src/msw/spinctrl.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        msw/spinctrl.cpp
// Purpose:     wxSpinCtrl class implementation for Win32
// Author:      Vadim Zeitlin
// Modified by:
// Created:     22.07.99
// RCS-ID:      $Id$
// Copyright:   (c) Vadim Zeitlin
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

#ifdef __GNUG__
    #pragma implementation "spinctrlbase.h"
    #pragma implementation "spinctrl.h"
#endif

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

#if wxUSE_SPINCTRL

#if defined(__WIN95__)

#include "wx/spinctrl.h"
#include "wx/msw/private.h"

#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
    #include <commctrl.h>
#endif

#include <limits.h>         // for INT_MIN

// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)

BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
    EVT_CHAR(wxSpinCtrl::OnChar)

    EVT_SET_FOCUS(wxSpinCtrl::OnSetFocus)

    EVT_SPIN(-1, wxSpinCtrl::OnSpinChange)
END_EVENT_TABLE()

#define GetBuddyHwnd()      (HWND)(m_hwndBuddy)

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// the margin between the up-down control and its buddy (can be arbitrary,
// choose what you like - or may be decide during run-time depending on the
// font size?)
static const int MARGIN_BETWEEN = 1;

// ============================================================================
// implementation
// ============================================================================

wxArraySpins wxSpinCtrl::ms_allSpins;

// ----------------------------------------------------------------------------
// wnd proc for the buddy text ctrl
// ----------------------------------------------------------------------------

LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
                                            UINT message,
                                            WPARAM wParam,
                                            LPARAM lParam)
{
    wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA);

    // forward some messages (the key and focus ones only so far) to
    // the spin ctrl
    switch ( message )
    {
        case WM_SETFOCUS:
            // if the focus comes from the spin control itself, don't set it
            // back to it -- we don't want to go into an infinite loop
            if ( wParam == spin->GetHWND() )
                break;
            //else: fall through

        case WM_KILLFOCUS:
        case WM_CHAR:
        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) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
                return 0;
            break;

        case WM_GETDLGCODE:
            // we want to get WXK_RETURN in order to generate the event for it
            return DLGC_WANTCHARS;
    }

    return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
                            hwnd, message, wParam, lParam);
}

/* static */
wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
{
    wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong((HWND)hwndBuddy,
                                                     GWL_USERDATA);

    int i = ms_allSpins.Index(spin);

    if ( i == wxNOT_FOUND )
        return NULL;

    // sanity check
    wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
                  _T("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))
{
    switch (cmd)
    {
    case EN_CHANGE:
        {
            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);
        }
    case EN_SETFOCUS:
    case EN_KILLFOCUS:
        {
            wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
                    : wxEVT_SET_FOCUS,
                    m_windowId);
            event.SetEventObject( this );
            return GetEventHandler()->ProcessEvent(event);
        }
     default:
        break;
    }

    // not processed
    return FALSE;
}

void wxSpinCtrl::OnChar(wxKeyEvent& event)
{
    switch ( event.GetKeyCode() )
    {
        case WXK_RETURN:
            {
                wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
                InitCommandEvent(event);
                wxString val = wxGetWindowText(m_hwndBuddy);
                event.SetString(val);
                event.SetInt(GetValue());
                if ( GetEventHandler()->ProcessEvent(event) )
                    return;
                break;
            }

        case WXK_TAB:
            // always produce navigation event - even if we process TAB
            // ourselves the fact that we got here means that the user code
            // decided to skip processing of this TAB - probably to let it
            // do its default job.
            {
                wxNavigationKeyEvent eventNav;
                eventNav.SetDirection(!event.ShiftDown());
                eventNav.SetWindowChange(event.ControlDown());
                eventNav.SetEventObject(this);

                if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
                    return;
            }
            break;
    }

    // no, we didn't process it
    event.Skip();
}

void wxSpinCtrl::OnSetFocus(wxFocusEvent& event)
{
    // when we get focus, give it to our buddy window as it needs it more than
    // we do
    ::SetFocus((HWND)m_hwndBuddy);

    event.Skip();
}

// ----------------------------------------------------------------------------
// construction
// ----------------------------------------------------------------------------

bool wxSpinCtrl::Create(wxWindow *parent,
                        wxWindowID id,
                        const wxString& value,
                        const wxPoint& pos,
                        const wxSize& size,
                        long style,
                        int min, int max, int initial,
                        const wxString& name)
{
    // 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)
    style |= wxSP_VERTICAL;

