]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/button.cpp
No code changes, fixed some typos.
[wxWidgets.git] / src / msw / button.cpp
index 9ccd939cc16f17233e46eb52ed8e5e77c9962318..10bb135fb5c71fd46515a2427ccd58765483e146 100644 (file)
     #include "wx/dcscreen.h"
     #include "wx/dcclient.h"
     #include "wx/toplevel.h"
+    #include "wx/msw/wrapcctl.h"
+    #include "wx/msw/private.h"
+    #include "wx/msw/missing.h"
 #endif
 
+#include "wx/imaglist.h"
 #include "wx/stockitem.h"
-#include "wx/tokenzr.h"
-#include "wx/msw/private.h"
+#include "wx/msw/private/button.h"
+#include "wx/msw/private/dc.h"
+#include "wx/private/window.h"
+
+#if wxUSE_MARKUP
+    #include "wx/generic/private/markuptext.h"
+#endif // wxUSE_MARKUP
+
+using namespace wxMSWImpl;
 
 #if wxUSE_UXTHEME
     #include "wx/msw/uxtheme.h"
 
         #define TMT_CONTENTMARGINS 3602
     #endif
+
+    // provide the necessary declarations ourselves if they're missing from
+    // headers
+    #ifndef BCM_SETIMAGELIST
+        #define BCM_SETIMAGELIST    0x1602
+        #define BCM_SETTEXTMARGIN   0x1604
+
+        enum
+        {
+            BUTTON_IMAGELIST_ALIGN_LEFT,
+            BUTTON_IMAGELIST_ALIGN_RIGHT,
+            BUTTON_IMAGELIST_ALIGN_TOP,
+            BUTTON_IMAGELIST_ALIGN_BOTTOM
+        };
+
+        struct BUTTON_IMAGELIST
+        {
+            HIMAGELIST himl;
+            RECT margin;
+            UINT uAlign;
+        };
+    #endif
 #endif // wxUSE_UXTHEME
 
 #ifndef WM_THEMECHANGED
     #define ODS_NOFOCUSRECT     0x0200
 #endif
 
+#ifndef DT_HIDEPREFIX
+    #define DT_HIDEPREFIX       0x00100000
+#endif
+
+// set the value for BCM_SETSHIELD (for the UAC shield) if it's not defined in
+// the header
+#ifndef BCM_SETSHIELD
+    #define BCM_SETSHIELD       0x160c
+#endif
+
+#if wxUSE_UXTHEME
+extern wxWindowMSW *wxWindowBeingErased; // From src/msw/window.cpp
+#endif // wxUSE_UXTHEME
+
 // ----------------------------------------------------------------------------
-// macros
+// button image data
 // ----------------------------------------------------------------------------
 
-#if wxUSE_EXTENDED_RTTI
+// we use different data classes for owner drawn buttons and for themed XP ones
+
+class wxButtonImageData
+{
+public:
+    wxButtonImageData() { }
+    virtual ~wxButtonImageData() { }
+
+    virtual wxBitmap GetBitmap(wxButton::State which) const = 0;
+    virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which) = 0;
+
+    virtual wxSize GetBitmapMargins() const = 0;
+    virtual void SetBitmapMargins(wxCoord x, wxCoord y) = 0;
+
+    virtual wxDirection GetBitmapPosition() const = 0;
+    virtual void SetBitmapPosition(wxDirection dir) = 0;
+
+private:
+    wxDECLARE_NO_COPY_CLASS(wxButtonImageData);
+};
+
+namespace
+{
+
+// the gap between button edge and the interior area used by Windows for the
+// standard buttons
+const int OD_BUTTON_MARGIN = 4;
+
+class wxODButtonImageData : public wxButtonImageData
+{
+public:
+    wxODButtonImageData(wxButton *btn, const wxBitmap& bitmap)
+    {
+        SetBitmap(bitmap, wxButton::State_Normal);
+        SetBitmap(bitmap.ConvertToDisabled(), wxButton::State_Disabled);
+
+        m_dir = wxLEFT;
+
+        // we use margins when we have both bitmap and text, but when we have
+        // only the bitmap it should take up the entire button area
+        if ( btn->ShowsLabel() )
+        {
+            m_margin.x = btn->GetCharWidth();
+            m_margin.y = btn->GetCharHeight() / 2;
+        }
+    }
+
+    virtual wxBitmap GetBitmap(wxButton::State which) const
+    {
+        return m_bitmaps[which];
+    }
 
-WX_DEFINE_FLAGS( wxButtonStyle )
+    virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
+    {
+        m_bitmaps[which] = bitmap;
+    }
 
-wxBEGIN_FLAGS( wxButtonStyle )
-    // new style border flags, we put them first to
-    // use them for streaming out
-    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
-    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
-    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
-    wxFLAGS_MEMBER(wxBORDER_RAISED)
-    wxFLAGS_MEMBER(wxBORDER_STATIC)
-    wxFLAGS_MEMBER(wxBORDER_NONE)
+    virtual wxSize GetBitmapMargins() const
+    {
+        return m_margin;
+    }
 
-    // old style border flags
-    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
-    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
-    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
-    wxFLAGS_MEMBER(wxRAISED_BORDER)
-    wxFLAGS_MEMBER(wxSTATIC_BORDER)
-    wxFLAGS_MEMBER(wxBORDER)
+    virtual void SetBitmapMargins(wxCoord x, wxCoord y)
+    {
+        m_margin = wxSize(x, y);
+    }
 
-    // standard window styles
-    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
-    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
-    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
-    wxFLAGS_MEMBER(wxWANTS_CHARS)
-    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
-    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
-    wxFLAGS_MEMBER(wxVSCROLL)
-    wxFLAGS_MEMBER(wxHSCROLL)
+    virtual wxDirection GetBitmapPosition() const
+    {
+        return m_dir;
+    }
 
-    wxFLAGS_MEMBER(wxBU_LEFT)
-    wxFLAGS_MEMBER(wxBU_RIGHT)
-    wxFLAGS_MEMBER(wxBU_TOP)
-    wxFLAGS_MEMBER(wxBU_BOTTOM)
-    wxFLAGS_MEMBER(wxBU_EXACTFIT)
-wxEND_FLAGS( wxButtonStyle )
+    virtual void SetBitmapPosition(wxDirection dir)
+    {
+        m_dir = dir;
+    }
 
