src/msw/checklst.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        msw/checklst.cpp
// Purpose:     implementation of wxCheckListBox class
// Author:      Vadim Zeitlin
// Modified by:
// Created:     16.11.97
// RCS-ID:      $Id$
// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

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

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

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "checklst.h"
#endif

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

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#if wxUSE_CHECKLISTBOX && wxUSE_OWNER_DRAWN

#ifndef WX_PRECOMP
    #include "wx/object.h"
    #include "wx/colour.h"
    #include "wx/font.h"
    #include "wx/bitmap.h"
    #include "wx/window.h"
    #include "wx/listbox.h"
    #include "wx/dcmemory.h"

    #include "wx/settings.h"

    #include "wx/log.h"
#endif

#include "wx/ownerdrw.h"
#include "wx/checklst.h"

#include "wx/msw/wrapwin.h"
#include <windowsx.h>

#include "wx/msw/private.h"

// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------

// get item (converted to right type)
#define GetItem(n)    ((wxCheckListBoxItem *)(GetItem(n)))

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


#if wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxCheckListBoxStyle )

wxBEGIN_FLAGS( wxCheckListBoxStyle )
    // 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(wxLB_SINGLE)
    wxFLAGS_MEMBER(wxLB_MULTIPLE)
    wxFLAGS_MEMBER(wxLB_EXTENDED)
    wxFLAGS_MEMBER(wxLB_HSCROLL)
    wxFLAGS_MEMBER(wxLB_ALWAYS_SB)
    wxFLAGS_MEMBER(wxLB_NEEDED_SB)
    wxFLAGS_MEMBER(wxLB_SORT)
    wxFLAGS_MEMBER(wxLB_OWNERDRAW)

wxEND_FLAGS( wxCheckListBoxStyle )

IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckListBox, wxListBox,"wx/checklst.h")

wxBEGIN_PROPERTIES_TABLE(wxCheckListBox)
    wxEVENT_PROPERTY( Toggle , wxEVT_COMMAND_CHECKLISTBOX_TOGGLED , wxCommandEvent )
    wxPROPERTY_FLAGS( WindowStyle , wxCheckListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , wxLB_OWNERDRAW /*flags*/ , wxT("Helpstring") , wxT("group")) // style
wxEND_PROPERTIES_TABLE()

wxBEGIN_HANDLERS_TABLE(wxCheckListBox)
wxEND_HANDLERS_TABLE()

wxCONSTRUCTOR_4( wxCheckListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )

#else
IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
#endif

// ----------------------------------------------------------------------------
// declaration and implementation of wxCheckListBoxItem class
// ----------------------------------------------------------------------------

class wxCheckListBoxItem : public wxOwnerDrawn
{
friend class WXDLLEXPORT wxCheckListBox;
public:
  // ctor
  wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);

  // drawing functions
  virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);

  // simple accessors and operations
  bool IsChecked() const { return m_bChecked; }

  void Check(bool bCheck);
  void Toggle() { Check(!IsChecked()); }

  void SendEvent();

private:
  bool            m_bChecked;
  wxCheckListBox *m_pParent;
  size_t          m_nIndex;

  DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
};

wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
                  : wxOwnerDrawn(wxEmptyString, true)   // checkable
{
  m_bChecked = false;
  m_pParent  = pParent;
  m_nIndex   = nIndex;

  // we don't initialize m_nCheckHeight/Width vars because it's
  // done in OnMeasure while they are used only in OnDraw and we
  // know that there will always be OnMeasure before OnDraw

  // fix appearance for check list boxes: they don't look quite the same as
  // menu icons
  SetMarginWidth(::GetSystemMetrics(SM_CXMENUCHECK) -
                    2*wxSystemSettings::GetMetric(wxSYS_EDGE_X) + 1);
  SetBackgroundColour(pParent->GetBackgroundColour());
}

bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
                                    wxODAction act, wxODStatus stat)
{
    // first draw the label
    if ( IsChecked() )
        stat = (wxOwnerDrawn::wxODStatus)(stat | wxOwnerDrawn::wxODChecked);

    if ( !wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) )
        return false;


    // now draw the check mark part
    size_t nCheckWidth  = GetDefaultMarginWidth(),
           nCheckHeight = m_pParent->GetItemHeight();

    int x = rc.GetX(),
        y = rc.GetY();