    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
        style |= wxBORDER_SUNKEN;

    SetWindowStyle(style);

    WXDWORD exStyle = 0;
    WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;

    // calculate the sizes: the size given is the toal 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;
    if ( sizeText.x <= 0 )
    {
        // DEFAULT_ITEM_WIDTH is the default width for the text control
        sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
    }

    sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
    if ( sizeText.x <= 0 )
    {
        wxLogDebug(_T("not enough space for wxSpinCtrl!"));
    }

    wxPoint posBtn(pos);
    posBtn.x += sizeText.x + MARGIN_BETWEEN;

    // we must create the text control before the spin button for the purpose
    // of the dialog navigation: if there is a static text just before the spin
    // control, activating it by Alt-letter should give focus to the text
    // control, not the spin and the dialog navigation code will give focus to
    // the next control (at Windows level), not the one after it

    // create the text window

    m_hwndBuddy = (WXHWND)::CreateWindowEx
                    (
                     exStyle,                // sunken border
                     _T("EDIT"),             // window class
                     NULL,                   // no window title
                     msStyle,                // style (will be shown later)
                     pos.x, pos.y,           // position
                     0, 0,                   // size (will be set later)
                     GetHwndOf(parent),      // parent
                     (HMENU)-1,              // control id
                     wxGetInstance(),        // app instance
                     NULL                    // unused client data
                    );

    if ( !m_hwndBuddy )
    {
        wxLogLastError(wxT("CreateWindow(buddy text window)"));

        return FALSE;
    }


    // create the spin button
    if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
    {
        return FALSE;
    }

    SetRange(min, max);
    SetValue(initial);

    // subclass the text ctrl to be able to intercept some events
    m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
    ::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
    ::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);

    // should have the same font as the other controls
    SetFont(GetParent()->GetFont());

    // set the size of the text window - can do it only now, because we
    // couldn't call DoGetBestSize() before as font wasn't set
    if ( sizeText.y <= 0 )
    {
        int cx, cy;
        wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());

        sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
    }

    DoMoveWindow(pos.x, pos.y,
                 sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);

    (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);

    // associate the text window with the spin button
    (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);

    if ( !value.IsEmpty() )
    {
        SetValue(value);
    }

    // do it after finishing with m_hwndBuddy creation to avoid generating
    // initial wxEVT_COMMAND_TEXT_UPDATED message
    ms_allSpins.Add(this);

    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());
}

// ----------------------------------------------------------------------------
// wxTextCtrl-like methods
// ----------------------------------------------------------------------------

void wxSpinCtrl::SetValue(const wxString& text)
{
    if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
    {
        wxLogLastError(wxT("SetWindowText(buddy)"));
    }
}

int wxSpinCtrl::GetValue() const
{
    wxString val = wxGetWindowText(m_hwndBuddy);

    long n;
    if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
        n = INT_MIN;

    return n;
}

void wxSpinCtrl::SetSelection(long from, long to)
{
    // if from and to are both -1, it means (in wxWindows) that all text should
    // be selected - translate into Windows convention
    if ( (from == -1) && (to == -1) )
    {
        from = 0;
    }

    ::SendMessage((HWND)m_hwndBuddy, EM_SETSEL, (WPARAM)from, (LPARAM)to);
}

// ----------------------------------------------------------------------------
// forward some methods to subcontrols
// ----------------------------------------------------------------------------

bool wxSpinCtrl::SetFont(const wxFont& font)
{
    if ( !wxWindowBase::SetFont(font) )
    {
        // nothing to do
        return FALSE;
    }

    WXHANDLE hFont = GetFont().GetResourceHandle();
    (void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);

    return TRUE;
}

bool wxSpinCtrl::Show(bool show)
{
    if ( !wxControl::Show(show) )
    {
        return FALSE;
    }

    ::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);

    return TRUE;
}

bool wxSpinCtrl::Enable(bool enable)
{
    if ( !wxControl::Enable(enable) )
    {
        return FALSE;
    }

    ::EnableWindow(GetBuddyHwnd(), enable);

    return TRUE;
}

void wxSpinCtrl::SetFocus()
{
    ::SetFocus(GetBuddyHwnd());
}

// ----------------------------------------------------------------------------
// event processing
// ----------------------------------------------------------------------------

void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
{
    wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
    event.SetEventObject(this);
    event.SetInt(eventSpin.GetPosition());

