src/msw/ownerdrw.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/ownerdrw.cpp
// Purpose:     implementation of wxOwnerDrawn class
// Author:      Vadim Zeitlin
// Modified by:
// Created:     13.11.97
// RCS-ID:      $Id$
// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/window.h"
    #include "wx/msw/private.h"
    #include "wx/font.h"
    #include "wx/bitmap.h"
    #include "wx/dcmemory.h"
    #include "wx/menu.h"
    #include "wx/utils.h"
    #include "wx/settings.h"
    #include "wx/menuitem.h"
    #include "wx/module.h"
#endif

#include "wx/ownerdrw.h"
#include "wx/fontutil.h"

#if wxUSE_OWNER_DRAWN

#ifndef SPI_GETKEYBOARDCUES
#define SPI_GETKEYBOARDCUES 0x100A
#endif

class wxMSWSystemMenuFontModule : public wxModule
{
public:

    virtual bool OnInit()
    {
        ms_systemMenuFont = new wxFont;

#if defined(__WXMSW__) && defined(__WIN32__) && defined(SM_CXMENUCHECK)
        NONCLIENTMETRICS nm;
        nm.cbSize = sizeof(NONCLIENTMETRICS);
        SystemParametersInfo(SPI_GETNONCLIENTMETRICS,0,&nm,0);

        ms_systemMenuButtonWidth = nm.iMenuHeight;
        ms_systemMenuHeight = nm.iMenuHeight;

        // create menu font
        wxNativeFontInfo info;
        memcpy(&info.lf, &nm.lfMenuFont, sizeof(LOGFONT));
        ms_systemMenuFont->Create(info);

        if (SystemParametersInfo(SPI_GETKEYBOARDCUES, 0, &ms_showCues, 0) == 0)
            ms_showCues = true;
#endif

        return true;
    }

    virtual void OnExit()
    {
        delete ms_systemMenuFont;
        ms_systemMenuFont = NULL;
    }

    static wxFont* ms_systemMenuFont;
    static int ms_systemMenuButtonWidth;   // windows clean install default
    static int ms_systemMenuHeight;        // windows clean install default
    static bool ms_showCues;
private:
    DECLARE_DYNAMIC_CLASS(wxMSWSystemMenuFontModule)
};

// these static variables are from the wxMSWSystemMenuFontModule object
// and reflect the system settings returned by the Win32 API's
// SystemParametersInfo() call.

wxFont* wxMSWSystemMenuFontModule::ms_systemMenuFont = NULL;
int wxMSWSystemMenuFontModule::ms_systemMenuButtonWidth = 18;   // windows clean install default
int wxMSWSystemMenuFontModule::ms_systemMenuHeight = 18;        // windows clean install default
bool wxMSWSystemMenuFontModule::ms_showCues = true;

IMPLEMENT_DYNAMIC_CLASS(wxMSWSystemMenuFontModule, wxModule)


// VC++ 6 gives a warning here:
//
//      return type for 'OwnerDrawnSet_wxImplementation_HashTable::iterator::
//      operator ->' is 'class wxOwnerDrawn ** ' (ie; not a UDT or reference to
//      a UDT.  Will produce errors if applied using infix notation.
//
// shut it down
#if defined __VISUALC__ && __VISUALC__ <= 1300
    #if __VISUALC__ >= 1200
        #pragma warning(push)
        #define POP_WARNINGS
    #endif
    #pragma warning(disable: 4284)
#endif

#include "wx/hashset.h"
WX_DECLARE_HASH_SET(wxOwnerDrawn*, wxPointerHash, wxPointerEqual, OwnerDrawnSet);

#ifdef POP_WARNINGS
    #pragma warning(pop)
#endif

// ============================================================================
// implementation of wxOwnerDrawn class
// ============================================================================