    HDC hdc = (HDC)dc.GetHDC();

    // create pens, brushes &c
    COLORREF colBg = ::GetSysColor(COLOR_WINDOW);
    AutoHPEN hpenBack(colBg),
             hpenGray(RGB(0xc0, 0xc0, 0xc0));

    SelectInHDC selPen(hdc, (HGDIOBJ)hpenBack);
    AutoHBRUSH hbrBack(colBg);
    SelectInHDC selBrush(hdc, hbrBack);

    // erase the background: it could have been filled with the selected colour
    Rectangle(hdc, x, y, x + nCheckWidth + 1, rc.GetBottom() + 1);

    // shift check mark 1 pixel to the right, looks better like this
    x++;

    if ( IsChecked() )
    {
        // first create a monochrome bitmap in a memory DC
        MemoryHDC hdcMem(hdc);
        MonoBitmap hbmpCheck(nCheckWidth, nCheckHeight);
        SelectInHDC selBmp(hdcMem, hbmpCheck);

        // then draw a check mark into it
        RECT rect = { 0, 0, nCheckWidth, nCheckHeight };
        ::DrawFrameControl(hdcMem, &rect,
#ifdef __WXWINCE__
                           DFC_BUTTON, DFCS_BUTTONCHECK
#else
                           DFC_MENU, DFCS_MENUCHECK
#endif
                           );

        // finally copy it to screen DC
        ::BitBlt(hdc, x, y, nCheckWidth, nCheckHeight, hdcMem, 0, 0, SRCCOPY);
    }

    // now we draw the smaller rectangle
    y++;
    nCheckWidth  -= 2;
    nCheckHeight -= 2;

    // draw hollow gray rectangle
    (void)::SelectObject(hdc, (HGDIOBJ)hpenGray);

    SelectInHDC selBrush2(hdc, ::GetStockObject(NULL_BRUSH));
    Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);

    return true;
}

// change the state of the item and redraw it
void wxCheckListBoxItem::Check(bool check)
{
    m_bChecked = check;

    // index may be changed because new items were added/deleted
    if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
    {
        // update it
        int index = m_pParent->GetItemIndex(this);

        wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );

        m_nIndex = (size_t)index;
    }

    HWND hwndListbox = (HWND)m_pParent->GetHWND();

    RECT rcUpdate;

    if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
                       m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
    {
        wxLogDebug(wxT("LB_GETITEMRECT failed"));
    }

    ::InvalidateRect(hwndListbox, &rcUpdate, FALSE);
}

// send an "item checked" event
void wxCheckListBoxItem::SendEvent()
{
    wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
    event.SetInt(m_nIndex);
    event.SetEventObject(m_pParent);
    m_pParent->ProcessCommand(event);
}

// ----------------------------------------------------------------------------
// implementation of wxCheckListBox class
// ----------------------------------------------------------------------------

// define event table
// ------------------
BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
  EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
  EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
END_EVENT_TABLE()

// control creation
// ----------------

// def ctor: use Create() to really create the control
wxCheckListBox::wxCheckListBox()
{
}

// ctor which creates the associated control
wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
                               const wxPoint& pos, const wxSize& size,
                               int nStrings, const wxString choices[],
                               long style, const wxValidator& val,
                               const wxString& name)
{
    Create(parent, id, pos, size, nStrings, choices, style, val, name);
}

wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
                               const wxPoint& pos, const wxSize& size,
                               const wxArrayString& choices,
                               long style, const wxValidator& val,
                               const wxString& name)
{
    Create(parent, id, pos, size, choices, style, val, name);
}

bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
                            const wxPoint& pos, const wxSize& size,
                            int n, const wxString choices[],
                            long style,
                            const wxValidator& validator, const wxString& name)
{
    return wxListBox::Create(parent, id, pos, size, n, choices,
                             style | wxLB_OWNERDRAW, validator, name);
}

bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
                            const wxPoint& pos, const wxSize& size,
                            const wxArrayString& choices,
                            long style,
                            const wxValidator& validator, const wxString& name)
{
    return wxListBox::Create(parent, id, pos, size, choices,
                             style | wxLB_OWNERDRAW, validator, name);
}