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxButton, wxControl,"wx/button.h")
+private:
+    // just store the values passed to us to be able to retrieve them later
+    // from the drawing code
+    wxBitmap m_bitmaps[wxButton::State_Max];
+    wxSize m_margin;
+    wxDirection m_dir;
 
-wxBEGIN_PROPERTIES_TABLE(wxButton)
-    wxEVENT_PROPERTY( Click , wxEVT_COMMAND_BUTTON_CLICKED , wxCommandEvent)
+    wxDECLARE_NO_COPY_CLASS(wxODButtonImageData);
+};
 
-    wxPROPERTY( Font , wxFont , SetFont , GetFont  , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-    wxPROPERTY( Label, wxString , SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+#if wxUSE_UXTHEME
 
-    wxPROPERTY_FLAGS( WindowStyle , wxButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+// somehow the margin is one pixel greater than the value returned by
+// GetThemeMargins() call
+const int XP_BUTTON_EXTRA_MARGIN = 1;
 
-wxEND_PROPERTIES_TABLE()
+class wxXPButtonImageData : public wxButtonImageData
+{
+public:
+    // we must be constructed with the size of our images as we need to create
+    // the image list
+    wxXPButtonImageData(wxButton *btn, const wxBitmap& bitmap)
+        : m_iml(bitmap.GetWidth(), bitmap.GetHeight(), true /* use mask */,
+                wxButton::State_Max),
+          m_hwndBtn(GetHwndOf(btn))
+    {
+        // initialize all bitmaps except for the disabled one to normal state
+        for ( int n = 0; n < wxButton::State_Max; n++ )
+        {
+            m_iml.Add(n == wxButton::State_Disabled ? bitmap.ConvertToDisabled()
+                                                    : bitmap);
+        }
 
-wxBEGIN_HANDLERS_TABLE(wxButton)
-wxEND_HANDLERS_TABLE()
+        m_data.himl = GetHimagelistOf(&m_iml);
 
-wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle  )
+        // no margins by default
+        m_data.margin.left =
+        m_data.margin.right =
+        m_data.margin.top =
+        m_data.margin.bottom = 0;
 
+        // use default alignment
+        m_data.uAlign = BUTTON_IMAGELIST_ALIGN_LEFT;
 
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
-#endif
+        UpdateImageInfo();
+    }
 
-// this macro tries to adjust the default button height to a reasonable value
-// using the char height as the base
-#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
+    virtual wxBitmap GetBitmap(wxButton::State which) const
+    {
+        return m_iml.GetBitmap(which);
+    }
+
+    virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
+    {
+        m_iml.Replace(which, bitmap);
+
+        UpdateImageInfo();
+    }
+
+    virtual wxSize GetBitmapMargins() const
+    {
+        return wxSize(m_data.margin.left, m_data.margin.top);
+    }
+
+    virtual void SetBitmapMargins(wxCoord x, wxCoord y)
+    {
+        RECT& margin = m_data.margin;
+        margin.left =
+        margin.right = x;
+        margin.top =
+        margin.bottom = y;
+
+        if ( !::SendMessage(m_hwndBtn, BCM_SETTEXTMARGIN, 0, (LPARAM)&margin) )
+        {
+            wxLogDebug("SendMessage(BCM_SETTEXTMARGIN) failed");
+        }
+    }
+
+    virtual wxDirection GetBitmapPosition() const
+    {
+        switch ( m_data.uAlign )
+        {
+            default:
+                wxFAIL_MSG( "invalid image alignment" );
+                // fall through
+
+            case BUTTON_IMAGELIST_ALIGN_LEFT:
+                return wxLEFT;
+
+            case BUTTON_IMAGELIST_ALIGN_RIGHT:
+                return wxRIGHT;
+
+            case BUTTON_IMAGELIST_ALIGN_TOP:
+                return wxTOP;
+
+            case BUTTON_IMAGELIST_ALIGN_BOTTOM:
+                return wxBOTTOM;
+        }
+    }
+
+    virtual void SetBitmapPosition(wxDirection dir)
+    {
+        UINT alignNew;
+        switch ( dir )
+        {
+            default:
+                wxFAIL_MSG( "invalid direction" );
+                // fall through
+
+            case wxLEFT:
+                alignNew = BUTTON_IMAGELIST_ALIGN_LEFT;
+                break;
+
+            case wxRIGHT:
+                alignNew = BUTTON_IMAGELIST_ALIGN_RIGHT;
+                break;
+
+            case wxTOP:
+                alignNew = BUTTON_IMAGELIST_ALIGN_TOP;
+                break;
+
+            case wxBOTTOM:
+                alignNew = BUTTON_IMAGELIST_ALIGN_BOTTOM;
+                break;
+        }
+
+        if ( alignNew != m_data.uAlign )
+        {
+            m_data.uAlign = alignNew;
+            UpdateImageInfo();
+        }
+    }
+
+private:
+    void UpdateImageInfo()
+    {
+        if ( !::SendMessage(m_hwndBtn, BCM_SETIMAGELIST, 0, (LPARAM)&m_data) )
+        {
+            wxLogDebug("SendMessage(BCM_SETIMAGELIST) failed");
+        }
+    }
+
+    // we store image list separately to be able to use convenient wxImageList
+    // methods instead of working with raw HIMAGELIST
+    wxImageList m_iml;
+
+    // store the rest of the data in BCM_SETIMAGELIST-friendly form
+    BUTTON_IMAGELIST m_data;
+
+    // the button we're associated with
+    const HWND m_hwndBtn;
+
+
+    wxDECLARE_NO_COPY_CLASS(wxXPButtonImageData);
+};
+
+#endif // wxUSE_UXTHEME
+
+} // anonymous namespace
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
 
 // ============================================================================
 // implementation
 // ============================================================================
 
