitmap);

        // Now delete all the buttons
        for ( size_t pos = 0; pos < m_nButtons; pos++ )
        {
            if ( !::SendMessage(GetHwnd(), TB_DELETEBUTTON, 0, 0) )
            {
                wxLogLastError("TB_DELETEBUTTON");
            }
        }
    }
    else // no old bitmap
    {
        TBADDBITMAP addBitmap;
        addBitmap.hInst = 0;
        addBitmap.nID = (UINT) hBitmap;
        if ( ::SendMessage(GetHwnd(), TB_ADDBITMAP,
                           (WPARAM) nButtons, (LPARAM)&addBitmap) == -1 )
        {
            wxFAIL_MSG(wxT("Could not add bitmap to toolbar"));
        }
    }

    // Next add the buttons and separators
    // -----------------------------------

    TBBUTTON *buttons = new TBBUTTON[nTools];

    // this array will hold the indices of all controls in the toolbar
    wxArrayInt controlIds;

    int i = 0;
    int bitmapId = 0;

    for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
    {
        wxToolBarToolBase *tool = node->GetData();

        // don't add separators to the vertical toolbar - looks ugly
        if ( isVertical && tool->IsSeparator() )
            continue;

        TBBUTTON& button = buttons[i];

        wxZeroMemory(button);

        switch ( tool->GetStyle() )
        {
            case wxTOOL_STYLE_CONTROL:
                button.idCommand = tool->GetId();
                // fall through: create just a separator too

            case wxTOOL_STYLE_SEPARATOR:
                button.fsState = TBSTATE_ENABLED;
                button.fsStyle = TBSTYLE_SEP;
                break;

            case wxTOOL_STYLE_BUTTON:
                button.iBitmap = bitmapId;
                button.idCommand = tool->GetId();

                if ( tool->IsEnabled() )
                    button.fsState |= TBSTATE_ENABLED;
                if ( tool->IsToggled() )
                    button.fsState |= TBSTATE_CHECKED;

                button.fsStyle = tool->CanBeToggled() ? TBSTYLE_CHECK
                                                      : TBSTYLE_BUTTON;

                bitmapId++;
                break;
        }

        i++;
    }

    if ( !::SendMessage(GetHwnd(), TB_ADDBUTTONS,
                        (WPARAM)i, (LPARAM)buttons) )
    {
        wxLogLastError("TB_ADDBUTTONS");
    }

    delete [] buttons;

    // Deal with the controls finally
    // ------------------------------

    // adjust the controls size to fit nicely in the toolbar
    size_t index = 0;
    for ( node = m_tools.GetFirst(); node; node = node->GetNext(), index++ )
    {
        wxToolBarToolBase *tool = node->GetData();
        if ( !tool->IsControl() )
            continue;

        wxControl *control = tool->GetControl();

        wxSize size = control->GetSize();

        // the position of the leftmost controls corner
        int left = -1;

        // note that we use TB_GETITEMRECT and not TB_GETRECT because the
        // latter only appeared in v4.70 of comctl32.dll
        RECT r;
        if ( !SendMessage(GetHwnd(), TB_GETITEMRECT,
                          index, (LPARAM)(LPRECT)&r) )
        {
            wxLogLastError("TB_GETITEMRECT");
        }

        // TB_SETBUTTONINFO message is only supported by comctl32.dll 4.71+
        #if defined(_WIN32_IE) && (_WIN32_IE >= 0x400 )
            // available in headers, now check whether it is available now
            // (during run-time)
            if ( wxTheApp->GetComCtl32Version() >= 471 )
            {
                // set the (underlying) separators width to be that of the
                // control
                TBBUTTONINFO tbbi;
                tbbi.cbSize = sizeof(tbbi);
                tbbi.dwMask = TBIF_SIZE;
                tbbi.cx = size.x;
                if ( !SendMessage(GetHwnd(), TB_SETBUTTONINFO,
                                  tool->GetId(), (LPARAM)&tbbi) )
                {
                    // the id is probably invalid?
                    wxLogLastError("TB_SETBUTTONINFO");
                }

