AButton.cpp

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  AButton.cpp
 
  Dominic Mazzoni
 
*******************************************************************//*******************************************************************/
 
 
#include "AButton.h"
 
#include "AColor.h"
#include "TrackArt.h"
 
#include <wx/setup.h> // for wxUSE_* macros
 
#include <wx/dcbuffer.h>
#include <wx/eventfilter.h>
 
//This is needed for tooltips
#include "Project.h"
#include "ProjectStatus.h"
#include "../ProjectWindowBase.h"
#include <wx/tooltip.h>
 
 
 
BEGIN_EVENT_TABLE(AButton, wxWindow)
   EVT_MOUSE_EVENTS(AButton::OnMouseEvent)
   EVT_MOUSE_CAPTURE_LOST(AButton::OnCaptureLost)
   EVT_KEY_DOWN(AButton::OnKeyDown)
   EVT_CHAR_HOOK(AButton::OnCharHook)
   EVT_SET_FOCUS(AButton::OnSetFocus)
   EVT_KILL_FOCUS(AButton::OnKillFocus)
   EVT_PAINT(AButton::OnPaint)
   EVT_SIZE(AButton::OnSize)
   EVT_ERASE_BACKGROUND(AButton::OnErase)
END_EVENT_TABLE()
 
// LL:  An alternative to this might be to just use the wxEVT_KILL_FOCUS
//      or wxEVT_ACTIVATE events.
class AButton::Listener final
   : public wxEventFilter
{
public:
   Listener (AButton *button);
   ~Listener();
 
   int FilterEvent(wxEvent &event) override;
 
   void OnEvent();
 
private:
   AButton *mButton;
};
 
AButton::Listener::Listener (AButton *button)
: mButton(button)
{
   wxEvtHandler::AddFilter(this);
}
 
AButton::Listener::~Listener ()
{
   wxEvtHandler::RemoveFilter(this);
}
 
void AButton::Listener::OnEvent()
{
   if (!mButton->IsDown())
   {
      int idx = 0;
      // Ignore the event, consult key states.  One modifier key might
      // have gone up but another remained down.
      // Note that CMD (or CTRL) takes precedence over Shift if both are down
      // and alternates are defined for both
      // see also AButton::OnMouseEvent()
      if (wxGetKeyState(WXK_CONTROL) && mButton->HasAlternateImages(2))
         idx = 2;
      else if (wxGetKeyState(WXK_SHIFT) && mButton->HasAlternateImages(1))
         idx = 1;
 
      // Turn e.g. the "Play" button into a "Loop" button
      // or "Cut Preview" button
      mButton->SetAlternateIdx(idx);
   }
}
 
int AButton::Listener::FilterEvent(wxEvent &event)
{
   if (event.GetEventType() == wxEVT_KEY_DOWN ||
       event.GetEventType() == wxEVT_KEY_UP)
      OnEvent();
   else if (event.GetEventType() == wxEVT_SET_FOCUS)
      // A modal dialog might have eaten the modifier key-up with its own
      // filter before we saw it; this is adequate to fix the button image
      // when the dialog disappears.
      OnEvent();
   return Event_Skip;
}
 
AButton::AButton(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, bool toggle)
{
   Init(parent, id, pos, size, toggle);
}
 
AButton::AButton(wxWindow * parent,
                 wxWindowID id,
                 const wxPoint & pos,
                 const wxSize & size,
                 const wxImage& up,
                 const wxImage& over,
                 const wxImage& down,
                 const wxImage& overDown,
                 const wxImage& dis,
                 bool toggle)
{
   Init(parent, id, pos, size, toggle);
 
   SetAlternateImages(0, up, over, down, overDown, dis);
 
   SetMinSize(mImages[0][AButtonUp].GetSize());
   SetMaxSize(mImages[0][AButtonUp].GetSize());
}
 
AButton::~AButton()
{
   if(HasCapture())
      ReleaseMouse();
}
 
void AButton::SetButtonType(Type type)
{
   if(mType != type)
   {
      mType = type;
      InvalidateBestSize();
      Refresh(false);
      PostSizeEventToParent();
   }
}
 
 
void AButton::Init(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, bool toggle)
{
   SetBackgroundStyle(wxBG_STYLE_PAINT);
 
