Add wxDataViewRendererBase::PrepareForItem() helper.

[wxWidgets.git] / src / msw / button.cpp

diff --git a/src/msw/button.cpp b/src/msw/button.cpp
index ead9214d2cd451282b93066b7709a45fc98a0b1c..9d7fa154a70b631f185d4f09d2c0f0928b7f27ea 100644 (file)
--- a/src/msw/button.cpp
+++ b/src/msw/button.cpp
@@ -37,12 +37,17 @@
     #include "wx/dcscreen.h"
     #include "wx/dcclient.h"
     #include "wx/toplevel.h"
     #include "wx/dcscreen.h"
     #include "wx/dcclient.h"
     #include "wx/toplevel.h"

-    #include "wx/imaglist.h"

 #endif
 
 #endif
 

+#include "wx/imaglist.h"

 #include "wx/stockitem.h"
 #include "wx/msw/private.h"
 #include "wx/msw/private/button.h"
 #include "wx/stockitem.h"
 #include "wx/msw/private.h"
 #include "wx/msw/private/button.h"

+#include "wx/msw/private/dc.h"
+#include "wx/private/window.h"
+#include "wx/msw/missing.h"
+
+using namespace wxMSWImpl;

 
 #if wxUSE_UXTHEME
     #include "wx/msw/uxtheme.h"
 
 #if wxUSE_UXTHEME
     #include "wx/msw/uxtheme.h"


@@ -99,6 +104,12 @@
     #define DT_HIDEPREFIX       0x00100000
 #endif
 
     #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
+

 // ----------------------------------------------------------------------------
 // button image data
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // button image data
 // ----------------------------------------------------------------------------


@@ -109,6 +120,7 @@ class wxButtonImageData
 {
 public:
     wxButtonImageData() { }
 {
 public:
     wxButtonImageData() { }

+    virtual ~wxButtonImageData() { }

 
     virtual wxBitmap GetBitmap(wxButton::State which) const = 0;
     virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which) = 0;
 
     virtual wxBitmap GetBitmap(wxButton::State which) const = 0;
     virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which) = 0;


@@ -116,7 +128,7 @@ public:
     virtual wxSize GetBitmapMargins() const = 0;
     virtual void SetBitmapMargins(wxCoord x, wxCoord y) = 0;
 
     virtual wxSize GetBitmapMargins() const = 0;
     virtual void SetBitmapMargins(wxCoord x, wxCoord y) = 0;
 

-    virtual bool IsHorizontal() const = 0;
+    virtual wxDirection GetBitmapPosition() const = 0;

     virtual void SetBitmapPosition(wxDirection dir) = 0;
 
 private:
     virtual void SetBitmapPosition(wxDirection dir) = 0;
 
 private:


@@ -126,10 +138,27 @@ private:
 namespace
 {
 
 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:
 class wxODButtonImageData : public wxButtonImageData
 {
 public:

-    wxODButtonImageData() { m_dir = wxLEFT; }
+    wxODButtonImageData(wxButton *btn, const wxBitmap& bitmap)
+    {
+        SetBitmap(bitmap, wxButton::State_Normal);
+
+        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
     {
 
     virtual wxBitmap GetBitmap(wxButton::State which) const
     {


@@ -151,9 +180,9 @@ public:
         m_margin = wxSize(x, y);
     }
 
         m_margin = wxSize(x, y);
     }
 

-    virtual bool IsHorizontal() const
+    virtual wxDirection GetBitmapPosition() const

     {
     {

-        return m_dir == wxLEFT || m_dir == wxRIGHT;
+        return m_dir;

     }
 
     virtual void SetBitmapPosition(wxDirection dir)
     }
 
     virtual void SetBitmapPosition(wxDirection dir)


@@ -173,15 +202,26 @@ private:
 
