src/msw/checklst.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/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
// ----------------------------------------------------------------------------

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_CHECKLISTBOX && wxUSE_OWNER_DRAWN

#include "wx/checklst.h"

#ifndef WX_PRECOMP
    #include "wx/msw/wrapcctl.h"
    #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 <windowsx.h>

#include "wx/renderer.h"
#include "wx/msw/private.h"
#include "wx/msw/dc.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 WXDLLIMPEXP_FWD_CORE 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

    SetMarginWidth(::GetSystemMetrics(SM_CXMENUCHECK) - 2);

    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;

    wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
    // now draw the check mark part
    HDC hdc = GetHdcOf(*impl);

    int nBmpWidth  = ::GetSystemMetrics(SM_CXMENUCHECK),
        nBmpHeight = ::GetSystemMetrics(SM_CYMENUCHECK);


    // first create bitmap in a memory DC
    MemoryHDC hdcMem(hdc);
    CompatibleBitmap hBmpCheck(hdc, nBmpWidth, nBmpHeight);

    // then draw a check mark into it
    {
        SelectInHDC selBmp(hdcMem, hBmpCheck);

        int flags = wxCONTROL_FLAT;
        if ( IsChecked() )
            flags |= wxCONTROL_CHECKED;

        wxDCTemp dcMem(hdcMem);
        wxRendererNative::Get().DrawCheckBox(
                m_pParent, dcMem, wxRect(0, 0, nBmpWidth, nBmpHeight), flags);
    } // select hBmpCheck out of hdcMem

    // shift check mark 2 pixel to the right and bottom, looks better like this
    int x = rc.GetX() + 2,
        y = rc.GetY() + 2;

    // finally draw bitmap to screen: uses image list functions to blend
    // the bitmap with the background colour (better for the selected items)
    HIMAGELIST himl = ImageList_Create(nBmpWidth, nBmpHeight,
                                       ILC_COLOR32 | ILC_MASK, 1, 1);
    ImageList_Add(himl, hBmpCheck, NULL);

    UINT fStyle = stat & wxOwnerDrawn::wxODSelected ? ILD_SELECTED : ILD_NORMAL;
    ImageList_Draw(himl, 0, hdc, x, y, fStyle);

    ImageList_Destroy(himl);

    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);
    event.SetString(m_pParent->GetString(m_nIndex));
    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(unsigned int n)
{
    wxCHECK_RET( IsValid(n),
                 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 )
{
    unsigned int 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;

    // add place for the check mark
    pStruct->itemWidth  += wxOwnerDrawn::GetDefaultMarginWidth();
    pStruct->itemHeight += 1;

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

    return true;
  }

  return false;
}

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

bool wxCheckListBox::IsChecked(unsigned int uiIndex) const
{
    wxCHECK_MSG( IsValid(uiIndex), false, _T("bad wxCheckListBox index") );