+// ----------------------------------------------------------------------------
+// helper functions from wx/msw/private/button.h
+// ----------------------------------------------------------------------------
+
+void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
+{
+    // update BS_MULTILINE style depending on the new label (resetting it
+    // doesn't seem to do anything very useful but it shouldn't hurt and we do
+    // have to set it whenever the label becomes multi line as otherwise it
+    // wouldn't be shown correctly as we don't use BS_MULTILINE when creating
+    // the control unless it already has new lines in its label)
+    long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
+         styleNew;
+    if ( label.find(wxT('\n')) != wxString::npos )
+        styleNew = styleOld | BS_MULTILINE;
+    else
+        styleNew = styleOld & ~BS_MULTILINE;
+
+    if ( styleNew != styleOld )
+        ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
+}
+
+wxSize wxMSWButton::GetFittingSize(wxWindow *win,
+                                   const wxSize& sizeLabel,
+                                   int flags)
+{
+    // FIXME: this is pure guesswork, need to retrieve the real button margins
+    wxSize sizeBtn = sizeLabel;
+
+    sizeBtn.x += 3*win->GetCharWidth();
+    sizeBtn.y += win->GetCharHeight()/2;
+
+    // account for the shield UAC icon if we have it
+    if ( flags & Size_AuthNeeded )
+        sizeBtn.x += wxSystemSettings::GetMetric(wxSYS_SMALLICON_X);
+
+    return sizeBtn;
+}
+
+wxSize wxMSWButton::ComputeBestFittingSize(wxControl *btn, int flags)
+{
+    wxClientDC dc(btn);
+
+    wxSize sizeBtn;
+    dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
+
+    return GetFittingSize(btn, sizeBtn, flags);
+}
+
+wxSize wxMSWButton::IncreaseToStdSizeAndCache(wxControl *btn, const wxSize& size)
+{
+    wxSize sizeBtn(size);
+
+    // All buttons have at least the standard height and, unless the user
+    // explicitly wants them to be as small as possible and used wxBU_EXACTFIT
+    // style to indicate this, of at least the standard width too.
+    //
+    // Notice that we really want to make all buttons equally high, otherwise
+    // they look ugly and the existing code using wxBU_EXACTFIT only uses it to
+    // control width and not height.
+
+    // The 50x14 button size is documented in the "Recommended sizing and
+    // spacing" section of MSDN layout article.
+    //
+    // Note that we intentionally don't use GetDefaultSize() here, because
+    // it's inexact -- dialog units depend on this dialog's font.
+    const wxSize sizeDef = btn->ConvertDialogToPixels(wxSize(50, 14));
+    if ( !btn->HasFlag(wxBU_EXACTFIT) )
+    {
+        if ( sizeBtn.x < sizeDef.x )
+            sizeBtn.x = sizeDef.x;
+    }
+    if ( sizeBtn.y < sizeDef.y )
+        sizeBtn.y = sizeDef.y;
+
+    btn->CacheBestSize(sizeBtn);
+
+    return sizeBtn;
+}
+
 // ----------------------------------------------------------------------------
 // creation/destruction
 // ----------------------------------------------------------------------------
@@ -183,12 +486,9 @@ bool wxButton::Create(wxWindow *parent,
     //
     // NB: we do it here and not in MSWGetStyle() because we need the label
     //     value and the label is not set yet when MSWGetStyle() is called
-    if ( label.find(_T('\n')) != wxString::npos )
-    {
-        msStyle |= BS_MULTILINE;
-    }
+    msStyle |= wxMSWButton::GetMultilineStyle(label);
 
-    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+    return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle);
 }
 
 wxButton::~wxButton()
@@ -198,6 +498,11 @@ wxButton::~wxButton()
     {
         UnsetTmpDefault();
     }
+
+    delete m_imageData;
+#if wxUSE_MARKUP
+    delete m_markupText;
+#endif // wxUSE_MARKUP
 }
 
 // ----------------------------------------------------------------------------
@@ -213,7 +518,7 @@ WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
                       );
 
     // we must use WS_CLIPSIBLINGS with the buttons or they would draw over
-    // each other in any resizeable dialog which has more than one button in
+    // each other in any resizable dialog which has more than one button in
     // the bottom
     msStyle |= WS_CLIPSIBLINGS;
 
@@ -238,57 +543,128 @@ WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
 
 void wxButton::SetLabel(const wxString& label)
 {
-    // update BS_MULTILINE style depending on the new label (resetting it
-    // doesn't seem to do anything very useful but it shouldn't hurt and we do
-    // have to set it whenever the label becomes multi line as otherwise it
-    // wouldn't be shown correctly)
-    long styleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE),
-         styleNew;
-    if ( label.find(_T('\n')) != wxString::npos )
-        styleNew = styleOld | BS_MULTILINE;
-    else
-        styleNew = styleOld & ~BS_MULTILINE;
-
-    if ( styleNew != styleOld )
-        ::SetWindowLong(GetHwnd(), GWL_STYLE, styleNew);
+    wxMSWButton::UpdateMultilineStyle(GetHwnd(), label);
 
     wxButtonBase::SetLabel(label);
+
+#if wxUSE_MARKUP
+    // If we have a plain text label, we shouldn't be using markup any longer.
+    if ( m_markupText )
+    {
+        delete m_markupText;
+        m_markupText = NULL;
+
+        // Unfortunately we don't really know whether we can reset the button
+        // to be non-owner-drawn or not: if we had made it owner-drawn just
+        // because of a call to SetLabelMarkup(), we could, but not if there
+        // were [also] calls to Set{Fore,Back}groundColour(). If it's really a
+        // problem to have button remain owner-drawn forever just because it
+        // had markup label once, we should record the reason for our current
+        // owner-drawnness and check it here.
+    }
+#endif // wxUSE_MARKUP
 }
 
 // ----------------------------------------------------------------------------
 // size management including autosizing
 // ----------------------------------------------------------------------------
 