            }
            else
        #endif // comctl32.dll 4.71
            // TB_SETBUTTONINFO unavailable
            {
                // try adding several separators to fit the controls width
                int widthSep = r.right - r.left;
                left = r.left;

                TBBUTTON tbb;
                wxZeroMemory(tbb);
                tbb.idCommand = 0;
                tbb.fsState = TBSTATE_ENABLED;
                tbb.fsStyle = TBSTYLE_SEP;

                size_t nSeparators = size.x / widthSep;
                for ( size_t nSep = 0; nSep < nSeparators; nSep++ )
                {
                    if ( !SendMessage(GetHwnd(), TB_INSERTBUTTON,
                                      index, (LPARAM)&tbb) )
                    {
                        wxLogLastError("TB_INSERTBUTTON");
                    }

                    index++;
                }

                // remember the number of separators we used - we'd have to
                // delete all of them later
                ((wxToolBarTool *)tool)->SetSeparatorsCount(nSeparators);

                // adjust the controls width to exactly cover the separators
                control->SetSize((nSeparators + 1)*widthSep, -1);
            }

        // and position the control itself correctly vertically
        int height = r.bottom - r.top;
        int diff = height - size.y;
        if ( diff < 0 )
        {
            // the control is too high, resize to fit
            control->SetSize(-1, height - 2);

            diff = 2;
        }

        control->Move(left == -1 ? r.left : left, r.top + (diff + 1) / 2);
    }

    // the max index is the "real" number of buttons - i.e. counting even the
    // separators which we added just for aligning the controls
    m_nButtons = index;

    if ( !isVertical )
    {
        if ( m_maxRows == 0 )
        {
            // if not set yet, only one row
            SetRows(1);
        }
    }
    else if ( m_nButtons > 0 ) // vertical non empty toolbar
    {
        if ( m_maxRows == 0 )
        {
            // if not set yet, have one column
            SetRows(m_nButtons);
        }
    }
    */
    return TRUE;
}

// ----------------------------------------------------------------------------
// message handlers
// ----------------------------------------------------------------------------

bool wxToolBar::OS2Command(
  WXUINT                            nCmd
, WXWORD                            nId
)
{
    wxToolBarToolBase*              pTool = FindById((int)nId);

    if (!pTool)
        return(FALSE);
    // TODO:
    /*
    if (pTool->CanBeToggled())
    {
        LRESULT state = ::SendMessage(GetHwnd(), TB_GETSTATE, id, 0);
        tool->SetToggle((state & TBSTATE_CHECKED) != 0);
    }

    bool toggled = tool->IsToggled();

    // OnLeftClick() can veto the button state change - for buttons which may
    // be toggled only, of couse
    if ( !OnLeftClick((int)id, toggled) && tool->CanBeToggled() )
    {
        // revert back
        toggled = !toggled;
        tool->SetToggle(toggled);

        ::SendMessage(GetHwnd(), TB_CHECKBUTTON, id, MAKELONG(toggled, 0));
    }
    */
    return(TRUE);
}

bool wxToolBar::OS2OnNotify(
  int                               WXUNUSED(idCtrl)
, WXLPARAM                          lParam
, WXLPARAM*                         pResult
)
{
    // TODO:
    /*
    // First check if this applies to us
    NMHDR *hdr = (NMHDR *)lParam;

    // the tooltips control created by the toolbar is sometimes Unicode, even
    // in an ANSI application - this seems to be a bug in comctl32.dll v5
    int code = (int)hdr->code;
    if ( (code != TTN_NEEDTEXTA) && (code != TTN_NEEDTEXTW) )
        return FALSE;

    HWND toolTipWnd = (HWND)::SendMessage((HWND)GetHWND(), TB_GETTOOLTIPS, 0, 0);
    if ( toolTipWnd != hdr->hwndFrom )
        return FALSE;