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

void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck)
{
    wxCHECK_RET( IsValid(uiIndex), _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 )
        {
            // people expect to get "kill focus" event for the currently
            // focused control before getting events from the other controls
            // and, equally importantly, they may prevent the focus change from
            // taking place at all (e.g. because the old control contents is
            // invalid and needs to be corrected) in which case we shouldn't
            // generate this event at all
            SetFocus();
            if ( FindFocus() == this )
            {
                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 >= (int)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: src/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	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	#if wxUSE_CHECKLISTBOX && wxUSE_OWNER_DRAWN
	28
	29	#include "wx/checklst.h"
	30
	31	#ifndef WX_PRECOMP
	32	#include "wx/msw/wrapcctl.h"
	33	#include "wx/object.h"
	34	#include "wx/colour.h"
	35	#include "wx/font.h"
	36	#include "wx/bitmap.h"
	37	#include "wx/window.h"
	38	#include "wx/listbox.h"
	39	#include "wx/dcmemory.h"
	40	#include "wx/settings.h"
	41	#include "wx/log.h"
	42	#endif
	43
	44	#include "wx/ownerdrw.h"
	45
	46	#include <windowsx.h>
	47
	48	#include "wx/renderer.h"
	49	#include "wx/msw/private.h"
	50	#include "wx/msw/dc.h"
	51
	52	// ----------------------------------------------------------------------------
	53	// private functions
	54	// ----------------------------------------------------------------------------
	55
	56	// get item (converted to right type)
	57	#define GetItem(n) ((wxCheckListBoxItem *)(GetItem(n)))
	58
	59	// ============================================================================
	60	// implementation
	61	// ============================================================================
	62
	63
	64	#if wxUSE_EXTENDED_RTTI
	65	WX_DEFINE_FLAGS( wxCheckListBoxStyle )
	66
	67	wxBEGIN_FLAGS( wxCheckListBoxStyle )
	68	// new style border flags, we put them first to
	69	// use them for streaming out
	70	wxFLAGS_MEMBER(wxBORDER_SIMPLE)
	71	wxFLAGS_MEMBER(wxBORDER_SUNKEN)
	72	wxFLAGS_MEMBER(wxBORDER_DOUBLE)
	73	wxFLAGS_MEMBER(wxBORDER_RAISED)
	74	wxFLAGS_MEMBER(wxBORDER_STATIC)
	75	wxFLAGS_MEMBER(wxBORDER_NONE)
	76
	77	// old style border flags
	78	wxFLAGS_MEMBER(wxSIMPLE_BORDER)
	79	wxFLAGS_MEMBER(wxSUNKEN_BORDER)
	80	wxFLAGS_MEMBER(wxDOUBLE_BORDER)
	81	wxFLAGS_MEMBER(wxRAISED_BORDER)
	82	wxFLAGS_MEMBER(wxSTATIC_BORDER)
	83	wxFLAGS_MEMBER(wxBORDER)
	84
	85	// standard window styles
	86	wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
	87	wxFLAGS_MEMBER(wxCLIP_CHILDREN)
	88	wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
	89	wxFLAGS_MEMBER(wxWANTS_CHARS)
	90	wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
	91	wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
	92	wxFLAGS_MEMBER(wxVSCROLL)
	93	wxFLAGS_MEMBER(wxHSCROLL)
	94
	95	wxFLAGS_MEMBER(wxLB_SINGLE)
	96	wxFLAGS_MEMBER(wxLB_MULTIPLE)
	97	wxFLAGS_MEMBER(wxLB_EXTENDED)
	98	wxFLAGS_MEMBER(wxLB_HSCROLL)
	99	wxFLAGS_MEMBER(wxLB_ALWAYS_SB)
	100	wxFLAGS_MEMBER(wxLB_NEEDED_SB)
	101	wxFLAGS_MEMBER(wxLB_SORT)
	102	wxFLAGS_MEMBER(wxLB_OWNERDRAW)
	103
	104	wxEND_FLAGS( wxCheckListBoxStyle )
	105
	106	IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckListBox, wxListBox,"wx/checklst.h")
	107
	108	wxBEGIN_PROPERTIES_TABLE(wxCheckListBox)
	109	wxEVENT_PROPERTY( Toggle , wxEVT_COMMAND_CHECKLISTBOX_TOGGLED , wxCommandEvent )
	110	wxPROPERTY_FLAGS( WindowStyle , wxCheckListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , wxLB_OWNERDRAW /flags/ , wxT("Helpstring") , wxT("group")) // style
