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(__TWIN32__)) && !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_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 ones only so far) to the spin ctrl
    switch ( message )
    {
        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.KeyCode() )
    {
        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();
}

// ----------------------------------------------------------------------------
// 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;
    SetWindowStyle(style);

    // 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;

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

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

    bool want3D;
    WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
    int msStyle = WS_CHILD;

    // Even with extended styles, need to combine with WS_BORDER for them to
    // look right.
    if ( want3D || wxStyleHasBorder(style) )
        msStyle |= WS_BORDER;

    if ( style & wxCLIP_SIBLINGS )
        msStyle |= WS_CLIPSIBLINGS;

    // create the text window
    m_hwndBuddy = (WXHWND)::CreateWindowEx
                    (
                     exStyle,       // sunken border
                     _T("EDIT"),             // window class
                     NULL,                   // no window title
                     msStyle /* | WS_CLIPSIBLINGS */,   // 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;
    }

    // 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;
}

// ----------------------------------------------------------------------------
// 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(__TWIN32__)) && !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	EVT_SPIN(-1, wxSpinCtrl::OnSpinChange)
	58	END_EVENT_TABLE()
	59
	60	#define GetBuddyHwnd() (HWND)(m_hwndBuddy)
	61
	62	// ----------------------------------------------------------------------------
	63	// constants
	64	// ----------------------------------------------------------------------------
	65
	66	// the margin between the up-down control and its buddy (can be arbitrary,
	67	// choose what you like - or may be decide during run-time depending on the
	68	// font size?)
	69	static const int MARGIN_BETWEEN = 1;
	70
	71	// ============================================================================
	72	// implementation
	73	// ============================================================================
	74
	75	wxArraySpins wxSpinCtrl::ms_allSpins;
	76
	77	// ----------------------------------------------------------------------------
	78	// wnd proc for the buddy text ctrl
	79	// ----------------------------------------------------------------------------
	80
	81	LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
	82	UINT message,
	83	WPARAM wParam,
	84	LPARAM lParam)
	85	{
	86	wxSpinCtrl spin = (wxSpinCtrl )::GetWindowLong(hwnd, GWL_USERDATA);
	87
	88	// forward some messages (the key ones only so far) to the spin ctrl
	89	switch ( message )
	90	{
	91	case WM_CHAR:
	92	case WM_DEADCHAR:
	93	case WM_KEYUP:
	94	case WM_KEYDOWN:
	95	spin->MSWWindowProc(message, wParam, lParam);
	96
	97	// The control may have been deleted at this point, so check.
	98	if (!(::IsWindow(hwnd) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
	99	return 0;
	100	break;
	101
	102	case WM_GETDLGCODE:
	103	// we want to get WXK_RETURN in order to generate the event for it
	104	return DLGC_WANTCHARS;
	105	}
	106
	107	return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
	108	hwnd, message, wParam, lParam);
	109	}
	110
	111	/* static */
	112	wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
	113	{
	114	wxSpinCtrl spin = (wxSpinCtrl )::GetWindowLong((HWND)hwndBuddy,
	115	GWL_USERDATA);
	116
	117	int i = ms_allSpins.Index(spin);
	118
	119	if ( i == wxNOT_FOUND )
	120	return NULL;
	121
	122	// sanity check
	123	wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
	124	_T("wxSpinCtrl has incorrect buddy HWND!") );
	125
	126	return spin;
	127	}
	128
	129	// process a WM_COMMAND generated by the buddy text control
	130	bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
	131	{
	132	switch (cmd)
	133	{
	134	case EN_CHANGE:
	135	{
	136	wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
	137	event.SetEventObject(this);
	138	wxString val = wxGetWindowText(m_hwndBuddy);
	139	event.SetString(val);
	140	event.SetInt(GetValue());
	141	return GetEventHandler()->ProcessEvent(event);
	142	}
	143	case EN_SETFOCUS:
	144	case EN_KILLFOCUS:
	145	{
	146	wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
	147	: wxEVT_SET_FOCUS,
	148	m_windowId);
	149	event.SetEventObject( this );
	150	return GetEventHandler()->ProcessEvent(event);
