#include "wx/spinctrl.h"
#ifndef WX_PRECOMP
+ #include "wx/hashmap.h"
#include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
#include "wx/event.h"
#include "wx/textctrl.h"
+ #include "wx/wxcrtvararg.h"
#endif
#include "wx/msw/private.h"
// macros
// ----------------------------------------------------------------------------
-#if wxUSE_EXTENDED_RTTI
-WX_DEFINE_FLAGS( wxSpinCtrlStyle )
-
-wxBEGIN_FLAGS( wxSpinCtrlStyle )
- // 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)
-
- // 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)
-
- // 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)
-
- wxFLAGS_MEMBER(wxSP_HORIZONTAL)
- wxFLAGS_MEMBER(wxSP_VERTICAL)
- wxFLAGS_MEMBER(wxSP_ARROW_KEYS)
- wxFLAGS_MEMBER(wxSP_WRAP)
-
-wxEND_FLAGS( wxSpinCtrlStyle )
-
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxSpinCtrl, wxControl,"wx/spinbut.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxSpinCtrl)
- wxEVENT_RANGE_PROPERTY( Spin , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxSpinEvent )
- wxEVENT_PROPERTY( Updated , wxEVT_COMMAND_SPINCTRL_UPDATED , wxCommandEvent )
- wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
- wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
-
- wxPROPERTY( ValueString , wxString , SetValue , GetValue , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) ;
- wxPROPERTY( Value , int , SetValue, GetValue, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY( Min , int , SetMin, GetMin, 0, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
- wxPROPERTY( Max , int , SetMax, GetMax, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
- wxPROPERTY_FLAGS( WindowStyle , wxSpinCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-/*
- TODO PROPERTIES
- style wxSP_ARROW_KEYS
-*/
-wxEND_PROPERTIES_TABLE()
-
-wxBEGIN_HANDLERS_TABLE(wxSpinCtrl)
-wxEND_HANDLERS_TABLE()
-
-wxCONSTRUCTOR_6( wxSpinCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , ValueString , wxPoint , Position , wxSize , Size , long , WindowStyle )
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
-#endif
-
BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
EVT_CHAR(wxSpinCtrl::OnChar)
-
EVT_SET_FOCUS(wxSpinCtrl::OnSetFocus)
EVT_KILL_FOCUS(wxSpinCtrl::OnKillFocus)
- EVT_SPIN(wxID_ANY, wxSpinCtrl::OnSpinChange)
END_EVENT_TABLE()
#define GetBuddyHwnd() (HWND)(m_hwndBuddy)
// font size?)
static const int MARGIN_BETWEEN = 1;
+
+// ---------------------------------------------------------------------------
+// global vars
+// ---------------------------------------------------------------------------
+
+namespace
+{
+
+// Global hash used to find the spin control corresponding to the given buddy
+// text control HWND.
+WX_DECLARE_HASH_MAP(HWND, wxSpinCtrl *,
+ wxPointerHash, wxPointerEqual,
+ SpinForTextCtrl);
+
+SpinForTextCtrl gs_spinForTextCtrl;
+
+} // anonymous namespace
+
// ============================================================================
// implementation
// ============================================================================
-wxArraySpins wxSpinCtrl::ms_allSpins;
-
// ----------------------------------------------------------------------------
// wnd proc for the buddy text ctrl
// ----------------------------------------------------------------------------
WPARAM wParam,
LPARAM lParam)
{
- wxSpinCtrl *spin = (wxSpinCtrl *)wxGetWindowUserData(hwnd);
+ wxSpinCtrl * const spin = wxSpinCtrl::GetSpinForTextCtrl(hwnd);
- // forward some messages (the key and focus ones only so far) to
- // the spin ctrl
+ // forward some messages (mostly the key and focus ones) to the spin ctrl
switch ( message )
{
case WM_SETFOCUS:
case WM_DEADCHAR:
case WM_KEYUP:
case WM_KEYDOWN:
- spin->MSWWindowProc(message, wParam, lParam);
-
- // The control may have been deleted at this point, so check.