 #if wxUSE_UXTHEME
 
 
 #if wxUSE_UXTHEME
 

+// somehow the margin is one pixel greater than the value returned by
+// GetThemeMargins() call
+const int XP_BUTTON_EXTRA_MARGIN = 1;
+

 class wxXPButtonImageData : public wxButtonImageData
 {
 public:
     // we must be constructed with the size of our images as we need to create
     // the image list
 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 wxSize& size)
-        : m_iml(size.x, size.y, true /* use mask */, wxButton::State_Max),
+    wxXPButtonImageData(wxButton *btn, const wxBitmap& bitmap)
+        : m_iml(bitmap.GetWidth(), bitmap.GetHeight(), true /* use mask */,
+                wxButton::State_Max),

           m_hwndBtn(GetHwndOf(btn))
     {
           m_hwndBtn(GetHwndOf(btn))
     {

+        // initialize all bitmaps to normal state
+        for ( int n = 0; n < wxButton::State_Max; n++ )
+        {
+            m_iml.Add(bitmap);
+        }
+

         m_data.himl = GetHimagelistOf(&m_iml);
 
         // use default margins
         m_data.himl = GetHimagelistOf(&m_iml);
 
         // use default margins


@@ -192,6 +232,8 @@ public:
 
         // and default alignment
         m_data.uAlign = BUTTON_IMAGELIST_ALIGN_LEFT;
 
         // and default alignment
         m_data.uAlign = BUTTON_IMAGELIST_ALIGN_LEFT;

+
+        UpdateImageInfo();

     }
 
     virtual wxBitmap GetBitmap(wxButton::State which) const
     }
 
     virtual wxBitmap GetBitmap(wxButton::State which) const


@@ -201,22 +243,7 @@ public:
 
     virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
     {
 
     virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
     {

-        const int imagesToAdd = which - m_iml.GetImageCount();
-        if ( imagesToAdd >= 0 )
-        {
-            if ( imagesToAdd > 0 )
-            {
-                const wxBitmap bmpNormal = GetBitmap(wxButton::State_Normal);
-                for ( int n = 0; n < imagesToAdd; n++ )
-                    m_iml.Add(bmpNormal);
-            }
-
-            m_iml.Add(bitmap);
-        }
-        else // we already have this bitmap
-        {
-            m_iml.Replace(which, bitmap);
-        }
+        m_iml.Replace(which, bitmap);

 
         UpdateImageInfo();
     }
 
         UpdateImageInfo();
     }


@@ -240,10 +267,26 @@ public:
         }
     }
 
         }
     }
 

-    virtual bool IsHorizontal() const
+    virtual wxDirection GetBitmapPosition() const

     {
     {

-        return m_data.uAlign == BUTTON_IMAGELIST_ALIGN_LEFT ||
-                    m_data.uAlign == BUTTON_IMAGELIST_ALIGN_RIGHT;
+        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)
     }
 
     virtual void SetBitmapPosition(wxDirection dir)


@@ -388,7 +431,7 @@ void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
     // the control unless it already has new lines in its label)
     long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
          styleNew;
     // the control unless it already has new lines in its label)
     long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
          styleNew;

-    if ( label.find(_T('\n')) != wxString::npos )
+    if ( label.find(wxT('\n')) != wxString::npos )

         styleNew = styleOld | BS_MULTILINE;
     else
         styleNew = styleOld & ~BS_MULTILINE;
         styleNew = styleOld | BS_MULTILINE;
     else
         styleNew = styleOld & ~BS_MULTILINE;


@@ -397,7 +440,9 @@ void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
         ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
 }
 
         ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
 }
 

-wxSize wxMSWButton::GetFittingSize(wxWindow *win, const wxSize& sizeLabel)
+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;
 {
     // FIXME: this is pure guesswork, need to retrieve the real button margins
     wxSize sizeBtn = sizeLabel;


@@ -405,24 +450,31 @@ wxSize wxMSWButton::GetFittingSize(wxWindow *win, const wxSize& sizeLabel)
     sizeBtn.x += 3*win->GetCharWidth();
     sizeBtn.y = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(sizeLabel.y)/10;
 
     sizeBtn.x += 3*win->GetCharWidth();
     sizeBtn.y = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(sizeLabel.y)/10;
 

+    // account for the shield UAC icon if we have it
+    if ( flags & Size_AuthNeeded )
+        sizeBtn.x += wxSystemSettings::GetMetric(wxSYS_SMALLICON_X);
+

     return sizeBtn;
 }
 
     return sizeBtn;
 }
 

-wxSize wxMSWButton::ComputeBestSize(wxControl *btn)
+wxSize wxMSWButton::ComputeBestSize(wxControl *btn, int flags)