	151	}
	152	default:
	153	break;
	154	}
	155
	156	// not processed
	157	return FALSE;
	158	}
	159
	160	void wxSpinCtrl::OnChar(wxKeyEvent& event)
	161	{
	162	switch ( event.KeyCode() )
	163	{
	164	case WXK_RETURN:
	165	{
	166	wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
	167	InitCommandEvent(event);
	168	wxString val = wxGetWindowText(m_hwndBuddy);
	169	event.SetString(val);
	170	event.SetInt(GetValue());
	171	if ( GetEventHandler()->ProcessEvent(event) )
	172	return;
	173	break;
	174	}
	175
	176	case WXK_TAB:
	177	// always produce navigation event - even if we process TAB
	178	// ourselves the fact that we got here means that the user code
	179	// decided to skip processing of this TAB - probably to let it
	180	// do its default job.
	181	{
	182	wxNavigationKeyEvent eventNav;
	183	eventNav.SetDirection(!event.ShiftDown());
	184	eventNav.SetWindowChange(event.ControlDown());
	185	eventNav.SetEventObject(this);
	186
	187	if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
	188	return;
	189	}
	190	break;
	191	}
	192
	193	// no, we didn't process it
	194	event.Skip();
	195	}
	196
	197	// ----------------------------------------------------------------------------
	198	// construction
	199	// ----------------------------------------------------------------------------
	200
	201	bool wxSpinCtrl::Create(wxWindow *parent,
	202	wxWindowID id,
	203	const wxString& value,
	204	const wxPoint& pos,
	205	const wxSize& size,
	206	long style,
	207	int min, int max, int initial,
	208	const wxString& name)
	209	{
	210	// before using DoGetBestSize(), have to set style to let the base class
	211	// know whether this is a horizontal or vertical control (we're always
	212	// vertical)
	213	style \|= wxSP_VERTICAL;
	214	SetWindowStyle(style);
	215
	216	// calculate the sizes: the size given is the toal size for both controls
	217	// and we need to fit them both in the given width (height is the same)
	218	wxSize sizeText(size), sizeBtn(size);
	219	sizeBtn.x = wxSpinButton::DoGetBestSize().x;
	220	if ( sizeText.x <= 0 )
	221	{
	222	// DEFAULT_ITEM_WIDTH is the default width for the text control
	223	sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
	224	}
	225
	226	sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
	227	if ( sizeText.x <= 0 )
	228	{
	229	wxLogDebug(_T("not enough space for wxSpinCtrl!"));
	230	}
	231
	232	wxPoint posBtn(pos);
	233	posBtn.x += sizeText.x + MARGIN_BETWEEN;
	234
	235	// create the spin button
	236	if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
	237	{
	238	return FALSE;
	239	}
	240
	241	SetRange(min, max);
	242	SetValue(initial);
	243
	244	bool want3D;
	245	WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
	246	int msStyle = WS_CHILD;
	247
	248	// Even with extended styles, need to combine with WS_BORDER for them to
	249	// look right.
	250	if ( want3D \|\| wxStyleHasBorder(style) )
	251	msStyle \|= WS_BORDER;
	252
	253	if ( style & wxCLIP_SIBLINGS )
	254	msStyle \|= WS_CLIPSIBLINGS;
	255
	256	// create the text window
	257	m_hwndBuddy = (WXHWND)::CreateWindowEx
	258	(
	259	exStyle, // sunken border
	260	_T("EDIT"), // window class
	261	NULL, // no window title
	262	msStyle /* \| WS_CLIPSIBLINGS */, // style (will be shown later)
	263	pos.x, pos.y, // position
	264	0, 0, // size (will be set later)
	265	GetHwndOf(parent), // parent
	266	(HMENU)-1, // control id
	267	wxGetInstance(), // app instance
	268	NULL // unused client data
	269	);
	270
	271	if ( !m_hwndBuddy )
	272	{
	273	wxLogLastError(wxT("CreateWindow(buddy text window)"));
	274
	275	return FALSE;
	276	}
	277
	278	// subclass the text ctrl to be able to intercept some events
	279	m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
	280	::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
	281	::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);
	282
	283	// should have the same font as the other controls
	284	SetFont(GetParent()->GetFont());
	285
	286	// set the size of the text window - can do it only now, because we
	287	// couldn't call DoGetBestSize() before as font wasn't set
	288	if ( sizeText.y <= 0 )
	289	{
	290	int cx, cy;
	291	wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
	292
	293	sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
	294	}
	295
	296	DoMoveWindow(pos.x, pos.y,
	297	sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);
	298
	299	(void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
	300
	301	// associate the text window with the spin button
	302	(void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
	303
	304	if ( !value.IsEmpty() )
	305	{
	306	SetValue(value);
	307	}
	308
	309	// do it after finishing with m_hwndBuddy creation to avoid generating
