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/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/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(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;

    // 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(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 )
        {
            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/object.h"
	33	#include "wx/colour.h"
	34	#include "wx/font.h"
	35	#include "wx/bitmap.h"
	36	#include "wx/window.h"
	37	#include "wx/listbox.h"
	38	#include "wx/dcmemory.h"
	39
	40	#include "wx/settings.h"
	41
	42	#include "wx/log.h"
	43	#endif
	44
	45	#include "wx/ownerdrw.h"
	46
	47	#include "wx/msw/wrapwin.h"
	48	#include <windowsx.h>
	49
	50	#include "wx/msw/private.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 WXDLLEXPORT 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	// fix appearance for check list boxes: they don't look quite the same as
	164	// menu icons
	165	SetMarginWidth(::GetSystemMetrics(SM_CXMENUCHECK) -
	166	2*wxSystemSettings::GetMetric(wxSYS_EDGE_X) + 1);
	167	SetBackgroundColour(pParent->GetBackgroundColour());
	168	}
	169
	170	bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
	171	wxODAction act, wxODStatus stat)
	172	{
	173	// first draw the label
	174	if ( IsChecked() )
	175	stat = (wxOwnerDrawn::wxODStatus)(stat \| wxOwnerDrawn::wxODChecked);
	176
	177	if ( !wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) )
	178	return false;
	179
	180
	181	// now draw the check mark part
	182	size_t nCheckWidth = GetDefaultMarginWidth(),
	183	nCheckHeight = m_pParent->GetItemHeight();
	184
	185	int x = rc.GetX(),
	186	y = rc.GetY();
	187
	188	HDC hdc = (HDC)dc.GetHDC();
	189
	190	// create pens, brushes &c
	191	COLORREF colBg = ::GetSysColor(COLOR_WINDOW);
	192	AutoHPEN hpenBack(colBg),
	193	hpenGray(RGB(0xc0, 0xc0, 0xc0));
	194
	195	SelectInHDC selPen(hdc, (HGDIOBJ)hpenBack);
	196	AutoHBRUSH hbrBack(colBg);
	197	SelectInHDC selBrush(hdc, hbrBack);
	198
	199	// erase the background: it could have been filled with the selected colour
	200	Rectangle(hdc, x, y, x + nCheckWidth + 1, rc.GetBottom() + 1);
	201
	202	// shift check mark 1 pixel to the right, looks better like this
	203	x++;
	204
	205	if ( IsChecked() )
	206	{
	207	// first create a monochrome bitmap in a memory DC
	208	MemoryHDC hdcMem(hdc);
	209	MonoBitmap hbmpCheck(nCheckWidth, nCheckHeight);
	210	SelectInHDC selBmp(hdcMem, hbmpCheck);
	211
	212	// then draw a check mark into it
	213	RECT rect = { 0, 0, nCheckWidth, nCheckHeight };
	214	::DrawFrameControl(hdcMem, &rect,
	215	#ifdef __WXWINCE__
	216	DFC_BUTTON, DFCS_BUTTONCHECK
	217	#else
	218	DFC_MENU, DFCS_MENUCHECK
	219	#endif
	220	);
	221
	222	// finally copy it to screen DC
	223	::BitBlt(hdc, x, y, nCheckWidth, nCheckHeight, hdcMem, 0, 0, SRCCOPY);
	224	}
	225
	226	// now we draw the smaller rectangle
	227	y++;
	228	nCheckWidth -= 2;
	229	nCheckHeight -= 2;
	230
	231	// draw hollow gray rectangle
	232	(void)::SelectObject(hdc, (HGDIOBJ)hpenGray);
	233
	234	SelectInHDC selBrush2(hdc, ::GetStockObject(NULL_BRUSH));
	235	Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
	236
	237	return true;
	238	}
	239
	240	// change the state of the item and redraw it
	241	void wxCheckListBoxItem::Check(bool check)
	242	{
	243	m_bChecked = check;
	244
	245	// index may be changed because new items were added/deleted
	246	if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
	247	{
	248	// update it
	249	int index = m_pParent->GetItemIndex(this);
	250
	251	wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
	252
	253	m_nIndex = (size_t)index;
	254	}
	255
	256	HWND hwndListbox = (HWND)m_pParent->GetHWND();
	257
	258	RECT rcUpdate;
	259
	260	if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
	261	m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
	262	{
	263	wxLogDebug(wxT("LB_GETITEMRECT failed"));
	264	}
	265
	266	::InvalidateRect(hwndListbox, &rcUpdate, FALSE);
	267	}
	268
	269	// send an "item checked" event
	270	void wxCheckListBoxItem::SendEvent()
	271	{
	272	wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
	273	event.SetInt(m_nIndex);
	274	event.SetEventObject(m_pParent);
	275	m_pParent->ProcessCommand(event);
	276	}
	277
	278	// ----------------------------------------------------------------------------
	279	// implementation of wxCheckListBox class
	280	// ----------------------------------------------------------------------------
	281
	282	// define event table
	283	// ------------------
	284	BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
	285	EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
	286	EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
	287	END_EVENT_TABLE()
	288
	289	// control creation
	290	// ----------------
	291
	292	// def ctor: use Create() to really create the control
	293	wxCheckListBox::wxCheckListBox()
	294	{
	295	}
	296
	297	// ctor which creates the associated control
	298	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	299	const wxPoint& pos, const wxSize& size,