// ctor
// ----
wxOwnerDrawn::wxOwnerDrawn(const wxString& str,
                           bool bCheckable,
                           bool bMenuItem)
            : m_strName(str)
{
    if ( ms_nDefaultMarginWidth == 0 )
    {
       ms_nDefaultMarginWidth = ::GetSystemMetrics(SM_CXMENUCHECK) +
                                wxSystemSettings::GetMetric(wxSYS_EDGE_X);
       ms_nLastMarginWidth = ms_nDefaultMarginWidth;
    }

    m_bCheckable   = bCheckable;
    m_bOwnerDrawn  = false;
    m_isMenuItem   = bMenuItem;
    m_nHeight      = 0;
    m_nMarginWidth = ms_nLastMarginWidth;
    m_nMinHeight   = wxMSWSystemMenuFontModule::ms_systemMenuHeight;
}

wxOwnerDrawn::~wxOwnerDrawn()
{
}

bool wxOwnerDrawn::IsMenuItem() const
{
    return m_isMenuItem;
}


// these items will be set during the first invocation of the c'tor,
// because the values will be determined by checking the system settings,
// which is a chunk of code
size_t wxOwnerDrawn::ms_nDefaultMarginWidth = 0;
size_t wxOwnerDrawn::ms_nLastMarginWidth = 0;


// drawing
// -------

wxFont wxOwnerDrawn::GetFontToUse() const
{
    wxFont font = m_font;
    if ( !font.Ok() )
    {
        if ( IsMenuItem() )
            font = *wxMSWSystemMenuFontModule::ms_systemMenuFont;

        if ( !font.Ok() )
            font = *wxNORMAL_FONT;
    }

    return font;
}

// get size of the item
// The item size includes the menu string, the accel string,
// the bitmap and size for a submenu expansion arrow...
bool wxOwnerDrawn::OnMeasureItem(size_t *pwidth, size_t *pheight)
{
    if ( IsOwnerDrawn() )
    {
        wxMemoryDC dc;

        wxString str = wxStripMenuCodes(m_strName);

        // if we have a valid accel string, then pad out
        // the menu string so that the menu and accel string are not
        // placed on top of each other.
        if ( !m_strAccel.empty() )
        {
            str.Pad(str.length()%8);
            str += m_strAccel;
        }

        dc.SetFont(GetFontToUse());

        dc.GetTextExtent(str, (long *)pwidth, (long *)pheight);

        // add space at the end of the menu for the submenu expansion arrow
        // this will also allow offsetting the accel string from the right edge
        *pwidth += GetMarginWidth() + 16;
    }
    else // don't draw the text, just the bitmap (if any)
    {
        *pwidth =
        *pheight = 0;
    }

    // increase size to accommodate bigger bitmaps if necessary
    if (m_bmpChecked.Ok())
    {
        // Is BMP height larger then text height?
        size_t adjustedHeight = m_bmpChecked.GetHeight() +
                                  2*wxSystemSettings::GetMetric(wxSYS_EDGE_Y);
        if (*pheight < adjustedHeight)
            *pheight = adjustedHeight;

        const size_t widthBmp = m_bmpChecked.GetWidth();
        if ( IsOwnerDrawn() )
        {
            // widen the margin to fit the bitmap if necessary
            if ((size_t)GetMarginWidth() < widthBmp)
                SetMarginWidth(widthBmp);
        }
        else // we must allocate enough space for the bitmap
        {
            *pwidth += widthBmp;
        }
    }

    // add a 4-pixel separator, otherwise menus look cluttered
    *pwidth += 4;

    // make sure that this item is at least as tall as the system menu height
    if ( *pheight < m_nMinHeight )
      *pheight = m_nMinHeight;

    // remember height for use in OnDrawItem
    m_nHeight = *pheight;

    return true;
}

// draw the item
bool wxOwnerDrawn::OnDrawItem(wxDC& dc,
                              const wxRect& rc,
                              wxODAction act,
                              wxODStatus st)
{
    // we do nothing on focus change
    if ( act == wxODFocusChanged )
        return true;


    // this flag determines whether or not an edge will
    // be drawn around the bitmap. In most "windows classic"
    // applications, a 1-pixel highlight edge is drawn around
    // the bitmap of an item when it is selected.  However,
    // with the new "luna" theme, no edge is drawn around
    // the bitmap because the background is white (this applies
    // only to "non-XP style" menus w/ bitmaps --
    // see IE 6 menus for an example)

    bool draw_bitmap_edge = true;

