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"

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