// misc overloaded methods
// -----------------------

void wxCheckListBox::Delete(int N)
{
    wxCHECK_RET( N >= 0 && N < m_noItems,
                 wxT("invalid index in wxListBox::Delete") );

    wxListBox::Delete(N);

    // free memory
    delete m_aItems[N];

    m_aItems.RemoveAt(N);
}

bool wxCheckListBox::SetFont( const wxFont &font )
{
    size_t i;
    for ( i = 0; i < m_aItems.GetCount(); i++ )
        m_aItems[i]->SetFont(font);

    wxListBox::SetFont(font);

    return true;
}

// create/retrieve item
// --------------------

// create a check list box item
wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
{
  wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
  return pItem;
}

// return item size
// ----------------
bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
{
  if ( wxListBox::MSWOnMeasure(item) ) {
    MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;

    // save item height
    m_nItemHeight = pStruct->itemHeight;

    // add place for the check mark
    pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();

    return true;
  }

  return false;
}

// check items
// -----------

bool wxCheckListBox::IsChecked(size_t uiIndex) const
{
    wxCHECK_MSG( uiIndex < (size_t)GetCount(), false, _T("bad wxCheckListBox index") );

    return GetItem(uiIndex)->IsChecked();
}

void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
{
    wxCHECK_RET( uiIndex < (size_t)GetCount(), _T("bad wxCheckListBox index") );

    GetItem(uiIndex)->Check(bCheck);
}

// process events
// --------------

void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
{
    // what do we do?
    enum
    {
        None,
        Toggle,
        Set,
        Clear
    } oper;

    switch ( event.GetKeyCode() )
    {
        case WXK_SPACE:
            oper = Toggle;
            break;

        case WXK_NUMPAD_ADD:
        case '+':
            oper = Set;
            break;

        case WXK_NUMPAD_SUBTRACT:
        case '-':
            oper = Clear;
            break;

        default:
            oper = None;
    }

    if ( oper != None )
    {
        wxArrayInt selections;
        int count = 0;
        if ( HasMultipleSelection() )
        {
            count = GetSelections(selections);
        }
        else
        {
            int sel = GetSelection();
            if (sel != -1)
            {
                count = 1;
                selections.Add(sel);
            }
        }

        for ( int i = 0; i < count; i++ )
        {
            wxCheckListBoxItem *item = GetItem(selections[i]);
            if ( !item )
            {
                wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
                continue;
            }

            switch ( oper )
            {
                case Toggle:
                    item->Toggle();
                    break;

                case Set:
                case Clear:
                    item->Check( oper == Set );
                    break;

                default:
                    wxFAIL_MSG( _T("what should this key do?") );
            }

            // we should send an event as this has been done by the user and
            // not by the program
            item->SendEvent();
        }
    }
    else // nothing to do
    {
        event.Skip();
    }
}

void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
{
  // clicking on the item selects it, clicking on the checkmark toggles
  if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() ) {
    int nItem = HitTest(event.GetX(), event.GetY());

    if ( nItem != wxNOT_FOUND ) {
      wxCheckListBoxItem *item = GetItem(nItem);
      item->Toggle();
      item->SendEvent();
    }
    //else: it's not an error, just click outside of client zone
  }
  else {
    // implement default behaviour: clicking on the item selects it
    event.Skip();
  }
}

int wxCheckListBox::DoHitTestItem(wxCoord x, wxCoord y) const
{
    int nItem = (int)::SendMessage
                             (
                              (HWND)GetHWND(),
                              LB_ITEMFROMPOINT,
                              0,
                              MAKELPARAM(x, y)
                             );

  return nItem >= m_noItems ? wxNOT_FOUND : nItem;
}


wxSize wxCheckListBox::DoGetBestSize() const
{
    wxSize best = wxListBox::DoGetBestSize();
    best.x += wxOwnerDrawn::GetDefaultMarginWidth();  // add room for the checkbox
    CacheBestSize(best);
    return best;
}