	111	wxEND_PROPERTIES_TABLE()
	112
	113	wxBEGIN_HANDLERS_TABLE(wxCheckListBox)
	114	wxEND_HANDLERS_TABLE()
	115
	116	wxCONSTRUCTOR_4( wxCheckListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )
	117
	118	#else
	119	IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
	120	#endif
	121
	122	// ----------------------------------------------------------------------------
	123	// declaration and implementation of wxCheckListBoxItem class
	124	// ----------------------------------------------------------------------------
	125
	126	class wxCheckListBoxItem : public wxOwnerDrawn
	127	{
	128	friend class WXDLLIMPEXP_FWD_CORE wxCheckListBox;
	129	public:
	130	// ctor
	131	wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);
	132
	133	// drawing functions
	134	virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
	135
	136	// simple accessors and operations
	137	bool IsChecked() const { return m_bChecked; }
	138
	139	void Check(bool bCheck);
	140	void Toggle() { Check(!IsChecked()); }
	141
	142	void SendEvent();
	143
	144	private:
	145	bool m_bChecked;
	146	wxCheckListBox *m_pParent;
	147	size_t m_nIndex;
	148
	149	DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
	150	};
	151
	152	wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
	153	: wxOwnerDrawn(wxEmptyString, true) // checkable
	154	{
	155	m_bChecked = false;
	156	m_pParent = pParent;
	157	m_nIndex = nIndex;
	158
	159	// we don't initialize m_nCheckHeight/Width vars because it's
	160	// done in OnMeasure while they are used only in OnDraw and we
	161	// know that there will always be OnMeasure before OnDraw
	162
	163	SetMarginWidth(::GetSystemMetrics(SM_CXMENUCHECK) - 2);
	164
	165	SetBackgroundColour(pParent->GetBackgroundColour());
	166	}
	167
	168	bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
	169	wxODAction act, wxODStatus stat)
	170	{
	171	// first draw the label
	172	if ( IsChecked() )
	173	stat = (wxOwnerDrawn::wxODStatus)(stat \| wxOwnerDrawn::wxODChecked);
	174
	175	if ( !wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) )
	176	return false;
	177
	178	wxMSWDCImpl impl = (wxMSWDCImpl) dc.GetImpl();
	179	// now draw the check mark part
	180	HDC hdc = GetHdcOf(*impl);
	181
	182	int nBmpWidth = ::GetSystemMetrics(SM_CXMENUCHECK),
	183	nBmpHeight = ::GetSystemMetrics(SM_CYMENUCHECK);
	184
	185
	186	// first create bitmap in a memory DC
	187	MemoryHDC hdcMem(hdc);
	188	CompatibleBitmap hBmpCheck(hdc, nBmpWidth, nBmpHeight);
	189
	190	// then draw a check mark into it
	191	{
	192	SelectInHDC selBmp(hdcMem, hBmpCheck);
	193
	194	int flags = wxCONTROL_FLAT;
	195	if ( IsChecked() )
	196	flags \|= wxCONTROL_CHECKED;
	197
	198	wxDCTemp dcMem(hdcMem);
	199	wxRendererNative::Get().DrawCheckBox(
	200	m_pParent, dcMem, wxRect(0, 0, nBmpWidth, nBmpHeight), flags);
	201	} // select hBmpCheck out of hdcMem
	202
	203	// shift check mark 2 pixel to the right and bottom, looks better like this
	204	int x = rc.GetX() + 2,
	205	y = rc.GetY() + 2;
	206
	207	// finally draw bitmap to screen: uses image list functions to blend
	208	// the bitmap with the background colour (better for the selected items)
	209	HIMAGELIST himl = ImageList_Create(nBmpWidth, nBmpHeight,
	210	ILC_COLOR32 \| ILC_MASK, 1, 1);
	211	ImageList_Add(himl, hBmpCheck, NULL);
	212
	213	UINT fStyle = stat & wxOwnerDrawn::wxODSelected ? ILD_SELECTED : ILD_NORMAL;
	214	ImageList_Draw(himl, 0, hdc, x, y, fStyle);
	215
	216	ImageList_Destroy(himl);
	217
	218	return true;
	219	}
	220
	221	// change the state of the item and redraw it
	222	void wxCheckListBoxItem::Check(bool check)
	223	{
	224	m_bChecked = check;
	225
	226	// index may be changed because new items were added/deleted
	227	if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
	228	{
	229	// update it
	230	int index = m_pParent->GetItemIndex(this);