- if ( !::IsWindow(hwnd) || wxGetWindowUserData(hwnd) != spin )
- return 0;
+#ifdef WM_HELP
+ // we need to forward WM_HELP too to ensure that the context help
+ // associated with wxSpinCtrl is shown when the text control part of it
+ // is clicked with the "?" cursor
+ case WM_HELP:
+#endif
+ {
+ WXLRESULT result;
+ if ( spin->MSWHandleMessage(&result, message, wParam, lParam) )
+ {
+ // Do not let the message be processed by the window proc
+ // of the text control if it had been already handled at wx
+ // level, this is consistent with what happens for normal,
+ // non-composite controls.
+ return 0;
+ }
+
+ // The control may have been deleted at this point, so check.
+ if ( !::IsWindow(hwnd) )
+ return 0;
+ }
break;
case WM_GETDLGCODE:
- // we want to get WXK_RETURN in order to generate the event for it
- return DLGC_WANTCHARS;
+ if ( spin->HasFlag(wxTE_PROCESS_ENTER) )
+ {
+ long dlgCode = ::CallWindowProc
+ (
+ CASTWNDPROC spin->GetBuddyWndProc(),
+ hwnd,
+ message,
+ wParam,
+ lParam
+ );
+ dlgCode |= DLGC_WANTMESSAGE;
+ return dlgCode;
+ }
+ break;
}
return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
/* static */
wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
{
- wxSpinCtrl *spin = (wxSpinCtrl *)wxGetWindowUserData((HWND)hwndBuddy);
-
- int i = ms_allSpins.Index(spin);
-
- if ( i == wxNOT_FOUND )
+ const SpinForTextCtrl::const_iterator
+ it = gs_spinForTextCtrl.find(hwndBuddy);
+ if ( it == gs_spinForTextCtrl.end() )
return NULL;
+ wxSpinCtrl * const spin = it->second;
+
// sanity check
wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
- _T("wxSpinCtrl has incorrect buddy HWND!") );
+ wxT("wxSpinCtrl has incorrect buddy HWND!") );
return spin;
}
// process a WM_COMMAND generated by the buddy text control
bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
{
- if ( cmd == EN_CHANGE )
+ if ( (cmd == EN_CHANGE) && (!m_blockEvent ))
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
event.SetEventObject(this);
wxString val = wxGetWindowText(m_hwndBuddy);
event.SetString(val);
event.SetInt(GetValue());
- return GetEventHandler()->ProcessEvent(event);
+ return HandleWindowEvent(event);
}
// not processed
wxString val = wxGetWindowText(m_hwndBuddy);
event.SetString(val);
event.SetInt(GetValue());
- if ( GetEventHandler()->ProcessEvent(event) )
+ if ( HandleWindowEvent(event) )
return;
break;
}
eventNav.SetWindowChange(event.ControlDown());
eventNav.SetEventObject(this);
- if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
+ if ( GetParent()->HandleWindowEvent(eventNav) )
return;
}
break;
// construction
// ----------------------------------------------------------------------------
+void wxSpinCtrl::Init()
+{
+ m_blockEvent = false;
+ m_hwndBuddy = NULL;
+ m_wndProcBuddy = NULL;
+ m_oldValue = INT_MIN;
+}
+
bool wxSpinCtrl::Create(wxWindow *parent,
wxWindowID id,
const wxString& value,
int min, int max, int initial,
const wxString& name)
{
- // this should be in ctor/init function but I don't want to add one to 2.8
- // to avoid problems with default ctor which can be inlined in the user
- // code and so might not get this fix without recompilation
- m_oldValue = INT_MIN;
-
// before using DoGetBestSize(), have to set style to let the base class
// know whether this is a horizontal or vertical control (we're always
// vertical)
WXDWORD exStyle = 0;
WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;
- // calculate the sizes: the size given is the toal size for both controls
+ // Scroll text automatically if there is not enough space to show all of
+ // it, this is better than not allowing to enter more digits at all.