#endif
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: msw/checklst.cpp
	3	// Purpose: implementation of wxCheckListBox class
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 16.11.97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
	9	// Licence: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	21	#pragma implementation "checklst.h"
	22	#endif
	23
	24	// For compilers that support precompilation, includes "wx.h".
	25	#include "wx/wxprec.h"
	26
	27	#ifdef __BORLANDC__
	28	#pragma hdrstop
	29	#endif
	30
	31	#if wxUSE_CHECKLISTBOX && wxUSE_OWNER_DRAWN
	32
	33	#ifndef WX_PRECOMP
	34	#include "wx/object.h"
	35	#include "wx/colour.h"
	36	#include "wx/font.h"
	37	#include "wx/bitmap.h"
	38	#include "wx/window.h"
	39	#include "wx/listbox.h"
	40	#include "wx/dcmemory.h"
	41
	42	#include "wx/settings.h"
	43
	44	#include "wx/log.h"
	45	#endif
	46
	47	#include "wx/ownerdrw.h"
	48	#include "wx/checklst.h"
	49
	50	#include "wx/msw/wrapwin.h"
	51	#include <windowsx.h>
	52
	53	#include "wx/msw/private.h"
	54
	55	// ----------------------------------------------------------------------------
	56	// private functions
	57	// ----------------------------------------------------------------------------
	58
	59	// get item (converted to right type)
	60	#define GetItem(n) ((wxCheckListBoxItem *)(GetItem(n)))
	61
	62	// ============================================================================
	63	// implementation
	64	// ============================================================================
	65
	66
	67	#if wxUSE_EXTENDED_RTTI
	68	WX_DEFINE_FLAGS( wxCheckListBoxStyle )
	69
	70	wxBEGIN_FLAGS( wxCheckListBoxStyle )
	71	// new style border flags, we put them first to
	72	// use them for streaming out
	73	wxFLAGS_MEMBER(wxBORDER_SIMPLE)
	74	wxFLAGS_MEMBER(wxBORDER_SUNKEN)
	75	wxFLAGS_MEMBER(wxBORDER_DOUBLE)
	76	wxFLAGS_MEMBER(wxBORDER_RAISED)
	77	wxFLAGS_MEMBER(wxBORDER_STATIC)
	78	wxFLAGS_MEMBER(wxBORDER_NONE)
	79
	80	// old style border flags
	81	wxFLAGS_MEMBER(wxSIMPLE_BORDER)
	82	wxFLAGS_MEMBER(wxSUNKEN_BORDER)
	83	wxFLAGS_MEMBER(wxDOUBLE_BORDER)
	84	wxFLAGS_MEMBER(wxRAISED_BORDER)
	85	wxFLAGS_MEMBER(wxSTATIC_BORDER)
	86	wxFLAGS_MEMBER(wxBORDER)
	87
	88	// standard window styles
	89	wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
	90	wxFLAGS_MEMBER(wxCLIP_CHILDREN)
	91	wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
	92	wxFLAGS_MEMBER(wxWANTS_CHARS)
	93	wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
	94	wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
	95	wxFLAGS_MEMBER(wxVSCROLL)
	96	wxFLAGS_MEMBER(wxHSCROLL)
	97
	98	wxFLAGS_MEMBER(wxLB_SINGLE)
	99	wxFLAGS_MEMBER(wxLB_MULTIPLE)
	100	wxFLAGS_MEMBER(wxLB_EXTENDED)
	101	wxFLAGS_MEMBER(wxLB_HSCROLL)
	102	wxFLAGS_MEMBER(wxLB_ALWAYS_SB)
	103	wxFLAGS_MEMBER(wxLB_NEEDED_SB)
	104	wxFLAGS_MEMBER(wxLB_SORT)
	105	wxFLAGS_MEMBER(wxLB_OWNERDRAW)
	106
	107	wxEND_FLAGS( wxCheckListBoxStyle )
	108
	109	IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckListBox, wxListBox,"wx/checklst.h")
	110
	111	wxBEGIN_PROPERTIES_TABLE(wxCheckListBox)
	112	wxEVENT_PROPERTY( Toggle , wxEVT_COMMAND_CHECKLISTBOX_TOGGLED , wxCommandEvent )
	113	wxPROPERTY_FLAGS( WindowStyle , wxCheckListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , wxLB_OWNERDRAW /flags/ , wxT("Helpstring") , wxT("group")) // style
	114	wxEND_PROPERTIES_TABLE()
	115
	116	wxBEGIN_HANDLERS_TABLE(wxCheckListBox)
	117	wxEND_HANDLERS_TABLE()
	118
	119	wxCONSTRUCTOR_4( wxCheckListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )
	120
	121	#else
	122	IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
	123	#endif
	124
	125	// ----------------------------------------------------------------------------