   // Bug in wxWidgets 2.8.12: by default pressing Enter on an AButton is interpreted as
   // a navigation event - move to next control. As a workaround, the style wxWANTS_CHARS
   // results in all characters being available in the OnKeyDown function below. Note
   // that OnKeyDown now has to handle navigation.
   Create(parent, id, pos, size, wxWANTS_CHARS);
 
   mToggle = toggle;
 
   mFocusRect = GetClientRect().Deflate( 3, 3 );
 
#if wxUSE_ACCESSIBILITY
   SetName( wxT("") );
   SetAccessible(safenew AButtonAx(this));
#endif
}
 
void AButton::UseDisabledAsDownHiliteImage(bool flag)
{
   mUseDisabledAsDownHiliteImage = flag;
}
 
void AButton::SetToolTip( const TranslatableString &toolTip )
{
   wxWindow::SetToolTip( toolTip.Stripped().Translation() );
}
 
void AButton::SetLabel( const TranslatableString &toolTip )
{
   wxWindow::SetLabel( toolTip.Stripped().Translation() );
   if(mType == FrameButton)
      InvalidateBestSize();
}
 
// This compensates for a but in wxWidgets 3.0.2 for mac:
// Couldn't set focus from keyboard when AcceptsFocus returns false;
// this bypasses that limitation
void AButton::SetFocusFromKbd()
{
   auto temp = TemporarilyAllowFocus();
   SetFocus();
}
 
void AButton::SetImages(const wxImage& up, const wxImage& over, const wxImage& down, const wxImage& overDown, const wxImage& dis)
{
   SetAlternateImages(0, up, over, down, overDown, dis);
}
 
void AButton::SetAlternateImages(unsigned idx,
                                 const wxImage& up,
                                 const wxImage& over,
                                 const wxImage& down,
                                 const wxImage& overDown,
                                 const wxImage& dis)
{
   if (1 + idx > mImages.size())
      mImages.resize(1 + idx);
   mImages[idx][AButtonUp] = up;
   mImages[idx][AButtonOver] = over;
   mImages[idx][AButtonDown] = down;
   mImages[idx][AButtonOverDown] = overDown;
   mImages[idx][AButtonDis] = dis;
}
 
void AButton::SetIcon(const wxImage& icon)
{
   mIcon = icon;
   Refresh(false);
}
 
void AButton::SetAlternateIdx(unsigned idx)
{
   // If alternate-image-state is already correct then
   // nothing to do (saves repainting button).
   if( mAlternateIdx == idx )
      return;
   mAlternateIdx = idx;
   Refresh(false);
   PostSizeEventToParent();
}
 
void AButton::FollowModifierKeys()
{
   if(!mListener)
      mListener = std::make_unique<Listener>(this);
}
 
void AButton::SetFocusRect(const wxRect & r)
{
   mFocusRect = r;
   mForceFocusRect = true;
}
 
AButton::AButtonState AButton::GetState()
{
   AButtonState state;
 
   if (!mEnabled && (!mToggle || !mButtonIsDown))
      return AButtonDis;
 
   if (mCursorIsInWindow) {
      if (mToggle) {
         if (mIsClicking) {
            state = mButtonIsDown ? AButtonUp : AButtonDown;
            if (mUseDisabledAsDownHiliteImage) {
               state = mButtonIsDown ? AButtonOverDown : AButtonDis;
            }
         }
         else {
            state = mButtonIsDown ? AButtonOverDown : AButtonOver;
            if (mUseDisabledAsDownHiliteImage) {
               state = mButtonIsDown ? AButtonDis : AButtonOver;
            }
         }
      }
      else {
         if (mIsClicking) {
            state = mButtonIsDown ? AButtonOver : AButtonDown;
         }
         else {
            state = mButtonIsDown ? AButtonOverDown : AButtonOver;
         }
      }
   }
   else {
      state = mButtonIsDown ? AButtonDown : AButtonUp;
   }
 
   return state;
}
 
void AButton::OnPaint(wxPaintEvent & WXUNUSED(event))
{
   wxBufferedPaintDC dc(this);
 
   dc.SetPen(*wxTRANSPARENT_PEN);
   dc.SetBrush(GetBackgroundColour());
   dc.Clear();
 