-wxSize wxButton::DoGetBestSize() const
+void wxButton::AdjustForBitmapSize(wxSize &size) const
 {
-    wxClientDC dc(wx_const_cast(wxButton *, this));
-    dc.SetFont(GetFont());
+    wxCHECK_RET( m_imageData, wxT("shouldn't be called if no image") );
+
+    // account for the bitmap size
+    const wxSize sizeBmp = m_imageData->GetBitmap(State_Normal).GetSize();
+    const wxDirection dirBmp = m_imageData->GetBitmapPosition();
+    if ( dirBmp == wxLEFT || dirBmp == wxRIGHT )
+    {
+        size.x += sizeBmp.x;
+        if ( sizeBmp.y > size.y )
+            size.y = sizeBmp.y;
+    }
+    else // bitmap on top/below the text
+    {
+        size.y += sizeBmp.y;
+        if ( sizeBmp.x > size.x )
+            size.x = sizeBmp.x;
+    }
+
+    // account for the user-specified margins
+    size += 2*m_imageData->GetBitmapMargins();
+
+    // and also for the margins we always add internally (unless we have no
+    // border at all in which case the button has exactly the same size as
+    // bitmap and so no margins should be used)
+    if ( !HasFlag(wxBORDER_NONE) )
+    {
+        int marginH = 0,
+            marginV = 0;
+#if wxUSE_UXTHEME
+        if ( wxUxThemeEngine::GetIfActive() )
+        {
+            wxUxThemeHandle theme(const_cast<wxButton *>(this), L"BUTTON");
+
+            MARGINS margins;
+            wxUxThemeEngine::Get()->GetThemeMargins(theme, NULL,
+                                                    BP_PUSHBUTTON,
+                                                    PBS_NORMAL,
+                                                    TMT_CONTENTMARGINS,
+                                                    NULL,
+                                                    &margins);
+
+            // XP doesn't draw themed buttons correctly when the client
+            // area is smaller than 8x8 - enforce this minimum size for
+            // small bitmaps
+            size.IncTo(wxSize(8, 8));
+
+            marginH = margins.cxLeftWidth + margins.cxRightWidth
+                        + 2*XP_BUTTON_EXTRA_MARGIN;
+            marginV = margins.cyTopHeight + margins.cyBottomHeight
+                        + 2*XP_BUTTON_EXTRA_MARGIN;
+        }
+        else
+#endif // wxUSE_UXTHEME
+        {
+            marginH =
+            marginV = OD_BUTTON_MARGIN;
+        }
 
-    wxCoord wBtn,
-            hBtn;
-    dc.GetMultiLineTextExtent(GetLabelText(), &wBtn, &hBtn);
+        size.IncBy(marginH, marginV);
+    }
+}
 
-    // add a margin -- the button is wider than just its label
-    wBtn += 3*GetCharWidth();
-    hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hBtn);
+wxSize wxButton::DoGetBestSize() const
+{
+    wxButton * const self = const_cast<wxButton *>(this);
 
-    // all buttons have at least the standard size unless the user explicitly
-    // wants them to be of smaller size and used wxBU_EXACTFIT style when
-    // creating the button
-    if ( !HasFlag(wxBU_EXACTFIT) )
+    wxSize size;
+
+    // Account for the text part if we have it.
+    if ( ShowsLabel() )
     {
-        wxSize sz = GetDefaultSize();
-        if (wBtn > sz.x)
-            sz.x = wBtn;
-        if (hBtn > sz.y)
-            sz.y = hBtn;
+        int flags = 0;
+        if ( GetAuthNeeded() )
+            flags |= wxMSWButton::Size_AuthNeeded;
 
-        return sz;
+#if wxUSE_MARKUP
+        if ( m_markupText )
+        {
+            wxClientDC dc(self);
+            size = wxMSWButton::GetFittingSize(self,
+                                               m_markupText->Measure(dc),
+                                               flags);
+        }
+        else // Normal plain text (but possibly multiline) label.
+#endif // wxUSE_MARKUP
+        {
+            size = wxMSWButton::ComputeBestFittingSize(self, flags);
+        }
     }
 
-    wxSize best(wBtn, hBtn);
-    CacheBestSize(best);
-    return best;
+    if ( m_imageData )
+        AdjustForBitmapSize(size);
+
+    return wxMSWButton::IncreaseToStdSizeAndCache(self, size);
 }
 
 /* static */
@@ -301,16 +677,20 @@ wxSize wxButtonBase::GetDefaultSize()
         wxScreenDC dc;
         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
-        // the size of a standard button in the dialog units is 50x14,
-        // translate this to pixels
-        // NB1: the multipliers come from the Windows convention
-        // NB2: the extra +1/+2 were needed to get the size be the same as the
-        //      size of the buttons in the standard dialog - I don't know how
-        //      this happens, but on my system this size is 75x23 in pixels and
-        //      23*8 isn't even divisible by 14... Would be nice to understand
-        //      why these constants are needed though!
-        s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4;
-        s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8;
+        // The size of a standard button in the dialog units is 50x14,
+        // translate this to pixels.
+        //
+        // Windows' computes dialog units using average character width over
+        // upper- and lower-case ASCII alphabet and not using the average
+        // character width metadata stored in the font; see
+        // http://support.microsoft.com/default.aspx/kb/145994 for detailed
+        // discussion.
+        //
+        // NB: wxMulDivInt32() is used, because it correctly rounds the result
+
+        const wxSize base = wxPrivate::GetAverageASCIILetterSize(dc);
+        s_sizeBtn.x = wxMulDivInt32(50, base.x, 4);
+        s_sizeBtn.y = wxMulDivInt32(14, base.y, 8);
     }
 
     return s_sizeBtn;
@@ -321,6 +701,14 @@ wxSize wxButtonBase::GetDefaultSize()
 // ----------------------------------------------------------------------------
 
 /*
+   The comment below and all this code is probably due to not using WM_NEXTDLGCTL
+   message when changing focus (but just SetFocus() which is not enough), see
+   http://blogs.msdn.com/oldnewthing/archive/2004/08/02/205624.aspx for the
+   full explanation.
+
+   TODO: Do use WM_NEXTDLGCTL and get rid of all this code.
+
+
    "Everything you ever wanted to know about the default buttons" or "Why do we
    have to do all this?"
 