	310	// initial wxEVT_COMMAND_TEXT_UPDATED message
	311	ms_allSpins.Add(this);
	312
	313	return TRUE;
	314	}
	315
	316	wxSpinCtrl::~wxSpinCtrl()
	317	{
	318	ms_allSpins.Remove(this);
	319
	320	// This removes spurious memory leak reporting
	321	if (ms_allSpins.GetCount() == 0)
	322	ms_allSpins.Clear();
	323
	324	// destroy the buddy window because this pointer which wxBuddyTextWndProc
	325	// uses will not soon be valid any more
	326	::DestroyWindow(GetBuddyHwnd());
	327	}
	328
	329	// ----------------------------------------------------------------------------
	330	// wxTextCtrl-like methods
	331	// ----------------------------------------------------------------------------
	332
	333	void wxSpinCtrl::SetValue(const wxString& text)
	334	{
	335	if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
	336	{
	337	wxLogLastError(wxT("SetWindowText(buddy)"));
	338	}
	339	}
	340
	341	int wxSpinCtrl::GetValue() const
	342	{
	343	wxString val = wxGetWindowText(m_hwndBuddy);
	344
	345	long n;
	346	if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
	347	n = INT_MIN;
	348
	349	return n;
	350	}
	351
	352	// ----------------------------------------------------------------------------
	353	// forward some methods to subcontrols
	354	// ----------------------------------------------------------------------------
	355
	356	bool wxSpinCtrl::SetFont(const wxFont& font)
	357	{
	358	if ( !wxWindowBase::SetFont(font) )
	359	{
	360	// nothing to do
	361	return FALSE;
	362	}
	363
	364	WXHANDLE hFont = GetFont().GetResourceHandle();
	365	(void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
	366
	367	return TRUE;
	368	}
	369
	370	bool wxSpinCtrl::Show(bool show)
	371	{
	372	if ( !wxControl::Show(show) )
	373	{
	374	return FALSE;
	375	}
	376
	377	::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
	378
	379	return TRUE;
	380	}
	381
	382	bool wxSpinCtrl::Enable(bool enable)
	383	{
	384	if ( !wxControl::Enable(enable) )
	385	{
	386	return FALSE;
	387	}
	388
	389	::EnableWindow(GetBuddyHwnd(), enable);
	390
	391	return TRUE;
	392	}
	393
	394	void wxSpinCtrl::SetFocus()
	395	{
	396	::SetFocus(GetBuddyHwnd());
	397	}
	398
	399	// ----------------------------------------------------------------------------
	400	// event processing
	401	// ----------------------------------------------------------------------------
	402
	403	void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
	404	{
	405	wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
	406	event.SetEventObject(this);
	407	event.SetInt(eventSpin.GetPosition());
	408
	409	(void)GetEventHandler()->ProcessEvent(event);
	410
	411	if ( eventSpin.GetSkipped() )
	412	{
	413	event.Skip();
	414	}
	415	}
	416
	417	// ----------------------------------------------------------------------------
	418	// size calculations
	419	// ----------------------------------------------------------------------------
	420
	421	wxSize wxSpinCtrl::DoGetBestSize() const
	422	{
	423	wxSize sizeBtn = wxSpinButton::DoGetBestSize();
	424	sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
	425
	426	int y;
	427	wxGetCharSize(GetHWND(), NULL, &y, &GetFont());
	428	y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
	429
	430	if ( sizeBtn.y < y )
	431	{
	432	// make the text tall enough
	433	sizeBtn.y = y;
	434	}
	435
	436	return sizeBtn;
	437	}
	438
	439	void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
	440	{
	441	int widthBtn = wxSpinButton::DoGetBestSize().x;
	442	int widthText = width - widthBtn - MARGIN_BETWEEN;
	443	if ( widthText <= 0 )
	444	{
	445	wxLogDebug(_T("not enough space for wxSpinCtrl!"));
	446	}
	447
	448	if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
	449	{
	450	wxLogLastError(wxT("MoveWindow(buddy)"));
	451	}
	452
	453	x += widthText + MARGIN_BETWEEN;
	454	if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
	455	{
	456	wxLogLastError(wxT("MoveWindow"));
	457	}
	458	}
	459
	460	// get total size of the control
	461	void wxSpinCtrl::DoGetSize(int x, int y) const
	462	{
	463	RECT spinrect, textrect, ctrlrect;
	464	GetWindowRect(GetHwnd(), &spinrect);
	465	GetWindowRect(GetBuddyHwnd(), &textrect);
	466	UnionRect(&ctrlrect,&textrect, &spinrect);
	467
	468	if ( x )
	469	*x = ctrlrect.right - ctrlrect.left;
	470	if ( y )
	471	*y = ctrlrect.bottom - ctrlrect.top;
	472	}
	473
	474	void wxSpinCtrl::DoGetPosition(int x, int y) const
	475	{
	476	// hack: pretend that our HWND is the text control just for a moment
	477	WXHWND hWnd = GetHWND();
	478	wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
	479
	480	wxSpinButton::DoGetPosition(x, y);
	481
	482	wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
	483	}
	484
	485	#endif // __WIN95__
	486
	487	#endif
	488	// wxUSE_SPINCTRL
	489