   const auto buttonRect = GetClientRect();
   if(HasAlternateImages(mAlternateIdx))
   {
      AButtonState buttonState = GetState();
      if(mType == ImageButton)
         dc.DrawBitmap(mImages[mAlternateIdx][buttonState], buttonRect.GetTopLeft());
      else if(mType == FrameButton)
      {
         wxBitmap bitmap = mImages[mAlternateIdx][buttonState];
         AColor::DrawFrame(dc, buttonRect, bitmap);
 
         const auto border = bitmap.GetSize() / 4;
 
         if(!GetLabel().IsEmpty())
         {
            dc.SetFont(GetFont());
            auto textRect = buttonRect;
            if(mIcon.IsOk())
            {
               auto fontMetrics = dc.GetFontMetrics();
               auto sumHeight = fontMetrics.height + mIcon.GetHeight() + border.y;
               dc.DrawBitmap(mIcon,
                  buttonRect.x + (buttonRect.width - mIcon.GetWidth()) / 2,
                  buttonRect.y + (buttonRect.height - sumHeight) / 2);
               textRect = wxRect(
                     buttonRect.x,
                     buttonRect.y + buttonRect.height / 2 + sumHeight / 2 - fontMetrics.height,
                     buttonRect.width,
                     fontMetrics.height);
            }
            dc.SetPen(GetForegroundColour());
            dc.DrawLabel(GetLabel(), textRect, wxALIGN_CENTER);
         }
         else if(mIcon.IsOk())
         {
            dc.DrawBitmap(mIcon,
               buttonRect.x + (buttonRect.width - mIcon.GetWidth()) / 2,
                  buttonRect.y + (buttonRect.height - mIcon.GetHeight()) / 2);
         }
      }
      else
      {
         wxBitmap bitmap = mImages[mAlternateIdx][buttonState];
         AColor::DrawHStretch(dc, GetClientRect(), bitmap);
         if(!GetLabel().IsEmpty())
         {
            dc.SetFont(GetFont());
            const auto text = TrackArt::TruncateText(dc, GetLabel(), GetClientSize().GetWidth() - 6);
            if(!text.IsEmpty())
            {
               dc.SetPen(GetForegroundColour());
               dc.DrawLabel(text, GetClientRect(), wxALIGN_CENTER);
            }
         }
      }
   }
   
   if(HasFocus())
      AColor::DrawFocus( dc, mFocusRect );
}
 
void AButton::OnErase(wxEraseEvent & WXUNUSED(event))
{
   // Ignore it to prevent flashing
}
 
void AButton::OnSize(wxSizeEvent & WXUNUSED(event))
{
   if (!mForceFocusRect)
   {
      mFocusRect = GetClientRect().Deflate( 3, 3 );
   }
   Refresh(false);
}
 
bool AButton::s_AcceptsFocus{ false };
 
bool AButton::HasAlternateImages(unsigned idx) const
{
   if (mImages.size() <= idx)
      return false;
 
   const auto &arr = mImages[idx];
   return (arr[0].Ok() &&
           arr[1].Ok() &&
           arr[2].Ok() &&
           arr[3].Ok() &&
           arr[4].Ok());
}
 
void AButton::OnMouseEvent(wxMouseEvent & event)
{
   wxSize clientSize = GetClientSize();
   AButtonState prevState = GetState();
 
   if (event.Entering()) {
      // Bug 1201:  On Mac, unsetting and re-setting the tooltip may be needed
      // to make it pop up when we want it.
      auto text = GetToolTipText();
      UnsetToolTip();
      wxWindow::SetToolTip(text);
      mCursorIsInWindow = true;
   }
   else if (event.Leaving())
      mCursorIsInWindow = false;
   else
      mCursorIsInWindow =
         (event.m_x >= 0 && event.m_y >= 0 &&
          event.m_x < clientSize.x && event.m_y < clientSize.y);
 
   if (mEnabled && event.IsButton()) {
      if (event.ButtonIsDown(wxMOUSE_BTN_LEFT)) {
         mIsClicking = true;
         if (event.ButtonDClick())
            mIsDoubleClicked = true;
         if( !HasCapture() )
            CaptureMouse();
      }
      else if (mIsClicking) {
         mIsClicking = false;
 
         if (HasCapture())
            ReleaseMouse();
 
         if (mCursorIsInWindow && (mToggle || !mButtonIsDown)) {
            if (mToggle)
               mButtonIsDown = !mButtonIsDown;
 
            mWasShiftDown = event.ShiftDown();
            mWasControlDown = event.ControlDown();
 