    LPTOOLTIPTEXT ttText = (LPTOOLTIPTEXT)lParam;
    int id = (int)ttText->hdr.idFrom;

    wxToolBarToolBase *tool = FindById(id);
    if ( !tool )
        return FALSE;

    const wxString& help = tool->GetShortHelp();

    if ( !help.IsEmpty() )
    {
        if ( code == TTN_NEEDTEXTA )
        {
            ttText->lpszText = (wxChar *)help.c_str();
        }
#if (_WIN32_IE >= 0x0300)
        else
        {
            // FIXME this is a temp hack only until I understand better what
            //       must be done in both ANSI and Unicode builds

            size_t lenAnsi = help.Len();
            #ifdef __MWERKS__
                // MetroWerks doesn't like calling mbstowcs with NULL argument
                size_t lenUnicode = 2*lenAnsi;
            #else
                size_t lenUnicode = mbstowcs(NULL, help, lenAnsi);
            #endif

            // using the pointer of right type avoids us doing all sorts of
            // pointer arithmetics ourselves
            wchar_t *dst = (wchar_t *)ttText->szText,
                    *pwz = new wchar_t[lenUnicode + 1];
            mbstowcs(pwz, help, lenAnsi + 1);
            memcpy(dst, pwz, lenUnicode*sizeof(wchar_t));

            // put the terminating _wide_ NUL
            dst[lenUnicode] = 0;

            delete [] pwz;
        }
#endif // _WIN32_IE >= 0x0300
    }

    // For backward compatibility...
    OnMouseEnter(tool->GetId());
    */
    return(TRUE);
}

// ----------------------------------------------------------------------------
// toolbar geometry
// ----------------------------------------------------------------------------

void wxToolBar::SetToolBitmapSize(
  const wxSize&                     rSize
)
{
    wxToolBarBase::SetToolBitmapSize(rSize);

    // ::SendMessage(GetHwnd(), TB_SETBITMAPSIZE, 0, MAKELONG(size.x, size.y));
}

void wxToolBar::SetRows(
  int                               nRows
)
{
    if (nRows == m_maxRows)
    {
        // avoid resizing the frame uselessly
        return;
    }
    // TODO:
    /*
    // TRUE in wParam means to create at least as many rows, FALSE -
    // at most as many
    RECT rect;
    ::SendMessage(GetHwnd(), TB_SETROWS,
                  MAKEWPARAM(nRows, !(GetWindowStyle() & wxTB_VERTICAL)),
                  (LPARAM) &rect);

    m_maxRows = nRows;

    UpdateSize();
    */
}

// The button size is bigger than the bitmap size
wxSize wxToolBar::GetToolSize() const
{
    // TODO:
    /*
    // TB_GETBUTTONSIZE is supported from version 4.70
#if defined(_WIN32_IE) && (_WIN32_IE >= 0x300 )
    if ( wxTheApp->GetComCtl32Version() >= 470 )
    {
        DWORD dw = ::SendMessage(GetHwnd(), TB_GETBUTTONSIZE, 0, 0);

        return wxSize(LOWORD(dw), HIWORD(dw));
    }
    else
#endif // comctl32.dll 4.70+
    {
        // defaults
        return wxSize(m_defaultWidth + 8, m_defaultHeight + 7);
    }
    */
    return wxSize(m_defaultWidth + 8, m_defaultHeight + 7);
}

wxToolBarToolBase *wxToolBar::FindToolForPosition(
  wxCoord                           vX
, wxCoord                           vY
) const
{
    POINTL                          vPt;

    vPt.x = vX;
    vPt.y = vY;

    int                             nIndex = 0; //(int)::SendMessage(GetHwnd(), TB_HITTEST, 0, (LPARAM)&pt);
    if (nIndex < 0)
    {
        // it's a separator or there is no tool at all there
        return (wxToolBarToolBase *)NULL;
    }
    return(m_tools.Item((size_t)nIndex)->GetData());
}

void wxToolBar::UpdateSize()
{
    // we must refresh the frame after the toolbar size (possibly) changed
    wxFrame*                        pFrame = wxDynamicCast(GetParent(), wxFrame);

    if (pFrame)
    {
        // don't change the size, we just need to generate a WM_SIZE
        RECTL                       vR;
        // TODO:
        /*
        if ( !GetWindowRect(GetHwndOf(frame), &r) )
        {
            wxLogLastError(_T("GetWindowRect"));
        }