@@ -387,10 +775,10 @@ static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
         win = parent;
     }
 
-    wxASSERT_MSG( win, _T("button without top level parent?") );
+    wxASSERT_MSG( win, wxT("button without top level parent?") );
 
     wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
-    wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") );
+    wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") );
 
     return tlw;
 }
@@ -442,7 +830,7 @@ wxButton::SetDefaultStyle(wxButton *btn, bool on)
             return;
 
         wxWindow * const tlw = wxGetTopLevelParent(btn);
-        wxCHECK_RET( tlw, _T("button without top level window?") );
+        wxCHECK_RET( tlw, wxT("button without top level window?") );
 
         ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L);
 
@@ -549,117 +937,276 @@ WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         // as the theme size might have changed
         InvalidateBestSize();
     }
-    else if ( wxUxThemeEngine::GetIfActive() )
+#endif // wxUSE_UXTHEME
+    // must use m_mouseInWindow here instead of IsMouseInWindow()
+    // since we need to know the first time the mouse enters the window
+    // and IsMouseInWindow() would return true in this case
+    else if ( (nMsg == WM_MOUSEMOVE && !m_mouseInWindow) ||
+                nMsg == WM_MOUSELEAVE )
     {
-        // we need to Refresh() if mouse has entered or left window
-        // so we can update the hot tracking state
-        // must use m_mouseInWindow here instead of IsMouseInWindow()
-        // since we need to know the first time the mouse enters the window
-        // and IsMouseInWindow() would return true in this case
-        if ( ( nMsg == WM_MOUSEMOVE && !m_mouseInWindow ) ||
-             nMsg == WM_MOUSELEAVE )
+        if (
+                IsEnabled() &&
+                (
+#if wxUSE_UXTHEME
+                wxUxThemeEngine::GetIfActive() ||
+#endif // wxUSE_UXTHEME
+                 (m_imageData && m_imageData->GetBitmap(State_Current).IsOk())
+                )
+           )
         {
             Refresh();
         }
     }
-#endif // wxUSE_UXTHEME
 
     // let the base class do all real processing
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 
 // ----------------------------------------------------------------------------
-// owner-drawn buttons support
+// authentication needed handling
 // ----------------------------------------------------------------------------
 
-// drawing helpers
+bool wxButton::DoGetAuthNeeded() const
+{
+    return m_authNeeded;
+}
+
+void wxButton::DoSetAuthNeeded(bool show)
+{
+    // show/hide UAC symbol on Windows Vista and later
+    if ( wxGetWinVersion() >= wxWinVersion_6 )
+    {
+        m_authNeeded = show;
+        ::SendMessage(GetHwnd(), BCM_SETSHIELD, 0, show);
+        InvalidateBestSize();
+    }
+}
 
-static void DrawButtonText(HDC hdc,
-                           RECT *pRect,
-                           const wxString& text,
-                           COLORREF col)
+// ----------------------------------------------------------------------------
+// button images
+// ----------------------------------------------------------------------------
+
+wxBitmap wxButton::DoGetBitmap(State which) const
 {
-    COLORREF colOld = SetTextColor(hdc, col);
-    int modeOld = SetBkMode(hdc, TRANSPARENT);
+    return m_imageData ? m_imageData->GetBitmap(which) : wxBitmap();
+}
 
-    if ( text.find(_T('\n')) != wxString::npos )
+void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
+{
+#if wxUSE_UXTHEME
+    wxXPButtonImageData *oldData = NULL;
+#endif // wxUSE_UXTHEME
+
+    // Check if we already had bitmaps of different size.
+    if ( m_imageData &&
+          bitmap.GetSize() != m_imageData->GetBitmap(State_Normal).GetSize() )
     {
-        // draw multiline label
+        wxASSERT_MSG( which == State_Normal,
+                      "Must set normal bitmap with the new size first" );
 
-        // first we need to compute its bounding rect
-        RECT rc;
-        ::CopyRect(&rc, pRect);
-        ::DrawText(hdc, text.wx_str(), text.length(), &rc,
-                   DT_CENTER | DT_CALCRECT);
+#if wxUSE_UXTHEME
+        if ( ShowsLabel() && wxUxThemeEngine::GetIfActive() )
+        {
+            // We can't change the size of the images stored in wxImageList
+            // in wxXPButtonImageData::m_iml so force recreating it below but
+            // keep the current data to copy its values into the new one.
+            oldData = static_cast<wxXPButtonImageData *>(m_imageData);
+            m_imageData = NULL;
+        }
+#endif // wxUSE_UXTHEME
+        //else: wxODButtonImageData doesn't require anything special
+    }
 
-        // now center this rect inside the entire button area
-        const LONG w = rc.right - rc.left;
-        const LONG h = rc.bottom - rc.top;
-        rc.left = (pRect->right - pRect->left)/2 - w/2;
-        rc.right = rc.left+w;
-        rc.top = (pRect->bottom - pRect->top)/2 - h/2;
-        rc.bottom = rc.top+h;
+    // allocate the image data when the first bitmap is set
+    if ( !m_imageData )
+    {
+#if wxUSE_UXTHEME
+        // using image list doesn't work correctly if we don't have any label
+        // (even if we use BUTTON_IMAGELIST_ALIGN_CENTER alignment and
+        // BS_BITMAP style), at least under Windows 2003 so use owner drawn
+        // strategy for bitmap-only buttons
+        if ( ShowsLabel() && wxUxThemeEngine::GetIfActive() )
+        {
+            m_imageData = new wxXPButtonImageData(this, bitmap);
+
+            if ( oldData )
+            {
+                // Preserve the old values in case the user changed them.
+                m_imageData->SetBitmapPosition(oldData->GetBitmapPosition());
 
-        ::DrawText(hdc, text.wx_str(), text.length(), &rc, DT_CENTER);
+                const wxSize oldMargins = oldData->GetBitmapMargins();
+                m_imageData->SetBitmapMargins(oldMargins.x, oldMargins.y);
+
+                // No need to preserve the bitmaps though as they were of wrong
+                // size anyhow.
+
+                delete oldData;
+            }
+        }
+        else
+#endif // wxUSE_UXTHEME
+        {
+            m_imageData = new wxODButtonImageData(this, bitmap);
+            MakeOwnerDrawn();
+        }
     }
-    else // single line label
+    else
     {
-        // Note: we must have DT_SINGLELINE for DT_VCENTER to work.
-        ::DrawText(hdc, text.wx_str(), text.length(), pRect,
-                   DT_SINGLELINE | DT_CENTER | DT_VCENTER);
+        m_imageData->SetBitmap(bitmap, which);
     }
 
-    SetBkMode(hdc, modeOld);
-    SetTextColor(hdc, colOld);
+    // it should be enough to only invalidate the best size when the normal
+    // bitmap changes as all bitmaps assigned to the button should be of the
+    // same size anyhow
+    if ( which == State_Normal )
+        InvalidateBestSize();
+
+    Refresh();
 }
 