+ msStyle |= ES_AUTOHSCROLL;
+
+ // propagate text alignment style to text ctrl
+ if ( style & wxALIGN_RIGHT )
+ msStyle |= ES_RIGHT;
+ else if ( style & wxALIGN_CENTER )
+ msStyle |= ES_CENTER;
+
+ // calculate the sizes: the size given is the total size for both controls
// and we need to fit them both in the given width (height is the same)
wxSize sizeText(size), sizeBtn(size);
sizeBtn.x = wxSpinButton::DoGetBestSize().x;
sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
if ( sizeText.x <= 0 )
{
- wxLogDebug(_T("not enough space for wxSpinCtrl!"));
+ wxLogDebug(wxT("not enough space for wxSpinCtrl!"));
}
wxPoint posBtn(pos);
m_hwndBuddy = (WXHWND)::CreateWindowEx
(
exStyle, // sunken border
- _T("EDIT"), // window class
+ wxT("EDIT"), // window class
NULL, // no window title
msStyle, // style (will be shown later)
pos.x, pos.y, // position
wxSpinButtonBase::SetRange(min, max);
// subclass the text ctrl to be able to intercept some events
- wxSetWindowUserData(GetBuddyHwnd(), this);
+ gs_spinForTextCtrl[GetBuddyHwnd()] = this;
+
m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),
wxBuddyTextWndProc);
// associate the text window with the spin button
(void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
- SetValue(initial);
+ // If the initial text value is actually a number, it overrides the
+ // "initial" argument specified later.
+ long initialFromText;
+ if ( value.ToLong(&initialFromText) )
+ initial = initialFromText;
- // Set the range in the native control
+ // Set the range in the native control: notice that we must do it before
+ // calling SetValue() to use the correct validity checks for the initial
+ // value.
SetRange(min, max);
+ SetValue(initial);
+ // Also set the text part of the control if it was specified independently
+ // but don't generate an event for this, it would be unexpected.
+ m_blockEvent = true;
if ( !value.empty() )
- {
SetValue(value);
- m_oldValue = (int) wxAtol(value);
- }
- else
- {
- SetValue(wxString::Format(wxT("%d"), initial));
- m_oldValue = initial;
- }
-
- // do it after finishing with m_hwndBuddy creation to avoid generating
- // initial wxEVT_COMMAND_TEXT_UPDATED message
- ms_allSpins.Add(this);
+ m_blockEvent = false;
return true;
}
wxSpinCtrl::~wxSpinCtrl()
{
- ms_allSpins.Remove(this);
-
- // This removes spurious memory leak reporting
- if (ms_allSpins.GetCount() == 0)
- ms_allSpins.Clear();
-
// destroy the buddy window because this pointer which wxBuddyTextWndProc
// uses will not soon be valid any more
- ::DestroyWindow(GetBuddyHwnd());
+ ::DestroyWindow( GetBuddyHwnd() );
+
+ gs_spinForTextCtrl.erase(GetBuddyHwnd());
+}
+
+// ----------------------------------------------------------------------------
+// wxSpinCtrl-specific methods
+// ----------------------------------------------------------------------------
+
+int wxSpinCtrl::GetBase() const
+{
+ return ::SendMessage(GetHwnd(), UDM_GETBASE, 0, 0);
+}
+
+bool wxSpinCtrl::SetBase(int base)
+{
+ if ( !::SendMessage(GetHwnd(), UDM_SETBASE, base, 0) )
+ return false;
+
+ // Whether we need to be able enter "x" or not influences whether we should
+ // use ES_NUMBER for the buddy control.
+ UpdateBuddyStyle();
+
+ return true;
}
// ----------------------------------------------------------------------------
void wxSpinCtrl::SetValue(int val)
{
+ m_blockEvent = true;
+
wxSpinButton::SetValue(val);
- // normally setting the value of the spin button is enough as it updates
- // its buddy control automatically ...
- if ( wxGetWindowText(m_hwndBuddy).empty() )
+ // Normally setting the value of the spin button is enough as it updates
+ // its buddy control automatically but in a couple of situations it doesn't
+ // do it, for whatever reason, do it explicitly then:
+ const wxString text = wxGetWindowText(m_hwndBuddy);
+
+ // First case is when the text control is empty and the value is 0: the
+ // spin button just leaves it empty in this case, while we want to show 0
+ // in it.
+ if ( text.empty() && !val )
{
- // ... but sometimes it doesn't, notably when the value is 0 and the
- // text control is currently empty, the spin button seems to be happy
- // to leave it like this, while we really want to always show the
- // current value in the control, so do it manually
- ::SetWindowText(GetBuddyHwnd(), wxString::Format(_T("%d"), val));
+ ::SetWindowText(GetBuddyHwnd(), wxT("0"));
+ }
+
+ // Another one is when we're using hexadecimal base but the user input
+ // doesn't start with "0x" -- we prefer to show it to avoid ambiguity
+ // between decimal and hexadecimal.
