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_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"

#if defined(__GNUWIN32_OLD__)
    #include "wx/msw/gnuwin32/extra.h"
#endif

// ----------------------------------------------------------------------------
// 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:

    DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
  bool            m_bChecked;
  wxCheckListBox *m_pParent;
  size_t          m_nIndex;
};

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
  SetMarginWidth(GetDefaultMarginWidth());
}

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

  if ( wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) ) {
    // ## using native API for performance and precision
    size_t nCheckWidth  = GetDefaultMarginWidth(),
         nCheckHeight = m_pParent->GetItemHeight();

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

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

    // create pens
    HPEN hpenBack = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOW)),
         hpenGray = CreatePen(PS_SOLID, 0, RGB(128, 128, 128)),
         hpenPrev = (HPEN)SelectObject(hdc, hpenBack);

    // we erase the 1-pixel border
    Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);

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

    if ( IsChecked() ) {
      // first create a monochrome bitmap in a memory DC
      HDC hdcMem = CreateCompatibleDC(hdc);
      HBITMAP hbmpCheck = CreateBitmap(nCheckWidth, nCheckHeight, 1, 1, 0);
      HBITMAP hbmpOld = (HBITMAP)SelectObject(hdcMem, hbmpCheck);

      // then draw a check mark into it

      RECT rect;
      rect.left   = 0;
      rect.top    = 0;
      rect.right  = nCheckWidth;
      rect.bottom = nCheckHeight;

#ifdef __WXWINCE__
      DrawFrameControl(hdcMem, &rect, DFC_BUTTON, DFCS_BUTTONCHECK);
#else
      DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
#endif

      // finally copy it to screen DC and clean up
      BitBlt(hdc, x, y, nCheckWidth - 1, nCheckHeight,
             hdcMem, 0, 0, SRCCOPY);

      SelectObject(hdcMem, hbmpOld);
      DeleteObject(hbmpCheck);
      DeleteDC(hdcMem);
    }

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

    // draw hollow gray rectangle
    (void)SelectObject(hdc, hpenGray);
    HBRUSH hbrPrev  = (HBRUSH)SelectObject(hdc, GetStockObject(NULL_BRUSH));
    Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);

    // clean up
    (void)SelectObject(hdc, hpenPrev);
    (void)SelectObject(hdc, hbrPrev);

    DeleteObject(hpenBack);
    DeleteObject(hpenGray);

    /*
    dc.DrawRectangle(x, y, nCheckWidth, nCheckHeight);

    if ( IsChecked() ) {
      dc.DrawLine(x, y, x + nCheckWidth, y + nCheckHeight);
      dc.DrawLine(x, y + nCheckHeight, x + nCheckWidth, y);
    }
    */