-static void DrawRect(HDC hdc, const RECT& r)
+wxSize wxButton::DoGetBitmapMargins() const
 {
-    wxDrawLine(hdc, r.left, r.top, r.right, r.top);
-    wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
-    wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
-    wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
+    return m_imageData ? m_imageData->GetBitmapMargins() : wxSize(0, 0);
 }
 
-void wxButton::MakeOwnerDrawn()
+void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)
 {
-    long style = GetWindowLong(GetHwnd(), GWL_STYLE);
-    if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
-    {
-        // make it so
-        style |= BS_OWNERDRAW;
-        SetWindowLong(GetHwnd(), GWL_STYLE, style);
-    }
+    wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
+
+    m_imageData->SetBitmapMargins(x, y);
+    InvalidateBestSize();
 }
 
-bool wxButton::SetBackgroundColour(const wxColour &colour)
+void wxButton::DoSetBitmapPosition(wxDirection dir)
 {
-    if ( !wxControl::SetBackgroundColour(colour) )
-    {
-        // nothing to do
+    wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
+
+    m_imageData->SetBitmapPosition(dir);
+    InvalidateBestSize();
+}
+
+// ----------------------------------------------------------------------------
+// markup support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_MARKUP
+
+bool wxButton::DoSetLabelMarkup(const wxString& markup)
+{
+    if ( !wxButtonBase::DoSetLabelMarkup(markup) )
         return false;
-    }
 
-    MakeOwnerDrawn();
+    if ( !m_markupText )
+    {
+        m_markupText = new wxMarkupText(markup);
+        MakeOwnerDrawn();
+    }
+    else
+    {
+        // We are already owner-drawn so just update the text.
+        m_markupText->SetMarkup(markup);
+    }
 
     Refresh();
 
     return true;
 }
 
-bool wxButton::SetForegroundColour(const wxColour &colour)
+#endif // wxUSE_MARKUP
+
+// ----------------------------------------------------------------------------
+// owner-drawn buttons support
+// ----------------------------------------------------------------------------
+
+// drawing helpers
+namespace
 {
-    if ( !wxControl::SetForegroundColour(colour) )
+
+// return the button state using both the ODS_XXX flags specified in state
+// parameter and the current button state
+wxButton::State GetButtonState(wxButton *btn, UINT state)
+{
+    if ( state & ODS_DISABLED )
+        return wxButton::State_Disabled;
+
+    if ( state & ODS_SELECTED )
+        return wxButton::State_Pressed;
+
+    if ( btn->HasCapture() || btn->IsMouseInWindow() )
+        return wxButton::State_Current;
+
+    if ( state & ODS_FOCUS )
+        return wxButton::State_Focused;
+
+    return wxButton::State_Normal;
+}
+
+void DrawButtonText(HDC hdc,
+                    RECT *pRect,
+                    wxButton *btn,
+                    int flags)
+{
+    const wxString text = btn->GetLabel();
+
+    if ( text.find(wxT('\n')) != wxString::npos )
     {
-        // nothing to do
-        return false;
+        // draw multiline label
+
+        // center text horizontally in any case
+        flags |= DT_CENTER;
+
+        // first we need to compute its bounding rect
+        RECT rc;
+        ::CopyRect(&rc, pRect);
+        ::DrawText(hdc, text.wx_str(), text.length(), &rc,
+                   DT_CENTER | DT_CALCRECT);
+
+        // now center this rect inside the entire button area
+        const LONG w = rc.right - rc.left;
+        const LONG h = rc.bottom - rc.top;
+        rc.left = (pRect->right - pRect->left)/2 - w/2;
+        rc.right = rc.left+w;
+        rc.top = (pRect->bottom - pRect->top)/2 - h/2;
+        rc.bottom = rc.top+h;
+
+        ::DrawText(hdc, text.wx_str(), text.length(), &rc, flags);
     }
+    else // single line label
+    {
+        // translate wx button flags to alignment flags for DrawText()
+        if ( btn->HasFlag(wxBU_RIGHT) )
+        {
+            flags |= DT_RIGHT;
+        }
+        else if ( !btn->HasFlag(wxBU_LEFT) )
+        {
+            flags |= DT_CENTER;
+        }
+        //else: DT_LEFT is the default anyhow (and its value is 0 too)
 
-    MakeOwnerDrawn();
+        if ( btn->HasFlag(wxBU_BOTTOM) )
+        {
+            flags |= DT_BOTTOM;
+        }
+        else if ( !btn->HasFlag(wxBU_TOP) )
+        {
+            flags |= DT_VCENTER;
+        }
+        //else: as above, DT_TOP is the default
 
-    Refresh();
+        // notice that we must have DT_SINGLELINE for vertical alignment flags
+        // to work
+        ::DrawText(hdc, text.wx_str(), text.length(), pRect,
+                   flags | DT_SINGLELINE );
+    }
+}
 
-    return true;
+void DrawRect(HDC hdc, const RECT& r)
+{
+    wxDrawLine(hdc, r.left, r.top, r.right, r.top);
+    wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
+    wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
+    wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
 }
 
 /*
@@ -697,19 +1244,18 @@ bool wxButton::SetForegroundColour(const wxColour &colour)
    BGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 */
-
-static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
-                            bool selected, bool pushed)
+void DrawButtonFrame(HDC hdc, RECT& rectBtn,
+                     bool selected, bool pushed)
 {
     RECT r;
     CopyRect(&r, &rectBtn);
 
-    HPEN hpenBlack   = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)),
-         hpenGrey    = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)),
-         hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)),
-         hpenWhite   = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT));
+    AutoHPEN hpenBlack(GetSysColor(COLOR_3DDKSHADOW)),
+             hpenGrey(GetSysColor(COLOR_3DSHADOW)),
+             hpenLightGr(GetSysColor(COLOR_3DLIGHT)),
+             hpenWhite(GetSysColor(COLOR_3DHILIGHT));
 
-    HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack);
+    SelectInHDC selectPen(hdc, hpenBlack);
 
     r.right--;
     r.bottom--;
@@ -748,150 +1294,274 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
         wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
     }
 