    // set the colors
    // --------------
    DWORD colBack, colText;
    if ( st & wxODSelected )
    {
        colBack = GetSysColor(COLOR_HIGHLIGHT);
        if (!(st & wxODDisabled))
        {
            colText = GetSysColor(COLOR_HIGHLIGHTTEXT);
        }
        else
        {
            colText = GetSysColor(COLOR_GRAYTEXT);
        }
    }
    else
    {
        // fall back to default colors if none explicitly specified
        colBack = m_colBack.Ok() ? wxColourToPalRGB(m_colBack)
                                 : GetSysColor(COLOR_MENU);
        colText = m_colText.Ok() ? wxColourToPalRGB(m_colText)
                                 : GetSysColor(COLOR_MENUTEXT);
    }

    if ( IsOwnerDrawn() )
    {
        // don't draw an edge around the bitmap, if background is white ...
        DWORD menu_bg_color = GetSysColor(COLOR_MENU);
        if (    ( GetRValue( menu_bg_color ) >= 0xf0 &&
                  GetGValue( menu_bg_color ) >= 0xf0 &&
                  GetBValue( menu_bg_color ) >= 0xf0 )
          )
        {
            draw_bitmap_edge = false;
        }
    }
    else // edge doesn't look well with default Windows drawing
    {
        draw_bitmap_edge = false;
    }


    HDC hdc = GetHdcOf(dc);
    COLORREF colOldText = ::SetTextColor(hdc, colText),
             colOldBack = ::SetBkColor(hdc, colBack);

    // *2, as in wxSYS_EDGE_Y
    int margin = GetMarginWidth() + 2 * wxSystemSettings::GetMetric(wxSYS_EDGE_X);

    // select the font and draw the text
    // ---------------------------------


    // determine where to draw and leave space for a check-mark.
    // + 1 pixel to separate the edge from the highlight rectangle
    int xText = rc.x + margin + 1;


    // using native API because it recognizes '&'
    if ( IsOwnerDrawn() )
    {
        int nPrevMode = SetBkMode(hdc, TRANSPARENT);
        AutoHBRUSH hbr(colBack);
        SelectInHDC selBrush(hdc, hbr);

        RECT rectFill = { rc.GetLeft(), rc.GetTop(),
                            rc.GetRight() + 1, rc.GetBottom() + 1 };

        if ( (st & wxODSelected) && m_bmpChecked.Ok() && draw_bitmap_edge )
        {
            // only draw the highlight under the text, not under
            // the bitmap or checkmark
            rectFill.left = xText;
        }

        FillRect(hdc, &rectFill, hbr);

        // use default font if no font set
        wxFont fontToUse = GetFontToUse();
        SelectInHDC selFont(hdc, GetHfontOf(fontToUse));

        wxString strMenuText = m_strName.BeforeFirst('\t');

        xText += 3; // separate text from the highlight rectangle

        SIZE sizeRect;
        ::GetTextExtentPoint32(hdc, strMenuText.c_str(), strMenuText.length(), &sizeRect);
        ::DrawState(hdc, NULL, NULL,
                    (LPARAM)strMenuText.c_str(), strMenuText.length(),
                    xText, rc.y + (int) ((rc.GetHeight()-sizeRect.cy)/2.0), // centre text vertically
                    rc.GetWidth()-margin, sizeRect.cy,
                    DST_PREFIXTEXT |
                    (((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0) |
                    (((st & wxODHidePrefix) && !wxMSWSystemMenuFontModule::ms_showCues) ? 512 : 0)); // 512 == DSS_HIDEPREFIX

        // ::SetTextAlign(hdc, TA_RIGHT) doesn't work with DSS_DISABLED or DSS_MONO
        // as the last parameter in DrawState() (at least with Windows98). So we have
        // to take care of right alignment ourselves.
        if ( !m_strAccel.empty() )
        {
            int accel_width, accel_height;
            dc.GetTextExtent(m_strAccel, &accel_width, &accel_height);
            // right align accel string with right edge of menu ( offset by the
            // margin width )
            ::DrawState(hdc, NULL, NULL,
                    (LPARAM)m_strAccel.c_str(), m_strAccel.length(),
                    rc.GetWidth()-16-accel_width, rc.y+(int) ((rc.GetHeight()-sizeRect.cy)/2.0),
                    0, 0,
                    DST_TEXT |
                    (((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0));
        }