+ if ( GetBase() == 16 &&
+ (text.length() < 3 || text[0] != '0' ||
+ (text[1] != 'x' && text[1] != 'X')) )
+ {
+ ::SetWindowText(GetBuddyHwnd(),
+ wxPrivate::wxSpinCtrlFormatAsHex(val, m_max).t_str());
}
m_oldValue = GetValue();
+
+ m_blockEvent = false;
}
int wxSpinCtrl::GetValue() const
{
- wxString val = wxGetWindowText(m_hwndBuddy);
+ const wxString val = wxGetWindowText(m_hwndBuddy);
long n;
- if ( (wxSscanf(val, wxT("%ld"), &n) != 1) )
+ if ( !val.ToLong(&n, GetBase()) )
n = INT_MIN;
if ( n < m_min )
::SendMessage(GetBuddyHwnd(), EM_SETSEL, (WPARAM)from, (LPARAM)to);
}
+// ----------------------------------------------------------------------------
+// wxSpinButton methods
+// ----------------------------------------------------------------------------
+
+void wxSpinCtrl::SetRange(int minVal, int maxVal)
+{
+ // Manually adjust the old value to avoid an event being sent from
+ // NormalizeValue() called from inside the base class SetRange() as we're
+ // not supposed to generate any events from here.
+ if ( m_oldValue < minVal )
+ m_oldValue = minVal;
+ else if ( m_oldValue > maxVal )
+ m_oldValue = maxVal;
+
+ wxSpinButton::SetRange(minVal, maxVal);
+
+ UpdateBuddyStyle();
+}
+
+void wxSpinCtrl::UpdateBuddyStyle()
+{
+ // this control is used for numeric entry so restrict the input to numeric
+ // keys only -- but only if we don't need to be able to enter "-" in it as
+ // otherwise this would become impossible and also if we don't use
+ // hexadecimal as entering "x" of the "0x" prefix wouldn't be allowed
+ // neither then
+ const DWORD styleOld = ::GetWindowLong(GetBuddyHwnd(), GWL_STYLE);
+ DWORD styleNew;
+ if ( m_min < 0 || GetBase() != 10 )
+ styleNew = styleOld & ~ES_NUMBER;
+ else
+ styleNew = styleOld | ES_NUMBER;
+
+ if ( styleNew != styleOld )
+ ::SetWindowLong(GetBuddyHwnd(), GWL_STYLE, styleNew);
+}
+
// ----------------------------------------------------------------------------
// forward some methods to subcontrols
// ----------------------------------------------------------------------------
return true;
}
+bool wxSpinCtrl::Reparent(wxWindowBase *newParent)
+{
+ // Reparenting both the updown control and its buddy does not seem to work:
+ // they continue to be connected somehow, but visually there is no feedback
+ // on the buddy edit control. To avoid this problem, we reparent the buddy
+ // window normally, but we recreate the updown control and reassign its
+ // buddy.
+
+ // Get the position before changing the parent as it would be offset after
+ // changing it.