-    (void)SelectObject(hdc, hpenOld);
-    DeleteObject(hpenWhite);
-    DeleteObject(hpenLightGr);
-    DeleteObject(hpenGrey);
-    DeleteObject(hpenBlack);
+    InflateRect(&rectBtn, -OD_BUTTON_MARGIN, -OD_BUTTON_MARGIN);
 }
 
 #if wxUSE_UXTHEME
-static
-void MSWDrawXPBackground(wxButton *button, WXDRAWITEMSTRUCT *wxdis)
+void DrawXPBackground(wxButton *button, HDC hdc, RECT& rectBtn, UINT state)
 {
-    LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
-    HDC hdc = lpDIS->hDC;
-    UINT state = lpDIS->itemState;
-    RECT rectBtn;
-    CopyRect(&rectBtn, &lpDIS->rcItem);
-
     wxUxThemeHandle theme(button, L"BUTTON");
-    int iState;
 
-    if ( state & ODS_SELECTED )
-    {
-        iState = PBS_PRESSED;
-    }
-    else if ( button->HasCapture() || button->IsMouseInWindow() )
+    // this array is indexed by wxButton::State values and so must be kept in
+    // sync with it
+    static const int uxStates[] =
     {
-        iState = PBS_HOT;
-    }
-    else if ( state & ODS_FOCUS )
-    {
-        iState = PBS_DEFAULTED;
-    }
-    else if ( state & ODS_DISABLED )
-    {
-        iState = PBS_DISABLED;
-    }
-    else
-    {
-        iState = PBS_NORMAL;
-    }
+        PBS_NORMAL, PBS_HOT, PBS_PRESSED, PBS_DISABLED, PBS_DEFAULTED
+    };
+
+    int iState = uxStates[GetButtonState(button, state)];
+
+    wxUxThemeEngine * const engine = wxUxThemeEngine::Get();
 
     // draw parent background if needed
-    if ( wxUxThemeEngine::Get()->IsThemeBackgroundPartiallyTransparent(theme,
-                                                                       BP_PUSHBUTTON,
-                                                                       iState) )
+    if ( engine->IsThemeBackgroundPartiallyTransparent
+                 (
+                    theme,
+                    BP_PUSHBUTTON,
+                    iState
+                 ) )
     {
-        wxUxThemeEngine::Get()->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
+        // Set this button as the one whose background is being erased: this
+        // allows our WM_ERASEBKGND handler used by DrawThemeParentBackground()
+        // to correctly align the background brush with this window instead of
+        // the parent window to which WM_ERASEBKGND is sent. Notice that this
+        // doesn't work with custom user-defined EVT_ERASE_BACKGROUND handlers
+        // as they won't be aligned but unfortunately all the attempts to fix
+        // it by shifting DC origin before calling DrawThemeParentBackground()
+        // failed to work so we at least do this, even though this is far from
+        // being the perfect solution.
+        wxWindowBeingErased = button;
+
+        engine->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
+
+        wxWindowBeingErased = NULL;
     }
 
     // draw background
-    wxUxThemeEngine::Get()->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState,
-                                                &rectBtn, NULL);
+    engine->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState,
+                                &rectBtn, NULL);
 
     // calculate content area margins
     MARGINS margins;
-    wxUxThemeEngine::Get()->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState,
-                                            TMT_CONTENTMARGINS, &rectBtn, &margins);
-    RECT rectClient;
-    ::CopyRect(&rectClient, &rectBtn);
-    ::InflateRect(&rectClient, -margins.cxLeftWidth, -margins.cyTopHeight);
-
-    // if focused and !nofocus rect
-    if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
-    {
-        DrawFocusRect(hdc, &rectClient);
-    }
+    engine->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState,
+                            TMT_CONTENTMARGINS, &rectBtn, &margins);
+    ::InflateRect(&rectBtn, -margins.cxLeftWidth, -margins.cyTopHeight);
+    ::InflateRect(&rectBtn, -XP_BUTTON_EXTRA_MARGIN, -XP_BUTTON_EXTRA_MARGIN);
 
     if ( button->UseBgCol() )
     {
         COLORREF colBg = wxColourToRGB(button->GetBackgroundColour());
-        HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
+        AutoHBRUSH hbrushBackground(colBg);
 
         // don't overwrite the focus rect
+        RECT rectClient;
+        ::CopyRect(&rectClient, &rectBtn);
         ::InflateRect(&rectClient, -1, -1);
         FillRect(hdc, &rectClient, hbrushBackground);
-        ::DeleteObject(hbrushBackground);
     }
 }
 #endif // wxUSE_UXTHEME
 
+} // anonymous namespace
+
+// ----------------------------------------------------------------------------
+// owner drawn buttons support
+// ----------------------------------------------------------------------------
+
+void wxButton::MakeOwnerDrawn()
+{
+    long style = GetWindowLong(GetHwnd(), GWL_STYLE);
+    if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
+    {
+        // make it so
+        style |= BS_OWNERDRAW;
+        SetWindowLong(GetHwnd(), GWL_STYLE, style);
+    }
+}
+
+bool wxButton::SetBackgroundColour(const wxColour &colour)
+{
+    if ( !wxControl::SetBackgroundColour(colour) )
+    {
+        // nothing to do
+        return false;
+    }
+
+    MakeOwnerDrawn();
+
+    Refresh();
+
+    return true;
+}
+
+bool wxButton::SetForegroundColour(const wxColour &colour)
+{
+    if ( !wxControl::SetForegroundColour(colour) )
+    {
+        // nothing to do
+        return false;
+    }
+
+    MakeOwnerDrawn();
+
+    Refresh();
+
+    return true;
+}
+
 bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
 {
     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
     HDC hdc = lpDIS->hDC;
+
     UINT state = lpDIS->itemState;
+    bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
+
     RECT rectBtn;
     CopyRect(&rectBtn, &lpDIS->rcItem);
 