            Click();
         }
      }
   }
 
   // Only redraw and change tooltips if the state has changed.
   AButtonState newState = GetState();
 
   if (newState != prevState) {
      Refresh(false);
 
      if (mCursorIsInWindow)
         UpdateStatus();
      else {
         auto pProject = FindProjectFromWindow( this );
         if (pProject)
            ProjectStatus::Get( *pProject ).Set({});
      }
   }
   else
      event.Skip();
}
 
void AButton::UpdateStatus()
{
   if (mCursorIsInWindow) {
#if wxUSE_TOOLTIPS // Not available in wxX11
      // Display the tooltip in the status bar
      wxToolTip * pTip = this->GetToolTip();
      if( pTip ) {
         auto tipText = Verbatim( pTip->GetTip() );
         if (!mEnabled)
            tipText.Join( XO("(disabled)"), " " );
         auto pProject = FindProjectFromWindow( this );
         if (pProject)
            ProjectStatus::Get( *pProject ).Set( tipText );
      }
#endif
   }
}
 
void AButton::OnCaptureLost(wxMouseCaptureLostEvent & WXUNUSED(event))
{
   wxMouseEvent e(wxEVT_LEFT_UP);
   e.m_x = -1;
   e.m_y = -1;
   OnMouseEvent(e);
}
 
// Note that OnKeyDown has to handle navigation because wxWANTS_CHARS
// flag was set - see above.
void AButton::OnKeyDown(wxKeyEvent & event)
{
   switch( event.GetKeyCode() )
   {
   case WXK_RIGHT:
   case WXK_DOWN:
      Navigate(wxNavigationKeyEvent::IsForward);
      break;
   case WXK_LEFT:
   case WXK_UP:
      Navigate(wxNavigationKeyEvent::IsBackward);
      break;
   case WXK_TAB:
      Navigate(wxNavigationKeyEvent::FromTab | (event.ShiftDown()
               ? wxNavigationKeyEvent::IsBackward
               : wxNavigationKeyEvent::IsForward));
      break;
   default:
      event.Skip();
   }
}
 
void AButton::OnCharHook(wxKeyEvent& event)
{
   switch(event.GetKeyCode())
   {
   case WXK_RETURN:
   case WXK_NUMPAD_ENTER:
      if( !mEnabled )
         break;
      mWasShiftDown = event.ShiftDown();
      mWasControlDown = event.ControlDown();
      if(mToggle)
      {
         mButtonIsDown = !mButtonIsDown;
         Refresh(false);
#if wxUSE_ACCESSIBILITY
         GetAccessible()->NotifyEvent(wxACC_EVENT_OBJECT_NAMECHANGE,
            this, wxOBJID_CLIENT, wxACC_SELF);
#endif
      }
      Click();
      break;
   default:
      event.Skip();
   }
}
 
void AButton::OnSetFocus(wxFocusEvent & WXUNUSED(event))
{
   Refresh( false );
}
 
void AButton::OnKillFocus(wxFocusEvent & WXUNUSED(event))
{
   Refresh( false );
}
 
bool AButton::WasShiftDown()
{
   return mWasShiftDown;
}
 
bool AButton::WasControlDown()
{
   return mWasControlDown;
}
 
void AButton::Enable()
{
   bool changed = wxWindow::Enable(true);
   if ( !mEnabled ) {
      mEnabled = true;
      Refresh(false);
   }
}
 
void AButton::Disable()
{
   // Bug 1565: Tooltips not showing on disabled buttons.
   // The fix is to NOT tell windows that the button is disabled.
   // The button's appearance will still change to show it is disabled
   // since we control that rather than windows.
#ifndef __WXMSW__
   wxWindow::Enable(false);
#endif
   if (GetCapture()==this)
      ReleaseMouse();
   if ( mEnabled ) {
      mEnabled = false;
      Refresh(false);
   }
}
 
void AButton::PushDown()
{
   if (!mButtonIsDown) {
      mButtonIsDown = true;
      this->Refresh(false);
   }
}
 