	231
	232	wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
	233
	234	m_nIndex = (size_t)index;
	235	}
	236
	237	HWND hwndListbox = (HWND)m_pParent->GetHWND();
	238
	239	RECT rcUpdate;
	240
	241	if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
	242	m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
	243	{
	244	wxLogDebug(wxT("LB_GETITEMRECT failed"));
	245	}
	246
	247	::InvalidateRect(hwndListbox, &rcUpdate, FALSE);
	248	}
	249
	250	// send an "item checked" event
	251	void wxCheckListBoxItem::SendEvent()
	252	{
	253	wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
	254	event.SetInt(m_nIndex);
	255	event.SetEventObject(m_pParent);
	256	event.SetString(m_pParent->GetString(m_nIndex));
	257	m_pParent->ProcessCommand(event);
	258	}
	259
	260	// ----------------------------------------------------------------------------
	261	// implementation of wxCheckListBox class
	262	// ----------------------------------------------------------------------------
	263
	264	// define event table
	265	// ------------------
	266	BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
	267	EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
	268	EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
	269	END_EVENT_TABLE()
	270
	271	// control creation
	272	// ----------------
	273
	274	// def ctor: use Create() to really create the control
	275	wxCheckListBox::wxCheckListBox()
	276	{
	277	}
	278
	279	// ctor which creates the associated control
	280	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	281	const wxPoint& pos, const wxSize& size,
	282	int nStrings, const wxString choices[],
	283	long style, const wxValidator& val,
	284	const wxString& name)
	285	{
	286	Create(parent, id, pos, size, nStrings, choices, style, val, name);
	287	}
	288
	289	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	290	const wxPoint& pos, const wxSize& size,
	291	const wxArrayString& choices,
	292	long style, const wxValidator& val,
	293	const wxString& name)
	294	{
	295	Create(parent, id, pos, size, choices, style, val, name);
	296	}
	297
	298	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	299	const wxPoint& pos, const wxSize& size,
	300	int n, const wxString choices[],
	301	long style,
	302	const wxValidator& validator, const wxString& name)
	303	{
	304	return wxListBox::Create(parent, id, pos, size, n, choices,
	305	style \| wxLB_OWNERDRAW, validator, name);
	306	}
	307
	308	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	309	const wxPoint& pos, const wxSize& size,
	310	const wxArrayString& choices,
	311	long style,
	312	const wxValidator& validator, const wxString& name)
	313	{
	314	return wxListBox::Create(parent, id, pos, size, choices,
	315	style \| wxLB_OWNERDRAW, validator, name);
	316	}
	317
	318	// misc overloaded methods
	319	// -----------------------
	320
	321	void wxCheckListBox::Delete(unsigned int n)
	322	{
	323	wxCHECK_RET( IsValid(n),
	324	wxT("invalid index in wxListBox::Delete") );
	325
	326	wxListBox::Delete(n);
	327
	328	// free memory
	329	delete m_aItems[n];
	330
	331	m_aItems.RemoveAt(n);
	332	}
	333
	334	bool wxCheckListBox::SetFont( const wxFont &font )
	335	{
	336	unsigned int i;
	337	for ( i = 0; i < m_aItems.GetCount(); i++ )
	338	m_aItems[i]->SetFont(font);
	339
	340	wxListBox::SetFont(font);
	341
	342	return true;
	343	}
	344
	345	// create/retrieve item
	346	// --------------------
	347
	348	// create a check list box item
	349	wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
	350	{
	351	wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
	352	return pItem;
	353	}
	354
	355	// return item size
	356	// ----------------
	357	bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
	358	{
	359	if ( wxListBox::MSWOnMeasure(item) ) {
	360	MEASUREITEMSTRUCT pStruct = (MEASUREITEMSTRUCT )item;