        (void)SetBkMode(hdc, nPrevMode);
    }


    // draw the bitmap
    // ---------------
    if ( IsCheckable() && !m_bmpChecked.Ok() )
    {
        if ( st & wxODChecked )
        {
            // what goes on: DrawFrameControl creates a b/w mask,
            // then we copy it to screen to have right colors

            // first create a monochrome bitmap in a memory DC
            HDC hdcMem = CreateCompatibleDC(hdc);
            HBITMAP hbmpCheck = CreateBitmap(margin, m_nHeight, 1, 1, 0);
            SelectObject(hdcMem, hbmpCheck);

            // then draw a check mark into it
            RECT rect = { 0, 0, margin, m_nHeight };
            if ( m_nHeight > 0 )
            {
                ::DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
            }

            // finally copy it to screen DC and clean up
            BitBlt(hdc, rc.x, rc.y, margin, m_nHeight, hdcMem, 0, 0, SRCCOPY);

            DeleteDC(hdcMem);
            DeleteObject(hbmpCheck);
        }
    }
    else
    {
        wxBitmap bmp;

        if ( st & wxODDisabled )
        {
            bmp = GetDisabledBitmap();
        }

        if ( !bmp.Ok() )
        {
            // for not checkable bitmaps we should always use unchecked one because
            // their checked bitmap is not set
            bmp = GetBitmap(!IsCheckable() || (st & wxODChecked));
        }

        if ( bmp.Ok() )
        {
            wxMemoryDC dcMem(&dc);
            dcMem.SelectObject(bmp);

            // center bitmap
            int nBmpWidth = bmp.GetWidth(),
                nBmpHeight = bmp.GetHeight();

            // there should be enough space!
            wxASSERT((nBmpWidth <= rc.GetWidth()) && (nBmpHeight <= rc.GetHeight()));

            int heightDiff = m_nHeight - nBmpHeight;
            dc.Blit(rc.x + (margin - nBmpWidth) / 2,
                    rc.y + heightDiff / 2,
                    nBmpWidth, nBmpHeight,
                    &dcMem, 0, 0, wxCOPY, true /* use mask */);

            if ( ( st & wxODSelected ) && !( st & wxODDisabled ) && draw_bitmap_edge )
            {
                RECT rectBmp = { rc.GetLeft(), rc.GetTop(),
                                 rc.GetLeft() + margin,
                                 rc.GetTop() + m_nHeight };
                SetBkColor(hdc, colBack);

                DrawEdge(hdc, &rectBmp, BDR_RAISEDINNER, BF_RECT);
            }
        }
    }

    ::SetTextColor(hdc, colOldText);
    ::SetBkColor(hdc, colOldBack);