-#if wxUSE_UXTHEME
-    if ( wxUxThemeEngine::GetIfActive() )
+    // draw the button background
+    if ( !HasFlag(wxBORDER_NONE) )
     {
-        MSWDrawXPBackground(this, wxdis);
-    }
-    else
+#if wxUSE_UXTHEME
+        if ( wxUxThemeEngine::GetIfActive() )
+        {
+            DrawXPBackground(this, hdc, rectBtn, state);
+        }
+        else
 #endif // wxUSE_UXTHEME
-    {
-        COLORREF colBg = wxColourToRGB(GetBackgroundColour());
+        {
+            COLORREF colBg = wxColourToRGB(GetBackgroundColour());
 
-        // first, draw the background
-        HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
-        FillRect(hdc, &rectBtn, hbrushBackground);
-        ::DeleteObject(hbrushBackground);
+            // first, draw the background
+            AutoHBRUSH hbrushBackground(colBg);
+            FillRect(hdc, &rectBtn, hbrushBackground);
 
-        // draw the border for the current state
-        bool selected = (state & ODS_SELECTED) != 0;
-        if ( !selected )
-        {
-            wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
-            if ( tlw )
+            // draw the border for the current state
+            bool selected = (state & ODS_SELECTED) != 0;
+            if ( !selected )
             {
-                selected = tlw->GetDefaultItem() == this;
+                wxTopLevelWindow *
+                    tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+                if ( tlw )
+                {
+                    selected = tlw->GetDefaultItem() == this;
+                }
             }
-        }
-        bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
 
-        DrawButtonFrame(hdc, rectBtn, selected, pushed);
+            DrawButtonFrame(hdc, rectBtn, selected, pushed);
+        }
 
-        // if focused and !nofocus rect
+        // draw the focus rectangle if we need it
         if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
         {
-            RECT rectFocus;
-            CopyRect(&rectFocus, &rectBtn);
+            DrawFocusRect(hdc, &rectBtn);
 
-            // I don't know where does this constant come from, but this is how
-            // Windows draws them
-            InflateRect(&rectFocus, -4, -4);
-
-            DrawFocusRect(hdc, &rectFocus);
+#if wxUSE_UXTHEME
+            if ( !wxUxThemeEngine::GetIfActive() )
+#endif // wxUSE_UXTHEME
+            {
+                if ( pushed )
+                {
+                    // the label is shifted by 1 pixel to create "pushed" effect
+                    OffsetRect(&rectBtn, 1, 1);
+                }
+            }
         }
+    }
+
+
+    // draw the image, if any
+    if ( m_imageData )
+    {
+        wxBitmap bmp = m_imageData->GetBitmap(GetButtonState(this, state));
+        if ( !bmp.IsOk() )
+            bmp = m_imageData->GetBitmap(State_Normal);
 
-        if ( pushed )
+        const wxSize sizeBmp = bmp.GetSize();
+        const wxSize margin = m_imageData->GetBitmapMargins();
+        const wxSize sizeBmpWithMargins(sizeBmp + 2*margin);
+        wxRect rectButton(wxRectFromRECT(rectBtn));
+
+        // for simplicity, we start with centred rectangle and then move it to
+        // the appropriate edge
+        wxRect rectBitmap = wxRect(sizeBmp).CentreIn(rectButton);
+
+        // move bitmap only if we have a label, otherwise keep it centered
+        if ( ShowsLabel() )
         {
-            // the label is shifted by 1 pixel to create "pushed" effect
-            OffsetRect(&rectBtn, 1, 1);
+            switch ( m_imageData->GetBitmapPosition() )
+            {
+                default:
+                    wxFAIL_MSG( "invalid direction" );
+                    // fall through
+
+                case wxLEFT:
+                    rectBitmap.x = rectButton.x + margin.x;
+                    rectButton.x += sizeBmpWithMargins.x;
+                    rectButton.width -= sizeBmpWithMargins.x;
+                    break;
+
+                case wxRIGHT:
+                    rectBitmap.x = rectButton.GetRight() - sizeBmp.x - margin.x;
+                    rectButton.width -= sizeBmpWithMargins.x;
+                    break;
+
+                case wxTOP:
+                    rectBitmap.y = rectButton.y + margin.y;
+                    rectButton.y += sizeBmpWithMargins.y;
+                    rectButton.height -= sizeBmpWithMargins.y;
+                    break;
+
+                case wxBOTTOM:
+                    rectBitmap.y = rectButton.GetBottom() - sizeBmp.y - margin.y;
+                    rectButton.height -= sizeBmpWithMargins.y;
+                    break;
+            }
         }
+
+        wxDCTemp dst((WXHDC)hdc);
+        dst.DrawBitmap(bmp, rectBitmap.GetPosition(), true);
+
+        wxCopyRectToRECT(rectButton, rectBtn);
     }
 
-    COLORREF colFg = wxColourToRGB(GetForegroundColour());
-    if ( state & ODS_DISABLED ) colFg = GetSysColor(COLOR_GRAYTEXT) ;
-    wxString label = GetLabel();
-    if ( state & ODS_NOACCEL ) label = GetLabelText() ;
-    DrawButtonText(hdc, &rectBtn, label, colFg);
+
+    // finally draw the label
+    if ( ShowsLabel() )
+    {
+        COLORREF colFg = state & ODS_DISABLED
+                            ? ::GetSysColor(COLOR_GRAYTEXT)
+                            : wxColourToRGB(GetForegroundColour());
+
+        wxTextColoursChanger changeFg(hdc, colFg, CLR_INVALID);
+        wxBkModeChanger changeBkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
+
+#if wxUSE_MARKUP
+        if ( m_markupText )
+        {
+            wxDCTemp dc((WXHDC)hdc);
+            dc.SetTextForeground(wxColour(colFg));
+            dc.SetFont(GetFont());
+
+            m_markupText->Render(dc, wxRectFromRECT(rectBtn),
+                                 state & ODS_NOACCEL
+                                    ? wxMarkupText::Render_Default
+                                    : wxMarkupText::Render_ShowAccels);
+        }
+        else // Plain text label
+#endif // wxUSE_MARKUP
+        {
+            // notice that DT_HIDEPREFIX doesn't work on old (pre-Windows 2000)
+            // systems but by happy coincidence ODS_NOACCEL is not used under
+            // them neither so DT_HIDEPREFIX should never be used there
+            DrawButtonText(hdc, &rectBtn, this,
+                           state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
+        }
+    }
 
     return true;
 }
 
 #endif // wxUSE_BUTTON
+