	300	int nStrings, const wxString choices[],
	301	long style, const wxValidator& val,
	302	const wxString& name)
	303	{
	304	Create(parent, id, pos, size, nStrings, choices, style, val, name);
	305	}
	306
	307	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	308	const wxPoint& pos, const wxSize& size,
	309	const wxArrayString& choices,
	310	long style, const wxValidator& val,
	311	const wxString& name)
	312	{
	313	Create(parent, id, pos, size, choices, style, val, name);
	314	}
	315
	316	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	317	const wxPoint& pos, const wxSize& size,
	318	int n, const wxString choices[],
	319	long style,
	320	const wxValidator& validator, const wxString& name)
	321	{
	322	return wxListBox::Create(parent, id, pos, size, n, choices,
	323	style \| wxLB_OWNERDRAW, validator, name);
	324	}
	325
	326	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	327	const wxPoint& pos, const wxSize& size,
	328	const wxArrayString& choices,
	329	long style,
	330	const wxValidator& validator, const wxString& name)
	331	{
	332	return wxListBox::Create(parent, id, pos, size, choices,
	333	style \| wxLB_OWNERDRAW, validator, name);
	334	}
	335
	336	// misc overloaded methods
	337	// -----------------------
	338
	339	void wxCheckListBox::Delete(unsigned int n)
	340	{
	341	wxCHECK_RET( IsValid(n),
	342	wxT("invalid index in wxListBox::Delete") );
	343
	344	wxListBox::Delete(n);
	345
	346	// free memory
	347	delete m_aItems[n];
	348
	349	m_aItems.RemoveAt(n);
	350	}
	351
	352	bool wxCheckListBox::SetFont( const wxFont &font )
	353	{
	354	unsigned int i;
	355	for ( i = 0; i < m_aItems.GetCount(); i++ )
	356	m_aItems[i]->SetFont(font);
	357
	358	wxListBox::SetFont(font);
	359
	360	return true;
	361	}
	362
	363	// create/retrieve item
	364	// --------------------
	365
	366	// create a check list box item
	367	wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
	368	{
	369	wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
	370	return pItem;
	371	}
	372
	373	// return item size
	374	// ----------------
	375	bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
	376	{
	377	if ( wxListBox::MSWOnMeasure(item) ) {
	378	MEASUREITEMSTRUCT pStruct = (MEASUREITEMSTRUCT )item;
	379
	380	// save item height
	381	m_nItemHeight = pStruct->itemHeight;
	382
	383	// add place for the check mark
	384	pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
	385
	386	return true;
	387	}
	388
	389	return false;
	390	}
	391
	392	// check items
	393	// -----------
	394
	395	bool wxCheckListBox::IsChecked(unsigned int uiIndex) const
	396	{
	397	wxCHECK_MSG( IsValid(uiIndex), false, _T("bad wxCheckListBox index") );
	398
	399	return GetItem(uiIndex)->IsChecked();
	400	}
	401
	402	void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck)
	403	{
	404	wxCHECK_RET( IsValid(uiIndex), _T("bad wxCheckListBox index") );
	405
	406	GetItem(uiIndex)->Check(bCheck);
	407	}
	408
	409	// process events
	410	// --------------
	411
	412	void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
	413	{
	414	// what do we do?
	415	enum
	416	{
	417	None,
	418	Toggle,
	419	Set,
	420	Clear
	421	} oper;
	422
	423	switch ( event.GetKeyCode() )
	424	{
	425	case WXK_SPACE:
	426	oper = Toggle;
	427	break;
	428
	429	case WXK_NUMPAD_ADD:
	430	case '+':
	431	oper = Set;
	432	break;
	433
	434	case WXK_NUMPAD_SUBTRACT:
	435	case '-':
	436	oper = Clear;
	437	break;
	438
	439	default:
	440	oper = None;
	441	}
	442
	443	if ( oper != None )
	444	{
	445	wxArrayInt selections;
	446	int count = 0;
	447	if ( HasMultipleSelection() )
	448	{
	449	count = GetSelections(selections);
	450	}
	451	else
	452	{
	453	int sel = GetSelection();
	454	if (sel != -1)
	455	{
	456	count = 1;
	457	selections.Add(sel);
	458	}
	459	}
	460
	461	for ( int i = 0; i < count; i++ )
	462	{
	463	wxCheckListBoxItem *item = GetItem(selections[i]);
	464	if ( !item )
	465	{
	466	wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
	467	continue;
	468	}
	469
	470	switch ( oper )
	471	{
	472	case Toggle:
	473	item->Toggle();
	474	break;
	475
	476	case Set:
	477	case Clear:
	478	item->Check( oper == Set );
	479	break;
	480
	481	default:
	482	wxFAIL_MSG( _T("what should this key do?") );
	483	}
	484
	485	// we should send an event as this has been done by the user and
	486	// not by the program
	487	item->SendEvent();
	488	}
	489	}
	490	else // nothing to do
	491	{
	492	event.Skip();
	493	}
	494	}
	495
	496	void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
	497	{
	498	// clicking on the item selects it, clicking on the checkmark toggles
	499	if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() )
	500	{
	501	int nItem = HitTest(event.GetX(), event.GetY());
	502
	503	if ( nItem != wxNOT_FOUND )
	504	{
	505	wxCheckListBoxItem *item = GetItem(nItem);
	506	item->Toggle();
	507	item->SendEvent();
	508	}
	509	//else: it's not an error, just click outside of client zone
	510	}
	511	else
	512	{
	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 >= (int)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