    return true;
}


#endif // wxUSE_OWNER_DRAWN
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/ownerdrw.cpp
	3	// Purpose: implementation of wxOwnerDrawn class
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 13.11.97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
	9	// Licence: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// For compilers that support precompilation, includes "wx.h".
	13	#include "wx/wxprec.h"
	14
	15	#ifdef __BORLANDC__
	16	#pragma hdrstop
	17	#endif
	18
	19	#ifndef WX_PRECOMP
	20	#include "wx/window.h"
	21	#include "wx/msw/private.h"
	22	#include "wx/font.h"
	23	#include "wx/bitmap.h"
	24	#include "wx/dcmemory.h"
	25	#include "wx/menu.h"
	26	#include "wx/utils.h"
	27	#include "wx/settings.h"
	28	#include "wx/menuitem.h"
	29	#include "wx/module.h"
	30	#endif
	31
	32	#include "wx/ownerdrw.h"
	33	#include "wx/fontutil.h"
	34
	35	#if wxUSE_OWNER_DRAWN
	36
	37	#ifndef SPI_GETKEYBOARDCUES
	38	#define SPI_GETKEYBOARDCUES 0x100A
	39	#endif
	40
	41	class wxMSWSystemMenuFontModule : public wxModule
	42	{
	43	public:
	44
	45	virtual bool OnInit()
	46	{
	47	ms_systemMenuFont = new wxFont;
	48
	49	#if defined(__WXMSW__) && defined(__WIN32__) && defined(SM_CXMENUCHECK)
	50	NONCLIENTMETRICS nm;
	51	nm.cbSize = sizeof(NONCLIENTMETRICS);
	52	SystemParametersInfo(SPI_GETNONCLIENTMETRICS,0,&nm,0);
	53
	54	ms_systemMenuButtonWidth = nm.iMenuHeight;
	55	ms_systemMenuHeight = nm.iMenuHeight;
	56
	57	// create menu font
	58	wxNativeFontInfo info;
	59	memcpy(&info.lf, &nm.lfMenuFont, sizeof(LOGFONT));
	60	ms_systemMenuFont->Create(info);
	61
	62	if (SystemParametersInfo(SPI_GETKEYBOARDCUES, 0, &ms_showCues, 0) == 0)
	63	ms_showCues = true;
	64	#endif
	65
	66	return true;
	67	}
	68
	69	virtual void OnExit()
	70	{
	71	delete ms_systemMenuFont;
	72	ms_systemMenuFont = NULL;
	73	}
	74
	75	static wxFont* ms_systemMenuFont;
	76	static int ms_systemMenuButtonWidth; // windows clean install default
	77	static int ms_systemMenuHeight; // windows clean install default
	78	static bool ms_showCues;
	79	private:
	80	DECLARE_DYNAMIC_CLASS(wxMSWSystemMenuFontModule)
	81	};
	82
	83	// these static variables are from the wxMSWSystemMenuFontModule object
	84	// and reflect the system settings returned by the Win32 API's
	85	// SystemParametersInfo() call.
	86
	87	wxFont* wxMSWSystemMenuFontModule::ms_systemMenuFont = NULL;
	88	int wxMSWSystemMenuFontModule::ms_systemMenuButtonWidth = 18; // windows clean install default
	89	int wxMSWSystemMenuFontModule::ms_systemMenuHeight = 18; // windows clean install default
	90	bool wxMSWSystemMenuFontModule::ms_showCues = true;
	91
	92	IMPLEMENT_DYNAMIC_CLASS(wxMSWSystemMenuFontModule, wxModule)
	93
	94
	95	// VC++ 6 gives a warning here:
	96	//
	97	// return type for 'OwnerDrawnSet_wxImplementation_HashTable::iterator::
	98	// operator ->' is 'class wxOwnerDrawn ** ' (ie; not a UDT or reference to
	99	// a UDT. Will produce errors if applied using infix notation.
	100	//
	101	// shut it down
	102	#if defined __VISUALC__ && __VISUALC__ <= 1300
	103	#if __VISUALC__ >= 1200
	104	#pragma warning(push)
	105	#define POP_WARNINGS
	106	#endif
	107	#pragma warning(disable: 4284)
	108	#endif
	109
	110	#include "wx/hashset.h"
	111	WX_DECLARE_HASH_SET(wxOwnerDrawn*, wxPointerHash, wxPointerEqual, OwnerDrawnSet);
	112
	113	#ifdef POP_WARNINGS
	114	#pragma warning(pop)
	115	#endif
	116