        (void)::SendMessage(GetHwndOf(frame), WM_SIZE, SIZE_RESTORED,
                            MAKELPARAM(r.right - r.left, r.bottom - r.top));
        */
    }
}

// ----------------------------------------------------------------------------
// tool state
// ----------------------------------------------------------------------------

void wxToolBar::DoEnableTool(
  wxToolBarToolBase*                pTool
, bool                              bEnable
)
{
    // TODO:
    /*
    ::SendMessage(GetHwnd(), TB_ENABLEBUTTON,
                  (WPARAM)tool->GetId(), (LPARAM)MAKELONG(enable, 0));
    */
}

void wxToolBar::DoToggleTool(
  wxToolBarToolBase*                pTool
, bool                              bToggle
)
{
    // TODO:
    /*
    ::SendMessage(GetHwnd(), TB_CHECKBUTTON,
                  (WPARAM)tool->GetId(), (LPARAM)MAKELONG(toggle, 0));
    */
}

void wxToolBar::DoSetToggle(
  wxToolBarToolBase*                pTool
, bool                              bToggle
)
{
    // VZ: AFAIK, the button has to be created either with TBSTYLE_CHECK or
    //     without, so we really need to delete the button and recreate it here
    wxFAIL_MSG( _T("not implemented") );
}

// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------

// Responds to colour changes, and passes event on to children.
void wxToolBar::OnSysColourChanged(
  wxSysColourChangedEvent&          rEvent
)
{
    // TODO:
    /*
    m_backgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
          GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
    */

    // Remap the buttons
    Realize();

    Refresh();

    // Propagate the event to the non-top-level children
    wxWindow::OnSysColourChanged(rEvent);
}

void wxToolBar::OnMouseEvent(
  wxMouseEvent&                     rEvent
)
{
    if (rEvent.RightDown())
    {
        // For now, we don't have an id. Later we could
        // try finding the tool.
        OnRightClick( (int)-1
                     ,rEvent.GetX()
                     ,rEvent.GetY()
                    );
    }
    else
    {
        rEvent.Skip();
    }
}

MRESULT wxToolBar::OS2WindowProc(
  WXUINT                            ulMsg
, MPARAM                            wParam
, MPARAM                            lParam
)
{
    // TODO:
    /*
    if (nMsg == WM_SIZE)
    {
        // calculate our minor dimenstion ourselves - we're confusing the
        // standard logic (TB_AUTOSIZE) with our horizontal toolbars and other
        // hacks
        RECT r;
        if ( ::SendMessage(GetHwnd(), TB_GETITEMRECT, 0, (LPARAM)&r) )
        {
            int w, h;

            if ( GetWindowStyle() & wxTB_VERTICAL )
            {
                w = r.right - r.left;
                if ( m_maxRows )
                {
                    w *= (m_nButtons + m_maxRows - 1)/m_maxRows;
                }
                h = HIWORD(lParam);
            }
            else
            {
                w = LOWORD(lParam);
                h = r.bottom - r.top;
                if ( m_maxRows )
                {
                    h += 6; // FIXME: this is the separator line height...
                    h *= m_maxRows;
                }
            }

            if ( MAKELPARAM(w, h) != lParam )
            {
                // size really changed
                SetSize(w, h);
            }

            // message processed
            return 0;
        }
    }

    return wxControl::MSWWindowProc(nMsg, wParam, lParam);
    */
    return((MRESULT)0);
}

// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------

// These are the default colors used to map the bitmap colors to the current
// system colors. Note that they are in BGR format because this is what Windows
// wants (and not RGB)