    return TRUE;
  }

  return FALSE;
}

// 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
    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_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	#if defined(__GNUWIN32_OLD__)
	56	#include "wx/msw/gnuwin32/extra.h"
	57	#endif
	58
	59	// ----------------------------------------------------------------------------
	60	// private functions
	61	// ----------------------------------------------------------------------------
	62
	63	// get item (converted to right type)
	64	#define GetItem(n) ((wxCheckListBoxItem *)(GetItem(n)))
	65
	66	// ============================================================================
	67	// implementation
	68	// ============================================================================
	69
	70
	71	#if wxUSE_EXTENDED_RTTI
	72	WX_DEFINE_FLAGS( wxCheckListBoxStyle )
	73
	74	wxBEGIN_FLAGS( wxCheckListBoxStyle )
	75	// new style border flags, we put them first to
	76	// use them for streaming out
	77	wxFLAGS_MEMBER(wxBORDER_SIMPLE)
	78	wxFLAGS_MEMBER(wxBORDER_SUNKEN)
	79	wxFLAGS_MEMBER(wxBORDER_DOUBLE)
	80	wxFLAGS_MEMBER(wxBORDER_RAISED)
	81	wxFLAGS_MEMBER(wxBORDER_STATIC)
	82	wxFLAGS_MEMBER(wxBORDER_NONE)
	83
	84	// old style border flags
	85	wxFLAGS_MEMBER(wxSIMPLE_BORDER)
	86	wxFLAGS_MEMBER(wxSUNKEN_BORDER)
	87	wxFLAGS_MEMBER(wxDOUBLE_BORDER)
	88	wxFLAGS_MEMBER(wxRAISED_BORDER)
	89	wxFLAGS_MEMBER(wxSTATIC_BORDER)
	90	wxFLAGS_MEMBER(wxBORDER)
	91
	92	// standard window styles
	93	wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
	94	wxFLAGS_MEMBER(wxCLIP_CHILDREN)
	95	wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
	96	wxFLAGS_MEMBER(wxWANTS_CHARS)
	97	wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
	98	wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
	99	wxFLAGS_MEMBER(wxVSCROLL)
	100	wxFLAGS_MEMBER(wxHSCROLL)
	101
	102	wxFLAGS_MEMBER(wxLB_SINGLE)
	103	wxFLAGS_MEMBER(wxLB_MULTIPLE)
	104	wxFLAGS_MEMBER(wxLB_EXTENDED)
	105	wxFLAGS_MEMBER(wxLB_HSCROLL)
	106	wxFLAGS_MEMBER(wxLB_ALWAYS_SB)
	107	wxFLAGS_MEMBER(wxLB_NEEDED_SB)
	108	wxFLAGS_MEMBER(wxLB_SORT)
	109	wxFLAGS_MEMBER(wxLB_OWNERDRAW)
	110
	111	wxEND_FLAGS( wxCheckListBoxStyle )
	112
	113	IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckListBox, wxListBox,"wx/checklst.h")
	114
	115	wxBEGIN_PROPERTIES_TABLE(wxCheckListBox)
	116	wxEVENT_PROPERTY( Toggle , wxEVT_COMMAND_CHECKLISTBOX_TOGGLED , wxCommandEvent )
	117	wxPROPERTY_FLAGS( WindowStyle , wxCheckListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , wxLB_OWNERDRAW /flags/ , wxT("Helpstring") , wxT("group")) // style
	118	wxEND_PROPERTIES_TABLE()
	119
	120	wxBEGIN_HANDLERS_TABLE(wxCheckListBox)
	121	wxEND_HANDLERS_TABLE()
	122
	123	wxCONSTRUCTOR_4( wxCheckListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )
	124
	125	#else
	126	IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
	127	#endif
	128
	129	// ----------------------------------------------------------------------------
	130	// declaration and implementation of wxCheckListBoxItem class
	131	// ----------------------------------------------------------------------------
	132
	133	class wxCheckListBoxItem : public wxOwnerDrawn
	134	{
	135	friend class WXDLLEXPORT wxCheckListBox;
	136	public:
	137	// ctor
	138	wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);
	139
	140	// drawing functions
	141	virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
	142
	143	// simple accessors and operations
	144	bool IsChecked() const { return m_bChecked; }
	145
	146	void Check(bool bCheck);
	147	void Toggle() { Check(!IsChecked()); }
	148
	149	void SendEvent();
	150
	151	private:
	152
	153	DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
	154	bool m_bChecked;
	155	wxCheckListBox *m_pParent;
	156	size_t m_nIndex;
	157	};
	158
	159	wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
	160	: wxOwnerDrawn(wxEmptyString, TRUE) // checkable
	161	{
	162	m_bChecked = FALSE;
	163	m_pParent = pParent;
	164	m_nIndex = nIndex;
	165
	166	// we don't initialize m_nCheckHeight/Width vars because it's
	167	// done in OnMeasure while they are used only in OnDraw and we
	168	// know that there will always be OnMeasure before OnDraw
	169
	170	// fix appearance
	171	SetMarginWidth(GetDefaultMarginWidth());
	172	}
	173
	174	bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
	175	wxODAction act, wxODStatus stat)
	176	{
	177	if ( IsChecked() )
	178	stat = (wxOwnerDrawn::wxODStatus)(stat \| wxOwnerDrawn::wxODChecked);
	179
	180	if ( wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) ) {
	181	// ## using native API for performance and precision
	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