+ const wxRect rect = GetRect();
+
+ if ( !wxWindowBase::Reparent(newParent) )
+ return false;
+
+ newParent->GetChildren().DeleteObject(this);
+
+ // destroy the old spin button after detaching it from this wxWindow object
+ // (notice that m_hWnd will be reset by UnsubclassWin() so save it first)
+ const HWND hwndOld = GetHwnd();
+ UnsubclassWin();
+ if ( !::DestroyWindow(hwndOld) )
+ {
+ wxLogLastError(wxT("DestroyWindow"));
+ }
+
+ // create and initialize the new one
+ if ( !wxSpinButton::Create(GetParent(), GetId(),
+ rect.GetPosition(), rect.GetSize(),
+ GetWindowStyle(), GetName()) )
+ return false;
+
+ // reapply our values to wxSpinButton
+ wxSpinButton::SetValue(GetValue());
+ SetRange(m_min, m_max);
+
+ // also set the size again with wxSIZE_ALLOW_MINUS_ONE flag: this is
+ // necessary if our original position used -1 for either x or y
+ SetSize(rect, wxSIZE_ALLOW_MINUS_ONE);
+
+ // associate it with the buddy control again
+ ::SetParent(GetBuddyHwnd(), GetHwndOf(GetParent()));
+ (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)GetBuddyHwnd(), 0);
+
+ return true;
+}
+
bool wxSpinCtrl::Enable(bool enable)
{
if ( !wxControl::Enable(enable) )
return false;
}
- ::EnableWindow(GetBuddyHwnd(), enable);
+ MSWEnableHWND(GetBuddyHwnd(), enable);
return true;
}
wxSpinButton::DoSetToolTip(tip);
if ( tip )
- tip->Add(m_hwndBuddy);
+ tip->AddOtherWindow(m_hwndBuddy);
}
#endif // wxUSE_TOOLTIPS
event.SetEventObject(this);
event.SetInt(value);
- (void)GetEventHandler()->ProcessEvent(event);
+ (void)HandleWindowEvent(event);
m_oldValue = value;
}
-void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
+bool wxSpinCtrl::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
+ WXWORD WXUNUSED(pos), WXHWND control)
{
- const int value = eventSpin.GetPosition();
- if ( value != m_oldValue )
+ wxCHECK_MSG( control, false, wxT("scrolling what?") );
+
+ if ( wParam != SB_THUMBPOSITION )
{
- SendSpinUpdate(value);
+ // probable SB_ENDSCROLL - we don't react to it
+ return false;
}
+
+ // Notice that we can't use "pos" from WM_VSCROLL as it is 16 bit and we
+ // might be using 32 bit range.
+ int new_value = GetValue();
+ if (m_oldValue != new_value)
+ SendSpinUpdate( new_value );
+
+ return true;
}
+bool wxSpinCtrl::MSWOnNotify(int WXUNUSED(idCtrl), WXLPARAM lParam, WXLPARAM *result)
+{
+ NM_UPDOWN *lpnmud = (NM_UPDOWN *)lParam;
+
+ if (lpnmud->hdr.hwndFrom != GetHwnd()) // make sure it is the right control
+ return false;
+
+ *result = 0; // never reject UP and DOWN events
+
+ return TRUE;
+}
+
+
// ----------------------------------------------------------------------------
// size calculations
// ----------------------------------------------------------------------------
wxSize wxSpinCtrl::DoGetBestSize() const
+{
+ return DoGetSizeFromTextSize(DEFAULT_ITEM_WIDTH);
+}
+
+wxSize wxSpinCtrl::DoGetSizeFromTextSize(int xlen, int ylen) const
{
wxSize sizeBtn = wxSpinButton::DoGetBestSize();
- sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
int y;
wxGetCharSize(GetHWND(), NULL, &y, GetFont());
- y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
-
// JACS: we should always use the height calculated
// from above, because otherwise we'll get a spin control
// that's too big. So never use the height calculated
// from wxSpinButton::DoGetBestSize().
- // if ( sizeBtn.y < y )
- {
- // make the text tall enough
- sizeBtn.y = y;
- }
+ wxSize tsize(xlen + sizeBtn.x + MARGIN_BETWEEN + 0.3 * y + 10,
+ EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
+
+ // Check if the user requested a non-standard height.
+ if ( ylen > 0 )
+ tsize.IncBy(0, ylen - y);
- return sizeBtn;
+ return tsize;
}
void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
int widthText = width - widthBtn - MARGIN_BETWEEN;
if ( widthText <= 0 )
{
- wxLogDebug(_T("not enough space for wxSpinCtrl!"));
+ wxLogDebug(wxT("not enough space for wxSpinCtrl!"));
}
// 1) The buddy window
*y = ctrlrect.bottom - ctrlrect.top;
}
+void wxSpinCtrl::DoGetClientSize(int *x, int *y) const
+{
+ RECT spinrect = wxGetClientRect(GetHwnd());
+ RECT textrect = wxGetClientRect(GetBuddyHwnd());
+ RECT ctrlrect;
+ UnionRect(&ctrlrect,&textrect, &spinrect);
+
+ if ( x )
+ *x = ctrlrect.right - ctrlrect.left;
+ if ( y )
+ *y = ctrlrect.bottom - ctrlrect.top;
+}
+
void wxSpinCtrl::DoGetPosition(int *x, int *y) const
{
// hack: pretend that our HWND is the text control just for a moment
projects / wxWidgets.git / blobdiff