	126	// declaration and implementation of wxCheckListBoxItem class
	127	// ----------------------------------------------------------------------------
	128
	129	class wxCheckListBoxItem : public wxOwnerDrawn
	130	{
	131	friend class WXDLLEXPORT wxCheckListBox;
	132	public:
	133	// ctor
	134	wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);
	135
	136	// drawing functions
	137	virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
	138
	139	// simple accessors and operations
	140	bool IsChecked() const { return m_bChecked; }
	141
	142	void Check(bool bCheck);
	143	void Toggle() { Check(!IsChecked()); }
	144
	145	void SendEvent();
	146
	147	private:
	148	bool m_bChecked;
	149	wxCheckListBox *m_pParent;
	150	size_t m_nIndex;
	151
	152	DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
	153	};
	154
	155	wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
	156	: wxOwnerDrawn(wxEmptyString, true) // checkable
	157	{
	158	m_bChecked = false;
	159	m_pParent = pParent;
	160	m_nIndex = nIndex;
	161
	162	// we don't initialize m_nCheckHeight/Width vars because it's
	163	// done in OnMeasure while they are used only in OnDraw and we
	164	// know that there will always be OnMeasure before OnDraw
	165
	166	// fix appearance for check list boxes: they don't look quite the same as
	167	// menu icons
	168	SetMarginWidth(::GetSystemMetrics(SM_CXMENUCHECK) -
	169	2*wxSystemSettings::GetMetric(wxSYS_EDGE_X) + 1);
	170	SetBackgroundColour(pParent->GetBackgroundColour());
	171	}
	172
	173	bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
	174	wxODAction act, wxODStatus stat)
	175	{
	176	// first draw the label
	177	if ( IsChecked() )
	178	stat = (wxOwnerDrawn::wxODStatus)(stat \| wxOwnerDrawn::wxODChecked);
	179
	180	if ( !wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) )
	181	return false;
	182
	183
	184	// now draw the check mark part
	185	size_t nCheckWidth = GetDefaultMarginWidth(),
	186	nCheckHeight = m_pParent->GetItemHeight();
	187
	188	int x = rc.GetX(),
	189	y = rc.GetY();
	190
	191	HDC hdc = (HDC)dc.GetHDC();
	192
	193	// create pens, brushes &c
	194	COLORREF colBg = ::GetSysColor(COLOR_WINDOW);
	195	AutoHPEN hpenBack(colBg),
	196	hpenGray(RGB(0xc0, 0xc0, 0xc0));
	197
	198	SelectInHDC selPen(hdc, (HGDIOBJ)hpenBack);
	199	AutoHBRUSH hbrBack(colBg);
	200	SelectInHDC selBrush(hdc, hbrBack);
	201
	202	// erase the background: it could have been filled with the selected colour
	203	Rectangle(hdc, x, y, x + nCheckWidth + 1, rc.GetBottom() + 1);
	204
	205	// shift check mark 1 pixel to the right, looks better like this
	206	x++;
	207
	208	if ( IsChecked() )
	209	{
	210	// first create a monochrome bitmap in a memory DC
	211	MemoryHDC hdcMem(hdc);
	212	MonoBitmap hbmpCheck(nCheckWidth, nCheckHeight);
	213	SelectInHDC selBmp(hdcMem, hbmpCheck);
	214
	215	// then draw a check mark into it
	216	RECT rect = { 0, 0, nCheckWidth, nCheckHeight };
	217	::DrawFrameControl(hdcMem, &rect,
	218	#ifdef __WXWINCE__
	219	DFC_BUTTON, DFCS_BUTTONCHECK
	220	#else
	221	DFC_MENU, DFCS_MENUCHECK
	222	#endif
	223	);
	224
	225	// finally copy it to screen DC
	226	::BitBlt(hdc, x, y, nCheckWidth, nCheckHeight, hdcMem, 0, 0, SRCCOPY);
	227	}
	228
	229	// now we draw the smaller rectangle
	230	y++;
	231	nCheckWidth -= 2;
	232	nCheckHeight -= 2;
	233
	234	// draw hollow gray rectangle
	235	(void)::SelectObject(hdc, (HGDIOBJ)hpenGray);
	236
	237	SelectInHDC selBrush2(hdc, ::GetStockObject(NULL_BRUSH));
	238	Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
	239
	240	return true;
	241	}
	242
	243	// change the state of the item and redraw it
	244	void wxCheckListBoxItem::Check(bool check)