	191	HPEN hpenBack = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOW)),
	192	hpenGray = CreatePen(PS_SOLID, 0, RGB(128, 128, 128)),
	193	hpenPrev = (HPEN)SelectObject(hdc, hpenBack);
	194
	195	// we erase the 1-pixel border
	196	Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
	197
	198	// shift check mark 1 pixel to the right (it looks better like this)
	199	x++;
	200
	201	if ( IsChecked() ) {
	202	// first create a monochrome bitmap in a memory DC
	203	HDC hdcMem = CreateCompatibleDC(hdc);
	204	HBITMAP hbmpCheck = CreateBitmap(nCheckWidth, nCheckHeight, 1, 1, 0);
	205	HBITMAP hbmpOld = (HBITMAP)SelectObject(hdcMem, hbmpCheck);
	206
	207	// then draw a check mark into it
	208
	209	RECT rect;
	210	rect.left = 0;
	211	rect.top = 0;
	212	rect.right = nCheckWidth;
	213	rect.bottom = nCheckHeight;
	214
	215	#ifdef __WXWINCE__
	216	DrawFrameControl(hdcMem, &rect, DFC_BUTTON, DFCS_BUTTONCHECK);
	217	#else
	218	DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
	219	#endif
	220
	221	// finally copy it to screen DC and clean up
	222	BitBlt(hdc, x, y, nCheckWidth - 1, nCheckHeight,
	223	hdcMem, 0, 0, SRCCOPY);
	224
	225	SelectObject(hdcMem, hbmpOld);
	226	DeleteObject(hbmpCheck);
	227	DeleteDC(hdcMem);
	228	}
	229
	230	// now we draw the smaller rectangle
	231	y++;
	232	nCheckWidth -= 2;
	233	nCheckHeight -= 2;
	234
	235	// draw hollow gray rectangle
	236	(void)SelectObject(hdc, hpenGray);
	237	HBRUSH hbrPrev = (HBRUSH)SelectObject(hdc, GetStockObject(NULL_BRUSH));
	238	Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
	239
	240	// clean up
	241	(void)SelectObject(hdc, hpenPrev);
	242	(void)SelectObject(hdc, hbrPrev);
	243
	244	DeleteObject(hpenBack);
	245	DeleteObject(hpenGray);
	246
	247	/*
	248	dc.DrawRectangle(x, y, nCheckWidth, nCheckHeight);
	249
	250	if ( IsChecked() ) {
	251	dc.DrawLine(x, y, x + nCheckWidth, y + nCheckHeight);
	252	dc.DrawLine(x, y + nCheckHeight, x + nCheckWidth, y);
	253	}
	254	*/
	255
	256	return TRUE;
	257	}
	258
	259	return FALSE;
	260	}
	261
	262	// change the state of the item and redraw it
	263	void wxCheckListBoxItem::Check(bool check)
	264	{
	265	m_bChecked = check;
	266
	267	// index may be changed because new items were added/deleted
	268	if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
	269	{
	270	// update it
	271	int index = m_pParent->GetItemIndex(this);
	272
	273	wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
	274
	275	m_nIndex = (size_t)index;
	276	}
	277
	278	HWND hwndListbox = (HWND)m_pParent->GetHWND();
	279
	280	RECT rcUpdate;
	281
	282	if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
	283	m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
	284	{
	285	wxLogDebug(wxT("LB_GETITEMRECT failed"));
	286	}
	287
	288	InvalidateRect(hwndListbox, &rcUpdate, FALSE);
	289	}
	290
	291	// send an "item checked" event
	292	void wxCheckListBoxItem::SendEvent()
	293	{
	294	wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
	295	event.SetInt(m_nIndex);
	296	event.SetEventObject(m_pParent);
	297	m_pParent->ProcessCommand(event);
	298	}
	299
	300	// ----------------------------------------------------------------------------
	301	// implementation of wxCheckListBox class
	302	// ----------------------------------------------------------------------------
	303
	304	// define event table
	305	// ------------------
	306	BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
	307	EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
	308	EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
	309	END_EVENT_TABLE()
	310
	311	// control creation
	312	// ----------------
	313
	314	// def ctor: use Create() to really create the control
	315	wxCheckListBox::wxCheckListBox()
	316	{
	317	}
	318
	319	// ctor which creates the associated control
	320	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	321	const wxPoint& pos, const wxSize& size,
	322	int nStrings, const wxString choices[],
	323	long style, const wxValidator& val,
	324	const wxString& name)
	325	{
	326	Create(parent, id, pos, size, nStrings, choices, style, val, name);
	327	}
	328
	329	wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
	330	const wxPoint& pos, const wxSize& size,
	331	const wxArrayString& choices,
	332	long style, const wxValidator& val,
	333	const wxString& name)
	334	{
	335	Create(parent, id, pos, size, choices, style, val, name);
	336	}
	337
	338	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	339	const wxPoint& pos, const wxSize& size,
	340	int n, const wxString choices[],
	341	long style,
	342	const wxValidator& validator, const wxString& name)
	343	{
	344	return wxListBox::Create(parent, id, pos, size, n, choices,
	345	style \| wxLB_OWNERDRAW, validator, name);
	346	}
	347