void AButton::PopUp()
{
   if (mButtonIsDown) {
      mButtonIsDown = false;
 
      this->Refresh(false);
   }
 
   if (GetCapture()==this)
      ReleaseMouse();
}
 
void AButton::Click()
{
   wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
   event.SetEventObject(this);
   // Be sure to use SafelyProcessEvent so that exceptions do not propagate
   // out of DoDefaultAction
   GetEventHandler()->SafelyProcessEvent(event);
}
 
void AButton::SetShift(bool shift)
{
   mWasShiftDown = shift;
}
 
void AButton::SetControl(bool control)
{
   mWasControlDown = control;
}
 
wxSize AButton::DoGetBestClientSize() const
{
   if(HasAlternateImages(mAlternateIdx))
   {
      const auto& image = mImages[mAlternateIdx][AButtonUp];
      switch(mType)
      {
      case FrameButton:
         {
            if(!GetLabel().IsEmpty())
            {
               const auto border = image.GetSize() / 4;
               
               wxMemoryDC dc;
               dc.SetFont(GetFont());
               auto bestSize = dc.GetTextExtent(GetLabel());
               if(mIcon.IsOk())
               {
                  bestSize.x = std::max(bestSize.x, mIcon.GetWidth());
                  bestSize.y = bestSize.y > 0
                     ? bestSize.y + border.y + mIcon.GetHeight()
                     : mIcon.GetHeight();
               }
               if(bestSize.x > 0)
                  bestSize.x += border.x * 2;
               if(bestSize.y > 0)
                  bestSize.y += border.y * 2;
               return bestSize;
            }
            if(mIcon.Ok())
               return mIcon.GetSize();
            return image.GetSize();
         }
      case TextButton:
         return {-1, image.GetHeight() };
      default:
         return image.GetSize();
      }
   }
   return wxWindow::DoGetBestClientSize();
}
 
auto AButton::TemporarilyAllowFocus() -> TempAllowFocus {
   s_AcceptsFocus = true;
   return TempAllowFocus{ &s_AcceptsFocus };
}
 
#if wxUSE_ACCESSIBILITY
 
AButtonAx::AButtonAx( wxWindow *window ):
   WindowAccessible( window )
{
}
 
AButtonAx::~AButtonAx()
{
}
 
// Performs the default action. childId is 0 (the action for this object)
// or > 0 (the action for a child).
// Return wxACC_NOT_SUPPORTED if there is no default action for this
// window (e.g. an edit control).
wxAccStatus AButtonAx::DoDefaultAction(int WXUNUSED(childId))
{
   AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
   if(ab && ab->IsEnabled()) {
      ab->mWasShiftDown = false;
      ab->mWasControlDown = false;
      if(ab->mToggle)
      {
         ab->mButtonIsDown = !ab->mButtonIsDown;
         ab->Refresh(false);
      }
      ab->Click();
   }
 
   return wxACC_OK;
}
 
// Retrieves the address of an IDispatch interface for the specified child.
// All objects must support this property.
wxAccStatus AButtonAx::GetChild( int childId, wxAccessible** child )
{
   if( childId == wxACC_SELF )
   {
      *child = this;
   }
   else
   {
      *child = NULL;
   }
 
   return wxACC_OK;
}
 
// Gets the number of children.
wxAccStatus AButtonAx::GetChildCount(int* childCount)
{
   *childCount = 0;
 
   return wxACC_OK;
}
 
// Gets the default action for this object (0) or > 0 (the action for
// a child).  Return wxACC_OK even if there is no action. actionName
// is the action, or the empty string if there is no action.  The
// retrieved string describes the action that is performed on an
// object, not what the object does as a result. For example, a
// toolbar button that prints a document has a default action of
// "Press" rather than "Prints the current document."
wxAccStatus AButtonAx::GetDefaultAction(int WXUNUSED(childId), wxString* actionName)
{
   *actionName = _( "Press" );
 
   return wxACC_OK;
}
 
// Returns the description for this object or a child.
wxAccStatus AButtonAx::GetDescription( int WXUNUSED(childId), wxString *description )
{
   description->clear();
 