    (void)GetEventHandler()->ProcessEvent(event);

    if ( eventSpin.GetSkipped() )
    {
        event.Skip();
    }
}

// ----------------------------------------------------------------------------
// size calculations
// ----------------------------------------------------------------------------

wxSize wxSpinCtrl::DoGetBestSize() 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);

    if ( sizeBtn.y < y )
    {
        // make the text tall enough
        sizeBtn.y = y;
    }

    return sizeBtn;
}

void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
{
    int widthBtn = wxSpinButton::DoGetBestSize().x;
    int widthText = width - widthBtn - MARGIN_BETWEEN;
    if ( widthText <= 0 )
    {
        wxLogDebug(_T("not enough space for wxSpinCtrl!"));
    }

    if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
    {
        wxLogLastError(wxT("MoveWindow(buddy)"));
    }

    x += widthText + MARGIN_BETWEEN;
    if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
    {
        wxLogLastError(wxT("MoveWindow"));
    }
}

// get total size of the control
void wxSpinCtrl::DoGetSize(int *x, int *y) const
{
    RECT spinrect, textrect, ctrlrect;
    GetWindowRect(GetHwnd(), &spinrect);
    GetWindowRect(GetBuddyHwnd(), &textrect);
    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
    WXHWND hWnd = GetHWND();
    wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;

    wxSpinButton::DoGetPosition(x, y);

    wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
}

#endif // __WIN95__

#endif
       // wxUSE_SPINCTRL
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: msw/spinctrl.cpp
	3	// Purpose: wxSpinCtrl class implementation for Win32
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 22.07.99
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Vadim Zeitlin
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	#ifdef __GNUG__
	17	#pragma implementation "spinctrlbase.h"
	18	#pragma implementation "spinctrl.h"
	19	#endif
	20
	21	// ----------------------------------------------------------------------------
	22	// headers
	23	// ----------------------------------------------------------------------------
	24
	25	// for compilers that support precompilation, includes "wx.h".
	26	#include "wx/wxprec.h"
	27
	28	#ifdef __BORLANDC__
	29	#pragma hdrstop
	30	#endif
	31
	32	#ifndef WX_PRECOMP
	33	#include "wx/wx.h"
	34	#endif
	35
	36	#if wxUSE_SPINCTRL
	37
	38	#if defined(__WIN95__)
	39
	40	#include "wx/spinctrl.h"
	41	#include "wx/msw/private.h"
	42
	43	#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
	44	#include <commctrl.h>
	45	#endif
	46
	47	#include <limits.h> // for INT_MIN
	48
	49	// ----------------------------------------------------------------------------
	50	// macros
	51	// ----------------------------------------------------------------------------
	52
	53	IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
	54
	55	BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
	56	EVT_CHAR(wxSpinCtrl::OnChar)
	57
	58	EVT_SET_FOCUS(wxSpinCtrl::OnSetFocus)
	59
	60	EVT_SPIN(-1, wxSpinCtrl::OnSpinChange)
	61	END_EVENT_TABLE()
	62
	63	#define GetBuddyHwnd() (HWND)(m_hwndBuddy)
	64
	65	// ----------------------------------------------------------------------------
	66	// constants
	67	// ----------------------------------------------------------------------------
	68
	69	// the margin between the up-down control and its buddy (can be arbitrary,
	70	// choose what you like - or may be decide during run-time depending on the
	71	// font size?)
	72	static const int MARGIN_BETWEEN = 1;
	73
	74	// ============================================================================
	75	// implementation
	76	// ============================================================================
	77
	78	wxArraySpins wxSpinCtrl::ms_allSpins;
	79
	80	// ----------------------------------------------------------------------------
	81	// wnd proc for the buddy text ctrl
	82	// ----------------------------------------------------------------------------
	83
	84	LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
	85	UINT message,
	86	WPARAM wParam,
	87	LPARAM lParam)
	88	{
	89	wxSpinCtrl spin = (wxSpinCtrl )::GetWindowLong(hwnd, GWL_USERDATA);
	90
	91	// forward some messages (the key and focus ones only so far) to
	92	// the spin ctrl
	93	switch ( message )
	94	{
	95	case WM_SETFOCUS:
	96	// if the focus comes from the spin control itself, don't set it
	97	// back to it -- we don't want to go into an infinite loop
	98	if ( wParam == spin->GetHWND() )
	99	break;
	100	//else: fall through
	101
	102	case WM_KILLFOCUS:
	103	case WM_CHAR:
	104	case WM_DEADCHAR:
	105	case WM_KEYUP:
	106	case WM_KEYDOWN:
	107	spin->MSWWindowProc(message, wParam, lParam);
	108
	109	// The control may have been deleted at this point, so check.
	110	if (!(::IsWindow(hwnd) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
	111	return 0;
	112	break;
	113
	114	case WM_GETDLGCODE:
	115	// we want to get WXK_RETURN in order to generate the event for it
	116	return DLGC_WANTCHARS;
	117	}
	118
	119	return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
	120	hwnd, message, wParam, lParam);
	121	}
	122
	123	/* static */
	124	wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
	125	{
	126	wxSpinCtrl spin = (wxSpinCtrl )::GetWindowLong((HWND)hwndBuddy,
	127	GWL_USERDATA);
	128
	129	int i = ms_allSpins.Index(spin);
	130
	131	if ( i == wxNOT_FOUND )
	132	return NULL;
	133
	134	// sanity check
	135	wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
	136	_T("wxSpinCtrl has incorrect buddy HWND!") );
	137
	138	return spin;
	139	}
	140
	141	// process a WM_COMMAND generated by the buddy text control
	142	bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
	143	{
	144	switch (cmd)
	145	{
	146	case EN_CHANGE:
	147	{
	148	wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
	149	event.SetEventObject(this);
	150	wxString val = wxGetWindowText(m_hwndBuddy);
	151	event.SetString(val);
	152	event.SetInt(GetValue());
	153	return GetEventHandler()->ProcessEvent(event);
	154	}
	155	case EN_SETFOCUS:
	156	case EN_KILLFOCUS:
	157	{
	158	wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
	159	: wxEVT_SET_FOCUS,
	160	m_windowId);
	161	event.SetEventObject( this );
	162	return GetEventHandler()->ProcessEvent(event);
	163	}
	164	default:
	165	break;
	166	}
	167
	168	// not processed
	169	return FALSE;
	170	}
	171
	172	void wxSpinCtrl::OnChar(wxKeyEvent& event)
	173	{