	348	bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
	349	const wxPoint& pos, const wxSize& size,
	350	const wxArrayString& choices,
	351	long style,
	352	const wxValidator& validator, const wxString& name)
	353	{
	354	return wxListBox::Create(parent, id, pos, size, choices,
	355	style \| wxLB_OWNERDRAW, validator, name);
	356	}
	357
	358	// misc overloaded methods
	359	// -----------------------
	360
	361	void wxCheckListBox::Delete(int N)
	362	{
	363	wxCHECK_RET( N >= 0 && N < m_noItems,
	364	wxT("invalid index in wxListBox::Delete") );
	365
	366	wxListBox::Delete(N);
	367
	368	// free memory
	369	delete m_aItems[N];
	370
	371	m_aItems.RemoveAt(N);
	372	}
	373
	374	bool wxCheckListBox::SetFont( const wxFont &font )
	375	{
	376	size_t i;
	377	for ( i = 0; i < m_aItems.GetCount(); i++ )
	378	m_aItems[i]->SetFont(font);
	379
	380	wxListBox::SetFont(font);
	381
	382	return TRUE;
	383	}
	384
	385	// create/retrieve item
	386	// --------------------
	387
	388	// create a check list box item
	389	wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
	390	{
	391	wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
	392	return pItem;
	393	}
	394
	395	// return item size
	396	// ----------------
	397	bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
	398	{
	399	if ( wxListBox::MSWOnMeasure(item) ) {
	400	MEASUREITEMSTRUCT pStruct = (MEASUREITEMSTRUCT )item;
	401
	402	// save item height
	403	m_nItemHeight = pStruct->itemHeight;
	404
	405	// add place for the check mark
	406	pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
	407
	408	return TRUE;
	409	}
	410
	411	return FALSE;
	412	}
	413
	414	// check items
	415	// -----------
	416
	417	bool wxCheckListBox::IsChecked(size_t uiIndex) const
	418	{
	419	wxCHECK_MSG( uiIndex < (size_t)GetCount(), FALSE, _T("bad wxCheckListBox index") );
	420
	421	return GetItem(uiIndex)->IsChecked();
	422	}
	423
	424	void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
	425	{
	426	wxCHECK_RET( uiIndex < (size_t)GetCount(), _T("bad wxCheckListBox index") );
	427
	428	GetItem(uiIndex)->Check(bCheck);
	429	}
	430
	431	// process events
	432	// --------------
	433
	434	void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
	435	{
	436	// what do we do?
	437	enum
	438	{
	439	None,
	440	Toggle,
	441	Set,
	442	Clear
	443	} oper;
	444
	445	switch ( event.GetKeyCode() )
	446	{
	447	case WXK_SPACE:
	448	oper = Toggle;
	449	break;
	450
	451	case WXK_NUMPAD_ADD:
	452	case '+':
	453	oper = Set;
	454	break;
	455
	456	case WXK_NUMPAD_SUBTRACT:
	457	case '-':
	458	oper = Clear;
	459	break;
	460
	461	default:
	462	oper = None;
	463	}
	464
	465	if ( oper != None )
	466	{
	467	wxArrayInt selections;
	468	int count = 0;
	469	if ( HasMultipleSelection() )
	470	{
	471	count = GetSelections(selections);
	472	}
	473	else
	474	{
	475	int sel = GetSelection();
	476	if (sel != -1)
	477	{
	478	count = 1;
	479	selections.Add(sel);
	480	}
	481	}
	482
	483	for ( int i = 0; i < count; i++ )
	484	{
	485	wxCheckListBoxItem *item = GetItem(selections[i]);
	486	if ( !item )
	487	{
	488	wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
	489	continue;
	490	}
	491
	492	switch ( oper )
	493	{
	494	case Toggle:
	495	item->Toggle();
	496	break;
	497
	498	case Set:
	499	case Clear:
	500	item->Check( oper == Set );
	501	break;
	502
	503	default:
	504	wxFAIL_MSG( _T("what should this key do?") );
	505	}
	506
	507	// we should send an event as this has been done by the user and
	508	// not by the program
	509	item->SendEvent();
	510	}
	511	}
	512	else // nothing to do
	513	{
	514	event.Skip();
	515	}
	516	}
	517
	518	void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
	519	{
	520	// clicking on the item selects it, clicking on the checkmark toggles
	521	if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() ) {
	522	int nItem = HitTest(event.GetX(), event.GetY());
	523
	524	if ( nItem != wxNOT_FOUND ) {
	525	wxCheckListBoxItem *item = GetItem(nItem);
	526	item->Toggle();
	527	item->SendEvent();
	528	}
	529	//else: it's not an error, just click outside of client zone
	530	}
	531	else {
	532	// implement default behaviour: clicking on the item selects it
	533	event.Skip();
	534	}
	535	}
	536
	537	int wxCheckListBox::DoHitTestItem(wxCoord x, wxCoord y) const
	538	{
	539	int nItem = (int)::SendMessage
	540	(
	541	(HWND)GetHWND(),
	542	LB_ITEMFROMPOINT,
	543	0,
	544	MAKELPARAM(x, y)
	545	);
	546
	547	return nItem >= m_noItems ? wxNOT_FOUND : nItem;
	548	}
	549
	550
	551	wxSize wxCheckListBox::DoGetBestSize() const
	552	{
	553	wxSize best = wxListBox::DoGetBestSize();
	554	best.x += wxOwnerDrawn::GetDefaultMarginWidth(); // add room for the checkbox
	555	return best;
	556	}
	557
	558	#endif
	559