   return wxACC_OK;
}
 
// Gets the window with the keyboard focus.
// If childId is 0 and child is NULL, no object in
// this subhierarchy has the focus.
// If this object has the focus, child should be 'this'.
wxAccStatus AButtonAx::GetFocus(int* childId, wxAccessible** child)
{
   *childId = 0;
   *child = this;
 
   return wxACC_OK;
}
 
// Returns help text for this object or a child, similar to tooltip text.
wxAccStatus AButtonAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
{
#if wxUSE_TOOLTIPS // Not available in wxX11
   AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
   wxToolTip *pTip = ab->GetToolTip();
   if( pTip )
   {
      *helpText = pTip->GetTip();
   }
 
   return wxACC_OK;
#else
   helpText->clear();
 
   return wxACC_NOT_SUPPORTED;
#endif
}
 
// Returns the keyboard shortcut for this object or child.
// Return e.g. ALT+K
wxAccStatus AButtonAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
{
   shortcut->clear();
 
   return wxACC_OK;
}
 
// Returns the rectangle for this object (id = 0) or a child element (id > 0).
// rect is in screen coordinates.
wxAccStatus AButtonAx::GetLocation( wxRect& rect, int WXUNUSED(elementId) )
{
   AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
   rect = ab->GetRect();
   rect.SetPosition( ab->GetParent()->ClientToScreen( rect.GetPosition() ) );
 
   return wxACC_OK;
}
 
// Gets the name of the specified object.
wxAccStatus AButtonAx::GetName(int WXUNUSED(childId), wxString* name)
{
   AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
   *name = ab->GetName();
   if( name->empty() )
   {
      *name = ab->GetLabel();
   }
 
   if( name->empty() )
   {
      *name = _("Button");
   }
 
   /* In the MSAA frame work, there isn't such a thing as a toggle button.
   In particular, narrator does not read the wxACC_STATE_SYSTEM_PRESSED state at all.
   So to imitate a toggle button, include the role and the state in the name, and
   create a name change event when the state changes. */
   if (ab->mToggle) {
      *name += wxT(" ") +
         _("Button")
         + wxT(" ") +
         /* i18n-hint: whether a button is pressed or not pressed */
         (ab->IsDown() ? _("pressed") : _("not pressed"));
   }
 
   return wxACC_OK;
}
 
// Returns a role constant.
wxAccStatus AButtonAx::GetRole(int WXUNUSED(childId), wxAccRole* role)
{
   AButton* ab = wxDynamicCast(GetWindow(), AButton);
 
   // For a toggle button, the role is included in the name, so read nothing
   *role = ab->mToggle ? wxROLE_SYSTEM_STATICTEXT : wxROLE_SYSTEM_PUSHBUTTON;
 
   return wxACC_OK;
}
 
// Gets a variant representing the selected children
// of this object.
// Acceptable values:
// - a null variant (IsNull() returns TRUE)
// - a list variant (GetType() == wxT("list"))
// - an integer representing the selected child element,
//   or 0 if this object is selected (GetType() == wxT("long"))
// - a "void*" pointer to a wxAccessible child object
wxAccStatus AButtonAx::GetSelections( wxVariant * WXUNUSED(selections) )
{
   return wxACC_NOT_IMPLEMENTED;
}
 
// Returns a state constant.
wxAccStatus AButtonAx::GetState(int WXUNUSED(childId), long* state)
{
   AButton *ab = wxDynamicCast( GetWindow(), AButton );
   *state = 0;
   if(!ab->IsEnabled())
       *state = wxACC_STATE_SYSTEM_UNAVAILABLE;
   else
   {
      // For a toggle button, the state is included in the name
      if(ab->mButtonIsDown && !ab->mToggle)
         *state |= wxACC_STATE_SYSTEM_PRESSED;
 
      if(ab->mCursorIsInWindow)
         *state |= wxACC_STATE_SYSTEM_HOTTRACKED;
 
      *state |= wxACC_STATE_SYSTEM_FOCUSABLE;
      if(ab->HasFocus())
         *state |= wxACC_STATE_SYSTEM_FOCUSED;
   }
   return wxACC_OK;
}
 
// Returns a localized string representing the value for the object
// or child.
wxAccStatus AButtonAx::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
{
   return wxACC_NOT_SUPPORTED;
}
 
#endif