	361
	362	// add place for the check mark
	363	pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
	364	pStruct->itemHeight += 1;
	365
	366	// save item height
	367	m_nItemHeight = pStruct->itemHeight;
	368
	369	return true;
	370	}
	371
	372	return false;
	373	}
	374
	375	// check items
	376	// -----------
	377
	378	bool wxCheckListBox::IsChecked(unsigned int uiIndex) const
	379	{
	380	wxCHECK_MSG( IsValid(uiIndex), false, _T("bad wxCheckListBox index") );
	381
	382	return GetItem(uiIndex)->IsChecked();
	383	}
	384
	385	void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck)
	386	{
	387	wxCHECK_RET( IsValid(uiIndex), _T("bad wxCheckListBox index") );
	388
	389	GetItem(uiIndex)->Check(bCheck);
	390	}
	391
	392	// process events
	393	// --------------
	394
	395	void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
	396	{
	397	// what do we do?
	398	enum
	399	{
	400	None,
	401	Toggle,
	402	Set,
	403	Clear
	404	} oper;
	405
	406	switch ( event.GetKeyCode() )
	407	{
	408	case WXK_SPACE:
	409	oper = Toggle;
	410	break;
	411
	412	case WXK_NUMPAD_ADD:
	413	case '+':
	414	oper = Set;
	415	break;
	416
	417	case WXK_NUMPAD_SUBTRACT:
	418	case '-':
	419	oper = Clear;
	420	break;
	421
	422	default:
	423	oper = None;
	424	}
	425
	426	if ( oper != None )
	427	{
	428	wxArrayInt selections;
	429	int count = 0;
	430	if ( HasMultipleSelection() )
	431	{
	432	count = GetSelections(selections);
	433	}
	434	else
	435	{
	436	int sel = GetSelection();
	437	if (sel != -1)
	438	{
	439	count = 1;
	440	selections.Add(sel);
	441	}
	442	}
	443
	444	for ( int i = 0; i < count; i++ )
	445	{
	446	wxCheckListBoxItem *item = GetItem(selections[i]);
	447	if ( !item )
	448	{
	449	wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
	450	continue;
	451	}
	452
	453	switch ( oper )
	454	{
	455	case Toggle:
	456	item->Toggle();
	457	break;
	458
	459	case Set:
	460	case Clear:
	461	item->Check( oper == Set );
	462	break;
	463
	464	default:
	465	wxFAIL_MSG( _T("what should this key do?") );
	466	}
	467
	468	// we should send an event as this has been done by the user and
	469	// not by the program
	470	item->SendEvent();
	471	}
	472	}
	473	else // nothing to do
	474	{
	475	event.Skip();
	476	}
	477	}
	478
	479	void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
	480	{
	481	// clicking on the item selects it, clicking on the checkmark toggles
	482	if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() )
	483	{
	484	int nItem = HitTest(event.GetX(), event.GetY());
	485
	486	if ( nItem != wxNOT_FOUND )
	487	{
	488	// people expect to get "kill focus" event for the currently
	489	// focused control before getting events from the other controls
	490	// and, equally importantly, they may prevent the focus change from
	491	// taking place at all (e.g. because the old control contents is
	492	// invalid and needs to be corrected) in which case we shouldn't
	493	// generate this event at all
	494	SetFocus();
	495	if ( FindFocus() == this )
	496	{
	497	wxCheckListBoxItem *item = GetItem(nItem);
	498	item->Toggle();
	499	item->SendEvent();
	500	}
	501	}
	502	//else: it's not an error, just click outside of client zone
	503	}
	504	else
	505	{
	506	// implement default behaviour: clicking on the item selects it
	507	event.Skip();
	508	}
	509	}
	510
	511	int wxCheckListBox::DoHitTestItem(wxCoord x, wxCoord y) const
	512	{
	513	int nItem = (int)::SendMessage
	514	(
	515	(HWND)GetHWND(),
	516	LB_ITEMFROMPOINT,
	517	0,
	518	MAKELPARAM(x, y)
	519	);
	520
	521	return nItem >= (int)m_noItems ? wxNOT_FOUND : nItem;
	522	}
	523
	524
	525	wxSize wxCheckListBox::DoGetBestSize() const
	526	{
	527	wxSize best = wxListBox::DoGetBestSize();
	528	best.x += wxOwnerDrawn::GetDefaultMarginWidth(); // add room for the checkbox
	529	CacheBestSize(best);
	530	return best;
	531	}
	532
	533	#endif