	245	{
	246	m_bChecked = check;
	247
	248	// index may be changed because new items were added/deleted
	249	if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
	250	{
	251	// update it
	252	int index = m_pParent->GetItemIndex(this);
	253
	254	wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
	255
	256	m_nIndex = (size_t)index;
	257	}
	258
	259	HWND hwndListbox = (HWND)m_pParent->GetHWND();
	260
	261	RECT rcUpdate;
	262
	263	if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
	264	m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
	265	{
	266	wxLogDebug(wxT("LB_GETITEMRECT failed"));
	267	}
	268
	269	::InvalidateRect(hwndListbox, &rcUpdate, FALSE);
	270	}
	271
	272	// send an "item checked" event
	273	void wxCheckListBoxItem::SendEvent()
	274	{
	275	wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
	276	event.SetInt(m_nIndex);
	277	event.SetEventObject(m_pParent);
	278	m_pParent->ProcessCommand(event);
	279	}
	280
	281	// ----------------------------------------------------------------------------
	282	// implementation of wxCheckListBox class
	283	// ----------------------------------------------------------------------------
	284
	285	// define event table
	286	// ------------------
	287	BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
	288	EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
	289	EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
	290	END_EVENT_TABLE()
	291
	292	// control creation
	293	// ----------------
	294
	295	// def ctor: use Create() to really create the control
	296	wxCheckListBox::wxCheckListBox()
	297	{
	298	}
	299
	300	// ctor which creates the associated control
	301	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	302	const wxPoint& pos, const wxSize& size,
	303	int nStrings, const wxString choices[],
	304	long style, const wxValidator& val,
	305	const wxString& name)
	306	{
	307	Create(parent, id, pos, size, nStrings, choices, style, val, name);
	308	}
	309
	310	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	311	const wxPoint& pos, const wxSize& size,
	312	const wxArrayString& choices,
	313	long style, const wxValidator& val,
	314	const wxString& name)
	315	{
	316	Create(parent, id, pos, size, choices, style, val, name);
	317	}
	318
	319	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	320	const wxPoint& pos, const wxSize& size,
	321	int n, const wxString choices[],
	322	long style,
	323	const wxValidator& validator, const wxString& name)
	324	{
	325	return wxListBox::Create(parent, id, pos, size, n, choices,
	326	style \| wxLB_OWNERDRAW, validator, name);
	327	}
	328
	329	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	330	const wxPoint& pos, const wxSize& size,
	331	const wxArrayString& choices,
	332	long style,
	333	const wxValidator& validator, const wxString& name)
	334	{
	335	return wxListBox::Create(parent, id, pos, size, choices,
	336	style \| wxLB_OWNERDRAW, validator, name);
	337	}
	338
	339	// misc overloaded methods
	340	// -----------------------
	341
	342	void wxCheckListBox::Delete(int N)
	343	{
	344	wxCHECK_RET( N >= 0 && N < m_noItems,
	345	wxT("invalid index in wxListBox::Delete") );
	346
	347	wxListBox::Delete(N);
	348
	349	// free memory
	350	delete m_aItems[N];
	351
	352	m_aItems.RemoveAt(N);
	353	}
	354
	355	bool wxCheckListBox::SetFont( const wxFont &font )
	356	{
	357	size_t i;
	358	for ( i = 0; i < m_aItems.GetCount(); i++ )
	359	m_aItems[i]->SetFont(font);
	360
	361	wxListBox::SetFont(font);
	362
	363	return true;
	364	}
	365
	366	// create/retrieve item
	367	// --------------------
	368
	369	// create a check list box item
	370	wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