	174	switch ( event.GetKeyCode() )
	175	{
	176	case WXK_RETURN:
	177	{
	178	wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
	179	InitCommandEvent(event);
	180	wxString val = wxGetWindowText(m_hwndBuddy);
	181	event.SetString(val);
	182	event.SetInt(GetValue());
	183	if ( GetEventHandler()->ProcessEvent(event) )
	184	return;
	185	break;
	186	}
	187
	188	case WXK_TAB:
	189	// always produce navigation event - even if we process TAB
	190	// ourselves the fact that we got here means that the user code
	191	// decided to skip processing of this TAB - probably to let it
	192	// do its default job.
	193	{
	194	wxNavigationKeyEvent eventNav;
	195	eventNav.SetDirection(!event.ShiftDown());
	196	eventNav.SetWindowChange(event.ControlDown());
	197	eventNav.SetEventObject(this);
	198
	199	if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
	200	return;
	201	}
	202	break;
	203	}
	204
	205	// no, we didn't process it
	206	event.Skip();
	207	}
	208
	209	void wxSpinCtrl::OnSetFocus(wxFocusEvent& event)
	210	{
	211	// when we get focus, give it to our buddy window as it needs it more than
	212	// we do
	213	::SetFocus((HWND)m_hwndBuddy);
	214
	215	event.Skip();
	216	}
	217
	218	// ----------------------------------------------------------------------------
	219	// construction
	220	// ----------------------------------------------------------------------------
	221
	222	bool wxSpinCtrl::Create(wxWindow *parent,
	223	wxWindowID id,
	224	const wxString& value,
	225	const wxPoint& pos,
	226	const wxSize& size,
	227	long style,
	228	int min, int max, int initial,
	229	const wxString& name)
	230	{
	231	// before using DoGetBestSize(), have to set style to let the base class
	232	// know whether this is a horizontal or vertical control (we're always
	233	// vertical)
	234	style \|= wxSP_VERTICAL;
	235
	236	if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
	237	style \|= wxBORDER_SUNKEN;
	238
	239	SetWindowStyle(style);
	240
	241	WXDWORD exStyle = 0;
	242	WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;
	243
	244	// calculate the sizes: the size given is the toal size for both controls
	245	// and we need to fit them both in the given width (height is the same)
	246	wxSize sizeText(size), sizeBtn(size);
	247	sizeBtn.x = wxSpinButton::DoGetBestSize().x;
	248	if ( sizeText.x <= 0 )
	249	{
	250	// DEFAULT_ITEM_WIDTH is the default width for the text control
	251	sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
	252	}
	253
	254	sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
	255	if ( sizeText.x <= 0 )
	256	{
	257	wxLogDebug(_T("not enough space for wxSpinCtrl!"));
	258	}
	259
	260	wxPoint posBtn(pos);
	261	posBtn.x += sizeText.x + MARGIN_BETWEEN;
	262
	263	// we must create the text control before the spin button for the purpose
	264	// of the dialog navigation: if there is a static text just before the spin
	265	// control, activating it by Alt-letter should give focus to the text
	266	// control, not the spin and the dialog navigation code will give focus to
	267	// the next control (at Windows level), not the one after it
	268
	269	// create the text window
	270
	271	m_hwndBuddy = (WXHWND)::CreateWindowEx
	272	(
	273	exStyle, // sunken border
	274	_T("EDIT"), // window class
	275	NULL, // no window title
	276	msStyle, // style (will be shown later)
	277	pos.x, pos.y, // position
	278	0, 0, // size (will be set later)
	279	GetHwndOf(parent), // parent
	280	(HMENU)-1, // control id
	281	wxGetInstance(), // app instance
	282	NULL // unused client data
	283	);
	284
	285	if ( !m_hwndBuddy )
	286	{
	287	wxLogLastError(wxT("CreateWindow(buddy text window)"));
	288
	289	return FALSE;
	290	}
	291
	292
	293	// create the spin button
	294	if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
	295	{
	296	return FALSE;
	297	}
	298
	299	SetRange(min, max);
	300	SetValue(initial);
	301
	302	// subclass the text ctrl to be able to intercept some events
	303	m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
	304	::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
	305	::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);
	306
	307	// should have the same font as the other controls
	308	SetFont(GetParent()->GetFont());
	309
	310	// set the size of the text window - can do it only now, because we
	311	// couldn't call DoGetBestSize() before as font wasn't set
	312	if ( sizeText.y <= 0 )
	313	{
	314	int cx, cy;
	315	wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
	316
	317	sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
	318	}
	319
	320	DoMoveWindow(pos.x, pos.y,
	321	sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);
	322
	323	(void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
	324
	325	// associate the text window with the spin button
	326	(void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
	327
	328	if ( !value.IsEmpty() )
	329	{
	330	SetValue(value);
	331	}
	332
	333	// do it after finishing with m_hwndBuddy creation to avoid generating
	334	// initial wxEVT_COMMAND_TEXT_UPDATED message