 {
     wxClientDC dc(btn);
 
     wxSize sizeBtn;
     dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
 
 {
     wxClientDC dc(btn);
 
     wxSize sizeBtn;
     dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
 

-    sizeBtn = GetFittingSize(btn, sizeBtn);
+    sizeBtn = GetFittingSize(btn, sizeBtn, flags);

 
     // 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 ( !btn->HasFlag(wxBU_EXACTFIT) )
     {
 
     // 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 ( !btn->HasFlag(wxBU_EXACTFIT) )
     {

-        wxSize sizeDef = wxButton::GetDefaultSize();
+        // The size of a standard button in the dialog units is 50x14, use it.
+        // Note that we intentionally don't use GetDefaultSize() here, because
+        // it's inexact -- dialog units depend on this dialog's font.
+        wxSize sizeDef = btn->ConvertDialogToPixels(wxSize(50, 14));

         if ( sizeBtn.x < sizeDef.x )
             sizeBtn.x = sizeDef.x;
         if ( sizeBtn.y < sizeDef.y )
         if ( sizeBtn.x < sizeDef.x )
             sizeBtn.x = sizeDef.x;
         if ( sizeBtn.y < sizeDef.y )


@@ -447,6 +499,8 @@ bool wxButton::Create(wxWindow *parent,
                       const wxValidator& validator,
                       const wxString& name)
 {
                       const wxValidator& validator,
                       const wxString& name)
 {

+    m_authNeeded = false;
+

     wxString label(lbl);
     if (label.empty() && wxIsStockID(id))
     {
     wxString label(lbl);
     if (label.empty() && wxIsStockID(id))
     {


@@ -474,7 +528,7 @@ bool wxButton::Create(wxWindow *parent,
     //     value and the label is not set yet when MSWGetStyle() is called
     msStyle |= wxMSWButton::GetMultilineStyle(label);
 
     //     value and the label is not set yet when MSWGetStyle() is called
     msStyle |= wxMSWButton::GetMultilineStyle(label);
 

-    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+    return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle);

 }
 
 wxButton::~wxButton()
 }
 
 wxButton::~wxButton()


@@ -535,26 +589,90 @@ void wxButton::SetLabel(const wxString& label)
 // size management including autosizing
 // ----------------------------------------------------------------------------
 
 // size management including autosizing
 // ----------------------------------------------------------------------------
 

-wxSize wxButton::DoGetBestSize() const
+void wxButton::AdjustForBitmapSize(wxSize &size) const

 {
 {

-    wxSize size = wxMSWButton::ComputeBestSize(const_cast<wxButton *>(this));
-    if ( m_imageData )
+    if ( !m_imageData )
+        return;
+
+    // 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 )

     {
     {

-        const wxSize sizeBmp = m_imageData->GetBitmap(State_Normal).GetSize();
-        if ( m_imageData->IsHorizontal() )
+        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() )

         {
         {

-            size.x += sizeBmp.x;
-            if ( sizeBmp.y > size.y )
-                size.y = sizeBmp.y;
+            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 // bitmap on top/below the text
+        else
+#endif // wxUSE_UXTHEME

         {
         {

-            size.y += sizeBmp.y;
-            if ( sizeBmp.x > size.x )
-                size.x = sizeBmp.x;
+            marginH =
+            marginV = OD_BUTTON_MARGIN;

         }
 
         }
 

-        size += 2*m_imageData->GetBitmapMargins();
+        size.IncBy(marginH, marginV);
+    }
+}
+
+wxSize wxButton::DoGetBestSize() const
+{
+    wxSize size;
+
+    // account for the text part if we have it or if we don't have any image at
+    // all (buttons initially created with empty label should still have a non
+    // zero size)
+    if ( ShowsLabel() || !m_imageData )
+    {
+        int flags = 0;
+        if ( GetAuthNeeded() )
+            flags |= wxMSWButton::Size_AuthNeeded;
+
+        size = wxMSWButton::ComputeBestSize(const_cast<wxButton *>(this), flags);
+    }
+
+    if ( m_imageData )
+    {
+        AdjustForBitmapSize(size);

 
         CacheBestSize(size);
     }
 
         CacheBestSize(size);
     }


@@ -572,16 +690,20 @@ wxSize wxButtonBase::GetDefaultSize()
         wxScreenDC dc;
         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
         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;
     }
 
     return s_sizeBtn;


@@ -592,6 +714,14 @@ 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?"
 