	371	{
	372	wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
	373	return pItem;
	374	}
	375
	376	// return item size
	377	// ----------------
	378	bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
	379	{
	380	if ( wxListBox::MSWOnMeasure(item) ) {
	381	MEASUREITEMSTRUCT pStruct = (MEASUREITEMSTRUCT )item;
	382
	383	// save item height
	384	m_nItemHeight = pStruct->itemHeight;
	385
	386	// add place for the check mark
	387	pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
	388
	389	return true;
	390	}
	391
	392	return false;
	393	}
	394
	395	// check items
	396	// -----------
	397
	398	bool wxCheckListBox::IsChecked(size_t uiIndex) const
	399	{
	400	wxCHECK_MSG( uiIndex < (size_t)GetCount(), false, _T("bad wxCheckListBox index") );
	401
	402	return GetItem(uiIndex)->IsChecked();
	403	}
	404
	405	void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
	406	{
	407	wxCHECK_RET( uiIndex < (size_t)GetCount(), _T("bad wxCheckListBox index") );
	408
	409	GetItem(uiIndex)->Check(bCheck);
	410	}
	411
	412	// process events
	413	// --------------
	414
	415	void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
	416	{
	417	// what do we do?
	418	enum
	419	{
	420	None,
	421	Toggle,
	422	Set,
	423	Clear
	424	} oper;
	425
	426	switch ( event.GetKeyCode() )
	427	{
	428	case WXK_SPACE:
	429	oper = Toggle;
	430	break;
	431
	432	case WXK_NUMPAD_ADD:
	433	case '+':
	434	oper = Set;
	435	break;
	436
	437	case WXK_NUMPAD_SUBTRACT:
	438	case '-':
	439	oper = Clear;
	440	break;
	441
	442	default:
	443	oper = None;
	444	}
	445
	446	if ( oper != None )
	447	{
	448	wxArrayInt selections;
	449	int count = 0;
	450	if ( HasMultipleSelection() )
	451	{
	452	count = GetSelections(selections);
	453	}
	454	else
	455	{
	456	int sel = GetSelection();
	457	if (sel != -1)
	458	{
	459	count = 1;
	460	selections.Add(sel);
	461	}
	462	}
	463
	464	for ( int i = 0; i < count; i++ )
	465	{
	466	wxCheckListBoxItem *item = GetItem(selections[i]);
	467	if ( !item )
	468	{
	469	wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
	470	continue;
	471	}
	472
	473	switch ( oper )
	474	{
	475	case Toggle:
	476	item->Toggle();
	477	break;
	478
	479	case Set:
	480	case Clear:
	481	item->Check( oper == Set );
	482	break;
	483
	484	default:
	485	wxFAIL_MSG( _T("what should this key do?") );
	486	}
	487
	488	// we should send an event as this has been done by the user and
	489	// not by the program
	490	item->SendEvent();
	491	}
	492	}
	493	else // nothing to do
	494	{
	495	event.Skip();
	496	}
	497	}
	498
	499	void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
	500	{
	501	// clicking on the item selects it, clicking on the checkmark toggles
	502	if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() ) {
	503	int nItem = HitTest(event.GetX(), event.GetY());
	504
	505	if ( nItem != wxNOT_FOUND ) {
	506	wxCheckListBoxItem *item = GetItem(nItem);
	507	item->Toggle();
	508	item->SendEvent();
	509	}
	510	//else: it's not an error, just click outside of client zone
	511	}
	512	else {
	513	// implement default behaviour: clicking on the item selects it
	514	event.Skip();
	515	}
	516	}
	517
	518	int wxCheckListBox::DoHitTestItem(wxCoord x, wxCoord y) const
	519	{
	520	int nItem = (int)::SendMessage
	521	(
	522	(HWND)GetHWND(),
	523	LB_ITEMFROMPOINT,
	524	0,
	525	MAKELPARAM(x, y)
	526	);
	527
	528	return nItem >= m_noItems ? wxNOT_FOUND : nItem;
	529	}
	530
	531
	532	wxSize wxCheckListBox::DoGetBestSize() const
	533	{
	534	wxSize best = wxListBox::DoGetBestSize();
	535	best.x += wxOwnerDrawn::GetDefaultMarginWidth(); // add room for the checkbox
	536	CacheBestSize(best);
	537	return best;
	538	}
	539
	540	#endif
	541