	117	// ============================================================================
	118	// implementation of wxOwnerDrawn class
	119	// ============================================================================
	120
	121	// ctor
	122	// ----
	123	wxOwnerDrawn::wxOwnerDrawn(const wxString& str,
	124	bool bCheckable,
	125	bool bMenuItem)
	126	: m_strName(str)
	127	{
	128	if ( ms_nDefaultMarginWidth == 0 )
	129	{
	130	ms_nDefaultMarginWidth = ::GetSystemMetrics(SM_CXMENUCHECK) +
	131	wxSystemSettings::GetMetric(wxSYS_EDGE_X);
	132	ms_nLastMarginWidth = ms_nDefaultMarginWidth;
	133	}
	134
	135	m_bCheckable = bCheckable;
	136	m_bOwnerDrawn = false;
	137	m_isMenuItem = bMenuItem;
	138	m_nHeight = 0;
	139	m_nMarginWidth = ms_nLastMarginWidth;
	140	m_nMinHeight = wxMSWSystemMenuFontModule::ms_systemMenuHeight;
	141	}
	142
	143	wxOwnerDrawn::~wxOwnerDrawn()
	144	{
	145	}
	146
	147	bool wxOwnerDrawn::IsMenuItem() const
	148	{
	149	return m_isMenuItem;
	150	}
	151
	152
	153	// these items will be set during the first invocation of the c'tor,
	154	// because the values will be determined by checking the system settings,
	155	// which is a chunk of code
	156	size_t wxOwnerDrawn::ms_nDefaultMarginWidth = 0;
	157	size_t wxOwnerDrawn::ms_nLastMarginWidth = 0;
	158
	159
	160	// drawing
	161	// -------
	162
	163	wxFont wxOwnerDrawn::GetFontToUse() const
	164	{
	165	wxFont font = m_font;
	166	if ( !font.Ok() )
	167	{
	168	if ( IsMenuItem() )
	169	font = *wxMSWSystemMenuFontModule::ms_systemMenuFont;
	170
	171	if ( !font.Ok() )
	172	font = *wxNORMAL_FONT;
	173	}
	174
	175	return font;
	176	}
	177
	178	// get size of the item
	179	// The item size includes the menu string, the accel string,
	180	// the bitmap and size for a submenu expansion arrow...
	181	bool wxOwnerDrawn::OnMeasureItem(size_t pwidth, size_t pheight)
	182	{
	183	if ( IsOwnerDrawn() )
	184	{
	185	wxMemoryDC dc;
	186
	187	wxString str = wxStripMenuCodes(m_strName);
	188
	189	// if we have a valid accel string, then pad out
	190	// the menu string so that the menu and accel string are not
	191	// placed on top of each other.
	192	if ( !m_strAccel.empty() )
	193	{
	194	str.Pad(str.length()%8);
	195	str += m_strAccel;
	196	}
	197
	198	dc.SetFont(GetFontToUse());
	199
	200	dc.GetTextExtent(str, (long )pwidth, (long )pheight);
	201
	202	// add space at the end of the menu for the submenu expansion arrow
	203	// this will also allow offsetting the accel string from the right edge
	204	*pwidth += GetMarginWidth() + 16;
	205	}
	206	else // don't draw the text, just the bitmap (if any)
	207	{
	208	*pwidth =
	209	*pheight = 0;
	210	}
	211
	212	// increase size to accommodate bigger bitmaps if necessary
	213	if (m_bmpChecked.Ok())
	214	{
	215	// Is BMP height larger then text height?
	216	size_t adjustedHeight = m_bmpChecked.GetHeight() +
	217	2*wxSystemSettings::GetMetric(wxSYS_EDGE_Y);
	218	if (*pheight < adjustedHeight)
	219	*pheight = adjustedHeight;
	220
	221	const size_t widthBmp = m_bmpChecked.GetWidth();
	222	if ( IsOwnerDrawn() )
	223	{
	224	// widen the margin to fit the bitmap if necessary
	225	if ((size_t)GetMarginWidth() < widthBmp)
	226	SetMarginWidth(widthBmp);
	227	}
	228	else // we must allocate enough space for the bitmap
	229	{
	230	*pwidth += widthBmp;
	231	}
	232	}
	233
	234	// add a 4-pixel separator, otherwise menus look cluttered
	235	*pwidth += 4;
	236
	237	// make sure that this item is at least as tall as the system menu height