    "Everything you ever wanted to know about the default buttons" or "Why do we
    have to do all this?"
 


@@ -658,10 +788,10 @@ static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
         win = parent;
     }
 
         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);
 
     wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);

-    wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") );
+    wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") );

 
     return tlw;
 }
 
     return tlw;
 }


@@ -713,7 +843,7 @@ wxButton::SetDefaultStyle(wxButton *btn, bool on)
             return;
 
         wxWindow * const tlw = wxGetTopLevelParent(btn);
             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);
 
 
         ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L);
 


@@ -820,25 +950,51 @@ WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         // as the theme size might have changed
         InvalidateBestSize();
     }
         // 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();
         }
     }
         {
             Refresh();
         }
     }

-#endif // wxUSE_UXTHEME

 
     // let the base class do all real processing
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 
 
     // let the base class do all real processing
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 

+// ----------------------------------------------------------------------------
+// authentication needed handling
+// ----------------------------------------------------------------------------
+
+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();
+    }
+}
+

 // ----------------------------------------------------------------------------
 // button images
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // button images
 // ----------------------------------------------------------------------------


@@ -854,18 +1010,38 @@ void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
     if ( !m_imageData )
     {
 #if wxUSE_UXTHEME
     if ( !m_imageData )
     {
 #if wxUSE_UXTHEME

-        if ( wxUxThemeEngine::GetIfActive() )
-            m_imageData = new wxXPButtonImageData(this, bitmap.GetSize());
+        // 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);
+        }

         else
 #endif // wxUSE_UXTHEME
         else
 #endif // wxUSE_UXTHEME

-            m_imageData = new wxODButtonImageData;
+        {
+            m_imageData = new wxODButtonImageData(this, bitmap);
+            MakeOwnerDrawn();
+        }
+    }
+    else
+    {
+        m_imageData->SetBitmap(bitmap, which);
+    }

 
 

-        // if a bitmap was assigned to the bitmap, its best size must be
-        // changed to account for it
+    // 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();
         InvalidateBestSize();

-    }

 
 

-    m_imageData->SetBitmap(bitmap, which);
+    Refresh();
+}
+
+wxSize wxButton::DoGetBitmapMargins() const
+{
+    return m_imageData ? m_imageData->GetBitmapMargins() : wxSize(0, 0);

 }
 
 void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)
 }
 
 void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)


@@ -873,6 +1049,7 @@ void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)
     wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
 
     m_imageData->SetBitmapMargins(x, y);
     wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
 
     m_imageData->SetBitmapMargins(x, y);

+    InvalidateBestSize();

 }
 
 void wxButton::DoSetBitmapPosition(wxDirection dir)
 }
 
 void wxButton::DoSetBitmapPosition(wxDirection dir)


@@ -880,6 +1057,7 @@ void wxButton::DoSetBitmapPosition(wxDirection dir)
     wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
 
     m_imageData->SetBitmapPosition(dir);
     wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
 
     m_imageData->SetBitmapPosition(dir);

+    InvalidateBestSize();

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -887,20 +1065,41 @@ void wxButton::DoSetBitmapPosition(wxDirection dir)
 // ----------------------------------------------------------------------------
 
 // drawing helpers
 // ----------------------------------------------------------------------------
 
 // drawing helpers

+namespace
+{
+
+// 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;

 
 

-static void DrawButtonText(HDC hdc,
-                           RECT *pRect,
-                           const wxString& text,
-                           COLORREF col,
-                           int flags)
+    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,
+                    const wxString& text,
+                    COLORREF col,
+                    int flags)

 {
 {

-    COLORREF colOld = SetTextColor(hdc, col);
-    int modeOld = SetBkMode(hdc, TRANSPARENT);
+    wxTextColoursChanger changeFg(hdc, col, CLR_INVALID);
+    wxBkModeChanger changeBkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);

 
     // center text horizontally in any case
     flags |= DT_CENTER;
 
 
     // center text horizontally in any case
     flags |= DT_CENTER;
 