#define BGR_BUTTONTEXT      (RGB(000,000,000))  // black
#define BGR_BUTTONSHADOW    (RGB(128,128,128))  // dark grey
#define BGR_BUTTONFACE      (RGB(192,192,192))  // bright grey
#define BGR_BUTTONHILIGHT   (RGB(255,255,255))  // white
#define BGR_BACKGROUNDSEL   (RGB(255,000,000))  // blue
#define BGR_BACKGROUND      (RGB(255,000,255))  // magenta

void wxMapBitmap(
  HBITMAP                           hBitmap
, int                               nWidth
, int                               nHeight
)
{
  // TODO:
  /*
  COLORMAP ColorMap[] =
  {
    {BGR_BUTTONTEXT,    COLOR_BTNTEXT},     // black
    {BGR_BUTTONSHADOW,  COLOR_BTNSHADOW},   // dark grey
    {BGR_BUTTONFACE,    COLOR_BTNFACE},     // bright grey
    {BGR_BUTTONHILIGHT, COLOR_BTNHIGHLIGHT},// white
    {BGR_BACKGROUNDSEL, COLOR_HIGHLIGHT},   // blue
    {BGR_BACKGROUND,    COLOR_WINDOW}       // magenta
  };

  int NUM_MAPS = (sizeof(ColorMap)/sizeof(COLORMAP));
  int n;
  for ( n = 0; n < NUM_MAPS; n++)
  {
    ColorMap[n].to = ::GetSysColor(ColorMap[n].to);
  }

  HBITMAP hbmOld;
  HDC hdcMem = CreateCompatibleDC(NULL);

  if (hdcMem)
  {
    hbmOld = (HBITMAP) SelectObject(hdcMem, hBitmap);

    int i, j, k;
    for ( i = 0; i < width; i++)
    {
        for ( j = 0; j < height; j++)
        {
            COLORREF pixel = ::GetPixel(hdcMem, i, j);
//
//            BYTE red = GetRValue(pixel);
//            BYTE green = GetGValue(pixel);
//            BYTE blue = GetBValue(pixel);
//

            for ( k = 0; k < NUM_MAPS; k ++)
            {
                if ( ColorMap[k].from == pixel )
                {
                    // COLORREF actualPixel =  ::SetPixel(hdcMem, i, j, ColorMap[k].to);
                    break;
                }
            }
        }
    }


    SelectObject(hdcMem, hbmOld);
    DeleteObject(hdcMem);
  }
  */
}

// Some experiments...
#if 0
  // What we want to do is create another bitmap which has a depth of 4,
  // and set the bits. So probably we want to convert this HBITMAP into a
  // DIB, then call SetDIBits.
  // AAAGH. The stupid thing is that if newBitmap has a depth of 4 (less than that of
  // the screen), then SetDIBits fails.
  HBITMAP newBitmap = ::CreateBitmap(totalBitmapWidth, totalBitmapHeight, 1, 4, NULL);
  HANDLE newDIB = ::BitmapToDIB((HBITMAP) m_hBitmap, NULL);
  LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) GlobalLock(newDIB);

  dc = ::GetDC(NULL);
//  LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) newDIB;

  int result = ::SetDIBits(dc, newBitmap, 0, lpbmi->biHeight, FindDIBBits((LPSTR)lpbmi), (LPBITMAPINFO)lpbmi,
    DIB_PAL_COLORS);
  DWORD err = GetLastError();

  ::ReleaseDC(NULL, dc);

  // Delete the DIB
  GlobalUnlock (newDIB);
  GlobalFree (newDIB);

//  WXHBITMAP hBitmap2 = wxCreateMappedBitmap((WXHINSTANCE) wxGetInstance(), (WXHBITMAP) m_hBitmap);
  // Substitute our new bitmap for the old one
  ::DeleteObject((HBITMAP) m_hBitmap);
  m_hBitmap = (WXHBITMAP) newBitmap;
#endif

#endif