	238	if ( *pheight < m_nMinHeight )
	239	*pheight = m_nMinHeight;
	240
	241	// remember height for use in OnDrawItem
	242	m_nHeight = *pheight;
	243
	244	return true;
	245	}
	246
	247	// draw the item
	248	bool wxOwnerDrawn::OnDrawItem(wxDC& dc,
	249	const wxRect& rc,
	250	wxODAction act,
	251	wxODStatus st)
	252	{
	253	// we do nothing on focus change
	254	if ( act == wxODFocusChanged )
	255	return true;
	256
	257
	258	// this flag determines whether or not an edge will
	259	// be drawn around the bitmap. In most "windows classic"
	260	// applications, a 1-pixel highlight edge is drawn around
	261	// the bitmap of an item when it is selected. However,
	262	// with the new "luna" theme, no edge is drawn around
	263	// the bitmap because the background is white (this applies
	264	// only to "non-XP style" menus w/ bitmaps --
	265	// see IE 6 menus for an example)
	266
	267	bool draw_bitmap_edge = true;
	268
	269	// set the colors
	270	// --------------
	271	DWORD colBack, colText;
	272	if ( st & wxODSelected )
	273	{
	274	colBack = GetSysColor(COLOR_HIGHLIGHT);
	275	if (!(st & wxODDisabled))
	276	{
	277	colText = GetSysColor(COLOR_HIGHLIGHTTEXT);
	278	}
	279	else
	280	{
	281	colText = GetSysColor(COLOR_GRAYTEXT);
	282	}
	283	}
	284	else
	285	{
	286	// fall back to default colors if none explicitly specified
	287	colBack = m_colBack.Ok() ? wxColourToPalRGB(m_colBack)
	288	: GetSysColor(COLOR_MENU);
	289	colText = m_colText.Ok() ? wxColourToPalRGB(m_colText)
	290	: GetSysColor(COLOR_MENUTEXT);
	291	}
	292
	293	if ( IsOwnerDrawn() )
	294	{
	295	// don't draw an edge around the bitmap, if background is white ...
	296	DWORD menu_bg_color = GetSysColor(COLOR_MENU);
	297	if ( ( GetRValue( menu_bg_color ) >= 0xf0 &&
	298	GetGValue( menu_bg_color ) >= 0xf0 &&
	299	GetBValue( menu_bg_color ) >= 0xf0 )
	300	)
	301	{
	302	draw_bitmap_edge = false;
	303	}
	304	}
	305	else // edge doesn't look well with default Windows drawing
	306	{
	307	draw_bitmap_edge = false;
	308	}
	309
	310
	311	HDC hdc = GetHdcOf(dc);
	312	COLORREF colOldText = ::SetTextColor(hdc, colText),
	313	colOldBack = ::SetBkColor(hdc, colBack);
	314
	315	// *2, as in wxSYS_EDGE_Y
	316	int margin = GetMarginWidth() + 2 * wxSystemSettings::GetMetric(wxSYS_EDGE_X);
	317
	318	// select the font and draw the text
	319	// ---------------------------------
	320
	321
	322	// determine where to draw and leave space for a check-mark.
	323	// + 1 pixel to separate the edge from the highlight rectangle
	324	int xText = rc.x + margin + 1;
	325
	326
	327	// using native API because it recognizes '&'
	328	if ( IsOwnerDrawn() )
	329	{
	330	int nPrevMode = SetBkMode(hdc, TRANSPARENT);
	331	AutoHBRUSH hbr(colBack);
	332	SelectInHDC selBrush(hdc, hbr);
	333
	334	RECT rectFill = { rc.GetLeft(), rc.GetTop(),
	335	rc.GetRight() + 1, rc.GetBottom() + 1 };
	336
	337	if ( (st & wxODSelected) && m_bmpChecked.Ok() && draw_bitmap_edge )
	338	{
	339	// only draw the highlight under the text, not under
	340	// the bitmap or checkmark
	341	rectFill.left = xText;
	342	}
	343
	344	FillRect(hdc, &rectFill, hbr);
	345
	346	// use default font if no font set
	347	wxFont fontToUse = GetFontToUse();
	348	SelectInHDC selFont(hdc, GetHfontOf(fontToUse));
	349
	350	wxString strMenuText = m_strName.BeforeFirst('\t');
	351
	352	xText += 3; // separate text from the highlight rectangle
	353
	354	SIZE sizeRect;