-    if ( text.find(_T('\n')) != wxString::npos )
+    if ( text.find(wxT('\n')) != wxString::npos )

     {
         // draw multiline label
 
     {
         // draw multiline label
 


@@ -927,12 +1126,9 @@ static void DrawButtonText(HDC hdc,
         ::DrawText(hdc, text.wx_str(), text.length(), pRect,
                    flags | DT_SINGLELINE | DT_VCENTER);
     }
         ::DrawText(hdc, text.wx_str(), text.length(), pRect,
                    flags | DT_SINGLELINE | DT_VCENTER);
     }

-
-    SetBkMode(hdc, modeOld);
-    SetTextColor(hdc, colOld);

 }
 
 }
 

-static void DrawRect(HDC hdc, const RECT& r)
+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.left, r.top, r.right, r.top);
     wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);


@@ -940,47 +1136,6 @@ static void DrawRect(HDC hdc, const RECT& r)
     wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
 }
 
     wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
 }
 

-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;
-}
-

 /*
    The button frame looks like this normally:
 
 /*
    The button frame looks like this normally:
 


@@ -1016,19 +1171,18 @@ bool wxButton::SetForegroundColour(const wxColour &colour)
    BGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 */
    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);
 
 {
     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--;
 
     r.right--;
     r.bottom--;


@@ -1067,152 +1221,239 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
         wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
     }
 
         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
 }
 
 #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");
     wxUxThemeHandle theme(button, L"BUTTON");

-    int iState;

 
 

-    if ( state & ODS_SELECTED )
+    // this array is indexed by wxButton::State values and so must be kept in
+    // sync with it
+    static const int uxStates[] =

     {
     {

-        iState = PBS_PRESSED;
-    }
-    else if ( button->HasCapture() || button->IsMouseInWindow() )
-    {
-        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
 
     // 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);
+        engine->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);

     }
 
     // draw background
     }
 
     // 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;
 
     // 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());
 
     if ( button->UseBgCol() )
     {
         COLORREF colBg = wxColourToRGB(button->GetBackgroundColour());

-        HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
+        AutoHBRUSH hbrushBackground(colBg);

 
         // don't overwrite the focus rect
 
         // don't overwrite the focus rect

+        RECT rectClient;
+        ::CopyRect(&rectClient, &rectBtn);

         ::InflateRect(&rectClient, -1, -1);
         FillRect(hdc, &rectClient, hbrushBackground);
         ::InflateRect(&rectClient, -1, -1);
         FillRect(hdc, &rectClient, hbrushBackground);

-        ::DeleteObject(hbrushBackground);

     }
 }
 #endif // wxUSE_UXTHEME
 
     }
 }
 #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;
 bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
 {
     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
     HDC hdc = lpDIS->hDC;

+

     UINT state = lpDIS->itemState;
     UINT state = lpDIS->itemState;

+    bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
+

     RECT rectBtn;
     CopyRect(&rectBtn, &lpDIS->rcItem);
 
     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
 #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) )
         {
         if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
         {

-            RECT rectFocus;
-            CopyRect(&rectFocus, &rectBtn);
-
-            // I don't know where does this constant come from, but this is how
-            // Windows draws them
-            InflateRect(&rectFocus, -4, -4);
+            DrawFocusRect(hdc, &rectBtn);

 
 

-            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);
+
+        const wxSize sizeBmp = bmp.GetSize();
+        const wxSize margin = m_imageData->GetBitmapMargins();
+        const wxSize sizeBmpWithMargins(sizeBmp + 2*margin);
+        wxRect rectButton(wxRectFromRECT(rectBtn));

 
 

-        if ( pushed )
+        // 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 = state & ODS_DISABLED
-                        ? ::GetSysColor(COLOR_GRAYTEXT)
-                        : wxColourToRGB(GetForegroundColour());

 
 

-    // 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, GetLabel(), colFg,
-                   state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
+    // finally draw the label
+    if ( ShowsLabel() )
+    {
+        COLORREF colFg = state & ODS_DISABLED
+                            ? ::GetSysColor(COLOR_GRAYTEXT)
+                            : wxColourToRGB(GetForegroundColour());
+
+        // 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, GetLabel(), colFg,
+                       state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
+    }

 
     return true;
 }
 
     return true;
 }