	335	ms_allSpins.Add(this);
	336
	337	return TRUE;
	338	}
	339
	340	wxSpinCtrl::~wxSpinCtrl()
	341	{
	342	ms_allSpins.Remove(this);
	343
	344	// This removes spurious memory leak reporting
	345	if (ms_allSpins.GetCount() == 0)
	346	ms_allSpins.Clear();
	347
	348	// destroy the buddy window because this pointer which wxBuddyTextWndProc
	349	// uses will not soon be valid any more
	350	::DestroyWindow(GetBuddyHwnd());
	351	}
	352
	353	// ----------------------------------------------------------------------------
	354	// wxTextCtrl-like methods
	355	// ----------------------------------------------------------------------------
	356
	357	void wxSpinCtrl::SetValue(const wxString& text)
	358	{
	359	if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
	360	{
	361	wxLogLastError(wxT("SetWindowText(buddy)"));
	362	}
	363	}
	364
	365	int wxSpinCtrl::GetValue() const
	366	{
	367	wxString val = wxGetWindowText(m_hwndBuddy);
	368
	369	long n;
	370	if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
	371	n = INT_MIN;
	372
	373	return n;
	374	}
	375
	376	void wxSpinCtrl::SetSelection(long from, long to)
	377	{
	378	// if from and to are both -1, it means (in wxWindows) that all text should
	379	// be selected - translate into Windows convention
	380	if ( (from == -1) && (to == -1) )
	381	{
	382	from = 0;
	383	}
	384
	385	::SendMessage((HWND)m_hwndBuddy, EM_SETSEL, (WPARAM)from, (LPARAM)to);
	386	}
	387
	388	// ----------------------------------------------------------------------------
	389	// forward some methods to subcontrols
	390	// ----------------------------------------------------------------------------
	391
	392	bool wxSpinCtrl::SetFont(const wxFont& font)
	393	{
	394	if ( !wxWindowBase::SetFont(font) )
	395	{
	396	// nothing to do
	397	return FALSE;
	398	}
	399
	400	WXHANDLE hFont = GetFont().GetResourceHandle();
	401	(void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
	402
	403	return TRUE;
	404	}
	405
	406	bool wxSpinCtrl::Show(bool show)
	407	{
	408	if ( !wxControl::Show(show) )
	409	{
	410	return FALSE;
	411	}
	412
	413	::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
	414
	415	return TRUE;
	416	}
	417
	418	bool wxSpinCtrl::Enable(bool enable)
	419	{
	420	if ( !wxControl::Enable(enable) )
	421	{
	422	return FALSE;
	423	}
	424
	425	::EnableWindow(GetBuddyHwnd(), enable);
	426
	427	return TRUE;
	428	}
	429
	430	void wxSpinCtrl::SetFocus()
	431	{
	432	::SetFocus(GetBuddyHwnd());
	433	}
	434
	435	// ----------------------------------------------------------------------------
	436	// event processing
	437	// ----------------------------------------------------------------------------
	438
	439	void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
	440	{
	441	wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
	442	event.SetEventObject(this);
	443	event.SetInt(eventSpin.GetPosition());
	444
	445	(void)GetEventHandler()->ProcessEvent(event);
	446
	447	if ( eventSpin.GetSkipped() )
	448	{
	449	event.Skip();
	450	}
	451	}
	452
	453	// ----------------------------------------------------------------------------
	454	// size calculations
	455	// ----------------------------------------------------------------------------
	456
	457	wxSize wxSpinCtrl::DoGetBestSize() const
	458	{
	459	wxSize sizeBtn = wxSpinButton::DoGetBestSize();
	460	sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
	461
	462	int y;
	463	wxGetCharSize(GetHWND(), NULL, &y, &GetFont());
	464	y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
	465
	466	if ( sizeBtn.y < y )
	467	{
	468	// make the text tall enough
	469	sizeBtn.y = y;
	470	}
	471
	472	return sizeBtn;
	473	}
	474
	475	void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
	476	{
	477	int widthBtn = wxSpinButton::DoGetBestSize().x;
	478	int widthText = width - widthBtn - MARGIN_BETWEEN;
	479	if ( widthText <= 0 )
	480	{
	481	wxLogDebug(_T("not enough space for wxSpinCtrl!"));
	482	}
	483
	484	if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
	485	{
	486	wxLogLastError(wxT("MoveWindow(buddy)"));
	487	}
	488
	489	x += widthText + MARGIN_BETWEEN;
	490	if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
	491	{
	492	wxLogLastError(wxT("MoveWindow"));
	493	}
	494	}
	495
	496	// get total size of the control
	497	void wxSpinCtrl::DoGetSize(int x, int y) const
	498	{
	499	RECT spinrect, textrect, ctrlrect;
	500	GetWindowRect(GetHwnd(), &spinrect);
	501	GetWindowRect(GetBuddyHwnd(), &textrect);
	502	UnionRect(&ctrlrect,&textrect, &spinrect);
	503
	504	if ( x )
	505	*x = ctrlrect.right - ctrlrect.left;
	506	if ( y )
	507	*y = ctrlrect.bottom - ctrlrect.top;
	508	}
	509
	510	void wxSpinCtrl::DoGetPosition(int x, int y) const
	511	{
	512	// hack: pretend that our HWND is the text control just for a moment
	513	WXHWND hWnd = GetHWND();
	514	wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
	515
	516	wxSpinButton::DoGetPosition(x, y);
	517
	518	wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
	519	}
	520
	521	#endif // __WIN95__
	522
	523	#endif
	524	// wxUSE_SPINCTRL
	525