	355	::GetTextExtentPoint32(hdc, strMenuText.c_str(), strMenuText.length(), &sizeRect);
	356	::DrawState(hdc, NULL, NULL,
	357	(LPARAM)strMenuText.c_str(), strMenuText.length(),
	358	xText, rc.y + (int) ((rc.GetHeight()-sizeRect.cy)/2.0), // centre text vertically
	359	rc.GetWidth()-margin, sizeRect.cy,
	360	DST_PREFIXTEXT \|
	361	(((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0) \|
	362	(((st & wxODHidePrefix) && !wxMSWSystemMenuFontModule::ms_showCues) ? 512 : 0)); // 512 == DSS_HIDEPREFIX
	363
	364	// ::SetTextAlign(hdc, TA_RIGHT) doesn't work with DSS_DISABLED or DSS_MONO
	365	// as the last parameter in DrawState() (at least with Windows98). So we have
	366	// to take care of right alignment ourselves.
	367	if ( !m_strAccel.empty() )
	368	{
	369	int accel_width, accel_height;
	370	dc.GetTextExtent(m_strAccel, &accel_width, &accel_height);
	371	// right align accel string with right edge of menu ( offset by the
	372	// margin width )
	373	::DrawState(hdc, NULL, NULL,
	374	(LPARAM)m_strAccel.c_str(), m_strAccel.length(),
	375	rc.GetWidth()-16-accel_width, rc.y+(int) ((rc.GetHeight()-sizeRect.cy)/2.0),
	376	0, 0,
	377	DST_TEXT \|
	378	(((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0));
	379	}
	380
	381	(void)SetBkMode(hdc, nPrevMode);
	382	}
	383
	384
	385	// draw the bitmap
	386	// ---------------
	387	if ( IsCheckable() && !m_bmpChecked.Ok() )
	388	{
	389	if ( st & wxODChecked )
	390	{
	391	// what goes on: DrawFrameControl creates a b/w mask,
	392	// then we copy it to screen to have right colors
	393
	394	// first create a monochrome bitmap in a memory DC
	395	HDC hdcMem = CreateCompatibleDC(hdc);
	396	HBITMAP hbmpCheck = CreateBitmap(margin, m_nHeight, 1, 1, 0);
	397	SelectObject(hdcMem, hbmpCheck);
	398
	399	// then draw a check mark into it
	400	RECT rect = { 0, 0, margin, m_nHeight };
	401	if ( m_nHeight > 0 )
	402	{
	403	::DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
	404	}
	405
	406	// finally copy it to screen DC and clean up
	407	BitBlt(hdc, rc.x, rc.y, margin, m_nHeight, hdcMem, 0, 0, SRCCOPY);
	408
	409	DeleteDC(hdcMem);
	410	DeleteObject(hbmpCheck);
	411	}
	412	}
	413	else
	414	{
	415	wxBitmap bmp;
	416
	417	if ( st & wxODDisabled )
	418	{
	419	bmp = GetDisabledBitmap();
	420	}
	421
	422	if ( !bmp.Ok() )
	423	{
	424	// for not checkable bitmaps we should always use unchecked one because
	425	// their checked bitmap is not set
	426	bmp = GetBitmap(!IsCheckable() \|\| (st & wxODChecked));
	427	}
	428
	429	if ( bmp.Ok() )
	430	{
	431	wxMemoryDC dcMem(&dc);
	432	dcMem.SelectObject(bmp);
	433
	434	// center bitmap
	435	int nBmpWidth = bmp.GetWidth(),
	436	nBmpHeight = bmp.GetHeight();
	437
	438	// there should be enough space!
	439	wxASSERT((nBmpWidth <= rc.GetWidth()) && (nBmpHeight <= rc.GetHeight()));
	440
	441	int heightDiff = m_nHeight - nBmpHeight;
	442	dc.Blit(rc.x + (margin - nBmpWidth) / 2,
	443	rc.y + heightDiff / 2,
	444	nBmpWidth, nBmpHeight,
	445	&dcMem, 0, 0, wxCOPY, true /* use mask */);
	446
	447	if ( ( st & wxODSelected ) && !( st & wxODDisabled ) && draw_bitmap_edge )
	448	{
	449	RECT rectBmp = { rc.GetLeft(), rc.GetTop(),
	450	rc.GetLeft() + margin,
	451	rc.GetTop() + m_nHeight };
	452	SetBkColor(hdc, colBack);
	453
	454	DrawEdge(hdc, &rectBmp, BDR_RAISEDINNER, BF_RECT);
	455	}
	456	}
	457	}
	458
	459	::SetTextColor(hdc, colOldText);
	460	::SetBkColor(hdc, colOldBack);
	461
	462	return true;
	463	}
	464
	465
	466	#endif // wxUSE_OWNER_DRAWN